㻌 ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ䛿䚸䠎䠌䠌䠕ᖺᗘ䛻ᩥ㒊⛉Ꮫ┬䛛䜙䛂᥋ྜ⛉Ꮫඹྠ฼⏝䞉ඹྠ◊✲ᣐ
Ⅼ䛃䛸䛧䛶ㄆᐃ䛥䜜䚸⁐᥋ᕤᏛ䞉᥋ྜ⛉Ꮫ䛻㛵䛩䜛ᡃ䛜ᅜ䛷၏୍䛾⥲ྜ◊✲ᡤ䛸䛧䛶䚸ᅜෆእ䛛䜙ᗈ䛟ඹྠ◊✲ဨ䜢ཷ䛡ධ䜜䛶䛔䜛䚹㻌 ᮏ◊✲ᡤ䛾ඹྠ◊✲ဨ䛻ಀ䜛බເㄢ㢟䛻䛿䚸䛂୍⯡බເ◊✲ㄢ㢟䛃䛸䛂ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䛃䛾䠎✀㢮䛾༊ศ䜢タ䛡䛶䛔䜛䚹୍⯡බເ◊✲ㄢ㢟䛿䚸ᚑ๓䜎䛷䛾ྛ◊✲ศ㔝༢఩䛷䛾ඹྠ◊✲ㄢ㢟䛻㛵䛩䜛䜒䛾䛷䛒䜚䚸䠎䠌䠍䠌ᖺᗘ䜘䜚㛤ጞ䛧䛯ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䛷䛿䚸ᙜ◊✲ᡤ䛸䛧䛶㔜Ⅼⓗ䛻ྲྀ䜚⤌䜐䜉䛝◊✲ㄢ㢟䜢㑅ᐃ䛧䚸」ᩘ䛾ඹྠ◊✲ဨ䛸◊✲ᡤᩍဨ䛜䝏䞊䝮䛸䛧䛶ཧຍ䛧䛶ᙜヱㄢ㢟䛻ྲྀ䜚⤌䜐䜒䛾䛷䛒䜛䚹㻌 ≉䛻䚸ᚋ⪅䛾ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䛻䛚䛔䛶䛿䚸ᅜෆእ䛷䛾ከᵝ䛺Ꮫ⾡㡿ᇦ䛸䛾㐃ᦠ◊✲䜢㏻䛨䛶䚸᥋ྜ⛉Ꮫඹྠ฼⏝䞉ඹྠ◊✲ᣐⅬ䛾Ⓨᒎ䛻㈨䛩䜛䛣䛸䜢┠ⓗ䛸䛩䜛䚹䛥䜙䛻䚸䠎䠌䠍䠑ᖺᗘ䜘䜚ᅜ㝿ඹྠ◊✲ဨไᗘ䜢᪂䛯䛻タ䛡䚸⁐᥋䞉᥋ྜศ㔝䛾ୡ⏺ᣐⅬ
䛸䛧䛶㈉⊩䛩䜛䛣䛸䜢┠ᣦ䛧䛶䛔䜛䚹㻌 䠎䠌䠍䠒ᖺᗘ䛻䛚䛔䛶䛿䚸௨ୗ䛻♧䛩ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䜢㑅ᐃ䛧䚸㐙⾜䛧䛶䛝䛯䚹䈄 ᚤ⢏Ꮚ䜢฼⏝䛧䛯⏺㠃᥋ྜไᚚ䛻ᇶ䛵䛟䝇䝬䞊䝖᥋ྜᢏ⾡䛾㛤ᣅ䠄⥅⥆䠋ᙺ๭ศᢸᆺ䠅㻌 㻌 䠄௦⾲⏦ㄳ⪅䠖ෆ⸨ ∾⏨ ᩍᤵ䠅䈄 ␗✀ᮦᩱ䜢䜲䞁䜽⣲ᮦ䛸䛩䜛ከⰍⓗ䛺 3D 䝥䝸䞁䝍䝥䝻䝉䝇䛾ᵓ⠏㻌 㻌 䠙㐀ᙧయ䛾ෆ㒊䛻䛚䛡䜛᥋ྜ⏺㠃䛾ほᐹ䛸ホ౯䠙䠄⥅⥆䠋ᙺ๭ศᢸᆺ䠅㻌 䠄௦⾲⏦ㄳ⪅䠖᱒ཎ ⪽⚽ ෸ᩍᤵ䠅䈄 䝡䝑䜾䝕䞊䝍䜢㥑౑䛧䛯ḟୡ௦㧗ရ㉁䝺䞊䝄⁐᥋ᢏ⾡䛾◊✲䠄᪂つ䠋䠢䠯ᆺ䠅䠄௦⾲⏦ㄳ⪅䠖ᕝே ὒ௓ ෸ᩍᤵ䠅䠎䠌䠍䠒ᖺᗘᐇ᪋䛾୍⯡බເ◊✲ㄢ㢟䛸ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䜈䛾ཧຍேᩘ䛿ୗ⾲䛾㏻䜚䛷䛒䜛䚹୍⯡බເ◊✲ㄢ㢟ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟ᅜෆඹྠ◊✲ဨᅜ㝿ඹྠ◊✲ဨᅜෆඹྠ◊✲ဨᅜ㝿ඹྠ◊✲ဨ

䠎䠎䠓ே

䠔ே

䠍䠒ே*

䠌ே

㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 *୍⯡බເ◊✲ㄢ㢟䛸䛾㔜」⏦ㄳㄢ㢟䜢ྵ䜐䚹㻌 䛺䛚䚸䠎䠌䠍䠓ᖺᗘ䛻ᐇ᪋䛩䜛ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䛸䛧䛶䚸ḟ䛾䠏䝔䞊䝬䜢㑅ᐃ䛧䛶䛔䜛䚹䈄 ␗✀ᮦᩱ䜢䜲䞁䜽⣲ᮦ䛸䛩䜛ከⰍๅⓗ䛺 3D 䝥䝸䞁䝍䝥䝻䝉䝇䛾ᵓ⠏㻌 㻌 䠙㐀ᙧయ䛾ෆ㒊䛻䛚䛡䜛᥋ྜ⏺㠃䛾ほᐹ䛸ホ౯䠙䠄⥅⥆䠋ᙺ๭ศᢸᆺ䠅㻌 㻌 䠄௦⾲⏦ㄳ⪅䠖᱒ཎ ⪽⚽ ෸ᩍᤵ䠅䈄 䝡䝑䜾䝕䞊䝍䜢㥑౑䛧䛯ḟୡ௦㧗ရ㉁䝺䞊䝄⁐᥋ᢏ⾡䛾◊✲䠄⥅⥆䠋ᙺ๭ศᢸᆺ䠅㻌 㻌 䠄௦⾲⏦ㄳ⪅䠖ᕝே ὒ௓ ෸ᩍᤵ䠅䈄 㠀㔠ᒓ␗ᮦ᥋ྜ䛻ྥ䛡䛯ඛ㐍ᮦᩱ䝥䝻䝉䝇䛾㛤Ⓨ䠄᪂つ䠋䠢䠯ᆺ䠅㻌 㻌 䠄௦⾲⏦ㄳ⪅䠖ෆ⏣ ൤୍㑻 ෸ᩍᤵ䠅ඹྠ◊✲ 㢟┠୍ぴ䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆ᚤ⢏Ꮚ䜢฼⏝䛧䛯⏺㠃᥋ྜไᚚ䛻ᇶ䛵䛟䝇䝬䞊䝖᥋ྜᢏ⾡䛾㛤ᣅ㻝䠊 䜶䜰䝻䝌䝹䝕䝫䝆䝅䝵䞁ἲ䜢⏝䛔䛯ᅛయ㟁ゎ㉁ⷧ⭷䛾ᖖ స〇

ྡྂᒇ኱Ꮫ

ᩍᤵ

ධᒣ䚷ᜤᑑ

䞉䞉䞉 㻝

㻞䠊 จ㞟⢏Ꮚࡢᔂቯ⌧㇟ࡢࢩ࣑ࣗ
࣮ࣞࢩࣙࣥ

ᮾ໭኱Ꮫ

ᩍᤵ
ຓᩍ

ຍ⣡䚷⣧ஓ
▼ཎ䚷┿࿃

䞉䞉䞉 㻟

㻟䠊 ᶵᲔⓗ⢏Ꮚ」ྜ໬䝥䝻䝉䝇䛻䜘䜛䜰䝹䝭䝘⣔䝉䝷䝭䝑䜽䝇䛾ᚤᵓ㐀䛸≉ᛶไᚚᶓ὾ᅜ❧኱Ꮫᩍᤵከ䚻ぢ㻌㻌⣧୍

䞉䞉䞉 㻡

෸ᩍᤵ

㔝ᮧ䚷ಇஅ

䞉䞉䞉 㻣

㻠䠊 䝅䝸䜹䝘䝜⢏Ꮚ䜢⏝䛔䛯䜹䝡⬊Ꮚ䛾 ኱㜰ᗓ❧኱Ꮫ௜╔ᢚไ␗✀ᮦᩱ䜢䜲䞁䜽⣲ᮦ䛸䛩䜛ከⰍⓗ䛺䠏䠠䝥䝸䞁䝍䝥䝻䝉䝇䛾ᵓ⠏㻝䠊 䝃䝇䝨䞁䝅䝵䞁䝥䝷䝈䝬⁐ᑕ᪋ᕤ⪏ ᮾ໭኱Ꮫ⎔ቃ䝁䞊䝔䜱䞁䜾䛾⓶⭷≉ᛶホ౯

ᩍᤵ

ᑠᕝ䚷࿴ὒ

䞉䞉䞉 㻥

㻞䠊 㟁Ꮚ䝡䞊䝮✚ᒙ㐀ᙧ䛻䛚䛡䜛㔠ᒓᮦᩱ⤌⧊䛾ไᚚ

ᮾ໭኱Ꮫ෸ᩍᤵᑠἨ䚷㞝୍㑻䞉䞉䞉 㻝㻝㻟䠊 㓟໬䝍䞁䜾䝇䝔䞁⣔Ỉ࿴≀䜢⏝䛔䛯୰ ᆺ⇞ᩱ㟁ụ⏝䝉䝷䝭䝑䜽㟁
ゎ㉁䛾㛤Ⓨᮾி⌮⛉኱Ꮫ෸ᩍᤵ⏣୰䚷ඃᐇ䞉䞉䞉 㻝㻟㻠䠊 ❅⣲ྵ᭷㻯㼛㻙㻯㼞㻙㻹㼛㻌✚ᒙ㐀ᙧయ䛾ᶵᲔⓗᛶ㉁

ᮾ໭኱Ꮫ

෸ᩍᤵ

㔝ᮧ䚷┤அ

䞉䞉䞉 㻝㻡㻡䠊 ᚤ⢏Ꮚ䝨䞊䝇䝖ග㐀ᙧ䛻䜘䜛䝉䝷䝭䝑䜽䝇ᵓ㐀య䛾స〇⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲ ᇼ⏣䚷ᖿ๎ᡤဨ䞉䞉䞉 㻝㻣㻢䠊 ග㐀ᙧἲ䜢⏝䛔䛯㔠ᒓ䛚䜘䜃䝉䝷䝭䝑䜽䝇ᵓ㐀య䛾⮬⏤ᡂᆺ䝬䜲䜽䝻ග㐀ᙧἲ䜢⏝䛔䛯㔠ᒓ䛚䜘䜃䝉䝷䝭䝑䜽䝇〇ᚤ⣽ᵓ㐀䛾ᙧᡂ㤳㒔኱ᏛᮾிᲷ᪉䚷⿱୍䞉䞉䞉 㻝㻥

෸ᩍᤵ
ຓᩍ

ᕝୖ䚷༤ኈ
ᑿᓮ䚷ோᚿ

䞉䞉䞉 㻞㻝

㜿༡ᕤᴗ㧗➼ᑓ㛛 ෸ᩍᤵ
Ꮫᰯ

すᮏ䚷ᾈྖ

䞉䞉䞉 㻞㻟

ຓᩍ䝡䝑䜾䝕䞊䝍䜢㥑౑䛧䛯ḟୡ௦㧗ရ㉁䝺䞊䝄⁐᥋ᢏ⾡䛾◊✲㻝䠊 䝡䝑䜽䝕䞊䝍䜢㥑౑䛧䛯ḟୡ௦㧗ရ ୕㔜኱Ꮫ㉁䝺䞊䝄⁐᥋ᢏ⾡䛾◊✲䇷䝺䞊䝄ษ᩿⌧㇟䛾ゎ᫂䛻㛵䛩䜛᳨ウ䇷㻞䠊 ↓⁐⼥᥋ྜ䛻㛵䛩䜛ᇶ♏ⓗ◊✲−i−䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆୍⯡බເ◊✲ㄢ㢟䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆䛻䛴䛔䛶䛿䚸ඛᑟⓗ㔜Ⅼㄢ㢟䛻䜒ᥖ㍕

᥋ྜ䝥䝻䝉䝇◊✲㒊㛛䛆䜶䝛䝹䜼䞊ไᚚᏛศ㔝䛇㻝䠊 ୕ゅἼ䜢⏝䛔䛯䝟䝹䝇䜰䞊䜽䛻䛚 ᮾி㒔ᕷ኱Ꮫ䛡䜛㔠ᒓ⵨Ẽΰධ᫬䛾ᨺᑕᦆኻ䛾ゎ᫂෸ᩍᤵ㻞䠊 䝟䝹䝇䜰䞊䜽䛻䛚䛡䜛㟁ὶ❧䛱ୖ䛜䜚᫬䛾❅⣲⃰ᗘ䛾᫬㛫ኚ໬኱Ꮫ㝔⏕ 㧗ᶫ䚷ᗈᶞᮾி㒔ᕷ኱Ꮫᒾᑿ䚷ᚭ䞉䞉䞉 㻞㻡䞉䞉䞉 㻞㻣㻟䠊 䜰䞊䜽䝥䝷䝈䝬䛾Ⓨ⏕䛸ไᚚ䛚䜘䜃 Ἀ⦖┴ᕤᴗᢏ⾡䝉 ୺௵◊✲ Ჴཎ䚷㟹ᮦᩱ䝥䝻䝉䝇䜈䛾ᛂ⏝䞁䝍䞊ဨ㕲➽ᅽ᥋䜈䛾⁐⼥ụ☢Ẽไᚚ䜰䞊䜽⁐᥋ἲ䛾㐺⏝䛻㛵䛩䜛◊✲䞉䞉䞉 㻞㻥㻠䠊 㧗ᙇຊ㗰䜢ᑐ㇟䛸䛧䛯䜰䝥䝉䝑䝖⁐᥋䛻㛵䛩䜛◊✲㻌

⇃ᮏ኱Ꮫ

ᩍᤵ
ᑎᓮ䚷⚽⣖
኱Ꮫ㝔⏕ ᯘ䚷⯆ᖹ኱Ꮫ㝔⏕ ᐑཎ䚷ඃ䞉䞉䞉 㻟㻝㻡䠊 䝽䜲䝲⁐⼥ไᚚ䜢⏝䛔䛯㻭㼞㻙㻳㻹㻭⁐᥋䛾Ᏻᐃᛶྥୖᢏ⾡≀㉁䞉ᮦᩱ◊✲ᶵ
ᵓ

䜾䝹䞊䝥
䝸䞊䝎䞊

䞉䞉䞉 㻟㻟㻢䠊 䝃䝤䝬䞊䝆䜰䞊䜽⁐᥋⏝䝣䝷䝑䜽䝇 㮵ඣᓥ┴ᕤᴗᢏ⾡ ◊✲ဨᮦ䜈䛾ⅆᒣᄇฟ≀䛾ά⏝䛻㛵䛩䜛 䝉䞁䝍䞊
◊✲

୰ᮧ䚷↷⨾

ᇼஅෆ䚷ᝆ௓ 䞉䞉䞉 㻟㻡㻣䠊 㼀㻵㻳⁐᥋䛻䛚䛡䜛┤஺㢼䛾ὶ㏿ኚ໬᫬䛾ẕᮦ䜈䛾⇕ὶ᮰ศᕸ䛾ゎᮾி㒔ᕷ኱Ꮫ

኱Ꮫ㝔⏕ ┿ᰤ⏣䚷⩏ྐ 䞉䞉䞉 㻟㻣㻤䠊 ⁐᥋䜰䞊䜽⌧㇟䠈⁐⼥ụ⌧㇟䛚䜘䜃⁐᥋㍺㏦⌧㇟ゎᯒ㠀ᑐ⛠஺ὶ☢ሙ䜢⏝䛔䛯⁐⼥ụ☢Ẽไᚚ䜰䞊䜽⁐᥋ἲ䛾◊✲

⌰⌫኱Ꮫ

෸ᩍᤵ

ᯇ⏣䚷୍᪼

䞉䞉䞉 㻟㻥㻥䠊 ஺ὶ䝔䜱䜾⁐᥋᫬䛾⁐⼥ụෆ䛾㝜ᴟⅬไᚚ䛻㛵䛩䜛◊✲

ᐑᓮ኱Ꮫ

෸ᩍᤵ

‫‮‬ᆅ䚷ᩄྐ䞉䞉䞉 㻠㻝㻝㻜䠊 㧗㏿ᗘ䝡䝕䜸䜹䝯䝷䜢⏝䛔䛯⇕䝥䝷 ஑ᕞ኱Ꮫ䝈䝬୰䛾ᇶ♏⌧㇟䛾ྍど໬

ᩍᤵ
ຓᩍ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

Ώ㑓䚷㝯⾜
⏣୰䚷Ꮫ
ᶫワ䚷ኴ㑻
⦖⏣䚷♸ᚿ

䞉䞉䞉 㻠㻟㻝㻝䠊 ཯ᛂ㠀ᖹ⾮䝰䝕䝹䛻䛚䛡䜛㧗࿘Ἴ ஑ᕞ኱Ꮫ⇕䝥䝷䝈䝬䛾ᩘ್ゎᯒ䞉䞉䞉 㻠㻡ᩍᤵΏ㑓䚷㝯⾜኱Ꮫ㝔⏕ ᑠ㛵䚷ᝆኴ㑻኱Ꮫ㝔⏕ ⏣ᓥ䚷ྖ

− ii −

䛆䜶䝛䝹䜼䞊ኚ᥮ᶵᵓᏛศ㔝䛇㻝䠊 ኱Ẽᅽ㠀ᖹ⾮䝥䝷䝈䝬䝆䜵䝑䝖䛾ᨺ ᪥ᮏᩥ⌮኱Ꮫ㟁ᇶ♏≉ᛶ䛻㛵䛩䜛◊✲෸ᩍᤵᕝᓮ㻌㻌ᩄஅ㻝䠊 䝺䞊䝄䞊ㄏ㉳䝥䝷䝈䝬䛻䜘䜛䝘䝜⢏ ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ
Ꮚྜᡂ

ఀ⸨䚷๛ோ

䞉䞉䞉 㻠㻣

䠘Ꮫෆ䠚䛆ຍᕤ䝥䝻䝉䝇Ꮫศ㔝䛇㻝䠊 䜶䝛䝹䜼䞊䝡䞊䝮䛸≀㉁䛸䛾┦஫స⏝⌧㇟䛾ゎ᫂㉸▷䝟䝹䝇䝺䞊䝄䞊䛻䜘䜛ຍᕤ䝥䝻䝉䝇䛻㛵䛩䜛◊✲ᐑᓮ኱Ꮫ䞉䞉䞉 㻠㻤෸ᩍᤵ⏥⸨䚷ṇே㻞䠊 䝺䞊䝄䞊ຍᕤ᫬䛻䛚䛡䜛Ⅳ⣲⧄⥔ ᮾிᕤ⛉኱Ꮫᙉ໬䝥䝷䝇䝏䝑䜽䛾⇕ⓗ⌧㇟䛻㛵䛩䜛ᩘ್ゎᯒ෸ᩍᤵㅮᖌ䞉䞉䞉 㻡㻜⳥ụ䚷ྖ኱ஂಖ䚷཭㞞㻟䠊 䝣䜵䝮䝖⛊䝺䞊䝄䞊䜰䝤䝺䞊䝅䝵䞁䛻䜘䜚䝩䜴㓟ሷ໬ྜ≀⾲㠃䛻ᙧᡂ䛥䜜䛯䝩䞊䝹ᙧែ䛾䝺䞊䝄䞊೫ග

ᩍᤵ
ᑠ⋢䚷ᒎᏹ
኱Ꮫ㝔⏕ ᕤ⸨䚷⍞ᕫ䞉䞉䞉 㻡㻞ຓᩍ⠛Ọ䚷ᮾ࿃䞉䞉䞉 㻡㻡

㮵ඣᓥ┴ᕤᴗᢏ⾡ ୺௵◊✲ ℩▱䚷ၨஂ䝉䞁䝍䞊ဨ䞉䞉䞉 㻡㻣

⛅⏣኱Ꮫ㻠䠊 䝣䜵䝮䝖⛊䝺䞊䝄ㄏ㉳䝘䝜࿘ᮇᵓ㐀 ᒸᒣ኱Ꮫᙧᡂ䛻䜘䜛㧗ᗘ⏕యᮦᩱ๰〇䛻㛵䛩䜛◊✲㻡䠊 䝺䞊䝄䝤䝺䞊䝆䞁䜾䛻䜘䜛␗✀ᮦᩱ᥋ྜ䛻㛵䛩䜛◊✲㻢䠊 㟷Ⰽ༙ᑟయ䝺䞊䝄䞊䜢⏝䛔䛯㖡⓶ ㏆␥኱Ꮫ⭷䛾ᙧᡂ䛻㛵䛩䜛◊✲

኱Ꮫ㝔⏕

௝▼䚷ṇ๎

䞉䞉䞉 㻡㻥㻣䠊 䝣䜯䜲䝞䞊䝺䞊䝄䞊䜢⏝䛔䛯⢊ᮎ
⁐⼥䛻䜘䜛㼀㼕ྜ㔠⓶⭷ᙧᡂ䛻㛵䛩
䜛◊✲

㏆␥኱Ꮫ

ᩍᤵ
ຓᩍ

୰㔝䚷ேᚿ
ὠᒣ䚷⨾✑

䞉䞉䞉 㻢㻜㻤䠊 䝺䞊䝄⁐᥋䛻䜘䜛㻭㼘ྜ㔠䛸㻹㼓ྜ㔠
䛾␗ᮦ᥋ྜ

㛵す኱Ꮫ

ᩍᤵ

すᮏ㻌㻌᫂⏕

䞉䞉䞉 㻢㻝㻥䠊 䜶䝛䝹䜼䞊䝡䞊䝮䛻䜘䜛᪂⾲㠃ᨵ㉁ᶵ⬟䛾๰〇㻌㻌㠀⇕䝺䞊䝄䞊ຍᕤ䛻䜘䜛㔠ᒓ⾲㠃䜈䛾᪂ᶵ⬟௜୚

ி㒔኱Ꮫ

෸ᩍᤵ
◊✲ဨ

䞉䞉䞉 㻢㻞
ᶫ⏣㻌㻌ᫀᶞ
༖㔝㻌㻌᣺୍㑻㻝㻜䠊 ᅛయ䜲䜸䞁஺᥮ἲ䜢⏝䛔䛯㔠ᒓ䜲䜸䞁ῧຍ䛻䜘䜛䜺䝷䝇䛾ຍᕤ≉ᛶ
ྥୖ

༓ⴥ኱Ꮫ

෸ᩍᤵ

ᯇᆏ㻌㻌ኊኴ䞉䞉䞉 㻢㻡㻝㻝䠊 䝣䜵䝮䝖⛊䝺䞊䝄䞊ບ㉳䝥䝷䝈䝰䝙䝑䜽㏆᥋ሙ䛻䜘䜛䝅䝸䝁䞁⾲㠃䛾䝘䝜䜰䝤䝺䞊䝅䝵䞁ᮾி㎰ᕤ኱Ꮫ

෸ᩍᤵᐑᆅ㻌㻌ᝅ௦䞉䞉䞉 㻢㻣㻝㻞䠊 䝺䞊䝄⢊య⫗┒ἲ䛻䛚䛡䜛㐃⥆䝺䞊䝄ᤲᘬ䛻䜘䜛⓶⭷ᙧᡂ䜈䛾ᙳ㡪▼ᕝ┴ᕤᴗヨ㦂ሙ ◊✲ဨᒣୗ㻌㻌㡰ᗈ䞉䞉䞉 㻢㻥

− iii −

㻝㻟䠊 䝣䜵䝮䝖⛊䝺䞊䝄䞊䝣䝹䞊䜶䞁䝇ไᚚ䛻䜘䜚ኚ໬䛩䜛ගゐ፹ᶵ⬟䛻㛵
䛩䜛◊✲

ྜྷ⏣䚷ᐇ

䞉䞉䞉 㻣㻝

㏆␥኱Ꮫᩍᤵ㻝䠊 䝺䞊䝄ษ᩿䛻䛚䛡䜛䝡䞊䝮䛸ᮦᩱ䛾┦஫స⏝䛺䜙䜃䛻䝺䞊䝄ຍᕤ⌧
㇟䛾ゎ᫂

୕㔜኱Ꮫ

ᕝୖ䚷༤ኈ
෸ᩍᤵ
ຓᩍ
ᑿᓮ䚷ோᚿ
኱Ꮫ㝔⏕ ᫝ᕝ䚷ὒᩯ䞉䞉䞉 㻣㻞㻞䠊 䝺䞊䝄ຍᕤ䛻䛚䛡䜛䝡䞊䝮䛸ᮦᩱ䛾┦஫స⏝䛺䜙䜃䛻䝺䞊䝄ຍᕤ⌧㇟䛾ゎ᫂㻙䝺䞊䝄䜢⏝䛔䛯㔠ᒓ㻟㻰䝥䝸䞁䝍㐀ᙧ䛻䛚䛡䜛㔠ᒓෆ㒊ᣲື䛾㼄⥺㏱
どほᐹ㻙⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲ ℩Ώ䚷┤ᶞᡤဨ䞉䞉䞉 㻣㻠

䛆䝺䞊䝄䝥䝻䝉䝇Ꮫศ㔝䛇㻟䠊 䝺䞊䝄⁐᥋᫬䛾⁐‫‮‬䛾ὶື⌧㇟䛾 ᮾி኱Ꮫほᐹ㻠䠊 䝺䞊䝄␗ᮦ᥋ྜ

෸ᩍᤵ
㛗⸨䚷ᆂ௓
኱Ꮫ㝔⏕ ▮ᓥ䚷⏤ᇶ㜿༡ᕤᴗ㧗➼ᑓ㛛 ෸ᩍᤵ
Ꮫᰯ

すᮏ䚷ᾈྖ

㻝䠊 䝘䝜ⷧ⭷䛾ᙉᗘ䞉⑂ປ䞉䜽䝸䞊䝥≉ᛶ䛻ཬ䜌䛩⾲㠃㓟໬ᒙ䛾ᙳ㡪኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵ⟪ᓥ䚷ᘯ஧㻞䠊 ⯟✵ᶵ⏝䜰䝹䝭䝙䜴䝮ྜ㔠䛾䝺䞊䝄⁐᥋㒊䛾≉ᛶホ౯኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵబ㔝䚷ᬛ୍኱Ꮫ㝔⏕ ャᮧ䚷ᔞஅ኱Ꮫ㝔⏕ ᕝᔱ䚷ගᑗ㻟䠊 㖡䝘䝜ⷧ⭷䛾⑂ປ䛝⿣㐍ᒎ䛻ཬ䜌䛩⾲㠃㓟໬ᒙ䛾ᙳ㡪኱Ꮫ㝔ᕤᏛ◊✲⛉ ຓᩍ䠘Ꮫෆ䠚

− iv −㏆⸨䚷ಇஅ䞉䞉䞉 㻣㻢䞉䞉䞉 㻣㻣

᥋ྜᶵᵓ◊✲㒊㛛䛆⁐᥋ᶵᵓᏛศ㔝䛇኱▼䚷▱ྖ䞉䞉䞉 㻣㻥
⏕⏣┠䚷ಇ⚽

㻝䠊 ␗ᮦ⏺㠃䛾ᚤ⣽ᵓ㐀䛾ほᐹ䚸ホ౯ Ⱚᾆᕤᴗ኱Ꮫ
≀㉁䞉ᮦᩱ◊✲ᶵཬ䜃ไᚚ᭷ᶵ↓ᶵ᥋ྜ⏺㠃䛾ᚤᵓ㐀ほᐹ ᵓ

ᩍᤵ
⤫ᣓ䝬
䝛䞊
䝆䝱䞊

㻞䠊 ᦶ᧿䜢฼⏝䛧䛯ᅛ┦᥋ྜ㐣⛬䛷䛾ධ⇕䛸⥅ᡭ≉ᛶ෸ᩍᤵబ⸨䚷⿱኱Ꮫ㝔⏕ ㉿䚷ኳἼᮾ໭኱Ꮫ㻟䠊 ␗ᮦ⏺㠃䛾ᚤ⣽ᵓ㐀䛾ほᐹ䚸ホ౯ ≀㉁䞉ᮦᩱ◊✲ᶵᵓཬ䜃ไᚚ㔠ᒓ㻛㔠ᒓ㓟໬≀䛾᥋ྜ⏺㠃䛻䛚䛡䜛䝘䝜䝺䝧䝹䛷䛾⤌ᡂཬ䜃ᵓ㐀ゎᯒ䞉䞉䞉 㻤㻝

⏕⏣┠䚷ಇ⚽ 䞉䞉䞉 㻤㻟
⤫ᣓ䝬
䝛䞊
䝆䝱䞊
䝫䝇䝗䜽◊ ᮌὠ䚷䛯䛛䛚✲ဨ䜶䞁䝆䝙䜰 ኱஭䚷ᬡᙪ㻠䠊 ᨵⰋ㻥㻯㼞㻙㻝㻹㼛㗰⁐᥋㒊䛾ᚤ⣽⤌⧊ほᐹⓎ㟁タഛᢏ⾡᳨ᰝ ୺௵◊✲ すᕝ䚷⪽༠఍ဨ䞉䞉䞉 㻤㻡㻡䠊 Ỉ୰⾪ᧁἼ䜢⏝䛔䛯㧗ᶵ⬟ⷧᯈᮦᩱ䛾᥋ྜ䛻䜘䜛␗ᮦ⏺㠃䛾ホ౯

⇃ᮏ኱Ꮫ

ᩍᤵ

እᮏ㻌㻌࿴ᖾ䞉䞉䞉 㻤㻣㻢䠊 ⇕㟁䝉䝷䝭䜽䝇ᮦᩱ䛻ᑐ䛩䜛㟁ᴟ᥋ ⚄ᡞ኱Ꮫ
ྜ⏺㠃ホ౯

ᩍᤵ

⏣୰㻌㻌ඞᚿ䞉䞉䞉 㻤㻥䠘Ꮫෆ䠚㻝䠊 ⏺㠃䝘䝜ᵓ㐀ゎᯒ䛻䜘䜛ྠ✀䞉␗✀ᮦᩱ᥋ྜ㒊䛾㧗ಙ㢗໬⤌⧊ไᚚ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵ
ຓᩍ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

ᘅ℩䚷᫂ኵ
ᯇ⏣䚷᭸ᕫ
๓⏣䚷᭷ᡂ
ᮏᒣ䚷ၨኴ
ඵᑿ䚷ᓫྐ

㻞䠊 ⏺㠃䝘䝜ᵓ㐀ゎᯒ䛻䜘䜛␗✀㔠ᒓᮦᩱ᥋ྜ㒊䛾㧗ಙ㢗໬⤌⧊ไᚚ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵᑠ᳚䚷ᬛ㻟䠊 ᛴ㏿ຍ⇕ᾮ┦䜶䝢䝍䜻䝅䝱䝹ᡂ㛗䛻䜘䜚స〇䛧䛯༙ᑟయᚤ⣽ᵓ㐀䛾⤖ᬗᛶホ౯኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

ᚿᮧ䚷⪃ຌ
ᒸ䚷༤ྐ
ᑠᒣ䚷┿ᗈ
⏣୰䚷❶࿃

㻠䠊 䝇䝔䞁䝺䝇㗰⟩䛾䝺䞊䝄↷ᑕ䛻䜘䜛 ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ䝭䜽䝻⤌⧊ኚ໬䛸䛭䜜䛻ཬ䜌䛩〇㐀䝥䝻䝉䝇䛾ᙳ㡪−v−᳃䚷⿱❶䛆᥋ྜ⏺㠃ᶵᵓᏛศ㔝䛇㻝䠊 㕲㗰ᮦᩱ䜈䛾㐺⏝䜢⪃៖䛧䛯᥋ྜ ㏆␥኱Ꮫ䝒䞊䝹ྛ㒊䛾ホ౯

෸ᩍᤵ

⏕⏣䚷᫂ᙪ

䞉䞉䞉 㻥㻝㻞䠊 㧗⬟⋡䞉㧗ຠ⋡䞉ప⎔ቃ㈇Ⲵ⁐᥋䞉 ᮾி኱Ꮫ᥋ྜ䝥䝻䝉䝇䛾㛤Ⓨ䛸ホ౯㻭㻱ἲ䛾↓⥺໬䛻䜘䜛㗰ᮦ㻲㻿㼃䛾䜲䞁䝥䝻䝉䝇䝰䝙䝍䝸䞁䜾

≉௵ㅮᖌ

ఀ⸨䚷ᾏኴ

䞉䞉䞉 㻥㻟㻟䠊 㠀㕲ᮦᩱ䛾ᦶ᧿ᨩᢾ᥋ྜ䠄㻲㻿㼃㻕䛸 ᗈᓥ┴❧⥲ྜᢏ⾡ ๪୺௵◊ ኱▼䚷㑳⥅ᡭ䛾ᶵ⬟ホ౯◊✲ᡤ✲ဨረᛶὶື䜢฼⏝䛧䛯᥋ྜᢏ⾡䛾㛤Ⓨ䞉䞉䞉 㻥㻡㻠䠊 㼀㼕㻙㻢㻭㼘㻙㻠㼂ྜ㔠ᦶ᧿ᨩᢾ᥋ྜ⥅ᡭ䛾᥋ྜ㒊䛚䜘䜃䛭䛾㏆ഐ䛾䝭䜽䝻⤌⧊䛸◳䛥ศᕸ䛻ཬ䜌䛩⇕ฎ⌮䛾
ᙳ㡪

㏆␥኱Ꮫ

ᩍᤵ
෸ᩍᤵ

ᮌཱྀ䚷᫛஧
௰஭䚷ṇ᫛

䞉䞉䞉 㻥㻣㻡䠊 ᦶ᧿⢊ᮎ↝⤖䛻䜘䜚స〇䛥䜜䛯㻭㼘㻛㻿㼕㻯」ྜᮦᩱ䛾⇕ఏᑟ⋡኱㜰⏘ᴗᢏ⾡◊✲ ◊✲ဨ
ᡤ

ᮌඖ䚷៞ஂ

䞉䞉䞉 㻥㻥ᆏᮧ䚷຾㻢䠊 㕲㗰ᮦᩱ䛾ᦶ᧿ᨩᢾ᥋ྜ䠄㻲㻿㼃䠅䛸 ᗈᓥ┴❧⥲ྜᢏ⾡ ๪㒊㛗◊✲ᡤ๪୺௵◊ ᯇⴥ䚷ᮁ⥅ᡭ䛾ᶵ⬟ホ౯✲ဨ䠄⌫㠃䝒䞊䝹䜢⏝䛔䛯Ⅼ᥋ྜᢏ⾡๪୺௵◊ ᒣᮏ䚷೺䛾㛤Ⓨ䠅✲ဨ䞉䞉䞉 㻝㻜㻝㻣䠊 㕲㗰ᮦᩱ䛾ᦶ᧿ᨩᢾ᥋ྜ䠄㻲㻿㼃䠅䛸 ⚄ዉᕝ┴⏘ᴗᢏ⾡ ୺௵◊✲ ⸃⏣䚷ᑑ㝯⥅ᡭ䛾ᶵ⬟ホ౯䝉䞁䝍䞊ဨᦶ᧿᧠ᢾ䝥䝻䝉䝇䛻䜘䜛䝺䞊䝄⫗┒ᒙ㔠ᒓ⤌⧊䛾ᚤ⣽໬䞉䞉䞉 㻝㻜㻟㻤㻚 㻲㻿㼃䛻䜘䜛䝉䝷䝭䝑䜽䝇䛸㔠ᒓ䛾᥋ྜᢏ⾡䛾◊✲

బ⸨䚷ⱥ୍Ᏹᐂ⯟✵◊✲㛤Ⓨ ᩍᤵᶵᵓ◊✲㛤Ⓨ ⸨஭䚷๛ဨ≀㉁䞉ᮦᩱ◊✲ᶵᵓ ◊✲ဨୗ⏣䚷୍ဢ䞉䞉䞉 㻝㻜㻡㻥㻚 ⢏Ꮚἲ䛸᭷㝈せ⣲ἲ䜢⏝䛔䛯㻲㻿㼃ຊᏛゎᯒᡭἲ䛾ᵓ⠏኱㜰ᗓ❧኱Ꮫ෸ᩍᤵᰘཎ䚷ṇ࿴䞉䞉䞉 㻝㻜㻣㻝㻜㻚 ෭㛫ᅽᘏ㗰ᯈ㻿㻼㻯㻯䜢ẕᮦ䛸䛧䛯
ᦶ᧿ᨩᢾⅬ᥋ྜ⥅ᡭ䛾⑂ປ≉ᛶ䛻㛵䛩䜛㈇Ⲵᙧᘧ䛾ᙳ㡪

ᗈᓥ኱Ꮫ

ᩍᤵ

Ⳣ⏣䚷῟

䞉䞉䞉 㻝㻜㻥㻝㻝㻚 㻭㻭㻙㼀㻵㻳㻌⁐᥋㒊䛾ᶵᲔⓗᛶ㉁䛻ཬ 㱟㇂኱Ꮫ䜌䛩ᦶ᧿ᨩᢾ䝥䝻䝉䝇䛾ᙳ㡪㻝㻞㻚 ᦶ᧿ᨩᢾ᥋ྜ䛻䜘䜛㼃㻯㻙㻯㼛㉸◳ྜ㔠䛸Ⅳ⣲㗰䛾㔜䛽᥋ྜ኱Ꮫ㝔⏕ ᚨ⏣㻌㻌㱟ஓ኱㜰⏘ᴗᢏ⾡◊✲ ◊✲୺௵ᡤ− vi −㛗ᒸ䚷஽䞉䞉䞉 㻝㻝㻝㻌 㻝㻝㻟 㻌䞉䞉䞉㻌㻝㻟㻚 ⣧㖡䛚䜘䜃㖡ྜ㔠䛾ᦶ᧿᧠ᢾฎ
⌮䛻䜘䜛ᙉ໬

㔞Ꮚ⛉Ꮫᢏ⾡◊✲ ୺ᖿ◊✲ ℈ཱྀ䚷኱㛤Ⓨᶵᵓဨ㻝㻠㻚 㻭㻰㻯㻝㻞ᅽ₽䝫䞊䝷䝇㻭㼘䛾ⓎἻᣲື ⩌㤿኱Ꮫ䠉䝇䝨䞊䝃ἲ䛻䜘䜚స〇䛧䛯䝫䞊䝷䝇㻭㼘䛾෌ⓎἻ䠉෸ᩍᤵ༙㇂䚷⚞ᙪ኱Ꮫ㝔⏕ ᯇୗ䚷㥴ே䞉䞉䞉 㻝㻝㻣㻝㻡㻚 䝫䞊䝷䝇䜰䝹䝭䝙䜴䝮䛾㻭㻰㻯㻝㻞㻭㼘ྜ ⩌㤿኱Ꮫ㔠⢊ᮎῧຍ䛻䜘䜛ᶵᲔⓗᛶ㉁ྥୖ
䛾᳨ウ

෸ᩍᤵ
༙㇂䚷⚞ᙪ
኱Ꮫ㝔⏕ ụ⏣䚷⿱ᶞ኱Ꮫ㝔⏕ ᳃⏣䚷▱ᮁ䞉䞉䞉 㻝㻝㻥㻝㻢㻚 ⿵ຓຍ⇕ᶵᵓ䜢ഛ䛘䛯䝒䞊䝹䜢⏝䛔䛯㻞㻜㻞㻠䜰䝹䝭䝙䜴䝮ྜ㔠ⷧᯈ䛾ᦶ᧿ᨩᢾ᥋ྜ෸ᩍᤵ๓⏣䚷ᑗඞ䞉䞉䞉 㻝㻞㻝㻝㻣㻚 㠀㕲ᮦᩱ䛾ᦶ᧿ᨩᢾ᥋ྜ䠄㻲㻿㼃䠅䛸 Ἀ⦖ᕤᴗ㧗➼ᑓ㛛 ෸ᩍᤵ⥅ᡭ䛾ᶵ⬟ホ౯Ꮫᰯ䝺䞊䝄䝢䞊䝙䞁䜾䛻䜘䜛㻲㻿㼃⥅ᡭᮦ䛾⑂ປ䛝⿣㐍ᒎᢚไຠᯝ䛾ᨺᑕග䛻䜘䜛᳨ドᨻᮌ䚷ΎᏕ䞉䞉䞉 㻝㻞㻟㻝㻤㻚 㻺㼕㻌㻙㻯㗰䜢⏝䛔䛯ᦶ᧿ᨩᢾ᥋ྜ㻌䛻䜘䜛䜸䞊䝇䝔䝘䜲䝖Ᏻᐃ໬䛸⥅ᡭ䛾ᶵᲔⓗ≉ᛶ䜈䛾ᙳ㡪䛾ㄪᰝ

⚟஭኱Ꮫ

ຓᩍ

୕ᾆ䚷ᣅஓ

䞉䞉䞉 㻝㻞㻡㻝㻥㻚 ᦶ᧿ᨩᢾ᥋ྜ䛻䜘䜚ᚓ䜙䜜䜛୰Ⅳ⣲㗰⥅ᡭ䛾ᶵᲔⓗ≉ᛶ䛻㛵䛩䜛
◊✲

⛅⏣኱Ꮫ

ᩍᤵ
⚄㇂䚷ಟ
෸ᩍᤵ
ᐑ㔝䚷Ὀᚁ
኱Ꮫ㝔⏕ ∾㔝䚷⁞ᖹ䞉䞉䞉 㻝㻞㻣

ㅮᖌ䞉䞉䞉 㻝㻞㻥

᪥ᮏ኱Ꮫ㻞㻜㻚 㻭㻭㻙㼀㻵㻳㻌⁐᥋㒊䛾ᚤ⣽⤌⧊䛻ཬ䜌 㱟㇂኱Ꮫ䛩ᦶ᧿ᨩᢾ䝥䝻䝉䝇䛾ᙳ㡪

᳃䚷ṇ࿴

䠘Ꮫෆ䠚
㻝䠊 䃑ᆺ㼀㼕㻙㻹㼚⣔ྜ㔠䛾ᦶ᧿ᨩᢾ᥋ྜ ኱Ꮫ㝔ᕤᏛ◊✲⛉ ຓᩍ䝥䝻䝉䝇䛾㛤Ⓨ㻌㻌䞉䞉䞉 㻝㻝㻡

㻌㻌㻌

− vii −

㉿䚷◊䛆」ྜ໬ᶵᵓᏛศ㔝䛇䞉䞉䞉 㻝㻟㻝

ᩍᤵ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

ᕝᓮ䚷ு
኱ᕝ䚷⯗ᖹ
ຍ⸨䚷ඃ඾
Ꮮ䚷ᑠῂ
㥁䚷ᬡ㭉
ⓒ℩䚷ᶞ

㻞䠊 ⢊ᮎ෬㔠ἲ䛷స〇䛧䛯㻯㼍㻻⢏Ꮚศ ᪥ᮏ኱Ꮫᩓᙉ໬䝬䜾䝛䝅䜴䝮ᇶ」ྜᮦᩱ䛾≉ᛶᩍᤵஂಖ⏣䚷ṇᗈ 䞉䞉䞉 㻝㻟㻠㻟䠊 䝦䝔䝻⤌⧊䛻㉳ᅉ䛩䜛ᚤ㔞ඖ⣲⃰໬䛻䜘䜛䝏䝍䞁↝⤖ᮦ䛾⭉㣗ᣲື
䛾ゎ᫂

ᐩᒣ኱Ꮫ

ᩍᤵ
෸ᩍᤵ

◁⏣䚷⪽
␊ᒣ䚷㈼ᙪ

䞉䞉䞉 㻝㻟㻢㻠䠊 ረᛶຍᕤ䜢฼⏝䛧䛯㍍ྜ㔠」ྜᮦ ி㒔኱Ꮫ
ᩱ䛾㛤Ⓨ䛸≉ᛶゎᯒ✀䚻䛾㈇Ⲵ⤒㊰䛻䛚䛡䜛䝬䜾䝛䝅䜴䝮ྜ㔠ᅽᘏᯈ䛾䜂䛪䜏ᣲື

෸ᩍᤵ

὾䚷Ꮥஅ

䞉䞉䞉 㻝㻟㻤㻡䠊 䜹䞊䝪䞁䝘䝜䝏䝳䞊䝤䛾༢ศᩓ໬䛻䜘䜛㔠ᒓ⾲㠃䛾ᶵ⬟໬

≉௵ᩍᤵ

ྂ᭶䚷ᩥᚿ

䞉䞉䞉 㻝㻠㻜Ỉෆ䚷₩䞉䞉䞉 㻝㻠㻞㻝䠊 䜾䝷䝣䜵䞁㻛㔠ᒓ㓟໬≀䝘䝜」ྜᮦ
ᩱ䛻㛵䛩䜛◊✲

ᮾ໭኱Ꮫ

ᮾி኱Ꮫ

㻢䠊 㻿㻼㻿㻌ᡂᙧ䛧䛯㻭㼘㻛㼏㻮㻺㻌」ྜᮦᩱ䛾 ኱㜰⏘ᴗᢏ⾡◊✲ ◊✲୺ᖿ⇕ఏᑟ⋡䛻ཬ䜌䛩㼏㻮㻺㻌䛾䝞䜲䝰䞊 ᡤ䝎䝹䛺⢏ᗘศᕸ䛾ᙳ㡪㻣䠊 䝞䜲䜸䝬䝔䝸䜰䝹䜢⏝䛔䛯⏕య⏺
㠃䜈䛾䝘䝜䝇䜿䞊䝹ᨵ㉁䛸⏕≀Ꮫ
ⓗ≉ᛶホ౯

໭ᾏ㐨኱Ꮫ

䞉䞉䞉 㻝㻠㻥
ㅮᖌᐑ἞㻌㻌⿱ྐ་ဨす⏣㻌㻌⤮฼㤶኱Ꮫ㝔⏕ ⶔ䚷ెዉᏊ䠘Ꮫෆ䠚኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵ
ຓᩍ
ㅮᖌ

㉥ᯇ䚷ྐග
୰ሯ䚷グ❶㻌ᯘ䚷₶㻞䠊 ㉸㧗⢭⣽⾲㠃ᛶ≧ศᯒ䛻䜘䜛ྂ௦ ኱Ꮫ㝔ᩥᏛ◊✲⛉ ᩍᤵ㟷㖡㙾䛾ᦶ⁛⑞⏕ᡂ㐣⛬䛾ゎ᫂
ຓᩍ

⚟Ọ䚷ఙဢ
୰ஂಖ䚷㎮ኵ㻟䠊 㟁☢䜶䝛䝹䜼䞊ᨭ᥼䝥䝻䝉䝇䜢฼⏝䛧䛯㔠ᒓ䡡༙ᑟయᮦᩱ䛾ᶵ⬟ไᚚ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ஭⸨䚷ᖿኵ㻌㻠䠊 ➨୍ཎ⌮ィ⟬䛻䜘䜛ᅛ⁐ඖ⣲䛾ຊ ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵᏛ≉ᛶ䜈䛾᣺⯙䛔䛸⏺㠃ᵓ㐀䞉⏺
㠃≉ᛶ䛾ゎ᫂ྜྷ▮䚷┿ே㻝䠊 ⇞↝ሙ䛻䛚䛡䜛䜒䜏Ẇ䝅䝸䜹䛾⌫≧໬䛻㛵䛩䜛◊✲㻡䠊 䜰䝰䝹䝣䜯䝇䝅䝸䜹䛾ṑ⛉⏝ᮦᩱ䜈 ኱Ꮫ㝔ṑᏛ◊✲⛉ ᣍ⪸ᩍဨ 㥽㤿䚷࿴ḷᏊ䛾㐺⏝− viii −᥋ྜホ౯◊✲㒊㛛䛆᥋ྜᵓ㐀໬ゎᯒᏛศ㔝䛇
ᩍᤵ
ຓᩍ

㜿㒊䚷ᘯ஽
ྔ㔝䚷⩧

䞉䞉䞉 㻝㻡㻝㻞䠊 ᘓ㐀䛛䜙ရ㉁䞉Ᏻ඲ᛶ䞉ᑑ࿨䜎䛷ホ ᮾி⌮⛉኱Ꮫ౯ྍ⬟䛺ᅄḟඖྍど໬㻯㻭㻱䝅䝇䝔
䝮䛾㛤Ⓨ

ᩍᤵ
ຓᩍ

ᒸ⏣䚷⿱
㐟బ㻌㻌Ὀ⣖

䞉䞉䞉 㻝㻡㻢㻟䠊 㻌䝺䞊䝄䞊⁐᥋䛻䜘䜛䝉䝷䝭䝑䜽䠉㔠ᒓᮦᩱ䛾᥋ྜ䛻㛵䛩䜛◊✲㛤Ⓨ

ᩍᤵ
෸ᩍᤵ
ຓᩍ
Ꮫ⾡◊✲
ဨ
Ꮫ⾡◊✲
ဨ

ᓊᮏ䚷ᘯ❧
ᮔ䚷ᓧ⚽
୰㔛䚷┤ྐ
ᮅ಴䚷ຬ㈗

䞉䞉䞉 㻝㻡㻤ຓᩍ⏣୰䚷ᬛ⾜㻝䠊 ᰾⼥ྜ⅔ᵓ㐀ᮦᩱ䛾⥅ᡭᚤ⣽⤌
⧊ホ౯

ᮾி኱Ꮫ

ᐊ⹒ᕤᴗ኱Ꮫ㻠䠊 ᘓ㐀䛛䜙ရ㉁䞉Ᏻ඲ᛶ䞉ᑑ࿨䜎䛷ホ ᗈᓥ኱Ꮫ౯ྍ⬟䛺ᅄḟඖྍど໬㻯㻭㻱䝅䝇䝔䝮䛾㛤Ⓨ㻙㻌㼄㻙㻲㻱㻹㻌䜢⏝䛔䛯෇⟄⥅ᡭ䛾⑂ປᙉᗘゎᯒ䛻㛵䛩䜛◊✲㻌㻙⚄⏣䚷༓ᬛ䞉䞉䞉 㻝㻢㻜䠘Ꮫෆ䠚㻝䠊 పᨺᑕ໬䝣䜵䝷䜲䝖㗰䛸䜸䞊䝇䝔䝘䜲䝖⣔䝇䝔䞁䝺䝇㗰䛾␗ᮦ䝺䞊䝄⁐᥋䛻㛵䛩䜛ᇶ♏ⓗ᳨ウ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ᳃䚷⿱❶㻞䠊 ⁐᥋㒊䛾ᚤど⤌⧊ᙧែ䛾䝎䜲䝺䜽䝖䝰䝕䝸䞁䜾ᡭἲ䛻㛵䛩䜛᳨ウ኱Ꮫ㝔ᕤᏛ◊✲⛉ ຓᩍ୕ୖ䚷Ḡᕼ㻌

䛆᥋ྜᵓ㐀໬ホ౯Ꮫศ㔝䛇㻝䠊 ⤖ᬗ⢏ෆᚤど䛝⿣ヨ㦂∦䜢⏝䛔䛯 ᮾி኱Ꮫᮦᩱ䛾䝭䜽䝻◚ቯ㠌ᛶホ౯

ㅮᖌ
ᰘ἟䚷୍ᶞ
኱Ꮫ㝔⏕ 㐓ぢ䚷ᣅᘯ኱Ꮫ㝔⏕ ᰗᮏ䚷ྐᩍ䞉䞉䞉 㻝㻢㻞㻞䠊 ⅆ⅏䜢ཷ䛡䛯ᶫᱱ㒊ᮦ䛾㠌ᛶホ౯ ྡྂᒇ኱Ꮫ
䛻䛚䛡䜛䝃䝤䝃䜲䝈ヨ㦂∦䛾㐺⏝෸ᩍᤵ䞉䞉䞉 㻝㻢㻠

ᘅ⏿䚷ᖿே

䠘Ꮫෆ䠚
㻝䠊 ᘏᛶ䛝⿣㐍ᒎᚋ䛾⬤ᛶ◚ቯ≉ᛶヨ㦂኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵ኱⏿䚷඘኱Ꮫ㝔⏕ 㕥ᮌ䚷♩ኈ㻞䠊 ஧┦㗰䛾⤌⧊≉ᛶ䜢⤌䜏ධ䜜䛯ᘏᛶᦆയホ౯ᡭἲ䛾ᵓ⠏኱Ꮫ㝔ᕤᏛ◊✲⛉ ≉௵◊✲ ᗉྖ䚷༤ேဨ㻟䠊 ᘏᛶᦆയᩘ⌮䝰䝕䝹䜢⏝䛔䛯ணṍ ኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ ᑠ㎷䚷ᡂ⨾ᮦ䛾ᘏᛶ䛝⿣Ⓨ⏕䞉㐍ᒎ᢬ᢠணᡭἲ

− ix −㻠䠊 ΰྜ䝰䞊䝗ୗ䛷䛾⬤ᛶ◚ቯ≉ᛶヨ ኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ ΎỈ䚷୓┿㦂䛸◚ቯ䝰䝕䝸䞁䜾㻡䠊 㧗㻺㼕ప ⏝㗰⁐᥋㔠ᒓ䛾㠌ᛶᨵၿ䛾䛯䜑䛾⁐᥋㒊䝬䜽䝻≉ᛶไᚚ኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ 㧗ᒸ䚷ຬ௓㻢䠊 ᚤᑠヨ㦂∦䜢⏝䛔䛯⁐᥋㒊ᒁᡤ㡿ᇦ䛾◚ቯ㠌ᛶホ౯ᡭἲ䛾㛤Ⓨ኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ 㧗ᶫ䚷‽ஓ㻣䠊 䜈䛝㛤◚ቯ㝈⏺䛾⤌⧊౫Ꮡᛶண
䛾䛯䜑䛾◚ቯ䝰䝕䝸䞁䜾኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ 㧗ᶫ䚷Ⰻ㍜㻤䠊 㧗ᅽ䜺䝇䝟䜲䝥䝷䜲䞁䛾୙Ᏻᐃᘏᛶ◚ቯ䝅䝭䝳䝺䞊䝅䝵䞁ἲ䛾ᵓ⠏኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ ከ㇂䚷኱㍜㻥䠊 ஧┦⤌⧊㗰䛾ᘏᛶᦆയホ౯኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕᪥㔝䚷៞୍㻝㻜䠊 䝺䞊䝄⁐᥋⥅ᡭ䛾㻲㻼㻰ᣲື䛻ཬ䜌 ኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ ᘅ⏣䚷ె䛩ረᛶᣊ᮰䛾ᙳ㡪䛾᳨ウ䛆᥋ྜタィᏛศ㔝䛇㻝䠊 ᢬ᢠ䝇䝫䝑䝖⁐᥋⥅ᡭ䛾᥋ྜᙉᗘ䛻㛵䛩䜛ಙ㢗ᛶホ౯኱㜰ᕤᴗ኱Ꮫ

≉௵ㅮᖌ ఀ⯅⏣䚷᐀៞ 䞉䞉䞉 㻝㻢㻢㻞䠊 䝡䝹䝖㻴ᱱ䜢⏝䛔䛯⌧ሙ⁐᥋ᆺᰕᱱ⁐᥋᥋ྜ㒊䛾ኚᙧ⬟ຊ䛻㛵䛩䜛ᐇ㦂ⓗ◊✲䚷䇷䝃䝤䝬䞊䝆䜰䞊䜽⁐᥋㒊䛾◚ቯ㠌ᛶ䛻䜘䜛ᙳ㡪䇷

ಙᕞ኱Ꮫ

ᩍᤵ
◊✲ဨ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

㻟䠊 ᘓ⠏ᵓ㐀⏝㧗ᙇຊ㗰䜈䛾㧗䜶䝛䝹䜼䞊ᐦᗘ⁐᥋䛾㐺⏝

㏆␥኱Ꮫ

෸ᩍᤵ

ᓮ㔝䚷Ⰻẚ࿅ 䞉䞉䞉 㻝㻣㻝㻠䠊 ᅽᘏᚋ䛾෭༷᮲௳䜢ኚ䛘䛶ఙ䜃ᛶ 㛗ᓮ኱Ꮫ⬟䜢ኚ໬䛥䛫䛯㗰ᮦ䛾⑂ປட⿣ఏ
᧛≉ᛶ䛻㛵䛩䜛◊✲

෸ᩍᤵ

຾⏣䚷㡰୍

㻡䠊 ⧞䜚㏉䛧㍕Ⲵ䜢⤒㦂䛧䛯㗰ᵓ㐀≀䛾ṧᏑ⪏ຊホ౯䛾䛯䜑䛾ᇶ♏ⓗ
᳨ウ

ᮾ໭኱Ꮫ
⟃Ἴ኱Ꮫ

ᩍᤵ
ᑎ⏣㻌㻌㈼஧㑻 䞉䞉䞉 㻝㻣㻤኱Ꮫ㝔⏕ ␒ሙ䚷Ⰻᖹ
ຓᩍ
᪂Ꮿ䚷ຬ୍

㻢䠊 㗰ᗋ∧䝕䝑䜻䝥䝺䞊䝖䞉㼁䝸䝤䞉ᶓ䝸䝤஺ᕪ㒊䛾⡆᫆䛺⑂ປᙉᗘྥୖ

ி㒔኱Ꮫ

ຓᩍ

㻣䠊 ▷᫬㛫⇕ฎ⌮䛻䜘䜛㼀㼕㻙㻢㻭㼘㻙㻠㼂ྜ㔠✚ᒙ㐀ᙧᮦ䛾⑂ປᙉᗘᨵၿ

ி㒔ᕤⱁ⧄⥔኱Ꮫ ෸ᩍᤵ−x−䞉䞉䞉 㻝㻢㻤
㔠Ꮚ䚷ὒᩥ
୰㎸䚷ᛅ⏨
ᑿෆ䚷ᝡྐ
㔠ᓮ䚷ಙኴ㑻
䠪䠣䠱䠵䠡䠪䚷
䠠䠱䠟䠭䠱䠝䠪
䠣኱Ꮫ㝔⏕ ᶫᮏ䚷㟹ᏹ኱Ꮫ㝔⏕ ᇼሙ䚷ுభ኱Ꮫ㝔⏕ ᐑṊ䚷⣧ஓ䞉䞉䞉 㻝㻣㻡ᯇᮏ䚷⌮బ䞉䞉䞉 㻝㻤㻝᳃⏣䚷㎮㑻䞉䞉䞉 㻝㻤㻟䠘Ꮫෆ䠚㻝䠊 ⧞䜚㏉䛧Ⲵ㔜ୗ䛾ᵓ㐀㒊ᮦ䛾ᗙᒅ䞉ረᛶᔂቯᣲື䛻㛵䛩䜛◊✲኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵ⸨ஂಖ䚷ᫀᙪ
኱Ꮫ㝔⏕ ᐊ䚷ᑦோ㻞䠊 䛝⿣Ⓨ⏕䞉㐍ᒎ䝅䝭䝳䝺䞊䝅䝵䞁ᢏ⾡䛾ㄪᰝ䛸᪂ᡭἲ᳨ウ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵ㻟䠊 ᪂䛧䛔䝺䞊䝄䝢䞊䝙䞁䜾ᢏ⾡䛾㛤Ⓨ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵబ㔝䚷ᬛ୍኱Ꮫ㝔⏕ ャᮧ䚷ᔞஅ኱Ꮫ㝔⏕ ᕝᔱ䚷ගᑗ㻠䠊 ᵓ㐀㒊ᮦ䛚䜘䜃᥋ྜ㒊䛾ಙ㢗ᛶホ౯㻌䚷⧞䜚㏉䛧Ⲵ㔜ୗ䛾ᵓ㐀㒊ᮦ䛾ᗙᒅ䞉ረᛶᔂቯᣲື䛻㛵䛩䜛◊኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ ᳃ୗ䚷᫭ḟ䛆ಙ㢗ᛶホ౯䞉ணᮃ᭶䚷ṇே㻌

䝅䝇䝔䝮Ꮫศ㔝䛇㻝䠊 㕲㗰ᮦᩱ⁐᥋㒊䛾⤌⧊ᙧᡂ䛸Ỉ⣲ 㛵す኱Ꮫ
䛾ᒁᅾ໬

ᩍᤵ

᫓ྡ䚷໶

䠘Ꮫෆ䠚
㻝䠊 䝇䝺䞁䝺䝇㗰䛾㧗 ๭䜜ឤཷᛶホ౯኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵᡯ⏣䚷୍ᖾ㻞䠊 పᨺᑕ໬䝣䜵䝷䜲䝖㗰ከᒙ┒⁐᥋᫬䛾㧗 ๭䜜ឤཷᛶ䛻ཬ䜌䛩⇕䝃䜲䜽䝹䛾ᙳ㡪኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ᳃䚷⿱❶− xi −

䞉䞉䞉 㻝㻤㻡

䝇䝬䞊䝖䝥䝻䝉䝇◊✲䝉䞁䝍䞊䛆䝇䝬䞊䝖䝁䞊䝔䜱䞁䜾䝥䝻䝉䝇Ꮫศ㔝䛇㻝䠊 」ྜᮦᩱ䛾⇕≀ᛶホ౯⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲ 㜿Ꮚᓥ䚷䜑䛠䜏 䞉䞉䞉 㻝㻤㻣ᡤဨ㻞䠊 ከᏍ㉁ᮦᩱ䛾⇕≀ᛶホ౯⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲ 㜿㒊䚷㝧㤶ᡤဨ䞉䞉䞉 㻝㻤㻥㻟䠊 ᚤ⢏Ꮚ䠈䝘䝜⢏Ꮚ䛾ᵓ㐀ไᚚ䛸≉ᛶホ౯㉸ప⇕ఏᑟᮦᩱ䛾⇕≀ᛶホ౯࿴ḷᒣᕤᴗ㧗➼ᑓ ෸ᩍᤵ
㛛Ꮫᰯ

኱ᮧ䚷㧗ᘯ

䞉䞉䞉 㻝㻥㻝

ᮾ໭኱Ꮫ

ຍ⣡䚷⣧ஓ
▼ཎ䚷┿࿃

䞉䞉䞉 䠄㻟䠅䠆㻠䠊 จ㞟⢏Ꮚ䛾ᔂቯ⌧㇟䛾䝅䝭䝳䝺䞊
䝅䝵䞁

ᩍᤵ
ຓᩍ

㻡䠊 㻿㻻㻲㻯⏝ከᏍ㉁㟁ᴟᚤ⢏Ꮚ䛾ྜᡂ 㛵す኱Ꮫ䛸㟁Ẽ໬Ꮫ≉ᛶホ౯䞉䞉䞉 㻝㻥㻠෸ᩍᤵᮌୗ䚷༟ஓ኱Ꮫ㝔⏕ ୸ᮏ䚷♸ኴ㑻኱Ꮫ㝔⏕ ࿴⏣䚷ెஓ㻢䠊 䝁䝻䜲䝗䝥䝻䝉䝇䛻䜘䜛䝘䝜」ྜయ
䛾๰〇

⩌㤿኱Ꮫ

ຓᩍ
బ⸨䚷࿴ዲ
኱Ꮫ㝔⏕ ᒾ⏣䚷༓㭯኱Ꮫ㝔⏕ 䠪䠽䡊䡐䡄䠽䡊䠽䚷䠬䡋䡑䡕䞉䞉䞉 㻝㻥㻢㻣䠊 䝬䜲䜽䝻Ἴᒁᡤຍ⇕䜢⏝䛔䛯㻭㼘㻞㻻㻯ྜᡂ䛸䛭䛾ᛂ⏝ྡྂᒇᕤᴗ኱Ꮫ෸ᩍᤵⓑ஭䚷Ꮥ䞉䞉䞉 㻝㻥㻤

෸ᩍᤵ

㕥ᮌ䚷⩏࿴

䞉䞉䞉 㻞㻜㻜⏣୰䚷ㅍ䞉䞉䞉 㻞㻜㻞㻤䠊 䝘䝜ከᏍయᮦᩱ〇㐀䝥䝻䝉䝇䛻㛵 ⟃Ἴ኱Ꮫ䛩䜛◊✲䠖⮬Ⓨⓗ䝬䜲䜽䝻⌫య໬⌧㇟䜢⏝䛔䛯᪂ወከᏍ㉁⌫≧⢏Ꮚ䛾ྜᡂ㻥䠊 䝉䝷䝭䝑䜽䝇〇㐀䛻䛚䛡䜛ᵓ㐀Ⓨ㐩㐣⛬ゎ᫂䛸䛭䛾ไᚚ㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ ෸ᩍᤵ㻝㻜䠊 ᶵᲔⓗᡭἲ䛻䜘䜛ᮍ฼⏝㈨※䛛䜙 ᪩✄⏣኱Ꮫ䛾㔠ᒓᅇ཰䛻㛵䛩䜛◊✲⢊○⿦⨨䜢⏝䛔䛯㞴ฎ⌮㖔▼䛾༢యศ㞳ಁ㐍䛸㖡䛾ᾐฟಁ㐍᳨ウ

ᩍᤵ
ຓᡭ

ᡤ䚷༓ᬕ
ᯇᒸ䚷ග᫛

䞉䞉䞉 㻞㻜㻠㻝㻝䠊 䝣䝑໬䜰䞁䝰䝙䜴䝮ゐ፹䛻䜘䜛䝘䝜䝅䝸䜹୰✵⢏Ꮚ䛾▷᫬㛫ྜᡂྡྂᒇᕤᴗ኱Ꮫᩍᤵ⸨䚷ṇ╩䞉䞉䞉 㻞㻜㻢㻝㻞䠊 䝸䞁㓟ඵ䜹䝹䝅䜴䝮⏕యάᛶ㦵๓㥑య䛾ከᏍ㉁໬䛻㛵䛩䜛◊✲

ᐩᒣ኱Ꮫ

ᩍᤵ

᳃㻌㻌ⱥ฼

䞉䞉䞉 㻞㻜㻤㻝㻟䠊 ᡂᙧయ䛾୙ᆒ㉁ᵓ㐀ᙧᡂ䛻㛵䛩䜛◊✲ᮾிᕤᴗ኱Ꮫ

෸ᩍᤵᏳ⏣㻌㻌බ୍䚷䞉䞉䞉 㻞㻝㻜㻝㻠䠊 Ỉ⇕䝩䝑䝖䝥䝺䝇䜢⏝䛔䛯⢏Ꮚ㛫᥋ 㧗▱኱Ꮫྜ䛻㛵䛩䜛◊✲ᩍᤵᰗ⃝䚷࿴㐨䞉䞉䞉 㻞㻝㻞㻝㻡䠊 ☢ᛶ⢏Ꮚ䛾␗᪉ᡂ㛗䛸≉␗䛺⢓ᙎ ᐊ⹒ᕤᴗ኱Ꮫ
ᛶ≉ᛶ

෸ᩍᤵ
ᒣ୰䚷┿ஓ
኱Ꮫ㝔⏕ Ώ㑓䚷┬࿃䞉䞉䞉 㻞㻝㻠

− xii −

㻝㻢䠊 ᬗᯒ䛻䜘䜛ᚤ⢏Ꮚ⏕ᡂ䝥䝻䝉䝇䛻䛚䛡䜛ᚤ⤖ᬗ䛾ᵓ㐀ไᚚ䛸≉ᛶホ

ᐩᒣ኱Ꮫ

ຓᩍ

ᒣᮏ䚷㎮⨾

䞉䞉䞉 㻞㻝㻢䠘Ꮫෆ䠚㻝䠊 ⢏Ꮚ」ྜ໬䛻䜘䜛㧗ᛶ⬟⇕㟁ኚ᥮ ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ
ᮦᩱ䛾๰〇

຾ᒣ䚷ⱱ

䛆䝘䝜䞉䝬䜲䜽䝻ᵓ㐀ไᚚ䝥䝻䝉䝇Ꮫศ㔝䛇䞉䞉䞉 䠄㻥䠅䠆㻝䠊 䝃䝇䝨䞁䝅䝵䞁䝥䝷䝈䝬⁐ᑕ᪋ᕤ⪏ ᮾ໭኱Ꮫ⎔ቃ䝁䞊䝔䜱䞁䜾䛾⓶⭷≉ᛶホ౯

ᩍᤵ

ᑠᕝ䚷࿴ὒ

䠆㻞䠊 㟁Ꮚ䝡䞊䝮✚ᒙ㐀ᙧ䛻䛚䛡䜛㔠ᒓᮦᩱ⤌⧊䛾ไᚚ

ᮾ໭኱Ꮫ෸ᩍᤵᑠἨ䚷㞝୍㑻 䞉䞉䞉 䠄㻝㻝䠅䠆㻟䠊 㓟໬䝍䞁䜾䝇䝔䞁⣔Ỉ࿴≀䜢⏝䛔䛯୰ ᆺ⇞ᩱ㟁ụ⏝䝉䝷䝭䝑䜽㟁
ゎ㉁䛾㛤Ⓨᮾி⌮⛉኱Ꮫ෸ᩍᤵ⏣୰䚷ඃᐇ䞉䞉䞉 䠄㻝㻟䠅䠆㻠䠊 ❅⣲ྵ᭷㻯㼛㻙㻯㼞㻙㻹㼛㻌✚ᒙ㐀ᙧయ䛾ᶵᲔⓗᛶ㉁

ᮾ໭኱Ꮫ

෸ᩍᤵ

㔝ᮧ䚷┤அ

䞉䞉䞉 䠄㻝㻡䠅䠆㻡䠊 ᚤ⢏Ꮚ䝨䞊䝇䝖ග㐀ᙧ䛻䜘䜛䝉䝷䝭䝑䜽䝇ᵓ㐀య䛾స〇⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲ ᇼ⏣䚷ᖿ๎ᡤဨ䞉䞉䞉 䠄㻝㻣䠅䠆㻢䠊 ග㐀ᙧἲ䜢⏝䛔䛯㔠ᒓ䛚䜘䜃䝉䝷䝭䝑䜽䝇ᵓ㐀య䛾⮬⏤ᡂᆺ䝬䜲䜽䝻ග㐀ᙧἲ䜢⏝䛔䛯㔠ᒓ䛚䜘䜃䝉䝷䝭䝑䜽䝇〇ᚤ⣽ᵓ㐀䛾ᙧᡂ㤳㒔኱Ꮫᮾி

ຓᩍ䞉䞉䞉 䠄㻝㻥䠅

᪩✄⏣኱Ꮫୖ⣭◊✲ 㰻⸨䚷⨾⣖Ꮚ㻌 䞉䞉䞉 㻞㻝㻤
ဨ

Ჷ᪉䚷⿱୍

䛆䝇䝬䞊䝖䜾䝸䞊䞁䝥䝻䝉䝇Ꮫศ㔝䛇㻝䠊 㟁ᯒἲ䛸㑅ᢥ⁐ゎἲ䜢⏝䛔䛯䝘䝜䝫䞊䝷䝇ᵓ㐀స〇᳨ウ䠘Ꮫෆ䠚㻝䠊 ᚤ⏕≀䞉᳜≀䛻䜘䜛㔠䞉㖟䝘䝜⢏Ꮚ䛾ྜᡂ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ᝷⏣䚷カ㻌኱Ꮫ㝔⏕ ༡ᕝ䚷Ὀ㍤

㻞䠊 ᚤ⏕≀㞟✚⣔䛻䜘䜛Ỉ୰䛛䜙䛾䜰䞁䝏䝰䞁䛾㝖ཤ኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ 㤿ᙧ䚷䛥䜔䛛኱Ꮫ㝔⏕ ᳃䚷೺ኴᮁ− xiii −䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆ᅜ㝿ඹྠ◊✲ㄢ㢟䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆䠘୍⯡බເ◊✲ㄢ㢟䠚䛆䜶䝛䝹䜼䞊ไᚚᏛศ㔝䛇㻝䠊 㻿㼛㼘㼕㼐㻌㼜㼔㼍㼟㼑㻌㼒㼕㼤㼍㼠㼕㼛㼚㻌㼙㼑㼠㼔㼛㼐㻌㼒㼛㼞㻌㼚㼡㼙㼑㼞㼕㼏㼍㼘㻌㼟㼕㼙㼡㼘㼍㼠㼕㼛㼚㻌㼛㼒㻌㼒㼘㼡㼕㼐㻌㼒㼘㼛㼣㻮㼑㼕㼖㼕㼚㼓㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻌㼛㼒㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼥㻞䠊 㻺㼡㼙㼑㼞㼕㼏㼍㼘㻌㼟㼠㼡㼐㼥㻌㼛㼒㻌㼟㼡㼞㼒㼍㼏㼑㻌㼠㼑㼚㼟㼕㼛㼚㻌 㻮㼑㼕㼖㼕㼚㼓㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻌㼍㼚㼐㻌㻹㼍㼞㼍㼚㼓㼛㼚㼕㻌㼟㼔㼑㼍㼞㼛㼒㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼥㻾㼑㼟㼑㼍㼞㼏㼔㼑㼞 㻶㼕㼍㼚㼓㻌㻲㼍㼚䞉䞉䞉 㻞㻞㻝

㻼㼔㻚㻰㻌㼟㼠㼡㼐㼑㼚㼠

㼄㼡㻌㻮㼕㼚䞉䞉䞉 㻞㻞㻠

㻼㼑㼍㼚㼟㼡㼗㼙㼍㼚㼑㼑㻌 䞉䞉䞉 㻞㻞㻣㻿㼛㼙㼜㼛㼞㼚

䛆⁐᥋ᶵᵓᏛศ㔝䛇㻟䠊 㻯㼍㼞㼎㼕㼐㼑㻌㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼦㼍㼠㼕㼛㼚㻌㼕㼚㻌㼀㻥㻝㻌㻴㻭㼆㻷㼕㼚㼓㻌㻹㼛㼚㼓㼗㼡㼠㻓㼟㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻌㼛㼒㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼥㻌㼀㼔㼛㼚㼎㼡㼞㼕

㻸㼑㼏㼠㼡㼞㼑㼞㻠䠊 㻾㼑㼜㼛㼞㼠㻌㼛㼚㻌㻯㼛㼘㼘㼍㼎㼛㼞㼍㼠㼕㼢㼑㻌㻾㼑㼟㼑㼍㼞㼏㼔㻵㼚㼐㼕㼍㼚㻌㻵㼚㼟㼠㼕㼠㼡㼠㼑㻌㼛㼒㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼥㻌㻴㼥㼐㼑㼞㼍㼎㼍㼐㻘㻌㻵㻺㻰㻵㻭㻭㼟㼟㼛㼏㼕㼍㼠㼑㻌 㻿㼔㼍㼞㼙㼍㻌㻭㼎㼔㼍㼥 䞉䞉䞉 㻞㻟㻜㻼㼞㼛㼒㼑㼟㼟㼛㼞䛆᥋ྜ⏺㠃ᶵᵓᏛศ㔝䛇㻡䠊 㻰㼕㼟㼟㼕㼙㼕㼘㼍㼞㻌㻲㻿㼃㻌㼎㼑㼠㼣㼑㼑㼚㻌㼙㼍㼓㼚㼑㼟㼕㼡㼙㻌 㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻌㼛㼒㻌㼍㼘㼘㼛㼥㻌㼍㼚㼐㻌㼙㼕㼘㼐㻌㼟㼠㼑㼑㼘㻌㼣㼕㼠㼔㻌㻭㼘㻙㻹㼓㻌㼍㼟㻌 㻹㼍㼘㼍㼥㼍㼜㼛㼣㼑㼞㻌㼍㼐㼐㼕㼠㼕㼢㼑㼟㻿㼑㼚㼕㼛㼞㻌
㻸㼑㼏㼠㼡㼞㼑㼞

㼅㼡㼟㼛㼒㻌㻲㼍㼞㼍㼦㼕㼘㼍 䞉䞉䞉 㻞㻟㻞䛆䝇䝬䞊䝖䝁䞊䝔䜱䞁䜾䝥䝻䝉䝇Ꮫศ㔝䛇㻢䠊 㻲㼍㼎㼞㼕㼏㼍㼠㼕㼛㼚㻌㼛㼒㻌㼚㼍㼚㼛㼏㼍㼞㼎㼛㼚㻛㼍㼘㼡㼙㼕㼚㼡㼙㻌㼏㼛㼙㼜㼛㼟㼕㼠㼑㼟㼠㼔㼞㼛㼡㼓㼔㻌㼟㼙㼍㼞㼠㻌㼜㼛㼣㼐㼑㼞㻌㼜㼞㼛㼏㼑㼟㼟㼕㼚㼓㻿㼔㼍㼚㼓㼔㼍㼕㻌㻵㼚㼟㼠㼕㼠㼡㼠㼑㻌㼛㼒㻌㻯㼑㼞㼍㼙㼕㼏㼟㻣䠊 㻹㼕㼏㼞㼛㼟㼠㼞㼡㼏㼠㼡㼞㼑㻌㼠㼍㼕㼘㼛㼞㼕㼚㼓㻌㼍㼚㼐㻌㻿㼔㼍㼚㼓㼔㼍㼕㻌㻵㼚㼟㼠㼕㼠㼡㼠㼑㻌㼜㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㼏㼛㼚㼠㼞㼛㼘㻌㼛㼒㻌㻼㼛㼞㼛㼡㼟㻌㼛㼒㻌㻯㼑㼞㼍㼙㼕㼏㼟㻯㼍㼠㼔㼛㼐㼑㻌㼒㼛㼞㻌㻸㼕㼠㼔㼕㼡㼙㻙㻵㼛㼚㻌㻮㼍㼠㼠㼑㼞㼕㼑㼟㻌㼎㼥㻌㼓㼑㼘㻙㼠㼍㼜㼑㻙㼏㼍㼟㼠㼕㼚㼓㻌㼙㼑㼠㼔㼛㼐− xiv −

㻼㼞㼛㼒㼑㼟㼟㼛㼞 㻲㼍㼚䚷㻳㼑㼚㼘㼕㼍㼚㻭㼟㼟㼕㼟㼠㼍㼚㼠㻌 㻸㼕䚷㼆㼔㼕㼝㼕㼍㼚㼓㻾㼑㼟㼑㼍㼞㼏㼔㼑㼞䞉䞉䞉 㻞㻟㻠

㻾㼑㼟㼑㼍㼞㼏㼔㼑㼞 㼆㼔㼍㼚㼓㻌䞉䞉䞉 㻞㻟㻤

㻶㼕㼚㼓㼤㼕㼍㼚

ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䞉◊✲ሗ࿌᭩㻌䠄ᚤ⢏Ꮚ䜢฼⏝䛧䛯⏺㠃᥋ྜไᚚ䛻ᇶ䛵䛟䝇䝬䞊䝖᥋ྜᢏ⾡䛾㛤ᣅ䠅㻌䛆◊✲┠ⓗ䛇
ᮏ◊✲ㄢ㢟ࡣࠊࢼࣀ⢏Ꮚࢆྵࡴᚤ⢏Ꮚࡢ⏺㠃ᵓ㐀ࡸྛ┦㸦ᅛ┦࣭ᾮ┦࣭Ẽ┦㸧࡟࠾ࡅࡿศᩓ≧ែࡢไᚚ࡟ᇶ࡙࠸࡚ࠊ᪂ࡋ࠸ࢫ࣐࣮ࢺ᥋ྜᢏ⾡ࡢ㛤ᣅࢆ┠ᣦࡍࠋ౛࠼ࡤࠊࡸࡶࡾࡢ㊊㸦ẟ≧⢏Ꮚࡢ㞟✚㸧࡟ぢࡽࢀࡿࡼ࠺࡞᥋ྜ࡜ศ㞳ࢆྍ⬟࡟ࡍࡿ⢏Ꮚ⏺㠃ࡸࡑࡢ㞟ྜᵓ㐀ࡢ᥈⣴ࠊࡉࡽ࡟ࡣእ㒊่⃭࡟ࡼࡗ࡚᥋ྜᙉᗘࢆྍኚ࡟
ไᚚ࡛ࡁࡿ᥋ྜᮦᩱ㸦౛㸸☢ᛶ⢏Ꮚศᩓ⣔ࡢᶵ⬟ᛶὶయ㸧ࡢ㛤Ⓨ࡞࡝ࡀᣲࡆࡽࢀ
ࡿࠋᮏ◊✲ㄢ㢟࡛ᚓࡽࢀࡿᡂᯝࡣࠊᖖ

ࡸྍ㏫࡞᥋ྜ⛉Ꮫࡢᵓ⠏࡟ࡶᐤ୚ࡍࡿࡶ

ࡢ࡜ᮇᚅࡉࢀࡿࠋ䛆ᡂᯝᴫせ䛇㻌 ᮏᖺᗘ䛿䚸๓ᖺᗘ䛻ᘬ䛝⥆䛝䚸㛵㐃ศ㔝䛻䛚䛡䜛◊✲ືྥ䛾ㄪᰝ䜢⾜䛖䛸䛸䜒䛻䚸ᙺ๭ศᢸᆺ䛸䛧䛶䛾ඹྠ◊✲䜢᥎㐍䛧䛯䚹๓⪅䛻㛵䛧䛶䛿䚸ᮏ㔜Ⅼㄢ㢟䛻ཧຍ䛧䛶䛔䜛◊✲⪅䜢୰ᚰ䛻᝟ሗ஺᥮䛾䛯䜑䛾䝉䝭䝘䞊䜢 2016 ᖺ 5 ᭶ 31 ᪥䛻㛤ദ䛧䛯䚹䛭䛾୰䛷䚸እ㒊่⃭䛻䜘䛳䛶᥋ྜᙉᗘ䜢ྍኚ䛻ไᚚ䛷䛝䜛᥋ྜᮦᩱ䛾◊✲䛺䛹䛻㛵䛩䜛◊✲ウㄽ䜢ᐇ᪋䛧䛯䚹㻌 䜎䛯䚸⏕≀䛻Ꮫ䜆᥋ྜ䞉ศ㞳ᶵᵓ䛾◊✲䛻䛚䛔䛶䛿䚸䛣䜜䜙䛾◊✲䜢㐍䜑䜛ୖ䛷ᇶ┙䛸䛺䜛ホ౯ᢏ⾡䛾᳨ウ䜢⾜䛳䛯䚹ලయⓗ䛺◊✲ᑐ㇟䛸䛧䛶䛿䚸ᵝ䚻䛺䝖䝷䝤䝹䛾ཎᅉ䛸䛺䜛䜹䝡䛾ቑṪ䜢⏕≀䛾௜╔⌧㇟䛾䝰䝕䝹౛䛸䛧䛶㑅ᐃ䛧䚸䛭䛾ቑṪ䜢㜵Ṇ䠄ศ㞳䜢ಁ㐍䠅䛩䜛䛯䜑䛾ᮦᩱ⾲㠃≉ᛶ䛾ホ౯ᢏ⾡䛸䛧䛶䚸ཎᏊ㛫ຊ㢧ᚤ㙾(AFM)䜢ᑟධ䛧䛯䚹䛭䛾⤖ᯝ䚸AFM 䛻䜘䜛䜹䝡⬊Ꮚ䇷ᇶᯈ㛫䛻స⏝䛩䜛௜╔ຊ ᐃ䛻䜘䛳䛶䚸䜹䝡䛾ቑṪ䜢ᢚ䛘䜛ᮦᩱ⾲㠃タィ䛜ྍ⬟䛺䛣䛸䜢᫂䜙䛛䛻䛧䛯䚹㻌 䛥䜙䛻䚸ຍ⇕䜢ᚲせ䛸䛧䛺䛔᪂᥋ྜᢏ⾡䛸䛧䛶䚸䜶䜰䝻䝌䝹䝕䝫䝆䝅䝵䞁ἲ䛻䜘䜛ᅛయ㟁ゎ㉁ⷧ⭷䛾ᖖస〇䛾◊✲䜔䚸㠀ຍ⇕ᶵᲔⓗᡭἲ䛻䜘䜛ᚤ⢏Ꮚ㛫᥋ྜ䜢฼⏝䛧䛯」ྜ⢏Ꮚ䛾స〇䛸䛭䛾ᛂ⏝䛻㛵䛩䜛◊✲䜢ᐇ᪋䛧䚸䛣䜜䜙䛾ᢏ⾡䛾ᛂ⏝䛾ྍ⬟ᛶ䜢᳨ウ䛧䛯䚹
㻌㻌࢚࢔ࣟࢰࣝࢹ࣏ࢪࢩࣙࣥἲࢆ⏝࠸ࡓᅛయ㟁ゎ㉁ⷧ⭷ࡢᖖస〇ྡྂᒇ኱Ꮫ ᮦᩱࢹࢨ࢖ࣥᕤᏛᑓᨷධᒣ  ᜤᑑ

1. ⥴ ゝᑠᆺᦠᖏᶵჾࡸ㟁Ẽ⮬ື㌴࡞࡝ࡢ㟁※࡜ࡋ࡚ࣜࢳ࣒࢘࢖࢜ࣥ㟁ụࡀᬑཬࡋ࡚࠸ࡿࠋࣜࢳ࣒࢘࢖࢜ࣥ㟁ụࡢ཯ᛂᶍᘧᅗࢆ Fig. 1 ࡟♧ࡍࠋࡇࡇ࡛ࡣṇᴟ࡟ LiCoO2ࠊ㈇ᴟ࡟ࢢࣛࣇ࢓࢖ࢺࢆ⏝࠸ࡓ௦⾲ⓗ࡞౛ࢆ♧ࡋ࡚࠸ࡿࠋ
ࣜࢳ࣒࢘࢖࢜ࣥ㟁ụࡣࡇࢀࡽ㟁ᴟά≀㉁࡬ࡢࣜࢳ࣒࢘࢖࢜ࣥࡢᤄධ⬺㞳཯ᛂࢆ฼⏝ࡋ࡚࠾ࡾࠊ඘㟁࣭ᨺ㟁ࡢ཯ᛂ࡛ࡣ㟁ゎᾮࢆ௓ࡋࡓṇᴟ㸫㈇ᴟ㛫࡛ࡢࣜࢳ࣒࢘࢖࢜ࣥࡢ⛣ືࡀ㉳ࡇࡿࠋࣜࢳ࣒࢘࢖࢜ࣥ㟁ụࡢసື㟁ᅽ
ࡣ 4V ࡜㧗࠸ࡓࡵࠊ㟁ゎᾮࡢ⁐፹࡟ࡣỈ㸦⌮ㄽศゎ㟁ᅽ㸸1.23V㸧ࢆ⏝࠸ࡿࡇ࡜ࡀ࡛ࡁࡎࠊ௦ࢃࡾ࡟᭷ᶵ⁐፹ࡀ୍⯡࡟⏝࠸ࡽࢀࡿࠋ࡞࠾ࠊLi 㔠ᒓ㈇ᴟࡣ౑ࢃࢀ࡚࠸࡞࠸ࠋ඘ᨺ㟁࡟ࡼࡿ Li 㔠ᒓࡢᯒฟ⁐ゎ࡟క࠺ࢹࣥࢻࣛ
࢖ࢺᡂ㛗࡟ㄢ㢟ࡀ࠶ࡿࠋ ࣜࢳ࣒࢘࢖࢜ࣥ㟁ụࢆ෽㥙ࡍࡿ㧗࢚ࢿࣝࢠ࣮ᐦᗘࢆࡶࡘḟୡ௦㟁ụࡢ◊✲㛤ⓎࡀάⓎ࡟㐍ࡵࡽࢀ࡚࠾ࡾࠊ
඲ᅛయࣜࢳ࣒࢘஧ḟ㟁ụࡣࡑࡢೃ⿵ࡢ୍ࡘ࡛࠶ࡿࠋ඲ᅛయࣜࢳ࣒࢘஧ḟ㟁ụࡣࠊFig. 1 ࡟࠾ࡅࡿ᭷ᶵ㟁ゎᾮࢆ↓ᶵᅛయ㟁ゎ㉁࡟⨨ࡁ᥮࠼ࡓ㟁ụ࡛࠶ࡿࠋ㟁ụࡢ࢚ࢿࣝࢠ࣮ᐦᗘࡢᣦᶆࡢ୍ࡘ࡜ࡋ࡚ Wh/kg㸦㔜㔞࢚ࢿࣝࢠ࣮ᐦᗘ㸧ࡀ⏝࠸ࡽࢀࡿࡀࠊWh/kg㸻Vu Ah/Kg ࡛࠶ࡿࡇ࡜ࢆ⪃࠼ࡿ࡜ࠊᴟࡵ࡚༢⣧࡟ࡣ㟁ụࡢసື㟁ᅽ㸦V㸧ࡢྥୖࠊ㟁ᴟᐜ㔞㸦Ah/Kg㸧ࡢ㧗࠸ᮦᩱࡢ฼⏝ࡀ࢚ࢿࣝࢠ࣮ᐦᗘࡢቑ኱࡟᭷⏝࡜⪃࠼ࡽࢀࡿࠋᅛయ㟁ゎ㉁ࡣ
୍⯡࡟⪏㓟໬ᛶ࡟ඃࢀࠊࡇࢀࡣ͆V͇ࡢྥୖ࡟᭷฼࡛࠶ࡿࠋࡲࡓࠊᅛయ㟁ゎ㉁ࡀࢹࣥࢻࣛ࢖ࢺᡂ㛗ࢆ㜵Ṇࡍࡿ㝸ቨ࡜ࡋ࡚ᶵ⬟ࡍࡿࡓࡵࠊ㧗ᐜ㔞㈇ᴟᮦᩱ࡛࠶ࡿ Li 㔠ᒓ㸦㹼3860 Ah/kg㸧ࢆ฼⏝ࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡾࠊ
ࡇࢀࡣ͆Ah/kg͇ࡢྥୖ࡟᭷฼࡛࠶ࡿࠋ᭦࡟ࠊ
࣭Ᏻ඲ᛶࡢྥୖ㸦᭷ᶵ㟁ゎᾮࡣྍ⇞ᛶࠊᅛయ㟁ゎ㉁ࡣ୙⇞ᛶ㸧࣭㛗ᑑ࿨໬㸦๪཯ᛂ㸦㟁ᴟࡢ⁐ฟࠊ㟁ゎᾮࡢศゎ➼㸧ࡢ㜵Ṇ㸧࣭ᾮ₃ࢀࡢゎᾘ㸦㟁ụࡢ⡆⣲໬㸧࡞࡝ࠊ㟁ụࡢ㧗࢚ࢿࣝࢠ࣮ᐦᗘ໬࡟ຍ࠼࡚Ᏻ඲ᛶ࣭ᑑ࿨࣭ಙ㢗ᛶࡢྥୖ➼ࡶᮇᚅ࡛ࡁࡿࠋ
Li 㔠ᒓ࡟Ᏻᐃ࡞ᅛయ㟁ゎ㉁࡜ࡋ࡚ࣜࣥ㓟ࣜࢳ࣒࢘࢜࢟ࢩࢩࢼ࢖ࢺࣛ࢖ࢻ࢞ࣛࢫ㟁ゎ㉁㸦Li-P-O-N㸸LiPON㸧ࠊ
ࣚ࢘໬ࣜࢳ࣒࢘㸦LiI㸧ࠊLi7La3Zr2O12㸦LLZ㸧➼ࡀ▱ࡽࢀ࡚࠸ࡿࠋࡇࡢ୰࡛ࠊ᭱ࡶ࢖࢜ࣥఏᑟ⋡ࡀ㧗࠸ࡢࡀ LLZ࡛࠶ࡾࠊᐊ ࡛ 1x10-3 S cm-1 ࡢఏᑟ⋡࡟฿㐩ࡍࡿᮦᩱࡶሗ࿌ࡉࢀࡿࡼ࠺࡟࡞ࡗ࡚ࡁࡓࠋࡇࡢ LLZ ࢆ↝ᡂࡍࡿ ᗘࡣࠊᙜึࡢሗ࿌࡛ࡣ 1000Υࢆ㉸࠼࡚࠸ࡓࠋ
᭱㏆࡛ࡣฟⓎ≀㉁ࢆኚ࠼ࡿࡇ࡜࡛ప ୗࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋ
LLZ ࡢ࣌ࣞࢵࢺ≧ࡸࢩ࣮ࢺ≧࡟ᩚᙧࡋࡓᮦᩱࡶ㛤Ⓨࡉࢀࡿࡼ࠺࡟࡞ࡗ࡚ࡁࡓࡀࠊࡇࢀࢆሬᕤࡍࡿࡇ࡜ࡀ࡛ࡁ
ࡿ࡜㟁ụࢆ኱ᆺ໬ࡍࡿ㝿࡟᭷฼࡞ࣉࣟࢭࢫ࡜⪃࠼ࡽࢀࡿࠋࡑࡇ࡛ὀ┠ࡉࢀࡿࣉࣟࢭࢫࡢ୍ࡘࡀࠊᖖ ࡛ࡶ⦓ᐦ࡞ࢭ࣑ࣛࢵࢡࢫ⭷ࢆస〇࡛ࡁࡿ࢚࢔ࣟࢰࣝࢹ࣏ࢪࢩࣙࣥ㸦AD㸧ἲ࡛࠶ࡿࠋAD ἲࡣฟⓎ⢊యࢆᅛయࡢࡲࡲᖖ ࡛ᇶᯈ࡟⾪✺ࡉࡏ࡚ᡂ⭷࡛ࡁࡿ≉ᚩࢆࡶࡘ[2]ࠋ⦓ᐦ࡞ࢭ࣑ࣛࢵࢡࢫ⭷ࢆᖖ ᡂ⭷ࡍࡿᡭἲ࡜ࡋ࡚≉࡟ὀ┠ࡉࢀࠊ㟁ụᮦᩱ࡬ࡢᛂ⏝౛ࡶ᪤࡟࠸ࡃࡘ࠿ࡢሗ࿌ࡀ࠶ࡿ[6-8]ࠋ
 ᮏ◊✲࡛ࡣࠊࡇࡢ AD ἲࢆ⏝࠸࡚ LLZ ⭷ࡢస〇ࢆ᳨ウࡋࡓࠋ

Fig. 1㸦ᕥ㸧LiB ࡢ඘ᨺ㟁཯ᛂࡢᶍᘧᅗࠋ㸦ྑ㸧ᾮయ㟁ゎ㉁࡜ᅛయ㟁ゎ㉁ࠋ

−1−

2. ᐇ㦂࠾ࡼࡧᐇ㦂᪉ἲ ㇏ᓥ〇సᡤ࠿ࡽᖹᆒ⢏ᚄ 2ȝm ࡢ❧᪉ᬗ LLZ ⢏Ꮚࢆ㉎ධࡋࠊࡇࢀࢆฟ
Ⓨཎᩱ࡜ࡋ࡚⏝࠸ࡓࠋࡲࡓࠊࡇࡢ⢊యࢆ 400ΥࠊΥ࡛ຍ⇕ࡋࡓ⢊యࡶ࠶ࢃࡏ࡚స〇ࡋࡓࠋస〇ࡋࡓ⢊యࢆ $' ᡂ⭷⿦⨨࡟ࢭࢵࢺࡋࠊ࢔ࣝࢦࣥ࢞ࢫࢆ⏝࠸࡚ᡂ⭷ᐊ࡟ //= ⢊యࢆᦙ㏦ࡋࡓࠋᇶᯈ࡟ࡣࠊ6L ࢚࢘ࣁ࣮ᇶᯈࢆ⏝࠸ࡓࠋᚓࡽࢀ
ࡓⷧ⭷ࡢගᏛ෗┿ほᐹࠊ6(0 ほᐹࠊ('; ィ ࠊ;5' ᐃࢆ⾜࠸ࠊ//= ⷧ⭷ࡢᡂ⭷≧ែࢆㄪ࡭ࡓࠋ
3. ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ
㻌 Fig. 2 䛻䚸↝ᡂ䛺䛧䚸400䉝↝ᡂ䚸600䉝↝ᡂ䜢⾜䛳䛯 LLZ ⢊య䜢⏝䛔䛶స〇䛧䛯ⷧ⭷䛾⾲㠃 SEM ീ䜢♧䛩䚹䜎䛯䚸䛭䜜䛮䜜䛾ෆᤄᅗ䛻䛿䚸ᡂ⭷య䛾ගᏛ෗┿䜢♧䛧䛶䛔䜛䚹↝ᡂ䛧䛶䛔䛺䛔⢊య䜢⏝䛔䜛䛸⾲㠃䛻จ㞟㒊ศ䛜ㄆ䜑䜙䜜䜛䛜䚸↝ᡂ䛧䛯⢊య䜢⏝䛔䜛䛸䚸䛣䛖䛧䛯จ㞟䛜ㄆ䜑䜙䜜䛺䛟䛺䜚䚸ẚ㍑ⓗᖹ⁥䛺ᡂ⭷య䛜ᚓ䜙䜜䜛䛣䛸䛜䜟䛛䛳䛯䚹୍᪉䚸䛣䜜䜙䛾ⷧ⭷䛾⭷ཌ䜢᩿㠃 SEM ീ䜢ィ 䛧䛯⤖ᯝ䚸↝ᡂ䛺䛧䛾ヨᩱ䛜 5䃛m䚸400䉝↝ᡂ䛾ヨᩱ䛜 2䃛m䚸600䉝↝ᡂ䛾ヨᩱ䛜1䃛m 䛸䚸↝ᡂ ᗘ䛜ቑ኱䛩䜛䛻䛴䛔䛶⭷ཌ䛜ῶᑡ䛩䜛ഴྥ䛜ㄆ䜑䜙䜜䛯䚹㻌 Fig. 3 䛻䚸స〇䛧䛯ⷧ⭷䛾 XRD 䝟䝍䞊䞁䜢♧䛩䚹ཧ⪃䛾䛯䜑䛻䚸LLZ ⢏Ꮚ⾲㠃䛻ᙧᡂ䛥䜜䜔䛩䛔 Li2CO3 䛾 JCPDS 䝕䞊䝍䜒ే䛫䛶♧䛧䛶䛔䜛䚹ᅗ୰䛾Ⅼ⥺䛷♧䛧䛶䛔䜛䝢䞊䜽䛿❧᪉ᬗ LLZ 䛻ᖐᒓ䛥䜜䜛䝢䞊䜽䛷䛒䜛䛜䚸䛔䛪䜜䛾ⷧ⭷䛛䜙䜒䛭䛾䝢䞊䜽䛜ㄆ䜑䜙䜜䜛䚹䛣䛾⤖ᯝ䛛䜙䚸ᖖ 䛷 LLZ ⷧ⭷䜢 AD ἲ䛷ሬᕤ䛷䛝䜛䛣䛸䛜䜟䛛䛳䛯䚹↝ᡂ ᗘ䛜㧗䛔⢊ᮎ䛷స〇䛧䛯ヨᩱ䜋䛹ᅇᢡᙉᗘ䛜పୗ䛧䛶䛔䜛䛾䛿䚸⭷ཌ䛜ⷧ䛟䛺䜛䛯䜑䛰䛸⪃䛘䜙䜜䜛䚹㻌 600䉝↝ᡂ䛧䛯⢊ᮎ䜢⏝䛔䛶స〇䛧䛯 LLZ ⭷ୖ䛻 Pt 䛾᷸ᆺ㟁ᴟ䜢⵨╔䛧䛶ᐃ䛧䛯䝘䜲䜻䝇䝖䝥䝻䝑䝖䜢 Fig.4 䛻♧䛩䚹୍䛴䛾෇ᘼ䛜᫂☜䛻ㄆ䜑䜙䜜䚸඾ᆺⓗFig. 2 LLZ ⢊ᮎࢆ⏝࠸࡚䛺䝤䝻䝑䜻䞁䜾㟁ᴟ䛾ᣲື䜢♧䛩䛣䛸䛛䜙䚸స〇䛧䛯 LLZ ⭷䛜 Li+ఏᑟᛶ䜢♧䛩
Si ᇶᯈୖ࡟స〇ࡋࡓⷧ⭷ࡢ䛸䛣䛸䛜䜟䛛䛳䛯䚹
SEM ീཬࡧෆᤄᅗࡣࡑࡢ
㻌 LLZ ⢊య䜢↝ᡂ䛩䜛䛸䛔䛖ᴟ䜑䛶༢⣧䛺ฎ⌮䛻䜘䛳䛶䜒䚸䛷䛝䛒䛜䜛 AD ⭷䛾⾲ග Ꮫ ෗ ┿ 㸬 (a) ↝ ᡂ ࡞ ࡋ ࠊ㠃ᙧែ䜔ཌ䜏䛜኱䛝䛟ኚ໬䛩䜛䚹AD ἲ䜢⏝䛔䛶 LLZ ⷧ⭷䜢ᖖ ሬᕤ䛷䛝䜛䛣䛸(b)400Υ↝ᡂ⢊ᮎࠊ(c)600Υ䛿᫂☜䛸䛺䛳䛯䛜䚸䛣䛾ᡂ⭷ཎ⌮䜢ゎ᫂䛩䜛䛯䜑䛻䛿᭦䛻⣔⤫ⓗ䛺⢏Ꮚᮦᩱタ↝ᡂ⢊ᮎィ䛜ᚲせ䛷䛒䜛䚹
㻌㻌㻌㻌     (ඹྠ◊✲ศ㔝: ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫศ㔝)

Fig. 3 LLZ ⢊ᮎࢆ⏝࠸࡚స〇ࡋࡓ AD ⭷ࡢ XRD
ࣃࢱ࣮ࣥ㸬

−2−

Fig. 4 Si ᇶᯈୖ࡟స〇ࡋࡓ LLZ ⭷ࡢୖ࡟Pt ⵨╔⭷ࢆస〇ࡋࡓィ ࡋࡓ Cole-Coleࣉࣟࢵࢺ㸬จ㞟⢏Ꮚࡢᔂቯ⌧㇟ࡢࢩ࣑࣮ࣗࣞࢩࣙࣥ
ᮾ໭኱Ꮫከඖ≀㉁⛉Ꮫ◊✲ᡤ▼ཎ┿࿃㸪ຍ⣡⣧ஓ
1. ◊✲┠ⓗ ࢭ࣑ࣛࢵࢡࢫ〇㐀ࣉࣟࢭࢫ࡟࠾ࡅࡿᡂᆺᕤ⛬ࡣ㸪ࡑࡢᶵ⬟ࢆᕥྑࡍࡿᴟࡵ࡚㔜せ࡞᧯స࡛࠶ࡿ㸬୍⯡࡟ཎᩱ࡜࡞ࡿ⢏Ꮚࡣὶືᛶࢆ㧗ࡵࡿࡓࡵจ㞟⢏Ꮚ࡟ຍᕤࡋ㸪ࡑࢀࢆᅽ⦰ᡂᙧࡉࢀࡿࡀ㸪ᅽ⦰㐣⛬࡛ࡢจ㞟⢏Ꮚࡢᔂቯࡀᴟࡵ࡚㔜せ࡛࠶ࡿࡇ࡜ࡀᣦ᦬ࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪⢏Ꮚࡢᔂቯ㐣⛬ࢆヲ⣽࡟ほᐹࡍࡿࡇ࡜ࡀ㞴ࡋ࠸ࡇ࡜࠿ࡽ㸪จ㞟⢏Ꮚࡢタィἲࡸᅽ⦰ᡂᙧ᧯స᮲௳ࡢタィἲࡣ༑ศ࡟☜❧ࡉࢀ࡚࠸࡞࠸㸬༢⢏Ꮚ㸦࠶ࡿ࠸ࡣ୍ࡘࡢจ㞟⢏Ꮚ㸧ࡢຊᏛⓗ࡞◚○≉ᛶ࠿ࡽ⢏Ꮚ⩌ࡢ◚○≉ᛶࢆணࡍࡿࡇ࡜ࡀ࡛ࡁࢀࡤ㸪⢏Ꮚ≉ᛶ࡟ྜࢃࡏࡓ᭱㐺ᅽ⦰ᡂᙧ᮲௳ࡢタᐃࡀྍ⬟࡟࡞ࡾ㸪ᡂᙧయࡢᙉᗘࡸ࠿ࡉᐦᗘ➼ࡢᐃ㔞ⓗ࡞ண࡟ࡘ࡞ࡀࡿ࡜⪃࠼ࡽࢀࡿ㸬 ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪จ㞟⢏Ꮚࡢᔂቯ⌧㇟ࢆ෌⌧࡛ࡁࡿࢩ࣑࣮ࣗࣞࢩࣙࣥἲࢆᵓ⠏ࡋ㸪ᅽ⦰ᡂᙧ㐣⛬࡛ࡢจ㞟⢏Ꮚࡢᔂቯ㐣⛬ࢆヲ⣽࡟ゎᯒࡍࡿࡇ࡜ࢆヨࡳࡿ㸬⢏Ꮚࡢ◚○ࡸኚᙧࢆ┤᥋⾲⌧ࡍࡿࡓࡵࡢࣔࢹࣝ࡜ࡋ࡚㸪
ADEM(Advanced Distinct Element Method)ࢆᵓ⠏ࡋ㸪༢⢏Ꮚࡢᅽ⦰ヨ㦂࠿ࡽ◚○≉ᛶࢆྲྀᚓࡋ㸪⢏Ꮚ⩌ࢆᅽ⦰ࡋࡓ㝿ࡢ◚○ᣲືࡢゎᯒࢆ⾜ࡗࡓ㸬
2. ༢⢏Ꮚࡢ◚○ࢩ࣑࣮ࣗࣞࢩࣙࣥ 㠀⌫ᙧ⢏Ꮚࡢ⢏Ꮚ㐠ືᣲືࡸ㸪◚○㸪⢊໬ᣲືࢆ⾲⌧ྍ

Table 1 Simulation conditions of compressive test of⬟࡞ࢩ࣑࣮ࣗࣞࢩࣙࣥࣔࢹࣝ࡜ࡋ࡚㸪ADEM ࢆゎᯒ࡟౑⏝

single particle

ࡋࡓ㸬ADEM ࡛ࡣ㸪⌫ᙧࡢᵓᡂ⢏Ꮚࡢ㞟ྜయ࡜ࡋ࡚ࢡࣛࢫ

Primary particle size [mm]1.0ࢱ࣮⢏Ꮚࢆ⾲⌧ࡋ㸪ᵓᡂ⢏Ꮚྠኈࢆ㐃⤖ࣂࢿ࡛᥋⥆ࡍࡿࡇCompressive velocity [mm/min]10࡜࡟ࡼࡾ┦஫స⏝ຊࢆィ⟬ࡍࡿᡭἲ࡛࠶ࡿ㸬እຊ࡟ࡼࡗ࡚

Joint-spring coefficient [N/m]1~10㐃⤖ࣂࢿࡀษ᩿ࡉࢀࡓᚋࡣ㸪ᵓᡂ⢏Ꮚࡣ㞳ᩓయ࡜ࡋ࡚ࡩࡿMaximum strain [-]0.01~0.10ࡲ࠺㸬⢏Ꮚࡸቨࡢ᥋ゐ࡟㛵ࡍࡿຊࡢィ⟬ࡣ㸪㞳ᩓせ⣲ἲ

Number of primary particles [-]410(DEM)࡟ᇶ࡙࠸࡚ィ⟬ࢆ⾜࠺ࡇ࡜࡜ࡋࡓ㸬 ༢⢏Ꮚࡢ◚○≉ᛶࢆᢕᥱࡍࡿࡓࡵ㸪༢⢏Ꮚࡢᅽ⦰ࡢࢩ

㻟㻚㻣㻥㻡
㻠㻚㻠㻞㻣
㻡㻚㻜㻢㻜

㻝

㻜㻚㻜

㻜㻚㻜
㻢

㼓㻌㼏㼛
㼑㼒㼒㼕
㼏㼕㼑㼚

㻜㻚㻜

㼠㻌㻔㻺
㻛㼙㻕

㻞

㻠

㻝㻜

኱ࡦࡎࡳ 0.10 ࡢ࡜ࡁᅽ⦰ᙉᗘࡀ 5 MPa㸪㐃⤖ࣂࢿᐃᩘ 5㻜㻚㻜㻤௒ᅇィ⟬ࢆ⾜ࡗࡓ᮲௳࡛ࡣ㸪㐃⤖ࣂࢿᐃᩘࡀ 10 N/m㸪᭱

㻤

㻜

㻙㻕

㻶㼛㼕㼚 㻜 㻞
㼠㻌㼟㼜
㼞㼕㼚

㻜㻚㻝

㻢

ࡦࡎࡳࡀቑຍࡍࡿ࡯࡝ᅽ⦰ᙉᗘࡀቑຍࡍࡿࡇ࡜ࡀࢃ࠿ࡿ㸬

㻟㻚㻝㻢㻞

㻞

㼕㼚㻌
㻔

Fig.1 ࡟♧ࡍ㸬㐃⤖ࣂࢿᐃᩘࡀቑຍࡍࡿ࡯࡝㸪ࡲࡓ㸪᭱኱

㻞㻚㻡㻟㻜

㼟㼠㼞
㼍

໬ࡉࡏ࡚ࢡࣛࢫࢱ࣮⢏Ꮚࢆ୍㍈ᅽ⦰ࡋࡓ㝿ࡢᅽ⦰ᙉᗘࢆ

㻝㻚㻤㻥㻤

㻟

㼙㻌

ࡳࡢ஧ࡘࡀ▱ࡽࢀ࡚࠸ࡿ㸬ࡇࢀࡽ஧ࡘࡢࣃ࣓࣮ࣛࢱࢆኚ

㻝㻚㻞㻢㻡

㻠

㼤㼕㼙
㼡

㡪ࢆཬࡰࡍࣃ࣓࣮ࣛࢱ࡜ࡋ࡚㸪㐃⤖ࣂࢿᐃᩘ࡜᭱኱ࡦࡎ

㻜㻚㻢㻟㻞㻡

㻹㼍᮲௳ࢆ Table 1 ࡟♧ࡍ㸬ࡇࢀࡲ࡛ࡢ᳨ウ࡛◚○≉ᛶ࡟ᙳ

㻜㻚㻜㻜㻜

㻡

㻠

࡜ࡋ㸪ࢡࣛࢫࢱ࣮⢏Ꮚᚄࢆ 50 mm ࡜ࡋࡓ㸬ࡑࡢ௚ࡢィ⟬㻕㻌㼟㼠㼞㼑㼚㼓㼠㼔㻌㻔㻹㻼㼍㻯㼛㼙㼜㼞㼑㼟㼟㼕㼢㼑࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓ㸬ࢡࣛࢫࢱ࣮⢏Ꮚࡢᙧ≧ࡣ⌫ᙧN/m㸪᭱኱ࡦࡎࡳ 0.10 ࡢ࡜ࡁᅽ⦰ᙉᗘࡀ 3MPa ࡛࠶ࡗࡓ㸬Fig.1 Compressive strength as a function of joint spring௒ᅇࡢ᳨ウ࡛ࡣ㸪ࡇࡢ 2 ࡘࡢ᮲௳࡟࠾࠸࡚⢏Ꮚ⩌ࡢᅽ⦰coefficient and maximum strain.

ヨ㦂ࢆ⾜࠺ࡇ࡜࡜ࡋࡓ㸬㻌

−3−

3. ⢏Ꮚ⩌ࡢᅽ⦰ࢩ࣑࣮ࣗࣞࢩࣙࣥ ༢⢏Ꮚᅽ⦰ヨ㦂࡟ࡼࡾ㸪ᅽ⦰ᙉᗘࡀ᫂ࡽ࠿࡜࡞ࡗ࡚࠸ࡿ

Table 2 Simulation conditions of compressive test ofࢡࣛࢫࢱ࣮⢏Ꮚࢆᚄࡢ␗࡞ࡿ෇⟄ᐜჾ࡟ࡑࢀࡒࢀ඘ሸࡋ㸪

particles in a drum chamberᅽ⦰ࡋࡓ㝿ࡢᣲືࢆゎᯒࡋࡓ㸬ィ⟬᮲௳ࢆ Table 2 ࡟♧ࡍ㸬
Fig.2 ࡟ࡣ㸪ᐜჾᚄ 300 mm ࡟࠾ࡅࡿᅽ⦰๓ᚋࡢᵝᏊࢆ♧ࡍ㸬ᅽ⦰Ⲵ㔜ࡢቑຍ࡟ࡼࡾ㸪⢏Ꮚ⩌ࡢྛᡤ࡛◚○ࡀ㉳ࡁ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬Fig.3 ࡟ྛ᮲௳࡟࠾ࡅࡿ⢊໬⋡࡜ᅽ⦰Ⲵ㔜ࡢ㛵ಀࢆ♧ࡍ㸬ࡇࡇ࡛㸪ࢡࣛࢫࢱ࣮⢏Ꮚࡀ 3 ಶ௨ୗࡢ◚○∦ࢆ⢊࡜ᐃ⩏ࡋ㸪඲యࡢ⢏Ꮚᩘ࡟ᑐࡍࡿ⢊ࡢ⢏Ꮚಶᩘࡢ๭ྜࢆ⢊໬⋡࡜ࡋࡓ㸬ᐜჾᚄࡀᑠࡉ࠸࡯࡝㸪Ⲵ㔜࡟ᑐࡍࡿ

Primary particle size [mm]1.0Compressive velocity [mm/min]

10

Joint-spring coefficient [kN/m]

5, 10

Maximum strain [-]0.10

Drum diameter [mm]200, 300, 400

Frictional coefficient [-]0.5⢊໬⋡ࡢ್ࡣ኱ࡁࡃ࡞ࡗࡓ㸬ࡇࢀࡣቨࡢᙳ㡪࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪༢⢏Ꮚࡢᅽ⦰ᙉᗘࡀᑠࡉ࠸᪉ࡀ⢊໬⋡ࡀ኱ࡁࡃ࡞ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ᮏィ⟬ࣔࢹࣝࢆ⏝࠸ࡿࡇ࡜࡛㸪Ⲵ㔜࡟ᑐࡍࡿ⢊໬⋡ࢆྲྀᚓ࡛ࡁࡿ࡯࠿㸪⢏Ꮚ⩌ෆ㒊࡛ࡢᛂຊศᕸࡶྲྀᚓࡍࡿࡇ࡜ࡀ࡛ࡁࡿࡓࡵ㸪⢏Ꮚ⩌ࡢ඘ሸᵓ㐀ࡀ◚○࡟ཬࡰࡍᙳ㡪➼ࡶㄪᰝࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿ㸬
4. ⤖ㄽ ༢⢏Ꮚࡢ◚○≉ᛶ࠿ࡽ⢏Ꮚ⩌◚○≉ᛶࢆண(a) Before compressࡍࡿࡓࡵࡢࢶ࣮ࣝ࡜ࡋ࡚ ADEM ࢆᵓ⠏ࡋ㸪෇⟄ᐜჾ࡟࠾ࡅࡿ⢏Ꮚ⩌ࡢᅽ⦰ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓ㸬ࡑࡢ⤖ᯝ㸪ᅽ⦰ᙉᗘࡀ኱
ࡁ࠸࡯࡝⢊໬⋡ࡣᑠࡉࡃ࡞ࡗࡓ㸬ࡲࡓ㸪෇⟄ᐜჾࡢᚄࡀᑠ
ࡉ࠸࡯࡝⢊໬⋡ࡀ኱ࡁࡃ࡞ࡿ⤖ᯝࡀᚓࡽࢀࡓ㸬ࢩ࣑࣮ࣗࣞ
ࢩࣙࣥ࠿ࡽᚓࡽࢀࡓ⤖ᯝࡣ㸪௒ᚋᐇ㦂࡜ࡢᐃ㔞ⓗ࡞ẚ㍑࡟
ࡼࡾ᳨ドࡍࡿணᐃ࡛࠶ࡿࡀ㸪ᮏᡭἲࢆ⏝࠸ࡿࡇ࡜࡛㸪ᅽ⦰ᡂᙧ㐣⛬࡛ࡢจ㞟⢏Ꮚࡢᔂቯ㐣⛬ࡢヲ⣽࡞ゎᯒࡀྍ⬟࡜࡞ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬(b) After compress
Fig.2 Compressing behavior of cluster particles.

ཧ⪃ᩥ⊩1) S. Ishihara, Q. Zhang and J. Kano: “ADEM Simulation of㻌㼐㻞㻜㻜㼋㻝㻜㻺㻛㼙㻌㼐㻞㻜㻜㼋㻡㻺㻛㼙㻌㼐㻟㻜㻜㼋㻝㻜㻺㻛㼙㻌㼐㻟㻜㻜㼋㻡㻺㻛㼙㻌㼐㻠㻜㻜㼋㻝㻜㻺㻛㼙㻌㼐㻠㻜㻜㼋㻡㻺㻛㼙Particle Breakage Behavior”, J. Soc. Powder Technol., 51,
㻞㻜2) P. A. Cundall and O. D. L. Strack: “A discrete numericalmodel for granular assenblies”, Geotechnique, 29, 47-65 (1979)
3) P. A. Cundall: “Explicit finite difference method ingeomechanics”, second Int. Conf. Numerical Methods in㻼㼛㼣㼐㼑㼞㻌㼞㼍㼠㼕㼛㻌㻔㻑㻕

407-414 (2014)

㻝㻡

㻝㻜

㻡

Geomechanics, 2, 132-150 (1976)㻌

㻜
㻜

㻡㻜㻜

㻝㻜㻜㻜

㻝㻡㻜㻜

㻞㻜㻜㻜

㻞㻡㻜㻜

㻸㼛㼍㼐㻌㻔㼗㻺㻕Fig.3 Powder ratio as a function of load.
㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧−4−ᶵᲔⓗ⢏Ꮚ」ྜ໬ࣉࣟࢭࢫ࡟ࡼࡿ࢔࣑ࣝࢼ⣔ࢭ࣑ࣛࢵࢡࢫࡢᚤᵓ㐀࡜≉ᛶไᚚᶓ὾ᅜ❧኱Ꮫ
ከࠎぢ⣧୍㸯㸬┠ⓗAl2O3ࢭ࣑ࣛࢵࢡࢫࡣ㧗ᙉᗘ㸪㧗⇕ఏᑟᛶ࡛⪏⇕ᛶࡸ⪏ᦶ⪖ᛶ࡟ඃࢀ࡚࠸ࡿࡓࡵᵝࠎ࡞〇ရ࡟ᛂ⏝ࡉࢀ࡚࠸ࡿ㸬୰࡛ࡶ㸪Al2O3 / ZrO2」ྜᮦᩱࢭ࣑ࣛࢵࢡࢫࡣZrO2ࡢ┦㌿⛣࡜ࡢAl2O3ࡢ㧗๛ᛶ࡟㉳ᅉࡋ࡚ᶵᲔⓗ≉ᛶࡀྥୖࡍࡿࡇ࡜ࡀぢ㎸ࡲࢀ࡚࠸ࡿᮦᩱ࡛࠶ࡿ㸬ࡇࡢࡼ࠺࡞ࢭ࣑ࣛࢵࢡࢫ〇ရࡣཎᩱ⢊యࢆΰྜ࣭ศᩓࡋࡓᚋᡂᙧ࣭↝⤖ࡉࢀ࡚స〇ࡉࢀࡿ㸬≉࡟ཎᩱ⢊యࡢΰྜ㸪ศᩓࡣ〇ရࡢ≉ᛶࢆᨭ㓄ࡍࡿ㔜せ࡞ࣉࣟࢭࢫ࡛࠶ࡿ㸬ᶵᲔⓗ⢏Ꮚ」ྜ໬ࣉࣟࢭࢫࡣ⢏Ꮚ㛫࡟ᶵᲔⓗእຊࢆຍ࠼ࡿࡇ࡜࡛⢏Ꮚྠኈࢆ᥋ྜࡉࡏࡿࡇ࡜ࡀ࡛ࡁࡿᢏ⾡࡛࠶ࡿ㸬ᚤ⢏Ꮚࡢᆒ୍ศᩓࡋࡓ」ྜ⢏Ꮚࢆᚓࡽࢀࡿᡭἲ࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛㸪ᶵᲔⓗ⢏Ꮚ」ྜ໬ࣉࣟࢭࢫ࡟ࡼࡾㄪᩚࡋࡓAl2O3࡜ZrO2ࢆᆒ
୍ศᩓࡋࡓ」ྜ⢏Ꮚࢆ⏝࠸࡚Al2O3/ZrO2」ྜᮦᩱࢭ࣑ࣛࢵࢡࢫࢆస〇ࡋ㸪ࡑࡢᚤᵓ㐀ほᐹ࡜≉ᛶホ౯ࢆ⾜࠺ࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬㸰㸬◊✲᪉ἲ
ฟⓎཎᩱ࡜ࡋ࡚ Ǆ-Al2O3(኱᫂໬Ꮫᕤᴗ(ᰴ)㸪TM300㸪ᖹᆒ⢏ᚄ 0.01Ǎm)㸪ZrO2(ᮾࢯ࣮(ᰴ)㸪TZ-3Y㸪
ᖹᆒ⢏Ꮚᚄ 0.1Ǎm)ࢆ⏝࠸ࡓ㸬ࡇࢀࡽࡢ⢊యࢆ㔜㔞ẚ࡛ Ǆ-Al2O3: ZrO2 =2㸸3㸦య✚ẚ 1㸸㸯㸧࡜࡞ࡿࡼ࠺࡟⛗㔞ࡋࡓ㸬ࡇࢀࡽࡢ⢊యࢆࡑࢀࡒࢀ㸪ᶵᲔⓗ⢏Ꮚ」ྜ໬⿦⨨(ࣀࣅࣝࢱ NB-130(࣍ࢯ࣑࢝࣡ࢡࣟࣥ(ᰴ)〇))ࢆ⏝࠸࡚㸪3kW㸪10 ศಖᣢࡢ᮲௳࡛ᶵᲔⓗฎ⌮ࢆ⾜ࡗࡓ㸬ẚ㍑ࡢࡓࡵ㸪8㹥ࡢ
Al2O3 ࡜ 12㹥ࡢ ZrO2 ࢆ࣏࣏ࣜࢵࢺ㸦ෆᐜ✚㸸250ml㸧࡟ᢞධࡋ࣮࣑࣎ࣝࣝ࡟ࡼࡾᅇ㌿㏿ᗘ 110rpm㸪
100ml ࡢ࢚ࢱࣀ࣮ࣝ㸪1wt%ࡢศᩓ๣㸦ࢭࣝࢼ㹂305㸧㸪4h ࡢ᮲௳࡛ΰྜࡋࡓ㸬ᚓࡽࢀࡓ↝⤖య࡟
ᑐࡋ࡚㸪BET ୍Ⅼἲ࡟ࡼࡿẚ⾲㠃✚࠾ࡼࡧᚤᵓ㐀ほᐹࢆ⾜ࡗࡓ㸬ᚓࡽࢀࡓΰྜ⢊యࡢ⥲㔞࡟ᑐࡋ࡚ 4wt%ࡢࣃࣛࣇ࢕ࣥ(⣧ṇ໬Ꮫ(ᰴ)㸪m.p.46㹼48)ࢆ㔞ࡾྲྀࡾ㸪
༑ศ࡟⼥ゎࡋ࡚࠿ࡽ 10wt%ࡢ DOP(ࣇࢱࣝ㓟ࣅࢫ(2-࢚ࢳࣝ࣊࢟ࢩࣝ)㸪࿴ග⣧⸆ᕤᴗ(ᰴ)㸪⣧ᗘ㸸
97.0%)㸪35ml ࡢࢩࢡࣟ࣊࢟ࢧࣥ(࿴ග⣧⸆ᕤᴗ(ᰴ)㸪⣧ᗘ㸸99.5%)ࢆඹ࡟ຍ࠼Ⰻࡃ᧠ᢾࡋ⵨Ⓨࡉࡏࡓ㸬༑ศ࡟⵨Ⓨࡉࡏࡓᚋ㸪┠㛤ࡁ 250Ǎm ࡢ⠠࡛ᙉไ㏻⠠ࡋ࡚㐀⢏⢊యࢆᚓࡓ㸬ㄪ〇ࡋࡓ㐀⢏⢊యࢆ Ǘ15mm ࡢ㔠ᆺ࡟࡚㸪୍㍈ᡂᙧᶵ࡛ᡂᙧࡋࡓ㸬ࡑࡢᚋ㸪෭㛫㟼Ỉᅽຍᅽ⿦⨨㸦CPA-50 MPa
ࢩࢫࢸ࣒ओ〇㸧ࢆ⏝࠸࡚ 200MPa ࡢᅽຊ࡛ 60 ⛊㛫 CIP ᡂᙧࢆ⾜ࡗࡓ㸬ࡇࢀࡽࡢᡂᙧయࢆ 10Υ/min᪼ 㸪↝ᡂ ᗘ 1600Υ㸪ಖᣢ᫬㛫 1h ࡛↝ᡂࡋࡓ㸬ᚓࡽࢀࡓ↝⤖య࡟ᑐࡋ࡚ᵓᡂ┦ࡢྠᐃ㸪ᚤᵓ㐀ほᐹ㸪IF ἲ࡟ࡼࡿࣅࢵ࣮࢝ࢫ◳ࡉ࡜◚ቯ㠌ᛶ ᐃ㸪࢔࣓ࣝ࢟ࢹࢫἲ࡟ࡼࡿ┦ᑐᐦᗘࡢ ᐃࢆ⾜ࡗࡓ㸬㸱㸬⤖ᯝ ᶵᲔⓗ⢏Ꮚ」ྜ໬࠾ࡼࡧ࣮࣑࣎ࣝࣝฎ⌮ᚋࡢ⢊యࡢ SEM ෗┿ࢆᅗ㸯࡟♧ࡋࡓ㸬࣮࣑࣎ࣝࣝฎ
⌮ᚋࡢ⢊యࡣศᩓᚋȚ-Al2O3 ࡀ ZrO2 ࡜ศ㞳ࡋ࡚Ꮡᅾࡋ࡚࠸ࡿᵝᏊࡀ☜ㄆࡉࢀࡓ㸬ࡑࢀ࡟ᑐࡋ࡚ᶵ
Ეⓗ⢏Ꮚ」ྜ໬ฎ⌮ᚋࡢ⢊యࡣࢪࣝࢥࢽ࢔⢏Ꮚࢆ࢔࣑ࣝࢼࡀ⿕そࡋࡓࡼ࠺࡞」ྜ⢏Ꮚ࡟࡞ࡗ࡚࠸ࡓ㸬స〇ࡉࢀࡓ↝⤖య࡟ᑐࡋ࡚ XRD ᐃ࡟ࡼࡿᵓᡂ┦ࡢྠᐃࢆ⾜ࡗࡓ㸬ྛ↝⤖యࡢ XRD ࣉࣟࣇ࢓࢖ࣝࢆ
ᅗ 2 ࡟♧ࡍ㸬࠸ࡎࢀࡢ↝⤖య࡟࠾࠸࡚ࡶ ǂ-Al2O3 ࡜
ZrO2 ࡢࡳࡀྠᐃࡉࢀࡓ㸬ࡍ࡞ࢃࡕ㸪1600Υࡢ↝ᡂ࡛ Ǆ-Al2O3 ࠿ࡽ ǂ-Al2O3 ࡟┦㌿⛣ࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬 ⾲ 1 ࡟ᶵᲔⓗฎ⌮ᚋࡢ⢊య࠾ࡼࡧᚓࡽࢀࡓ↝⤖యࡢ≉ᛶࢆ♧ࡍ㸬ᶵᲔⓗ⢏Ꮚ」ྜ໬ฎ⌮ᚋࡢ⢊యࡣ࣮࣑࣎ࣝࣝฎ⌮ᚋࡢ⢊య࡜ẚ㍑ࡋ࡚ẚ⾲㠃✚ࡣᑠࡉᅗ 1 ᶵᲔⓗ⢏Ꮚ」ྜ໬ฎ⌮࡛స〇ࡋࡓࡃ㸪ࡲࡓࢱࢵࣉᐦᗘࡣ㧗ࡃ࡞ࡗࡓ㸬ẚ⾲㠃✚ࡢపୗ
Ǆ-Al2O3㸭ZrO2 」ྜ⢏Ꮚࡢ SEM ෗┿ࡣᶵᲔⓗ⢏Ꮚ」ྜ໬࡟ࡼࡿ⢏Ꮚ㛫ࡢ᥋ྜ࡟㉳ᅉࡍ−5−ࡿࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪୍⯡ⓗ࡟ࢼࣀ⢏Ꮚࢪࣝࢥࢽ࢔ࡢὶືᛶࡣప࠸ࡇ࡜࠿ࡽ㸪ᶵᲔⓗ⢏Ꮚ」ྜ໬ฎ
࢔࣑ࣝࢼ⌮ᚋࡢ⢊యࡣࢼࣀࢧ࢖ࢬࡢ Ǆ- Al2O3 ࡜ ZrO2 ࡀ」ྜ໬ࡋ࡚㸪ぢࡏ࠿ࡅୖࢧࣈ࣑ࢡࣟࣥࢧ࢖ࢬࡢ
⢏Ꮚࡢࡳ࡟࡞ࡗࡓࡇ࡜࠿ࡽὶືᛶࡀྥୖࡋ㸪ࢱ࣮࣑࣎ࣝࣝࢵࣉᐦᗘࡀ㧗࠸್࡟࡞ࡗࡓࡇ࡜࡜᥎ ࡉࢀࡿ㸬↝⤖యࡢᐦᗘࡣ࣮࣑࣎ࣝࣝ࡟ẚ࡭࡚ᶵᲔⓗฎ⌮ᚋࡢ⢊య࡛స〇ࡋࡓヨᩱࡢ᪉ࡀ㧗࠸್ࢆ♧ࡋࡓ㸬ᅗ 3 ࡟↝⤖యࡢ⤌ᡂീࢆ♧ࡍ㸬ⓑ࠸⢏Ꮚࡀ」ྜ໬ࢪࣝࢥࢽ࢔㸪㯮࠸⢏Ꮚࡀ࢔࣑ࣝࢼ࡛࠶ࡿ㸬⤌ᡂീ࠿ࡽ࣮࣑࣎ࣝࣝฎ⌮࡛ࡣ࢔࣑ࣝࢼࡸࢪࣝࢥࢽ
20
40
60
80
࢔ࡢ೫ࡾࡀࡳࡽࢀࡿࡢ࡟ᑐࡋ࡚㸪」ྜ໬ฎ⌮ࢆ
2T/degree
⾜ࡗࡓ᪉ࡀ࢔࣑ࣝࢼ࡜ࢪࣝࢥࢽ࢔ࡀᆒ୍࡟ศᩓ
ᅗ 2 స〇ࡋࡓ↝⤖యࡢ XRD ࣉࣟࣇ࢓࢖ࣝ
ࡋ࡚࠸ࡿᵝᏊࡀぢࡽࢀࡓ㸬ࡇࢀࡣᶵᲔⓗ⢏Ꮚ」ྜ໬ฎ⌮࡟ࡼࡾᆒ୍࡟⿕そࡋࡓ」ྜ⢏Ꮚࡀᚓࡽࢀࡓࡓࡵ࡟ྠ୍⢏Ꮚྠኈࡢ⢏ᡂ㛗ࡀᢚไࡉࢀ୺࡜
ࡋ࡚࢔࣑ࣝࢼࡢ↝⤖ࡀᆒ୍࡟㐍⾜ࡋࡓࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࣅࢵ࣮࢝ࢫ◳ࡉࡣ⦓ᐦ໬ࡀ㐍⾜ࡋࡓ」ྜ໬ฎ⌮ヨᩱࡢ᪉ࡀ㧗࠸್ࢆ♧ࡋࡓ㸬ࡲࡓ」ྜ໬ࡢ◚ቯ㠌ᛶ್ࡣ 5.5MPa/m1/2 ࡜࡞ࡾ ZrO2
↓ῧຍࡢ Al2O3 ࡼࡾ㧗࠸್ࢆ♧ࡋࡓ㸬㸲㸬⤖ㄽ
Ǆ-Al2O3࡜ZrO2⢏Ꮚࢆ⏝࠸࡚ᶵᲔⓗ⢏Ꮚ」ྜ໬ࣉࣟࢭࢫ࡟ࡼࡾ」ྜ⢏Ꮚࢆᚓࡓ㸬ࡇࢀࢆ⏝࠸࡚
Al2O3/ZrO2」ྜ⏝࠸࡚࣮࣑࣎ࣝࣝ࡟ࡼࡿ‵ᘧΰྜ࡟ࡼࡿᐇ㦂ࡶ⾜ࡗࡓ㸬ᮦᩱࢭ࣑ࣛࢵࢡࢫࢆస〇ࡋࡓ㸬ẚ㍑ࡢࡓࡵྠᵝࡢᮦᩱࢆᶵᲔⓗ⢏Ꮚ」ྜ໬ࣉࣟࢭࢫ࠿ࡽᚓࡽࢀࡓ⢊యࡣZrO2ࢆAl2O3࡛⿕そࡋࡓ⢏Ꮚ࡟࡞ࡗ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡇࢀࡽࢆ⏝࠸࡚స〇ࡋࡓ↝⤖యࡢᚤᵓ㐀ほᐹࡢ⤖ᯝ㸪࣮࣑࣎ࣝࣝ⢊య࠿ࡽᚓࡓ↝⤖యࡣZrO2࠾ࡼࡧAl2O3ࡀ೫ࡗ࡚ほᐹࡉࢀࡓ㸬ࡇࢀ࡟ᑐࡋ࡚㸪ᶵᲔⓗ⢏Ꮚ」ྜ໬ࣉࣟࢭࢫ⢊యࡣ୧᪉ࡀᆒ୍ศᩓࡋ࡚࠾ࡾ㸪⢏ᡂ㛗ࡀᢚ࠼ࡽࢀ⦓ᐦ໬ࡀ㐍⾜ࡋ࡚࠸ࡿᵝᏊࡀ☜ㄆࡉࢀࡓ㸬ࡲࡓ㸪┦ᑐᐦᗘ㸪ࣅࢵ࣮࢝ࢫ◳ࡉࡣ࡜ࡶ࡟ᶵᲔⓗ⢏Ꮚ」ྜ໬ࣉࣟࢭࢫ⢊య࡟ࡼࡾస〇ࡋࡓ↝⤖యࡢ᪉ࡀ㧗࠸್ࢆ♧ࡋࡓ㸬ᶵᲔⓗ⢏Ꮚ」ྜ໬ࣉࣟࢭࢫࡣᐇ㦂ࡢ⡆᫆ᛶ࡟ຍ࠼㸪≉ᛶྥୖࢆ┠ᣦࡋࡓࢭ࣑ࣛࢵࢡࢫࡢస〇࡟ࡶ᭷⏝࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫศ㔝㸧(a)」ྜ໬(b)࣮࣑࣎ࣝࣝ

ᅗ 3 స〇ࡋࡓ↝⤖యࡢ SEM ෗┿⾲ Ǆ-Al2O3-ZrO2 ΰྜ⢊య࠾ࡼࡧ↝⤖యࡢ≉ᛶ
ΰྜ᪉ἲ
࣮࣑࣎ࣝࣝ
」ྜ໬

ẚ⾲㠃✚
[m2/g]
73.2
59.8

ࢱࢵࣉᐦᗘ
[g/cm3]
0.61
1.1

┦ᑐᐦᗘ
[%]
95.7
95.9

−6−

ࣅࢵ࣮࢝ࢫ◳ࡉ
[GPa]
13.7
11.6

KIC

[MPa㺃m1/2]
5.5

ࢩࣜ࢝ࢼࣀ⢏Ꮚࢆ⏝࠸ࡓ࢝ࣅ⬊Ꮚࡢ௜╔ᢚไ኱㜰ᗓ❧኱Ꮫ኱Ꮫ㝔 ᕤᏛ◊✲⛉㔝ᮧ ಇஅ
1.

┠ⓗ࢝ࣅࡣࠊ┿⳦㢮࡟ᒓࡍࡿᚤ⏕≀࡛⬊Ꮚ࡟ࡼࡗ࡚⦾Ṫࡍࡿࠋ࢝ࣅࡀ኱Ẽ୰࡛ቑṪࡍࡿ࡜ࠊࣁ࢖ࢻࣟࣇ࢛࣮ࣅࣥ࡜

࿧ࡤࢀࡿ୧ぶ፹ᛶࡢࢱࣥࣃࢡศᏊࢆ⳦⣒ඛ➃࠿ࡽศἪࡋࠊ⣽⬊⾲㠃ࡀ␯Ỉᛶ࡜࡞ࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡇࡢ
ࡓࡵࠊ࢝ࣅࡢ⬊Ꮚࡣ✀ࠎࡢᅛయ⏺㠃࡟௜╔ࡋ᫆ࡃࠊ⦾Ṫ᮲௳㸦 ᗘࠊ‵ᗘࠊᰤ㣴※㸧ࡀᥞ࠺࡜ࠊ⬊Ꮚࡣ⳦⣒ࢆఙࡤࡋ࡚⇿Ⓨⓗ࡟⦾Ṫࡋࠊ࢔ࣞࣝࢠ࣮ࡸ㣗୰ẘࡢཎᅉ࡜࡞ࡿࡇ࡜ࡀ࠶ࡿࠋࡋࡓࡀࡗ࡚ࠊ㧗 ከ‵࡞᫬ᮇࡢ࠶ࡿ᪥ᮏ
࡛ࡣࠊ࢝ࣅ࡟ࡼࡿࢺࣛࣈࣝᑐ⟇ࡣᚲせ୙ྍḞ࡛࠶ࡿࠋࡑࡢᑐ⟇ἲࡢ୍ࡘ࡜ࡋ࡚ࠊ࢝ࣅ⬊Ꮚࡀ௜╔ࡋ࡟ࡃ࠸⏺㠃ࢆタィࡍࡿࡇ࡜ࡀ᭷ຠ࡞᪉ἲࡢ୍ࡘ࡜ࡋ࡚⪃࠼ࡽࢀࡿࠋ
ࡑࡇ࡛ᮏ◊✲࡛ࡣࠊᅛయᇶᯈࡢ⾲㠃ࢆࣉࣛࢬ࣐ࡸࢩࣜ࢝ࢼࣀ⢏Ꮚ࡛ฎ⌮ࡍࡿࡇ࡜࡛ࠊ࢝ࣅ⬊Ꮚࡢ௜╔≉ᛶ࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓࠋ2.

◊✲᪉ἲ࢝ࣅࡢࣔࢹࣝᚤ⏕≀࡜ࡋ࡚ Aspergillus oryzaeࠊᅛయᇶᯈ࡜ࡋ࡚ࢫࣛ࢖ࢻ࢞ࣛࢫ㸦ᯇᾉ◪ᏊࠊS2815㸧ࢆ⏝࠸ࡓࠋᐇ㦂࡟ࡣࠊࡑࡢࡲࡲ㸦ᮍฎ⌮㸧ࡢ࢞ࣛࢫᇶᯈࠊᇶᯈ⾲㠃ࢆࣉࣛࢬ࣐ฎ⌮ࡋࡓ࢞ࣛࢫࠊᦶ○࣑ࣝᘧᡂ⭷⿦⨨ࢆ⏝࠸࡚ぶỈᛶࢩࣜ࢝ࢼࣀ⢏Ꮚ㸦ࢹࢢࢧࠊAerosil 300㸧ࢆࢥ࣮ࢸ࢕ࣥࢢࡋࡓ࢞ࣛࢫࡢ 3 ✀㢮ࢆ⏝࠸ࡓࠋᐮኳᇵᆅୖ࡟ᙧᡂ
ࡉࢀࡓ⬊Ꮚࢆ 1 cm ゅࡢ࢞ࣛࢫᇶᯈ࡛ࡺࡗࡃࡾ࡜࡞ࡒࡾࠊᇶᯈ⾲㠃࡟⬊Ꮚࢆ௜╔ࡉࡏࡓࠋḟ࡟ࠊᇶᯈ⾲㠃࡟࢚࢔ࢲࢫࢱ࣮ࢆ 10 ⛊㛫྿ࡁࡘࡅࡿࡇ࡜࡛ࠊ௜╔ຊࡢᙅ࠸వศ࡞⬊Ꮚࢆ㝖ཤࡋࡓࠋࡑࡢᚋࠊᇶᯈࢆࣆࣥࢭࢵࢺ࡛ࡘ࠿ࢇ࡛
⣧Ỉ࡟ᾐₕࡋࠊᡭ࡛ 20 ᅇ᣺┞ࢆ⾜ࡗࡓࠋᇶᯈ࡟௜╔ࡋࡓ⬊ᏊࡣගᏛ㢧ᚤ㙾㸦࢜ࣜࣥࣃࢫࠊBX60㸧࡟ࡼࡾほᐹࡋࡓࠋ࢝ࣅ⬊Ꮚࡢᅛయ⾲㠃࡟࠾ࡅࡿ௜╔≉ᛶࢆ⇕ຊᏛⓗほⅬ࠿ࡽホ౯ࡍࡿࡓࡵ࡟ࠊ⬊Ꮚ࡜࢞ࣛࢫ⾲㠃࡟࠾ࡅࡿᴟᛶࡢ
␗࡞ࡿ 3 ✀㢮ࡢ⁐፹ࡢ᥋ゐゅࢆᾮ⁲ἲ࡟ࡼࡾ ᐃࡋࡓࠋࡲࡓࠊཎᏊ㛫ຊ㢧ᚤ㙾 AFM ࢆ⏝࠸࡚ࠊ࢝ࣅ⬊Ꮚ㸫ᅛయ⾲㠃㛫࡟ാࡃ┦஫స⏝ຊࢆ┤᥋ ᐃࡍࡿࡓࡵ࡟ࠊࢳࢵࣉࣞࢫࡢ࢝ࣥࢳࣞࣂ࣮㸦BrukerࠊMLCT-O10ࠊࣂࢿᐃᩘ 0.6 N/m㸧࡟࢝ࣅ⬊Ꮚࢆ࢔ࣛࣝࢲ࢖ࢺ࡛ᅛᐃࡋࡓࠋḟ࡟ࠊస〇ࡋࡓ⬊Ꮚࣉ࣮ࣟࣈࢆࢭࢵࢺࡋࡓ AFM ࢆ⏝࠸࡚ࠊỈ୰࡟࠾࠸࡚
࢝ࣅ⬊Ꮚ㸫ᅛయ⾲㠃㛫࡟ാࡃ┦஫స⏝ຊࢆ┤᥋ ᐃࡋࡓࠋ㉮ᰝ㏿ᗘࡣ 500 nm/sࠊ᥋ゐᅽࡣ 0.5 nNࠊ᥋ゐ᫬㛫ࡣ 0.1 s
࡜ࡋࠊ10 μm10 μm ࡢ⠊ᅖࢆ 1010 pixels ࡛ࣇ࢛࣮ࢫ࣐ࢵࣆࣥࢢࢆ⾜ࡗࡓࠋ3.

◊✲⤖ᯝཬࡧ⪃ᐹ࢞ࣛࢫᇶᯈ⾲㠃ࡢ⬊Ꮚࡢ௜╔≧ែࢆỈὙ๓ᚋ࡛ẚ㍑ࡋࡓ⏬ീࢆ Fig. 1 ࡟♧ࡍࠋ✵Ẽ୰࡛⬊Ꮚࢆ௜╔ࡉࡏ࡚࠿ࡽẼὶὙίࡋࡓሙྜࠊ⾲㠃ฎ⌮ࡢ᭷↓࡟㛵ࢃࡽࡎࠊ⬊Ꮚࡀᐦ࡟௜╔ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡇࢀࡣࠊ␯Ỉᛶ࡛ࡣ࡞࠸≀㉁⾲㠃࡟࠾࠸࡚ࡶࠊ⬊Ꮚࡣ㠀ᖖ࡟ࡼࡃ௜╔ࡍࡿࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋḟ࡟ࠊࡑࢀࡽࡢᇶᯈ⾲㠃ࢆỈ୰࡛Ὑίࡍࡿ࡜ࠊ኱ከᩘࡢ⬊Ꮚࡣ㝖ཤࡉࢀࡿࡀࠊᮍฎ⌮ࡢ࢞ࣛࢫ⾲㠃࡟ࡣ 1 ⏬ീᙜࡓࡾ 64.4s9.3 ಶࡢ⬊ᏊࡀṧᏑࡋ࡚࠸ࡿ
ࡇ࡜ࡀศ࠿ࡗࡓࠋ୍᪉ࠊ࢞ࣛࢫᇶᯈ⾲㠃ࢆࣉࣛࢬ࣐࡛ฎ⌮ࡍࡿ࡜ࠊ1 ⏬ീᙜࡓࡾࡢṧᏑ⬊Ꮚࡣ 17.6s2.3 ಶࠊぶỈᛶࢩࣜ࢝ࢼࣀ⢏Ꮚ࡛ฎ⌮ࡍࡿ࡜ 9.0s1.3 ಶ࡜ࠊࡉࡽ࡟ῶᑡࡍࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡇࢀࡼࡾࠊᅛయ⾲㠃ࢆࣉࣛࢬ࣐
ฎ⌮ࡸぶỈᛶࢩࣜ࢝ࢼࣀ⢏Ꮚ࡛ฎ⌮ࡍࡿ࡜ࠊỈ୰࡟࠾࠸࡚ᡭ࡛᣺┞ࡍࡿࡔࡅ࡛࢝ࣅ⬊Ꮚࡢᅛయ⾲㠃࡬ࡢ௜╔ࢆ๻ⓗ࡟ᢚไ࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
࢝ࣅ⬊Ꮚࡢᇶᯈ⾲㠃࡟࠾ࡅࡿ௜╔Ᏻᐃᛶ࡟ࡘ࠸࡚ホ౯ࡍࡿࡓࡵ࡟ࠊᾮ⁲ἲ࡟ࡼࡾ᥋ゐゅ ᐃࢆ⾜ࡗࡓ㸦Table 1㸧ࠋ⾲࡟ࡣࠊ㓟ሷᇶ┦஫స⏝ࢆ⪃៖ࡋࡓ Young-Dupré ࡢᘧࡼࡾ᥎⟬ࡋࡓ⾲㠃ᙇຊࡶ♧ࡋࡓࠋࡇࢀࡽࡼࡾࠊ࢞ࣛࢫᇶᯈ
⾲㠃ࢆࣉࣛࢬ࣐ࡸぶỈᛶࢩࣜ࢝ࢼࣀ⢏Ꮚ࡛ฎ⌮ࡍࡿ࡜ࠊỈࡢ᥋ゐゅࡀ኱ࡁࡃῶᑡࡋࠊ⾲㠃ࡀぶỈ໬ࡉࢀ࡚࠸ࡿࡇ
࡜ࡀ☜ㄆ࡛ࡁࡓࠋࡲࡓࠊ඲⾲㠃ᙇຊ࡟኱ࡁ࡞㐪࠸ࡣ࡞࠸ࡀࠊ㟁Ꮚཷᐜᡂศࡀ኱ࡁࡃ࡞ࡿࡇ࡜ࡶศ࠿ࡗࡓࠋ୍᪉ࠊ

−7−

A. oryzae ࡟ᑐࡍࡿỈࡢ᥋ゐゅࡣ 86s3 ᗘ࡜࡞ࡗࡓࡇ࡜࠿ࡽࠊ࢝ࣅࡣ␯Ỉᛶ࡛࠶ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋࡇࢀࡣࠊ୧
ぶ፹ᛶࢱࣥࣃࢡ㉁ࣁ࢖ࢻࣟࣇ࢛࣮ࣅࣥࡀ␯Ỉᇶࢆእഃ࡟ྥࡅ࡚྾╔ࡍࡿࡓࡵ࡛࠶ࡿࠋࡉࡽ࡟ࠊA. oryzae ࡢ⬊Ꮚࡀࠊ࢞ࣛࢫᇶᯈୖ࡟௜╔ࡋࡓ࡜ࡁࡢ⾲㠃⮬⏤࢚ࢿࣝࢠ࣮ኚ໬ǼG ࢆィ⟬ࡋࡓࠋࡑࡢ⤖ᯝࠊ⬊Ꮚࡀᮍฎ⌮ࡢ࢞ࣛࢫᇶᯈ
࡟௜╔ࡍࡿ࡜ࡁࡢǼG ࡣ-10.5 mJ/m2 ࡜㈇ࡢ

ǼG ࡣࢃࡎ࠿࡛ࡣ࠶ࡿࡀṇࡢ್࡜࡞ࡾࠊ⬊Ꮚࡣ௜╔ࡋ࡟ࡃࡃ࡞ࡿ࡜ண ࡉࢀࡓࠋ௨ୖ
ࡢ⇕ຊᏛⓗぢᆅ࠿ࡽࡢண

ࡣࠊ⬊Ꮚࡢ௜

╔࣭⬺㞳ᐇ㦂ࡢ⤖ᯝ࡜ഴྥࡀⰋࡃ୍⮴ࡋ࡚࠸ࡓࠋḟ࡟ࠊAFM ࢆ⏝࠸࡚Ỉ୰࡟࠾ࡅࡿ⬊Ꮚ

Table 1 Contact angles, roughness, and surface tensions.

ࢆ Fig. 2 ࡟♧ࡍࠋᅗ୰࡟ࡣࣇ࢛࣮ࢫ࣮࢝ࣈ
ࡢ୍౛ࡶ♧ࡋࡓࠋ⏬ീ㸦Fig. 2A㸧ࡼࡾࠊ⬊Ꮚࡣࣉ࣮ࣟࣈࡢඛ➃࡟ᅛᐃࡉࢀ࡚࠸ࡿࡇ

Nano-silica coatFig. 1 Digital images of adhered spores on glass.

ࡢ௜╔ຊࢆ┤᥋ホ౯ࡋࡓࠋస〇ࡋࡓ⬊Ꮚࣉ࣮ࣟࣈ࡜࢞ࣛࢫ⾲㠃࡟࠾ࡅࡿ௜╔ຊศᕸ

Non-coat (Plasma)

Before washing୍᪉ࠊ࢞ࣛࢫᇶᯈ⾲㠃ࢆぶỈ໬ฎ⌮ࡍࡿ࡜

Non-coat

After washing್࡜࡞ࡾࠊ⬊Ꮚࡣ௜╔ࡋ᫆࠸࡜ண᝿ࡉࢀࡓࠋ

Contact angle [Degree]

Fungi
Substratum

Surface tension [mJ/m2]ߠ ୛ୟ‫כ‬ߠ ୊ୟ‫כ‬ߠ ୆୰‫כ‬

ߛ ୐୛

ߛା

ߛି

ߛ ୅୆

ߛ ୘୭୲ୟ୪

࡜ࡀ☜ㄆ࡛ࡁࡓࠋࡲࡓࠊ⬊Ꮚࣉ࣮ࣟࣈࢆ⏝࠸࡚ ᐃࡋࡓ௜╔ຊࡣࠊᮍಟ㣭ࡢ࢞ࣛࢫᇶ

A. oryzae

86㼼3

75㼼6

94㼼5

9.6

4.2

7.8

11.5

21.1

ᯈ࡛ࡣ 4.66s0.19 nN ࡛࠶ࡗࡓࡢ࡟ᑐࡋ࡚ࠊ

Non-coat
glass

44㼼4

27㼼2

20㼼1

41.8

1.0

29.3

10.8

52.6

Non-coatglass(Plasma)

8㼼1

6㼼1

15㼼1

43.0

1.0

54.0

14.0

57.0

ࡋ࡚࠸࡞࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋࡇࡇ࡛ࠊࣉࣛ

Nano-silica
coat glass

6㼼1

8㼼1

7㼼1

44.1

0.6

55.4

11.9

56.0

ࢬ࣐ฎ⌮ࡼࡾࡶࠊぶỈᛶࢩࣜ࢝ࢼࣀ⢏Ꮚฎ

*Wa, Water; Fo, Formamide; Br, Į-BromonaphthalenenN ࡟ῶᑡࡋࡓࠋࡲࡓࠊࢩࣜ࢝ࢼࣀ⢏Ꮚ࡛ฎ⌮ࡍࡿ࡜ 0.04s0.02 nN ࡟๻ⓗ࡟ῶᑡࡋࠊ
⬊Ꮚ࡜ᇶᯈ㛫࡟ࡣ௜╔ຊࡀ࡯࡜ࢇ࡝స⏝⌮ࡢ᪉ࡀ௜╔ຊࡣࡉࡽ࡟ᑠࡉࡃ࡞ࡾࠊ⬊ᏊB) Non-coatA) Spore probeࡢ௜╔ᢚไࡀຠᯝⓗ࡛࠶ࡗࡓࡢࡣࠊᇶᯈ⾲
Frequency ( - )⢒ࡃ࡞ࡗࡓࡓࡵ࡜⪃࠼ࡽࢀࡿࠋ
4.

⤖ㄽ

Cantilever

100 nm0.5

0.2

㠃࡟ࢩࣜ࢝⢏Ꮚࡀ௜╔ࡍࡿࡇ࡜࡛ࠊ⾲㠃ࡀ

1 nN

ᇶᯈ⾲㠃ࢆࣉࣛࢬ࣐ฎ⌮ࡍࡿ࡜ 0.36s0.01

0
-0.5

0.15

-2
-2.5

0.05
0

࢞ࣛࢫᇶᯈ⾲㠃ࢆࠊࣉࣛࢬ࣐ࡸぶỈᛶࢩ

4.66s0.19 nN

-1
-1.5

0.1

-3

0

2

0

4

50

100

6

150

8

200

10

Adhesion force (nN)ࣜ࢝⢏Ꮚ࡛⾲㠃ຍᕤࡍࡿ࡜ࠊ࢝ࣅ⬊Ꮚ̿ᇶ㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉ

1

100 nm

0.5
0

0.4

-0.5
-1

0.2

-1.5

0.36s0.01 nN

1 nN

0.6

Frequency ( - )࡜ࡀศ࠿ࡗࡓࠋ

0.8

1 nN

࢝ࣅ⬊Ꮚࡢᇶᯈ࡬ࡢ௜╔ࢆᢚไ࡛ࡁࡿࡇD) Silica coatC) Non-coat (Plasma)Frequency ( - )ᯈ㛫࡟ാࡃ௜╔ຊࡀ๻ⓗ࡟ῶᑡࡍࡿࡓࡵࠊ

0.8
0
-0.5

0.4

-1
-1.5

0.2

0

0

2

-2.5

4

-3

0.04s0.02 nN-2-2ࣟࢭࢫᏛศ㔝㸧

100 nm

0.5

0.6

6

8

0
50
100
Adhesion
force(nN)150

10
200

0

0

2

-2.5

4

-3

6

8

0
50
100
Adhesion
force(nN)150

10200

Fig. 2 Spore probe and distributions of adhesive force between a spore and a glass.

−8−ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䞉◊✲ሗ࿌᭩㻌䠄␗✀ᮦᩱ䜢䜲䞁䜽⣲ᮦ䛸䛩䜛ከⰍⓗ䛺䠏䠠䝥䝸䞁䝍䝥䝻䝉䝇䛾ᵓ⠏䠅䛆◊✲┠ⓗ䛇㻌 䜰䝕䜱䝔䜱䝤䞉䝬䝙䝳䝣䜯䜽䝏䝱䝸䞁䜾䛿䚸௵ពᙧ≧䛾䠎ḟඖ᩿㠃䜢✚ᒙ䛩䜛䛣䛸䛷」
㞧ᙧ≧䛾䠏ḟඖᵓ㐀䜢๰䜚ୖ䛢䜛䝥䝻䝉䝇䛷䛒䜚䚸ษ๐䜔ᆺᢤ䛝䜢⏝䛔䜛ᚑ᮶ἲ䛷䛿ᡂ䛧ᚓ䛺䛔✵㛫ⓗ䛻ධ䜚⤌䜣䛰䝟䝍䞊䞁䛜ᑟධ䛷䛝䜛䚹䛣䜜䜎䛷䛻䚸䝺䞊䝄䜔㟁Ꮚ䝡䞊䝮䛾↷ᑕ䛻䜘䜚䚸㔠ᒓ⢊ᮎ䜢㒊ศⓗ䛻⁐⼥䛧จᅛ䛥䛫䜛⁐᥋ᢏ⾡ⓗ䛺᪉ᘧ䜔䚸䝉䝷䝭䝑䜽䝇⢏Ꮚ䛾ศᩓᾮయ䜢◳໬䛥䛫䜛⢊య↝⤖ⓗ䛺᪉ᘧ䛜⪃᱌䛥䜜䚸ᐇ⏝ᮦᩱ䛾䠏䠠䝥䝸䞁䝍䛸䛧䛶☜❧䛥䜜䛯䚹ᮏㄢ㢟䛷䛿䚸ྡ⛠䛸䛧䛶䛾䇾䝥䝸䞁䝍䇿䛛䜙㐃᝿䛥䜜䜛䚸ከⰍๅⓗ䛻␗✀ᮦᩱ䜢⏝䛔䛯㐀ᙧ䝥䝻䝉䝇䛾ᐇ㊶䛻䜐䛡䛶ྛ✀ྲྀ䜚⤌䜏䜢㐍䜑䛶䛔䜛䚹௒ᖺᗘ䛾άື䛷䛿䚸㔠ᒓ䞉䝉䝷䝭䝑䜽䝇䞉㧗ศᏊ䛺䛹䚸ᵝ䚻䛺␗✀ᮦᩱ䜢ᗄఱᏛⓗ䛻⤌䜏ྜ䜟䛫䚸⤌⧊䜔⤌ᡂ䛾」ྜⓗ䛺ศᕸ䜢ேᕤⓗ䛻ไᚚ䛧䛴䛴䚸❧యᡂᆺ䜢ᐇ⌧䛩䜛䝥䝻䝉䝇䛻䛴䛔䛶᳨ウ䛧䛯䚹䛆ᡂᯝᴫせ䛇㻌 ᮏᖺᗘ䛿䚸(1) 㔠ᒓ䛺䜙䜃䛻䝉䝷䝭䝑䜽〇㐀ᙧ≀䛻ෆໟ䛥䜜䜛ᵓ㐀Ḟ㝗䛾ᙳ㡪ホ౯䚸(2) ␗✀ᮦᩱ䜢」ྜ໬䛧䛯㐀ᙧ㒊ᮦ䛻䛚䛡䜛᥋ྜ⏺㠃䛾ほᐹ䛸ホ౯䚸(5) 㒊ᮦ୰䛻䛚䛡䜛␗✀ᮦᩱ䛾㓄⨨䛸ศᕸ䛻ᑐ䛩䜛タィᡭἲ䛾☜❧䚸௨ୖ䠏䝔䞊䝬䛻䛴䛔䛶⥅⥆ⓗ䛻ྲྀ䜚⤌䜐䛸䛸䜒䛻䚸(3) 䜰䞊䜽䜔䜺䝇䝣䝺䞊䝮䛺䛹㠀䝡䞊䝮⇕※䜢⏝䛔䛯㔠ᒓ䛺䜙䜃䛻䝉䝷䝭䝑䜽䝇㐀ᙧ䝥䝻䝉䝇䛾㛤ᣅ䚸(4) ㉸኱ᆺ㒊ᮦ䛾㧗㏿㐀ᙧ䛻ྥ䛡䛯⿦⨨㛤Ⓨ䜈䛾᝟ሗ཰㞟䛺䛹䛻ྲྀ䜚⤌䜣䛰䚹኱ᆺ䛾㔠ᒓ䛺䜙䜃䛻䝉䝷䝭䝑䜽㒊ᮦ䛾㐀ᙧ䛻䛒䛯䜚䚸ᒁᡤⓗ䛺⁐᥋䛺䜙䜃䛻↝⤖䛻䜘䜛᩿㠃䛾ᙧᡂ䜔✚ᒙ䛻䛚䛡䜛䚸ᚤ⣽䛺ட⿣䜔✵Ꮝ䛺䛹ᵓ㐀Ḟ㝗䛾ᢚไ䛻䛴䛔䛶᳨ウ䛜㐍䜑䜙䜜䛯䚹ᙜึ䛭䛾ᐇ⌧䛿ᴟ䜑䛶㞴䛧䛔䛸⪃䛘䜙䜜䛯䛜䚸ᵓ㐀Ḟ㝗䛾Ⓨ⏕䝯䜹䝙䝈䝮䜢᥈ồ䛩䜛䛸䛸䜒䛻䚸ᐇ⏝ⓗ䛺ᶵᲔⓗ≉ᛶ䛻ᑐ䛧䛶チᐜ䛧䛖䜛⠊ᅖ䜢つ᱁໬䛩䜛䛺䛹䚸⌧ᐇⓗ䛺ᑐᛂ䛻ྥ䛡䛶㐍ᒎ䛜ぢ䜙䜜䛯䚹୍㒊䛾◊✲ㄢ㢟䛻㛵䛧䛶䛿䚸ᾏእ䛾◊✲ᶵ㛵䛛䜙䜒◊✲⪅䛜ཧ⏬䛧䚸ᡤෆ䛾㐀ᙧ⿦⨨䜢ᐇ㝿䛻౑⏝䛧䛶ᡂᯝ䜢✚䜏㔜䛽䛯䚹ᮏไᗘ䛾㔜せㄢ㢟䛷䛒䜛ᅜ㝿ඹྠ㐃ᦠ◊✲䛾ᐇ᪋䛻ྥ䛡䛶䚸௒ᚋ䜒ᅜෆእ䛾◊✲ᶵ㛵䛸䛾㐃ᦠ䞉ᒎ㛤䜢ᅗ䜛ィ⏬䛷䛒䜛䚹㻌ࢧࢫ࣌ࣥࢩࣙࣥࣉࣛࢬ࣐⁐ᑕ᪋ᕤ⪏⎔ቃࢥ࣮ࢸ࢕ࣥࢢࡢ⓶⭷≉ᛶホ౯ᮾ໭኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ᑠᕝ࿴ὒ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ᱒ཎ⪽⚽㸯㸬ࡣࡌࡵ࡟
㏆ᖺࡢ⯟✵㟂せࡢቑຍ࡟ࡼࡾ㸪⎔ቃ㈇Ⲵཬࡧ┬࢚ࢿࣝࢠ࣮ࡢほⅬ࠿ࡽ⯟✵ᶵ࢚ࣥࢪࣥࡢప⇞㈝໬ࡀồࡵࡽࢀ࡚࠸ࡿ㸬ࡇࡢ㐩ᡂ࡟ࡣ㧗㔞໬ࡀᚲせ࡛࠶ࡿ㸬⌧ᅾ࢚ࣥࢪࣥ㧗㒊ᮦࡢ෭༷✵Ẽ㔞๐ῶ࡜࢚ࣥࢪࣥᮏయࡢ㍍

㒊ࡢࢱ࣮ࣅࣥ⩼࡟ࡣ Ni ᇶ㉸ྜ㔠ࡀ⏝࠸ࡽࢀ࡚࠸ࡿࡀ㸪ḟୡ௦⯟✵ᶵ࢚ࣥࢪ࡛ࣥࡣࡉࡽ࡞ࡿ㧗ຠ⋡໬ࡀồࡵࡽࢀ࡚࠾ࡾ㸪ᚑ᮶ࡢ㔠ᒓᮦᩱ࡟ẚ࡭ᐦᗘࡀ⣙ 3 ศࡢ㸯㸪࠿ࡘ⪏⇕ᛶࡢ㧗࠸ᮦᩱ࡜ࡋ࡚ SiC ⣔ࢭ࣑ࣛࢵࢡᇶ」ྜᮦᩱࡢ㐺⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋᐇ⏝໬࡟࠶ࡓࡗ࡚ࡣ㸪㧗Ỉ⵨Ẽ⎔ቃୗ࡛ࡢ㓟໬࡟ࡼࡿ㒊ᮦࡢῶ⫗ࡀㄢ㢟࡜࡞ࡿ㸬ࡋࡓࡀࡗ࡚ࡇࡢࡼ࠺࡞ຎ໬ᦆയ࠿ࡽ㒊ᮦࢆᏲࡾ㸪ಙ㢗ᛶࢆ☜ಖࡍࡿࡓࡵ࡟ࡣ㸪⪏⎔ቃࢥ࣮ࢸ࢕ࣥࢢ㸦EBC: Environmental Barrier Coatings㸧ࡢ㐺⏝ࡀᚲせ୙ྍḞ࡛࠶ࡿ㸬EBC
ࡣ⎔ቃ㐽ⶸᛶྥୖࡢࡓࡵ࡟㧗Ỉ⵨Ẽ⎔ቃୗ࡛Ᏻᐃ࠿ࡘ⦓ᐦ࡞⭷࡛࠶ࡿᚲせࡀ࠶ࡿࡀ㸪ᚑ᮶ἲ࡛ࡣᡂ⭷㏿ᗘࡸ⦓ᐦࡉࡢⅬ࡛ㄢ㢟ࡀ࠶ࡗࡓ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪᪂ࡓ࡞ EBC ࡢᡂ⭷ἲ࡜ࡋ࡚ࢧࢫ࣌ࣥࢩࣙࣥࣉࣛࢬ࣐⁐ᑕ㸦SPS㸧ࢆᥦ᱌ࡍࡿ㸬SPS ࡛ࡣ㸪⢊ᮎᮦᩱࢆᠱ⃮ᾮ㸦ࢧࢫ࣌ࣥࢩࣙࣥ㸧࡜ࡋ࡚౪⤥ࡍࡿࡇ࡜࡛㸪ᚑ᮶ࡢࣉࣛࢬ࣐⁐ᑕ࡛ࡣ୙ྍ⬟࡛࠶ࡗࡓࢧࣈ࣑ࢡ
࣮ࣟࣥ࢜ࢲ࣮ࡢ⢏Ꮚࡢ౪⤥ࡀྍ⬟࡛࠶ࡾ㸪ࡼࡾ⦓ᐦ࡞⭷ࡢᡂ⭷ࡀྍ⬟࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ᮏ ◊ ✲ ࡛ ࡣ 㸪 ᚑ ᮶ ࡢ ௦ ⾲ ⓗ ࡞ EBC ᮦ ࡛ ࠶ ࡿ Mullite (3Al2O3-2SiO2) ࡜ BSAS(%D26U2$O26L2) ࡢ SPS ⓶⭷࡜ᚑ᮶ࡢ኱Ẽᅽࣉࣛࢬ࣐⁐ᑕ㸦APS㸧⓶⭷࡟㛵ࡋ࡚㸪㧗㓟໬ヨ㦂ཬࡧ࣑ࢡࣟ⤌⧊ほᐹ㸪◳ࡉヨ㦂࡟ࡼࡿᶵᲔⓗ≉ᛶホ౯ࢆ⾜࠸㸪SPS ᪋ᕤ EBC ࡢ㐺⏝ྍ⬟ᛶࢆ᳨ウࡋࡓ㸬㸰㸬ᐇ㦂᪉ἲ
ᮏ◊✲࡛ࡣ㸪ࢺࢵࣉࢥ࣮ࢺᮦ࡟ Mullite ࠾ࡼࡧ BSAS㸪࣎ࣥࢻࢥ࣮ࢺ࡟ Si㸪ᇶᮦ࡟ࡣ SiC
ࢆ⏝࠸ࡓ EBC ࢆ⏝࠸ࡓ㸬ࢺࢵࣉࢥ࣮ࢺࡢ᪋ᕤ࡟ࡣ SPS ࠾ࡼࡧẚ㍑ᮦ࡜ࡋ࡚ APS ࡢ 2 ✀㢮ࢆ㸪࣎ࣥࢻࢥ࣮ࢺࡢ᪋ᕤ࡟ࡣῶᅽࣉࣛࢬ࣐⁐ᑕ㸦LPPS㸧ࢆࡑࢀࡒࢀ⏝࠸ࡓ㸬ᚓࡽࢀࡓ㸪EBC ヨ㦂∦࡟ᑐࡋ㸪㧗

㓟໬ヨ㦂ࢆᐇ᪋ࡋࡓ㸬ࡑࡢᚋ SEM ࡟ࡼࡿ࣑ࢡࣟ⤌⧊ほᐹࢆᐇ᪋ࡋࡓ㸬㧗㓟໬ヨ㦂ࡣ኱Ẽୗ 1300Υ࡛ 100 ᫬㛫⾜ࡗࡓ㸬㸱㸬ᐇ㦂⤖ᯝ
Mullite-APS ࠾ࡼࡧ SPS ⓶⭷ࡢ᩿㠃⤌⧊ほᐹ⤖ᯝࢆ Fig.1 ࡟㸪BSAS-APS ࠾ࡼࡧ SPS ⓶⭷ࡢ᩿㠃⤌⧊ほᐹ⤖ᯝࢆ Fig.2 ࡟㸪ࡑࢀࡒࢀ♧ࡍ㸬Mullite ࡢ As-sprayed ⓶⭷࡟㛵ࡋ࡚ࡣ㸪
Fig.1(a)−9−࠾ࡼࡧ (b)ࡼࡾ㸪 APS ⓶⭷࡟ẚ࡭ SPS ⓶⭷ࡢ᪉ࡀẼᏍࢧ࢖ࢬࡣᑠࡉࡃ⦓ᐦ࡞⭷ࡀᙧᡂࡉࢀ
࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡋ࠿ࡋ BSAS ⓶⭷࡟㛵ࡋ࡚ࡣ㸪 Fig.2(a) ࠾ࡼࡧ (b)ࡼࡾ㸪APS⓶⭷࡟ẚ࡭ẼᏍࢧ࢖ࢬࡀᑠࡉ࠸ࡶࡢࡢ㸪ከࡃࡢᚤᑠẼᏍࡀ☜ㄆࡉࢀࡓ㸬Fig.1(c) ࠾ࡼࡧ (d)ࡼࡾ኱Ẽୗ 1300Υ100 ᫬㛫ࡢ㓟໬ヨ㦂ᚋ࡛ࡣ㸪Mullite-APS ⓶⭷࡟㛵ࡋ࡚㸪኱ࡁ࡞ኚ໬ࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓࡀ㸪୍᪉࡛ SPS ⓶⭷࡟㛵ࡋ࡚ࡣẼᏍ࠾ࡼࡧᒙ≧ᯒฟ≀ࡢ㢧ⴭ࡞ቑຍࡀ☜ㄆࡉࢀࡓ㸬Mullite ࡣᗘ࡟ࡼࡗ࡚ Al2O3 ࡜ SiO2 ࡢᵓᡂẚࡀኚ໬ࡍࡿࡇ࡜

ࡀ▱ࡽࢀ࡚࠾ࡾ㸪ࡇࡢᒙ≧ᯒฟ≀ࡣవ๫ศ࡜ࡋ࡚ᯒฟࡋࡓ Ș- Al2O3 ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࡢࡼ࠺࡟᪋ᕤࣉࣟࢭࢫ࡛኱ࡁ࡞㐪࠸ࡀ☜ㄆࡉࢀࡓ⌮⏤ࡣ㸪౪⤥⢏Ꮚࡢ⢏ᚄࡢ㐪࠸࡟ࡼࡿࡶࡢ࡛㸪᪋ᕤࡍࡿ㝿࡟ 1 ࡘ㸯ࡘࡢ⢏Ꮚ࡬ࡢධ⇕㔞࠾ࡼࡧ෭༷㏿ᗘࡀ␗࡞ࡗࡓࡓࡵ࡛࠶ࡿ࡜
⪃࠼ࡽࢀࡿ㸬ࡋࡓࡀࡗ࡚௒ᚋࡣ㸪⁐ᑕࡍࡿ㝿࡟ᇶᮦࢆຍ⇕ࡍࡿ࡞࡝ࡢᕤኵࢆຍ࠼ࡿࡇ࡜࡛㸪ࡇࡢࡼ࠺࡞⌧㇟ࢆᢚไࡍࡿᚲせࡀ࠶ࡿ㸬୍᪉࡛ BSAS ⓶⭷࡟㛵ࡋ࡚ࡣ㸪As-sprayed ࡟࠾࠸࡚⓶⭷⤌⧊ࡢ኱ࡁ࡞㐪࠸ࡀ☜ㄆࡉࢀࡓࡀ㸪㓟໬ヨ㦂ᚋ࡛ࡣ㸪ẼᏍࢧ࢖ࢬࡢቑຍࡣ☜ㄆࡉࢀࡓࡶࡢࡢ㸪ᚤᑠࡁ⿣ࡀᾘኻࡋ⦓ᐦ࡞⤌⧊ࡢᙧᡂࡀ☜ㄆࡉࢀࡓ㸬ࡇࢀࡣ BSAS ࡢᮦᩱ≉ᛶ࡟ࡼࡿࡶࡢ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࡓࡵ㸪BSAS ࡟㛵ࡋ࡚ࡣ APS㸪SPS ࡢ᪋ᕤ㛫࡟ࡼࡿ኱ࡁ࡞㐪࠸ࡣ࡞࠸ࡶࡢ࡜ุ᩿ࡍࡿ㸬Fig.1 Mullite ⓶⭷ࡢ᩿㠃 SEM ほᐹ౛   Fig.2 BSAS ⓶⭷ࡢ᩿㠃 SEM ほᐹ౛(a) APS-As sprayed, (b) SPS-As sprayed, (c)APS-after 1300oC 100h, (d) SPS-after 1300oC 100h.
㸲㸬ࡲ࡜ࡵᮏ◊✲࡛ᚓࡽࢀࡓ⤖ᯝࢆ௨ୗ࡟ࡲ࡜ࡵࡿ㸬
1)

Mullite ⓶⭷࡟㛵ࡋ࡚ࡣ㸪As-sprayed ࡟࠾࠸࡚ SPS ⓶⭷ࡢ᪉ࡀ⦓ᐦ࡛࠶ࡗࡓ㸬2)㓟໬ヨ㦂ᚋ࡟࠾࠸࡚㸪BSAS ⓶⭷࡟㛵ࡋ࡚ࡣ᪋ᕤἲ࡟ࡼࡿ㐪࠸ࡣㄆࡵࡽࢀ࡞࠿ࡗࡓࡀ㸪
Mullite 㛵ࡋ࡚ࡣ㸪᪋ᕤ᫬ࡢධ⇕㔞㸪෭༷㏿ᗘ࡟㉳ᅉࡍࡿ࡜⪃࠼ࡽࢀࡿ㐪࠸ࡀ☜ㄆࡉࢀ㸪⁐ᑕ᫬࡟ᇶᮦࢆຍ⇕ࡍࡿ࡞࡝ࡢ᪋ᕤ᮲௳᭱㐺໬ࡀᚲせ࡛࠶ࡿ㸬3)

Mullite ⓶⭷ࡢ㛵ࡋ࡚ࡣ㸪As-sprayed ࡟࠾࠸࡚ࡣ㸪APS ࠾ࡼࡧ SPS ࡛኱ࡁ࡞㐪࠸ࡣ☜ㄆࡉࢀࡎ㸪SPS ⓶⭷࡟࠾࠸࡚ APS ࡜ྠᵝࡢᶵᲔⓗ≉ᛶ⥔ᣢࡢྍ⬟ᛶࡀ♧၀ࡉࢀࡓ㸬㸦ඹྠ◊✲ศ㔝㸸ࢼࣀ࣭࣐࢖ࢡࣟᵓ㐀ไᚚࣉࣟࢭࢫᏛศ㔝㸧− 10 −

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5īvû¬×Y. Koizumi, A. Okazaki, A. Chiba, T. Kato, A. Takezawa, Additive Manufacturing 12 (2016) 305-313.
X.Ding, Y. Koizumi, A. Chiba, Proc .the 13th Int. Symp. Superalloys (2016) 367-373).

− 11 −

Fig. 1. EBSD-IPF orientation maps of the cross-section of
single-track bead produced by electron beam scanned onplates of Ni-based superalloy at beam power of 1000 W andscanning speed of 100 mm/s under different conditions: (a)without preheating, (b) with preheating at 950 °C.

Fig. 2. EBSD-IPF orientation maps of the cross-section of wallsof Ni-based superalloy produced by electron beam melting withdifferent beam power (P) and scanning velocity (V) both withpreheating at 950 °C. (a) P = 200 W, V = 200 mm/s, (b) P =1000 W, V = 1000 mm/s.

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౨๼୉ָ୉ָӅ޽ָ‫ڂݜ‬Ռ໼ଞ௜೯ɼ٢ஓ‫ࢢܕ‬ɼઔ࡜ ྆୉ࡗ୉ָં߻Ռָ‫ॶڂݜ‬‫૳ݬۇ‬ऴ̏ɿͺͣΌͶ ҫྏ༽αώϩφέϫϞ߻ۜͺ༑Ηͪ‫ౕک‬ɼଳৱ੓ɼଳຐ໥੓Νࣖͤ͞ͳ͖Δɼ੖‫֐ܙ‬Ռ͕Γ;ࣅՌ྘ҮͲ༽͏ΔΗͱ͏Ζɽຌ߻ۜͶ୺Կ෼Ν‫༙ͦ͠؜‬Ζ͞ͳͲຐ໥੓ͺ޴৏ͤΖ͗ɼͨ͹Ҳ๏ͲԈ੓ͺ‫ݰ‬ঙͤΖɽ‫୺༙؜‬ોྖ͗ఁ͏৖߻Ͷͺ୺Կ෼ͺଚࡑ͢͵͏͗ɼKFS ߑଆΝ༙ͤΖБ૮͗༻༧‫࣎ݽڿ‬Ͷ‫ܙ‬੔ͤΖ৖߻͍͗Ζɽ͞͹Γ͑͵୺Կ෼ΏБ૮͹ଚࡑͶΓΕຌ߻ۜͺߙ͚੮͏ಝ੓Νࣖͤɽ͞ΗΉͲͶஸंΔ͹‫ڂݜ‬ήϩʖϕͺɼαώϩφέϫϞ߻ۜͶ஢ોΝశՅͤΖ͞ͳͲԈ੓͗޴৏ͤΖ͞ͳΏɼϪʖδ੷૜ଆ‫ܙ‬ͶΓΕαώϩφέϫϞ߻ۜΝଆ‫ͤܙ‬Ζ͞ͳͲຌ߻ۜ͹Ԉ੓͗޴৏ͤΖ͞ͳΝ‫ݡ‬ड़͢ͱ͏Ζ  ɽຌ‫Ͳڂݜ‬ͺɼ஢ોΝశՅͪ͢αώϩφ߻ۜฆ຦Νࡠ੣͢ɼ͞ΗΝ༽͏ͱ੷૜ଆ‫ܙ‬๑ͶΓΕࡠ੣ͤΖ͞ͳͲɼΓΕ߶͏ϪϗϩͲ͹‫ͳౕک‬Ԉ੓͹ώϧϱηΝಚΖ͞ͳΝ໪దͳͪ͢ɽ
̐ɿࣰ‫ݩ‬๏๑ ਭΠφϜ΢θ๑ͶΓΕࡠ੣ͪ͢αώϩφέϫϞ߻ۜʤ&R&U0R1ʥΝ६ඍͪ͢ɽ
͞͹ฆ຦Ͷଲ͢ɼૺࠬ‫ܗ‬ుࢢ‫ݨ‬ඏ‫ ں‬6(0 ͶΓΖ؏ࡱɼ; તյ઄ ;5' ͶΓΖ૮ಋఈͳɼ೦
ఽ಍๑ͶΓΖ‫ݫ‬ો෾ੵΝߨͮͪɽϪʖδ੷૜ଆ‫ܙ‬Ͷͺɼ୺࢐ΪηϪʖδΝ౧ࡎͪ͢ (26 ऀ(26,170;WHQGHG Ν࢘༽ͪ͢ɽଆ‫ܙ‬ͺ஢ોฉҕ‫ـ‬Ͷͱߨ͏ɼϪʖδड़ྙͺ :ɼύροϱήֶؔͺ PP ͖Δ PPɼ੷૜޲͠ͺ ̾̾ͳͪ͢ɽଆ‫ࢾܙ‬ྋͺΰʖζ෨ௗ͠ ̾̾ɼ௜‫̑ܚ‬PP ͹ξϱϗϩ‫ܗ‬Ӏ௃ࢾ‫ݩ‬ฤͲ͍ΖɽӀ௃ࢾ‫ݩ‬ͺ࣪ԻͶͱॵ‫ͥͽغ‬Ίଐౕ [ ͳͪ͢ɽ
̑ɿ݃Վ͕Γ;ߡࡱ ਦ̏ͶਭΠφϜ΢θ๑ͶΓΕࡠ੣ͪ͢αώϩφέϫϞ߻ۜฆ຦͹֐؏ࣺਇΝࣖͤɽԃ‫ܙ‬͖ΔΚ͖ͥͶ࿬Ξͫବԃ‫ܙ‬Νࣖ͢ͱ͕Εɼ͖ͯන໚Ͷࠉ͏αϱφϧηφΝࣖͤ෨෾͗ଚࡑ
͢ͱ͏Ζ͞ͳ͗Κ͖Ζɽ('; ͶΓΖන໚͹‫ݫ‬ોϜρϒϱήΝߨͮͪͳ͞ΘɼεϨαϱͳ࢐ો͗ೳԿ͢ͱ͏Ζ෨෾͗؏ࡱ͠ΗͪɽεϨαϱͺαώϩφέϫϞ߻ۜͶඏྖశՅ͠Ηͱ͏
Ζ‫ݫ‬ોͲ͍Ζ͞ͳ͖ΔɼਭΠφϜ΢θգఖͶ͕͏ͱεϨαϱ͗ਭͶΓΕ࢐Կ͠Ηͪ݃ՎͲ
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๏޴Ͷଲ͢ͱฑߨ͵໚Ͷ͕͏ͱૌ৭؏ࡱΝߨͮͪ݃Վɼથңয়͹ૌ৭͗‫ܙ‬੔͠Ηͱ͏ͪ͞
ͳ͖Δɼιϩয়υϱχϧ΢φͺ஬য়Ͳ͍Εɼ੷૜๏޴ͶԌͮͱ৵ௗ͢ͱ͏Ζ͞ͳ͗Κ͖ͮͪɽ('; ͶΓΖ‫ݫ‬ો෾ੵ͹݃Վɼιϩয়υϱχϧ΢φͶͺ &U Ώ 0R ͗ยੵ͢ͱ͏ͪ͗ɼV૮͹‫ܙ‬੔Ͷͯ͏ͱͺ֮೟͠Η͵͖ͮͪɽ ੷૜ଆ‫ܙ‬ର͹Ӏ௃ࢾ‫ݩ‬Νߨͮͪ݃Վɼ৵;ͺΦϋϩάʖືౕ͗ଁՅͤΖͳଁՅ͢ɼ࠹୉Ͳ
̐̎ˍΝ௔͓Ζ஍Νࣖͤ͞ͳ͗Κ͖ͮͪɽ͞͹͞ͳͺɼఁ͏ΦϋϩάʖືౕͲͺଆ‫ܙ‬ରͶ‫ـ‬޺͗࢔ཻ͢ɼͨ͹Ӫ‫ڻ‬ͶΓΕԈ੓͗ఁԾͪ͢΍͹ͳਬ଎͠ΗΖɽ͖͢͢͵͗Δɼଳྙ
ͺ ,62 Ͳ‫و‬ఈ͠ΗΖ஍ʤ03DʥΓΕ΍޴৏͢ͱ͕Εʤ 03Dʥɼ‫ͳౕک‬Ԉ੓Ͷ༑ΗΖαώϩφέϫϞ߻ۜΝ੷૜ଆ‫ܙ‬๑ͶΓΕࡠ੣Ն೵Ͳ͍Ζ͞ͳ͗Κ͖ͮͪɽ

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1. ┠ⓗࣜࢳ࣒࢘஧ḟ㟁ụࡢᏳ඲ᛶྥୖ࠾ࡼࡧ౑⏝ྍ⬟ ᗘᇦࡢᣑ኱ࢆ┠ⓗ࡟ࠊ㟁ゎᾮࢆ୙⇞ᛶࡢᅛయ㟁ゎ㉁࡟⨨ࡁ᥮࠼ࡓ඲
ᅛయࣜࢳ࣒࢘஧ḟ㟁ụࡢ㛤Ⓨࢆ㐍ࡵࡓࠋ㟁ụࡢ඘ᨺ㟁཯ᛂࡣࠊ㟁ゎ㉁࡜㟁ᴟά≀㉁ࡢ⏺㠃࡛㐍⾜ࡍࡿࠋࡋࡓࡀࡗ࡚ࠊ㟁ụෆ࡟ከࡃࡢ㟁ゎ㉁/㟁ᴟά≀㉁⏺㠃ࢆᙧᡂࡍࡿࡇ࡜ࡀồࡵࡽࢀࡿࠋࡋ࠿ࡋࠊᅛయ㟁ゎ㉁ࡣ㟁ゎᾮ࡜␗࡞ࡾࠊὶືᛶࡀ࡞
࠸ࠋࡑࡢࡓࡵࠊከᏍ㉁࡞㟁ᴟࡢෆ㒊࡬ᾐ㏱ࡏࡎࠊ⏺㠃ᙧᡂࡀᅔ㞴࡛࠶ࡿࠋᡃࠎࡣࠊࡇࡢၥ㢟ࢆゎỴࡍࡿ᪉ἲ࡜ࡋ࡚ࠊග
㐀ᆺἲࢆ⏝࠸ࡓᅛయ㟁ゎ㉁ࡢᵓ㐀໬࡟ྲྀࡾ⤌ࢇ࡛ࡁࡓࠋࡇࢀࡲ࡛ࡢ᳨ウ࡛ࠊᵓ㐀໬࡟ࡼࡾ㟁ゎ㉁/㟁ᴟά≀㉁⏺㠃ࡀ୕ḟඖⓗ࡟ቑຍࡋࠊ඲ᅛయࣜࢳ࣒࢘஧ḟ㟁ụࡢෆ㒊᢬ᢠࢆపῶ࡛ࡁࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋ࡚ࡁࡓࠋᮏඹྠ◊✲࡛ࡣࠊ㔠ᒓࣜࢳ࣒࢘ࡸ㧗㟁఩ṇᴟ࡟ᑐࡋ࡚Ᏻᐃ࡞ࢪࣝࢥࢽ࢔⣔ࢭ࣑ࣛࢵࢡࢫ㟁ゎ㉁ࡢ୍✀࡛࠶ࡿ Li6.25Al0.25La3Zr2O12 ࢆᑐ㇟࡟ᵓ㐀యࡢస〇ࢆ᳨ウࡋࡓࠋᮏᖺᗘࡣ≉࡟ࠊ㧗ฟຊࡢ⣸እ⥺࣮ࣞࢨࢆ⏝࠸ࠊ㐀ᙧ࣭⬺⬡࣭↝⤖ࢆ୍ᗘ࡟⾜࠺ᡭἲࡢ᳨ウࢆ⾜ࡗࡓࠋ2. ᐇ㦂ᡭἲ ┠ⓗ࡜ࡍࡿᵓ㐀యࡢタィࡣᅗ 1 ࡢ࡜࠾ࡾ࡛࠶ࡿࠋ㈇ᴟ࡟⏝࠸ࡿ Li 㔠ᒓࡣᰂ㌾ᛶࡀ࠶ࡾࠊᅛయ㟁ゎ㉁࡜ࡢ⏺㠃ᙧᡂࡀẚ
㍑ⓗᐜ࡛᫆࠶ࡿࡓࡵࠊ㈇ᴟഃࡢᵓ㐀ࡣᖹࡽ࡞ࡲࡲ࡜ࡋࠊṇᴟഃࡢࡳ࡟Ꮝࢆ᭷ࡍࡿタィ࡜ࡋࡓࠋLi6.25Al0.25La3Zr2O12 ⢏Ꮚ࡟ග◳໬ᛶᶞ⬡ࢆΰྜࡋ࡚ࢫ࣮ࣛࣜࢆㄪ〇ࡋࠊᇶᯈୖ࡟ሬᕤࡋ࡚ගᙉᗘࢆ 700 mW ࡜ࡋࡓྛ᮲௳࡛ග㐀ᙧ(㐀ᙧ࣭⬺⬡࣭↝⤖)ࢆ᳨ウࡋࡓࠋࡲࡓࠋ㐀ᙧࡋࡓᅛయ㟁ゎ㉁⭷ࡢᏍ࡟ṇᴟᮦᩱ࡛࠶ࡿ LiCoO2 ࢆ඘ሸࡋࠊ཯ᑐ㠃࡟ Li 㔠ᒓࢆ㈞ࡾ௜ࡅࠊ
㟁ụ࡜ࡋ࡚ᶵ⬟ࡍࡿ࠿ࢆ☜ㄆࡋࡓࠋ3. ⤖ᯝ
࣮ࣞࢨࡢ↔Ⅼᚄࢆ 50 μm ࠶ࡿ࠸ࡣ 100 μmࠊ㉮ᰝ㏿ᗘࢆ 1.0 mm sec-1 ࠶ࡿ࠸ࡣ 2.0 mm sec-1 ࡜ࡋ࡚ග㐀ᆺࢆᐇ᪋ࡋࡓࠋ
⤖ᯝࢆᅗ 2 ࡟♧ࡍࠋᙜึࡢ᳨ウ࡛ࡣᇶᯈ࡟࢞ࣛࢫᯈࢆࡑࡢࡲࡲ⏝࠸࡚࠸ࡓࡀࠊ㐀ᙧࡋࡓヨᩱ࡟ Si ࡀΰධࡍࡿࡇ࡜ࡀุ᫂
ࡋࡓࡓࡵࠊ࢞ࣛࢫᇶᯈୖ࡟ Li6.25Al0.25La3Zr2O12 ⢏Ꮚࢆྵࡴᶞ⬡ᒙࢆ࠶ࡽ࠿ࡌࡵᙧᡂࡋࠊࡑࡢୖ࡛ග㐀ᙧࢆ⾜࠺ࡇ࡜࡛୙⣧≀ࡢΰྜࢆ㜵࠸ࡔࠋ࣮ࣞࢨࡢ㉮ᰝ㏿ᗘࡀ 1.0 mm sec-1 ࡢሙྜࡣࠊ↔Ⅼᚄࡢ኱ᑠ࡟࠿࠿ࢃࡽࡎࠊ㐀ᙧࡣ࡛ࡁࡿࡶ
ࡢࡢ⦓ᐦᛶࡀᝏࡃࠊ༑ศ࡟↝⤖ࡀ㐍⾜ࡋ࡚࠸࡞࠸ࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ୍᪉ࠊ㉮ᰝ㏿ᗘࢆ 2.0 mm sec-1 ࡟ቑຍࡍࡿ࡜ࠊ↔
Ⅼᚄࡀ 100 μm ࡢሙྜ࡟ẚ㍑ⓗⰋዲ࡞⦓ᐦᛶࡀᚓࡽࢀࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡇࡢ࡜ࡁ㐀ᙧࡉࢀࡓᵓ㐀యࡣࠊ๭ࢀࡸḞࡅࡶㄆࡵࡽ࡞࠿ࡗࡓࠋ
ᮏ᮲௳࡛ヨసࡋࡓ Li6.25Al0.25La3Zr2O12 ᵓ㐀యࢆ⏝࠸࡚ࠊ඲ᅛయࣜࢳ࣒࢘஧ḟ㟁ụࢆヨసࡋࡓ࡜ࡇࢁࠊ
2.8 V ࡢ㉳㟁ຊࡀᚓࡽࢀࡓࠋ඘ᨺ㟁ヨ㦂࡟ࡘ࠸࡚ࡣ௒ᚋᐇ᪋ࡍࡿࡀࠊṇᴟ࡜㈇ᴟࡢ▷⤡ࡀ࡞ࡃࠊ࠿ࡘస〇ࡋࡓᵓ㐀యࡀࣜࢳ࣒࢘࢖࢜ࣥఏᑟయ࡜ࡋ࡚ၥ㢟࡞ࡃᶵ⬟ࡍࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ
4. ⪃ᐹ࡜⤖ㄽ 㧗ฟຊࡢ⣸እ⥺࣮ࣞࢨࢆ⏝࠸ࠊ㐀ᙧ࣭⬺⬡࣭↝⤖ࢆ୍ᗘ࡟⾜࠺ග㐀ᆺἲ࡟ࡼࡾࠊᅛయ㟁ゎ㉁ Li6.25Al0.25La3Zr2O12 ࡢᵓ㐀యస〇ࢆ᳨ウࡋࡓࠋග㐀ᆺ᮲௳࡜ࡋ࡚࣮ࣞࢨࡢ↔Ⅼᚄ࡜㉮ᰝ㏿ᗘࢆኚ໬ࡉࡏ᳨࡚ウࡋࡓ࡜ࡇࢁࠊ↔Ⅼᚄࡀ኱ࡁࡃ㉮ᰝ㏿ᗘࡀ㏿࠸᮲௳࡛ᵓ㐀యࡢ↝⤖ࡀᆒ୍࡟࡞ࡿഴྥࡀㄆࡵࡽࢀࡓࠋࡇࢀࡣ࣮ࣞࢨࡢ࢚ࢿࣝࢠ࣮ࡀẚ㍑ⓗศᩓࡍࡿ᮲௳࡛ࡢ㐀ᙧࡀ᭷ຠ࡞ࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋ⌧ᅾࠊᮏ⤖ᯝ࡟ᇶ࡙ࡁࠊࡉࡽ࡞ࡿ᮲௳ࡢ᭱㐺໬ࢆ㐍ࡵ࡚࠸ࡿࠋ
ࡲࡓࠊග㐀ᆺࡋࡓ Li6.25Al0.25La3Zr2O12 ᵓ㐀య࡟ṇᴟ࡜㈇ᴟࢆ᥋ྜࡋ࡚඲ᅛయࣜࢳ࣒࢘஧ḟ㟁ụ໬ࢆヨࡳࡓ࡜ࡇࢁࠊ
㉳㟁ຊ࡜ࡋ࡚ጇᙜ࡞್ࡀᚓࡽࢀࡓࡇ࡜࠿ࡽࠊ㐀ᙧయࡀࣜࢳ࣒࢘࢖࢜ࣥఏᑟయ࡜ࡋ࡚ᶵ⬟ࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ௒ᚋࡣࠊ㐀ᙧయࡢ⤌ᡂ࡜⤖ᬗᵓ㐀ࢆヲࡋࡃㄪ࡭ࠊᚲせ࡟ᛂࡌ࡚ࢫ࣮ࣛࣜ࡟⤌ᡂㄪᩚࡢࡓࡵࡢຓ๣ࢆῧຍࡍࡿ
࡞࡝ࠊࡼࡾලయⓗ࡞᳨ウࢆ㐍ࡵࡿࠋ− 19 −

Fig. 1 ┠ⓗ࡜ࡍࡿ Li6.25Al0.25La3Zr2O12 ᵓ㐀యࡢᴫ␎ᅗ (Ꮝࢧ࢖ࢬ: 200 μm x 200 μm x 200 μmࠊᗏ㠃ཌࡳ: 50 μm).

(a)

(b)

Fig. 2 ྛ᮲௳࡛ග㐀ᆺࡉࢀࡓ Li6.25Al0.25La3Zr2O12 ᵓ㐀య.
(a) 㐀ᙧࢆ⾜࠺ᇶᯈࡢᴫほࠊ(b) 㐀ᙧయࡢእほ (ୖẁ: ᵓ㐀యࡢ඲యീࠊୗẁ: ᵓ㐀యࡢ↝⤖≧ែ)(ඹྠ◊✲ศ㔝㸸ࢼࣀ࣭࣐࢖ࢡࣟᵓ㐀ไᚚࣉࣟࢭࢫᏛศ㔝)− 20 −

ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䞉◊✲ሗ࿌᭩㻌䠄䝡䝑䜾䝕䞊䝍䜢㥑౑䛧䛯ḟୡ௦㧗ရ㉁䝺䞊䝄⁐᥋ᢏ⾡䛾◊✲䠅䛆◊✲┠ⓗ䛇㻌 䝺䞊䝄ຍᕤ䜢ྲྀ䜚ᕳ䛟䜒䛾䛵䛟䜚䛾⎔ቃ䛿䚸⎔ቃၥ㢟䜔䜾䝻䞊䝞䝹໬䛻䜘䛳䛶๻ⓗ䛻ኚ໬䛧䚸Industry4.0䚸䝡䝑䜾䝕䞊䝍䚸ேᕤ▱⬟䠄AI䠅➼䛾᪂₻ὶ䛻䜘䜛ኚ໬䜒ண᝿䛥䜜䜛䚹௒ᚋ䛿䚸䝺䞊䝄䛸≀㉁䛾┦஫స⏝䛻䝣䜷䞊䜹䝇䛧䚸ᚑ᮶䛾⇕ⓗ䛺స⏝䛾ຠ⋡ⓗ䛺฼⏝䛰䛡䛷䛺䛟䚸≀⌮䞉໬Ꮫⓗస⏝䜢ྲྀ䜚㎸䜣䛰㠉᪂ⓗ䛺ຍᕤ䝥䝻䝉䝇䛾◊✲㛤Ⓨ䛜㔜せ䛸䛺䜛䚹ᮏ◊✲䛷䛿䚸ḟୡ௦㧗ရ㉁䝺䞊䝄⁐᥋ᢏ⾡☜❧䛾䛯䜑䛻䚸䝺䞊䝄⁐᥋䞉᥋ྜ䛻䛚䛡䜛䐟‫‮‬ὶ䜜➼䛾ᇶ♏⌧㇟䛾ィ䝕䞊䝍䚸䐠〇㐀⌧ሙ䛻ᚲせ䛺⟶⌮್䠄⢭ᗘ䞉ᑬᗘ䠅䚸䐡ຍᕤ䝥䝻䝉䝇䛾䝰䝙䝍䝸䞁䜾䝕䞊䝍䚸䐢ᩘ್ィ⟬䛻䜘䜛≀⌮ⓗ䞉໬Ꮫⓗ䛺ᩘ್䚸䐣ㄽᩥ䞉▱㈈➼䛾ᩥ⊩䝕䞊䝍➼䛾ᵝ䚻䛺⭾኱䛺䝕䞊䝍䠄䝡䝑䜾䝕䞊䝍䠅䜢ᐇ㦂䚸ᩘ್ィ⟬䚸ᩥ⊩ㄪᰝ䛻䜘䛳䛶཰㞟䛧䚸䝕䞊䝍䝬䜲䝙䞁䜾➼䛾ศᯒ䞉ゎᯒ䜢⾜䛔䚸᪂䛯䛺◊✲䛾᪉ྥᛶ䜢Ⓨぢ䛧䚸䜘䜚ᗈ䛟ᛂ⏝ᒎ㛤䛷䛝䜛◊✲䜢᥈ồ䛩䜛䚹䛆ᡂᯝᴫせ䛇㻌 ᮏᖺᗘ䛿䚸FS䠄䝣䜱䞊䝆䝡䝸䝔䜱䝇䝍䝕䜱䠅䛸䛧䛶䚸㏆ᖺヰ㢟䛷䛒䜛䝡䝑䜾䝕䞊䝍ᢏ⾡䛻䛴䛔䛶▱䜚䚸ඛ䛻㏙䜉䛯䝺䞊䝄⁐᥋䞉᥋ྜ䛻㛵䛩䜛⭾኱䛺䝕䞊䝍䜢䛹䛾䜘䛖䛻ྲྀ⤌䜐䜉䛝䛛䜢ᑓ㛛ᐙ䠄኱㜰኱Ꮫ㻌 㛗㇂ᕝᩍᤵ䠅䛸䛸䜒䛻㆟ㄽ䛧䚸ᮏ◊✲䛾䜰䝥䝻䞊䝏䛾௙᪉䜢᳨ウ䛧䛯䚹᳨ウ䛾⤖ᯝ䚸䐟⁐᥋㒊䛚䜘䜃⇕ᙳ㡪㒊䛾㔠ᒓ⤌⧊ኚ໬䛿≉ᚩⓗ䛷䛒䜚䚸䝡䝑䜾䝕䞊䝍䛾ゎᯒᢏ⾡䛾୍䛴䛷䛒䜛䝕䜱䞊䝥䝷䞊䝙䞁䜾䠄␚䜏㎸䜏䝙䝳䞊䝷䝹䝛䝑䝖䝽䞊䜽䠅䜢⏝䛔䛶ゎᯒ䛧䚸ຍᕤ᮲௳䛸㛵ಀ䛵䛡䜛䛣䛸䛿Ꮫ⾡ⓗ䛻䜒⯆࿡῝䛔䚸䐠⌧ᅾ◊✲㛤Ⓨ୰䛷䛒䜛⢏Ꮚἲ䠄MPS䠅䜢⏝䛔䛯䝺䞊䝄⁐᥋ᑓ⏝䛾ᩘ್ゎᯒᡭἲ䛷䚸ᐇ⏝໬䛩䜛ୖ䛷⮴࿨ⓗ䛺ၥ㢟䛸䛺䛳䛶䛔䜛⭾኱䛺ィ⟬᫬㛫䛻䛴䛔䛶䚸䝡䝑䜾䝕䞊䝍䛾ゎᯒᢏ⾡䜢⏝䛔䛶࿘㎶⢏Ꮚ䜢ຠ⋡ⓗ䛻᥈⣴䛜䛷䛝䜜䜀䚸኱ᖜ䛻ィ⟬᫬㛫䜢▷⦰䛩䜛䛣䛸䛜䛷䛝䜛䚸䛸䛾ぢゎ䛻⾜䛳䛯䚹䛭䛣䛷䚸䐟䝺䞊䝄ຍ⇕䛻䜘䜛䝡䞊䝗䝺䝇᥋ྜ䠄ᚑ᮶䛾䝺䞊䝄⁐᥋䛸␗䛺䜚䚸ẕᮦ䜢⁐⼥䛥䛫䛪䛻ᣑᩓ᥋ྜ䛻䛶䚸᥋ྜ⏺㠃䛻䜎䛯䛜䜛⤖ᬗ⢏䜢⏕ᡂ䛥䛫䜛᥋ྜ䝥䝻䝉䝇䠅䛚䜘䜃䐠MPS 䜢⏝䛔䛯䝺䞊䝄⁐᥋⌧㇟䛾ゎ᫂䠄䜻䞊䝩䞊䝹ෆ㒊䛷䛾㔠ᒓ⵨Ẽ䛾ᣲື䠅䜢䝔䞊䝬䛸䛧䛶ᇶ♏◊✲䜢⾜䛳䛯䚹ᮏ◊✲䛿䚸᪂䛧䛔ᣮᡓⓗ䛺せ⣲䜒ྵ䜎䜜䚸◊✲ⓗ䛻䜒䝺䝧䝹䛜㧗䛟䚸◊✲ㄢ㢟䜢⤠䛳䛶䚸䝡䝑䜾䝕䞊䝍䜢㥑౑䛧䛯ḟୡ௦㧗ရ㉁䝺䞊䝄⁐᥋ᢏ⾡䛾◊✲䛾ึṌ䛸䛧䛶㐍䜑䛯䚹㻌ࣅࢵࢡࢹ࣮ࢱࢆ㥑౑ࡋࡓḟୡ௦㧗ရ㉁࣮ࣞࢨ⁐᥋ᢏ⾡ࡢ◊✲࣮̿ࣞࢨษ᩿⌧㇟ࡢゎ᫂࡟㛵ࡍࡿ᳨ウ̿୕㔜኱Ꮫ ኱Ꮫ㝔ᕤᏛ◊✲⛉ᑿᓮ ோᚿ㸪ᕝୖ ༤ኈ
1. ⥴ゝ
 ࣮ࣞࢨษ᩿ࡣ⏘ᴗ⏺࡛᭱ࡶ᪩ࡃ࠿ࡽྲྀࡾධࢀࡽࢀ㸪ࢩ࣮ࢺᮦࡢษ᩿ࢶ࣮ࣝ࡜ࡋ࡚ᗈࡃᐃ╔ࡋࡓ࣮ࣞࢨຍᕤ
ἲࡢ 1 ࡘ࡛࠶ࡿ㸬୍᪉㸪࣮ࣞࢨษ᩿ࡢ㧗ရ㉁໬ࡀᖖ࡟ồࡵࡽࢀ࡚࠾ࡾ㸪ࡑࡢࡓࡵ࡟ࡣ࣮ࣞࢨษ᩿ࡢຍᕤ⌧㇟ࡢゎ᫂ࡀ㔜せ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬࣮ࣞࢨษ᩿ࡣ㸪⿕ຍᕤᮦ࡟㞟ගࡋࡓ࣮ࣞࢨࣅ࣮࣒ࢆ↷ᑕࡋ㸪ࡑࢀࢆ⁐⼥
ࡲࡓࡣ⵨Ⓨࡉࡏࡿࡇ࡜࡟ࡼࡾ⁁㸦࣮࢝ࣇ㸧ࢆᙧᡂࡍࡿ㸬ࡑࡢ㝿㸪⁐⼥㔠ᒓࡸ㓟໬≀ࢆྵࡴᾮ≧ࡢ⏕ᡂ≀㸦ࢻࣟࢫ㸧ࡀ㸪㐺ษ࡞ᅽຊࡢ࢔ࢩࢫࢺ࢞ࢫ࡟ࡼࡗ࡚㝖ཤࡉࢀࡿ㸬ࡑࡢࡓࡵ㸪㧗࠸ษ᩿ရ㉁ࢆ㐩ᡂࡍࡿࡓࡵ࡟ࡣ㸪ࢻࣟࢫࡀ⿕ຍᕤ≀ࡢ⿬㠃࠿ࡽࢫ࣒࣮ࢬ࡟᤼ฟࡉࢀࡿᚲせࡀ࠶ࡾ㸪ࡇࡢ࡜ࡁࡢࢻࣟࢫࡢ᤼ฟᣲືࡀ㸪ษ᩿ရ㉁࡟ᙳ㡪ࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ㸬୍᪉㸪ࢻࣟࢫࡢ᤼ฟᣲືࡣษ᩿ࣇࣟࣥࢺࡢᙧ≧࡟ᙳ㡪ࢆཷࡅࡿ࡜⪃࠼ࡽࢀࡿࡇ࡜࠿ࡽ㸪࣮ࣞࢨษ᩿㒊ࢆ┤᥋ࡑࡢሙほᐹࡍࡿࡇ࡜ࡀᮃࡲࡋ࠸㸬ࡋ࠿ࡋ㸪࣮ࣞࢨษ᩿ࡣษ᩿㏿ᗘࡀẚ㍑ⓗ㏿ࡃ㸪⿕ຍᕤ≀࡛࠶ࡿ㔠ᒓࡀྍどගࢆ㏱㐣ࡋ࡞࠸ࡇ࡜࡞࡝࠿ࡽ㸪࣮ࣞࢨษ᩿㒊ࢆࡑࡢࡼ࠺࡟ほᐹࡍࡿࡇ࡜ࡣ
㏻ᖖᅔ㞴࡛࠶ࡿ㸬ࡑࡇ࡛㸪ⴭ⪅ࡽࡣ X ⥺㏱㐣⿦⨨࡟ࡼࡿ࣮ࣞࢨษ᩿㒊ࡢࣜ࢔ࣝࢱ࢖࣒ほᐹࢆヨࡳ㸪ษ᩿᮲௳࡜ษ᩿ࣇࣟࣥࢺᙧ≧࡜ࡢ㛵ಀ࡟ࡘ࠸࡚᫂ࡽ࠿࡟ࡋ࡚ࡁࡓࡀ 1)㸪㏆ᖺヰ㢟࡛࠶ࡿࣅࢵࢢࢹ࣮ࢱᢏ⾡ࢆ฼⏝ࡍࡿࡇ࡜࡟ࡼࡾ㸪࣮ࣞࢨษ᩿⌧㇟ࡢゎ᫂࡟㛵ࡋ࡚᪂ࡓ࡞ᒎ㛤ࡀᮇᚅࡉࢀࡿ㸬௨ୖࢆ㋃ࡲ࠼㸪ᮏᖺᗘࡣ࣮ࣞࢨษ᩿
⌧㇟࡟㛵ࡍࡿᩥ⊩ㄪᰝ➼࡟ࡼࡾ௒ᚋࡢ◊✲᪉㔪࡟ࡘ࠸᳨࡚ウࡋࡓ㸬
2. ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡿษ᩿ࣇࣟࣥࢺ㒊ࡢ᥎ᐃ ୖ㏙ࡢࡼ࠺࡟㸪࣮ࣞࢨษ᩿ࣇࣟࣥࢺ㒊ࡢ┤᥋ࡑࡢሙほᐹࡣᅔ㞴࡛࠶ࡿࡓࡵ㸪ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡾ
ࡑࢀࢆ᥎ᐃ࡛ࡁࢀࡤ᭷┈࡛࠶ࡿ㸬Kaplan2)ࡣ㸪ᯈཌ 1㹼6mm ࡢ㌾㗰ࡢ CO2 ࣮ࣞࢨษ᩿ࡢゎᯒࣔࢹࣝࢆసᡂࡋ㸪ษ᩿ࣇࣟࣥࢺ㒊ࡢᙧ≧➼ࢆ᥎ᐃࡋ࡚࠸ࡿ㸬ࡇࡢࣔࢹࣝ࡟ࡣ㸪࣮ࣞࢨ࠾ࡼࡧ࢔ࢩࢫࢺ࢞ࢫ࡟㛵ಀࡍࡿࡍ࡭࡚ࡢ
ࣃ࣓࣮ࣛࢱࡀ⪃៖ࡉࢀ࡚࠸ࡿࡇ࡜ࡀ≉ᚩ࡛࠶ࡿ㸬㓟⣲࢞ࢫ࡟ࡼࡿ࣮ࣞࢨษ᩿࡟࠾ࡅࡿษ᩿ࣇࣟࣥࢺࡢഴᩳゅࢆᩘ್ィ⟬࡟ࡼࡗ࡚ồࡵࡓ⤖ᯝ㸪ษ᩿ࣇࣟࣥࢺࡢഴᩳゅࡀษ᩿㏿ᗘ࡜࡜ࡶ࡟ቑຍࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡲࡓ㸪❅⣲࢞ࢫ࡟ࡼࡿ࣮ࣞࢨษ᩿࡟࠾࠸࡚ࡶྠᵝࡢ⤖ᯝࡀ♧ࡉࢀࡓ㸬࡞࠾㸪ࡇࡇ࡛ồࡵࡽࢀࡓഴᩳゅࡣᖹᆒࡢゅᗘ࡜ࡉࢀ࡚࠾ࡾ㸪ษ᩿ࣇࣟࣥࢺ㒊ࡢヲ⣽࡞ᙧ≧࡟ࡘ࠸࡚ࡣゝཬࡉࢀ࡚࠸࡞࠸㸬 ࡲࡓ᪂஭ࡽ 3)ࡣ㸪ᯈཌ 1㹼3mm ࡟࠾ࡅࡿ࣮ࣞࢨษ᩿ࣇࣟࣥࢺ࡛ࡢ⁐⼥㔠ᒓࡢ⭷ཌ࡜ࣃ࣮࣡ᐦᗘࡢ⟬ฟ࡟ࡘ࠸᳨࡚ウࡋ࡚࠸ࡿ㸬ࡑࡢ୰࡛㸪ษ᩿ࣇࣟࣥࢺ࡜࣮ࣞࢨග㍈㛫ࡢ㊥㞳ࢆồࡵࡿ㝿㸪ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡾษ
᩿ࣇࣟࣥࢺᙧ≧ࢆィ⟬ࡋ࡚࠸ࡿ㸬ࡑࡢィ⟬⤖ᯝ࡜㸪ᐇ㝿ࡢ࣮ࣞࢨษ᩿࡟ࡼࡾᚓࡽࢀࡓヨᩱࢆษ᩿⁁୰ᚰ࡛ษ᩿᪉ྥ࡟ศ๭ࡋ㸪ࡑࡢෆ㒊ᙧ≧ࡢ ᐃ࡟ࡼࡗ࡚ᚓࡽࢀࡓษ᩿ࣇࣟࣥࢺᙧ≧ࢆẚ㍑ࡋ࡚࠸ࡿࡀ㸪ᴫࡡ୍⮴ࡋ࡚࠸ࡿࡇ࡜ࢆሗ࿌ࡋ࡚࠸ࡿ㸬 ࡉࡽ࡟ᒣ⏣ࡽ 4)ࡣ㸪ᯈཌ 30mm ࡢ⣧㕲ᯈࡢ࣮ࣞࢨษ᩿ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡘ࠸᳨࡚ウࡋ࡚࠸ࡿ㸬࣮ࣞࢨษ᩿⌧㇟࡟࠾ࡅࡿ࢔ࢩࢫࢺ࢞ࢫ࣭⁐⼥㔠ᒓࡢᣲືࢆ㠀ᅽ⦰ᛶὶయ࡜௬ᐃࡋ㸪ᨭ㓄᪉⛬ᘧࢆ㐃⥆ᘧ࣭㐠ື᪉⛬ᘧ࣭࢚ࢿࣝࢠ࣮᪉⛬ᘧ࡛グ㏙ࡋ࡚࠸ࡿ㸬ࡑࡢ⤖ᯝ㸪࣮ࣞࢨษ᩿࡟ࡼࡿษ᩿ࣇࣟࣥࢺᙧᡂ࡟ࡣ㸪࢔ࢩࢫࢺ࢞ࢫ࡟ࡼ
ࡿ⁐⼥㔠ᒓ᤼ฟࡀ㔜せ࡛࠶ࡿࡇ࡜ࡀࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡾ⿬௜ࡅࡽࢀࡓ࡜ࡋ࡚࠸ࡿ㸬 ࣮ࣞࢨษ᩿⌧㇟ࡣ」㞧࡞ࡓࡵ㸪ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࡣᐜ࡛᫆ࡣ࡞࠸ࡀ㸪㏆ᖺ㸪࣮ࣞࢨ⁐᥋࡟࠾ࡅࡿ」㞧
࡞࣮࣮࢟࣍ࣝ⌧㇟࡟ᑐࡋ㸪⢏Ꮚἲ࡜࠸࠺᪂ࡋ࠸ࢩ࣑࣮ࣗࣞࢩࣙࣥᡭἲࢆ⏝࠸ࡓ⌮ㄽⓗ࡞࢔ࣉ࣮ࣟࢳࡀヨࡳࡽࢀ࡚࠸ࡿ㸬ࡑࡇ࡛㸪⢏Ꮚἲࡢ࣮ࣞࢨษ᩿࡬ࡢ㐺⏝ࢆど㔝࡟ධࢀ㸪௨ୗ࡟ࡑࡢෆᐜࢆ㏙࡭ࡿ㸬− 21 −

3. ⢏Ꮚἲ࡟ࡼࡿ࣮ࣞࢨ⁐᥋⌧㇟࡟㛵ࡍࡿ⌮ㄽⓗ᳨ウ ⢏Ꮚἲࡣὶయࢆ௵ពࡢ኱ࡁࡉࡢሢ࡟㞳ᩓ໬ࡋ࡚ࡑࢀࢆ௬࡟⢏Ꮚ࡜࠸࠺Ꮡᅾ࡜ࡋ࡚ィ⟬ࡍࡿ᪉ἲ࡛࠶ࡿ 5)㸬
⢏Ꮚἲࡢ௦⾲ⓗ࡞ࡶࡢ࡟ࡣ㸪MPS㸦Moving Particle Simulation㸧ἲ࡜ SPH㸦Smoothed Particle Hydrodynamics㸧ἲࡀ࠶ࡿ㸬ࡑࡢෆ㸪ゎᯒᑐ㇟ࢆ㡿ᇦศ๭ࡍࡿࡇ࡜࡞ࡃ㸪ィ⟬ᑐ㇟࡟ᆒ➼࡟㓄⨨ࡋࡓⅬࡢ᝟ሗ࡟ᇶ࡙ࡁ㸪㐃⥆యࡢຊᏛィ⟬ࡀྍ⬟࡛࠶ࡾ㸪࣮࣮࢟࣍ࣝࡢࡼ࠺࡞኱ኚ໬ࢆక࠺⮬⏤⾲㠃ࡢィ⟬࡟㐺ࡋ࡚࠸ࡿ MPS ἲࡀ᥇⏝ࡉࢀ㸪࣮ࣞࢨ⁐᥋ᑓ⏝ࡢ⢏Ꮚἲࡀ㛤Ⓨࡉࢀࡓ 6)㸬
 ࣮ࣞࢨฟຊ 6kW㸪⁐᥋㏿ᗘ 100mm/s ࡟࠾ࡅࡿ X ⥺㏱どほᐹ⤖ᯝࢆ Fig.1 ࡟㸪ྠ⁐᥋᮲௳࡟࠾ࡅࡿ⢏Ꮚἲ࡟ࡼࡿᩘ್ィ⟬⤖ᯝ㸦୰ኸ᩿㠃࡟࠾ࡅࡿ ᗘศᕸ㸧ࢆ Fig.2 ࡟♧ࡍ㸬࠸ࡎࢀࡶ࣮ࣞࢨ↷ᑕ㛤ጞ᫬㛫ࡀ 0ms ࡛࠶ࡿ㸬Fig.1 ࡟࠾࠸࡚↷ᑕ㛤ጞ 0.5ms ᚋ࡟࣮࣮࢟࣍ࣝඛ➃ࡣ 1.5mm ࡟㐩ࡋ㸪2ms ᚋࡲ࡛ࡣ 1.7m/s ࡢ㏿ᗘ࡛࣮࣮࢟࣍ࣝࡀᡂ㛗ࡋ㸪3ms ௨㝆ࡣ 1 ᱆ᑠࡉ࠸ 0.01m/s ࡢ㏿ᗘ࡛Ᏻᐃࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬୍᪉㸪Fig.2 ࡟࠾࠸࡚ࡣ㸪࣮ࣞࢨ↷ᑕ㛤ጞ 0.5ms ᚋ࡟࣮࣮࢟࣍ࣝඛ➃ࡣ 1.4mm ࡟㐩ࡋ㸪2ms ᚋࡲ࡛ࡣ 1.2m/s ࡢ㏿ᗘ࡛࣮࣮࢟࣍ࣝࡀᡂ㛗ࡋ㸪3ms ௨㝆ࡣ 1 ᱆ᑠࡉ࠸ 0.09m/s ࡢ㏿ᗘ࡛ᡂ㛗ࡍࡿ࡜࠸࠺⤖ᯝࡀᚓࡽࢀ࡚࠸ࡿ㸬୧⪅ࢆẚ㍑ࡍࡿࡇ࡜࡟ࡼ
ࡾ㸪࣮࣮࢟࣍ࣝᙧᡂ㐣⛬ࡀ⢏Ꮚἲ࡟ࡼࡿᩘ್ィ⟬࡛෌⌧ࡉࢀࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬 ࡓࡔࡋ㸪ୖグࡢ㛤Ⓨࡋ࡚ࡁࡓ࣮ࣞࢨ⁐᥋ᑓ⏝ࡢ⢏Ꮚἲ࡛ࡣ㸪⵨Ⓨ㔠ᒓࡢ࣮࣮࢟࣍ࣝ࡬ࡢ෌௜╔࡟ࡘ࠸࡚ࡣ
⪃៖࡛ࡁ࡚࠸࡞࠿ࡗࡓ㸬ࡑࡇ࡛㸪⵨Ⓨ㔠ᒓࡢ࣮࣮࢟࣍ࣝ࡬ࡢ෌௜╔ࡢ࢔ࣝࢦࣜࢬ࣒ࢆ㏣ຍࡋ㸪࣮࣮࢟࣍ࣝᙧ
≧࠾ࡼࡧ࣮ࣞࢨ྾཰࡟࠾ࡅࡿ࣮࣮࢟࣍ࣝෆ㒊ࡢ㔠ᒓ⵨Ẽࡀᯝࡓࡍᙺ๭࡟ࡘ࠸᳨࡚ドࡋࡓ㸬ࡑࡢ⤖ᯝ㸪࣮࣮࢟࣍ࣝᙧ≧ࡣಖࡓࢀ㸪࣮ࣞࢨ྾཰ࡶᐇ㦂್࡟㏆࠸್࡟ᨵၿࡉࢀ࡚࠸ࡿ㸬 ୍᪉㸪⌧≧ࡢ࣮ࣞࢨ⁐᥋ᑓ⏝ࡢ⢏Ꮚἲ࡛ࡣ㸪᫬㛫ኚ໬ࡢ࡞࠸⢏Ꮚ࡟ࡘ࠸࡚ࡶ㒔ᗘィ⟬ࢆ⧞ࡾ㏉ࡋ࡚࠾ࡾ㸪ゎᯒ࡟㛗᫬㛫ࢆせࡍࡿࡇ࡜ࡀ㞴Ⅼ࡛࠶ࡿ㸬௒ᚋࡣィ⟬⤖ᯝࢆࢹ࣮ࢱ࣮࣋ࢫ࡜ࡋ࡚㞟✚ࡋ࡚࠾ࡁ㸪ྠᵝ࡞ィ⟬ࡣࡑࢀࢆཧ↷ࡍࡿࡼ࠺࡞ࣅࢵࢢࢹ࣮ࢱᢏ⾡ࢆ㛤Ⓨࡋ㸪ィ⟬᫬㛫ࡢ▷⦰ࢆᅗࡿᚲせࡀ࠶ࡿ㸬ཧ⪃ᩥ⊩1) H. Ozaki, M. Q. Le, H. Kawakami, J. Suzuki, Y. Uemura,Y. Doi, M. Mizutani, Y. Kawahito: Real-time observation of laser cutting fronts by X-ray transmission, Journalof Materials Processing Technology, 237 (2016), 181–187.
2) A. F. H. Kaplan: An analytical model of metal cutting with a laser beam, Journal of Applied Physics, 79-5 (1996), 2198-2208.
3) ᪂஭Ṋ஧㸪኱ᮧᝋ஧㸸࣮ࣞࢨษ᩿ࣇࣟࣥࢺ࡟࠾ࡅࡿ⁐⼥⭷ཌ࡜ࣃ࣮࣡ᐦᗘࡢ᥎⟬㸪࣮ࣞࢨຍᕤᏛ఍ㄅ㸪14-3 (2007)㸪500-506.
4) ᮡཎ೺ኴ㸪ᑠᕝ๛඘㸪୰ᮧಖஅ㸪ᮧᯇኖᬕ㸸ཌᯈ㔠ᒓࡢ࣮ࣞࢨษ᩿ࢩ࣑࣮ࣗࣞࢩࣙࣥ㸪࡞ࡀࢀ㸸᪥ᮏὶయຊᏛ఍ㄅ㸪 31(2012), 151-156.
5) ㉺ሯㄔ୍㸪ᰘ⏣࿴ஓ㸪ᐊ㇂ᾈᖹ㸸⢏Ꮚἲධ㛛㸪୸ၿฟ∧㸪(2014).
6) ༓ᮧఀస㸪ᕝேὒ௓㸪ᮧᕝⱥ୍㸸⢏Ꮚἲ࡜ X ⥺ࡑࡢሙほᐹࢆ⏝࠸ࡓࢫࢸࣥࣞࢫ㗰࣮ࣞࢨ⁐᥋᫬ࡢ࣮࣮࢟࣍ࣝᙧᡂᶵᵓゎ᫂㸪࣮ࣞࢨຍᕤᏛ఍ㄅ㸪23-2 (2016)㸪
146-152.

㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧− 22 −

↓⁐⼥᥋ྜ࡟㛵ࡍࡿᇶ♏ⓗ◊✲㜿༡ᕤᴗ㧗➼ᑓ㛛Ꮫᰯ ๰㐀ᢏ⾡ᕤᏛ⛉すᮏ ᾈྖ
࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝ᕝே ὒ௓

㸯㸬◊✲⫼ᬒ࠾ࡼࡧ┠ⓗ࣮ࣞࢨ⁐᥋ࡣ㸪㧗ࣃ࣮࣡ᐦᗘࢆ᭷ࡋ࡚࠸ࡿࡓࡵⷧᯈࡢ㧗㏿⁐᥋ࡀྍ⬟࡛࠶ࡾ㸪௚ࡢ⁐᥋ἲ࡟ẚ࡭࡚ࣅ࣮ࢻᖜ㸪⇕ᙳ㡪㒊࡜ࡶ࡟ᖜࡢ⊃࠸⁐᥋㒊ࡢస〇ࡀ࡛ࡁࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪␗✀㔠ᒓ᥋ྜ࡟࠾࠸࡚ࡣ᥋ྜ
㒊࡟㔠ᒓ㛫໬ྜ≀ࡀཌࡃᙧᡂࡉࢀ࡚ࡋࡲ࠸㸪༑ศ࡞⥅ᡭᙉᗘࢆᚓࡿࡇ࡜ࡀ࡛ࡁ࡞࠸㸬୍᪉㸪⁐᥋࡜ࡣ␗࡞ࡾ㸪ẕᮦࡢ⁐⼥ࢆకࢃ࡞࠸ᅽ᥋ࡸᣑᩓ᥋ྜ࡜࠸ࡗࡓᅛ┦᥋ྜἲ࡛ࡣ㸪㔠ᒓ㛫໬ྜ≀ࡢᙧᡂࢆ᭱ᑠ㝈࡟ᢚไࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ᒁᡤຍ⇕ࡀྍ⬟࡛࠶ࡾධ⇕㔞ࡢไᚚࡀẚ㍑ⓗᐜ᫆࡞࣮ࣞࢨࢆᅛ┦᥋ྜ࡟㐺⏝ࡍࡿࡇ࡜ࢆᥦ᱌ࡋ㸪ᅛ┦᥋ྜ࡛㔜せ࡞᥋ྜ㒊ࡢᖹ㠃⢭ᗘ㸪᥋ྜᅽຊ࠾ࡼࡧຍ⇕᮲௳ࢆ✀ࠎኚ໬ࡉࡏ࡚ᐇ㦂ࢆ⾜࠸㸪࣮ࣞࢨࢆ⏝࠸ࡓ↓⁐⼥᥋ྜ࡟㛵ࡍࡿᇶ♏ⓗ▱ぢࢆᚓࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬ᮏሗ࿌࡛ࡣ㸪࣮ࣞࢨࢆ⏝࠸ࡓ↓⁐⼥᥋ྜࡢྍ⬟ᛶࢆ᳨ウࡍࡿࡓࡵ࡟㸪ⷧᯈࡢ㕲㗰ᮦᩱࢆ⏝࠸㸪㠃⢒ࡉ࡜࣮ࣞࢨฟຊࢆࣃ࣓࣮ࣛࢱ࡜ࡋ᥋ྜᐇ㦂ࢆᐇ᪋ࡋࡓ⤖ᯝࢆሗ࿌ࡍࡿ㸬㸰㸬ᐇ㦂᪉ἲ
౪ヨᮦ࡜ࡋ࡚㸪ࢧ࢖ࢬ 301201t mm ࡢ SPCC ࢆ⏝࠸ࡓ㸬౪ヨᮦࡢ✺ྜࡏ㠃ࡣษ๐㸪ᨺ㟁ຍᕤ࠾ࡼࡧࢫࣃ࣮ࣟࣝຍᕤ࡟ࡼࡾ௙ୖࡆࡓ㸬ྛ✀ຍᕤἲ࡟ࡼࡾ௙ୖࡆࢆ⾜ࡗࡓ✺ྜࡏ㠃ࡢእほ෗┿࡜㠃⢒ࡉࢆ⾲ 1 ࡟ࡲ࡜ࡵ࡚♧ࡍ㸬౪ヨᮦࡣ㸪௙ୖࡆ㠃ྠኈࢆ✺ࡁྜࢃࡏ㸪⣙ 40 MPa ࡢ㠃ᅽ࡛ᢲᅽࡋ㸪἞ල࡛ᅛᐃࡋࡓ㸬ᐇ㦂⿦⨨ࡢᴫ␎ᅗࢆᅗ 1 ࡟♧ࡍ㸬ᐇ㦂࡟ࡣἼ㛗 1030 nm ࡢࢹ࢕ࢫࢡ࣮ࣞࢨࢆ⏝࠸ࡓ㸬↔Ⅼࡣࡎࡋ㊥㞳ࢆ
20 mm㸦ࢫ࣏ࢵࢺᚄȭ5 mm㸧㸪㏦ࡾ㏿ᗘࢆ 1.0
m/min㸪࣮ࣞࢨฟຊࢆ 500~1100 W ࡜ኚ໬ࡉᅗ 1 ᐇ㦂⿦⨨ࡢᴫ␎ᅗࡏ࡚㸪✺ྜࡏ㒊࡟ᑐࡋ࣮ࣞࢨ↷ᑕࢆ⾜ࡗࡓ㸬⾲㸯 ᥋ྜ㠃ࡢฎ⌮᪉ἲ࡜㠃⢒ࡉ

− 23 −

㸱㸬ᐇ㦂⤖ᯝྛ✀⁐᥋᮲௳࡟ࡼࡾᐇ㦂ࢆ⾜ࡗࡓ⤖ᯝࢆ⾲ 2 ࡟ࡲ࡜ࡵ࡚♧ࡍ㸬࠸ࡎࢀࡢ௙ୖࡆຍᕤ᪉ἲ࠾ࡼࡧ⾲㠃⢒ࡉ࡟࠾࠸࡚ࡶ㸪࣮ࣞࢨฟຊ 1000 W ࡛⁐᥋ࣅ࣮ࢻࡀᙧᡂࡉࢀ࡚࠾ࡾ㸪᥋ྜ㒊ࡢ⁐⼥ࡀ☜ㄆࡉࢀࡓ㸬ᨺ㟁ຍᕤࡉࢀࡓ௙ୖࡆ㠃ࡀ᭱ࡶ᥋ྜᛶࡀᝏࡃ㸪࣮ࣞࢨฟຊ 800 W ௨ୗ࡛᥋ྜࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓ㸬ษ๐ຍᕤ࡛ࡣ㸪௙ୖࡆ㠃⢒ࡉࡀᑠࡉࡃ࡞ࡿ࡯࡝᥋ྜᛶࡀⰋࡃ࡞ࡗ࡚࠸ࡓ㸬࣮ࣞࢨฟຊ 1000 ࠾ࡼࡧ 900 W ࡛ࢫࣃ࣮ࣟࣝຍᕤࡉࢀࡓ௙ୖࡆ㠃ࢆ⁐᥋ࡋࡓ᥋ྜ㒊ࡢእほ෗┿ࢆᅗ 2 ࡟♧ࡍ㸬ࡲࡓ㸪ࡑࢀࡒࢀࡢ⁐᥋㒊᩿㠃෗┿ࢆᅗ 3 ࡟♧ࡍ㸬࣮ࣞࢨฟຊ 1000 W ࡛ࡣ㸪᥋ྜ㒊࡟⁐⼥ࣅ࣮ࢻࡢᙧᡂࡀㄆࡵࡽࢀࡿࡀ㸪900 W ࡛ࡣㄆࡵࡽࢀ࡞࠿ࡗࡓ㸬᥋ྜ㒊᩿㠃ほᐹࡢ⤖ᯝࡶྠᵝ࡛࠶ࡗࡓࡀ㸪900 W ࡛ࡣ᫂☜࡞⁐⼥ᒙࡀㄆࡵࡽࢀ࡞
࠸ࡀ᥋ྜ⏺㠃඲⯡࡟ࢃࡓࡗ࡚ࡳ᥋ྜ㒊ࡶㄆࡵࡽࢀ࡞࠿ࡗࡓ㸬ᘬᙇヨ㦂ࡢ⤖ᯝ㸪Ra 0.048 㠃ཬࡧ Ra 0.183
㠃ࡢ౪ヨᮦ࡬㸪࣮ࣞࢨฟຊ 900 W ࡛࣮ࣞࢨ↷ᑕࡋ࡚ᚓࡽࢀࡓ᥋ྜ⥅ᡭࡣ㸪ẕᮦࡢᘬᙇᙉᗘ 360 MPa ࡜ྠ➼௨ୖࡢᙉᗘࡀᚓࡽࢀࡓ㸬ࡲࡓ㸪180r᭤ࡆヨ㦂࡟࠾࠸࡚ࡶ᥋ྜ㠃࡛◚᩿ࡋ࡞࠸Ⰻዲ࡞⥅ᡭࢆᚓࡿࡇ
࡜ࡀ࡛ࡁࡓ㸬㸲㸬⤖ㄽ ᮏ◊✲࡛ࡣ㸪ᒁᡤຍ⇕ࡀྍ⬟࡛࠶ࡾධ⇕㔞ࡢไᚚࡀẚ㍑ⓗᐜ᫆࡞࣮ࣞࢨࢆᅛ┦᥋ྜ࡟㐺⏝ࡋ㸪ⷧᯈࡢ㕲㗰ᮦᩱࢆ⏝࠸㸪㠃⢒ࡉ࡜࣮ࣞࢨฟຊࢆࣃ࣓࣮ࣛࢱ࡜ࡋ᥋ྜᐇ㦂ࢆᐇ᪋ࡋࡓ㸬㐺ṇ࡞᮲௳⠊ᅖ࡟࠾࠸࡚㸪ᘬᙇヨ㦂࡛ẕᮦ࠿ࡽ◚᩿ࡍࡿ㧗ᙉᗘ࡞⥅ᡭࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓ㸬⾲ 2 ᥋ྜࡢྍྰ⾲⿬(a) 1000 W(a) 1000 W⾲(b) 900 Wᅗ 3 ⁐᥋㒊᩿㠃ほᐹ෗┿⿬(b) 900 Wᅗ 2 ᥋ྜ㒊ࡢእほ෗┿㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧− 24 −

୍⯡බເ◊✲ㄢ㢟࣭◊✲ሗ࿌᭩㻌㻌୕ゅἼࢆ⏝࠸ࡓࣃࣝࢫ࢔࣮ࢡ࡟࠾ࡅࡿ㔠ᒓ⵨Ẽΰධ᫬ࡢᨺᑕᦆኻࡢゎ᫂ᮾி㒔ᕷ኱Ꮫᒾᑿ ᚭ
1. ࡣࡌࡵ࡟
7,*࢔࣮ࢡ⁐᥋ࡣ㸪㧗ရ㉁࡞⁐᥋ࡀ⾜࠼ࡿࡓࡵ㸪ಙ㢗ᛶࡀồࡵࡽࢀࡿཎᏊຊⓎ㟁ᡤࡢ㓄⟶࡞࡝࡟⏝࠸ࡽࢀ࡚࠸ࡿࠋࡋ࠿ࡋ㸪ධ⇕୙㊊㸪⁐ࡅ㎸ࡳ῝ࡉࡀཎᅉ࡜ࡉࢀࡿ⁐᥋Ḟ㝗ࡀⓎ⏕ࡍࡿࠋࡇࡢࡓࡵ㸪ᨵၿ⟇࡜ࡋ࡚㸪㟁ὶࡀ࿘ᮇⓗ࡟ቑῶࡍࡿࣃࣝࢫ㟁ὶࢆ⏝࠸ࡓࣃࣝࢫ7,*࢔࣮ࢡ⁐᥋ࡀ⏝࠸ࡽࢀࡿ(1)(2)ࠋࣃࣝࢫ㟁ὶ࡟ࡼࡿ◊✲ࡣ㸪࿘Ἴᩘࡸ㟁ὶቑຍ⋡ࢆኚ໬ࡉࡏࡓ◊✲ࡀ⾜ࢃࢀ࡚࠾ࡾ㸪㕲⵨Ẽ⃰ᗘࡢศᕸࡢኚ໬ࡀᨺᑕศᕸ࡟ᐤ୚ࡋ࢔࣮ࢡ
ࡢ࢚ࢿࣝࢠ࣮ࣂࣛࣥࢫ࡟ኚ໬ࢆࡶࡓࡽࡍࠋࡉࡽ࡟㸪㐣Ώᛂ⟅ࡀ㢧ⴭ࡛࠶ࡿ࡯࡝㸪ᛴᓧ࡞㟁ὶࡢቑຍ࡟࢔࣮ࢡ
ᗘࡀ㏣ᚑࡍࡿࡇ࡜ࡀ࡛ࡁࡎ࢔࣮ࢡ඲యࡢ

ᗘࡀపୗࡍࡿࡓࡵ㸪㟁ὶ❧ࡕୖࡀࡾ᫬࡛ࡣ㸪ᑕᦆኻࡀపୗࡍࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡋࡓࡀࡗ࡚㸪࢔࣮ࢡᗘࡀపୗࡍࡿࡵ࡚㔜せ࡛࠶ࡿࠋࡇࡢࡓࡵ㸪㟁ὶἼᙧࢆ୕ゅἼ࡟ࡍࡿࡇ࡜࡛㸪㧗ᗘ࡟౫Ꮡࡍࡿᨺ

ᗘศᕸࢆᙧᡂࡍࡿࡇ࡜ࡀᴟ

㒊࡬ࡢ㕲⵨Ẽΰධࢆᢚไࡋ㸪᭦࡞ࡿᨺᑕ

ᦆኻࡢపୗࡀᮇᚅ࡛ࡁࡿࠋᮏ◊✲࡛ࡣ㸪ࣃࣝࢫ㟁ὶ࡟୕ゅἼࢆ⏝࠸ࡓࣃࣝࢫ7,*࢔࣮ࢡ⁐᥋ࡢᩘ್ゎᯒࢆ⾜࠸㸪㔠ᒓ⵨Ẽΰධ᫬ࡢࣃࣝࢫ࢔࣮ࢡࡢᨺᑕᦆኻࢆ⌮ㄽⓗ࡟ゎ᫂ࡍࡿࠋ
2. ィ⟬᪉ἲ ᮏ◊✲࡛ࡣ㸪㟁ᴟ㸪࢔࣮ࢡ㸪ẕᮦ㡿ᇦࢆྵࡵࡓ㸪࢔࣮ࢡ㸫ᮦᩱࡀ⤫ྜࡋࡓィ⟬㡿ᇦࢆタᐃࡋࡓࠋィ⟬ࣔࢹࣝࢆᅗ 1 ࡟♧ࡍࠋᗙᶆࡣ㸪2ḟඖ෇⟄ᗙᶆ⣔ࡢ㍈ᑐ㇟࡜ࡋࡓࠋ㝜ᴟࡣᮦᩱ࡟ࢱࣥࢢࢫࢸࣥࢆ⏝࠸㸪ඛ➃ࡢゅᗘࡣ 60r࡜ࡋࡓࠋ㝧ᴟࡣ㕲ࡀ୺ᡂศ࡛࠶ࡿ SUS304 ࢆ⏝࠸ࡓࠋࢩ࣮ࣝࢻ࢞ࢫࢆ㝜ᴟࡢ⬥࠿ࡽ 10 slm ྿࠿ࡏ࡚࠸ࡿタᐃ࡟ࡋࡓࠋ
ࡲࡓ㸪㔠ᒓ⵨Ẽࡣ㝧ᴟ࡜㝜ᴟࡢቃ⏺࡟ࡣධࡽ࡞࠸ࡼ࠺࡟タᐃࡋࡓࠋ⁐᥋ࣃ࣓࣮ࣛࢱ࡜ࡋ࡚㸪ᅗ 2 ࡟㟁ὶἼᙧࢆ♧ࡍࠋ㟁ὶࡣ࣮࣋ࢫ㟁ὶ
100 A㸪ࣆ࣮ࢡ㟁ὶ 200 A㸪࿘Ἴᩘ 1000 Hz㸪㟁ὶ㑄⛣᫬㛫 0.5 ms ࡢࣃࣝࢫ㟁ὶ࡜ࡋࡓࠋ㟁ὶึᮇ್࡟ࡣ 100 A ࡢ≀ᛶࢆ⏝࠸ࡓࠋࡲࡓ㸪୍ᐃ㟁ὶ 200 A ࡟ࡘ࠸࡚ࡶィ⟬ࢆ⾜ࡗࡓࠋ㟁ᴟ㛫㊥㞳ࡣ 5 mm ࡜ࡋࡓࠋᮏ◊✲࡛ᑐ㇟࡜ࡍࡿ࢔࣮ࢡࡣ㸪௨ୗࡢィ⟬௬ᐃࢆ‶㊊ࡍࡿࡶࡢ࡜ࡋ
࡚ィ⟬ࢆ⾜࠺ࠋᒁᡤ⇕ᖹ⾮ࡀᡂ❧ࡍࡿࠋ໬Ꮫⓗᖹ⾮≧ែࡀᡂ❧ࡍࡿࠋὶࢀࡣ඲࡚ᒙὶࠋ㟁ᴟࡢ⁐⼥ࡣ㸪ẕᮦ࡜࡞ࡿ㝧ᴟࡢࡳ࡜ࡋ㸪ᙧᡂࡉ
ᅗ 1 ィ⟬ࣔࢹࣝࢀࡿ⁐⼥ụ⾲㠃ࡣᖖ࡟ᖹ㠃࡜ࡍࡿࠋ
3. ⤖ᯝ࠾ࡼࡧ᳨ウᅗ 3 ࡟᫬㛫ኚ໬࡟࠾ࡅࡿᨺᑕᦆኻࢆ♧ࡍࠋࡇࡢ⤖ᯝࡼࡾ㸪
୕ゅἼࢆ⏝࠸ࡓሙྜ࡛ࡣ㸪ᐃᖖ㟁ὶ࡜ẚ㍑ࡋ࡚㸪ᨺᑕᦆኻࡀ
పୗࡋࡓࠋ5.1 ms ࡲ࡛ࡢ 5 ࿘ᮇࡢᖹᆒ࡛ࡣ㸪137 W ࡢᨺᑕᦆኻࡀపୗࡍࡿ⤖ᯝ࡜࡞ࡗࡓࠋࡇࢀࡣ㸪㝧ᴟ࠿ࡽࡢ㕲⵨Ẽ࡛࠶ࡿ㸪㑄⛣㔠ᒓ Fe ࡢΰධ㔞ࡀపୗࡍࡿࡇ࡜࡟ࡼࡗ࡚㸪ᨺᑕࡀపୗࡍࡿࡇ࡜࡛⏕ࡌࡿ⌧㇟࡛࠶ࡿࠋࡲࡓ㸪ᨺᑕᦆኻࡣ

ᗘ࡟౫Ꮡࡍࡿࡓࡵ㸪 ᗘࡢపୗ࡟ࡼࡾ㸪ᨺᑕᦆኻࡀపୗࡍࡿࡓࡵ
࡛࠶ࡿࠋ
ᅗ 2 㟁ὶἼᙧ

− 25 −

ᅗ 4 ࡟᫬㛫ኚ໬࡟࠾ࡅࡿ㔠ᒓ⵨Ẽ㔞ࢆ♧ࡍࠋ㔠ᒓ⵨Ẽ㔞ࡣ㸪୕ゅἼ࡟࠾ࡅࡿ㸪5.1 ms ࡲ࡛ࡢ 5 ࿘ᮇࡢᖹᆒ࡛ࡣ㸪8.05  10-9 kg ࡜࡞ࡾ㸪ᐃᖖ㟁ὶࡢ 3.54 
10-8 kg ࡜ẚ㍑ࡋࡓሙྜ㸪2.74  10-9 kg ࡢ㕲⵨Ẽ㔞ࡀపୗࡍࡿ⤖ᯝ࡜࡞ࡗࡓࠋࡇࢀࡣ㸪୕ゅἼ࡟ࡼࡾ㐣Ώᛂ⟅ࡀ⧞ࡾ㏉ࡋ⏕ࡌࡿࡇ࡜࡛㸪ᛴᓧ࡞㟁ὶࡢቑຍ࡟
࢔࣮ࢡ

ᗘࡀ㏣ᚑࡍࡿࡇ࡜ࡀ࡛ࡁࡎ࢔࣮ࢡ඲యࡢ

ᗘࡀపୗࡍࡿࡓࡵ࡛࠶ࡿࠋࡇࡢ⤖ᯝ㸪㝧ᴟࡢᗘࡀୖ᪼ࡏࡎ㸪㝧ᴟ࠿ࡽࡢ㕲⵨Ẽࡢΰධ㔞ࡀῶᑡࡋࡓࠋ
ࡋ࠿ࡋ㸪ᐃᖖ 200 A ࡢ㔠ᒓ⵨Ẽ㔞ࡼࡾ୕ゅἼࡢሙྜ࡛ࡣ㸪㔠ᒓ⵨Ẽ㔞ࡀᑡ࡞࠸ࡓࡵ㸪ᨺᑕᦆኻࡢ᫬㛫ኚ໬࡟ࡼࡿቑῶࡣ㸪ᗘࡢቑῶ࡟ࡼࡿࡶࡢ࡜࡞ࡿࠋࡲ

ࡓ㸪୕ゅἼ࡟࠾ࡅࡿᨺᑕᦆኻࡢ᭱኱್ࡣ㸪488 W ࡛࠶ࡾ㸪ᐃᖖ 200A ࡢ್࡛࠶ࡿ 480 W ࡼࡾ㸪8 W ୖ᪼ࡍࡿࠋࡇࢀࡣ㸪୕ゅἼ࡛ࡣ㧗

ᅗ 3 ᫬㛫ኚ໬࡟࠾ࡅࡿᨺᑕᦆኻ

ᗘศᕸࡀపୗࡍࡿࡀ㸪㒊࡬ࡢ㔠ᒓ⵨Ẽࡢΰධ㔞ࡀ㸪ᐃᖖ᫬࡜ẚ࡭ከ࠸ࡓࡵ㸪ᨺᑕᦆኻࡀୖ᪼ࡋࡓࡓࡵ࡛࠶ࡿࠋ
4. ࡲ࡜ࡵ୕ゅἼ࡜ᐃᖖ㟁ὶ࡟࠾ࡅࡿᨺᑕᦆኻ࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓࠋ⤖ᯝ࡜ࡋ࡚㸪୕ゅἼࢆ⏝࠸ࡓሙྜ㸪5 ࿘ᮇࡢྜィࡢᨺᑕᦆኻࡣపୗࡋࡓࠋࡲࡓ㸪ᨺᑕᦆኻࡢ
᭱኱್ࡣᐃᖖ㟁ὶࡼࡾୖ᪼ࡋࡓࡇ࡜ࡀ♧ࡉࢀࡓࠋࡇ
ࡢ⌮⏤࡜ࡋ࡚㸪୕ゅἼࡢᨺᑕᦆኻࡣ

ᗘ࡟኱ࡁࡃ౫

Ꮡࡍࡿࡓࡵ࡛࠶ࡿࠋࡇࡢࡓࡵ㸪㐣Ώᛂ⟅ࢆ⧞ࡾ㏉ࡍࡇ࡜࡛㸪ᗘࡀపୗࡋ㸪ᨺᑕᦆኻࡀపୗࡍࡿࠋࡉࡽ࡟㸪 ᗘࡀపୗࡍࡿࡇ࡜࡛㸪㔠ᒓ⵨Ẽ㔞ࡀῶᑡࡍࡿࠋ
ࡲࡓ㸪୕ゅἼ࡟࠾࠸࡚ᨺᑕᦆኻࡢ᭱኱್ࡀ㸪ᐃᖖ㟁ὶࡼࡾ㧗࠸⌮⏤࡜ࡋ࡚ࡣ㸪㍈୰ᚰ㒊ࡢ㧗

ᅗ 4 ᫬㛫ኚ໬࡟࠾ࡅࡿ㔠ᒓ⵨Ẽ㔞㒊࡟㔠ᒓ⵨Ẽࡀ␃ࡲࡿࡇ࡜࡛㸪ᨺᑕᦆኻࡀቑຍࡋࡓࡓࡵ࡛࠶
ࡿࠋ
5. ཧ⪃ᩥ⊩(1) P.Zhu, J.J.Lowke, R.Morrow, J.Haidar:´ Prediction of anode temperature of free burning arcs´, J. Phys. D:
Appl.Phys., Vol.28, pp.1369-1376 (1995).
(2) ⢄஭ᖹ, ᒾᑿᚭ, ‫‮‬ᮏ㞞ᜨ: ࠕࣃࣝࢫ࢔࣮ࢡ࡟࠾ࡅࡿ㝧ᴟ࡬ࡢ⇕ὶ᮰࡟ཬࡰࡍ㟁ὶ❧ࡕୖࡀࡾ㑄⛣᫬㛫ࡢᐤ୚ࠖ, 㟁ẼᏛ఍ㄽᩥㄅ B, Vol.133, No.5, pp.409-416 ( 2012).
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 26 −

ࣃࣝࢫ࢔࣮ࢡ࡟࠾ࡅࡿ㟁ὶ❧ࡕୖࡀࡾ᫬ࡢ❅⣲⃰ᗘࡢ᫬㛫ኚ໬ᮾி㒔ᕷ኱Ꮫ㧗ᶫ ᗈᶞ
1. ࡣࡌࡵ࡟ ࣃࣝࢫ 7,* ࢔࣮ࢡ⁐᥋ࡣ㸪7,* ⁐᥋ࡢḞⅬ࡛࠶ࡿධ⇕୙㊊ࡸ⁐ࡅ㎸ࡳ୙Ⰻࡀᨵၿࡉࢀࡿࡓࡵᗈࡃ⏝࠸ࡽࢀ࡚࠸ࡿ⁐᥋ἲ࡛࠶ࡿ(1)(2)ࠋࡋ࠿ࡋ㸪࢞ࢫࢩ࣮ࣝࢻ࢔࣮ࢡ⁐᥋ἲࡣ㸪Ẽయ࡟ࡼࡾ㞺ᅖẼ୰ࡢ❅⣲ࢆ㐽᩿ࡋ࡚࠾ࡾ㸪ࣀࢬࣝඛ➃࠿ࡽ⁐⼥ụࡲ࡛ࡢ㊥㞳ࡀẚ㍑ⓗ㛗࠸ࡇ࡜࠿ࡽࢩ࣮ࣝࢻ୙Ⰻ࡟㝗ࡾࡸࡍ࠸ࠋࡋࡓࡀࡗ࡚㸪ࣃࣝࢫ 7,*࢔࣮ࢡ⁐᥋ࢆ⏝࠸ࡓ⁐᥋Ḟ㝗㜵Ṇࡢࡓࡵ࡟ࡣ㸪⁐ࡅ㎸ࡳᙧ≧ࢆᨵၿࡋࡘࡘ㸪࠿ࡘ㸪Ⰻዲ࡞ࢩ࣮ࣝࢻᛶࡀಖࡓ
ࢀ࡚࠸ࡿࡇ࡜ࡀ๓ᥦ᮲௳࡛࠶ࡿࠋᚑ᮶ࡼࡾ㸪ࣃࣝࢫ࢔࣮ࢡࡢ◊✲࡛ࡣ㸪㐣Ώᛂ⟅࡟ࡼࡾ࢔࣮ࢡᙧ≧ࡀ཰⦰ࡍࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡇࡢ཰⦰࡟ࡼࡾ㸪ὶ㏿ࡸ㟁☢ຊ࡟ࡼࡿࢩ࣮ࣝࢻ࢞ࢫࡢὶࢀࡀኚࢃࡿࡇ࡜࡛㸪ࢩ࣮ࣝࢻᛶࢆኚ໬ࡉࡏࡿࠋࡋ࠿ࡋ㸪ᐇ㦂࡟ࡼࡿ◊✲࡛ࡣ㸪࢞ࢫࡣ↓Ⰽ㏱࡛᫂࠶ࡿࡇ࡜࠿ࡽࡑࡢὶࢀࢆほࡍࡿࡇ࡜ࡣ㞴ࡋ࠸ࠋࡲࡓ㸪ィ⟬࡟ࡼࡿ◊✲࡛ࡣ㸪㞺ᅖẼ୰ࡢ❅⣲ࢆ⪃៖ࡋࡓሗ࿌ࡣᑡ࡞࠸㸪࠿ࡘ㸪ࣃࣝࢫ࢔࣮ࢡ࡟
࠾ࡅࡿ◊✲࡛ࢩ࣮ࣝࢻᛶ࡟╔┠ࡋࡓ◊✲ࡣ࡯࡜ࢇ࡝࡞࠸ࠋࡋࡓࡀࡗ࡚㸪࢔࣮ࢡࡢ཰⦰ࡀࢩ࣮ࣝࢻᛶࢆᕥྑࡋ㸪ࢩ࣮ࣝࢻ୙Ⰻ࡟࡞ࡿ༴㝤ᛶࡀ࠶ࡿࡓࡵ㸪㐣Ώᛂ⟅࡟ࡼࡿ❅⣲⃰ᗘࡢኚ໬ࢆゎ᫂ࡍࡿᚲせࡀ࠶ࡿࠋࡇࡢࡓࡵ㸪ᮏ◊✲࡛ࡣ㸪㞺ᅖẼ୰ࡢ❅⣲ࢆ⪃៖ࡋࡓࣃࣝࢫ 7,* ࢔࣮ࢡ⁐᥋࡟࠾ࡅࡿ㸪㟁ὶ❧ࡕୖࡀࡾ᫬ࡲ࡛ࡢ❅⣲⃰ᗘࡢ᫬㛫ኚ໬ࡢᩘ್ゎᯒࢆ⾜࠺ࠋ
2. ィ⟬᪉ἲ
ィ⟬ࣔࢹࣝࢆᅗ 1 ࡟♧ࡍࠋᗙᶆࡣ㸪2 ḟඖ෇⟄ᗙᶆ⣔ࡢ㍈ᑐ㇟࡜ࡋࡓࠋ㝜ᴟࡣᮦᩱ࡟ࢱࣥࢢࢫࢸࣥࢆ⏝࠸㸪ඛ➃ࡢゅᗘࡣ 60r࡜ࡋࡓࠋ㟁ᴟ㛫㊥㞳ࢆ 5 mm㸪㟁ᴟ✺ฟࡋ㛗ࡉࢆ
5mm㸪㝜ᴟࢆࢱࣥࢢࢫࢸࣥ㸪㝧ᴟࢆ SUS304 ࡜ࡋࡓࠋ࢞ࢫࡣ
0.1 MPa ࡛࠶ࡾ㸪ࢩ࣮ࣝࢻ࢞ࢫࡣ࢔ࣝࢦࣥࢆ 4 slm ࡛྿࠿ࡏࡿタᐃ࡜ࡋ㸪㞺ᅖẼ࢞ࢫࡣ❅⣲࡜ࡋࡓࠋィ⟬௬ᐃ࡜ࡋ࡚㸪ࣉࣛࢬ࣐ࡣᒁᡤ⇕ᖹ⾮㸦LTE㸧≧ែࡀᡂ❧ࡋ㸪ᒙὶ࡛࠶ࡾ㸪ᨺᑕࡢ⮬ᕫ྾཰㸪ᮦᩱࡢ⁐⼥㸪⵨Ⓨࡢ⌧㇟ࡣ⪃៖ࡏࡎ㸪⁐⼥ụᖹ㠃ࡣᖖ࡟ᖹ㠃࡜ࡋࡓࠋ㟁ὶࡣ࣮࣋ࢫ㟁ὶ 50 A㸪ࣆ࣮ࢡ㟁ὶ 150 A ࡜ࡋ㸪㐣Ώᛂ⟅ࡢࡳࡢ᳨ウࢆ⾜࠺ࡓࡵ㸪ึᮇ್࠿ࡽ㑄⛣᫬㛫 1.0 ms ୍࡛ᗘࡔࡅ❧ࡕୖࡆࡓ㟁ὶἼᙧ࡜ࡋࡓࠋ
㟁ὶึᮇ್࡟ࡣ 50 A ࡢ≀ᛶࢆ⏝࠸ࡓࠋࡲࡓ㸪୍ᐃ㟁ὶ 50㹼
150 A ࡟ࡘ࠸࡚ࡶࡑࢀࡒࢀィ⟬ࢆ⾜ࡗࡓࠋᮏィ⟬࡟࠾࠸࡚㸪ࢩ࣮ࣝࢻ࢞ࢫ࡬ࡢ❅⣲⃰ᗘࢆ⟬ฟࡍࡿୖ࡛௨ୗࡢᘧࢆ⏝࠸ࡓࠋῧ࠼Ꮠࡢ 1 ࡀ࢔ࣝࢦࣥ㸪2 ࡀ❅⣲࡛࠶ࡿࠋ࣭⢓ᛶ㏆ఝᘧ

D

2 2 1/ M1  1/ M 2

ᅗ 1. ィ⟬ࣔࢹࣝ0.5^ Ȩ12 /ș12Ȟ12 M 1 0.25  Ȩ22 /ș22Ȟ22 M 0.25 `࣭⛣ὶᣑᩓ᪉⛬ᘧw
1 w
rȨvr C 
rȨvz
r wr
wz

wC · w §
wC ·
1 w §
¨ rȨD
¸  ¨ rȨD¸
r wr ©
wr ¹ wz ©
wr ¹− 27 −

3. ⤖ᯝ࠾ࡼࡧ᳨ウᅗ 2 ࡟㸪㍈୰ᚰ(r = 0 mm)㸪⁐⼥ụ㏆ഐ(z = 34.9mm)࡟࠾
ࡅࡿ㸪❅⣲⃰ᗘࡢ᫬㛫ኚ໬ࢆ♧ࡍࠋᐃᖖ 50 A ࡛ࡣ㸪0.45%
࡛࠶ࡾ㸪ᐃᖖ 150 A ࡛ࡣ㸪0.18%࡜࡞ࡗࡓࠋ⤖ᯝ࡜ࡋ࡚㸪ࣃࣝࢫ㟁ὶ᫬࡛ࡣ㸪᫬㛫⤒㐣࡟ࡼࡾ㸪❅⣲⃰ᗘࡀ࣮࣋ࢫ㟁ὶࡢ್࡬పୗࡋࡓࠋࡲࡓ㸪㟁ὶ㑄⛣᫬࡛࠶ࡿ 1.0 ~ 2.0 ms ࡟࠾࠸࡚㸪❅⣲⃰ᗘࡢపୗࡣ㸪㟁ὶࡢቑຍ࡟ᑐࡋ࡚㸪᫬㛫ⓗ࡟㏣ᚑࡋ࡞࠿ࡗࡓࠋࡇࢀࡣ㸪㟁ὶ❧ࡕୖࡀࡾ᫬࡟࠾ࡅࡿ㸪ᗘࡢ㐣Ώᛂ⟅࡟ࡼࡾ㸪❅⣲ࡢΰྜ⌧㇟࡟ᐤ୚ࡍࡿᑐὶ࡜ᣑ
ᩓࡀኚ໬ࡋࡓࡓࡵ࡛࠶ࡿࠋᅗ 3 ࡟㟁ὶ❧ࡕୖࡀࡾ┤ᚋ 2.0
ms㸪ᅗ 4 ࡟ᐃᖖ 150 A ࡢ࣌ࢡࣞᩘ࡜≀㉁⛣ືὶ᮰ࡢ࣋ࢡࢺ

ᅗ 2. ᫬㛫ኚ໬࡟࠾ࡅࡿ㍈୰ᚰ㸪ࣝศᕸࢆࡑࢀࡒࢀ♧ࡍࠋ⤖ᯝ࡜ࡋ࡚㸪ࣃࣝࢫ㟁ὶ᫬࡛ࡣ㸪⁐⼥ụ㏆ഐࡢ❅⣲⃰ᗘ㝜ᴟ┤ୗ࡟࠾࠸࡚㸪࣌ࢡࣞᩘࡀᑠࡉࡃ࡞ࡗࡓࠋࡇࡢࡇ࡜࠿ࡽ㸪ᐃᖖ 150 A ࡼࡾ❅⣲ࢆ྿ࡁὶࡍᑐὶࡢᨭ㓄ࡀᑠࡉࡃ࡞ࡗࡓࠋ
ࡇࢀࡣ㸪㟁ὶࡢ❧ࡕୖࡀࡾ᫬࡟㸪㟁ὶࡢቑຍ࡟ᑐࡋ࡚㸪 ᗘࡢቑຍࡀ᫬㛫ⓗ࡟㏣ᚑࡋ࡞࠸ࡓࡵ㸪 ᗘపୗ࡟ࡼࡾ㸪ὶ㏿ࡀపୗࡋࡓࡓࡵ࡛࠶ࡿࠋࡲࡓ㸪ࢩ࣮ࣝࢻ࢞ࢫෆ࡬ࡢ❅⣲ΰධ㔞ࡣ㸪ࣀࢬࣝ㏆ഐ࠿ࡽቑຍࡋ࡚࠸ࡃࠋࡇࢀࡣ㸪㝜ᴟ㏆ഐ࡛ෆྥࡁࡢᑐὶࡢᨭ㓄ࡀᙉࡃ࡞ࡾ㸪❅⣲ࢆᕳࡁ㎸ࡳࡸࡍࡃ࡞ࡗࡓࡓ
ࡵ࡛࠶ࡿࠋࡇࡢ⌮⏤࡜ࡋ࡚ࡣ㸪 ᗘࡢቑຍࡀ㍈୰ᚰ࠿ࡽቑຍ
ࡍࡿࡇ࡜࡛㸪㝜ᴟ㏆ഐ࡟࠾࠸࡚㟁ὶᐦᗘࡀୖ᪼ࡋ㸪㟁☢ຊࡀቑຍࡋࡓࡓࡵ࡛࠶ࡿࠋࡋࡓࡀࡗ࡚㸪㐣Ώᛂ⟅࡟ࡼࡿᗘࡢኚ໬࡟ࡼࡗ࡚㸪㍈୰ᚰ㸪⁐⼥ụ㏆ഐࡢ❅⣲⃰ᗘࡀୖ᪼ࡍࡿࡇ࡜
ࡀ♧ࡉࢀࡓࠋ

ᅗ 3. 㟁ὶ❧ࡕୖࡀࡾ┤ᚋࡢ࣌ࢡࣞᩘ࡜≀㉁⛣ືὶ᮰ศᕸ

4. ࡲ࡜ࡵ 㐣Ώᛂ⟅࡟ࡼࡿ❅⣲⃰ᗘ࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓࠋ⤖ᯝ࡜ࡋ࡚㸪㐣Ώᛂ⟅࡟ࡼࡾ㸪㍈୰ᚰ㸪⁐⼥ụ㏆ഐࡢ❅⣲⃰ᗘࡀୖ᪼ࡋࡓࠋࡇࢀࡣ㸪㐣Ώᛂ⟅࡟ࡼࡾ㸪 ᗘࡀపୗࡍࡿࡇ࡜࡟ࡼࡿ㸪㝜ᴟ┤ୗࡢὶ㏿ࡢపୗࠋࡲࡓ㸪㝜ᴟ㏆ഐ࡛㟁☢ຊࡀࡒ࠺࠿ࡍ
ࡿࡇ࡜࡛㸪ࣀࢬࣝ㏆ഐ࡛❅⣲ࢆᕳࡁ㎸ࡳࡸࡍࡃ࡞ࡿࡓࡵ࡛࠶
ࡿࠋ
5. ཧ⪃ᩥ⊩(1) Y. Hirata: Pulsed Arc Welding, J. Japan Welding Soc., 71,
pp.389-404. (2002).
(2) ⢄஭ᖹ, ᒾᑿᚭ, ‫‮‬ᮏ㞞ᜨ: ࠕࣃࣝࢫ࢔࣮ࢡ࡟࠾ࡅࡿ
㝧ᴟ࡬ࡢ⇕ὶ᮰࡟ཬࡰࡍ㟁ὶ❧ࡕୖࡀࡾ㑄⛣᫬㛫ࡢ

ᅗ 4. ᐃᖖ 150 A ࡢ࣌ࢡࣞᩘ࡜≀㉁⛣ືὶ᮰ศᕸ

ᐤ୚ࠖ, 㟁ẼᏛ఍ㄽᩥㄅ B, Vol.133, No.5, pp.409-416( 2012).
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 28 −

࢔࣮ࢡࣉࣛࢬ࣐ࡢⓎ⏕࡜ไᚚ࠾ࡼࡧᮦᩱࣉࣟࢭࢫ࡬ࡢᛂ⏝ 㕲➽ᅽ᥋࡬ࡢ⁐⼥ụ☢Ẽไᚚ࢔࣮ࢡ⁐᥋ἲࡢ㐺⏝࡟㛵ࡍࡿ◊✲Ἀ⦖┴ᕤᴗᢏ⾡ࢭࣥࢱ࣮ ᢏ⾡ᨭ᥼⌜Ჴཎ 㟹 ┠ⓗ
⁐⼥ụ☢Ẽไᚚ࢔࣮ࢡ⁐᥋ἲ㸦௨ୗ㸪(&03 ἲ㸧ࡣ㸪

㟁ὶ䛾ྥ䛝
䠄஺ὶ䠅

☢໬䝁䜲䝹

⁐⼥ụ㏆ഐ࡟☢⏺ࢆ୚࠼ࡿࡇ࡜࡟ࡼࡗ࡚㟁☢ຊࢆⓎ㕲➽⏕ࡉࡏࡿࡇ࡜࡛㸪Ⅳ⣲㗰࠾ࡼࡧࢫࢸࣥࣞࢫ㗰ࡢ⁐᥋᫬࡟㔜ຊ࡟㉳ᅉࡍࡿ⁐⼥㔠ᒓࡢᆶࢀୗࡀࡾࡢ㜵Ṇ࡟୍ᐃࡢຠᯝࡀᚓࡽࢀࡿࡇ࡜ࡀࢃ࠿ࡗ࡚࠸ࡿ㸬㟁☢ຊ

☢໬䝁䜲䝹

㟁☢ຊ䛾
ྥ䛝

ࡣ⁐⼥㔠ᒓࡔࡅ࡛࡞ࡃ࢔࣮ࢡࢆ೫ྥࡉࡏࡿࡇ࡜࠿ࡽ㸪ࡇࢀࡲ࡛ࡣ࢔࣮ࢡࡢᙳ㡪ࢆ࡛ࡁࡿࡔࡅᢚไࡍࡿ᪉ἲ

☢⏺䛾ྥ䛝
㕲➽

࡟ࡘ࠸᳨࡚ウࡋ࡚ࡁࡓ㸬ᅗ  (&03 ἲ࡟ࡼࡿ㕲➽⁐᥋ࡢᴫᛕᅗ

࡜ࡇࢁ࡛㸪Ἀ⦖┴ෆࡢᘓタ⌧ሙ࡛ᗈࡃ⾜ࢃࢀ࡚࠸ࡿ㕲➽ࡢ᥋ྜ࡛ࡣ㸪ᚑ᮶ࡢ࢞ࢫᅽ᥋࡟᭰ࢃࡿ᥋ྜἲ
࡜ࡋ࡚㸪ᡭ⁐᥋⏝ࡢ⁐᥋㟁※ࢆ౑⏝ࡋࡓ㟁Ẽᅽ᥋࡟☢໬䝁䜲䝹ࡼࡿ᪋ᕤࡶヨࡳࡽࢀ࡚࠸ࡿ㸬㧗㟁ὶ※ࢆ⏝࠸ࡓ࢔ࢵࣉࢭࢵࢺᅽ᥋࡜ࡣ␗࡞ࡾ㸪ᡭ⁐᥋⏝ࡢ⁐᥋㟁※ࡣ⁐᥋㟁ὶࡀᑡ࡞࠸ࡇ࡜࠿ࡽ㸪᢬ᢠⓎ⇕ࡀᮇᚅ࡛ࡁ࡞࠸
ࡓࡵ㸪࢔࣮ࢡࢆⓎ⏕ࡉࡏ࡚⁐⼥᥋ྜࡍࡿᚲせࡀ࠶ࡿ㸬

AVCࡋ࠿ࡋ࡞ࡀࡽ㸪࢔࣮ࢡࡢⓎ⏕ࢆᏳᐃᣢ⥆ࡉࡏࡿࡇ࡜
㕲➽ࡀᅔ㞴࡛࠶ࡾ㸪࢞ࢫᅽ᥋࡟ẚ࡭ᮍࡔⰋዲ࡞᥋ྜࡀ⾜࠼࡚࠸࡞࠸ࡢࡀ⌧≧࡛࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪(&03 ἲࢆ㟁Ẽᅽ᥋ࡢ࢔࣮ࢡไ

ᚚ࡟㐺⏝ࡍࡿࡇ࡜࡛㸪࢔࣮ࢡࢆ㟁☢ຊ࡛ไᚚࡋపᐜᅗ  ᐇ㦂⿦⨨ᴫ␎ᅗ㔞ࡢ⁐᥋㟁※࡛ࡶᏳᐃࡋ࡚㕲➽ࡢ᥋ྜࡀྍ⬟࡞⁐᥋᪉ἲ࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓ㸬 ᐇ㦂᪉ἲ
㻝㻤㻡ᮏ◊✲࡛ࡣ㸪㕲➽ࡢ⁐᥋࡟࠾࠸࡚㸪࢔࣮ࢡࡢⓎ⏕ࢆᏳᐃᣢ⥆ࡉࡏࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿ㸬ᅗ㸯࡟(&03 ἲ࡟ࡼࡿᴫᛕᅗࢆ♧ࡍ㸬⁐᥋㒊࡟㕲➽ࡢ᥋ྜ᪉⿕そ㖡⥺䠄160ᕳ䠅

ྥ࡟ᑐࡋ࡚ᆶ┤᪉ྥ࡟௜୚ࡍࡿ࡜㸪㕲➽࡟ὶࢀࡿ㟁
㕲ᚰ
䠄ĳ䠅

ὶ࡟࿧ᛂࡋ࡚㸪☢ሙࡢ᪉ྥ࡜ᆶ┤࡞㟁☢ຊࡀⓎ⏕ࡍೌ䛔䝻䞊䝷ࡿ㸬ࡇࡢ㟁☢ຊ࡟ࡼࡗ࡚࢔࣮ࢡࡢ☢Ẽ྿ࡁ⌧㇟ࡀ㉳ᅗ  ☢໬ࢥ࢖ࣝࡢヲ⣽ᅗࡁࡿࡀ㸪⁐᥋࡟⏝࠸ࡿ㟁※ࡣ஺ὶ⁐᥋ᶵࢆ฼⏝ࡋ࡚࠸ࡿࡓࡵ㸪㕲➽࡟ὶࢀࡿ㟁ὶࡢ஺␒࡟ᛂࡌ࡚㟁☢ຊࡑࡇ࡛㸪ᅗ 2 ࡢᐇ㦂⿦⨨ࢆ⏝࠸࡚㟁Ẽᅽ᥋᫬࡟࠾

ࡢ᪉ྥࡶ஺஫࡟࡞ࡿࡇ࡜࠿ࡽ㸪࢔࣮ࢡࡶᙉไⓗ࡟೫ࡅࡿ࢔࣮ࢡไᚚࡢྍ⬟ᛶ࡟ࡘ࠸࡚㸪☢ሙࢆ௜୚ࡋࡓ

ྥࡉࡏࡽࢀ㸪⤖ᯝⓗ࡟࢔࣮ࢡࢆᏳᐃᣢ⥆࡛ࡁࡿྍ⬟㝿࡟Ⓨ⏕ࡍࡿ㟁☢ຊࡀ࢔࣮ࢡ࡬ཬࡰࡍᙳ㡪ࢆㄪ࡭ࡿᛶࡀ࠶ࡿ㸬ࡓࡵ࡟㸪⁐᥋ᐇ㦂ࢆ⾜ࡗࡓ㸬౑⏝ࡋࡓ㕲➽ࡣ D19㸦බ⛠┤ᚄ㸸19.1mm㸧࡛࢔− 29 −

࣮ࢡⅬᘼࡣ୍ᗘ▷⤡ࡉࡏࡓᚋ࡟㸪࢔࣮ࢡࡀᣢ⥆Ⓨ⏕
ࡍࡿ㊥㞳ࡲ࡛⛣ືࡉࡏ࡚⾜ࡗࡓ㸬࢔࣮ࢡࡢほᐹ࡟ࡣ㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ
㸦FANTOM V311 ओࣀࣅࢸࢵࢡ㸧ࢆ౑⏝ࡋࡓ㸬࡞࠾㸪⁐᥋㟁ὶࡣ 250[A]㸪⁐᥋㒊࡟Ⓨ⏕ࡉࡏࡿ☢
᮰ᐦᗘࡣ㸪30[mT]࡜ࡋࡓ㸬☢໬ࢥ࢖ࣝࡣᅗ 3 ࡟♧ࡍࡼ࠺࡟㸪ࢥࡢᏐᆺࡢ㌾㗰ᛶ࣮ࣚࢡ࡟ȭ20㹫㹫ࡢ㕲ᚰࢆྲྀࡾ௜ࡅࡑࡢ࿘ࡾ࡟⪏⇕⿕そ㖡⥺ࢆྛࠎ320 ᅇᕳࡁࡘࡅ࡚࠸ࡿ㸬ヨ㦂∦࡟᥋ࡍࡿ㒊ศࡣ㸪⁐⼥ụ࡟ᑐࡋ࡚ᒁ㒊ⓗ࡞☢ሙࢆⓎ⏕ᅗ  ☢ሙࢆ௜୚ࡋ࡞࠸ሙྜࡢ࢔࣮ࢡⓎ⏕≧ἣ࡛ࡁࡿࡼ࠺࡞ᙧ≧ࡢ☢ᴟඛ➃ࢆྲྀࡾ௜ࡅ࡚࠸ࡿ㸬☢໬ࢥ࢖ࣝ࡟ࡣ㸪Ᏻᐃ໬㟁※࡜ࣇ࢓ࣥࢡࢩࣙࣥࢪ
࢙ࢿ࣮ࣞࢱࡀ᥋⥆ࡋ࡚࠶ࡾ㸪௵ពࡢἼᙧࢆᣢࡗࡓ☢
ሙࢆⓎ⏕ࡍࡿࡇ࡜ࡶྍ⬟࡛࠶ࡿ㸬 ᐇ㦂⤖ᯝ ᅗ  ࡟☢ሙࢆ୚࠼࡞࠸ሙྜࡢ࢔࣮ࢡⓎ⏕᫬ࡢ㟼Ṇ⏬ࢆ♧ࡍ㸬࢔࣮ࢡࡣ㕲➽ࡢᚋ᪉࡛ࡢࡳⓎ⏕ࡋ㸪᩿⥆ⓗ࡞Ⓨ⏕ࡸ▷⤡࡟ࡼࡾᾘᘼࡋࡓ㸬௚ࡢヨ㦂∦࡟ࡘ࠸
࡚ࡶྠᵝ࡟㸪୍ᗘⅬᘼࡋࡓࡢࡕࡣ㸪࢔࣮ࢡࡣ⛣ືࡍD ☢Ẽ྿ࡁ᪉ྥ ๓᪉ࡿࡇ࡜࡞ࡃ㸪ࡑࡢሙᡤ࡟ᅛᐃࡉࢀ࡚࠸ࡓ㸬 ࡇࢀ࡟ᑐࡋ㸪☢ሙࢆ௜୚ࡋࡓሙྜࡣ㸪ᅗ  ࡟♧ࡍࡼ࠺࡟஺ὶ㟁※࡟࿧ᛂࡋࡓ࢔࣮ࢡࡢⓎ⏕ࡀࡳࡽࢀ㸪㕲➽ࡢ๓᪉࡜ᚋ᪉࡛஺஫࠿ࡘ㐃⥆ⓗ࡟࢔࣮ࢡࡀⓎ⏕ࡍࡿࡢࡀ☜ㄆࡉࢀࡓ㸬 ᅗ㸴࡟ࡣ࢔࣮ࢡᾘᘼᚋࡢ㕲➽➃㠃ࡢ෗┿ࢆ♧ࡍ㸬㕲➽ୖୗ࡜ࡶࠊ➃㠃࡟☢ሙࡢ᪉ྥ࡜ᆶ┤࡞⁐ⴠࡕࡀ☜ㄆ࡛ࡁࡿ㸬  ⤖ㄽ

E ☢Ẽ྿ࡁ᪉ྥ ᚋ᪉㕲➽ࡢ㟁Ẽᅽ᥋᫬࡟࠾࠸࡚㸪☢ሙࢆ௜୚ࡍࡿࡇ࡜ᅗ  ☢ሙࢆ௜୚ࡋࡓሙྜࡢ࢔࣮ࢡⓎ⏕≧ἣ࡛࢔࣮ࢡࡢᏳᐃᣢ⥆࡟୍ᐃࡢຠᯝࡀ࠶ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬௒ᚋࡣ㸪⁐᥋㟁ὶ࡞ࡽࡧ࡟☢᮰ᐦᗘࡢ᭱㐺᮲௳ࡸ࢔ࣝࢦࣥ࡞࡝ࡢ㞺ᅖẼ୰࡟࠾ࡅࡿᐇ㦂ࢆ⾜࠸㸪࣮࢜ࢡࡢᏳᐃᣢ⥆᮲௳ࢆ᥈⣴ࡍࡿணᐃ࡛࠶ࡿ㸬ᅗ  ࢔࣮ࢡⓎ⏕ᚋࡢ➃㠃ࡢ≧ἣ㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 30 −

߶௃ྙ߱Νଲেͳͪ͢Πϕιρφ༻ંͶ‫ͤؖ‬Ζ‫ڂݜ‬‫ۿ‬ຌ୉ָ ઎୼Ռָ‫ڂݜ‬෨ ࣋࡜ऴ‫ن‬‫ۿ‬ຌ୉ָ୉ָӅ ྜྷ‫ڷ‬ฑɾ‫ݬٸ‬༑ ॻ࿨
୉ࡗ୉ָં߻Ռָ‫ॶڂݜ‬ɾ‫ڠ‬ಋ‫ڂݜ‬ҽ੏ౕ͹‫༽׈‬ʤ ೧ౕʥͶΓΕɾ‫ࡑݳ‬ΉͲͶҡ‫ܙ‬๰߱͹Πϕιρφ༻ંͶ͕͏ͱɼన઀͵ుླྀʀѻྙͲં߻ͤΗͻɼ࠹న͵ζϣʖϩ೦͹ં߻෨΃౦༫͕Γ;ॉ෾͵๴ΔΊ͹֮ฯ͗Ն೵ͳ͵ΕɼPP ͹֐‫ܚ‬Ν༙ͤΖ୉‫ͦܚ‬Ξஇึ‫۔ک‬Ͷ͕͏ͱ΍‫ܩ‬घްིΝ ͶͲ͘Ζࣆ֮͗೟Ͳͪ͘ɽຌ‫Ͳڂݜ‬ͺɼҡ‫ܙ‬๰߱Ͳಚͪஎ
‫ݡ‬Νۛ೧ऩགྷ͗֨୉͢ͱ͏Ζ߶௃ྙ߱Ͳ͹Πϕιρφ༻ંͶԢ༽ͤΖࣆΝ໪దͳͤΖɽ ࣰ‫ݩ‬๏๑ Πϕιρφ༻ં ‫ܩ‬घްི ͳ͵Ζర‫ ܚ۔‬PP ͹ 03D ‫߶څ‬௃ྙ߱͹Πϕιρ
φ༻ંড়݇Ν఑Ҍড়݇ͳ͢ɼͨ͹ড়݇Ν‫خ‬६ͶՅѻྙ෈ଏড়݇ɼ೦ྖ෈ଏড়݇Ν६ඍ͢ͱɼ
ં߻‫ݳ‬ে͹ҩ͏Ν؏ࡱͪ͢ɽ ್࣏‫್ݫ‬৯Իౕ‫ܯ‬଎ ༻ંգఖͶ͕͏ͱɼ߶ଐౕΩϟϧͳૌΊ߻Κͦͱ್࣏‫್ݫ‬৯Իౕ‫ܯ‬଎Νߨ͏ɼѻંգఖ‫;ٶ‬Իౕ෾ා͹ՆࢻԿΝߨͮͪɽ ࣰ‫݃ݩ‬Վ‫ࡱߡ;ٶ‬)LJ Ͷ఑Ҍড়݇Ͷ͕͜Ζ߶ଐౕΩϟϧͲࡳӪͪ͢ં߻෨͹֐؏ࣺਇΝࣖͤɽ භ͖Δ භͶ͖͜ͱં߻෨સର͗੼೦͢ͱ͏͘ɼ භ͖Δ  භͶ͖͜ͱં߻෨͹๴ΔΊ͗୉͚͘͵ͮͱ͏͚͹֮͗೟Ͳ͘Ζɽં߻෨ͺ͵ΌΔ͖Ͷ๴ΔΊɼஇ໚੷͗ॉ෾͵୉͘͠Ͳ
͍ΖͪΌ݊સͶં߻͗ड़པͱ͏Ζͳ‫͓ݶ‬Ζɽ)LJ Ͷ఑Ҍড়݇Ͷ͕͜Ζ್࣏‫್ݫ‬৯Իౕ‫ܯ‬଎ͶΓΖં߻෨͹Իౕ෾ාΝࣖͤɽ‫͵୼ۅ‬Իౕ৏তͺ‫ݡ‬ΔΗͥɼˈ͖Δ ˈ͹Իౕ͗ଡ͚֮೟Ͳͪ͘ɽ)LJ Ͷ఑Ҍড়݇ɼՅѻྙ෈ଏড়݇ɼ೦ྖ෈ଏড়݇Ͷ͕͜ΖӀ௃ࢾ‫ޛݩ‬͹ࢾ‫ݩ‬ฤ֐؏ࣺਇΝࣖͤɽ఑Ҍড়݇ͳ೦ྖ෈ଏড়݇Ͳͺ฾ࡒഃஇɼՅѻྙ෈ଏড়݇Ͳͺ೦Ӫ‫ڻ‬෨ഃஇ֮͗೟͠Ηͪɽࠕյ͹ࣰ‫Ͳݩ‬఑Ҍড়݇‫;ٶ‬Յѻྙ෈ଏড়݇ͺ૟ఈ͢ͱ͏ࣰͪ‫݃ݩ‬ՎΝಚΖ͞ͳ͗ड़པͪɽ͖͢͢ɼ೦ྖ෈ଏড়݇Ͳͺ೦Ӫ‫ڻ‬෨ഃஇΝ૟ఈ͢ͱ͏ͪ͗ɼ͕ͨ
Δ͚༻ં࣎͹೦ྖ͗న౲Ͷ෈ଏ͢ͱ͏͵͖ͮͪ͞ͳ͗‫ݬ‬ҾͲɼ฾ࡒഃஇͳ͏ࣰ͑‫݃ݩ‬Վͳ͵ͮͪɽ ݃‫ݶ‬03D ‫߶څ‬௃ྙ߱͹Πϕιρφ༻ંͶ͕͏ͱɼన઀͵ుླྀʀѻྙͲં߻෨Ͷ࠹న͵ζϣʖϩ೦Ν౦༫ͤΗͻ߶௃ྙ߱Ͳ΍݊સ͵Πϕιρφ༻ં͗Ն೵Ͳ͍Ζ͞ͳΝࣖͪ͢ɽΉͪɼં߻஦Ͷ͕͏ͱ ˈ͖Δ ˈ͹ં߻Իౕ͹֮ฯ͗॑གྷͲ͍Ζ͞ͳΝ໎Δ͖Ͷͪ͢ɽ− 31 − )LJ ߶ଐౕΩϟϧͲࡳӪͪ͢ં߻෨͹֐؏ࣺਇ       )LJ̐ ್࣏‫್ݫ‬৯Իౕ‫ܯ‬଎݃Վ           )LJ̑ Ӏ௃ࢾ‫݃ݩ‬Վࠪ ં߻஦͹֐؏ࣺਇ ӊ ં߻஦͹Իౕ෾ා   ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁΦϋϩάʖ੏‫ָޜ‬෾໼ʥ− 32 −

䝽䜲䝲⁐⼥ไᚚ䜢⏝䛔䛯 Ar-GMA ⁐᥋䛾Ᏻᐃᛶྥୖᢏ⾡ᅜ❧◊✲㛤Ⓨἲே ≀㉁࣭ᮦᩱ◊✲ᶵᵓ ᵓ㐀ᮦᩱ◊✲ᣐⅬ
୰ᮧ ↷⨾
䠍䠊┠ⓗ㻌
⣧ Ar ࢩ࣮ࣝࢻ࢞ࢫ୰࡛ࢯࣜࢵࢻ࣡࢖ࣖࢆ⏝࠸࡚ GMA ⁐᥋ࢆ⾜࠺࡜࣡࢖ࣖඛ➃㒊࡟㛗ࡃఙࡧࡓ⁐⼥㔠ᒓᾮᰕࡀ⏕ࡌࠊ୙つ๎࡞▷⤡࡞࡝ࡀ⏕ࡌ࡚⁐᥋ࡀ୙Ᏻᐃ࡟࡞ࡿࠋ࣡࢖ࣖඛ➃㒊ࡢ⁐⼥ࢆไᚚࡍࡿࡓࡵ࡟ࠊ࣮ࣞ
ࢨࢆ࣡࢖ࣖඛ➃㒊࡟↷ᑕࡍࡿ࡜ࠊ࣡࢖ࣖඛ➃࡟⏕ࡌࡓ⁐⼥㔠ᒓᾮᰕ (CLM: Column of molten liquid metal) ࢆษ᩿ࡋ࡚▷ࡃࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡑࡢ⤖ᯝࠊ⁐⼥㔠ᒓᾮᰕࡢ୙つ๎࡞▷⤡ࡀᅇ㑊ࡉࢀࠊAr-GMA ⁐᥋ࡢᏳᐃᛶࡀྥୖࡋࡓࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣ⁐⼥㔠ᒓᾮᰕࢆ࣮ࣞࢨ࡛Ᏻᐃ࡟ษ᩿ࡍࡿࡓࡵࡢ࣮ࣞࢨ↷ᑕ᮲௳࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓࠋ
㸰䠊ᐇ㦂᪉ἲ
ᐇ㦂࡟⏝࠸ࡓ⿦⨨ࡢᴫ␎ࢆᅗ㸯࡟♧ࡍࠋ6 kW ࡢࣇ࢓࢖ࣂ࣮࣮ࣞࢨ (ࣇ࢓࢖ࣂ࣮ᚄ 50ȣm㸪↔Ⅼ㊥㞳:150mm)ࢆ౑⏝ࡋࡓࠋ࣮ࣞࢨࡢࣃࣝࢫࣆ࣮ࢡ᫬㛫ࡣ 2㹼20 msࠊ࣮ࣞࢨࡢࣃࣝࢫ࿘Ἴᩘࡣ 5㹼50 Hz ࡛࠶ࡿࠋࢺ࣮
ࢳ࣮ẕᮦ㛫㊥㞳ࢆ 25 mm ࡜ࡋࠊࢥࣥࢱࢡࢺࢳࢵࣉඛ➃㸦ࣀࢬࣝඛ➃㸧࠿ࡽ 15 mm 㞳ࢀࡓ࣡࢖ࣖ⾲㠃ࢆ↔Ⅼ࡜ࡍࡿࡼ࠺࡟࣮ࣞࢨ࣊ࢵࢻࡢ఩⨨ࢆㄪᩚࡋࡓࠋ࣮ࣞࢨࡢ↷ᑕ᮲௳ࡢ᭱㐺໬ࢆ᳨ウࡍࡿࡓࡵ࡟ࠊ࣮ࣞࢨࡢࣃࣝ
ࢫࣆ࣮ࢡฟຊࠊ࣮ࣞࢨࢩࣇࢺ఩⨨ࠊࣃࣝࢫ࿘Ἴᩘࢆኚ࠼ษ᩿ᛶ⬟ࢆㄪ࡭ࡓࠋ⁐᥋ࡣ᭱኱ 500 A ࡀ౑⏝࡛ࡁࡿ
ᕷ㈍ࡢ⁐᥋ᶵࢆ⏝࠸࡚ࠊ⣧ Ar ࢩ࣮ࣝࢻ࢞ࢫ୰࡛⁐᥋ࢆ⾜ࡗࡓࠋࡇࡢ᫬ࡢࢩ࣮ࣝࢻ࢞ࢫࡢὶ㔞ࡣ 25 l/min ࡛࠶ࡿࠋᕷ㈍ࡢ㗰⏝⁐᥋࣡࢖ࣖ(࣡࢖ࣖᚄ㸸1.2 mm)ࢆ౑⏝ࡋࠊ⁐᥋᮲௳ࡣ㟁ὶ㸸240-260 Aࠊ㟁ᅽ㸸32-34 Vࠊ⁐᥋㏿ᗘ㸸35 m/minࠊ࣡࢖ࣖ㏦⤥㏿ᗘ㸸7.0 m/min ࡛࠶ࡿࠋࡉࡽ࡟⁐᥋࣡࢖ࣖࡢ⁐⼥ᣲືࢆ㧗㏿ᗘࣅࢹ࢜࢝
࣓ࣛ(᧜ᙳ㏿ᗘ㸸5000 frame/s)࡛ほᐹࡋࡓࠋ

Torch

Laser headᅗ㸯 ࣇ࢔࢕ࣂ࣮࣮ࣞࢨࢆ⏝࠸ࡓ⁐⼥㔠ᒓᾮᰕࡢษ᩿࣭㝖ཤࢩࢫࢸ࣒
㸱䠊ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ
ヨ㦂⤖ᯝࢆ⾲㸯࡟♧ࡍࠋࣃࣝࢫ࣮ࣞࢨࡢࣆ࣮ࢡ᫬ࡢ࣮ࣞࢨฟຊࡢຠᯝࢆㄪ࡭ࡿࡓࡵ࡟ࠊ࣮ࣞࢨࡢࣃࣝࢫ࿘
Ἴᩘࢆ㸯㸮㹆㹸࡜ࡋࠊࣆ࣮ࢡฟຊࢆ㸴㹩㹕࠿ࡽ㸯㹩㹕ࡲ࡛ኚ࠼࡚ヨ㦂ࢆ⾜ࡗࡓࠋࣆ࣮ࢡฟຊࡀ㸱㹩㹕௨ୖࡢヨ㦂⤖ᯝ㸯ࠊヨ㦂⤖ᯝ㸰ࠊヨ㦂⤖ᯝ㸱ࠊヨ㦂⤖ᯝ㸲࡛ࡣ࣡࢖ࣖࡢษ᩿ࡀྍ⬟࡜࡞ࡾᾮᰕࡣ⏕ᡂࡋ࡞࠸ࠋࣆ࣮
ࢡฟຊࡀ㸰㹩㹕௨ୗࡢヨ㦂⤖ᯝ㸳ࠊヨ㦂⤖ᯝ㸴࡛ࡣ࣡࢖ࣖࡢษ᩿ࡀ࡛ࡁࡎᾮᰕࡀ⏕ࡌࡿࠋࣃࣝࢫ࣮ࣞࢨࡢࣆ
࣮ࢡฟຊࡣ㸱㹩㹕௨ୖࡀᚲせ࡛࠶ࡿࠋ

− 33 −

࣮ࣞࢨࡢࣃࣝࢫ࿘Ἴᩘࡢᙳ㡪ࢆㄪ࡭ࡿࡓࡵ࡟࿘Ἴᩘࢆ㸳㹆㹸ࠊ㸯㸮㹆㹸ࠊ㸰㸮㹆㹸ࠊ㸳㸮㹆㹸࡜ኚ࠼ࡓ᮲
௳࡛ヨ㦂ࢆ⾜ࡗࡓࠋ࿘Ἴᩘࡀ㸯㸮㹆㹸௨ୖࡢヨ㦂⤖ᯝ㸯㸦㸯㸮㹆㹸㸧ࠊヨ㦂⤖ᯝ㸶㸦㸰㸮㹆㹸㸧ࠊヨ㦂⤖ᯝ㸷
㸦㸳㸮㹆㹸㸧࡛ࡣ࣡࢖ࣖࡢษ᩿ࡀྍ⬟࡜࡞ࡾᾮᰕࡣ⏕ࡌ࡞࠸ࡀࠊ㸳㹆㹸ࡢ᫬㸦ヨ㦂⤖ᯝ㸵㸧࡟ࡣᾮᰕࡀ㐃࡞ࡾᏳᐃ࡞ษ᩿ࡣ࡛ࡁࡎࠊࣃࣝࢫ࿘Ἴᩘࡣ㸯㸮㹆㹸௨ୖࡀᚲせ࡛࠶ࡿࠋ
࣮ࣞࢨ↷ᑕ఩⨨ࢆኚ࠼ࡓ᮲௳࡛ࡢ⁐᥋ヨ㦂⤖ᯝࢆ⾜ࡗࡓࠋ࣮ࣞࢨࡢ↷ᑕ᮲௳ࡣྠࡌ࡜ࡋࠊ࣮ࣞࢨ↷ᑕ఩⨨ࢆኚ࠼࡚㸦࣮ࣞࢨࢩࣇࢺࢆ㸩㸲㹫㹫࠿ࡽ㸫㸰㹫㹫ࡲ࡛ኚ࠼ࡓ㸧ษ᩿ᛶ⬟ࢆㄪ࡭ࡓࠋ࣮ࣞࢨࢩࣇࢺ࡜࣮ࣞ
ࢨࠊ࣡࢖ࣖࡢ఩⨨㛵ಀࢆᅗ㸰࡟♧ࡍࠋ࣮ࣞࢨࢩࣇࢺࡀ㸫㸯㹫㹫ࡸ㸦ヨ㦂⤖ᯝ㸯㸰㸧ࠊ㸫㸰㹫㹫ࡢ᫬㸦ヨ㦂⤖ᯝ㸯㸱㸧࡟ࡣࠊ࣮ࣞࢨࡀ⁐⼥㔠ᒓᾮᰕ࡟↷ᑕࡉࢀࡿሙྜ࡛࠶ࡿࠋࡇࡢ᫬ࡣ࣮ࣞࢨ↷ᑕ┤ᚋ࡟⁐⼥㔠ᒓᾮᰕࡀษ᩿ࡉࢀࡿࡶࡢࡢࠊࡋࡤࡽࡃࡍࡿ࡜ࠊ⁐⼥㔠ᒓᾮࡣᢡࢀ᭤ࡾ⁐⼥㔠ᒓᾮᰕࢆษ᩿ࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓࠋ
ࡇࢀ࡟ᑐࡋࠊ࣮ࣞࢨࢩࣇࢺࢆ㸮㹫㹫㸦ヨ㦂⤖ᯝ㸰㸧ࡸࠊ⁐᥋䝖䞊䝏㸩㸰㹫㹫㸦ヨ㦂⤖ᯝ㸯㸯㸧࡜ࡍࡿ࡜ࠊ⁐⼥㔠ᒓᾮᰕࡢᏳ

䝺䞊䝄䝅䝣䝖

ᐃ࡞ษ᩿ࡀྍ⬟࡜࡞ࡾⰋዲ࡞ࣅ࣮ࢻᙧ≧ࡀᚓࡽࢀࡓࠋ
࣮ࣞࢨࢩࣇࢺࢆ㸩㸲㹫㹫㸦ヨ㦂⤖ᯝ㸯㸮㸧࡜ࡋࠊࢺ࣮ࢳ
࡟㏆࠸ᅛ┦㒊࡟࣮ࣞࢨࢆ↷ᑕࡋࡓሙྜ࡟ࡣ࣡࢖ࣖࡢษ᩿
ࡀྍ⬟࡜࡞ࡾᾮᰕࡣ⏕ࡌ࡞࠸ࠋࡋ࠿ࡋࠊࢺ࣮ࢳ఩⨨࡟㏆

㻝㻡㼙㼙
䝺䞊䝄ග

࠸఩⨨࡛࣡࢖ࣖࡀษ᩿ࡉࢀࡓ┤ᚋ࡛ࡣࠊ࢔࣮ࢡ㛗ࡀ㛗ࡃ࡞ࡿࡓࡵ㟁ὶࡢῶᑡ࡜㟁ᅽࡢቑຍࡀᛴ࡟⏕ࡌࡿࡓࡵࠊ⁐᥋᮲௳ࡢኚືࡀ኱ࡁࡃ࡞ࡾ⁐᥋ࡀ୙Ᏻᐃ࡟࡞ࡿഴྥࡀㄆ
ࡵࡽࢀࡓࠋࡇࡢࡓࡵࠊᅛᾮඹᏑ┦㒊ࡢ㡿ᇦ࠿ࡽ㞳ࢀ࡚ࢺ࣮ࢳ࡟㏆࠸ᅛ┦㒊ࢆษ᩿ࡍࡿࡇ࡜ࡣ⁐᥋Ᏻᐃᛶࢆ☜ಖࡍࡿୖ࡛ᮃࡲࡋࡃ࡞࠸ࠋࡍ࡞ࢃࡕࠊ⁐⼥㒊࡜ᅛ┦㒊ࡀඹᅗ㸰 ࣇ࢔࢕ࣂ࣮࣮ࣞࢨࡢ↷ᑕ఩⨨Ꮡࡋࡓ㡿ᇦ࠿ࡽ࣡࢖ࣖ㸲ಶศ௨ୖࢺ࣮ࢳഃ࡟㞳ࢀࡓᅛ┦㒊࡛ࡣ⁐᥋᮲௳ࡢኚືࡀ⏕ࡌࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ⾲㸯 ࣇ࢔࢕ࣂ࣮࣮ࣞࢨࢆ⏝࠸ࡓ⁐⼥㔠ᒓᾮᰕࡢษ᩿᮲௳
䝺䞊䝄ฟຊ᮲௳
ヨ㦂⤖ᯝ

䝺䞊䝄
Ⓨ᣺ᙧែ

㻝

㻼㼃

㻞

⁐᥋᮲௳

䝟䝹䝇䝢䞊䜽
䝟䝹䝇࿘Ἴᩘ
↔Ⅼ఩⨨
᫬㛫

ษ᩿ᛶ⬟

⁐⼥㔠ᒓᾮ
ᰕ䛾᭷↓

㻟㻞㻚㻣

䕿

⏕ᡂ䛧䛺䛔

㻞㻠㻢

㻟㻞㻚㻣

䕿

⏕ᡂ䛧䛺䛔

㻗㻞

㻞㻡㻝

㻟㻞㻚㻡

䕿

⏕ᡂ䛧䛺䛔

㻝㻜

㻗㻞

㻞㻡㻜

㻟㻞㻚㻡

䕿

⏕ᡂ䛧䛺䛔

㻝㻜

㻝㻜

㻗㻞

㻞㻡㻞

㻟㻞㻚㻡

㽢

⏕ᡂ䛩䜛

㻜

㻝㻜

㻝㻜

㻗㻞

㻞㻢㻝

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㽢

⏕ᡂ䛩䜛

㻢

㻜

㻡

㻞㻜

㻗㻞

㻞㻢㻝

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䕧

⏕ᡂ䛩䜛

㻢

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㻡

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⏕ᡂ䛧䛺䛔

䝢䞊䜽ฟຊ

䝺䞊䝄䝅䝣䝖

㟁ὶ

㟁ᅽ

䠄䡇㼃㻕

䠄䡉䡉䠅

䠄㻴㼦㻕

䠄䡉䡏䠅

㻔㼙㼙㻕

䠄㻭㻕

䠄㼂㻕

㻢

㻜

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㻡

㻜

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㻠

㻜

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㻠

㻼㼃

㻟

㻜

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㻡

㻼㼃

㻞

㻜

㻢

㻼㼃

㻝

㻣

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㻤

㻼㼃

㻥

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㻢

㻜

㻡㻜

㻞

㻗㻞

㻞㻠㻟

㻟㻞㻚㻤

䕿

⏕ᡂ䛧䛺䛔

㻝㻜

㻼㼃

㻢

㻗㻠

㻝㻜

㻝㻜

㻗㻞

㻞㻟㻜

㻟㻟㻚㻞

䕿

⏕ᡂ䛧䛺䛔

㻝㻝

㻼㼃

㻢

㻗㻞

㻝㻜

㻝㻜

㻗㻞

㻞㻢㻡

㻟㻞㻚㻞

䕿

⏕ᡂ䛧䛺䛔

㻝㻞

㻼㼃

㻢

㻙㻝

㻝㻜

㻝㻜

㻗㻞

㻞㻡㻞

㻟㻞㻚㻠

䕧

⏕ᡂ䛩䜛

㻝㻟

㻼㼃

㻢

㻙㻞

㻝㻜

㻝㻜

㻗㻞

㻞㻡㻟

㻟㻟㻚㻡

䕧

⏕ᡂ䛩䜛

䕿㻦ษ᩿ྍ⬟䚷䕧䠖ึᮇ䛿ษ᩿䛷䛝䜛䛜䚸䛧䜀䜙䛟䛯䛴䛸ᾮᰕ䛜᭤䛜䜚ษ᩿䛷䛝䛺䛔䚷㽢䠖䝺䞊䝄䛷䛿ษ᩿䛷䛝䛺䛔(ඹྠ◊✲ศ㔝:࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝)− 34 −

ࢧࣈ࣐࣮ࢪ࢔࣮ࢡ⁐᥋⏝ࣇࣛࢵࢡࢫᮦ࡬ࡢⅆᒣᄇฟ≀ࡢά⏝࡟㛵ࡍࡿ◊✲㮵ඣᓥ┴ᕤᴗᢏ⾡ࢭࣥࢱ࣮ ⏕⏘ᢏ⾡㒊
ᇼஅෆᝆ௓
㸯㸬┠ⓗ
㮵ඣᓥ┴ෆ࡛ࡣⅆ○ὶሁ✚≀࡛࠶ࡿࢩࣛࢫࡀ㇏ᐩ
࡟⏘ฟࡉࢀ࡚࠸ࡿࠋ㇏ᐩ࡟࠶ࡿࢩࣛࢫࡢά⏝ࡢ୍⎔࡜ࡋ࡚ࢧࣈ࣐࣮ࢪ࢔࣮ࢡ⁐᥋⏝ࡢࣇࣛࢵࢡࢫᮦ࡬ࡢᛂ
⏝࡟╔┠ࡋ㸪ᮏ◊✲ࢆ⾜࠺ࠋࢩࣛࢫࡣ୺ᡂศࡀ࢔࣑ࣝࣀࢣ࢖㓟ሷ࡛࠶ࡾ㸪⌧ᅾᕤᴗ〇ရࡸ໬Ꮫ〇ရࡢཎᩱ➼ᵝࠎ࡞⏝㏵࡛౑⏝ࡉࢀ࡚࠸ࡿࠋࢩࣛࢫࡢᕤᴗⓗ฼⏝ࡢศ㢮࡟ࡘ࠸࡚ᅗ㸯࡟♧ࡍࠋ
⏝㏵࡟ᛂࡌ㸪୍ᐃࡢ㔜ࡉࡸ⢏ᗘ࡟ࡼࡗ࡚ศ⣭ࡋ࡚฼⏝ࡉࢀ࡚࠸ࡿࠋ
ࢧࣈ࣐࣮ࢡ࢔࣮ࢡ⁐᥋⏝ࣇࣛࢵࢡࢫᮦࡣ SiO2 ࡀ୺ᡂศ࡛࠶ࡾ௨ୗࡢࡼ࠺࡞ᙺ๭ࡀ࠶ࡿࠋձ ࢔࣮ࢡࢆᏳᐃࡉࡏࡿղ ࢔࣮ࢡ࿘㎶ࢆࢩ࣮ࣝࢻࡍࡿ

ճ ⁐⼥㔠ᒓ࡜ࡢ἞㔠཯ᛂ㸦⬺㓟㸪ྜ㔠ῧຍ࡞࡝㸧մ ⁐⼥㔠ᒓࡀจᅛࡍࡿ㝿࡟ࡣࣅ࣮ࢻᙧ≧ࢆᩚ࠼ࡿᮏ◊✲࡛ࡣ㸪㑅ูࢥࢫࢺࡢపῶࡀྍ⬟ࡣ஝ᘧẚ㔜㑅    ูᶵࢆ⏝࠸㸪ࢩࣛࢫ࡟ྵࡲࢀࡿⅆᒣ࢞ࣛࢫ㉁࡜⤖ᬗ㉁ࡢᐦᗘᕪࢆศ㞳ࡋ㸪㑅ูࡉࢀࡓࢩࣛࢫࢆ౑⏝ࡍࡿࠋ     ᅗ㸯 ࢩࣛࢫࡢᕤᴗⓗ฼⏝ࡢศ㢮ᕷ㈍ࡢࢧࣈ࣐࣮ࢪ࢔࣮ࢡ⁐᥋⏝ࣇࣛࢵࢡࢫᮦࡢ୺ᡂศ
࡛࠶ࡿ SiO2 ࡢ௦᭰ရ࡜ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬ᐇ㦂᪉ἲ
㸰㸬㸯ࢩࣛࢫࡢศ⣭㸯㸧ᮏᐇ㦂࡛౑⏝ࡍࡿཎᩱࡣ㸪ࢩࣛࢫࡢ୰࡛
ࡶ᭱ࡶᇙⶶ㔞ࡀከ࠸ධᡞⅆ○ὶሁ✚≀࠿ࡽ᥇ྲྀࡋࡓ ௨ୗ㸪ධᡞࢩࣛࢫ ࠋཎᩱࡢ⢏ᗘู㖔≀⤌ᡂ࡜໬Ꮫ⤌ᡂࢆᅗ㸰࡟♧ࡍࠋཎᩱࡢศ⣭᪉ἲ࡟⏝࠸ࡓ஝ᘧẚ㔜㑅ูᶵࡢཎ⌮ࢆᅗ㸱࡟♧ࡍࠋ⢏Ꮚᐦᗘࡸᙧ≧࡞࡝ࢆಀᩘ࡜ࡍࡿ≀యᅛ᭷ࡢᾋ㐟㏿ᗘᕪ࡜᣺ືὶືᒙ࡛ࡢẚ㔜ศ㞳స⏝ࢆే⏝ࡋ㸪㗬ล≧ࡢከᏍᯈ࡟೫ᚰࢡࣛࣥࢡ࡟ࡼࡿᅇ㌿᣺ື        ᅗ㸰 ࢩࣛࢫࡢ㖔≀⤌ᡂ࡜໬Ꮫ⤌ᡂࢆ୚࠼㸪⬦ὶࡢᑡ࡞࠸Ẽὶࢆ㏻ࡋ㑅ูࡍࡿࠋ
ᅗ㸲࡟ศ⣭ࢩࣛࢫࡢ໬Ꮫ⤌ᡂࢆ♧ࡍࠋධᡞࢩࣛࢫࡢᛶ≧࡟ྜࢃࡏࡓᐃ㔞౪⤥⿦⨨࡜㸳ᡂศࡢ⮬ື᤼ฟᶵᵓࢆ᭷ࡍࡿ㞟ሻᶵཬࡧࢧ࢖ࢡࣟࣥࢆ௜タࡋ㸪ഹ࠿࡟ྵࡲࢀࡿ㢼໬ࡢ㐍ࢇࡔᚤ⢊ࢆ㞟ሻᶵ࡛ศ㞳ᅇ཰ࡍࡿࠋ

− 35 −       ᅗ㸱 ẚ㔜㑅ูࡢཎ⌮             ᅗ㸲 ศ⣭ࢩࣛࢫࡢ໬Ꮫ⤌ᡂ㸦㸣㸧㸰㸬㸰ࢩࣛࢫ࡜ࣇࣛࢵࢡࢫᮦࡢᡂศ ศ⣭ࢩࣛࢫࡢ≀ᛶࢆ⾲㸯࡟♧ࡍࠋ㑅ูᚋ࡟ᚓࡿࡇ࡜ࡀ࡛ࡁࡓࢩࣛࢫࡢ୺ᡂศࡣ SiO2 ࡛࠶ࡾ㸪⣙㸵๭ࢆ༨ࡵ࡚࠸ࡓࠋࡲࡓ㸪ᖹᆒ⢏ᚄࡀ␗࡞ࡗ࡚ࡶ SiO2 ࡢ༨ࡵࡿ๭ྜࡣ࡯࡜ࢇ࡝ኚࢃࡽ࡞࠸ࡇ࡜ࡀࢃ࠿ࡗࡓࠋ ⌧ᅾᕷ㈍ࡉࢀὶ㏻ࡋ࡚࠸ࡿࢧࣈ࣐࣮ࢪ࢔࣮ࢡ⁐᥋⏝ࣇࣛࢵࢡࢫᮦࡢ୰࡛㸪SiO2 ࡀ୺ᡂศ࡜࡞ࡗ࡚࠸ࡿ
ࣇࣛࢵࢡࢫࢱ࢖ࣉࢆ⾲㸰࡟♧ࡍࠋ㓟໬࣐ࣥ࢞ࣥ㸫ࢩࣜ࢝⣔ཬࡧ࢝ࣝࢩ࢔㸫ࢩࣜ࢝⣔ࡣ SiO2 ࢆྵࡴ໬Ꮫ
ᡂศࡀ୺ᡂศ࡜࡞ࡗ࡚࠸ࡓࠋࡋࡓࡀࡗ࡚㸪ศ⣭ᚋࡢࢩࣛࢫ࡬ῧຍ≀ࢆຍ࠼ࡿࡇ࡜࡛ࢩࣛࢫࡀࣇࣛࢵࢡࢫ
ᮦ࡜ࡋ࡚౑⏝࡛ࡁࡿྍ⬟ᛶࡀ࠶ࡿࠋ                ⾲㸯 ศ⣭ᚋࡢࢩࣛࢫࡢ≀ᛶ           ⾲㸰 ࣇࣛࢵࢡࢫᮦࡢ໬Ꮫᡂศ㸱㸬⤖ㄽⅆ○ὶሁ✚≀࡛࠶ࡿࢩࣛࢫࢆ஝ᘧẚ㔜㑅ูᶵ࡟ࡼࡾศ⣭ࡋࡓ࡜ࡇࢁ㸪ࣇࣛࢵࢡࢫᮦࡢ୺ᡂศ࡛࠶ࡿ
SiO2 ࢆከࡃྵࢇ࡛࠸ࡓࠋ௒ᚋ㸪ῧຍ≀ࢆຍ࠼ࡓࢩࣛࢫࢆ౑⏝ࡋ࡚ࢧࣈ࣐࣮ࢪ࢔࣮ࢡ⁐᥋ࢆ⾜࠸㸪ᕷ㈍ရ
ࡢࣇࣛࢵࢡࢫᮦࢆ฼⏝ࡋࡓሙྜ࡜ࡢࣅ࣮ࢻ≧ែࡢẚ㍑ࢆ⾜ࡗ࡚࠸ࡃࠋ
㸲㸬ཧ⪃ᩥ⊩㸯㸧཭ᐤ⠜㸪㔝ཱྀ㈗ᩥ㸪⿇ᒣ◊୍㸪ᮾ࿴ᮁ㸸ẚ㔜㑅ู࣭ศ⣭ࡋࡓࢩࣛࢫά⏝࡟㛵ࡍࡿࢥࣥࢡ࣮ࣜࢺศ㔝࡟࠾ࡅࡿᐇ㦂ⓗ◊✲㸪ࢭ࣓ࣥࢺ࣭ࢥࣥࢡ࣮ࣜࢺㄽᩥ㞟㸪Vol70㸪No.1㸪pp.580-587㸪2017,3
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 36 −

TIG ⁐᥋࡟࠾ࡅࡿ┤஺㢼ࡢὶ㏿ኚ໬᫬ࡢẕᮦ࡬ࡢ⇕ὶ᮰ศᕸࡢゎ᫂ᮾி㒔ᕷ኱Ꮫ
┿ᰤ⏣ ⩏ྐ
1. ࡣࡌࡵ࡟
⁐᥋࡛ࡣ㸪㧗

㸪㧗࢚ࢿࣝࢠ࣮ᐦᗘ࡜࠸ࡗࡓ≉㛗ࡀ࠶ࡿ࢔࣮ࢡᨺ㟁ࢆ⏝࠸ࡓ࢔࣮ࢡ⁐᥋ࡀᗈࡃ⏝࠸ࡽࢀࡿࠋ

ࡋ࠿ࡋ㸪ᙉ㢼᫬࡟࠾࠸࡚㸪࢔࣮ࢡࡀ୙Ᏻᐃ࡜࡞ࡿࡇ࡜࡟ࡼࡾ㸪⁐ࡅ㎸ࡳ୙Ⰻࡢࡼ࠺࡞⁐᥋Ḟ㝗ࡀ⏕ࡌࡿ࡜࠸࠺ၥ㢟ࡀ࠶ࡿࠋࡇࢀࡣ㸪ᶓ㢼࡟ࡼࡗ࡚࢔࣮ࢡࡀ೫ྥࡍࡿࡇ࡜࡛㸪ࢩ࣮ࣝࢻ࢞ࢫὶࡀ㢼ୗഃ࡟ὶࡉࢀ࡚ࡋࡲ࠸㸪ࢩ࣮ࣝࢻ୙Ⰻ࡜࡞ࡿࡓࡵ࡛࠶ࡿࠋࡇࡢࢩ࣮ࣝࢻ࢞ࢫὶࡀ࢔࣮ࢡࢆᙧᡂࡍࡿࡓࡵ㸪⁐᥋Ḟ㝗ࡢ㜵Ṇ࡟ࡣ㸪࢔࣮ࢡഃࡢ᳨ウࡀᚲせ࡜࡞ࡿ(1)ࠋ࢔࣮ࢡഃࡢ

ᗘศᕸ࡟ࡼࡗ࡚㝧ᴟ࡛࠶ࡿẕᮦ࡬ࡢ⇕ὶ᮰ࡀỴᐃࡉࢀࡿࠋᶓ㢼࡟ࡼࡗ࡚⏕ࡌࡿ⇕ὶ᮰ศᕸࡢኚ໬ࡢせᅉࢆ᫂ࡽ࠿࡟ࡍࡿ࡟ࡣ㸪ᩘ್ゎᯒࢆ⏝࠸ࡿᚲせࡀ࠶ࡿࠋࡋ࠿ࡋ㸪࢔࣮ࢡࡀ೫ྥࡋࡓሙྜࡢࡼ࠺࡞㠀ᑐ⛠࡞⌧㇟ࡣ㸪୍⯡ⓗ࡟⏝࠸ࡽࢀ࡚࠸ࡿ㍈ᑐ⛠ࡢ㸰ḟඖ෇⟄ᗙᶆ⣔ࡢࣉࣟࢢ࣒ࣛ
࡛ࡣゎᯒࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠸ࠋࡋࡓࡀࡗ࡚㸪㠀ᑐ⛠ࡢゎᯒࡀྍ⬟࡛࠶ࡿ㸱ḟඖ┤஺ᗙᶆ⣔ࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࡀᚲせ࡜࡞ࡿࠋᮏ◊✲࡛ࡣ㸪㸱ḟඖ㟁☢⇕ὶయࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⏝࠸࡚㸪┤஺㢼ࡢὶ㏿ࢆࣃ࣓࣮ࣛࢱ࡜
ࡋ࡚ኚ໬ࡉࡏࡓẕᮦ࡬ࡢ⇕ὶ᮰ศᕸࡢゎᯒࢆ⾜࠺ࠋ
2. ィ⟬᪉ἲ
ᮏ◊✲࡛ࡣ㸪㸱ḟඖ┤஺ᗙᶆ⣔ࡢ㝜ᴟ࡜࢔࣮ࢡ㸪㝧ᴟࢆ⤫ྜࡋࡓィ⟬ࣔࢹࣝࢆᵓ⠏ࡋ㸪ゎᯒࢆ⾜ࡗࡓࠋᅗ1 ࡟㸪ᮏ◊✲࡟࠾ࡅࡿィ⟬㡿ᇦ㸦YZ ᖹ㠃㸧ࢆ♧ࡍࠋィ⟬㡿ᇦࡣ㸪X ᪉ྥ࡜ Y ᪉ྥ࡟ 50 mm㸪Z ᪉ྥ࡟ 30 mm
࡜ࡋࡓࠋ㟁ᴟ㛫㊥㞳ࡣ㸪5 mm㸪㟁ὶࡣ㸪100 A㸪ࣀࢬࣝෆᚄࡣ㸪8.0 mm㸪㝜ᴟ✺ࡁฟࡋ㛗ࡉࡣ㸪5 mm㸪ࢩ࣮ࣝࢻ࢞ࢫὶ㔞ࡣ㸪4 L/min㸪ᅽຊࡣ㸪0.1 MPa ࡜ࡋࡓࠋX-Z ᖹ㠃㸦y = 0 mm㸧ࡢ㝧ᴟ⾲㠃ୖ࠿ࡽᖜ 20 mm㧗ࡉ
10 mm ࡢ┤஺㢼ࣀࢬࣝ㠃ࢆタᐃࡋࡓࠋࡇࡢ㠃࠿ࡽ࢔࣮ࢡ࡟ᑐࡋ࡚┤஺ࡍࡿὶ㏿ࢆቃ⏺᮲௳࡛タᐃࡋࡓࠋ㝧ᴟࡣ㸪SUS304㸪㝜ᴟࡣ㸪ࢱࣥࢢࢫࢸࣥ࡜ࡋࡓࠋ㞺ᅖẼ࢞ࢫ㸪୪ࡧ࡟㸪┤஺㢼ࡢ࢞ࢫ✀ࡣ㸪࢔ࣝࢦࣥ㸪┤஺㢼ࡢᗘࡣ㸪300 K㸪┤஺㢼ࡢὶ㏿ vL ࡣ㸪0㸪3.0㸪5.0 m/s ࡜ࡋࡓࠋࡲࡓ㸪ᮏィ⟬࡛ࡣ㸪ᒁᡤ⇕ᖹ⾮㸪ᒙὶ㸪㠀ᅽ⦰ᛶὶయࢆ௬ᐃࡋ㸪ࢩ࣮ࢫ⌧㇟ࡣ⪃៖ࡋ࡞࠸ࠋẕᮦ࡬ࡢ⇕ὶ᮰ࡣ㸪㟁Ꮚὶධ⇕࡜࢔࣮ࢡ࠿ࡽࡢ⇕ఏᑟ㸪ẕᮦ⾲㠃࠿ࡽࡢᨺᑕࢆ⪃៖ࡋ࡚㸪ẕᮦ⾲㠃࡟࠾ࡅࡿ࢚ࢿࣝࢠ࣮ಖᏑ๎ࡢ⏕ᡂ㡯࡟ࡇࢀࡽࡢ㡯ࢆ㏣ຍࡋࡓ(2)ࠋ

ᅗ 1 ィ⟬㡿ᇦ㸦YZ ᖹ㠃㸧− 37 −

3. ⤖ᯝ࠾ࡼࡧ᳨ウᅗ 2 ࡟㸪┤஺㢼ࡢὶ㏿ኚ໬᫬ࡢẕᮦ⾲㠃࡬ࡢ⇕ὶ᮰ࢆ♧ࡍࠋࡇࡢ⇕ὶ᮰ࡣ㸪ẕᮦࡢᗘୖ᪼࡟ᐤ୚ࡍࡿ㟁Ꮚὶධᡂศ࡜⇕ఏᑟᡂศࡢ⇕ὶ᮰ࡢ⥲࿴ࢆ♧ࡍࠋ┤஺㢼ࡢὶ
㏿ࡀቑຍࡍࡿ࡟క࠸㸪ẕᮦ⾲㠃࡬ࡢ⇕ὶ᮰ࡢ᭱኱್ࡀ୰
ᚰ࠿ࡽ㢼ୗ᪉ྥ࡟ࢩࣇࢺࡋࡓࠋࡇࢀࡣ㸪┤஺㢼ࡢὶ㏿ࡢቑຍ࡟క࠸㸪ᑐὶ࡟ࡼࡿ࢚ࢿࣝࢠ࣮㍺㏦࡟ࡼࡗ࡚ẕᮦ㏆ഐࡢ㢼ୖഃࡢ࢔࣮ࢡ
ഐࡢᗘࡀపୗࡋࡓࡓࡵ࡛࠶ࡿࠋẕᮦ㏆ᗘࡢ᭱኱್ࡀ୰ᚰ࠿ࡽ㢼ୗ᪉ྥ࡟ࢩࣇࢺࡋ㸪ࡇࢀ࡟క࠸㸪ẕᮦ㏆ഐࡢ㟁ὶᐦᗘࡢ᭱኱್ࡶࢩࣇࢺࡍࡿࠋ࢔
࣮ࢡഃࡢᗘࡢ᭱኱್ࡀ㢼ୗ᪉ྥ࡟⛣ືࡍࡿ࡟క࠸㸪ẕᮦ࡬ࡢ⇕ὶ᮰ࡢศᕸࡶྠᵝ࡟᥎⛣ࡍࡿࠋ࢔࣮ࢡ

ᗘศᕸࡣ㸪┤஺㢼࡟ࡼࡾ㢼ୗ᪉ྥ࡟೫ࡾ࡞ࡀࡽࢪ࣮ࣗࣝⓎ⇕࡟ࡼࡗ࡚ᗘศᕸࢆ⥔ᣢࡍࡿࠋࡲࡓ㸪୰ᚰ࠿ࡽ㢼ୖ᪉ྥ࡟

3 mm 㞳ࢀࡓ⟠ᡤ࡛⇕ὶ᮰ࡢῶᑡ㔞ࡀ᭱኱࡜࡞ࡗࡓࠋ┤஺㢼ࢆ྿ࡁ௜ࡅ࡚࠸࡞࠸ሙྜ࡟ẚ࡭࡚㸪y = 22 mm ࡢ⇕ὶ᮰ࡣ㸪vL = 3 m/s ࡢሙྜ㸪2.6106 W/m2㸪vL = 5 m/s ࡢᅗ 2 ┤஺㢼ࡢὶ㏿ኚ໬᫬ࡢẕᮦ⾲㠃࡬ࡢ⇕ὶ᮰ሙྜ㸪3.6106 W/m2 ῶᑡࡋࡓࠋࡇࢀࡣ㸪ẕᮦධ⇕ࡢ༙ᚄࡢᐇ

್࡛࠶ࡿ 5.5 mm ࡼࡾෆ㒊࡛⇕ὶ᮰ࡀపୗࡋ

࡚࠸ࡿࡓࡵ㸪ẕᮦෆࡢධ⇕୙Ⰻࡢཎᅉ࡜࡞ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ(3)ࠋ
4. ࡲ࡜ࡵ
ᮏ◊✲࡛ࡣ㸪┤஺㢼ࡢὶ㏿ࢆኚ໬ࡉࡏࡓ᫬ࡢẕᮦ࡬ࡢ⇕ὶ᮰࡟ࡘ࠸࡚ゎᯒࡋࡓࠋ⤖ᯝ࡜ࡋ࡚㸪┤஺㢼ࡢὶ
㏿ࡀቑຍࡍࡿ࡟క࠸㸪ẕᮦ⾲㠃࡬ࡢ⇕ὶ᮰ࡢ᭱኱್ࡀ୰ᚰ࠿ࡽ㢼ୗ᪉ྥ࡟ࢩࣇࢺࡋࡓࠋࡇࢀࡣ㸪┤஺㢼ࡢὶ
㏿ࡢቑຍ࡟క࠸㸪ᑐὶ࡟ࡼࡿ࢚ࢿࣝࢠ࣮㍺㏦࡟ࡼࡗ࡚ẕᮦ㏆ഐࡢ㢼ୖഃࡢ࢔࣮ࢡ

ᗘࡀపୗࡋࡓࡓࡵ࡛࠶ࡿࠋ

ࡲࡓ㸪୰ᚰ࠿ࡽ㢼ୖ᪉ྥ࡟ 3 mm 㞳ࢀࡓ⟠ᡤ࡛⇕ὶ᮰ࡢῶᑡ㔞ࡀ᭱኱࡜࡞ࡾ㸪┤஺㢼ࡢὶ㏿ࡢቑຍ࡟క࠸⇕ὶ᮰ࡣῶᑡࡋࡓࠋࡇࢀࡣ㸪ẕᮦධ⇕ࡢ༙ᚄࡢᐇ

್࡛࠶ࡿ 5.5 mm ࡼࡾෆ㒊࡛⇕ὶ᮰ࡀపୗࡋ࡚࠸ࡿࡓࡵ㸪ẕᮦෆࡢධ⇕୙Ⰻࡢཎᅉ࡜࡞ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ
5. ཧ⪃ᩥ⊩(1) ᪥ᮏ⁐᥋༠఍ ⁐᥋Წ㒊఍ ᢏ⾡ጤဨ఍ ඹ◊➨㸴ศ⛉఍㸸ࠕ࢞ࢫࢩ࣮ࣝࢻ࢔࣮ࢡ⁐᥋ࡢࢩ࣮ࣝࢻᛶ࡟㛵ࡍࡿ◊✲ሗ࿌ ➨ 4 ᅇ 㢼㏿ࡢᙳ㡪㸦๓⦅㸧ࠖ, ⁐᥋ᢏ⾡ Vol.57, No.8 (2009)(2) ⢄஭ᖹ࣭ᒾᑿᚭ࣭‫‮‬ᮏ㞞ᜨ㸸ࠕࣃࣝࢫ࢔࣮ࢡ࡟࠾ࡅࡿ㝧ᴟ࡬ࡢ⇕ὶ᮰࡟ཬࡰࡍ㟁ὶ❧ࡕୖࡀࡾ㑄⛣᫬㛫ࡢᐤ୚ࠖ, 㟁ẼᏛ఍ㄽᩥㄅ B, Vol.133, No.5, pp.409-416 (2012)(3) ⏣୰Ꮫ࣭ᑎᓮ⚽⣖࣭ᡂ⏣❳୍࣭ᑠᯘ࿴⾜࣭⸨஭ⱥಇ࣭∵ᑿㄔኵ㸸ࠕࢸ࢕ࢢ⁐᥋࡟࠾ࡅࡿ㝧ᴟ⇕㍺㏦࡜ࡑࡢ
⁐㎸ࡳ᩿㠃✚࡟୚࠼ࡿᙳ㡪ࠖ, ⁐᥋Ꮫ఍ㄽᩥ㞟, Vol.23, No.3, pp.398-404 (2005)㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 38 −

⁐᥋࢔࣮ࢡ⌧㇟㸪⁐⼥ụ⌧㇟࠾ࡼࡧ⁐᥋㍺㏦⌧㇟ゎᯒ 㠀ᑐ⛠஺ὶ☢ሙࢆ⏝࠸ࡓ⁐⼥ụ☢Ẽไᚚ࢔࣮ࢡ⁐᥋ἲࡢ◊✲ᡤᒓ㸸⌰⌫኱Ꮫ ᕤᏛ㒊Ặྡ㸸ᯇ⏣୍᪼
1. ┠ⓗ࢔࣮ࢡ⁐᥋ࡣ᪋ᕤࡢ฼౽ᛶ➼࠿ࡽ㸪ᕤᴗⓗ࡟᭱ࡶ

3RZHUVRXUFHIRUZLUH

7,*WRUFK

3RZHUVRXUFHIRUDUF

ᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿ⁐᥋ἲ࡛࠶ࡿࡀ㸪≉࡟ୖྥࡸᶓ
ྥ➼ࡢ㞴ጼໃ⁐᥋࡟࠾࠸࡚ࡣ㸪㔜ຊࡢᙳ㡪࡛⁐⼥㔠

<=%DVHPHWDO

ᒓࡀᆶࢀୗࡀࡾ㸪⁐᥋Ḟ㝗ࡀⓎ⏕ࡋ᫆ࡃ㸪⁐᥋ရ㉁)LOOHUZLUH

ࡸ⁐᥋ຠ⋡ࡢపୗࡢཎᅉ࡜࡞ࡗ࡚࠸ࡿ㸬ࡇࢀ࡟ᑐࡋ㸪

0ROWHQSRRO;ᡃࠎࡣ㸪⁐⼥ụෆ࡟ὶࢀࡿ㟁ὶ࡟ᑐࡋ࡚㸪እ㒊☢ሙ

&RLO

ࢆ௜ຍࡍࡿࡇ࡜࡟ࡼࡾ⏕ࡌࡿ཯㔜ຊ᪉ྥࡢ㟁☢ຊ࡟ࡼࡾ㸪ࣅ࣮ࢻᙧ≧ࢆไᚚࡍࡿࠕ⁐⼥ụ☢Ẽไᚚ⁐᥋ἲ㸸Electromagnetic Controlled Molten Pool Welding

3RZHUVRXUFHIRUFRLO

Processࠖ㸦௨ୗ㸪ECMP ἲ㸧ࢆ㛤Ⓨࡋࡓ㸬ᮏᡭἲ࡟ࡼ

Fig.1 Arrangements of welding apparatus
DCEN in flat positionࡾ㸪ᶓྥ࠾ࡼࡧୖྥ㸪ୗྥጼໃ⁐᥋࡟࠾࠸࡚㔜ຊࡀ⁐᥋ࣅ࣮ࢻ࡟ཬࡰࡍᝏᙳ㡪ࢆపῶࡋࡓ㸬ࡋ࠿ࡋ࡞ࡀ

Magnetic Current [A]ࡽ㸪ୖྥ㸪ୗྥጼໃ⁐᥋࡟࠾࠸࡚㸪(&03 ἲࡢ㐺⏝⠊ᅖᣑ኱ࡢࡓࡵ࡟እ㒊☢ሙࢆࡉࡽ࡟኱ࡁࡃࡋࡓሙྜ㸪࢔࣮ࢡࡶ㟁ὶࡢὶࢀ࡛࠶ࡿࡓࡵ⁐᥋᪉ྥ࡟ᑐࡋ࡚
๓᪉ࡲࡓࡣᚋ᪉࡟㟁☢ຊࡀ⏕ࡌࡿ㸬ࡑࡢࡓࡵ᮲௳࡟
ࡼࡗ࡚ࡣ㸪࢔࣮ࢡࡀ๓᪉࠾ࡼࡧᚋ᪉࡟ᴟ➃࡟೫ྥࡍࡿ㸬ࡑࡢࡓࡵẕᮦ࡬ࡢධ⇕ࡢపୗࡋ㸪⁐᥋ࡀ୙Ᏻᐃ
࡜࡞ࡿ㸬ࡑࢀࡀ ECMP ἲࡢ㐺⏝⠊ᅖᣑ኱ࡢ኱ࡁ࡞ጉ

,F

WS

WQ

䡐
[sec]

,F

ࡆ࡜࡞ࡗ࡚࠸ࡿ㸬ࡑࡇ࡛࢔࣮ࢡࡢᴟ➃࡞೫ྥ➼ࢆᢚ'䡎 = WS /( WS +WQ )ไࡋ⁐᥋ࢆᏳᐃࡉࡏࡿࡓࡵ࡟௜ຍࡍࡿእ㒊☢ሙࢆ

Fig.2 Definition of a duty ratio㠀ᑐ⛠஺ὶ☢ሙ࡜ࡋࡓ㸬࡞࠾㠀ᑐ⛠஺ὶ☢ሙࢆ௜ຍࡋࡓሙྜ㸪࢔࣮ࢡࡔࡅ࡛࡞ࡃ㸪⁐⼥ụࡶୖୗ᪉ྥ࡬
ࡢ㟁☢ຊࡀ࿘ᮇⓗ࡟ാࡃࡇ࡜࡟ࡼࡾ᣺ືࡋ㸪ࡇࢀࡲ࡛ࡢ┤ὶ☢ሙ࡜ࡣ⌧㇟ࡀ኱ࡁࡃ␗࡞ࡿ㸬ᮏ◊✲࡛ࡣ㸪ECMP ἲ࡟㠀ᑐ⛠஺ὶ☢ሙࢆ㐺⏝ࡋࡓሙྜࡢ⁐⼥㔠ᒓࡢὶືኚ໬ࢆヲ⣽࡟ほᐹࡋ㸪㠀ᑐ⛠஺ὶ☢ሙࡀ⁐⼥㔠ᒓࡢὶື࡟࠾ࡼࡰࡍᙳ㡪ࢆㄪ࡭ࡓ㸬ᮏሗ࡛ࡣ㸪≉࡟࢔࣮ࢡഃ࠾ࡼࡧ⿬Ἴഃࡢ⁐⼥ụࢆྠ᫬࡟ほ ࡋࡓ⤖ᯝࢆሗ࿌ࡍࡿ㸬㻌ࡋࡓ㸬ࡲࡓ㟁ᴟ┤ୗࡢẕᮦ⾲㠃ࢆཎⅬ࡜ࡋ㸪⁐᥋⥺᪉ྥࢆ < ㍈㸪ẕᮦ࡜ᖹ⾜࡛⁐᥋⥺࡟ᆶ┤࡞᪉ྥࢆ ;㍈㸪ẕᮦ⾲㠃࡟ᆶ┤࡞᪉ྥࢆ = ㍈࡜ࡋࡓ㸬࡞࠾ヨ㦂∦㸦ẕᮦ㸧ࡣᯈཌ 3 ੈࡢ SUS304 ࢆ౑⏝ࡋ㸪࣡࢖ࣖ
ࡣ 1.2mm ᚄࡢ YS347 ࢆ౑⏝ࡋࡓ㸬☢໬ࢥ࢖ࣝ࡬౪
⤥ࡍࡿ☢໬㟁ὶἼᙧ ,F ࢆᅗ 2 ࡟♧ࡍ㸬☢໬㟁ὶࡣ㸪ṇ࡜㈇ࡢ᫬㛫ẚࡀ␗࡞ࡾ㸪ࡑࡢ᫬㛫ẚ⋡ࡣ 4:1㸦ࢹ࣮ࣗࢸ࢕ẚ 'U = 0.8㸧࡜ࡋࡓ㸬ࡇࢀ࡟ࡼࡾ☢໬ࢥ࢖ࣝ࠿ࡽ㸪᫬㛫ⓗ࡟㠀ᑐ⛠࡞஺ὶ☢ሙࢆⓎ⏕ࡉࡏ㸪⁐⼥

2. ᐇ㦂⿦⨨࠾ࡼࡧ᪉ἲ
ECMP ἲࢆୗྥጼໃ࣍ࢵࢺ࣡࢖ࣖ TIG ⁐᥋࡟㐺⏝ࡋࡓሙྜࡢᐇ㦂⿦⨨ᵓᡂᅗࢆᅗ 1 ࡟♧ࡍ㸬ᐇ㦂⿦⨨ࡣ኱ูࡋ࡚㸪TIG ⁐᥋ࢺ࣮ࢳ࡜⛣ືྎ㌴㸦ᅗ♧␎㸧㸪ῧຍ࣡࢖ࣖཬࡧ☢໬ࢥ࢖ࣝࡼࡾᵓᡂࡉࢀ࡚࠾ࡾ㸪
TIG ࢺ࣮ࢳࢆ࣐࢖ࢼࢫᴟ㸪ῧຍ࣡࢖ࣖࢆࣉࣛࢫᴟ࡜

ụ࡟ࡣ཯㔜ຊ࡜㔜ຊ᪉ྥࡢ㟁☢ຊࡀ஺஫࡟࢔࣮ࢡ
࡟ࡣ⁐᥋᪉ྥࡢ๓ᚋ᪉ྥ࡬࿘ᮇⓗ࡞㟁☢ຊࡀാࡃ㸬ࡇࡢ࿘ᮇⓗ࡟ኚ໬ࡍࡿ㟁☢ຊ࡟ࡼࡾ㸪☢ሙࢆ኱ࡁࡃ
ࡋࡓሙྜ࡟࠾࠸࡚ࡶ㸪࢔࣮ࢡࡢᴟ➃ࡢኚ᭦ࡀᢚไࡉ
ࢀ㸪Ᏻᐃࡋࡓ⁐᥋ࡀ࡛ࡁࡿ㸬࡞࠾ᮏ᮲௳ࡣ㸪཯㔜ຊ− 39 −

− 40 −

஺ὶࢸ࢕ࢢ⁐᥋᫬ࡢ⁐ ⼥ụෆࡢ㝜ᴟⅬไ ᚚ࡟ 㛵ࡍࡿ◊✲ᐑᓮ኱Ꮫ‫‮‬ᆅ ᩄྐ㸯 ࡣࡌࡵ࡟ 
2008ᖺ ࡟ ⸨ ஭ Ặ ࡽ ࡟ ࡼ ࡾ ᥦ ᱌ ࡉ ࢀ ࡓ  㔜ࢩ࣮ࣝࢻ࢞ࢫࢺ࣮ࢳࡣࠊ ᚑ ᮶ ࡢ ┤ ὶ TIG (Tungsten Inert
Gas)⏝࡛౑⏝ࡉࢀ࡚࠾ࡾࠊ࣒࣊ࣜ࢘࢞ࢫ࡟ᚤ㔞ࡢ㓟⣲࢞ࢫࢆῧຍࡋࡓࢩ࣮ࣝࢻ࢞ࢫࢆ⏝࠸ࡿࡇ࡜࡛ࠊ
⁐⼥ụෆࡢ࣐ࣛࣥࢦࢽ࣮ᑐ ὶ ࢆ ෆ ྥ ࡁ ࡟ ኚ ໬ ࡉ ࡏ ࠊ῝ ࡉ ᪉ ྥ ࡟ ᚑ ᮶ ࡢ TIG⁐ ᥋ ⏝ ࢺ ࣮ ࢳ ࡼ ࡾ ࡶ ಸࡢ⁐㎸ࡳࢆᐇ⌧ࡍࡿࡇ࡜ࢆྍ⬟࡜ࡋࡓࠋࡑࡢࡓࡵࠊ࠶ࡽࡺࡿ⏘ᴗ⏺࡬ࡢᖜᗈ࠸฼⏝ࡀᮇ ᚅ ࡉ ࢀ ࡚ ࠸ࡿ ࠋ஺ ὶ TIG⁐ ᥋ ࡢ ᢏ ⾡ ࡟ ࠾ ࡅ ࡿ Ṕ ྐ ࡣ ྂ ࡃ ࠊTIG⁐᥋ࡢ⁐⼥ụෆ㒊࡛ࡢ࣓࢝ࢽࢬ࣒࡟ࡘ࠸࡚ࡣ㝜
ᴟⅬ⌧㇟ࡢ」㞧ࡉ࠿ࡽᮍࡔ㝜 ᴟ Ⅼ ᣲ ື ࡸ 㝖 ཤ 㐣 ⛬ ࡢ ヲ ⣽ ࡲ ࡓ ࡑ ࡢ ᗘ➼ࡢලయⓗ࡞≀⌮㔞࡟㛵ࡋ࡚ࡣᮍゎ᫂࡞Ⅼࡀከ ࡃ ࠊ ᐇ 㦂 ⓗ ࡟ ゎ ᫂ ࡉ ࢀ ࡓ ◊ ✲ ஦ ౛ ࡣ ࡞ ࠸ ࠋ ࡑࡇ࡛ⴭ ⪅ ࡽ ࡣ ࠊ㧗 ࠸ ᫬ 㛫 ศ ゎ ⬟ ࢆ ᣢ ࡘ 㧗 ㏿ ᗘࣅࢹ࣓࢜࢝ࣛࢆ⏝࠸࡚ࠊ࢔࣑ࣝࢽ࣒࢘ᯈࡢ஺ὶࢸ࢕
ࢢ⁐᥋᫬ࡢ⁐⼥ụཬࡧ㓟໬⭷ୖࡢ㝜ᴟⅬᣲືࡸ࢔࣮ࢡⅬᘼ┤ᚋࡢ㝜ᴟⅬ࡟ࡼࡿ㓟໬⭷ࡢ㝖ཤ㐣⛬ࢆᐇ㦂࡟ࡼࡿほᐹࢆヨࡳࡓࠋࡑࡢ⤖ᯝࠊ⁐⼥ụෆ࡟㝜ᴟⅬࡀᏑᅾࡋ࡞࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜ࡋࡓࠋࡔࡀࡇࡢᐇ
㦂⤖ᯝࢆ☜ド࡛ࡁࡿ⌮ㄽࡀ࡞ࡃࠊTIG⏝  㔜ࢩ࣮ࣝࢻ࢞ࢫࢺ࣮ࢳࢆ⏝࠸ࡿࡇ࡜࡛ࠊ⁐⼥ụෆࡢ࣐ࣛࣥࢦࢽ ࣮ ᑐὶࢆෆྥࡁ࡟ኚ໬ࡉࡏ࡚࠸ࡿࡓࡵࠊ⁐⼥ụ୰ᚰ㒊࡬ࡢ㝜ᴟⅬࡢᣲືࡢ☜ㄆࡀ࡛ࡁࡿࡶࡢ࡜⪃ ࠼ࡽࢀࡿࠋࡑࡇ࡛ᮏㄽᩥ࡛ࡣࠊ࢔࣑ࣝࢽ࣒࢘㗰ᮦୖ࡛  㔜ࢩ࣮ࣝࢻ࢞ࢫࢺ࣮ࢳ࡟ࡼࡾࠊෆ㒊ࢩ࣮ࣝࢻ࢞ࢫ࡟ +H ࢞ࢫཬࡧእ㒊ࢩ࣮ࣝࢻ࢞ࢫ࡟ +H ࡟ 㓟 ⣲ ࢆΰࡐࡓ㓟໬ᛶΰྜ࢞ࢫࢆ⏝ ࠸ ࡓ ஺ ὶ TIG⁐ ᥋ ᫬ ࡟ ࠊ㧗 ㏿
ᗘ ࣅࢹ࣓࢜࢝ࣛ࡟ࡼࡾ⁐ ⼥ ụ ㏆ ഐ ࡢ ᧜ ᙳ ࢆ ⾜ ࡗ ࡓ ⤖ ᯝ ⁐ ⼥ ụ ୰ ᚰ 㒊 ࡟ 㝜 ᴟ Ⅼ ࡢ Ꮡ ᅾ ࡋ ࡞ ࠸ ࡇ ࡜ ࢆ᫂ ࡽ ࠿ ࡜ ࡋ ࡓ ࠋࡲ ࡓ ࡇ ࡢ Ⅼ ࡟ ࡘ ࠸ ࡚ 㝜ᴟⅬࡢᏑᅾ᭷↓࡟ࡘ࠸࡚Ⓨ⏕࣓࢝ࢽࢬ࣒➼࡟ࡘ࠸࡚⪃ᐹࡋࡓࡢ࡛ሗ ࿌ ࡍ ࡿ ࠋ 㸰 ◊✲᪉ἲᅗ 1 ࡣ ࠊ࢔ ࣝ ࣑ ࢽ ࢘ ࣒ ᯈ ࡟ ࠾ ࡅ ࡿ ஺ ὶ TIG ⁐ ᥋ ᫬ ࡢ ⁐ ⼥ ụ ཬ ࡧ 㓟 ໬ ⭷ ୖ ࡢ 㝜 ᴟ Ⅼ ᣲ ື ࡸ ࢔ ࣮ ࢡⅬᘼ ┤ᚋࡢ㝜ᴟⅬࡢほࡍ ࡿ ࡓ ࡵ ࡢ ᐇ 㦂 ⿦ ⨨ ᴫ ␎ ࢆ ♧ ࡍ ࠋྠ ᅗ ࡼ ࡾ ࠊ஺ ὶ TIG ⁐ ᥋ ᶵ (DAIHEN

Co.; DA300P)ࢆ ⏝ ࠸ ࡚ ,ᮏ ᐇ 㦂 ࡛ ࡣ 2 㔜 ࢩ ࣮ ࣝ ࢻ ࢞ ࢫ ࢺ ࣮ ࢳ ࢆ ⏝ ࠸ ࡚ ࠾ ࡾ ࠊ ࢺ ࣮ ࢳ ෆ ഃ ࡢ ࢩ ࣮ ࣝ ࢻ࢞ ࢫ ࡟ He ࢞ ࢫ (20 L/min)ࢆ ⏝ ࠸ ࠊእ ഃ ࡢ ࢩ ࣮ ࣝ ࢻ ࢞ ࢫ ࡟ ࡣ ࠊHe ࢞ ࢫ ࢆ ࣋ ࣮ ࢫ ࡜ ࡋ 5%㓟 ⣲ ࢆ ྵ ࢇࡔ 㓟 ໬ ᛶ ࢞ ࢫ ࢆ ᑟ ධ ࡋ ࡚ ࠸ ࡿ ࠋ2 㔜 ࢩ ࣮ ࣝ ࢻ ࢺ ࣮ ࢳ ࢆ ౑ ⏝ ࡍ ࡿ ࡇ ࡜ ࡛ ࠊ஧ 㔜 ࢩ ࣮ ࣝ ࢻ ࡢ ෆ ഃ ࣀ ࢬ ࣝࡼ ࡾ ᄇ ᑕ ࡍ ࡿ ෆ ഃ ࢩ ࣮ ࣝ ࢻ ࢞ ࢫ ࡢ ὶ 㔞 ᐦ ᗘ ࢆ ୍ ᐃ ⠊ ᅖ ෆ ࡟ ㄪ ᩚ ࡋ ࠊ㟁 ᴟ ࡢ ᚄ ཬ ࡧ ෆ ഃ ࣀ ࢬ ࣝ ࡢ ᚄ ࡟㛵ಀ ࡞ࡃࠊ᭱኱ࡢ⁐㎸ࡳ῝ࡉࢆᚓࡿᵓ ࡟࡞ࡗ࡚࠸ࡿࠋࡲࡓࠊእഃࡢࣀࢬࣝ࠿ࡽࡢ㓟໬ᛶ࢞ࢫࡢ
ᙳ㡪࡟ࡼࡾࢱࣥࢢࢫࢸࣥ㟁ᴟᾘ⪖ࢆᢚไࡋ࡚࠸ࡿᵓ ࡟࡞ࡗ࡚࠸ࡿࠋ⁐᥋㟁※ࡢタᐃࡣࠊ㟁ὶ್
200A ཬ ࡧ ࿘ Ἴ ᩘ 70Hzࠊ EP ẚ (EP ᫬ 㛫 /(EN ᫬ 㛫 +EP ᫬ 㛫 ))ࢆ 0.3 ࡜ ࡋ ࡓ ࢱ ࢵ ࢳ ࢫ ࢱ ࣮ ࢺ ࡟ ࡼࡿ ࢔ ࣝ ࣑ ࢽ ࢘ ࣒ ᯈ (t24 mm) ࡛ ࡢ ஺ ὶ TIG ⁐ ᥋ ࢆ ⾜ ࡗ ࡓ ࠋ ᮏ ᐇ 㦂 ࡛ ࡣ ࠊ 㟁 ᴟ Წ ࢆ +(ṇ ᴟ )࡜ ࡋ ࡚ ,ẕ ᮦ ࢆ -(㈇ ᴟ )࡜ ࡋ ࡚ ࠸ ࡿ ࡓ ࡵ ,㟁 ᴟ ᾘ ⪖ ࡀ ኱ ࡁ ࡃ ࠊࢡ ࣜ ࣮ ࢽ ࣥ ࢢ స ⏝ ࡀ ࢔ ࣝ ࣑ ࢽ ࢘ ࣒ ᯈ (ẕ ᮦ )࡟ ຠ ⋡Ⰻ ࡃ స ⏝ ࡍ ࡿ ࡶ ࡢ ࡜ ࡋ ࡚ ࠸ ࡿ ࠋᐇ 㦂 ࡛ ࡣ ࠊ2.0%ࣛ ࣥ ࢱ ࢼ ῧ ຍ ࢱ ࣥ ࢢ ࢫ ࢸ ࣥ 㟁 ᴟ Წ (ရ ㉁ :࢚ ࣝ ࢱ ࣥ ;ࢧ࢖ࢬ:3.2×150 mm/ᮾ 㑥 㔠 ᒓ (ᰴ ))ࢆ ౑ ⏝ ࡋ ,㝜 ᴟ ᚄ ཬ ࡧ ඛ ➃ ゅ ࡣ 3.0 mm ཬࡧ 60 °࡜ ࡋ ࡓ ࠋ ࢔ ࣮ ࢡ㛗 ࡣ 5.0 m ࡜ ࡋ ࡓ ࠋ࢔ ࣮ ࢡ Ⅼ ᘼ ᚋ ⣙ 1.0 ⛊ ᚋ ࡢ ⁐ ⼥ ụ ࢆ ㉸ 㧗 ࣅ ࢹ ࢜ ࢝ ࣓ ࣛ (500,000fps;200Ǎs 㛫㝸 ;Gain×1;Expose1/2) ࡟ ࡼ ࡾ ᧜ ᙳ ࢆ ⾜ ࡗ ࡚ ࠸ ࡿ ࠋ− 41 −

㸱 ᐇ㦂⤖ᯝཬࡧ⪃ᐹᅗ㸰ࡣࠊ஺ὶTIG ⏝  㔜ࢩ࣮ࣝࢻ࢞ࢫࢺ࣮ࢳ࡟࠾ࡅࡿ⁐᥋᫬ࡢ⁐⼥ụ㏆ഐ࡟࡚㧗㏿ᗘ࣓࢝ࣛࢆ౑ࡗ࡚㐃⥆࣮࢝ࣛ᧜ᙳࡋࡓ⤖ᯝࢆ♧ࡍࠋྠᅗࡼࡾ⁐⼥ụࡢ୰ᚰ㒊࡟ࡣ㝜ᴟⅬࡀ☜ㄆࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠸ࠋᐇ㦂࡟౑⏝ࡋࡓ  㔜ࢩ࣮ࣝࢻ࢞ࢫࢺ࣮ࢳ࡟ࡼࡾࢩ࣮ࣝࢻ࢞ࢫ࡜ࡋ࡚㓟⣲ΰྜ࢞ࢫࢆ⏝࠸࡚ࠊ⁐⼥ụ୰ᚰ㒊࡟㝜ᴟⅬࡀ㞟ࡲࡾࡸࡍ࠸≧ἣ࡜ࡋࡓࠋྠᵝ࡟ࠊᨺ㟁ࡀࢫࢱ࣮ࢺࡍࡿ࡜ྠ᫬࡟ࢱࣥࢢࢫࢸࣥ㟁ᴟࡀ⁐⼥ࡍࡿࡇ࡜㔠ᒓ⵨Ẽࡢ▷Ἴ㛗ഃࡢ㟷Ⰽࡢᨺᑕࡀ☜ㄆࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡲࡓࠊࢩ࣮ࣝࢻ࢞ࢫࡢᙳ㡪࡟ࡼࡾࠊ⁐⼥ụෆ㒊࠿ࡽࢡ࣮ࣜ
ࢽࣥࢢ㡿ᇦࡢእ⦕㒊࡬࢞ࢫὶ࡜࡜ࡶ࡟㝜ᴟⅬࡀ⛣ືࡍࡿࡇ࡜ࡀ᳨ウࡉࢀࡿࠋ≉࡟ࠊ࢔࣑ࣝࢽ࣒࢘㔠ᒓࡢ⁐⼥ụ࠿ࡽࡢほᐹ࡛ࡣࠊ⁐⼥ᆅ୰ᚰ㒊ࡀ㧗࠸ෆࡢᗘ࡛⁐⼥ࡉࢀࡿࡇ࡜࡛ࠊ㝧ᴟ࡜㝜ᴟ㛫ࡢ㊥㞳ࡀᗈࡃ࡞ࡾࠊ⁐⼥ụᗘࡢప࠸እഃ࡜ࡢ㝧ᴟ࡜㝜ᴟ㛫ࡢ㊥㞳ࡀ⊃࠸Ⅽ࡟㝜ᴟⅬࡀከࡃᏑᅾࡍࡿࡇ࡜ࡀ⁐⼥ụෆࡢ࣓࢝ࢽࢬ࣒࠿ࡽ᳨ウ࡛ࡁࡿࠋ



Fig.1 Experimental setup       Fig.2 Photograph of High speed color video
camera in TIG welding㸲㸬ࡴࡍࡧ ஺ ὶ TIG ⏝ 㔜 ࢩ ࣮ ࣝ ࢻ ࢞ ࢫ ࢺ ࣮ ࢳ ࡟ ࡼ ࡾ ࠊ ࢔ ࣝ ࣑ ࢽ ࢘ ࣒ ᯈ ࡟ ⁐ ᥋ ࢆ ⾜ ࡗ ࡓ 㝿 ࡢ ⁐ ⼥ ụ ෆ ࡢ 㝜ᴟ Ⅼ ࢆ 㧗 ㏿ ᗘ ࣅ ࢹ ࢜ ࢝ ࣓ ࣛ ࡛ ᧜ ᙳ ࡋ ࡓ ⤖ ᯝ ࠊ ⣸ Ⰽ ᨺ ᑕ ࡣ ࠊ He࢞ ࢫ ࡟ ࠾ ࡅ ࡿ ࢔ ࣮ ࢡ ࡢ Ⓨ ග ࡛ ࠶ ࡾ ࠊ㟷 Ⰽ ᨺ ᑕ ࡣ ࠊ⁐ ᥋ ᫬ ࡢ 㔠 ᒓ ⵨ Ẽ ࡢ ▷ Ἴ 㛗 ഃ ࡢ ᨺ ᑕ ࡛ ࠶ ࡿ ࡇ ࡜ ࡀ ☜ ㄆ ࡛ ࡁ ࡿ ࠋࡇ ࢀ ࡟ ࡼ ࡾ ࠊ⁐ ⼥ ụ ෆࡢ⁐⼥㔠ᒓࡢ⵨Ẽࡢ⏕ᡂ࣓࢝ࢽࢬ࣒ࢆ᳨ウࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ
௒ᚋࡣࠊ⁐⼥ụෆࡢ㝜ᴟⅬࡢᩘ್ࣃ࣓࣮ࣛࢱࡢ⟬ฟ᪉ἲࢆ᳨ウࡍࡿ࡜ඹ࡟㝜ᴟⅬᣲືࡢᩘ್ࣃ࣓࣮ࣛࢱࢆ
᫂☜࡟ࡋ࡚࠸ࡃࠋ௒ᚋࡣࠊࡇࢀࡽࡢᤊ࠼ࡓ⏬ീࢹ࣮ࢱࡼࡾࠊ㝜ᴟⅬ➼ࡢࣃ࣓࣮ࣛࢱࢆ⟬ฟࡋ࡚ࠊ஺ὶ TIG ⁐᥋᫬ࡢࢡ࣮ࣜࢽࣥࢢస⏝ࡢ࣓࢝ࢽࢬ࣒ࡢゎ᫂࡟ດࡵࡿࠋ
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 42 −

㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࢆ⏝࠸ࡓ⇕ࣉࣛࢬ࣐୰ࡢᇶ♏⌧㇟ࡢྍど໬ᡤᒓ ஑ᕞ኱Ꮫ ᕤᏛ◊✲㝔 ໬ᏛᕤᏛ㒊㛛Ặྡ ⏣୰ Ꮫ㸪ᶫワኴ㑻㸪⦖⏣♸ᚿ㸪Ώ㎶㝯⾜⥴ㄽ
㔠ᒓࡢ᥋ྜᢏ⾡ࡣ⌧ᅾࡢᕤᴗ〇ရ࡟࡜ࡗ࡚Ḟ࠿ࡍࡇ࡜ࡢ࡛ࡁ࡞࠸ᢏ⾡࡜࡞ࡗ࡚࠾ࡾ㸪࢔࣮ࢡᨺ㟁ࢆ฼⏝ࡋࡓ࢔࣮ࢡ⁐᥋ࡶྂࡃ࠿ࡽ௦⾲ⓗ࡞⁐᥋ᡭἲ࡜ࡋ࡚฼⏝ࡉࢀ࡚ࡁࡓ㸬Gas Tungsten Arc (GTA)⁐᥋࡛ࡣ㧗⼥Ⅼ㔠ᒓ࡛࠶ࡿࢱࣥࢢࢫࢸࣥ㝜ᴟࢆ⏝࠸㸪㝧ᴟ࡜࡞ࡿẕᮦ࡜ࡢ㛫࡟Ⓨ⏕ࡍࡿ࢔࣮ࢡᨺ㟁ࢆ௓ࡋ࡚⇕ࣉࣛࢬ࣐ࢆ⏕ᡂࡋ㸪ẕᮦࢆ⁐⼥᥋ྜࡍࡿ㸬ࡇࡇ࡛㸪㠀ᾘ⪖㟁ᴟ࡜ࡋ࡚⏝࠸ࡽࢀࡿࢱࣥࢢࢫࢸࣥ㟁ᴟ࡛࠶ࡿࡀ㸪ࡑࡢ㟁ᴟᾘ⪖⌧㇟ࡣྂࡃ࠿ࡽ◊✲ࡀ㐍ࡵࡽࢀ࡚࠸ࡿ㸬౛࠼ࡤ㸪ࢱࣥࢢࢫࢸࣥ㝜ᴟࡢ௙஦㛵ᩘࢆపୗࡉࡏࡿࡓࡵ࡟ᚤ㔞ῧຍࡍࡿ㓟໬≀㸦ThO2, La2O3, Y2O3࡞࡝㸧ࡀ㟁ᴟᾘ⪖࡬ཬࡰࡍᙳ㡪1)ࡀሗ࿌ࡉࢀ࡚࠸ࡿࡼ࠺࡟㸪1980ᖺ௦࠿ࡽ90ᖺ௦࡟࠿ࡅ࡚ᵝࠎ࡞◊✲ࡀ㐍ࡵࡽࢀࡓ㸬ࡲࡓ㏆ᖺ࡛ࡶ㸪㟁ᴟᾘ⪖⌧㇟ࡸ㟁ᴟ㏆ഐ࡛ࡢ≀⌮⌧㇟࡟㛵ࡍࡿ᳨ドࡀ㐍ࡵࡽࢀ࡚࠾ࡾ2, 3)㸪ྂࡃ࠿ࡽ⏝࠸ࡽࢀ࡚࠸ࡿ࢔࣮ࢡᨺ㟁ᢏ⾡࡛࠶ࡿࡀ㸪⌧ᅾ࡛ࡶᮍゎ᫂ࡢⅬࡣከ࠸㸬୍᪉㸪᪂つ࡞࢔࣮ࢡᨺ㟁฼⏝ᢏ⾡࡜ࡋ࡚㸪ከ┦஺ὶ࢔࣮ࢡࢆ㧗໬Ꮫ཯ᛂሙ࡜ࡋ࡚⏝࠸ࡓᮦᩱྜᡂࣉࣟࢭ

ࢫࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬ࡇࢀࡣ㸪௚ࡢ⇕ࣉࣛࢬ࣐࡜ẚ㍑ࡋ࡚࢚ࢿࣝࢠ࣮ຠ⋡ࡀ㧗࠸㸪࢞ࢫὶ㏿ࡀ㐜࠸㸪ࣉࣛࢬ࣐య✚ࡀ኱ࡁ࠸࡜࠸࠺≉㛗ࢆ᭷ࡋ࡚࠾ࡾ㸪㠉᪂ⓗ࢞ࣛࢫ⁐⼥ᢏ⾡ࡸ㸪ࢼࣀᮦᩱྜᡂࣉࣟࢭࢫ࡬ࡢᛂ⏝ࡀ᳨ウࡉࢀ࡚࠸ࡿ 4)㸬ࡋ࠿ࡋ㸪ᐇ⏝໬࡟ྥࡅࡓㄢ㢟ࡢ୍ࡘ࡟㸪㟁ᴟᾘ⪖ࡢపῶ໬ࡀ࠶ࡿ㸬㟁ᴟ⏤᮶ࡢ୙⣧≀ࡣ㸪ࣉࣛࢬ࣐ࡢᏳᐃᛶࡸ⏕ᡂ≀ࡢ⣧ᗘ࡟ᙳ㡪ࢆཬࡰࡍࡓࡵ㸪㟁ᴟ⌧㇟ࡢ⌮ゎ㸪㟁ᴟᾘ⪖ࡢపῶ໬ࡀ୙ྍḞ࡛࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪࢔࣮ࢡᨺ㟁୰ࡢ㟁ᴟᾘ⪖⌧㇟ࢆゎ᫂ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ㸪㟁ᴟ㏆ഐࡢගᏛⓗィ࡟ࡼࡿྍど໬ࢆヨࡳࡓ㸬ᐇ㦂᪉ἲ
ከ┦஺ὶ࢔࣮ࢡⓎ⏕⿦⨨඲యᅗࢆ Fig. 1 ࡟♧ࡍ㸬ᮏ◊✲࡛ࡣ㸪ከ┦࢔࣮ࢡⓎ⏕⅔ୖ㒊࡟タ⨨ࡋࡓ㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࢆ⏝࠸࡚ᨺ㟁㟁ᴟ㏆ഐ㡿ᇦࢆ᧜ᙳࡋ㸪㟁ᴟ㏆ഐ࡛ࡢ㔠ᒓ⵨Ẽࢆྍど໬ࡍࡿࡇ࡜࡛㸪⵨Ⓨ࡟ࡼࡿ㟁ᴟᾘ⪖ᶵᵓࡢゎ᫂ࢆヨࡳࡓ㸬ほᐹ࡟࠾࠸࡚ࡣ㸪Fig. 1୰ࡢ㉥ᯟෆࢆ᧜ᙳࡋ㸪La2O3 ࢆ 2wt%ῧຍࡋࡓࢱࣥࢢࢫ
ࢸࣥ㟁ᴟ㏆ഐࡢ⌧㇟ࢆほᐹࡋࡓ㸬㏻ᖖ㸪㍤ᗘࡢ㧗࠸࢔࣮ࢡࡢᙳ㡪࡟ࡼࡾ㸪࢔࣮ࢡෆ࡟࠾ࡅࡿ⌧㇟ࡢほᐹࡣᅔ㞴࡛࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪≉ᐃࡢἼ㛗ࡢࡳࢆ㏱㐣
ࡍࡿࣂࣥࢻࣃࢫࣇ࢕ࣝࢱ࣮ࢆ⏝࠸ࡿගᏛࢩࢫࢸ࣒ࢆ⏝࠸ࡿࡇ࡜࡛㸪㔠ᒓ⵨Ẽ࠿ࡽࡢⓎගࡢࡳࢆほࡋ㸪⵨Ⓨ࡟ࡼࡿ㟁ᴟᾘ⪖⌧㇟ࢆྍど໬ࡋࡓ㸬㧗㏿ᗘ࣓࢝ࣛࡢࣞ
ࣥࢬ࡟ධࡗࡓගࢆ 2 ග㊰࡟ศ๭ࡋ㸪ࡑࢀࡒࢀ␗࡞ࡿࣂ
ࣥࢻࣃࢫࣇ࢕ࣝࢱ࣮ࢆ㏻ࡍࡇ࡜࡛㸪㟁ᴟᮦᩱ࡛࠶ࡿࢱ
ࣥࢢࢫࢸࣥ⵨ẼࡢⓎග(393 nm)࡜ῧຍ㓟໬≀ La2O3 ⏤᮶ࡢࣛࣥࢱࣥ⵨ẼࡢⓎග(577 nm)ࡢྠᮇほᐹࢆ⾜ࡗࡓ㸬Fig. 1 Experimental setup of multi-phase AC arc
and representative image taken by high-speed
camera.

− 43 −

⤖ᯝ࡜⪃ᐹ
Fig. 2 ࡟ࢱࣥࢢࢫࢸࣥ⵨Ẽ࡜ࣛࣥࢱࣥ⵨Ẽࡢྠᮇほᐹ⤖ᯝࢆ♧ࡍ㸬ࡲࡓ㸪ࡑࢀࡽ࡜ྠᮇࡋࡓ㟁ὶ࣭㟁ᅽኚືࡶ♧ࡋ㸪๓༙ࡀ㝧ᴟ᫬㸪ᚋ༙ࡀ㝜ᴟ᫬࡛࠶ࡿ㸬ከ┦஺ὶ࢔࣮ࢡ࡟࠾࠸࡚ࡣ㸪୺࡟㝧ᴟ᫬࡟㟁ᴟ⵨ⓎࡀⓎ⏕ࡍࡿࡇ࡜ࡀぢ࡚࡜ࢀࡓ㸬ࡇࢀࡣ㸪㝜ᴟ᫬࡟࠾࠸࡚ࡣ W
⵨Ẽࡀ࢔࣮ࢡ୰࡛࢖࢜ࣥ࡜࡞ࡾ㸪㟁ሙࡢᙳ㡪ࢆཷࡅ࡚㟁ᴟഃ࡟෌ࡧᡠࡗ࡚ࡃࡿࡓࡵ࡛࠶ࡿ㸬ࡲࡓ㸪ࢱࣥࢢࢫࢸࣥ⵨Ẽࡣ࿘ᮇ୰ 2.5 ms ࡟࠾࠸࡚Ⓨ⏕ࡋ࡚࠸ࡿᵝᏊࡀ☜ㄆࡉࢀࡓ㸬ࡑࢀ࡟ᑐࡋ㸪ࣛࣥࢱࣥ⵨Ẽࡣẚ㍑ⓗప㟁ὶ࠿ࡘ㟁ᴟᗘࡀప࠸࿘ᮇ୰ 1.5 ms ᫬࡟Ⓨ⏕ࡀ☜ㄆࡉࢀ㸪ࢱࣥࢢࢫࢸࣥ⵨Ⓨࡢ┤๓࡟ῧຍ㓟໬≀ࡢ⵨Ⓨࡀ☜ㄆࡉࢀࡓ㸬ࡇࡢࡇ࡜࠿ࡽ㸪ῧຍ㓟໬≀ࡢ⵨Ⓨࡀࢱࣥࢢࢫࢸࣥ⵨Ⓨࡢࢺ࣮ࣜ࢞࡜࡞ࡗ࡚࠸ࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬ῧຍ㓟໬≀ La2O3 ࡣࢱࣥࢢࢫࢸࣥࡼࡾࡶἛⅬࡀᑠࡉࡃ㸪㧗࡟࠾࠸࡚⵨Ẽᅽࡀ኱ࡁ࠸㸬ࡋࡓࡀࡗ࡚㸪㝧ᴟ᫬࡟࠾࠸࡚ࢱࣥࢢࢫࢸࣥ⵨Ⓨࡀ㛤ጞࡍࡿ๓ࡢప㟁ὶ᫬࡟࠾࠸࡚㸪᪤࡟ῧຍ㓟໬≀ࡀ⵨Ⓨࡍࡿ࡜ண᝿ࡉࢀࡿ㸬ῧຍ㓟໬≀⏤᮶ࡢ㔠ᒓ⵨Ẽࡀ࢔࣮ࢡ୰࡟ΰධࡍࡿ࡜㸪࢔࣮ࢡࡢ㟁Ẽఏᑟᗘࡀୖ᪼ࡋ㸪ᒁᡤⓗ࡟࢔࣮ࢡᗘࡀFig. 2 High-speed snapshots of W vapor (a), La
vapor (b) of W-La2O3, and synchronizedcurrent/voltage waveforms (c).

ୖ᪼ࡍࡿ㸬⤖ᯝ㸪࢔࣮ࢡ࠿ࡽ㟁ᴟ࡬ࡢ⇕ὶ᮰ࡀ኱ࡁࡃ
࡞ࡾ㸪㟁ᴟ㧗ᗘࡢୖ᪼࠾ࡼࡧ㟁ᴟᮦᩱ࡛࠶ࡿࢱࣥࢢࢫࢸࣥࡢ⵨Ⓨ࡟ࡘ࡞ࡀࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࡢࡇ࡜࠿ࡽ㸪࡟࠾࠸࡚⵨Ẽᅽࡀపࡃ㸪ἛⅬࡀ㧗࠸㔠ᒓ㓟໬≀ࢆῧຍࡋࡓ㟁ᴟࡣῧຍ㓟໬≀ࡢ⵨Ⓨࢆᢚ࠼ࡿࡇ࡜ࡀ࡛ࡁ㸪⤖ᯝ㸪㟁ᴟ୺ᮦᩱ࡛࠶ࡿࢱࣥࢢࢫࢸࣥࡢ⵨Ⓨ࡟ࡼࡿ㟁ᴟᾘ⪖ࢆ኱ᖜ࡟పῶ໬࡛ࡁࡿ࡜⪃࠼ࡽࢀࡓ㸬⤖ㄽ
ᮏ◊✲࡛ࡣ㸪㧗㏿ᗘ࣓࢝ࣛ࡜ࣂࣥࢻࣃࢫࣇ࢕ࣝࢱ࣮ࢆ⏝࠸ࡿࡇ࡜࡛㸪࢔࣮ࢡᨺ㟁୰ࡢ㟁ᴟ⌧㇟ࡢືⓗᣲືࡢྍど໬࡟ᡂຌࡋࡓ㸬ከ┦஺ὶ࢔࣮ࢡ࡟࠾࠸࡚㸪㝧ᴟ᫬࡟ῧຍ㓟໬≀⏤᮶ࡢ⵨Ẽ࡜ࢱࣥࢢࢫࢸࣥࡢ⵨Ẽࡀ㟁
ᴟ࠿ࡽⓎ⏕ࡍࡿᵝᏊࡀ☜ㄆࡉࢀࡓ㸬ࡲࡓ㸪ࡑࢀࡽࡢືⓗᣲືほᐹ࠿ࡽ㸪ῧຍ㓟໬≀ࡢ⵨Ⓨࡀ㟁ᴟ୺ᡂศ࡛࠶
ࡿࢱࣥࢢࢫࢸࣥࡢ⵨Ⓨࡢࢺ࣮ࣜ࢞࡜࡞ࡗ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡇࡢࡇ࡜࠿ࡽ㸪⵨Ẽᅽࡀపࡃ㸪ἛⅬࡀ㧗࠸㔠ᒓ㓟໬≀ࢆῧຍࡋࡓ㟁ᴟࡣῧຍ㓟໬≀ࡢ⵨Ⓨࢆᢚ࠼ࡿࡇ࡜ࡀ࡛ࡁ㸪⤖ᯝ㸪㟁ᴟ୺ᮦᩱ࡛࠶ࡿࢱࣥࢢࢫࢸ
ࣥࡢ⵨Ⓨ࡟ࡼࡿ㟁ᴟᾘ⪖ࡶ኱ᖜ࡟పῶ໬࡛ࡁࡿ࡜⪃࠼ࡽࢀࡓ㸬ࡇࡢࡼ࠺࡟㸪࢔࣮ࢡᨺ㟁୰ࡢ⌧㇟ࢆྍど໬ࡍࡿගᏛⓗィᡭἲࢆ⏝࠸㸪▷᫬㛫࡛Ⓨ⏕ࡍࡿ≀⌮⌧㇟ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࡣ㸪࢔࣮ࢡࣉࣟࢭࢫࡢ௒ᚋࡢࡉࡽ

࡞ࡿⓎᒎ࡟ࡣᚲせ୙ྍḞ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ཧ⪃ᩥ⊩1) A. A. Sadek, M. Ushio, and F. Matsuda, Metallurgical Trans. A, 21, 3221 (1990).
2) V. Nemchinsky, IEEE Trans. Plasma. Sci., 42, 199 (2014).
3) S. Nakanishi, Y. Tsujimura, S. Kodama, A. B. Murphy, and M. Tanaka, Quarterly J. Japan Welding Soc., 31, 1(2013).
4) T. Watanabe, Y. Liu, and M. Tanaka, Plasma Chem. Plasma Processing, 34, 443 (2014).
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 44 −

཯ᛂ㠀ᖹ⾮ࣔࢹࣝ࡟࠾ࡅࡿ㧗࿘Ἴ⇕ࣉࣛࢬ࣐ࡢᩘ್ゎᯒᡤᒓ ஑ᕞ኱Ꮫ ᕤᏛ◊✲㝔 ໬ᏛᕤᏛ㒊㛛Ặྡ Ώ㎶㝯⾜, ⏣ᓥྖ, ᑠ㛵ᝆኴ㑻
1. ⥴ㄽ
 ⇕ࣉࣛࢬ࣐ࡣࠊ㧗࡛ࠊ㧗໬Ꮫάᛶࠊ㧗ᛴ෭㏿ᗘࢆᣢࡘࡇ࡜࡟ຍ࠼ࠊ཯ᛂ㞺ᅖẼࢆ⮬⏤࡟㑅ᢥ࡛ࡁࡿ࡜࠸

࠺≉㛗ࡀ࠶ࡿࡓࡵࠊᵝࠎ࡞ᮦᩱࣉࣟࢭࢵࢩࣥࢢ࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ
ࡑࡢ୰࡛ࡶ㧗࿘Ἴ⇕ࣉࣛࢬ࣐ࡣࠊ
㧗࿘Ἴ㟁☢ሙ࡟ࡼࡾㄏᑟⓗ࡟⇕ࣉࣛࢬ࣐ࢆⓎ⏕ࡉࡏࡿᡭἲ࡛࠶ࡾࠊ↓㟁ᴟᨺ㟁࡛࠶ࡿࡇ࡜࠿ࡽ㟁ᴟࡢ⵨Ⓨ࡟ࡼࡿ┠ⓗ⏕ᡂ≀࡬ࡢ୙⣧≀ΰධࡀ࡞ࡃࠊ㧗⣧ᗘࡢᮦᩱྜᡂࡀྍ⬟࡛࠶ࡿࠋࡑࡢࡓࡵࠊ⏘ᴗ⏺ࡢᮦᩱྜᡂศ㔝࡟࠾ࡅࡿᛂ⏝ࡀ≉࡟ᮇᚅࡉࢀ࡚࠸ࡿࡀࠊ㧗࿘Ἴ⇕ࣉࣛࢬ࣐⊂⮬ࡢࣉࣟࢭࢫࢆᵓᡂࡍࡿࡓࡵ࡟ᚲせ࡞ࠊ⇕ࣉࣛࢬ࣐୰ࡢ≀⌮㺃໬Ꮫࣉࣟࢭࢫࡢ⌮ゎࡣᮍࡔ୙༑ศ࡛࠶ࡿࠋࡇࢀࡣࠊ⇕ࣉࣛࢬ࣐ࡀ㧗ᗘ໙㓄ࢆᣢࡗ࡚࠸ࡿࡓࡵ࡟ࠊࣉࣛࢬ࣐୰ࡢ⌧㇟ࢆィ࡛࠶ࡾࠊᛴ⃭࡞ᗘ࣭㏿࡟ࡼࡗ࡚ᢕᥱࡍࡿࡇ࡜ࡀᅔ㞴࡞ࡓࡵ࡛࠶ࡿࠋࡑࡇ࡛ࠊ

ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡾࣉࣛࢬ࣐ࡢ≉ᛶࢆᩘ್ⓗ࡟ゎᯒࡍࡿࡇ࡜ࡀ㔜せ࡜࡞ࡿࠋ⇕ࣉࣛࢬ࣐ࡢᩘ್ゎᯒ࡟࠾࠸࡚ࠊᚑ᮶ࡣᒁᡤ⇕ᖹ⾮㸦LTE㸧ࣔࢹࣝࢆ௬ᐃࡍࡿࡇ࡜ࡀከ࠿ࡗࡓࠋLTE ࢆ௬ᐃࡍࡿ࡜ࠊᗘࡀྠࡌ࡞ࡽࡤ࡝ࡇ࡛ࡶࡑࡢ

ᗘࡢᖹ⾮⤌ᡂ࡜ࡍࡿࡇ࡜ࡀ࡛ࡁࠊ㍺㏦ಀᩘࡸ⇕ຊᏛ≉ᛶࢆᗘ࡜ᅽຊࡢࡳࡢ㛵ᩘ࡜ࡋ࡚ィ⟬࡛ࡁࡿࡓࡵ࡛࠶ࡿࠋࡋ࠿ࡋࠊࣉࣛࢬ࣐࡟ࡼࡿᮦᩱࣉࣟࢭࢵࢩࣥࢢࡢࢩ࣑࣮ࣗࣞ
ࢩࣙࣥࢆṇ☜࡟⾜࠺ࡓࡵ࡟ࡣࠊࣉࣛࢬ࣐⮬యࡢṇ☜࡞ࢩ࣑࣮ࣗࣞࢩࣙࣥࡀᚲせ୙ྍḞ࡛࠶ࡿࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣ཯ᛂ㠀ᖹ⾮㸦CNE㸧ࣔࢹࣝ࡟ࡼࡿ࢔ࣝࢦࣥ-㓟⣲㧗࿘Ἴ⇕ࣉࣛࢬ࣐ࡢ⇕ὶయゎᯒࢆ⾜࠸ࠊࣉࣛࢬ࣐ࡢṇ☜࡞ᗘሙࠊ㏿ᗘሙࠊ⃰ᗘሙ࡜࠸ࡗࡓྛ✀ࣃ࣓࣮ࣛࢱࢆᩘ್ⓗ࡟ồࡵࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ2. ᩘ್ゎᯒἲ 㧗࿘Ἴ⇕ࣉࣛࢬ࣐ࡢ

ᗘࡸ㏿ᗘࠊ⃰ᗘ࡜࠸ࡗࡓሙࡢ್ࡣᇶ♏᪉⛬ᘧࢆ㐃❧ࡋ࡚ゎࡃࡇ࡜࡟ࡼࡾồࡵࡽࢀࡿࠋ

኱Ẽᅽୗ࡛ࡣ⇕ࣉࣛࢬ࣐ࡣ㐃⥆య࡜ࡳ࡞ࡏࡿࡓࡵࠊᇶ♏᪉⛬ᘧ࡜ࡋ࡚ὶయຊᏛࡢಖᏑ᪉⛬ᘧࢆ⏝࠸ࡿࡇ࡜ࡀ
࡛ࡁࡿࠋᮏ◊✲࡛ࡣ⤌ᡂẚ 0.963㸸0.037 ࡢ࢔ࣝࢦࣥ̿㓟⣲ࣉࣛࢬ࣐࡟㛵ࡍࡿ⇕ὶయィ⟬ࢆ⾜ࡗࡓࠋゎᯒࡍࡿࣔࢹࣝࡣ཯ᛂ㠀ᖹ⾮ 1ᗘࣔࢹ࡛ࣝࠊ2 ḟඖ㟁☢ሙࢆ⪃៖ࡋ࡚࠸ࡿࠋᇶ♏᪉⛬ᘧ࡜ࡋ࡚㐃⥆ࡢᘧࠊࢼࣦ࢕࢚-ࢫࢺ࣮ࢡࢫ᪉⛬ᘧࠊ࣐ࢡࢫ࢙࢘ࣝ᪉⛬ᘧࠊ࢚ࢿࣝࢠ࣮ಖᏑᘧࠊᡂศಖᏑᘧࡢ 5 ࡘࡢ᪉⛬ᘧࢆ㐃❧ࡉࡏ࡚ゎ࠸ࡓࠋࡲࡓࠊᇶ♏᪉⛬ᘧࢆࡓ࡚ࡿࡓࡵࡢ௬ᐃ࡜ࡋ࡚௨ୗࡢࡶࡢࢆ⏝࠸ࡓࠋ(a)ィ⟬ᑐ㇟࡛࠶ࡿࣉࣛࢬ࣐ࢺ࣮ࢳࡣ㍈ᑐ⛠ࡢ෇⟄ᙧ࡛࠶ࡿࠊ(b)ࣉࣛࢬ࣐ὶࡣᐃᖖ≧ែ࡛ᒙὶ࡛࠶ࡿࠊ(c)ࣉࣛࢬ࣐ࡣගᏛⓗ࡟ⷧ࠸࡜ࡳ࡞ࡏࡿࠊ(d)⢓ᛶᩓ㐓ࡣ↓どࡍࡿࠊ(e)ኚ఩㟁ὶࡣ↓どࡍࡿࠊ(f)⪃៖ࡍࡿ໬Ꮫ✀ࡣ Ar㸪Ar+㸪O2㸪O㸪O+ࡢ 6 ✀㢮࡜ࡍࡿࠋࡇࢀࡽࡢ௬ᐃࢆ⨨ࡃ࡜ࠊᇶ♏᪉⛬ᘧࡣ௨ୗࡢࡼ࠺࡟᭩ࡅࡿࠋ
࣭㐃⥆ࡢᘧ
 Uu

0

(1)

u ࡣ㏿ᗘࠊUࡣᐦᗘ࡛࠶ࡿࠋ
࣭ࢼࣦ࢕࢚-ࢫࢺ࣮ࢡࢫ᪉⛬ᘧ& && &Uu  u p  W  J u B(2)p ࡣᅽຊࠊWࡣᛂຊࢸࣥࢯࣝࠊJ ࡣ㟁ὶᐦᗘࠊB ࡣ☢᮰ᐦᗘ࡛࠶
ࡿࠋ

Fig. 1 Induction thermal plasma system.

࣭㟁☢ሙ᪉⛬ᘧ− 45 −

w 2 E1 1 w § wE1 · E1¸   [VZE2¨rwx 2 r wr © wr ¹ r 2

0(3)

w 2 E2 1 w § wE2 · E2

 [VZE1¨r¸wx 2 r wr © wr ¹ r 2

0(4)

ȥࡣ┿✵ࡢ㏱☢⋡ࠊȪࡣ㟁ẼఏᑟᗘࠊȰࡣゅ㏿ᗘ࡛࠶ࡿࠋࡇࡢ 2 ᘧࢆゎ࠸࡚ồࡵࡓ E1ࠊE2 ࠿ࡽ࿘᪉ྥࡢ㟁ሙEȟࢆồࡵࡿࠋ
࣭࢚ࢿࣝࢠ࣮ಖᏑᘧ
§ O
· & &
 ¨
 h ¸  J  E  qr
(5)
Fig. 2 Calculation domain of plasma torch.
¨C
¸
© p
¹
h ࡣ࢚ࣥࢱࣝࣆ࣮ࠊȢࡣ⇕ఏᑟᗘࠊCp ࡣᐃᅽẚ⇕ࠊE ࡣ㟁ሙࠊqr ࡣᨺᑕ࡟ࡼࡿ⇕ᦆኻ࡛࠶ࡿࠋ
&Uu   h࣭ᡂศಖᏑᘧ
&Uu  Yi   UDYi  Rr ,i(6)

D ࡣᣑᩓಀᩘࠊYi ࡣ໬Ꮫ✀ i ࡢ㉁㔞ศ⋡ࠊRr,i ࡣ໬Ꮫ✀ i ࡢ⏕ᡂ㏿ᗘ࡛࠶ࡿࠋ

ࡇࢀࡽࡢᇶ♏᪉⛬ᘧࢆ෇⟄ᗙᶆ⣔࡛㞳ᩓ໬ࡋࡓࠋ㧗࿘Ἴ⇕ࣉࣛࢬ࣐ࡢ⿦⨨ᅗࢆ Fig. 1 ࡟ࠊィ⟬㡿ᇦࢆ Fig. 2࡟♧ࡍࠋᩘ್ィ⟬࢔ࣝࢦࣜࢬ࣒࡜ࡋ࡚ࡣ SIMPLER ἲࢆ⏝࠸ࡓࠋࡇࢀࡣ Patanker[1]࡟ࡼࡗ࡚⪃᱌ࡉࢀࡓࠊSIMPLE
ἲࡢ཰᮰ᛶࢆᨵၿࡍࡿࡓࡵ࡟㛤Ⓨࡉࢀࡓ࢔ࣝࢦࣜࢬ࣒࡛࠶ࡿࠋࡲࡓ⇕ࣉࣛࢬ࣐ࡢ㍺㏦ಀᩘ࡟ࡘ࠸࡚ࡣࠊ
Chapman-Enskog ἲࢆ⏝࠸࡚ᚓࡽࢀࡓ⾪✺✚ศࢆᗘࡢ㛵ᩘ࡜ࡋ࡚ᐃᘧ໬ࡋࡓୖ࡛ィ⟬ࢆ⾜ࡗࡓ[2]ࠋ

3. ィ⟬⤖ᯝ࠾ࡼࡧ⪃ᐹ
 Fig. 3࡟

ᗘศᕸᅗࢆ♧ࡍࠋ➼㧗⥺ࡣ1000 Kࡈ࡜࡟♧ࡋ࡚࠶ࡿࠋ㍈᪉ྥ࡟30~50 mmࠊ༙ᚄ᪉ྥ࡟5 ~ 10 mmࡢ఩⨨࡛᭱㧗ᗘࢆྲྀࡗ࡚࠸

ࡿࡀࠊࡇࢀࡣࢥ࢖ࣝ㡿ᇦෆ㒊࡛ࢪ࣮ࣗࣝຍ⇕ࡀ
Ⓨ⏕ࡋ࡚࠸ࡿࡓࡵ࡛࠶ࡿࠋ㓟⣲ࡀྵࡲࢀࡿ⇕ࣉࣛࢬ࣐࡛ࡣࠊ㓟⣲ศᏊࡢゎ㞳࡟ࡼࡗ࡚࢚ࢿࣝࢠ
࣮ࡀᾘ㈝ࡉࢀࠊ ᗘࡣୗࡀࡿഴྥ࡟࠶ࡿࡀࠊ௒
ᅇࡢィ⟬᮲௳࡟࠾࠸࡚ࡣ㓟⣲⤌ᡂẚࡣᑠࡉ࠸ࡓࡵࠊቨ࡟㏆࠸఩⨨ࡲ࡛㧗

Fig. 3 Temperature distribution in argon-oxygen plasma㒊ࡀᏑᅾࡋ࡚࠸ࡿࠋ

at 4 MHz and 10 kW.

4. ⤖ㄽ
ᮏ◊✲࡛ࡣࠊ㧗࿘Ἴ⇕ࣉࣛࢬ࣐ࡢᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ཯ᛂ㠀ᖹ⾮ࣔࢹ࡛ࣝ⾜ࡗࡓࠋィ⟬⤖ᯝ࠿ࡽࠊ㧗࿘Ἴ㟁☢ሙࡀ⇕ࣉࣛࢬ࣐ࡢ

ᗘ࡟୚࠼ࡿᙳ㡪ࡀศ࠿ࡗࡓࠋ
௒ᚋࡣࠊ཯ᛂ㠀ᖹ⾮࡟ࡼࡿᙳ㡪ࢆㄪᰝࡍࡿࡓࡵ࡟ࠊ

ィ⟬㡿ᇦࡢྛ㒊࡛ࢲ࣒ࢣ࣮ࣛᩘ࡟ࡼࡿ᳨ウࢆ⾜࠺ணᐃ࡛࠶ࡿࠋ
5. ཧ⪃ᩥ⊩(1) S.V.ࣃࢱ࣮ࣥ࢝, ࢥࣥࣆ࣮ࣗࢱ࡟ࡼࡿ⇕⛣ື࡜ὶࢀࡢᩘ್ゎᯒ, ᳃໭ฟ∧ (1985)(2) ཌᆅఙᙪ: ཯ᛂ㠀ᖹ⾮ 2ᗘࣔࢹࣝ࡟ࡼࡿ㧗࿘Ἴ⇕ࣉࣛࢬ࣐ࡢᩘ್ゎᯒࠊᮾிᕤᴗ኱Ꮫಟኈㄽᩥ(2005)㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 46 −

኱Ẽᅽ㠀ᖹ⾮ࣉࣛࢬ࣐ࢪ࢙ࢵࢺࡢᨺ㟁ᇶ♏≉ᛶ࡟㛵ࡍࡿ◊✲ᕝᓮᩄஅ㸦᪥ᮏᩥ⌮኱Ꮫ㸧㸪ෆ⏣൤୍ᮁ㸪➉୰ᘯ♸㸪⠇ཎ⿱୍㸦኱㜰኱Ꮫ㸧㸯㸬ࡣࡌࡵ࡟ ㏆ᖺ㸪ࣉࣛࢬ࣐ࡢࣂ࢖࣭࢜་⒪ศ㔝࡬ࡢᛂ⏝࡟㛵ࡍࡿ◊✲ࡀάⓎ࡟⾜ࢃࢀ࡚࠸ࡿ㸬౛࠼ࡤ㸪ࡀࢇ἞⒪㸪๰യ἞⒪㸪ࢱࣥࣃࢡ㉁ኚᛶ㸪㑇ఏᏊᑟධ㸪ṑ⛉἞⒪࡞࡝ከᒱ࡟ࢃࡓࡿ㸬ࡇࡢሙྜ㸪ࣉࣛࢬ࣐ࡣάᛶ㓟⣲㸦ROS㸧ࡸάᛶ❅⣲㸦RNS㸧ࡢⓎ⏕࡜౪⤥ࡢࡓࡵࡢࢶ࣮ࣝ࡜ࡋ࡚౑⏝ࡉࢀࡿ㸬≉࡟ࣂ࢖
࣭࢜་⒪ᛂ⏝࡟࠾࠸࡚ࡣ㸪ࢱ࣮ࢤࢵࢺࡀᇵ㣴ᾮࡸ⏕య⤌⧊㸦኱㒊ศࡀࢤࣝ㸧ࡢ୰࡟Ꮡᅾࡍࡿࡇ࡜ࡀከ࠸
ࡓࡵ㸪ࣉࣛࢬ࣐↷ᑕ࡟ࡼࡗ࡚ᾮ≧፹య୰࡟άᛶ✀ࢆ㏦ࡾᒆࡅࡿᚲせࡀ࠶ࡿ㸬ࡍ࡞ࢃࡕ㸪ᾮ≧፹యࢆ௓ࡋ
࡚ࢱ࣮ࢤࢵࢺ࡟㑅ᢥⓗ࡟άᛶ✀ࢆ౪⤥ࡍࡿࡇ࡜ࡀ㸪ࣉࣛࢬ࣐ࡢᏳ඲࣭ຠᯝⓗ฼⏝࡟࠾࠸࡚ᚲせ࡜࡞ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ࣉࣛࢬ࣐࿘㎶ࡢẼ┦୰࡟Ꮡᅾࡍࡿάᛶ✀࡟㛵ࡋ࡚ࡣගᏛⓗᡭἲ࡟ࡼࡿከࡃࡢ▱ぢࡀ⵳✚ࡉࢀ࡚࠸ࡿࡀ㸪ྠᡭἲࡢᾮ୰ィ ࡬ࡢ㐺⏝ࡣᅔ㞴࡛࠶ࡿ㸬ࣉࣛࢬ࣐↷ᑕ࡟ࡼࡗ࡚ᾮ୰࡟౪⤥ࡉࢀࡿྛ✀άᛶ✀ࡢᐃ㔞ศᯒࡣ໬Ꮫⓗᡭἲ࡟ࡼࡾ⾜ࢃࢀ࡚࠸ࡿࡀ㸪ࡑࢀࡣᖹᆒ໬ࡉࢀࡓࡶࡢ࡛࠶ࡾศᕸィ ࡣ⾜ࢃࢀ࡚࠸࡞࠸㸬ࡇࡢࡼ࠺࡞⌮⏤࠿ࡽ㸪ࣉࣛࢬ࣐↷ᑕ࡜ᾮ୰άᛶ✀ศᕸࡢ㛵ಀ࡟㛵ࡋ࡚ࡣ୙᫂࡞Ⅼࡀ㠀ᖖ࡟ከ࠸ࡢࡀ⌧≧࡛࠶ࡿ㸬ࡇ࠺ࡋࡓ⫼ᬒࡢ୰㸪ᮏ◊✲࡛ࡣࡇࢀࡲ࡛ࣉࣛࢬ࣐◊✲࡟⏝࠸ࡽࢀࡓࡇ࡜ࡀ࡞࠸໬
Ꮫⓗᡭἲࢆ⏝࠸࡚㸪άᛶ✀࡟ࡼࡗ࡚ᾮ୰࡛ㄏ㉳ࡉࢀࡿ㓟໬཯ᛂࡢ஧ḟඖศᕸྍど໬࡟ᡂຌࡋࡓ㸬௨ୗ࡟ලయⓗ࡞ᡂᯝࢆሗ࿌ࡍࡿ㸬㸰㸬㓟໬཯ᛂࢆྍど໬ࡍࡿࡓࡵࡢࢤࣝ≧ヨ⸆ ᮏ◊✲࡛ࡣ KI㸫ࢹࣥࣉࣥ⁐ᾮࢆࢤࣝ≧࡟ࡍࡿࡇ࡜࡟ࡼ
ࡗ࡚㸪ᾮ≧፹య୰ࡢ㓟໬཯ᛂࡢ஧ḟඖศᕸྍど໬ࢆྍ⬟࡟ࡋࡓ㸬༙ୡ⣖࡯࡝๓࡟ྠᵝ࡞ࢤࣝ≧ヨ⸆ࡀ㸪ᨺᑕ⥺↷ᑕ࡟ࡼࡗ࡚ㄏ㉳ࡉࢀࡿ㓟໬཯ᛂࡢྍど໬࡟౑⏝ࡉࢀࡓ౛ࢆࣄࣥࢺ࡟㸪ᮏ◊✲࡛ࡣࡇࢀࢆࣉࣛࢬ
࣐◊✲࡟ᛂ⏝ࡋࡓ㸬↓Ⰽ㏱᫂࡞ࢤࣝ≧ヨ⸆ୖ࡟ㄏ㉳ࡉࢀࡿ㓟໬཯ᛂࡀ㸪㟷⣸Ⰽࡢ࿊Ⰽ࡟ࡼࡾ㩭᫂࡟ྍど໬ࡉࢀࡿ㸬ᾮయ୰࡛ࡶ౑⏝ྍ⬟࡛࠶ࡿࡇ࡜ࡀ㸪ᾮ୰ࡸᶍᨃ⏕య୰࡟࠾ࡅࡿ㓟໬཯ᛂࡢྍど໬◊✲࡬ࡢᒎ㛤ࢆྍ⬟࡟ࡋࡓ㸬ࡇࡢࡼ࠺࡟⡆౽࠿ࡘᏳ౯࡟㓟໬཯ᛂࡢ஧ḟඖศᕸྍど໬ࡀᾮ୰࡛ࡶྍ⬟࡛࠶ࡿࡇ࡜ࡣ㸪ᙜヱศ㔝ࡢㄢ㢟ゎỴ࡟࠾࠸࡚ᴟࡵ࡚᭷ຠ࡞ィ ᡭἲࡢ 1 ࡘ࡛࠶ࡿ㸬㸱㸬ᾮ୰㓟໬཯ᛂࡢྍど໬ యᾮ㸪ᇵ㣴ᾮ࡞࡝࡬ࡢࣉࣛࢬ࣐↷ᑕ࡟ࡼࡗ࡚㸪ᾮ୰࡟ㄏ㉳ࡉࢀࡿ㓟໬཯ᛂࡢศᕸࡸ฿㐩῝ࡉࢆ▱ࡿࡇ࡜ࡣᙜヱᢏ⾡ࡢⓎᒎ࡟Ḟ࠿ࡏ࡞࠸㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ Fig. 1(a)ࡢࡼ࠺࡞
ᐇ㦂ࢆ⾜ࡗࡓ㸬ࣉࣛࢬ࣐ࡣᾮ⾲㠃࡟↷ᑕࡉࢀ㸪ᾮࢆ௓ࡋ࡚ࢤࣝ≧ヨ⸆࡟฿㐩ࡋࡓάᛶ✀࡟ࡼࡿ㓟໬཯ᛂࢆྍど໬ࡍࡿ㸬ᇶ♏ᐇ㦂࡜ࡋ࡚Ỉ⭷ࢆ⏝࠸ࡓ⤖ᯝࢆ Fig. 1(b)࡟♧ࡍ㸬ࡇࡢ⤖ᯝࡼࡾ㸪Ỉࡢᗏ࡛ࡣࣜࣥ
ࢢ≧࡟㓟໬཯ᛂࡀㄏ㉳ࡉࢀࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ㸬

(b)

ᮍ཯ᛂ
㒊ศ

࿊Ⰽ཯ᛂ

20 mm

Fig. 1 ᾮ୰㓟໬཯ᛂࡢྍど໬㸲㸬ᶍᨃ⏕య୰㓟໬཯ᛂࡢྍど໬ ࣉࣛࢬ࣐ࢆேయ࡟┤᥋↷ᑕࡍࡿሙྜࢆ᝿ᐃࡋࡓ Fig. 2(a)ࡢࡼ࠺࡞ᐇ㦂࡟ࡼࡾ㸪ᶍᨃ⏕య㸦ࢤࣝ㸧ࢆ௓ࡋ࡚ㄏ㉳ࡉࢀࡿ㓟໬཯ᛂࡢศᕸࢆྍど໬ࡋࡓ㸬ࡑࡢ⤖ᯝ㸪Fig. 2(b)ࡢࡼ࠺࡟㸪ࣉࣛࢬ࣐↷ᑕ㒊┤ୗ࡟Ⅼ≧ࡢ㸪ࡑࡢ࿘㎶࡟ࣜࣥࢢ≧ࡢ㓟໬཯ᛂࡀㄏ㉳ࡉࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬ࣉࣛࢬ࣐┤᥋↷ᑕ࡟ࡼࡗ࡚ேయ୰࡟άᛶ✀ࢆ౪⤥ࡍࡿሙྜ㸪↷ᑕ㒊┤ୗࡔࡅ࡛࡞ࡃᗈ⠊ᅖ࠿ࡘ୙ᆒ୍࡟άᛶ✀ࡀ౪⤥ࡉࢀ࡚࠸ࡿྍ⬟ᛶࢆ♧ࡍ㔜せ࡞⤖ᯝ࡛࠶
ࡿ㸬

(b)

20 mm
Fig. 2 ᶍᨃ⏕య୰㓟໬཯ᛂࡢྍど໬㸳㸬࠾ࢃࡾ࡟ ᮏ◊✲࡛ࡣ௒ࡲ࡛᫂ࡽ࠿࡛࡞࠿ࡗࡓᾮ୰ࡸᶍᨃ⏕య୰ࡢࣉࣛࢬ࣐ㄏ㉳㓟໬཯ᛂࡢྍど໬࡟ᡂຌࡋࡓ㸬ᾮ࡜ᶍᨃ⏕యෆ࡟࠾࠸࡚ඹ㏻ࡍࡿ࡜ᛮࢃࢀࡿ⌧㇟ࡀከࠎほ ࡉࢀ㸪௒ᚋࡇࢀࡽࢆゎ᫂ࡍࡿࡇ࡜ࡀ㸪ࣉࣛࢬ࣐ࡢࣂ࢖࣭࢜་⒪ᛂ⏝࡟࠾ࡅࡿⓎᒎ࡟ᚲせ࡛࠶ࡿ࡜⪃࠼࡚࠸ࡿ㸬㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ኚ᥮ᶵᵓᏛศ㔝㸧− 47 −

࢚ࢿࣝࢠ࣮ࣅ࣮࣒࡜≀㉁࡜ࡢ┦஫స⏝⌧㇟ࡢゎ᫂㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮࡟ࡼࡿຍᕤࣉࣟࢭࢫ࡟㛵ࡍࡿ◊✲ᐑᓮ኱Ꮫ ⏘Ꮫ࣭ᆅᇦ㐃ᦠࢭࣥࢱ࣮⏥⸨ ṇே
㸯㸬ࡣࡌࡵ࡟ 㔞Ꮚ࢚ࢿࣝࢠ࣮ศ㔝࡟࠾࠸࡚ࠊ࣮ࣞࢨ࣮ࡣࡑࡢ≉㛗ࢆά࠿ࡋࠊ⏘ᴗศ㔝࡬ࡢᛂ⏝ࡀ┒ࢇ࡛࠶ࡿࠋ௦⾲ⓗ࡞⏘ᴗᛂ⏝࡜ࡋ࡚ࡣࠊ᥋ྜࡸ⁐᥋࡞࡝ࡢࡶࡢ࡙ࡃࡾศ㔝ࡀୖࡆࡽࢀࡿࠋ㏆ᖺࡢ࣮ࣞࢨ࣮㛤Ⓨࡢࢺࣞࣥࢻ࡜ࡋ࡚ࡣࠊ▷Ἴ㛗໬࡜▷ࣃࣝࢫ໬ࡀ࠶ࡿࠋ▷Ἴ㛗໬࡟࠾࠸࡚ࡣࠊ㟷Ⰽ࠿ࡽ⣸እࠊࡉࡽ࡟ࡣ῝⣸እࠊ┿✵⣸እ㡿ᇦࡢἼ㛗࡛࣮ࣞࢨ࣮Ⓨ᣺ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ୍⯡࡟⣸እࡼࡾ▷Ἴ㛗㡿ᇦ࡟࠾࠸࡚ࡣࠊከࡃࡢㄏ㟁యᮦᩱࡀ྾཰ࢆᣢࡕࠊග໬Ꮫస⏝ࡢቑ኱࡜ᅇᢡ㝈⏺ゅࡀᑠࡉ࠸ࡇ࡜ࡶేࡏ࡚ࠊᴟ⢭ᐦຍᕤ࡟㐺ࡋ࡚࠸ࡿࠋࡲࡓ▷ࣃࣝࢫ໬࡟࠾࠸࡚ࡣࠊ⇕ᣑᩓ࡛↷ᑕ㒊࿘ᅖ࡟࢚ࢿࣝࢠ࣮ࡀᣑᩓࡍࡿࡼࡾ㏿ࡃࠊ࣮ࣞࢨ࣮ࣃࣝࢫ࡟ࡼࡿ࢚ࢿࣝࢠ࣮౪⤥ࡀ⤊ࢃࡿࡇ࡜࠿ࡽࠊ࣮ࣞࢨ࣮↷ᑕ㒊㏆ഐࡢ
ࡳ࡟ᒁᡤⓗ࡟࢚ࢿࣝࢠ࣮ࢆ㞟୰ࡉࡏࡿࡇ࡜ࡀ࡛ࡁࠊ⇕ⓗ࡞ᙳ㡪ࡢᑡ࡞࠸ຍᕤࢆ᪋ࡍࡇ࡜ࡀྍ⬟࡛࠶ࡿࠋ ᐑᓮ኱Ꮫ࡟࠾࠸࡚ࡣࠊࡇࢀࡽࡢ≉㛗ࢆేࡏᣢࡘ▷Ἴ㛗࣭▷ࣃࣝࢫ࣮ࣞࢨ࣮ග※㸹┿✵⣸እ (Vacuum Ultraviolet:
VUV) ᇦ࡛࠶ࡿἼ㛗 126 nm ࡟Ⓨ᣺⥺ࢆᣢࡕࠊࣃࣝࢫᖜࡀࢧࣈ ps ࡢࢥࣄ࣮ࣞࣥࢺග※ࡢ㛤Ⓨࢆ⾜ࡗ࡚࠸ࡿࠋࡉࡽ
࡟ࠊ⮬ᕫ఩┦ኚㄪ࡟ࡼࡿᗈᖏᇦ▷Ἴ㛗ගࡢⓎ⏕ࢆ┠ᣦࡋ࡚◊✲ࢆ⾜ࡗ࡚࠸ࡿࠋࡇࢀࡽࡢග※ࡣ㧗௜ຍ౯್࡞ຍᕤࣉ
ࣟࢭࢫࡸ⾲㠃ฎ⌮ࠊ⾲㠃ィ ࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀࡿࠋ ᮏඹྠ◊✲࡟࠾࠸࡚ࡣࠊ▷ࣃࣝࢫ࣭▷Ἴ㛗࣮ࣞࢨ࣮࡟ࡼࡿຍᕤࣉࣟࢭࢫࡢ≀⌮ⓗ⣲㐣⛬ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋᮏᖺᗘ࡟࠾࠸࡚ࡣࠊ⣸እࡼࡾ▷࠸Ἴ㛗ᇦ࡛ࡢ㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ගࡢⓎ⏕࡜ࡑࡢᛂ⏝࡟ࡘ࠸࡚㛤Ⓨࢆ⥅⥆ࡋࠊࣉࣟࢭࢫᛂ⏝࡬ࡢ᳨ウࢆ⾜ࡗࡓࠋࡲࡓࠊ㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ࢩࢫࢸ࣒ࢆ⏝࠸࡚ࠊ↷ᑕࣃࣝࢫࡢ᫬㛫㛫㝸ࡀࠊ⾲㠃ຍᕤ࡟୚࠼ࡿᙳ㡪࡟ࡘ࠸࡚◊✲࣭ㄪᰝࢆ⾜ࡗࡓࠋ㸰㸬┿✵⣸እ࣭㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ࢩࢫࢸ࣒ࡢ㛤Ⓨ࡜ࣉࣟࢭࢫ◊✲࡬ࡢᒎ㛤 ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࡟࠾࠸࡚ࡣࠊ㧗࠸ࣆ࣮ࢡࣃ࣮࣡ࢆ≉㛗࡜ࡍࡿຍᕤࣉࣟࢭࢫࡀ࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗ
ࡓࠋ▷Ἴ㛗ග㡿ᇦ࡟࠾࠸࡚ࡣࠊ≀㉁ࡣ㧗࠸྾཰⋡ࢆᣢࡕࠊࡲࡓගࡢᅇᢡ㝈⏺ゅࡶ㏆㉥እ࠿ࡽྍどᇦࡢග࡟ẚ࡭࡚ᑠࡉࡃ࡞ࡿࠋࡋࡓࡀࡗ࡚ࠊ▷Ἴ㛗࣭㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ගࡣࠊᴟ⾲㠃ࡢ㉸ᚤ⣽ຍᕤࢆᐇ⌧࡛ࡁࡿࡇ࡜࠿
ࡽὀ┠ࡉࢀ࡚࠸ࡿࠋἼ㛗ࡀ 200 nm ࠿ࡽ 105 nm ࡢ VUV 㡿ᇦ࡟࠾࠸࡚ࡣࠊࣇࢵ໬≀⤖ᬗࡢ㝖ࡃ࡯࡜ࢇ࡝ࡢ
ᅛయᮦᩱࡀᙉ࠸྾཰ࢆ♧ࡍࠋࣇࢵ໬≀⤖ᬗࡣ㏱㐣ᮦ࡜ࡋ࡚฼⏝ࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡾࠊྛ✀ගࣉࣟࢭࢫ࡬ࡢ
ᛂ⏝࡟ࡣ᭷฼࡛࠶ࡿࠋࡇࡢࡓࡵࠊ⢭ᐦຍᕤࡸᴟ⾲㠃ࣉࣟࢭࢫࢆྍ⬟࡜ࡍࡿ VUV ᇦ㉸▷ࣃࣝࢫ㧗㍤ᗘࢥࣄ࣮ࣞ
ࣥࢺග※ࢆᥦ᱌ࡋࠊ୺࡟ᐑᓮ኱Ꮫࡢ࣮ࣞࢨ࣮ࢩࢫࢸ࣒ࢆ⏝࠸࡚ࠊ㛤Ⓨࢆ㛤ጞࡋࡓࠋᅗ 1 ࡟ᴫせࢆ♧ࡍࠋἼ㛗
882 nm ࡜ 800 nm ࡢ 2 ྎࡢ㏆㉥እࢳࢱࣥࢧࣇ࢓࢖࢔࣮ࣞࢨ࣮ࢆࠊࢪࢵࢱ࣮ 2 ps ௨ୗ࡛ྠᮇⓎ᣺ࡉࡏࠊⓎ᣺ࡢࢱ࢖࣑ࣥࢢࡣ PC ࡛ࡢไᚚࢆྍ⬟࡜ࡋࡓࠋἼ㛗 882 nm (Tsunami and Spitfire Pro, Spectra Physics) ࡢ࣮ࣞࢨ࣮ฟຊࢆ 1.2 Torr ࡢ Xe ࢞ࢫ୰࡟㞟ගࡉࡏࠊ➨ 7 ḟ㧗ㄪἼ࡜ࡋ࡚ࠊἼ㛗 126 nm ࢆᚓࡓࠋἼ㛗 800 nm ࡢ࣮ࣞࢨ࣮(Tsunami and Spitfire Ace, Spectra Physics) ࠿ࡽࡢฟຊࡣ Ar ࢞ࢫ୰࡟㞟ගࡋࠊග㟁ሙ࢖࢜ࣥ໬ (OFI) ࡟ࡼࡾࣉࣛࢬ࣐ࢆ⏕ᡂࡋࡓࠋࡇࡢࣉࣛࢬ࣐࠿ࡽࡢ⦆࿴㐣⛬࡛⏕ࡌࡿ Ar2* ࢆ 126 nm ගࡢቑᖜ፹㉁࡜ࡋ࡚⏝࠸ࡓࠋࡇࢀ࡟ࡼࡾࠊ126 nm ࡟࠾࠸࡚ࠊࣇ࣮࢚ࣜ㝈⏺࡜ࡋ࡚ 20 fs ࡢࣃࣝࢫᖜࢆᣢࡘࢥࣄ࣮ࣞࣥࢺගࡀࠊ1 kHz ࡢ⧞ࡾ㏉ࡋ࿘Ἴᩘ࡛ᚓࡽࢀࡿࠋࡇࢀࡲ࡛࡟ࠊἼ㛗 126 nm ࡢ✀ගࡀ 3 ಸ⛬ᗘቑᖜࡉࢀ࡚࠾ࡾࠊࢩࢫࢸ࣒ࡢ᭱㐺໬࡟ࡼࡾ᭦࡞ࡿ㧗ฟຊ໬ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋࡲࡓࠊ㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ࣉࣟࢭࢫ࡟ࡼࡾࠊMgF2 ⤖ᬗࡢෆ㒊ຍᕤ࡟ᡂຌࡋ࡚࠾ࡾࠊ࿘ᮇⓗ࡞ຍᕤ㡿ᇦࢆᙧᡂࡍࡿࡇ࡜࡛ࠊࣇ࢛ࢺࢽࢵࢡᵓ㐀ࢆ᭷ࡍࡿࢹࣂ࢖ࢫࢆస〇ࡍࡿࠋࡇࢀ࡟㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ࢆᑟධࡋࠊ⮬ᕫ఩┦ኚㄪ࡟ࡼࡿᗈᖏᇦ VUV ࢥࣄ࣮ࣞࣥࢺගࡢⓎ⏕ࡀྍ⬟࡜࡞ࡿࠋ㸰㸬㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ຍᕤ࡟࠾ࡅࡿ↷ᑕࣃࣝࢫ㛫㝸ࡀࣉࣟࢭࢫ࡬୚࠼ࡿᙳ㡪 ࡇࡢ࣮ࣞࢨ࣮ࢩࢫࢸ࣒࡟࠾࠸࡚ࡣࠊ᭱኱࡛ 2 Ps ࡢࣃࣝࢫ㐜ᘏࢆ㏆㉥እ㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ฟຊ࡟୚࠼ࡿ
ࡇ࡜ࡀ࡛ࡁࡿࠋࡇࢀࡣගᏛ㐜ᘏ࡟࠾࠸࡚ࡣ 6 m ࡜࠸࠺㛗㊥㞳ࡢග㊰ᕪࡀᚲせ࡜࡞ࡿ㐜ᘏ᫬㛫࡛࠶ࡿࠋࡇࡢ≉㛗ࢆά࠿ࡋ࡚ࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࡢ࢚ࢿࣝࢠ࣮ࡀග྾཰㐣⛬࠿ࡽ㟁Ꮚ㐣⛬ࠊ⇕⦆࿴㐣⛬ࢆ㏻ࡌ࡚ࣉࣟࢭࢫ
ࡀ㐍⾜ࡍࡿ㐣⛬ࢆほ ࡍࡿィ⏬࡛࠶ࡿࠋࡑࢀࡒࢀࡢ࣮ࣞࢨ࣮ฟຊࢆࠊග㊰ࢆྠ୍ࣃࢫୖ࡟㔜ࡡ࠶ࢃࡏࡓᚋ࡟ࠊ

− 48 −

ᅗ 1 ┿✵⣸እ㉸▷ࣃࣝࢫࢥࣄ࣮ࣞࣥࢺගⓎ⏕ࢩࢫࢸ࣒ࣞࣥࢬࢆ⏝࠸࡚ᅛయ⾲㠃࡟㞟ග↷ᑕࡍࡿࠋᅛయ⾲㠃࡟ࣃࣝࢫ㛫㝸ࢆኚ໬ࡉࡏ࡚↷ᑕࡋࠊࡑࡢ㝿ࡢຍᕤ⑞ࢆほᐹࡍࡿࡇ࡜࡛ࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࢚ࢿࣝࢠ࣮ࡢ⦆࿴㐣⛬ࢆほ ࡍࡿࠋࡑࡢ㝿࡟ࣃࣝࢫ㐜ᘏ᫬㛫ࢆኚ࠼࡚ࠊ
ຍᕤ⑞ࡢኚ໬ࢆほ ࡍࡿࡇ࡜࡛ࠊ2 ࡘࡢ࣮ࣞࢨ࣮ࣃࣝࢫ࠿ࡽᅛయ࡟୚࠼ࡽࢀࡿ࢚ࢿࣝࢠ࣮ࡢ᫬㛫ⓗ࡞┦஫స⏝ࢆ᳨ウࡋࠊࣉࣟࢭࢫࡢᇶ♏㐣⛬ࢆ᫂ࡽ࠿࡟ࡍࡿィ⏬࡛࠶ࡿࠋᅗ㸰࡟ࢲࣈࣝࣃࣝࢫ↷ᑕ᫬ࡢࣃࣝࢫ㛫㝸ࢆ 0 ࠿ࡽ 100 ns ࡲ࡛ኚ࠼ࡓ㝿࡟ᚓࡽࢀࡓࢩࣜࢥࣥᇶᯈୖࡢຍᕤ⑞
ࡢኚ໬ࢆ♧ࡍࠋ800 nm ࡢ࣮ࣞࢨ࣮ฟຊࡣ 7 PJ ࡛࠶ࡾ, 882 nm ࡣ 10 PJ ࡜ࡋࠊ↷ᑕ᫬㛫ࡣ 4 sec ࡜ࡋࡓࠋࣃ
ࣝࢫ㛫㝸ࡀ 5 ns ㎶ࡾ࠿ࡽࠊຍᕤ㒊࿘㎶ࡢ⇕ኚᡂ㒊ࡀᑠࡉࡃ࡞ࡗ࡚࠾ࡾࠊ 50ࠥ100 ns ࡛ࡣ࡯࡜ࢇ࡝ほࡽࢀ࡞࠸ࡇ࡜ࡀศ࠿ࡿࠋ⌧ᅾࠊ࣮ࣞࢨ࣮࢚ࢿࣝࢠ࣮ࢆኚ࠼ࠊᐇ㦂ࢆ⾜ࡗ࡚࠾ࡾࠊࡇࢀࡽࡢ⤖ᯝ࠿ࡽࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ຍᕤ࡟࠾࠸࡚ࠊ࣮ࣞࢨ࣮࢚ࢿࣝࢠ࣮ࡀᮦᩱ࡟࡝ࡢᵝ࡟⛣ㆡ࣭ఏᦙࡍࡿ࠿ࢆ᫂ࡽ࠿࡟ࡍࡿணᐃ࡛࠶ࡿࠋ
㸦ඹྠ◊✲ศ㔝㸸ຍᕤࣉࣟࢭࢫᏛศ㔝㸧0s

200 ps500 ps700 ps

1 ns

5 ns

10 ns

50 ns

100 ns
50 Pm

ᅗ 2 ࢲࣈࣝࣃࣝࢫ↷ᑕ࡟࠾࠸࡚ࠊࣃࣝࢫ㛫㝸ࢆኚ࠼ࡓ㝿ࡢຍᕤ⑞ࡢኚ໬

− 49 − ࣮ࣞࢨ࣮ຍᕤ᫬࡟࠾ࡅࡿⅣ⣲⧄⥔ᙉ໬ࣉࣛࢫࢳࢵࢡࡢ⇕ⓗ⌧㇟࡟㛵ࡍࡿᩘ್ゎᯒᮾிᕤ⛉኱Ꮫ ᕤᏛ㒊 ኱ஂಖ཭㞞ᮾிᕤ⛉኱Ꮫ ࣓ࢹ࢕࢔Ꮫ㒊 ⳥ụྖ

1.

ࡣࡌࡵ࡟

Ⅳ⣲⧄⥔ᙉ໬ࣉࣛࢫࢳࢵࢡ(Carbon fiber reinforced plastic: CFRP) ࡣ㸪㍍㔞࡛࠶ࡾ࡞ࡀࡽᙉᗘࡀ㧗࠸ࡓࡵ㸪ࡇࢀࡲ࡛๛ᛶࡀᚲせ࡜ࡉࢀ࡚࠸ࡓᵝࠎ࡞ሙ㠃࡟࠾࠸࡚㸪≉࡟㕲ࡸࢫࢸࣥࣞࢫ࡞࡝ࡢ௦᭰࡜ࡋ࡚฼⏝ࡉࢀ࡚ࡁ࡚
࠸ࡿ㸬≉࡟㸪⇞ᩱຠ⋡ࡢྥୖࡢࡓࡵ࡟㣕⾜ᶵ㸪㕲㐨㸪⮬ື㌴㸪⯪⯧࡜࠸ࡗࡓ㍺㏦ᶵᲔࡢᮦᩱ࡜ࡋ࡚᭷ᮃどࡉࢀ㸪ᐇ㝿ࡢᛂ⏝ࡶ㐍ࢇ࡛ࡁ࡚࠸ࡿ㸬ࡑࡇ࡛㸪᪂ࡋ࠸ษ᩿ຍᕤࡢ᪉ἲ࡜ࡋ࡚㏆ᖺ࣮ࣞࢨ࣮ຍᕤࡀὀ┠ࡉࢀ࡚࠸ࡿ㸬CFRP ࢆ࣮ࣞࢨ࣮࡛㧗ရ㉁࡟
ຍᕤࡍࡿࡓࡵ࡟ࡣ⇕ᙳ㡪㡿ᇦ (HAZ: Heat Affected Zone) ࡢᙧᡂ㐣⛬ࢆゎ᫂ࡍࡿᚲせࡀ࠶ࡿࡀ㸪ࡇࢀࡲ࡛࡟
ᵝࠎ࡞◊✲ࡀ࡞ࡉࢀ࡚࠸ࡿࡶࡢࡢ㸪ᐇ㦂࡟ࡼࡿ≧ἣㄝ᫂ࡀከࡃ㸪⌮ㄽⓗ࡞◊✲ࡀ࠶ࡲࡾ࡞ࡉࢀ࡚࠸࡞࠸㸬≉࡟㸪㏆ᖺ᫂ࡽ࠿࡟࡞ࡗࡓ㸪ᶞ⬡ࡀኚᛶࡋࡓᶞ⬡ኚᛶ㡿ᇦ(Resin alteration zone: RAZ)ࡢᙧᡂ࡟ࡣ࢔ࣈ࣮ࣞࢩࣙࣥࡀ
ᮦᩱ⾲㠃࡟ᙳ㡪ࢆཬࡰࡍ࡜⪃࠼ࡽࢀࡿࡀ㸪CFRP ⾲㠃࡟࠾ࡅࡿ࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥ࡟㛵ࡍࡿ⌮ㄽⓗ࡞ィ⟬➼ࡣ⾜ࢃࢀ࡚࠸࡞࠸㸬ᮏ◊✲࡛ࡣ࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥࢆᶍᨃࡋࡓᅽ⦰ᛶὶయ࡟ࡘ࠸࡚ゎᯒࡍࡿᩘ್ィ⟬ࢥ࣮ࢻࢆ㛤Ⓨࡋ㸪ᐇ㦂࡛ࡣィ ฟ᮶࡚࠸࡞࠸ ns ࣮࢜ࢲ࣮ࡢ▷᫬㛫࡟࠾࠸࡚㸪࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥࡀᮦᩱ⾲㠃࡟࡝ࡢࡼ࠺࡞⇕ᙳ㡪ࢆ୚࠼ࡿࡢ࠿ࢆ᳨ウࡋ㸪RAZ ࡢᙧᡂ࡟ࡘ࠸࡚ࡢࣔࢹࣝࢆᥦ᱌ࡍࡿ㸬

2. ィ⟬᪉ἲ
CFRP ࡟ࣃࣝࢫ࣮ࣞࢨ࣮ࢆ↷ᑕࡋࡓᚋࡣ㸪ᮦᩱࡢ┦ኚ໬㸪໬Ꮫኚ໬➼ࡢ」㞧࡞཯ᛂࡀ㉳ࡇࡾ㧗㧗ᅽࡢ࢞ࢫࡀⓎ⏕ࡋ㸪ࡑࡢ࢞ࢫࡀࡑࡢᅽຊ࡟ࡼࡗ࡚ᄇฟࡍࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ㸪ࡇࢀࡽࡢ཯ᛂ࡟ࡘ࠸࡚඲࡚ࣔࢹࣝ
໬ࡍࡿࡇ࡜ࡣᴟࡵ࡚ᅔ㞴࡛࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪㧗 㧗ᅽࡢ࢞ࢫࡢᣲືࡀᮦᩱ⾲㠃࡟࡝ࡢࡼ࠺࡞ᙳ㡪ࢆ୚࠼ࡿࡢ
࠿ࢆᐃᛶⓗ࡟ㄪ࡭ࡿࡓࡵ㸪ᐇ㦂࡟ࡼࡗ࡚ᚓࡽࢀࡓ㸪࢔ࣈ࣮ࣞࢩࣙࣥࡢ࣮ࣞࢺ࡜࣮ࣞࢨ࣮ࡢࣇ࢚ࣝࣥࢫ࠿ࡽ࢔ࣈ
࣮ࣞࢩࣙࣥࡢึᮇෆ㒊࢚ࢿࣝࢠ࣮ࢆ௬ᐃࡋ㸪ࡉࡽ࡟ࡑࢀࡀ⌮᝿Ẽయ࡜ࡋ࡚᩿⇕⭾ᙇࡋࡓ≧ែࢆึᮇ≧ែ࡜ࡍࡿ࡜࠸࠺⡆᫆ⓗ࡞ࣔࢹࣝ࡟ࡼࡗ࡚ィ⟬ࢆ⾜ࡗࡓ㸬ィ⟬㡿ᇦࡣ஧ḟඖ㍈ᑐ⛠✵㛫࡜ࡋࡓ㸬ᑐ⛠㍈ࢆ୰ᚰ࡟࣮ࣞࢨ࣮ࢆ↷ᑕࡋ㸪࣮ࣞࢨ࣮↷ᑕࢫ࣏ࢵࢺᚄ࡜ྠࡌ
኱ࡁࡉࡢ✰ࡀ✵࠸ࡓ≧ែࢆᶍᨃࡋ㸪ࡑࡢ✰ࡢ୰࡟㸪࢔ࣈ࣮ࣞࢩࣙࣥࡢึᮇ≧ែ࡜ࡋ࡚௬ᐃࡋࡓᅽ⦰ᛶὶయࢆ✰ࡢᗏ࡟㓄⨨ࡋࡓ㸬ࡲࡓ㸪ࡑࡢ࢔ࣈ࣮ࣞࢩࣙࣥࡢึᮇཌࡉࢆ 30 ੇ࡜ࡋࡓ㸬ᑐ⛠㍈ࡣᑐ⛠ቃ⏺᮲௳࡜ࡋ㸪CFRP
ࢆᶍᨃࡋࡓᮦᩱࡢ⾲㠃ࡣ ᗘࡀ 300 K ᅛᐃ࡛ࣀࣥࢫࣜࢵࣉࡢቨቃ⏺࡜ࡋࡓ㸬ࡉࡽ࡟኱Ẽഃࡣ⾪ᧁἼࡀ཯ᑕࡋ࡞
࠸ࡼ࠺࡟㸪ὶฟቃ⏺᮲௳ࢆ୚࠼ࡓ㸬࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥࢆᅽ⦰ᛶὶయ࡜ࡋ࡚ᶍᨃࡋ㸪㐃⥆ࡢᘧ㸪㐠ື㔞ಖᏑࡢᘧ㸪࢚ࢿࣝࢠ࣮ಖᏑࡢᘧ࡟
ࡘ࠸࡚᭷㝈య✚ἲࢆ⏝࠸࡚ゎ࠸࡚࠸ࡿ㸬

3. ィ⟬⤖ᯝ࡜⪃ᐹᗘศᕸࡢ᫬㛫ኚ໬࡟ࡘ࠸࡚ࡢィ⟬⤖ᯝࡢẚ㍑ࢆᅗ 1 ࡟♧ࡍ㸬࡞࠾㸪ࡇ࡜࠿ࡽ㸪࣮࢝ࣛࣂ࣮ࡣ୧᪉࡛ྠࡌࡶࡢࢆ౑⏝ࡋࡓ㸬

− 50 −

ᗘࡀ▷᫬㛫ࡢෆ࡟ᛴ⃭࡟ኚ໬ࡍࡿ

ᅗ 1 ࡟♧ࡍ㏻ࡾ㸪h ࢆึᮇ✰῝ࡉ࡜ࡋࡓ࡜ࡁ㸪h=30 ੇࡢሙྜࡣ㸪࢔ࣈ࣮ࣞࢩࣙࣥࣉ࣮࣒ࣝ࡟ࡼࡗ࡚⏕ࡌࡓ⾪ᧁἼࡀ㸪ୖ᪉࡟ᗈࡀࡿ࡜ඹ࡟ CFRP ࡢ⾲㠃࡟ἢࡗ࡚ఏᦙࡋ࡚࠾ࡾ㸪ᮦᩱ⾲㠃࡟⇕ᙳ㡪ࢆ୚࠼ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ຍᕤ㒊௜㏆ࡢ⾲㠃࡟࠾࠸࡚ࡣ⾪ᧁἼࡢෆഃࡣࡑࢀ࡯࡝㧗࡟࡞ࡗ࡚࠸࡞࠸ࡇ࡜ࡶࢃ࠿ࡿ㸬୍᪉࡛㸪

h=100 ੇࡢሙྜࡣ㸪࢔ࣈ࣮ࣞࢩࣙࣥࣉ࣮࣒ࣝࡀᮦᩱ࡟ἢࡗ࡚ᗈࡀࡿࡼࡾࡶୖ᪉࡟ఏࢃࡿᡂศࡢ᪉ࡀ኱ࡁࡃ㸪ຍᕤ㒊௜㏆ࢆྵࡵࡓ࢔ࣈ࣮ࣞࢩࣙࣥෆ㒊ࡀ㧗࡟ಖࡓࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ᅗ 1 ึᮇ✰῝ࡉ h ࡀ␗࡞ࡿሙྜࡢ࢔ࣈ࣮ࣞࢩࣙࣥࣉ࣮࣒ࣝࡢ⭾ᙇࡢᵝᏊࡢẚ㍑
᭦࡟㸪ィ⟬⤖ᯝ࠿ࡽྛ఩⨨࡟ࡘ࠸࡚ᖖ ࠿ࡽࡢ ᗘᕪࢆ᫬㛫࡟ᑐࡋ࡚✚ศࡋࡓ⤖ᯝࢆᅗ 2 ࡟♧ࡍ㸬ࡇࡢ⤖ᯝ࠿ࡽ㸪✰ࡢ῝ࡉࡀ 30 ੇࡢሙྜࡣᗈ࠸㡿ᇦ࡟࠾࠸࡚㸪ᮦᩱ⾲㠃࡟࠶ࡿ⛬ᗘࡢ⇕ὶ᮰ࢆ୚࠼࡚࠸ࡿࡇ࡜㸪✰ࡢ
῝ࡉࡀ 100 ੇࡢሙྜ࡟ࡣ㸪✰ࡢ࿘㎶࡟኱ࡁ࡞⇕ὶ᮰ࢆ୚࠼ࡿࡀ㸪✰࠿ࡽ 100 ੇ௨ୖ㞳ࢀࡓ㡿ᇦ࡟ࡣ⇕ὶ᮰ࢆṤ࡝୚࠼࡞࠸ࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ࡇࢀࡣ㸪࣐ࣛࣥᩓ஘ศගศᯒࢆ⾜ࡗࡓ㝿ࡢ⤖ᯝ[1]࡜ࡶᐃᛶⓗ࡟୍⮴ࡋ࡚࠸ࡿ㸬ᅗ 2 ྛ఩⨨࡟࠾ࡅࡿᖖ ࠿ࡽࡢ ᗘᕪࡢ᫬㛫✚ศ

4. ⤖ㄽ
RAZ ࡢᙧᡂࡣ࣮ࣞࢨ࣮ຍᕤ࡟ࡼࡗ࡚ᙧᡂࡉࢀࡓ✰ࡢ῝ࡉࡀὸ࠸ෆ࡟ᙧᡂࡉࢀࡿࡇ࡜ࡀ♧၀ࡉࢀࡿィ⟬ࢥ࣮ࢻࡢ㛤Ⓨࢆ⾜ࡗࡓ㸬

5. ཧ⪃ᩥ⊩[1] Y. Sato, M. Tsukamoto, F. Matsuoka, K Yamashita, K. Takahashi, S. Masuno: Trans. fundam. mater. Inst. Electr. Eng. Jpn. 135(2015) (in Japanese) pp.569-574

㸦ඹྠ◊✲ศ㔝㸸ຍᕤࣉࣟࢭࢫᏛศ㔝㸧− 51 −

ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥ࡟ࡼࡾ࣍࢘㓟ሷ໬ྜ≀⾲㠃࡟ᙧᡂࡉࢀࡓ࣮࣍ࣝᙧែࡢ
࣮ࣞࢨ࣮೫ග౫Ꮡ                         ⛅⏣኱ᏛᕤᏛ㈨※Ꮫ◊✲⛉                         ᑠ⋢ ᒎᏹࠊ㧗ᶫᬛᏊࠊᕤ⸨⍞ᕫࠊ⁁ཱྀ኱㍜
1. ⫼ᬒ࡜┠ⓗ ᭱㏆ࠊᡃࠎࡣࠊࣇ࢙࣒ࢺ⛊㉸▷ࣃࣝࢫ࣮ࣞࢨ࢔ࣈ࣮ࣞࢩࣙࣥ࡟ࡼࡿ㏱᫂」ྜ࢖࢜ࣥ໬ྜ≀⾲㠃࡟࣮ࣞࢨἼ㛗௨ୗࡢࢼࣀ࣮࣍ࣝ࢔ࣞ࢖ࡢᙧᡂ࡟ᡂຌࡋࠊ
ࡑࡢ◊✲㐣⛬࡛ࠊ௨ୗ࡟グ㏙ࡍࡿࡼ࠺࡞᪂ወ࡞⌧㇟ࢆ࡜ࡋ࡚ࠊ
」ྜ࢜࢟ࢯ࢔ࢽ࢜ࣥᇶࢆࡶࡘ࣍࢘㓟ሷ⤖ᬗཬࡧ࢞ࣛࢫ⾲㠃࡟ྠࡌࣅ࣮࣒ᙉᗘࣉࣟࣇ࢓࢖ࣝࡢࣇ࢙࣒ࢺ⛊࣮ࣞࢨࡢࢩࣥࢢࣝࣃࣝࢫ↷ᑕࡢ࢔ࣈ࣮ࣞࢩ࡛ࣙࣥᙧᡂࡉࢀࡿ࣮ࣞࢨἼ㛗௨ୗ 㹼QP ࡢࢼࣀ࣮࣍ࣝࡢᙧែࡀ
ྠࡌ࡟ࡶᣊࢃࡽࡎ࢞ࣛࢫ࡜⤖ᬗ࡛ࡣ␗࡞ࡿࡇ࡜ࠊࡲࡓ⤖ᬗࡢᵓ㐀࡟౫Ꮡࡋ࡚ኚ໬ࡍࡿ⌧㇟ࢆぢฟࡋࡓࠋ
౛࠼ࡤࠊLi+/B3+⤌ᡂẚ 1/2 ࡢ Li2O·2B2O3 (LTB)࢞ࣛࢫ࡜ Li2B4O7 (LTB) ⤖ᬗ(ṇ᪉ᬗ)ࠊLi+/B3+ ⤌ᡂẚ 1 /3 ࡢ
Li2O·3B2O3 (LBO) ࢞ࣛࢫ࡜ LiB3O5 (LBO) ⤖ᬗ(ᩳ᪉ᬗ)ࠊ࠾ࡼࡧ SrO·2B2O3 (SBO)࢞ࣛࢫ࡜ SrB4O7 (SBO)⤖ᬗ(ᩳ᪉ᬗ) ⾲㠃࡟ࠊࢩࣥࢢࣝࣃࣝࢫ↷ᑕࡢ࢔ࣈ࣮ࣞࢩ࡛ࣙࣥᙧᡂࡉࢀࡿࢼࣀ࣮࣍ࣝᙧែࡢ࢞ࣛࢫ࡜⤖ᬗ࡟ࡼࡿ㐪࠸ࠊࡲࡓ⤌ᡂ࡟ࡼࡿ㐪࠸ࢆሗ࿌ࡋ࡚ࡁࡓࠋ[1,2] ලయⓗ࡟ࡣࠊ」ྠࡌ⤌ᡂࡢ࣍࢘㓟ሷ⤖ᬗ࡜࢞ࣛࢫ࡛ࡣࠊᙧᡂࡉࢀࡓ࣮ࣞ
ࢨἼ㛗௨ୗ 㹼QP ࡢࢼࣀ࣮࣍ࣝᙧែࡀ␗࡞ࡾࠊࡇࢀࡽ  ✀ࡢ࢞ࣛࢫ࡛ࡣࠊ࣮࣍ࣝ⾲㠃ᙧ≧ࡣࠊ࣮ࣞࢨ࣮ࡢ࢞
࢘ࢫࣅ࣮࣒ࣃࢱ࣮ࣥࢆ཯ᫎࡍࡿ࡜ᛮࢃࢀࡿ෇ᙧ≧ࠊ࢞ࣛࢫ࡜ྠ⤌ᡂࡢ⤖ᬗ࡛ࡣࠊࣃࢱ࣮ࣥࢆ཯ᫎࡏࡎከゅᙧ≧ 
ゅᙧ ゅᙧ➼ ࡜࡞ࡾ᩿㠃᪉఩ࡣ⤖ᬗ⤌ᡂ࣭ᵓ㐀࡛␗࡞ࡾᆺ㠃ࡀኚ໬ࡋ࡚࠸ࡿࠋࡲࡓ࣮࣍ࣝෆ㒊࡟ࢼࣀࢻࢵࢺࡀ
෇೫ග↷ᑕ࡛ᙧᡂࡍࡿ⌧㇟ࡶぢฟࡋࡓࠋ࢞ࣛࢫ࡜⤖ᬗࡢ࣮࣍ࣝᙧែࡢ㐪࠸ࡣࠊ༢࡟࢞ࣛࢫࡣᵓ㐀ࢆࡶࡓࡎ➼᪉ⓗࠊ⤖ᬗࡣ᱁Ꮚᵓ㐀ࢆ཯ᫎࡍࡿ࡜࠸࠺ゎ㔘࡛ࡣㄝ᫂ࡀ࡛ࡁ࡞࠸ࠋఱᨾ࡞ࡽ⏦ㄳ⪅ࡣ࢔࣑ࣝࣀࢣ࢖㓟ሷ⤖ᬗ ṇ᪉ᬗ ࡛ F㠃࡟෇ᙧ≧ࢼࣀ࣮࣍ࣝࡀᙧᡂࡉࢀࡿ⤖ᯝࢆᚓ࡚࠸ࡿ஦࡟ࡼࡿࠋᚑࡗ࡚ࠊ࡞ࡐ」ྜ࢖࢜ࣥ໬ྜ≀࡛ࡣࠊ⤖ᬗ࡜ྠ⤌ᡂࡢ࢞ࣛࢫࡢ㛫࡛ࠊࡲࡓ⤌ᡂ࣭ᵓ㐀࡟ࡼࡗ࡚␗࡞ࡿ࣮࣍ࣝᙧែࢆᙧᡂࡍࡿࡢ࠿ࠊ⣲ບ㉳≧ែ࡜࣮࣍ࣝᙧែ࡟࡝ࡢࡼ࠺
࡞㛵㐃ࡀ࠶ࡿࡢ࠿࡜࠸࠺␲ၥࡀ⏕ࡌࡿࠋ ⌧ẁ㝵࡛ࡣࠊ
࣮࣍ࣝࡢᙧែኚ໬࡟ᑐࡍࡿ⌮ㄽⓗ࡞ㄝ᫂ࡀ࡞ࡉࢀ࡚࠾ࡽࡎࠊ
ᮏ⌧㇟ࢆゎ᫂ࡍࡿࡇ࡜࡛ࠊ
ග࡟ࡼࡿㄏ㟁యࡢ⣲ບ㉳࡜࢔ࣈ࣮ࣞࢩࣙࣥ➼ࡢࣉࣟࢭࢵࢩࣥࢢ㐣⛬࡟㛵ࡍࡿᇶᮏⓗ▱ぢࢆ୚࠼ࡿ࡜ᮇᚅࡉࢀࡿࠋ ᮏᐇ㦂ࡣࠊ࢔ࣈ࣮ࣞࢩࣙࣥ࡟ࡼࡿࢼࣀ࣮࣍ࣝᙧែࡢኚ໬࡟㛵ࡍࡿ◊✲ࡢ୍⎔࡜ࡋ࡚ࠊ
✀ࡢ⤌ᡂࡢࣜࢳ࣒࢘࣍࢘㓟ሷࡢ࢞ࣛࢫ࡜⤖ᬗࠊLi+/B3+⤌ᡂẚ 1/2 ࡢ Li2O·2B2O3 (LTB)࢞ࣛࢫ࡜ Li2B4O7 (LTB) ⤖ᬗ(ṇ᪉ᬗ) ࠾ࡼࡧ Li+/B3+ ⤌ᡂẚ 1 /3 ࡢ Li2O·3B2O3 (LBO) ࢞ࣛࢫ࡜ LiB3O5 (LBO) ⤖ᬗ(ᩳ᪉ᬗ)࡟ᑐࡋ࡚ࠊ┤⥺࠾ࡼࡧ෇೫ග࡛࢔ࣈ࣮ࣞࢩࣙࣥࢆ⾜࠸ࠊ࣮࣍ࣝᙧែࡢ࣮ࣞࢨ೫ග౫Ꮡࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜࡛࠶ࡿࠋ

2. ᐇ㦂᪉ἲ LTB ࢞ࣛࢫ࠾ࡼࡧ LBO ࢞ࣛࢫసᡂࡣࠊⓑ㔠ࡿࡘࡰ࡟ཎᩱࢆ඘ሸࡋࠊ㟁Ẽ⅔ࢆ⏝࠸࡚ࠊ950Υࠊ1h ಖᣢᚋࠊ⮬↛ᨺ෭(㝆 ㏿ᗘ⣙ 5.0Υ3.0Υ/min)ࡋྜᡂࡋࡓࠋ࣮ࣞࢨ࣮↷ᑕ⏝ LTB ࠾ࡼࡧ LBO ༢⤖ᬗࡣࢆࣈࣜࢵࢪ࣐ࣥἲ࡛⫱ᡂ
ࡉࢀࡓᕷ㈍ရࢆ⏝࠸ࡓࠋࡇࢀࡽ㸲ࡘࡢ LTB ࠾ࡼࡧ LBO ࢞ࣛࢫ࠾ࡼࡧ⤖ᬗࡣࠊᴟ➃⣸እࢩࣥࢡࣟࢺࣟࣥ㌶㐨ᨺᑕග(UVSOR)ࢆ⏝࠸ࠊⓎගࠊບ㉳࠾ࡼࡧ྾཰ࢫ࣌ࢡࢺࣝࢆ ᐃࡋࡓࠋ࢔ࣈ࣮ࣞࢩࣙࣥ࡟⏝࠸ࡓࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࡣࠊἼ㛗 Ȝ㸻775nmࠊࣃࣝࢫᖜ 150fsࠊ࿘Ἴᩘ 1kHzࠊ┤⥺೫ග࠾ࡼࡧ
෇೫ග࡛ TEM00 ࣮ࣔࢻࡢࣅ࣮࣒ࢆ㢧ᚤ㙾࡛㞟ග(ࣅ࣮࣒ࢫ࣏ࢵࢺᚄ Ȧ㸻1,050ȝm)ࡋࠊࢧࣥࣉࣝࢆࢫ࢟ࣕࣥࡋ࡚ࠊ㸯࣮࣍ࣝ࠶ࡓࡾࢩࣥࢢࣝࣃࣝࢫ㸦ࢩࣙࢵࢺ㸧↷ᑕ࡛ࠊฟຊ 0.5ࠊ0.4ࠊ0.3ࠊ0.2ࠊ0.15 mW (ࣇ࢚ࣝࣥࢫ 57.8ࠊ46.2ࠊ34.7ࠊ
23.1ࠊ17.3 J/cm2)࡜ኚ໬ࡉࡏ࡚࣮࣍ࣝࢆᙧᡂࡋࡓࠋࣅ࣮࣒ࣉࣟࣇ࢓࢖ࣝࡣࠊ࡯ࡰ෇ᙧ࠶ࡿ࠸ࡣᴃ෇ᙧ≧ࡢ࢞࢘ࢩ࢔

− 52 −

࡛ࣥ࠶ࡿࠋᙧᡂࡉࢀࡓ࣮࣍ࣝࡣࠊFE-SEM ࡛⾲㠃ᙧ≧ࢆࠊFIB-SEM ࡛᩿㠃ࢆほᐹࡋࠊ࢞ࣛࢫ࡜⤖ᬗ⾲㠃ࡢ࣮࣍ࣝᙧែࡢ࣮ࣞࢨ࣮೫ග࡟ࡼࡿኚ໬ࢆㄪ࡭ࡓࠋ

3. ⤖ᯝ࠾ࡼࡧ⪃ᐹ⤖ᯝࠚ྾཰➃Ἴ㛗ࡣࠊLTBࠊLBO ࢞ࣛࢫࡣ 190nm, LTB ⤖ᬗࡣ 170 ㏆㎶࡛┿✵⣸እᇦࡲ࡛㏱᫂࡞࣡࢖ࢻࢠࣕࢵ
ࣉ㓟໬≀࡛࠶ࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋ157nm ┿✵⣸እගບ㉳࡛ LTB ࢞ࣛࢫࡣ 330nmࠊ423nm ࣆ࣮ࢡࠊLTB ⤖ᬗࡣ 360nm ࣆ࣮ࢡࠊLBO ⤖ᬗࡣ 340 nm ࡟ࣆ࣮ࢡࡢࣈ࣮ࣟࢻ࡞ᅛ᭷ⓎගࡀぢࡽࢀࡓࠋLTB,LBO ⤖ᬗࡢⓎගࣂࣥ
ࢻࡣ BO4 BO3 ศᏊᇶෆ㑄⛣࡟ࡼࡾ⏕ࡌࡿศᏊᛶࡢ⮬ᕫ᮰⦡ບ㉳Ꮚ࡟ᖐᒓࡉࢀࡿࠋ୍᪉ࠊLTB ࢞ࣛࢫࡢⓎගࡣⰍ୰ᚰ࡟ࡼࡿ࡜⪃࠼ࡽࢀࡿࠋ
┤⥺೫ග࡟ࡼࡿ࢔ࣈ࣮ࣞࢩ࡛ࣙࣥࡣࠊLTBࠊLBO ࢞ࣛࢫ࡛ࡣ⤌ᡂẚ࡜ࣇ࢚ࣝ̿ࣥࢫ࡟࠿࠿ࢃࡽࡎࠊࣅ࣮࣒ࣉࣟ
ࣇ࢓࢖ࣝ࡜ྠࡌ෇ᙧ≧࡜࡞ࡾࠊLTBࠊLBO ⤖ᬗ࡛ࡣࠊLTB ࡣ{hh0}ᆺ㠃ࠊLBO ࡣ{h00},{00l}ᆺ㠃࡟ᖹ⾜࡞᩿㠃ࢆࡶࡘ㸲ゅᙧ (ṇ᪉ᙧ)࡜࡞ࡗ࡚࠸ࡿࠋLTBࠊLBO ࢞ࣛࢫࡢ⾲㠃ࡢ࣮࣍ࣝ┤ᚄࡣἼ㛗 3ǌ/2-5ǌ /2 ࡜ 5ǌ/3-3ǌ ࡛Ἴ㛗ࡼࡾ኱ࡁ࠸ࡀࣅ࣮࣒ࢫ࣏ࢵࢺᚄ௨ୗࠊLTB ࡜ LBO ⤖ᬗࡢ࣮࣍ࣝࡢ୍㎶ࡣࠊ4ǌ/5-7ǌ/5 ࡜ Ȝ/3Ȝ-7Ȝ/4 ࡛ࠊἼ㛗ཬࡧࣅ࣮࣒ࢫ࣏ࢵࢺᚄ௨ୗࡢࢼࣀ࣮࣍ࣝࡀᙧᡂࡉࢀࡓࠋ )LJ D  G ࣮࣍ࣝᙧែࡣ LTBࠊLBO ࢞ࣛࢫࡣࠊ෇ᰕ(෇㗹)≧࣮࣍ࣝࠊ୍᪉ࠊ⤖ᬗࡣ㸲ゅᰕ≧(ṇ᪉ᙧ)ࡢ࣮࡛࣍ࣝࠊ῝ࡉࡣྠࡌࣇ࢚ࣝࣥࢫ࡛ࡣ LTB ࢞ࣛࢫ࡜⤖ᬗࡣ 0.59ࠊ
1.69Ǎm ࡛ࠊLBO ࢞ࣛࢫ࡜⤖ᬗࡼࡾ(2.9, 2.0Ǎm)ࡶὸ࠸ࠋ
෇೫ග࡟ࡼࡿ࢔ࣈ࣮ࣞࢩ࡛ࣙࣥࡣࠊLTBࠊLBO ࢞ࣛࢫ࡛ࡣ┤⥺೫ගࡢሙྜ࡜ྠᵝ࡟࣮࣍ࣝࡢᙧ≧ࡣࣅ࣮࣒ࣉࣟ
ࣇ࢓࢖ࣝࢆ཯ᫎࡋࡓ࡜⪃࠼ࡽࢀࡿ෇ᙧࡲࡓࡣᴃ෇ᙧ࡟࡞ࡿࡇ࡜ࡀほᐹࡉࢀࡓࠋ ᅗ  D  E ᅗ  D  E
LTBࠊLBO ⤖ᬗ࡛ࡣࠊෆ㒊ࡢ࣮࣍ࣝᙧ≧࡟╔┠ࡍࡿ࡜ᅄゅᙧ≧࣮࣍ࣝࡀᙧᡂࡉࢀࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋࡲࡓࠊLTB⤖ᬗ࡛ࡣࣇ࢚ࣝࣥࢫ࡟ࡼࡗ࡚࣮᩿࣍ࣝ㠃ࡢ㸲ゅᙧࡢ࣮᩿࣍ࣝ㠃᪉఩ࡀኚ໬ࡋ࡚࠸ࡿ஦ࡀศ࠿ࡗࡓࠋ ᅗ  D  E ᅗ  D  E  ࣮࣍ࣝࡢ኱ࡁࡉࡣ LTBࠊLBO ⤖ᬗ࡛ࡣࠊ୍㎶ࡀ Ȝ/4Ȝ-7Ȝ/8ࠊ1/2Ȝ-Ȝ ࡛Ἴ㛗࠾ࡼࡧࣅ࣮࣒ࢫ࣏ࢵࢺᚄ
௨ୗ࡛࠶ࡗࡓࠋLTBࠊLBO ࢞ࣛࢫ࡛ࡣࠊ3Ȝ/2 -3Ȝࠊ5Ȝ/4 -7/4Ȝ ࡛Ἴ㛗ࡼࡾ኱ࡁ࠸ࡀᅇᢡ㝈⏺࡜ྠ⛬ᗘ࠶ࡗࡓࠋ
ࢩࣥࢢࣝࣃࣝࢫ↷ᑕ࡟ࡼࡿ࢔ࣈ࣮ࣞࢺࡉࢀࡓ㡿ᇦ࡟ᙧᡂࡉࢀࡿ࣮࣍ࣝᙧែࡢ೫ග౫Ꮡࢆ⤌ᡂࡢ㐪࠸࡟ࡘ࠸࡚ࡲ
࡜ࡵࡿࠋ LTBࠊLBO ࢞ࣛࢫ࡜ LTBࠊLBO ⤖ᬗࡢ࣮࣍ࣝᙧែࡢ೫ග࡟ࡼࡿኚ໬࡟╔┠ࡍࡿ࡜ࠊLTBࠊLBO ࢞ࣛࢫࡣ೫ග࡟ࡼࡽࡎ෇ᙧ࡛࠶ࡗࡓࠋ LTB ⤖ᬗࡣࠊ┤⥺೫ග࡛ࡣ᩿㠃ࡀ{hh0}ᆺ㠃࡟ᖹ⾜࡞ᅄゅᙧ≧࣮࣍ࣝࡀᙧᡂࡉࢀ
ࡓࡢ࡟ᑐࡋࠊ෇೫ග࡛ࡣ{hh0}ᆺ㠃࠿ࡽ 45rᅇ㌿ࡋࡓᵝ࡞ᅄゅᙧ≧࣮࣍ࣝࡀᙧᡂࡉࢀ࡚࠸ࡓࠋࡇࢀࡽᅄゅᙧ≧ࡢ࣮࣍ࣝࡢᙧᡂࡣࠊ೫ග࡟ࡼࡽࡎ STE ศᕸࡸ༢఩᱁Ꮚࢆ཯ᫎࡋ࡚࠸ࡿྍ⬟ᛶ࡜᥎ᐃࡉࢀࡿࠋຍ࠼࡚ࠊᅄゅᙧࡢ᩿㠃᪉఩ࡣ೫ග࡟ࡼࡾ␗࡞ࡿྍ⬟ᛶࡀ࠶ࡿࡢ࡛ࡣ࡞࠸࠿࡜⪃࠼ࡽࢀࡿࠋLBO ࢞ࣛࢫࡣ೫ග࡟ࡼࡽࡎ෇ᙧ࡛ࠊLBO ⤖ᬗࡶ㸲ゅᙧࡢ᩿㠃᪉఩ࡣ೫ග࡟࠿࠿ࢃࡽࡎࠊᩳ᪉ᬗᵓ㐀ࢆ཯ᫎࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ{h00}{00l}ᆺ㠃࡟ᖹ⾜࡞ᅄゅᙧࡀᙧᡂࡉࢀ࡚࠸ࡓࠋࡲࡓࠊ࣮࣍ࣝࡢ᩿㠃ᙧ≧࠿ࡽࠊLTBࠊLBO ࢞ࣛࢫ෇ᰕ࠶ࡿ࠸ࡣ୸ࡳࢆᖏࡧࡓ෇㗹ྎᙧ≧࡛ࠊLTBࠊ
LBO ⤖ᬗ࡛ࡣ࣮࣍ࣝࡣ෇ᰕ≧࡜࡞ࡗࡓࠋ㸦ᅗ  D  E  LBO ࢞ࣛࢫࡢ෇೫ග࡜┤⥺೫ගࡢ౛㸧 
Fig. 1. SEM images of ablated holes on the surface of LTB glasses with (a) circularly
polarized laser pulse with an intensity of 0.2 mW, (b) linearly polarized laser pulse
with an intensity of 0.15 mW
Fig. 2. SEM images of ablated holes on the surface of LBO glasses with (a) circularly
polarized laser pulse with an intensity of 0.2 mW, (b) linearly polarized laser pulse
with an intensity of 0.15 mW− 53 −

Fig. 3. SEM images of ablated holes on the surface of LTB crystals with (a) circularly
polarized laser pulse with an intensity of 0.2 mW, (b) linearly polarized laser pulse withan intensity of 0.15 mW

Fig. 4. SEM images of ablated holes on the surface of LTB crystals with (a) circularly
polarized laser pulse with an intensity of 0.2 mW, (b) linearly polarized laser pulse withan intensity of 0.15 mW

Fig. 5. FIB-SEM three dimensional images (cross sectional view) of naoholes of LBO
glasses with (a) circularly polarized laser pulse, (b) linearly polarized laser pulse

ࡇࡇ࡛ࠊLTBࠊLBO ࢞ࣛࢫ࡜ LTBࠊLBO ⤖ᬗࡢ࣮࣍ࣝᙧែࡢ೫ග౫
Ꮡࢆ㆟ㄽࡍࡿࠋ⤌ᡂࡢ␗࡞ࡿ 2 ࡘࡢ࢞ࣛࢫ࡛ࡣ࣮࣍ࣝᙧែࡣ೫ග࡟౫Ꮡ
ࡏࡎࠊࣅ࣮࣒ࣃࢱ࣮ࣥࢆ཯ᫎࡋࡓ࡜⪃࠼ࡽࢀࡿ෇ᙧࡲࡓࡣᴃ෇ᙧ≧࡛࠶ࡾࠊࡇࢀࡣ࢞ࣛࢫ୰࡟➼ἲⓗ࡟ศᕸࡋ࡚࠸
ࡿḞ㝗࡟᮰⦡ࡉࢀࡓ㟁Ꮚࡀ࣮ࣞࢨ࣮ບ㉳ࡉࢀࢡ࣮ࣟࣥ⇿Ⓨ࡛⤖ྜࡀษࢀ࢔ࣈ࣮ࣞࢩࣙࣥࡀ⏕ࡌࡓࡢ࡛ࡣ࡞࠸࠿࡜
᥎ᐃࡉࢀࡿࠋ࢞ࣛࢫ࡜ྠࡌ⤌ᡂࢆᣢࡘ 2 ࡘࡢ⤖ᬗࡢ࣮࣍ࣝᙧែࡣྠᵝ࡟ࠊ೫ග࡟ࡣ౫Ꮡࡏࡎඹ࡟ᅄゅᙧ≧࡛࠶ࡿࠋ⤖ᬗ࡛ࡣࠊ࢔ࣈ࣮ࣞࢩࣙࣥບ㉳ึᮇ࡛ BO4 ࡲࡓࡣ BO3 ᇶ࡟⏕ࡌࡿ STE ࡢศᕸࡸ BO4 ࡲࡓࡣ BO3 ᇶࡢࢿࢵࢺ࣮࣡ࢡ
༢఩᱁Ꮚ࡟┦㛵ࡀ࠶ࡿ࡜⪃࠼ࡽࢀ೫ග࡟ࡼࡿࡶࡢ࡛ࡣ࡞࠸࡜᥎ᐃࡉࢀࡿࠋ ຍ࠼࡚ࠊ෇೫ග࡛ᅄゅᙧ≧ࡢ᩿㠃ࡢྥࡁࡀኚ໬ࡍࡿࡢࡣࠊ࢔ࣈ࣮ࣞࢩ᩿ࣙࣥ㠃ࡀ㟁ሙࡢྥࡁ࡟౫Ꮡࡋࠊࡑࡢ⤖ᯝࠊ೫ග౫Ꮡࢆ♧ࡋ࡚࠸ࡿࡢ࡛ࡣ࡞࠸࠿࡜
⪃࠼ࡽࢀࡿࠋࡇࡢ೫ග౫Ꮡ࡟ࡘ࠸࡚ࡣࡉࡽ࡟᳨ウࡀᚲせ࡛࠶ࡿࠋ4. ⤖ㄽ
LTBࠊLBO ࢞ࣛࢫ⾲㠃࡟ᙧᡂࡉࢀࡓ࣮࣍ࣝࡣࠊ࢞ࣛࢫ࡛ࡣࠊ෇೫ගࠊ┤⥺೫ග࡜ࡶ࡟⾲㠃ࡢ࣮࣍ࣝ┤ᚄࡣࠊἼ㛗ࡼࡾࡣ኱ࡁ࠸ࡀࠊᅇᢡ㝈⏺࡜࡯ࡰྠࡌ኱ࡁࡉ࡜࡞ࡾࠊ⤖ᬗ࡛ࡣ㜈್㏆ഐ࡛ࡣࠊ෇೫ගࠊ┤⥺೫ග࡜ࡶ࡟࣮࣍ࣝࡢ
኱ࡁࡉࡣἼ㛗࠾ࡼࡧᅇᢡ㝈⏺௨ୗ࡟࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
࣮࣍ࣝࡢᙧែࡣࠊ෇೫ග࠾ࡼࡧ┤⥺೫ග࡟࠾࠸࡚ࡶࠊ෇ᙧ≧ࡢ࣮࣍ࣝࡀᙧᡂࡉࢀࠊ࣮ࣞࢨ࣮ࡢ೫ග࡟౫Ꮡࡋ࡞࠸
஦ࡀศ࠿ࡗࡓࠋ෇ᙧ࣮࣍ࣝࡣࠊ࣮ࣞࢨ࣮ࣅ࣮࣒ࡢࣉࣟࣇ࢓࢖ࣝࢆ཯ᫎࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋLTBࠊLBO ⤖ᬗࡣࠊ೫ග࡟ࡼࡽࡎ┤⥺೫ග࠾ࡼࡧ෇೫ග࡟࠾࠸࡚ࡶࣅ࣮࣒ࣃࢱ࣮ࣥ࡜ࡣ␗࡞ࡾࠊ࣮࣍ࣝᙧ≧ࡀඹ࡟ᅄゅᙧ≧࡜࡞ࡗࡓࠋ
LBO ⤖ᬗ࡛ࡣࠊ࣮᩿࣍ࣝ㠃ࡣ೫ග࡟ࡼࡽࡎྠࡌ࡛࠶ࡗࡓࡢࡀࠊLTB ⤖ᬗ࡛ࡣࠊ┤⥺೫ග࡛ࡣ᩿㠃ࡀ{hh0}ᆺ㠃࡟ᖹ
⾜࡞ᅄゅᙧ≧࣮࣍ࣝࡀᙧᡂࡉࢀࡓࡢ࡟ᑐࡋࠊ෇೫ග࡛ࡣ┤⥺೫ගࡢሙྜ࡜ẚ࡭ࡿ࡜ࠊ{hh0}ᆺ㠃࠿ࡽ 45rᅇ㌿ࡋࡓ
ᵝ࡞ᅄゅᙧ࣮࣍ࣝࡀᙧᡂࡉࢀࠊ೫ග࡟ࡼࡗ࡚ 4 ゅᙧࡢ᩿㠃᪉఩ࡀኚ໬ࡋ࡚࠸ࡿࠋLTBࠊLBO ⤖ᬗࡣࣅ࣮࣒ࣃࢱ࣮
ࣥ࡜ࡣ␗࡞ࡾࠊ࣮࣍ࣝᙧ≧ࡀඹ࡟ᅄゅᙧ≧࡛࠶ࡿࠋࡇࢀࡣ࢔ࣈ࣮ࣞࢩࣙࣥึᮇ࡟ᙧᡂࡉࢀࡿ STE ࡢศᕸࡸ BO4 ࡸ
BO3 ᇶࡢࢿࢵࢺ࣮࣡ࢡᵓ㐀ࡸ༢఩᱁Ꮚ࡟㛵ಀࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ୍᪉ࠊ೫ග࡟ࡼࡿࡶࡢ࡛ࡣ࡞࠸࡜⪃࠼ࡽࢀࡿࠋ
ཧ⪃ᩥ⊩ >1@ ᕤ⸨⍞ᕫࠊ㧗ᶫᬛᏊࠊᑠ⋢ᒎᏹࠊሯᮏ㞞⿱ࠊす㔝₶୍ࠊᮡᮏ႐ṇࠊ➨ 28 ᅇ᪥ᮏࢭ࣑ࣛࢵࢡࢫ༠఍⛅Ꮨࢩ࣏ࣥࢪ࣒࢘ ண✏㞟 2PN09 ࠊ2016 ᖺ 9 ᭶ 17 ᪥ ᐩᒣ኱Ꮫ        [2] ᕤ⸨⍞ᕫࠊ㧗ᶫᬛᏊࠊΏ㑔⋞ᇶࠊᑠ⋢ᒎぴᏹࠊሯᮏ㞞⿱ 2016 ᖺ᪥ᮏ䝉䝷䝭䝑䜽䝇ᖺ఍ ண✏㞟 1P06
2016 ᖺ 3 ᭶ 14 ᪥㻌 ᪩✄⏣኱Ꮫඹྠ◊✲ศ㔝 : ຍᕤࣉࣟࢭࢫᏛศ㔝 − 54 −

ࣇ࢙࣒ࢺ⛊࣮ࣞࢨㄏ㉳ࢼࣀ࿘ᮇᵓ㐀ᙧᡂ࡟ࡼࡿ
㧗ᗘ⏕యᮦᩱ๰〇࡟㛵ࡍࡿ◊✲ᒸᒣ኱Ꮫ ኱Ꮫ㝔 ⮬↛⛉Ꮫ◊✲⛉⠛Ọᮾ࿃㸯㸬⫼ᬒ࠾ࡼࡧ┠ⓗࢳࢱࣥ㸦Ti㸧ࡸ Ti ྜ㔠ࡣ㧗⪏㣗ᛶཬࡧᶵᲔⓗᛶ㉁࡟ඃࢀࡿᛶ㉁ࢆ᭷ࡋ࡚࠾ࡾ㸪࢖ࣥࣉࣛࣥࢺᮦᩱ࡜ࡋ࡚᭱ࡶ౑
⏝ࡉࢀࡿ㔠ᒓ〇⏕యᮦᩱࡢ୍✀࡛࠶ࡿ㸬ࡋ࠿ࡋ㸪Ti ࡑࡢࡶࡢࡣ⏕య୙άᛶ࡞Ⅼࡸ㦵ᙧᡂ᫬࡟᫬㛫ࡀ࠿࠿ࡿ࡞࡝ၥ
㢟Ⅼࢆ᭷ࡋ࡚࠸ࡿ㸬ࡇࡢࡇ࡜࠿ࡽ㸪Ti ࡟ᑐࡋ࡚᪂ᶵ⬟ࢆ௜୚ࡍࡿᢏ⾡ࡢ☜❧ࡀᚲせ࡛࠶ࡿ㸬⏕యᮦᩱ࡬ࡢ᪂ᶵ⬟௜ຍࡢ᭷ຠ࡞ᡭἲࡢ୍ࡘ࡟㸪ᮦᩱ⾲㠃࡬࿘ᮇࡸ῝ࡉࡀᩘ 100 nm ࢆ᭷ࡍࡿࢼࣀ࿘ᮇᵓ㐀ࢆᙧᡂࡋ㸪⣽⬊ࢆࢼࣀ࿘ᮇ
ᵓ㐀ࡢ⁁᪉ྥ࡟ἢࡗ࡚ఙᒎࡉࡏࡿ⣽⬊ఙᒎไᚚࡀ࠶ࡿ㸬Ti ᮦᩱୖ࡬ࡢࢼࣀ࿘ᮇᵓ㐀ࡢᙧᡂ࡟ࡣ㉸▷ࣃࣝࢫ࣮ࣞࢨ
ࡀ᭷ຠ࡞ࢶ࣮ࣝࡢ୍✀࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬㉸▷ࣃࣝࢫ࣮ࣞࢨㄏ㉳ࢼࣀ࿘ᮇᵓ㐀ࡣ࣮ࣞࢨࡢ㞟ගࢫ࣏ࢵࢺෆ㒊࡟⮬ᕫ⤌⧊ⓗ࡟ᙧᡂࡉࢀ㸪㔠ᒓࡸ༙ᑟయ⾲㠃࡟ᙧᡂࡍࡿࡇ࡜ࡀ࡛ࡁࡿ㸬ࡲࡓ㸪⁁ࡢ᪉ྥࡣ࣮ࣞࢨࡢ೫ග࡟౫Ꮡࡍࡿ㸬ࡇࢀࡲ࡛ࡢ◊✲࡛㸪⣧ Ti ᇶᯈ⾲㠃࡟ᑐࡋ࡚㉸▷ࣃࣝࢫ࣮ࣞࢨࢆ↷ᑕࡍࡿࡇ࡜࡛㸪࣮ࣞࢨࡢ೫ග࡟ᑐࡋ࡚ᆶ┤࡞᪉ྥ࡬⁁ࢆ᭷ࡍࡿࢼࣀ࿘ᮇᵓ㐀ࡀᙧᡂྍ⬟࡛࠶ࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ 1)㸬㦵ⱆ⣽⬊ࢆ⏝࠸࡚⣽⬊ヨ㦂ࢆ⾜ࡗࡓ⤖ᯝ㸪ᙧᡂࡋࡓࢼࣀ࿘ᮇᵓ㐀ࡢ⁁࡟ἢࡗ࡚⣽⬊ࡀఙᒎࡍࡿ⟠ᡤࡀᏑᅾࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪඲࡚ࡢ⣽⬊ࡀ⁁࡟ἢࡗ࡚ఙᒎࡋ࡚࠾ࡽࡎ㸪⣽⬊ఙᒎไᚚ࡟ຠᯝⓗ࡞ࢼࣀ࿘ᮇᵓ㐀ࡢ⾲㠃ᙧ≧࡟ࡘ࠸࡚ࡣᮍࡔ᫂ࡽ࠿࡟࡞ࡗ࡚
࠸࡞࠸㸬ࡇࡇ࡛㸪㉸▷ࣃࣝࢫ࣮ࣞࢨㄏ㉳ࢼࣀ࿘ᮇᵓ㐀ࡢ⾲㠃ᙧ≧ࡣ࣮ࣞࢨ↷ᑕࣃ࣓࣮ࣛࢱ࡛࠶ࡿࣃࣝࢫᖜࡸ࣮ࣞࢨ
Ἴ㛗࡞࡝࡟ࡼࡾไᚚ࡛ࡁࡿྍ⬟ᛶࡀ࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪⣧ Ti ⾲㠃࡟㉸▷ࣃࣝࢫ࣮ࣞࢨࢆ㞟ග↷ᑕࡋ㸪࣮ࣞࢨ↷ᑕࣃ࣓࣮ࣛࢱࡀࢼࣀ࿘ᮇᵓ㐀᫬ࡢ⾲㠃ᙧ≧࡟୚࠼ࡿᙳ㡪࡟ࡘ࠸࡚ᐇ㦂ⓗ࡟ㄪ࡭ࡓ㸬ࡲࡓ㸪ᙧᡂࡋࡓࢼࣀ࿘ᮇᵓ㐀ࡀ⣽⬊ఙᒎ࡟୚࠼ࡿᙳ㡪࡟ࡘ࠸࡚㦵ⱆ⣽⬊ࢆ⏝࠸࡚ホ౯ࡋࡓ㸬㸰㸬ᐇ㦂᪉ἲ
ᮏᐇ㦂࡛⏝࠸ࡓ࣮ࣞࢨ↷ᑕࢭࢵࢺ࢔ࢵࣉࡢᴫ␎ᅗࢆᅗ
ᅗ 1(a)࡟♧ࡍ㸬ࢼࣀ࿘ᮇᵓ㐀ᙧᡂࡢࡓࡵ㸪ᇶᮏἼࡢ୰ᚰἼ㛗࠾ࡼࡧ⧞ࡾ㏉ࡋ࿘Ἴᩘࡀࡑࢀࡒࢀ 790 nm ࠾ࡼࡧ 1 kHz ࡛࠶ࡿ㉸▷ࣃࣝࢫ࣮ࣞࢨࢆ⏝࠸ࡓ㸬࣮ࣞࢨගࡣࣞࣥࢬࢆ⏝࠸࡚ Ti ᇶᯈ⾲㠃࡬㞟ග↷ᑕࡋ㸪ᅗ 1 (b)࡟♧ࡍࡼ࠺࡟ XY ࢫࢸ࣮ࢪ࡟ࡼࡗ࡚㞟ගࢫ࣏ࢵࢺࢆ⣧ Ti ᇶᯈ⾲㠃ୖ࡛㉮ᰝࡉࡏ࡞ࡀࡽ↷ᑕࢆ⾜ࡗࡓ㸬ࡇࡢ㝿㸪࣮ࣞࢨ↷ᑕࣃ࣓࣮ࣛࢱ࡜ࡋ࡚࣮ࣞࢨἼ㛗㸪࣮ࣞࢨࣇ࣮࢚ࣝࣥࢫ࠾ࡼࡧ㉮ᰝ㏿ᗘ㸦ࢫ࣏ࢵࢺᚄ࠶ࡓࡾࡢ↷ᑕᅇᩘ㸧ࢆ୍ᐃ࡜ࡋ㸪ࣃࣝࢫᖜࡢࡳࢆ 0.2 ps ࠿ࡽ 5.0 ps ࡲ࡛ኚ໬ࡉࡏࡓ㸬࣮ࣞࢨ↷ᑕᚋࡢTi ᇶᯈ⾲㠃ࡣࣉ࣮ࣟࣈ㢧ᚤ㙾࡟ࡼࡗ࡚⾲㠃ᙧ≧ࣉࣟࣇ࢓࢖ࣝࢆ ᐃࡋ㸪ࢼࣀ࿘ᮇᵓ㐀ࡢ࿘ᮇࡸ῝ࡉࢆホ౯ࡋࡓ㸬⣽⬊ヨ㦂࡟ࡼࡾྛ⾲㠃ᙧ≧࡟࠾ࡅࡿ⣽⬊ఙᒎࡢᵝᏊࢆホ౯ࡍࡿࡓࡵ㸪XY ࢫࢸ࣮ࢪࢆ⏝࠸࡚⣙ 10×3 mm ࡢ⠊ᅖ࡟ࢼࣀ࿘ᮇᵓ㐀ᙧᡂ㡿ᇦࡢసᡂࢆヨࡳࡓ㸬సᡂࡋࡓヨᩱୖ࡟ࣄࢺ㦵ⱆ⣽⬊
㸦MG-63㸧ࢆ᧛✀ࡋࡓࢩ࣮ࣕࣞࢆ

ᗘ

37Υ㸪5%CO2 ⃰ᗘࡢ࢖࣮ࣥ࢟ࣗ࣋ࢱ࣮ෆ
࡟ධࢀ㸪ึᮇࡢ⣽⬊ఙᒎࡢᵝᏊࢆほᐹࡍࡿࡓࡵ࡟㸪⣽⬊ᇵ㣴ࢆ 3 ᫬㛫⾜ࡗࡓ㸬ࡑࡢᚋ㸪⤌⧊ᅛᐃࢆ⾜࠸㸪ච␿ᰁⰍࢆ⾜࠺ࡇ࡜࡛⣽⬊ࡢ࢔ࢡࢳࣥࢆ㉥Ⰽ㸪᰾ࢆ㟷Ⰽ࡜࡞ࡿࡼ࠺࡟ᰁⰍࡋ㸪⣽⬊ఙᒎࡢᵝᏊࢆᅗ 1 (a)࣮ࣞࢨ↷ᑕࢭࢵࢺ࢔ࢵࣉࡢᴫ␎ᅗ㸪(b)࣮ࣞࢨ㉮ᰝ᪉ྥ⺯ග㢧ᚤ㙾࡛ほᐹ࡛ࡁࡿࡼ࠺࡟ࡋࡓ㸬− 55 −

㸱㸬ᐇ㦂⤖ᯝ㸱㸬㸯㸬ࣃࣝࢫᖜ࡟ࡼࡿࢼࣀ࿘ᮇᵓ㐀ࡢᙧ≧ኚ໬㉸▷ࣃࣝࢫ࣮ࣞࢨࡢࣃࣝࢫᖜࢆ 5.0 ps ࠿ࡽ 0.2 ps ࡬࡜ࡑࢀࡒ
ࢀኚ᭦ࡋ࡚࣮ࣞࢨ↷ᑕࢆ⾜ࡗࡓᚋࡢ Ti ᇶᯈ⾲㠃࡟ᑐࡋ࡚㸪ࣉ࣮ࣟࣈ㢧ᚤ㙾ࢆ⏝࠸࡚ ᐃࡋࡓ⾲㠃ᙧ≧ࣉࣟࣇ࢓࢖ࣝ⏬ീࢆᅗ 2(a)࠾ࡼࡧ(b)࡟♧ࡍ㸬ࡲࡓ㸪ẚ㍑࡜ࡋ࡚࣮ࣞࢨࢆ↷ᑕࡋ࡚࠸࡞࠸ Ti ᇶᯈ⾲㠃ࡢ⾲㠃ᙧ≧ࣉࣟࣇ࢓࢖ࣝ⏬ീࢆᅗ
ᅗ 2 (c)࡟♧ࡍ㸬ᅗ 2 ࠿ࡽ㸪࣮ࣞࢨ↷ᑕ๓ࡣพฝࡢᑡ࡞࠸㙾㠃࡛࠶ࡿࡢ࡟
ᑐࡋ㸪࣮ࣞࢨ↷ᑕᚋࡢ⾲㠃࡛ࡣ࣮ࣞࢨࡢ೫ග㹃࡟ᑐࡋ࡚ᆶ┤࡞᪉ྥ࡟⁁ࢆ᭷ࡍࡿࢼࣀ࿘ᮇᵓ㐀ࡀࡑࢀࡒࢀࡢࣃࣝࢫᖜ࡛ᙧ
ᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡲࡓ㸪ࣃࣝࢫᖜࡢቑຍ࡟࡜ࡶ࡞
࠸࿘ᮇࡣࢃࡎ࠿࡟ῶᑡࡋ㸪῝ࡉࡣቑຍࡍࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡍ࡞ࢃࡕ㸪ࣃࣝࢫᖜࡀ▷࠸ሙྜࡣฝ㒊࡜พ㒊ࡢ㧗పᕪࡀᑠࡉ࡞
ࢼࣀ࿘ᮇᵓ㐀࡜࡞ࡾ㸪ࣃࣝࢫᖜࡀ㛗࠸ሙྜࡣฝ㒊࡜พ㒊ࡢ㧗పᕪࡀ኱ࡁ࡞ࢼࣀ࿘ᮇᵓ㐀ࡀᚓࡽࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬ࡉࡽ࡟㸪ᚓࡽࢀࡓ࿘ᮇ࡜῝ࡉ࠿ࡽ㸪῝ࡉࢆ࿘ᮇ࡛㝖ࡍࡿࡇ࡜࡛ࢼࣀ࿘ᮇᵓ㐀ࡢ࢔ࢫ࣌ࢡࢺẚࢆ⟬ฟࡋࡓ⤖ᯝ㸪ࣃࣝࢫᖜࡢ
ቑຍ࡟క࠸㸪࢔ࢫ࣌ࢡࢺẚࡣቑຍࡍࡿഴྥࡀᚓࡽࢀࡓ㸬௨ୖ

ᅗ 2 Ti ᇶᯈ⾲㠃ࡢ⾲㠃ᙧ≧ࣉࣟࣇ࢓࢖
ࣝ㸸(a)ࣃࣝࢫᖜ 5.0 ps ࠾ࡼࡧ(b)0.2 ps ࡛࣮ࣞࢨ↷ᑕᚋ㸪(c)࣮ࣞࢨ↷ᑕ↓ࡋࡼࡾ㸪࣮ࣞࢨ↷ᑕࣃ࣓࣮ࣛࢱࡢࣃࣝࢫᖜ࡟ࡼࡗ࡚ࢼࣀ࿘ᮇᵓ
㐀ࡢ⾲㠃ᙧ≧ࢆไᚚ࡛ࡁࡿྍ⬟ᛶࡀ♧ࡉࢀࡓ㸬ᮏ⌮⏤࡟ࡘ࠸࡚ࡣゎ᫂ࡉࢀ࡚࠸࡞࠸ࡀࣃࣝࢫᖜࡢኚ໬࡟ࡼࡿ࣮ࣞࢨ
ᙉᗘࡢᕪ␗ࡀᙳ㡪ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬㸱㸬㸰㸬ࢼࣀ࿘ᮇᵓ㐀ୖࡢ⣽⬊ఙᒎ๓⠇࡛ᚓࡽࢀࡓ⤖ᯝࢆඖ࡟㸪ࣃࣝࢫᖜ 5.0 ps ࡛ࢼࣀ࿘ᮇᵓ㐀ࢆᙧᡂࡋࡓ Ti ᇶᯈ࠾ࡼࡧ㸪࣮ࣞࢨ↷ᑕ↓ࡋࡢ Ti ᇶᯈ࡟ᑐࡋ࡚
ᅗ 3 ࡟♧ࡍ㸬ࢼࣀ⣽⬊ヨ㦂ࢆ⾜ࡗࡓᚋࡢ⺯ග㢧ᚤ㙾ほᐹീࢆᅗ࿘ᮇᵓ㐀ࢆᙧᡂࡋ࡚࠸࡞࠸ Ti ᇶᯈୖ࡛ࡣ㸪⣽⬊ࡣࣛࣥࢲ࣒࡞
᪉ྥ࡟ఙᒎࡋ࡚࠸ࡿ㸬୍᪉࡛㸪ࢼࣀ࿘ᮇᵓ㐀ࢆᙧᡂࡍࡿࡇ࡜
࡛ࢼࣀ࿘ᮇᵓ㐀ࡢ⁁࡟ἢࡗ࡚⣽⬊ࡀఙᒎࡋ࡚࠸ࡿ⟠ᡤࡀᏑᅾࡋ࡚࠸ࡿ㸬ᮏ⤖ᯝࡣ㸪ࣃࣝࢫᖜ 0.2 ps ࡛↷ᑕࡋࡓ㝿࡟ᚓࡽࢀࡿ
ࢼࣀ࿘ᮇᵓ㐀ୖ࡟࠾࠸࡚ࡶほᐹࡉࢀࡓ㸬௒ᚋ㸪⣽⬊ఙᒎไᚚ࡟ᑐࡋ࡚᭷ຠ࡞⾲㠃ᙧ≧࡟ࡘ࠸࡚ㄪᰝࡍࡿணᐃ࡛࠶ࡿ㸬ᅗ 3 Ti ᇶᯈ⾲㠃࡟࠾ࡅࡿ⣽⬊ヨ㦂ᚋࡢ⺯ග㢧ᚤ㙾ほᐹീ.

㸲㸬ࡲ࡜ࡵ
ᮏ◊✲࡛ࡣ㸪⏕యᮦᩱ࡛࠶ࡿ Ti 〇㔠ᒓᮦᩱୖ࡟࠾ࡅࡿ㧗ຠ⋡࡞⣽⬊ఙᒎไᚚࢆ┠ᣦࡋ㸪㉸▷ࣃࣝࢫ࣮ࣞࢨࡢ࣮ࣞ
ࢨ↷ᑕࣃ࣓࣮ࣛࢱ࡛࠶ࡿࣃࣝࢫᖜ࡟ࡼࡗ࡚⣧ Ti ࡢ⾲㠃ᙧ≧ไᚚ࡟ࡘ࠸᳨࡚ウࡋࡓ㸬⣧ Ti ୖ࡟ᙧᡂࡉࢀࡿࢼࣀ࿘ᮇ
ᵓ㐀ࡣ㸪࣮ࣞࢨࡢࣃࣝࢫᖜ࡟ࡼࡗ࡚࿘ᮇ࠾ࡼࡧ῝ࡉࡀኚ໬ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬ㅰ ㎡ᮏ◊✲ࡢ୍㒊ࡣ JSPS ⛉◊㈝ 15K18245 ࠾ࡼࡧබ┈㈈ᅋἲே ᒸᒣᕤᏛ᣺⯆఍ࡢຓᡂࢆཷࡅࡓࡶࡢ࡛ࡍ㸬ཧ⪃ᩥ⊩1) T. Shinonaga, M. Tsukamoto, T. Kawa, P. Chen, A. Nagai and T. Hanawa, Formation of periodic nanostructures using afemtosecond laser to control cell spreading on titanium, Appl. Phys. B: Lasers. and Opt. 119, (2015) 493̽496.
㸦ඹྠ◊✲ศ㔝:ຍᕤࣉࣟࢭࢫᏛศ㔝㸧− 56 −

䝺䞊䝄䝤䝺䞊䝆䞁䜾䛻䜘䜛␗✀ᮦᩱ᥋ྜ䛻㛵䛩䜛◊✲㮵ඣᓥ┴ᕤᴗᢏ⾡䝉䞁䝍䞊㻌 ⏕⏘ᢏ⾡㒊℩▱㻌 ၨஂ
1.

┠ⓗ䜝䛖௜ἲ䜢䛿䛨䜑䛸䛩䜛␗✀ᮦᩱ᥋ྜ䛿䠈㒊ᮦ䛾㧗௜ຍ౯್໬䛻᭷ຠ䛺ᡭἲ䛾୍䛴䛷䛒䜛 1, 2)䚹䛧䛛䛧䛺䛜䜙䠈䛣䜜䜙␗✀ᮦᩱ᥋ྜ䛻䛿䠈᥋ྜ᫬䛾ຍ⇕䛻䜘䜛᥋ྜ⏺㠃㏆ഐ䛷䛾ᮦ㉁ຎ໬䜔䠈⇕ᛂຊ䠉䜂䛪䜏䛾Ⓨ⏕䛻㉳ᅉ䛩䜛᥋ྜḞ㝗䛜⏕䛨䜔䛩䛔䛺䛹䛾ၥ㢟Ⅼ䛜䛒䜛䚹䝺䞊䝄䝤䝺䞊䝆䞁䜾ἲ䛿ᒁᡤⓗ䛛䛴▷᫬㛫䛷䛾ຍ⇕䛜ྍ⬟䛷䛒䜚䠈ẕᮦ䛾ᮦ㉁ຎ໬ᢚไ䛻ඃ䜜䛶䛔䜛䛯䜑䠈๓グ䛾ၥ㢟Ⅼ䜢ゎỴ䛩䜛䛣䛸䛜ྍ⬟䛸䛺䜛 3)䚹
୍᪉䠈䝉䝷䝭䝑䜽䝇䛸㔠ᒓ䛾άᛶ䜝䛖௜䛻䛚䛔䛶䠈᥋ྜ⎔ቃ䛾㓟⣲ศᅽ䛿 Ti 䜢䛿䛨䜑䛸䛩䜛άᛶᡂศ䛾᥋ྜ≉ᛶ䛻኱䛝䛟ᙳ㡪䛩䜛䚹䛭䛣䛷ᮏ◊✲䛷䛿䠈ᒁᡤⓗ䛛䛴▷᫬㛫䛷䛾ຍ⇕䛜ྍ⬟䛷䛒䜚䠈ẕᮦ䛾ᮦ㉁ຎ໬ᢚไ䛻ඃ䜜䛯䝺䞊䝄䝤䝺䞊䝆䞁䜾ἲ䛻䛚䛔䛶ṧ␃㓟⣲⃰ᗘ䜢ኚ᭦䛧䛯ᐇ㦂䜢⾜䛔䠈᥋ྜ≉ᛶ䜈䛾ᙳ㡪䜢᳨ウ䛧䛯䚹
2.

ᐇ㦂᪉ἲ

౪ヨᮦᩱ䛻䛿䠈㉸◳ྜ㔠䛸䛧䛶 ISO ౑⏝ศ㢮 K10 ┦ᙜᮦ(93䡚95mass%WC-4䡚5mass%Co)䜢䠈❅໬䝩䜴⣲䛸䛧䛶㧗⣧ᗘ h-BN(┦ᑐᐦᗘ 82.5%䠈⣧ᗘ 99mass%௨ୖ䠈5mm㽢5mm㽢3.5mm t)䜢౑⏝䛧䛯䚹䜝䛖ᮦ䛿䠈Table 1 䛻♧䛩⤌ᡂ䛾 Ag-Cu-Ti ⣔άᛶ㔠ᒓ䜝䛖ᮦ䜢⏝䛔䛯䚹ᇶᮦ䛾㉸◳ྜ㔠䛸❅໬䝩䜴⣲䛾㛫䛻䜝䛖ᮦ䜢ᣳ䜏䠈5N 䜾䝺䞊䝗䛾 Ar㞺ᅖẼ୰䛻䛶 Table 2 䛾᮲௳䛻䛶䜝䛖௜䜢⾜䛔䠈ヨᩱ䜢స〇䛧䛯䚹ヨᩱస〇᫬䛾㞺ᅖẼ䛸䛧䛶䛿䠈䝻䞊䝍䝸䞊䝫䞁䝥䜢⏝䛔䛶 10-1Pa 䜸䞊䝎䞊䜎䛷┿✵᤼Ẽ䜢⾜䛳䛯ᚋ䛻 Ar 䜺䝇䜢䝣䝻䞊䛥䛫䛶䝺䞊䝄䝤䝺䞊䝆䞁䜾䜢⾜䛳䛯ሙྜ䛸䠈┿✵᤼Ẽ䜢⾜䜟䛪䠈Ar 䜺䝇䜢 1~10L/min 䛷䝣䝻䞊䛥䛫䛯ሙྜ䛾ィ 7 ᮲௳䜢⏝䛔䛯䚹ヨᩱస〇䛾ᶍᘧᅗ䜢 Fig. 1 䛻♧䛩䚹䛺䛚䠈䝏䝱䞁䝞䞊䛾ෆᐜ✚䛿 145ml 䛷䛒䜛䚹㓟⣲⃰ᗘ䛻䛴䛔䛶䛿䠈䝏䝱䞁䝞䞊䛛䜙䛾ὶฟ䜺䝇䜢ప⃰ᗘ䝆䝹䝁䝙䜰ᘧ㓟⣲⃰ᗘィ䛻䜘䜚 ᐃ䛧䛯䚹స〇䛧䛯ヨᩱ䛻䛴䛔䛶䠈እほほᐹ䛺䜙䜃䛻 EPMA 䛻䜘䜛䜝䛖ᮦ᩿㠃䛾ඖ⣲ศᯒ䜢⾜䛳䛯䚹
Table 1 Chemical composition of㻌3.

ᐇ㦂⤖ᯝཬ䜃⪃ᐹAg-Cu-Ti alloy braze.

Fig. 2 䛻ຍ⇕๓䛾䝏䝱䞁䝞䞊ෆ㓟⣲⃰ᗘ ᐃ⤖ᯝ䜢♧䛩䚹䛺䛚䠈㓟⣲⃰ᗘ䛾 ᐃ䛿䠈䝏䝱䞁䝞䞊ෆ䛾ᅽຊ䛜኱Ẽᅽ䛻฿㐩䛧䛯᫬Ⅼ䛛䜙㛤ጞ䛧䛯䚹䛣䜜䜎䛷䛾◊✲ 3, 4)䛷䛾ຍ⇕䜢㛤ጞ䛧䛯 180 ⛊௜㏆䛷䛾㓟⣲⃰ᗘElements 䠄mass %䠅
Ag
Cu
Ti
70.26
bal.
1.68
Table 2 Laser brazing condition.

Glass fiber㻌
Laser beam
5°㻌
Beam head㻌
Laser radiationarea㻌
Hexagonal
Boron Nitride㻌
Metal substrate plateO2 analyzer Ar㻌
Transparent
quartz glass
plate㻌
Ag-Cu-Tibraze metal

Ar
Thermocouple㻌
Specimen
stage

Bulb㻌

Chamber㻌Pulsed YAG Average Output (kW)

0.134

Pulsed YAG wave length (nm)1064

CW LD Output (kW)0.02

CW LD wave length (nm)808

Pulse frequency (Hz)
(1st run)(2nd run)
Scanning speed

100
0.6
1.0

(mm/s)

Fig. 1 Schematic diagram of laser brazing.

− 57 −(3rd run)th(4 run)1.0
1.0䛿䠈Ar 䜺䝇ὶ㔞 1L/min 䛾ሙྜ䠈33ppm ௨ୖ䛸䛺䛳䛯䚹Ar䜺䝇ὶ㔞䜢 5L/min 䜎䛷ቑຍ䛥䛫䛯᮲௳䛷䛿 10ppm 䛸䛺䜚䠈䛥䜙䛻 10L/min 䛸䛧䛯ሙྜ䛿 3.8ppm 䜎䛷పῶ䛧䠈┿✵᤼Ẽᚋ Ar 䜺䝇ὶ㔞 5L/min 䛸䛧䛯᮲௳䛷䛿 1.8ppm 䛻㏆䛔㓟⣲⃰ᗘ䛸䛺䛳䛯䚹
Fig. 3 䛻䠈᥋ྜヨᩱ䛾እほ෗┿䜢♧䛩䚹Ar 䜺䝇ὶ㔞Pre-flowtime before
laser brazing

1L/min 䛷䛿䜝䛖ᮦ䛜㓟໬䛧䛶䛔䜛䛾䛻ᑐ䛧䠈Ar 䜺䝇ὶ㔞
5L/min ௨ୖ䛷䛿䜝䛖ᮦ䛾㓟໬䛜ぢ䜙䜜䛺䛛䛳䛯䚹䛣䜜䛿┿✵᤼Ẽᚋ Ar 䜺䝇ὶ㔞 5L/min 䛸䛧䛯ሙྜ䛸ྠᵝ䛷䛒䜛3, 4)䚹䛧䛯䛜䛳䛶䠈㓟⣲⃰ᗘ 10ppm 䛸 33ppm 䛾㛫䛻䜝䛖ᮦ

Fig. 2 Oxygen content in the vacuum chamber
during the pre-flow of Ar.

㓟໬䛾㜈್䛜Ꮡᅾ䛩䜛䜒䛾䛸᥎ᐹ䛥䜜䜛䚹䛣䛾㜈್䛿䠈ྠ䛨䛟㓟໬䛧䜔䛩䛔 Al ྜ㔠䛾䝜䝁䝻䝑䜽䜝䛖௜䛾ᐇ
5)

᪋᮲௳ 䛸䜘䛔୍⮴䜢♧䛧䛶䛔䜛䚹a) 1 L/min
without pre-evacuationb) 5 L/min
without pre-evacuation

h–BN

h–BN

c) 10 L/min
without pre-evacuation

Fig. 4 䛻 Ar 䜺䝇ὶ㔞 10L/min䠈䜺䝇䝣䝻䞊ᚋ
180 ⛊䛾᮲௳䛻䛶స〇䛧䛯ヨᩱ䛾 EPMA ᩿㠃

h–BNほᐹ⤖ᯝ䜢♧䛩䚹䝣䜱䝺䝑䝖⾲㠃䛾䜝䛖ᮦ㒊ศ䛻䠈
WC–Co

䜝䛖ᮦ䛾㓟໬䛜ぢ䜙䜜䛺䛛䛳䛯䚹䛣䛾䛣䛸䛛䜙䠈䜝䛖ᮦ୰䛾 Ti ྵ᭷⋡䛜 1.68mass%䛾ሙྜ䠈䝺䞊
䛷䜒䠈Ar 䜺䝇౪⤥䛾䜏䛷᥋ྜ᮲௳䜢‶䛯䛩㓟

Oxidation ofbraze alloy⣲⃰ᗘపῶ䛜ྍ⬟䛸䛺䜛䛣䛸䛜᫂䜙䛛䛸䛺䛳䛯䚹h–BN䝺䞊䝆䞁䜾᫬䛾ṧ␃㓟⣲⃰ᗘ䜢ኚ᭦䛧䛯ᐇ㦂䜢⾜䛔䠈᥋ྜᛶ䜈䛾ᙳ㡪䛻䛴䛔䛶᳨ウ䛧䛯䚹㻭r 䜺䝇䝣䝻䞊ᚋ 180 ⛊௜㏆䛷䛾㓟⣲⃰ᗘ䜢ẚ㍑䛩䜛

Braze alloy lumpĻNo oxidation

WC–Co

⤖ㄽ

භ᪉ᬗ❅໬䝩䜴⣲䛸㉸◳ྜ㔠䛾␗ᮦ䝺䞊䝄䝤2mmd) 5 L/min
with pre-evacuation䝄䝤䝺䞊䝆䞁䜾᫬䛾┿✵᤼Ẽ䜢┬␎䛧䛯᮲௳

4.

WC–Co

WC–Co

Fig. 3 Appearances of laser brazed joints at various Ar gas
flow conditions after 3 minutes of Ar pre-flow.
a) SEM Image
h–BN

resin

Ag–Cu–Tibraze alloy

100ȝm

b) O

c) Ag

e) N

f) Cu

䛸䠈33ppm ௨ୖ䛷䛿䜝䛖ᮦ䛾⾲㠃㓟໬䛜㐍⾜䛧䠈10ppm ௨ୗ䛷䛿䜝䛖ᮦ䛾⾲㠃㓟໬䛜ᢚไ䛥䜜
䛯䚹
d) Ti

5.

ཧ⪃ᩥ⊩

1) M. G. Nicholas, et. al., Journal of Material
Science, 25 (1990) 2679-2689
2) S. D. Peteves, Ceramics International, 22(1996) 527-533

Fig. 4 Map analysis of h–BN / Ag–Cu–Ti braze alloy interface(at the edge) after 3 minutes of 10 L/min Ar pre-flow
without pre-evacuation.

3) Y. Sechi, et. al., Materials & Design, 31 (2010) 2071-2077
4) Y. Sechi, et. al., Journal of Physics Conference Series, 379 (2012) 012048
5) M. Komura, et. al., The Bulletin of Institute of Technologists, 3 (2012) 31-37(ඹྠ◊✲ศ㔝䠖ຍᕤ䝥䝻䝉䝇Ꮫศ㔝)− 58 −

㟷Ⰽ༙ᑟయ࣮ࣞࢨ࣮ࢆ⏝࠸ࡓ㖡⓶⭷ࡢᙧᡂ࡟㛵ࡍࡿ◊✲㏆␥኱Ꮫ኱Ꮫ㝔 ⥲ྜ⌮ᕤᏛ◊✲⛉௝▼ ṇ๎
1.

┠ⓗ㟷Ⰽ༙ᑟయ࣮ࣞࢨ࣮ࢆ⏝࠸࡚ SUS ᇶᯈୖ࡟⦓ᐦ࡛ᇶᯈ࡬⣧㖡⓶⭷ࢆᙧᡂࡋࡓ㸬୍⯡࡟㸪㖡⓶⭷ࢆᙧᡂࡍࡿᢏ⾡࡟ࡣ㸪ࢥ࣮ࣝࢻࢫࣉ࣮ࣞἲࡸ↓㟁ゎ࣓ࢵ࢟ἲ࡞࡝ࡀ⏝࠸ࡽࢀ࡚࠸ࡿࡀ㸪ࡇࢀࡽࡢᡭἲࡣ㸪ᐦ╔ᙉᗘࡀᙅࡃ㸪⦓ᐦ࡞⓶⭷ࡢᙧᡂࡀ㞴ࡋ࠸㸬ࡑࡇ࡛㸪ᐦ╔ᙉᗘࡀ㧗ࡃ⦓ᐦ࡞⓶⭷ࡢᙧᡂࡀྍ⬟࡞࣮ࣞࢨ࣮ࢡࣛࢵࢹ࢕ࣥࢢἲ࡟╔┠ࡋࡓ㸬୍⯡䛻䝺䞊䝄䞊䜽䝷䝑䝕䜱䞁䜾䛻⏝䛔䜙䜜䛶䛔䜛㏆㉥እ㡿ᇦ䛾䝺䞊䝄䞊䛿䠈㖡䜈䛾྾཰⋡䛜ప䛟䠈⓶⭷䜢ᙧᡂ䛩䜛䛯䜑䛻䛿኱ฟຊ䛾䝺䞊䝄䞊䛜ᚲせ䛷䛒䛳䛯䠊䛧䛛䛧䠈኱ฟຊ䛾䝺䞊䝄䞊䜢⏝䛔䛶䜽䝷䝑䝕䜱䞁䜾䜢⾜䛖䛸䠈ᇶᯈ䜈䛾⁐䛡㎸䜏䛾ᣑ኱䜔䠈⇕ṍ䜏䛺䛹䛜⏕䛨䠈ⷧᯈ䛺䛹䜈䛾ᙧᡂ䛿㞴䛧䛛䛳䛯(1)䠊䛭䛣䛷䠈௒ᅇ䛿 3mm ཌ䛾 SUS304 ᇶᯈୖ䛻 100W ⣭䛾㟷Ⰽ༙ᑟయ䝺䞊䝄䞊䜢⏝䛔䛶⣧㖡⓶⭷䛾ᙧᡂ䜢ヨ䜏䛯䠊䛭䛾⤖ᯝ䠈ᙧᡂ䛥䜜䜛⭷ཌཬ䜃⭷ᖜ䛿䝺䞊䝄䞊䛾ᤲᘬ㏿ᗘ䛻౫Ꮡ䛩䜛䛣䛸䛜ศ䛛䛳䛯䛾䛷ሗ࿌䛩䜛䠊
2. ᐇ㦂᪉ἲ 㟷Ⰽ༙ᑟయ࣮ࣞࢨ࣮ࢆ⏝࠸ࡓ࣮ࣞࢨ࣮ࢡࣛࢵࢹ࢕ࣥࢢࡢᐇ㦂ᴫ␎ᅗࢆᅗ 1 ࡟♧ࡍ㸬XY ࢫࢸ࣮ࢪୖ࡟ SUS304 ᇶᯈࢆタ⨨ࡍࡿ㸬6 ྎࡢ㟷Ⰽ༙ᑟయ࣮ࣞࢨࣔࢪ࣮ࣗࣝ࠿ࡽఏ㏦ࣇ࢓࢖ࣂ࣮ࢆ⏝࠸࡚ຍᕤ࣊ࢵࢻ࡬࣮ࣞࢨ࣮ගࢆఏ㏦ࡋ㸪ຍᕤⅬ࡟࠾࠸࡚ 6 ᮏࡢ࣮ࣞࢨ࣮ࢆ 400ʅmʔ ࡟㔜␚ࡉࡏࡿ㸬ྠ᫬࡟⢏ᚄ 30ʅm ࡢ⣧㖡⢊ᮎࢆ㟢ග㒊࡟⢊ᮎ౪⤥㔞 11mg/s ࡛౪⤥ࡋ㸪࣮ࣞࢨ࣮ࡢᤲᘬ㏿ᗘࢆ 2㹼9mm/s ࡜ኚ໬ࡉࡏࡓ㸬࣮ࣞࢨ࣮ࡣ㐃⥆Ⓨ᣺ࡢ༙ᑟయ࣮ࣞࢨ࣮࡛㸪Ἴ㛗ࡣ 445nm㸪࣮ࣞࢨ࣮ฟຊࡣຍ
ᕤⅬ࡛ 93W ࡜ࡋࡓ㸬
3. ᐇ㦂⤖ᯝ ᙧᡂࡋࡓ⓶⭷ࡢ⭷ཌࢆ ᐃࡍࡿࡓࡵ࡟㸪⓶⭷ࡢ᩿㠃ほᐹࢆ⾜ࡗࡓ㸬ᅗ㸰࡟ᤲᘬ㏿ᗘ࡟ᑐࡍࡿ⭷ཌ࡜⭷ᖜࡢ౫Ꮡᛶࢆ♧ࡍ㸬ࡑࡢ⤖ᯝ㸪⓶⭷ࡢཌࡉཬࡧᖜࡣ࣮ࣞࢨ࣮ࡢᤲᘬ㏿ᗘ࡟౫Ꮡࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ᤲᘬ㏿ᗘࡀ 2 mm/s ࡢ࡜ࡁ࡟ࡣ㸪⭷ཌࡀ
299 ʅm ࡜኱ࡁࡃ࡞ࡗࡓ㸬ࡇࡢヨᩱࡢࣅࢵ࣮࢝ࢫ◳ᗘࢆ ᐃࡋࡓ⤖ᯝ㸪↓㓟⣲㖡ࡢࣅࢵ࣮࢝ࢫ◳ᗘࡀ 50±5 HV ࡟ᑐࡋ࡚㖡⓶⭷ࡢ◳ᗘࡣ 62HV ࡜࡞ࡾ㸪ྠ➼ࡢ್ࢆᚓࡓ㸬4.

⤖ㄽ
100W ⣭䛾㟷Ⰽ༙ᑟయ䝺䞊䝄䞊䜢⏝䛔䛶 3mm ཌ䛾 SUS304 ᇶᯈୖ䛻⣧㖡⓶⭷䛾ᙧᡂ䜢ヨ䜏䛯䠊䛭䛾⤖ᯝ䠈ᙧᡂ䛥䜜䛯⭷ཌཬ䜃⭷ᖜ䛿䝺䞊䝄䞊䛾ᤲᘬ㏿ᗘ䛻౫Ꮡ䛩䜛䛣䛸䛜ศ䛛䛳䛯䠊

350
⓶⭷ࡢᖜ

⓶⭷ࡢᖜ [μm]

500

⓶⭷ࡢཌࡉ

250

400

200

300

150

200

100

100

50

0

0
1

ᅗ 1 ᐇ㦂ᴫ␎ᅗ
5.

300⓶⭷ࡢཌࡉ [μm]

600

3

5
7
ᤲᘬ㏿ᗘ [mm/s]

9ᅗ 2 ᤲᘬ㏿ᗘ࡟ᑐࡍࡿ⭷ཌ࡜⭷ᖜࡢ౫Ꮡᛶ

ཧ⪃ᩥ⊩(1) K, ASANO. and M, TSUKAMOTO. et al. : Copper layer formation produced with 100W blue direct diode laser
system, Proc. of ICALEO’16, (2016), Paper #P110.
(ඹྠ◊✲ศ㔝㸸ຍᕤࣉࣟࢭࢫᏛศ㔝)− 59 −

ࣇ࢓࢖ࣂ࣮࣮ࣞࢨ࣮ࢆ⏝࠸ࡓ⢊ᮎ⁐⼥࡟ࡼࡿ Ti ྜ㔠⓶⭷ᙧᡂ࡟㛵ࡍࡿ◊✲㏆␥኱Ꮫ⌮ᕤᏛ㒊୰㔝ேᚿࠊὠᒣ⨾✑ࠊす㈗ဢ
1. ┠ⓗ࣮ࣞࢨ࣮ࢆ⏝࠸ࡓ㑅ᢥⓗ㔠ᒓ⁐⼥ἲ(Selective laser
melting:SLM)ࡣ㸪࣮ࣞࢨ࣮ගࢆ⇕※࡟㸪㔠ᒓ⢊ᮎࡢ⁐⼥࣭จᅛࢆ⧞ࡾ㏉ࡋ࡚㐃⥆ⓗ࡟✚ࡳୖࡆ࡚❧యᙧ≧ࢆᙧᡂࡍࡿᡭἲ࡛࠶ࡿ 1)㸬୍⯡࡟ࠊ㔠ᒓ⢊ᮎ࡟࣮ࣞࢨ࣮
ගࢆ↷ᑕࡍࡿ࡜㸪㔠ᒓ⢊ᮎࡀ⁐⼥ࢆ㉳ࡇࡍ࡜ྠ᫬࡟㸪⢊ᮎࡀ㣕ᩓࡋ࡚ࢫࣃࢵࢱࡀⓎ⏕ࡍࡿ㸬ࡇࡢࢫࣃࢵࢱࡀ
࣮ࣞࢨ࣮ග㊰ୖ࡟㣕ᩓࡍࡿ࡜㸪࣮ࣞࢨ࣮ගࡀ㣕ᩓ⢏Ꮚ࡟྾཰ࡉࢀ࡚ࡋࡲ࠸㐀ᙧ㠃࡬ࡢᢞධ࢚ࢿࣝࢠ࣮ࡀ୙㊊ࡍࡿࡓࡵ㸪㐀ᙧ≀ࡢ⾲㠃⢒ࡉࡀ 20㹼30 ȝm ࡜㧗ࡃ࡞ࡿ࡞࡝Ḟ㝗ᙧᡂࡢཎᅉ࡜࡞ࡿ㸬ࡑࡢࡓࡵ㸪SLM ࣉࣟࢭࢫ࡛ࡣ㸪ࢫࣃࢵࢱࡢⓎ⏕ࢆᢚไࡍࡿᢏ⾡ࡀồࡵࡽࢀ࡚࠸
ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪6/0 ἲ࡟ࡼࡾ㧗⢭ᗘ࡞㐀ᙧࢆ┠ⓗ࡜ࡍࡿࡓࡵ࡟㛤Ⓨࡋࡓ┿✵ࢱ࢖ࣉࡢ 6/0 ⿦⨨ࢆ⏝࠸࡚㸪 Ti ྜ㔠⓶⭷ࡢ㐀ᙧࢆ⾜ࡗࡓ㸬ࡲࡓ㸪㐀ᙧࡋࡓࢧࣥࣉࣝࡢ⾲㠃⢒ࡉࡢ ᐃࢆ⾜ࡗࡓ⤖ᯝ㸪⾲㠃⢒ࡉࡣ࣮ࣞࢨ࣮ࡢࣁࢵࢳࣥࢢ㊥㞳࡟౫Ꮡࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ
࠿࡜࡞ࡗࡓࡢ࡛ሗ࿌ࡍࡿ㸬
2. ᐇ㦂᪉ἲ
Fig.1 ࡟ SLM ᐇ㦂⿦⨨ࡢᴫ␎ᅗࢆ♧ࡍ㸬ᮏ◊✲࡛ࡣ࢞ࢫ࢔ࢺ࣐࢖ࢬἲ࡛〇㐀ࡉࢀࡓ Ti-6Al-4V ⢊ᮎ㸦ᖹᆒ⢏ᚄ 10 ȝm㸧ࢆ⏝࠸ࡓ㸬Ti-6Al-4V ⢊ᮎࢆࣃ࢘ࢲ࣮ࣇ
࢕࣮ࢲ࣮࡟タ⨨ࡋ㸪ࢳࣕࣥࣂ࣮ෆࢆ 5×10-3 Pa ࡲ࡛ῶᅽࡋࡓ㸬 㐀ᙧࢫࢸ࣮ࢪ࡟ᇶᯈ࡜ࡋ࡚ SUS304(3 mm ཌ)ࢆタ⨨ࡋ㸪
Ti-6Al-4V ⢊ᮎࢆ100 ȝm ཌ࡟ᩜࡁ࡞ࡽࡋࡓ㸬ࡇࡢ≧ែ࡛࢞ࣝࣂࣀ࣑࣮ࣛࢆ௓ࡋ࡚㸪 ᩜࡁ࡞ࡽࡋࡓ
Ti-6Al-4V ⢊ᮎୖ࡟ࢩࣥࢢ࣮ࣝࣔࢻࣇ࢓࢖ࣂ࣮࣮ࣞࢨ
ࢆ↷ᑕࡋࡓ㸬࣮ࣞࢨ࣮ࡢฟຊࡣ 150 W㸪ࢫ࣏ࢵࢺᚄࡣ
1/e2 ࡛ 70 ȝm㸪㉮ᰝ㏿ᗘࡣ 10 mm/s ࡜ࡋ㸪࣮ࣞࢨ࣮㉮ᰝࣃࢱ࣮ࣥࡣ㸪ࣜࢽ࢔ࣛࢫࢱ࣮ࢫ࢟ࣕࣥ᪉ᘧࢆ⏝࠸࡚㸪
10 mm×10 mm×0.1 mm ࡢ Ti ྜ㔠⓶⭷ࢆ㐀ᙧࡋࡓ㸬ࣃ࣓࣮ࣛࢱ࣮࡜ࡋ࡚㸪ࣁࢵࢳࣥࢢ㊥㞳ࡣࠊࣜࢽ࢔ࣛࢫࢱ
࣮ࢫ࢟ࣕࣥࡢ㞄ࡾྜ࠺࣮ࣞࢨ࣮ࡢ㛫㝸࡜ᐃ⩏ࡋࠊࡇࡢࣁࢵࢳࣥࢢ㊥㞳ࢆ 50 ȝm㸪70 ȝm㸪100 ȝm ࡜ኚ໬ࡉࡏ
ࡓ㸬
3. ⤖ᯝ
 Fig.2 ࡟࣮ࣞࢨ࣮ࡢࣁࢵࢳࣥࢢ㊥㞳࡜㐀ᙧ≀ࡢ⾲㠃⢒ࡉ㸦Ra㸧ࡢ㛵ಀࢆ♧ࡍ㸬Fig.2 ࡼࡾ㸪ࣁࢵࢳࣥࢢ㊥㞳 50 ȝm㸪70 ȝm㸪100 ȝm ࡛ࡣࡑࢀࡒࢀ⾲㠃⢒ࡉ㸦Ra㸧
ࡣ 7.4 ȝm㸪3.1 ȝm㸪4.7 ȝm ࡜࡞ࡾ㸪ࣁࢵࢳࣥࢢ㊥㞳 70
ȝm ࡢ࡜ࡁ᭱ᑠ⾲㠃⢒ࡉ㸦Ra㸧3.1 ȝm ࢆ㐩ᡂࡋࡓ㸬

Fig.1 Schematic diagram of experimental setup for
Ti-6Al-4V fabrication.

Fig.2 Correlation between surface roughness andHatching distance.
4. ⤖ㄽ ௒ᅇ㸪SLM ࢆ⏝࠸ࡓ Ti ྜ㔠⓶⭷ᙧᡂ࡟࠾࠸࡚㸪⾲㠃⢒ࡉࢆᑠࡉࡃࡍࡿࡓࡵࡢ᭱㐺࡞ࣁࢵࢳࣥࢢ㊥㞳ࢆㄪ࡭ࡓ㸬ࣁࢵࢳࣥࢢ㊥㞳70 ȝmࡢ࡜ࡁRa㸻3.1 ȝm࡜࡞ࡾࠊᖹ⁥࡞㐀ᙧ㠃ࢆᣢࡘ Ti ྜ㔠⓶⭷ᙧᡂ࡟ᡂຌࡋࡓ㸬
5. ཧ ⪃ ᩥ ⊩㹙1㹛Yuji, S. and Masahiro, T. et al. : Investigation of
the microstructure and surface morphology ofa Ti6Al4V plate fabricated by vacuum
selective laser melting, Applied Physics A
Materials
Science&
Processing,122,(2016),439-4− 60 −(ඹྠ◊✲ศ㔝㸸ຍᕤࣉࣟࢭࢫᏛศ㔝)䝺䞊䝄⁐᥋䛻䜘䜛 Al ྜ㔠䛸 Mg ྜ㔠䛾␗ᮦ᥋ྜ㛵す኱Ꮫ໬Ꮫ⏕࿨ᕤᏛ㒊໬Ꮫ࣭≀㉁ᕤᏛ⛉すᮏ᫂⏕㸪ᯇᮏᖾᶞ㸯㸬⥴ゝ ㏆ᖺࠊ᪂ᖿ⥺࡞࡝ࡢ㍺㏦ᶵჾ࡟࠾ࡅࡿ᭦࡞ࡿ㧗㏿໬࠾ࡼࡧ┬࢚ࢿࣝࢠ࣮໬ࡢᐇ⌧ࡢࡓࡵࠊ㍍㔞࡛㧗ᙉᗘ࡞ᮦᩱࡢᑟධࡀồࡵࡽࢀ࡚࠸ࡿࠋࡑࡢࡓࡵࠊࡇࢀࡲ࡛౑⏝ࡉࢀ࡚ࡁࡓ Al ྜ㔠ࡢ୍㒊ࢆ Mg ྜ㔠࡟⨨ࡁ᥮࠼ࡿ࣐
ࣝࢳ࣐ࢸࣜ࢔ࣝ໬ࡀ᳨ウࡉࢀࠊࡑࡢ᪉ἲ࡜ࡋ࡚ Al ྜ㔠࡜ Mg ྜ㔠ࡢ␗ᮦ᥋ྜࡀ࠶ࡆࡽࢀ࡚࠸ࡿࠋ ᚑ᮶␗ᮦ᥋ྜࡀ⾜ࢃࢀ࡚ࡁࡓ᪉ἲ࡜ࡋ࡚࢔࣮ࢡ⁐᥋ࡀ࠶ࡆࡽࢀࡿࡀࠊ࢔࣮ࢡ⁐᥋ࡣධ⇕ࡀ኱ࡁࡃ࡞ࡿࡓࡵࠊ
Al ྜ㔠࡜ Mg ྜ㔠ࡢ᥋ྜ⏺㠃࡟⬤ᙅ࡞㔠ᒓ㛫໬ྜ≀ᒙ㸦IMC ᒙ㸧ࡀ⏕ᡂࡍࡿࠋࡑࡇ࡛ࠊࢫ࣏ࢵࢺᚄࡀᑠࡉࡃ
࢔࣮ࢡ⁐᥋࡞࡝࡜ẚ㍑ࡋ࡚ධ⇕ࢆᑠࡉࡃ࡛ࡁࡿ࣮ࣞࢨ⁐᥋࡟ὀ┠ࡋࠊ࣮ࣞࢨࡢฟຊ࡞࡝ᵝࠎ࡞᮲௳ࢆኚ໬ࡉ
ࡏ࡚ Al ྜ㔠࡜ Mg ྜ㔠ࢆ␗ᮦ᥋ྜࡉࡏࠊᚓࡽࢀࡓ⁐᥋⥅ᡭࡢᘬᙇᙉᗘ࠾ࡼࡧ᥋ྜ⏺㠃ࡢ⤌⧊ほᐹࢆ⾜࠸ࠊ㧗࠸⥅ᡭᙉᗘࡀᚓࡽࢀࡿ⁐᥋᮲௳࠾ࡼࡧྛ᮲௳࡛ࡢᘬᙇᙉᗘ࡜ IMC ᒙࡢ㛵㐃ᛶ࡟ࡘ࠸࡚ㄪᰝࡍࡿࡇ࡜ࢆ┠ⓗ࡟◊✲ࢆ⾜ࡗࡓࠋ
㸰㸬ᐇ㦂᪉ἲ ᙧ≧ࡀ 250753(mm)ࡲࡓࡣ 125753(mm)ࡢ Al ྜ㔠 A6061 ࠾ࡼࡧ Mg ྜ㔠 AZ31 ࡢ⤌ࡳྜࢃࡏ࡜ࠊᙧ
≧ࡀ 12562.53(mm)ࡢ Al ྜ㔠 6N01 ࠾ࡼࡧ Mg ྜ㔠 AX41 ࡟ࡘ࠸࡚ࠊ࣮ࣞࢨฟຊࢆ 1ࠥ10 kWࠊ⁐᥋㏿ᗘࢆ
3~16 m/minࠊ࢜ࣇࢭࢵࢺࢆ Al ഃ࡜ Mg ഃ࡟ࡑࢀࡒࢀ 0ࠥ1.0 mm ࡢ⠊ᅖෆ࡛ࡑࢀࡒࢀࡎࡽࡋ࡚ࠊᵝࠎ࡞⁐᥋᮲௳࡛࣮ࣞࢨ⁐᥋ࢆ⾜ࡗࡓࠋࡲࡓࠊ᥋ྜ⏺㠃࡟ Ti ࠾ࡼࡧ Zn ࡢ࢖ࣥࢧ࣮ࢺᮦࢆ⏝࠸ࡓ࣮ࣞࢨ⁐᥋ࡶ⾜ࡗࡓࠋᐇ㦂ᚋࡣᚓࡽࢀࡓ⁐᥋⥅ᡭࡢᘬᙇヨ㦂ࢆ⾜࠸ࠊྛ⁐᥋᮲௳࡟࠾ࡅࡿᙉᗘࢆ᳨ドࡋࡓࠋ ⤌⧊ほᐹ࡜ࡋ࡚ࡣࠊගᏛ㢧ᚤ㙾, SEM-EDX ࢆ⏝࠸࡚᩿㠃ほᐹ࡟࠾ࡅࡿ᥋ྜ⏺㠃࠾ࡼࡧ⁐⼥㒊ࡢ㔠ᒓ㛫໬ྜ≀ᒙ࡞࡝ࡢ⤌⧊ኚ໬ࡢ☜ㄆࢆࡋࡓࠋࡲࡓࠊᘬᙇヨ㦂ᚋࡢ◚᩿㠃ࢆ⏝࠸࡚ XRD ࡢ ᐃࢆ⾜࠸ࠊ◚᩿㠃࡟⏕ᡂࡉࢀࡓ㔠ᒓ㛫໬ྜ≀┦ࡢ≉ᐃࢆ⾜ࡗࡓࠋ㸱㸬◊✲⤖ᯝ
Fig. 1 ࡟࣮ࣞࢨฟຊ 10 kWࠊ⁐᥋㏿ᗘ 8 m/minࠊ࢖ࣥࢧ࣮
ࢺᮦ࡞ࡋ࡛࢜ࣇࢭࢵࢺ᮲௳ࢆኚ໬ࡉࡏࡓ࡜ࡁࡢ A6061 ࡜
AZ31 ࡢ⁐᥋⥅ᡭࡢᘬᙇヨ㦂⤖ᯝࢆ♧ࡍࠋ࢜ࣇࢭࢵࢺ Al ഃ
0.6 mm ࡢ᮲௳ࡢ⥅ᡭࡢᘬᙇヨ㦂ࡣ 2 ᅇ⾜࠸㸦ࡑࡢ࠺ࡕ 1 ᅇࡣྲྀ௜᫬࡟๭ࢀࡓ㸧
ࠊ0.8 mm ࡢ᮲௳ࡢ᪉ࡣ 3 ᅇ⾜ࡗࡓࠋ⤖ᯝࡼࡾࠊAl ഃ 0.8 mm ࡢ࢜ࣇࢭࢵࢺ᮲௳ࡢ᪉ࡀ 3 ಸ௨ୖࠊᘬᙇᙉᗘࡀ㧗ࡃ࡞ࡗࡓࠋ
ḟ࡟ࠊFig. 2 ࡟ Fig. 1 ࡢ 2 ࡘࡢ᮲௳ࡢ⁐⼥㒊࡜ Mg ྜ㔠ഃFig. 1 Tensile strength test of two samples.

ࡢቃ⏺ࡢ SEM ⏬ീࢆ♧ࡍࠋ཮᪉࡟࠾࠸࡚ࠊMg ྜ㔠ഃ࡜⁐⼥㒊ࡢ㛫࡟␗࡞ࡿࢥࣥࢺࣛࢫࢺࡢᒙࡀ☜ㄆ࡛ࡁࡓࠋࡇࡢ㡿ձ : IMC layer, ղ : Mg side, ճ : Fusion zoneᇦ࡟ᑐࡋ࡚ EDX ࡟ࡼࡿ㠃ศᯒ࠾ࡼࡧⅬศᯒࢆ⾜ࡗࡓ⤖ᯝࠊ A
ࡇࡢᒙࡣ㔠ᒓ㛫໬ྜ≀ࢆྵࡴ࡜⪃࠼ࡽࢀࡿࠋࡇࡢᒙࡢཌࡉ
ࡣ࢜ࣇࢭࢵࢺ Al ഃ 0.6 mm ࡢ⥅ᡭࡀ⣙ 25 ȝmࠊ࢜ࣇࢭࢵࢺ
Al ഃ 0.8 mm ࡢ⥅ᡭࡀ⣙ 17 ȝm ࡛࠶ࡗࡓࠋ௨ୖࡢ⤖ᯝࢆ㋃
ࡲ࠼࡚ࠊAl ࡜ Mg ࠿ࡽ࡞ࡿ⬤ᙅ࡞ IMC ᒙࡢཌࡉࠊࡍ࡞ࢃࡕ
㔠ᒓ㛫໬ྜ≀ࡢ㔞ࡀ⥅ᡭᙉᗘ࡟ᙳ㡪ࢆཬࡰࡋ࡚࠾ࡾࠊ㔠ᒓ㛫໬ྜ≀ࢆᙧᡂࡍࡿ⁐⼥㒊ࡢ Al ࡜ Mg ࡢ⤌ᡂ࡟ࡘ࠸࡚ࠊ࢜

ճ

B
ձ

ղ
ճ

ձ

ղ
10 μm

Fig. 2 The SEM images of two samples (A : offset to
Al side 0.6 mm, B : offset to Al side 0.8 mm).

ࣇࢭࢵࢺࡀᐤ୚ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋ
㸦ඹྠ◊✲ศ㔝㸸ຍᕤࣉࣟࢭࢫᏛศ㔝㸧− 61 −

࢚ࢿࣝࢠ࣮ࣅ࣮࣒࡟ࡼࡿ᪂⾲㠃ᨵ㉁ᶵ⬟ࡢ๰〇㠀⇕࣮ࣞࢨ࣮ຍᕤ࡟ࡼࡿ㔠ᒓ⾲㠃࡬ࡢ᪂ᶵ⬟௜୚ி㒔኱Ꮫ໬Ꮫ◊✲ᡤ࣮ࣞࢨ࣮≀㉁⛉Ꮫ◊✲㡿ᇦᶫ⏣ᫀᶞࠊ༖㔝᣺୍㑻┠ⓗ࣮ࣞࢨ࣮ຍᕤ࡟࠾ࡅࡿ≀㉁࡜ࡢ┦஫స⏝ไᚚ࡛ࡣࠊ࣮ࣞࢨ࣮◚ቯ㜈್㸦ࡇࡇ࡛ࡣ࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥ㜈್࡜࿧ࡪ㸧ࡀ㔜せ࡞ᙺ๭ࢆᯝࡓࡋ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽ࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥ㜈್ࣇ࣮࢚ࣝࣥࢫࡢᮦᩱ✀౫Ꮡᛶࡣ࡯࡜ࢇ࡝ㄪ࡭ࡽࢀ࡚࠾ࡽࡎࠊࢥࣄ࣮ࣞࣥࢺ┦஫స⏝࡟ࡼࡿ㠀⇕ⓗ࣮ࣞࢨ࣮ຍᕤᢏ⾡ᇶ┙ࡣᵓ⠏ࡉࢀ࡚࠸࡞࠸ࠋࡇࢀࡲ࡛࡟ࠊᡃࠎࡣ㏆㉥እᇦࡢࣇ࢙࣒ࢺ⛊ࣃࣝࢫ࣮ࣞࢨ࣮ࢆ⏝࠸✀ࠎࡢ㔠ᒓࠊ༙ᑟయᮦᩱ࡟ᑐࡋ
࡚࢔ࣈ࣮ࣞࢩࣙࣥ㜈್ࢆᐃࡋࠊᮦᩱ࡜࣮ࣞࢨ࣮࡜ࡢࢥࣄ࣮ࣞࣥࢺ┦஫స⏝࡟࠾࠸࡚㠀⥺ᙧ┦஫స⏝≀⌮ࡀ㔜せ࡞ᙺ๭ࢆᯝࡓࡋ࡚࠸ࡿࡇ࡜ࢆぢฟࡋࡓ>@>@ࠋ୍᪉ࠊ࣮ࣞࢨ࣮ຍᕤࡢศ㔝࡛ࡣࠊ࣮ࣞࢨ࣮࡜⤯⦕ᮦᩱ࡜ࡢࢥࣄ࣮ࣞࣥࢺ┦஫స⏝ࢆไᚚࡍࡿࡇ࡜࡛࢔ࣈ࣮ࣞࢩࣙࣥ㜈್ࣇ࣮࢚ࣝࣥࢫࡀ㸯᱆పῶ>@>@ࡍࡿࡇ࡜ࡀᮡ
ᒸࡽ࡟ࡼࡾሗ࿌ࡉࢀࠊ㧗ຠ⋡ຍᕤ㸦㸯᱆ྥୖ㸧࡬ࡢ㐨ࡀ㛤࠿ࢀ࡚࠸ࡿࠋ≉࡟Ἴ㛗ࡢ␗࡞ࡿ㸰ྎࡢ࣮ࣞࢨ࣮ࢆ
⏝࠸ࠊᅛయෆ࡟᮰⦡ࡉࢀ࡚࠸ࡿ㟁Ꮚࡢ୰㛫‽఩ࢆᕦࡳ࡟ไᚚࡍࡿࡇ࡜ࡀ㘽࡜࡞ࡗ࡚࠸ࡿࠋ᭦࡟ࠊィศ㔝࡟࠾࠸࡚ࡣࠊἼ㛗ࡢ␗࡞ࡿ㸰ྎࡢ࣮ࣞࢨ࣮ࢆ౑࠺ࡇ࡜࡛ࠊࡇࢀࡲ࡛୙ྍ⬟࡜ࡉࢀ࡚ࡁࡓᅇᢡ㝈⏺ࢆ኱ࡁࡃ㉺࠼ࡿȢ㸦Ȣ㸸࣮ࣞࢨ࣮Ἴ㛗㸧ࡢ✵㛫ศゎ⬟࡛ࡢほ࡟ᡂຌࡋࠊ㉸ゎീ㢧ᚤ㙾ᢏ⾡ࡀᵓ⠏ࡉࢀࠊ ᖺᗘࣀ࣮࣋ࣝ໬Ꮫ㈹㸦(%HW]LJ67+HOO:(0RHUQHU ࡽ㸧ࢆཷ㈹ࡋ࡚࠸ࡿࠋࡇࢀࡽࡢ᪂ࡋ࠸▱ぢࡣࠊඹ㬆྾཰ࡍࡿ‽఩ࢆࡶࡘᮦᩱ࡟ࡘ࠸࡚㐺⏝ࡉࢀࡿࡶࡢ࡛ࠊ㔠ᒓࡸ༙ᑟయ࡛ࡣ㐺⏝ࡉࢀ࡞࠸࡜⪃࠼ࡽࢀࡓࡁࡓࠋ≉࡟ࠊ㏆㉥እࡢ࣮ࣞࢨ࣮↷ᑕୗࡢ㔠ᒓࡸ༙ᑟయ࡟࠾࠸࡚྾཰࡟ᐤ୚ࡍࡿ⮬⏤㟁Ꮚࡣࠊ‽఩࡜࠸࠺ᴫᛕࡀ࡞ࡃ㸰Ἴ㛗࣮ࣞࢨ࣮↷ᑕࡢຠᯝ࡟ࡘ࠸࡚ࡣ㆟ㄽࡉࢀ࡚ࡇ࡞࠿ࡗࡓࠋᮏඹྠ◊✲࡛ࡣࠊ༙ᑟయ࡛࠶ࡿࢩࣜࢥࣥ࡟ࡘ࠸
࡚ࡢ㸰Ἴ㛗ࢲࣈࣝࣃࣝࢫ↷ᑕࡍࡿࡇ࡜࡛ຍᕤ㸦࢔ࣈ࣮ࣞࢩࣙࣥ㸧ࡀᢚไࡉࢀࡿྍ⬟ᛶࢆㄪᰝࡋࡓࡢ࡛ሗ࿌ࡍ
ࡿࠋ
ᐇ㦂᪉ἲ
ࢲࣈࣝࣃࣝࢫ↷ᑕᐇ㦂ࡢ㓄⨨ࢆᅗ  ࡟♧ࡍࠋ7LVDSSKLUH ቑᖜࢩࢫࢸ࣒㸦7ODVHU,&5.\RWR8QLY㸧࠿ࡽࡢ࣮ࣞࢨ࣮㸦୰ᚰἼ㛗 QPࣃࣝࢫᖜ IV㸪⧞㏉ࡋ࿘Ἴᩘ +]㸧ࢆࣅ࣮࣒ࢫࣉࣜࢵࢱ࣮࡟ࡼࡾ㸰ࡘ࡟ศᒱࡋࠊ୍᪉ࡢࣅ࣮࣒ࢆ %%2 ⤖ᬗ࡟ࡼࡾ QP ࡬Ἴ㛗ኚ᥮ࡋࡓᚋࠊග㊰ᕪࢆㄪᩚࡋ࡚࠿ࡽࠊ෌ࡧྠ㍈ᖹ⾜ࣅ࣮࣒࡟ࡋࠊ↔Ⅼ㊥㞳 PP ࡢ▼ⱥࣞࣥࢬ࡟ࡼࡾ༢⤖ᬗࢩࣜࢥࣥ㸦ཌࡉ ȣPࠊQ ᆺࠊ㠃᪉఩  ࠊ᢬ᢠ⋡ȐFP㸧⾲㠃࡬࡜㞟ග↷ᑕࡋࡓࠋࣅ࣮࣒ࣉࣟࣇ࢓࢖ࣝࡣ࢞࢘ࢩ࢔ࣥᙧ≧࡛࠶ࡾࠊ↷ᑕ఩⨨࡟࠾ࡅࡿࣅ࣮࣒
ࡢ್༙඲ᖜࡣ ȣP ࡛࠶ࡗࡓࠋ࣮ࣞࢨ࣮࢚ࢿࣝࢠ࣮ࡣ 㹼ȣ-ࠊ↷ᑕᅇᩘࡣ 㹼SXOVH ࡢ⠊ᅖ࡛ኚ໬ࡉ
ࡏᐇ㦂ࢆ⾜ࡗࡓࠋᐇ㦂୰ࡢ࣮ࣞࢨ࣮ࡢ࢚ࢿࣝࢠ࣮Ᏻᐃᗘࡣ QP ࡟࠾࠸࡚⣙ 㸣㸦QP ࡟࠾࠸࡚⣙ 㸧࡛࠶ࡗࡓࠋQP ࣮ࣞࢨ࣮ࡢࣇ࣮࢚ࣝࣥࢫ㸦)㸧㸪QP ࡢ࣮ࣞࢨ࣮ࡢࣇ࣮࢚ࣝࣥࢫ㸦)㸧ࡣࠊࡑࢀࡒࢀࡢග
㊰ୖ࡟タ⨨ࡋࡓ೫ගᏊᑐ࡜༙Ἴ㛗ᯈ࠿ࡽ࡞ࡿ࢚ࢿࣝࢠ࣮ῶ⾶ჾ࡟ࡼࡾࠊ) ) ࡜࡞ࡿࡼ࠺࡟ㄪᩚࡉࢀ) ) P-FPP-FPP-FP ࡢ  ㏻ࡾ࡟ࡘ࠸࡚↷ᑕࢆ⾜ࡗࡓࠋࢩࣜࢥࣥࡢ࢔ࣈ࣮ࣞࢩࣙࣥ㜈್ࡣࠊ
QP ࡟࠾࠸࡚ )WKࠥP-FPࠊQP ࡟࠾࠸࡚ )WKࠥP-FP ࡛࠶ࡗࡓࠋࡇࡇ࡛ࠊṇࡢ㐜ᘏ᫬㛫ࡣ QP ࡢࣃࣝࢫࡀඛ࡟↷ᑕࡉࢀࠊࡑࡢᚋ QP ࡢࣃࣝࢫࡀ↷ᑕࡉࢀࡿࢲࣈࣝࣃࣝࢫࢆ♧ࡋࠊ㈇ࡢ㐜ᘏ᫬㛫ࡣ QP ࡢࣃࣝࢫࡀඛ࡟↷ᑕࡉࢀࡿࢲࣈࣝࣃࣝࢫࢆ♧ࡋ࡚࠸ࡿࠋ
◊✲⤖ᯝ࡜⪃ᐹᅗ  ࡟ࡣ␗࡞ࡿ㐜ᘏ᫬㛫ࡢ㸰Ἴ㛗ࢲࣈࣝࣃࣝࢫ࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡾࢩࣜࢥࣥ⾲㠃࡟ᙧᡂࡉࢀࡓຍᕤ᩿㠃ࡢ୍− 62 −

౛ࢆ♧ࡍࠋຍᕤ⑞㊧ࡣ࣮ࣞࢨ࣮㢧ᚤ㙾 ࣮࢚࢟ࣥࢫ♫〇 9.;; ࢆ⏝࠸࡚  ḟඖ ᐃࡋࠊຍᕤ⑞ࡢ῝ᅗ  Ἴ㛗ࢲࣈࣝࣃࣝࢫࣅ࣮࣒↷ᑕᐇ㦂㓄⨨ᅗ   ࣌࢔↷ᑕ࡟ࡼࡾᙧᡂࡉࢀࡓ 6L ⾲㠃ࡢຍᕤ᩿㠃㸦D㸧㐜ᘏ᫬㛫 SVࠊ E 㐜ᘏ᫬㛫 SV

ࡉࢆ↷ᑕࣃࣝࢫ࣌࢔࣮࡛๭ࡿࡇ࡜࡛  ࢲࣈࣝࣃࣝࢫ࣌࢔࠶ࡓࡾ࡟᥀ࢀࡿ῝ࡉ㸦࢔ࣈ࣮ࣞࢩࣙࣥ⋡㸧ࢆồࡵࡓࠋ㐜ᘏ᫬㛫 SV ࡢ㸰Ἴ㛗ࢲࣈࣝࣃࣝࢫ࣮ࣞࢨ࣮㸦↷ᑕࣃࣝࢫ࣌࢔࣮ ᅇ㸧࡛ࡣࠊᙧᡂࡉࢀࡓຍᕤ⑞㊧ࡢ῝ࡉࡣ ȣP ࡛࠶ࡗࡓࠋ୍᪉ࠊSV ࡢ㐜ᘏ᫬㛫࡛ࡣ ȣP ࡢຍᕤ῝ࡉࢆ♧ࡋࡓࠋ㐜ᘏ᫬㛫ࡀ኱ࡁࡃ࡞ࡿ࡜࢔ࣈ
࣮ࣞࢩࣙࣥࡀᢚไࡉࢀࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ࡞࠾ࠊQP ࡢࡳࡢࣃࣝࢫ↷ᑕ࡟ࡼࡾᚓࡽࢀࡓ࢔ࣈ࣮ࣞࢩࣙࣥ⋡ࠥȣPSXOVH ࢆࠊQP ࡢࡳࡢࣃࣝࢫ↷ᑕ࡟ࡼࡾᚓࡽࢀࡓ࢔ࣈ࣮ࣞࢩࣙࣥ⋡ࡣ ȣPSXOVH ࡛࠶ࡗࡓࠋ㸰Ἴ㛗ࢲࣈࣝࣃࣝࢫࡢ㐜ᘏ᫬㛫౫Ꮡᛶࢆヲ⣽࡟ㄪ࡭ࡓ࡜ࡇࢁࠊ㐜ᘏ᫬㛫 V ㏆ഐ࡟࠾࠸࡚࢔ࣈ࣮ࣞࢩࣙࣥ⋡ࡣȣPSDLU ࡛࠶ࡗࡓࡀࠊSV ࡢ㐜ᘏ᫬㛫࡛ࡣᢚไຠᯝࡣ኱ࡁࡃ ȣPSDLU ࡲ࡛ῶᑡࡋࡓࠋ୍᪉ࠊ
㐜ᘏ᫬㛫ࡀ㈇࡛ࡣᢚไຠᯝࡣᑠࡉࡃ㐜ᘏ᫬㛫ࡀ㈇࡟኱ࡁࡃ࡞ࡿ࡟ࡘࢀ࡚࢔ࣈ࣮ࣞࢩࣙࣥ⋡ࡀቑຍࡍࡿഴྥࢆ
♧ࡋࡓࠋ㐜ᘏ᫬㛫  ㏆ഐࡢ࢔ࣈ࣮ࣞࢩࣙࣥ⋡ࡣࠊQP ࡢࡳࡢࣃࣝࢫ↷ᑕ࡟ࡼࡿ࢔ࣈ࣮ࣞࢩࣙࣥ⋡࡟ẚࡋ࡚⣙㸰ಸ኱ࡁ࠸ࠋᮏ⤖ᯝࡣࠊ༢⊂ࡢ QP ࣃࣝࢫ࡛ࡣ࢔ࣈ࣮ࣞࢩࣙࣥࡋ࡞࠸ࣇ࣮࢚ࣝࣥࢫ࡛࠶ࡗ࡚ࡶࢲࣈࣝࣃ
ࣝࢫ↷ᑕࡍࡿࡇ࡜࡛ࠊQP ࡢࣇ࣮࢚ࣝࣥࢫࡀ࢔ࣈ࣮ࣞࢩࣙࣥ࡟᭷ຠ࡟ᐤ୚ࡋ࡚࠸ࡿࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋ
⤖ㄽᮏᐇ㦂࡛ࡣࠊἼ㛗ࡢ␗࡞ࡿࢲࣈࣝࣃࣝࢫࣅ࣮࣒ࢆࢩࣜࢥࣥ࡟↷ᑕࡋࠊ࢔ࣈ࣮ࣞࢩࣙࣥ⋡ࡀᢚไࡉࢀࡿࡇ࡜ࢆ
ᐇ㦂ⓗ࡟᫂ࡽ࠿࡟ࡋࡓࠋSV 㐜ᘏ᫬㛫࡛ࡣࠊSV ࡟ẚࡋ࡚࢔ࣈ࣮ࣞࢩࣙࣥ⋡ࡀ  ࡜࡞ࡗࡓࠋ࢔ࣈ࣮ࣞࢩࣙ
ࣥᢚไᶵᵓ࡟ࡘ࠸࡚ࡣࠊᡃࠎࡢ◊✲ࢢ࣮ࣝࣉࡼࡾࠊ㸯Ἴ㛗ࢲࣈࣝࣃࣝࢫࣅ࣮࣒࡟࠾࠸࡚㔠ᒓ࡟ࡘ࠸࡚ྠᵝࡢ⌧㇟ࡀࡳࡽࢀࡿࡇ࡜ࢆ᪤࡟ሗ࿌ࡋ࡚࠸ࡿ>@ࠋἼ㛗ࡢ⤌ࡳྜࢃࡏࢆኚ࠼࡚ࡶᢚไຠᯝࡀ࠶ࡿࡇ࡜࠿ࡽࢲࣈࣝࣃ
ࣝࢫࡢ㐜ᘏ᫬㛫ࡀ࢔ࣈ࣮ࣞࢩࣙࣥᢚไ࡟ᐤ୚ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋ
ㅰ㎡ᮏ◊✲ࡢ୍㒊ࡣ㸪⛉Ꮫ◊✲㈝⿵ຓ㔠㸦ᇶ┙◊✲㸦&㸧ㄢ㢟␒ྕ -3.㸧ࠊཬࡧ㸦ᅜ㸧᪂࢚ࢿࣝࢠ࣮࣭⏘ᴗᢏ⾡⥲ྜ㛤Ⓨᶵᵓ㸦1('2㸧ࡢࠕ࢚ࢿࣝࢠ࣮࣭⎔ቃ᪂ᢏ⾡ඛᑟࣉࣟࢢ࣒ࣛ㸭᪂ᶵ⬟ᮦᩱ๰ᡂࡢࡓࡵࡢ㧗ရ఩࣮ࣞࢨ࣮ຍᕤᢏ⾡ࡢ㛤Ⓨࠖࡢᨭ᥼ࢆཷࡅ࡚⾜ࢃࢀࡓࠋཧ⪃ᩥ⊩[1] M. Hashida, S. Namba, K. Okamuro, S. Tokita, S. Sakabe, Phys. Rev. B 81, 115442 (2010).
[2] M. Hashida, A. Semerok, O. Govert, G. Petite, Y. Izawa, and J. F-. Wagner, Appl. Surf. Sci. 197-198, 862-867(2002).
[3] M. Hashida, Y. Miyasaka, T. Nishii, M. Shimizu, S. Inoue, S. Sakabe”, IEEJ Trans. FM 135, 575-580 (2015).
[4] K. Sugioka, K. Obata, M. H. Hong, D. J. Wu, L. L. Wong, Y. F. Lu, et. al, Appl. Phys. A 77, 251-255(2003).
[5] K. Sugioka, K. Midorikawa: ”VUV-UV multiwavelength excitation process for high quality ablation of fusedsilica” Proc. SPIE 8777, 877704 (2013).

− 63 −

[6] Y. Furukawa, R. Sakata, K. Konishi, K. Ono, S. Matsuoka, K. Watanabe, S. Inoue, M. Hashida, and S. Sakabe,Appl. Phys. Lett. 108, 264101 (2016).              㸦ඹྠ◊✲ศ㔝㸸ຍᕤࣉࣟࢭࢫᏛศ㔝㸧− 64 −

ᅛయ࢖࢜ࣥ஺᥮ἲࢆ⏝࠸ࡓ㔠ᒓ࢖࢜ࣥῧຍ࡟ࡼࡿ࢞ࣛࢫࡢຍᕤ≉ᛶྥୖ༓ⴥ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ᯇᆏኊኴ
1. ࡣࡌࡵ࡟
࢞ࣛࢫࡣࡑࡢ㏱᫂ᛶ㸪໬ᏛⓗᏳᐃᛶ㸪㧗࠸⤯⦕ᛶ࡞࡝࠿ࡽ㸪MEMSࡢᇶᯈᮦᩱࡸ࣐࢖ࢡࣟὶయࢹࣂ࢖ࢫ࡞࡝࡬㟂せࡀᣑ኱ࡋ࡚࠸ࡿ㸬ࡋ࠿ࡋࡑࡢ୍᪉࡛ග྾཰⋡ࡢపࡉࡸ◳⬤ᛶ࠿ࡽຍᕤࡢᅔ㞴࡞ᮦᩱ࡛ࡶ࠶ࡿ㸬ᮏ◊✲࡛ࡣࡇࢀࡲ࡛㸪㟁ᅽ༳ຍࢆే⏝ࡋࡓᅛయ࢖࢜ࣥ஺᥮ἲࢆ⏝࠸࡚࢞ࣛࢫෆ㒊࡟㔠ᒓ࢖࢜ࣥࢆᑟධࡍࡿࡇ࡜࡟ࡼࡾ㸪࢞ࣛࢫࡢຍᕤ≉ᛶྥୖࢆᅗࡗ࡚ࡁࡓ1)㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ᅛయ࢖࢜ࣥ஺᥮ἲ࡟ࡼࡿ㔠ᒓῧຍࣉࣟࢭࢫࡣῧຍ᮲௳ࡢ᭱㐺໬ࡀ༑ศ࡛ࡣ࡞ࡃ㸪࢖࢜ࣥ஺᥮᫬㛫ࡢ㛗ࡉࡀၥ㢟࡜࡞ࡗ࡚࠸ࡓ㸬ᮏ◊✲࡛ࡣ㸪ᅛయ࢖࢜ࣥ஺᥮ἲ࡟ࡼࡗ࡚࣍࢘ࢣ࢖
㓟࢞ࣛࢫ࡟㖟࢖࢜ࣥࢆῧຍࡍࡿ㝿ࡢฎ⌮᮲௳ࡀῧຍᣲື࡟ཬࡰࡍᙳ㡪ࢆ᳨ウࡋࡓ㸬
2. ౪ヨᮦᩱ࠾ࡼࡧᐇ㦂᪉ἲ
 Fig. 1࡟ᐇ㦂⿦⨨ࡢᴫ␎ࢆ♧ࡍ㸬ྠᅗ࡟♧ࡍࡼ࠺࡟࢞ࣛࢫ࡜㖟⟩ࢆ㖡㟁ᴟ㸪⤯⦕య㸪἞ල࡛ᣳࡳ㸪࣎ࣝࢺ⥾⤖࡟ࡼࡾヨᩱ඲యࢆᨭᣢࡋࡓ㸬ᐇ㦂ࡣ┿✵ᐜჾෆ࡟࠾࠸࡚㸪110-3 Pa௨ୗࡢ㞺ᅖẼ࡛⾜ࡗࡓ㸬ヨᩱ࡟ࡣ࣍࢘ࢣ࢖㓟࢞
ࣛࢫ㸦Schott, Borofloat 33, ᯈཌ㸸1.1 mm㸧࡜㸪⣧ᗘ99.98%ࡢ㖟⟩㸦ࢽࣛࢥ㸪⟩ཌ㸸0.01 mm㸧ࢆ౑⏝ࡋࡓ㸬ヨᩱࢆ┿✵ᐜჾෆ㒊࡛㧗 ࡟ಖᣢࡋ㸪ୖୗ㟁ᴟ㛫࡟㟁ᅽࢆ༳ຍࡍࡿࡇ࡜࡛࢞ࣛࢫ࡟㖟࢖࢜ࣥࢆῧຍࡋࡓ㸬ࡇࡢ᫬㸪㞺ᅖẼ ᗘ࡜༳ຍ㟁ᅽࢆኚ໬ࡉࡏ࡚ᐇ㦂ࢆ⾜ࡗࡓ㸬࡞࠾㸪ᐇ㦂㛤ጞ๓ࡢ㞺ᅖẼ ᗘࡣ623㹼723 K㸪༳ຍ㟁ᅽࡣ100
㹼600 V࡜ࡋ㸪ᐇ㦂┤ᚋࡢヨᩱ ᗘࡶేࡏ࡚ ᐃࡋࡓ㸬࢖࢜ࣥ஺᥮᫬㛫ࡣ1200 s࡛࠶ࡾ㸪ᐇ㦂୰ࡢྛヨᩱ࡟ᑐࡋ㸪࢞ࣛࢫ୰ࢆὶࢀࡓ⥲㟁Ⲵ㔞ࢆィ ࡋࡓ㸬
3. ᐇ㦂⤖ᯝ
3.1 ヨᩱ࡟ὶࢀࡓ㟁Ⲵ㔞࡜ῧຍ῝ࡉ࡜ࡢ㛵ಀ࢞ࣛࢫ୰࡟ῧຍࡉࢀࡓ㖟࢖࢜ࣥࡢ⥲㔞㸦ὶࢀࡓ⥲㟁Ⲵ㔞㸧࡜ᐇ㦂ᚋ࡟ヨᩱࢆษ᩿ࡋ࡚ィ ࡋࡓῧຍ῝ࡉ࡜ࡢ㛵ಀࢆ Fig. 2 ࡟♧ࡍ㸬ࡇࡇ࡛ࡣ ᗘ࠾ࡼࡧ༳ຍ㟁ᅽࡢ᮲௳ࡢ␗࡞ࡿ 10 Ⅼࡢヨᩱ࡟ࡘ࠸࡚⤖ᯝࢆ♧ࡋ࡚࠸ࡿࡀ㸪㟁Ⲵ㔞࡜ῧຍ῝ࡉࡀᴫࡡẚ౛ࡋ࡚࠸ࡿࡇ࡜࠿ࡽ㸪࢞ࣛࢫ࡬ࡢ㖟࢖࢜ࣥࡢῧຍ㔞ࢆ㟁Ⲵ㔞࡟ࡼࡗ࡚ホ౯ྍ⬟࡛࠶ࡿࡇ࡜
ࡀศ࠿ࡗࡓ㸬
3.2 ࢖࢜ࣥῧຍ㔞࡟ᑐࡍࡿ㞺ᅖẼ ᗘࡢᙳ㡪
 Fig. 3 ࡟ヨᩱ ᗘࢆኚ໬ࡉࡏࡓሙྜࡢ⥲࢖࢜ࣥῧຍ㔞࡜㞺ᅖẼ ᗘࡢ㛵ಀࢆ♧ࡍ㸬ྠᅗ࠿ࡽᮏᐇ㦂࡟࠾ࡅࡿῧ
ຍ㏿ᗘࡢ ᗘ౫Ꮡᛶࡀ Arrhenius ᆺࡢ཯ᛂࣔࢹࣝ࡟ࡼࡗ࡚⾲⌧࡛ࡁࡿࡇ࡜ࡀศ࠿ࡿ㸬

Fig. 1 Experimental setup for solid-state ion exchange.

Fig. 2− 65 −

Relationship between charge and doped
depth.

Fig. 3Fig. 4 Relationship between applied voltage andcharge.
Sample temperatures before and after voltage application.

Relationship between temperature and charge.
Table 1

Applied voltage [V]Temperature before voltage application [K]Temperature after voltage application [K]

100

200

300

400

500

600

636

656

665

623
623

623

631

3.3 ࢖࢜ࣥῧຍ㔞࡟ᑐࡍࡿ༳ຍ㟁ᅽࡢᙳ㡪
 Fig. 4 ࡟༳ຍ㟁ᅽࢆኚ໬ࡉࡏࡓሙྜࡢ⥲࢖࢜ࣥῧຍ㔞࡜㟁ᅽࡢ㛵ಀࢆ♧ࡍ㸬ྠᅗ࠿ࡽ㸪ᮏᐇ㦂࡟࠾ࡅࡿῧຍ㔞ࡣ㸪ప㟁ᅽᇦ࡛ࡣᴫࡡ┤⥺ⓗ࡟ቑຍࡋ࡚࠸ࡿ୍᪉࡛㸪㧗㟁ᅽᇦ࡛ࡣ኱ࡁࡃቑຍࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬࡞࠾㸪ࡇࡢᐇ㦂࡛ࡣ༳ຍ㟁ᅽࢆ 600 V ࡜ࡋࡓሙྜ㸪኱㟁ὶࡢⓎ⏕࡟ࡼࡾヨᩱࡀ◚ᦆࡋࡓࡓࡵ㸪㟁Ⲵ㔞ࡣ♧ࡋ࡚࠸࡞࠸㸬4. ⪃ᐹ
 㟁ሙ࠾ࡼࡧ⃰ᗘ໙㓄ࡀᏑᅾࡍࡿ࢞ࣛࢫෆ࡛ࡢ࢖࢜ࣥὶ᮰ࡣᘧ(1)ࡢ Nernst-Planck ࡢᘧ࡛୚࠼ࡽࢀࡿ㸬  ‫ ܬ‬ൌ  െ‫ܦ‬డ௖డ௫െ ‫ܦ‬

௤௞்‫ܿܧ‬(1)ࡇࡇ࡛㸪J: ࢖࢜ࣥὶ᮰㸪D: ᣑᩓಀᩘ㸪c㸸࢖࢜ࣥ⃰ᗘ㸪q㸸࢖࢜ࣥ㟁Ⲵ࡛࠶ࡿ㸬ࡇࡢᘧࡣ࢖࢜ࣥὶ᮰ࡀ Fick ࡢἲ๎࡟ࡼࡿᣑᩓ㡯㸦ྑ㎶➨ 1 㡯㸧࡜㸪Ⲵ㟁⢏Ꮚࡀ㟁⏺ෆ࡛ཷࡅࡿࢻࣜࣇࢺ㡯㸦ྑ㎶➨ 2 㡯㸧࡟ࡼࡗ࡚⾲ࡉࢀࡿࡇ࡜
ࢆ♧ࡋ࡚࠸ࡿ㸬ࡓࡔࡋ㸪ᮏ◊✲࡛᥇⏝ࡋࡓ᮲௳ୗ࡛ࡣ㸪㟁ᅽ༳ຍࢆకࢃ࡞࠸࢖࢜ࣥᣑᩓࡣ☜ㄆࡉࢀ࡚࠾ࡽࡎ㸪⃰ᗘᣑᩓࡢᐤ୚࡟ࡘ࠸࡚ࡣ↓ど࡛ࡁࡿ࡯࡝ᑠࡉ࠸㸬ࡋࡓࡀࡗ࡚㸪࢖࢜ࣥὶ᮰ࡣ࢞ࣛࢫ୰࡛ࡢ㟁఩໙㓄࡟ᴫࡡẚ౛ࡍࡿ࡜⪃࠼ࡽࢀࡿ㸬Fig. 4 ࡢప㟁ᅽᇦ࡟࠾࠸࡚ῧຍ㔞ࡀ┤⥺ⓗ࡟ቑຍࡋ࡚࠸ࡿࡢࡣࡇࡢࡓࡵ࡛࠶ࡿ㸬୍᪉㸪500 V ௨ୖࡢ㟁ᅽ༳ຍ࡟ࡼࡗ࡚㸪᝿ᐃ௨ୖࡢ㟁Ⲵࡀὶࢀࡓ⌮⏤ࢆ᳨ウࡍࡿࡓࡵ㸪㟁ᅽ༳ຍ⤊஢┤ᚋࡢヨᩱ ᗘࢆ ᐃࡋࡓ㸬⤖ᯝࢆ Table 1 ࡟♧ࡍ㸬ྠ⾲࠿ࡽศ࠿ࡿࡼ࠺࡟㸪500 V ࡢ㟁ᅽ༳ຍࢆ⾜ࡗࡓሙྜ㸪1200 s ᚋࡢヨᩱ ᗘࡣ༳ຍ๓࡟
ẚ࡭࡚ 33 K㸪600 V ࡛ࡣ 600 s ᚋ࡟ 42 K ࡢ ᗘୖ᪼ࢆ♧ࡋ࡚࠸ࡿ㸦600 V ࡢሙྜࡣヨᩱ◚ᦆࡢࡓࡵ 1200 s ࡢ㟁ᅽ༳ຍࡀ⾜࠼࡞࠿ࡗࡓ㸧㸬ࡇࡢ⤖ᯝ࠿ࡽ㸪㟁ᅽ༳ຍ୰ࡢ᢬ᢠⓎ⇕࡟㉳ᅉࡍࡿヨᩱ ᗘࡢୖ᪼ࡀ㟁ὶࡢᛴୖ᪼ࢆᣍ࠸
ࡓࡓࡵ㸪ῧຍ㔞ࡢᛴቑ㸪ࡦ࠸࡚ࡣヨᩱࡢ◚ᦆ࡟⮳ࡗࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬5. ⤖ㄽ ᮏ◊✲࡛ࡣ㸪ᅛయ࢖࢜ࣥ஺᥮ἲ࡟ࡼࡿ࢞ࣛࢫ࡬ࡢ㔠ᒓ࢖࢜ࣥῧຍ࡟࠾࠸࡚㸪ฎ⌮᮲௳ࡢኚ໬ࡀῧຍᣲື࡟୚࠼
ࡿᙳ㡪ࢆ᳨ウࡋࡓ㸬ࡑࡢ⤖ᯝ㸪㟁ᅽ࠾ࡼࡧ ᗘࡢୖ᪼ࡀῧຍ῝ࡉࡢቑຍ࡟ຠᯝⓗ࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪㐣ᗘ࡞㟁ᅽ༳ຍࡣᇶᯈ ᗘࡢୖ᪼࡜ࡑࢀ࡟క࠺㟁ὶࡢቑຍࢆ㐃㙐ⓗ࡟⏕ࡌࡿࡓࡵ㸪㐺ษ࡞㟁ᅽ࣭ ᗘࡢ㑅ᐃࡀ㔜せ࡛࠶ࡿ㸬ཧ⪃ᩥ⊩1) ᯇᆏࡽ㸪ࠕᅛయ࢖࢜ࣥ஺᥮ἲ࡟ࡼࡿ࣮ࣞࢨຍᕤ⏝࢞ࣛࢫࡢ㛤Ⓨࠖ㸪⢭ᐦᕤᏛ఍ㄅ㸪79 (2013), 455-459.
㸦ඹྠ◊✲ศ㔝㸸ຍᕤࣉࣟࢭࢫᏛศ㔝㸧− 66 −

− 67 −

㸦ඹྠ◊✲ศ㔝㸸ຍᕤࣉࣟࢭࢫᏛศ㔝㸧− 68 −

࣮ࣞࢨ⢊య⫗┒ἲ࡟࠾ࡅࡿ㐃⥆࣮ࣞࢨᤲᘬ࡟ࡼࡿ⓶⭷ᙧᡂ࡬ࡢᙳ㡪▼ᕝ┴ᕤᴗヨ㦂ሙ ᶵᲔ㔠ᒓ㒊
ᒣୗ㡰ᗈ
䠍䠊┠ⓗ㻌
࣮ࣞࢨ⢊య⫗┒ἲ㸦௨ୗ 㸪LMD ࡜࿧ࡪ㸧࡟ࡼࡿ㔠ᒓ㐀ᙧ࡟࠾࠸࡚ࠊ㐃⥆ⓗ࡞࣮ࣞࢨᤲᘬ࡟ࡼࡿධ⇕ࡀᨺ⇕ࡉࢀࡎ࡟ṧࡾࠊࡑࢀ࡟ࡼࡗ࡚㐀ᙧ㒊࿘㎶ࡢᗘࡀୖ᪼ࡋ࡚⓶⭷ᙧᡂ࡟ᙳ㡪ࢆ୚࠼ࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿࠋࡑ

ࡇ࡛ᮏ◊✲࡛ࡣࠊࢧ࣮ࣔࣅ࣮ࣗ࢔ࢆ⏝࠸࡚㐀ᙧ㒊࿘㎶ࡢᗘศᕸᐃࢆ⾜࠸ࠊࡉࡽ࡟㐀ᙧ㒊᩿㠃ࡢほᐹ࡟ࡼࡾ⓶⭷ᙧᡂ࡬ࡢᙳ㡪ࢆㄪ࡭ࡓࠋ
䠎䠊ᐇ㦂᪉ἲ㻌ᐇ㦂࡟ࡣࠊᅗ 1 ࡟♧ࡍ㟷Ⰽ༙ᑟయ࣮ࣞࢨࢆ⏝࠸ࡓ LMD⿦⨨ࢆ౑⏝ࡋࡓࠋ⿦⨨ࡣࠊ࣮ࣞࢨຍᕤ࣊ࢵࢻ୰ᚰ࡟タ⨨㟷Ⰽ༙ᑟయ࣮ࣞࢨᦚ㍕/0'⿦⨨ࡢ࣮ࣞࢨຍᕤ࣊ࢵࢻ

ࡉࢀࡓཱྀᚄȭ0.4mm ࡢࣀࢬࣝ࠿ࡽ㔠ᒓ⢊ᮎࢆ࣮࣡ࢡ⾲㠃࡟ᑐࡋ࡚ᆶ┤࡟౪⤥ࡋࠊྠ᫬࡟ᩳࡵ᪉ྥ࠿ࡽ↷ᑕࡍࡿ࣮ࣞࢨග࡛ຍ⇕ࡋ࡞ࡀࡽ㐀ᙧࡍࡿ 1 㸧ࠋ࣮ࣞࢨගࡢἼ㛗ࡣ
445nm ࡛࠶ࡾࠊ6 ᮏࡢ࣮ࣞࢨගࡀ⢊ᮎ౪⤥ࣀࢬࣝ࡜ྠ㍈ࡢ఩⨨࡛㞟ගࡋ࡚↷ᑕࡉࢀࠊྜィฟຊࡣ᭱኱࡛ 100W ࡛

ࢧ࣮ࣔ
ࢢࣛࣇ࢕࣮

࠶ࡿࠋࡇࡢ࡜ࡁࠊࣅ࣮࣒ࢫ࣏ࢵࢺᚄࡣࠊȭ0.4mm ࡛࠶ࡿࠋ࣮࣡ࢡᅛᐃഃ࡟ࡣ XY ࢸ࣮ࣈࣝࡀタ⨨ࡉࢀ࡚࠾ࡾࠊ࣮࣡
ࢡࢆ⛣ືࡉࡏ࡞ࡀࡽ㐀ᙧࡀ⾜ࢃࢀࡿࠋᐇ㦂࡛ࡣࠊᅗ 2 ࡟♧ࡍࡼ࠺࡞࣮ࣞࢨᤲᘬ࡛ 10mm ゅࡢ㠃ࢆ⓶⭷ᙧᡂࡋࡓࠋ㐀ᙧ᮲௳ࡣࠊ࣮ࣞࢨගฟຊ 100Wࠊ
࣮ࣞࢨᤲᘬ㏿ᗘ 5mm/sࠊᤲᘬ㛫㝸 0.2mm ࡜ࡋࡓࠋᇶᮦ࡟

;<
ࢫࢸ࣮ࢪ

ᅗ 1

ᐇ㦂⿦⨨

ࡣᯈཌ 3mm ࡢ SUS304 ᯈࢆ⏝࠸ࠊ㔠ᒓ⢊ᮎ࡟ࡣᖹᆒ⢏ᚄ
30ȣm ࡢ SUS316L ࢆ⏝࠸࡚⢊ᮎ౪⤥㔞 13mg/s ࡛㐀ᙧࢆ⾜ࡗࡓࠋࡲࡓࠊ㐀ᙧ᫬࡟ࡣࠊ㉥እ⥺ࢧ࣮ࣔࢢࣛࣇ࢕(FLIR〇ࠊT1050sc)ࢆ⏝࠸࡚ࠊ㐀ᙧ㠃࡟ᑐࡋ࡚ᩳࡵ᪉ྥ࠿ࡽ
ᗘࣞࣥࢪ 0㹼650 ᗘ࡛㐀ᙧ㒊࿘㎶ࡢ

ᐃ

ᗘ

ᐃࢆ⾜ࡗ

ࡓࠋ

ᅗ 2 ࣮ࣞࢨᤲᘬ᪉ྥ

䠏䠊ᐇ㦂⤖ᯝ
ᅗ 3 ࡟㐀ᙧᚋࡢእほ෗┿ࢆࠊ㐀ᙧ㛤ጞ࠾ࡼࡧ⤊஢⟠ᡤ࡟࠾ࡅࡿ㐀ᙧ㒊࿘㎶ࡢ⇕⏬ീࢆᅗ 4 ࡟♧ࡍࠋࡇࡢ࡜
ࡁࠊ⇕⏬ീࡢゎᯒ࡟ࡣᨺᑕ⋡ 0.1 ࢆ⏝࠸ࡓࠋ⇕⏬ീ⤖ᯝ࠿ࡽ㐀ᙧ㛤ጞ࡟ẚ࡭⤊஢⟠ᡤࡢ⇕⏬ീࡢ᪉ࡀ㧗ࡢ⠊ᅖࡀᗈࡃ࡞ࡗ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡇࡢ⇕⏬ീ୰ኸ⥺ୖ࡟࠾ࡅࡿ
ᡤࡢ᭤⥺ࡢ࡯࠺ࡀ

ᗘศᕸࢢࣛࣇࢆᅗ 5 ࡟♧ࡍࠋ⤊஢⟠ᗘኚ໬ࡀ⦆ࡸ࠿࡛࠶ࡾࠊ࣮ࣞࢨᤲᘬ᪉ྥᚋ᪉࡟ࡑ

ࡢഴྥࡀ኱ࡁ࠸ࡇ࡜ࡀ࠸࠼ࡿࠋ௨ୖࡢ⇕⏬ീ⤖ᯝ࠿ࡽ㐃⥆࡞࣮ࣞࢨᤲ
ᘬ࡟ࡼࡾ⁫␃ࡋࡓ⇕ࡢᙳ㡪ࢆཷࡅࠊ㐀ᙧ㒊࿘㎶ᗘࡀୖ᪼ࡍࡿࡇ࡜ࢆ

☜ㄆࡋࡓࠋ

⤊஢
⟠ᡤ

㐀ᙧࢧࣥࣉࣝࢆษ᩿ࡋࠊ㐀ᙧ㛤ጞ㒊࠾ࡼࡧ⤊஢㒊࡟ࡘ࠸࡚᩿㠃ほᐹࢆ⾜ࡗࡓࠋ10㸣ࡋࡹ࠺㓟Ỉ⁐ᾮ୰࡛㟁ゎ࢚ࢵࢳࣥࢢࡋࡓᚋࡢࡑࢀࡒࢀ
ࡢ᩿㠃෗┿ࢆᅗ 6 ࡟♧ࡍࠋ⓶⭷ཌࡉࡣ㛤ጞ㒊࡛ 45ȣmࠊ⤊஢㒊࡛ 58
ȣm ࡜࡞ࡾࠊ⤊஢㒊ࡢ࡯࠺ࡀཌ࠸⓶⭷࡜࡞ࡗ࡚࠸ࡿࠋࡲࡓࠊ㐀ᙧ㛤ጞ

− 69 −Ⰽ㛤ጞ⟠ᡤᅗ 2 㐀ᙧ㠃ࡢእほ෗┿㒊࡛ࡣࠊᇶᮦ࡟ᑐࡋ࡚⓶⭷ࡀ⁐ࡅ㎸ࢇ࡛࠸ࡿࡀࠊ⤊஢㒊࡛ࡣࡑࡢ⁐ࡅ㎸ࡳࡀ࡯࡜ࢇ࡝ぢࡽࢀ࡞࠿ࡗࡓࠋ
௨ୖࡼࡾࠊ㐀ᙧ⤊஢㒊࡛ࡣᗘࡀ㧗ࡃ⓶⭷ࡀཌࡃ࡞ࡾᇶᮦ࡬ࡢ⁐ࡅ㎸ࡳࡀᑡ࡞ࡃ࡞ࡿࡇ࡜࠿ࡽࠊ࣮ࣞࢨග

ࡢ࢚ࢿࣝࢠ࣮྾཰ࡀᇶᮦࡼࡾ⢊ᮎ࡛㉳ࡇࡾࡸࡍࡃ࡞ࡗ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋ

(a) 㛤ጞ⟠ᡤ(b) ⤊஢⟠ᡤ
ᅗ 4 ࢧ࣮ࣔࢢࣛࣇ࢕࣮ࡢ⇕⏬ീ          ᅗ 5 ⇕⏬ീ୰ኸ⥺ୖ࡟࠾ࡅࡿᗘศᕸ             
‫ࡒخ‬
න໚

58ʅm

45ʅm

‫ࡒخ‬
න໚

0.1mm

0.1mm

‫ࡒخ‬

‫ࡒخ‬

(a) 㛤ጞ㒊                (b) ⤊஢㒊

ᅗ 6 㐀ᙧ㒊᩿㠃෗┿䠐䠊䜎䛸䜑㻌
ᮏ◊✲࡛ࡣࠊLMD ࡟࠾࠸࡚㐃⥆࡞࣮ࣞࢨᤲᘬ࡟ࡼࡿ⁫␃ࡋࡓ⇕ࡢᙳ㡪ࢆㄪ࡭ࡿࡓࡵࠊ㐀ᙧ㒊࿘㎶ࡢᕸࡃࠊᐃ࠾ࡼࡧ⓶⭷ᙧᡂᚋࡢ᩿㠃ほᐹࢆ⾜ࡗࡓࠋᐇ㦂ࡢ⤖ᯝࠊ㐀ᙧ㛤ጞ࡟ẚ࡭⤊஢⟠ᡤࡢ᪉ࡀ㧗ᗘኚ໬ࡢ໙㓄ࡀ⦆ࡸ࠿࡜࡞ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡲࡓࠊ

ᗘศ

Ⰽ⠊ᅖࡀᗈ

ᗘୖ᪼࡜࡜ࡶ࡟⓶⭷ࡀཌࡃ࡞ࡾᇶᮦ࡬ࡢ⁐ࡅ㎸ࡳࡀᑠࡉࡃ࡞ࡿഴྥࡀᚓࡽࢀࡓࠋ
䠑䠊ཧ⪃ᩥ⊩㻌1)ᒣୗ㡰ᗈ㸪⯚⏣⩏๎㸪ᮧ㇂እ༤㸪బ⸨㞝஧㸪ሯᮏ㞞⿱㸪㜿㒊ಙ⾜ࠊ㠃┤ᄇᑕᆺ࣮ࣞࢨࢡࣛࢵࢹ࢕ࣥࢢ⿦⨨㛤Ⓨࠊ᪥ᮏᶵᲔᏛ఍⏕⏘ࢩࢫࢸ࣒㒊㛛◊✲Ⓨ⾲ㅮ₇఍ㅮ₇ㄽᩥ㞟 (2016) 㸦ඹྠ◊✲ศ㔝㸸ຍᕤࣉࣟࢭࢫᏛศ㔝㸧− 70 −

− 71 −

࣮ࣞࢨษ᩿࡟࠾ࡅࡿࣅ࣮࣒࡜ᮦᩱࡢ┦஫స⏝࡞ࡽࡧ࡟࣮ࣞࢨຍᕤ⌧㇟ࡢゎ᫂୕㔜኱Ꮫ ኱Ꮫ㝔ᕤᏛ◊✲⛉ᑿᓮ ோᚿ㸪᫝ᕝ ὒᩯ㸪ᕝୖ ༤ኈ
1. ⥴ゝ
 ࣮ࣞࢨษ᩿ࡣ⏘ᴗ⏺࡛᭱ࡶ᪩ࡃ࠿ࡽྲྀࡾධࢀࡽࢀ㸪ࢩ࣮ࢺᮦࡢษ᩿ࢶ࣮ࣝ࡜ࡋ࡚ᗈࡃᐃ╔ࡋࡓ࣮ࣞࢨຍᕤ
ἲࡢ 1 ࡘ࡛࠶ࡿ㸬㏆ᖺ࡛ࡣ㸪ᯈཌ 25mm ⛬ᗘࡲ࡛ࡢཌ㗰ᯈ࡟ࡘ࠸࡚ࡣⰋዲ࡟࣮ࣞࢨษ᩿ࡀ⾜࠼ࡿࡼ࠺࡟࡞ࡗ
࡚࠾ࡾ㸪ᯈཌ 40mm ࡢ㌾㗰ᯈࢆษ᩿ྍ⬟࡞࣮ࣞࢨษ᩿ᶵࡶⓎ⾲ࡉࢀ࡚࠸ࡿ㸬୍⯡ⓗ࡟㸪࣮ࣞࢨษ᩿ࢆ⾜࠺ᯈཌࢆቑຍࡉࡏࡿ࡜ࡁ㸪࣮ࣞࢨฟຊࢆቑ኱ࡉࡏࡿࡇ࡜࡛ษ᩿ྍ⬟࡜࡞ࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ㸬ᐇ㝿㸪50mm ཌࡲ࡛ࡣ࣮ࣞࢨษ᩿࡟ࡼࡾᮦᩱࡢศ᩿ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ☜ㄆࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ษ᩿ᚋࡢษ᩿㠃ࡢရ㉁࡟
╔┠ࡍࡿ࡜㸪32mm ཌࡲ࡛ࡣⰋዲ࡞ษ᩿㠃ရ㉁ࡀᚓࡽࢀ࡚࠸ࡿࡀ㸪40mm ௨ୖࡢᯈཌ࡛ࡣᯈ⾲㠃࡟࠾࠸࡚ࣂ
࣮ࢽࣥࢢࡢⓎ⏕㸪࠾ࡼࡧᯈ⿬㠃࡛ࡣࢻࣟࢫࡢ௜╔ࡀほᐹࡉࢀ㸪ཌᯈࡢ࣮ࣞࢨษ᩿࡟࠾ࡅࡿษ᩿㠃ࡢရ㉁☜ಖࡀㄢ㢟࡜࡞ࡗ࡚࠸ࡿ㸬ࡑࡢࡓࡵ࡟ࡣ㸪࣮ࣞࢨษ᩿ࡢຍᕤ⌧㇟ࡢゎ᫂ࡀ㔜せ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬 ࡇࡇ࡛㸪㔠ᒓࡢ࣮ࣞࢨษ᩿࡟࠾࠸࡚㧗࠸ษ᩿ရ㉁ࢆ㐩ᡂࡍࡿࡓࡵ࡟ࡣ㸪ᾮ≧ࡢࢻࣟࢫࡀ⿕ຍᕤ≀ࡢ⿬㠃࠿ࡽࢫ࣒࣮ࢬ࡟᤼ฟࡉࢀࡿᚲせࡀ࠶ࡾ㸪ࡇࡢ࡜ࡁࡢ᤼ฟᣲືࡀ㸪ษ᩿ရ㉁࡟ᙳ㡪ࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ㸬୍᪉㸪ᾮ≧ࢻࣟࢫࡢ᤼ฟᣲືࡣษ᩿ࣇࣟࣥࢺࡢᙧ≧࡟ᙳ㡪ࢆཷࡅࡿ࡜⪃࠼ࡽࢀࡿࡇ࡜࠿ࡽ㸪࣮ࣞࢨษ᩿㒊ࢆ┤
᥋ࡑࡢሙほᐹࡍࡿࡇ࡜ࡀᮃࡲࡋ࠸㸬ࡋ࠿ࡋ㸪࣮ࣞࢨษ᩿ࡣษ᩿㏿ᗘࡀẚ㍑ⓗ㏿ࡃ㸪㔠ᒓࡀྍどගࢆ㏱㐣ࡋ࡞࠸ࡇ࡜࡞࡝࠿ࡽ㸪࣮ࣞࢨษ᩿㒊ࢆ┤᥋ࡑࡢሙほᐹࡍࡿࡇ࡜ࡣᅔ㞴࡛࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪㧗㍤ᗘ X ⥺㏱㐣ᆺ⁐᥋᥋ྜᶵᵓ 4 ḟඖྍど໬ࢩࢫࢸ࣒ࢆ⏝࠸࡚㸪ཌ㗰ᯈࡢ࣮ࣞࢨษ᩿୰࡟࠾ࡅࡿษ᩿㒊ࡢࡑࡢሙほᐹࢆᐇ᪋ࡋ㸪ษ᩿᮲௳ࡀษ᩿ࣇࣟࣥࢺᙧ≧࡟࠾ࡼࡰࡍᙳ㡪࡟ࡘ࠸᳨࡚ウࡋࡓ㸬
2. ᐇ㦂᪉ἲ ౪ヨᮦ࡜ࡋ࡚㸪ᯈཌ 9mm ࡢ⁐᥋ᵓ㐀⏝ᅽᘏ㗰ᮦ SM490 ࢆ⏝࠸ࡓ㸬໬Ꮫ⤌ᡂࢆ Table 1 ࡟♧ࡍ㸬ヨ㦂∦ᑍἲࡣ 6120mm
࡜ࡋ㸪ࣆ࢔ࢩࣥࢢࡢ௦᭰࡜ࡋ࡚ȭ2 ࡢ✰ࢆษ᩿㛤ጞⅬ࡟タࡅࡓ㸬ࡲࡓ㸪ヨ㦂∦ࡢ୧➃࡟ȭ2.2 ࡢ✰ࢆ㛤ࡅ㸪ࡑࢀࡽࡢ✰ࢆ౑⏝ࡋ࡚ヨ㦂∦ࢆ Fig.1 ࡟♧ࡍࡼ࠺࡞ほᐹ⏝἞ල࡟ᅛᐃࡋࡓ㸬࡞࠾㸪ษ᩿๓࡟ヨ㦂∦⾲㠃ࢆ࢚ࢱࣀ࣮࡛ࣝ⬺⬡ࡋ㸪ヨ㦂∦ࡢ㛗ᡭ᪉ྥ࡟࣮ࣞࢨษ᩿ࢆ⾜ࡗࡓ㸬 ᐇ㦂⿦⨨ࡢᴫ␎ࢆ Fig.2 ࡟♧ࡍ㸬࣮ࣞࢨษ᩿⿦⨨࡜ࡋ࡚㸪
16kW ࢹ࢕ࢫࢡ࣮ࣞࢨⓎ᣺ჾ࠾ࡼࡧษ᩿࣊ࢵࢻࢆ౑⏝ࡋࡓ㸬࡞࠾㸪࣮ࣞࢨࡢἼ㛗ࡣ 1030nm㸪BPP ࡣ 8mm*mrad㸪ࣇ࢓࢖ࣂ࣮ᚄࡣ 200ȝm㸪ࣞࣥࢬ↔Ⅼ㊥㞳ࡣ 200mm ࡛࠶ࡿ㸬 ࣮ࣞࢨษ᩿᮲௳࡜ࡋ࡚㸪࢔ࢩࢫࢺ࢞ࢫ࡟ O2 ࢆ⏝࠸㸪࣮ࣞࢨ
ฟຊ 5kW㸪࢔ࢩࢫࢺ࢞ࢫᅽຊ 0.5MPa㸪࠾ࡼࡧ↔Ⅼࡣࡎࡋ㊥㞳+0.5mm ࡣ୍ᐃ࡜ࡋ㸪ษ᩿㏿ᗘࢆ 1.0㹼3.25 m/min㸪ࣀࢬࣝࢠࣕࢵࣉࢆ 2㹼3mm ࡜ኚ໬ࡉࡏ࡚ᐇ㦂ࢆ⾜ࡗࡓ㸬ࡑࡢ㝿㸪ษ᩿㛗 70mm ࡣ୍ᐃ࡜ࡋࡓ㸬ࡲࡓ㸪࣮ࣞࢨษ᩿㒊ࡢ㏱どほᐹ⿦⨨࡜ࡋ࡚㸪㧗㍤ᗘ X ⥺㏱㐣ᆺ⁐᥋᥋ྜᶵᵓ 4 ḟඖྍど໬ࢩࢫࢸ࣒ࡢ࠺ࡕ㸪࣐࢖ࢡࣟࣇ࢛࣮࢝ࢫ X ⥺Ⓨ⏕⿦⨨㸦᭱㧗ゎീᗘ
4ȝm㸪᭱኱㟁ᅽ 230kV㸪᭱኱㟁ὶ 1mA㸧ࢆ౑⏝ࡋ㸪ヨ㦂∦ࡢഃ᪉࠿ࡽ࣮ࣞࢨษ᩿㒊ࢆ 2 ḟඖ࡛ほᐹࡋࡓ㸬− 72 −

3. ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ ษ᩿㏿ᗘ 1.5m/min㸪ࣀࢬࣝࢠࣕࢵࣉ 3mm ࡛࣮ࣞࢨษ᩿ࡋ
ࡓ㝿ࡢ㸪ษ᩿㛗୰ኸ௜㏆࡟࠾ࡅࡿ࣮ࣞࢨษ᩿㒊ࡢ X ⥺㏱㐣ほᐹ⏬ീ࠾ࡼࡧษ᩿ᚋࡢษ᩿㠃ࢆ Fig.3 ࡟♧ࡍ㸬ྠᅗ(a)࡟࠾࠸࡚㸪⅊Ⰽࡢ▴ᙧࡀヨ㦂∦࡛࠶ࡾ㸪ษ᩿ࡣྑ᪉ྥ࡟ྥ࠿ࡗ࡚⾜ࢃࢀ࡚࠸ࡿ㸬X ⥺ࡣᐦᗘࡀᑠࡉ࠸⟠ᡤ࡯࡝㏱㐣ࡋࡸࡍ࠸ࡓࡵ㸪ヨ㦂∦ࡢ࠺ࡕษ᩿ࡉࢀ࡚࠸࡞࠸⟠ᡤ࡜࣮࢝ࣇ㒊࡛ࡣ⏬ീࡢ⅊Ⰽࡢ⃰ᗘࡀ␗࡞ࡿ㸬ࡑࡢࡓࡵ㸪ษ᩿ࣇࣟࣥࢺࢆഃ᪉࠿ࡽほᐹࡋࡓ㝿ࡢ 2 ḟඖᙧ≧ࢆᢕᥱࡍࡿࡇ࡜ࡀ࡛ࡁࡓ㸬 ࡲࡓ㸪ྠᅗ(b)ࢆぢࡿ࡜㸪ษ᩿㠃ࡣᯈ⾲㠃࠿ࡽᯈཌ᪉ྥ࡟ྥ
࠿ࡗ࡚ 3 ᒙ࡟ศ࠿ࢀ࡚࠸ࡿࡼ࠺࡟ぢ࠼㸪≉࡟᭱ୗᒙ࡟ࡣࢻࣟ
ࢫࡀ௜╔ࡋ࡚࠸ࡓ㸬୍᪉㸪ྠᅗ(a)ᕥୗࡢ⅊Ⰽࡢ⃰ᗘࡀ㧗࠸㒊ศ࡟࠾࠸࡚㸪ᾮ≧ࢻࣟࢫࡀ᤼ฟࡉࢀࡎ࡟ṧ␃ࡋ࡚࠸ࡿᵝᏊࡀ
ほᐹࡉࢀࡓࡓࡵ㸪᤼ฟࡉࢀ࡞࠿ࡗࡓࢻࣟࢫࡀ(b)ࡢࡼ࠺࡟ษ᩿
㠃࡟௜╔ࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬 ḟ࡟㸪ඛ࡯࡝ࡢษ᩿᮲௳࡟࠾࠸࡚ษ᩿㏿ᗘࡢࡳࢆ 2.5m/min࡟ቑຍࡉࡏࡓ㝿ࡢ㸪ษ᩿㛗୰ኸ௜㏆࡟࠾ࡅࡿ࣮ࣞࢨษ᩿㒊ࡢX ⥺㏱㐣ほᐹ⏬ീ࠾ࡼࡧษ᩿ᚋࡢษ᩿㠃ࢆ Fig.4 ࡟♧ࡍ㸬ྠᅗ(a)࡜ Fig.3(a)ࡢ X ⥺㏱㐣ほᐹ⏬ീ࡟࠾࠸࡚ษ᩿ࣇࣟࣥࢺࡢ
ᙧ≧ࢆẚ㍑ࡍࡿ࡜㸪ษ᩿㏿ᗘࡀ㏿࠸ Fig.4(a)ࡢ᪉ࡀ㸪ษ᩿ࣇࣟࣥࢺࡀᚋ᪉࡟㐜ࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡲࡓ㸪Fig.3 ࡢ࡜ࡁࡢࡼ࠺࡟ᯈୗ㒊࡟࠾ࡅࡿ⁐⼥㔠ᒓࡢṧ␃㸪࠾ࡼࡧษ᩿㠃࡬ࡢࢻࣟࢫ௜╔ࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓ㸬 ௨ୖࡼࡾ㸪ษ᩿㏿ᗘࡢቑຍ࡟ࡼࡾษ᩿ࣇࣟࣥࢺᙧ≧ࡀኚ໬ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡑࡇ࡛㸪ษ᩿㏿ᗘ࡟ࡼࡾษ᩿ࣇࣟ
ࣥࢺᙧ≧ࡀኚ໬ࡍࡿ⌧㇟࡟ࡘ࠸᳨࡚ウࡍࡿࡓࡵ㸪ࡑࡢᐃ㔞໬ࢆヨࡳࡓ㸬Fig.5 ࡢࡼ࠺࡟ษ᩿ࣇࣟࣥࢺୖ㒊ࡢゅᗘ(Cutting
front angle)㸪ษ᩿ࣇࣟࣥࢺୗ㒊ࡢ㐜ࢀゅ(Lag angle)࠾ࡼࡧ㐜ࢀ㔞(Lag distance)ࢆࡑࢀࡒࢀ ᐃࡋࡓ㸬
 Fig.6 ࡟ࣀࢬࣝࢠࣕࢵࣉ 2mm ࡲࡓࡣ 3mm ࡟࠾ࡅࡿ㸪ษ᩿㏿ᗘ࡜ษ᩿ࣇࣟࣥࢺୖ㒊ࡢゅᗘ㸪㐜ࢀゅ࠾ࡼࡧ㐜ࢀ㔞࡜ࡢ㛵ಀࢆ♧ࡍ㸬ࡲࡎ㸪㟷Ⰽ࡛♧ࡍษ᩿ࣇࣟࣥࢺୖ㒊ࡢゅᗘ࡟ὀ┠ࡍࡿ࡜㸪ษ᩿㏿ᗘ࡟ࡼࡽࡎ 5r⛬ᗘ࡛࡯ࡰ୍ᐃ࡜࡞ࡗ࡚࠸ࡿ㸬ḟ࡟㸪㐜ࢀゅ㸦㉥Ⰽ㸧࠾ࡼࡧ㐜ࢀ㔞㸦⥳Ⰽ㸧࡟ὀ┠ࡍࡿ࡜㸪
ษ᩿㏿ᗘࡢቑຍ࡜ࡶ࡟඲యⓗ࡟୧⪅ࡀቑຍࡋ࡚࠸ࡿ㸬ࡇࢀࡣ㸪ษ᩿ࣇࣟࣥࢺୖ㒊࡛ࡣ࣮ࣞࢨ࡟ࡼࡿ⁐⼥ࡀᨭ㓄ⓗ࡛㸪ୗ㒊࡛ࡣୖ㒊࠿ࡽ⛣ືࡋ࡚ࡁࡓࢻࣟࢫ࡜㓟⣲࢞ࢫ࡟ࡼࡿ⇞↝స⏝࡟ࡼࡿ⁐⼥ࡀᨭ㓄ⓗ࡛࠶ࡾ㸪࣮ࣞࢨ࡟ࡼࡿ⁐⼥࡟ᑐࡋ⇞↝స⏝࡟ࡼࡿ⁐⼥ࡀ㐜ࢀࡿࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ษ᩿㏿
ᗘ 2m/min ࢆ㉸࠼ࡿ࡜㸪୧⪅ࡢ㐜ࢀࡣᛴ⃭࡟ቑຍࡋ࡚࠸ࡿ㸬ࡇࢀࡣ㸪㕲ࡢ⇞↝㏿ᗘࡀ 2m/min ⛬ᗘ࡛࠶ࡿࡇ࡜
࡟㛵ಀࡋ࡚࠸ࡿ࡜ᛮࢃࢀࡿ㸬୍᪉㸪ྠ⛬ᗘࡢษ᩿㏿ᗘ࡟࠾ࡅࡿࣀࢬࣝࢠࣕࢵࣉࡢኚ໬࡟ࡼࡿษ᩿ࣇࣟࣥࢺᙧ
≧ࡢᕪࡣᑠࡉ࠿ࡗࡓ㸬㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧− 73 −

࣮ࣞࢨຍᕤ࡟࠾ࡅࡿࣅ࣮࣒࡜ᮦᩱࡢ┦஫స⏝࡞ࡽࡧ࡟࣮ࣞࢨຍᕤ⌧㇟ࡢゎ᫂-࣮ࣞࢨࢆ⏝࠸ࡓ㔠ᒓ 3D ࣉࣜࣥࢱ㐀ᙧ࡟࠾ࡅࡿ㔠ᒓෆ㒊ᣲືࡢ X ⥺㏱どほᐹᅜ❧◊✲㛤Ⓨἲே ⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ℩Ώ ┤ᶞ
㸯㸬┠ⓗ㏆ᖺ 3D ࣉࣜࣥࢱ࡟ࡼࡿ㒊ရࡸ〇ရࡢ┤᥋ 3 ḟඖ㐀ᙧᢏ⾡ࡀὀ┠ࡉࢀࠊᶞ⬡ࡸ㔠ᒓ࡞࡝ᵝࠎ࡞ᮦᩱࡀ㐀ᙧ࡛ࡁࡿ1)ࠋ㐀ᙧࡉࢀࡿᮦᩱࡣ⢊ᮎࡸ࣡࢖ࣖ࡞࡝ᵝࠎ࡞ᙧ࡛ຍᕤⅬ࡟౪⤥ࡉࢀࠊ
ຍᕤⅬ࡛ࡣ࣮ࣞࢨ➼ࡢ⇕※࡛㐀ᙧࡋ࡚࠸ࡿࠋ

ࡑࡢ୰࡛ࡶ࣮ࣞࢨࢆ⇕※࡜ࡋࡓ࣡࢖ࣖ౪⤥ᆺࡢ3D ࣉࣜࣥࢱࡣᮦᩱࡢ౪⤥ࡀ㎿㏿࡛኱ࡁ࡞య✚ࡢ≀యࢆ㏿ࡸ࠿࡟㐀ᙧࡋ࡚࠸ࡃຍᕤ࡟ྥ࠸࡚࠸ࡿࠋࡋ࠿ࡋࠊ㐀ᙧ୰࡟౪⤥ࡉࢀࡓ࣡࢖ࣖࡀ࡝ࡢࡼ࠺࡟㐀ᙧ⫗࡟࡞ࡗ࡚࠸ࡃ࠿ࠊ㐀ᙧ㒊ศࡢෆ㒊ࡢᣲື࡟ࡘ࠸࡚ࡣほᐹࡀᅔ㞴࡛࠶ࡿࡓࡵ୙᫂࡞Ⅼࡀከ࠸ࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊX ⥺㏱ど⿦⨨ࢆ⏝࠸࡚㔠ᒓ࣡࢖ࣖ౪⤥ᆺࡢ 3D ࣉࣜࣥࢱࡢ㐀ᙧ㐣⛬ࡢ㔠ᒓෆ㒊ᣲືࢆࣜ࢔ࣝࢱ࢖࣒ほᐹࡋ࡚ゎ᫂ࢆヨࡳࡓࠋ㸰㸬◊✲᪉ἲ
㔠ᒓ࣡࢖ࣖ౪⤥ᆺ 3D ࣉࣜࣥࢱࡢ㐀ᙧ୰ࡢෆ㒊ᣲືࢆほᐹࡍࡿࡓࡵ࡟ࠊ᥋ྜ⛉Ꮫ◊✲ᡤ࡟࠶ࡿ X ⥺㏱ど⿦⨨࡜ࢹ࢕ࢫࢡ࣮ࣞ
ࢨࢆ⏝࠸ࠊࡑࡢ⿦⨨ෆ࡛࣡࢖ࣖ౪⤥ࡀ࡛ࡁࡿࡼ࠺࡟⏘⥲◊࠿ࡽ࣡࢖ࣖ౪⤥ᶵࢆᣢࡕ㎸ࡳᵝࠎ࡞㐀ᙧ᮲௳ୗ࡛㐀ᙧ୰ࡢෆ㒊ᣲືࢆほᐹࡋࡓࠋほᐹ⿦⨨ࡢᴫ␎ᅗࢆᅗ
ᅗ1࡟♧ࡋࠊほᐹࡋࡓຍᕤ᮲௳ࢆ⾲⾲ 1 ࡟♧ࡍࠋᅗ 1 ࣡࢖ࣖ౪⤥ᆺ㐀ᙧ᫬ࡢෆ㒊ᣲືほᐹ⏝ X ⥺㏱ど⿦⨨ࡢᴫ␎ᅗ

⾲ 1 ᮏ◊✲࡛⏝࠸ࡓ✚ᒙຍᕤ᮲௳࡜ᮦᩱ
Laser power (kW)2.5, 3.5, 5.0

Scanning speed (m/min)

1.5

Defocus condition (mm)0, +5Specimen

TP340 (6mmt), SUS304 (6mmt)

Wire material࢖ࣥࢥࢿࣝ⏝⁐᥋࣡࢖ࣖ(TR-82; 1.2mmȭ), ࢳࢱࣥ⏝⁐᥋࣡࢖ࣖ(WT-2; 1.2mmȭ), ࢫࢸࣥࣞࢫ⏝⁐᥋࣡࢖ࣖ(MG309L; 1.2mmȭ), Ⅳ⣲㗰⏝⁐᥋࣡࢖ࣖ(MG-S50; 1.2mmȭ)Wire feeding speed (m/min)

3.15, 6.3

௒ᅇᇶᯈ࡜ࡋ࡚⏝࠸ࡓᮦᩱࡣᕤᴗ⏝⣧ࢳࢱࣥ TP340 ࠾ࡼࡧࢫࢸࣥࣞࢫ㗰 SUS304 ࡛࠶ࡿࠋ㐀ᙧึᒙࡢෆ㒊ᣲືࢆほᐹࡍࡿࡓࡵ࡟ࠊX ⥺㏱㐣᪉ྥ࡟ⷧ࠸(6mm ཌ)ᙧ≧࡟ࡋࡓࠋ౪⤥ࡍࡿ࣡࢖ࣖࡣධᡭࡀᐜ᫆࡞⁐᥋࣡࢖ࣖࢆ⏝࠸ࡓࡢ࡛┤ᚄ 1.2mm ࡢ࣡࢖ࣖࢆ⏝࠸ࡓࠋ࣡࢖ࣖࡢ✀㢮ࡣᇶᯈᮦࡢྠ✀ᮦ⁐᥋࡟⏝࠸ࡿࡼ࠺࡞࣡࢖ࣖࢆ⏝ពࡋࡓࡀࠊX ⥺ほᐹ୰ࡢ⃰ῐ࡞࡝ࡢຠᯝࡀᮇᚅ࡛ࡁࡿࡇ࡜࠿ࡽࠊ࢖ࣥࢥࢿࣝ➼ࡢ␗✀ᮦ࡟࡞ࡿ࣡࢖ࣖࡶ⏝࠸࡚ほᐹࡋࡓࠋほᐹᐇ㦂࡛ࡣ࣮ࣞࢨࡢ↷ᑕ࡜࣡࢖ࣖࡢ౪⤥ࠊX-Y ࢸ࣮ࣈࣝࡢືసࡀྠᮇࡋ࡚࠸ࡿࡇ࡜ࡀ⫢ᚰ࡞ࡢ࡛ࠊ࣮ࣞࢨࡢ
↷ᑕ㛤ጞ࡜࣡࢖ࣖࡢ౪⤥㛤ጞࢆࢸ࣮ࣈࣝࡢືస࡟ࢩࣥࢡࣟࡉࡏ࡚ᐇ㦂ࢆ⾜ࡗࡓࠋ㸱㸬⤖ᯝᮏ◊✲࡛⏝࠸ࡓ࣮ࣞࢨ↷ᑕࡣࠊᇶᯈ࡟ᑐࡋ࡚࣮ࣞࢨࡣⰋࡃ㞟ගࡉࢀࡓ≧ែ࡛ 2.5kW ௨ୖࡢฟຊ࡛↷ᑕࡉࢀ࡚࠸
ࡓࡢ࡛ࠊ࣡࢖ࣖࡢ౪⤥ࡀ↓࠸ሙྜࡣ࣮࣮࢟࣍ࣝࡀᙧᡂࡉࢀ࡚῝⁐㎸ࡳ⁐᥋࡟࡞ࡿ↷ᑕ࡛࠶ࡗࡓࠋࡋ࠿ࡋࠊ3D 㐀ᙧⓗ࡟ࡣ⁐㎸ࡳ῝ࡉࢆ✌ࡄ↷ᑕࡼࡾࡶࠊ⁐㎸ࡳࢆᢚ࠼࡚✚ᒙࡍࡿ⫗ࡢᒙࢆཌࡃࡍࡿ✚ᒙࡀồࡵࡽࢀࡿࠋࡑࡇ࡛ࠊ࣡࢖
ࣖࡢ౪⤥㔞ࢆኚ໬ࡉࡏ࡚⁐㎸ࡳ῝ࡉࢆㄪᩚࡋࠊ῝⁐㎸ࡳ᫬ࡢᣲື࡜⁐㎸ࡳࡀᑠࡉ࠸᫬ࡢᣲືࢆẚ㍑ࡋࡓࠋ

− 74 −

ࡲࡎࠊ࣮ࣞࢨฟຊ
3.5kWࠊ࣡࢖ࣖ㏿ᗘ
3.15m/min ࡢ ᫬ࡢ௦
⾲ⓗ X ⥺㏱ど⏬㠃࡜ᅗ 2 ࡟᩿㠃࣐ࢡࣟࢆᅗ
♧ࡍࠋຍᕤ୰ࡢヨ㦂∦ෆ㒊࡟ࡣ࣮ࣞࢨ↷ᑕ㒊࡟࣮࣮࢟࣍ࣝࡀほᐹࡉࢀࠊ᫬ࠎ࣮࢟
࣮࣍ࣝᗏ㒊࠿ࡽẼἻ
ࡀⓎ⏕ࡋ࡚ࣈ࣮ࣟ࣍
࣮ࣝ࡟࡞ࡗ࡚࠸ࡿࡇ

ᅗ 2 ࣮ࣞࢨฟຊ 3.5kWࠊ࣡࢖ࣖ㏿ᗘ 3.15m/min ࡢ᫬ࡢ X ⥺ほᐹ⤖ᯝ࡜᩿㠃≧ែ࡜ࡀ☜ㄆࡉࢀࡓࠋࡇࡢࡼ࠺࡟࣮࣮࢟࣍ࣝࡀᙧᡂࡋࠊࡑࡇ࠿ࡽⓎ⏕ࡋࡓẼἻࡀ࣏ࣟࢩࢸ࢕࡟࡞ࡿᣲືࡣࠊ࣮ࣞࢨ⁐᥋᫬ࡢ࣏ࣟࢩࢸ࢕⏕ᡂᣲືࡑࡢࡶࡢ 2)࡛࠶ࡾࠊᅗ 2 ࡢ᫬ࡢ㐀ᙧ≀ෆ㒊ࡢᣲືࡣ࣮ࣞࢨ⁐᥋ࡢ⁐⼥ụෆᣲື࡜㢮ఝ࡛࠶ࡗࡓࠋࡇࡢࡼ࠺࡟࣮࣮࢟࣍ࣝࡀ☜ㄆࡉࢀࡿ᮲௳ࡣ࣮ࣞࢨฟຊࡀ㧗࠸ሙྜࡸ࣡࢖ࣖࡢ㏦ࡾ㏿ᗘࡀ㐜࠸ሙྜ࡟☜ㄆࡉࢀࡓࠋḟ࡟ࠊ࣮ࣞࢨฟຊ 3.5kWࠊ࣡࢖ࣖ㏿ᗘ 6.3m/min ࡢ᫬ࡢᣲືࢆほᐹࡋ࡚ẚ㍑ࡋࡓࠋ௦⾲ⓗ X ⥺㏱ど⏬㠃࡜᩿㠃࣐ࢡࣟࢆᅗ
ᅗ 3 ࡟♧ࡍࠋࡇࡕࡽࡣ࣡࢖ࣖࡀ࡯ࡰಸࡢ
㏿ᗘ࡛㏦ࡽࢀ࡚࠸ࡿࡓ
ࡵ㐀ᙧࡉࢀ࡚࠸ࡿ⫗ࡀ㧗ࡃ┒ࡾୖࡀࡗ࡚࠸ࡿࠋ
ࡑࡢࡓࡵࠊ᩿㠃෗┿ࢆぢ࡚ࡶ⁐㎸ࡳ῝ࡉࡣὸࡃࠊ
㐀ᙧ࡜ࡋ࡚ࡣ⌮᝿ⓗ࡞᮲௳ࡢึᒙ࡜ゝ࠼ࡿࠋࡇࡢ᫬ࡢ X ⥺ほᐹ⤖ᯝࡣ࣮ࣞࢨ↷ᑕ఩⨨࡟࣮࣮࢟࣍ࣝࡢᙧᡂࡣ☜ㄆࡉ

ᅗ 3 ࣮ࣞࢨฟຊ 3.5kWࠊ࣡࢖ࣖ㏿ᗘ 6.3m/min ࡢ᫬ࡢ X ⥺ほᐹ⤖ᯝ࡜᩿㠃≧ែࢀࡎࠊẼἻࡢⓎ⏕ࡶ☜ㄆࡉࢀ࡞࠿ࡗࡓࠋ
㸲㸬⤖ㄽࡇࢀࡽࡢ⤖ᯝࡼࡾࠊ࣡࢖ࣖ౪⤥ᆺࡢ㐀ᙧ࡟࠾࠸࡚ࡶࠊ࣮ࣞࢨ⁐᥋ࡢሙྜ࡜ྠࡌࡃࠊ㔠ᒓෆࡢᣲືࡀ࣮࣮࢟࣍ࣝࡢ
᭷↓࡛኱ࡁࡃ␗࡞ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊ㐀ᙧ⫗ෆ࡟᫬ࠎⓎ⏕ࡍࡿࣈ࣮࣮ࣟ࣍ࣝࡢ⏕ᡂ࡟ࡘ࠸࡚ࡶࠊ࣮࣮࢟࣍
ࣝᣲື࡟⏤᮶ࡍࡿⓎ⏕࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋཧ⪃ᩥ⊩1) F. Rengier, et. al. “3D printing based on imaging data: review of medical applications”, International Journal of Computer
Assisted Radiology and Surgery, Volume 5, Issue 4, (2010), P.335-341
2) ℩Ώ┤ᶞࠊ∦ᒣ⪷஧ࠊᯇ⦖ᮁࠊ
ࠕ࢔࣑ࣝࢽ࣒࢘ྜ㔠࣮ࣞࢨ⁐᥋᫬ࡢ࣏ࣟࢩࢸ࢕⏕ᡂᶵᵓࡢゎ᫂࡜ࡑࡢᢚไἲࠖ
ࠊ⁐᥋Ꮫ఍ㄽᩥ㞟 Vol. 18 No. 2, (2000), p.243-255(ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝)− 75 −

࣮ࣞࢨ⁐᥋᫬ࡢ⁐‫ࡢ‮‬ὶື⌧㇟ࡢほᐹᮾி኱Ꮫ ኱Ꮫ㝔ᕤᏛ⣔◊✲⛉㛗⸨ ᆂ௓㸪▮ᓥ ⏤ᇶ㸪୰ᑿ ᨻஅ
1. ⥴ゝ
 ࣁ࢖ࣃ࣮࣮࣡ࣞࢨࢆ⏝࠸ࡓ࣮ࣞࢨ⁐᥋ࡣ㸪ࡑࡢ▷࠸ࢧ࢖ࢡࣝࢱ࢖࣒ࡢ࣓ࣜࢵࢺ࠿ࡽ㸪⮬ື㌴࡞࡝ࡢ㍺㏦ᶵ
ჾ࡟㏆ᖺࡲࡍࡲࡍ⏝࠸ࡽࢀࡿࡼ࠺࡟࡞ࡗ࡚ࡁ࡚࠸ࡿ㸬≉࡟㸪࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡣ㟁Ẽ᢬ᢠࡀᑠࡉ࠸ࡓࡵࢫ࣏
ࢵࢺ⁐᥋ࡢ฼⏝ࡀᅔ㞴࡛࠶ࡾ㸪࠿ࡘᚑ᮶ࡢᦶ᧿᧠ᢾ᥋ྜ㸦FSW㸧ࡢࢧ࢖ࢡࣝࢱ࢖࣒పῶࡢ㝈⏺࠿ࡽ㸪࣮ࣞࢨ⁐᥋ࡢ࣓ࣜࢵࢺࡀ኱ࡁ࠸㸬ࡋ࠿ࡋ㸪࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡣ㸪㕲⣔ᮦᩱ࡟ẚ࡭࡚⼥Ⅼ௨ୖࡢ⢓ᗘపୗࡀⴭࡋࡃ㸪࣮࣮࢟࣍ࣝ࠾ࡼࡧ⁐‫⇕ࡢ‮‬ὶືࢆᏳᐃ࡟ࡍࡿࡇ࡜ࡀ㞴ࡋ࠸㸬ࡑࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࡢࡓࡵ࡟ࡣ㸪ὶື⌧㇟ࢆほᐹࡍࡿᚲせࡀ࠶ࡿ㸬ᮏ◊✲ࡢ┠ⓗࡣ㸪⣧ Fe ࠾ࡼࡧ⣧ Al ᇶᯈࢆ⏝࠸࡚㸪࣮ࣞࢨ↷ᑕ᫬ࡢ࣮࣮࢟࣍ࣝ࠾ࡼࡧ
⇕ὶືࢆ㧗㏿ᗘ X ⥺ほᐹࡋ㸪ὶື⌧㇟ࢆゎ᫂ࡍࡿࡇ࡜࡛࠶ࡿ㸬
2. ᐇ㦂᪉ἲ ౪ヨᮦ࡜ࡋ࡚㸪ᖜ 3 mm㸪㧗ࡉ 5 mm ࡢ⣧ Fe㸪࠾ࡼࡧᖜ 5 mm㸪㧗ࡉ 4 mm ࡢ⣧ Al ࡢᇶᯈࢆ⏝࠸ࡓ㸬῝ࡉ 1
mm ࡢ఩⨨࡟┤ᚄ 1 mm ࡢ Pt ⢏Ꮚࢆࢺ࣮ࣞࢧ࡜ࡋ࡚ᇙ㎸ࢇࡔ㸬࣮ࣞࢨ⿦⨨࡜ࡋ࡚㸪2 kW ࣇ࢓࢖ࣂ࣮ࣞࢨ㸦Ἴ
㛗 1070 nm㸧ࢆ⏝࠸㸪15rࡢゅᗘ࠿ࡽ↷ᑕ㸪ࢫ࣏ࢵࢺᚄ 0.4 mm㸪ࢫ࢟ࣕࣥ㏿ᗘࡣ 2.2 m/min (37 mm/s)࡜ࡋࡓ㸬࣮࣮࢟࣍ࣝᙧ≧࠾ࡼࡧࢺ࣮ࣞࢧࡢືࡁࢆ㧗㏿ᗘ X ⥺࣓࡛࢝ࣛ 2 ᪉ྥ࠿ࡽほᐹࡍࡿࡇ࡜࡛㸪⇕ὶືࡢ 3 ḟඖほᐹࢆ⾜ࡗࡓ㸬
3. ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ
 Fig. 1 ࡟㸪⣧ Fe ࠾ࡼࡧ⣧ Al ౪ヨᮦࡢ࣮ࣞࢨ↷ᑕᚋࡢ⇕ᙳ㡪㒊㸦HAZ㸧ࡢほᐹ⤖ᯝࢆ♧ࡍ㸬HAZ ࡢᖜ࡜῝ࡉࡣ㸪⣧ Fe ࡟ࡘ࠸࡚ࡣ㸪ࡑࢀࡒࢀ⣙ 1.0㸪3.5 mm㸪⣧ Al ࡟ࡘ࠸࡚ࡣ㸪ࡑࢀࡒࢀ⣙ 3.5, 4 mm㸪࡛࠶ࡗࡓ㸬ࡓࡔࡋ㸪⣧ Al ࡟ࡘ࠸࡚ࡣ㸪ᇶᯈୗ㠃ࡲ࡛㐩ࡋ࡚࠸ࡿ㒊ศࡶ࠶ࡾ㸪࣏ࣟࢩࢸ࢕ࡶ㸪┤ᚄ᭱኱ 1 mm ⛬ᗘࡢࡶࡢࡀ
⣙ 3 mm 㛫㝸࡛Ꮡᅾࡋ㸪Ᏻᐃ࡞⁐⼥࡛ࡣ࡞࠿ࡗࡓ㸬Fig. 2 ࡟㸪ࢺ࣮ࣞࢧ⢏Ꮚࡢ⿵㊊⤖ᯝࢆ♧ࡍ㸬⣧ Fe ࡟ࡘ࠸࡚ࡣ㸪⣙ 1 mm ࡢ⠊ᅖࢆ ࢆᕳࡃࡼ࠺࡟⛣ືࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬⣧Al ࡟ࡘ࠸࡚ࡣ㸪᭱኱⣙ 2.5 mm ᚋ᪉ࡲ࡛⛣ືࡋ࡚࠸ࡿ㸬୍᪉㸪⛣ື㏿ᗘࡣ㸪⣧ Fe ࡀᖹᆒ⣙ 200 mm/s ࡛࠶ࡗ

Fig. 1 ⥺↷ᑕᚋࡢ⣧ Fe, Al ࡢ᩿㠃ගᏛ㢧ᚤ㙾ീ㸦ࡑࢀࡒࢀ㸪◊☻ᚋ࡟ࣆࢡࣜࣥ㓟㸪ࢣ࣮ࣛヨ⸆࡛࢚ࢵࢳࣥࢢ㸧ࡓࡢ࡟ᑐࡋ㸪⣧ Al ࡣᖹᆒ 120 mm/s
࡛࠶ࡗࡓ㸬ࡇࢀࡽࡢ⤖ᯝ࠿ࡽ㸪⣧ Al
ࡣ⣧ Fe ࡟ẚ࡭࡚㸪⁐⼥᫬㛫ࡀ㛗࠸㸪ࡲࡓࡣ⁐‫ࡢ‮‬⢓ᗘࡀప࠸ࡓࡵ㸪⁐‫‮‬ෆ㒊ࡢὶື㔞ࡣ኱ࡁ࠸ࡶࡢࡢ㸪ࡑࡢ
ὶື㏿ᗘࡣ኱ࡁ࠸ࢃࡅ࡛ࡣ࡞࠸ࡇ࡜
ࡀࢃ࠿ࡗࡓ㸬࣮࣮࢟࣍ࣝᙧ≧࡜ࡢ┦ᑐ఩⨨ࡢゎᯒ㸪ὶືࢩ࣑࣮ࣗࣞࢩࣙ
ࣥ࡜ࡢẚ㍑ࡀ௒ᚋᚲせ࡛࠶ࡿ㸬Fig. 2 ⣧ Fe, Al ࡢࢺ࣮ࣞࢧ⢏Ꮚࡢ⿵㊊⤖ᯝ㸦࣮ࣞࢨ↷ᑕ఩⨨㸸X=0, Y=0ĺ3 mm㸧㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧− 76 −

࣮ࣞࢨ␗ᮦ᥋ྜ
㜿༡ᕤᴗ㧗➼ᑓ㛛Ꮫᰯ ๰㐀ᢏ⾡ᕤᏛ⛉すᮏ ᾈྖ
࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝ᕝே ὒ௓

㸯㸬◊✲⫼ᬒ࠾ࡼࡧ┠ⓗྛ✀ᵓ㐀㒊ᮦ࡟࠾࠸࡚㸪㐺ᮦ㐺ᡤ࡟ᮦᩱࡈ࡜ࡢ≉ᛶࢆ⏕࠿ࡋࡓ㧗௜ຍ౯್㸪㧗ᶵ⬟࠾ࡼࡧ㍍㔞໬࡞࡝ࡢࡓࡵ࡟㸪␗✀ᮦᩱࡢ᥋ྜࡀồࡵࡽࢀ࡚ࡁ࡚࠸ࡿ㸬≉࡟㸪㔠ᒓᮦᩱ࡜㍍㔞࡛㧗ᙉᗘ࡞」ྜᮦᩱ࡜ࡢ᥋ྜ
ࡀὀ┠ࡉࢀ࡚࠸ࡿ㸬ᚑ᮶ࡢ᥋ྜ᪉ἲ࡛ࡣ㸪࣎ࣝࢺ࣭ࢼࢵࢺࢆ⏝࠸ࡓᶵᲔⓗ⥾⤖ࡸ㸪᥋╔๣ࢆ⏝࠸ࡓ᥋╔ࡀᣲࡆࡽࢀࡿࡀ㸪ᶵᲔⓗ⥾⤖࡛ࡣ㸪᥋ྜ㒊ᮦ࡜ࡣู࡟᥋ྜ⏝㒊ရࡀᚲせ࡛࠶ࡾ㔜㔞ቑຍࡸ⏕⏘ᛶࡀຎࡿ࡞࡝ࡢၥ㢟ࡀ࠶ࡿ㸬᥋╔࡛ࡣ㸪᥋╔๣ࡢ᤼ฟ㔞ไ㝈ࡸ⥅ᡭᙉᗘࡀప࠸࡞࡝ࡢၥ㢟ࡀ࠶ࡿ㸬ࡋࡓࡀࡗ࡚㸪᥋ྜ⏝㒊ရࡸ᥋╔๣➼ࢆ⏝࠸ࡿࡇ࡜࡞ࡃ㸪㔠ᒓ࡜」ྜᮦᩱࡢ┤᥋᥋ྜᢏ⾡ࡢ☜❧ࡀồࡵࡽࢀ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪㔠ᒓ࡜ᶞ⬡ࢆ┤᥋᥋ྜྍ⬟࡞ LAMP ᥋ྜἲ 1-3)࡟ࡼࡾ㸪CFRTP ࡜ࢫࢸࣥࣞࢫ㗰ࡢ࣮ࣞࢨ┤᥋᥋ྜࢆ⾜ࡗࡓ㸬LAMP ᥋ྜ࡛ࡣ㸪㔠ᒓ࡜ᶞ⬡ࢆ㔜ࡡྜࢃࡏ㸪㔠ᒓࡲࡓࡣࣉࣛࢫࢳࢵࢡഃ࠿ࡽ࣮ࣞࢨ
ࢆ↷ᑕࡍࡿࡀ㸪CFRTP ࡢࡼ࠺࡟࣮ࣞࢨගࢆ㏱㐣ࡋ࡞࠸ᮦᩱ࡜ࡢ⤌ࡳྜࢃࡏࡢሙྜ㸪㔠ᒓഃ࠿ࡽ࣮ࣞࢨ
ࢆ↷ᑕࡍࡿ㸬࣮ࣞࢨ↷ᑕ࡟ࡼࡾ㸪㔠ᒓᮦᩱࢆຍ⇕ࡋ⇕ఏᑟ࡟ࡼࡾ᥋ྜ⏺㠃ࡢᶞ⬡ࢆᒁᡤⓗ࡟⁐⼥ࡉࡏࡿ㸬ࡉࡽ࡟ศゎᗘ௨ୖ࡟▐᫬࡟ຍ⇕ࡍࡿࡇ࡜࡛㸪᥋ྜ⏺㠃㏆ഐࡢ⁐⼥ụ୰࡟ẼἻࢆⓎ⏕ࡉࡏ㸪ࡑࡢ᫬ࡢẼἻࡢ⭾ᙇ࡟ࡼࡾ㸪㧗࡛άᛶ໬ࡋࡓ⼥ᾮࢆ㔠ᒓ⾲㠃࡟ᢲࡋࡘࡅᐦ╔ࡍࡿࡇ࡜࡛᥋ྜ㒊ࡀᙧᡂࡉࢀࡿ࡜⪃1)⥅ᡭᙉᗘ࡟ᙳ㡪ࢆཬࡰࡍࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬࠼ࡽࢀ࡚࠸ࡿ 㸬ࡇࢀࡽ᥋ྜ⏺㠃࡟ẼἻࡀᙧᡂࡍࡿẼἻࡣ㸪ᮏሗ࿌࡛ࡣ㸪ྛ✀᥋ྜ᮲௳ࡀཬࡰࡍ LAMP ᥋ྜᛶ࠾ࡼࡧẼἻࡢᙧᡂ≧ἣ࡟ࡘ࠸᳨࡚ウࡋࡓ㸬㸰㸬ᐇ㦂᪉ἲ
ᮏ◊✲࡛౑⏝ࡋࡓ CFRTP ࡢⅣ⣲⧄⥔ࡣ▷⧄⥔ࡢ PITCH ⣔࡛࠶ࡾ㸪ᶞ⬡ࡣ PA66㸦ࢼ࢖ࣟࣥ 66㸧࡛࠶ࡿ㸬㔠ᒓ࡟ࡣ㸪࣮࢜ࢫࢸࢼ࢖ࢺ⣔ࢫࢸࣥࣞࢫ㗰㸦SUS304㸧ࢆ⏝࠸ࡓ㸬ヨᩱࢧ࢖ࢬࡣ㸪ᅗ 1 ࡟♧ࡍࡶࡢࢆ⏝࠸㸪ཌࡉࡣ CFRTP ࡀ 4 mm㸪SUS304 ࡀ 1 mm ࡛࠶ࡿ㸬 ᐇ㦂⿦⨨ࡢᴫ␎ᅗࢆᅗ 2 ࡟♧ࡍ㸬㈨ᩱᅛᐃྎ࡟ CFRTP ࢆ⨨ࡁ㸪ࡑࡢୖ࡟ SUS304 ࢆ㔜ࡡ㸪CFRTP ࡜
SUS304 ࡜ࡢ㧗ࡉࢆㄪᩚࡍࡿࡓࡵ࡟ࢫ࣮࣌ࢧ࣮ࢆᣳࢇ࡛ᅛᐃࡋࡓ㸬࣮ࣞࢨ࡟ࡣࣇ࢓࢖ࣂ࣮࣮ࣞࢨࢆ⏝࠸㸪

Laser

Laser

SpacerSpacerSpacerSpacer(a) CFRTP

SUS304
SUS304

CFRTP
CFRTP

(b) SUS304ᅗ 2 ᐇ㦂⿦⨨ࡢᴫ␎ᅗᅗ 1 ౪ヨᮦᩱ− 77 −

SUS304 ⾲㠃࡟㞟ගࡋࡓ㸬࣮ࣞࢨධᑕゅࡣ๓㐍ゅ 20r࡜ࡋ㸪↔Ⅼࡣࡎࡋ㊥㞳ࢆ+28 mm ࡜ࡋࡓ㸬࣮ࣞࢨ
ฟຊࡣ 100 W ୍ᐃ࡜ࡋ㸪㏦ࡾ㏿ᗘࢆ 0.6㹼2.8 mm/s ࡜ኚ໬ࡉࡏ࡚ᐇ㦂ࢆ⾜ࡗࡓ㸬㸱㸬ᐇ㦂⤖ᯝ
ྛ✀⁐᥋᮲௳࡟ࡼࡾᐇ㦂ࢆ⾜ࡗࡓ⤖ᯝ㸪඲࡚ࡢ᮲௳࡛᥋ྜࡀྍ⬟࡛࠶ࡗࡓ㸬㏦ࡾ㏿ᗘ 0.6 mm/s ࠾ࡼࡧ 2.8 mm/s ࡟࠾ࡅࡿ᥋ྜᐇ㦂ᚋࡢ⥅ᡭࡢእほ෗┿ࢆᅗ 3 ࡟♧ࡍ㸬㏦ࡾ㏿ᗘࡀ㐜ࡃ࡞ࡿ࡯࡝㸪࣮ࣞࢨ↷ᑕ⑞ࡶ኱ࡁࡃ࡞ࡗ࡚࠾ࡾ㸪༑ศ࡞᥋ྜ㒊㠃✚ࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓ㸬ᚓࡽࢀࡓ⥅ᡭࡢᶵᲔⓗᙉᗘࢆㄪ࡭ࡿ
ࡓࡵ࡟㸪ᘬᙇࡏࢇ᩿ヨ㦂ࢆ⾜ࡗࡓ㸬ᘬᙇࡏࢇ᩿ヨ㦂ࡢ⤖ᯝ㸪㏦ࡾ㏿ᗘࡀ㐜ࡃ࡞ࡿ࡜࡜ࡶ࡟ᘬᙇࡏࢇ᩿ᙉ
ᗘࡣቑຍࡋ㸪㏦ࡾ㏿ᗘ 2.8 mm/s ࡢሙྜ࡛ࡣ⣙ 836 N ࡛࠶ࡗࡓ㸬ḟ࡟㸪᥋ྜ⏺㠃࡟ᙧᡂࡉࢀࡿẼἻ࡟ࡘ࠸᳨࡚ウࡍࡿࡓࡵ࡟㸪᥋ྜ㒊ࢆษ᩿ࡋ◊☻ᚋ࡟࣮ࣞࢨ㢧ᚤ㙾࡛ほᐹࡋࡓ㸬᥋ྜ㒊ࡢ᩿㠃ほᐹ⤖ᯝࢆᅗ 4 ࡟♧ࡍ㸬㏦ࡾ㏿ᗘࡀ 2.8 mm/s ࡢሙྜ࡛ࡣ㸪᥋ྜ㒊⤊➃࡟ࢃࡎ࠿࡟ẼἻࡀᙧᡂࡉࢀ࡚࠸ࡓ㸬0.6 mm/s ࡢሙྜ࡛ࡣ㸪᥋ྜ㒊඲ᇦ࡟ࢃࡓࡗ࡚ከᩘࡢẼἻࡀᙧᡂࡉࢀ᥋ྜࡉࢀ࡚࠾ࡾ㸪ᚑ᮶ࡢ LAMP ᥋ྜ࡟ࡼࡿ㔠ᒓ࡜ᶞ⬡ࡢ᥋ྜ࡜ྠᵝ࡟㸪᥋ྜ⏺㠃࡟ࡣẼἻࡀᙧᡂࡋ࡚᥋ྜࡉࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬㸲㸬⤖ㄽ ᮏ◊✲࡛ࡣ㸪LAMP ᥋ྜἲ࡟ࡼࡾ CFRTP ࡜ SUS304 ࡢ┤᥋᥋ྜࢆ✀ࠎࡢ᮲௳࡛⾜࠸㸪᥋ྜ⏺㠃࡟ᙧᡂࡉࢀࡿẼἻ࡜⥅ᡭᙉᗘ࡟ࡘ࠸᳨࡚ウࡋࡓ㸬ᐇ㦂ࡢ⤖ᯝ㸪CFRTP ࡜ SUS304 ࡢ᥋ྜࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ
ࢃ࠿ࡗࡓ㸬ࡲࡓ㸪ᚑ᮶ࡢ LAMP ᥋ྜ࡟ࡼࡿ㔠ᒓ࡜ᶞ⬡ࡢ᥋ྜ࡜ྠᵝ࡟᥋ྜ⏺㠃࡟ࡣẼἻࡀᙧᡂࡋ࡚᥋
ྜࡉࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ཧ⪃ᩥ⊩1) ∦ᒣ⪷஧㸪ᕝேὒ௓㸪୹⩚ᝆ௓㸪୹ୗ❶⏨㸪ஂಖ⏣ಟྖ㸸ࠕࢫࢸࣥࣞࢫ㗰࡜㠀⤖ᬗᛶ࣏ࣜ࢔࣑ࢻᶞ⬡࡜ࡢ࣮ࣞࢨ┤᥋᥋ྜ -㔠ᒓ࡜ࣉࣛࢫࢳࢵࢡࡢ࣮ࣞࢨ(LAMP)᥋ྜ-ࠖ㸪 ⁐᥋Ꮫ఍ㄽᩥ㞟㸪25-2㸪(2007)㸪
pp.316-322.
2) ᕝேὒ௓㸪୹⩚ᝆ௓㸪∦ᒣ⪷஧㸸ࠕࢫࢸࣥࣞࢫ㗰࡜࣏࢚ࣜࢳࣞࣥࢸࣞࣇࢱ࣮ࣞࢺ࡜ࡢ࣮ࣞࢨ┤᥋᥋ྜ࡜ಙ㢗ᛶホ౯ࠖ㸪⁐᥋Ꮫ఍ㄽᩥ㞟28-1㸪(2010)㸪pp.16-21
3) すᮏᾈྖ㸪୰ᮧᾈ㸪୹⩚ᝆ௓㸪ᕝேὒ௓㸪∦ᒣ⪷஧㸸ࠕ࣮ࣞࢨࢆ⏝࠸ࡓ⣧ࢳࢱࣥ࡜࢚ࣥࢪࢽ࢔ࣜࣥࢢࣉࣛ
ࢫࢳࢵࢡPET࡜ࡢ␗ᮦ┤᥋᥋ྜࠖ㸪㍍㔠ᒓ⁐᥋㸪Vol.51㸪No.5㸪(2013) 㸪pp.166-172(a) 0.6 mm/s(a) 0.6 mm/s(b) 2.8 mm/s(b) 2.8 mm/s

ᅗ 3 ⥅ᡭࡢእほ෗┿ᅗ 4 ᥋ྜ㒊᩿㠃ほᐹ෗┿㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧− 78 −

␗ᮦ⏺㠃ࡢᚤ⣽ᵓ㐀ࡢほᐹࠊホ౯ཬࡧไᚚ
᭷ᶵ↓ᶵ᥋ྜ⏺㠃ࡢᚤᵓ㐀ほᐹⰪᾆᕤᴗ኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉ ᛂ⏝໬Ꮫᑓᨷ ኱▼ ▱ྖᅜ❧◊✲㛤Ⓨἲே ≀㉁࣭ᮦᩱ◊✲ᶵᵓ ᅜ㝿ࢼࣀ࢔࣮࢟ࢸࢡࢺࢽࢡࢫ◊✲ᣐⅬ MANA ࣇ࢓࢘ࣥࢻࣜ
⏕⏣┠ ಇ⚽1. ┠ⓗ㏆ᖺࡢࣔࣂ࢖ࣝᶵჾࡢ㟂せᣑ኱࡟క࠸ࠊⷧ࠸ࠊ㍍࠸ࠊ᭤ࡆࡽࢀࡿ࡜࠸ࡗࡓ≉ᚩࢆࡶࡘࣇࣞ࢟ࢩࣈࣝࢹࣂ࢖ࢫ࡟ὀ
┠ࡀ㞟ࡲࡗ࡚࠸ࡿࠋ≉࡟ࠊ࢙࢘࢔ࣛࣈࣝࢹࣂ࢖ࢫࡣὀ┠ࢆ㞟ࡵࠊ᪤࡟ேయࡢయ ࠊ⬦ᢿࠊờ➼ࢆឤ▱࡛ࡁࡿࣜࢫࢺ
ࣂࣥࢻࢱ࢖ࣉࡀ〇ရ໬ࡉࢀ࡚࠸ࡿࠋࡇࢀࡽࡢࣇࣞ࢟ࢩࣈࣝࢹࣂ࢖ࢫࡢᇶᯈᮦᩱ࡜ࡋ࡚ࠊ୍⯡࡟ࣇࣞ࢟ࢩࣈࣝᛶࢆࡶ
ࡘ࣏࢚ࣜࢫࢸ࡛ࣝ࠶ࡿ᭷ᶵࣇ࢕࣒ࣝࡀⰋࡃ⏝࠸ࡽࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊ᭷ᶵࣇ࢕࣒ࣝࡣ࢞ࢫࣂࣜ࢔ᛶࡀప࠸ࡓࡵ࡟ࠊ
ࣇࣞ࢟ࢩࣈࣝࢹࣂ࢖ࢫࡢ⣲Ꮚ࡛࠶ࡿᾮᬗ࣭᭷ᶵ EL Ⓨගయ࣭᭷ᶵ༙ᑟయ➼ࡀ㓟⣲࣭Ỉ⵨Ẽ࡟ࡼࡾຎ໬ࡋࡸࡍ࠸ࡇ࡜
ཬࡧ⪏⇕ᛶࡀప࠸ࡓࡵ࡟㧗 ࡛ࡢⷧ⭷ᙧᡂ࡟⪏࠼ࡽࢀ࡞࠸࡜࠸ࡗࡓၥ㢟Ⅼࡀᣲࡆࡽࢀࡿࠋࡇࡢ࢞ࢫࣂࣜ࢔ᛶࡢྥୖ
ࡢࡓࡵ࡟ࠊ᭷ᶵࣇ࢕࣒ࣝࡢᮦᩱࡢ㛤Ⓨཬࡧࢥ࣮ࢸ࢕ࣥࢢ⭷ࡢ㛤Ⓨࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋࢥ࣮ࢸ࢕ࣥࢢ⭷ࡢస〇᪉ἲ࡜ࡋ࡚ࠊ┿✵࡛ࡢ໬ᏛẼ┦ᡂ㛗(CVD)ἲཬࡧࢫࣃࢵࢱࣜࣥࢢἲࡀ୺ὶ࡛࠶ࡿࡀࠊࡇࢀࡽࡣࠊ⿦⨨ཬࡧཎᩱࡀ㧗ࢥࢫࢺ࡞ࡇ࡜ཬࡧస〇ᕤ⛬ࡀ」㞧࡛࠶ࡿࠋࡇࢀࡲ࡛ࠊᡃࠎࡣࠊ⡆౽࠿ࡘపࢥࢫࢺࠊప ࡛ࡢⷧ⭷ᙧᡂࡀྍ⬟࡞ග↷ᑕࢆ฼⏝ࡋࡓሬᕸἲ࡟ࡼࡿ࢞ࢫࣂࣜ࢔ⷧ⭷ᙧᡂᢏ⾡ࡢ㛤Ⓨࢆ᳨ウࡋ࡚࠸ࡿࠋ
ᮏ◊✲࡛ࡣࠊ࢚ࢳࣞࣥࢢࣜࢥ࣮ࣝ࡜ࢸࣞࣇࢱࣝ㓟ࢆ㔜⦰ྜ཯ᛂ࡟ࡼࡗ࡚ᚓࡽࢀࡓ⤖ᬗᛶࡢ⇕ྍረᛶ࣏࢚ࣜࢫࢸࣝ
࡛࠶ࡿ࣏࢚ࣜࢳࣞࣥࢸࣞࣇࢱ࣮ࣞࢺ(PET)ࣇ࢕࣒ࣝୖ࡟ࠊ㓟⣲࣭Ỉ⵨Ẽࢆ㐽᩿ࡍࡿࡇ࡜ࢆ┠ⓗ࡟ࠊ࣏ࣜࢩࣛࢨࣥࢆ
⏝࠸ࡓ࢚࢟ࢩ࣐ࣛࣥࣉ(172nm)ග↷ᑕ࢔ࢩࢫࢺሬᕸἲ࡛ SiO2 ࢞ࢫࣂࣜ࢔ࣇ࢕࣒ࣝࢆస〇ࡋࡓࠋSiO2 ࢞ࢫࣂࣜ࢔ࣇ
࢕࣒ࣝࡢỈ⵨Ẽ㏱㐣㔞࡜ SiO2 ⷧ⭷ࡢᵓ㐀࡜ࡢ㛵㐃ᛶ࡟ࡘ࠸࡚ㄪ࡭ࡿࡓࡵ࡟ࠊPET/SiO2 ⭷ࡢ✚ᒙᵓ㐀࡟࠾ࡅࡿ⭷ࡢ⦓ᐦᛶཬࡧ⏺㠃཯ᛂᒙࡢ᭷↓࡟ࡘ࠸࡚ࠊ኱㜰኱Ꮫ᥋ྜ◊ᡤ᭷ࡢ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾㸦᪥ᮏ㟁Ꮚ〇 JEM-2010㸧࡛Transmission Electron Microscope (TEM)ほᐹཬࡧ Energy dispersive X-ray spectroscopy (EDS)ඖ⣲࣐ࢵࣉ࡟ࡼࡾゎᯒࡋ࡚㆟ㄽࡋࡓࠋ
㸰㸬◊✲᪉ἲ
᭷ᶵࣇ࢕࣒ࣝ࡜ࡋ࡚ỗ⏝ᛶࡢ㧗࠸ PET ࣇ࢕࣒ࣝୖ࡬ࠊ࡟㓟⣲࣭Ỉ⵨Ẽࢆ㐽᩿ࡍࡿࡓࡵ࡟ࠊ⦓ᐦ࡞ SiO2 ࢞ࢫࣂࣜ࢔ࣇ࢕࣒ࣝࢆᙧᡂࡍࡿࡇ࡜࡛ࠊ⤖ᯝ࡜ࡋ࡚ࠊ㧗࠸࢞ࢫࣂࣜ࢔ᛶࢆ᭷ࡍࡿ PET ࣇ࢕࣒ࣝ࡬ᨵ㉁ࡉࡏࡿࠋࡇࡇ࡛ࠊ
⦓ᐦ࡞ SiO2 ࢞ࢫࣂࣜ࢔ࣇ࢕࣒ࣝࢆస〇ࡍࡿཎᩱ࡜ࡋ࡚࣏ࣜࢩࣛࢨࣥࢆ⏝࠸ࡓࠋᅗ㸯࡟♧ࡍࡼ࠺࡟ࠊ࣏ࣜࢩࣛࢨࣥ
ࡣ Si-N ⤖ྜࢆᣢࡘ↓ᶵ࣏࣐࣮࡛ࣜ࠶ࡾࠊ኱Ẽ୰ࡢ㓟⣲ࠊỈ⵨Ẽ࡜཯ᛂࡋ࡚ࠊSiO2 ᵓ㐀࡬࡜㌿໬ࡍࡿࠋࡇࡢ཯ᛂࡢ
㐣⛬࡛ࠊග࣭⇕ྠ᫬ฎ⌮ࢆ⾜࡞࠺ࡇ࡜࡛ࠊࡇࡢ཯ᛂࢆಁ㐍ࡉࡏࡿࠋ௒ᅇࠊ⏝࠸ࡓ࢚࢟ࢩ࣐ࣛࣥࣉࡢග࢚ࢿࣝࢠ࣮
(166kcal/mol)ࡣࠊ࣏ࣜࢩࣛࢨࣥࡢྛ⤖ྜ࢚ࢿࣝࢠ࣮(Si-N: 105kcal/mol, Si-H: 71kcal/mol, N-H: 92kcal/mol)ࢆୖ
ᅇࡿࡓࡵࠊ࣏ࣜࢩࣛࢨࣥࡢ⤖ྜࢆຠ⋡ⓗ࡟ษ᩿ࡋࠊప ࡛཯ᛂࢆಁ㐍ࡍࡿࡇ࡜ࡀᮇᚅࡉࢀࡿࠋ
SiO2 ࢞ࢫࣂࣜ࢔ࣇ࢕࣒ࣝࡢస〇᪉ἲࢆḟ࡟♧ࡍࠋඛࡎࠊ20wt% ࡢ࣏ࣜࢩࣛࢨࣥ⁐ᾮ࡟ࢪ-n-ࣈࢳ࢚࣮ࣝࢸࣝࢆຍ
࠼ࠊ5wt% ࡢ࣏ࣜࢩࣛࢨࣥ⁐ᾮ࡜ࡋࡓࠋࡇࡢ 5wt% ࡢ࣏ࣜࢩࣛࢨࣥ⁐ᾮࢆࠊཌࡉ 100μm ࡢ PET ࣇ࢕࣒ࣝୖ࡟ࠊ
2000rpm ࡢᅇ㌿᮲௳࡛ࢫࣆࣥࢥ࣮ࢺἲࢆ⏝࠸࡚ሬᕸࡋࡓࠋ⥆࠸࡚ࠊ100Υ࡛ࣉࣞ࣋࢖ࢡࢆࡋࡓᚋ࡟ࠊἼ㛗 172nm
ࡢ࢚࢟ࢩ࣐ࣛࣥࣉ࡜ࣛࣂ࣮ࣄ࣮ࢱ࣮ࢆ⏝࠸࡚ග࣭⇕ྠ᫬ࡢฎ⌮ࢆ᪋ࡋࡓࠋࡇࡢࣉࣟࢭࢫᅇᩘࢆኚ࠼ࡿࡇ࡜࡛⭷ཌࢆไᚚࡋࡓࠋࡲࡓࠊࡇࡢⷧ⭷ᙧᡂࡣࠊPET ࣇ࢕࣒ࣝࡢ୧㠃࡟ᐇ᪋ࡋࡓࠋỈ⵨Ẽ㏱㐣㔞ࡣࠊ㏱‵ᗘヨ㦂( ࢝ࢵࣉἲ㸸JIS
Z 0208 ࠊMOCON ἲ㸸JIS K7129 40Υ࣭90㸣RH)࡟ࡼࡾ ᐃࡋࡓࠋ− 79 −

ᅗ㸯 ࣏ࣜࢩࣛࢨࣥࡢග࣭⇕ྠ᫬ฎ⌮࡟ࡼࡿ SiO2 ⭷ᙧᡂࡢ཯ᛂᶍᘧᅗ
㸱㸬⤖ᯝ
PET ༢య࡛ࡣ 6.8g/m2࣭day ࡢỈ⵨Ẽ㏱㐣㔞࡛࠶ࡗࡓࡢ࡟ᑐࡋ࡚ࠊ1 ᅇࢥ࣮ࢺࡋࡓ SiO2 ⭷࡛ࡣ 1.2g/m2࣭day ࡢ࢞ࢫࣂࣜ࢔ᛶࢆ♧ࡋࡓࠋࡲࡓࠊ2 ᅇࢥ࣮ࢺࡋࡓ SiO2 ࢥ࣮ࢺ⭷࡛ࡣ 0.02g/m2࣭day ௨ୗ( ᐃ㝈⏺್௨ୗ)ࡢ㠀ᖖ࡟Ⰻዲ࡞࢞ࢫࣂࣜ࢔ᛶࡀᚓࡽࢀࡓࠋࡇࢀࡼࡾࠊ࢞ࢫࣂࣜ࢔ᛶ࡟ࡣ SiO2 ⭷ࡢ⭷ཌࡀᙉࡃᙳ㡪ࡍࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋࡲ
ࡓࠊపᅽỈ㖟ࣛࣥࣉ࡛స〇ࡋࡓ SiO2 ⭷࡟ẚ࡭ࡿ࡜ࠊ࢚࢟ࢩ࣐ࣛࣥࣉࡣࠊపᅽỈ㖟ࣛࣥࣉࡢ 1/3 ௨ୗࡢ↷ᑕ᫬㛫࡛ࠊపᅽỈ㖟ࣛࣥࣉ࡛స〇ࡋࡓ SiO2 ⭷௨ୖࡢ࢞ࢫࣂࣜ࢔ᛶࢆ♧ࡋࡓࠋࡇࢀࡣࠊపᅽỈ㖟ࣛࣥࣉ࡜ẚ࡭࡚࢚࢟ࢩ࣐ࣛࣥ
ࣉࡣග࢚ࢿࣝࢠ࣮ࡀ኱ࡁ࠸ࡓࡵ࡟ࠊᑡ࡞࠸↷ᑕ᫬㛫࡛⭷⾲㠃ࠊᐦ╔ᛶࡢⰋዲ࡞࢞ࢫࣂࣜ࢔⭷ࢆస〇ࡍࡿࡇ࡜ࡀ࡛ࡁ
ࡓ࡜⪃࠼ࡽࢀࡿࠋ
ࡇࡢⰋዲ࡞≉ᛶࢆ♧ࡋࡓ 2 ᅇࢥ࣮ࢺࡋࡓ SiO2 ⭷ࡢ᩿㠃 TEM ཬࡧ EDS ⤖ᯝࢆᅗ㸰࡟♧ࡍࠋ
PET ཬࡧ SiO2 ⭷ࡣࠊ㟁Ꮚ⥺ᅇᢡ࡛ࢫ࣏ࢵࢺཬࡧࣁ࣮ࣟࣃࢱ࣮ࣥࡀㄆࡵࡽࢀ࡞࠸஦ࡼࡾࠊ࢔ࣔࣝࣇ࢓ࢫᵓ㐀࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ᩿㠃
TEM ീࡼࡾࠊSiO2 ⭷࡟⃰ῐࡀ␗࡞ࡿᒙ≧ࡀㄆࡵࡽࢀࠊ5 ᒙ࡛࠶ࡗࡓࠋḟ࡟ࠊࡇࡢྛᒙࡢᵓᡂඖ⣲ࢆㄪ࡭ࡿࡓࡵ࡟ࠊEDS ࣐ࢵࣉゎᯒࡋࡓࠋSi ඖ⣲ཬࡧ N ඖ⣲ࡣ SiO2 ⭷࡟ᆒ୍࡟ศᕸࡋ࡚࠸ࡿᵝ࡟ぢ࠼ࡿࠋ୍᪉ࠊO ඖ⣲ࡣ PET ⏺
㠃ࠊ୰ኸཬࡧ᭱⾲㠃ᒙ࡛ᙉᗘࡀᙉࡃ࡞ࡗ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋXPS ศᯒࡢࢹࣉࢫࣉࣟࣇ࢓࢖ࣝࡼࡾࠊN ඖ⣲ࡀ⭷ࡢ୰ኸ࡛⃰࠸⤖ᯝࡔࡗࡓࠋࡇࢀࡼࡾࠊ᩿㠃 TEM ീ࡛ほᐹࡉࢀࡓ SiO2 ⭷ࡢ 5 ᒙࡢⰍࡢ⃰ῐࡣ୺࡟ O ඖ⣲࡟㛵ಀࡋ࡚࠾ࡾࠊⰍࡢⷧ࠸ᒙ࡛ O ඖ⣲ࡀከࡃࠊⰍࡢ⃰࠸ᒙ࡛ࡣࠊ㏫࡟ࠊO ඖ⣲ࡀᑡ࡞࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋ

ᅗ㸰 PET ୖ࡬ᙧᡂࡉࢀࡓ 2 ᅇࢥ࣮ࢺࡋࡓ SiO2 ⭷ࡢ᩿㠃 TEM ീཬࡧ EDS ࣐ࢵࣉ㸲㸬⤖ㄽ
PET ࣇ࢕࣒ࣝୖ࡬ࠊ࢚࢟ࢩ࣐ࣛࣥࣉ(172nm)ග↷ᑕ࢔ࢩࢫࢺሬᕸἲ࡛Ỉ⵨Ẽ㏱㐣㔞ࢆ኱ᖜ࡟పῶ࡛ࡁࡓ࢞ࢫࣂࣜ
࢔≉ᛶ࡟ඃࢀࡓ⦓ᐦ࡞ SiO2 ⭷ࢆస〇࡛ࡁࡓࠋࡑࡢ SiO2 ⭷ࢆ᩿㠃 TEM ീཬࡧ EDS ࣐ࢵࣉࡋࡓ⤖ᯝࠊO ඖ⣲ࡀᒙ≧࡟⃰ᗘศᕸࢆᣢࡗࡓᒙ≧ᵓ㐀࡛ᵓᡂࡉࢀ࡚࠸ࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋ
ᮏ◊✲ࡢ୍㒊ࡣ JSPS ⛉◊㈝࡛ᐇ᪋ࡉࢀࡓࠋ
ᮏෆᐜ࡟ࡘ࠸࡚ࠊࢭ࣑ࣛࢵࢡࢫ༠఍[1]࡛Ⓨ⾲῭࡛࠶ࡿࠋ
5. ཧ⪃ᩥ⊩[1] ᒣᓮ⚈⨾ࡽࠊ᪥ᮏࢭ࣑ࣛࢵࢡࢫ༠఍ 2017 ᖺᖺ఍ 1P198.
㸦ඹྠ◊✲ศ㔝㸸⁐᥋ᶵᵓᏛศ㔝㸧− 80 −

ᦶ᧿ࢆ฼⏝ࡋࡓᅛ┦᥋ྜ㐣⛬࡛ࡢධ⇕࡜⥅ᡭ≉ᛶᮾ໭኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉బ⸨ ⿱ࠊ㉿ ኳἼ㸯㸬┠ⓗ ⁐᥋࡟࠾࠸࡚ࠕ⿕᥋ྜᮦ࡬ࡢධ⇕ࠖࡣ⥅ᡭရ㉁ࡢ⟶⌮ୖࠊᴟࡵ࡚㔜せ࡞ᅉᏊ࡜ゝ࠼ࡿࠋ࢔࣮ࢡ⁐᥋࡛ࡣࠊᢞධࡉ
ࢀࡿ㟁Ẽ࢚ࢿࣝࢠ࣮ࡀ඲࡚⇕࡟ኚ᥮ࡉࢀࡿ࡜௬ᐃࡋࡓᘧ 1)ࡀᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿࡀࠊᦶ᧿ᨩᢾ᥋ྜ㸦FSW㸧࡟࠾࠸࡚ࠕ⿕᥋ྜᮦ࡬ࡢධ⇕ࠖࢆ⢭ᗘࡼࡃồࡵࡿᘧࡣ☜❧ࡉࢀ࡚࠸࡞࠸ࠋFSW ࡢධ⇕ࡢ௦ࢃࡾ࡜ࡋ࡚ࠊ᥋ྜ㏿ᗘࢆࢶ࣮ࣝᅇ㌿㏿ᗘ࡛๭ࡗࡓᅇ㌿ࣆࢵࢳ 2)ࡀ⏝࠸ࡽࢀࡿሙྜࡀ࠶ࡿࡀࠊప᥋ྜ㏿ᗘ࡛㧗ᅇ㌿㏿ᗘ࡯࡝⇕ᙳ㡪ࡀ኱ࡁࡃ࡞ࡿ࡜
࠸࠺⤒㦂๎࡟ᇶ࡙ࡃࡶࡢ࡛࠶ࡾࠊ
ࠕ⿕᥋ྜᮦ࡬ࡢධ⇕ࠖࢆ⾲ࡍࡶࡢ࡛ࡣ࡞࠸ࠋࡉࡽ࡟ࠊࢩࣙࣝࢲ㠃࡛Ⓨ⏕ࡍࡿᦶ᧿Ⓨ⇕ࡀධ⇕࡟ẚ౛ࡍࡿ࡜௬ᐃࡋࡓ Frigaard ࡢᘧ 3)ࠊ୺㍈ᅇ㌿࣮ࣔࢱࡢࢺࣝࢡ࠿ࡽ FSW ᫬ࡢධ⇕ࢆồࡵࡿࣔࢹࣝ 4)࡞࡝ࡀᥦ᱌ࡉࢀ࡚࠸ࡿࡀࠊFSW 㐣⛬࡛ࡢ௙஦ࡣ⿕᥋ྜᮦ࡬ࡢධ⇕ࡔࡅ࡛࡞ࡃࠊࢶ࣮ࣝ࡬ࡢධ⇕ࡸᚤ⣽⤖ᬗ⢏ᙧᡂࡢࡓࡵࡢ࢚ࢿࣝࢠ࣮➼࡬ศ㓄ࡉࢀࡿࡓࡵࠊ
ࠕ⿕᥋ྜᮦ࡬ࡢධ⇕ࠖ࡜ࡢ㛵㐃ᛶࡣ୙࡛᫂࠶ࡿࠋᮏ◊✲࡛ࡣࠊ6063Al ྜ㔠ࡢ FSW 㐣⛬࡟࠾࠸࡚⿕᥋ྜᮦ࡬ᢞධࡉࢀࡿ⇕㔞㸦ධ⇕㸧ࢆࠊAota ࡽ 5)࡟ࡼࡗ࡚ᥦ᱌ࡉࢀࡓ࣓࢝ࣟࣜࢺ࣮ࣜἲࢆ
⏝࠸࡚ᐇ ࡋࡓࠋࡉࡽ࡟ࠊᐇ ࡋࡓධ⇕ࢆ᥋ྜᅉᏊ࠿ࡽồࡵࡿᐇ㦂ᘧࢆᚓࡿ࡜࡜ࡶ࡟ࠊ◳ࡉศᕸࡸ⥅ᡭᘬᙇ≉ᛶ࡜ࡢ㛵㐃ᛶ࡟ࡘ࠸࡚ㄪ࡭ࡓࠋ
㸰㸬◊✲᪉ἲ ⿕᥋ྜᮦ࡬ᢞධࡉࢀࡓ⇕㔞ࢆᐇ ࡍࡿࡓࡵࠊỈᵴࡢ୰࡟ᅛᐃࡋࡓ Cu 〇⿬ᙜᯈࡢୖ࡟⿕᥋ྜᮦࢆタ⨨ࡋࡓᚋࠊỈࢆ⿬ᙜᯈࡢ㧗ࡉࡲ࡛ධࢀ࡚ FSW ࢆ⾜ࡗࡓࠋFSW ๓ᚋࡢỈࠊ⿕᥋ྜᮦࠊ⿬ᙜᯈࡢ ᗘኚ໬ࠊ⇕ᐜ㔞ࠊ᥋ྜ㛗ࢆ⏝࠸࡚ࠕ⿕᥋ྜᮦ࡬ࡢධ⇕ HI (J/mm)ࠖࢆồࡵࡓ 6)ࠋ⿕᥋ྜᮦࡣᯈཌ 4mm ࡢ 6063Al ྜ㔠 T5 ᮦ࡛࠶ࡾࠊࢶ࣮ࣝᅇ㌿㏿ᗘ
ࢆ 1000㹼3000rpmࠊ᥋ྜ㏿ᗘࢆ 200㹼400mm/min ࡢ⠊ᅖ࡛ኚ໬ࡉࡏࡓࠋࡡࡌ௜ࣉ࣮ࣟࣈࢆ᭷ࡍࡿ᥋ྜࢶ࣮ࣝࢆ౑⏝ࡋࠊࡑࡢᙧ≧ࡣࢩࣙࣝࢲᚄ 15mmࠊࣉ࣮ࣟࣈ㛗 3.8mmࠊࣉ࣮ࣟࣈᚄ 5mm ࡜ࡋࡓࠋࢶ࣮ࣝഴᩳゅࡣ 3 ᗘࠊࣉ࣮ࣟࣈࡢᤄධ῝ࡉࡣ 3.6mm ୍࡛ᐃ࡜ࡋࡓࠋFSW ᚋࡢ⥅ᡭ᩿㠃࡟࠾࠸࡚◳ࡉศᕸࢆ ᐃࡍࡿ࡜࡜ࡶ࡟ࠊ᥋ྜ᪉ྥ࡟ᆶ┤࡟ᘬᙇヨ㦂∦ࢆษࡾฟࡋࠊ⥅ᡭᘬᙇ≉ᛶࢆㄪ࡭ࡓࠋ
㸱㸬⤖ᯝ
 6063Al ྜ㔠ࡢ FSW 㐣⛬࡟࠾ࡅࡿධ⇕ࢆᐇ ࡋࡓ⤖ᯝࠊᅇ㌿㏿ᗘࡀ㧗࠸࡯࡝ࠊ᥋ྜ㏿ᗘࡀప࠸࡯࡝㧗ࡃ࡞ࡿഴྥࢆ♧ࡋࡓࠋࡇࡢഴྥࡣከࡃࡢㄽᩥ➼࡛ሗ࿌ࡉࢀ࡚࠸ࡿ⤒㦂๎࡜୍⮴ࡋࡓࠋධ⇕ᐇ ್ࢆ᥋ྜ㏿ᗘ V (mm/s)ࠊᅇ㌿㏿ᗘ N (rad/s)࠿ࡽồࡵࡿࡓࡵࡢ
ᐇ㦂ᘧࢆ㔜ᅇᖐศᯒ࡟ࡼࡾồࡵࠊḟᘧࢆᚓࡓࠋ
HI = 133 V-0.62 N0.40ᐇ㦂ᘧ࠿ࡽᚓࡽࢀࡿධ⇕࡜ධ⇕ᐇ ್ࡢ㛵ಀࢆᅗ
1 ࡟♧ࡍࠋከᑡࡢࡤࡽࡘࡁࡀ࠶ࡿࡶࡢࡢࠊࡼ࠸┦㛵ࡀᚓࡽࢀࡓࠋࡲࡓࠊ5083Al ྜ㔠࡟࡚ᚓࡽࢀࡓᐇ㦂ᘧ
6)࡜ྠᵝࠊධ⇕࡟ᑐࡋ࡚ࡣᅇ㌿㏿ᗘࡼࡾࡶ᥋ྜ㏿ᗘࡢᐤ୚ᗘࡢ࡯࠺ࡀ㧗࠸ࡇ࡜ࡀ♧ࡉࢀࡓࠋ 6063Al ྜ㔠 FSW ⥅ᡭࡢ◳ࡉศᕸࢆᅗ 2 ࡟♧ࡍࠋ᥋ྜ୰ᚰ௜㏆࡛◳ࡉࡀపୗࡋࠊࡑࡢእഃ࡛᭱ᑠ◳ࡉᅗ 1 ධ⇕ᐇ ್࡜ᐇ㦂ᘧ࠿ࡽᚓࡽࢀࡿධ⇕್ࡢ㛵ಀࢆ♧ࡍ㡿ᇦࡀᏑᅾࡋ࡚࠸ࡿࠋ◳ࡉపୗ㡿ᇦࡣධ⇕㔞− 81 −

ࡢቑຍ࡜࡜ࡶ࡟ᣑ኱ࡋࠊ᭱ᑠ◳ࡉࡢ್ࡶపୗࡋࡓࠋᅗ 3 ࡟᭱ᑠ◳ࡉࡢ఩⨨㸦᥋ྜ୰ᚰ࠿ࡽࡢ㊥㞳㸧࡜ධ⇕ᐇ ࡜ࡢ㛵ಀࢆ♧ࡍࡀࠊ୧⪅ࡣⰋ࠸┦㛵ࢆ♧ࡋࡓࠋ6063Al ྜ㔠࡟࠾࠸࡚ࡣࠊᚤ⣽࡞㔪≧ᯒฟ≀ࡀᶵᲔⓗ≉ᛶࢆᨭ㓄ࡋ࡚࠾
ࡾࠊFSW 㐣⛬࡛ࡢ ᗘୖ᪼࡟కࡗ࡚㔪≧ᯒฟ≀ࡀ⁐ゎࡍࡿࠋ㔪≧ᯒฟ≀ࡀ⁐ゎࡋࡓ㡿ᇦ࡛ࡣ◳ࡉࡀపୗࡋࠊࡇࡢ
㡿ᇦࡣ⇕ᙳ㡪ࡢቑຍ࡜࡜ࡶ࡟ᣑ኱ࡍࡿࡇ࡜ࡀᐜ᫆࡟᝿ീ࡛ࡁࡿࠋ
ᅗ 3 ࡣ㔪≧ᯒฟ≀ࡀ⁐ゎࡋࡓ㡿ᇦࡢᖜࡣධ⇕್࡟ࡼࡾỴࡲࡾࠊධ⇕್ࡼࡾண ࡛ࡁࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋࡲࡓࠊ᭱ᑠ◳ࡉ್ࡶධ⇕್࡜ࡼ࠸┦㛵ᛶࢆ♧ࡋࡓࠋࡉࡽ࡟ࠊ
⥅ᡭᘬᙇヨ㦂࡟࠾ࡅࡿ◚᩿ࡣ᭱ᑠ◳ࡉࡢ㡿ᇦ࡛⏕ࡌࠊ⥅ᡭࡢᘬᙇᙉࡉࡶධ⇕್࡜ࡼ࠸┦㛵ࢆ♧ࡋࡓࡇ࡜࠿ࡽࠊ᥋ྜ
᮲௳ࡀỴࡲࡿ࡜ධ⇕್ࡀィ⟬࡛ࡁࠊධ⇕್ࡼࡾ⥅ᡭᘬᙇヨ㦂࡟࠾ࡅࡿ◚᩿఩⨨㸦᭱ᑠ◳ࡉࡢ఩⨨㸧ࡸᘬᙇᙉࡉࢆồࡵࡽࢀࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋ㸲㸬⤖ㄽ
 6063Al ྜ㔠ࡢ FSW 㐣⛬࡛ࡢධ⇕ࢆ࣓࢝ࣟࣜࢺ࣮ࣜἲ࡟࡚ᐇ ࡋࠊ᥋ྜ᮲௳㸦ᅇ㌿㏿ᗘ࡜᥋ྜ㏿ᗘ㸧࠿ࡽධ⇕್ࢆồࡵࡿᐇ㦂ᘧࢆᥦ᱌ࡋࡓࠋධ⇕್ࡣࠊ◳ࡉศᕸ࡟࠾ࡅࡿ◳ࡉపୗ㡿ᇦࡢᖜࠊ᭱ᑠ◳ࡉࡢ఩⨨ࠊ⥅ᡭᘬᙇヨ㦂࡟࠾ࡅࡿ◚᩿఩⨨ࠊᘬᙇᙉࡉ࡜ࡼ࠸┦㛵ࢆ♧ࡋࡓࡇ࡜࠿ࡽࠊ᥋ྜ᮲௳࠿ࡽධ⇕್ࢆ௓ࡋ࡚ࠊ⥅ᡭࡢᶵᲔⓗ≉ᛶࢆồࡵࡽࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ

ᅗ 2 6063Al ྜ㔠 FSW ⥅ᡭࡢ◳ࡉศᕸ

ᅗ 3 ධ⇕ᐇ ್࡜᭱ᑠ◳ࡉ఩⨨㸦᥋ྜ୰ᚰ࠿ࡽࡢ㊥㞳㸧ࡢ㛵ಀ㸳㸬ཧ⪃ᩥ⊩
1) Gourd: Principles of welding technology, 5th ed., Edward Arnold, UK, (1980), 39-41.
2) ⸨஭: ⁐᥋Ꮫ఍ㄅ, 78 (2009), 274-282.
3) Frigaard et al: Metall. Mater. Trans. A, 32A (2001), 1189-1200.
4) Pew et al.: Sci. Technol. Weld. Join., 12 (2007), 341-347.
5) Aota et al.: Proc. 3rd Int. FSW Symp., Kobe, Japan, (2001), CD-ROM.
6) Sato et al.: Sci. Technol. Weld. Join., 21 (2016), 325-330.
㸦ඹྠ◊✲ศ㔝㸸⁐᥋ᶵᵓᏛศ㔝㸧− 82 −

␗ᮦ⏺㠃ࡢᚤ⣽ᵓ㐀ࡢほᐹࠊホ౯ཬࡧไᚚ
㔠ᒓ/㔠ᒓ㓟໬≀ࡢ᥋ྜ⏺㠃࡟࠾ࡅࡿࢼࣀ࡛ࣞ࣋ࣝࡢ⤌ᡂཬࡧᵓ㐀ゎᯒ⊂❧⾜ᨻἲே ≀㉁࣭ᮦᩱ◊✲ᶵᵓ ᅜ㝿ࢼࣀ࢔࣮࢟ࢸࢡࢺࢽࢡࢫ◊✲ᣐⅬ MANA ࣇ࢓࢘ࣥࢻࣜ
⏕⏣┠ ಇ⚽ࠊᮌὠࡓࡁ࠾ࠊ኱஭ ᬡᙪ

1. ┠ⓗ⌧ᅾࠊ3 ḟඖ❧యᵓ㐀ࡢࢳ࣮ࣕࢪࢺࣛࢵࣉࢱ࢖ࣉࡢࣇࣛࢵࢩ࣓ࣗࣔࣜࡣࠊ᭦࡞ࡿ㧗㞟✚໬ࡢࡓࡵ࡟ࠊ32 ᒙࢆ㉸࠼ࡿ࣓࣮ࣔࣜࢭࣝᒙࡀ㛤Ⓨ୰࡛࠶ࡿࠋ3 ḟඖࡢ࣮࣍ࣝࡢෆቨ࡟ᙧᡂࡉࢀࡿࢳ࣮ࣕࢪࢺࣛࢵࣉᵓ㐀ࡣࠊ㟁Ⲵࢆὀධࡍࡿ
㝿ࡢ SiO2 ࢺࣥࢿࣝᒙࠊ㟁Ⲵࢆ⁀ࡵࡿ SiN ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙࠊཬࡧࢺࣛࢵࣉࡉࢀࡓ㟁ⲴࡢᨺฟࢆṆࡵࡿ Al2O3 ࣈࣟࢵ࢟ࣥࢢᒙ࠿ࡽᵓᡂࡉࢀࡓ TANOS (Si/SiO2/SiN/Al2O3/TaN)ࡀ୺ὶ࡛ࠊ㧗࢔ࢫ࣌ࢡࢺẚࡢ 3 ḟඖᵓ㐀࠿ࡽࠊཎᏊᒙሁ✚(Atomic layer deposition: ALD)ἲ࡛ྛᒙࡀᙧᡂࡉࢀ࡚࠸ࡿࠋ
ࡋ࠿ࡋࠊ࣮࣍ࣝ┤ᚄࡢไ㝈࠿ࡽྛᒙࡢ≀⌮⭷ཌࡢపῶࡀᮃࡲࢀࠊ≉࡟ࠊࢳ࣮ࣕࢪࢺࣛࢵࣉᒙ࡜ࡋ࡚ SiN ࢆ㧗ㄏ㟁⋡࡞ᮦᩱ(High-k)࡬⨨ࡁ᥮࠼ࡿ◊✲ࡀ 10 ᖺ๓࠿ࡽ࡞ࡉࢀ࡚࠸ࡿࠋᡃࠎࡶࡇࡢほⅬ࠿ࡽࠊࡇࢀࡲ࡛ࠊHigh-k ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙ࡜ࡋ࡚ࠊ⤯⦕ᛶ࡟ඃࢀࠊ࠿ࡘ 500Υ௨ୗ࡛࢔ࣔࣝࣇ࢓ࢫᵓ㐀ࢆ⥔ᣢ࡛ࡁࡿ(Ta/Nb)Ox ᮦᩱ࡟╔┠ࡋ࡚ࠊࢺࣥࢿࣝᒙ/ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙ/ࣈࣟࢵ࢟ࣥࢢᒙ࡟ Al2O3/(Ta/Nb)Ox/Al2O3 ࢆ⏝࠸ࡓ◊✲ࢆࡋ࡚࠸ࡓࠋ᭱㏆ࠊ(Hf/Zr)Ox ࡢᙉㄏ㟁యᮦᩱࡀⓎぢࡉࢀࠊࡋ࠿ࡶࠊᚑ᮶ࡢᙉㄏ㟁యᮦᩱࡢ Pb(Zr/Ti)O3 ཬࡧ SrBi2Ta2O9 ࡟ẚ࡭࡚ࠊప㟁ᅽ࡛ᙉㄏ㟁≉ᛶࢆ♧ࡍࡇ࡜ࡀሗ࿌ࡉࢀࠊ
ࢺࣛࣥࢪࢫࢱཬࡧ࣓࣮ࣔࣜᛂ⏝࡬ྥࡅࡓ◊✲ࡀ┒ࢇ࡟ࡉࢀ࡚࠸ࡿࠋ
ࡋ࠿ࡋࠊࡇࡢ(Hf/Zr)Ox ᙉㄏ㟁యᮦᩱࢆࢳ࣮ࣕࢪࢺࣛࢵࣉᒙ࡬⏝࠸ࡓ◊✲ࡣ㠀ᖖ࡟ᑡ࡞ࡃࠊࡑࡢศᴟࢻ࣓࢖ࣥ࡜ὀ
ධࡉࢀࡓ㟁Ⲵࢺࣛࢵࣉࡢ㛵ಀ࡟ࡘ࠸࡚ࡣ᳨ウࡉࢀࡓሗ࿌౛ࡀ࡞࠿ࡗࡓࠋ
ࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊALD ἲ࡜⇕ฎ⌮ࢆ⤌ྜࡏࡓᙧᡂ᪉ἲ࡛ࠊࢺࣥࢿࣝᒙ/ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙ/ࣈࣟࢵ࢟ࣥࢢᒙ
࡟ Al2O3/(Hf/Zr)Ox/Al2O3 ࢆ⏝࠸ࡓ Pt ࢟ࣕࣃࢩࢱࢆస〇ࡋ࡚ࠊྛ✀⏺㠃ࡢ཯ᛂࠊྛᒙࡢ⤖ᬗᛶ࡟ࡘ࠸࡚ࠊ኱㜰኱Ꮫ᥋ྜ◊ᡤ᭷ࡢ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾㸦᪥ᮏ㟁Ꮚ〇 JEM-2010㸧࡛ Transmission Electron Microscope (TEM)ほᐹཬࡧ Energy
dispersive X-ray spectroscopy (EDS)ඖ⣲࣐ࢵࣉ࡟ࡼࡾゎᯒࡋ࡚㆟ㄽࡋࡓࠋ2. ◊✲᪉ἲᅗ 1 ࡟ࠊTEM ほᐹཬࡧ EDS ඖ⣲࣐ࢵࣉศᯒ࡟⏝࠸ࡓ
p-Si/Al2O3/(Hf/Zr)Ox/Al2O3/Pt࢟ࣕࣃࢩࢱࡢ᩿㠃⣲Ꮚᵓ㐀ࢆ♧ࡍࠋ࢟ࣕࣃࢩࢱࡢస〇᪉ἲࡣḟࡢ㏻ࡾ࡛࠶ࡿࠋ⮬↛㓟໬⭷ࢆᕼࣇࢵ㓟⁐ᾮ࡛㝖ཤࡋࡓ p-Si ᇶᯈୖ࡟ࠊALD ἲ࡛ࠊ⭷ཌ 8 nm ࡢ
Al2O3 ࢺࣥࢿࣝᒙࠊ⭷ཌ 10 nm ࡢ(Hf/Zr)Ox ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙ
ࢆᡂ⭷ࡋࡓᚋ࡟ࠊᙉㄏ㟁య┦ࢆᙧᡂࡍࡿࡓࡵ࡟ 600Υࡢ⇕ฎ⌮ࢆࡋࡓࠋ⥆࠸࡚ࠊALD ἲ࡛ࠊ⭷ཌ 8 nm ࡢ Al2O3 ⭷ࣈࣟࢵ࢟ࣥ
ࢢᒙࢆᡂ⭷ࡋࡓࠋ᭱ᚋ࡟ࠊPt 㟁ᴟࢆࣇ࢛ࢺࣜࢯࣉࣟࢭࢫ࡛ᙧ
ᡂࡋ࡚࢟ࣕࣃࢩࢱࢆస〇ࡋࡓࠋ⥆࠸࡚ࠊPt 㟁ᴟࡢ࠶ࡿ࢟ࣕࣃ
ࢩࢱ㒊ศࢆࠊFocused ion beam ຍᕤ࡟ࡼࡾษࡾฟࡋ࡚ TEM ヨᩱ࡜ࡋࡓࠋᅗ 1 p-Si/Al2O3/(Hf/Zr)Ox/Al2O3/Pt ࢟ࣕࣃࢩࢱࡢ
᩿㠃⣲Ꮚᵓ㐀

− 83 −

3. ⤖ᯝࡇࡢ࢟ࣕࣃࢩࢱࡢ㟁⏺ 15MV/cm ࡢ༳ྍ࡟ࡼࡿ㟁Ꮚὀධ࡟ࡼࡗ࡚ࠊ
ࣇࣛࢵࢺࣂࣥࢻ㟁ᅽ(Vfb)ࡣ⣙ 5V ࢩࣇࢺࡋࡓࠋ
ࡇࡢ್ࡣࠊࡇࢀࡲ࡛ሗ࿌ࡋࡓ(Ta/Nb)Ox ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙࡢሙྜ࡜࡯ࡰྠ➼࡛࠶ࡗࡓࠋࡲࡓࠊ(Hf/Zr)Ox ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙࡢ⭷ཌ࡜ Vfb ࢩࣇࢺࡢ㛵ಀࡼࡾࠊὀධࡉࢀࡓ㟁Ⲵࡣࠊ(Hf/Zr)Ox ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙ࡟ࡣ࡯࡜ࢇ࡝ࢺࣛࢵ
ࣉࡉࢀࡎࠊAl2O3 ࢺࣥࢿࣝᒙ/(Hf/Zr)Ox ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙࡢ⏺㠃ࠊ(Hf/Zr)Ox ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙ/ Al2O3 ⭷ࣈࣟࢵ࢟ࣥࢢᒙࡢ⏺㠃࡟ࢺࣛࢵࣉࡉࢀࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
ࡇࡢὀධࡉࢀࡓ㟁Ⲵࡢࢺࣛࢵࣉࢧ࢖ࢺࡢ㐪࠸ࢆ⌮ゎࡍࡿࡓࡵ࡟ࠊ᩿㠃 TEM ほᐹࡋࡓ⤖ᯝࢆᅗ㸰(a)࡟♧ࡍࠋAl2O3
ࢺࣥࢿࣝᒙཬࡧ Al2O3 ⭷ࣈࣟࢵ࢟ࣥࢢᒙࡣ࢔ࣔࣝࣇ࢓ࢫᵓ㐀ࢆ⥔ᣢࡋ࡚࠸ࡿࡢ࡟ᑐࡋ࡚ࠊ(Hf/Zr)Ox ࢳ࣮ࣕࢪࢺࣛࢵ
ࣉᒙࡣ㯤Ⰽࡢᯟ㒊ศ࡛᱁Ꮚࣃࢱ࣮ࣥࡀㄆࡵࡽࢀࠊከ⤖ᬗᵓ㐀࡛ᵓᡂࡉࢀ࡚࠸ࡓࠋ(Hf/Zr)Ox ⭷ࡢㄏ㟁⋡ࡣᐜ㔞-㟁ᅽᐃࡢࢹ࣮ࢱ࠿ࡽ⣙ 21 ࡢ㧗࠸್࡛࠶ࡗࡓࠋࡲࡓࠊAl2O3/(Hf/Zr)Ox ⭷ࡢ XRD ศᯒࡼࡾࠊ(Hf/Zr)Ox ⭷ࡣࠊTetragonalࠊ
OrthrombicࠊCubic ┦࡟㉳ᅉࡋࡓᙉ࠸ࣆ࣮ࢡཬࡧ Monoclinic ┦ࡢᙅ࠸ࣆ࣮ࢡࡀㄆࡵࡽࢀࡓࠋࡇࢀࡼࡾࠊ
Al2O3/(Hf/Zr)Ox/Al2O3 ࢫࢱࢵࢡᵓ㐀ࡢ(Hf/Zr)Ox ⭷ࡣࠊྠᵝࡢ⤖ᬗᵓ㐀࡛ᵓᡂࡉࢀ࡚࠸ࡿ࡜᥎ᐹࡉࢀࡿࠋ
ᅗ㸰(a)࡜ྠࡌ࢟ࣕࣃࢩࢱࡢ Hf L, Zr K ཬࡧ Al K ࡢ EDS ඖ⣲࣐ࢵࣉࢆᅗ㸰(b)࡟♧ࡍࠋAl2O3/(Hf/Zr)Ox/Al2O3 ࢫࢱࢵࢡᵓ㐀ࡢྛᒙࡢ⏺㠃࡛ࠊ㢧ⴭ࡞ඖ⣲ࡢ┦஫ᣑᩓࡶㄆࡵࡽࢀࡎࠊࡁࢀ࠸࡞⏺㠃ࢆ⥔ᣢࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋ

ᅗ㸰 Si/Al2O3/(Hf/Zr)Ox/Al2O3/Pt ࢟ࣕࣃࢩࢱࡢ (a) ᩿㠃 HR-TEM ീཬࡧ(b) EDS ඖ⣲࣐ࢵࣉ

4. ⤖ㄽ
(Hf/Zr)Ox ᙉㄏ㟁యࢳ࣮ࣕࢪࢺࣛࢵࣉᒙࢆ⏝࠸ࡓ Al2O3/(Hf/Zr)Ox/Al2O3 ࡢࢫࢱࢵࢡᵓ㐀ࡢ Pt ࢟ࣕࣃࢩࢱ࡛ࠊὀධ
㟁Ⲵࡀࢺࣛࢵࣉࡉࢀࡿ Al2O3 ࢺࣥࢿࣝᒙ/(Hf/Zr)Ox ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙࡢ⏺㠃ࠊ(Hf/Zr)Ox ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙ/Al2O3⭷ࣈࣟࢵ࢟ࣥࢢᒙࡢ⏺㠃ࡣࠊTEM ほᐹཬࡧ EDS ࣐ࢵࣉศᯒ࡛ࠊࡁࢀ࠸࡞⏺㠃ࢆ⥔ᣢࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡲ
ࡓࠊ(Hf/Zr)Ox ࢳ࣮ࣕࢪࢺࣛࢵࣉᒙࡣࠊ⤖ᬗ໬ࡋ࡚࠾ࡾࠊከ⤖ᬗ࡛ᵓᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀほᐹ࡛ࡁࡓࠋ௒ᚋࡣࠊࡇ
ࡢࢹ࣮ࢱࢆᇶ࡟ࠊศᴟࢻ࣓࢖ࣥࡢ᪉ྥ࡜㟁Ⲵࢺࣛࢵࣉࡢ㛵㐃ᛶࡢゎ᫂࡬⧅ࡆ࡚࠸ࡃࠋ

㸦ඹྠ◊✲ศ㔝㸸⁐᥋ᶵᵓᏛศ㔝㸧− 84 −

ᨵⰋ 9Cr-1Mo 㗰⁐᥋㒊ࡢᚤ⣽⤌⧊ほᐹ   ୍⯡㈈ᅋἲே Ⓨ㟁タഛᢏ⾡᳨ᰝ༠఍⁐᥋࣭㠀◚ቯ᳨ᰝᢏ⾡ࢭࣥࢱ࣮ すᕝ ⪽㸯㸬┠ⓗ㉸ࠎ⮫⏺ᅽⅆຊⓎ㟁ࣉࣛࣥࢺࡢ⵨Ẽ㓄⟶ࡸ㐣⇕⟶➼࡛ࡣ㸪ࢡ࣮ࣜࣉᙉᗘ࡟ඃࢀࡓ㧗ࢡ࣒ࣟ⣔⪏⇕㗰ࡀ౑⏝ࡉࢀ࡚࠾ࡾ㸪Nb ࠾ࡼࡧ V ࡢⅣ❅໬≀ࡢᚤ⣽ᯒฟ࡟ࡼࡾᙉ໬ࡉࢀ㸪ඃࢀࡓ㧗 ᙉᗘࢆ᭷ࡍࡿᨵⰋ 9Cr-1Mo 㗰㸦ⅆ STPA28㸪
Grade91㸧ࡀከ⏝ࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ᨵⰋ 9Cr-1Mo 㗰ࡢ⁐᥋㒊ࡣ㸪⁐᥋ࡢࡲࡲ࡛ࡣࡌࢇᛶࡀప࠸ 1)ࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࡓࡵ㸪ࡌࢇᛶྥୖ࡜⁐᥋ṧ␃ᛂຊࡢ㝖ཤࢆ┠ⓗ࡟⁐᥋ᚋ⇕ฎ⌮㸦௨ୗ㸪PWHT㸧ࢆ᪋ࡍࡇ࡜ࡀᚲせ୙ྍḞ࡟࡞ࡗ࡚࠸ࡿ㸬୍᪉㸪ࡌࢇᛶࡀྥୖࡍࡿ࡜࠸࠺ࡇ࡜ࡣ㸪㔠ᒓᮦᩱࡀ㧗ᘏᛶ࡟࡞ࡿࡇ࡜ࢆព࿡ࡋ࡚࠾ࡾ㸪⪏⇕㗰࡜ࡋ࡚୺せ࡞≉ᛶࡢ୍ࡘ࡛࠶ࡿࢡ࣮ࣜࣉᙉᗘࡀపୗࡍࡿᜍࢀࡀ࠶ࡿ㸬ࡇࡢࡼ࠺࡞ࡇ࡜࠿ࡽ㸪ᨵⰋ 9Cr-1Mo 㗰ࡢ PWHTᗘ࡜ࢡ࣮ࣜࣉᙉᗘࡢ㛵ಀ࡟ࡘ࠸࡚ㄪᰝࡋࡓ࡜ࡇࢁ㸪PWHT
2)ࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓ 㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪PWHT
࡚ TEM ほᐹࢆ⾜࠸㸪PWHT

ᗘࡀ 1033 K ௨ୖ࡟࡞ࡿ࡜ࢡ࣮ࣜࣉᙉᗘࡀ኱ᖜ࡟పୗ

ᗘࡀ 1033-1073 K ࡢࢡ࣮ࣜࣉ◚᩿㡿ᇦ࡟┦ᙜࡍࡿ㒊఩࡟ࡘ࠸ᗘࡀ 1033 K ௨ୖ࡟࡞ࡿ࡜ࢡ࣮ࣜࣉᙉᗘࡀ኱ᖜ࡟పୗࡍࡿ⌮⏤ࢆ᫂ࡽ࠿࡟ࡋࡓ㸬㸰㸬◊✲᪉ἲ
Table 1࡟౑⏝ࡋࡓẕᮦ㸦ⅆSTPA28㸧࡜⁐᥋ᮦᩱࡢ໬Ꮫᡂศࢆ♧ࡍ㸬⫗ཌ32 mmࡢ㓄⟶୰ኸ㒊ࡢ࿘᪉ྥ࡟㛤ඛຍᕤࢆ᪋ࡋ࡚TIG⁐᥋ࢆ⾜ࡗࡓ㸬⁐᥋᮲௳ࡣ㸪㟁ὶ190 A㸪㟁ᅽ14 V㸪⁐᥋㏿ᗘ1.67 mm/s㸪࣡࢖ࣖ㏦⤥㏿ᗘ0.17 g/s㸪ண⇕ࣃࢫ㛫 ᗘࢆ513-623 K࡜ࡋࡓ㸬ࡑࡋ࡚㸪〇సࡋࡓTIG⁐᥋⥅ᡭ࠿ࡽ⁐᥋㔠ᒓࢆ୰ᚰ࡟㍈᪉ྥ࠿ࡽ┤ᚄ18 mm㸪
㛗ࡉ80 mmࡢ୸Წヨ㦂∦ࢆ᥇ྲྀࡋ㸪ಖᣢ ᗘ1033-1073 K㸪ಖᣢ᫬㛫7.2-115.2 ks࡛PWHTࢆ᪋ࡋࡓ㸬࡞࠾㸪PWHT᫬ࡢ᪼ ㏿ᗘࡣ0.03 K/s㸪෭༷㏿ᗘࡣ0.04 K/s௨ୗ࡜ࡋࡓ㸬ࡑࡢᚋ㸪⣽⢏HAZ࡜⁐᥋㔠ᒓ࠿ࡽ㞟᮰࢖࢜ࣥࣅ࣮࣒ࢆ⏝࠸
࡚TEMほᐹ⏝ࡢⷧ⭷ヨ㦂∦ࢆస〇ࡋ㸪FE-TEMࢆ⏝࠸࡚ᚤ⣽⤌⧊ほᐹࢆ⾜ࡗࡓ㸬࡞࠾㸪FE-TEMほᐹࡣຍ㏿㟁ᅽ200kV࡛⾜࠸㸪ほᐹ᫬࡟ᐇ᪋ࡋࡓ࢚ࢿࣝࢠ࣮ศᩓᆺX⥺ศᯒ㸦EDS㸧ࡢࣅ࣮࣒ᚄࡣ⣙1 nm࡜ࡋࡓ㸬
Table 1 Chemical composition of base metal and filler wire (mass%)
C

Si

Mn

P

S

Cu

Cr

Mo

Ni

Nb

V

N

Base metal

0.11

0.24

0.46

0.008

0.001

㸫

8.81

0.97

0.15

0.07

0.19

0.041

Filler wire

0.07

0.15

0.99

0.006

0.004

0.04

8.97

0.88

0.67

0.04

0.17

0.020

㸱㸬⤖ᯝ
 Fig. 1 ࡟ PWHT ᫬ࡢಖᣢ᫬㛫ࡀ 7.2 ks ࡟࠾ࡅࡿ PWHTᗘ࡜ࢡ࣮ࣜࣉ◚᩿᫬㛫࡜ࡢ㛵ಀࢆ♧ࡍ 2)㸬PWHT

ᗘࡀ 1033 K ௨ୗ࡛ࡣ◚᩿᫬㛫࡟㢧ⴭ࡞ኚ໬ࡣぢࡽࢀ࡞࠸ࡀ㸪1033 K ௨ୖ࡟࡞ࡿ࡜◚᩿᫬㛫ࡀ኱ᖜ࡟▷ࡃ࡞ࡾ㸪
1073 K ࡛ࡣ 1033 K ࡢ⣙ 1/7 ࡛࠶ࡗࡓ㸬ࡲࡓ㸪PWHT
ᗘࡀ 1053 K ௨ୗ࡛ࡣ⣽⢏ HAZ ࠿ࡽ◚᩿ࡋࡓࡢ࡟ᑐࡋ㸪
1073 K ࡛ࡣ⁐᥋㔠ᒓ࠿ࡽ◚᩿ࡋࡓ㸬ࡑࡢࡓࡵ㸪FE-TEM
࡟ࡼࡿᚤ⣽⤌⧊ほᐹࢆ⾜࠸㸪PWHT

ᗘࡀ 1033 K ௨ୖ࡛ࢡ࣮ࣜࣉᙉᗘࡀపୗࡍࡿ⌮⏤ࢆ᳨ウࡋࡓ㸬Fig. 2 ࡟⣽
⢏ HAZ ࡜⁐᥋㔠ᒓࡢ TEM ࡢ᫂ど㔝ീ㸪࠾ࡼࡧ Cr ࡜ V
ࡢ EDS ࡟ࡼࡿศᯒ⤖ᯝࢆ♧ࡍ㸬 Cr ࡜ V ࡢ⃰ᗘศᕸ࡟

Fig. 1 Effect of PWHT temperature on creep rupture time of uniaxial− 85 −

creep test for 108 MPa at 893 K.2)

࠾࠸࡚㸪᫂ࡿ࠸⟠ᡤࡀ⃰໬ࡋࡓ㒊ศ࡛࠶ࡿ㸬㐣ཤࡢ◊✲ 3)ࡼࡾ㸪Cr ࡜ V ࡀ⃰໬ࡋࡓ㡿ᇦࡣ㸪ྛࠎM23C6 ࡜ VN ࡛࠶ࡿ࡜⪃࠼ࡽࢀ㸪
PWHTᗘࡢୖ᪼࡟క࠸⣽⢏ HAZ ࡟࠾ࡅࡿࡇࢀࡽࡢᯒฟ≀ࡀ⢒኱໬ࡋ࡚࠸ࡓ㸬ࡲࡓ㸪⁐᥋㔠ᒓ࡛◚᩿ࡋࡓ PWHT

ᗘ 1073 K ࡛ࡣ㸪⁐᥋㔠ᒓࡢ M23C6 ࡣ⣽⢏ HAZ ࡢ⣙ 2 ಸࡢᑍἲ࡛࠶ࡗࡓ㸬ࡇࡢࡼ࠺࡟⁐᥋㔠ᒓࡢ
M23C6 ࡀ⢒኱࡟࡞ࡿࡢࡣ㸪จᅛ೫ᯒ࡛ C ࡀ㧗⃰ᗘ࡟࡞ࡿ㡿ᇦࡀᙧᡂࡉࢀࡿࡇ࡜࡟㉳ᅉࡍࡿ࡜⪃࠼ࡽࢀࡿ㸬௨ୖࡼࡾ㸪1033 K ௨ୖ࡛ࢡ࣮ࣜࣉᙉᗘࡀపୗࡋࡓࡢࡣ㸪M23C6 ࠾ࡼࡧ VN ࡢ⢒኱໬࡟ࡼࡾ࣐ࢺࣜࢵࢡࢫࡢᅛ⁐ᙉ໬࠾ࡼࡧᯒฟᙉ໬ࡀపୗࡋࡓࡇ࡜࡛㌿఩ࡢ⛣ືࡀᐜ᫆࡟࡞ࡿࡓࡵ࡜᥎ᐹࡉࢀࡿ㸬㸲㸬⤖ㄽ⪏ࢡ࣮ࣜࣉ≉ᛶ࡟ඃࢀࡓᨵⰋ 9Cr-1Mo 㗰
㸦ⅆ STPA28㸧ࡢ⁐᥋㒊ࡀ PWHT

ᗘ 1033 K௨ୖ࡛ࢡ࣮ࣜࣉᙉᗘࡀపୗࡋࡓࡢࡣ㸪M23C6
࠾ࡼࡧ VN ࡢ⢒኱໬࡟ࡼࡾ࣐ࢺࣜࢵࢡࢫࡢ
ᅛ⁐ᙉ໬࠾ࡼࡧᯒฟᙉ໬ࡀపୗࡋࡓࡇ࡜࡛

Fig. 2 TEM micrographs and Cr, V distribution in FGHAZ and weld metal.

㌿఩ࡢ⛣ືࡀᐜ᫆࡟࡞ࡿࡓࡵ࡜᥎ᐹࡉࢀࡿ㸬㸳㸬ཧ⪃ᩥ⊩
1) ᇼ஭⾜ᙪ, すᕝ⪽, బ⸨ṇಙ, ᮧᕝⱥ୍, ứᘓ⳹: 㓄⟶࿘⥅ᡭᒁ㒊⁐᥋ᚋ⇕ฎ⌮᫬ࡢຍ⇕᮲௳ࡢ㐺ṇ໬, ⅆຊཎᏊຊⓎ㟁, No. 585 Vol. 56 (2005), 559-568.
2) すᕝ ⪽, 㰺⸨ ┤ᶞ, 㧗ᶫ ㄔ: ᨵⰋ 9Cr-1Mo 㗰⁐᥋⥅ᡭࡢࢡ࣮ࣜࣉᙉᗘ࡟ཬࡰࡍ PWHT ᮲௳ࡢᙳ㡪, ➨ 54 ᅇ㧗ᙉᗘࢩ࣏ࣥࢪ࣒࢘๓ๅ㞟 (2016), 146-149.
3) すᕝ ⪽㸪኱໭ ⱱ㸪ᇼ஭ ⾜ᙪ: 㛗ᮇ㛫⇕᫬ຠࡉࢀࡓᨵⰋ 9Cr-1Mo 㗰⁐᥋㔠ᒓࡢࡌࢇᛶᅇ᚟࡜㟁Ẽ໬Ꮫィ ࡟ࡼࡿホ౯, ⁐᥋Ꮫ఍ㄽᩥ㞟, 26-3 (2008), 220-226.
㸦ඹྠ◊✲ศ㔝㸸⁐᥋ᶵᵓᏛศ㔝㸧− 86 −

Ỉ୰⾪ᧁἼࢆ⏝࠸ࡓ㧗ᶵ⬟ⷧᯈᮦᩱࡢ᥋ྜ࡟ࡼࡿ␗ᮦ⏺㠃ࡢホ౯⇃ᮏ኱Ꮫࣃࣝࢫࣃ࣮࣡⛉Ꮫ◊✲ᡤ እᮏ ࿴ᖾᓫᇛ኱ᏛᕤᏛ㒊ᶵᲔᕤᏛ⛉ ᳃ ᫛ᑑ  ி㒔኱Ꮫ࢚ࢿࣝࢠ࣮⌮ᕤᏛ◊✲ᡤ ➟⏣ ❳ኴ㸯㸬┠ⓗ ⇿Ⓨᅽ᥋ࡣ⇿Ⓨࡢ࢚ࢿࣝࢠ࣮ࢆ⏝࠸ࡓᅛ┦᥋ྜᢏ⾡࡛࠶ࡿ㸬⿕᥋ྜᮦࢆ⁐࠿ࡍ⁐⼥⁐᥋ἲ࡛ࡣ᥋ྜࡀᅔ㞴࡞␗ᮦ᥋ྜ㸪౛࠼ࡤ⼥Ⅼࡀ኱ࡁࡃ␗࡞ࡿ㔠ᒓྠኈ࡞࡝ࡢ᥋ྜ࡟᭷฼࡜⪃࠼ࡽࢀࡿ㸬ࡓࡔࡋ㸪㧗⼥Ⅼ㑄⛣㔠ᒓ࡜ &X ࡞࡝ࡢ⤌ྜࡏ࡛ࡣ㐺ᙜ࡞᥋ྜ᮲௳ࡀᏑᅾࡏࡎ㸪㔠ᒓⷧᯈࢆᆒ୍࠿ࡘ㧗㏿࡟ຍ㏿ࡉࡏࡿỈ୰⾪ᧁἼࢆ⏝࠸ࡓ⇿Ⓨᅽ᥋ἲࡀሗ
࿌ࡉࢀ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪Ỉ୰⾪ᧁἼࢆ⏝࠸ࡓ⇿Ⓨᅽ᥋ἲ࡟ࡼࡾ㸪➨  ᪘࡟ᒓࡍࡿ㧗⼥Ⅼ㑄⛣㔠ᒓࡢ 1E ࡜ 7Dࢆࡑࢀࡒࢀ &X ࡟᥋ྜࡋ㸪᥋ྜ⏺㠃࡟ᙧᡂࡍࡿᚤ⣽⤌⧊ࡢほᐹ࣭ゎᯒࢆ⾜ࡗࡓ㸬1E&X ࡜ 7D&X ஧ඖ⣔≧ែᅗ࡟ࡣ୰㛫┦ࡀᏑᅾࡋ࡞࠸ࡓࡵ㸪㧗 ࣭㧗ᅽ࡞⇿Ⓨᅽ᥋᥋ྜ㞺ᅖẼࡸ㸪␗࡞ࡿ࿘ᮇ ␗࡞ࡿཎᏊ㔞ࡸ⼥Ⅼ ࡀ␗ᮦ᥋ྜ⏺㠃ᙧᡂ࡟ཬࡰࡍᙳ㡪ࢆ᳨ウࡋ᫆࠸࡜⪃࠼ࡓ㸬㸰㸬◊✲᪉ἲ Ỉ୰⾪ᧁἼࢆ⏝࠸ࡓ⇿Ⓨᅽ᥋ᡭἲ࡟ࡘ࠸࡚ࡣ௚࡟ヲ⣽ࡀグࡉࢀ࡚࠸ࡿ  㸬ᮏ◊✲࡛ࡣ㸪⇿⸆࡟ 6(3 ࢝ࣖࢡࢪࣕ
ࣃࣥ♫〇㸪⇿㏿⣙ NPV㸪ᐦᗘ NJP ࢆ⏝࠸㸪ᕥ➃ࡢ㞾⟶࡟ࡼࡗ࡚㉳⇿ࡋࡓ㸬ࡇࡇ࡛㸪⇿⸆ࡢึᮇഴᩳゅࡣȘ r㸪⇿⸆࡜ヨᩱࡢᖹᆒ㊥㞳 ' ࢆ PP㸪ࣇࣛ࢖࣮ࣖࣉ࣮ࣞࢺ࡜࣮࣋ࢫࣉ࣮ࣞࢺࢆᖹ⾜࡟タ⨨ࡋࡓ㸬࣮࣋ࢫࣉ࣮ࣞࢺࢆ PP ཌࡢᕤᴗ⏝⣧ &X ᯈ࡜ࡋ㸪ࣇࣛ࢖࣮ࣖࣉ࣮ࣞࢺࡢ㔠ᒓⷧᯈ࡜ &X ᯈࡢ㛫㝸ࢆ PP ࡜ࡋࡓ㸬㔠ᒓⷧᯈ࡟ࡣ [PP ࡢ㠃✚ࢆ᭷ࡍࡿ PP ཌࡢ 1E ᯈ࡜ PP ཌࡢ 7D ᯈࢆ㑅ᢥࡋࡓ㸬㔠ᒓⷧᯈୖ࡟ࡣ PP ཌࡢ
686㗰〇࢝ࣂ࣮ࣉ࣮ࣞࢺࢆタ⨨ࡋࡓ㸬ᅗ  ࡜ᅗ  ࡟⇿Ⓨᅽ᥋ࡉࢀࡓ 1E&X ࢡࣛࢵࢻᮦ࡜ 7D&X ࢡࣛࢵࢻᮦࢆ♧ࡍࠋࡇࢀࡽࢡࣛࢵࢻᮦ࠿ࡽ㸪⇿Ⓨ᪉ྥ࡟ᑐࡋ࡚ᖹ⾜࡜ᆶ┤࡜࡞ࡿᅗ୰ࡢ  ࠿ࡽ㸴ࡢ␒ྕࢆグࡋࡓࡑࢀࡒࢀࡢ⟠ᡤ࠿ࡽ᩿㠃⤌⧊ほᐹヨᩱࢆྲྀᚓࡋ㸪ᚤ⣽⤌⧊ほᐹ࡟౪ࡋࡓ㸬ᚤ⣽⤌⧊ほᐹ࡟ࡣ㸪ගᏛ㢧ᚤ㙾㸪㉮ᰝᆺ࣭㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾 6(0࣭7(0 ࡜௜ᒓࡍࡿ࢚ࢿࣝࢠ࣮ศᩓᆺ ; ⥺ศග ('6 ࡜ᚋ᪉ᩓ஘㟁Ꮚᅇᢡ (%6' ᳨ฟჾࢆ⏝࠸ࡓ㸬㸱㸬⤖ᯝ࡜⪃ᐹ 1E&X ࡜ 7D&X ⇿Ⓨᅽ᥋⏺㠃ࡢගᏛ㢧ᚤ㙾ീ࡛ࡣ㸪ඹ࡟ᚤᑠ๭ࢀ࡞࡝ࡢḞ㝗ࡀほᐹࡉࢀࡎ㸪␗ᮦ⏺㠃࡟ẕᮦ࡜␗࡞ࡿࢥࣥࢺࣛࢫࢺࡢᒙࡀ㐃⥆ⓗ࡟ᙧᡂࡋ࡚࠸ࡓ㸬␗ᮦ⏺㠃ࡣ࡜ࡶ࡟Ἴ≧࡜࡞ࡾ㸪7D&X ⏺㠃࡛ࡢἼࡢ᣺ᖜ࡜Ἴ㛗࠾ࡼࡧୖグࡢ⏺㠃ᒙཌࡉࡣ 1E&X ⏺㠃ࡼࡾᑠࡉࡃ࡞ࡗࡓ㸬௒ᅇࡢ⇿Ⓨᅽ᥋᮲௳ୗ࡛ࡣ㸪⇿Ⓨᅽ᥋ࡢ᭱ึ࡜⤊ࢃࡾࡢ఩⨨ࢆ㝖࠸୍࡚ᵝ࡞Ἴ≧ࡢẕᮦ᥋ྜ⏺㠃࡜ࠊࡑࡢ⏺㠃࡟㐃⥆࣭୙㐃⥆࡞ሢ࠶ࡿ࠸ࡣἼ≧ࡢ୰㛫ᒙࡀほᐹࡉࢀࡓ㸬 ୖグ௦⾲ⓗ࡞᥋ྜ⏺㠃࠿ࡽᚓࡓ᩿㠃 6(0 ീ ⇿Ⓨᅽ᥋㐍⾜᪉ྥ࡟ᖹ⾜࡞㠃 ࢆᅗ  D  H ࡟♧ࡍ㸬ୖグࡢගᏛ㢧ᚤ㙾ほᐹ⤖ᯝ࡜ྠᵝ࡟ࠊ᥋ྜ⏺㠃࡟ẕᮦ࡜␗࡞ࡿࢥࣥࢺࣛࢫࢺࡢ୰㛫ᒙࡀほᐹࡉࢀࡓ㸬୰㛫ᒙࡢᙧ≧ࡣ㸪1E&X ⏺
㠃࡛ࡣሢ≧ ᅗ  D ࡛㸪7D&X ⏺㠃࡛ࡣἼ≧ ᅗ  E ࡜࡞ࡾ㸪ࡑࡢ኱ࡁࡉࡣ 1E&X ⏺㠃ࡢ୰㛫ᒙ࡜ẚ㍑ࡋ࡚ᑠࡉ࠿ࡗࡓ㸬ࡑࢀࡽ୰㛫ᒙࡢホ౯ࡢࡓࡵ㸪ᅗ  D  H ࡢⓑᯟ⠊ᅖ࠿ࡽ (%6' ᝟ሗࢆྲྀᚓࡋࡓ㸬ᅗ  E  I ࡟᥋ྜ⏺㠃
࿘㎶ࢆ %&& ᵓ㐀࡜ )&& ᵓ㐀࡟Ⰽศࡅࢆࡋࡓᅗࢆ♧ࡍ㸬࡝ࡕࡽࡢ᥋ྜ⏺㠃࡟࠾࠸࡚ࡶ㸪୰㛫ᒙࡢ኱㒊ศࢆ㉥Ⰽ࡛♧ࡍ
&X ࡀ༨ࡵ㸪ࡑࡢ୰࡟⥳Ⰽ࡛♧ࡋࡓ %&& ᵓ㐀ࡢ 1E ࡸ 7D ࡜ุูࡉࢀࡿᑠࡉ࠸㡿ᇦࡀᏑᅾࡋࡓ㸬ḟ࡟㸪ᅗ  F  J࡟ྠ㡿ᇦࡢ⤖ᬗ᪉఩࣐ࢵࣉࢆ♧ࡍ㸬1E&X ⏺㠃ࡢ୰㛫ᒙࡢሢࡣ  ࡘࡢ␗࡞ࡿ⤌⧊ᙧែࢆ♧ࡋ㸪ୖഃࡢⷧࡃᆒ୍࡞ཌ
ࡳࡢ㡿ᇦ࡛ࡣ⢒኱࡞ᰕ≧ᬗࡀᅽ᥋᪉ྥ࡜ࡣᆶ┤࡟ᡂ㛗ࡋ࡚࠾ࡾ㸪ࡑࡢୗࡢ࣎ࢱࣥᙧ≧ࡢ㡿ᇦ࡛ࡣᚤ⣽࡛⦪㛗ࡢ⤖ᬗ⢏ࡀୗ᪉ྥ࡟Ἴ㠃≧࡟ᗈࡀࡿࡼ࠺࡟ศᕸࡋ࡚࠸ࡓ ᅗ  F 㸬ୖഃࡣ≀⌮⵨╔ࡋࡓⷧ⭷ࡢᰕ≧ᬗ⤌⧊ࡢࡼ࠺࡛࠶ࡾ㸪ୗഃࡣ࢔࣮ࢡ⁐ゎᚋ࡟จᅛࡋࡓ࣎ࢱࣥ࢖ࣥࢦࢵࢺ⤌⧊ࡢࡼ࠺࡛࠶ࡿ㸬୍᪉㸪7D&X ⏺㠃ࡢ୰㛫ᒙࡢሢ࡛ࡣ㸪1E&X⏺㠃୰㛫ᒙࡢୖഃࡢ㡿ᇦ࡜ྠᵝ࡞⢒኱ᰕ≧⤌⧊ࡀᙧᡂࡉࢀ ᅗ  J 㸪᥋ྜ᫬࡟⁐⼥ࡀ㉳ࡇࡗ࡚࠸࡞࠸࡜᥎ ࡉࢀࡿ㸬− 87 − ࡑࡇ࡛㸪⏺㠃⤌⧊ᙧᡂࢆ⪃ᐹࡍࡿࡓࡵ࡟ 7(0 ほᐹࢆ⾜࠸㸪ࡑࡢ⤖ᯝࢆᅗ  G  K ࡟♧ࡍ㸬1E&X ⏺㠃ࡢ࣎ࢱࣥᙧ≧ࡢ㡿ᇦ࡛ࡣ㸪1E ⢏ࡢࢹࣥࢻࣛ࢖ࢻ≧ࡢᶍᵝࡀࡳࡽࢀ㸪⁐⼥࣭จᅛ㐣⛬ࢆ⤒࡚ᙧᡂࡋࡓ⤌⧊࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋࡓ㸬ࡑࡢࢹࣥࢻࣛ࢖ࢻ୰ࡢ㯮࠸ࢥࣥࢺࣛࢫࢺࡢ㒊ศ࠿ࡽ1E࡜&Xࡢྛ⤖ᬗᵓ㐀࡟⏤᮶ࡍࡿᅇᢡࣃࢱ࣮ࣥࡀぢࡽࢀ㸪ࡼࡾ㧗ಸほᐹ࡛ࡣᚤ⣽࡞  ┦ศ㞳⤌⧊ࡀ☜ㄆࡉࢀࡓ㸬1E 㔞ࡀከ࠸࡜㯮࠸ࢥࣥࢺࣛࢫࢺࢆ♧ࡍ㸬୍᪉㸪7D&X ⏺㠃ࡢ⢒኱࡞ᰕ≧ᬗ୰࡛ࡣ㸪7D ࡜ &X ࡢ  ┦ศ㞳㡿ᇦ࡟ຍ࠼࡚㸪㠀ᖹ⾮࡞㔠ᒓ㛫໬ྜ≀ ,0& ┦࡜ &X ࡜ࡢΰྜ㡿ᇦࡀほᐹࡉࢀࡓ㸬7D ࡸ 7D㸫,0& ࡣ 1E&X ⏺㠃࡛ࡢࡼ࠺࡞ࢹࣥࢻࣛ࢖ࢻ≧ࡢᶍᵝࢆ♧ࡋ࡚࠾ࡽࡎ㸪7D ࡸ 7D㸫,0& ࡣ⁐⼥ࢆ⤒ࡎ࡟⤌⧊ᙧᡂࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬ᅗ  K ࡟㸪&X ࡜ ,0& ࡢΰྜ㡿ᇦࢆ♧ࡍ㸬7D ࡣ㟁Ꮚࢆ㏱㐣ࡋ࡟ࡃࡃ㸪㯮࠸ࢥࣥࢺࣛࢫࢺࡣ 7D 㔞ࡀ௚ࡼࡾከ࠸ࡇ࡜ࢆ♧ࡍ㸬㉥୸㡿ᇦ࠿ࡽᚓࡽࢀࡓ 6$' ീ࡛ࡣ㸪㠃ᣦᩘࡀグࡉࢀࡓᅇᢡᩬⅬࡀ &X ࢆ㸪▷࠸㛫㝸࡛࿘ᮇⓗ࡟ᩚิࡋࡓᅇᢡᩬⅬࡀ ,0& ࢆ♧ࡍ㸬୰ኸࡢ᫂ࡿ࠸෇≧࡟㓄ิࡋࡓ  ಶࡢᅇᢡᩬⅬࡣ  ᅇᑐ⛠ࡢ‽⤖ᬗࢆ♧ࡋ㸪‽⤖ᬗ࡜ ,0& ࡀ㢮ఝᵓ㐀ࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿ㸬

ᅗ 1 Ỉ୰⾪ᧁἼࢆ⏝࠸࡚⇿Ⓨᅽ᥋ࡋࡓ Nb/Cuࢡࣛࢵࢻᮦ㸬

ᅗ 2 Ỉ୰⾪ᧁἼࢆ⏝࠸࡚⇿Ⓨᅽ᥋ࡋࡓ Ta/Cuࢡࣛࢵࢻᮦ㸬

ᅗ 3 Ỉ୰⾪ᧁἼࢆ⏝࠸࡚⇿Ⓨᅽ᥋ࡋࡓ Nb/Cu ⏺㠃࡜ Ta/Cu ⏺㠃ࡢࠊࡑࢀࡒࢀ(a),(e) ᩿㠃 SEM ീ㸪(b),(f) EBSD ┦ศᕸᅗ㸪(c),(g) EBSD ㏫
ᴟⅬᅗ㸪(d),(h) TEM ᫂ど㔝ീ࡜୸༳ෆ࠿ࡽᚓࡽࢀࡓไ㝈ど㔝ᅇᢡീ.

㸲㸬⤖ㄽ Ỉ୰⾪ᧁἼࢆ⏝࠸ࡓ⇿Ⓨᅽ᥋࡟ࡼࡾ㸪⬤࠸ Nb ࡸ Ta ࡢⷧᯈࢆ Cu ᯈୖ࡟᥋ྜࡍࡿࡀ࡛ࡁࡓ㸬᥋ྜ⏺㠃ࡣἼ≧࡟ኚᙧࡋ㸪Nb ࡸ Ta ࡜ Cu ࡀΰྜࡋࡓ㡿ᇦࡀἼ≧࠶ࡿ࠸ࡣሢ≧࡟Ꮡᅾࡋ࡚࠸ࡓ㸬Nb/Cu ⏺㠃࡛ࡣᚤ⣽࡞ Nb ࡜ Cu ࡢ 2┦ศ㞳ࡀ㸪Ta/Cu ⏺㠃࡛ࡣ㠀ᖹ⾮࡞ Ta 㔠ᒓ㛫໬ྜ≀࡜ Cu ࡜ࡢ 2 ┦ศ㞳ࡀほᐹࡉࢀ㸪⇿Ⓨᅽ᥋᫬ࡢ⾪✺㏿ᗘࡣྠᵝ࡟ࡶ࠿࠿ࢃࡽࡎ㸪Nb ࡜ Ta ࡛㐪࠸ࡀぢࡽࢀࡓ㸬㸳㸬ཧ⪃ᩥ⊩㸸 1) P. Manikandan, et al., J. Nuclear Mater. 418 (2011) 281-285.
㸦ඹྠ◊✲ศ㔝㸸⁐᥋ᶵᵓᏛศ㔝㸧− 88 −

⇕㟁ࢭ࣑ࣛࢡࢫᮦᩱ࡟ᑐࡍࡿ㟁ᴟ᥋ྜ⏺㠃ホ౯⚄ᡞ኱ᏛᕤᏛ◊✲⛉ᶵᲔᕤᏛᑓᨷ⏣୰ ඞᚿ㸯㸬┠ⓗ 㓟⣲Ḟᦆᆺࢳࢱࣥ㓟໬≀ࡣࡑࡢ↓ḟඖᛶ⬟ᣦᩘࡀ᭱㧗࡛ 0.13 ࡜ẚ㍑ⓗ኱ࡁ࠸ n ᆺࡢ⇕㟁ኚ᥮ᮦᩱ࡛࠶ࡿࠋࡇࡢ
ᮦᩱࡣࢳࢱࣥ࡜㓟⣲࡜࠸࠺࠶ࡾࡩࢀࡓඖ⣲ࡢࡳ࠿ࡽᵓᡂࡉࢀࡿࡇ࡜࠿ࡽ㸪IoT ♫఍࡟ྥࡅࡓࢭࣥࢧ࡞࡝ࢆ㥑ືࡍࡿ⎔ቃ㈇Ⲵࡀᑠࡉ࡞㟁※࡬ࡢ㐺⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽ㸪㟁ὶࢆྲྀࡾฟࡍࡓࡵ࡟ࡣ㟁Ẽఏᑟᛶ࣭ᶵᲔⓗᙉᗘ࡟ඃࢀࡓ㟁ᴟᮦࢆ᥋ྜࡋ࡞ࡅࢀࡤ࡞ࡽ࡞࠸ࠋᮏ◊✲࡛ࡣ㸪ᵓᡂඖ⣲ࡢ∦᪉࡛࠶ࡿ㔠ᒓࢳࢱࣥࢆ㟁ᴟᮦ࡜ࡋ࡚⏝࠸ࡓሙྜࡢ㟁Ẽఏᑟᛶ࡜๤㞳࡟ᑐࡍࡿᶵᲔⓗᙉᗘࢆホ౯ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲᪉ἲ
 TiO2 ࡜ TiO ࡢ⢊ᮎࢆ TiO1.9 ࡢ⤌ᡂ࡟࡞ࡿࡼ࠺࡟⛗㔞ᚋ㸪㐟ᫍᆺ࣮࣑࣎ࣝࣝࢆ⏝࠸࡚⢊○࣭ΰྜࡋࡓ㸬ΰྜ≀ࢆ௬↝ࡍࡿࡇ࡜࡛཯ᛂࡉࡏ TiO1.9 ࡜ࡋࡓᚋ㸪ࢢࣛࣇ࢓࢖ࢺࢲ࢖ࢫࢆ⏝࠸࡚┿✵୰ 1200Υ࡟࠾࠸࡚ 50MPa ࡢᅽ⦰ᛂຊୗ
࡛࣍ࢵࢺࣉࣞࢫฎ⌮ࢆ⾜࠸⦓ᐦ࡞↝⤖యࢆᚓࡓ㸬㟁ᴟᮦ࡜ࡋ࡚ᕤᴗ⏝⣧ࢳࢱࣥᯈࢆ⏝࠸⾲㠃ࢆᖹ㠃◊☻ᚋ㸪↝⤖య࡜ 5MPa ࡢᅽ⦰ᛂຊࡢୗ࡛ 10 ศ㛫ࡢ⇕ฎ⌮࡟ࡼࡾᣑᩓ᥋ྜࢆヨࡳࡓ㸬㸱㸬⤖ᯝ ᣑᩓ᥋ྜࢆࡇࡢࢭ࣑ࣛࢡࢫᮦᩱ࡟ᑐࡋ࡚ࡣẚ㍑ⓗప ࡛࠶ࡿ 800Υ࡜ࡋࡓሙྜ࡟ࡣ඲ࡃ᥋ྜࡋ࡞࠿ࡗࡓ㸬୍᪉㸪ᣑᩓ᥋ྜ ᗘࢆ㓟⣲Ḟᦆᆺࢳࢱࣥ㓟໬≀ࡢ࣍ࢵࢺࣉࣞࢫฎ⌮࡜ྠࡌ ᗘ࡛࠶ࡿ 1200Υ࡜ࡋࡓሙྜࡣ㸪ᙉᅛ࡟᥋ྜ
ࡋ㸪㟁Ẽⓗ࡟ࡶⰋᑟయࡢ࣮࣑࢜ࢵࢡ᥋ྜࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓ㸬᥋ྜ㒊ࡢ᩿㠃ࢆほᐹࡍࡿࡓࡵ࡟᥋ྜయࡢษ᩿ࢆヨࡳࡓࡀ㸪ษ᩿᫬࡟㓟⣲Ḟᦆᆺࢳࢱࣥ㓟໬≀ෆ࡛๭ࢀࡀ⏕ࡌࡿࡇ࡜࡛๤㞳ࡋࡓ㸬ࡇࡢࡇ࡜ࡼࡾ㸪㓟⣲Ḟᦆᆺࢳࢱࣥ㓟໬≀࡜㔠ᒓࢳࢱࣥᯈࡢ᥋ྜ⏺㠃ࡣ㓟⣲Ḟᦆᆺࢳࢱࣥ㓟໬≀ࡢ◚ቯᙉᗘࡼࡾࡶ኱ࡁ࡞◚ቯᙉᗘࢆᣢࡗ࡚࠸ࡿࡇ࡜ࡀ᫂
ࡽ࠿࡟࡞ࡾ㸪㓟⣲Ḟᦆᆺࢳࢱࣥ㓟໬≀࡟ᑐࡋ࡚ᮏ᥋ྜ᪉ἲࡸ㔠ᒓ Ti ⟩ࢆ⏝࠸ࡓ௚ࡢ㔠ᒓ࡜ࡢ㛫ࡢᣑᩓ᥋ྜࡀྍ⬟ᅗ 1 Ti / TiO1.9 ᥋ྜ⏺㠃ࡢ᩿㠃ほᐹࠋ− 89 −

࡛࠶ࡿࡇ࡜ࢆ♧ࡍࡇ࡜ࡀ࡛ࡁࡓ㸬ᅗ㸯࡟ࢳࢱࣥᯈୖ࡟ṧ␃ࡋࡓ TiO1.9 ࡀᏑᅾࡋࡓ㒊ศ㸪ࡍ࡞ࢃࡕⰋዲ࡞ᣑᩓ᥋ྜ⏺
㠃ࡀᚓࡽࢀࡓ㒊ศࡢ᩿㠃ほᐹ⤖ᯝࢆ♧ࡍ㸬ࢳࢱࣥᯈୖ࡟ TiO1.9 ࡀᐦ╔ࡋ࡚᥋ྜࡉࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬᥋ྜ㒊ศࡢᙧ≧ࡼࡾ㸪1200Υ࡛ࡢᣑᩓ᥋ྜ㐣⛬࡟࠾࠸࡚ࡣ TiO1.9 ↝⤖యࡢረᛶኚᙧ࡟ࡼࡗ࡚ Ti ᯈୖ࡟Ⰻዲ࡟ᅽ᥋ࡉࢀࡓ≧ែ࡟࡞ࡿࡇ࡜࡛༑ศ࡞ᣑᩓ᥋ྜࡀ⾜ࢃࢀࡓࡇ࡜ࡀศ࠿ࡗࡓ㸬௒ᚋ⇕ฎ⌮ ᗘࢆపୗࡉࡏࡿࡓࡵ࡟ࡣ㸪᥋ྜ➃㠃ฎ⌮ࡸ㔠ᒓࢳࢱࣥࢆࢫࣃࢵࢱ➼࡟ࡼࡗ࡚௜╔ࡉࡏࡿࡇ࡜࡟ࡼࡾረᛶኚᙧࡀ⏕ࡌ࡞ࡃ࡚ࡶ༑ศⰋዲ࡞ᅽ᥋≧ែ࡜ࡍࡿࡇ࡜ࡀ㔜せ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬㸲㸬⤖ㄽ 㓟⣲Ḟᦆᆺࢳࢱࣥ㓟໬≀࡟ᑐࡍࡿ࣮࣑࢜ࢵࢡ᥋ྜᮦ࡜ࡋ࡚㔠ᒓࢳࢱࣥࢆᣑᩓ᥋ྜࡍࡿ᪉ἲࢆヨࡳࡓ⤖ᯝ㸪᥋ྜ⏺
㠃ࡣ༑ศ࡞ᶵᲔⓗᙉᗘࢆᣢࡕ㸪࠿ࡘ㟁Ẽⓗ࡞≉ᛶࡶⰋዲ࡞᥋ྜࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ

㸦ඹྠ◊✲ศ㔝㸸⁐᥋ᶵᵓᏛศ㔝㸧− 90 −

㕲㗰ᮦᩱ࡬ࡢ㐺⏝ࢆ⪃៖ࡋࡓ᥋ྜࢶ࣮ࣝྛ㒊ࡢホ౯㏆␥኱Ꮫ ᕤᏛ㒊⏕⏣ ᫂ᙪ
1. ┠ⓗ 㕲㗰ᮦᩱࡢᦶ᧿ᨩᢾⅬ᥋ྜ࡟࠾࠸࡚㸪㐺ࡍࡿࢶ࣮ࣝᙧ≧ࡢᣦ㔪ࡣᮍࡔᐃࡲࡗ࡚࠸࡞࠸ࡢࡀᐇ᝟࡛࠶ࡿ㸬ࡇࢀࡣ㸪ࢶ࣮ࣝࡢᨩᢾ⬟ຊ㸪⪏ஂᛶ㸪⤒῭ᛶ࡞࡝」ᩘࡢせᅉࢆࣂࣛࣥࢫⰋࡃ‶ࡓࡍࡇ࡜ࡀ㞴ࡋ࠸ࡇ࡜ࡀᣲࡆࡽ
ࢀࡿ㸬ࡇࢀࡲ࡛࡟ᚓࡽࢀࡓ⤖ᯝ࠿ࡽ1)㸪ࢶ࣮ࣝ࡟ാࡃຊᏛⓗ࠾ࡼࡧྜ⌮ⓗࢶ࣮ࣝᑍἲࡢほⅬࡼࡾ㸪ྍ⬟࡞㝈ࡾ༢⣧ᙧ≧ࡢࢶ࣮ࣝࡀ㐺ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡑࡢ㝿㸪༢⣧ᙧ≧ࡢࢶ࣮࡛ࣝ࠶ࡗ࡚ࡶࡑࡢ᭷ຠᛶࢆ㧗ࡵࡿࡓࡵ࡟ࡣ㸪ࢶ࣮ࣝྛ㒊ࡀ᭷ࡍࡿྛ✀ᶵ⬟ࢆ᫂ࡽ࠿࡟ࡋ࡚࠾ࡃࡇ࡜ࡀ㔜せ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ༢⣧࡞ᙧ≧ࡢࢶ࣮ࣝࢆ⏝࠸㸪ࢶ࣮ࣝࡢྛ㒊ᙧ≧ࡀ᭷ࡍࡿ≉ᚩࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜࡟ࡼࡗ࡚㸪㕲㗰ᮦᩱ⏝ᦶ᧿ᨩᢾ᥋ྜࢶ࣮ࣝࡢᙧ≧Ỵᐃᣦ㔪ࡢࡓࡵࡢᙧ≧≉ᛶホ౯ࢆ⾜ࡗࡓ㸬
2. ◊✲᪉ἲᐇ㦂ᮦᩱࡣ㸪ᯈཌ 5mm ࡢᶵᲔᵓ㐀⏝Ⅳ⣲㗰ᯈ S45C ࠾ࡼࡧ S55C ࢆ౑⏝ࡋࡓ㸬ࢶ࣮ࣝࡣࣉ࣮ࣟࣈඛ➃ᙧ≧࠾ࡼࡧࢩࣙࣝࢲゅࢆኚ໬ࡉࡏࡓᙧ≧ࡢࡶࡢࢆ౑⏝ࡋࡓ㸬ࡇࢀࡽࡣ෇ᰕᆺࣉ࣮ࣟࣈࢆ᭷ࡍࡿ㉸◳ྜ㔠〇࡛㸪ࢩࣙࣝࢲ㒊ࡢ┤ᚄࡣ࠸ࡎࢀࡶ 12mm ࡛࠶ࡾ㸪ᅗ 1 ࡟ᙧ≧࠾ࡼࡧᑍἲࢆ♧ࡍ㸬ᅗ 1 ࡟♧ࡍࡼ࠺࡟ࢶ࣮ࣝࡣࣉ࣮ࣟ
ࣈඛ➃᭤⋡࡞ࡋ㸪ࢩࣙࣝࢲゅ 10r㸦P0-S10 ࢶ࣮ࣝ㸧㸪ࣉ࣮ࣟࣈඛ➃᭤⋡ 5.4mm㸪ࢩࣙࣝࢲゅ 10r㸦P5.4-S10
ࢶ࣮ࣝ㸧㸪ࣉ࣮ࣟࣈඛ➃᭤⋡ 2mm㸪ࢩࣙࣝࢲゅ 10r㸦P2-S10 ࢶ࣮ࣝ㸧㸪ࣉ࣮ࣟࣈඛ➃᭤⋡ 5.4mm㸪ࢩࣙࣝࢲゅ 19r㸦P5.4-S19 ࢶ࣮ࣝ㸧࠾ࡼࡧࣉ࣮ࣟࣈඛ➃᭤⋡ 5.4mm㸪ࢩࣙࣝࢲゅ 0r㸦P5.4-S0 ࢶ࣮ࣝ㸧ࡢ 5 ✀㢮ࢆ⏝࠸ࡓ㸬࠸ࡎࢀࡢࢶ࣮ࣝࢆ⏝࠸ࡿሙྜࡶᦶ᧿ᨩᢾ᥋ྜࡣⲴ㔜ไᚚࡋࡓࢫࢸ࢔࢖ࣥࣉ࣮ࣞࢺ࡛⾜࠸㸪๓㐍ゅ 3r㸪
᥋ྜ㊥㞳 100mm ࠾ࡼࡧࢶ࣮ࣝᅇ㌿ᩘ 400rpm ࡣ୍ᐃ࡜ࡋ㸪᥋ྜ㏿ᗘࡢࡳ 100㹼500mm/min ࡜ኚ໬ࡉࡏࡓ㸬ᦶ᧿ᨩᢾ᥋ྜᚋࡢホ౯ࡣ㸪እほ࠾ࡼࡧ᩿㠃⤌⧊ほᐹࢆ⾜࠸㸪᩿㠃⤌⧊ほᐹ⤖ᯝ࠿ࡽ⏬ീฎ⌮࡟ࡼࡗ࡚ᦶ᧿ᨩᢾ
᥋ྜ㒊┦ᙜ㡿ᇦࡢᨩᢾ㡿ᇦࡢ኱ࡁࡉࢆᐃ㔞໬ࡋࡓ㸬ࡲࡓ㸪⥅ᡭ᩿㠃࡟࠾࠸࡚ࡣࣅࢵ࣮࢝ࢫ◳ࡉศᕸᐃࢆ⾜ࡗࡓ㸬 ᐃࡣⲴ㔜 0.98N ࡛㸪ᯈཌ୰ᚰ࡟ᑐࡋ࡚᥋ྜ㒊୰ᚰ࠿ࡽ 0.5mm 㛫㝸࡛๓㐍ഃ࠾ࡼࡧᚋ㐍ഃ࡟ࡑࢀࡒࢀ
10mm ࡲ࡛⾜ࡗࡓ㸬
3. ⤖ᯝ ྛࢶ࣮ࣝࢆ⏝࠸ࡓᦶ᧿ᨩᢾ᥋ྜࢆ⾜ࡗࡓ⤖ᯝ㸪P0-S10 ࠾ࡼࡧ P5.4-S19 ࢶ࣮ࣝ࡟ࡘ࠸࡚ࡣࢶ࣮ࣝࡀᢡᦆࡋ࡚
ᐇ᪋୙ྍ⬟࡛࠶ࡗࡓ㸬P0-S10 ࢶ࣮࡛ࣝࡣࣉ࣮ࣟࣈࡀᢡᦆࡋ㸪P5.4-S19 ࢶ࣮࡛ࣝࡣࣂࣜࡀከࡃⓎ⏕ࡋ࡚ࢩࣙࣝ
ࢲ࢚ࢵࢪ㒊࠾ࡼࡧࣉ࣮ࣟࣈࡀᢡᦆࡋࡓ㸬ࡇࡢࡇ࡜࠿ࡽ㸪ࣉ࣮ࣟࣈඛ➃࡟᭤⋡ࡀ࡞࠸ࡶࡋࡃࡣࢩࣙࣝࢲゅࡀ኱ࡁ࠸ࢶ࣮ࣝᙧ≧ࡣ㸪ࣉ࣮ࣟࣈඛ➃㠃ࡸࢩࣙࣝࢲ㠃࡟኱ࡁ࡞㈇Ⲵࡀస⏝ࡍࡿࡓࡵ㸪ࢶ࣮ࣝࡀᢡᦆࡍࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡼࡗ࡚㸪᳨ウࡣᦶ᧿ᨩᢾ᥋ྜࡀྍ⬟࡛࠶ࡗࡓ P5.4-S10㸪P2-S10 ࠾ࡼࡧ P5.4-S0 ࢶ࣮ࣝ࡟ࡘ࠸࡚⾜ࡗࡓ㸬ᅗ 2 ࡣ㸪እほ౛࡜ࡋ࡚ P5.4-S10 ࢶ࣮ࣝࢆ⏝࠸ࡓሙྜࢆ♧ࡋࡓࡶࡢ࡛࠶ࡿ㸬ࣂࣜࡢⓎ⏕≧ἣࡣ S45C ࡜ S55C
࡜ࡢእほୖࡢ㐪࠸ࡣ࡯࡜ࢇ࡝↓ࡃ㸪P5.4-S10 ࢶ࣮ࣝ௨እࢆ⏝࠸ࡓሙྜ࡛ࡶ࡯ࡰྠᵝ࡛࠶ࡗࡓ㸬୍᪉㸪ྠࡌᮦᩱ࡛ࡣࢶ࣮ࣝࡀ␗࡞ࡿ࡜㸪ࣅ࣮ࢻᖜ࡞࡝࡟ⱝᖸࡢ㐪࠸ࡀࡳࡽࢀࡓ㸬ᅗ 3 ࡣ㸪P5.4-S10 ࠾ࡼࡧ P2-S10 ࢶ࣮ࣝࢆ⏝࠸࡚ᦶ᧿ᨩᢾ᥋ྜࢆ⾜ࡗࡓሙྜ࡟࠾ࡅࡿ⥅ᡭ᩿㠃ࡢほᐹ⤖ᯝࡢ୍౛ࢆ♧ࡋࡓࡶࡢ࡛࠶ࡿ㸬ᨩᢾ㡿ᇦࡣ
P2-S10 ࢶ࣮ࣝࢆ⏝࠸ࡓሙྜࡼࡾ㸪P5.4-S10 ࢶ࣮ࣝࢆ⏝࠸ࡓሙྜ࡟኱ࡁࡃ࡞ࡗ࡚࠸ࡓ㸬ࡲࡓ㸪ᨩᢾ㡿ᇦࡢᙧ≧ࡣ࠸ࡎࢀࡢࢶ࣮ࣝࡶ࡯ࡰࢶ࣮ࣝࡢඛ➃ᙧ≧࡟༶ࡋࡓࡼ࠺࡟࡞ࡗ࡚࠸ࡓ㸬ࡇࡢࡼ࠺࡟㸪ࢶ࣮ࣝࡢྛ㒊ᙧ≧ࡀࢃࡎ࠿࡟ኚ໬ࡋࡓࡔࡅ࡛ࡶᨩᢾ㡿ᇦࡢᙧ≧ࡀẚ㍑ⓗ᫂☜࡟ኚ໬ࡍࡿࡇ࡜ࡀุࡗࡓࡓࡵ㸪ᨩᢾ㡿ᇦ㠃✚ࢆᐃ㔞໬ࡋࡓ㸬ࡑࡢ⤖ᯝࡢ౛࡜ࡋ࡚ S45C ࡢሙྜࢆᅗ 4 ࡟♧ࡍ㸬P5.4-S10㸪
P2-S10 ࠾ࡼࡧ P5.4-S0 ࢶ࣮ࣝ࡟࠾࠸࡚㸪P2-S10
ࢶ࣮ࣝࢆ⏝࠸ࡓሙྜ࡟᭱ࡶᨩᢾ㡿ᇦ㠃✚ࡀᑠࡉࡃ࡞ࡗࡓ㸬P5.4-S0 ࢶ࣮ࣝࢆ⏝࠸ࡓሙྜ࠾ࡼࡧ P5.4-S10 ࢶ࣮ࣝࢆ⏝࠸ࡓሙྜࡣ P2-S10 ࢶ࣮ࣝࢆ⏝࠸ࡓሙྜࡼࡾ㸪ࡑࢀࡒࢀᨩᢾ㡿ᇦ㠃✚ࡣ᭱኱࡛ 4 ࠾ࡼࡧ 2mm2 ⛬ᗘ኱ࡁࡃ࡞ࡗࡓ㸬ࡲࡓ㸪ᅗ 5 ࡣ᭱ࡶᨩᢾ㡿ᇦ㠃✚ࡀᑠࡉࡃ࡞ࡿഴྥࢆ♧ࡋࡓ P2-S10 ࢶ࣮ࣝࢆ⏝࠸ࡓሙྜࡢ⥅ᡭ᩿㠃

− 91 −

࡟࠾ࡅࡿࣅࢵ࣮࢝ࢫ◳ࡉศᕸࢆ♧ࡋࡓࡶࡢ࡛࠶ࡿ㸬࠸ࡎࢀࡢ᥋ྜ㏿ᗘ࡛ࡶᨩᢾ㡿ᇦ࡛◳໬ࡋ࡚࠾ࡾ㸪AS ࡛ࡸࡸ㢧ⴭ࡟◳໬ࡋ࡚࠸ࡓ㸬ࣉ࣮ࣟࣈඛ➃࡟࢚ࢵࢪࡀ࠶ࡿࢶ࣮ࣝ࡟࠾࠸࡚ᨩᢾ㡿ᇦ㠃✚࠾ࡼࡧ◳ࡉࡀቑຍࡍࡿ
ഴྥࢆ♧ࡋࡓࡇ࡜࠿ࡽ㸪ࡇࡢ࢚ࢵࢪࡀᨩᢾ⬟ຊ࡟ᙳ㡪ࢆ୚࠼࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࡶࡢࡢ㸪ࡇࡇ࡛ࡣࣉ࣮ࣟࣈ
ඛ➃ࡢ࢚ࢵࢪࡀ࡞࠸≧ែ࡛࠶ࡗ࡚ࡶᚲせ࡞ᨩᢾ㡿ᇦ㠃✚ࡀᚓࡽࢀ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ࢩࣙࣝࢲゅᗘࡀᑠࡉ࠸ࢶ࣮ࣝ࡟࠾࠸࡚㸪᥋ྜ㏿ᗘࡀ኱ࡁࡃ࡞ࡿ࡜ᨩᢾ㡿ᇦ㠃✚ࡀᑠࡉࡃ࡞ࡾ㸪ᨩᢾ㒊ࡀ◳໬ࡍࡿ㕲㗰ᮦᩱ࡟࠾ࡅࡿ୍⯡ⓗ࡞ᣲືࢆ♧ࡍࡇ࡜࠿ࡽ 1)㸪ᑠࡉ࠸ࢩࣙࣝࢲゅᗘࡀⰋዲ࡞⤖ᯝࢆ♧ࡍ࡜⪃࠼ࡽࢀࡿ㸬4. ⤖ㄽ 㕲㗰ᮦᩱ⏝ᦶ᧿ᨩᢾ᥋ྜࢶ࣮ࣝࡢᙧ≧Ỵᐃᣦ㔪ࡢࡓࡵࡢᙧ≧≉ᛶホ౯ࢆ⾜ࡗࡓ⤖ᯝ㸪ࣉ࣮ࣟࣈඛ➃ࡢ࢚ࢵࢪ㒊ࡢᙳ㡪ࡣ኱ࡁ࠸ࡀ㸪ྍ⬟࡞㝈ࡾ༢⣧࡞ࢶ࣮ࣝᙧ≧ࢆ⪃៖ࡍࡿ࡜ࣉ࣮ࣟࣈඛ➃ࡢ࢚ࢵࢪ㒊ࡣ᭤⋡ࡢᑠࡉ࠸ࡶࡢࡀ㐺ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪๓㐍ゅ࡟ࡶ㛵㐃ࡍࡿࡼ࠺࡟ 2)㸪ࢩࣙࣝࢲゅࢆ኱ࡁࡃࡍࡿ࡜ᮦᩱࡢ⁫␃㸪ᅽ⦰ຠᯝࡀ኱ࡁࡃ࡞ࡾࡍࡂ㸪ᨩᢾ⬟ຊࢆపୗࡉࡏࡿྍ⬟ᛶࡀ࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬5. ཧ⪃ᩥ⊩1) ⏕⏣᫂ᙪ㸸኱㜰኱Ꮫ᥋ྜ⛉Ꮫඹྠ฼⏝࣭ඹྠ◊✲ᣐⅬඹྠ◊✲ሗ࿌᭩㸪(2016), 160-161
2) ⏕⏣᫂ᙪ㸪⸨஭ ⱥಇ㸪ᮧୖ ಇኵ㸪ᑠᶫ Ὀ୕㸸⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫせ㸪99(2016), 174-175(a) P0-S10 ࢶ࣮ࣝ(b) P5.4-S10 ࢶ࣮ࣝ(c) P2-S10 ࢶ࣮ࣝ(d) P5.4-S19 ࢶ࣮ࣝ(e) P5.4-S0 ࢶ࣮ࣝ ᅗ 1 ᥋ྜࢶ࣮ࣝࡢᙧ≧࠾ࡼࡧᑍἲ

ᅗ 2 S45C ࠾ࡼࡧ S55C ࡢᦶ᧿ᨩᢾ᥋ྜ㒊ࡢእほほᐹ⤖ᯝ౛㸦᥋ྜ㏿ᗘ 100mm/min㸧

ᅗ 3 ࢶ࣮ࣝࡢ㐪࠸࡟ࡼࡿᦶ᧿ゅ᥋ྜ㒊ࡢ⤌⧊ほᐹ⤖ᯝ౛㸦᥋ྜ㏿ᗘ 100mm/min㸧

Vickers hardness, Hv

1000
800
600
400

FSW conditions
Tool: P2-S10
Welding material: S45C
Tool rotational speed: 400rpm
Tool angle: 3r
Travel speed
100mm/min(900kgf)
200mm/min(1200kgf)
300mm/min(1500kgf)
400mm/min(1800kgf)
500mm/min(2500kgf)

200
RS
0



-10

AS
-5

0

5

10

Distance from welding center, mmᅗ 4 ࢶ࣮ࣝࡢ㐪࠸࡟ࡼࡿᨩᢾ㡿ᇦ㠃✚࡜᥋ྜ㏿ᗘ࡜ࡢ㛵ಀᅗ 5 P2-S10 ࢶ࣮ࣝࢆ⏝࠸ࡓሙྜࡢ⥅ᡭ᩿㠃࡟࠾ࡅࡿࣅࢵ࣮࢝ࢫ◳ࡉศᕸ㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 92 −

㧗⬟⋡䞉㧗ຠ⋡䞉ప⎔ቃ㈇Ⲵ⁐᥋䞉᥋ྜ䝥䝻䝉䝇䛾㛤Ⓨ䛸ホ౯㻌 AE ἲ䛾↓⥺໬䛻䜘䜛㗰ᮦ FSW 䛾䜲䞁䝥䝻䝉䝇䝰䝙䝍䝸䞁䜾ᅜ❧኱Ꮫἲே ᮾி኱Ꮫ ኱Ꮫ㝔ᕤᏛ⣔◊✲⛉ఀ⸨ ᾏኴ
1. ┠ⓗᦶ᧿ᨩᢾ᥋ྜ(FSW)ࡣᅛ┦᥋ྜἲࡢ୍✀࡛࠶ࡾࠊᙉᗘపୗࡢᑡ࡞࠸᥋ྜ⥅ᡭࢆᚓࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࠋࡋ࠿ࡋࠊ
㗰ᮦ FSW ࡛ࡣࠊ᥋ྜ᮲௳ḟ➨࡛ධ⇕ᚋࡢ෭༷࡟ࡼࡗ࡚⥅ᡭ≉ᛶ࡟ᙳ㡪ࢆཬࡰࡍ࣐ࣝࢸࣥࢧ࢖ࢺኚែࡀᒁᡤⓗ࡟⏕ࡌࡿࡓࡵࠊࡑࡢᣲືࢆࣜ࢔ࣝࢱ࢖࣒࡟᳨ฟࡍࡿࡇ࡜ࡀᮃࡲࢀ࡚࠸ࡿࠋ࢔ࢥ࣮ࢫࢸ࢕ࢵࢡ࣭࢚࣑ࢵࢩࣙࣥ(AE)ἲࡣᮦ
ᩱ୰ࡢᚤᑠ࡞◚ቯࡸኚᙧ࡟ࡼࡾ⏕ࡌࡿ㉸㡢Ἴࢆ in-situ ᳨࡛ฟࡋࠊ
ࡑࡢⓎ⏕᫬้࡜఩⨨ࡢ୧᪉ࢆᚓࡽࢀࡿ㠀◚ቯホ౯ᡭἲ࡛࠶ࡿࠋᦶ᧿࡟ࡼࡿ㡢㡪ࣀ࢖ࢬࡀ኱ࡁ࡞ FSW ୰࡟ࡇࢀࢆ⾜࠺ࡇ࡜ࡣᅔ㞴࡛࠶ࡗࡓࡀࠊᡃࠎࡢ◊✲࡟ࡼࡗ࡚᥋
ྜ୰ࡢ AE ィ ࡀྍ⬟࡜࡞ࡾࠊ᥋ྜḞ㝗ࡸ࣐ࣝࢸࣥࢧ࢖ࢺኚែࢆ᳨ฟ࡛ࡁࡿࡇ࡜ࡀ♧ࡉࢀࡓ[1]ࠋࡋ࠿ࡋࠊFSW ࡢᕤᴗ฼⏝࡛ࡣᩘ㹼ᩘ༑ m ࡢ㛗ᑻᮦ࡬ࡢ㐺⏝ࡶከ࠸ࡓࡵࠊᅛᐃࢭࣥࢧ࡛ࡢィ ࡣࢭࣥࢧࡀከᩘᚲせ࡛࠶ࡿ࡜࠸ࡗࡓၥ
㢟ࡀ⏕ࡌࡿࠋࡲࡓࠊ᭷⥺࡛ࡢィ ࡣ FSW ࣉࣟࢭࢫࡀ㟁※࠾ࡼࡧ㏻ಙࢣ࣮ࣈࣝ࡟ࡼࡿไ㝈ࢆཷࡅࡿሙྜࡀ⏕ࡌࡿࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣ FSW ࢶ࣮ࣝ࡜㐃ືࡋ࡚ヨᩱୖࢆ⛣ືࡍࡿྍືᆺࢭࣥࢧ࡜ࠊIoT㸦Internet of Things㸧ࡢᛴ㏿࡞Ⓨᒎ࡟క࠸㛤Ⓨࡉࢀࡓ┬㟁ຊ SoC㸦System on Chip㸧ࢆ⏝࠸ࡓ↓⥺㐃⥆Ἴᙧィ ࡟ࡘ࠸᳨࡚ウࡋࡓࠋ
2. ᐇ㦂ཬࡧゎᯒ᪉ἲヨᩱࡣ S45C 〇ࡢཌࡉ 2.0 mm ࡢᖹᯈࠊࢶ࣮ࣝࡣ㉸◳ྜ㔠〇࡛ࢩࣙࣝࢲᚄ
12 mm ࣉ࣮ࣟࣈᚄ 4 mm ࡢࡶࡢࢆ⏝࠸ࡓࠋFig. 1 ࡟ィ ⣔ࡢᴫ␎ࢆ♧ࡍࠋa. ྍືᆺࢭࣥࢧࢆ⏝࠸ࡓ㐃⥆Ἴᙧィ :࣐ࣝࢸࣥࢧ࢖ࢺࡢ⏕ᡂᣲືࢆኚ໬ࡉࡏࡿࡓࡵࠊࢶ࣮ࣝࡢᅇ㌿ᩘ࡜⛣ື㏿ᗘࡢ␗࡞ࡿ᮲௳࡛ヨ㦂ࢆ⾜ࡗࡓࠋࢶ࣮ࣝࢆᅖࡴࡼ࠺࡟ AE ࢭࣥࢧ 4 ಶࢆ㓄⨨ࡋࠊᙜ◊✲ᐊ࡛㛤Ⓨࡋࡓ㐃⥆Ἴᙧグ㘓⿦⨨ CWM[2]ࢆ⏝࠸࡚ᨩᢾ㛤ጞ࠿ࡽࡢἼᙧࢹ࣮ࢱࢆ㐃⥆ⓗ࡟཰㞟ࡋࠊἼᙧゎᯒ࡟ࡼࡾ AE ஦㇟ࡢ఩⨨ᶆᐃࢆ⾜ࡗࡓࠋࡑࡢ㝿ࠊ᫖ᖺᗘ࡟㡢㏿ࡢ␗࡞ࡿ࣒ࣛἼ S0 ࣮ࣔࢻ㸦5.2 km/s㸧࡜
A0 ࣮ࣔࢻ㸦3.1 km/s㸧ࡢ฿㐩ࢆ㆑ูࡍࡿ࢔ࣝࢦࣜࢬ࣒ࢆᑟධࡋ࡚⢭ᗘࢆ㧗

Fig. 1 FSW ཬࡧ AE ィ ⣔ࡢᴫ␎ࡵࡓࡀࠊᮏᖺᗘࡣ㆑ูࡢㄗࡾࢆ⮬ືⓗ࡟᳨ฟ࡞࠸ࡋゞṇࡍࡿ࢔ࣝࢦࣜࢬ࣒
ࢆᑟධࡋ࡚ࠊ఩⨨ᶆᐃࡢᡂຌ⋡࡜⢭ᗘࢆ㧗ࡵࡿࡇ࡜ࢆ┠ᣦࡋࡓࠋࡲࡓࠊᨩ
ᢾ㒊࡟࠾ࡅࡿ࣐ࣝࢸࣥࢧ࢖ࢺࡢ⏕ᡂ㔞ࢆㄪ࡭ࡿࡓࡵヨ㦂ᚋࡢヨᩱ᩿㠃ࢆ
EBSD ほᐹࡋࡓࠋb. ┬㟁ຊ SoC ࢆ⏝࠸ࡓ↓⥺㐃⥆Ἴᙧィ
AE Ἴᙧࡢ㐃⥆ィ ࡜඲Ἴᙧࡢ↓⥺㌿㏦ࡀ࡛ࡁࠊ࠿ࡘ Linux ⣔ OS ࡀᦚ㍕ࡉࢀ࡚࠸࡚㛤Ⓨࡀࡋࡸࡍ࠸ࡇ࡜࠿ࡽࠊRedPitaya ♫〇 STEM125-14 ࢆᏊ

Fig. 2 AE ↓⥺ィ ࡢᴫ␎㻌ᶵ࡜ࡋ࡚౑⏝ࡍࡿࡇ࡜࡜ࡋࠊᚲせ࡞ࢯࣇࢺ࢙࢘࢔ࡢ㛤Ⓨࢆ⾜ࡗࡓࠋࡇࢀࢆ
฼⏝ࡋ࡚ AE Ἴᙧࢆ㐃⥆ⓗ࡟ィ ࡋࠊぶᶵ࡛࠶ࡿ CWM ࡬ࡢ↓⥺࡛ࡢ㌿㏦㏿ᗘࢆ☜࠿ࡵࡓࠋḟ࡟ FSW ⿦⨨࡟ᑠᆺ࣮࣎ࢻࢆྲྀࡾ௜ࡅࠊࡑࡇ࡟ྍືᆺ
ࢭࣥࢧࢆ᥋⥆ࡋࠊFSW ୰ࡢἼᙧࢹ࣮ࢱࢆ㐃⥆ⓗ࡟཰㞟ࡋࡓࠋFig. 2 ࡟ᑠᆺ࣮࣎ࢻࢆ⏝࠸ࡓィ ࡢᴫ␎ࢆ♧ࡍࠋࡲࡓࠊྠ᫬࡟᭷⥺࡛ࡢ AE ィ ࡶ⾜࠸ࠊᚓࡽࢀࡓἼᙧࢹ࣮ࢱࢆẚ㍑ࡋࡓࠋ
3. ⤖ᯝ࡜⪃ᐹa. ྍືᆺࢭࣥࢧࢆ⏝࠸ࡓ㐃⥆Ἴᙧィ
Fig. 3 ࡟ࠊࢶ࣮ࣝᅇ㌿ᩘ 300 rpmࠊࢶ࣮ࣝ⛣ື㏿ᗘ 100 mm/min ࡢሙྜࡢࠊAE ィ ࡢ⤖ᯝࢆ♧ࡍࠋᅗ୰ᩳࡵࡢ

− 93 −

㯮⥺ࡣ᥋ྜ఩⨨ࢆ♧ࡋࠊࡲࡓࡦ࡜ࡘࡢࣉࣟࢵࢺࡀࡦ࡜ࡘࡢ AE ஦㇟࡟┦ᙜࡋࠊⓎ⏕᫬้࡜ᶆᐃ఩⨨࠾ࡼࡧ᭱኱᣺
ᖜࢆ♧ࡋ࡚࠸ࡿࠋ᳨ฟࡉࢀࡓ AE ࡣṤ࡝ࡀࢶ࣮ࣝ㏻㐣࠿ࡽᩘ⛊㐜ᘏࡋ࡚Ⓨ⏕ࡋ࡚࠾ࡾࠊࢶ࣮ࣝ㏻㐣ᚋ࡟ヨᩱࡀᛴ෭ࡉࢀ⏕ࡌࡓ࣐ࣝࢸࣥࢧ࢖ࢺኚែ࡟ࡼࡿࡶࡢ[3]࡛࠶ࡿ࡜᥎ᐃࡉࢀࡓࠋࡑࡇ࡛ࠊ᫖ᖺᗘ࡜௒ᖺᗘ㛤Ⓨࡋࡓ఩⨨ᶆᐃ࢔ࣝࢦࣜࢬ࣒ࢆẚ㍑ࡋ࡚ࡳࡿ࡜ࠊ௒ᖺᗘࡢ᪉ࡀከᩘࡢ AE ஦㇟ࡀ఩⨨ᶆᐃ࡟ᡂຌࡋ࡚࠾ࡾࠊࡲࡓ AE ஦㇟ࡢⓎ⏕᫬้࡜ᶆᐃ఩⨨ࡢ㛵ಀࢆㄪ࡭ࡿ࡜ࠊAE ஦㇟ࡀ᥋ྜ┤ᚋ࠿ࡽ⣙ 10 ⛊㛫࡟Ⓨ⏕ࡋ࡚࠾ࡾࠊࡇࢀࡣ᥋ྜ㒊࿘㎶ࡀ Ms
Ⅼ࠿ࡽ Mf Ⅼࡲ࡛෭༷ࡉࢀࡿࡢ࡟せࡍࡿ᫬㛫࡟ᑐᛂࡍࡿࡶࡢ࡜᥎ᐃࡉࢀࡓࠋࡲࡓࠊࡇࢀࡽࡢ AE ஦㇟ࡢ࢚ࢿࣝࢠ
࣮ࡢ⥲࿴࡜ࠊEBSD ほᐹ࡟ࡼࡿᨩᢾ㒊ࡢ࣐ࣝࢸࣥࢧ࢖ࢺయ✚ศ⋡࡟ࡣṇࡢ┦㛵ࡀࡳࡽࢀࡓࠋ

Fig. 3 AE ఩⨨ᶆᐃ⤖ᯝ㸦ᕥ: 2015 ᖺᗘ㛤Ⓨࡢゎᯒᡭἲ౑⏝, ྑ: 2016 ᖺᗘ㛤Ⓨࡢゎᯒᡭἲ౑⏝㸧b . ┬㟁ຊ SoC ࢆ⏝࠸ࡓ↓⥺㐃⥆Ἴᙧィ↓⥺࡛ࡢ㌿㏦㏿ᗘࡣୖࡾ⣙ 30 MB/sec ࡛࠶ࡗࡓࠋFig. 4 ࡟᭷⥺ィ ࡜↓⥺ィ ࡛ྠ୍஦㇟ࢆィ ࡋࡓ㝿ࡢἼᙧࢆ♧ࡍࠋ㸦ࡓࡔࡋࠊ᭷⥺ィ ࡜↓⥺ィ ࡛ࡣ౑⏝࡛ࡁࡿࢭࣥࢧࡀ␗࡞ࡿࡓࡵࠊ
୧⪅ࡢ㟁ᅽࡢ⤯ᑐ್ࡸឤᗘ࡟ⱝᖸࡢㄗᕪࡣ⏕ࡌࡿ㸧᭷⥺࡜↓⥺࡛ィ ࡋࡓἼᙧࡣྠᵝ࡛࠶ࡗࡓࠋ
Fig. 4 AE Ἴᙧ౛㸦ᕥ: ᭷⥺ィ , ྑ: ྠ஦㇟ࢆ↓⥺ィ 㸧

4. ⤖ㄽ
z

FSW ࢶ࣮ࣝ࡜㐃ືࡋ࡚⛣ືࡍࡿྍືᘧࢭࣥࢧ࡜㐃⥆ AE Ἴᙧࢆグ㘓ࡍࡿࡇ࡜ࡀ࡛ࡁࡿ↓⥺ィ ⿦⨨ (↓⥺CWM)ࢆస〇ࡋࠊࡑࢀࡽࢆ⏝࠸࡚ FSW ୰ࡢࣉࣟࢭࢫࣔࢽࢱࣜࣥࢢࢆ⾜ࡗࡓࠋz

AE ※ࡢ఩⨨ᶆᐃ࢔ࣝࢦࣜࢬ࣒ࢆぢ┤ࡋࠊ㡢㏿ࡢ␗࡞ࡿఏ᧛࣮ࣔࢻࢆ㆑ูࡋࡓ㝿ࡢㄗࡾࡢ⮬ື᳨ฟ࣭ゞṇࢆ⾜ࡗࡓࡇ࡜࡟ࡼࡾࠊᚑ᮶ࡼࡾከࡃࡢ AE ஦㇟ࡢ఩⨨ᶆᐃࡀ࡛ࡁࠊࡑࡢ⢭ᗘࡶᨵၿࡉࢀࡓࠋ

z↓⥺ CWM ࡟ࡼࡗ࡚グ㘓ࡉࢀࡓ AE ࡜᭷⥺ CWM ࡟ࡼࡗ࡚グ㘓ࡉࢀࡓ AE ࢆẚ㍑ࡋࡓ࡜ࡇࢁࠊRMS 㟁ᅽࡸ
AE Ἴᙧࡀࡼࡃᑐᛂࡋ࡚࠸ࡓࠋ

ㅰ㎡
 ᮏ◊✲ࡢ୍㒊ࡣᏲ㇂⫱ⱥ఍ࡢ◊✲ຓᡂࢆཷࡅࡓࡶࡢ࡛ࡍࠋࡲࡓࠊᮏ◊✲ࡣᮾி኱Ꮫ ᴮ◊✲ᐊࡢ ᴮ Ꮫ ᩍᤵࠊ∦ᒣ ඔẶࡢ༠ຊࢆᚓ࡚⾜ࢃࢀࡲࡋࡓࠋ῝ࡃឤㅰ⏦ࡋୖࡆࡲࡍࠋ
ཧ⪃ᩥ⊩[1] T. Kawaguchi, K. Ito, R. Ueji, H. Fujii and M. Enoki, CAMP-ISIJ, 29 (2016) 250. [2] K. Ito and M. Enoki, Mater. Trans., 48 (2007) 1221.
[3] T. Kasuya et al., Welding in the World, 56 (2012) 76-84.

㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 94 −

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Ti-6Al-4V ྜ㔠ᦶ᧿ᨩᢾ᥋ྜ⥅ᡭࡢ᥋ྜ㒊࠾ࡼࡧࡑࡢ㏆ഐࡢ࣑ࢡࣟ⤌⧊࡜◳ࡉศᕸ࡟ཬࡰࡍ⇕ฎ⌮ࡢᙳ㡪㏆␥኱Ꮫ⌮ᕤᏛ㒊 1ࠊᮾ໭኱Ꮫ㔠ᒓᮦᩱ◊✲ᡤ 2ࠊྡᇛ኱Ꮫ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉ 3ࠊ኱㜰኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ 4ࠊྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ 5ࠊ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ 6௰஭ṇ᫛ 1ࠊᮌཱྀ᫛஧ 1ࠊ᪂ᐙග㞝 2-5ࠊ⸨஭ⱥಇ 6ࠊ๽᜚ᘯ 61.

┠ⓗࢳࢱࣥྜ㔠ࡣࠊ㧗ẚᙉᗘࠊ㧗⪏㣗ᛶ࠾ࡼࡧ㧗⪏⇕ᛶࢆ᭷ࡋࠊⅣ⣲⧄⥔ᙉ໬ࣉࣛࢫࢳࢵࢡ㸦CFRP㸧࡟ᑐࡍࡿ㐺ྜᛶ࡟ඃࢀࡿࡇ࡜࠿ࡽࠊ⯟✵ᶵ⏝㒊ᮦ࡜ࡋ࡚ࡢ౑⏝㔞ࡀ CFRP ࡢ౑⏝㔞ࡢቑຍ࡜࡜ࡶ࡟ቑຍࡋ࡚࠾ࡾࠊ௒ᚋࡢ౑⏝㔞ࡶࡉࡽ࡟ቑ኱ࡍࡿࡶࡢ࡜⪃࠼ࡽࢀࡿࠋ⯟✵ᶵ㒊ᮦ࡛ࡣࠊ⣲ᮦ๐ῶࡢࡓࡵࡢ኱ᆺ࠿ࡘ」㞧ᙧ≧ࡢࢽ࢔ࢿࢵࢺࢩ࢙
࢖ࣉᡂᙧࡀᮃࡲࢀࡿࠋࡇࡢሙྜࠊ᥋ྜࡣᴟࡵ࡚㔜せ࡞ᢏ⾡࡜࡞ࡿࡀࠊᚑ᮶ࡢ⁐᥋ἲࡣࠊ⁐⼥ࣉࣟࢭࢫ࡛࠶ࡿࡓࡵࠊ
จᅛ᫬ࡢ᥋ྜḞ㝗ࡢᙧᡂࡀ㑊ࡅࡽࢀࡎࠊࡑࡢࡓࡵࠊ⑂ປᙉᗘࡀపୗࡍࡿ➼ࡢၥ㢟ࡀ࠶ࡿࠋࡇࢀ࡟ᑐࡋࠊᮏ◊✲࡛⏝࠸ࡿᦶ᧿᧠ᢾ᥋ྜ㸦FSW㸧ࡣᦶ᧿⇕ࡸຍᕤⓎ⇕ࢆ฼⏝ࡍࡿ᥋ྜἲ࡛࠶ࡾࠊᮦᩱࡣ⼥Ⅼ௨ୗ࡛ረᛶὶືࡋࠊᅛ┦≧ែࡢࡲࡲ᥋ྜࡀ⾜ࢃࢀࡿࡓࡵࠊ᥋ྜḞ㝗ࢆᙧᡂࡋ࡟ࡃࡃࠊⰋዲ࡞⑂ປ≉ᛶࡀᮇᚅࡉࢀࡿࠋ
Ti-6Al-4V ྜ㔠ࡣ᭱ࡶỗ⏝ࡉࢀ࡚࠸ࡿࢳࢱࣥྜ㔠࡛࠶ࡾࠊྠྜ㔠࡟ FSW ࢆ᪋ࡋࡓ㝿ࡢ࣑ࢡࣟ⤌⧊ࡸᘬᙇᙉᗘࡀ
ሗ࿌ࡉࢀ࡚࠸ࡿ[1]ࠋᮏ◊✲࡛ࡣࠊFSW ࡟ࡼࡾ᥋ྜࡋࡓ Ti-6Al-4V ྜ㔠⥅ᡭࡢ⑂ປ≉ᛶࡢホ౯࠾ࡼࡧࡑࡢ⇕ฎ⌮࡟ࡼࡿᨵၿࢆ┠ᣦࡍࡓࡵࠊ௒ᖺᗘࡣྠ⥅ᡭࡢ᥋ྜ㒊࠾ࡼࡧࡑࡢ㏆ഐࡢ࣑ࢡࣟ⤌⧊࠾ࡼࡧ◳ࡉศᕸ࡟ཬࡰࡍ⇕ฎ⌮ࡢᙳ㡪࡟ࡘ࠸᳨࡚ウࡋࡓࠋ2.

◊✲᪉ἲ
➼㍈ Į ⤌⧊࠿ࡽ࡞ࡿ Ti-6Al-4V ྜ㔠ᯈ㸦㛗ࡉ 300mm×ᖜ 50mm×ཌࡉ 5mm㸧ࢆ౪ヨᮦ࡜ࡋ࡚⏝࠸ࡓࠋヨᩱࡢᅽᘏ᪉ྥࠊᯈᖜ᪉ྥ࠾ࡼࡧᯈཌ᪉ྥࢆࡑࢀࡒࢀ L ᪉ྥࠊT ᪉ྥ࠾ࡼࡧ S ᪉ྥ࡜ࡍࡿࠋ౪ヨᮦࡢ T ᪉ྥ࡜᥋ྜ᪉ྥ࡜ࡀ
୍⮴ࡍࡿࡼ࠺࡟ࠊ஧ᯛࡢ S-T 㠃ࢆ✺ࡁྜࢃࡏࠊ✺ࡁྜࢃࡏ㒊ศ࡟ᑐࡋ࡚ኚ఩ไᚚ࡟ࡼࡾᦶ᧿ᨩᢾ᥋ྜ㸦FSW㸧ࢆ᪋ࡋࡓࠋW-La ྜ㔠〇ࢶ࣮ࣝࢆ౑⏝ࡋࠊࢶ࣮ࣝᅇ㌿㏿ᗘ࠾ࡼࡧࢶ࣮ࣝ⛣ື㏿ᗘࢆࡑࢀࡒࢀ 150rpm ࠾ࡼࡧ 140mm/min
㸦150-140-asweld㸧࡜ࡋࡓࠋ150-140-asweld ࡟ᑐࡋ࡚ࠊᛂຊ㝖ཤฎ⌮࠾ࡼࡧ⁐య໬᫬ຠฎ⌮ࢆ᪋ࡋࡓࠋᛂຊ㝖ཤฎ⌮᮲௳ࡣ 753K ࡢ኱Ẽ୰࡛ 14.4ks ಖᣢᚋ✵෭࡜ࡋࡓ㸦150-140-SR㸧ࠋ⁐య໬᫬ຠฎ⌮᮲௳ࡣ 1243K ࡢ኱Ẽ୰࡛ 5.4ksಖᣢᚋỈ෭ᚋࠊ753K ࡢ኱Ẽ୰࡛ 28.8ks ಖᣢᚋ✵෭࡜ࡋࡓ㸦150-140-STA㸧ࠋ࣑ࢡࣟ⤌⧊ほᐹࡣࠊ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾ࢆ⏝࠸࡚ࠊ᥋ྜ᪉ྥ࡟ᑐࡋ࡚ᆶ┤࡞ L-S 㠃࡟ࡘ࠸࡚⾜ࡗࡓࠋ◳ࡉヨ㦂ࡣࠊࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂ᶵࢆ⏝࠸࡚ࠊ᥋ྜ
᪉ྥ࡟ᑐࡋ࡚ᆶ┤࡞ L-S 㠃࡟ࡘ࠸࡚⾜ࡗࡓࠋヨ㦂᮲௳ࢆᢲࡋ㎸ࡳⲴ㔜 9.8N ࠾ࡼࡧಖᣢ᫬㛫 15s ࡜ࡋࡓࠋ3.

◊✲⤖ᯝ
ᅗ 1 ࡟ 150-140-asweldࠊ150-140-SR ࠾ࡼࡧ 150-140-STA ࡢᨩᢾ㒊ࠊ㑄⛣㒊࠾ࡼࡧẕᮦ㒊࡟࠾ࡅࡿ࣑ࢡࣟ⤌⧊ほᐹ⤖ᯝࢆ♧ࡍࠋ150-140-asweld ࡣࠊẕᮦ㒊ࡢ࣑ࢡࣟ⤌⧊࠿ࡽࢃ࠿ࡿ࡜࠾ࡾࠊ᥋ྜ๓ࡣ➼㍈ Į ⤌⧊࡛࠶ࡿࡀࠊ᥋ྜᚋࡢ
ᨩᢾ㒊ࡣ࣓ࣛࣛ⤌⧊ࢆ࿊ࡍࡿࠋࡇࡢ⤖ᯝࡣࠊ᥋ྜ୰࡟ᨩᢾ㒊ࡢ ᗘࡀ ȕ ࢺࣛࣥࢨࢫࡼࡾࡶ㧗ࡃ࡞ࡗࡓࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋྠヨᩱࡢ㑄⛣㒊ࡣࠊ᥋ྜ୰ࠊȕ ࢺࣛࣥࢨࢫࡼࡾࡣప࠸ࡀࠊࡶ࡜ࡢẕᮦ࡟᪋ࡉࢀࡓ↝㕌ᗘࡼࡾࡶ㧗࠸

ᗘ࡟ࡲ࡛ୖ᪼ࡋࡓࡓࡵࠊ➼㍈ Į ⢏ࡢᩘࡀῶᑡࡋࠊ⣽࠿࡞㔪≧ Į ┦ࡀᯒฟࡋࡓ ȕ ⢏ࡢ๭ྜࡀቑຍࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ
150-140-SR ࡶࠊ150-140-asweld ࡜ྠᵝ࡟ࠊᨩᢾ㒊ࡣ࣓ࣛࣛ⤌⧊ࠊẕᮦ㒊ࡣ➼㍈ Į ⤌⧊ࠊ㑄⛣㒊ࡣ➼㍈ Į ⢏࡜⣽࠿࡞㔪≧ Į ┦ࡀᯒฟࡋࡓ ȕ ⢏࡜࠿ࡽ࡞ࡿ⤌⧊ࢆ࿊ࡋ࡚࠸ࡿࠋ150-140-STA ࡢ࣑ࢡࣟ⤌⧊ࡣࠊ150-140-asweld ࠾ࡼࡧ
150-140-SR ࡢ࣑ࢡࣟ⤌⧊࡜ࡣ኱ࡁࡃ␗࡞ࡿࠋ150-140-STA ࡢᨩᢾ㒊ࡣࠊฟⓎ⤌⧊ࡀ࣓ࣛࣛ⤌⧊࡛࠶ࡿࡓࡵࠊ⁐య໬᫬࡟୍㒊ࡢ Į ┦ࡢ⢒኱໬࡜ࡑࡢ௚ࡢ㒊ศࡢ ȕ ⢏໬ࡀ⏕ࡌࠊࡑࡢᚋࡢ᫬ຠ᫬࡟ࠊ⢒኱໬ Į ┦ࡀṧࡿ࡜࡜ࡶ࡟ ȕ ⢏୰࡟ Į ┦ࡀᯒฟ࣭ᡂ㛗ࡍࡿࡓࡵࠊ⢒኱໬ Į ┦㒊࡜࣓ࣛࣛ⤌⧊㒊࡜࠿ࡽ࡞ࡿ஧┦⤌⧊ࡀᙧᡂࡉࢀࡓ࡜⪃࠼ࡽࢀࡿࠋ
150-140-STA ࡢẕᮦ㒊࡛ࡣࠊฟⓎ⤌⧊ࡀ➼㍈ Į ⤌⧊࡛࠶ࡿࡓࡵࠊ୍㒊ࡢ➼㍈ Į ⢏ࡀṧࡿ࡜࡜ࡶ࡟ࠊࡑࡢ௚ࡢ㒊ศ࡛− 97 −

ࡣ࣓ࣛࣛ⤌⧊ࡀᙧᡂࡉࢀࠊ➼㍈ Į ⢏㒊࡜࣓ࣛࣛ⤌⧊㒊࡜࠿ࡽ࡞ࡿ஧┦⤌⧊ࢆ࿊ࡍࡿࠋྠヨᩱࡢ㑄⛣㒊ࡣࠊẕᮦ㒊࡜࡯ࡰྠᵝࡢ➼㍈ Į ⢏㒊࡜࣓ࣛࣛ⤌⧊㒊࡜࠿ࡽ࡞ࡿ஧┦⤌⧊ࢆ࿊ࡍࡿࠋࡍ࡞ࢃࡕࠊ150-140-STA ࡛ࡣࠊᨩᢾ㒊࡜㑄⛣㒊࣭ẕᮦ㒊࡜࡛࣑ࢡࣟ⤌⧊ࡢᙧᡂࡢ௙᪉ࡀ␗࡞ࡿࡀࠊ୧⪅࡜ࡶ஧┦⤌⧊࡛࠶ࡿ࡜࠸࠺Ⅼ࡛ࡣඹ㏻ࡋ࡚࠸ࡿࠋ

400

AS

390

150-140-SR
150-140-STA

380
Vickers hardness / Hv

RS

150-140-asweld

370
360
350
340
330
Welding direction

320
310

Stir zone

300
-16

-12

-8

-4
0
4
Distance from center of welded zone / mm

812

ᅗ 1 150-140-asweldࠊ150-140-SR ࠾ࡼࡧ 150-140-STAᅗ 2  150-140-asweld ࠊ 150-140-SR ࠾ ࡼ ࡧࡢᨩᢾ㒊ࠊ㑄⛣㒊࠾ࡼࡧẕᮦ㒊࡟࠾ࡅࡿ࣑ࢡࣟ⤌⧊

150-140-STA ࡢᨩᢾ㒊࠾ࡼࡧࡑࡢ㏆ഐࡢ◳ࡉ

16ศᕸᅗ 2 ࡟ 150-140-asweldࠊ150-140-SR ࠾ࡼࡧ 150-140-STA ࡢᨩᢾ㒊࠾ࡼࡧࡑࡢ㏆ഐࡢ◳ࡉศᕸࢆ♧ࡍࠋ150-140-asweld ࠾ࡼࡧ 150-140-SR ࡛ࡣࠊᨩᢾ㒊ࡢ◳ࡉࡀẕᮦ㒊ࡢ◳ࡉ࡟ẚ࡭࡚㧗࠸ࠋ࣑ࢡࣟ⤌⧊ほᐹࡢ⤖ᯝ࠿ࡽࠊࡇࢀࡣ᥋ྜ᫬࡟࣓ࣛࣛ⤌⧊ࡀᙧᡂࡋࠊࡑࡢ⤌⧊ࡀ⣽࠿࠸ࡇ࡜࡟㉳ᅉࡍࡿ࡜⪃࠼ࡽࢀࡿࠋࡉࡽ࡟ࠊ150-140-SR ࡣࠊ150-140-asweld ࡟ẚ࡭࡚ࠊᨩᢾ㒊࡟࠾࠸࡚ࡶẕᮦ㒊࡟࠾࠸࡚ࡶ◳ࡉࡀ㧗࠸ࠋࡇࡢཎᅉ࡟㛵ࡋ࡚ࡣࡉࡽ࡞ࡿヲ⣽࡞࣑ࢡࣟ⤌⧊ほᐹࢆᚲせ࡜ࡍࡿࡀࠊ150-140-SR ࡀ 150-140-asweld ࡟ẚ࡭࡚◳ࡉࡀ㧗࠸ࡢࡣᛂຊ㝖ཤฎ⌮᫬࡟᫬ຠࡀ㐍ࢇࡔࡓࡵ࡛࠶ࡿ࡜᥎

ࡉࢀࡿࠋ୍᪉ࠊ150-140-STA ࡢ◳ࡉศᕸࡣࠊ

150-140-asweld ࠾ࡼࡧ 150-140-SR ࡢ◳ࡉศᕸ࡜ࡣ␗࡞ࡾࠊ
ᨩᢾ㒊࡜ẕᮦ㒊࡜࡛◳ࡉ࡟኱ࡁ࡞㐪࠸ࡣㄆࡵࡽࢀ࡞࠸ࠋ
150-140-asweld ࠾ࡼࡧ 150-140-SR ࡢࡼ࠺࡟ᨩᢾ㒊࡜ẕᮦ㒊࡜࡛◳ࡉ࡟㐪࠸ࡀ࠶ࡿ࡜ࠊࡑࢀࡽࡢቃ⏺࡛ᛂຊ㞟୰ࡋࡸࡍࡃ࡞ࡿ࡜⪃࠼ࡽࢀࡿࡢ࡛ࠊ150-140-STA ࡢ࡯ࡰᆒ୍࡞◳ࡉศᕸࡣ⑂ປ≉ᛶࡢᨵၿ࡟᭷฼࡟ാࡃ࡜⪃࠼ࡽࢀࡿࠋ
ࡉࡽ࡟ࠊ150-140-STA ࡢ◳ࡉࡣࠊ150-140-SR ࡸ 150-140-asweld ࡟ẚ࡭࡚඲యⓗ࡟㧗ࡃࠊẕᮦࡼࡾࡶᙉ໬ࡉࢀ࡚࠸ࡿ
࡜࠸࠼ࡿࠋ࣑ࢡࣟ⤌⧊ほᐹࡢ⤖ᯝ࠿ࡽࠊ150-140-STA ࡢ◳໬ࡣࠊ⇕ฎ⌮࡟ࡼࡿ஧┦⤌⧊ࡢᙧᡂ࡟㉳ᅉࡍࡿ࡜⪃࠼ࡽ
ࢀࡿࠋ
4.

⤖ㄽ
᭱ࡶỗ⏝ࡢࢳࢱࣥྜ㔠࡛࠶ࡿ Ti-6Al-4V ྜ㔠࡟ᦶ᧿ᨩᢾ᥋ྜࢆ᪋ࡋࠊ᥋ྜ㒊࠾ࡼࡧࡑࡢ㏆ഐࡢ࣑ࢡࣟ⤌⧊࡜◳ࡉࢆホ౯ࡋࡓࠋࡑࡢ⤖ᯝࠊ௨ୗࡢ▱ぢࢆᚓࡓࠋ㸦1㸧 ౪ヨᮦ࡜ࡋ࡚➼㍈ Į ⤌⧊ࢆ᭷ࡍࡿ Ti-6Al-4V ྜ㔠ࢆ⏝࠸ࡓࡀࠊ᥋ྜࡲࡲᮦࡢ᥋ྜ㒊ࡣ࣓ࣛࣛ⤌⧊ࢆ࿊ࡋࡓ
ࡇ࡜࠿ࡽࠊ᥋ྜ㒊ࡣ ȕ ࢺࣛࣥࢨࢫ௨ୖࡲ࡛

ᗘࡀୖ᪼ࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ

㸦2㸧 ᛂຊ㝖ཤฎ⌮࡟ࡼࡾ᥋ྜ㒊࠾ࡼࡧẕᮦ㒊ࡢ࣑ࢡࣟ⤌⧊ࡣ᥋ྜࡲࡲࡢ≧ែ࠿ࡽ࡯࡜ࢇ࡝ኚ໬ࡋ࡞࠿ࡗࡓࡀࠊ
⁐య໬᫬ຠฎ⌮࡟ࡼࡾ᥋ྜ㒊ࡶẕᮦ㒊ࡶ➼㍈ Į ⤌⧊࡜࣓ࣛࣛ⤌⧊࡜࠿ࡽ࡞ࡿ஧┦⤌⧊ࢆ࿊ࡋࡓࠋ
㸦3㸧 ⁐య໬᫬ຠฎ⌮࡟ࡼࡾࠊ᥋ྜࡲࡲࡢ≧ែ࡟ẚ࡭࡚ࠊ᥋ྜ㒊࠾ࡼࡧẕᮦ㒊ࡢ◳ࡉࡀୖ᪼ࡋࡓࠋࡉࡽ࡟ࠊ᥋ྜ
㒊࠾ࡼࡧẕᮦ㒊ࡢ◳ࡉࡢᕪࡀῶᑡࡋࠊ࡯ࡰᆒ୍࡞◳ࡉศᕸ࡜࡞ࡗࡓࠋ
5.

ཧ⪃ᩥ⊩

[1] K. Kitamura, H. Fujii, Y. Iwata, Y. S. Sun and Y. Morisada: Mater. Design 46 (2013) 348-354.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 98 −

ᦶ᧿⢊ᮎ↝⤖࡟ࡼࡾస〇ࡉࢀࡓ Al/SiC 」ྜᮦᩱࡢ⇕ఏᑟ⋡ᆅ᪉⊂❧⾜ᨻἲே኱㜰⏘ᴗᢏ⾡◊✲ᡤ
ᮌඖ៞ஂ
1. ┠ⓗ
Al/SiC 」ྜᮦᩱࡣ㸪㧗⇕ఏᑟᛶ㸪ప⇕⭾ᙇ㸪పࢥࢫࢺࢆ୧❧ࡋ㸪㟁Ꮚᶵჾࡢᑠᆺ໬㸪㧗ᛶ⬟໬࡟ᐤ୚ࡋ࠺ࡿᨺ
⇕ᮦᩱ࡜ࡋ࡚᭷ᮃ࡛࠶ࡿ㸬ࡑࡢ〇㐀ἲ࡜ࡋ࡚ࡣ⁐〇ἲ࡜⢊ᮎ෬㔠ἲࡀ୺࡛࠶ࡿࡀ㸪Ỉෆࡽ 1) ࡣᅛᾮඹᏑ≧ែࢆ฼⏝ࡋࡓᨺ㟁ࣉࣛࢬ࣐↝⤖㸦Spark plasma sintering; SPS㸧࡟ࡼࡗ࡚⏺㠃཯ᛂࢆ᭱ᑠ㝈࡟ᢚ࠼ࡘࡘ⦓ᐦ໬ࢆᅗࡾ㸪
SiC ⢏Ꮚయ✚ศ⋡ 50㸣࡟࠾࠸࡚ 252 W/mK ࡢ⇕ఏᑟ⋡ࢆᚓࡓ㸬ᮏ◊✲࡛ࡣ㸪ᅗ㸯ࡢࡼ࠺࡟෇ᰕ≧ᅇ㌿ᕤලࢆࢲ࢖࡜ࡋ࡚⏝࠸㸪ᦶ᧿⇕࠾ࡼࡧᅽຊ࡟ࡼࡾ⢊ᮎࢆ↝⤖ࡍࡿᦶ᧿⢊ᮎ↝⤖㸦Friction powder sintering; FPS㸧2) ࢆ
Al/SiC 」ྜᮦᩱࡢస〇࡟ᛂ⏝ࡋ㸪ࡑࡢ⇕ఏᑟ⋡ࢆホ౯ࡋࡓ 3)㸬
2. ◊✲᪉ἲ

D-SiC
ᅗ 2 ࡟ཎᩱ⢊ᮎࡢ SEM ෗┿ࢆ♧ࡍ㸬Al ⢊ᮎࡣᖹᆒ⢏Ꮚᚄ 20 Pm㸪⢊ᮎࡣᖹᆒ⢏Ꮚᚄ 109.8 Pm ࡢࡶࡢࢆ⏝࠸㸪」ྜᮦᩱ୰ࡢ SiC ⢏Ꮚࡢయ✚⋡ࡣ 50㸣୍࡛ᐃ࡜ࡋࡓ㸬ᅗ 1 ࡟࠾ࡅࡿᕤලᅇ㌿ᩘࡣ 1000 rpm㸪ຍᅽຊࡣ
31 MPa ࡜ࡋ㸪↝⤖᫬㛫㸦ຍᅽຊ฿㐩ᚋࡢຍᅽ᫬㛫㸧ࢆ 1㸪2, 2.5 ศ࡜ࡋࡓ㸬」ྜᮦᩱࡢ୰ኸ࠿ࡽ 10mm10mm2mm ࡢヨ㦂∦ࢆษࡾฟࡋ㸪໬ྜ≀⏕ᡂࡢ᭷↓ࢆ X ⥺ᅇᢡ ᐃ࡟ࡼࡾ☜ㄆࡋ㸪⇕ఏᑟ⋡ࡣ࣮ࣞࢨ࣮ࣇࣛࢵ
ࢩࣗἲ࡟ࡼࡿ ᐃ⿦⨨㸦NETZSCH ♫〇 LFA457㸧ࢆ⏝࠸࡚ホ౯ࡋࡓ㸬ᅗ 1 ᦶ᧿⢊ᮎ↝⤖㸦FPS㸧
3. ⤖ᯝ࠾ࡼࡧ⪃ᐹ
ᅗ 3 ࡟ FPS ↝⤖యࡢ᩿㠃࣐ࢡࣟ⤌⧊࠾ࡼࡧ࣑ࢡࣟ⤌⧊ࡢ↝⤖᫬㛫౫Ꮡᛶࢆ♧ࡍ㸬↝⤖᫬㛫 1 ศ࡛ࡣࢲ࢖࡟㏆࠸ഃࡢࡳ⦓ᐦ໬ࡀ㐍ࡳ㸪཯ᑐഃ࡛ࡣ✵㝽ࡀ┠❧ࡗ࡚࠾ࡾ㸪┦ᑐᐦᗘࡣ 81㸣㸪⇕ఏᑟ⋡ࡣ 66 W/mK ࡛࠶ࡗࡓ㸬↝⤖᫬㛫 2 ศ࡛⦓ᐦ໬ࡀ㐍⾜ࡋ㸪┦ᑐᐦᗘ 91㸣㸪⇕ఏᑟ⋡ࡣ 110 W/mK ࡟㐩ࡋࡓ㸬↝⤖᫬㛫 2.5 ศ࡛ࡣࡉࡽ࡟⦓
ᐦ໬ࡀ㐍⾜ࡋࡓࡀ㸪ᕤලࡢᅇ㌿࡟ࡼࡾ࣏ࣥࢳᮦᩱࡢ Al ᯈࡢ᧠ᢾࡀ⏕ࡌ㸪」ྜᮦᩱࡢ୍㒊ࡀᕳࡁୖࡆࡽࢀ࡚ཌࡉ
ࡀ୙ᆒ୍࡜࡞ࡗࡓࡓࡵ㸪ᐦᗘ࠾ࡼࡧ⇕ఏᑟ⋡ࡢホ౯ࡣ⾜ࢃ࡞࠿ࡗࡓ㸬↝⤖᫬㛫 2 ศࡢヨᩱ࡟ᑐࡋ࡚ X ⥺ᅇᢡ ᐃࢆ⾜ࡗࡓ࡜ࡇࢁ㸪⏺㠃཯ᛂ 4Al+3SiCЍAl4C3+3Si ࡟ࡼࡿⅣ໬≀࠾ࡼࡧ Si ࡢ⏕ᡂࡀᑡ㔞࡞ࡀࡽ☜ㄆࡉࢀࡓ㸬ᚓࡽࢀࡓ」ྜᮦᩱࡢ⇕ఏᑟ⋡ࡣࣂࣝࢡ Al ࡢ⇕ఏᑟ⋡ࡢᩥ⊩್ 210 W/mK ࡢ༙ศ⛬ᗘ࡛࠶ࡗࡓ㸬ప࠸⇕ఏᑟ⋡ࡢせᅉ࡜ࡋ࡚ࡣ㸪ヨᩱࡢᐦᗘࡀ୙༑ศ࡛࠶ࡿࡇ࡜㸪࠾ࡼࡧ⏺㠃཯ᛂ࡟ࡼࡿ໬ྜ≀┦ࡢ⏕ᡂࡀᣲࡆࡽࢀࡿ㸬⾲ 1 ࡟௚ࡢࣉࣟࢭࢫ࡜ࡢẚ㍑ࢆ♧ࡍ㸬FPS ࡣ⌧≧࡟࠾࠸࡚ࡣ༑ศ࡞┦ᑐᐦᗘ࠾ࡼࡧ⇕ఏᑟ⋡ࡀᚓࡽࢀ࡚࠸࡞࠸ࡶࡢࡢ㸪௚ࡢ↝⤖ἲ࡜ẚ㍑ࡋ࡚▷᫬㛫࡛㧗య✚⋡⢏Ꮚศᩓ」ྜᮦᩱࢆ๰〇ࡋ࠺ࡿ࣏ࢸࣥࢩࣕࣝࡀ࠶ࡿ㸬4. ⤖ㄽᦶ᧿⢊ᮎ↝⤖࡟ࡼࡾ㧗య✚⋡ SiC ⢏Ꮚศᩓ Al 」ྜᮦᩱࢆస〇࡛ࡁࡿࡇ࡜ࢆ♧ࡋࡓ㸬௒ᚋࣉࣟࢭࢫ᮲௳ࡢ᭱㐺໬࡟ࡼࡾ⦓ᐦ໬ࡀྍ⬟࡟࡞ࢀࡤ㸪ᨺ⇕ᮦᩱࡢ▷᫬㛫〇㐀ࣉࣟࢭࢫࡢᐇ⌧ࡀᮇᚅ࡛ࡁࡿ㸬
5. ཧ⪃ᩥ⊩1) K. Mizuuchi, et al., J. Jpn. Soc. Powder Powder Metallurgy, 58 (2011) 160-164.
2) Y. Hangai, et al., Metall. Mater. Trans., A 43 (2012) 802-805.
3) Y. Kimoto, et al., J. Jpn. Soc. Powder Powder Metallurgy, 63 (2016) 563-567.
4) K. Mizuuchi, et al., J. Jpn. Soc. Powder Powder Metallurgy, 60 (2013) 202-208.

− 99 −

ᅗ 2 ཎᩱ⢊ᮎ

ᅗ 3 ᦶ᧿⢊ᮎ↝⤖࡟ࡼࡾస〇ࡉࢀࡓ Al-50vol.%SiC 」ྜᮦᩱࡢ⤌⧊࡜┦ᑐᐦᗘ⾲ 1 ✀ࠎࡢࣉࣟࢭࢫ࡟ࡼࡾస〇ࡉࢀࡓ Al/D-SiC 」ྜᮦᩱࡢ⇕ఏᑟ⋡
ProcessVF

Gas pressure infiltration
Pressureless infiltration
SPS
SPS
SPS
FPS
FPS

(%)
58
65
65
65
50
50
50

Particle
distribution
bimodalbimodalmonomodal
bimodalmonomodal
monomodal
monomodal

Heating
time
(sec)
6000
560
461
461
461

Process
time
(sec)
1800
7200
1560
1560
1560
60
120

Relative
density
(%)
99
99
95
98
1000
81
91

TC
Author(W/mK)
228
186
171
226
252
66
110

J. M. Molina
K. ChuK. Mizuuchi 1)
K. Mizuuchi 4)
K. Mizuuchi 1)
This work 3)
This work 3)

㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 100 −

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6(0
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− 102 −

◊✲ㄢ㢟   㕲㗰ᮦᩱࡢᦶ᧿ᨩᢾ᥋ྜ㸦FSW㸧࡜⥅ᡭࡢᶵ⬟ホ౯ ᦶ᧿᧠ᢾࣉࣟࢭࢫ࡟ࡼࡿ࣮ࣞࢨ⫗┒ᒙ㔠ᒓ⤌⧊ࡢᚤ⣽໬⚄ዉᕝ┴⏘ᴗᢏ⾡ࢭࣥࢱ࣮ᶵᲔ࣭ᮦᩱᢏ⾡㒊⸃⏣ ᑑ㝯
1.

⥴ゝᙜࢭࣥࢱ࣮࡛ࡣࠊపྜ㔠㗰ୖ࡬⢊ᮎ㧗㏿ᗘᕤල㗰⢊ᮎ㸦SKH40㸧ࢆ⏝࠸࣮ࣞࢨ⫗┒⁐᥋࡟ࡼࡾ 1,000HV ⛬ᗘࡢ㧗◳ᗘࡢ◳໬ᒙࢆᙧᡂࡋࡓ 1).ࡋ࠿ࡋ⫗┒ᒙࡣจᅛ⤌⧊࡛࠶ࡿࡓࡵࠊᶞᯞ≧ᬗ࡜࡞ࡾࡑࡢ㛫㝽࡟ࡣྜ㔠ඖ⣲ࡀ⃰໬ࡋࠊࢿࢵࢺ࣮࣡ࢡ≧ࡢඹᬗⅣ໬≀ࡀᬗฟࡍࡿࠋ
ࡇࡢඹᬗⅣ໬≀ࡣ⫗┒ᒙࡢ㠌ᛶࡸ⪏㣗ᛶపୗࡢཎᅉ࡜࡞ࡿࡢ࡛ࠊ
ᬗฟࡋࡓⅣ໬≀ࢆᚤ⣽࡟ศᩓࡉࡏࡿࡇ࡜ࡀᮃࡲࢀࡿࠋ
ᦶ᧿ᨩᢾࣉࣟࢭࢫࢆ࣮ࣞࢨ⢊య⫗┒ᒙ࡟㐺⏝ࡍࡿ࡜ࠊࢿࢵࢺ࣮࣡ࢡ≧Ⅳ໬≀ࡀᚤ⣽࡟ศᩓ࡛ࡁࡿࡇ࡜ࡀ᫂ࡽ࠿
ࡉࢀ࡚࠸ࡿ 2㸧ࠋሗ࿌ࡉࢀࡓ◊✲࡛ࡣࠊࢶ࣮ࣝࡢ㉮ᰝࡣ୍ᅇࡢࡳ࡛ᨵ㉁ࡉࢀࡿ㡿ᇦࡣ㝈ᐃࡉࢀࡿࠋ⏝㏵࡟ࡼࡗ࡚ࡣ
ᗈ࠸㠃✚ࡢᨵ㉁ᒙࢆᚲせ࡜ࡍࡿࡇ࡜ࡶ࠶ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࡼࡾᗈ࠸ฎ⌮㡿ᇦࡢᙧᡂࢆ┠ⓗ࡟ࠊࢶ࣮ࣝ㉮ᰝࢆᖹ⾜⛣ືࡉࡏ࡚㸰ᅇ⾜࠸ࠊᚋ⥆ࡢࢶ࣮ࣝ㉮ᰝ࡟ࡼࡾඛ⾜ࡋ࡚ᦶ᧿ᨩᢾࣉࣟࢭࢫࢆ⾜ࡗࡓ㡿ᇦࡢ㔠ᒓ⤌⧊࠾ࡼࡧ◳ࡉࡀኚ໬ࡍࡿ࠿ྰ࠿ࢆㄪ࡭ࡓࠋ
2.

ᐇ㦂᪉ἲ୍⯡ᵓ㐀⏝ᅽᘏ㗰ᮦ SS400 ୖ࡬పⅣ⣲ࡢ࣐ࣝࢸࣥࢧ࢖ࢺ⣔ࢫࢸࣥࣞࢫ㗰(SUS420J1)⢊ᮎ࡟ࡼࡾ⫗┒ᒙࢆᙧᡂࡋࡓࠋ」ᩘᅇࢶ࣮ࣝࢆ㉮ᰝࡍࡿࡓࡵࠊ◳ᗘࡀ㧗࠸㧗㏿ᗘᕤල㗰ࡢ⫗┒ᒙ࡛ࡣࠊࢶ࣮ࣝࡢᦶ⪖ࡀᠱᛕࡉࢀࡿࡓࡵࠊ
600HV ࡜୰⛬ᗘࡢ◳ࡉࡢ⫗┒ᒙࡀᙧᡂ࡛ࡁࡿ⢊ᮎࢆ㑅ᢥࡋࡓࠋ⫗┒ᚋ◊๐࡟ࡼࡾ⾲㠃ࢆᖹ⁥ࡋᦶ᧿ᨩᢾࣉࣟࢭ
ࢫ㸦௨㝆 FSP ࡜グࡍ㸧ࢆ⾜ࡗࡓࠋࢶ࣮ࣝᮦ㉁ࡣ㉸◳ྜ㔠࡛ࠊ3mm ࣆࢵࢳ࡛ᖹ⾜࡟㸰ᅇ㉮ᰝࡋࡓࠋࡑࡢᚋ࣡࢖ࣖ
࣮ᨺ㟁ຍᕤ࡟ࡼࡾ FSP ᪉ྥ࡟ᑐࡋ┤ゅ࡟ษ᩿ࡋ⤌⧊ほᐹ࣭◳ࡉ ᐃ⏝ヨᩱࢆస〇ࡋࡓࠋ
3.

⤖ᯝཬࡧ⪃ᐹ
Fig. 1 ࡟ FSP ฎ⌮ᚋࡢእほࢆ෗┿ࢆ♧ࡍࠋ୍㒊࡟ࣂࣜࡀぢࡽࢀࡿࡀࠊ➼㛫㝸࡞Ἴ┠ࢆ࿊ࡋ⾲㠃࠿ࡽࡣ๭ࢀ➼ࡢḞ㝗ࡀぢࡽࢀ࡞࠿ࡗ
ࡓࠋࡲࡓࢶ࣮ࣝࡣ◚ᦆࡸ㢧ⴭ࡞ᦶ⪖ࡣㄆࡵࡽࢀ࡞࠿ࡗࡓࠋ
Fig.2 ࡣ᩿㠃ࡢගᏛ㢧ᚤ㙾෗┿ࢆ♧ࡍࠋFig.2(a)ࡢ᩿㠃⤌⧊࡟࠾࠸࡚ࠊ⾲㠃௜㏆࡟᫂ࡿࡃぢ࠼ࡿ㡿ᇦࡀ FSP ฎ⌮㒊㸦ᨩᢾ㒊㸧࡜ᴫࡡ࣮࢜ࢫࢸࢼ࢖ࢺ໬ ᗘ࡟᪼ ࡉࢀࡓ㡿ᇦ࡛࠶ࡿࠋࡑࡢ࿘ᅖ࡟ࡣᑡ
ࡋ⃰ࡃ࢚ࢵࢳࣥࢢࡉࢀ࡚࠸ࡿ㡿ᇦࡣ࣮࢜ࢫࢸࢼ࢖ࢺ໬ ᗘ௨ୗ࡟᪼ ࡉࢀࡓ⇕ᙳ㡪㒊࡛࠶ࡿࠋFig.2(b)ࡢ⫗┒ᒙ࡛ࡣࢹࣥࢻࣛ࢖ࢺ⤌Fig.1 Appearance of FSPed layer
formed by twice tool scan.

⧊ࡀほᐹࡉࢀࡿࠋ᫂ࡿࡃぢ࠼ࡿ㡿ᇦࡀᶞᯞ≧ᬗ࡛ࠊ⢏≧࡟㯮ࡃぢ࠼ࡿ㡿ᇦࡀࢿࢵࢺ࣮࣡ࢡ≧࡟ศᕸࡋ࡚࠸ࡿࠋFig.2(c)ࡣ FSP ฎ⌮㒊ࡢ⤌⧊࡛࠶ࡿࠋ⫗┒㒊࡛ぢࡽࢀࡓ㔠ᒓ⤌⧊࡜ࡣᵝ┦ࡣ␗࡞ࡾࠊ
㯮ࡃ⢏≧࡟ぢࡽࢀࡿࡶࡢࡢࢧ࢖ࢬࡣᑠࡉࡃ࡞ࡾࡲࡓᆒ୍࡟ศᩓࡋ࡚ほᐹࡉࢀࡿࠋ
ࡑࡢศᩓ≧ἣࡣࠊ
㸯㸪㸰ࣃࢫ࡜ࡶྠᵝ࡞ᙧែ࡛࠶ࡗࡓࠋ
Fig.3 ࡣ⫗┒ᒙ࡜ FSP ฎ⌮㒊ࡢ㟁Ꮚ⥺࣐࢖ࢡࣟ࢔ࢼࣛ࢖ࢨ࡟ࡼࡿඖ⣲ྠᐃ⤖ᯝ࡛࠶ࡿࠋ
Fig.3(a)ࡢ⫗┒㒊࡛ࡣࠊCr ࡜ C ࡀྠࡌ఩⨨࡛Ⅼᅾࡋ᳨࡚ฟࡉࢀ࡚࠸ࡿࠋࡇࡢ㒊ศࡣࢡ࣒ࣟⅣ໬≀ࡀᬗฟࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡢศ
ᕸᙧែࡣ Fig.2(b)࡛ぢࡽࢀࡿ㯮࠸⢏≧ࡢࡶࡢ࡜ྠᵝ࡛࠶ࡿࡇ࡜࠿ࡽࠊගᏛ㢧ᚤ㙾෗┿ࡢ㯮࠸⢏≧ࡣࢡ࣒ࣟⅣ໬≀࡜ᛮࢃࢀࡿࠋ୍᪉ࠊFSP ฎ⌮㒊ࡣ Cr ࡜ C ࡣ࡯ࡰᆒ୍࡟ศᩓࡋ࡚࠸ࡿࠋFSP ฎ⌮࡟ࡼࡾࠊᬗฟࡋࡓⅣ໬≀ࡣᚤ⣽࡟ศᩓࡉࢀࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ

− 103 −

ḟ࡟ FSP ฎ⌮㒊ࡢ◳ࡉศᕸࢆồࡵࡓࠋFig.4 ࡟ࡑࡢ⤖ᯝࢆ♧ࡍࠋFSP ฎ⌮㒊ࡣ 650HV ๓ᚋࡢ◳ࡉࢆ᭷ࡋࠊ㸯ࠊ㸰ࣃࢫࡢ㛫࡛࡯ࡰ୍ᐃ࡛࠶ࡗࡓࠋ࡞࠾ࠊFSP ฎ⌮㒊ࡢ୧➃௜㏆࡛ࡣࠊ◳ࡉࡀ 400HV ⛬ᗘ࡟పୗࡋ࡚࠸ࡿࠋࡇࢀࡣ FSPฎ⌮᫬ࡢⓎ⇕࡟ࡼࡿ᪼ ࡟ࡼࡾ↝ᡠࡋࡀ⏕ࡌࡓ࡜⪃࠼ࡽࢀ
ࡿࠋྠᵝ࡞ ᗘୖ᪼ࡣࠊ㸰ࣃࢫ┠ࡢࢶ࣮ࣝ㉮ᰝ᫬࡟㸯ࣃࢫ┠ࡢ FSP ฎ⌮㒊࡟࠾࠸࡚ࡶ⏕ࡌ࡚࠸ࡿ࡜᥎ᐹࡉࢀࡿࠋࡋ࠿
ࡋ㸯ࣃࢫࡢ FSP ฎ⌮㒊࡟ࡣ◳ᗘపୗࡣ⏕ࡌ࡚࠸࡞࠸ࠋࡇࢀ
ࡣ FSP ฎ⌮㒊࡟ẚ࡭ࠊⓎ⇕࡟ࡼࡿ⇕ᙳ㡪㒊ࡀᗈ࠸ࡇ࡜ࡀཎ
ᅉ࡜⪃࠼ࡽࢀࡿࠋࡍ࡞ࢃࡕࠊ㸰ࣃࢫฎ⌮᫬࡟࠾࠸࡚ࠊ㸯ࣃ
ࢫࡢFSP ฎ⌮㒊඲యࡀ࣮࢜ࢫࢸࢼ࢖ࢺ໬ ᗘ௨ୖ࡟᪼ ࡉࢀࠊࢶ࣮ࣝ㏻㐣ᚋࡢᛴ෭࡟ࡼࡾ㸯ࠊ㸰ࣃࢫࡢ FSP ฎ⌮㒊ࡀ

Fig.2 Cross section of FSPed layer.
(a)Macro structure and Micro structureof (b)Cladding layer and (c)FSPed layer.

ྠ᫬࡟࣐ࣝࢸࣥࢧ࢖ࢺኚែࡀ⏕ࡌ◳ࡉࡢኚ໬ࡀ⏕ࡌ࡞࠿ࡗࡓ࡜⪃࠼ࡽࢀࡿࠋࣃࢫᩘࢆቑࡸࡋ࡚࠸ࡃ࡜ࡸࡀ࡚ࡣ㌾໬㒊ࡀ⏕ࡌࡿ࡜ᛮࢃࢀࡿࠋ
4.

⤖ゝ
పⅣ⣲ࡢ࣐ࣝࢸࣥࢧ࢖ࢺ⣔ࢫࢸࣥࣞࢫ㗰⢊ᮎ࡟ࡼࡾ⫗┒ᒙࢆᙧᡂࡋࠊᦶ᧿ᨩᢾࣉࣟࢭࢫࢆᖹ⾜⛣ືࡉࡏ࡚㸰ᅇฎ⌮ࢆ⾜࠸ࠊ㔠ᒓ⤌⧊ཬࡧ◳ࡉࡢኚ໬ࢆㄪ࡭ࡓࠋᚓࡽࢀࡓ⤖ᯝ

Fig.3 Element distribution of both (a)cladding layer and (b)FSPed layer.

ࢆ௨ୗグࡍࠋ
1㸧ᶞᯞ≧ᬗ㛫㝽࡟ᬗฟࡋࡓⅣ໬≀ࡣࠊᮏࣉࣟࢭࢫ࡟ࡼࡾᚤ⣽໬ࡍࡿ࡜࡜ࡶ࡟ᆒ୍࡟ศᩓࡍࡿࠋ
2㸧2 ࣃࢫ࠸ࡎࢀ࡟࠾࠸࡚ࡶ◳ࡉࡣ࡯ࡰᆒ୍࡛࠶ࡿࠋࡇࢀࡣᮏ
ࣉࣟࢭࢫฎ⌮᫬࡟᪼ ࡉࢀࡿ㡿ᇦࡀࢶ࣮࡛ࣝᨩᢾࡉࢀࡿ
㡿ᇦࡼࡾᗈ࠸ࡓࡵࠊ㸯㸪㸰ࣃࢫࡢᨩᢾ㒊ࡣ࣮࢜ࢫࢸࢼ࢖ࢺ໬ ᗘ௨ୖ࡟᪼ ࡉࢀࠊࢶ࣮ࣝ㏻㐣ᚋࡢᛴ෭࡟ࡼࡾ࣐ࣝࢸ
Fig.4 Hardness distribution of FSPedlayer.

ࣥࢧ࢖ࢺኚែࡀ⏕ࡌࡿࡓࡵ࡜᥎ᐹࡉࢀࡿࠋ
5.

ཧ⪃ᩥ⊩

1㸧 ⸃⏣ᑑ㝯, 㧗ᶫ࿴ோ, ୰ᮧ⣖ኵ, బ㔝᫂ᙪ, ▼ᕝẎ, ㉺ᬛ኱௓㸸ᆺᢏ⾡, 31-8(2016), pp.66–67. 
2㸧 Y. Morisada, H. Fujii, T. Mizuno, G. Abe, T. Nagaoka, M. Fukusumi㸸Surf. Coat. Technol. 205 (2011),
pp.3397–3403.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 104 −)6: ࡟ࡼࡿࢭ࣑ࣛࢵࢡࢫ࡜㔠ᒓࡢ᥋ྜᢏ⾡ࡢ◊✲-$;$㸦Ᏹᐂ⯟✵◊✲㛤Ⓨᶵᵓ㸧బ⸨ⱥ୍ࠊụ⏣༤ⱥࠊᑠᯘ⚽அࠊ⸨஭๛
1,06㸦≀㉁࣭ᮦᩱ◊✲ᶵᵓ㸧ᮧୖ⚽அࠊୗ⏣୍ဢ ㅖゝ ࢭ࣑ࣛࢵࢡࢫࡣ㍍㔞࠿ࡘᙉᗘ≉ᛶ࡟ඃࢀࡿࡓࡵࠊ࢞ࢫࢱ࣮ࣅࣥࠊ⯟✵࢚ࣥࢪࣥࠊ⮬ື㌴⏝࢚ࣥࢪࣥࠊ໬Ꮫࣉࣛ
ࣥࢺࡢ࣏ࣥࣉ㒊ရ➼ࡢ⏘ᴗᶵᲔ࡟ຍ࠼ࠊ༙ᑟయࠊ་⒪⏝㒊ရ➼࡬ࡶᖜᗈࡃὶ㏻ࡋ࡚࠸ࡿࠋࡇࢀࡲ࡛ࢭ࣑ࣛࢵࢡࢫ
࡜㔠ᒓࡢ᥋ྜᢏ⾡ࡣ☜❧ࡉࢀ࡚࠾ࡽࡎࠊ㐺ษ࡞㧗ᙉᗘࠊ⪏㓟໬ᛶࠊ⪏ஂᛶࢆ᭷ࡋࡓࢭ࣑ࣛࢵࢡࢫ࡜㔠ᒓ㸦≉࡟

7L ⣔㔠ᒓ㸧ࡢ᥋ྜᢏ⾡ࡢ☜❧ࡀồࡵࡽࢀ࡚࠸ࡿࠋ ᮏ◊✲࡛ࡣ᥋ྜᢏ⾡ࡢ୍ࡘ࡜ࡋ࡚ᦶ᧿ᨩᢾ᥋ྜ㸦)6:㸧࡟╔┠ࡋࠊ)6: ࡟ࡼࡿࢭ࣑ࣛࢵࢡࢫ࡜㔠ᒓࡢ᥋ྜᢏ⾡ࡢ☜❧࡟ྥࡅࡓ◊✲ࢆ኱㜰኱Ꮫࠊ≀㉁ᮦᩱ◊✲ᶵᵓ㸦1,06㸧ࠊᏱᐂ⯟✵◊✲㛤Ⓨᶵᵓ㸦-$;$㸧ࡢඹྠ◊✲࡜ࡋ࡚ᐇ᪋
ࡋ࡚࠸ࡿࠋᮏሗ࿌࡛ࡣࠊᖹᡂ  ᖺᗘ࡟ᐇ᪋ࡋࡓ )6: ࡢࢺࣛ࢖࢔ࣝࡢ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ ヨ㦂᪉ἲ
౪ヨᮦ࡟ࡣࢭ࣑ࣛࢵࢡࢫ࡜ࡋ࡚❅໬ࢣ࢖⣲ࡢヨ㦂∦ࠊ7L ⣔㔠ᒓ〇ヨ㦂∦ࢆ౑⏝ࡋࡓࠋ௒ᖺᗘࡢࢺࣛ࢖࢔ࣝ࡟࠶
ࡓࡾࠊᖹᡂ  ᖺᗘࡢ⤖ᯝࢆ㋃ࡲ࠼࡚௨ୗࡢ᪉㔪࡛⾜ࡗࡓࠋ9᥋ྜ᮲௳ࢆࣃ࣓ࣛࢺࣜࢵࢡ࡟ㄪᰝࡍࡿࡓࡵࠊ㔜ࡡ᥋ྜ࡟ࡼࡿࢫ࣏ࢵࢺ )6: ࡛ࢺࣛ࢖࢔ࣝࢆ⾜࠺ࠋ9㔜ࡡ᥋ྜࡢ㝿࡟ࣟ࢘ᮦࢆ㛫࡟ᣳࡳࠊ)6: ࡟ࡼࡿᅛ┦᥋ྜࠊࡶࡋࡃࡣࣟ࢘ᮦࡢ⼥Ⅼࡲ࡛ ᗘࢆୖࡆࡿᾮ┦᥋ྜࢆ┠ᣦࡍࠋ㸦㐣ཤࡢ◊✲࡛ࠊࣟ࢘ᮦ࡟ࡼࡿࢭ࣑ࣛࢵࢡࢫ࡜ࢳࢱࣥྜ㔠ࡢᣑᩓ᥋ྜࡢᐇ⦼࠶ࡾ㸧

9ࢶ࣮ࣝࡢ◚ᦆࠊ㐣኱࡞ᦶ⪖ࢆ㜵ࡄࡓࡵࠊࢶ࣮ࣝࢆ఩⨨ไᚚࡋ࡚ᅛᐃࡍࡿࠋ

≉࡟ࠊࣟ࢘ᮦ࡟ࡼࡿࢭ࣑ࣛࢵࢡࢫ࡜ࢳࢱࣥྜ㔠ࡢ᥋ྜ࡛ࡣࠊࣟ࢘ᮦࡢ⼥Ⅼ௨ୖ࡟ࣟ࢘௜ࡅᗘࢆタᐃࡍࡿᚲせࡀ࠶ࡾࠊṧ␃ᛂຊࡀ኱ࡁ࠸ࡇ࡜ࡀㄢ㢟࡜࡞ࡗ࡚࠸ࡓࠋ)6: ࡟ࡼࡾప ࡛᥋ྜ࡛ࡁࢀࡤࠊṧ␃ᛂຊࡢపῶࠊࡍ࡞ࢃࡕ
᥋ྜ㒊⏺㠃ࡢᙉᗘࡀྥୖࡍࡿࡇ࡜ࢆᮇᚅࡋࡓࠋ
ࢺࣛ࢖࢔ࣝࡣ  ᅇᐇ᪋ࡋࡓࠋ୺࡞ࣃ࣓࣮ࣛࢱࢆ௨ୗ࡟♧ࡍࠋྛࣃ࣓࣮ࣛࢱࡸࢶ࣮ࣝ఩⨨࡟ࡘ࠸࡚ࡣࢺࣛ࢖࢔ࣝ
ࢆ㐍ࡵ࡞ࡀࡽࡑࡢሙ࡛ㄪᩚࡋ࡞ࡀࡽヨ㦂ࢆ㐍ࡵࡓࠋࢶ࣮ࣝᅇ㌿ᩘ

㸸㹼USP

ࢶ࣮ࣝಖᣢ᫬㛫㸸㹼VHF

ࢺࣛ࣋ࣝ๓㐍ゅ㸸r࡛ᅛᐃ ヨ㦂⤖ᯝ࡜⪃ᐹ ࢺࣛ࢖࢔ࣝᚋࡢヨ㦂∦ࡢ୍౛ࢆᅗ  ࡟♧ࡍࠋᅗ࡟♧ࡍࢺࣛ࢖࢔ࣝࡣࠊࢭ࣑ࣛࢵࢡࢫࡢୖ࡟ 7L ྜ㔠ࢆ㔜ࡡࠊ㛫࡟ࣟ࢘ᮦࢆධࢀࡓࠋ)6: ࡣࢶ࣮ࣝᅇ㌿ᩘ USPࠊࢶ࣮ࣝಖᣢ᫬㛫 VHF ࡛⾜ࡗࡓࠋᕥ࡟♧ࡍ෗┿ࡣࢺࣛ࢖࢔ࣝᚋࡢ
ヨ㦂∦ࠊྑ࡟♧ࡍ෗┿ࡣ᩿㠃ほᐹ⏝࡟᥋ྜ㠃ࢆᶓษࡿࡼ࠺࡟࢝ࢵࢺࡋࡓᚋࡢヨ㦂∦࡛࠶ࡿࠋ ⤖ᯝ࡜ࡋ࡚ࡣᅛ┦ࠊࡶࡋࡃࡣᾮ┦᥋ྜ࡟ࡣ⮳ࡗ࡚࠾ࡽࡎࠊ࢝ࢵࢺ୰࡟᥋ྜ㠃ࡀྲྀࢀ࡚ࡋࡲࡗࡓࠋࡲࡓࣟ࢘ᮦࡀ
ࡠࢀᗈࡀࡗ࡚࠸࡞࠸ࡇ࡜࠿ࡽࠊ)6: ࡟ࡼࡿධ⇕㔞ࡀᑡ࡞ࡃࠊᙜึ᝿ᐃࡋ࡚࠸ࡓ᥋ྜ ᗘ࡟ࡣ⮳ࡗ࡚࠸࡞࠿ࡗࡓ࡜⪃࠼ࡽࢀࡿࠋ࠸ࡃࡘ࠿᮲௳ࢆኚ࠼࡚ࢺࣛ࢖࢔ࣝࢆ⾜ࡗࡓࡀࠊ⤖ᯝ࡜ࡋ࡚௒ᖺᗘࡢࢺࣛ࢖࢔࡛ࣝࡣ )6: ࡟ࡼࡿ᥋ྜ࡟
ࡣ⮳ࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓࠋ㐣ཤࡢ◊✲࡛ࠊࣟ࢘ᮦࢆ౑⏝ࡋࡓࢭ࣑ࣛࢵࢡࢫ࡜㔠ᒓࡢᾮ┦᥋ྜ࡛ࡣࠊࣟ࢘ᮦ࡟ྵ

− 105 −

ࡲࢀࡿᡂศࡀᣑᩓࡋࠊ᥋ྜ㒊⏺㠃࡛㔠ᒓ໬ྜ≀ࢆ⏕ᡂࡋ࡚᥋ྜ࡟⮳ࡗ࡚࠸ࡓࡀࠊ௒ᅇࡢࢺࣛ࢖࢔࡛ࣝࡣࣟ࢘ᮦࡀ
⼥Ⅼࡲ࡛⮳ࡗ࡚࠾ࡽࡎࠊᾮ┦᥋ྜ࡟⮳ࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓ࡜⪃࠼ࡽࢀࡿࠋᅗ 㸸ࢺࣛ࢖࢔ࣝᚋࡢヨ㦂∦㸦ᕥ㸸ࢺࣛ࢖࢔ࣝᚋࠊྑ㸸ࢺࣛ࢖࢔ࣝᚋ࡟᥋ྜ㠃ࢆ࢝ࢵࢺࡋ࡚㛤࠸ࡓࡶࡢ㸧 ࡞࠾ཧ⪃࡟ࠊᖹᡂ  ᖺᗘࡢ◊✲࡛ࢶ࣮ࣝ⾲㠃࡟㔠ᒓගἑࡀ☜ㄆࡉࢀࡓࢶ࣮ࣝࢆᑐ㇟࡟ࠊࢶ࣮ࣝࢆ⦪࡟ࢲ࢖ࣖࣔ
ࣥࢻ࢝ࢵࢱ࣮࡛࢝ࢵࢺࡋ࡚ヨ㦂∦࡜ࡢ᥋ྜ㠃ࡢ᩿㠃ࢆගᏛ㢧ᚤ㙾࡛ほᐹࡋࡓ⤖ᯝࢆ௨ୗ࡟♧ࡍࠋ୍㒊࡟ࡘ࠸࡚ࢶ
࣮ࣝ࡜ 7L ⣔㔠ᒓࡢ⟩ࡢ㛫ࡢቃ⏺ࡀ᫂☜࡟ほᐹࡉࢀ࡞࠿ࡗࡓࠋࡑࡢࡓࡵࠊࢭ࣑ࣛࢵࢡࢫ〇ࢶ࣮ࣝ࡜ 7L ⣔㔠ᒓࡢ⏺
㠃ࡣረᛶὶືࡋ࡚࠸ࡿྍ⬟ᛶࡀ࠶ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ ࡲࡓୖグࢶ࣮ࣝ࡟ᑐࡋࠊ6(0 ほᐹ࠾ࡼࡧ ('6 ศᯒࢆᐇ᪋ࡋࡓࠋࡑࡢ⤖ᯝࢆᅗ  ࡟♧ࡍࠋᅗ  ࠿ࡽ᫂ࡽ࠿࡞
ࡼ࠺࡟ࠊ7L ⣔㔠ᒓࡢ⤌⧊ࡢ୰࡟ 6L1 ࡜ࡳࡽࢀࡿ⢏ࡀほᐹࡉࢀࡓࠋࡑࡢࡓࡵࠊ)6: ࡟ࡼࡾ୍㒊࡟࠾࠸࡚ረᛶὶື
ࡋࠊ⢏≧࡟๭ࢀࡓࢭ࣑ࣛࢵࢡࢫ࡜⣧ࢳࢱࣥࡀᨩᢾࡉࢀ࡚᥋ྜࡋࡓ࡜⪃࠼ࡽࢀࡿࠋᅗ 㸸6(0 ほᐹ⤖ᯝᅗ 㸸('6 ศᯒ⤖ᯝ⤖ゝ
 )6: ࡟ࡼࡿࢭ࣑ࣛࢵࢡࢫ࡜ࢳࢱࣥࡢ᥋ྜᢏ⾡ࡢ◊✲࡜ࡋ࡚ࠊࡇࢀࡲ࡛ࡢ◊✲࡛ረᛶὶືࡋ࡚ᨩᢾࡋ᥋ྜࡋ࡚࠸ࡿ
ྍ⬟ᛶࡀ☜ㄆࡉࢀ࡚࠸ࡿࡀࠊᮏᖺᗘࡢࢺࣛ࢖࢔࡛ࣝ᥋ྜ࡟ࡣ⮳ࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓࠋ᮶ᖺᗘ௨㝆ࡣࠊ㐣ཤࡢ◊✲࡛᫂ࡽ࠿࡟࡞ࡗ࡚࠸ࡿࢭ࣑ࣛࢵࢡࢫ࡜ࢳࢱࣥྜ㔠ࡢ᥋ྜ࣓࢝ࢽࢬ࣒ࢆཧ⪃࡟ࠊ෌ᗘ )6: ࡢࢺࣛ࢖࢔ࣝࢆ⾜࠺ィ⏬࡛࠶ࡿࠋ
ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝 − 106 −

⢏Ꮚἲ࡜᭷㝈せ⣲ἲࢆ⏝࠸ࡓ FSW ຊᏛゎᯒᡭἲࡢᵓ⠏኱㜰ᗓ❧኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉
ᰘཎ ṇ࿴

㸯㸬⥴ゝ
㏆ᖺ㸪㠀⁐⼥࣭పධ⇕᥋ྜ࡜࠸࠺≉ᚩ࠿ࡽᦶ᧿ᨩᢾ᥋ྜ(FSW)ࡢ฼⏝ࡀᣑ኱ࡋ࡚࠾ࡾ㸪◊✲ࡀ┒ࢇ࡟⾜ࢃࢀ࡚࠸ࡿ㸬ࡇࢀ࡟క࠸㸪FSW ࡟㛵ࡍࡿ✀ࠎࡢ⌧㇟ࡢゎ᫂ࡀ⾜ࢃࢀ࡚ࡁ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ࡑࢀࡽࡢከࡃࡣᐇ㦂࡟ᇶ࡙ࡃࡶࡢ࡛࠶ࡾ㸪FSW ࡢຊᏛࢩ࣑࣮ࣗࣞࢩࣙࣥᡭἲࡣ㸪࠸ࡲࡔ࡟☜❧ࡉࢀ࡚࠸ࡿ࡜ࡣゝ࠸ࡀࡓ࠸㸬ࡇࢀࡣ FSW ࡟࠾࠸࡚㸪᥋ゐࡸረᛶὶື㸪ᨩᢾ࡜࠸ࡗ
ࡓ≀⌮⌧㇟ࡀ」㞧࡟⤡ࡳྜࡗ࡚࠸ࡿࡓࡵ㸪ࢩ࣑࣮ࣗࣞࢩࣙࣥᡭἲࡢᵓ⠏ࡀᴟࡵ࡚㞴ࡋ࠸ࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ࢩ࣑࣮ࣗࣞࢩࣙࣥᡭἲࡀ☜❧ࡉࢀࡿࡇ࡜࡛㸪⏕⏘⌧ሙ࡛ࡢタィẁ㝵ࡸ᪂ࡓ࡞ࢶ࣮ࣝ㛤Ⓨࡢヨస➼㸪ࢥࢫࢺࡢ๐ῶࡸ㸪᥋ྜ᮲௳ࡸ✀ࠎࡢ᳨ウࢆ⾜࠸ࡸࡍࡃ࡞ࡿࡓࡵ㸪ࢩ࣑࣮ࣗࣞࢩࣙࣥᡭἲࡢ☜❧ࡀᛴົ࡛࠶ࡿ࡜ゝ࠼ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪
FSW ᪋ᕤ᫬ࡢࢶ࣮ࣝࡢᙉᗘ࡟ࡘ࠸᳨࡚ウࡍࡿࡓࡵ㸪⢏Ꮚἲ࡜ FEM ࢆ㐃ᡂゎᯒࡍࡿࡇ࡜࡛ FSWࡢຊᏛࢩ࣑࣮ࣗࣞࢩࣙࣥᡭἲࢆᵓ⠏ࡋ㸪ࢶ࣮ࣝ࡟⏕ࡌࡿᛂຊ࡟ࡘ࠸࡚ࡢ᳨ウࢆ⾜ࡗࡓ㸬㸰㸬036)(0 㐃ᡂゎᯒᡭἲuᮏ◊✲࡛⏝࠸ࡓ MPS(⢏Ꮚἲ)ࡢ໙㓄㸪Ⓨᩓ㸪ࣛ
MPSparticle‫ ݑ‬ൌ ܷ ൅ ൅ ൅ࣉࣛࢩ࢔ࣥࣔࢹࣝࢆࡑࢀࡒࢀᘧ(1)-(3)࡟♧ࡍ㸬 ࡇ
Influenceregionࢀࡽࡢᘧࢆ⏝࠸࡚ᨭ㓄᪉⛬ᘧࡢ㞳ᩓ໬ࢆ⾜࠸㸪ィ
⟬ࢆ⾜࠺㸬
௫

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Influenceregion

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Least Square method㻌)LJ'DWDFRQYHUVLRQEHWZHHQ
036DQG)(0㻌ゎᯒ㛤ጞ@⢏Ꮚ䛾ึᮇ㓄⨨࢘૙ ɼ࢛૙ɼܲ ૙ᮏ◊✲࡛ࡣྛ⢏Ꮚ࡟࠾ࡅࡿᛂຊࢆồࡵࡿࡓࡵ࡟ࠊ
ࡲࡎࠊMPS ἲ࡟ࡼࡾ⟬ฟࡋࡓ㏿ᗘሙࢆ MLS ἲ࡟ࡼࡾ⥺ᙧ㏆ఝࡋ㸪㏿ᗘ໙㓄ࢆ⟬ฟࡍࡿ㸬㏿ᗘ໙㓄ࢆ᫬㛫✚ศࡋ࡚ồࡲࡿኚ఩ࡼࡾࠊࡦࡎࡳࢆồࡵࠊ኱ࡦࡎࡳᙎረᛶ≧ែࢆ௬ᐃࡋࡓᛂຊィ⟬ࢆྛ⢏Ꮚ࡟㛵ࡋ࡚⾜࠺㸬^V ` >D@^H `(4)⥆࠸࡚ࠊFig. 1 ࡟♧ࡍ஫᥮ࣔࢹࣝࡼࡾ⢏Ꮚࡢᛂຊࢆ FEM ⠇Ⅼୖ࡟⿵㛫ࡋ㸪ᚓࡽࢀࡓᛂຊࢆᘧ(5)ࡢ
ࡼ࠺࡟⾲㠃✚ศࡍࡿࡇ࡜࡛㸪⾲㠃ᛂຊࢆ⟬ฟࡍࡿ㸬
Fi ³A V ij n j dA
(5)ᮏ◊✲࡛ࡣ㸪௨ୖࡢ MPS-FEM 㐃ᡂゎᯒࢆ Fig. 2࡟♧ࡍゎᯒᡭ㡰࡛ᐇ᪋ࡋࡓ㸬ࡲࡓࠊFSW ࡢࣔࢹࣝ໬࡟࠶ࡓࡗ࡚㸪ረᛶὶືࡢྲྀࡾᢅ࠸ࡣ㔜せ࡛࠶ࡿ㸬ᮏࣔࢹ࡛ࣝࡣ㸪ẕᮦࢆ㧗⢓ᛶὶయ࡜௬ᐃࡍࡿࡇ࡜
࡛ረᛶὶືࡢᣲືࢆ⾲⌧ࡍࡿ㸬ረᛶὶືࢆ⾲⌧ࡍࡿࡓࡵ࡟㸪ື⢓ᛶಀᩘศᕸࢆồࡵࡿᚲせࡀ࠶ࡿࡀࠊ
ᅛయ㔠ᒓࡢ⢓ᗘࢆ ᐃࡍࡿࡇ࡜ࡣᅔ㞴࡛࠶ࡿࡓ− 107 −

㔜ຊ㡯䛸 ⢓ᛶ㡯䛾ィ⟬࢛࢏‫ כ‬ൌ ࢛௞ ൅ ο‫ ߘ߭ ݐ‬ଶ ࢛ ൅ ܎ ࢑⢏Ꮚ⛣ື࢘ ‫ כ‬ൌ ࢘࢑ ൅ ο‫࢛ݐ‬૙‫ ݐ‬ൌ ‫ ݐ‬൅ ο‫ݐ‬

ᗘゎᯒ
‫ܶܦ‬
݇ ଶ
ܳ
ൌ
ߘ ܶ൅
‫ܥߩ ݐܦ‬௣ߩ‫ܥ‬௣ᅽຊ䛾䝫䜰 䝋 䞁 ᪉⛬ᘧ䛾ィ⟬ߩ ݊‫ כ‬െ ݊ᇱߘ ଶ ܲ ௞ାଵ ൌ ଶ
݊଴
ο‫ݐ‬

MPS

㏿ᗘಟṇ㔞䛾ィ⟬䚸 ㏿ᗘ䛸 ⢏Ꮚ఩⨨䛾ಟṇο‫ݐ‬࢛௞ାଵ ൌ ࢛‫ כ‬൅ ࢛’࢛Ԣ ൌ െ ߘܲ ௞ାଵ࢘௞ାଵ ൌ ࢘‫ כ‬൅ ο‫’࢛ݐ‬ߩ
MLSἲ䛻䜘 䜚 ⢏Ꮚ㏿ᗘ䛛䜙 ㏿ᗘ໙㓄䜢 ⟬ฟ‫ ݑ‬ൌ ܷ௫  ൅ ୷  ൅ ୸  ൅ ଴㏿ᗘ໙㓄䛸 䜚 ኚ఩䜢 ồ䜑䚸 䜂䛪䜏䜢 ⟬ฟߝ ൌ ‫ݑ ܤ‬ᛂຊィ⟬ߪ ൌ ‫ߝ ܦ‬ς ʖ ϩන໚䛾⠇Ⅼ䛻ᛂຊ⿵㛫⾲㠃Ⲵ㔜‫ ܨ‬ൌ න ɐ୧୨ ୨ 
୅

ᛂຊմੵ
  ൌ
NO

‫ ݐ‬൐ ‫ݐ‬௘௡ௗ
YES
END

Fig. 2 Flow of coupling analysis.

FEM଴Temperature[K]

tool㻌

610
578

base metal㻌

547
515
483
452

a) N=250rpmb) N=500rpm㻌

c) N=750rpm㻌

d) N=1000rpm㻌

420
388
356

Fig. 3 Analysis model㻌

325
293

Fig. 4 Distribution of temperature at v=60mm/min

Equivalent

Equivalentstress[MPa]㻌

285
257
228
200
171
143
114
86
57
29
0

stress[MPa]a) N=250rpm㻌

305
275
244
214
183
153
122
92
61
31
0

b) N=500rpm㻌

c) N=750rpm㻌

Fig. 5 Distribution of equivalent stress at v=60mm/mina) v=100mm/min㻌 b) v=200mm/min㻌c) v=300mm/min㻌

Fig. 6 Distribution of equivalent stress at
N=1000rpmࡵ㸪ື⢓ᛶಀᩘ Ȟ ࡣᘧ(6)࡟࡚⾲ࡉࢀࡿ㛵ᩘࢆ⏝࠸࡚Ỵᐃࡍࡿ㸬
K

V H, T
,Q
3H

K
U

(6)

㸱㸬⁐ࡅ㎸ࡳᙧ≧ࡢ࢔ࢫ࣌ࢡࢺẚࡢᙳ㡪Fig. 3 ࡟⢏Ꮚἲゎᯒ࡟౑⏝ࡋࡓゎᯒࣔࢹࣝࢆ♧ࡍ㸬ࣔࢹࣝࡣ A1100 ᮦ࡜ࡋ㸪ẕᮦࡀ 18mm
36mm6mm㸪ࢶ࣮ࣝࡀࢩࣙࣝࢲ࣮㒊ࡢ┤ᚄࡀ 12mm㸪㧗ࡉࡀ 4.0mm ࡛࠶ࡾ㸪ࣉ࣮ࣟࣈୖ
㒊ࡢ┤ᚄࡀ 5mm㸪ࣉ࣮ࣟࣈୗ㒊ࡢ┤ᚄࡀ 2mm㸪㧗ࡉࡀ 4mm ࡛࠶ࡿ㸬ࢶ࣮ࣝᙉᗘ࡟ࡘ࠸᳨࡚ウࡍࡿࡓࡵ㸪ẕᮦࡣࡇࡢ኱ࡁࡉ࡜ࡋࡓ㸬Fig. 4 ࡟ࢶ࣮ࣝ⛣ື୰ࡢ ᗘศᕸࢆ♧ࡍ㸬ྠᅗ(a)-(d)ࡣࡑࢀࡒࢀᅇ㌿㏿ᗘ N=250rpm㸪500rpm㸪750rpm ࠾ࡼࡧ 1000rpm ࡢሙྜࡢ ᗘศᕸ࡛࠶ࡿ㸬ࡇࢀࡼࡾ㸪ᅇ㌿㏿ᗘࡀ኱ࡁࡃ࡞ࡿ࡜Ⓨ⇕㔞ࡀ኱ࡁࡃ࡞ࡾ㸪᭱㧗฿㐩 ᗘࡀ኱ࡁࡃ࡞
ࡿ࡜࠸࠺ഴྥࡀ☜ㄆ࡛ࡁ㸪⢏Ꮚἲ࡟ࡼࡿ FSW ゎᯒࡀྍ⬟࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋࡓ㸬௨ୖࡢ
MPS ゎᯒࡢ⤖ᯝࢆ⏝࠸࡚ඛ㏙ࡋࡓᡭ㡰࡟ᚑ࠸㸪FEM ゎᯒࢆᐇ᪋ࡋࡓ㸬Fig. 5 ࡟ࡑࢀࡒࢀࡢ
ᅇ㌿㏿ᗘ࡟࠾ࡅࡿࢶ࣮ࣝࡢ⾲㠃ᛂຊศᕸࢆ♧ࡍ㸬ྠᅗࡼࡾᅇ㌿㏿ᗘࢆ኱ࡁࡃࡋࡓሙྜࡢᛂ
ຊࡢኚ໬ࡣぢࡽࢀ࡞࠸ࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ࡲࡓ㸪ྠᵝ࡟ Fig. 6 ࡟᥋ྜ㏿ᗘࢆ v=100mm/min㸪
200mm/minࠊ300mm/min ࡜ࡋࡓሙྜࡢࢶ࣮ࣝࡢ⾲㠃ᛂຊศᕸࢆ♧ࡍ㸬ࡇࢀࡽࡢ⤖ᯝ࠿ࡽ㸪
᥋ྜ㏿ᗘࢆ኱ࡁࡃࡋࡓሙྜࡢᛂຊࡣୖ᪼ࡍࡿࡇ࡜ࢆ☜ㄆࡋࡓ㸬௨ୖࡼࡾ᥋ྜ㏿ᗘࢆ኱ࡁࡃ
ࡋࡓሙྜࡢᛂຊࡢኚ໬ࡀ㸪ᅇ㌿㏿ᗘࢆ኱ࡁࡃࡋࡓሙྜ࡟ẚ࡭࡚኱ࡁ࠸ࡇ࡜࠿ࡽ㸪ࢶ࣮ࣝ࡟స⏝ࡍࡿᛂຊ࡟ᑐࡋ࡚ࡣ㸪᥋ྜ㏿ᗘࡢᙳ㡪ࡀ኱ࡁ࠸ࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸬㸲㸬⤖ゝᮏ◊✲࡛ࡣ㸪FSW ࡢ᥋ྜ㐣⛬ࢆゎᯒྍ⬟࡞ MPS-FEM 㐃ᡂゎᯒἲࡢᵓ⠏ࢆ⾜ࡗࡓ㸬ࡇࡢᡭἲࢆ⏝࠸ࡿࡇ࡜࡛㸪ࢶ࣮ࣝᙉᗘ࡟㛵ࡍࡿ᳨ウࡀྍ⬟࡜࡞ࡗࡓ㸬ᥦ᱌ᡭἲࢆ⏝࠸࡚ᇶ♏ⓗ᳨ウࢆ⾜ࡗࡓ⤖ᯝ㸪ࢶ࣮ࣝࡢᅇ㌿㏿ᗘࡀ኱ࡁࡃ࡞ࡿ࡜Ⓨ⇕㔞ࡀ኱ࡁࡃ࡞ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿࡇ࡜
ࢆ♧ࡋࡓ㸬ࡲࡓ㸪ࢶ࣮ࣝࡢ⾲㠃ᛂຊࢆ⟬ฟࡍࡿࡇ࡜ࡀ࡛ࡁ㸪ᅇ㌿㏿ᗘࡼࡾࡶ᥋ྜ㏿ᗘࡢ࡯࠺ࡀ,ࢶ࣮ࣝࡢ⾲㠃ᛂຊ࡟ᑐࡍࡿᙳ㡪ࡀ኱ࡁ࠸ࡇ࡜ࢆ☜ㄆࡋࡓ㸬(ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝)− 108 −

෭㛫ᅽᘏ㗰ᯈ SPCC ࢆẕᮦ࡜ࡋࡓᦶ᧿ᨩᢾⅬ᥋ྜ⥅ᡭࡢ⑂ປ≉ᛶ࡟㛵ࡍࡿ㈇Ⲵᙧᘧࡢᙳ㡪ᗈᓥ኱Ꮫ኱Ꮫ㝔 ᕤᏛ◊✲⛉ ᶵᲔ≀⌮ᕤᏛᑓᨷ Ⳣ⏣ ῟䠍䠊◊✲⫼ᬒ䠈䛚䜘䜃┠ⓗ㻌㏆ᖺᦶ᧿ᨩᢾ᥋ྜ䛜ὀ┠䜢㞟䜑䛶䛔䜛䠊ྠ᥋ྜἲ䛿ᮦᩱ䛾෌⤖ᬗ ᗘ௜㏆䛷᥋ྜ䛩䜛ᅛ┦᥋ྜ䛷䛒䜛䛯䜑䠈᥋ྜ䝒䞊䝹䛻䜘䜛᧠ᢾ᫬䛾⤖ᬗ⢏䛾ᚤ⣽໬䛜ᮇᚅ䛥䜜䜛䛸䛸䜒䛻䠈ᮦᩱ䛾ረᛶኚᙧ䛜ຍ䜟䜛䛯䜑ไᚚᅽᘏ䛸ྠᵝ䛾⤌⧊ไᚚ䛜ྍ⬟䛸䛔䛳䛯≉㛗䜢ᣢ䛴䠊䜎䛯䠈ᚑ᮶㕲㗰ᮦᩱ䜈䛾㐺⏝䛸䛔䛳䛯ほⅬ䛷䛿䝒䞊䝹䛾⪏⇕ᛶ䛜ၥ㢟ど䛥䜜䠈ᐇᶵ㐺⏝䛿㍍㔠ᒓ䛻㝈䜙䜜䛶䛔䛯䜒䛾䛾䠈⌧ᅾ䛷䛿↓ኚែ䛷䛾᥋ྜ䛜ྍ⬟䛸䛺䜚䠈ẚ㍑ⓗᏳ౯䛻㕲㗰ᮦᩱྠኈ䛾ᦶ᧿ᨩᢾ᥋ྜ䛜ྍ⬟䛸䛺䛳䛶䛔䜛䠊䛧䛛䛧䛺䛜䜙㕲㗰ᮦᩱ䛾ᦶ᧿ᨩᢾ᥋ྜ⥅ᡭ䛾ሗ࿌౛䛿ᑡ䛺䛟䠈ᐇ⏝䜢᝿ᐃ䛧䛯ሙྜ䠈ಙ㢗ᛶ䞉Ᏻ඲ᛶ☜ಖ䛾ほⅬ䛛䜙㔜せ䛸䛥䜜䜛⑂ປ䛻㛵䛩䜛◊✲ሗ࿌౛䛿䜋䛸䜣䛹䛺䛔䛾䛜⌧≧䛷䛒䜚䠈ᐇᶵ㐺⏝䛻䛿⮳䛳䛶䛔䛺䛔䠊ᮏ◊✲䛷䛿䛣䜜䜎䛷䠈㕲㗰ᮦᩱ䛾༑Ꮠᘬᙇᆺᦶ᧿ᨩᢾⅬ᥋ྜ⥅ᡭ䛻㛵䛧䛶䠈⑂ປ◚ቯᶵᵓ䛾ゎ᫂䜔ᐇാⲴ㔜ୗ䛻ᑐ䛩䜛⑂ປᙉᗘホ౯䜢⾜䛳䛯䠊䛧䛛䛧ᐇ⏝䜢᝿ᐃ䛧䛯タィ䜢⾜䛖ୖ䛷䛿䠈㈇Ⲵᙧᘧ䜢⪃៖䛧䛯ホ౯䜢⾜䛖ᚲせ䛜䛒䜛䛸ྠ᫬䛻⑂ປᑑ࿨䜢ᐃ㔞ⓗ䛛䛴⤫୍ⓗ䛻ホ౯䛩䜛䛣䛸䛜ᴟ䜑䛶㔜せ䛷䛒䜛䠊䛭䛣䛷ᮏ◊✲䛷䛿䠈⮬ື㌴⏝㗰ᯈ䛸䛧䛶ᗈ䛟౑⏝䛥䜜䛶䛔䜛෭㛫ᅽᘏ㗰ᯈ SPCC 䜢ᑐ㇟䛸䛧䛯ᦶ᧿ᨩᢾⅬ᥋ྜ⥅ᡭ䛻䛚䛔䛶䠈ᘬᙇ䛫䜣᩿ᆺ䠄௨ୗ䠗TS ᆺ䠅䛚䜘䜃䛿䛟㞳ᆺ䠄௨ୗ䠗TP ᆺ䠅FSSW⥅ᡭ䜢సᡂ䛧䠈㈇Ⲵᙧᘧ䛻䛚䛡䜛⑂ປ≉ᛶ䛾ẚ㍑᳨ウ䜢⾜䛳䛯䠊㻌䠎䠊౪ヨᮦ䠈䛚䜘䜃ᐇ㦂᪉ἲ㻌㻌 ᮏ◊✲࡛౑⏝ࡋࡓ౪ヨᮦࡣ⮬ື㌴⏝㗰ᯈ SPCC ࡛࠶ࡿ㸬ྠᮦࡢ໬Ꮫ⤌ᡂ࠾ࡼࡧᶵᲔⓗᛶ㉁ࢆࡑࢀࡒࢀ Table 1㸪Table 2࡟♧ࡍ㸬ྠᮦࢆ Fig. 1 ࡟ࡑࢀࡒࢀ♧ࡍ TS ᆺ㸦ྠᅗ(a)㸧࠾ࡼࡧ TP ᆺ㸦ྠᅗ(b)㸧ࡢྛᙧ≧࡟ຍᕤᚋ㸪ࡑࡢ୰ኸ㒊ࢆ WC 〇ࢶ࣮ࣝ࡟࡚ Table 3 ࡟♧ࡍ᥋ྜ᮲௳࡛ FSSW ࢆ᪋ࡋ౪ヨᮦ࡜ࡋࡓ㸬ࡲࡓ㸪ᮏ◊✲࡛ࡣ᥋ྜయࢆᵓᡂࡍࡿ 2 ᯛࡢ㗰ᯈࢆ༊ูࡍࡿࡓࡵ㸪ࢶ࣮ࣝࡀඛ࡟᥋ゐࡍࡿ㗰ᯈࢆୖᯈ㸪ᦶ᧿ᨩᢾㄢ⛬࡟࡚ᚋ࡯࡝ࢶ࣮ࣝ࡜᥋ゐࡍࡿ㗰ᯈࢆୗᯈ࡜ࡑࢀࡒࢀ⛠ࡍࡿ㸬⑂ປヨ㦂ࡣ㸪ᓥὠ〇సᡤ〇㟁ẼἜᅽᘧࢧ࣮࣎ࣃࣝࢧࢆ⏝࠸㸪Ⲵ㔜ẚ Rp(=Pmin/Pmax)=0.01㸪࿘Ἴᩘࡣ f=5~15Hz㸪ヨ㦂యࡢ
2 ᯛࡢ㗰ᯈࡀ᏶඲࡟ศ㞳ࡋࡓ᫬Ⅼࢆ⑂ປ◚ቯࡢ⧞㏉ࡋᩘ࡜ᐃ⩏࡜ࡋࡓ㸬㻌
Loading direction

50

Mn

P

S

Fe

0.017

0.193

0.007

0.005

Bal.

1.2

C

FSSW region
50

Table 1 Chemical composition [mass%]

Table 2 Mechanical properties

150

Tensilestrength [MPa]Elongation
[%]

204

323

45

(a) TS type.
Loading direction
12.5

Applied force[kg]

Rotational
speed [rpm]

Tool holding
time [s]

3000

700

6

1.2

Hinge

Table 3 FSSW condition

FSSW region
50

0.2% proof
stress [MPa]150(b) TP type.
Fig.1 Shape and dimension of FSSW joint.

䠏䠊ヨ㦂⤖ᯝ䛚䜘䜃⪃ᐹ㻌ྛ㈇Ⲵᙧᘧࡢヨ㦂య࡟ᑐࡍࡿ⑂ປヨ㦂⤖ᯝࢆ Fig. 2 ࡟♧ࡍ㸬࡞࠾㸪ྠᅗ࡟࠾ࡅࡿ⦪㍈ࡣヨ㦂య࡟㈇Ⲵࡋࡓヨ㦂ຊ᣺ᖜPa ࢆ㸪ᶓ㍈࡟ FSSW ࡟ࡼࡾ᥋ྜࡉࢀࡓ 2 ᯛࡢヨ㦂యࡀ᏶඲࡟ศ㞳ࡋࡓ᫬Ⅼࡢ⧞㏉ࡋᩘࢆ⾲ࡋ࡚࠸ࡿ㸬ྠᅗࡼࡾྛ㈇Ⲵᙧ
ᘧࡢ⑂ປ㝈ᗘࡣ㸪TS ᆺࡀ 0.7kN㸪TP ᆺࡀ 0.075kN ࡛࠶ࡗࡓ㸬ࡋࡓࡀࡗ࡚㸪TP ᆺࡢ⑂ປ㝈ᗘࡣ TS ᆺࡢ⑂ປ㝈ᗘࡢ 11%⛬

− 109 −

ᗘ࡛࠶ࡿࡓࡵ㸪ᆶ┤ᘬᙇᆺࡢ㈇Ⲵ࡟ᑐࡋ≉࡟⑂ປ᢬ᢠࡀప࠸࡜ࡀࢃ࠿ࡿ㸬ࡲࡓ㸪᭷㝈ᑑ࿨ᇦࡢ⑂ປヨ㦂⤖ᯝ࡟╔┠ࡍࡿ
࡜ྛ㈇Ⲵᙧᘧࡢ P-N ᭤⥺ࡢഴࡁࡣ␗࡞ࡗ࡚࠾ࡾ㸪⥅ᡭ࡟స⏝ࡍࡿእⲴ㔜࡛ࡣ㈇Ⲵᙧᘧࡢᙳ㡪ࢆ⤫୍ⓗ࡟ホ౯ࡍࡿࡇ࡜ࡣ
ᅔ㞴࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ࡇࡢⅬ࡟ࡘ࠸࡚ࡣ᭷㝈せ⣲ゎᯒࢆྵࡵࡓࡉࡽ࡞ࡿ⪃ᐹࡀᚲせ࡛࠶ࡾ㸪௒ᚋࡢ᳨ウㄢ㢟࡜ࡉࢀࡿ㸬ḟ࡟ྛヨ㦂యࡢ⑂ປࡁ⿣Ⓨ⏕⟠ᡤ࡟ࡘ࠸࡚ヲ⣽࡟᳨ウࡍࡿࡓࡵ㸪Fig. 3 ࡟♧ࡍⲴ㔜᪉ྥ࡟ᑐࡍࡿ᥋ྜ㒊୰ኸ᩿㠃ࡢほᐹࢆ⾜ࡗࡓ㸬ྠᅗ(a)ࡣ㈇Ⲵヨ㦂ຊ᣺ᖜ Pa=1.9kN ࡟࠾ࡅࡿ◚᩿ᑑ࿨࡟ᑐࡋ㸪90%⛬ᗘࡢ⧞㏉ࡋᩘ࡛ヨ㦂ࢆ೵Ṇࡋࡓ TS ᆺ᥋ྜ᩿㠃㸪ྠᅗ(b)࡟㈇Ⲵヨ㦂ຊ᣺ᖜ Pa=0.1kN ࡟࠾ࡅࡿ◚᩿ᑑ࿨࡟ᑐࡋ㸪50%⛬ᗘࡢ⧞㏉ࡋᩘ࡛ヨ㦂ࢆ೵Ṇࡋࡓ TP ᆺ᥋ྜ᩿㠃ࢆࡑࢀࡒࢀ♧ࡋ࡚࠸ࡿ㸬ྛᅗࡼࡾ㸪ヨ㦂యᙧ≧࡟㛵ಀ࡞ࡃࢫࣜࢵࢺඛ➃࠿ࡽᯈཌ᪉ྥ࡬⑂ປࡁ⿣ࡀ㐍ᒎࡋ࡚࠸ࡓࡇ
࡜࠿ࡽ㸪ྠ⟠ᡤࡀ⑂ປࡁ⿣ࡢⓎ⏕㉳Ⅼ࡛࠶ࡿ࡜᥎ᐹࡉࢀࡿ㸬ࡇࡢࡇ࡜ࡣ㸪ࢫࣜࢵࢺඛ➃࡟ᛂຊ㞟୰ࡀ㉳ࡇࡿࡇ࡜࡟ࡼࡾ

Force amplitude,Pa [kN]⑂ປࡁ⿣ࡀⓎ⏕ࡍࡿ࡜⪃࠼ࡽࢀࡿࡀ㸪⑂ປࡁ⿣Ⓨ⏕㉳Ⅼࡑࡢࡶࡢࡣ㈇Ⲵᙧᘧ࡟౫Ꮡࡋ࡞࠸ࡇ࡜ࡀࢃ࠿ࡗࡓ㸬
2.0
1.8
1.6

TS typeTP type1mm

1.4

Crack observation area

1.2
1.0
0.8
0.6
0.4
0.2
0

104

200ȝm
(a) TS type.

105
106
107
Number of cycles to failure,Nf [cycles]
Fig.2 P-N curves.

200ȝm(b) TP type.

Fig.3 Crack observation results.

ࡲࡓ TS ᆺ FSSW ⥅ᡭ࡟࠾࠸࡚⑂ປࡁ⿣ࡢヲ⣽࡞㐍ᒎᶵᵓࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ㸪Fig. 4 ࡟♧ࡍࡼ࠺࡟ヨ㦂ຊ᣺ᖜ 1.9kNࡢ㧗ヨ㦂ຊ㡿ᇦ࡟࠾ࡅࡿ᥎ᐃ◚᩿ᑑ࿨ Nf ࡟ᑐࡋ㸪௵ពࡢ⧞㏉ࡋᩘ N ࡛⑂ປヨ㦂ࢆ୰᩿ࡋ㸪ෆ㒊ࡢ⑂ປᦆയᶵᵓࢆ୕ḟඖⓗ࡟ほᐹࡋࡓ㸬ࡲࡎ㸪ྠᅗ(b)࡟♧ࡍࡼ࠺࡟᥎ᐃ◚᩿ᑑ࿨ࡢ 50%ࡢ⧞㏉ࡋᩘ࡟࠾࠸࡚㸪ᯈཌ᪉ྥ࡬ୖᯈ࡟᭱኱⣙ 0.2mm㸪
ୗᯈ࡟᭱኱⣙ 0.1mm㸪ࢫࣜࢵࢺඛ➃ࡼࡾ⑂ປࡁ⿣ࡀᯈཌ᪉ྥ࡟㐍ᒎࡋࡓ㸬ࡲࡓ⧞㏉ࡋᩘࡀቑຍࡍࡿ࡟ࡘࢀ㸪ྠᅗ(c)࡟♧ࡍࡼ࠺࡟ୖୗ㗰ᯈෆ㒊ࡢ⑂ປࡁ⿣ࡀᚎࠎ࡟ᯈཌ᪉ྥ࡬㐍ᒎࡍࡿࡇ࡜ࡀࢃ࠿ࡿ㸬࡞࠾㸪ᯈཌ᪉ྥ࡬ࡢ⑂ປࡁ⿣㐍ᒎ࡟࠾࠸࡚ୖୗᯈ࡜ࡶ࡟㸪ෆ㒊ࡢ⑂ປࡁ⿣ࡣ୧ഃ࡟Ⓨ⏕ࡋ㸪ࡑࢀࡽࡀ᥋ྜ㒊࿘᪉ྥ࡬㐍ᒎࡋ࡚࠸ࡿᵝᏊࡀࢃ࠿ࡿ㸬ࡇࢀࡽࡢ㐍ᒎᵝ┦ࡣ༑Ꮠᘬᙇᆺ࡟࠾࠸࡚ࡶ☜ㄆࡉࢀ࡚࠾ࡾ㸪⑂ປࡁ⿣㐍ᒎᶵᵓ࡟࠾࠸࡚ࡶ㈇Ⲵᙧᘧ౫Ꮡᛶࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓࡀ㸪⑂
ປࡁ⿣Ⓨ⏕ᑑ࿨࡟࠾࠸࡚ࡣ㈇Ⲵヨ㦂ຊ౫Ꮡᛶࡀㄆࡵࡽࢀ࡚࠸ࡿ㸬ୖグࡢഴྥ࡟ࡘ࠸࡚ࡣ᭦࡞ࡿ᳨ウࡀᚲせ࡛࠶ࡾ㸪ヲ⣽࡟ࡘ࠸࡚ࡣ௒ᚋ᳨ウࡍࡿணᐃ࡛࠶ࡿ㸬㸦⤖ㄽࡣ┬␎㸧z
Loading
direction

y
x

2.4
1.2
z 0
-1.2
-2.4
-8

FSSW
region(a) Schematic illustration

Upper
crack

Lower
crack

-4
x

0

4

-4
8 -8
(b) N/Nf =50%

0
y

4

Upper
crack

2.4
1.2
z 0
-1.2
-2.4
-8
-4
8

Lower
crack
x

0

4

-4
8 -8
(c) N/Nf = 90%

0
y

4

8

Fig.4 Three dimensional morphologies of the fatigue crack propagation (unit:mm).

䠄ඹྠ◊✲ศ㔝䠖᥋ྜ⏺㠃ᶵᵓᏛศ㔝䠅㻌− 110 −

$$7,* ⁐᥋㒊ࡢᶵᲔⓗᛶ㉁࡟ཬࡰࡍᦶ᧿ᨩᢾࣉࣟࢭࢫࡢᙳ㡪㱟㇂኱Ꮫ኱Ꮫ㝔 ⌮ᕤᏛ◊✲⛉ᚨ⏣ 㱟ஓ ┠ⓗ0,* ࡸ $7,* ⁐᥋ࡣ㸪㧗࠸ရ㉁ࡢ⁐᥋ἲ࡛࠶ࡿࡀ㸪⁐᥋᫬࡟㓟⣲ࡀΰධࡍࡿࡇ࡜࡛㸪ᮦᩱ࡟ࡼࡗ࡚ࡣᶵᲔⓗᛶ㉁࡟ᝏᙳ㡪ࢆཬࡰࡍ࡜ࡉࢀ࡚࠸ࡿ㸬௒ᅇᑐ㇟࡜ࡋ࡚࠸ࡿ 1L 㗰ࡣ㸪⁐᥋㒊࡟㓟⣲ࡀྵ᭷ࡍࡿࡇ࡜࡛㠌ᛶࡀపୗࡍࡿ
࡜ࡉࢀ࡚࠸ࡿ඾ᆺⓗ࡞ᮦᩱ࡛࠶ࡿ㸬ࡑࡇ࡛㸪ᡃࠎࡣ㠌ᛶࢆᨵၿࡍࡿࡓࡵ࡟ᦶ᧿ᨩᢾࣉࣟࢭࢫ )ULFWLRQ6WLU3URFHVVLQJ)63 ࡟╔┠ࡋࡓ㸬)63 ࡣᦶ᧿ᨩᢾ᥋ྜ࡟࠾ࡅࡿ⤖ᬗ⢏ᚤ⣽໬ࢆ⾲㠃ฎ⌮ᢏ⾡࡟ᛂ⏝ࡋࡓࡶࡢ࡛࠶ࡾ㸪)63 ࢆ᪋ࡍࡇ࡜࡛ᮦᩱࡢᶵᲔⓗᛶ㉁ࡢྥୖࡀሗ࿌ࡉࢀ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ 1L 㗰ࢆᑐ㇟࡜ࡋ࡚㸪⁐᥋㒊࡬ࡢ㓟⣲ྵ᭷ࢆ෌⌧ࡍࡿࡓࡵ࡟㸪$U2 ࢩ࣮ࣝࢻ࢞ࢫࢆ౑⏝ࡍࡿ $$7,* ࢆ⏝࠸࡚⁐᥋ࢆ⾜ࡗࡓᚋ㸪ࡑࡢୖ࠿ࡽ )63 ࢆ᪋ࡋ㸪ᶵᲔⓗ≉ᛶࢆホ౯ࡍࡿࡇ࡜࡛ )63 ࡢᙳ㡪ࢆㄪᰝࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬 ᐇ㦂᪉ἲ౪ヨᮦᩱࡣ 1L 㗰 6/1 㸪እᙧᑍἲࡣ PP:PP/PPW ࡛࠶ࡿ㸬⁐᥋ᐇ㦂ࡣ㸪⾲  ࡟♧ࡍ᮲௳࡛ࣅ
࣮ࢻ࢜ࣥࣉ࣮ࣞࢺ⁐᥋ࢆᐇ᪋ࡋࡓ㸬ヨ㦂∦⾲㠃ࡢ㓟໬≀㝖ཤࢆ┠ⓗ࡜ࡋ࡚㸪ᖹ㠃◊๐┙࡟࡚⁐᥋㒊⾲㠃࠿ࡽ PP◊๐ࡋࡓᚋ㸪⁐᥋㒊࡟ᑐࡋ࡚⾲  ࡟♧ࡍ᮲௳࡟࡚ )63 ࢆ᪋ࡋࡓ㸬⁐᥋๓㸪⁐᥋ᚋ࠾ࡼࡧ )63 ᚋࡢヨ㦂∦ࢆษ᩿㸪◊☻㸪࡞ࡽࡧ࡟࢚ࢵࢳࣥࢢࡋࡓ㸬ヨ㦂∦ࡢ᩿㠃ほᐹ࡟ࡼࡿ࣑ࢡࣟ㸪࣐ࢡࣟ⤌⧊ホ౯ࡣ㸪ගᏛ㢧ᚤ㙾 20 ࠾ࡼࡧ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾 6(0 ࢆ⏝࠸࡚⾜࠸㸪ᶵᲔⓗᛶ㉁ࡣࣅࢵ࣮࢝ࢫ◳ᗘヨ㦂࠾ࡼࡧᚤᑠ⾪ᧁヨ㦂࡟ࡼࡗ࡚ホ౯ࡋࡓ㸬⾲  ⁐᥋᮲௳             ⾲  )63 ᮲௳ ᐇ㦂⤖ᯝཬࡧ⪃ᐹ
 $$7,* ฎ⌮㸪$$7,*㸩)63 ฎ⌮ࢆ᪋ࡋࡓヨ㦂∦ࡢᚤᑠ⾪ᧁヨ㦂࠾ࡼࡧ㸪ࣅࢵ࣮࢝ࢫ◳ᗘヨ㦂ࡢ⤖ᯝࢆ௨

ୗ࡟㏙࡭ࡿ㸬
ྛฎ⌮ᮦࡢᚤᑠ⾪ᧁヨ㦂࠿ࡽ྾཰࢚ࢿࣝࢠ࣮㸦ǻ(㸧ࢆồࡵࡓ⤖ᯝࢆᅗ  ࡟♧ࡍ㸬ࡲࡎ㸪$$7,* ࡢࡳࢆ⾜ࡗࡓሙྜ࡟ࡣ㸪ࢩ࣮ࣝࢻ࢞ࢫ୰ࡢ㓟⣲㔞ࡀ ࡢሙྜ㸦㏻ᖖࡢ 7,* ⁐᥋ࡢሙྜ㸧࡟ࡣ㸪ẕᮦ࡜ྠ⛬ᗘࡢ ǻ(ࢆ♧ࡍࡀ㸪ࡢሙྜ࡟ࡣ኱ᖜ࡟ῶᑡࡍࡿࡇ࡜ࡀศ࠿ࡾ㸪ᚑ᮶ࡢሗ࿌࡜ྠᵝ࡞⤖ᯝࡀᚓࡽࢀࡓ㸬୍᪉㸪ࡇࢀࡽࡢ⥅ᡭ࡟ )63 ࢆ᪋ࡍ࡜㸪ẕᮦཬࡧ㓟⣲ῧຍ⋡ 㸦㏻ᖖࡢ 7,* ⁐᥋㸧ࡢሙྜ࡟ࡣ㸪ǻ( ࡟኱ࡁ࡞ኚ໬ࡣㄆ
ࡵࡽࢀ࡞࠿ࡗࡓࡀ㸪㓟⣲ῧຍ⋡ ࡢ $$7,* ⁐᥋㒊࡛ࡣ㸪ǻE ࡢ್ࡣẕᮦ࡜ྠ➼࡟ࡲ࡛ᨵၿࡍࡿࡇ࡜ࡀ᫂
ࡽ࠿࡜࡞ࡗࡓ㸬 㓟⣲ῧຍ⋡ ࡢ $$7,* ⁐᥋㒊࡟࠾ࡅࡿ )63 ๓ᚋࡢࣅࢵ࣮࢝ࢫ◳ᗘヨ㦂⤖ᯝࢆᅗ  ࡟♧ࡍ㸬ᅗ  ࡼࡾ㸪)63 ฎ⌮๓ࡢ⁐᥋㒊ࡢᖹᆒ◳ᗘࡣ㸪⣙+9 ࡛࠶ࡗࡓࡢ࡟ᑐࡋ࡚㸪)63 ฎ⌮ᚋࡢ⁐᥋㒊ࡢᖹᆒ◳ᗘࡣ⣙+9࡜ୖ᪼ࡋࡓ㸬)63 ฎ⌮ᚋࡢᨩᢾ㒊ࢆ 6(0 ࡟ࡼࡗ࡚ほᐹࡋࡓ⤖ᯝ㸪ᨩᢾ㒊࡟ࡣᚤ⣽࡞࣐ࣝࢸࣥࢧ࢖ࢺ⤌⧊ࡀᙧᡂࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡾ㸪ࡇࡢ⤌⧊ࡀ◳ᗘୖ᪼࡟ᙳ㡪ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬− 111 −

Absorbed energy ǻE [J]%HIRUH)63$IWHU)63










BM

0.00%

0.30%

0.45%

0.60%

ᅗ  ⁐᥋㒊ᚤᑠ⾪ᧁヨ㦂⤖ᯝᅗ  ⁐᥋㒊࡟࠾ࡅࡿ◳ᗘヨ㦂⤖ᯝ ⤖ゝ ⁐᥋㒊࡬ࡢ㓟⣲ྵ᭷ࢆ෌⌧ࡍࡿࡓࡵ࡟㸪$U2 ࢩ࣮ࣝࢻ࢞ࢫࢆ౑⏝ࡍࡿ $$7,* ࢆ⏝࠸࡚⁐᥋ࢆ⾜ࡗࡓᚋ㸪ࡑࡢୖ࠿ࡽ )63 ࢆ᪋ࡋ㸪ᶵᲔⓗ≉ᛶࢆホ౯ࡍࡿࡇ࡜࡛ )63 ࡢᙳ㡪ࢆㄪᰝࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚◊✲ࢆ⾜ࡗࡓ㸬ࡑࡢ⤖ᯝ㸪⁐᥋᫬ࡢ㓟⣲ῧຍ࡟ࡼࡾపୗࡋࡓ 1L 㗰ࡢ㠌ᛶࢆ㸪ࡑࡢᚋ࡟ )63 ࢆ᪋ࡍࡇ࡜࡟ࡼࡗ
࡚㸪㠌ᛶࡣẕᮦ㸦%0㸧࡜ྠ➼࡟ࡲ࡛ᨵၿ࡛ࡁࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ㸬ཧ⪃ᩥ⊩ ┬␎㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 112 −

ᦶ᧿ᨩᢾ᥋ྜ࡟ࡼࡿ WC-Co ㉸◳ྜ㔠࡜Ⅳ⣲㗰ࡢ㔜ࡡ᥋ྜᆅ᪉⊂❧⾜ᨻἲே኱㜰⏘ᴗᢏ⾡◊✲ᡤ≀㉁࣭ᮦᩱ◊✲㒊㛗ᒸ ஽㸯㸬┠ⓗWC ⢏Ꮚ࡜㔠ᒓ┦࠿ࡽ࡞ࡿ㉸◳ྜ㔠ࡣ㧗◳ᗘ࡛⪏ᦶ⪖ᛶ࡟ඃࢀࡿࡓࡵ㸪ษ๐ᕤල㸪ล≀㸪㔠ᆺ➼࡟ᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿ㸬㉸◳ྜ㔠ࡣ㞴ຍᕤᮦ࡛㧗౯᱁࡞࠺࠼㸪㠌ᛶࡀప࠸ࡓࡵ㸪ຍᕤᛶ࡟ඃࢀ㸪࠿ࡘᗮ౯࡞
㗰࡜ࢁ࠺௜➼࡟ࡼࡾ᥋ྜࡉࢀ࡚౑⏝ࡉࢀࡿሙྜࡀከ࠸㸬ࡋ࠿ࡋ㸪㝆అᙉᗘࡢప࠸㖟ࢁ࠺ࡸ㖡ࢁ࠺࡛ࡣ᥋
ྜᙉᗘࡀపࡃ㸪㉸◳ྜ㔠ࡢඃࢀࡓ≉ᛶࢆ༑ศ࡟Ⓨ᥹࡛ࡁ࡞࠸࡜࠸࠺ၥ㢟ࡀ࠶ࡿ㸬ࡲࡓ㸪ࣇࣛࢵࢡࢫࡢṧ´ࡀ⭉㣗ࡢཎᅉ࡜࡞ࡿ࡞࡝ࡢၥ㢟ࢆṧࡋ࡚࠸ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪㉸◳ྜ㔠࡜Ⅳ⣲㗰ࡢ㔜ࡡ᥋ྜ࡬ࡢ
ᦶ᧿ᨩᢾ᥋ྜࡢ㐺⏝ࢆヨࡳࡓ㸬ᚓࡽࢀࡓ᥋ྜ㒊ࡢ᥋ྜᙉᗘ࡜ᙧᡂࡉࢀࡿ᥋ྜ⏺㠃࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓ㸬㸰㸬◊✲᪉ἲ
ᦶ᧿ᨩᢾ᥋ྜ࡟ࡣ㸪↝⤖ࣉࣟࢭࢫ࡟ࡼࡾస〇ࡉࢀࡓ
WC-12 mass% Co ྜ㔠ᯈᮦ࡜ S45C ᯈᮦࢆ⏝࠸ࡓ㸬ᅇ㌿᪉ྥ

S45C ᯈᮦࡢ໬Ꮫ⤌ᡂࡣ 0.44 %C, 0.23 %Si, 0.69 %Mn,
0.010 %P, 0.005 %S, ṧ㒊 Fe (mass%)࡛࠶ࡗࡓ㸬㉸◳ྜ㔠࡜ S45C ࡢᯈᮦࡢࢧ࢖ࢬࡣ 15 mm  45 mm 

⛣ື᪉ྥ
S45C

1.0 mm㸪15 mm  45 mm  2.4 mm ࡜ࡋࡓ㸬㉸◳ྜ㔠ᯈᮦࡢୖ࡟ S45C ᯈᮦࢆ㔜ࡡ㸪S45C ഃ࡟ᅇ㌿ࢶ࣮ࣝࢆᅽධࡋ࡚ᦶ᧿ᨩᢾ᥋ྜࢆ⾜ࡗࡓ㸦ᅗ 1㸧㸬ࢩࣙࣝࢲᚄ
12 mm㸪ࣉ࣮ࣟࣈඛ➃ᚄ 4.9 mm㸪ࣉ࣮ࣟࣈ㛗 2.4 mm
ࡢࢶ࣮ࣝࢆ⏝࠸ࡓ㸬ࢶ࣮ࣝᅇ㌿ᩘࡣ 800 rpm㸪 ⛣ື㏿ᗘ

WC-12Co

ᅗ 1 WC-12Co ࡜ S45C ࡢᦶ᧿ᨩᢾ᥋ྜ
ࡢᶍᘧᅗ㸬

ࡣ 50 mm/min㸪๓㐍ゅࡣ 3r࡜ࡋࡓ㸬Ⲵ㔜ࢆ 4.9 kN ࠿ࡽ 14.7 kN ࡢ⠊ᅖ࡛ኚ໬ࡉࡏ࡚᥋ྜᐇ㦂ࢆ⾜ࡗࡓ㸬ᚓࡽࢀࡓ᥋ྜ㒊࡟ࡘ࠸࡚᩿㠃⤌⧊ほᐹ㸪ඖ⣲ศᯒ㸪࡞ࡽࡧ࡟◳ࡉศᕸᐃࢆ⾜ࡗࡓ㸬ࡲࡓ㸪㉸◳ྜ㔠⓶⭷࡜ᇶᮦ࡜ࡢ⏺㠃࡟࠾ࡅࡿࡏࢇ᩿ᙉᗘࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟㸪㉸◳ྜ㔠ࢆ✺㉳㒊㸪S45C ࢆᇶᮦ࡜ࡍࡿヨ㦂∦ࢆษࡾฟࡋ㸪ࡏࢇ᩿ヨ㦂ࢆ⾜ࡗࡓ㸬ࡏࢇ᩿ヨ㦂⏝ヨ㦂∦ࡢ✺㉳㒊ࡢࢧ࢖ࢬࡣ 1 mm  1 mm
 1 mm ࡜ࡋࡓ㸬㸱㸬⤖ᯝⲴ㔜ࢆ 9.8 kN ࡜ࡋࡓሙྜ࡟㸪㉸◳ྜ㔠ᯈᮦ࡜ S45C ᯈᮦࢆ࡜ࡶ࡟◚ቯࡍࡿࡇ࡜࡞ࡃ᥋ྜࡍࡿࡇ࡜ࡀ
࡛ࡁࡓ㸬ᅗ 2 ࡟♧ࡍ᥋ྜᚋࡢࢧࣥࣉ࡛ࣝࡣ㉸◳ྜ㔠ഃ࡟ࢡࣛࢵࢡ➼ࡣㄆࡵࡽࢀ࡞࠿ࡗࡓ㸬Ⲵ㔜ࡀ 4.9 kN,
ࡲࡓࡣ 7.4 kN ࡢሙྜ࡟ࡣᅇ㌿ࢶ࣮ࣝࢆ S45C ᯈᮦ࡟ᅽධࡍࡿࡇ࡜ࡀᅔ㞴࡛᥋ྜࡍࡿࡇ࡜ࡣ࡛ࡁ࡞࠿ࡗ
ࡓ㸬Ⲵ㔜ࢆ 12.3 kN ࡲࡓࡣ 14.7 kN ࡜ࡋࡓሙྜ࡟ࡣ㸪㉸◳ྜ㔠ᯈᮦࡀ◚ᦆࡋࡓ㸬Ⲵ㔜ࢆ 9.8 kN ࡜ࡋ࡚᥋ྜࡋࡓ⥅ᡭࡢ᩿㠃ࢆᅗ 3 ࡟♧ࡍ㸬S45C ᮦࡢᨩᢾ㒊ෆ࡟ࡣࢺࣥࢿࣝ≧ࡢḞ㝗ࡀㄆࡵࡽࢀࡿࡶࡢࡢ㸪ᨩᢾ㒊ࡣ㉸◳ྜ㔠ᯈᮦ࡜ࡢ⏺㠃㏆ഐࡲ࡛ᣑࡀࡗ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬⏺㠃࡟࠾ࡅࡿ᥋ྜᖜࡣ 5.1 mm ࡛

− 113 −

ࣉ࣮ࣟࣈඛ➃ᚄࡢ 4.9 mm ࡟࡯ࡰᑐᛂࡋࡓ㸬ᅗ 4 ࡟ FSW ᚋࡢ⥅ᡭࡢࡏࢇ᩿ヨ㦂⤖ᯝࢆ♧ࡍ㸬Ⲵ㔜 9.8 kN ࡛᥋ྜࡋࡓ⥅ᡭࡢࡏࢇ᩿ヨ㦂ࡢ⤖ᯝ㸪ᖹᆒ್࡛ 598 MPa ࡜࠸࠺ࡏࢇ᩿ᙉᗘࡀᚓ
ࡽࢀࡓ㸬㖡ࢁ࠺௜ࡉࢀࡓ WC-6%Co ㉸◳ྜ㔠㸭S45C 㗰⥅ᡭࡢࡏࢇ᩿ᙉᗘ(344 MPa)࡜ẚ㍑ࡍࡿ࡜ 1)㸪FSW ࡟ࡼࡗ࡚㧗ᙉᗘࡢ⥅ᡭࡀᚓࡽࢀࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ᅗ 5 ࡟ SEM-EDX ࡟ࡼࡿ᥋ྜ⏺㠃࡟࠾ࡅࡿඖ⣲ศᯒ⤖ᯝࢆ♧ࡍ㸬㉸◳ྜ㔠ࡢ WC ⢏Ꮚࡣ S45C ෆ࡟ศᩓࡋ࡚࠾ࡽࡎ㸪FSW ࡟ࡼࡗ࡚㉸◳ྜ㔠࡜ S45Cࡣΰྜࡍࡿࡇ࡜࡞ࡃ᥋ྜࡉࢀࡓ㸬᥋ྜ⏺㠃࡟࠾ࡅࡿ໬ྜ≀┦ࡢ⏕ᡂࡶㄆࡵࡽࢀ࡞࠿ࡗࡓ㸬ᅗ 2 Ⲵ㔜 9.8 kN ࡛ᦶ᧿ᨩᢾ᥋ྜࡋ
ࡓ WC-12Co/S45C ⥅ᡭࡢእほ㸸(a) S45C ഃ, (b) WC-12Co ഃ.

ᅗ 3 Ⲵ 㔜 9.8 kN ࡛ ᦶ ᧿ ᨩ ᢾ ᥋ ྜ ࡋ ࡓ
WC-12Co/S45C ⥅ᡭࡢ᩿㠃㸬n=3

Shear strength, ı / MPa

1000
800
600
400

WC-Co㉸◳ྜ㔠/S45C(㖡䜝䛖௜)䛾䛫䜣᩿ᙉᗘ

200
0
0

5

10

15

20

Forging load, P / kN
ᅗ 4 ᦶ᧿ᨩᢾ᥋ྜࡋࡓ WC-12Co/S45C ⥅ᡭࡢࡏࢇ᩿ヨ㦂⤖ᯝ㸬

ᅗ 5 Ⲵ㔜 9.8 kN ࡛ᦶ᧿ᨩᢾ᥋ྜࡋࡓ
WC-12Co/S45C ⥅ᡭࡢ᥋ྜ⏺㠃࡟࠾ࡅࡿ SEM-EDX ศᯒ⤖ᯝ㸬㸲㸬ཧ⪃ᩥ⊩
1) ኱ᮧ༤ᙪ㸪ᕝᑼ㖔஧㸪ྜྷ⏣ ஽㸸⁐᥋Ꮫ఍ㄽᩥ㞟➨ 6 ᕳ➨ 4 ྕ(1988), 499̽504.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 114 −

⣧㖡࠾ࡼࡧ㖡ྜ㔠ࡢᦶ᧿᧠ᢾฎ⌮࡟ࡼࡿᙉ໬             㔞Ꮚ⛉Ꮫᢏ⾡◊✲㛤Ⓨᶵᵓ ᰾⼥ྜ࢚ࢿࣝࢠ࣮◊✲㛤Ⓨ㒊㛛                           ℈ཱྀ኱ࠊ㇂ᕝ༤ᗣࠊᑠἑ࿴ᕭ㸯㸬⥴ゝ 㖡࠾ࡼࡧ㖡ྜ㔠ࡣࠊITER ➼ࡢ᰾⼥ྜ⅔࡟࠾ࡅࡿࢲ࢖ࣂ࣮ࢱࡸ➨୍ቨ➼ࣉࣛࢬ࣐ᑐྥᮦࡢ
ࣄ࣮ࢺࢩࣥࢡᮦࡸ෭༷⟶ᮦ࡜ࡋ࡚ࡢ౑⏝ࡀ᝿ᐃࡉࢀ࡚࠸ࡿࡀࠊ㖡ࢆ⣧㖡ࡢࡲࡲ⏝࠸ࡿࡢࡣᙉᗘࡸ⪏ᦶ⪖ᛶ࡟ၥ㢟ࡀ࠶ࡿ஦ࡼࡾࠊ⌧᫬Ⅼ࡛ࡣẚ㍑ⓗ㧗࠸ᙉᗘࢆ᭷ࡍࡿ᫬ຠᯒฟ◳໬ᆺྜ㔠࡛࠶ࡿࢡ࣒ࣟࢪࣝࢥࢽ࣒࢘㖡㸦ITER ࢢ࣮ࣞࢻ㸧ࢆ⏝࠸ࡿ஦࡜࡞ࡗ࡚࠸ࡿࠋࢡ࣒ࣟࢪࣝ
ࢥࢽ࣒࢘㖡ྜ㔠ࡢᙉᗘ≉ᛶࡣ⤌ᡂ࠾ࡼࡧ⇕ฎ⌮ᕤ⛬࡟ᅉࡿ࡜ࡇࢁࡀ኱ࡁ࠸ࡀࠊ⁐〇᫬ࡢ⤌⧊ไᚚࡀ㞴ࡋ࠸஦ࡸ᥋ྜ࡟క࠺ධ⇕࡟ࡼࡗ࡚ࡑࡢᙉᗘ≉ᛶࡀᦆ࡞ࢃࢀࡿྍ⬟ᛶࡀ࠶ࡿ➼ࡢㄢ㢟࠶ࡿ௚ࠊ୰ᛶᏊ↷ᑕ࡟ࡼࡾࠊ↷ᑕ

ᗘࡀ 150Υ௨ୗ࡛ࡣ 0.1dpa ࡜࠸ࡗࡓప࠸↷ᑕ㔞࡛ࡶ㢧ⴭ࡞↷ᑕ◳໬࡟క࠺ຍᕤ◳໬⬟ࡢపୗ࡜୍ᵝఙࡧࡢ႙ኻࡀ᫂ࡽ࠿࡜࡞ࡗ࡚࠸ࡿࠋࡑࡇ
࡛ᮏ◊✲ࡣࠊᶵᲔຍᕤⓗ࡞⾲㠃ᨵ㉁ἲ࡛࠶ࡿᦶ᧿᧠ᢾࣉࣟࢭࢫ㸦FSP㸧࡟╔┠ࡋࠊࢡ࣒ࣟࢪ
ࣝࢥࢽ࣒࢘㖡ྜ㔠ࡢᙉ໬࡜⤌⧊ᨵ㉁ࠊࡑࢀ࡟క࠺⪏↷ᑕᛶྥୖࢆ┠ᣦࡋࡓᦶ᧿᧠ᢾࣉࣟࢭ
ࢫ㸦௨ୗ FSP ࡜␎ࡍ㸧ࡢ㐺⏝ᛶホ౯ࢆ┠ⓗ࡜ࡋࡓࠋ㸰㸬◊✲ᡂᯝ
 H27 ᖺᗘࡣ FSP ࡢ㖡ᮦᩱ࡬ࡢ㐺⏝ᛶホ౯࡜ࡋ࡚ࠊ↓㓟⣲㖡㸦OFC㸧ᯈࢆ⏝࠸࡚ FSP ࡢ㖡ᮦᩱ࡟ᑐࡍࡿ᭱㐺㐺⏝᮲௳⟇ᐃ࡜ࡑࡢຠᯝࡢ᳨ドࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝࠊᚄ 4mmࠊ㛗ࡉ
1.4mm ࡢࣆࣥࢆ᭷ࡍࡿᚄ 12mm ࡢᅇ㌿ࢶ࣮ࣝࢆ⏝࠸࡚ࠊⲴ㔜 1.5t ࡛ 200㹼300RPM ࡢᅇ㌿㏿ᗘ࡟࠾࠸࡚᭱኱ࡢ◳໬࠾ࡼࡧᚤ⣽⢏໬ࡀ㐩ᡂࡉࢀࡿ஦ࢆ☜ㄆࡋࡓࠋ᭦࡟ࠊᾮయ CO2 ྿௜ࡅ࡟ࡼࡿᙉไ෭༷࡟ࡼࡗ࡚᭦࡞ࡿᚤ⣽⢏໬ࡀ㐩ᡂ࡛ࡁࡿ஦ࡸࠊḞ㝗ࡢᙧᡂࡀᢚไฟ᮶ࡿ
஦ࡶ᫂ࡽ࠿࡜ࡋࡓࠋH28 ᖺᗘࡣࠊࡇࢀࡽࡢ᮲௳ࢆࡶ࡜࡟ FSP ࡢ㖡ྜ㔠࡬ࡢ㐺⏝ᛶホ౯ࢆ⾜ࡗࡓࠋ௒ᅇࡢホ౯࡛⏝࠸ࡓ㖡ྜ㔠ࡣ ITER ࢢ࣮ࣞࢻࡢࢡ࣒ࣟࢪࣝࢥࢽ࣒࢘㖡ྜ㔠࡛࠶ࡿࡀࠊ
ᮏᮦᩱࡣࢲ࢖ࣂ࣮ࢱ࡜࿧ࡤࢀࡿ㒊ᮦࡢ෭༷⟶࡜ࡋ࡚౑⏝ࡍࡿࡶࡢ࡛࠶ࡿࡓࡵࠊࡲࡎࡣ⟶≧ࡢᮦᩱ࡬ࡢ FSP ࡢ㐺⏝ᛶࢆ᳨ウࡍࡿࡇ࡜࡜ࡋࡓࠋ౑⏝ࡋࡓ⟶ᮦࡣእᚄ 15mm ࡛⫗ཌ 1.5mm
ࡢࡶࡢ࡛࠶ࡗࡓࠋࡑࡢⷧ⫗⟶࡟ᑐࡋ኱ࡁ࡞Ⲵ㔜ࢆᚲせ࡜ࡍࡿ FSP ࢆ᪋ࡍࡓࡵ⟶ࢆ༙ศ࡟๭
ࡗࡓ≧ែ࡛ FSP ࢆ⾜࠺ࡓࡵࡢ἞ලࢆ〇సࡋࠊࡑࡢ἞ලࢆ⏝࠸࡚⟶ᮦ⾲㠃࡟ FSP ࢆ⾜ࡗࡓࠋ
FSP ᮲௳ࡣ⣧㖡࡛ࡢ᮲௳࡜ྠࡌࡃࢶ࣮ࣝࡢᅇ㌿㏿ᗘ 200ࠊ300 ࠾ࡼࡧ 500RPM ࡛ࠊⲴ㔜 1.5tࢆ⏝࠸ࡓࠋᾮయ CO2 ᙉไ෭༷࡟ࡘ࠸࡚ࡣࠊẚ㍑ࡢࡓࡵ᭷ࡿሙྜ࡜↓࠸ሙྜࡢ୧᮲௳࡛ヨ㦂ࢆ⾜ࡗࡓࠋࡲࡓࠊࢡ࣒ࣟࢪࣝࢥࢽ࣒࢘㖡ྜ㔠ࡣ᫬ຠᯒฟᙉ໬ᆺྜ㔠࡛࠶ࡿࡇ࡜ࡼࡾࠊ᫬ຠ
ฎ⌮ࢆ⾜ࡗࡓᮦᩱ࡜ᮍ᫬ຠᮦࡢẚ㍑ࡶྠ᫬࡟⾜ࡗࡓࠋࡲࡎึࡵ࡟⣧㖡ᯈᮦ࡜ྠᵝ࡟㛗ࡉ1.4mm ࡢࣆࣥࢆ᭷ࡍࡿࢶ࣮ࣝࢆ⏝࠸࡚ヨ㦂ࢆ⾜ࡗࡓࡀࠊࣆࣥ᭷ࡾࡢࢶ࣮ࣝࡢሙྜῶ⫗࡟ࡼࡾヨ㦂ᮦࡀ๭ࢀ࡚ࡋࡲ࠺஦ࡸࠊ⟶ᮦ࡛࠶ࡿࡓࡵ࡟୰ᚰࡀࡎࢀ࡚ࡋࡲ࠺஦ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
ࡑࡇ࡛௒ᅇࡢ⟶ᮦ࡟ᑐࡍࡿヨ㦂࡛ࡣࣇࣛࢵࢺࢶ࣮ࣝࢆ⏝࠸ࡿ஦࡜ࡋࡓࠋᅗ 1 ࡣࣇࣛࢵࢺࢶ
࣮ࣝࢆ⏝࠸࡚ FSP ࢆ᪋ࡋࡓࢡ࣒ࣟࢪࣝࢥࢽ࣒࢘㖡ྜ㔠⟶ᮦࡢ෗┿࡛࠶ࡿࠋࡑࡢ⤖ᯝࠊᮍ᫬− 115 −

ຠᮦ࡛ࡣ᫬ຠᮦ࡟ẚ࡭࡚ῶ⫗ࡀ኱ࡁࡃࠊ๭ࢀࡶධࡾࡸࡍ࠸஦ࡀ☜ㄆࡉࢀࡓࠋࡇࢀࡣ᫬ຠᮦ
࡟ẚ࡭࡚ᮍ᫬ຠᮦࡀẚ㍑ⓗᙉᗘࡀప࠸஦࡟㉳ᅉࡍࡿ࡜⪃࠼ࡽࢀࡿࡀࠊ᭦࡟ᙉไ෭༷ࢆ⾜࠺஦࡟ࡼࡗ࡚ᅇ㌿ᩘࡀప࠸ሙྜḞᦆࡀ኱ࡁࡃ࡞ࡿࡇ࡜ࡶ᫂ࡽ࠿࡜࡞ࡗࡓࠋ୍᪉ࠊẚ㍑ⓗᙉᗘࡢ㧗࠸᫬ຠᮦ࡟᪊࠸࡚ࡣࠊ௒ᅇヨ⾜ࡋࡓ࡝ࡢᅇ㌿ᩘ࡟࠾࠸࡚ࡶḞᦆ↓ࡃ FSP ࢆ⾜࠺஦ࡀฟ᮶ࡓࡀࠊᅇ㌿ᩘࡀ኱ࡁࡃ࡞ࡿࠊ༶ࡕධ⇕㔞ࡀ኱ࡁࡃ࡞ࡿ࡟ᚑࡗ࡚ῶ⫗㔞ࡀ኱ࡁࡃ࡞ࡿࡇ࡜
ࡀ☜ㄆࡉࢀࡓࠋᅗ 2 ࡣ FSP ฎ⨨ࢆ᪋ࡋࡓࢡ࣒ࣟࢪࣝࢥࢽ࣒࢘㖡⟶ᮦࡢ SEM ᩿㠃⤌⧊෗┿࡛࠶ࡿࠋࡇࢀࡼࡾࠊࣇࣛࢵࢺࢶ࣮ࣝࢆ౑⏝ࡍࡿ஦࡟ࡼࡾ 150㹼200μm ࡢᨩᢾᇦࡀᑟධࡉࢀࠊ
ᨩᢾᇦ࡟࠾࠸࡚⣧㖡࡜ྠᵝ࡟ᚤ⣽⢏໬࠾ࡼࡧ◳໬ࡀ㐩ᡂࡉࢀࡿ஦ࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊᙉ
໬࡟ᐤ୚ࡍࡿ Cr-Zr ᯒฟ≀ࡀᮍᨩᢾࡢ㡿ᇦ࡜ྠᵝ࡟ศᩓࡉࢀ࡚࠸ࡿ஦ࡼࡾࠊFSP ࡟ࡼࡾᯒฟ≀ࡢศᩓ≧ែࡀ⥔ᣢࡉࢀࡓ≧ែ࡛ᚤ⣽⢏໬ࡀ㐩ᡂࡉࢀୟࡘᙉ໬ฟ᮶ࡿ஦ࡶ᫂ࡽ࠿࡜࡞ࡗ
ࡓࠋ௨ୖࡢ⤖ᯝࡼࡾࠊࢡ࣒ࣟࢪࣝࢥࢽ࣒࢘㖡ྜ㔠࡟ᑐࡋ࡚ࡶ⣧㖡࡜ྠᵝ࡟ FSP ࡟ࡼࡿຠᯝ
ࡀᮇᚅ࡛ࡁࡿࡀࠊ୍᪉࡛ⷧ⫗⟶ᮦ࡛ࡣῶ⫗➼࡟ࡼࡿᦆ⪖ࢆ⪃៖ࡋࡓ FSP ฎ⨨᪉ἲࢆ᳨ウࡍ
ࡿᚲせࡀ࠶ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ
200RPMᮍ᫬ຠᮦ
300RPM

500RPM

200RPM᫬ຠᮦ
300RPM

500RPM

CO2෭༷
᭷䜚

CO2෭༷
↓䛧

ᅗ 1 ࣇࣛࢵࢺࢶ࣮ࣝࢆ⏝࠸࡚ FSP ࢆ⾜ࡗࡓࢡ࣒ࣟࢪࣝࢥࢽ࣒࢘㖡ࡢ⟶ᮦᅗ 2 FSP ฎ⨨ࢆ᪋ࡋࡓࢡ࣒ࣟࢪࣝࢥࢽ࣒࢘㖡⟶ᮦࡢ SEM ᩿㠃⤌⧊෗┿㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 116 −

ADC12 ᅽ₽࣏࣮ࣛࢫ Al ࡢⓎἻᣲື㸫ࢫ࣮࣌ࢧἲ࡟ࡼࡾస〇ࡋࡓ࣏࣮ࣛࢫ Al ࡢ෌ⓎἻ㸫⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛ᯇୗ 㥴ே㸪༙㇂ ⚞ᙪ1㸬┠ⓗ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘㸦Al㸧ࡣෆ㒊࡟ከᩘࡢẼᏍࢆᣢࡘከᏍ㉁㔠ᒓ࡛࠶ࡿ㸬ᐇ⏝㔠ᒓ࡛࠶ࡿ࣐ࢢࢿࢩ࣒࢘㸦Mg㸧ࡼࡾࡶ᭦࡟㍍
㔞࡛࠶ࡾ㸪ᅽ⦰᫬࡟ࡣෆ㒊ࡢẼᏍࡀᚎࠎ࡟ᅽ₽ࡍࡿࡓࡵ⾪ᧁ྾཰ᛶ࡟ඃࢀࡿ㸬ࡑࡢࡓࡵ㸪⮬ື㌴ࡢ⾪ᧁ྾཰㒊ᮦ࡟㐺⏝ࡍࡿ஦࡟ࡼࡗ࡚ప⇞㈝໬࡜Ᏻ඲ᛶࡢྥୖࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪࣏࣮ࣛࢫ Al ࡣ୍ᗘ⾪ᧁ྾཰➼࡟ࡼࡾෆ㒊ࡢࢭࣝቨࡀ◚ቯࡉࢀࡿ࡜ಟ
᚟ࢆ⾜࠺ࡢࡀᅔ㞴࡛࠶ࡿ㸬ࡶࡋ㸪ᅽ₽ࡋࡓ࣏࣮ࣛࢫ Al ࡟෌ࡧ࣏࣮ࣛࢫᵓ㐀ࢆࡶࡓࡏࡿ஦ࡀ࡛ࡁࢀࡤ㸪࣏࣮ࣛࢫ Al ࡢಟ᚟ᢏ⾡࡟ᙺ❧࡚ࡿ஦ࡀ࡛ࡁࡿ࡜࡜ࡶ࡟㸪ࣜࢧ࢖ࢡࣝᛶࢆ㧗ࡵࡿ஦ࡀ࡛ࡁࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡑࡇ࡛㸪㐣ཤࡢ◊✲࡛ࡣ↝⤖ࢫ࣮࣌ࢧἲ࡟ࡼࡾⓎἻ๣࡜ࡋ࡚ TiH2 ࢆῧຍࡋࡓ⣧࣏࣮ࣛࢫ Al ࢆ㸪࣍ࢵࢺࣉࣞࢫ࡟ࡼࡗ࡚⦓ᐦ໬
ࢆ⾜࠸㸪㟁Ẽ⅔࡟ࡼࡾຍ⇕࣭ⓎἻࢆಁࡋ㸪෌࣏࣮ࣛࢫ໬ࢆヨࡳࡓ㸬ࡋ࠿ࡋ㸪ⱝᖸࡢⓎἻࡀ࠶ࡗࡓࡶࡢࡢẼᏍ⋡ࡣ 30%๓ᚋ࡜పẼᏍ⋡࡜࡞ࡗࡓ㸬ࡇࢀࡣ㸪⣧࣏࣮ࣛࢫ Al ࡀ㧗⼥Ⅼ࡛࠶ࡾ㸪ⓎἻ๣ࡢ⇕ศゎ ᗘ௨ୗ࡛ࡣ༑ศ࡟⦓ᐦ໬ࢆ⾜࠺ࡇ࡜ࡀฟ᮶ࡎ㸪ຍ⇕ⓎἻ᫬࡟Ⓨ⏕ࡋࡓ H2 ࢞ࢫࡀヨ㦂∦እ㒊࡟ᢤࡅ࡚ࡋࡲࡗࡓࡓࡵࡔ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ⓎἻ᫬ࡢ⢓ᛶࡀపࡃ࢞ࢫࡢᢤࡅࡸẼᏍྠኈࡢ⤖ྜ➼ࡀࡳࡽࢀࡓ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪⣧ Al ࡢ௦ࢃࡾ࡟ ADC12Al ྜ㔠ࢆ౑ࡗ࡚㧗ẼᏍ⋡ࡢ࣏࣮ࣛࢫ Al ࡢస〇ࢆヨࡳࡓ㸬ADC12
ࡣ⣧ Al ࡼࡾࡶప⼥Ⅼ࡛࠶ࡾ↝⤖ᛶ࡟ඃࢀ㸪ࡲࡓ㸪ADC12 ࡣᅛᾮඹᏑ≧ែࢆᣢࡘࡓࡵ㸪ⓎἻ᫬ࡢ⢓ᛶࢆୖࡆࡿࡇ࡜ࡀ࡛ࡁ㸪࢞ࢫࡢᢤࡅࡸẼᏍྠኈࡢ⤖ྜࢆᢚไࡍࡿࡇ࡜ࡀ࡛ࡁࡿ࡜⪃࠼ࡽࢀࡿ㸬

2㸬◊✲᪉ἲ
Fig.1 ࡟ᐇ㦂ᡭ㡰ࢆ♧ࡍ㸬Al ⢊ᮎ࡜ࡋ࡚ࡩࡿ࠸࡟
ࡼࡗ࡚ᩚ⢏ࡋࡓ 26 ȣm ௨ୗࡢ ADC12 ࢔ࢺ࣐࢖ࢬ⢊ᮎ㸪ࢫ࣮࣌ࢧ࡜ࡋ࡚ 300-425 ȣm ࡢ NaCl㸪ⓎἻ๣࡜ࡋ࡚ 5-10 ȣm ࡢ TiH2 ࢆ⏝࠸࡚ΰྜ⢊ᮎࢆస〇ࡋࡓ㸬ῧຍ㔞ࡣ NaCl ࢆ඲యࡢ 70 vol%㸪TiH2 ࢆ ADC12 ࡢ 2
mass%࡜ࡋࡓ㸬ᚓࡽࢀࡓΰྜ⢊ᮎࢆෆᚄ 25 mm ࡢ㔠ᆺࡢෆ㒊࡟ධࢀ㸪Ἔᅽࢪࣕࢵ࢟࡟ࡼࡾⲴ㔜 7.5 t ࢆ㈇Ⲵࡋ㸪㔠ᆺ ᗘࢆ 773 k ࡟᪼ ࣭ಖᣢࡋ↝⤖᫬㛫 3 h࡜ࡋ࡚ຍᅽ↝⤖ࢆ⾜ࡗࡓ㸦Fig.1㸦a㸧㸧㸬ᚓࡽࢀࡓ↝⤖
యࢆỈὙࡋ NaCl ࢆ㝖ཤࡍࡿࡇ࡜࡟ࡼࡾ㸪㧗ࡉ 25 mm㸪┤ᚄ 25 mm㸪ẼᏍ⋡ 70%ࡢ TiH2 ࡀῧຍࡉࢀࡓ ADC12࣏࣮ࣛࢫ Al ࢆస〇ࡋࡓ㸦Fig.1㸦b㸧-㸦c㸧㸧㸬ẼᏍᙧែࢆほᐹࡍࡿࡓࡵ㸪స〇ࡋࡓ࣏࣮ࣛࢫ Al ࢆ
X ⥺ CT ࡟ࡼࡾ㠀◚ቯほᐹࢆ⾜ࡗࡓ㸬᧜ᙳ᮲௳ࡣ㸪X ⥺⟶㟁ᅽ 113 kV㸪X ⥺⟶㟁ὶ 30 ȣA ࡜ࡋ࡚᧜ᙳࢆ⾜ࡗࡓ㸬ḟ࡟స〇ࡋࡓ࣏࣮ࣛࢫ Al ࢆ෌ࡧ㔠ᆺࡢෆ㒊࡟ධࢀ㸪࣍ࢵࢺࣉࣞࢫ࡟ࡼࡗ࡚⦓ᐦ໬ࢆ⾜࠸㸪ࣉ࣮ࣜ࢝ࢧ࡜ࡋࡓ㸦Fig.1㸦d㸧-㸦f㸧㸧㸬ࣉ࣮ࣜ࢝ࢧస〇᫬ࡢ᮲௳ࡣ㸪↝⤖ࢫ࣮࣌ࢧἲ࡟ࡼࡾ࣏࣮ࣛࢫ Al ࢆస〇ࡍࡿ㝿ࡢ᮲௳࡜ྠࡌ᮲௳࡛↝⤖ࢆ⾜ࡗࡓ㸬ᚓࡽࢀࡓࣉ࣮ࣜ࢝ࢧࢆ㸪ண
ࡵ 948 K ࡟ಖᣢࡋࡓ㟁Ẽ⅔ෆ࡛ 9 min 㛫ຍ⇕ࡋ⮬⏤ⓎἻࢆࡉࡏࡓ㸬⇕㛫ᅽ⦰࡟ࡼࡾస〇ࡋࡓࣉ࣮ࣜ࢝ࢧࡣᅽ⦰㍈᪉ྥ࡬౫Ꮡࡋࡓ
ẼᏍᙧ≧ࡢ␗᪉ᛶࡀ⌧ࢀࡿࡓࡵ㸪㟁Ẽ⅔ෆ࡟タ⨨ࡍࡿ㝿ࡣࣉ࣮ࣜ࢝ࢧࡢᅽ⦰᪉ྥࡀ㔜ຊ᪉ྥ࡜୪⾜࡜࡞ࡿࡼ࠺࡟タ⨨ࡋࡓ㸬ⓎἻࡉࡏࡓ࣏࣮ࣛࢫ Al ࡢẼᏍ⋡ࡣຍ⇕࣭ⓎἻ๓ᚋࡢᐦᗘᕪ࠿ࡽ⟬ฟࡋࡓ㸬− 117 − ᭦࡟㸪ⓎἻࡉࡏࡓ࣏࣮ࣛࢫ Al ࢆ X ⥺ CT ࡟ࡼࡾ᩿㠃ほᐹࢆ⾜࠸㸪ࡑࡢⓎἻᣲືࢆほᐹࡋࡓ㸬᧜ᙳ᮲௳ࡣ㸪ࢫ࣮࣌ࢧἲ࡟ࡼࡾస〇ࡋࡓ࣏࣮ࣛࢫ Al ࢆほᐹࡍࡿ㝿ࡢ᮲௳࡜ྠࡌࡃ㸪X ⥺⟶㟁ᅽ 113 kV㸪X ⥺⟶㟁ὶ 30 ȣA ࡜ࡋࡓ㸬3㸬ᐇ㦂⤖ᯝ
Fig.2㸪Fig.3 ࡟ࢫ࣮࣌ࢧἲ࡟ࡼࡾస〇ࡋࡓ TiH2 ࡀῧຍࡉࢀ
ࡓ࣏࣮ࣛࢫ Al ࡢ⏬ീ㸦Fig.1㸦c㸧࡟┦ᙜ㸧࡜ X ⥺ CT ࡟ࡼࡿ᩿㠃ほᐹ⤖ᯝࢆࡑࢀࡒࢀ♧ࡍ㸬ࡑࡢእほ࡜᩿㠃ほᐹ⤖ᯝ࠿ࡽỈὙ࡟ࡼࡿẼᏍࡢᔂࢀࡣ☜ㄆฟ᮶ࡎ㸪༑ศ࡟↝⤖ࡉࢀ࡚࠸ࡿ
࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪 NaCl ࡢᙧ≧ࡀ㌿෗ࡉࢀ࡚࠸ࡿࡇ࡜࠿
ࡽຍᅽ࡟ࡼࡿ NaCl ࡢᔂࢀࡣ࡞࠿ࡗࡓ࡜⪃࠼ࡽࢀࠊTiH2 ࡀῧຍࡉࢀࡓ࣏࣮ࣛࢫ Al ࢆస〇ࡍࡿࡇ࡜ࡀฟ᮶ࡓ㸬Fig.4㸦a㸧㸪㸦b㸧࡟ຍ⇕๓ࡢࣉ࣮ࣜ࢝ࢧ㸦Fig.1㸦f㸧┦ᙜ㸧࡜ຍ⇕࣭ⓎἻᚋࡢ࣏࣮ࣛࢫ Al ࢆࡑࢀࡒࢀ♧ࡍ㸬ຍ⇕๓ࡢࣉ࣮ࣜ࢝ࢧࡢᐦᗘࡣ 2.71 g/cm3 ࡜࡞ࡾ㸪⌮ㄽᐦᗘࡢ 2.72 g/cm3࡟ᑐࡋ࡚༑ศ࡟⦓ᐦ໬ࢆ⾜࠺ࡇ࡜ࡀฟ᮶ࡓ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ẼᏍ⋡ࡣ 61.3%࡜࡞ࡾ㸪⣧ Al ࡢẼᏍ⋡ 30%๓ᚋ࡟ẚ࡭㧗ẼᏍ⋡࡜࡞ࡗࡓ㸬ࡇࢀࡣ㸪ప⼥Ⅼ Al ྜ㔠࡛࠶ࡿ ADC12 ࢆ౑࠺ࡇ࡜࡟ࡼࡗ࡚ⓎἻ๣ࡢ⇕ศゎ ᗘ௨ୗࡢẚ㍑ⓗప ᗘ࡛ࡶ↝⤖ࡀ㐍ࢇࡔ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ᮏ◊✲ࡢ᪉ἲ࡛ࡣ㸪ጞࡵ↝⤖ࢫ࣮࣌ࢧἲ࡟ࡼࡾ࣏࣮ࣛࢫ Al ࢆస〇ࡍࡿ㝿㸪ቑ⢓๣ࢆῧຍࡍࡿ࡜ẼᏍࡀᔂࢀࡿࡓࡵⓎἻ᫬ࡢ⢓ᛶࢆୖࡆࡿࡇ
࡜ࡀᅔ㞴࡛࠶ࡿࡀ㸪ᅛᾮඹᏑ≧ែࢆᣢࡘ ADC12 ࢆ౑࠺ࡇ࡜࡟ࡼࡗ࡚ⓎἻ᫬ࡢ⢓ᛶࡀୖࡆࡿࡇ࡜ࡀฟ᮶㸪࣏࣮ࣛࢫ Al ࡢ㧗ẼᏍ⋡໬࡟ᐤ୚ࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬Fig.5 ࡟㸪ࣉ࣮ࣜ࢝ࢧࢆⓎἻࡉࡏࡓ࣏࣮ࣛࢫ Al ࡢ X ⥺ CT࡟ࡼࡿẼᏍほᐹ⤖ᯝ♧ࡍ㸬⏬ീࡣࡑࢀࡒࢀヨ㦂∦ࡢ㧗ࡉ 25%㸪
50%㸪75%ࡢ఩⨨࡟࠾ࡅࡿ᩿㠃⏬ീ࡛࠶ࡿ㸬⏬ീࢆぢࡿ࡜㸪ヨ㦂∦ෆ㒊࡟ẼᏍࡀ☜ㄆ࡛ࡁ༑ศ࡞ⓎἻ࡜࡞ࡗ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ㸪௒ᅇస〇ࡋࡓ࣏࣮ࣛࢫ Al ࡛ࡣ࢞ࢫࡢᢤࡅࡸẼᏍࡢ⢒኱໬㸪ẼᏍྠኈࡢ⤖ྜࡀぢࡽࢀ㸪Ⰻዲ࡞ẼᏍᙧែ࡟⮳ࡗ࡚࠸࡞࠸ࡇ
࡜ࡀศ࠿ࡿ㸬ࡑࡢࡓࡵ㸪᭦࡞ࡿ㧗ẼᏍ⋡໬࡜Ⰻዲ࡞ẼᏍᙧែࢆᚓࡿࡓࡵ㸪௒ᚋⓎἻ๣ࡢῧຍ㔞ࡸຍ⇕᮲௳ࢆぢ┤ࡍᚲせࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬

4㸬⤖ゝᮏ◊✲࡛ࡣ㸪ࢫ࣮࣌ࢧἲ࡟ࡼࡾ ADC12 ࣏࣮ࣛࢫ Al ࢆస〇ࡍࡿ㝿࡟ⓎἻ๣ࢆῧຍࡋ࡚࠾ࡁ㸪ᅽ₽ࡋࡓ࣏࣮ࣛࢫ Al ࢆ࣍ࢵࢺࣉ
ࣞࢫ࡟ࡼࡾ⦓ᐦ໬ࡋ࡚㸪㟁Ẽ⅔ෆ࡛ຍ⇕࣭ⓎἻࢆ⾜࠺ࡇ࡜࡛෌ࡧ࣏࣮ࣛࢫᵓ㐀ࢆᚓࡿ஦ࡀ࡛ࡁࡓ㸬ㅰ㎡
 ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 118 −

࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ ADC12Al ྜ㔠⢊ᮎῧຍ࡟ࡼࡿ
ᶵᲔⓗᛶ㉁ྥୖࡢ᳨ウ⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛ụ⏣⿱ᶞ㸪᳃⏣ ▱ᮁ㸪༙㇂ ⚞ᙪ1㸬┠ⓗ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘㸦Al㸧ࡣከᏍ㉁ᵓ㐀ࢆ᭷ࡍࡿ⣲ᮦ࡛࠶ࡿ㸬ࡑࡢࡓࡵ㸪⦓ᐦᮦ࡜ẚ࡭㸪㍍㔞࡞ࡔࡅ࡛࡞ࡃඃࢀࡓ⾪ᧁ྾཰ᛶ㸪᩿⇕ᛶ㸪྾㡢ᛶ࡞࡝ࢆ᭷ࡍࡿ㸬㍍㔞ᛶ࡟ࡼࡾ㸪⮬ື㌴⏝㒊ᮦ࡬㐺⏝ࡍࡿࡇ࡜࡛⇞㈝ࡢᨵၿࡀྍ⬟࡜࡞ࡿ㸬ࡲࡓ㸪⮬ື㌴㒊ᮦ࡬ࡢ㐺⏝࡟㝿ࡋ࡚Ᏻ඲ᛶࢆ☜ಖࡍࡿࡓࡵ࡟㸪ᅽ⦰≉ᛶࡢྥୖࡀᚲせ࡛࠶ࡿ㸬ࡋ࠿ࡋ㸪⣧ Al ༢యࡢ࣏࣮ࣛࢫ Al ࡛ࡣᅽ⦰≉ᛶࡢྥୖ࡟ࡣ㝈⏺ࡀ࠶ࡿ㸬ࡑࡇ࡛㸪⣧ Al ࡟㧗ᙉᗘ࡞ Al ྜ㔠࡛࠶ࡿ ADC12Al ྜ㔠⢊ᮎࢆῧຍࡍࡿࡇ࡜࡛ᅽ⦰≉ᛶࡢ᭦࡞ࡿྥୖࢆ┠ᣦࡍ㸬࣏࣮ࣛࢫ Al ࡢస〇ࡣ㸪ᦶ᧿⢊ᮎ↝⤖ἲ㸦Friction powder sintering process㸧࡟ࡼࡾ⾜ࡗࡓ㸬ᦶ᧿⢊ᮎ↝⤖ἲࡣࢫ࣮࣌ࢧ࣮ἲࡢ
୍✀࡛࠶ࡾ㸪ẼᏍᙧែࡢไᚚࡀᐜ᫆࡞ࡓࡵᅽ⦰≉ᛶࡢᏳᐃ໬࡟ࡘ࡞ࡀࡿ࡜⪃࠼ࡽࢀࡿ㸬ᮏ◊✲࡛ࡣᦶ᧿⢊ᮎ↝⤖ἲࢆ⏝࠸࡚ẼᏍ⋡ 70%ࡢ ADC12Al ྜ㔠⢊ᮎࢆῧຍࡋࡓ࣏࣮ࣛࢫ Al ࡢస〇ࢆヨࡳࡓ㸬ᚓࡽࢀࡓ࣏࣮ࣛ
ࢫ Al ࡣ X ⥺ CT ᧜ീ࡟ࡼࡾẼᏍᙧែࡢほᐹࢆ⾜ࡗࡓ㸬ࡑࡢᚋ㸪㟼ⓗᅽ⦰ヨ㦂࡟ࡼࡾ࣏࣮ࣛࢫ Al ࡢᅽ⦰≉ᛶࡢホ౯ࢆ⾜ࡗࡓ㸬ࡇࢀ࡟ࡼࡾ ADC12Al ྜ㔠⢊ᮎῧຍࡀᅽ⦰≉ᛶ࡟࡝ࡢࡼ࠺࡞ᙳ㡪ࢆཬࡰࡍ࠿᳨ウࡋࡓ㸬

2㸬◊✲᪉ἲ
Fig.1 ࡟࣏࣮ࣛࢫ Al స〇᪉ἲࡢᴫ␎ᅗࢆ♧ࡍ㸬⣧ Al ⢊ᮎ㸪
ADC12Al ྜ㔠⢊ᮎ࡜ NaCl ⢊ᮎࢆཎᮦᩱ࡜ࡋ࡚⏝࠸ࡓ㸬
ADC12Al ྜ㔠⢊ᮎࡣ⣧ Al ⢊ᮎ࡟ᑐࡋ࡚ 5 mass%㸪10 mass%㸪
15 mass%ࢆῧຍࡋࡓ㸬Fig.1 ࡟♧ࡍࡼ࠺࡟㸪NaCl య✚๭ྜ 70%࡜࡞ࡿࡼ࠺࡟⣧ Al ⢊ᮎ㸪ADC12Al ྜ㔠⢊ᮎ࡜ NaCl ⢊ᮎࢆΰࡐࡓΰྜ⢊ᮎࢆస〇ࡋࡓ㸬స〇ࡋࡓΰྜ⢊ᮎࢆ┤ᚄ 15 mm ࡢ✰ࢆ㛤ࡅࡓཌࡉ 10 mm ࡢ↓㓟⣲㖡ࡢᆺ࡟ධࢀࡓ㸬┤ᚄ 25 mm ࡢඛ➃ࡀᖹᆠ࡞㉸◳ྜ㔠ࢶ࣮ࣝ
㸦WC㸧ࢆᆶ┤᪉ྥ࡟Ⲵ㔜 4000 kgf㸪ᢲࡋ㎸ࡳ᫬㛫 120 s㸪ᅇ㌿ᩘ 700 rpm ࡛ᢲࡋ㎸ࡴࡇ࡜࡛↝⤖ࢆ⾜ࡗࡓ㸬↝⤖ᚋ㸪ᶵᲔຍᕤ࡟ࡼࡗ࡚↝⤖యࢆྲྀࡾฟࡋ㸪ỈὙ࡟ࡼࡾ NaCl ࢆ㝖ཤࡍࡿࡇ࡜࡛㸪࣏࣮ࣛࢫ Al ࡀᚓࡽࢀࡓ㸬ẚ㍑ࡢࡓ
ࡵ㸪ADC12Al ྜ㔠⢊ᮎࢆῧຍࡋ࡞࠸㸦0 mass%㸧ࡢ⣧ Al ༢యࡢ࣏࣮ࣛࢫ Al ࡶྠᵝࡢ᪉ἲ࡟ࡼࡾస〇ࡋࡓ㸬స〇ࡋࡓ࣏࣮ࣛࢫ Al ࡟ᑐࡋ࡚ X ⥺ CT ᧜ീࢆ⏝࠸࡚㸪NaCl ࡀ඲࡚㝖ཤ࡛ࡁ࡚࠸ࡿ࠿ࡢ☜ㄆ㸪࠾ࡼࡧ࣏࣮ࣛࢫ Al ࡢẼᏍᙧែࡢほᐹࢆ⾜ࡗࡓ㸬X ⥺ CT ᧜ീࡣ⟶㟁ᅽ 111 kV㸪
⟶㟁ὶ 30 ȣA ࡢ᮲௳࡛⾜ࡗࡓ㸬ࡑࡢᚋ㸪㟼ⓗᅽ⦰ヨ㦂ࢆࢡࣟࢫ࣊ࢵࢻ㏿ᗘ 1 mm/min
ࡢ᮲௳࡛⾜ࡗࡓ㸬ࡲࡓ㸪ᅽ⦰ヨ㦂᫬ࡢ࣏࣮ࣛࢫ Al ࡢᵝᏊࢆࣅࢹ࣓࡛࢜࢝ࣛ᧜ᙳࡋ㸪ࡑࡢኚᙧᣲືࢆほᐹࡋࡓ㸬㟼ⓗᅽ⦰ヨ㦂ࡢ⤖ᯝ࠿ࡽᚓࡽࢀࡓ ADC12 ῧຍ࣏࣮ࣛࢫ Al ࡢᅽ⦰≉ᛶࢆẚ㍑ࡋࡓ㸬3㸬ᐇ㦂⤖ᯝ
Fig.2 ࡢ(a)࡟⣧ Al ༢యࡢ࣏࣮ࣛࢫ Al㸪(b)࡟ ADC12 ࢆ 10 mass%ῧຍࡋࡓ࣏࣮ࣛࢫ Al ࡢእほᅗࢆ♧ࡍ㸬స〇ࡋࡓ࣏࣮ࣛࢫ Al ࡣ
NaCl ࡢ⼥ゎࡣぢࡽࢀࡎ㸪ࡲࡓ㸪ỈὙ᫬࡟࠾ࡅࡿ↝⤖୙㊊࡟ࡼࡿᔂࢀࡣぢࡽࢀ࡞࠿ࡗࡓ㸬Fig.2 ࡢ(c)࡟⣧ Al ༢యࡢ࣏࣮ࣛࢫ Al㸪(d)࡟ ADC12 ࢆ 10 mass%ῧຍࡋࡓ࣏࣮ࣛࢫ Al ࡢࡑࢀࡒࢀࡢ୰ᚰ㒊࡟࠾ࡅࡿ᩿㠃ࡢ X ⥺CT ⏬ീࢆ♧ࡍ㸬X ⥺ CT ⏬ീࡼࡾ NaCl ࡣ᏶඲࡟㝖ཤࡉࢀࡓࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸬ẼᏍᙧ≧࡟ὀ┠ࡋ࡚ࡳࡿ࡜㸪࣏࣮ࣛࢫ Al ࡢẼᏍ− 119 −

ࡣࢫ࣮࣌ࢧ࣮࡛࠶ࡿ NaCl ࡢᙧ≧ࢆ㌿෗ࡋࡓᙧ≧ࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࡀ
☜ㄆࡉࢀࡓ㸬ࡲࡓ㸪ẼᏍࡢ⢒኱໬࠾ࡼࡧẼᏍศᕸ࡟೫ᯒࡣ࡞ࡃ㸪࡯ࡰᆒ୍࡞ẼᏍᙧ≧ࡀᚓࡽࢀ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸬Fig.3 ࡟ ADC12 ῧຍ㔞 10 mass%ࡢヨ㦂∦㧗ࡉ࡟࠾ࡅࡿẼᏍ⋡ศᕸࢆ♧ࡍ㸬ẼᏍ⋡ࡣヨ㦂∦ࡢ఩⨨࡟ࡼࡽࡎ࠾࠾ࡼࡑ 70%࡜࡞ࡗ࡚࠸ࡿࡇ࡜
ࡀ☜ㄆࡉࢀࡓ㸬Fig.4 ࡟ᅽ⦰ヨ㦂᫬࡟࠾ࡅࡿ⣧ Al ༢య㸪࠾ࡼࡧ ADC12 ῧຍ㔞ࡀ 10
mass%ࡢ࣏࣮ࣛࢫ Al ࡢᅽ⦰ࡦࡎࡳ 40%᫬ࡢኚᙧࡢᵝᏊࢆ♧ࡍ㸬ᅽ⦰ヨ㦂᫬㸪࣏࣮ࣛࢫ Al ࡣ⬤ᛶⓗ࡞◚ቯᣲືࡣぢࡽࢀࡎ㸪ᘏᛶⓗ࡟◚ቯࡋ࡚
࠸ࡿᵝᏊࡀぢࡽࢀࡓ㸬Fig.5 ࡟㟼ⓗᅽ⦰ヨ㦂࡟ࡼࡗ࡚ᚓࡽࢀࡓᛂຊ㸫ࡦࡎࡳ⥺ᅗࢆ♧ࡍ㸬
ADC12Al ⢊ᮎࡢῧຍ㔞࡟㛵ࢃࡽࡎ㸪ࣉࣛࢺ࣮㡿ᇦ࡛ࡢ஘ࢀࡶ⏕ࡌࡎ㸪ᘏᛶⓗ࡞᭤⥺ࢆ♧ࡋ࡚࠸ࡿࡇ࡜࠿ࡽ༑ศ࡞↝⤖≧ែ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ADC12 ࡢῧຍ㔞ࡢቑຍ࡟కࡗ࡚㸪ᅽ⦰ᛂຊࡀྥୖࡋ࡚࠸ࡿࡇ࡜ࡀ
☜ㄆ࡛ࡁࡓ㸬ࡇࢀࡽࡢࡇ࡜࠿ࡽ࣏࣮ࣛࢫ Al ࡟ ADC12Al
ྜ㔠ࢆῧຍࡍࡿࡇ࡜࡛㸪ᶵᲔⓗᛶ㉁ࡣྥୖࡍࡿࡇ࡜ࡀศ࠿
ࡗࡓ㸬

4㸬⤖ゝ
ᦶ᧿⢊ᮎ↝⤖ἲ࡟ࡼࡾస〇ࡋࡓẼᏍ⋡ 70 %ࡢ࣏࣮ࣛࢫ
Al ࡢ㸪ADC12 Al ྜ㔠⢊ᮎῧຍ࡟ࡼࡿᶵᲔⓗ≉ᛶ࡬ࡢᙳ㡪ࢆ᳨ウࡋࡓ㸬ADC12 ࢆῧຍࡋࡓሙྜ࡛ࡶ࣏࣮ࣛࢫ Al ࡣỈὙ᫬࡟ࡼࡿᔂࢀࡀぢࡽࢀࡎ㸪༑ศ࡞↝⤖ࡀ⾜ࢃࢀ࡚࠸ࡓ㸬X ⥺ CT ᧜ീ࡟ࡼࡿẼᏍほᐹ࡛ࡣ㸪ẼᏍࡣ NaCl ࡢᙧ≧ࢆ㌿෗ࡋࡓᙧࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡇࡢࡇ࡜࠿ࡽ
ẼᏍ⋡㸪ẼᏍᙧែࡢไᚚࡀྍ⬟࡛࠶ࡾ㸪ᦶ᧿⢊ᮎ↝⤖ἲࡢ≉ᚩࢆ‶ࡓࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ᛂຊ㸫ࡦࡎࡳ⥺ᅗࡶ ADC12Al ྜ㔠⢊ᮎࡢῧຍ㔞ࡢቑຍ࡟క࠸㸪ࣉࣛࢺ࣮ᛂຊࡢୖ᪼ࡀぢࡽࢀ㸪࠿ࡘᘏᛶⓗ࡞᭤⥺ࢆ♧ࡋࡓ㸬௨ୖࡢ
ࡇ࡜࠿ࡽADC12 ῧຍ࣏࣮ࣛࢫAl ࡢᶵᲔⓗᛶ㉁ࡣྥୖࡋࡓ
࡜⪃࠼ࡽࢀࡿ㸬ㅰ㎡
 ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 120 −

⿵ຓຍ⇕ᶵᵓࢆഛ࠼ࡓࢶ࣮ࣝࢆ⏝࠸ࡓ 2024 ࢔࣑ࣝࢽ࣒࢘ྜ㔠ⷧᯈࡢᦶ᧿ᨩᢾ᥋ྜ
᪥ᮏ኱Ꮫ⏕⏘ᕤᏛ㒊๓ ⏣  ᑗ ඞ㸯㸬⥴ゝ ᦶ᧿⇕௨እࡢ⇕※ࢆ⏝࠸ࡓᦶ᧿ᨩᢾ᥋ྜ࡛࠶ࡿ⿵ຓຍ⇕ FSW ࡣ㸪ຍ⇕ᑐ㇟ࡢ㐪࠸࠿ࡽ኱ࡁࡃ 2 ࡘ࡟ศ㢮࡛ࡁ
ࡿࠋ1 ࡘࡣᮦᩱຍ⇕ᆺ⿵ຓຍ⇕ FSW㸦Work-heating FSW㸪WH-FSW㸧㸪ࡶ࠺ 1 ࡘࡣࢶ࣮ࣝຍ⇕ᆺ⿵ຓຍ⇕ FSW
㸦Tool-heating FSW㸪TH-FSW㸧࡛࠶ࡿࠋ ᡃࠎࡣඛ࡟ TH-FSW ࡟ࡼࡗ࡚ 1050 ࢔࣑ࣝࢽ࣒࢘ࢆ 60 rpm ࡢపᦶ᧿Ⓨ⇕࡛᥋ྜࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࡇ࡜ࢆሗ
࿌ࡋࡓ[1]ࠋ୍᪉㸪ᮏ◊✲᳨࡛ウࡍࡿ 2024 ࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡣ⇕ฎ⌮ᆺ࢔࣑ࣝࢽ࣒࢘ྜ㔠࡛࠶ࡿࡓࡵ㸪⥅ᡭᙉᗘࢆᚓࡿࡓࡵ࡟ࡣ᥋ྜ㒊ࢆ⁐య໬ฎ⌮ ᗘ௨ୖ࡟᪼ ࡉࡏ㸪᫬ຠ◳໬࡟ࡼࡗ࡚ᙉᗘࢆᚓࡿࡇ࡜ࡀᚲせ࡜࡞ࡿࠋࡇࢀࡣ
㠀⇕ฎ⌮ᆺ࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢຍᕤ◳໬ᮦࢆ᥋ྜࡍࡿሙྜ࡜ࡣṇ཯ᑐࡢせồ࡛࠶ࡿࠋࡑࡇ࡛ࢶ࣮ࣝຍ⇕࡟ࡼࡾධ⇕ࢆ⿵ຓࡍࡿࡇ࡜࡛ࡑࢀࢆ㐩ᡂࡍࡿࡇ࡜ࡀ࡛ࡁࢀࡤ㸪⥅ᡭࡢ㧗ᙉᗘ໬࠾ࡼࡧ᥋ྜ᮲௳⠊ᅖࡢᣑ኱ࡀᮇᚅࡉࢀࡿࠋ ᮏ◊✲࡛ࡣ㸪ࢶ࣮ࣝෆ㒊࡟ࣄ࣮ࢱ࣮ࢆタࡅ࡚ࢶ࣮ࣝࢆ⿵ຓຍ⇕ࡋ࡞ࡀࡽ 2024 ࢔࣑ࣝࢽ࣒࢘ྜ㔠ࢆ✺ྜࡏᦶ᧿ᨩ
ᢾ᥋ྜࡋ㸪ᚓࡽࢀࡓ⥅ᡭࡢእほ㸪⤌⧊࠾ࡼࡧᶵᲔⓗᛶ㉁࡟ࡘ࠸࡚㸪ࢶ࣮ࣝࡢຍ⇕ࢆ⾜ࢃ࡞࠸㏻ᖖ FSW㸦Ordinary
FSW㸪O-FSW㸧ࢆ⾜ࡗࡓ⥅ᡭ࡜ẚ㍑㸪᳨ウࡋࡓࠋ㸰㸬ᐇ㦂᪉ἲ ౪ヨᮦ࡟ࡣᯈཌ 1 mm ࡢ 2024-T3 ࢔࣑ࣝࢽ࣒࢘ྜ㔠ⷧᯈ㸦㛗ࡉ 100 mm㸪ᖜ 50 mm㸪ᘬᙇᙉࡉ 433 MPa㸪ఙࡧ
14.4 %㸪135 HV0.1㸧ࢆ౑⏝ࡋࡓࠋ᥋ྜ࡟ࡣ඲⮬ືᦶ᧿ᨩᢾ᥋ྜᶵࢆ౑⏝ࡋ㸪ணഛᐇ㦂࡟ࡼࡾ㑅ᐃࡋࡓ Table 1 ࡟♧ࡍ᮲௳ࢆ⤌ྜࡏ㸪࣮ࣝࢺ㛫㝽࡞ࡋࡢ I ᆺ✺ྜࡏ᥋ྜ࡜ࡋࡓࠋTH-FSW ᫬ࡢ᥋ྜ๓ࡢࢶ࣮ࣝタᐃ ᗘࡣ 673 K ࡜ࡋ㸪O-FSW ᫬ࡣ 298 K ࡜ࡋࡓࠋࢶ࣮ࣝࡣ SKD61 ࢆࢩࣙࣝࢲ࣮ᚄ 9 mm㸪ࢩࣙࣝࢲ࣮ゅ 4°㸪ࣉ࣮ࣟࣈᚄ࠾ࡼࡧ㛗ࡉࢆࡑࢀࡒࢀ 3 mm㸪0.7 mm ࡟ᶵᲔຍᕤࡋࡓࡶࡢࢆ⏝࠸ࡓࠋ ຍ⇕᪉ἲࡢᴫ␎ࢆ Fig. 1 ࡟♧ࡍࠋ⤯⦕☀Ꮚࢆ௓ࡋ࡚ࢽࢡ࣒ࣟ⥺ࣄ࣮ࢱ࣮ࢆࢶ࣮ࣝෆ࡟⿦╔ࡋ㸪ࢫࣜࢵࣉࣜࣥࢢࢆ
⏝࠸࡚ࣄ࣮ࢱ࣮࢚࣓ࣞࣥࢺ࡟㟁ຊࢆ౪⤥ࡍࡿࡇ࡜࡛ຍ⇕ࢆ⾜ࡗࡓࠋ ᚓࡽࢀࡓ⥅ᡭࡢホ౯ࡣ㸪 ᗘ ᐃ㸪እほほᐹ㸪⤌⧊ほᐹ㸪◳ࡉヨ㦂㸪ᘬᙇヨ㦂࡟ࡼࡾ㸪࠸ࡎࢀࡶᐊ ࡛⾜ࡗࡓࠋᘬᙇ
ヨ㦂ࡣ᥋ྜ㒊ࢆヨ㦂∦ᖹ⾜㒊୰ኸ࡜ࡋ㸪᥋ྜ᪉ྥ࡟ᆶ┤࡟JIS13B ྕヨ㦂∦ࢆ᥇ྲྀࡋ࡚ヨ㦂࡟౪ࡋࡓࠋ

Table 1 Friction stir welding conditions.
Parameter, Nomenclature / Unit

Value / Range

Rotational speed,

600 – 1200

Welding speed,
Tilt angle,

N / rpm–1

V / mm s

1
3

/ deg
–

Probe plunge speed, Vp / mm s1㸱㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ
1200 rpm, 1 mm/s ࡢ᥋ྜ᮲௳࡛స〇ࡋࡓ᥋ྜ㒊ࡢእほࢆFig. 2 ࡟♧ࡍࠋTH-FSW ⥅ᡭ࡛ࡣ㸪O-FSW ⥅ᡭ࡜ẚ㍑ࡋ࡚

0.3

Preheating time,

t0 / s1.3

Tool temperature,

TT / K673 / 298᥋ྜ㒊⾲㠃ࡢࡤࡾࡀቑ኱ࡋࡓࠋࡇࢀࡣධ⇕㔞ࡢቑຍ࡟ࡼࡗ
࡚㌾໬ᇦࡀࢩࣙࣝࢲ࣮࡛ᢲࡉ࠼ࡿ⠊ᅖࡼࡾࡶ኱ࡁࡃᗈࡀࡗ
ࡓࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋ ࡇࢀࡽࡢ⥅ᡭࡢᨩᢾ㒊㸦SZ㸧ᯈཌ୰ኸ㒊ࡢᚤどⓗ⤌⧊ࢆFig.3 ࡟♧ࡍࠋTH-FSW ⥅ᡭ࡜ O-FSW ⥅ᡭࡢ୧᪉࡜ࡶ SZ⤌⧊ࡣᚤ⣽࡞➼㍈⢏⤌⧊࡜࡞ࡗ࡚࠸ࡿࠋࢳ࣐࣮ࣥἲ࡟ࡼࡾ
ᐃࡋࡓᖹᆒ⤖ᬗ⢏ᚄࡣ TH-FSW ⥅ᡭ࡛ࡣ 5.2 μm㸪
O-FSW⥅ᡭ࡛ࡣwP࡜࡞ࡾ㸪ࢶ࣮ࣝ⿵ຓຍ⇕ࢆ⾜࠺ࡇ࡜࡟ࡼࡾ

− 121 −

Fig. 1

Schematic illustration of the tool-tip of theheater-embedded FSW tool.

Fig. 2 Bead appearances of the joints welded at 1200
rpm, 1 mm/s. (a) TH- FSW, (b) O- FSW.

Fig. 4Comparison of hardness distributions of thejoints after 4-days-aging after welding at 1200 rpm,
Fig. 3 SZ microstructures of the joints welded at 1200
rpm, 1mm/s. (a) TH-FSW, (b) O-FSW.
⤖ᬗ⢏ࡣࢃࡎ࠿࡟኱ࡁࡃ࡞ࡗࡓࠋࡇࢀࡶධ⇕㔞ࡢቑຍ࡟㉳ᅉࡋ࡚෭༷㏿ᗘࡀపୗࡋࡓࡇ࡜࡟ࡼࡗ࡚⤖ᬗ⢏ࡀᡂ㛗࡛ࡁࡿ᫬㛫ࡀࢃࡎ࠿࡟⏕ࡌࡓࠋ⇕ฎ⌮ᆺ࢔࣑ࣝࢽ࣒࢘ྜ㔠࡟࡛ࡣ㐣ᗘࡢᚤ⣽໬ࡣ᫬ຠᯒฟ㐣⛬࡛ࡢ↓ᯒฟᖏࡢయ✚⋡ቑ኱ࢆᣍࡃࡓࡵ㸪ࡇࡢ⤖ᬗ⢏ᡂ㛗ࡣዲࡲࡋ࠸࡜ゝ࠼ࡿࠋ
ࠉ1200rpm, 1 mm/sࡢ᥋ྜ᮲௳࡛స〇ࡋࡓ⥅ᡭᶓ᩿㠃ᯈཌ୰ኸࡢ᥋ྜᚋ᪥㛫⤒㐣ᚋࡢ◳ࡉศᕸࢆ)LJ࡟♧ࡍࠋTHFSW⥅ᡭ࡛ࡣ2)6:⥅ᡭ࡜ẚ㍑ࡋ࡚㸪᥋ྜ⏺㠃࠿ࡽ㌾໬
ᇦࡲ࡛ࡢ㊥㞳ࡀࢃࡎ࠿࡟㛗ࡃ࡞ࡾ㸪㌾໬๭ྜࡣῶᑡࡋࡓࠋ
ࠉFig.5࡟⥅ᡭࡢᘬᙇヨ㦂⤖ᯝࢆ♧ࡍࠋヨ㦂∦ࡣᯈཌ᪉ྥࡢ
ຍᕤࢆ⾜ࢃࡎ࡟ヨ㦂࡟౪ࡋ㸪ணࡵ ᐃࡋࡓ᥋ྜ㒊ྛ㒊ࡢᯈཌ࠿ࡽ◚᩿఩⨨࡟᭱ࡶ㏆࠸㒊ศࡢ᩿㠃✚ࢆồࡵ࡚ᘬᙇᙉ

Fig. 5 Changes in the tensile strength and elongation by
the tool rotational speed.

ࡉࢆ⟬ฟࡋࡓࠋᅇ㌿ᩘࡢୖ᪼࡟క࠸ᘬᙇᙉࡉࡣྥୖࡋࡓࠋࡲࡓ㸪TH-FSW⥅ᡭࡣO-FSW⥅ᡭ࡜ẚ㍑ࡋ࡚ᘬᙇᙉࡉ
ࡀྥୖࡋࡓࠋࡇࡢࡇ࡜ࡣ㸪◳ࡉศᕸ࡛ࡶࡳࡽࢀࡓࡼ࠺࡟㌾໬ᇦ࡛ࡢ㌾໬๭ྜࡀῶᑡࡋࡓࡓࡵ࡛࠶ࡿࠋᘬᙇᙉࡉࡢ᭱
኱್ࡣTH-FSW⥅ᡭࡢ1200 rpmࡢ᮲௳࡛439 MPaࢆ♧ࡋ㸪ẕᮦ࡜ྠ➼ࡢ್ࡀᚓࡽࢀࡓࠋ
㸲㸬⤖ゝࠉ⿵ຓຍ⇕ࢆ⏝࠸ࡿࡇ࡜࡛㸪඲᮲௳࡛᥋ྜ୰ࡢO-FSWࡢሙྜࡼࡾࡶ᥋ྜ㒊ࡢ฿㐩 ᗘࡀ㧗࠸ࠋࡇࢀ࡟ࡼࡾ㸪◳ࡉ࠾ࡼࡧᘬᙇᙉࡉࡀྥୖࡍࡿࠋཧ⪃ᩥ⊩[1] ᑎ஭ඞ㸪๓⏣ᑗඞ㸪ຍ⸨ᩘⰋࠕ⿵ຓຍ⇕ࡋࡓࢶ࣮ࣝ࡟ࡼࡿ࢔࣑ࣝࢽ࣒࢘ⷧᯈࡢᦶ᧿ᨩᢾ᥋ྜࠖ
㸪㍍㔠ᒓ㸪
66-9 (2016), 483-488.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 122 −

− 123 −− 124 −Ni-C 㗰ࢆ⏝࠸ࡓᦶ᧿ᨩᢾ᥋ྜ࡟ࡼࡿ࣮࢜ࢫࢸࢼ࢖ࢺᏳᐃ໬࡜
⥅ᡭࡢᶵᲔⓗ≉ᛶ࡬ࡢᙳ㡪ࡢㄪᰝ⚟஭኱ᏛᏛ⾡◊✲㝔 ‫୕ۑ‬ᾆ ᣅஓ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ  ⸨஭ ⱥಇ1㸬⥴ゝ ᦶ᧿ᨩᢾ᥋ྜ୰ࡢ࣮࢜ࢫࢸࢼ࢖ࢺ࡬ࡢረᛶࡦࡎࡳࡢᑟධ࡟ࡼࡗ࡚ᨩᢾ㒊ࡢṧ␃࣮࢜ࢫࢸ
ࢼ࢖ࢺ㔞ࡀቑຍࡍࡿ࡜࡜ࡶ࡟㸪ඃࢀࡓᙉᗘ㸫ఙࡧࣂࣛࣥࢫࢆ♧ࡍࡼ࠺࡟࡞ࡿࡇ࡜ࡀ᫂ࡽ࠿
࡜࡞ࡗ࡚࠸ࡿ 1)㸬ࡋ࠿ࡋ㸪ṧ␃࣮࢜ࢫࢸࢼ࢖ࢺࡀከࡃ࡚ࡶᩘ%ࡢ୍⯡ⓗ࡞ᵓ㐀⏝㗰ᮦ࡛ࡣ㸪࣮࢜ࢫࢸࢼ࢖ࢺࡀᏳᐃ໬ࡋ࡚࠸ࡿᵝᏊࡸᘬᙇヨ㦂᫬ࡢຍᕤㄏ㉳ኚែ࡟ࡼࡿ TRIP ຠᯝࢆ᫂☜໬ࡍࡿࡢࡣᅔ㞴࡛࠶ࡿ㸬ࡑࡇ࡛㸪Ni ࡜ C ࡢῧຍ࡟ࡼࡗ࡚࣮࢜ࢫࢸࢼ࢖ࢺࡢᏳᐃᛶࡢㄪᩚ
࡜┦ኚែᣲືࡢ༢⣧໬ࢆᅗࡗࡓ Ni-C 㗰ࢆࣔࢹࣝᮦᩱ࡜ࡋ࡚⏝࠸㸪FSW ୰ࡢ࣮࢜ࢫࢸࢼ࢖
ࢺᏳᐃ໬ࡢᵝᏊࡸᘬᙇヨ㦂᫬ࡢຍᕤㄏ㉳ኚែᣲືࡢㄪᰝࢆ⾜ࡗࡓ㸬2㸬ᐇ㦂᪉ἲ
┿✵⁐ゎ࠾ࡼࡧ⇕㛫ᅽᘏ࡟ࡼࡾస〇ࡋࡓ )H1L& ࡢ PP ཌࡢᯈᮦ࡟ᑐࡋ࡚
VWLULQSODWH ࡛ )6: ࢆ⾜ࡗࡓ㸬ࢩࣙࣝࢲ࣮ᚄ PP㸪ࣉ࣮ࣟࣈᚄ PP㸪ࣉ࣮ࣟࣈ㛗 PP
ࡢᙧ≧ࢆ᭷ࡍࡿࢶ࣮ࣝࢆ⏝࠸㸪᥋ྜ㏿ᗘࢆ  PPPLQ㸪ࢶ࣮ࣝᅇ㌿㏿ᗘࢆ  USP ࡜ࡍࡿ᥋ྜ᮲௳࡛ )6: ࢆᐇ᪋ࡋࡓ㸬ྛヨᩱࡢ᥋ྜ᪉ྥ࡜ᆶ┤࡞᩿㠃ෆ࡟࠾࠸࡚㸪6(0(%6'࡟ࡼࡿゎᯒࢆ⾜ࡗࡓ㸬ࡉࡽ࡟ࢤ࣮ࢪ㛗ࡉ  ੈ㸪ᖜ  ੈࡢᨩᢾ㒊ࡢࡳࢆྵࡴᘬᙇヨ㦂∦ࢆస〇ࡋ㸪ᘬᙇヨ㦂ࢆ⾜ࡗࡓ㸬᩿㠃ᙧ≧ࡢᙳ㡪ࢆ᤼㝖ࡍࡿࡓࡵ㸪ヨ㦂∦ࡣཌࡉ PP ࡲ࡛◊๐ࡋ࡚࠸ࡿ㸬
㸬ᐇ㦂⤖ᯝ
Fig. 1 ࡟ FSW ᚋࡢ᥋ྜ㒊᩿㠃ࡢගᏛ㢧ᚤ㙾෗┿࠾ࡼࡧ SEM/EBSD ࡟ࡼࡾྲྀᚓࡋࡓẕᮦ࡜ᨩᢾ㒊ࡢ┦ศᕸ࣐ࢵࣉࢆ♧ࡍ㸬࣐ࣝࢸࣥࢧ࢖ࢺࢆ♧ࡍ BCC ┦࡜⃰⅊Ⰽ㸪࣮࢜ࢫࢸࢼ࢖ࢺࢆ
♧ࡍ FCC ┦ࢆⷧ⅊Ⰽ㸪᪉఩ᕪ 15 ᗘ௨ୖࡢ㧗ゅᗘቃ⏺ࢆ㯮⥺࡛♧ࡋ࡚࠸ࡿ㸬ࡇࡢᮦᩱ࡛ࡣ㸪ẕᮦ࡟࠾࠸࡚ࡶ 30%⛬ᗘࡢṧ␃࣮࢜ࢫࢸࢼ࢖ࢺࡀぢࡽࢀࡿࡀ㸪ᨩᢾ㒊࡛ࡣṧ␃࣮࢜ࢫࢸࢼ
࢖ࢺࡣ 70㸣⛬ᗘ࡜኱ࡁࡃቑຍࡋ࡚࠾ࡾ࣮࢜ࢫࢸࢼ࢖ࢺࡢᏳᐃ໬ࡀ㢧ⴭ࡟☜ㄆࡉࢀࡿ㸬ࡉࡽ࡟࣮࢜ࢫࢸࢼ࢖ࢺࡢ⤌⧊࡟╔┠ࡍࡿ࡜࣮࢜ࢫࢸࢼ࢖ࢺ⢏ᚄࡀᩘȣm ⛬ᗘࡲ࡛ᚤ⣽໬ࡋ࡚࠸ࡿ㸬࣮࢜ࢫࢸࢼ࢖ࢺࡢᚤ⣽໬࡟ࡼࡾ㸪࣐ࣝࢸࣥࢧ࢖ࢺኚែ࡟క࠺ࡏࢇ᩿ኚᙧࡸయ✚⭾ᙇࡀᅔ㞴࡜࡞ࡿ⤖ᯝ㸪࣐ࣝࢸࣥࢧ࢖࡜ኚែࡀᢚไࡉࢀ㸪࣮࢜ࢫࢸࢼ࢖ࢺࡀᏳᐃ໬ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬
Fig. 2 ࡟ẕᮦ࠾ࡼࡧᨩᢾ㒊ࡢᘬᙇヨ㦂࡛ᚓࡓᛂຊࡦࡎࡳ᭤⥺࡜㸪ᘬᙇヨ㦂ᚋࡢᨩᢾ㒊ࡢヨ㦂∦࠿ࡽᚓࡓ┦ศᕸ࣐ࢵࣉࢆ♧ࡍ㸬ᨩᢾ㒊࡛ࡣ㸪ẕᮦ࡜ẚ㍑ࡋ࡚㸪ᙉᗘ㸪ఙࡧࡀ኱ࡁࡃྥ
ୖࡋ࡚࠸ࡿ㸬ࡉࡽ࡟ᨩᢾ㒊࡛ࡣ㸪㝆అᚋ㸪ຍᕤ◳໬⋡ࡀ୍᪦పୗࡋ࡚࠿ࡽ෌ୖ᪼ࡍࡿࡇ࡜
࡛㸪ຊࡦࡎࡳ᭤⥺ࡀୗ࡟ฝ࡜࡞ࡿ≉ᚩⓗ࡞ຍᕤ◳໬ᣲືࢆ♧ࡋ࡚࠸ࡿ㸬ࡇࢀࡣຍᕤㄏ㉳ኚ− 125 −

ែ࡟క࠺ TRIP ⌧㇟ࡀ⏕ࡌࡿ࡜ࡁ࡟ぢࡽࢀࡿ≉ᚩ࡜୍⮴ࡋ࡚࠸ࡿ 5,㸬ࡲࡓ㸪ᘬᙇヨ㦂ᚋࡢ┦ศᕸ࣐ࢵࣉࡼࡾ㸪ᘬᙇヨ㦂๓ࡣ 70%⛬ᗘ࠶ࡗࡓṧ␃࣮࢜ࢫࢸࢼ࢖ࢺࡀ࡯࡜ࢇ࡝ࡍ࡭࡚࣐ࣝ
ࢸࣥࢧ࢖࡜࡬࡜ኚ໬ࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ᘬᙇヨ㦂ࢆ㏵୰࡛୰᩿ࡋ࡚ྠᵝࡢ┦ศᕸ࣐ࢵࣉࢆྲྀᚓࡍࡿ࡜㸪ረᛶࡦࡎࡳࡢቑຍ࡟క࠸࣐ࣝࢸࣥࢧ࢖ࢺ㔞ࡀቑຍࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿
࡜࡞ࡗࡓ㸬ࡉࡽ࡟࣐ࣝࢸࣥࢧ࢖ࢺ㔞ࡢቑຍ㏿ᗘࡣຍᕤ◳໬⋡࡜ࡼࡃᑐᛂࡋ࡚࠾ࡾ㸪FSW ࡟ࡼࡾᏳᐃ໬ࡋࡓṧ␃࣮࢜ࢫࢸࢼ࢖ࢺࡀ TRIP ⌧㇟ࢆⓎ⌧ࡋ㸪ຍᕤ◳໬⋡ࢆቑຍࡉࡏࡿࡇ࡜࡛
ᨩᢾ㒊ࡢᙉᗘ̿ఙࡧࡢྥୖ࡟ᐤ୚ࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬

)LJ


1L& 㗰ࡢ᩿㠃ࡢගᏛ㢧ᚤ㙾෗┿࡜ẕᮦ࠾ࡼࡧᨩᢾ㒊ࡢ┦ศᕸ࣐ࢵࣉ

)LJ

ẕᮦ࠾ࡼࡧᨩᢾ㒊ࡢᛂຊࡦࡎࡳ᭤⥺࠾ࡼࡧᘬᙇヨ㦂ᚋࡢᨩᢾ㒊ࡢ┦ศᕸ࣐ࢵࣉ


ཧ⪃ᩥ⊩

   70LXUDHWDO0DWHU'HV     2*UDVVHOHWDO,QW-3ODVW   㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 126 −

ᦶ᧿ᨩᢾ᥋ྜ䛻䜘䜚ᚓ䜙䜜䜛୰Ⅳ⣲㗰⥅ᡭ䛾ᶵᲔⓗ≉ᛶ䛻㛵䛩䜛◊✲㻌⛅⏣኱Ꮫ኱Ꮫ㝔㻌 ⌮ᕤᏛ◊✲⛉㻌ᐑ㔝Ὀᚁ䠈⚄㇂ಟ䠈∾㔝⁞ᖹ㻌

㻝㻚

ㅖゝ㻌
㏆ᖺࠊඖ⣲ᡓ␎࡜⇞㈝ྥୖ࡟ࡼࡿ⎔ቃ㈇Ⲵపῶࡢᐇ⌧ࢆ┠ⓗ࡟ࠊ㍺㏦ᶵჾ࡟㐺⏝ࡍࡿᵓ㐀ᮦᩱࡢ㧗ᙉᗘ࣭㧗㠎

ᛶ࣭㍍㔞໬࡟ྥࡅࡓ◊✲ࡀᒎ㛤ࡉࢀ࡚࠸ࡿࠋ࡞࠿࡛ࡶࠊྜ㔠ඖ⣲࡜ࡋ࡚ࡢ✚ᴟⓗ࡞Ⅳ⣲฼⏝࡟╔┠ࡋࡓ㕲㗰ᮦᩱࡢ㠉᪂ᢏ⾡ࡢ☜❧ࡣࠊᡃࡀᅜࡢඖ⣲ᡓ␎ୖࡢ㔜せㄢ㢟ࡢ୍ࡘ࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࠋࡇࡢㄢ㢟ࡢᐇ⌧࡟ࡣࠊ⁐⼥⁐᥋᫬ࡢ⇕ᒚṔ࡟ࡼࡾᶵᲔⓗ≉ᛶࡢຎ໬ࡀㄏᘬࡉࢀࡸࡍ࠸Ⅳ⣲㗰࡟ᑐࡋࠊ௦᭰ྍ⬟࣭᭷ຠ࡞᥋ྜࣉࣟࢭࢫࡢ඘ᐇ
ࡀồࡵࡽࢀࡿࠋᡃࠎࡣࠊ୰࣭㧗Ⅳ⣲㗰࡟ᑐࡋࠊ㠀⁐⼥᥋ྜࣉࣟࢭࢫࡢ୍ࡘ࡛࠶ࡿᦶ᧿ᨩᢾ᥋ྜࢆ㐺⏝ࡋࡓ㝿ࡢ᥋ྜ≉ᛶ࡟ࡘ࠸୍࡚㐃ࡢ◊✲ࢆᒎ㛤ࡋ࡚࠸ࡿࠋᮏሗ࿌࡛ࡣࠊJIS-S55C ⇕ฎ⌮ᮦࢆᑐ㇟࡟ᦶ᧿ᨩᢾ᥋ྜヨ㦂ࢆᐇ᪋ࡋࡓ㝿ࡢࠊ᥋ྜࣃ࣓࣮ࣛࢱ࡜ᶵᲔⓗ≉ᛶࡢ┦㛵࡟ࡘ࠸᳨࡚ウࡋࡓ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ
㻞㻚

◊✲᪉ἲ㻌
⇕ฎ⌮࡟ࡼࡾᘬᙇᙉᗘ 1000MPa ⛬ᗘ࡟ㄪ㉁ࡉࢀࡓ JIS-S55C Ⅳ⣲㗰ᯈ㸦௨ୗࠊS55C-HT ᮦ㸧࡟ᑐࡋ࡚ࠊྛ✀᮲௳࡛ࡢᦶ᧿᧠ᢾ᥋ྜ(FSW㸧⥅ᡭࢆస〇ࡋࡑࡢ⥅ᡭ≉ᛶ࡟ࡘ࠸࡚ホ౯ࡋࡓࠋFSW ᥋ྜ⿦⨨࡜ࡋ࡚Ⲵ㔜ไᚚᆺᦶ᧿ᨩ
ᢾ᥋ྜ⿦⨨ࢆ౑⏝ࡋࠊFSW ࡢ୺せࣃ࣓࣮ࣛࢱ࡛࠶ࡿᅇ㌿㏿ᗘ࡜᥋ྜ㏿ᗘࢆࡑࢀࡒࢀ 100rpm-100mm/minࠊ
200rpm-100mm/minࠊ400rpm-100mm/min ࠾ࡼࡧ 400rpm-400mm/min ࡟ኚ໬ࡉࡏࠊධ⇕㔞ࡢ␗࡞ࡿᦶ᧿ᨩᢾ᥋ྜ⥅ᡭࢆస〇ࡋࡓࠋᅇ㌿ࢶ࣮ࣝᮦ㉁ࡣ WCࠊࢩࣙࣝࢲ࣮ᚄࡣ 12mmࠊࣉ࣮ࣟࣈᚄࡣ 4mm ࡜ࡋ࡚✺ྜࡏ᥋ྜࢆ⾜࠸ࠊ᥋ྜ㛤ጞ➃࠿ࡽ 5cm ௨ෆࡢ༊㛫࡛ࣂࣜࡀᑡ࡞ࡃࠊࣅ࣮ࢻᖜࡀ㐺ṇ࡜࡞ࡿࡼ࠺࡟Ⲵ㔜᮲௳ࢆᑟฟㄪᩚࡋࡓࠋTable 1 ࡟ᦶ㻌㼀㼍㼎㼘㼑㻌㻝㻌 ᦶ᧿ᨩᢾ᥋ྜ᮲௳㻌ᅇ㌿㏿ᗘ USP

᥋ྜ㏿ᗘ P P P LQ










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᧿ᨩᢾ᥋ྜ᥋ྜ᮲௳ࢆ♧ࡍࠋ㻟㻚ᐇ㦂⤖ᯝ䛸⪃ᐹ㻌

Fig. 1 ࡟ྛᦶ᧿ᨩᢾ᥋ྜ᮲௳࡛ᚓࡽࢀࡓࡢᦶ᧿ᨩᢾ᥋ྜ⥅ᡭᶓ᩿㠃ࡢ SEM ཯ᑕ㟁Ꮚീࢆ♧ࡍࠋ࠸ࡎࢀࡢ᮲
௳࡟࠾࠸࡚ࡶ kissing bond ࡜㢮ᆺࡉࢀࡿࡼ࠺࡞Ḟ㝗ࡢⓎ⏕ࡣㄆࡵࡽࢀࡎࠊ೺඲࡞⥅ᡭࡀస〇࡛ࡁ࡚࠸ࡿᵝᏊࡀ☜࠿ࡵࡽࢀࡓࠋࢶ࣮ࣝᅇ㌿㏿ᗘࡀ 200rpmࠊ400rpm ࡢ᮲௳࡛ࡣࠊᨩᢾ㡿ᇦ࡟ⓑⰍ࡛ほᐹࡉࢀࡿ⤌⧊ࡢ⌧ฟࡀㄆࡵࡽࢀࡓࠋࡋ࠿ࡋࠊධ⇕㔞ࡀ᭱ࡶᑠࡉ࠸ࡇ࡜ࡀண᝿ࡉࢀࡿ 100 rpm ࡢ᮲௳࡛ࡣࠊᨩᢾ㒊ෆ / ᨩᢾ㒊እࡢ⤌⧊࡟኱ࡁ࡞≉ᚩࡢ㐪࠸ࡣㄆࡵࡽࢀ࡞࠸ࠋࡇࡢࡼ࠺࡞ᨩᢾ㡿ᇦ࡟ᑐᛂࡋࡓⓑⰍ࡛ほᐹࡉࢀࡿ⤌⧊ࡢ⌧ฟࡣࠊ᥋ྜ᫬ࡢධ⇕ᙳ㡪࡛⤌⧊ኚែࠊᯒฟ≀ࡢ⏕ᡂࡀಁ㐍ࡉࢀࡓࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋ୍᪉࡛ࠊ400 rpm-100 mm/min
࡜ 400 rpm-400 mm/min ࢆẚ㍑ࡍࡿ࡜ࠊ400 rpm-400 mm/min ࡢ᮲௳࡛ࡣࠊⓑⰍ㡿ᇦࡢ⌧ฟࡣ⾲ᒙࡢࡳ࡛ࠊୖᒙ࣭
ୗᒙ࡛୙ᆒ୍࡞⤌⧊ࡀᙧᡂࡉࢀ࡚࠸ࡿྍ⬟ᛶࡀㄆࡵࡽࢀࡓࠋ
Fig. 2 ࡟ࠊྛᦶ᧿ᨩᢾ᥋ྜ᮲௳࡛ᚓࡽࢀࡓ⥅ᡭᶓ᩿㠃ࡢࣅࢵ࣮࢝ࢫ◳ᗘศᕸࢆ♧ࡍࠋᐃ఩⨨ࡣ᩿㠃ᯈཌ୰ኸ / ᥋ྜ⥺ᶓ᩿᪉ྥ࡜ࡋࡓࠋ ᐃ⠊ᅖࡣ᥋ྜ⏺㠃ࢆ୰ᚰ࡟๓㐍ഃ(A.S.)ࠊᚋ㏥ഃ(R.S.)ࡢ୧᪉ྥ࡟ 0.5mm 㛫− 127 −

㝸࡛ࢹ࣮ࢱࢆྲྀᚓࡋࡓࠋẕᮦ㒊࠿ࡽᨩᢾ㒊࡬ࡢ㑄⛣㒊࡟ഹ࠿࡛ࡣ࠶ࡿࡀ㌾໬㡿ᇦࡢᙧᡂࡀㄆࡵࡽࢀࡓࠋ
100rpm-100mm/min ࡢ᮲௳࡛ࡢ◳ᗘୖ᪼ࡣ࡯࡜ࢇ࡝ㄆࡵࡽࢀ࡞࠸ࡀࠊࡑࢀ௨እࡢ᮲௳࡛ࡣࠊᅇ㌿㏿ᗘࡢୖ᪼࡜࡜ࡶ
࡟ᨩᢾ㡿ᇦ࡛◳ᗘࡀ኱ࡁࡃ࡞ࡿഴྥࡀ☜ㄆࡉࢀࡓࠋᅇ㌿㏿ᗘࡀ 400 rpm ࡢ஧ࡘࡢ᮲௳࡛ࡣ◳ᗘࡣ(Hv)700 ⛬ᗘ࡟ࡲ࡛ୖ᪼ࡍࡿ⤖ᯝࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊ᭱ࡶ᥋ྜ

ᗘࡀ㧗࠸ࡇ࡜ࡀண᝿ࡉࢀࡿࡇࢀࡽࡢ᮲௳ࡢᨩᢾ㒊୰ኸ࡛ࡣࠊᑠ

ࡉ࡞◳ᗘపୗࡀ♧ࡉࢀࡿ≉ᚩࡀ☜ㄆࡉࢀࡓࠋ
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㻲㼕㼓㻚㻌㻝㻌 ᥋ྜ㒊᩿㠃⤌⧊ほᐹ⤖ᯝ㻲㼕㼓㻚㻌㻞㻌 ྛ᥋ྜ⥅ᡭ䛾᥋ྜ㒊᩿㠃◳ᗘศᕸ㻌㻌
Fig. 3 ࡣᦶ᧿ᨩᢾ᥋ྜ⥅ᡭ࡟ᑐࡋᐇ᪋ࡋࡓᘬᙇヨ㦂ࡢ⤖ᯝࢆᛂຊ㸫ࡦࡎࡳ⥺ᅗ࡜ࡋ࡚ᩚ⌮ࡋࡓࡶࡢ࡛࠶ࡿࠋ⥅ᡭ◚᩿ࡣ࠸ࡎࢀࡶ᥋ྜ⏺㠃௨እࡢሙᡤ࡛☜ㄆࡉࢀࡓࠋ
1400

ẕᮦࡼࡾࡶᙉᗘࡀୖ᪼ࡋࠊẚ㍑ⓗⰋዲ࡞ఙࡧࢆ⥔ᣢ

1200ࡋ࡚࠸ࡿഴྥࡀ☜࠿ࡵࡽࢀࡓࠋࡲࡓࠊእほほᐹ࡛ᨩ

1000ᢾ㒊࡟ᑐᛂࡋࡓⓑኚ㡿ᇦࡢᙧᡂ࠾ࡼࡧࣅࢵ࣮࢝ࢫ◳ᗘࡢୖ᪼ࡀࡳࡽぢࡽࢀ࡞࠿ࡗࡓ 100 rpm-100 mm/minࡢ᮲௳࡟࠾࠸࡚ࡣࠊᘬᙇᙉᗘࡀẕᮦ㸦S55C-HT ᮦཷ

Stress (MPa)200rpm-100mm/minࠊ400rpm-100mm/min ࡢ᮲௳࡛ࡣࠊ

400-100
400-400600

ୖࢆ☜ಖ࡛ࡁࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ௒ᅇࡢ᳨ウ࡛ࡣࠊ0ᙉᗘࢆྥୖࡉࡏࡓⅣ⣲㗰ࢆᑐ㇟࡜ࡋࡓᦶ᧿ᨩᢾ᥋ྜ

As recieved

400
200

ࡉࢀࡓࠋࡋ࠿ࡋࠊࡑࡢ௚ࡢ⤖ᯝࡼࡾࠊ⇕ฎ⌮࡟ࡼࡾ

200-100800

ධࡲࡲ㸧௨ୗ࡜ࡣ࡞ࡿࡶࡢࡢࠊẕᮦᙉᗘẚࡣ 80㸣௨
400rpm-400mm/min ࡢ᮲௳࡛ࡢࡳ⬤ᛶⓗ࡞≉ᚩࡀ♧100-100

0

10

20

30
Strain (%)

40

50

60

㻲㼕㼓㻚㻌㻟㻌 ྛ᥋ྜ⥅ᡭ䛾ᘬᙇ≉ᛶ㻌㻌ࡢ᭷ຠᛶࡀ☜ㄆࡉࢀࡓࠋ㻠㻚⤖ゝ㻌(1) S55C-HT ᮦࢆᑐ㇟࡟ᦶ᧿ᨩᢾ᥋ྜヨ㦂ࢆᐇ᪋ࡋࠊධ⇕㔞ࡢ␗࡞ࡿ᮲௳࡛ホ౯ࡋࡓ」ᩘࡢ᮲௳࡛⥅ᡭࢆస〇࡟ᡂຌࡋࡓࠋ(2) ྛ᮲௳࡛స〇ࡋࡓ⥅ᡭࡢ᩿㠃ࡢ◳ᗘศᕸ࡟㛵ࡍࡿホ౯ࢆᐇ᪋ࡋࡓࠋ
(3) ྛᦶ᧿᥋ྜ⥅ᡭࡢᘬᙇ≉ᛶࢆホ౯ࡋࠊ⇕ฎ⌮࡟ࡼࡾᙉᗘࢆྥୖࡉࡏࡓⅣ⣲㗰ࢆᑐ㇟࡜ࡋࡓᦶ᧿ᨩᢾ᥋ྜࡢ᭷ຠ
ᛶࢆ☜ㄆࡋࡓࠋ
ㅰ㎡㻌
 ࡇࡢᡂᯝࡣࠊ⊂❧⾜ᨻἲே᪂࢚ࢿࣝࢠ࣮࣭⏘ᴗᢏ⾡⥲ྜ㛤Ⓨᶵᵓ(NEDO)ࡢጤクᴗົࡢ⤖ᯝᚓࡽࢀࡓࡶࡢ࡛࠶ࡿࠋ
ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝 − 128 −

$$7,* ⁐᥋㒊ࡢᚤ⣽⤌⧊࡟ཬࡰࡍᦶ᧿ᨩᢾࣉࣟࢭࢫࡢᙳ㡪㱟㇂኱Ꮫ ⌮ᕤᏛ㒊᳃ ṇ࿴ ┠ⓗ0,* ࡸ $7,* ⁐᥋ࡣ㸪㧗࠸ရ㉁ࡢ⁐᥋ἲ࡛࠶ࡿࡀ㸪⁐᥋᫬࡟㓟⣲ࡀΰධࡍࡿࡇ࡜࡛㸪ᮦᩱ࡟ࡼࡗ࡚ࡣᶵᲔⓗᛶ㉁࡟ᝏᙳ㡪ࢆཬࡰࡍ࡜ࡉࢀ࡚࠸ࡿ㸬௒ᅇᑐ㇟࡜ࡋ࡚࠸ࡿ 1L 㗰ࡣ㸪⁐᥋㒊࡟㓟⣲ࡀྵ᭷ࡍࡿࡇ࡜࡛㠌ᛶࡀపୗࡍࡿ
࡜ࡉࢀ࡚࠸ࡿ඾ᆺⓗ࡞ᮦᩱ࡛࠶ࡿ㸬ࡑࡇ࡛㸪ᡃࠎࡣ㠌ᛶࢆᨵၿࡍࡿࡓࡵ࡟ᦶ᧿ᨩᢾࣉࣟࢭࢫ )ULFWLRQ6WLU3URFHVVLQJ)63 ࡟╔┠ࡋࡓ㸬)63 ࡣᦶ᧿ᨩᢾ᥋ྜ࡟࠾ࡅࡿ⤖ᬗ⢏ᚤ⣽໬ࢆ⾲㠃ฎ⌮ᢏ⾡࡟ᛂ⏝ࡋࡓࡶࡢ࡛࠶ࡾ㸪)63 ࢆ᪋ࡍࡇ࡜࡛ᮦᩱࡢᶵᲔⓗᛶ㉁ࡢྥୖࡀሗ࿌ࡉࢀ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ 1L 㗰ࢆᑐ㇟࡜ࡋ࡚㸪⁐᥋㒊࡬ࡢ㓟⣲ྵ᭷ࢆ෌⌧ࡍࡿࡓࡵ࡟㸪$U2 ࢩ࣮ࣝࢻ࢞ࢫࢆ౑⏝ࡍࡿ $$7,* ࢆ⏝࠸࡚⁐᥋ࢆ⾜ࡗࡓᚋ㸪ࡑࡢୖ࠿ࡽ )63 ࢆ᪋ࡋ㸪ᚤ⣽⤌⧊ࢆホ౯ࡍࡿࡇ࡜࡛ )63 ࡢᙳ㡪ࢆㄪᰝࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬㸬 ᐇ㦂᪉ἲ౪ヨᮦᩱࡣ 1L 㗰 6/1 㸪እᙧᑍἲࡣ PP:PP/PPW ࡛࠶ࡿ㸬⁐᥋ᐇ㦂ࡣ㸪⾲  ࡟♧ࡍ᮲௳࡛ࣅ
࣮ࢻ࢜ࣥࣉ࣮ࣞࢺ⁐᥋ࢆᐇ᪋ࡋࡓ㸬ヨ㦂∦⾲㠃ࡢ㓟໬≀㝖ཤࢆ┠ⓗ࡜ࡋ࡚㸪ᖹ㠃◊๐┙࡟࡚⁐᥋㒊⾲㠃࠿ࡽ PP◊๐ࡋࡓᚋ㸪⁐᥋㒊࡟ᑐࡋ࡚⾲  ࡟♧ࡍ᮲௳࡟࡚ )63 ࢆ᪋ࡋࡓ㸬⁐᥋๓㸪⁐᥋ᚋ࠾ࡼࡧ )63 ᚋࡢヨ㦂∦ࢆษ᩿㸪◊☻㸪࡞ࡽࡧ࡟࢚ࢵࢳࣥࢢࡋࡓ㸬ヨ㦂∦ࡢ᩿㠃ほᐹ࡟ࡼࡿ࣑ࢡࣟ㸪࣐ࢡࣟ⤌⧊ホ౯ࡣ㸪ගᏛ㢧ᚤ㙾 20 ࠾ࡼࡧ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾 6(0 ࢆ⏝࠸࡚⾜࠸㸪ᶵᲔⓗᛶ㉁ࡣࣅࢵ࣮࢝ࢫ◳ᗘヨ㦂࠾ࡼࡧᚤᑠ⾪ᧁヨ㦂࡟ࡼࡗ࡚ホ౯ࡋࡓ㸬⾲  ⁐᥋᮲௳             ⾲  )63 ᮲௳ ᐇ㦂⤖ᯝཬࡧ⪃ᐹ
 $$7,* ⁐᥋ᚋࡢ⁐᥋㒊ࡢ᩿㠃ほᐹ⤖ᯝࢆᅗ  ࡟♧ࡍ㸬ᅗ  ࡼࡾ㸪ࢩ࣮ࣝࢻ࢞ࢫ୰ࡢ㓟⣲ῧຍ⋡ࡢቑຍ࡜ඹ࡟㸪⁐ࡅ㎸ࡳ῝ࡉࡶቑຍࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡲࡓ㸪⁐᥋㒊୰ࡢ㓟⣲ྵ᭷㔞ࢆ ᐃࡋࡓ⤖ᯝ㸪㓟⣲ῧຍ⋡ࡶቑຍࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ୗ㒊࡟㸪ྛ⁐᥋㒊ࡢ (%6' ࡢ⤖ᯝࢆ♧ࡋ࡚࠸ࡿ㸬ᙧᡂࡉࢀࡓ⤌⧊ࡣ㸪࠸ࡎࢀࡶ࣐ࣝࢸࣥࢧ
࢖ࢺ࡛࠶ࡾ㸪⢏Ꮚᙧ≧ࡶ኱ࡁ࡞㐪࠸ࡀࡳࡽࢀ࡞࠸ࡇ࡜࠿ࡽ㸪㓟⣲ῧຍ⋡࡟ࡼࡿ⤌⧊ᙧᡂ࡬ࡢᙳ㡪ࡣᑡ࡞࠸࡜⪃࠼࡚࠸ࡿ㸬ࡲࡓ㸪ᅗ  ࡟♧ࡋࡓྛ⁐᥋㒊࡟࠾ࡅࡿ 6(0 ほᐹ࡞ࡽࡧ࡟㸪('6 ࡟ࡼࡿ⤌ᡂศᯒࢆ⾜ࡗࡓ࡜ࡇࢁ㸪⁐᥋㒊୰࡟」ᩘࡢ㓟໬≀ࡢᏑᅾࡀ☜ㄆࡉࢀࡓ㸬ࡑࡋ࡚㸪㓟໬≀ࡢᏑᅾᩘࡣ㸪㓟⣲ῧຍ⋡࡜࡜ࡶ࡟ቑຍࡍࡿࡇ࡜ࡀศ࠿ࡗࡓࢩ
࣮ࣝࢻ࢞ࢫ࡟ῧຍࡋࡓ㓟⣲ࡣ㸪⁐᥋㒊࡛㓟໬≀࡜ࡋ࡚ᯒฟࡋࡓࡇ࡜ࡀ♧၀ࡉࢀࡿ㸬ࡇࢀࡽࡢ㓟໬≀ࡢྠᐃࢆ ('6ศᯒ࡟࡚ヨࡳࡓ⤖ᯝ㸪㓟໬≀࠿ࡽ࢔࣑ࣝࢽ࣒࢘ࡢᏑᅾࢆ☜ㄆࡋࡓ㸬ࡼࡗ࡚㸪㓟໬≀ࡣ࢔࣑ࣝࢽ࣒࢘ࡢ㓟໬≀࡛࠶ࡿ࡜࠸࠼ࡿ㸬㓟໬≀ࡢᙧែࡣ P ⛬ᗘࡢ⛬ᗘࡢ⌫≧ࢆ࿊ࡋ࡚࠸ࡓ㸬 )63 ฎ⌮ᚋࡢྛ⁐᥋㒊࡟࠾ࡅࡿ (%6' ࡢ⤖ᯝࢆᅗ  ࡟♧ࡍ㸬ࡇࢀࡽࡢ⤖ᯝࡼࡾ㸪ࢩ࣮ࣝࢻ࢞ࢫ୰ࡢ㓟⣲ῧຍ⋡ࡀ 㸣ࡢࡶࡢࡀ㸪)63 ࢆ᪋ࡍࡇ࡜࡟ࡼࡗ࡚࣐ࣝࢸࣥࢧ࢖ࢺ⤌⧊ࡀ᭱ࡶᚤ⣽໬ࡉࢀࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡇࡢ⤖ᬗ⢏ࡢᚤ⣽໬ࡣ㸪ᶵᲔⓗ≉ᛶࡢᨵၿ࡟ᐤ୚ࡍࡿ࡜⪃࠼ࡽࢀࡿ㸬− 129 −ᅗ   $$7,* ⁐᥋ᚋࡢ⁐᥋㒊ࡢ᩿㠃ほᐹ⤖ᯝᅗ   $$7,* ⁐᥋ᚋࡢ⁐᥋㒊ࡢ᩿㠃ほᐹ⤖ᯝ ⤖ゝ
$$7,* ⁐᥋ᚋࡢ⁐᥋㒊ࡢ᩿㠃ほᐹ⤖ᯝ )63 ୰࡟㓟⣲ࡀከࡃΰධࡋࡓሙྜࡣ㸪ࣆࢽࣥࢢຠᯝ࡛ᪧ࣮࢜ࢫࢸࢼ࢖ࢺ
⢏⏺ࡢᚤ⣽໬ࡀ㉳ࡇࡾ㸪࣐ࣝࢸࣥࢧ࢖ࢺ⤌⧊ࡶᚤ⣽໬ࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬ཧ⪃ᩥ⊩ ┬␎㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 130 −

ࢢࣛࣇ࢙ࣥ㔠ᒓ㓟໬≀ࢼࣀ」ྜᮦᩱ࡟㛵ࡍࡿ◊✲ᮾ໭኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᮦᩱࢩࢫࢸ࣒ᕤᏛᑓᨷ 㥁ᬡ㭉㸪Ꮮᑠῂ㸪ⓒ℩ᶞ㸪኱ᕝ⯗ᖹ㸪ຍ⸨ඃ඾㸪ᕝᓮ ு࠙⥴ゝࠚ  ࢢࣛࣇ࢙ࣥ㸦graphene㸧ࡣࠊᴟࡵ࡚ඃࢀࡓ㟁ẼⓗࠊᶵᲔⓗࠊ⇕ⓗ≉ᛶࢆ᭷ࡋ࡚࠾ࡾࠊࢢࣛࣇ࢙ࣥࢆ┤᥋฼⏝ࡍࡿࡤ࠿ࡾ࡛࡞ࡃࡑࢀࡽࢆ᪤Ꮡࡢᮦᩱ࡜」ྜ໬ࡍࡿࡇ࡜࡟ࡼࡗ࡚ᚑ᮶࡟࡞࠸≉ᛶࢆᣢࡘᶵ⬟ᛶࢼࣀ」ྜᮦᩱ
ࡢ๰ᡂࡀᮇᚅࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊಶࠎࡢࢢࣛࣇ࢙ࣥ࡟ศ㞳ࡍࡿࡇ࡜ࡀ㞴ࡋࡃᐜ᫆࡟จ㞟ࡍࡿࡓࡵࠊᆒ୍࡟ศ
ᩓࡋࡓࢼࣀ」ྜయ࡜ࡋ࡚༑ศ࡞≉ᛶࡀᘬࡁฟࡉࢀࡓ౛ࡀᑡ࡞࠸ࡢࡀ⌧≧࡛࠶ࡿࠋᮏ◊✲ࡣࢢࣛࣇ࢙ࣥ/㔠ᒓ㓟໬≀ࢼࣀ」ྜᮦᩱ࡟ⓗࢆ⤠ࡾࠊࡑࡢస〇ࣉࣟࢭࢫ࠾ࡼࡧ㟁Ẽⓗ≉ᛶࡸ⇕㟁ᶵ⬟≉ᛶࡢ㧗ᗘ໬࡬ࡢྍ⬟ᛶࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ࣊ࢸࣟจ㞟స⏝ࢆ฼⏝ࡋ࡚㔠ᒓ㓟໬≀⢊ᮎ࡜ࢢࣛࣇ࢙ࣥࡀᆒ୍࡟ΰྜࡉࢀࡓ
ࢢࣛࣇ࢙ࣥ/ 㔠ᒓ㓟໬≀ΰྜ⢊ᮎࢆస〇ࡋࠊࡑࢀࢆᨺ㟁ࣉࣛࢬ࣐↝⤖㸦SPS㸧ࡋࡓᚋࠊࢢࣛࣇ࢙ࣥྵ᭷⋡ࡸࣉࣟࢭࢫ᮲௳ࡀ⤌⧊ࡸ⏺㠃≧ែ࡟୚࠼ࡿᙳ㡪࠾ࡼࡧ㟁Ẽⓗ⇕㟁ⓗ≉ᛶ࡜ࡢ㛵ಀ࡟ࡘ࠸࡚ヲ⣽࡞᳨ウࢆຍ࠼ࡓࠋ
࠙ᡂᯝࠚࡲࡎࠊ໬Ꮫⓗฎ⌮࡟ࡼࡾᐁ⬟ᇶࢆಟ㣭ࡋࡓ㓟໬ࢢࣛࣇ࢙ࣥ㸦GO㸧ࡢస〇ࠊpH ࢆㄪᩚࡋࡓỈ⁐ᾮ୰࡬ࡢ GOࡢᆒ୍ศᩓࠊ࣊ࢸࣟจ㞟స⏝࡟ࡼࡿ GO ࡜ SrTiO3 ⢊ᮎࡢᆒ୍ΰྜ࠾ࡼࡧ SPS ↝⤖࡟ࡼࡿ⦓ᐦ໬࡟ࡘ࠸࡚㏙࡭
࡚࠸ࡿࠋSPS ࡟ࡼࡾ in-situ ࡛ GO ࡣࢢࣛࣇ࢙ࣥ㸦r-GO㸧࡟㑏ඖࡉࢀࠊᩘᒙࡢࢢࣛࣇ࢙ࣥ㸦r-GO㸧ࡀ⢏⏺࡟ศᕸࡋࡓᚤ⣽࡞⤌⧊࡜࡞ࡿ㸦ᅗ㸯㸧ࠋࢩࢼࢪ࣮ຠᯝ࡜ࡋ࡚ࠊࢢࣛࣇ࢙ࣥ࡟ࡼࡗ࡚㓟⣲Ḟᦆࢆ⏕ࡌࠊࡑࢀ࡟ࡼࡾ㟁Ẽఏᑟ⋡ࡀ኱ᖜ࡟ᨵၿࡉࢀࡿࡇ࡜♧ࡋࡓࠋᚑ᮶ࠊඖ⣲ࢻ࣮ࣉ࡟ࡼࡗ࡚㟁Ẽఏᑟ⋡ࢆྥୖࡉࡏ࡚࠸ࡓࡀࠊඖ⣲ࢻ࣮ࣉ↓ࡋ࡛㟁Ẽఏᑟ⋡ࢆᨵၿ࡛ࡁࡿࡇ࡜ࢆึࡵ࡚᫂ࡽ࠿࡟ࡋࡓ㸦ᅗ㸰㸧ࠋࡲࡓࠊࢮ࣮࣋ࢵࢡಀᩘࡢኚ໬ࡣᑠ
ࡉ࠸ࡇ࡜ࠊᆒ୍࡟ศᩓࡋࡓࢢࣛࣇ࢙ࣥᒙࡣ⢏ᡂ㛗ᢚไຠᯝࡀ኱ࡁࡃ⇕ఏᑟ⋡ࡀపࡃᢚ࠼ࡽࢀࡿࡇ࡜࡞࡝ࠊ⥲ྜⓗ࡞ຠᯝ࠿ࡽ⇕㟁ᶵ⬟≉ᛶࢆᨵၿ࡛ࡁࡿࡇ࡜ࢆ♧ࡋࡓ㸦ᅗ㸱㸧ࠋࡉࡽ࡟ࠊࡑࡢཎᅉࡸ࣓࢝ࢽࢬ࣒ࢆヲ⣽࡟⪃ᐹࡋ࡚࠸ࡿࠋ ḟ࡟ࠊTiO2 ⢊ᮎࡢỈ⣲㑏ඖἲ࡟ࡼࡾࠊ㓟⣲Ḟᦆ㔞ࡢ␗࡞ࡿ࣐ࢢࢿࣜ┦ࡢ⏕ᡂࢆヨࡳࠊ༢┦ࡢ✀ࠎ࣐ࢢࢿࣜ
┦ࡀᚓࡽࢀࡿỈ⣲㑏ඖ᮲௳ࢆ᫂ࡽ࠿࡟ࡍࡿ࡜࡜ࡶ࡟ࠊ࣐ࢢࢿࣜ┦༢┦↝⤖యࡢస〇࡟ᡂຌࡋࡓࠋTi9O17 ┦ࡣࠊᚑ᮶࡟࡞࠸ඃࢀࡓ⇕㟁≉ᛶࢆ♧ࡍࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋ ඃࢀࡓ⇕㟁≉ᛶࢆ♧ࡍ Ti9O17 ࣐ࢢࢿࣜ┦༢┦⢊ᮎ࡜ࢢࣛࣇ࢙ࣥ࡜ࡢࢼࣀ」ྜ໬ࢆ⾜࠸ࠊඛ࡟㏙࡭ࡓࡼ࠺࡟ࠊࢢࣛࣇ࢙ࣥ࡜ࡢࢩࢼࢪ࣮ຠᯝ࡟ࡼࡗ࡚ࠊࡉࡽ࡞ࡿ⇕㟁ᶵ⬟≉ᛶࡢ㧗ᗘ໬ࡢྍ⬟ᛶࢆ᳨ウࡋࡓࠋ┤᥋ⓗ࡞ࢩࢼࢪ࣮ຠᯝࡣࡳࡽࢀ࡞࠿ࡗࡓࡀࠊ㟁Ẽఏᑟ⋡ࡢྥୖࠊ⢏ᡂ㛗ᢚไຠᯝ࡟ࡼࡿ⇕ఏᑟ⋡ࡢపୗࡀࡳࡽࢀࠊ⤖ᯝ࡜ࡋ࡚⇕㟁≉ᛶࡢᨵၿ࡟ࡘ࡞ࡀࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋ ᮏᡂᯝࡣࠊ㧗ᶵ⬟ᛶࢢࣛࣇ࢙ࣥ/ 㔠ᒓ㓟໬≀↝⤖ࢼࣀ」ྜᮦᩱ࡟ⓗࢆ⤠ࡾࠊ࣊ࢸࣟจ㞟స⏝࡟ࡼࡿᆒ୍ΰྜ
ࡉࢀࡓ GO/ 㔠ᒓ㓟໬≀ΰྜ⢊ᮎࡢ⏕ᡂ࡜ࢢࣛࣇ࢙ࣥ㸦r-GO㸧࡬ࡢ in-situ 㑏ඖస⏝ࢆྵࡵࡓ↝⤖⦓ᐦ໬ࣉࣟࢭ
ࢫࡢ᭱㐺໬ࠊࡉࡽ࡟㓟⣲Ḟᦆ࡟ࡼࡿ㟁Ẽⓗ⇕㟁ⓗᶵ⬟≉ᛶࡢ㧗ᗘ໬ࡢྍ⬟ᛶࢆึࡵ࡚᫂ࡽ࠿࡟ࡋࡓࡶࡢ࡛࠶
ࡿࠋࡲࡓࠊ᪂ࡋ࠸⇕㟁ᮦᩱ࡬ࡢᛂ⏝ࡢྍ⬟ᛶࢆ♧ࡋࠊᇶ♏ⓗ◊✲ࡤ࠿ࡾ࡛࡞ࡃᕤᏛⓗᛂ⏝࡟⧅ࡀࡿࡶࡢ࡜ᮇ
ᚅ࡛ࡁࡿࠋ
࠙ㅰ㎡ࠚ
 ᮏ◊✲ࢆ᥎㐍ࡍࡿ࡟࠶ࡓࡾࠊᮾ໭኱Ꮫ Xiaopeng Feng ༤ኈ࡟ࡈ༠ຊࢆ㡬ࡁࡲࡋࡓࠋࡇࡇ࡟ࠊᚚ♩⏦ࡋୖࡆࡲࡍࠋ࠙ཧ⪃ᩥ⊩ࠚ
㸯㸧Xiaopeng Feng, Yuchi Fan, Naoyuki Nomura, Keiko Kikuchi, Lianjun Wang, Wan Jiang, Akira.Kawasaki͆Graphenepromoted oxygen vacancies in perovskite for enhanced thermoelectric properties.͇ Carbon 112 (2017) 169-176− 131 −

ᅗ㸯 r-GO/STO ↝⤖యࡢ࣑ࢡ
ࢡࣟ⤌⧊








ᅗ㸰 㟁Ẽఏఏᑟ⋡ࠊࢮ࣮࣋
࣋ࢵࢡಀᩘࠊࣃ࣮࣡ࣇ࢓ࢡ
ࢡࢱ࣮







− 132 −

ᅗ㸱 ⇕ఏᑟᑟ⋡࠾ࡼࡧᛶ⬟⬟ᣦᩘ㻌᧤ඹྠ◊✲ศ㔝㔝㸸」ྜ໬ᶵ
ᶵᵓᏛศ㔝᧥

− 133 −⢊ ᮎ ෬ 㔠 ἲ ࡛ స 〇 ࡋ ࡓ CaO
C⢏Ꮚ ศᩓᙉ໬࣐ࢢࢿࢩ࣒࢘ᇶ 」 ྜᮦᩱࡢ≉ ᛶ᪥ᮏ ኱Ꮫ⏕⏘ ᕤᏛ㒊
1. ⥴ゝ
 పⅣ⣲♫఍ࢆపࢆᵓ⠏ࡍࡿࡓ
ࡓࡵ࡟ࡣ㸪ᐦᗘࡢᑠࡉ࡞࣐
࣐ࢢࢿࢩ࣒࢘(Mg)࡟
࡟ࢭ࣑ࣛࢵࢡ
ࢡࢫ࡞࡝ࡢᙉ
ᙉ໬ᮦࢆศᩓࡉࡉࡏ㸪Ეⓗ≉ᛶࢆྥ
ྥୖࡉࡏࡓ㔠
㔠ᒓᇶ」ྜᮦᮦᩱࡢ๰〇ࡀᚲ
ᚲせ
ᶵᲔ
1
1),
2)
୙ྍ
ྍḞ࡛࠶ࡿ
㸬ᮏ◊✲࡛
࡛ᙉ໬ᮦ࡜ࡋ
ࡋ࡚㑅ᢥࡋࡓ㓟㓟໬࢝ࣝ
ࣝࢩ࣒࢘(CaaO)ࡣ㸪᭤ࡆ
ࡆᙉᗘ 100~1
160 MPa㸪⼥
⼥Ⅼ
2845 K ࡛࠶ࡿ 3)㸬ࡋࡓࡀࡗࡗ࡚㸪CaO ࡢῧຍࡣ
ࡢ
Mg ࡢ
ࡢ㍍
ᛶࢆᦆ࡞ࢃࡎ
ࡎ࡟ᙉᗘ࡞ࡽ
ࡽࡧ࡟⪏⇕ᛶ
ᛶࢆྥୖࡉࡏࡿࡿྍ㔞ᛶ⬟ᛶᛶࢆ⛎ࡵ࡚࠸
࠸ࡿ㸬ᅛ┦≧ែ࡛ࡑ
ࡑࢀࡒࢀࡢ⢊⢊ᮎࢆ」ྜ໬ࡉࡏࡿᡭἲ࡟
࡟࣓࢝ࢽࢽ࢝ࣝ࢔ࣟ࢖
࢖ࣥࢢ(Mechhanical Alloyying : MA)ἲἲࡀ
࠶ࡾ㸪ᙉ໬ᮦࢆ
ࢆ࣐ࢺࣜࢵࢡ
ࢡࢫ୰࡟ᆒ୍࡟ศᩓࡉࡏࡿ
ࡿࡇࡿ㸬ࡲࡓ㸪MMA ฎ⌮୰ࡸ
ࡸࡑࡢᚋࡢຍ⇕⇕࡟࡜ࡀྍ⬟࡛࠶ࡿ
࡜࣐ࢺࣜࢵࢡ
ࢡࢫ࡜ࡢ㛫࡛ᅛ┦཯ᛂࢆㄏㄏ㉳ࡼࡗ࡚ᙉ໬ᮦ࡜
ࡏ㸪᪂ࡓ࡞ᙉ
ᙉ໬┦ࢆ⏕ᡂ
ᡂࡉࡏࡿࡇ࡜ࡶᮇᚅ࡛ࡁࡿ
ࡿ㸬ࡉࡏ౛࠼ࡤ㸪MA ࣉࣉࣟࢭࢫ࡟ࡼ
ࡼࡗ࡚ㄏ㉳ࡉࢀࡿᅛ┦཯ᛂᛂ⏕≀࡟ࡣ㸪CaO
O ࡼࡾࡶᙉᗘ
ᗘࡢ㧗࠸ Mg
gO(᭤ࡆᙉᗘ 226
ᡂ≀MPPa)3) ࡸ㧗 ᙉᙉᗘࡢྥୖ ࡀᮇᚅ࡛ࡁ ࡿ Mg2Ca(⼥⼥Ⅼ
988 K)ࡀ⪃࠼ࡽࡽࢀࡿ㸬ᮏࣉࡗ࡚⣧ Mg ⢊⢊ᮎ ᮏ◊✲࡛ࡣ㸪ඛࡎ MA ࣉࣟࢭࢫ࡟ࡼ
࡜ CaO ⢊ᮎࡢ
ࡢ」ྜ໬(MA ⢊ᮎ)ࢆヨࡳࡳࡓ㸬ḟ࡟㸪పపpark࠿ ࡘ ▷ ᫬ 㛫 ↝ ⤖ ࡀ ྍ ⬟ ࡞ ᨺ 㟁 ࣉ ࣛ ࢬ ࣐ ↝ ⤖ (Spasma Sinterring : SPS)ࣉ
ࣉࣟࢭࢫ࡛㸪స〇ࡋࡓ MA
A⢊
Pla
ᮎ࠿
࠿ࡽࣂࣝࢡ(S
SPS)ᮦࡢస〇〇ࢆヨࡳࡓ㸬స〇ࡋࡓ MAA⢊ᮎ࠾࠾ࡼࡧ SPS ᮦᮦࡢ◳ࡉ࠾ࡼ
ࡼࡧ໬ྜ≀┦┦࡟࠾ࡼࡰࡍ MAฎ⌮⌮᫬㛫࡜ CaOO ῧຍ㔞ࡢᙳ
ᙳ㡪ࢆ᫂ࡽ࠿
࠿࡟ࡍࡿࡇ࡜ࢆࢆ┠ⓗ࡜ࡋࡓ㸬
2. ᐇ㦂᪉ἲ
 ⣧ Mg ⢊ᮎ࠾࠾ࡼࡧ CaO ⢊ᮎࢆ⏝࠸ࡓ⢊ࡓ㸬ᙉ໬ᮦ࡛࠶࠶ࡿCaaO ࡢῧຍ㔞㔞ࢆ 10㸪20㸪30 ࠾ࡼࡧ 40 mass%࡟㑅㑅ᢥࡋ㸪㸪ྛ⤌ᡂࡢ⥲⥲㔞ࡀ 25.0 g ࡟࡞ࡿࡼ࠺࡟⛗㔞ࡋࡓ㸬㸬ࡇࢀࡽࡢ⢊ᮎ࡜ M
MA ฎ⌮୰ࡢ
ࡢ↝௜ࡁ㜵Ṇ
Ṇ๣࡜ࡋ࡚ࢫࢸ
ࢸ࢔࣒㗰〇࣮࣎ࣝ
ࣝ 400 g ࢆ࢔࢔ࣝࢦࣥ࢞ࢫ㞺㞺ᅖࣜࣥ㓟㸪ࢡ࣒ࣟ
〇ᐜჾ࡟⿦ධ
ධࡋ㸪㐟ᫍᆺ࣎
࣮࣎Ẽ୰࡛ 500 ml ࡢࢡ࣒ࣟ㗰〇h㸪P-5)ࢆ⏝࠸
࠸࡚ MA ฎ⌮⌮ࡋࡓ㸬MA ฎฎ⌮࣑ࣝࣝ(Fritsch௳ࡣ㸪࣮࣎ࣝ
࣑ࣝࣝࡢබ㌿㌿㏿ᗘࢆ 200 rpm ୍ᐃ࡜
࡜ࡋ㸪
᮲௳
MA
A ฎ⌮᫬㛫ࡣࡣ 2 h㸪4 h㸪8 h ࠾ࡼࡧ 16 h ࡜ኚ໬ ࡉࡏ
ࡓ㸬
㸬
ᚓࡽࢀࡓ
ᚓ
MA
A ⢊ᮎ 3 g ࢆȭ20 ࡢ㯮㖄ᆺᆺ࡟⿦ධࡋ㸪S
SPS⿦⨨⨨ࢆ⏝࠸࡚ᅛ
ᅛ໬ᡂᙧࡋࡓࡓ㸬SPS ↝⤖
⤖᮲௳ࡣᡂᙧ ᗘ
823 K㸪ຍᅽຊຊ 49 MPa㸪↝↝⤖ಖᣢ᫬㛫
㛫ࡣ 15 min.୍୍ᐃ   ஂಖ⏣ ṇᗈ

ࡋࡓ㸬
࡜ࡋ
MA
M ⢊ᮎ࠾ࡼࡧ SPS ᮦࡢࡢ◳ࡉࡣ㸪ࡑࢀ
ࢀࡒࢀ࣐࢖ࢡ
ࢡࣟࣅࢵࢵ࣮࢝ࢫ◳ᗘ
ᗘィ(Ⲵ㔜 10 kkg)࡛ 15 ࣏࢖࢖ࣥࢺ࠾ࡼࡧ
ࡧࣅࢵ࣮࢝࢝ࢫ◳ᗘィ
ィ(Ⲵ㔜 1 kg))࡛ 10 ࣏࢖ࣥࢺ ᐃࡋࡓࡓ㸬MAA ⢊ᮎ࠾ࡼࡧࡧ SPS ᮦࡢ໬໬ྜ≀┦ࡢྠᐃࡣ㸪X ⥺ᅇᅇᢡ⿦⨨⨨(40 kV 㸪60
0 mA ࡢ CuKKȘ⥺㸪ᅇᢡゅゅᗘ 20㹼80r㸪
ᅇᢡᢡ㏿ᗘ 1.66
10-2 deg/s)࡛
࡛ ᐃࡋࡓ㸬MAM ⢊ᮎࡢᙧ
ᙧ≧ࡸ኱኱ࡁࡉࢆ㉮ᰝ
ᰝᆺ㟁Ꮚ㢧ᚤ㙾
㙾(SEM)࡛ほほᐹࡋࡓ㸬
3. ᐇ㦂⤖ᯝ࠾ࡼᐇࡼࡧ⪃ᐹ Fig.
F 1 ࡟ MA ฎ⌮᫬㛫࡟ᑐᑐࡍࡿ Mg-40
0 CaO ⢊ᮎࡢࡢᙧ≧࠾࠾ࡼࡧᖹᆒ⢏⢏Ꮚᚄࢆ♧ࡍ㸬㸬⣧ Mg ⢊ᮎ
ᮎ(a)ࡣᡥᖹ≧≧ࢆࡋ࡚࡚࠾ࡾ㸪⢏Ꮚᚄࡣ 384.5 ȣm ࡛࠶ࡗࡓࡓࡀ㸪CaO ⢊ᮎ⢊(b)ࡣ
ࡣ࣮࢟ࣗࣈ≧≧ࢆࡋ࡚࠾ࡾ 㸪⢏Ꮚᚄࡣ 13.1 ȣm ࡜⣧࡜Mgg ⢊ᮎ࡜ẚ㍑ࡋ࡚ᚤ⣽࡛࠶
࠶ࡗࡓ㸬MA ฎ⌮ 2 h (cc)࡛
ࡣ㸪࣮࣎ࣝࡢ⾪⾪✺࡟ࡼࡾ MMg ⢊ᮎࡣⷧࡃᘏࡤࡉࢀࡓ
ࡓᙧࢆ࿊ࡋ㸪࠿ࡘ Mg ⢊ᮎ⾲㠃㠃࡟ࡣ CaO ⢊ᮎࡀ௜╔ࡋ
⢊
ࡋ࡚
≧ࢆ
࠸ࡿ
ࡿᵝᏊࡀほᐹ
ᐹࡉࢀࡓ㸬MAA ฎ⌮ 4 h (d)࡛ࡣ㸪࣮࣮࣎ࣝࡢ⾪⾪✺࡟ࡼࡾ⢊⢊ᮎࡀ⢊○ࡉࢀ
ࢀ㸪⢏Ꮚᚄࡣ
ࡣ 82.8 ȣm ࡜ᑠࡉࡉࡃ࡞ࡗࡓ㸬MA ฎ⌮ 8 h (e)࡛ࡣ㸪ࡉࡽ࡟⢊○ࡀࡀ㐍ࡳ㸪ᚤ⣽࡞⢊ᮎࡀจ㞟ࡋ࡚࠸
࠸ࡿᵝᏊࡀほほᐹࡉࢀࡓ㸬M
MA⌮ 16 h(f)࡛ࡣ
ࡣ㸪⢊ᮎࡢᚤ
ᚤ⣽໬࠾ࡼࡧจ
จ㞟ࡀ㐍ࡳ㸪⢏ฎ⌮Ꮚᚄ
ᚄ 29.5 ȣm ࢆ♧ࡋࡓ㸬M
Mg-10㸪20 ࠾ࡼࡧ࠾
30 CaOC⢊ᮎᮎࡢሙྜࡶ㸪MA ฎ⌮᫬᫬㛫ࡀ㛗ࡃ࡞ࡿ࡟ࡘࢀ࡚⢊⢊ᮎࡣᚎᚎࠎ࡟ᚤ⣽໬
໬ࡋࡓ㸬MAM ฎ⌮᫬㛫
㛫࡟ᑐࡍࡿ M
Mg-x CaO (x==10㸪20㸪30㸪40)⢊ᮎࡢ◳ࡉࡣࡣ㸪⣧ Mg ⢊⢊ᮎࡔࡅ࡟ MAA ฎ⌮ࢆ㐺⏝⏝ࡋࡶ㸪◳ࡉࡢୖ
ୖ᪼ࡣㄆࡵࡽࢀ
ࢀࡎ㸪MA ᮍฎ⌮࡜ྠ➼
ᮍ
➼ࡢ
࡚ࡶ
್ࢆ
ࢆ♧ࡋࡓ㸬
McCormickMࡽࡣࡽ MA ฎ⌮⌮࡟ࡼࡗ࡚ Mg
M ࡟ᑟධࡉࢀ
ࢀࡿෆ㒊㒊ࡦࡎࡳࡣ㸪FCCF㔠ᒓࡼ ࡾᑠࡉ࠸࡜ሗ
ሗ࿌ࡋ࡚࠸ࡿࡿ 4)㸬

Fig.. 1 SEM miccrographs of mmechanically alloyed Mg-4
40
CaO
O powders tog
gether with mmean particle
e size (N=20)㸹
(a) purepMg, (b) CaO,C(c) 2 h, ((d) 4 h, (e) 8 h and (f) 16 h.
h− 134 −

MA ฎ⌮ 8 h ࡢ Mg-400 CaO ࡛᭱ࡶࡶ㧗࠸್ 179HVࡀᚓࡽࢀࡓࡓ㸬ࡋࡓ⢊ᮎࢆ SPPS ࣉࣟࢭࢫ࡛
࡛ᅛ໬ᡂᙧࡍ
ࡍࡿ2) MA ฎ⌮ࡋ࡜㸪ᅛ┦཯཯ᛂࡀ⏕ࡌ㸪M
MgO ࠾ࡼࡧ CaH2 ࡀ⏕ᡂ
ᡂࡋ
ࡓ㸬
ཧ⪃
⪃ᩥ⊩
1) బࠎᮌ ඖ㸪ཎ ಇ㍜㸪 ྜྷ⏣ ㄔ㸪ᗓᒣఙ⾜㸪 ⸨஭ᩄ⏨㸸㍍㔠
㔠ᒓ㸪52 (20002)㸪216-2
220㸬
㔠
Ⳣཪ
ཪ ಙ㸸㍍㔠ᒓ㸪52 (20022)㸪
2) ᒣᓮ᫭ᘯ㸪㔠Ꮚ⣧୍㸪
421-425㸬ࢡࢫᕤᏛࣁࣥࣥࢻ3) ᪥ᮏࢭ࣑ࣛࢵࢡࢫ༠఍ 㸸ࢭ࣑ࣛࢵࢡ
ࣈࢵࢡ㸸ᢏሗ
ሗᇽฟ∧(ᰴ))㸬
4) S. Hwang, C.
C Nishimurra and P. G. McCormick :Mat. Sci. an
nd Eng. A, A
A318 (2001), 22-33.
㻞㻜㻜
㻿㻼㻿㻌㼙
㼙㼍㼠㼑㼞㼕㼍㼘㼟㻌㼒㼍㼎㼞㼕㼏㼍㼠㼑㼐㻌㼒㼞㼛㼙㼙㻌㼐㼕㼒㼒㼑㼞㼑㼚㼠㻌㼙㼑㼏㼔㼍㼚㼕㼏㼍㼘㻌㼍㼘㼘㼛㼥㼕㼚㼓㻌㼠㼕㼙㼑㻌㻼㼞㼑㼟㼟㼡㼡㼞㼑㻌㻠㻥㻌㻹㻼㼍㻝㻡㻜㼂㼕㼏㼗㼑㼞㼟㻌㼔㼍㼞㼐㼚㼑㼟㼟㻘㻌㻴㼂㻌㻝ࡋࡓࡓࡀࡗ࡚㸪⣧⣧ Mg ࡟ᑐࡋ
ࡋ࡚㸪MA ࡟ࡼࡿຍᕤࡦࡎ࡟ࡎࡳࡢᑟᑟධࡣᅔ㞴ࡔ
ࡔ࡜⪃࠼ࡽࢀ
ࢀࡿ㸬Mg-10 CaO
C
⢊ᮎࡢሙ
ሙྜ
ࡶ MA ฎ⌮࡟ࡼࡼࡗ࡚◳ࡉࡢ
ࡢྥୖࡣ㸪ㄆࡵ
ࡵࡽࢀ࡞࠿ࡗࡗࡓ㸬A ฎ⌮ 2 h ⾜⾜ࡗࡓ Mg-20
0㸪30 ࠾ࡼࡧ
ࡧ 40 CaO ⢊ᮎᮎ࡛MAࡶ㸪㸪◳ࡉࡢྥୖ
ୖࡣㄆࡵࡽࢀ
ࢀ࡞࠿ࡗࡓࡀ㸪MA ฎ⌮ࢆࢆࡉࡽ࡟㛗᫬㛫⾜࠺࠺ࡇ࡜࡛◳ࡉ
ࡉࡣྥୖࡋ㸪≉≉࡟ Mg-40 C
CaO
ᮎࢆ MA 16 h ฎ⌮ࡋࡓ᫬᫬㸪᭱ࡶ㧗࠸
࠸್ 173 HV ࡀࡀᚓ⢊ᮎࡽࢀࢀࡓ㸬ࡇࢀࡣ
ࡣ㸪Fig. 1 (c)࡟♧ࡋࡓࡼ࠺࠺࡟㸪MA ฎ ⌮ 2h ࡛ࡣ㸪⢊ᮎࡢ࡛ࡢᚤ⣽໬࠾ࡼࡧ CaO ࡢศศᩓࡀ㐩ᡂࡉࢀ
ࢀ࡚࠸࡞࠸ࡓࡵ࡛࠶
࠶ࡿ࡜⪃࠼ࡽ
ࡽࢀࡿ㸬ࡲࡓ㸪㸪MA ⢊ᮎࡢࡢ Xᅇᢡ⤖ᯝ࡛ࡣ
ࡣ㸪Mg ࠾ࡼࡧ CaO ࡢᅇᅇᢡࣆ࣮ࢡࡢࡳࡳࡀ⥺ᅇ☜ㄆㄆࡉࢀࡓ㸬ࡋ
ࡋࡓࡀࡗ࡚㸪◳ࡉࡢྥୖࡣ㸪MA ୰ࡢࡢᅛ┦཯཯ᛂ࡟ࡼࡿ໬
໬ྜ≀ࡢ⏕ᡂ
ᡂࡢᐤ୚࡛ࡣ࡞
࡞ࡃ㸪CaO ࡜ࡢ」ྜྜ໬ࡀ୺࡞せせᅉ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬㸬 Fig.
F 2 ࡟ྛ M
MA ⢊ᮎ࠿ࡽస〇ࡋࡓ SP
PS ᮦࡢ◳ࡉࢆࢆ♧ࡍ㸬㸬⣧ Mg SPPS ᮦࡢ◳ࡉࡣࡣ㸪MA ฎ⌮⌮᫬㛫ࡀ㛗ࡃ࡞
࡞ࡿ࡟ࡘࡘࢀ࡚ᚎࠎ࡟
࡟ቑຍࡋ㸪MA ฎ⌮ 16 h ࡢ᫬㸪43 HVVࢆ♧ࡋࡓ㸬Mg-10
0 CaO ⢊ᮎ࠿ࡽస〇ࡋࡓࡓ SPS ᮦࡢ◳◳ࡉ
㸪MA ฎ⌮᫬㛫㛫ࡀ㛗ࡃ࡞ࡿ
ࡿ࡟ࡘࢀ࡚⦆
⦆ࡸ࠿࡟ྥୖ ࡋ㸪ࡣ㸪
50 HV ௨ୖࢆ♧ࡋࡓ㸬Mg
g-20 CaO ⢊ᮎ࠿ࡽస〇⢊ࡋࡓPS ᮦࡢ◳ࡉࡶࡶ㸪⦆ࡸ࠿࡟
࡟ྥୖࡋ㸪MAA ฎ⌮ 16 h ⾜⾜࠺SPࡇ࡜࡛ 100 HVV ௨ୖࢆ♧ࡋࡋࡓ㸬Mg-30 ࠾ࡼࡧ 40 C
CaO
ᮎ࠿ࡽస〇ࡋࡋࡓ SPS ᮦࡢࡢ◳ࡉࡣ㸪MMA ฎ⌮ 2 h ࠿࠿ࡽ⢊ᮎ
4 h ࡟࠿ࡅ࡚ᛴ
ᛴ⃭࡟ྥୖࡋ㸪㸪ࡑࢀ௨ᚋ㸪୍ᐃ್ࢆ♧ࡋ୍ࡋࡓ㸬≉࡟㸪MA ฎ⌮ 8 h㸪Mg-40 CaOC⢊ᮎ࠿ࡽ
ࡽస〇ࡋࡓ SSPS࠸್ 179 HV ࢆ♧ࡋ㸪⣧ Mg
M ࡜ẚ࡭࡚ ⣙ 5ᮦࡣ㸪᭱ࡶ㧗࠸ᡂࡉࢀࡓ㸬ಸࡢቑຍࡀ㐩ᡂF 3 ࡟ CaOO ⢊ᮎࡢῧຍ
ຍ㔞ࢆኚ໬ࡉ
ࡉࡏ㸪MA ฎ⌮⌮ 16
 Fig.
h ⾜ࡗࡓ⢊ᮎ࠿⾜࠿ࡽస〇ࡋࡓ SPS ᮦࡢ X ⥺ᅇᢡࣃࢱ࣮
࣮ࣥࢆ♧♧ࡍ㸬⣧ Mg
g SPS ᮦࡣ㸪Ș-Mg ࡢᅇᅇᢡࣆ࣮ࢡࡢࡳ
ࡳࡀྠᐃᐃࡉࢀࡓ㸬୍
୍᪉㸪CaO ࢆῧῧຍࡋࡓ SPS
S ᮦ࡛ࡣ㸪Ș -Mg
࠾ࡼࡧ CaO ࡢࡢᅇᢡࣆ࣮ࢡ௨
௨እ࡟ MgO ࠾ࡼࡧ CaH
H2 ࡢᢡࣆ࣮ࢡࡀྠ
ྠᐃࡉࢀࡓ㸬ࡇࡢࡼ࠺࡞໬ྜ≀ࡢ⏕ᡂᡂࡣᅇᢡMAA-SPS ࣉࣟࢭࢭࢫ࡟ࡼࡗ࡚
࡚ᅛ┦཯ᛂࡀ
ࡀㄏ㉳ࡉࢀࡿࡇ
ࡇ࡜ࢆ♧♧၀ࡋ࡚࠾ࡾࡾ㸪SPS ᮦࡢࡢᶵᲔⓗ≉ᛶ
ᛶࢆྥୖࡉࡏࡿ
ࡿࡢ࡟ຠຠᯝⓗ࡟ാࡃ
ࡃࡇ࡜ࡀㄆࡵ
ࡵࡽࢀࡓ㸬ࡋ࠿
࠿ࡋ࡞ࡀࡽ㸪MA⢊ᮎ
ᮎ࡜ SPS ᮦᮦࡢ◳ࡉࢆẚ㍑ࡍࡿ࡜ Mg-10
M
࠾ࡼࡧ
ࡧ 20
Ca
aO ࡛ࡣ㸪໬ྜྜ≀ࡢ⏕ᡂ࡟క࠸ SPS ᮦࡢ᪉ࡀ㧗࠸್ᮦ್ࢆ♧ࡋࡓࡀ㸪Mg
g-30 ࠾ࡼࡧ 40
4 CaO ࡛ࡣࡣ㸪⢊ᮎ࡜ྠ➼➼ࡢ್ࢆ♧ࡋࡓ㸬

㻌㻼㼡㼞㼑㻌㻹㼓
㻌㻹㼓㻙㻝㻜㻌㻯㼍㻻㻌㻹㼓㻙㻞㻜㻌㻯㼍㻻㻌㻹㼓㻙㻟㻜㻌㻯㼍㻻㻌㻹㼓㻙㻠㻜㻌㻯㼍㻻

㻝㻜㻜

㻡㻜
㻺㼛
㼛㼚㻌㻹㻭㻌㼜㼡㼞㼑㻌㻹㼓㻌㻿㻼㻿
㻜

㻞

㻠
㻤
㻹㼑㼏㼔㼍㼚㼕㼏㼍㼍㼘㻌㼍㼘㼘㼛㼥㼕㼚㼓㻌㼠㼕㼙㼑㻘㻌㼠㻌㻛
㻛㻌㼔

㻝㻢

Fig.
F 2 Vickerrs hardness oof Mg-x CaO (x=10, 20, 30
0, 40
mass%)m
SPS
S materials fabricated from diffeerent
mechanicalmalloying time.

Fiig. 3 X-ray diffraction paatterns of Mg-x
M
CaO (x==10,20
0, 30, 40 mass%)m
SPS materials fabricatedffrrom
mechanically alloyed 16 h poowders.

4. ⤖ゝ1) CaO ῧຍ㔞㔞࠾ࡼࡧ MAA ฎ⌮᫬㛫ࢆࢆቑຍࡉࡏࡿࡇ
ࡇ࡜࡛⢊ᮎࡢ◳◳ࡉࡣྥୖࡋ
ࡋࡓ㸬≉࡟㸪M
MA ฎ⌮ 16 h ࡢ
Mg-40 CaaO ⢊ᮎࡢ᫬㸪᭱ࡶ㧗࠸್
್ 173.1 HV ࡀࡀᚓࡽࢀ㸪⣧ MMg ࡢ⣙ 4 ಸࡢ್ࢆ♧ࡋಸࡓ㸬SPS ᮦࡢࡢ◳ࡉ࡛ࡶ㸪MMA ฎ⌮ 4 h ௨ᚋ㸪ྠᵝᵝࡢഴྥࢆ♧ ࡋ㸪

− 135 −

㸦ඹྠྠ◊✲ศ㔝㔝㸸」ྜ໬ᶵᶵᵓᏛศ㔝㔝㸧࣊ࢸࣟ⤌⧊࡟㉳ᅉࡍࡍࡿᚤ㔞ඖ⣲⣲⃰໬࡟ࡼࡿࢳࢱࣥ↝⤖ᮦᮦࡢ⭉㣗ᣲືືࡢゎ᫂ᡤ  ᒓ  ᐩᒣᒣ኱Ꮫ኱Ꮫ㝔⌮⌮ᕤᏛ◊✲㒊Ặ  ྡ  ◁⏣⏣ ⪽  ␊ᒣ
ᒣ ㈼ᙪ 㸯㸬┠ ⓗ୍⯡ⓗ࡟ࢳࢳࢱࣥᮦࡣ㸪✵Ẽ୰ࡢỈศ✵ศ࠾ࡼࡧ㓟⣲࡟࡟ࡼࡾ⾲㠃࡟୙
୙ືែ⓶⭷ࢆ
ࢆᙧᡂࡋ㸪ࡇࡢ
ࡢ⓶⭷ࡀෆ㒊ࢆࢆᙉࡃಖㆤࡍ
ࡿࡓࡵ㸪ඃࢀ
ࢀࡓ⪏㣗ᛶࢆ᭷ࡍࡿ㸬㍺㏦㏦ᶵჾࡢ㍍㔞໬໬ࢆ┠ᣦࡋࡓᚤ㔞 Fe ⃰໬ࢳࢳࢱࣥ↝⤖ᮦ
ᮦࢆඹྠ୺◊✲✲⪅࡟ࡼࡾ᪂
ࡓ࡟㛤Ⓨࡉࢀ
ࢀࡓ㸬ࡇࡢᚤ
ᚤ㔞 Fe ⃰໬ࢳࢱࣥ↝⤖ᮦࡣࡣ㸪㧗ᙉᗘ࣭㧗㧗ᘏᛶ࣭ᗮ౯ࡢ㐩ᡂࢆ┠ᣦᣦࡋ࡚࠸ࡿࡀ㸪ࢳࢱࣥᮦᅛ
᭷ࡢᮏ᮶ඃࢀ
ࢀࡓ⪏㣗ᛶࢆ᭷ࡍࡿࡇ࡜ࡀࡀ㔜せ࡞᮲௳࡛
࡛࠶ࡿ㸬ࡑࡇ࡛᪂㛤Ⓨࡢᚤᚤ㔞 Fe ⃰໬ࢳࢳࢱࣥ↝⤖ᮦࡢ
ࡢ⪏㣗ᛶࢆ㟁
Ẽ໬Ꮫⓗ࡟ᐃ
ᐃ㔞໬ࡋ㸪⌧⌧ᅾᕷ㈍ࡉࢀ࡚
࡚࠸ࡿᕤᴗ⏝⣧⣧ࢳࢱࣥᮦᩱ
ᩱࡢࡑࢀ࡜ẚ㍑㍑ࡍࡿࡇ࡜࠾ࡼ
ࡼࡧ᪂㛤Ⓨࡢ
ࡢᚤ㔞 Fe ⃰໬ࢳࢱࣥ↝⤖ᮦ
ᮦࡢ⪏㣗ᛶ࡟ཬࡰࡍ㕲ྵ᭷᭷㔞ࡢᙳ㡪ࢆㄪ
ㄪᰝࡍࡿࡇ࡜ࢆ┠ⓗ࡟ࡋࡓࡓ㸬㸰㸬◊✲᪉ἲ
ἲ
2.1 ヨ ᩱࢱࣥ⢊ᮎ࡜㕲
㕲⢊ᮎࢆ⏝࠸㸪ᡤᐃ㔞ࢆΰྜ
ྜࡋ㸪
ᕷ㈍ࡢࢳࢱ
↝⤖ ᗘ 10073K ࡛⇕㛫ᢲᢲฟἲ࡟ࡼࡾ┤┤ᚄ 7mm ࡢ෇ᰕᙧ≧࡜ࡋࡓ㸬㕲
㕲⢊ᮎ㔞ࢆㄪ
ㄪᩚࡋ㸪㕲ྵ᭷
᭷㔞ࡢ␗࡞ࡿ㕲㕲ᅛ⁐ᙉ໬ࢳࢱࣥᮦᮦࢆస〇ࡋࡓ
ࡓ㸬ࢳࢱࣥ⢊ᮎᮎ༢࿡࡛స〇ࡋࡓヨᩱࢆ Ti-0wt%%Fe ↝⤖ᮦ㸪ࢳࢱࣥ⢊ᮎ࡜࡜㕲⢊ᮎࢆᡤᐃ㔞ΰྜ ࡋ ࡚ స 〇 ࡋ ࡓ ヨ ᩱ ࢆ 㡰 ࡟ Ti-0.2wt%Fe ↝ ⤖ ᮦ 㸪
Ti-0.6wt%Fe ↝⤖ᮦ㸪Ti-22.0wt%Fe ↝⤖⤖ᮦ㸪Ti-4.0wt%%Fe ↝⤖ᮦ࡜ࡋࡓ㸬ࡇࢀࡽࡢヨヨᩱࢆ㟁Ẽ໬ᏛᏛⓗ ᐃ࡟౑⏝⏝ࡍࡿࡓࡵ㸪࣮ࣜࢻ⥺ࢆࢫ࣏ࢵࢺ⁐᥋ࡋ࡚࢚࢚࣏࢟ࢩᶞ⬡࡟ᇙࡵ㎸ࡳ㸪ᅗ 1 ࡟♧ࡍᙧ≧࡟࡟ࡋࡓ㸬ࡍ࡭࡚
࡚ࡢヨᩱࡢ཯ᛂᛂ㠃✚ᅗ 1) ศᴟヨ㦂⏝ Ti ヨᩱᩱᲬ2ࢆ 23.8mm ࡟ࡋࡓ㸬๓ฎฎ⌮࡜ࡋ࡚㸪㟁
㟁ᴟ㠃ࢆ⪏Ỉ◊◊☻⣬࡛ 80 ␒࠿ࡽ
ࡽ 2000 ␒ࡲ࡛㡰ḟ‵ᘧ◊☻☻ࡋࡓᚋ㸪㏿ࡸࡸ࠿࡟࢚ࢳࣝ࢔ࣝࢥ࣮࡛ࣝ
࡛Ὑίࡋࡓ㸬ࡇࡇࡢᚋ㸪㏿ࡸ࠿
࠿࡟࢔ࢭࢺࣥ
࡟ᾐₕࡋ㸪00.3ks 㛫㉸㡢ἼἼὙίࢆ⾜ࡗ࡚
࡚㟁ᴟ࡜ࡋ㸪௨㝆࡟♧ࡍ㟁㟁Ẽ໬Ꮫⓗ ᐃ࡟⏝࠸ࡓ㸬ᐃ
2.2 㟁Ẽ໬ᏛᏛ ᐃࢳࢱࣥᮦࡣࡣ㸪⾲㠃࡟୙ື
ືែ⓶⭷ࢆᙧ
ᙧᡂࡋ㸪ࡇࡢ⓶⓶⭷ࡀෆ㒊ࢆᙉ
ᙉࡃಖㆤࡋ࡚࠸ࡿ㸬ࡑࡇ࡛࡛ࡇࢀࡽࡢヨᩱᩱࡍ࡭࡚ࡢ୙
ືែ⓶⭷ࡀᙧ
ᙧᡂࡍࡿᐃ㟁
㟁఩ࢆ 0V ࡟ᐃᐃࡵ㸪ࡇࡢ㟁఩఩࡟࠾ࡅࡿ࡟୙
୙ືែ⥔ᣢ㟁
㟁ὶᐦᗘ Ipass ࡢࡢ⤒᫬ኚ໬ࢆ ᐃࡋࡓ㸬ᮏᐇ㦂ࡣ඾ᆺⓗⓗ࡞ 3 㟁ᴟἲἲࢆ⏝࠸࡚⾜ࢃࢃࢀ㸪ࡑࡢᵓᡂᡂࡣᜏ ᵴ୰࡟
࡟ヨᩱ㟁ᴟᐊ࡜ⓑ㔠㟁ᴟᐊᐊ࠿ࡽ࡞ࡿᐜ✚✚ 5.0×10-4 m-3
ࡢ H ᆺ㟁ゎゎᵴ㸪୰㛫ᵴ㸪Ag/AgCl(3.33kmol͑m-3KCCl) ↷ྜ㟁ᴟᵴᵴࢆධࢀ㸪ヨᩱᩱ㟁ᴟᐊ࡜↷↷ྜ㟁ᴟᵴࢆ୰
୰㛫ᵴࢆ௓ࡋ
࡚ࣈࣜࢵࢪ࠾
࠾ࡼࡧሷᶫ࡛᥋⥆ࡋࡓ㸬ࡲࡲࡓ㸪ヨᩱ㟁ᴟᴟ㸪ⓑ㔠㟁ᴟ࠾
࠾ࡼࡧ↷ྜ㟁ᴟᴟࢆ࣏ࢸࣥࢩ
ࢩࣙࢫࢱࢵࢺ࡟
࡟ࡑࢀࡒࢀ᥋
⥆ࡋࡓ㸬ࡑࡋ
ࡋ࡚㸪ࣃ࣮ࢯࢼ
ࢼࣝࢥࣥࣆ࣮ࣗࢱ࡟ࡼࡾ࣏
࣏ࢸࣥࢩࣙࢫࢱ
ࢱࢵࢺࢆไᚚ
ᚚࡋ㸪㟁఩࡜㟁㟁ὶᐦᗘࡢᑐᩘ
ᩘ್ࢆ⮬ືグ㘓ࡋࡓ㸬ᮏ㡯
㡯࡛ࡣ㸪㟁఩
఩ࡣࡍ࡭࡚ Ag//AgCl(3.33kmo
mol·m-3KCl) 㟁ᴟᇶ‽࡜ࡋ࡚
㟁
࡚♧ࡋࡓ㸬
ᮏᐇ㦂࡛ࡣ
ࡣ㸪ヨ㦂⁐ᾮ࡜
࡜ࡋ࡚ࢫࢸࣥ
ࣥࣞࢫ㗰ࡢᛂຊ
ຊ⭉㣗๭ࢀ⎔ቃቃୗ࡛࠶ࡿ 2.5M H2SO4 + 00.2M NaCl (pHH= -0.51)Ỉ⁐ᾮࢆ⏝࠸ࡓ㸬ࡇࡢヨ㦂⁐ᾮᾮࢆ ᗘ 298K
K ࡟ಖࡘࡓࡵ
ࡵ࡟㸪298K ࡟ಖಖࡗࡓᜏ ᵴ୰࡟㟁ゎᵴࢆᵴࢆಖᣢࡋࡓ㸬ヨ㦂⁐ᾮࡣ㸪ヨ⣧❅⣲࢞ࢫࢆ
ࢆ⏝࠸༑ศ࡟⬺㓟⣲ࡋࡓ㸬⬺㓟⣲ࡋࡓヨヨ㦂⁐ᾮ࡟ヨヨᩱ㟁ᴟࢆᾐₕₕࡋ㸪1.8ks 㛫㛫ಖᣢࡋࡓ㸬ࡑࡑࡢᚋ㸪࣏ࢸ
ࣥࢩࣙࢫࢱࢵ
ࢵࢺࢆ⏝࠸࡚㸪㟁఩ࢆ 0V ࡟ಖᣢࡋ࡚㸪ࡑࡢ㛫࡟ὶࢀࢀࡿ㟁ὶᐦᗘࢆ ᐃࡋ㸪ࡑࡑࡢ್ࢆᑐᩘ࡛࡛♧ࡋࡓ㸬ᐃ᫬㛫ࡣ 30 ศ࡜ࡋࡓ㸬㸱㸬⤖ ᯝ
ᅗ 2 ࡟ Ti--0wt%Fe ↝⤖⤖ᮦࢆ 0V ࡢᐃᐃ㟁఩࡟タᐃࡋ
ࡋ࡚㸪ࡑࡢ᫬࡟
࡟ὶࢀࡿ୙ື
ືែ⥔ᣢ㟁ὶᐦ
ᐦᗘ Ipass ࡢ⤒᫬᫬ኚ໬ࢆ 3 ᅇศ♧ࡋࡓ㸬㟁
㟁఩ࢆ༳ຍ┤ᚋᚋ࡟ࡣ Ipass ࡀ 2.0A͑m-2 ࡢ㟁㟁ὶᐦᗘࢆ♧ࡍࡍࡀ㸪᫬㛫ࡢ⤒㐣࡟క࠸㸪༢ㄪ࡟ῶᑡࡍ
ࡍࡿഴྥࢆ♧− 136 −

ࡋࡓ㸬1.8ks ⤒㐣ᚋࡣ 0.0223㸪0.027㸪0..030A͑m-2 ࡟ࡑࡑࢀࡒࢀῶᑡࡋࡓ㸬1.8ks 㛫࡛ࡣ㛫
0.01 ಸ
ಸ࡞ࡿഴྥࢆ♧♧ࡋࡓ㸬ࡇࢀ
㟁఩࡟࠾࠸࡚ヨヨᩱ⾲㠃ୖ࡟
࡟୙ືែ⓶⭷ࡀࡀᙧᡂࡋ㸪pH
H= -0.51 ࡢ㐣㓞㓞࡞⎔ቃ࡛ࡶ
ࡶᏳᐃࡋࡓ୙ື
ືែ⓶⭷ࢆᙧ
ࡣ 0V ࡢᐃ㟁ᡂࡋ࡚࠸ࡿ࡜
࡜⪃࠼ࡽࢀࡿ㸬ࡉࡽ࡟ 1.8k
ks ⤒㐣ᚋ௨㝆㝆ࡶ㟁ὶᐦᗘࡢ
ࡢῶᑡഴྥࡣ⥆⥆ࡃࡇ࡜ࡀண
ண᝿ࡉࢀ㸪୙ື
ືែ⓶⭷ࡢ⪏
㣗ᛶྥୖࡀᅗ
ᅗࡽࢀ࡚࠸ࡿ㸬௚ࡢ㕲ྵ᭷᭷㔞ࡢ␗࡞ࡿヨヨᩱ࡟࠾࠸࡚ࡶྠᵝࡢഴྥྥࡀࡳࡽࢀࡓ㸬ࡑࡇ࡛ྛヨᩱ
ᩱࡢ 0V ࡢᐃ㟁఩࡟タᐃࡋ
ࡋ࡚࠿ࡽ 1.8kks ⤒㐣ᚋࡢ୙୙ືែ⥔ᣢ㟁ὶὶᐦᗘ Ipass ࢆࣃࣃ࣓࣮ࣛࢱ࡟㑅㑅ᐃࡋ࡚㸪ࡇ
ࡇࡢࣃ࣓࣮ࣛࢱ
ࢱ࡟ཬࡰࡍ㕲
ྵ᭷㔞ࡢᙳ㡪
㡪࡟ࡘ࠸࡚ㄪ
ㄪᰝࡋࡓ㸬ྛヨᩱࢆ 00V ࡢᐃ㟁఩࡟࡟タᐃࡋ࡚࠿
࠿ࡽ 1.8ks ⤒㐣㐣ᚋࡢ୙ືែ⥔⥔ᣢ㟁ὶᐦᗘ Ipass ࡟ཬࡰࡍࡍ㕲ྵ᭷㔞ࡢᙳ
ᙳ㡪ࢆᅗ 3 ࡟♧ࡍ㸬ࡍ࡭࡚
࡚ࡢヨᩱࡣ㸪୙ືែ⥔ᣢ㟁㟁ὶᐦᗘ Ipass ࡢࡢ್ࡣ 0.023AA͑m-2 ࠿ࡽ 0.0
030A͑m-2 ࡢ⠊⠊ᅖ࡟࡞ࡾ㸪ྛྛヨᩱ࡛」ᩘ
ᅇᐇ㦂ࡋࡓࢹ
ࢹ࣮ࢱ࠿ࡽࡣ෌⌧ᛶࡢࡼ࠸࠸⤖ᯝࡀᚓࡽࢀ
ࢀࡓ㸬ࡲࡓ㸪ࢹࢹ࣮ࢱࡢศᕸ
ᕸ⠊ᅖࢆຍ࠼࡚
࡚♧ࡋࡓࡀ㸪ྛྛヨᩱࡢ୙ື
ែ⥔ᣢ㟁ὶᐦ
ᐦᗘ Ipass ࡣ㝈㝈ࡽࢀࡓ⠊ᅖ࡟ศᕸࡋ࡚࠸
࠸ࡿ㸬ࡉࡽ࡟୙ືែ⥔ᣢ㟁㟁ὶᐦᗘ Ipass ࡣ㕲ྵ᭷㔞ࡀ
ࡀ 0wt%࠿ࡽ
2.0wt%Fe ࡲࡲ࡛ࡢ⠊ᅖ࡛ࡣ
ࡣ㕲ྵ᭷㔞ࡀቑ
ቑຍࡍࡿ࡟క
క࠸ 1.5 ಸ⛬ᗘᗘࡢ୙ືែ⥔ᣢᣢ㟁ὶᐦᗘࡢࡢቑຍࡀぢࡽࢀ
ࢀࡿ㸬୍᪉㸪
㕲ྵ᭷㔞ࡀ 22.0wt%࠿ࡽ 4.0wt%Fe4ࡲ࡛࡛ࡢ⠊ᅖ࡛ࡣ㕲㕲ྵ᭷㔞ࡀቑ
ቑຍࡋ࡚ࡶ୙ື
ືែ⥔ᣢ㟁ὶᐦ
ᐦᗘࡢቑຍࡀࡀぢࡽࢀ࡞࠸㸬ࡇࡢࡇ࡜ࡼࡾ
ࡾࡇࢀࡽࡢヨヨᩱࡢ୙ືែ⓶⓶⭷ࡢ⪏㣗ᛶ࡟
࡟ཬࡰࡍ㕲ྵ
ྵ᭷㔞ࡢᙳ㡪ࡣࡣࢃࡎ࠿࡟࠶ࡿ
ࡿࡀ㸪ࡑࡢᕪ
ᕪ␗ࡣ 0%࠿ࡽ
4%࡛ 1.5 ಸ⛬⛬ᗘ࡛࠶ࡿ㸬

Current density, Ipass / A· m-2

Ti--0wt%Fe
1st run2ndd run
3rd run

0

10

10

-1

10

-2

0

500

1000

1500

2000

Current density after 1.8ks (0V) , Ipass/ A·m-2

1

10

Time, t/ s

10

-1

10

-2

0

1

2

3

4

Content of Fe (wt%)ᅗ 2) ୙ືែ⥔ᣢ㟁㟁ὶᐦᗘࡢ⤒⤒᫬ኚ໬ᅗ 3) ୙ືែ⥔ᣢᣢ㟁ὶᐦᗘ࡟ཬ
ཬࡰࡍ Fe ྵ᭷㔞ࡢࡢᙳ㡪㸲㸬⤖ ㄽ
ᚤ㔞 Fe ⃰໬ࢳࢳࢱࣥ↝⤖ᮦࡣ
ࡣ㸪0V ࡟ಖᣢ
ᣢࡋ࡚ 30 ศ㛫㛫㟁఩ࢆ࠿ࡅࡿ࡜㛤ጞ᫬ࡣࡣ㧗࠸㟁ὶᐦᗘ
ᗘࢆ♧ࡍࡀ㸪
᪂㛤Ⓨࡢᚤࡑࡢᚋᛴ⃭࡟
࡟ῶᑡࡋ࡚ࡺࡃ㸬ࡑࡢ㟁ὶὶᐦᗘࡢ್ࡣ F
Fe ྵ᭷㔞ࡢቑቑຍ࡟ࡘࢀ࡚኱
኱ࡁࡃ࡞ࡿഴഴྥࡀほࡽࢀࡿ
ࡿ㸬್ࡢᕪࡣ
0%࠿ࡽ 4%࡛
࡛ 1.5 ಸ࡛࠶ࡿࡿ㸬ศᴟヨ㦂 ᐃᚋࡢヨᩱᩱ⾲㠃࡟Ꮝ㣗ࡣࡣほࡽࢀ࡞࠸㸬Ⰻዲ࡞඲㠃㠃ᆒ୍⭉㣗ࡢ⭉⭉㣗ᙧែࢆ♧ࡍࡍ㸬㸳㸬ཧ⪃ᩥ⊩⊩S. Sunada, A
A. Takagi, M. Hatakeyama, J. Umeda, L. Li Shufeng, K.
K Kondoh: Corrosion
C
Resisstant Evaluatio
on of Oxygen
Solid-Solutionn Strengthenedd Pure Titanium
m, Chiang Maii Journal of Sciience 43(2016)): 381-392
ศ㔝㸸」ྜ໬
໬ᶵᵓᏛศ㔝)(ඹྠ◊✲ศ

− 137 −

ረᛶຍᕤࢆ฼⏝ࡋࡓ㍍ྜ㔠」ྜᮦᩱࡢ㛤Ⓨ࡜≉ᛶゎᯒ✀ࠎࡢ㈇Ⲵ⤒㊰࡟࠾ࡅࡿ࣐ࢢࢿࢩ࣒࢘ྜ㔠ᅽᘏᯈࡢࡦࡎࡳᣲື
ி㒔኱Ꮫ኱Ꮫ㝔࢚ࢿࣝࢠ࣮⛉Ꮫ◊✲⛉὾ Ꮥஅ1.◊✲┠ⓗ㍍㔞໬ᮦᩱ࡜ࡋ࡚ᮇᚅࡉࢀࡿ࣐ࢢࢿࢩ࣒࢘㸦Mg㸧ྜ㔠ࡣ㸪භ᪉᭱ᐦᵓ㐀ࢆ᭷ࡍࡿ㸬Mg ྜ㔠ᅽᘏᯈ࡛ࡣᙉ࠸ᅽ
ᘏ㞟ྜ⤌⧊ࡀᙧᡂࡉࢀ࡚࠸ࡿࡇ࡜࠿ࡽ㸪ᖖ ࡛ࡣάືྍ⬟࡞ࡍ࡭ࡾ⣔ࡀ㝈ࡽࢀࡿ㸬ࡑࡢࡓࡵ㸪ረᛶኚᙧ࡟ࡣ཮ᬗࡢ
άືࡀ኱ࡁ࡞ᙺ๭ࢆᢸ࠺ࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ[1]㸬୍᪉཮ᬗάື࡟ࡣᴟᛶࡀ࠶ࡾ㸪ࡑࡢάືࡢ኱ࡁࡉࡣຍᕤ᮲௳࡟
ࡼࡗ࡚኱ࡁࡃ␗࡞ࡿ㸬௨ୖࡢࡼ࠺࡞⤖ᬗࣞ࣋ࣝࡢᙉ࠸ኚᙧ␗᪉ᛶ࠿ࡽ㸪ᕧどⓗ࡟ࡶᙉ࠸ኚᙧ␗᪉ᛶࡀⓎ⌧ࡍࡿ㸬
Mg ྜ㔠ࢆ᭷ຠά⏝ࡍࡿࡓࡵ࡟ࡣ㸪ࡑࡢᕧどⓗ࡞ረᛶኚᙧ≉ᛶࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࡀ୙ྍḞ࡛࠶ࡾ㸪ࡑࡢࡓࡵ࡟ࡣ㸪཮ᬗࡢάືࢆ༑ศ࡟⌮ゎࡍࡿࡇ࡜ࡀ㔜せ࡛࠶ࡿ[2-5]㸬
௨ୖࢆ㋃ࡲ࠼࡚ᮏ◊✲࡛ࡣ㸪཮ᬗࡢάືࡀᕧどⓗ࡞ረᛶࡦࡎࡳ࡟୚࠼ࡿᙳ㡪ࢆㄪᰝࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿ㸬᫖ᖺᗘࡢ◊✲[4]࡛ࡣ㸪ᅽᘏ᪉ྥ࡟ணᅽ⦰ࢆ௜୚ࡋࡓࢧࣥࣉࣝ࡟ᑐࡋ࡚ᅽᘏ᪉ྥ࡬ࡢᘬᙇヨ㦂ࢆ⾜࠸㸪ࡑࡢ࡜ࡁࡢᕧどⓗ࡞ᯈཌࡦࡎࡳኚ໬࡜ᚤどⓗ࡞⤖ᬗ᪉఩ኚ໬ࡢ┦㛵ࢆㄪᰝࡋࡓ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ᅽᘏ᪉ྥ࡟ணᅽ⦰ࡋࡓࢧࣥࣉ
ࣝ࡟ᑐࡋ࡚ᅽᘏ┤ゅ᪉ྥ࡬ࡢᘬᙇヨ㦂ࢆ⾜࠸㸪㈇Ⲵ᪉ྥࡢ㐪࠸ࡀኚᙧᣲື࡟ཬࡰࡍᙳ㡪ࢆㄪᰝࡋࡓ㸬
2.◊✲᪉ἲ ᮏ◊✲࡛ࡣ㸪ᙉ࠸ᗏ㠃㞟ྜ⤌⧊ࡀⓎ㐩ࡋࡓᕷ㈍ࡢ AZ31Mg ྜ㔠ᅽᘏᯈ㸦ᯈཌ 1mm㸧ࢆ⏝࠸ࡓ㸬ࡲࡎ኱ᆺࡢヨ㦂∦࡟ᑐࡋ࡚ᅽᘏ᪉ྥ࡟ 6%ࡢᅽ⦰ኚᙧࢆ୚࠼ࡿ㸬⥆࠸࡚ணᅽ⦰ࡉࢀࡓヨ㦂∦ࡢࢤ࣮ࢪ㒊࠿ࡽᅽᘏ┤ゅ᪉ྥ࡟ᑠᆺ
ヨ㦂∦ࢆษࡾฟࡋ㸪ᘬᙇヨ㦂ࢆ⾜ࡗࡓ㸬ᘬᙇኚᙧ୰ࡢ⤖ᬗ᪉఩ኚ໬ࡣ㸪」ྜ໬ᶵᵓᏛศ㔝࡛ᡤ᭷ࡍࡿ SEM-EBSD
ෆ࡛ࡑࡢሙほᐹ࡟ࡼࡾ ᐃࡋࡓ㸬࡞࠾㸪᫂░࡞ EBSD

ᐃࢆ⾜࠺ࡓࡵ㸪ᘬᙇヨ㦂࡟ඛ❧ࡕ 160Υ12 ᫬㛫ࡢ᮲௳࡛↝㕌ࢆ᪋ࡋࡓ㸬3.◊✲⤖ᯝ
ᅗ 1 ࡟㸪SEM ෆᘬᙇヨ㦂࠿ࡽᚓࡽࢀࡓᛂຊ㸫ࡦࡎࡳ᭤⥺ࢆ♧ࡍ㸬᫖ᖺᗘ࡟⾜ࡗࡓணᅽ⦰ᮦࡢᅽᘏ᪉ྥ࡬ࡢᘬᙇ
[4]࡛ࡣ㸪ࢃࡎ࠿࡟ୗ࡟ฝࡢᛂຊ㸫ࡦࡎࡳ᭤⥺ࡀⓎ⌧ࡋࡓࡢ࡟ᑐࡋ࡚㸪ᮏ◊✲࡛⾜ࡗࡓᅽᘏ┤ゅ᪉ྥ࡬ࡢᘬᙇ࡛ࡣ
᫂ࡽ࠿࡟ୖ࡟ฝࡢ᭤⥺ࡀⓎ⌧ࡋ࡚࠾ࡾ㸪ࡲࡓ඲యⓗ࡟ὶືᛂຊࡶᅽᘏ᪉ྥࡢሙྜ࡟ẚ࡭࡚㧗࠸㸬ࡇࡢ⤖ᯝ࠿ࡽ㸪㈇Ⲵ᪉ྥ࡟ࡼࡗ࡚ᛂຊᣲືࡀ኱ࡁࡃ␗࡞ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ᅗ 2 ࡟㸪SEM ෆᘬᙇヨ㦂ࡢࡑࡢሙほᐹ࠿ࡽᚓࡽࢀࡓ IPF ࣐ࢵࣉࢆ♧ࡍ㸬ᘬᙇኚᙧ๓㸦a㸧࡛ࡣ㸪c ㍈ࡀᯈཌ᪉ྥ࡟ᑐࡋ࡚ᆶ┤࡟㓄ྥࡋࡓ⤖ᬗ⢏ࡀᨭ㓄ⓗ࡛࠶ࡿ㸬ࡲࡓ⤖ᬗ⢏ෆ࡟ࡶ཮ᬗ㡿ᇦࡀከᩘぢࡽࢀࡿ㸬ࡇࢀࡣ㸪ணᅽ⦰ኚᙧ᫬࡟άືࡋࡓ཮ᬗ࡟ࡼࡿࡶࡢ࡛࠶ࡿ㸬ࡑࡢᚋᘬᙇኚᙧࡀ㐍⾜ࡍࡿ࡜㸪ᅗ୰ࡢ▮༳࡛♧ࡋࡓ㒊఩ࡢࡼ࠺࡟ c ㍈ࡀᯈཌ᪉ྥ࡟㓄ྥࡋࡓ㡿ᇦࡀࢃࡎ࠿࡟ቑຍࡍࡿ㸬ࡇࢀࡣ㸪཯㌿㈇Ⲵࢆཷࡅࡿࡇ࡜࡛཮ᬗᅇ᚟ࡀ⏕ࡌࡓࡓࡵ࡛࠶ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ࡑࡢ㡿ᇦࡣ㠀ᖖ࡟ᑡ࡞ࡃ㸪ࡲࡓࡑࡢቑຍ⋡ࡶᴟࡵ࡚ᑠࡉ࠸㸬ࡑࡢ⤖ᯝ㸪ࡦࡎࡳ 12%㸦g㸧࡟࠾࠸࡚ࡶ㸪ኚᙧ๓㸦a㸧࡜ẚ࡭࡚ IPF ࣐ࢵࣉ࡟ࡣ኱ࡁ࡞㐪࠸ࡀぢࡽࢀࡎ㸪᪉఩ኚ໬ࡀ⏕ࡌࡓ㡿ᇦࡣ㝈ᐃⓗ࡛࠶ࡿ㸬௨ୖࡢഴྥ
ࡣ㸪άⓎ࡞཮ᬗᅇ᚟ࡀぢࡽࢀࡓᅽᘏ᪉ྥ㈇Ⲵࡢ⤖ᯝ࡜኱ࡁࡃ␗࡞ࡿ㸬ࡇࡢࡼ࠺࡟㸪ணᅽ⦰ࢆ୚࠼ࡓヨ㦂∦࡛ࡣ㸪ᛂຊᣲື࠾ࡼࡧ཮ᬗᅇ᚟ࡢάືᗘ࡟࠾࠸࡚ᴟࡵ࡚ᙉ࠸ኚᙧ␗᪉ᛶࡀ⏕ࡌࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬ࡇࡢഴྥࡣ㸪ඛ⾜◊✲[5]࡛♧ࡉࢀࡓ⤖ᯝ࡜ᐃᛶⓗ࡟୍⮴ࡍࡿ㸬᫖ᖺᗘࡢ◊✲[4]࡟࠾࠸࡚㸪ᅽᘏ᪉ྥ࡬ᘬᙇኚᙧࢆ୚࠼ࡓ㝿࡟ぢࡽࢀࡿ኱ࡁ࡞ᯈཌኚ໬ࡣ㸪㢧ⴭ࡞཮ᬗᅇ᚟࡟㉳ᅉࡍࡿ࡜⪃ᐹࡋࡓ㸬ࡇࡢ⪃ᐹ࡟ᇶ࡙ࡃ࡜㸪ᅽᘏ┤ゅ᪉ྥ࡟ᘬᙇኚᙧࢆ୚࠼ࡓሙྜࡣ཮ᬗᅇ᚟ࡀ࡯࡜ࢇ࡝⏕ࡌ࡞࠸ࡇ࡜࠿ࡽ㸪ᅽᘏ᪉ྥ࡟ᘬᙇኚᙧࢆ୚࠼ࡓሙྜ࡟ẚ࡭࡚ᯈཌኚ໬ࡀᑠࡉࡃ࡞ࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬ࡇࡢ௬ㄝࢆ᳨ドࡍࡿࡓࡵ㸪6%ࡢணᅽ⦰ࢆ୚࠼ࡓᚋ࡟ 10%ࡲ࡛ᘬᙇኚᙧࢆ୚࠼ࡓ㝿ࡢࣛࣥࢡࣇ࢛࣮ࢻ್㸦ᯈᖜࡦࡎࡳ/ᯈཌࡦࡎࡳ㸧ࢆᅗ
3 ࡟♧ࡍ[5]㸬ᅽᘏ┤ゅ᪉ྥࡢሙྜࡣᅽᘏ᪉ྥࡢሙྜ࡟ẚ࡭࡚᫂ࡽ࠿࡟ࣛࣥࢡࣇ࢛࣮ࢻ್ࡀ㧗࠸㸬ࡲࡓࡇࡇ࡛ぢࡽࢀࡿᕪ␗ࡣ㸪ฎዪᮦ࡛ぢࡽࢀࡿᕪ␗࡟ẚ࡭࡚᫂ࡽ࠿࡟኱ࡁ࠸㸬ࡇࢀࡣ㸪ᅽᘏ┤ゅ᪉ྥ࡛ࡣᅽᘏ᪉ྥ࡟ẚ࡭࡚┦ᑐⓗ− 138 −

࡟ᯈཌࡦࡎࡳࡀᑠࡉࡃ㸪ࡲࡓணᅽ⦰࡟ࡼࡗ࡚ࡑࡢᕪ␗ࡀࡉࡽ࡟㢧ᅾ໬ࡋࡓࡇ࡜ࢆ♧ࡋ㸪ୖ㏙ࡢ௬ㄝ࡜ྜ⮴ࡍࡿ㸬௨ୖࡼࡾ㸪Mg ྜ㔠ᅽᘏᯈ࡛ࡣ཮ᬗάື㔞࡟㠃ෆ␗᪉ᛶࡀ⏕ࡌࡿࡇ࡜࡟㉳ᅉࡋ࡚㸪ᯈཌࡦࡎࡳࡢⓎ⏕࡟࠾࠸࡚ࡶ኱ࡁ
࡞㠃ෆ␗᪉ᛶࡀㄏⓎࡉࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬4.ཧ⪃ᩥ⊩[1] Agnew, S.R., and Duygulu, O., Int. J. Plasticity, 21 (2005), 1161̽1193.
[2] Hama, T., and Takuda, H., Int. J. Plasticity, 27 (2011), 1072.
[3] Hama, T., Kariyazaki, Y., Hosokawa, N., Fujimoto, H., and Takuda, H., Mater. Sci. Eng. A., 551 (2012),

209-217.
[4] ὾㸪ᖹᡂ 27 ᖺᗘඹྠ◊✲ᡂᯝሗ࿌᭩㸬[5] Hama, T., Tanaka, Y., Uratani, M., and Takuda, H., Int. J. Plasticity, 82(2016), 283.

බ⛠ᛂຊ /MPaᅽᘏ┤ゅ᪉ྥࡢ⤖ᯝ
f
e
d
c
b

a

b

c

d

e

f

g

ᅽᘏ᪉ྥࡢ⤖ᯝ [4]

a
බ⛠ࡦࡎࡳ

ࣛࣥࢡࣇ࢛࣮ࢻ್

ᅗ 1 ᑠᆺヨ㦂∦࠿ࡽᚓࡽࢀࡓᛂຊ㸫ࡦࡎࡳ᭤⥺㸬

g

ᅽᘏ᪉ྥ

ᅽᘏ┤ゅ᪉ྥ

ᅗ 3 ᘬᙇࡦࡎࡳ 10%࡟࠾ࡅࡿࣛࣥࢡࣇ࢛࣮ࢻ್㸬㉥࡜㟷ࡣࡑࢀࡒࢀ 6%ணᅽ⦰ࢆ୚࠼ࡓヨ㦂∦࠾ࡼࡧฎዪᮦࡢ⤖ᯝ࡛࠶ࡿ㸬ᅗ 2 ᘬᙇヨ㦂୰ࡢ⤖ᬗ᪉఩ኚ໬㸬ᅗ୰ࡢグྕa㹼g ࡣ㸪ᅗ 1 ୰ࡢグྕ࡜ᑐᛂࡍࡿ㸬㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 139 −

䜹䞊䝪䞁䝘䝜䝏䝳䞊䝤䛾༢ศᩓ໬䛻䜘䜛㔠ᒓ⾲㠃䛾ᶵ⬟໬㻌ᮾி኱Ꮫ㻌 ྂ᭶ᩥᚿ1. ⥴ゝ ࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈ㸦CNT㸧ࡣ㧗ᙉᗘ࣭㧗ࣖࣥࢢ⋡㸪㧗⇕ఏᑟ⋡࡜࠸ࡗࡓඃࢀࡓ≉ᛶࢆ᭷ࡍࡿ
ࡇ࡜࠿ࡽ㔠ᒓࡸᶞ⬡࡜ࡢ」ྜ໬࡟ࡼࡿᶵ⬟㌿෗ࡀᮇᚅࡉࢀࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪CNT ࢆῧຍࡍࡿ㝿㸪ࡑࢀࡽࡢ᭱⾲㠃Ⅳ⣲ཎᏊ㛫ࡢ van der Waals ᘬຊ࡟ࡼࡿจ㞟యࢆక࠸㸪CNT ࡣᒁᡤⓗ࡟೫ᅾࡋ࡚ᮦ
ᩱḞ㝗ࢆᙧᡂࡍࡿࡓࡵ࡟ୖグࡢ≉ᛶྥୖࡀᅔ㞴࡛࠶ࡿ㸬ࡇࢀࡲ࡛࡟ᮏ◊✲⪅ࡽࡣ㸪ぶỈᛶ࣭␯Ỉᛶࢆ᭷ࡍࡿ୧ᛶ࢖࢜ࣥ⏺㠃άᛶ๣ࡢ୧ぶ፹ᛶ㸦amphiphilic㸧ࢆ฼⏝ࡋ㸪CNT ࡟ᑐྥ㓄ิࡋࡓぶỈᇶഃ࡛ࡢ+ / -㟁Ⲵࡢ཯Ⓨຊ࡟ࡼࡗ࡚Ỉ⁐ᾮ୰࡟ῧຍࡋࡓ CNT ࡢจ㞟⦆࿴࣭Ꮩ❧༢ศᩓ໬ࢆᐇ⌧ࡋࡓ 1)㸬
ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣୖグࡢ CNT ༢ศᩓỈ⁐ᾮࢆ⏝࠸ࡓ CNT ⿕そ⣧࣐ࢢࢿࢩ࣒࢘(Mg)࠾ࡼࡧ⣧ࢳࢱ
ࣥ(Ti)」ྜ⢊ᮎࢆ‽ഛࡋ㸪ࡇࢀࢆ↝⤖࣭ᢲฟᅛ໬ࡋࡓ CNT ༢ศᩓ㔠ᒓ⢊ᮎᢲฟᮦࡢస〇ࢆヨࡳࡓ㸬ࡑࡢ㝿㸪⢊ᮎ⾲㠃࡟ṧᏑࡍࡿ୧ᛶ࢖࢜ࣥ⏺㠃άᛶ๣ࡢᅛᙧศ⓶⭷ࡢ⇕ศゎ᮲௳ࢆᢳฟࡍ࡭ࡃ㸪⇕㔜㔞ศᯒࢆᐇ᪋ࡋࡓ㸬ࡲࡓస〇ࡋࡓ CNT ⿕そ」ྜ⢊ᮎ࡟࠾ࡅࡿ CNT ศᩓ≧ែ࡞ࡽࡧ࡟ᢲฟᮦࡢᶵᲔ
ⓗ≉ᛶࡢ CNT ྵ᭷㔞౫Ꮡᛶ࡟ࡘ࠸࡚ㄪᰝࡋࡓ㸬
2. ᐇ㦂᪉ἲ
2.1 ୧ᛶ࢖࢜ࣥ⏺㠃άᛶ๣࡟ࡼࡿ CNT ⿕そ」ྜ⢊ᮎࡢస〇+- +- +- ++- +- +- + ཎᩱ⢊ᮎ࡜ࡋ࡚ձ࢔ࢺ࣐࢖ࢬ〇⣧ Mg ⢊ᮎBundled-MWCNT
㸦ᖹᆒ⢏Ꮚᚄ㸹155ȝm㸧㸪ղྠ⣧ Ti ⢊ᮎ㸦ྠ㸹
29.6ȝm㸪ྠ 99.1%㸧㸪ճࢫ࣏ࣥࢪ⣧ Ti ⢊ᮎ
Splitting
686.3ȝm㸪ྠ 99.5%㸧ࢆ⏝࠸ࡓ㸬CNT ༢ศᩓ
Zwitterionic⁐ᾮࡣከᒙ CNT㸦┤ᚄ㹼50nmĳ㸪඲㛗㹼surfactant (Z-3-18)
ࢆ 3-㸦N,N-ࢪ࣓ࢳࣝࢫࢸ࢔ࣜࣝ࢔ࣥࣔࢽ࢜㸧
Attraction- + - + - + - +Head;ࣟࣃࣥࢫࣝ࣍ࢿ࣮ࢺࢆ୺ᡂศ࡜ࡍࡿ୧ᛶ࢖࢜hydrophilic++- + +⏺㠃άᛶ๣ࢆྵࡴỈ⁐ᾮ୰࡟ 3mass%ῧຍࡋ㸪Tail;900s 㛫ࡢ㉸㡢Ἴ᣺ື࡟ࡼࡾᨩᢾ࣭ศᩓฎ⌮ࢆhydrophobic
Un-bundled CNT
ࡋࡓ㸬Fig.1 ࡟⏺㠃άᛶ๣࡟ࡼࡿ CNT จ㞟యCH3 O㸦bundled CNTs㸧ࡢᏙ❧༢ศᩓ໬ᶵᵓࢆᶍᘧ
S ON࡟♧ࡍ㸬␯Ỉᛶࢆ᭷ࡍࡿ Tail 㒊ࡣ CNT ࡜⤖
CH3 Oࡋ㸪ぶỈᛶࡢ Head 㒊ࡣࡑࢀ࡜ᑐྥ㓄ิࡍࡿ㸬
C-18 (tail)ࡑࡢ㝿㸪Head 㒊࡟㸩/㸫ࡢ㟁Ⲵࢆ᭷ࡍࡿࡇ࡜
Headgroupୖ㏙ࡋࡓ van der Waals ຊࢆ㉺࠼ࡿ㟼㟁ᘬຊ
Fig.1 Schematic illustration of wet process in formation ofస⏝ࡋ㸪CNT ྠኈࢆᘬࡁ㞳ࡍࡇ࡜࡛Ꮩ❧ศᩓ
un-bundled CNTs by surface active agent.
ែ㸦un-bundled CNT㸧ࢆᙧᡂࡍࡿ㸬ᮏ⁐ᾮ୰ୖグࡢྛ⢊ᮎࢆ 5 ศ㛫ᾐₕࡋࡓᚋ㸪ᜏ ᵴෆ࡛ 353K ࡟࡚ 14.4ks 㟼⨨ࡍࡿࡇ࡜࡛⢊ᮎ࡟ྵࡲࢀࡿỈ
ศࢆ⵨Ⓨ࣭㝖ཤࡋࡓ㸬࡞࠾㸪⢊ᮎྠኈࡢ↝⤖ᛶࢆ㜼ᐖࡍࡿ⢊ᮎ⾲㠃ࡢṧᏑ୧ᛶ࢖࢜ࣥศᏊ⭷ࡢ⇕ศゎ᮲௳ࢆᢳฟࡍࡿࡓࡵ㸪♧ᕪ⇕㔜㔞ศᯒ࡟ࡼࡾᅛᙧ⓶⭷ࡢ⇕ศゎᣲືࢆㄪᰝࡋࡓ㸬+ -+ -+ -++ -+ -+ -++ -+ -+ -++ -+ -+ -+2.2 CNT ༢ศᩓ㔠ᒓ⢊ᮎᢲฟᮦࡢస〇࠾ࡼࡧ≉ᛶホ౯ୖグࡢ CNT ⿕そ⢊ᮎࢆෆᚄ ĳ42mm ࡢ㯮㖄ᆺ࡟඘ሸࡋ㸪ᨺ㟁ࣉࣛࢬ࣐↝⤖(SPS)⿦⨨࡟タ⨨ࡋࡓᚋ㸪1×10-4Pa ௨ୗࡢ┿✵ᗘ࡛ᅽຊ 30MPa㸪ಖᣢ᫬㛫 1.8ks ࡟࡚↝⤖ࢆ᪋ࡋࡓ㸬↝⤖ ᗘ࡟㛵ࡋ࡚Mg㸹997K㸪Ti㸹1073K ࡜ࡋࡓ㸬ྛ↝⤖యࢆ Ar ࢞ࢫ୰࡛ຍ⇕ࡋࡓᚋ㸪┤ࡕ࡟⇕㛫ᢲฟᅛ໬㸦┤ᚄ ĳ7mm
㸭ᢲฟẚ㸸37㸧ࢆ᪋ࡋࡓ㸬ᶵᲔຍᕤ࡟ࡼࡾ┤ᚄ 3mm㸪ᶆⅬ㛫㊥㞳 10mm ࡢᖹ⾜㒊ࢆ᭷ࡍࡿᘬᙇヨ㦂∦ࢆస〇ࡋ㸪ṍ㏿ᗘ 5×10-4 s-1 ࡛ᖖ ࡟࡚ᘬᙇヨ㦂ࢆ⾜ࡗࡓ㸬࡞࠾㸪ྛᢲฟᮦ࡟ྵࡲࢀࡿ CNT 㔞࡟㛵ࡋ࡚ࡣ඲Ⅳ⣲㔞ࡢศᯒ್ࢆ⏝࠸ࡓ㸬
3㸬 ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ ๓㏙ࡢ CNT ༢ศᩓỈ⁐ᾮ࠾ࡼࡧ CNT ࢆῧຍࡍࡿ๓ࡢ⏺㠃άᛶ๣ศᩓᾮࢆ஝⇱ࡋ࡚Ỉศࢆ㝖ཤࡋ
ࡓᚋ㸪Ar ࢞ࢫ㞺ᅖẼ୰࡟࡚♧ᕪ⇕㔜㔞ศᯒࢆ⾜ࡗࡓ⤖ᯝࢆ Fig.2 ࡟♧ࡍ㸬࠸ࡎࢀ࡟࠾࠸࡚ࡶ 523K
௜㏆࠿ࡽ㔜㔞ῶᑡࡀ㛤ጞࡋ㸪713K ௜㏆ࡲ࡛࡯ࡰ┤⥺ⓗ࡟పῶࡋࡓᚋ㸪࡯ࡰ୍ᐃ್ࢆ♧ࡋࡓ㸬ୖグࡢ⏺㠃άᛶ๣ศᩓᾮ࡟ Cu ⢊ᮎࢆᾐₕ࣭኱Ẽ஝⇱ᚋ㸪┿✵㞺ᅖẼ୰࡛ 823㹼1073K ࡟࡚ 3.6ks ຍ⇕ࡋࡓヨᩱ࡟࠾ࡅࡿ඲Ⅳ⣲㔞ศᯒ⤖ᯝࢆ Fig.3 ࡟♧ࡍ㸬኱Ẽ஝⇱ᚋ㸦as-dipped㸧࡛ࡣ⏺㠃άᛶ๣࡟㉳
ᅉࡍࡿ 0.066%ࡢⅣ⣲ᡂศࢆྵࡴࡀ㸪823K ௨ୖ࡛ࡣ 0.003㹼0.007%࡜ῶᑡࡋ࡚࠾ࡾ㸪ࡑࢀࡽࡢ್ࡣ
ཎᩱ⢊ᮎࡢⅣ⣲㔞㸦0.004%㸧࡜࡯ࡰྠ➼࡛࠶ࡗࡓ㸬௨ୖࡢ⤖ᯝࡼࡾ⢊ᮎ⾲㠃࡟ṧᏑࡍࡿ୧ᛶ࢖࢜ࣥ
ศᏊ⭷ࡢ⇕ศゎ࡟ࡣ 713K ௨ୖࡢ ᗘᇦ࡛ࡢຍ⇕ࡀᚲせ࡛࠶ࡿ࡜࠸࠼ࡿ㸬ḟ࡟㸪⇕ฎ⌮࡟ࡼࡿ CNT ࡬ࡢᦆയࢆㄪᰝࡍ࡭ࡃ㸪ຍ⇕㞺ᅖẼ࠾ࡼࡧ ᗘࡢᙳ㡪ࢆㄪᰝࡋࡓ㸬ඛࡎ㸪MWCNT ༢యࢆ኱Ẽ㞺ᅖẼ࡛ 823K ࡟࡚ 1.8ks ຍ⇕ࡋࡓ࡜ࡇࢁ㸪㓟໬࡟ࡼࡾ CNT ࡢ⫧኱໬࠾ࡼࡧᵓ㐀ኚ໬ࡀ⏕ࡌࡓ㸬ࡇࢀ࡟ᑐࡋ࡚ Ar ࢞ࢫ࠾ࡼࡧ┿✵㞺ᅖẼ୰࡛⇕ฎ⌮ࢆ᪋ࡋ㸪࣐ࣛࣥศගศᯒࢆ
⾜ࡗࡓ࡜ࡇࢁ㸪 CNT ᅛ᭷ࡢࢫ࣌ࢡࢺ࣒ࣛࢆ᭷ࡋ࡚࠾ࡾ D-band ࡜ G-band ࡢࣆ࣮ࢡᙉᗘẚࡶ㢧ⴭ࡟ኚ໬ࡋ࡚࠸࡞࠸ࡇ࡜࠿ࡽୖグࡢ⇕ฎ⌮࡟ࡼࡿ CNT ࡢᵓ㐀ኚ໬ࡣ⏕ࡌ࡚࠸࡞࠸࡜⪃࠼ࡽࢀࡿ㸬࡞࠾
㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾ほᐹ࡟࠾࠸࡚ࡶྠᵝࡢ⤖ᯝࢆ☜ㄆࡋ࡚࠸ࡿ㸬CNT ༢ศᩓỈ⁐ᾮ࡟ᾐₕ࣭஝⇱ࡋࡓ− 140 −

120

Total carbon content (mass%)Mg ⢊ᮎ࡜㸪⥆࠸࡚Ỉ⣲࢞ࢫ㞺ᅖẼ୰࡛ 873K ࡟࡚ 3.6ks ⇕ฎ⌮ࡋࡓ⢊ᮎࡢ⾲㠃ᛶ≧ࢆ Fig.4 ࡟♧ࡍ㸬(a)࡟ぢࡿࡼ࠺࡟Ỉ⁐ᾮ୰࡟Ꮩ❧༢ศᩓࡋࡓ CNT ࡣࡑࡢ≧ែ࡛ Mg ⢊ᮎ⾲㠃࡟㌿෗ࡉࢀ࡚࠾ࡾ㸪ࡑࢀࡣ஝⇱࣭⇕ฎ⌮ᚋ(b)࡟࠾࠸࡚ࡶ⥔ᣢࡉࢀ࡚࠸ࡿ㸬ḟ࡟㸪CNT ༢ศᩓ Ti ⢊ᮎᢲฟᮦࡢᘬᙇヨ㦂⤖ᯝ࡟࠾ࡅࡿᛂຊ㸫ṍ⥺ᅗࢆ Fig.5 ࡟♧ࡍ㸬0.16mass%ࡢ CNT ࢆྵࡴࡇ࡜࡛ࢫ࣏ࣥࢪ Ti ⢊ᮎᢲฟᮦࡢᘬᙇᙉࡉࡣ↓ῧຍᮦ࡟ẚ࡭࡚⣙ 130MPa ࡢቑຍࢆ♧ࡋ㸪ࡲࡓ◚᩿ఙࡧࡣ㢧ⴭ࡟పୗࡋ࡚࠸࡞࠸㸬⤖ᬗ⢏ᚄࢆẚ㍑࡜ࡋࡓ࡜ࡇࢁ㸪CNT ྵ᭷ᮦ࡛ࡣ⤖ᬗ⢏ࡢᚤ⣽໬ࡀ☜ㄆࡉࢀ࡚࠾ࡾ㸪CNT ࡬ࡢᢲฟ᫬ࡢṍᑟධ࣭⵳✚࡟ࡼࡿືⓗ෌⤖ᬗࡢಁ㐍࡜ CNT ࡟ࡼࡿ pinning ࡟ࡼࡿ⢏ᡂ㛗ࡢᢚไຠᯝࡀ⪃࠼ࡽࢀࡿ㸬ᘬᙇヨ㦂∦ࡢ◚᩿㠃࡟࠾࠸࡚༢ศᩓ CNT ࡜ඹ࡟㸪ᚤ⣽࡞ TiC ⢏Ꮚࡀほᐹࡉࢀ࡚࠾ࡾ㸪ୖグࡢᙉᗘྥୖࡣ୧⪅ࡢ」ྜศᩓᙉ໬࡟ࡼࡿࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬
Heating rate; 10K/min.

TGA (%)

100
80

Surfactant filmwith CNTs

60
40
20

Surfactant film
without CNTs

in Ar

0
373

573

773

Heating ratio; 20K/min.
Heating time; 3.6ks (in vac.)

0.07
0.06
0.05
0.04
0.03
0.02
0.01
0

973

As-dipped

823K

873K

1073K

Raw powder

Fig.3 Carbon content analysis of as-dipped Cu
powder and heated at 823~1073K in vacuum.

Temperature, T/K
 Fig.2 TGA profiles of surfactant films with andwithout CNTs in heating up to 973K in Ar gas.

800
700

(b) Annealed at 873K in H22

H/E fine Ti with CNTs

600
Stress, 䃢 / MPa(a) As-coated Mg powderAs
As-coated

H/E sponge Ti
with CNTs

500
400
300

TiC

H/E sponge Ti

CNTs
CNTs

200
100
0
0.00

500nm
500nm

500nm
500nm

Fig.4 SEM on as-dipped Mg powder coated with
un-bundled CNTs (a) and annealed at 873K in H2 gas.

0.10

0.20

0.30

0.40

Strain, e

Fig.5 Stress-strain curves of P/M extruded Ti
composites with CNTs and fractured surface of tensile
test specimen.

4. ⤖ゝ୧ᛶ࢖࢜ࣥ⏺㠃άᛶ๣࡟ࡼࡿ CNT ༢ศᩓ໬ࣉࣟࢭࢫࢆ⏝࠸࡚ CNT ⿕そ㔠ᒓ⢊ᮎࢆస〇ࡋ㸪ࡑࡢ⢊య≉ᛶ࡞ࡽࡧ࡟ᢲฟᮦࡢㅖ≉ᛶࢆホ౯ࡋࡓ㸬ඛࡎ㸪㔠ᒓ⢊ᮎ࡬ࡢ CNT ศᩓ⿕そ࡟㛵ࡋ࡚ࡣ㸪୧ᛶ࢖࢜ࣥ⏺㠃άᛶ๣࡟ࡼࡿ㸩/㸫㟁Ⲵࡢ㟼㟁ᘬຊࢆ౑⏝ࡋࡓỈศᩓࣉࣟࢭࢫ࡟ࡼࡿ CNT ࡢ༢ศᩓ໬
᪉ἲ࡟ࡼࡗ࡚ CNT จ㞟యࡢゎᾘ࡟ᡂຌࡋࡓ㸬㠀㓟໬㞺ᅖẼ࡟࡚ 713K ௨ୖ࡛ຍ⇕ࡍࡿࡇ࡜࡛ CNT
࡬ࡢ⇕ᦆയࢆ୚࠼ࡎ㸪ᅛᙧศᏊ⭷ࢆศゎ࡛ࡁࡿ࡜ඹ࡟ᢲฟᮦ࡟࠾ࡅࡿ༢ศᩓ CNT 」ྜ໬࡟ࡼࡿຊ
Ꮫ≉ᛶࡢྥୖࢆ☜ㄆࡋࡓ㸬ࡑࡢ㝿ࡢᙉ໬┦࡛࠶ࡿ CNT ࡜ Ti ⣲ᆅࡢ⏺㠃࡛ࡢᛂຊఏ㐩ࡣ୧⪅ࡢ཯ᛂ⏕ᡂ≀࡛࠶ࡿ TiC ࢆ௓ࡋ࡚⏕ࡌࡿࡇ࡜᫂ࡽ࠿࡟ࡋࡓ㸬ཧ⪃ᩥ⊩(1) B. Fugetsu, W. Han, N. Endo, Y. Kamiya, and T. Okuhara, Chem. Lett., 34 (2005) 1218.
(2) ᑠᯘṊ ௚, 㖡࡜㖡ྜ㔠, 42-1, pp217-228, 2003.

㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛ㸧

− 141 −SPS ᡂᙧࡋࡓ Al/cBN 」ྜᮦᩱࡢ⇕ఏᑟ⋡࡟ཬࡰࡍ cBN ࡢࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࡢᙳ㡪(ᆅ⊂)኱㜰⏘ᴗᢏ⾡◊✲ᡤ ≀㉁࣭ᮦᩱ◊✲㒊㛗Ỉෆ ₩1㻌 㻌 ⥴ゝ㉸ /6, ࡢ㧗㞟✚໬࣭㧗㏿໬࡟క࠸㸪ᑠᆺ㟁Ꮚᶵჾࡢෆ㒊Ⓨ⇕࡟ࡼࡿ㉸ /6, ࢳࢵࣉ⮬యࡢㄗືసࡀ㸪㏆ᖺ῝้࡞ၥ㢟࡜࡞ࡾࡘࡘ࠶ࡿ㟁Ꮚᶵჾࡢ ᗘୖ᪼ࢆᢚ࠼ࡿ࡟ࡣ㸪ᾘ㈝㟁ຊࢆᑠࡉࡃࡍࢀࡤⰋ࠸ࢃࡅ࡛࠶ࡿࡀ㸪ᐇ㝿࡟ࡣ㸪ᶵჾࡢᑠᆺ
໬࡜㧗ᶵ⬟໬ࡀྠ᫬࡟せồࡉࢀࡿࡓࡵ㸪⤖ᯝⓗ࡟ᶵჾࡢ༢఩య✚ᙜࡓࡾࡢⓎ⇕ᐦᗘࡀቑࡋ㸪ྛ㒊ࡢ ᗘୖ᪼ࢆᣍ࠸࡚࠸
ࡿ. ࡋࡓࡀࡗ࡚㸪㧗⇕ఏᑟᛶࢆ᭷ࡍࡿᨺ⇕ᮦᩱࡢ㛤Ⓨࡣᴟࡵ࡚㔜せ࡞ㄢ㢟࡜࡞ࡾࡘࡘ࠶ࡿ. ࡲࡓࡇࢀ࡟ຍ࠼࡚㸪⮬ື㌴⏘ᴗࡢศ㔝࡟࠾࠸࡚ࡶ㸪LED ࣊ࢵࢻࣛ࢖ࢺࡢᬑཬ㸪ࡉࡽ࡟ࡣ㸪ࣁ࢖ࣈࣜࢵࢻ㌴ࡸ㟁Ẽ⮬ື㌴ࡢືຊ⏝࣮ࣔࢱ࣮ࡢᑠᆺ㧗ฟຊ໬ࡢࡓࡵ࡟ࡶ㸪㧗⇕ఏᑟᮦᩱࡢ᪩ᮇ㛤Ⓨࡀᙉࡃᮃࡲࢀ࡚࠸ࡿ㸬ᡃࠎࡣ᭱㏆㸪㧗⇕ఏᑟ⋡(Ȝ㸻200㹼1300 W/mK)࡜ప⇕⭾ᙇಀᩘ(Į㸻4.8×10㸫6) ࢆేࡏᣢࡘ 1㸪2)㸪❧᪉ᬗ❅໬࣍࢘⣲(cBN)⢊ᮎࢆ㔠ᒓ୰࡟ศᩓࡋࡓ㸪cBN ⢏Ꮚศᩓᆺ㔠ᒓᇶ」ྜᮦᩱ 3)ࢆᨺ㟁ࣉࣛࢬ࣐↝⤖ἲ(SPS)4-7)ࢆ⏝࠸࡚ᡂᙧࡍࡿࡇ࡜࡟ࡼࡾ㸪ᨺ⇕ᛶ࡟ඃࢀࡓ㔠ᒓᇶ」ྜᮦᩱࡢ㛤Ⓨࢆヨࡳࡓ㸬8-19)㸬๓ሗ࡟࠾࠸࡚ࡣ㸪SPS ᡂᙧ᮲௳ࡀ Al/cBN 」ྜᮦᩱࡢ⤌⧊ࡸᨺ⇕≉ᛶ࡟ཬࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿ࡜࡜ࡶ࡟㸪Al-45 vol%cBN 」ྜᮦᩱ࡟࠾࠸࡚㸪305 W/mK ࡢ⇕ఏᑟ⋡ࡀᚓࡽࢀࡿࡇ࡜
ࢆሗ࿌ࡋࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪༢୍⢏Ꮚᚄ(ࣔࣀ࣮ࣔࢲࣝ)ࡢ඘ሸ⢏Ꮚࢆ⏝࠸ࡓሙྜ㸪඘ሸ⢏Ꮚࡢయ✚ศ⋡ࡀ 45㸣ࢆ㉺࠼ࡿ࡜㸪」ྜᮦᩱࡢ┦ᑐᐦᗘࡢῶᑡ࡟ࡼࡾ⇕ఏᑟࡀపୗࡍࡿഴྥࡀㄆࡵࡽࢀ࡚࠸ࡿ㸬 ᮏ◊✲࡛ࡣ㸪࣐ࢺࣜࢵࢡࢫ࡜ࡋ࡚ Al ࢆ㸪඘ሸ⢏Ꮚ࡜ࡋ࡚ 2 ✀㢮ࡢ⢏Ꮚᚄࢆ᭷ࡍࡿ cBN ⢊ᮎࢆࡑࢀࡒࢀ㑅ᢥࡋ㸪๓ሗྠᵝ࡟㸪ᣢ⥆ᆺᅛ-ᾮඹᏑ≧ែࢆ฼⏝ࡋࡓ SPS ᡂᙧἲ 15㸪17㸪19)ࢆ⏝࠸࡚㸪 Al/cBN 」ྜᮦᩱࢆᡂᙧࡋ㸪cBN ࡢࣂ࢖࣮ࣔࢲ
ࣝ࡞⢏ᗘศᕸࡀ」ྜᮦᩱࡢ┦ᑐᐦᗘࡸ⇕ఏᑟ⋡࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚ㄪ࡭ࡓࡢ࡛ሗ࿌ࡍࡿ㸬2  ᐇ㦂᪉ἲ ฟⓎᮦᩱ࡜ࡋ࡚ࡣ㸪2 ✀㢮ࡢ❧᪉ᬗ❅໬࣍࢘⣲(cBN)⢊ᮎ(ISBN-E㸪ᖹᆒ⢏Ꮚᚄ 390 ȝm㸪࠾ࡼࡧ㸪39 ȝm㸪࠸ࡎࢀࡶࢺ
࣮࣓࢖ࢲ࢖ࣖ(ᰴ)〇)ࢆ඘ሸ⢏Ꮚ࡜ࡋ࡚⏝࠸ࡓ㸬ࡲࡓ㸪࣐ࢺࣜࢵࢡࢫ⏝ࡢฟⓎᮦᩱ࡜ࡋ࡚ࡣ㸪⣧ Al ⢊ᮎ(99.9 㸣, 㸫45 ȝm,ࣄ࢝ࣜ⣲ᮦᕤᴗ(ᰴ)〇)㸪ཬࡧ㸪Al-5 mass㸣Si ྜ㔠⢊ᮎ(㸫45 ȝm. ࣄ࢝ࣜ⣲ᮦᕤᴗ(ᰴ)〇)ࢆ⏝࠸ࡓ㸬⏝࠸ࡓ⣲⢊ᮎࡢእほࡢ SEM ෗┿ࢆ Fig㸬1 ࡟♧ࡍ㸬⢏Ꮚᙧ≧ࡣ㸪cBN ⢊ᮎࡣ⢒⢏㸪⣽⢏ඹ࡟ሢ≧࡛࠶ࡾ㸪⣧ Al ⢊ᮎ࠾ࡼࡧ Al-5 mass㸣Si ྜ㔠⢊ᮎࡣ⌫≧࡛࠶ࡗࡓ㸬࡞࠾㸪⣧ Al ⢊ᮎࡢ⇕ఏᑟ⋡ࡀ 210W/mK1㸧࡛࠶ࡿࡢ࡟ᑐࡋ㸪Al-5 mass%Si ྜ㔠⢊ᮎࡢ⇕ఏᑟ⋡ࡣ 163 W/mK ࡜ప࠸ࡓከ㔞ࡢ౑⏝ࡣ」ྜᮦᩱࡑࡢࡶࡢࡢ⇕ఏᑟ⋡ࢆపୗࡉࡏࡿྍ⬟ᛶࡀ࠶ࡿ. ᮏ◊✲࡟࠾࠸࡚ࡢ Al-Si ྜ㔠⢊ᮎࡢᙺ๭ࡣ㸪ࡵ 1㸧㸪ᴟᑡ㔞ࡢᾮ┦ࢆྵ᭷ࡍࡿᅛ-ᾮඹᏑ≧ែࢆ⥔ᣢࡍࡿࡇ࡜࡛࠶ࡿ࠿ࡽከ㔞࡟౑⏝ࡍࡿᚲせᛶࡣㄆࡵࡽࢀ࡞࠸㸬ࡋࡓࡀࡗ࡚,࣐ࢺࣜࢡࢫ⢊ᮎ࡜ࡋ࡚ࡣ㸪⣧ Al ⢊ᮎ࡜ Al-Si ྜ㔠⢊ᮎࢆయ✚ẚ࡛ 9㸸1 ࡢ๭ྜ࡛ΰྜࡋࡓΰྜ⢊ᮎࢆ⏝࠸ࡓ㸬 ࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࢆ᭷ࡍࡿ cBN ⢊ᮎࡢΰྜẚࡣ㸪ḟࡢࡼ࠺࡟Ỵᐃࡋࡓ㸬኱⢏Ꮚ࡜ᑠ⢏Ꮚࢆΰྜࡋࡓ㸰ᡂศ⢏Ꮚ඘ሸᒙࡢ✵㝽⋡ࢆΰྜศ⋡࡜ྛ⢏Ꮚࢆ༢⊂࡛඘ሸࡋࡓ㝿ࡢ✵㝽⋡࠿ࡽ᥎ᐃࡍࡿࡓࡵ࡟㸪௨ୗࡢ㸪Furnas ࣔࢹࣝᘧ 20)ࡀᥦ᱌ࡉࢀ࡚࠸ࡿ㸬ࡇࡢࣔࢹ࡛ࣝࡣ㸪ձᑠ⢏Ꮚࡣ኱⢏Ꮚࡼࡾ඘ศᑠࡉ࠸㸪ղ኱ᑠ⢏Ꮚࡢ⢏Ꮚᐦᗘࡀ➼ࡋ࠸㸪ճ኱⢏Ꮚ㛫ࡢ✵㝽ࢆᑠ⢏Ꮚࡀᇙࡵࡿ࡜௬ᐃࡋ࡚ḟᘧ(1)ࡀᚓࡽࢀࡿ㸬H 1

1  H1Sv1(1)

ྠᵝ࡟㸪ᑠ⢏Ꮚ㛫࡟኱⢏Ꮚࡀΰᅾࡍࡿ࡜⪃࠼ࡿ࡜ḟᘧ(2)ࡀᚓࡽࢀࡿ㸬− 142 −

H 1

1 H2
1  Sv1  H 2

(2)

ࡇࡇ࡛㸪
İ1㸸኱⢏Ꮚࢆ༢⊂࡛඘ሸࡋࡓ㝿ࡢ✵㝽⋡
İ2㸸ᑠ⢏Ꮚࢆ༢⊂࡛඘ሸࡋࡓ㝿ࡢ✵㝽⋡㸪
Sv1㸸ΰྜ⢏Ꮚ୰ࡢ኱⢏Ꮚࡢయ✚ศ⋡࡛࠶ࡿ࡛࠶ࡿ㸬
Furnas ࡣ㸪ࡇࢀࡽࡢᘧ(1)㸪(2)࡛⟬ฟࡋࡓ 2 ࡘࡢ✵㝽⋡ࡢ࠺ࡕ㸪኱ࡁ࡞᪉ࢆ⏝࠸ࡿࡇ࡜ࢆᥦ᱌ࡋ࡚࠸ࡿ㸬ᮏ◊✲࡛⏝࠸
ࡓ 2 ✀㢮ࡢ cBN ⢊ᮎࢆ࣓ࢫࢩࣜࣥࢲ࣮࡟඘ሸࡋ㸪100 ᅇࡢࢱࢵࣆࣥࢢࢆ⾜ࡗࡓ㝿ࡢ✵㝽⋡ࡣ㸪ࡑࢀࡒࢀ㸪İ1㸻39.46 㸣㸪
İ2㸻43.86 㸣࡛࠶ࡗࡓ㸬ࡇࢀࡽࡢ್ࢆ⏝࠸࡚ΰྜ⢊ᮎࡢ✵㝽⋡ࢆィ⟬ࡋࡓ⤖ᯝࢆ Fig㸬2 ࡟♧ࡍ㸬኱⢏Ꮚࡢΰྜศ⋡ 73.21
vol㸣(ᑠ⢏Ꮚࡢΰྜศ⋡ 26.79 vol㸣)࡟࠾࠸࡚㸪᭱ᑠࡢ✵㝽⋡ 17.31 㸣ࡀᚓࡽࢀࡿ㸬௨ୖࡼࡾ㸪ᮏ◊✲࡛ࡣ㸪2 ✀㢮ࡢ cBN⢊ᮎ⢏Ꮚࡢΰྜศ⋡ࢆ㸪኱⢏Ꮚ(┤ᚄ 390 ȝm)㸸ᑠ⢏Ꮚ(┤ᚄ 39 ȝm)㸻73.21㸸26.79 ࡜ࡋࡓ㸬 」ྜᮦᩱࡢᡂᙧࡣ௨ୗࡢᵝ࡟⾜ࡗࡓࠋࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢస〇⏝࡟ࡣ㸪๓㏙ࡢ㓄ྜẚ࡛ΰྜࡋࡓ 2 ✀㢮ࡢ cBN⢊ᮎࡢΰྜయ(⢏Ꮚᚄ 390 ȝm+⢏Ꮚᚄ 39 ȝm)㸪⣧ A㹪⢊ᮎ㸪࠾ࡼࡧ㸪Al-5 mass%Si ྜ㔠⢊ᮎࢆ㸪cBN య✚ศ⋡ࡀ඲యࡢ
45㹼70 vol㸣࡜࡞ࡿࡼ࠺࡞㓄ྜẚ࡛ΰྜࡋࡓΰྜ⢊ᮎࢆ⏝ពࡋࡓ㸬ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱࡢస〇⏝࡟ࡣ㸪኱⢏Ꮚᚄࡢ cBN⢊ᮎ(⢏Ꮚᚄ 310 ȝm)㸪⣧ A㹪⢊ᮎ㸪࠾ࡼࡧ㸪Al-5 mass%Si ྜ㔠⢊ᮎࢆ㸪cBN య✚ศ⋡ࡀ඲యࡢ 35㹼60 vol㸣࡜࡞ࡿࡼ࠺
࡞㓄ྜẚ࡛ΰྜࡋࡓΰྜ⢊ᮎࢆ⏝ពࡋࡓ㸬 ࡇࢀࡽࡢΰྜ⢊ᮎࢆ㸪Fig㸬
3 ࡟♧ࡍࡼ࠺࡟WC/Co 〇㉸◳ࢲ࢖ࢭࢵࢺ୰࡟඘ሸࡋ㸪2 Pa ࡢ┿✵୰࡛㸪
ຍᅽຊ80~300 MPa㸪ᐊ ࠿ࡽ 813 K ࡲ࡛ࡢ᪼ ㏿ᗘ 1.08 K/s㸪813K ࠿ࡽ 878K ࡲ࡛ࡢ᪼ ㏿ᗘ 0.05K/s ࡢ᮲௳࡛ SPS ᡂᙧࡋ㸪┤ᚄ 10mm×ཌࡉ⣙ 2 mm ࡢࢹ࢕ࢫࢡ≧ヨᩱࢆస〇ࡋࡓ.

ࡣ㸪ࢲ࢖ෆቨࡼࡾ 5 mm ࡢ఩⨨ࡢࢲ࢖ ᗘࢆ K ᆺ⇕㟁ᑐ࡛ ᐃࡍࡿࡇ࡜

࡟ࡼࡾ⾜࡞ࡗࡓ. ࡞࠾㸪813 K ࠿ࡽ 878 K ࡲ࡛ࢆ᪼ ㏿ᗘ 0.05 K/s ࡛ప㏿ຍ⇕ࡍࡿࡢࡣ㸪๓ሗ࡛ 11, 12, 15)࡛ሗ࿌ࡋ࡚࠸ࡿ㏻
ࡾ㸪ᡂᙧ୰࡟ Al ࣐ࢺࣜࢵࢡࢫࡢᅛ-ᾮඹᏑ≧ែࢆᣢ⥆ࡉࡏ㸪ᮦᩱ୰ࡢ࣏࢔ࢆຠ⋡Ⰻࡃ඘ሸࡍࡿࡓࡵ࡛࠶ࡿ㸬௒ᅇ⏝࠸ࡓ SPS ᡂᙧ᮲௳ࢆ Fig㸬4 ࡟♧ࡍ㸬300 MPa ࡛ࡢ㧗ᅽຊୗ࡛ࡢᡂᙧࡣ㸪඲ᕤ⛬ࢆ㏻ࡌ࡚࡛ࡣ࡞ࡃ㸪ࢲ࢖ ᗘ
ࡀ 876 K ࡟㐩ࡋࡓ᫬Ⅼ࡛ຍ⇕೵Ṇࡍࡿ࡜ྠ᫬࡟ຍᅽຊࢆ 80 MPa ࠿ࡽ 300 MPa ࡟ቑຍࡉࡏࡿࡇ࡜࡟ࡼࡾ⾜ࡗ࡚࠸ࡿ㸬ࡇࢀࡣ㸪ࢲ࢖ ᗘࡀ 876K ࡟㐩ࡋࡓ᫬Ⅼ࡛ࡶ࡞࠾ヨᩱ୰࡟ṧᏑࡋ࡚࠸ࡿ࣏࢔ࢆ㸪ᾮ┦࡛ࡉࡽ࡟඘ሸࡋ㸪࠿ࡘ㸪Al ࣐ࢺࣜࢵࢡࢫ࡜ cBN ⢏Ꮚ࡜ࡢᐦ╔ᛶࢆྥୖࡉࡏࡿࡓࡵ࡛࠶ࡿ㸬ᮎྜྷࡽ 21)ࡣ㸪」ྜᮦᩱࡢຍ⇕ᅽ⦰ᡂᙧ࡟࠾࠸࡚ࡣ㸪ࣇ࢕࣮ࣛ㛫㝽࡬ࡢ࣐ࢺࣜࢵࢡࢫ㔠ᒓࡢ඘ሸࡀ୙༑ศ࡞ẁ㝵࠿ࡽࡢ㧗ຍᅽຊࡢ௜୚ࡣ㸪ࣇ࢕࣮ࣛྠኈࡢᙉᅛ࡞ᐦ╔ࢆ⏕ࡐࡋࡵ㸪ࣇ࢕࣮ࣛ㛫㝽࡬ࡢ࣐ࢺࣜࢵࢡࢫ㔠ᒓࡢ౵ධࢆ㜼ᐖࡍࡿࡇ࡜࠿ࡽ㸪ࡲࡎపᅽᡂᙧ࡛࣐ࢺࣜࢵࢡࢫ㔠ᒓࢆࣇ࢕࣮ࣛ㛫㝽࡟඘ศ඘ሸࡋ㸪ࡑࡢᚋࡢ㧗ᅽᡂᙧ࡛ࣇ࢕࣮ࣛ/࣐ࢺࣜࢵࢡࢫࡢᐦ╔ࢆᅗࡿ࡜࠸࠺㸪2 ẁ㝵ຍᅽࡢ᭷ຠᛶࢆሗ࿌ࡋ࡚࠸ࡿ㸬ࡋࡓࡀࡗ࡚㸪ᮏ◊✲࡟࠾࠸࡚ࡶ㸪798 K ࠿ࡽ 876 K ࡲ࡛ࡢప㏿ຍ⇕㐣⛬࡟࠾࠸࡚ࡣ Al ࣐ࢺࣜࢵࢡࢫࡢᾮ┦㒊ศࢆ cBN ⢏Ꮚ㛫㝽࡟౵ධࡋࡸࡍࡃࡍࡿࡓࡵ࡟㸪࠶࠼࡚ 80 MPa ࡜࠸࠺పⲴ㔜࡛ᡂᙧࡋ㸪ࢲ࢖ ᗘࡀ 876 K ࡟㐩ࡋ㸪ຍ⇕೵Ṇࡋࡓ┤ᚋ࡟ 300
MPa ࡲ࡛ຍᅽຊࢆቑࡸࡍ࡜࠸࠺᪉ἲࢆ᥇⏝ࡋࡓ㸬࡞࠾㸪ຍᅽຊ 300 Mpa ࡛ࡢಖᣢ᫬㛫ࡣ㸪๓ሗ 3)ྠᵝ 180 s ࡜ࡋࡓ㸬స〇ࡉࢀࡓࢹ࢕ࢫࢡ࡟ࡘ࠸࡚ࡣ㸪┦ᑐᐦᗘࡢ ᐃ㸪 SEM(JSM-6460LA)࡟ࡼࡿ⤌⧊ほᐹ㸪࣮ࣞࢨ࣮ࣇࣛࢵࢩࣗἲ
(Netzsch LFA-457)࡟ࡼࡿ⇕ఏᑟ⋡ࡢ ᐃ㸪ཬࡧ㸪⇕⭾ᙇ ᐃ⿦⨨(Rigaku TMA8310) ࡟ࡼࡿ⇕⭾ᙇಀᩘࡢ ᐃࢆ⾜ࡗࡓ㸬3  ⤖ᯝ࠾ࡼࡧ⪃ᐹ
3.1 ⤌⧊࡜⏕ᡂ┦ Al-60 vol㸣cBN 」ྜᮦᩱࡢ SEM ࡟ࡼࡿ⤌⧊ほᐹ⤖ᯝࢆ Fig㸬5 ࡟♧ࡍ㸬Fig㸬5 ୖẁ࡟♧ࡍࡼ࠺࡟㸪ࣔࣀ࣮ࣔࢲࣝ」ྜ

− 143 −

ᮦᩱ㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱ㸪ඹ࡟⃰⅊Ⰽࡢ cBN ⢏Ꮚࡀῐ⅊Ⰽࡢ Al ୰࡟ศᩓࡋࡓ⤌⧊ࢆ࿊ࡋ࡚࠸ࡿ㸬Fig㸬5 ୗẁࡣ㸪ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱ㸪࠾ࡼࡧ㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢ Al/cBN ኱⢏Ꮚ⏺㠃ࡢᣑ኱෗┿ࢆ♧ࡋ࡚࠸ࡿ㸬ࣔࣀ࣮ࣔࢲࣝ
」ྜᮦᩱࡢሙྜ㸪Al/cBN ኱⢏Ꮚ⏺㠃࡟ከᩘࡢ࣏࢔ࡢṧᏑࡀㄆࡵࡽࢀࡿ㸬ࡇࢀ࡟ᑐࡋ㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜ㸪cBN ኱⢏Ꮚ㛫㝽࡟ cBN ᑠ⢏Ꮚࡀ඘ሸࡉࢀ㸪࣏࢔ࡢṧᏑࡣ㸪ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜࡼࡾᑡ࡞ࡃ࡞ࡗ࡚࠸ࡿ㸬ࡇࢀࡣ㸪ࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࢆ᭷ࡍࡿ cBN ⢊ᮎ⢏Ꮚࢆ⏝࠸ࡓຠᯝ࡜ᛮࢃࢀࡿ㸬࡞࠾㸪SEM ほᐹࡢ⠊ᅖෆ࡛ࡣ㸪Al/cBN⏺㠃࡟࠾࠸࡚㸪AlN ➼ࡢ⏺㠃཯ᛂᒙࡢ⏕ᡂࡣㄆࡵࡽࢀ࡞࠿ࡗࡓ㸬ࡇࢀࡣ㸪ඖࠎcBN ࡀ Al ࡜཯ᛂࡋ࡟ࡃ࠸ࡇ࡜࡜㸪ᮏ◊✲࡛⏝࠸ࡓ㸪ᣢ⥆ᆺᅛ-ᾮඹᏑ≧ែࢆ฼⏝ࡋࡓ SPS ᡂᙧἲ 11, 12, 15)ࡀ㸪ᅛ┦⋡ࡀᴟࡵ࡚㧗࠸ᅛᾮඹᏑ≧ែ࡛ࡢᡂᙧ࡛࠶ࡾ㸪࠿ࡘ㸪ᾮ┦ࡢᏑᅾ఩⨨ࡀ᫬ࠎ้ࠎ⛣ືࡍࡿࡓࡵ㸪Al/cBN ⏺㠃཯ᛂࡢ⏕ࡌ࡟ࡃ࠸ᡂᙧ᪉ἲ࡛࠶ࡿࡇ࡜࡟㉳ᅉࡍࡿࡶࡢ࡜
⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ࢼࣀࢧ࢖ࢬࡢ཯ᛂ⏕ᡂ≀ࡀ Al/cBN ⏺㠃࡟ᚤ㔞࡟⏕ᡂࡋ࡚࠸ࡿሙྜ㸪SEM ほᐹࡸ X ⥺ᅇᢡ࡛ࡣ࡜ࡽ࠼࡟ࡃ࠸࡜ᛮࢃࢀࡿ㸬ࡋࡓࡀࡗ࡚㸪Al/cBN ⏺㠃཯ᛂᒙࡢᏑᅾࡢ☜ㄆ࡟ࡣ㸪ศᯒ㟁㢧ἲ㸦STEM-EDX㸧ࢆ⏝࠸ࡓヲ⣽࡞ほᐹࡀᚲせ࡜⪃࠼ࡽࢀࡿ㸬
3.2 cBN ⢏Ꮚయ✚ศ⋡࡜」ྜᮦᩱࡢ┦ᑐᐦᗘ࡜ࡢ㛵ಀ
 Fig㸬6 ࡣ㸪SPS ᡂᙧࡋࡓ Al/cBN 」ྜᮦᩱࡢ┦ᑐᐦᗘࡢ cBN ⢏Ꮚయ✚ศ⋡࡜ࡢ㛵ಀࢆ♧ࡋ࡚࠸ࡿ. ࣔࣀ࣮ࣔࢲࣝ」ྜ
ᮦᩱࡢሙྜ cBN ⢏Ꮚయ✚ศ⋡ࡀ 35㹼50 㸣ࡢ⠊ᅖෆ࡟࠾࠸࡚ࡣ㸪99 㸣ࢆ㉺࠼ࡿ┦ᑐᐦᗘࡀᚓࡽࢀࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪BN ⢏Ꮚయ✚ศ⋡ࡀ 50 㸣ࢆ㉺࠼ࡿ࡜㸪」ྜᮦᩱࡢ┦ᑐᐦᗘࡣ cBN ⢏Ꮚయ✚ศ⋡ࡢቑ኱࡜ඹ࡟ῶᑡࡋ㸪cBN ⢏Ꮚయ✚ศ
⋡ 55 㸣࡛┦ᑐᐦᗘࡣ 97.9 㸣࡟㸪cBN ⢏Ꮚయ✚ศ⋡ 60 㸣࡛ࡣ┦ᑐᐦᗘࡣ 89.5 㸣࡟ࡲ࡛㸪ࡑࢀࡒࢀపୗࡋࡓ㸬୍᪉㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜࡣ㸪cBN ⢏Ꮚయ✚ศ⋡ 60 㸣ࡲ࡛㸪┦ᑐᐦᗘࡣ 99 㸣௨ୖ࡛࠶ࡾ㸪cBN ⢏Ꮚయ✚ศ⋡ 70 㸣࡟࠾࠸࡚ࡶ 95 㸣௨ୖࡢ┦ᑐᐦᗘࢆ⥔ᣢࡋ࡚࠸ࡿ㸬๓㏙ࡢ⤌⧊ほᐹ⤖ᯝ࡟ࡶ⾲ࢀ࡚࠸ࡿࡼ࠺࡟㸪cBN ⢊ᮎࡢࣂ࢖࣮ࣔࢲ
ࣝ࡞⢏ᗘศᕸࡀ」ྜᮦᩱࡢ┦ᑐᐦᗘࡢྥୖ࡟ᐤ୚ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬
3.3 ⇕ఏᑟ⋡ Al/cBN 」ྜᮦᩱࡢ⇕ఏᑟ⋡࡜ cBN ⢏Ꮚయ✚ศ⋡࡜ࡢ㛵ಀࢆ Fig. 7 ࡟♧ࡍ㸬ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱ࡟࠾࠸࡚ࡣ㸪cBN⢏Ꮚయ✚ศ⋡ 35㹼45 vol%ࡢ⠊ᅖෆ࡟࠾࠸࡚㸪」ྜᮦᩱࡢ⇕ఏᑟ⋡ࡣ㸪cBN ⢏Ꮚయ✚ศ⋡ࡢቑ኱࡜ඹ࡟༢ㄪ࡟ቑຍࡋ㸪cBN ⢏Ꮚయ✚ศ⋡ 45vol.%࡟࠾࠸࡚ 305 W/mK ࡢ⇕ఏᑟ⋡ࡀᚓࡽࢀࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪cBN ⢏Ꮚయ✚ศ⋡ࡀ 45 vol%ࢆ㉺࠼ࡿ࡜㸪」ྜᮦᩱࡢ⇕ఏᑟ⋡ࡣ㸪cBN ⢏Ꮚయ✚ศ⋡ࡢቑ኱࡜ඹ࡟ῶᑡࡋcBN ⢏Ꮚయ✚ศ⋡55 vol%࡛ࡣ262 W/mK ࡟㸪ࡉࡽ࡟㸪cBN ⢏Ꮚయ✚ศ⋡ 60 vol%࡛ࡣ 192 W/mK ࡟ࡲ࡛పୗࡍࡿ㸬୍᪉㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜࡣ㸪⇕ఏᑟ⋡ࡣ㸪cBN ⢏Ꮚయ✚ศ⋡ 60 vol%ࡲ࡛ࡣ cBN ⢏Ꮚయ✚ศ⋡ࡢቑ኱࡜ඹ࡟ቑຍࡋ㸪Al-60 vol%cBN 」ྜᮦᩱ࡟࠾࠸࡚㸪᭱㧗ࡢ⇕ఏᑟ⋡ 325 W/mK ࡀᚓࡽࢀࡓ㸬ࡇࢀࡶ㸪cBN ⢊ᮎࡢࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࡢᙳ㡪࡜ᛮࢃࢀࡿ㸬࡞࠾㸪௒ᅇ⏝࠸ࡓࣂ࢖࣮ࣔࢲࣝ࡞ cBN ⢊ᮎ୰ࡢ኱⢏Ꮚ࡜ᑠ⢏Ꮚࡢ㓄ྜẚࡣ㸪๓㏙ࡢࡈ࡜ࡃ㸪73.21㸸26.79 ࡛࠶ࡿ㸬ࡋࡓࡀࡗ࡚㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱ୰᭱㧗ࡢ⇕ఏᑟ⋡ࡀᚓࡽࢀࡓ Al-60 vol%cBN 」ྜᮦᩱ୰ࡢ cBN ኱⢏Ꮚࡢయ✚ศ⋡ࡣ 43.93 vol%࡛࠶ࡿ㸬ࡋࡓࡀࡗ࡚㸪௒ᅇࡢ cBN ኱⢏Ꮚ(┤ᚄ 390 ȝm)ࢆ⏝࠸࡚㸪ᣢ⥆ᆺᅛ-ᾮඹᏑ≧ែ࡛ SPS ᡂᙧࡍࡿ࡜࠸࠺᮲௳࡟࠾࠸࡚ࡣ㸪ࣔࣀ࣮ࣔࢲࣝ࡟࠾࠸࡚ࡶࣂ࢖࣮ࣔࢲࣝ࡟࠾࠸࡚ࡶ㸪㧗⇕ఏᑟ⋡ࢆᚓࡿࡓࡵ࡟」ྜᮦᩱ୰࡟ྵࡲࢀࡿ cBN ኱⢏Ꮚࡢ⮫⏺య✚ศ⋡ࡣ⣙ 45 vol㸣࡜⪃࠼ࡽࢀࡿ㸬ࡉࡽ࡟㸪௒ᅇࡢ⇕ఏᑟ⋡ ᐃ⤖ᯝࡣ㸪cBN ⢏Ꮚయ✚ศ⋡ 45 vol%࡛ࡣ㸪ࣔࣀ࣮ࣔࢲ
ࣝ」ྜᮦᩱ࡜ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢ⇕ఏᑟ⋡ࡣ࡯ࡰ➼ࡋࡃ㸪cBN ⢏Ꮚయ✚ศ⋡ 50 vol%௨ୖ࡛ࡣࣂ࢖࣮ࣔࢲࣝ」ྜᮦ
ᩱࡢ᪉ࡀ⇕ఏᑟ⋡ࡀ㧗࠸ࡇ࡜ࢆ♧ࡋ࡚࠸ࡿ㸬ࡋࡓࡀࡗ࡚௒ᅇࡢ⤖ᯝ࠿ࡽ㸪Al/cBN 」ྜᮦᩱ࡟ࡘ࠸࡚ࡣ㸪ࣔࣀ࣮ࣔࢲࣝ
࡜ࣂ࢖࣮ࣔࢲࣝࢆ౑࠸ศࡅࡿࡇ࡜࡟ࡼࡾ㸪cBN ⢏Ꮚయ✚ศ⋡ 40㹼70 vol%ࡢ⠊ᅖ࡟࠾࠸࡚㸪300 W/mK ௨ୖࡢ⇕ఏᑟ⋡ࡀ⥔ᣢ࡛ࡁࡿࡇ࡜ࡀ♧၀ࡉࢀࡿ㸬ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱ࡟࠾ࡅࡿྠᵝࡢഴྥࡣ㸪Al/ࢲ࢖ࣖࣔࣥࢻ⣔ 22, 23)㸪Ag/ࢲ࢖ࣖࣔࣥࢻ⣔ 24)㸪ཬࡧ㸪Al/SiC ⣔ 25)࡟࠾࠸࡚ࡶ☜ㄆࡉࢀ࡚࠸ࡿ㸬
3.4 ⇕⭾ᙇಀᩘ Fig㸬8 ࡟ Al/cBN 」ྜᮦᩱࡢ⇕⭾ᙇಀᩘࡢ⌮ㄽ್࡜ᐇ ್ࢆྜࢃࡏ࡚♧ࡋࡓࠋ⢏Ꮚศᩓᆺ」ྜᮦᩱࡢ⇕⭾ᙇಀᩘࡢ⌮ㄽᘧ࡜ࡋ࡚ࡣ㸪Turner26)ࡢࣔࢹࣝ࡜ Kerner27)ࡢࣔࢹࣝࡢ 2 ✀㢮ࡀᥦၐࡉࢀ࡚࠸ࡿ㸬ࡇࡢ࠺ࡕ㸪Kerner ࡢࣔࢹࣝࡣ㸪ศᩓ⢏Ꮚ࡜࣐ࢺࣜࢵࢡࢫࡢ⏺㠃࡛⏕ࡎࡿࡏࢇ᩿ᛂຊࡢᙳ㡪ࢆ⪃៖ࡋ࡚࠸ࡿࡓࡵࡼࡾᗈࡃ⏝࠸ࡽࢀ࡚࠸ࡿ㸬ᮏ◊✲࡟࠾࠸࡚ࡶ㸪− 144 −

Kerner ࡢࣔࢹࣝࢆ⏝࠸࡚⌮ㄽィ⟬್࡜ᐇ ್ࡢẚ㍑ࢆ⾜ࡗࡓ㸬ᮏ◊✲࡛స〇ࡋࡓ Al/cBN 」ྜᮦᩱࡢ⇕⭾ᙇಀᩘࡢᐇ
್ࡣ㸪ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱࡢ Al-35 vol%cBN ࡟࠾࠸࡚ 17.49×10-6㸪ࡑࡋ࡚㸪Al-45 vol%cBN ࡟࠾࠸࡚ 16.02×10-6 ࡛࠶ࡗࡓ㸬ࡲࡓ㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢ Al-55 vol%cBN ࡟࠾࠸࡚ 13.96×10-6㸪ࡑࡋ࡚㸪Al-65 vol%cBN ࡟࠾࠸࡚ 11.65×10-6
࡛࠶ࡗࡓ㸬cBN ྵ᭷㔞ࡢቑ኱࡜ඹ࡟」ྜᮦᩱࡢ⇕⭾ᙇಀᩘࡣῶᑡࡍࡿࡀ㸪ࡇࢀࡽࡢᐇ ್ࡣ㸪⇕⭾ᙇಀᩘࡢ኱ࡁ࠸ Alࢆ࣐ࢺࣜࢵࢡࢫ࡜ࡋ⇕⭾ᙇಀᩘࡢᑠࡉ࠸ cBN ࢆศᩓ⢏Ꮚ࡜ࡋ࡚ィ⟬ࡋࡓ㸪Kerner ࡢ Upper line(ୖ㝈ࡢ᭤⥺)࡛♧ࡉࢀࡿ⌮ㄽ್ࡸࡸୖᅇࡿ್࡛࠶ࡗࡓ㸬ࡇࡢ⤖ᯝࡣ㸪ᮏ◊✲࡛స〇ࡋࡓ Al/cBN 」ྜᮦᩱࡢ⢏Ꮚ/࣐ࢺࣜࢵࢡࢫ⏺㠃ࡢᐦ╔ᛶࡀࡸࡸᙅࡃ㸪ᨵၿࡢవᆅࡀ࠶ࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿ㸬SPS ᡂᙧ୰ࡢ ᗘ㸪ຍᅽຊࡸ Al ࣐ࢺࣜࢵࢡࢫ୰ࡢᅛ┦⋡ࢆࡉࡽ࡟᭱㐺໬ࡋ㸪BN ࡼࡾࡶ❅໬≀ᶆ‽⏕ᡂ⮬⏤࢚ࢿࣝࢠ࣮ࡢప࠸ AlN 1㸪2)➼ࡢ⏺㠃཯ᛂᒙࢆ Al/cBN ⏺㠃࡟ in-situ ⏕ᡂࡉࡏࡿࡇ࡜
ࡶ 1 ࡘࡢ᪉ἲ࡛ࡣ࡞࠸࠿࡜⪃࠼࡚࠸ࡿ㸬
4㻌 㻌 ⤖㻌 㻌 ㄽᣢ⥆ᆺᅛ-ᾮඹᏑ≧ែࢆ฼⏝ࡋࡓᨺ㟁ࣉࣛࢬ࣐↝⤖ἲ(SPS)࡟ࡼࡾ㸪❧᪉ᬗ❅໬࣍࢘⣲(cBN)⢏Ꮚศᩓᆺ Al ᇶ」ྜᮦᩱ
ࢆస〇ࡋ㸪cBN ࡢࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࡀ」ྜᮦᩱࡢ┦ᑐᐦᗘࡸ⇕≀ᛶ࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚ㄪ࡭㸪௨ୗࡢࡇ࡜ࢆ᫂
ࡽ࠿࡟ࡋࡓ.
(1) cBN ⢊ᮎ㸪⣧ Al ⢊ᮎ㸪ཬࡧ㸪Al-5 mass%Si ⢊ᮎࡢΰྜ⢊ᮎࡣ㸪SPS ࡟ࡼࡾ 2 Pa ࡢ┿✵୰࡛㸪ຍᅽຊ 80-300 MPa㸪ᐊ ࠿ࡽ 813 K ࡲ࡛ࡢ᪼ ㏿ᗘ 1.08 K/s㸪813 K ࠿ࡽ 878 K ࡲ࡛ࡢ᪼ ㏿ᗘ 0.05 K/s ࡢ᮲௳࡛⦓ᐦ໬࡛ࡁࡿ.
(2) SEM ほᐹࡢ⠊ᅖෆ࡛ࡣ Al/cBN ⏺㠃཯ᛂᒙࡢᙧᡂࡣほᐹࡉࢀ࡞࠿ࡗࡓ㸬(3) ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱ࡛ࡣ㸪cBN ⢏Ꮚయ✚ศ⋡ࡀ 50 vol%ࢆ㉺࠼ࡿ࡜┦ᑐᐦᗘࡀ 99 㸣௨ୗ࡟పୗࡍࡿࡀ㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜ㸪cBN ⢏Ꮚయ✚ศ⋡ 60 vol%ࡲ࡛ 99 㸣௨ୖࡢ┦ᑐᐦᗘࢆ⥔ᣢ࡛ࡁࡓ㸬(4) ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱ࡛ࡣ㸪cBN ⢏Ꮚయ✚ศ⋡ࡀ 45 vol%࡟࠾࠸࡚᭱㧗ࡢ⇕ఏᑟ⋡ 305 W/mK ࡀᚓࡽࢀࡓ㸬୍᪉㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱ࡛ࡣ㸪cBN ⢏Ꮚయ✚ศ⋡ࡀ 60 vol%࡟࠾࠸࡚᭱㧗ࡢ⇕ఏᑟ⋡ 325 W/mK ࡀᚓࡽࢀࡓ㸬ࣔࣀ࣮ࣔࢲ
ࣝ」ྜᮦᩱ࡜ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࢆ⤌ࡳྜࢃࡏࡿࡇ࡜࡟ࡼࡾ㸪cBN ⢏Ꮚయ✚ศ⋡ 40~70 vol%ࡢ⠊ᅖ࡛㸪300 W/mK ௨ୖࡢ⇕ఏᑟ⋡ࢆ⥔ᣢ࡛ࡁࡿ㸬(5) Al/cBN 」ྜᮦᩱࡢ⇕⭾ᙇಀᩘࡢᐇ ್ࡣ Kerner ࣔࢹࣝࡢ⌮ㄽᘧࡢ Upper line ࢆࡸࡸୖᅇࡾ㸪Al/cBN ⏺㠃ࡢᐦ╔ᛶ࡟ࡣᨵၿࡢవᆅࡀ࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬ᩥ  ⊩1) Metals Handbook, Vol.2 - Properties and Selection: Nonferrous Alloys and Special-Purpose Mater., ASM Inter. 10th Ed.
(1990)1119-1124.
2) ASM Engineered Mater. Reference Book, 2nd Edition, M. Bauccio, Ed. ASM Inter., Mater. Park, OH, (1994)360-369.
3) K. Mizuuchi, K. Inoue, Y. Agari, M. Sugioka, M. Tanaka, T. Takeuhi, J. Tani䠈M. Kawahara, Y. Makino, M. Ito, J. Jpn. Soc.
Powder Powder Metallurgy, 61(2014)549-555.
4) M. Ito, T. Nagira, M. Katsuyama, J. Jpn. Soc. Powder Powder Metallurgy, 57(2010)224-231. .
5) N. Tamari, T. Tanaka, K. Tanaka, I. Kondo, M. Kawahara, M. Tokita, J. Ceram. Soc. Jpn., 103(1995)12-17.
6) K. Mizuuchi, K. Inoue, K. Hamada, M. Sugioka, M. Itami, M. Fukusumi, M. Kawahara, Mater. Sci. Eng A, 367(2004)343-349.
7) K. Mizuuchi, K Inoue, M. Sugioka, M. Itami, M. Kawahara, I. Yamauchi, J. Japan Inst. Metals, 68(2004)1083-1085.
8) K. Mizuuchi, K. Inoue, Y. Agari, S. Yamada, M. Sugioka, M. Itami, M. Kawahara, Y. Makino, J. Japan Inst. Metals,
71(2007)1066-1069.
9) K. Mizuuchi, K. Inoue, Y. Agari, S. Yamada, M. Tanaka, M. Sugioka, T. Takeuchi, J. Tani, M. Kawahara, J. –h. Lee, Y. Makino,Mater. Sci. Forum, 638-642(2010)2115-2120.
10) K. Mizuuchi, K. Inoue, Y. Agari, Y. Morisada, M. Sugioka, M. Itami, I. Kawafune, M. Kawahara, Y. Makino䠈J. Jpn. Soc. Powder− 145 −

Powder Metallurgy, 55(2008)96-100.
11) K. Mizuuchi, K. Inoue, Y. Agari, Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, J. Tani, M. Kawahara, Y. Makino䠈J. Jpn. Soc.
Powder Powder Metallurgy, 56(2009)438-443.
12) K. Mizuuchi, M. Kawahara, Y. Makino, J. Jpn. Soc. Powder Powder Metallurgy, 58(2011) 63-70.
13) K. Mizuuchi, K. Inoue, Y. Agari, Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, M. Kawahara, Y. Makino, J. Jpn. Soc.
Powder Powder Metallurgy, 56(2009)768-774.
14) K. Mizuuchi, K. Inoue, Y. Agari, Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, M. Kawahara, Y. Makino, Compos. Part B:
Eng., (2011)1029-1034.
15) K. Mizuuchi, K. Inoue, Y. Agari, Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, J. Tani, M. Kawahara, Y. Makino, Compos.
Part B: Eng. (2011)825-831.
16) K. Mizuuchi, K. Inoue, Y. Agari, T.㻌 Nagaoka䠈Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, J. Tani, M. Kawahara,
Y. Makino, M䠊Ito, J. Jpn. Soc. Powder Powder Metallurgy, 58(2011)155-159.
17) K. Mizuuchi, K. Inoue, Y. Agari, T.㻌 Nagaoka䠈Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, J. Tani, M. Kawahara,
Y. Makino, M䠊Ito, Compos. Part B: Eng., 42(2011) 1557-63.
18) K. Mizuuchi, K. Inoue, Y. Agari, T.㻌 Nagaoka䠈Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, J. Tani, M. Kawahara,
Y. Makino, M䠊Ito, J. Jpn. Soc. Powder Powder Metallurgy, 58(2011)160-164.
19) K. Mizuuchi, K. Inoue, Y. Agari, T.㻌 Nagaoka䠈Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, J. Tani, M. Kawahara,
Y. Makino, M䠊Ito, Compos. Part B: Eng., 43(2012)2012-2019.
20) C.C. Furnas: "Grading Aggregates: I", Ind. Eng. Chem., 23(1931)1052-1058.
21) H.Sueyoshi䠈T. Maruno, K. Yamamoto, Y. Hirata, S. Sameshima, S. Uchida, S. Hamauzu, S. Kurita, J. Japan Inst. Metals,
10(2001)961-966.
22) K. Mizuuchi, K. Inoue, Y. Agari, T.㻌 Nagaoka䠈Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, M. Kawahara, Y. Makino,M䠊Ito, J. Jpn. Soc. Powder Powder Metallurgy, 59(2012)437-442.
23) K. Mizuuchi, K. Inoue, Y. Agari, T.㻌 Nagaoka䠈Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, J. Tani, M. Kawahara,
Y. Makino, M䠊Ito, Microelectronics Reliability, 54(2014) 2463-70.
24) K. Mizuuchi, K. Inoue, Y. Agari, T.㻌 Nagaoka䠈Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, J. Tani, M. Kawahara,
Y. Makino, M䠊Ito, J. Jpn. Soc. Powder Powder Metallurgy, 60(2013)195-201.
25) K. Mizuuchi, K. Inoue, Y. Agari, T.㻌 Nagaoka䠈Y. Morisada, M. Sugioka, M. Tanaka, T. Takeuchi, J. Tani, M. Kawahara,
Y. Makino, M䠊Ito, J. Jpn. Soc. Powder Powder Metallurgy, 60(2013)202-208.
26) P. S. Turner: “Thermal –Expansion Stresses in Reinforced Plastics”, J. Res. NBS., 37(1946)239-250.
27) E. H. Kerner: “The Elastic and Thermo-elastic. Properties of Composite Media”, Proc. Phys. Soc., B69(1956)808-813.

− 146 −

Large cBN

Al

Small cBN

Al-5mass%Si

Fig. 1 SEM micrographs of as-received large cBN, small cBN, pure Al and Al-5mass% Si alloy powders, showing the powder
morphology.
50

Pressure

Pulsed current

Porosity, İ (%)

40

Large cBN
particle
Small cBN
particle30

Matrixpowdermixture(Al+Al-5%Si)

20䃔䠙㻝㻣㻚㻟㻝䠂
Pressure10䡒㻝䠙㻣㻟㻚㻞㻝䠂

0
0

20

40

60

80

100

Volume fraction of large cBN particle. v1 (%)

cBN particle
dispersed Al
matrixcomposite

Fig㸬2
Changes in the porosity of cBN powder
mixtures composed of large sized particles (390ȝm)and small sized particles (39ȝm) as a function of thevolume fraction of large cBN particles in the diamondpowder mixture. 39.46% (İ1 ) at 100% of Sv1 and43.86% (İ2) at 0% of Sv1 were experimentally obtained
after one hundred times of tapping.
973

500㻦㻌㼀㼑㼙㼜
㻦㻌㻸㼛㼍㼐

873

400

773
300

673
573

200

Load, ı/MPa

Temperature, T/K

Fig. 3 Schematic illustration showing processing ofcBN particle dispersed Al-matrix composite by spark
plasma sintering (SPS).

473
100

373
273
0

500

1000

1500

2000

0
2500

Sintering time, t/s

Fig. 4 Changes in the temperature of the Al-matrix composite
containing of cBN powder particles and in the pressure applied
to the composite during spark plasma sintering as a function ofsintering time.

Fig㸬5 SEM micrographs taken from Al matrix composite containing 60
vol.% cBN fabricated by spark plasma sintering.

− 147 −

400

Thermal conductivity, Ȝ/䠄W/mK)

Relative packing density, Dr (%)

100

95

90

: Monomodal: Bimodal

85
30

40

50

60

70

80

Volume fraction of cBN, Vf (%)

300

200

100
: Monomodal: Bimodal

Fig. 6 Change in relative packing density ofcBN-particle-dispersed Al-matrix composite
fabricated by spark plasma sintering as a function of
the volume fraction of cBN particles in thecomposite.

0
30

40

50

60

70

80

Volume fraction of cBN䠈Vf (%)

Fig. 7 Thermal conductivity of cBN-particle-dispersed Al-matrix
composite fabricated by spark plasma sintering as a function of thevolume fraction of cBN. ᗓ         (ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝)

Coefficient of thermal expansion, Į(×10䠉6)30
Turner line
Kerner lower line

25

Kerner upper line
Experimental(Monomodal)
Experimental(Bimodal)

20
15
10
5
0
0

20

40

60

80

100

Volume fraction of cBN, Vf (%)

Fig. 8 Comparison of CTEs predicted theoretically using Kernermodel for Al-matrix composite containing cBN and cBN-matrix
composite containing Al, and CTEs obtained for Al matrix composite
containing 35, 41, 55 and 65 vol.% cBN particles. Kerner's upper line
is obtained for Al as the matrix of the composite, whereas the lower line
is obtained for the dispersed cBN as the matrix.
Atheoretically-obtained curve using Turner model is also shown.

− 148 −

ࣂ࢖࣐࢜ࢸࣜ࢔ࣝࢆ⏝࠸ࡓ⏕య⏺㠃࡬ࡢࢼࣀࢫࢣ࣮ࣝᨵ㉁࡜⏕≀Ꮫⓗ≉ᛶホ౯໭ᾏ㐨኱Ꮫ⑓㝔ṑ࿘࣭ṑෆ⒪ἲ⛉㸪 ໭ᾏ㐨኱Ꮫ኱Ꮫ㝔ṑᏛ◊✲㝔ṑ࿘࣭ṑෆ⒪ἲᏛᩍᐊ

ᐑ἞⿱ྐ 㸪す⏣⤮฼㤶 㸪ⶔెዉᏊ 㸹࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈࢆ⏝࠸ࡓࢳࢱࣥ⾲㠃ࡢࢼࣀࢫࢣ࣮ࣝᨵ㉁ࡀ㦵᥋ྜ࡟ཬࡰࡍຠᯝձ ┠ⓗࢳࢱࣥ㸦7L㸧࡜⏕యࡢ⏺㠃ࡢ㐺ྜᛶྥୖࡢࡓࡵ㸪ᡃࠎࡣ 7L ⾲㠃࡟༢ศᩓ࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈ㸦&17㸧ࢆࢥ࣮ࢸ࢕ࣥࢢᚋ࡟⇕ฎ⌮ࡋ࡚ 7L ⾲㠃ࢆࢼࣀࢫࢣ࣮ࣝᵓ㐀ᨵ㉁ࡍࡿࡇ࡜࡟ᡂຌࡋࡓ 㸬ࡇࢀࡲ࡛࡟㸪ࢼࣀᵓ㐀໬࡟ࡼࡗ࡚
⏕≀Ꮫⓗ≉ᛶࡀ኱ࡁࡃྥୖࡍࡿࡇ࡜ࢆሗ࿌ࡋ㸪ࡲࡓ㸪ᑠᚄ࡛ప⃰ᗘࡢ &17 ࡟ࡼࡿᨵ㉁ࡀⰋዲ࡞⏕య㐺ྜᛶࢆ♧ࡍࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ 㸬ࡑࡇ࡛௒ᅇ㸪ᑠᚄ &17 ศᩓᾮࡢ⃰ᗘࢆẁ㝵ⓗ࡟タᐃࡋ࡚㸪ࢼࣀᚤ⣽ᵓ㐀ࢆ 7L ࣡࢖࣮ࣖ⾲㠃࡟స〇ࡋ㸪⏕యぶ࿴ᛶࢆホ౯ࡍࡿ࡜࡜ࡶ࡟㸪ࣛࢵࢺ኱⭣㦵㒊࡟ᇙධࡋ 7L ࡜㦵ࡢ᥋ྜ⏺㠃࡬ࡢᙳ㡪ࢆホ౯ࡋࡓ㸬ղ ◊✲᪉ἲ
ከᒙ &17 ࡛࠶ࡿ 1DQRF\O 1&㸦┤ᚄ QP㸹1DQRF\O㸪࣋ࣝࢠ࣮㸧ࡢ 㸪ZWศᩓᾮࢆసᡂࡋ㸪⣧ 7L ࣡࢖࣮ࣖ㸦ȭPP㸪㛗ࡉ PP㸪ᢕᣢ㒊 PP㸹ࢽࣛࢥ㸧ࡢ⾲㠃࡟ᆒ୍࡟ሬᕸ㸪኱Ẽ୰࡛஝⇱ᚋ㸪Υ࡛┿✵⇕ฎ⌮ࡋ࡚ࢥ࣮ࢸ࢕ࣥࢢࡋࡓ㸬㦵ᇙ᳜ヨ㦂࡜ࡋ࡚㸪ࣛࢵࢺࢆ඲㌟㯞㓉ୗ࡛⓶⭵ษ㛤ᚋ㸪኱⭣㦵࡟࣮࢝ࣂ࢖ࢻࣂ࣮ࢆ⏝࠸࡚┤ᚄ PP Ꮝࢆస〇ࡋ㸪ྛヨᩱࢆᏍ࠿ࡽ㦵ෆ࡟ᇙධᚋ㸪➽ᒙ㸪⓶⭵ᒙࢆ᚟఩⦭ྜࡋࡓ㸬 㐌ᚋ࡟኱⭣㦵࠿ࡽ࣡࢖࣮ࣖࢆ㝖ཤࡋ࡚⤌⧊Ꮫⓗ࡟ホ౯ࡋࡓ㸬ճ ◊✲⤖ᯝ&17 ࡟ࡼࡿࢥ࣮ࢸ࢕ࣥࢢ࡟ࡼࡗ࡚㸪7L ࣡࢖࣮ࣖࡢ⾲㠃ࡣ㯮ኚࡋ㸪&17 ⃰ᗘࡀ㧗࠸࡯࡝㯮ࡃኚ໬ࡋࡓ㸦)LJ㸧㸬ࣛࢵࢺ኱⭣㦵࡬ࡢᇙ᳜ヨ㦂ࡢ⤖ᯝࢆ )LJ ࡟♧ࡍ㸬
ྛ &17 ⃰ᗘ࡜ࡶ࡟⏺㠃࡬ࡢ⅖⑕ᛶ⣽⬊ࡢᾐ₶ࡣ࡯࡜ࢇ࡝ㄆࡵ࡞࠿ࡗࡓ㸬&17 ⩌࡛ࡣ㦵ᵝ⤌⧊࡜ࡢ᥋ྜ⏺㠃ࢆከࡃほᐹࡋࡓࡀ㸪㌾⤌⧊ࡀ௓ᅾࡋ࡚࠸ࡿ㒊ศࡶㄆࡵࡽ
ࢀࡓ㸬ࡲࡓ㸪ZW&17 ࡛ࡣ &17 ࡢจ㞟࡜ᛮࢃࢀࡿ㯮Ⅼࢆㄆࡵࡓ㸦ᙉᣑീ㸧㸬ࢥࣥࢺ࣮ࣟࣝࡢ 7L ࡛ࡣ⏺㠃࡬ࡢ㌾⤌⧊ᙧᡂࡀ &17 ⩌ࡼࡾࡶከࡃほᐹࡉࢀࡓ㸬ヨᩱ࡜⏕య⏺㠃ࡢ㦵᥋ྜ⋡ࢆィ ࡋࡓ࡜ࡇࢁ㸪㸣&17 ࡀ 㸣࡛࠶ࡾ㸪ࡶࡗ࡜ࡶ㦵)LJ&17 ࢥ࣮ࢸ࢕ࣥࢢ࣡࢖࣮ࣖ

᥋ྜ⋡ࡀ㧗࠿ࡗࡓ㸦)LJ㸧㸬)LJ኱⭣㦵ᇙ᳜ᚋࡢ
⤌⧊ീ࡜㦵᥋ྜ⋡մ ⤖ㄽ
 7L ࣡࢖࣮ࣖ⾲㠃ࡢ &17 ࡟ࡼࡿࢼࣀࢫࢣ࣮ࣝᨵ㉁ࡣ㸪㦵᥋ྜࢆྥୖࡋࡓ㸬− 149 −

2㸹ᢠ⳦ᛶࣂ࢖࢜ࢩࣜ࢝ࢆ⏝࠸ࡓṑ∳⾲㠃࡬ࡢࢼࣀࢫࢣ࣮ࣝᨵ㉁ 㸫ࢼࣀࣂ࢖࢜ࢩࣜ࢝ࡢᢠ⳦ᛶホ౯㸫ձ ┠ⓗ ✄సࡢ๪⏘≀࡜ࡋ࡚Ⓨ⏕ࡍࡿࡶࡳẆ࠿ࡽ⏕ᡂࡋࡓࣂ࢖࢜ࢩࣜ࢝ࡣ⏕యᏳ඲ᛶࡀ㧗ࡃ㸪ᙉຊ࡞≀㉁྾╔⬟࡜ᢠ⳦ᶵ⬟ࡀ࠶ࡿ࡜ሗ࿌ࡉࢀ࡚࠸ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ࣂ࢖࢜ࢩࣜ࢝࡟ᢠ⳦ᛶ≀㉁ࢆᢸᣢࡉࡏ㸪ࣂ࢖࢜ࢩ࡛ࣜ࢝
ṑ᰿⾲㠃ࢆᢠ⳦ᛶࢼࣀࢫࢣ࣮ࣝᨵ㉁ࡍࡿࡇ࡜࡟ࡼࡿ᪂つṑ࿘⑓἞⒪ἲࢆ㛤Ⓨࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬ࡲࡎࡣṑ㠃࡬ࡢ௜╔ᛶࢆྥୖࡉࡏࡿࡓࡵ࡟ࣂ࢖࢜ࢩࣜ࢝ࢆࢼࣀ⢏Ꮚ໬ࡋࡓᚋ㸪ᢠ⳦ᛶ≀㉁ࢆ኱㔞࡟྾╔ࡉࡏ࡚㸪ཱྀ⭍ෆ⣽⳦࡟ᑐࡍࡿᢠ⳦ᛶࡀⓎ᥹ࡉࢀࡿ࠿᳨ウࢆ⾜ࡗࡓ㸬ղ ◊✲᪉ἲ
⢊○ࡋ࡚ࢼࣀ⢏Ꮚ໬ࡋࡓࣂ࢖࢜ࢩࣜ࢝ࡢ⢏Ꮚࢆ ('6 ศᯒ㸪6(0 ほᐹࢆ⾜ࡗࡓ㸬⣽⬊ᇵ㣴ヨ㦂࡜ࡋ࡚ࢼࣀࣂ࢖
࢜ࢩࣜ࢝㸦㹼 PJP/㸧ࢆᇵᆅ࡟ῧຍࡋ㸪⥺⥔ⱆ⣽⬊ 1,+7㸦FHOOVZHOO㸧ࢆ Υ㸪㸣&2 ࡟࡚ᇵ㣴ࡋ㸪⣽⬊ぶ࿴ᛶホ౯ࢆ⾜ࡗࡓ㸬ḟ࡟ᢠ⳦ᛶヨ㦂࡜ࡋ࡚㸪ᢠ⳦≀㉁ࡢ 3HQLFLOOLQ6WUHSWRP\FLQ6ROXWLRQ㸦3HQ
6WUHS㸹7KHUPR )LVKHU 6FLHQWLILF㸧ࡢ⃰ᗘࢆẁ㝵ⓗ࡟タᐃࡋ࡚ࢼࣀࣂ࢖࢜ࢩࣜ࢝࡟ᢸᣢࡉࡏ㸪ཱྀ⭍ෆ⣽⳦ࡢ

6PXWDQV㸦$7&&㸧ᠱ⃮ᾮ࡟ࢼࣀࣂ࢖࢜ࢩࣜ࢝㸦㹼PJP/㸧ࢆῧຍ㸪Υ㸪᎘Ẽୗ࡛ᇵ㣴ࢆ⾜࠸㸪᪥ᚋ࡟⃮ᗘ ᐃ࡟࡚⣽⳦ቑṪᗘࡢホ౯ࢆ⾜ࡗࡓ㸬ճ ⤖ᯝ 

6(0 ほᐹࡼࡾ㸪ࣂ࢖࢜ࢩࣜ࢝ࡣࢼࣀ⢏Ꮚࢆ୺య࡜ࡍࡿ⢏Ꮚ࡛࠶ࡗࡓ㸦)LJ㸧㸬⣽⬊ᇵ㣴ヨ㦂࡛ࡣࢼࣀࣂ࢖࢜ࢩࣜ࢝ࡣ
⣽⬊ẘᛶࢆ࡯࡜ࢇ࡝♧ࡉ࡞࠿ࡗࡓ㸦)LJ㸧㸬ࡲࡓ㸪ᢠ⳦ᛶヨ㦂࡟࠾࠸࡚ࡣࢼࣀࣂ࢖࢜ࢩࣜ࢝༢⊂࡛ࡶⱝᖸࡢᢠ⳦ᛶࢆ♧ȣPࡋࡓࡀ㸪ᢠ⏕๣࡛࠶ࡿ࣌ࢽࢩࣜࣥࢫࢺࣞࣉࢺ࣐࢖ࢩࣥࢆᢸ
)LJ('66(0 ほᐹᣢࡉࡏࡓሙྜࡣᙉ࠸⣽⳦ቑṪᢚไࢆㄆࡵࡓ㸦)LJ㸧
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biosilica+PenStrep)LJ⣽⳦ᇵ㣴ヨ㦂մ ⤖ㄽࢼࣀࣂ࢖࢜ࢩࣜ࢝ࡣప࠸⣽⬊ẘᛶࢆ♧ࡋ㸪ᢠ⏕๣ࢆᢸᣢࡉࡏࡿࡇ࡜࡛ᙉ࠸ᢠ⳦ᛶࢆ♧ࡋࡓ㸬㸦ཧ⪃ᩥ⊩㸧 -8PHGD%)XJHWVX(1LVKLGD+0L\DML..RQGRK)ULFWLRQEHKDYLRURIQHWZRUNVWUXFWXUHG&17
FRDWLQJRQSXUHWLWDQLXPSODWH$SSO6XUI6FL'HF (1LVKLGD+0L\DML-8PHGD..RQGRKHWDO%LRORJLFDOUHVSRQVHWRQDQRVWUXFWXUHRIFDUERQQDQRWXEHWLWDQLXPFRPSRVLWHVXUIDFHV1DQR%LRPHGLFLQH-XQ㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 150 −

᰾⼥ྜ⅔ᵓ㐀ᮦᩱࡢ⥅ᡭᚤ⣽⤌⧊ホ౯ᮾி኱Ꮫ኱Ꮫ㝔 ᕤᏛ⣔◊✲⛉ ཎᏊຊᑓᨷ/ཎᏊຊᅜ㝿ᑓᨷ㜿㒊ᘯ஽ࠊྔ㔝⩧1㸬⥴ゝ
᰾⼥ྜⓎ㟁ࡣ⇞ᩱ࡟Ỉ⣲ࡢྠ఩యࢆ⏝࠸ࠊⓎ㟁࡟క࠺஧㓟໬Ⅳ⣲ࡢ᤼ฟࡀ↓࠸ࡇ࡜࠿ࡽࠊḟୡ௦࢚ࢿࣝࢠ
࣮※࡜ࡋ࡚ࡢ฼⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ᰾⼥ྜ⅔࡛ࡣࠊ᰾⼥ྜ཯ᛂࡢ㝿࡟ᨺฟࡉࢀࡿ୰ᛶᏊࢆ㐽ⶸࡋࠊࡉࡽ࡟
⇞ᩱࢆྜᡂࠊ㈓ⶶࢆᢸ࠺ᚲせࡀ࠶ࡾࠊࡇࢀࡽࢆ“ࣈࣛࣥࢣࢵࢺ”࡜࿧ࡤࢀࡿ」ྜᶵჾ࡛ᢸ࠺ࠋࡑࡢࡓࡵࠊࣈࣛ
ࣥࢣࢵࢺࡢᵓᡂᮦᩱࡣ 573 - 823 K ࡢ㧗 ࡟࠾࠸࡚㧗࢚ࢿࣝࢠ࣮୰ᛶᏊࡢ↷ᑕࢆཷࡅࡿࡓࡵࠊ㧗 ᙉᗘ≉ᛶࡸ⪏↷ᑕᛶ➼ࡢᶵ⬟ࡀồࡵࡽࢀ࡚࠾ࡾࠊࡇࡢせồࢆ‶㊊࡛ࡁࡿᮦᩱ࡜ࡋ࡚ F82H 㗰ࡀ᭷ᮃどࡉࢀ࡚࠸ࡿࠋF82H
㗰ࡣࠊ⤖ᬗ⢏ᚤ⣽໬ᙉ໬࡟ຍ࠼࡚ࠊM23C6㸦M ࡣ Cr ࡜ W ࡀ୺ᡂศ㸧࡜ MX㸦M ࡣ Ta ࡜ V ࡀ୺ᡂศ࡛࠶ࡾࠊ
X ࡣ C ࡜ N ࢆ୺ᡂศ㸧ࡢ 2 ✀㢮ࡢᯒฟ≀࡟ࡼࡿᯒฟᙉ໬ࡀ࡞ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊ㏆ᖺࡢ◊✲⤖ᯝࡼࡾࠊ⁐᥋ࡸ↷ᑕୗ࡟࠾࠸࡚ᯒฟ≀ࡢᾘ⁛ࡸ㠀ᬗ㉁໬⌧㇟ࡀሗ࿌ࡉࢀ࡚࠾ࡾ [1,2]ࠊ≉࡟ M23C6 ࡣ⢏⏺ࢆ㧗ᐦᗘ࡟⿕そࡍࡿࡇ࡜࡛㧗 ࢡ࣮ࣜࣉ◚᩿ᙉᗘࡢྥୖ࡟ᐤ୚ࡋ࡚࠾ࡾࠊࡇࡢ୙Ᏻᐃ໬ࡣ F82H 㗰ࡢ೺඲ᛶ࡟኱ࡁࡃᙳ㡪ࡍࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿࠋ ⌧ᅾࡢᅜ㝿⇕᰾⼥ྜᐇ㦂⅔㸦ITER㸧ࡢࢸࢫࢺࣈࣛࣥࢣࢵࢺࣔࢪ࣮ࣗࣝࡸ᰾⼥ྜᐇド⅔㸦DEMO ⅔㸧࡟࠾ࡅࡿᵓ㐀タィ࡛ࡣࠊࣈࣛࣥࢣࢵࢺ㒊ᮦ࡟ࡣ F82H 㗰ࢆ⏝࠸ࠊຍᅽỈᆺ㍍Ỉ⅔(PWR)࡜ྠᵝࡢ㍍Ỉ෭༷ࡀ᳨ウࡉࢀ࡚࠸ࡿࠋࡑࡢࡓࡵࠊ෭༷Ỉ㓄⟶ᮦᩱ࡜ࡋ࡚ࡣ⭉㣗≉ᛶ࡟ඃࢀࡿ SUS316L ࡢ౑⏝ࡀ᳨ウࡉࢀ࡚࠾ࡾ [3]ࠊᚲ
↛ⓗ࡟ F82H 㗰࡜ SUS316L ࡢ␗✀ᮦᩱ⁐᥋㛤Ⓨࡀᚲせ࡛ࠊࡇࡢ⁐᥋ᢏ⾡࡜ࡋ࡚㏆ᖺ◊✲㛤Ⓨࡢ㐍ࡵࡽࢀ࡚࠸
ࡿࣇ࢓࢖ࣂ࣮࣮ࣞࢨ࣮⁐᥋ἲࡢ㐺⏝ࡀ᳨ウࡉࢀ࡚࠸ࡿ [4]ࠋᙜヱᡭἲࡣࠊᚑ᮶ἲ࡟ẚ࡭⁐᥋㒊ࡢ⊃ᑠ໬ࡀྍ⬟࡛ࠊ኱Ẽ୰࡛౑⏝࡛ࡁࡿ➼ࡢ㛗ᡤࡀᣲࡆࡽࢀࡿࡀࠊࡑࡢᐇ⏝໬࡟ࡘ࠸࡚ࡣࠊ࣮ࣞࢨ࣮ฟຊࡸ㉮ᰝ㏿ᗘࠊࣅ࣮࣒ᚄࠊ⁐᥋఩⨨ࠊ⁐᥋ᚋ⇕ฎ⌮᮲௳➼ࡢ᭱㐺໬᳨ウࡀồࡵࡽࢀ࡚࠸ࡿࠋ ࡇࢀࡽࡼࡾࠊᮏ◊✲࡛ࡣࠊࣇ࢓࢖ࣂ࣮࣮ࣞࢨ࣮⁐᥋ἲ࡟ࡼࡾ᪋ᕤࡉࢀࡓ F82H 㗰࡜ SUS316L ࡟࠾ࡅࡿᚤ⣽⤌⧊࡞ࡽࡧ࡟ᶵᲔ≉ᛶ≉ᚩࡢ⁐᥋ᡭἲᙳ㡪࡜⁐᥋ᚋ⇕ฎ⌮㸦PWHT㸧ᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࠊ≉࡟ࠊF82H 㗰࡜ SUS316L ࡢ⏺㠃㒊࡟ᙧᡂࡉࢀࡿ⇕ᙳ㡪㒊㸦HAZ㸧ࡢホ౯ࢆᐇ᪋ࡋࡓࠋ࡞࠾ࠊᶵᲔ≉ᛶ࡟ࡘ࠸࡚ࡣ㉸ᚤᑠ◳ࡉヨ㦂࡟ࡼࡿホ౯ࢆヨࡳ࡚࠾ࡾࠊ୍᪉࡛ࠊᚤ⣽⤌⧊≉ᚩホ౯࡟ࡣࠊSEM ࡸ EBSD ࢆ⏝࠸ࠊᚤᑠ㒊ࡢᶵᲔ≉ᛶ࡜ᚤ⣽⤌⧊≉ᚩࢆᐃ㔞ⓗ࡟ホ౯ࡋࡓࠋ2㸬ᐇ㦂᪉ἲ
ࣇ࢓࢖ࣂ࣮࣮ࣞࢨ࣮⁐᥋ࡣࠊᯈཌ 4mm ࡢ F82H-T06LN ᮦ࡜ SUS316L ᯈᮦ㸦௨ᚋࠊSUS ࡜⛠ࡍࡿ㸧ࢆ౑⏝ࡋࡓࠋࡇࢀࡽࡢ໬Ꮫ⤌ᡂࢆ⾲ 1 ࡟♧ࡍࠋࡲࡓࠊࡇࢀࡽヨᩱࢆ✺ྜࡏࠊ࣮ࣞࢨ࣮ฟຊ 4kW ࡟࡚⁐᥋ࡋࡓࠋ࡞
࠾ࠊᮏ◊✲࡛ࡣࠊᚤ⣽⤌⧊ᙧᡂࡢ⁐᥋ᡭἲᙳ㡪ࢆホ౯ࡍࡿ┠ⓗ࠿ࡽࠊ㉮ᰝ㏿ᗘࢆ 3ࠊ4 m/min ࡜ࡋࠊࡲࡓࠊ⁐᥋⟠ᡤࢆ✺ྜࡏ㠃ୖࠊ࡞ࡽࡧ࡟ SUS ഃ࡟ 0.2 mm ࢩࣇࢺࡉࡏࡓ⁐᥋ᮦࢆస〇ࡋࡓ [5]ࠋ௨ᚋࠊࡇࢀࢆ⁐᥋ࡲ
ࡲᮦ㸦As Welded㸧࡜⛠ࡍࡿࠋࡲࡓࠊࡇࡢ⁐᥋ࡲࡲᮦ࡟ᑐࡋ࡚ 1023 K ࡟࠾࠸࡚ 3.6 ks ࡢ⁐᥋ᚋ⇕ฎ⌮ࢆ᪋ࡋࡓࠋ௨ᚋࠊᙜヨᩱࢆ⁐᥋ᚋ⇕ฎ⌮ᮦ㸦As PWHTed㸧࡜⛠ࡍࡿࠋ࡞࠾ࠊྛ⁐᥋ᮦ࡬ࡢ⁐᥋᮲௳ࢆ⾲ 2 ࡟ࡲ࡜ࡵ࡚♧ࡍࠋ ࡞࠾ࠊᮏ◊✲࡛ࡣࠊF82H ഃ࡟ᙧᡂࡉࢀࡓ⁐᥋⇕ᙳ㡪㒊㸦HAZ㸧࡜ F82H ẕ┦㒊㸦F82H㸧ࢆ୺࡞ศᯒᑐ㇟࡜
ࡋࠊ㉸ᚤᑠ◳ࡉヨ㦂ἲ࡟ࡼࡿᶵᲔ≉ᛶホ౯࡜ EBSD ἲ࡟ࡼࡿᚤ⣽⤌⧊ホ౯ࢆヨࡳ࡚࠸ࡿࡀࠊศᯒᑐ㇟㠃ࡣ࣮ࣞࢨ࣮㉮ᰝ᪉ྥ࡟ᑐࡋ࡚ᆶ┤࡞㠃࡜ࡋࠊヲ⣽ࡣᚋ㏙ࡍࡿࡀࠊEBSD ࡛ᚓࡽࢀࡓ✀ࠎࡢᚤ⣽⤌⧊࡟ࡘ࠸࡚ࡣ⏬
ീゎᯒ࡟ࡼࡾᐃ㔞ⓗ࡟ࡑࡢ≉ᚩࢆホ౯ࡋࡓ [6]ࠋ− 151 −

3㸬⤖ᯝ࠾ࡼࡧ⪃ᐹྛ⁐᥋ᮦࡢ⁐᥋ࡲࡲᮦ࡞ࡽࡧ࡟⁐᥋ᚋ⇕ฎ⌮ᮦࡢ㉸ᚤᑠ◳ࡉヨ㦂⤖ᯝࢆᅗ 1 ࡟ࡲ࡜ࡵ࡚♧ࡍ [7]ࠋ F82H
ẕ┦㔠ᒓ㒊࡜⇕ᙳ㡪㒊㸦HAZ㸧ࠊ⁐㔠㒊㸦WM㸧㡿ᇦࢆ◚⥺࡛♧ࡋ࡚࠾ࡾࠊࡇࢀࡽࡢ⏺㠃఩⨨ࡣගᏛ㢧ᚤ㙾ほᐹ࠿ࡽ᥎ᐃࡋࡓࠋࡇࢀࡽࡼࡾࠊ⁐᥋ࡲࡲᮦ࡟࠾ࡅࡿ F82H 㗰ẕ┦㒊࡟࠾ࡅࡿᖹᆒ◳ࡉࡣࠊ⁐᥋᮲௳࡟౫ࡽࡎҮ
3.8 GPa ࡛࠶ࡗࡓࡀࠊHAZ 㒊࡟࠾࠸࡚ࡣҮ 5.5 GPa ࡛࠶ࡾࠊHAZ 㒊࡟࠾ࡅࡿ᫂░࡞◳໬ࡀ☜ㄆࡉࢀࡓࠋࡇࢀ
࡟ᑐࡋࠊ⁐᥋ᚋ⇕ฎ⌮ᮦ࡛ࡣࠊF82H 㗰ẕ┦࡟࠾࠸࡚Ү0.1 GPa ⛬ᗘࡢ㌾໬ࡀ☜ㄆࡉࢀࠊࡲࡓࠊ3m/min No shift࡜ 4m/min No shift ᮦ࡟࠾ࡅࡿ HAZ 㒊࡛ࡣࠊẕ┦࡜ྠ➼ࡢ◳ࡉࡲ࡛㌾໬ࡋࡓࠋࡋ࠿ࡋ࡞ࡀࡽࠊ4m/min 0.2 mm
shift ᮦ࡛ࡣ㌾໬ࡏࡎ࡟ࠊ⁐᥋ࡲࡲᮦ࡜ྠ➼ࡢ◳ࡉࢆ⥔ᣢࡋ࡚࠸ࡓࠋ
ᅗ 2 ࡟ 3m/min No shift ᮦࡢ EBSD ⤖ᯝ࡜ࡋ࡚ image quality (IQ) ࡜ inverse pole figure (IPF) ࠊgrainboundary (GB) ࠊKernel average misorientation (KAM) ീࢆ♧ࡋࡓࠋ࡞࠾ࠊGB ീ࡛ࡣࠊ⤖ᬗ⢏⏺࡟࠾ࡅࡿ᪉఩ࡉࢆ>3 o, 10 o < 15 o, >15o ࡛ᐃ⩏ࡋ࡚࠾ࡾࠊࡇࢀࡽࡢ⢏⏺ࢆ㉥ࠊ㟷ࠊ⥳⥺࡛♧ࡋࡓࠋࡲࡓࠊKAM ീ࡟
࠾ࡅࡿゅᗘศᕸࡣ 0 < 3o ࡜ࡋࡓࠋࡇࢀࡽࡼࡾࠊ⁐᥋ࡲࡲᮦ࡟࠾ࡅࡿ IQ ീ࡛ࡣࠊF82H 㗰ࡢẕ┦࡟ࡃࡽ࡭ HAZ㒊ࡢࢥࣥࢺࣛࢫࢺࡀ᫂ࡽ࠿࡟పࡃࠊ⁐᥋ᚋ⇕ฎ⌮ࢆ᪋ࡍࡇ࡜࡛ࠊF82H 㗰ẕ┦࡜ྠ⛬ᗘࡢࢥࣥࢺࣛࢫࢺ࡜࡞
ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡲࡓࠊIPF ࡞࠸ࡋ GB ീ࡛ࡣࠊ⁐᥋ࡲࡲᮦ࡟࠾ࡅࡿ HAZ 㒊࡛ࡣࠊ⤖ᬗ⢏ᚄࡢⴭࡋ࠸⣽⢏໬ࡀᅗࡽࢀ࡚࠾ࡾࠊ⁐᥋ᚋ⇕ฎ⌮࡟ࡼࡾࠊⱝᖸࡢ⢏ᡂ㛗ࡀ☜ㄆࡉࢀࡿࡶࡢࡢࠊ౫↛࡜ࡋ࡚ F82H ẕ┦࡟ẚ࡭⢏ᚄࡀᑠࡉ࠸ഴྥ࡟࠶ࡗࡓࠋ࡞࠾ࠊKAM ീ࠿ࡽࡣࠊ⁐᥋ᮦ࡟࠾ࡅࡿ HAZ 㒊࡛㧗࠸ࡦࡎࡳࢆ᭷ࡋ࡚࠸ࡿࡇ
࡜ࡀ☜ㄆࡉࢀࠊࡇࢀࡀ⁐᥋ᚋ⇕ฎ⌮࡟ࡼࡾẕ┦⛬ᗘࡲ࡛ᅇ᚟ࡍࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
ᅗ 3 ࡟ྛ⁐᥋ᮦ࡟࠾ࡅࡿ F82H ẕ┦㒊࡜ HAZ 㒊ࡢ⁐᥋ࡲࡲࠊ࡞ࡽࡧ࡟⁐᥋ᚋ⇕ฎ⌮ᚋࡢᖹᆒ KAM ್ࢆ⧳ࡵ࡚♧ࡍࠋ࡞࠾ࠊࡇࡢᖹᆒ KAM ್ࡣࠊᅗ 2 ࡟࠾ࡅࡿ KAM ീࢆ 256 㝵ㄪ໬ࡉࡏࠊࡑࡢᚋࠊ⁐᥋᪉ྥ࡟ᑐࡋ
࡚ᆶ┤᪉ྥࡢࣛ࢖ࣥศᯒࡋࡓ㝿ࡢ F82H ẕ┦࡞ࡽࡧ࡟ HAZ 㒊࡟࠾ࡅࡿᖹᆒ್࡛࠶ࡿࠋ࡞࠾ࠊࡇࡢ᪉ἲ࡟ࡼ
ࡾࠊᚤ⣽⤌⧊ࡢ࣮ࣟ࢝ࣝ࡞᝟ሗࢆᢳฟ࡛ࡁࡿࠋࡇࢀࡽࡼࡾࠊF82H ẕ┦࡛ࡣࠊ⁐᥋ࡲࡲᮦࠊ࡞ࡽࡧ࡟⁐᥋ᚋ⇕ฎ⌮ᮦ࡟࠾ࡅࡿᖹᆒ KAM ್ࡣᴫࡡ 0.7 ࡛࠶ࡾࠊ⁐᥋᪉ἲ࡟౫Ꮡࡋ࡞࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋ୍᪉࡛ࠊ⁐᥋ࡲࡲᮦ࡟࠾ࡅࡿ HAZ 㒊࡛ࡢᖹᆒ KAM ್ࡣ 1.0 ⛬ᗘ࠶ࡾࠊ⁐᥋ᚋ⇕ฎ⌮ᚋ࡟ࡣࠊ0.7 ⛬ᗘࡲ࡛ῶᑡࡋࠊẕ┦࡜ྠ⛬ᗘࡢࡦࡎࡳࡲ࡛ᅇ᚟ࡋࡓࠋ
ᅗ 4 ࡟ྛ⁐᥋ᮦ࡟࠾ࡅࡿ F82H ẕ┦㒊࡜ HAZ 㒊ࡢ⁐᥋ࡲࡲࠊ࡞ࡽࡧ࡟⁐᥋ᚋ⇕ฎ⌮ᚋࡢᖹᆒ⢏ᚄࢆࡲ࡜ࡵ
࡚♧ࡍࠋ࡞࠾ࠊᅗ 2 ࡟♧ࡋࡓࡼ࠺࡟ࠊ⤖ᬗ⢏⏺࡟࠾ࡅࡿゅᗘ᪉఩ࡉࡀ>3 o, 10 o < 15 o, >15o ࠿ࡽ࡞ࡿ⤖ᬗ⢏⏺
ࡢᖹᆒ⤖ᬗ⢏ᚄ⤖ᯝࢆ༊ูࡋ࡚♧ࡋࡓࠋ⁐᥋ᚋ⇕ฎ⌮ࡢ᭷↓࡟౫ࡽࡎࠊ㧗ഴゅ⢏⏺࠿ࡽ࡞ࡿ⤖ᬗ⢏࡟࠾࠸࡚ᖹᆒ⤖ᬗ⢏ᚄࡀ⢒኱࡞ഴྥ࡟࠶ࡗࡓࠋࡉࡽ࡟ࠊF82H ẕ┦ࡢ⤖ᬗ⢏ᚄࡣ HAZ 㒊ࡢ 2 ಸ⛬ᗘ࡛࠶ࡾࠊ⁐᥋⇕ᙳ㡪࡟ࡼࡗ࡚Țᇦࡲ࡛᪼ ࡉࢀࠊࡑࡢᚋࡢ෭༷㐣⛬࡟⏕ࡌࡓ࣐ࣝࢸࣥࢧ࢖ࢺኚែࡢࡼࡗ࡚ࠊ⤖ᬗ⢏ᚄࡀᚤ⣽໬ࡋࡓ࡜᥎ ࡉࢀࡿࠋ࡞࠾ࠊ୍㒊ࡢ F82H 㗰ẕ┦㸦3m/min No shift ᮦ, 3m/min 0.2 mm shift ᮦ㸧࡛ࡣࠊ⁐᥋ᚋ⇕ฎ⌮࡟ࡼࡾ⤖ᬗ⢏ᚄࡢ⢒኱໬ࡀ☜ㄆࡉࢀ࡞࠿ࡗࡓࡀࠊHAZ 㒊࡟࠾࠸࡚ࡣ඲⁐᥋᮲௳࡟࠾࠸࡚⤖ᬗ⢏ᚄࡢ⢒኱໬ࡀ☜ㄆࡉࢀࡓࠋࡇࢀࡣࠊ࣐ࣝࢸࣥࢧ࢖ࢺኚែࡢ㝿࡟ᑟධࡉࢀࡓ᱁Ꮚࡦࡎࡳࠊ࡞࠸ࡋࡦࡎࡳ࢚ࢿࣝࢠ࣮ࢆ㥑ືຊ࡜ࡋࡓ⢏ᡂ㛗ࡀ㢧ⴭ࡟⏕ࡌࡓࡓࡵ࡜᥎ ࡉࢀࡿࠋ ࡇࢀࡽࡼࡾࠊ⁐᥋ࡲࡲᮦ࡟࠾ࡅࡿ HAZ 㒊ࡢ◳໬せᅉ࡜ࡋ࡚ࡣࠊ⁐᥋⇕ᙳ㡪࡟ࡼࡿ࣐ࣝࢸࣥࢧ࢖ࢺኚែࢆ
కࡗࡓ⤖ᬗ⢏ᚄࡢᚤ⣽໬࡜ṧ␃ࡦࡎࡳᙳ㡪ࠊ࡞ࡽࡧ࡟ࠊ๓ᖺᗘ࡟ሗ࿌ࡋࡓ HAZ 㒊࡟࠾ࡅࡿᚤ⣽⤌⧊ホ౯ࡼࡾࠊࡇࢀࡽࡢ㡿ᇦ࡟࠾࠸࡚ᚤ⣽Ⅳ໬≀ࡀᾘኻࡍࡿࡇ࡜࠿ࡽࠊᯒฟᙉ໬ศࡢῶᑡࡢ㔜␚ᙳ㡪࡟౫Ꮡࡋࡓ◳ࡉኚ໬ࡀ㉳ࡇࡗ࡚࠸ࡿ࡜ゎ㔘ࡉࢀࡿࠋ୍᪉࡛ࠊ⁐᥋ᚋ⇕ฎ⌮ᮦࡢ HAZ 㒊࡟࠾࠸࡚ࡣࠊF82H 㗰ࡢẕ┦㒊࡜ྠ⛬ᗘࡢࡦࡎࡳ㔞࠿ࡘ⤖ᬗ⢏ᚄࡀᚤ⣽໬ࡋ࡚࠸ࡿࡢ࡟ࡶ㛵ࢃࡽࡎࠊ
F82H 㗰ẕ┦࡜ྠ⛬ᗘࡢ◳ࡉ≉ᛶࢆ᭷ࡋ࡚࠸ࡓࠋ
ࡇࡢࡇ࡜࠿ࡽࠊ⁐᥋ᚋ⇕ฎ⌮ᮦ࡟࠾ࡅࡿ HAZ 㒊ࡢ◳ࡉኚ໬࡟ࡘ࠸࡚ࡣࠊPWHT ࡟ࡼࡿࡦࡍࡳࡢᅇ᚟࡜ࠊヲ⣽ࡣ๭ឡࡍࡿࡀࠊᚤ⣽Ⅳ໬≀࡟ࡼࡿᯒฟᙉ໬࡜ࡢ㔮ࡾྜ࠸࡟ࡼࡗ࡚⏕ࡌࡓ⤖ᯝ࡜ゎ㔘ࡉࢀࡿࠋ− 152 −

4㸬ࡲ࡜ࡵ
ඛ㐍⁐᥋ᢏ⾡࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࣇ࢓࢖ࣂ࣮࣮ࣞࢨ࣮⁐᥋ࢆ᰾⼥ྜ⅔ᵓ㐀ᮦᩱೃ⿵ᮦࡢ F82H 㗰࡜
SUS316L ࡢ␗ᮦ᥋ྜ࡟㐺ᛂࡋࠊF82H 㗰ഃ࡟ᙧᡂࡉࢀࡿ HAZ 㒊ࡢᶵᲔ≉ᛶࡸᚤ⣽⤌⧊≉ᚩࡢ⁐᥋᮲௳ᙳ㡪࡞ࡽࡧ࡟ࠊ⁐᥋ᚋ⇕ฎ⌮ᙳ㡪ࢆ㉸ᚤᑠ◳ࡉヨ㦂࡜ EBSD ࠿ࡽホ౯ࡋࡓࠋࡑࡢ⤖ᯝࠊ⁐᥋ࡲࡲᮦ࡟࠾࠸࡚ HAZ 㒊࡟࠾ࡅࡿ◳໬࡜ࠊᙜヱ⟠ᡤࡢ⁐᥋ᚋ⇕ฎ⌮࡟ࡼࡿ㌾໬ࡀ☜ㄆࡋࡓࠋࡲࡓࠊEBSD ࡟ࡼࡿ✀ࠎࡢᚤ⣽≉ᚩࡢᐃ㔞ホ౯࠿ࡽࠊ⁐᥋ᮦ࡜⁐᥋ᚋ⇕ฎ⌮ᮦࡢ F82H 㗰ẕ┦㒊࡜ HAZ 㒊࡟࠾ࡅࡿ◳໬࡞࠸ࡋ㌾໬ᙳ㡪࡜ᚤ⣽⤌⧊࡜ࡢ┦㛵࡟ࡘ࠸࡚᫂ࡽ࠿࡟ࡋࡓࠋ
ཧ⪃ᩥ⊩[1] T. Sawai et al., J. Nucl. Mater. 283 (2000) 657-661.
[2] H. Tanigawa et al., J. Nucl. Mater. 329-333 (2004) 283-288.

[3] T. Hirose et al., Fusion Engineering and Design 86 (2011) 2265-2268.
[4] H. Tanigawa et al., Fusion and Engineering Design 83 (2008) 1471-1476.
[5] H. Serizawa et al., Fusion Eng. Des. 88 (2013) 2466-2470.
[6] S. Kano et.al., Mechanical Engineering Letters, Vol. 2 (2016) p.15-00481.
[7] S. Kano et.al., Nuclear Materials and Energy, 9 (2016) 300-305.

⾲ 1 ヨᩱࡢ໬Ꮫ⤌ᡂ (wt.%)⾲ 2 ྛ⁐᥋ᮦࡢ⁐᥋᪉ἲ− 153 −

ᅗ 1 ྛ⁐᥋ᮦࡢ⁐᥋ࡲࡲ㸦As Welded㸧࡞ࡽࡧ࡟⁐᥋ᚋ⇕ฎ⌮ᚋ㸦As PWHTed㸧ࡢ㉸ᚤᑠ◳ࡉヨ㦂⤖ᯝ. F82H ẕ┦㔠ᒓ㒊࡜⇕ᙳ㡪㒊㸦HAZ㸧ࠊ⁐㔠㒊㸦WM㸧㡿ᇦࢆ◚⥺࡛♧ࡋࡓ.

ᅗ 2 3m/min No shift ᮦࡢ EBSD ⤖ᯝ. ࡇࡇ࡛ࡣࠊimage quality (IQ) ࡜ inverse pole figure (IPF) ࠊgrain boundary (GB) ࠊKernel average misorientation (KAM) ീࢆ♧ࡋ࡚࠾ࡾࠊGB ീ࡛ࡣࠊ⤖ᬗ⢏⏺࡟࠾ࡅࡿ᪉఩ࡉࢆ>3 o, 10 o < 15 o, >15o ࡛ᐃ⩏ࡋࡓ⤖ᯝࢆࡑࢀࡒࢀࠊ㉥ࠊ㟷ࠊ⥳⥺࡛♧ࡋ࡚࠾ࡾࠊ
ࡲࡓࠊKAM ീ࡟࠾ࡅࡿゅᗘศᕸࡣ 0 < 3o ࡜ࡋࡓ.

− 154 −

ᅗ 3 ྛ⁐᥋ᮦ࡟࠾ࡅࡿ F82H ẕ┦㒊࡜ HAZ 㒊ࡢ⁐᥋ࡲࡲࠊ࡞ࡽࡧ࡟⁐᥋ᚋ⇕ฎ⌮ᚋࡢᖹᆒ KAM ್ᅗ 4 ྛ⁐᥋ᮦ࡟࠾ࡅࡿ F82H ẕ┦㒊࡜ HAZ 㒊ࡢ⁐᥋ࡲࡲࠊ࡞ࡽࡧ࡟⁐᥋ᚋ⇕ฎ⌮ᚋࡢᖹᆒ⢏ᚄ.
⤖ᬗ⢏⏺࡟࠾ࡅࡿゅᗘ᪉఩ࡉࡀ>3, o 10 o < 15 o, >15o ࡢᖹᆒ⤖ᬗ⢏ᚄ⤖ᯝࢆ༊ูࡋ࡚♧ࡋࡓ.

㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝㸧− 155 −

ᘓ㐀࠿ࡽရ㉁࣭Ᏻ඲ᛶ࣭ᑑ࿨ࡲ࡛ホ౯ྍ⬟࡞ᅄḟඖྍど໬ CAE ࢩࢫࢸ࣒ࡢ㛤Ⓨᮾி⌮⛉኱Ꮫ⌮ᕤᏛ㒊ᶵᲔᕤᏛ⛉
ᒸ⏣⿱
㐟బὈ⣖
1. ᗎㄽ
 ୍⯡࡟ࠊ⁐᥋ࢆᐇ᪋ࡍࡿ࡜ṧ␃ᛂຊࡀ⏕ࡌࠊṧ␃ᛂຊࡣࡁ⿣㐍ᒎࡢ㥑ືຊ࡟࡞ࡿࠋࡁ⿣ࡢ㐍ᒎᣲືࡣᵓ㐀≀ࡢᏳ඲ᛶࡸᑑ࿨࡟኱ࡁࡃᙳ㡪ࡍࡿࠋࡇࡢ஦㇟ࢆࢩ࣑࣮ࣗࣞࢩࣙࣥࡍࡿࡓࡵ࡟ࡣࠊ⁐᥋᪋ᕤ᮲௳ࢆ㐺ษ࡟ࣔࢹࣝ໬ࡋࡓ⇕ᙎረᛶゎᯒ࡜ࠊṧ␃ᛂຊࢆ⪃៖ࡋࡓࡁ⿣㐍ᒎゎᯒࡢ஧ࡘࡀᚲせ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊ⁐᥋ゎᯒ⤖ᯝ࡛࠶ࡿṧ␃ᛂຊ࡟㥑ືࡉࢀࡿࡁ⿣㐍ᒎࡢゎᯒࢩࢫࢸ࣒࡜ࠊࡑࢀࢆ⏝࠸ࡓᐇᵓ㐀ࡢ㧗⢭ᗘ࡞ࡁ⿣㐍ᒎゎᯒࢆ⾜ࡗ࡚࠸ࡿࠋᮏሗ࿌࡛ࡣࠊࡁ⿣㐍ᒎゎᯒࢩࢫࢸ࣒ࢆ⏝࠸ࡓཎᏊ⅔ຍᅽჾ⟶ྎࡢ⁐᥋⥅ᡭࡢᛂຊ⭉㣗๭ࢀ㐍ᒎゎᯒࢆ♧ࡍࠋ≉࡟ࠊ⁐᥋㔠ᒓ㒊࡟࠶ࡿࡁ⿣ࡀ㐍ᒎࡋࠊẕᮦ࡜ࡢ␗ᮦ⏺㠃࡟฿㐩ࡍࡿࢩࢳ࢚࣮ࣗࢩࣙࣥࡢ᳨
ウࢆ⾜ࡗࡓࠋᮏゎᯒࢩࢫࢸ࣒ࢆ⏝࠸ࡿࡇ࡜࡛ࠊࡁ⿣ࡀ⁐᥋㔠ᒓ࡜ẕᮦࡢ␗ᮦ⏺㠃࡟฿㐩ࡋࡓᚋࠊ࡝ࡢࡼ࠺࡟
ᙧ≧ࢆኚ໬ࡉࡏ࡞ࡀࡽ㐍ᒎࡍࡿ࠿ࢆヲ⣽࡟ゎᯒࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ
2. ⁐᥋ṧ␃ᛂຊ࡟㥑ືࡉࢀࡿࡁ⿣㐍ᒎゎᯒࢩࢫࢸ࣒
 ᅗ 1 ࡟ࡁ⿣㐍ᒎゎᯒࢩࢫࢸ࣒ࡢὶࢀࢆ♧ࡍࠋ᭱ึ࡟ࠊᅄ㠃య஧ḟせ⣲࠿ࡽᡂࡿࡁ⿣௜ࡁ࣓ࢵࢩࣗࢆసᡂࡍࡿࠋࡑࡋ࡚ࠊࡑࡢ࣓ࢵࢩࣗ
࡟ᑐࡋ࡚⁐᥋ゎᯒ⤖ᯝࡢṧ␃ᛂຊࢆ࣐ࢵࣆࣥࢢࡋࠊ᭷㝈せ⣲ゎᯒࢆ⾜࠺ࡇ࡜࡛⮬ᕫࡘࡾྜ࠸≧ែࡢṧ␃ᛂຊࢆồࡵࡿࠋ⥆࠸࡚ࠊṧ␃ᛂຊ࠿ࡽࡁ⿣㠃Ⲵ㔜ࢆồࡵࠊࡑࢀࢆࡁ⿣㠃࡟௜୚ࡋ࡚᭷㝈せ⣲ゎᯒࢆ⾜࠺ࠋ᭷㝈せ⣲ゎᯒࡢ⤖ᯝ࠿ࡽࠊᅄ㠃య஧ḟせ⣲⏝ࡢ௬᝿ࡁ⿣㛢ཱྀ✚ศἲ [1] ࢆ⏝࠸࡚ࡁ⿣๓⦕ࡢᛂຊᣑ኱ಀᩘࢆィ⟬ࡍࡿࠋ᭱ᚋ࡟ࠊ
ࡁ⿣㐍ᒎ๎࡟ᚑࡗ࡚ࡁ⿣ᙧ≧ࢆ᭦᪂ࡋࠊ෌ࡧ᭱ึࡢᕤ⛬࡟ᡠࡿࠋᅗ 1) ࡁ⿣㐍ᒎゎᯒࢩࢫࢸ࣒ࡢὶࢀ
3. ཎᏊ⅔ຍᅽჾ⟶ྎࡢ⁐᥋⥅ᡭࡢᛂຊ⭉㣗๭ࢀ㐍ᒎゎᯒ ཎᏊ⅔ຍᅽჾ⟶ྎࡢ⁐᥋⥅ᡭࡢᛂຊ⭉㣗๭ࢀゎᯒࢆᐇ᪋ࡋࡓࠋ౑⏝ࡋࡓṧ␃ᛂຊࡣࠊMaekawa et al. [2] ࡀᐇ᪋ࡋࡓ⁐᥋ゎᯒࡢ⤖ᯝ࡛࠶ࡾࠊࡑࡢࢹ࣮ࢱࢆ᥋ྜ⛉Ꮫ◊✲ᡤ࠿ࡽ㡬࠸ࡓࠋ ᛂຊ⭉㣗๭ࢀࡢ㐍ᒎ๎ࡣ Hojo and Kamaya [3] ࡢᘧdadtª Q§ 11 ·¸ ºexp «  ¨ »D r K  K th E¨¸«¬ R © Ta Ta , ref ¹ »¼

(1)ࢆ⏝࠸ࡓࠋࡓࡔࡋࠊda/dt ࡣࡁ⿣㐍ᒎ㏿ᗘࠊK ࡣᛂຊᣑ኱ಀᩘࠊKth ࡣୗ㝈⏺ᛂຊᣑ኱ಀᩘࠊQ ࡣάᛶ໬࢚ࢿ
ࣝࢠ࣮ࠊR ࡣẼయᐃᩘࠊTa ࡣ↷

ᗘࠊTa,ref ࡣཧ↷ᗘࠊȘrࠊșࡣᮦᩱᐃᩘ࡛࠶ࡿࠋᮏ◊✲࡛ࡣᗘ࠾ࡼࡧཧᗘࢆ࠸ࡎࢀࡶ 325Υ࡟タᐃࡋࡓࡓࡵࠊᘧ (1) ࡢゅᣓᘼࡢ୰ࡣࢮࣟ࡜࡞ࡿࠋ⁐᥋㔠ᒓ࡛ࡣȘrࠊșࢆࡑࢀࡒࢀ 1.7110-14ࠊ2.41ࠊẕᮦ࡛ࡣࡑࢀࡒࢀ 2.3510-13ࠊ1.16 ࡜ࡋࡓࠋ ⟶ྎࣔࢹࣝࡢᑍἲࢆᅗ 2 ࡟♧ࡍࠋࡁ⿣㐍ᒎゎᯒࡢ᭱ึࡢ࣓ࢵࢩࣗࢆᅗ 3ࠊᅗ 4ࠊᅗ 5 ࡟♧ࡍࠋゎᯒࣔࢹࣝࡣᑐ⛠ᛶ࠿ࡽ 1/2 ࣔࢹࣝ࡟ࡋࠊ๛య࣮ࣔࢻࢆᣊ᮰ࡋࡓࠋ⁐᥋㔠ᒓෆ࡟㍈᪉ྥࡢࡁ⿣ࢆ௬ᐃࡋࡓࠋࡇࡢࡁ⿣ࡢ῝ࡉࡣ⫗ཌࡢ 30%ࠊ࢔ࢫ࣌ࢡࢺẚࡣ 2.625 ࡛࠶ࡿࠋᅗ 6 ࡟ࡁ⿣ᙧ≧ࡢኚ໬࠾ࡼࡧṧ␃ᛂຊศᕸࢆ♧ࡍࠋ⁐᥋㔠ᒓෆ࡛ࡣࠊࡁ⿣ࡣᴫࡡ࢔ࢫ࣌ࢡࢺẚࢆಖࡗࡓࡲࡲ㐍ᒎࡍࡿࡀࠊࡁ⿣๓⦕ࡢྑୖࡢ㒊ศࡀẕᮦ࡜ࡢ␗ᮦ⏺㠃࡟฿㐩ࡋࡓᚋࠊࡇࡢ㒊ศࡢ࿘㎶ࡣࡁ⿣ࡀ࡯࡜ࢇ࡝㐍ᒎࡋ࡞ࡃ࡞ࡿࡇ࡜ࡀࢃ࠿ࡿࠋᅗ 7 ࡟ࡁ⿣๓⦕ࡢᛂຊᣑ኱
ಀᩘࡢ᥎⛣ࢆ♧ࡍࠋᶓ㍈ࡀࡁ⿣๓⦕ࡢṇつ໬ᗙᶆࠊ⦪㍈ࡀᛂຊᣑ኱ಀᩘ࡛࠶ࡿࠋ᭱ึ࡟␗ᮦ⏺㠃࡟฿㐩ࡍࡿ− 156 −ṇつ໬ᗙᶆ 0.7 ࡢ௜㏆࡛ࡣࠊࡁ⿣ࡀ㐍ᒎࡍࡿ࡟ࡘࢀ࡚ᛂຊᣑ኱ಀᩘࡀᚎࠎ࡟኱ࡁࡃ࡞ࡿࡇ࡜ࡀࢃ࠿ࡿࠋ

ᅗ 3) ⟶ྎࣔࢹࣝࡢ࣓ᅗ 4) ⟶ྎࣔࢹࣝࡢ࣓ࢵ

ࢵࢩࣗࢩࣗࡢ᩿㠃ᅗᅗ 5) ⟶ྎࣔࢹࣝࡢ࣓ࢵࢩ
ࣗࡢ᩿㠃ᅗࡢࡁ⿣㏆ഐࡢᣑ኱ᅗᅗ 2) ⟶ྎࣔࢹࣝࡢᑍἲᅗ 6) ࡁ⿣ᙧ≧ࡢኚ໬࠾ࡼࡧṧ␃ᛂຊศᕸ

ᅗ 7) ࡁ⿣๓⦕ࡢᛂຊᣑ኱ಀᩘࡢ᥎⛣4. ⤖ㄽ ⁐᥋ṧ␃ᛂຊࢆ⪃៖ࡋࡓࡁ⿣㐍ᒎゎᯒࢩࢫࢸ࣒ࢆ⏝࠸ࠊཎᏊ⅔ຍᅽჾ⟶ྎࡢ⁐᥋⥅ᡭࡢᛂຊ⭉㣗๭ࢀ㐍ᒎゎᯒࢆᐇ᪋ࡋࡓࠋࡁ⿣๓⦕ࡢ୍㒊ࡀ⁐᥋㔠ᒓ࡜ẕᮦ࡜ࡢ␗ᮦ⏺㠃࡟฿㐩ࡋࡓᚋࡢࡁ⿣ᙧ≧ࢆ⢭⦓࡟ࢩ࣑ࣗࣞ
࣮ࢩࣙࣥࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ ௒ᚋࡣࠊ␗ᮦ⏺㠃࡟ἢ࠸࡞ࡀࡽ⁐᥋㔠ᒓෆࢆ῝ࡃ㐍ᒎࡍࡿᛂຊ⭉㣗๭ࢀࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗ࡚࠸ࡃணᐃ࡛࠶ࡿࠋ
5. ཧ⪃ᩥ⊩[1]

Okada, H, Kawai, H, Araki, K. A Virtual Crack Closure-Integral Method (VCCM) to Compute theEnergy Release Rates and Stress Intensity Factors based on Quadratic Tetrahedral Finite
Elements. Engineering Fracture Mechanics 2008; 75: 4466–4485.

[2]

Maekawa, A, Kawahara, A, Serizawa, H, Murakawa, H. Prediction of Weld Residual Stress in a
Pressurized Water Reactor Pressurizer Surge Nozzle. Journal of Pressure Vessel Technology 2016;
138: 021401-1.

[3]

Hojo, K, Kamaya, M. JSME FFS Rule Making of Flaw Evaluation for Nickel Based Alloy
Components. Trans JSME Series A 2011; 783-788.
(ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝)− 157 −

࣮ࣞࢨ࣮⁐᥋࡟ࡼࡿࢭ࣑ࣛࢵࢡ㸫㔠ᒓᮦᩱࡢ᥋ྜ࡟㛵ࡍࡿ◊✲㛤Ⓨᐊ⹒ᕤᴗ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ᓊᮏ ᘯ❧㸪ᮔ ᓧ⚽㸪୰㔛 ┤ྐ㸪⚄⏣ ༓ᬛ㸪ᮅ಴ ຬ㈗1㸬ㅖゝᮾ᪥ᮏ኱㟈⅏࡟ࡼࡿ㟁ຊ႙ኻ࡟ࡼࡾⓎ⏕ࡋࡓࠊ⚟ᓥ➨୍ཎᏊຊⓎ㟁ᡤ࡛ࡢ⅔ᚰ⁐⼥ࢆ࡜ࡶ࡞ࡗࡓ஦ᨾ௨㝆ࠊ㍍
Ỉ⅔ࡢ⅔ᚰ㒊ࡢᏳ඲ᛶྥୖࢆ┠ⓗ࡜ࡋ࡚஦ᨾ⪏ᛶ⇞ᩱ㸦ATF : Accident Tolerant Fuel㸧࡟㛵㐃ࡋࡓ◊✲㛤Ⓨࡀࠊ⡿ᅜࢆ୰ᚰ࡟඲ୡ⏺࡛✚ᴟⓗ࡟⾜ࢃࢀ࡚࠸ࡿࠋࡑࡢ୍ࡘ࡜ࡋ࡚ࠊᚑ᮶ࡢࢪࣝ࢝ࣟ࢖⇞ᩱ⿕そ⟶࠿ࡽⅣ໬⌛⣲⧄⥔ᙉ໬Ⅳ໬⌛⣲」ྜᮦᩱ㸦SiC/SiC 」ྜᮦᩱ㸧ࢆ⏝࠸ࡓ⇞ᩱ⿕そ⟶ࡢ㛤Ⓨࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋࡇࢀࡲ࡛࡟ NITE ἲ࡟ࡼࡾࠊ
㧗࠸ He Ẽᐦᛶࢆ᭷ࡍࡿ SiC/SiC ෇⟶ࡢస〇࡟ᡂຌࡋ࡚࠸ࡿ[1]ࡀࠊ௒ᚋࡢ↷ᑕ◊✲ࡸᐇ⏝໬࡟ྥࡅ࡚ࠊSiC/SiC 」ྜ
ᮦᩱ⿕そ⟶➃㒊ࡢᑒṆᢏ⾡㛤Ⓨࡀ㔜せㄢ㢟ࡢ୍ࡘ࡜࡞ࡗ࡚࠸ࡿࠋ
➃ᰦᑒṆ࡛ࡣ᰾ศ⿣⏕ᡂ≀ࢆእ㒊࡟ᨺฟࡋ࡞࠸ࡓ
ࡵࡢ༑ศ࡞Ẽᐦᛶ࡜ᶵᲔ≉ᛶࢆ᭷ࡋࠊ࠿ࡘ᰾⇞ᩱࢆ⿦Ⲵࡋࡓ≧ែ࡛సᴗࡀฟ᮶ࡿࡼ࠺ࠊྍ⬟࡞㝈ࡾ⡆౽࡞᥋ྜ᪉ἲ
ࡀồࡵࡽࢀࡿࠋ
ࡑࡇ࡛ᮏ◊✲࡛ࡣ⌧⾜ࡢࢪࣝ࢝ࣟ࢖⿕そ⟶࡟ࡶ㐺⏝ࡉࢀ࡚࠸ࡿ࣮ࣞࢨ࣮⁐᥋࡟╔┠ࡋࡓࠋࡇࢀࡲ࡛࡟ࣇ࢓࢖ࣂ
࣮࣮ࣞࢨ࣮ࢆ⏝࠸࡚᥋ྜయࡢస〇ࢆ㐍ࡵ࡚ࡁࡓ[2]ࡀࠊ༑ศ࡞Ẽᐦᛶࢆᚓࡿࡇ࡜ࡣฟ᮶࡚࠾ࡽࡎࠊ᪂ࡓ࡞ᡭἲ࡜ࡋ࡚ࠊ
㔠ᒓ⢊ࢆ SiC/SiC 」ྜᮦᩱ⿕そ⟶࡟ࡡࡌຍᕤࢆ᪋ࡋࡓ㒊ศ࡟ᇙࡵ㎸ࡳࠊ࣮ࣞࢨ࣮࡛ࢪࣝ࢝ࣟ࢖෇⟶࠾ࡼࡧ㔠ᒓ⢊ࢆ୍㒊⁐⼥ࡉࡏࡿࡇ࡜࡟ࡼࡿẼᐦᛶࡢ☜ಖࢆヨࡳࡓࠋ2㸬ᐇ㦂᪉ἲ
ᮏ◊✲࡛ࡣࠊNITE ἲ࡟ࡼࡾస〇ࡉࢀࡓ SiC/SiC 」ྜᮦᩱ⿕そ⟶࡜⌧≧౑⏝ࡉࢀ࡚࠸ࡿࢪࣝ࢝ࣟ࢖⟶࡟ࡡࡌຍᕤ
ࢆ᪋ࡋࠊSiC/SiC ෇⟶ഃ࡟㔠ᒓ⢊ࢆᇙࡵ㎸ࢇࡔᚋ࡟ࢪࣝ࢝ࣟ࢖෇⟶ࢆ⿦╔ࡋࡓࠋ౑⏝ࡋࡓ㔠ᒓ⢊ࡣࠊࢭ࣑ࣛࢵࢡ࡜
ࡢ᥋ྜ࡟ࡶ฼⏝ࡉࢀࢪࣝࢥࢽ࣒࢘࡜඲⋡ᅛ⁐ࡍࡿ⣧ࢳࢱࣥ⢊ᮎ㸦⢏ᚄ㸸㹼40ȣm㸧ࢆ౑⏝ࡋࡓࠋ࣮ࣞࢨ࣮ฟຊ 500W
࡜ࡋࠊᅇ㌿㏿ᗘࡣ 50㹼60rpmࠊ࣮ࣞࢨ࣮↷ᑕ᫬㛫 2.2㹼2.6s ࡛∦ഃ 2 ࠿ᡤࠊィ 4 ࠿ᡤ࡟࣮ࣞࢨ࣮⁐᥋ࢆᐇ᪋ࡋࡓࠋ
⁐᥋ᚋヨ㦂యࡣ∦ഃ࡟ࢩࣜࢥ࣮ࣥᶞ⬡ࡢᰦࢆ⿦╔ࡋࠊỈἐࡉࡏࠊ཯ᑐഃ࠿ࡽ✵Ẽࢆ㏦ࡾ㎸ࡴᾮἐヨ㦂࡟ࡼࡾ⡆᫆࡞Ẽᐦᛶࢆホ౯ࡋࡓࠋࡑࡢᚋࠊᶞ⬡࡟ᇙࡵ㎸ࡳࠊ෇⟶ࡢ㛗㍈᪉ྥ࡟ษ᩿ࠊ◊☻ᚋࢆ⾜ࡗࡓᚋ࡟࣮ࣞࢨ࣮↷ᑕ㒊ศࢆ
FE-SEMࠊEDS ࡛ᚤ⣽⤌⧊ほᐹࢆᐇ᪋ࡋࡓࠋ
3㸬ᐇ㦂⤖ᯝ࡜⪃ᐹ
ᅗ 1 ࡟ࡡࡌຍᕤᚋࡢ SiC/SiC ෇⟶ࠊSiC/SiC ෇⟶࡜ࢪࣝ࢝ࣟ࢖෇⟶ࡢ࣮ࣞࢨ࣮↷ᑕ๓ࠊ࣮ࣞࢨ࣮↷ᑕᚋࡢヨ㦂యࢆ♧ࡍࠋእほୖࠊ࣮ࣞࢨ࣮↷ᑕ㒊௨እ࡟኱ࡁ࡞ኚ໬ࡣ☜ㄆࡉࢀࡎࠊ┠ど࡟ࡼࡿ෇⟶ෆ㒊ࡢほᐹ࡟࠾࠸࡚ࡶ᫂☜࡞ࢡࣛࢵࢡ➼ࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓࠋẼᐦᛶࢆ☜ㄆࡍࡿࡓࡵ࡟ᾮ
ἐヨ㦂ࢆ⾜ࡗࡓ⤖ᯝࠊ✵Ẽࡀࢪࣝ࢝ࣟ࢖࡜ SiC/SiC ࡢ᥋ྜ㠃ࡢ୧ഃ࠿ࡽ
࣮ࣜࢡࡍࡿ⤖ᯝ࡜࡞ࡗࡓࠋࡋ࠿ࡋ࡞ࡀࡽࠊࡇࢀࡲ࡛࡟⾜ࡗ࡚ࡁࡓ Ti ⢊ᮎ࡞ࡋࡢ࣮ࣞࢨ࣮⁐᥋ヨ㦂య࡜ẚ㍑ࡋ࡚ࠊẼἻࡢὶฟ㡿ᇦࡣᑠࡉࡃ࡞ࡾࠊ
ẼᐦᛶࡢᨵၿࡀⅭࡉࢀࡓ࡜⪃࠼ࡽࢀࡿࠋ
ᾮἐヨ㦂᫬࡟ẚ㍑ⓗࠊ✵Ẽࡢ࣮ࣜࢡ㔞ࡀᑡ࡞࠿ࡗࡓ࣮ࣞࢨ࣮↷ᑕ㒊㸦ᅗ 1 ྑഃ㒊㸧ࢆᶞ⬡࡟ᇙࡵ㎸ࡳᚋࠊ෇⟶୰ኸ㒊ࢆ㛗ᡭ᪉ྥ࡟ษ᩿ᚋࠊ
◊☻ࡋࠊFE-SEM ࡟ࡼࡿ⤌⧊ほᐹࢆᐇ᪋ࡋࡓࠋࡑࡢ⤖ᯝࢆᅗ 2 ࡟♧ࡍࠋ
SiC/SiC ෇⟶࡜ࢪࣝ࢝ࣟ࢖෇⟶࡜ࡢ㛫ࡢ᥋ྜᛶ࡟ࡘ࠸࡚ࠊ࡝ࡢ⟠ᡤ࡟࠾࠸࡚ࡶ࣮ࣞࢨ࣮↷ᑕ┤ୗ࡛ࡣࢪࣝ࢝ࣟ࢖෇⟶ࡢࡡࡌᒣ㒊ࡀኚᙧࡋ࡚࠸

− 158 −

ᅗ 1. ࡡࡌຍᕤᚋ SiC/SiC ࠾ࡼࡧ࣮ࣞࢨ࣮↷ᑕ๓ᚋࡢヨ㦂యࡿࡇ࡜࠿ࡽࠊ࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡾࢪࣝ࢝ࣟ࢖࠾
ࡼࡧࢳࢱࣥ⢊ᮎࡀ⁐⼥ࡋ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡿࠋ≉࡟ᅗ 2 ྑୗ㒊࡟࠾࠸࡚ࡣ SiC/SiC ࡜ࢪࣝ࢝ࣟ࢖ࡢ᥋ゐ㒊ศ࡟᫂☜࡞✵㝽ࡣ☜ㄆࡉࢀ࡞࠿
ࡗࡓࠋࡋ࠿ࡋ࡞ࡀࡽࠊᶞ⬡ࡢὶධࡀྛᡤ࡟ぢཷࡅࡽࢀࡿࡓࡵࠊ඲࿘࡟Ώࡗ࡚ࡢ᥋ྜࡣࡋ࡚࠾ࡽ
ࡎࠊᾮἐヨ㦂࡛࣮ࣜࢡࡀⓎ⏕ࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ
ࡲࡓࠊ⁐⼥ࡋ࡚࠸࡞࠸ࢳࢱࣥ⢊ᮎࡀ࣮ࣞࢨ࣮↷ᑕ㒊┤ୗࡢ࿘㎶࡟ࡶṧ␃ࡋ࡚࠸ࡿࡇ࡜࠿ࡽࠊࡡ
ࡌ㒊ࡢพฝ࡟ࡼࡾሙᡤ࡟ࡼࡗ࡚ࡣࢪࣝ࢝ࣟ࢖෇
⟶࠿ࡽࢳࢱࣥ⢊ᮎ࡬༑ศ࡞⇕ࡢఏ㐩ࡀ⾜ࢃࢀ࡚࠸࡞࠸ྍ⬟ᛶࡀ⪃࠼ࡽࢀࡿࠋ
ᅗ 3 ࡟ᅗ 2 ྑୗ㒊ࢆᣑ኱ࡋࡓ཯ᑕ㟁Ꮚീほᐹ࠾ࡼࡧ EDS ࡟ࡼࡿඖ⣲ศᯒ⤖ᯝࢆ♧ࡍࠋࢳࢱࣥ
࡜ࢪࣝࢥࢽ࣒࢘ࡀ⁐⼥ࡋࠊSiC/SiC ෇⟶࡜ࢪࣝ࢝ࣟ࢖෇⟶ࡀⰋዲ࡟᥋ྜࡉࢀ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛

ᅗ 2. ࣮ࣞࢨ࣮↷ᑕᚋヨ㦂య᩿㠃ࡢගᏛ࠾ࡼࡧ㟁Ꮚ㢧ᚤ㙾ീࡁࡿ୍᪉࡛ࠊࢳࢱࣥࡢࡳࡀ᳨ฟࡉࢀࡿ㒊ศࡶ☜ㄆ࡛ࡁࠊ᏶඲࡟⁐⼥ࡋ࡚࠸࡞࠸㒊ศࡀ࠶ࡿࡇ
࡜ࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊ௒ᅇࡢほᐹ⠊ᅖෆ࡟࠾࠸࡚ࡣ SiC/SiC ࡜ࢪࣝ࢝ࣟ࢖࠾ࡼࡧࢳࢱࣥ
ࡢ㛫࡟᫂☜࡞཯ᛂ┦ࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓࠋヲ⣽࡞཯ᛂ┦ࡢ᭷↓࡟㛵ࡋ࡚ࡣ௒ᚋࡢ◊✲ࡀᚲ
せ࡛࠶ࡿࠋ
4㸬⤖ㄽ
ࢳࢱࣥ⢊ᮎࢆ฼⏝ࡋࡓ SiC/SiC ෇⟶࡜ࢪࣝ࢝ࣟ࢖෇⟶ࡢ࣮ࣞࢨ࣮⁐᥋ࢆᐇ᪋ࡋࡓࠋ

ᅗ 3. ᥋ྜ⏺㠃㏆ഐࡢ཯ᑕ㟁Ꮚീ࠾ࡼࡧ

ࡑࡢ⤖ᯝࠊࡇࢀࡲ࡛ࡢ࣮ࣞࢨ࣮࡟ࡼࡿEDS ࡟ࡼࡿඖ⣲ศᯒ⤖ᯝ

SiC/SiC ෇⟶࡜ࢪࣝ࢝ࣟ࢖෇⟶ࡢ᥋ྜ᪉ἲ
࡜ẚ㍑ࡋ࡚ࠊ⁐⼥ࡋࡓࢪࣝ࢝ࣟ࢖࡜ࢳࢱࣥ⢊ᮎࡀ SiC/SiC ࡡࡌ㒊࡟ᐦ╔ࡍࡿࡇ࡜࡟ࡼࡾࠊẼᐦᛶࡀྥୖࡍࡿࡇ࡜ࡀ
☜ㄆࡉࢀࡓࠋࡋ࠿ࡋ࡞ࡀࡽࠊ⌧᫬Ⅼ࡛ࡣ⇞ᩱ⿕そ⟶࡜ࡋ࡚ࡢ㐺⏝࡟༑ศ࡞Ẽᐦᛶࡣ☜ಖ࡛ࡁ࡚࠾ࡽࡎࠊ௒ᚋࠊࢳࢱ
ࣥ⢊ᮎࡢᇙࡵ㎸ࡳ᪉ἲࡸᇙࡵ㎸ࡳ㒊ᙧ≧ࡢᨵⰋࠊ࣮ࣞࢨ࣮⁐᥋᮲௳ࡢኚ᭦࡞࡝ࡢ᳨ウࡀᚲせ࡛࠶ࡿࠋ
5. ཧ⪃ᩥ⊩[1] Daisuke Hayasaka, Joon-Soo Park, Hirotatsu Kishimoto and Akira Kohyama, “Gas leak tightness of SiC/SiC composites atelevated temperature”, Fusion Engennering and Design, 109-111 (2016), 1498-1501[2] Hisashi Serizawa, Yuuki Asakura, Joon-Soo Park, Hirotatsu Kishimoto and Akira Kohyama, “Development of Joining
Method for Zircaloy and SiC/SiC Composite Tubes by Using Fiber Laser”, Ceramic Transactions, 255 (2016), 177-184㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝㸧− 159 −

ᘓ㐀࠿ࡽရ㉁࣭Ᏻ඲ᛶ࣭ᑑ࿨ࡲ࡛ホ౯ྍ⬟࡞ᅄḟඖྍど໬ &$( ࢩࢫࢸ࣒ࡢ㛤Ⓨ;)(0ࢆ⏝࠸ࡓ෇⟄⥅ᡭࡢ⑂ປᙉᗘゎᯒ࡟㛵ࡍࡿ◊✲ᗈᓥ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲㝔 ຓᩍ⏣୰ᬛ⾜1. ࡣࡌࡵ࡟
⁐᥋ᵓ㐀≀࡟⧞㏉ࡋⲴ㔜ࡀຍࢃࡿሙྜ㸪⁐᥋Ṇ➃㒊࡞࡝࠿ࡽ⑂ປࡁ⿣ࡀⓎ⏕ࡍࡿࡇ࡜ࡀ࠶ࡿ㸬Ⓨ⏕ࡋࡓࡁ⿣ࡣࡉࡽ࡞ࡿ⧞㏉ࡋⲴ㔜࡟ࡼࡾ㐍ᒎࡋ㸪ᵓ㐀඲యࡢ◚ቯࡸᔂቯࢆᣍࡃᚲせࡀ࠶ࡾ⑂ປࡁ⿣ࡢⓎ⏕ࡔࡅ࡛࡞ࡃ
ࡁ⿣㐍ᒎ⌧㇟࡟ᑐࡋ࡚ࡶヲ⣽࡞᳨ウࢆ⾜࠺ᚲせࡀ࠶ࡿ㸬୍᪉㸪ࡇࢀࡲ࡛ࡢゎᯒᢏ⾡࡛ࡣ⾲㠃ࡁ⿣࠿ࡽ㈏㏻㸪
㈏㏻ࡁ⿣࡜ࡋ࡚㐍ᒎࡍࡿࡼ࠺࡞◚ቯ⌧㇟ࢆヲ⣽࡟ホ౯ࡍࡿࡇ࡜ࡀ⡆༢࡛ࡣ࡞࠿ࡗࡓ㸬ᮏ◊✲࡛ࡣ㸪᪂ࡋ࠸◚ቯຊᏛゎᯒᢏ⾡࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿ X-FEM [1] ࢆ⏝࠸ࡓ෇⟄⥅ᡭࡢ⑂ປᙉᗘヨ㦂 [2][3] ࡟ᑐࡋ࡚ࡁ⿣
㐍ᒎࢩ࣑࣮ࣗࣞࢩࣙࣥࢆᐇ᪋ࡋࡓ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿ㸬
2. FEM ࣔࢹࣝᴫせゎᯒᑐ㇟ࡢヨ㦂యࡢᑍἲࢆ Fig.1(a) ࡟♧ࡍ㸬ᯞ⟶࡜୺⟶࠿ࡽ࡞ࡿ T Ꮠ෇⟄⥅ᡭ࡛࠶ࡾ㸪୺⟶ (Chord) ࡣ┤ᚄ 406.4mm㸪ᯈཌ 12.7mm㸪ᯞ⟶ (Brace) ࡣ┤ᚄ 139.7mm㸪ᯈཌ 5.0mm ࡛࠶ࡿ㸬⾲㠃ࡁ⿣ࡣ Fig.1(a)ࡢࢧࢻࣝ㒊࠿ࡽⓎ⏕ࡋࡓ㸬Fig.1(b) ࡟ࡁ⿣㐍ᒎ⤖ᯝࢆ♧ࡍ㸬ࡁ⿣ࡀ㐍ᒎࡋ࡚࠸ࡿึᮇࡣᯞ⟶࡟ἢ࠺ᙧ࡛㸪ࡑࡢᚋ㸪ᯞ⟶࠿ࡽ㞳ࢀࡿࡼ࠺࡞ᙧ࡛ࡁ⿣ࡀ㐍ᒎࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬Fig.1(c) ࡟ࡁ⿣㐍ᒎࡢᵝ┦ࢆ♧ࡍ㸬༙ᴃ෇≧ࡢึᮇࡁ⿣ࡀᡥᖹ࡞ᙧ≧࡛㐍ᒎࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬

Fig. 1 T-shaped tubular joint test specimen [(a) All over view, (b) Fatigue test result, (c) Crack propagation behavior]

3. X-FEM ࢆ⏝࠸ࡓࡁ⿣㐍ᒎゎᯒ
Fig.1(a) ࡛♧ࡋࡓ෇⟄⥅ᡭヨ㦂య࡟ᑐࡋ࡚㸪ᅄ㠃య୍ḟせ⣲ࢆ⏝࠸ࡓ X-FEM ࣔࢹࣝࢆ Fig.2 (a) ࡟♧ࡍ㸬⁐᥋Ṇ➃㒊ࡣṆ➃᭤⋡༙ᚄ U=11mm ࡛◊๐ฎ⌮ࢆ⾜࡞ࡗ࡚࠶ࡿ㸬ᵓ㐀≀࡟ᑐࡋ࡚ࡁ⿣ࡀ༑ศᑠࡉ࠸࡜ࡋ࡚
1/2 ࣔࢹࣝࢆ⏝࠸ᑐ⛠᮲௳ࢆ⏝࠸ࡓゎᯒࢆ⾜ࡗࡓ㸬Fig.2 (b) ࡟♧ࡍࡼ࠺࡟㸪෇⟄⥅ᡭࡢ R Ṇࡲࡾࡢ఩⨨࡟ᖜ 2c=0.4mm ῝ࡉ a=0.2mm ࡢ⾲㠃ࡁ⿣ࢆ୺⟶⾲㠃࡜ᆶ┤᪉ྥ࡟ᤄධࡋࡁ⿣㐍ᒎゎᯒࢆᐇ᪋ࡋࡓ㸬Fig.2(c) ࡟෇⟄⥅ᡭ⾲㠃㒊ࡢࡁ⿣㐍ᒎ≧ἣࢆ♧ࡍ㸬⾲㠃ࡁ⿣ࡢ࣐࢘ࢫ㒊ࡢ㐍ᒎᣲື࡜ࡋ࡚㸪ࡣࡌࡵ࡟ᯞ⟶࿘᪉ྥ࡟ἢ࠺ࡼ࠺࡟㸪ࡉࡽ࡟ࡁ⿣ࡀ኱ࡁࡃ࡞ࡿ࡜ᯞ⟶ࡢ࿘᪉ྥ࠿ࡽ㐓ࢀ࡚㐍ᒎࡋ࡚࠸ࡃࡇ࡜ࡀࢃ࠿ࡿ㸬ࡲࡓ㸪୺⟶ࡢ

− 160 −

᩿㠃᪉ྥࡢࡁ⿣㐍ᒎ⤖ᯝࢆ Fig.2(d) ࡟♧ࡍ㸬୺⟶⾲㠃࡜ᆶ┤࡟ᤄධࡉࢀࡓ⾲㠃ࡁ⿣ࡣ୺⟶ᯈཌ᪉ྥ࡟ᑐࡋ࡚
ゅᗘࢆᣢࡗ࡚㐍ᒎࡋ࡚࠸ࡃࡇ࡜ࡀศ࠿ࡿ㸬⾲㠃ࡁ⿣ࡀᯈཌࢆ㈏㏻ࡋ㸪㈏㏻ࡁ⿣ࡀࡉࡽ࡟㐍ᒎࡋࡓ⤖ᯝࢆ
Fig.2(e) ࡟♧ࡍ㸬ࡇࡢ⤖ᯝࢆぢ࡚ࡶᚤᑠ࡞⾲㠃ࡁ⿣ࡀ㐍ᒎࡋ㸪ึࡵࡣᯞ⟶࡟ἢ࠺ࡼ࠺࡟㸪ࡑࡢᚋ㸪ᯞ⟶࠿ࡽ㞳ࢀ࡚࠸ࡃࡼ࠺࡟㐍ᒎࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬Fig.2(f) ࡟෇⟄᩿㠃ࡢ⾲㠃ࡁ⿣㐍ᒎࡢせ⣲ࢆ♧ࡍ㸬༙෇≧ࡢ⾲㠃ࡁ⿣ࡣ༙ᴃ෇ᙧ≧࡟㐍ᒎࡋ࡚ࡺࡃࡇ࡜ࡀศ࠿ࡿ㸬ࡉࡽ࡟㸪ࡁ⿣᭱᪂㒊ࡀ㈏㏻ࡋࡓᚋ㸪㈏㏻ࡁ⿣࡜ࡋ࡚㐍ᒎࡋ࡚࠸ࡃࡇ࡜ࡀศ࠿ࡿ㸬Fig.1(b), (c) ࡢࡁ⿣㐍ᒎゎᯒ⤖ᯝ࡜ Figs.2 (a)-(f) ࡛♧ࡋࡓ X-FEM ゎᯒ࡟࠾࠸࡚
ᐃᛶⓗ࡛࠶ࡿࡀྠᵝࡢ⤖ᯝࡀᚓࡽࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬௒ᚋࡣ㸪ᛂຊᣑ኱ಀᩘࡸࢧ࢖ࢡࣝᩘ㸪࢔ࢫ࣌ࢡࢺẚ࡞࡝ᐃ㔞ⓗ࡞᳨ウࢆ⾜ࡗ࡚ࡺࡃ㸬

Fig. 2 X-FEM model and crack propagation behavior [(a) X-FEM model, (b) Initial surface crack, (c) Crack propagation behavior at
saddle part, (d) Cross-section of chord, (e) Crack propagation behavior, (f) Fracture surface evaluated by X-FEM computation].

4. ࠾ࢃࡾ࡟
෇⟄⥅ᡭࡢ⑂ປヨ㦂⤖ᯝ࡟ᑐࡋ࡚㸪X-FEM ࢆ⏝࠸ࡓࡁ⿣㐍ᒎゎᯒゎᯒࢆᐇ᪋ࡋࡓ㸬ࡇࢀࡲ࡛⡆༢࡟⾜࡞࠺ࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓ⾲㠃ࡁ⿣࠿ࡽ㈏㏻ࡁ⿣࡟㐍ᒎࡍࡿ⌧㇟ࡢゎᯒࢆ⾜࠺ࡇ࡜ࡀ࡛ࡁ㸪ᐃᛶⓗ࡟ࡁ⿣㐍ᒎᣲືࢆホ౯ࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡗࡓ㸬ཧ⪃ᩥ⊩(1) Moes N., Dolbow J., Belytschko T., A finite element method for crack growth without remeshing,International Journal for Numerical Methods in Engineering, Vol.46, pp.131-150, 1999.
(2) ඵᮌ୍᱒㸪ᮧୖ㈗ᚿ㸪෇⟶ T ⥅ᡭࡢ⑂ປᑑ࿨࡜ட⿣ఏ᧛࡟㛵ࡍࡿᐇ㦂ⓗ⪃ᐹ㸪᪥ᮏ⯪⯧ᾏὒᕤᏛ఍ㅮ₇఍ㄽᩥ㞟㸪➨ 16 ྕ㸪pp.535-538, 2013.
(3) Yagi K., Tanaka S., Kawahara T., Nihei K., Okada H., Osawa N., Evaluation of crack propagation
behaviors in a T-shaped tubular joint employing tetrahedral FE modeling, International Journal of
Fatigue, Vol.96, pp.270-282, 2017.
(ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝)− 161 −

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

&


㸲㸬ࢩࣕࣝࣆ࣮⾪ᧁヨ㦂 ཌࡉࡢ␗࡞ࡿヨ㦂∦ࢆ⏝࠸࡚ᶆ‽ヨ㦂∦࡜ྠࡌ༢఩
㠃✚࠶ࡓࡾࡢ྾཰࢚ࢿࣝࢠ࣮ࢆᚓࡿࡓࡵࡢ

ᗘࢩࣇࢺ

Steel F㔞 ǻT ࡟ࡘ࠸࡚㸪Wallin3)ࡣ௨ୗࡢᘧࢆᥦ᱌ࡋ࡚࠸ࡿ㸬

Steel BǻT = 51.4 ln (2 (B/10)1/4 - 1)      (1)ࡇࡇ࡛㸪B ࡣヨ㦂∦ཌࡉ㸦mm㸧࡛࠶ࡿ㸬ᮏᐇ㦂࡛౑⏝ࡋࡓཌࡉࡢ␗࡞ࡿヨ㦂∦࡟ᑐࡋ㸪ཌࡉ 10mm ࡢᶆ‽ヨ㦂∦ࡢヨ㦂 ᗘࢆ 0Υ࡜ࡋࡓሙྜ㸪ཌࡉ 7.5mm ࠾ࡼࡧ
5mm ࡢヨ㦂∦ࡢヨ㦂ᗘࡣᘧ(1)ࡼࡾࡑࢀࡒࢀ-8Υ㸪-20Υ࡜࡞ࡿ㸬ࡇࢀࡽࡢヨ㦂

Yield stress, ıYUltimate strength, ıUElongation, İb
Yield ratio, YR

MPa
MPa
%
ʊ

ࢆᐇ᪋ࡋࡓ⤖ᯝࢆᅗ-2 ࠾ࡼࡧᅗ-3 ࡟♧ࡍ㸬

− 164 −

F
440*
613
19
0.72

*0.2% proof stressᗘ࡛ࢩࣕࣝࣆ࣮⾪ᧁヨ㦂ྠ୍ヨ㦂 ᗘ㸦0Υ㸧࡛ࡣ㸪࠸ࡎࢀࡢ㗰ᮦࡶヨ㦂∦ࡀ

B
291
460
30
0.63

ᅗ-1 ᘬᙇヨ㦂⤖ᯝⷧࡃ࡞ࡿ࡯࡝༢఩㠃✚ᙜࡓࡾࡢ྾཰࢚ࢿࣝࢠ࣮ࡀ㧗ࡃ࡞ࡗࡓ㸦ᅗ-2㸧㸬ࡇࡢഴྥࡣ F ᮦࡼࡾࡶ B ᮦ࡟࠾࠸࡚᫂
░࡟☜ㄆࡉࢀࡓ㸬ヨ㦂ᗘࢩࣇࢺ㔞ࢆ⪃៖ࡋẚ㍑ࡍࡿ࡜㸪% ᮦ࡛ࡣࡍ࡭࡚ࡢཌࡉࡢヨ㦂∦ࡢ༢఩㠃✚ᙜࡓࡾࡢ྾཰࢚ࢿࣝࢠ࣮ࡀ࡯ࡰྠࡌ್࡟࡞ࡗࡓ㸬F ᮦ࡛ࡣ㸪ཌࡉ 10mm ࡢᶆ‽ヨ㦂∦࡜ཌࡉ 7.5mm ࡢヨ㦂∦ࡢ༢఩㠃✚ᙜࡓࡾࡢ྾཰࢚ࢿࣝࢠ࣮ࡣ࡯ࡰྠࡌ࡛࠶ࡗࡓࡀ㸪ཌࡉ 5mm ࡢヨ㦂∦ࡢࡳ㸪༢఩㠃✚࠶ࡓࡾࡢ྾཰࢚ࢿࣝ
ࢠ࣮ࡀࡸࡸ㧗ࡃ࡞ࡗࡓ㸦ᅗ-3㸧㸬㸳㸬⤖ゝ⇕ᒚṔࡢ௜୚࡟క࠺ᶵᲔⓗᛶ㉁࠾ࡼࡧࡦࡎࡳ◳໬≉ᛶࡢኚ໬ࡀࢩࣕࣝࣆ࣮྾཰࢚ࢿࣝࢠ࣮࡟୚࠼ࡿᙳ㡪ࡢᗘྜ࠸ࡣ㸪ヨ㦂∦ࡢཌࡉ࡟ࡼࡗ࡚␗࡞ࡿྍ⬟ᛶࢆ⤖ᯝࡣ♧၀ࡋ࡚࠸ࡓ㸬ࡇࡢⅬ࡟ࡘ࠸࡚㸪ⅆ⅏ࢆཷࡅࡓᶫᱱ
㒊ᮦࡢ㠌ᛶホ౯࡟࠾࠸࡚ࢧࣈࢧ࢖ࢬヨ㦂∦ࢆ㐺⏝ࡍࡿ㝿࡟␃ពࡍࡿᚲせࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ཧ⪃ᩥ⊩1) ᅵᮌᏛ఍㗰ᵓ㐀ጤဨ఍㸪ⅆ⅏ࢆཷࡅࡓ㗰ᶫࡢデ᩿⿵ಟᢏ⾡࡟㛵ࡍࡿ◊✲ᑠጤဨ఍㸸ⅆ⅏ࢆཷࡅࡓ㗰ᶫࡢデ᩿⿵ಟ࢞࢖ࢻࣛ࢖ࣥ㸪ᅵᮌᏛ఍㗰ᵓ㐀ࢩ࣮ࣜࢬ 24㸪2015.7.
2) ᘅ⏿ᖿே㸪໭᰿Ᏻ㞝㸪ఀ⸨⩏ே㸸㗰ᶫࡢⅆ⅏ࢆ᝿ᐃࡋࡓຍ⇕࠾ࡼࡧ෭༷㐣⛬ࡀᵓ㐀⏝㗰ࡢ⁐᥋⥅ᡭ≉ᛶ࡟ཬࡰࡍᙳ㡪㸪㗰ᵓ㐀ㄽᩥ㞟㸪➨ 21 ᕳ➨ 84 ྕ㸪pp.67-78㸪2014.12.
3) Wallin, K.: Methodology for selecting Charpy toughness criteria for thin high strength steels, Part 1 – determining

6WHHO% ഒCharpy absorbed energy perunit area vE / A (J/mm2)

Charpy absorbed energy perunit area vE / A (J/mm2)

the fracture toughness. Report from Working Group 4013/89, Jernkontorets Forskning, 1994.
6WHHO)

 ഒSpecimen thickness B (mm)Specimen thickness B (mm)(a) B ᮦ(b) F ᮦ6WHHO%

 ഒ ഒ

 ഒ

Charpy absorbed energy perunit area vE / A (J/mm2)

Charpy absorbed energy perunit area vE / A (J/mm2)

ᅗ-2 ༢఩㠃✚ᙜࡓࡾࡢ྾཰࢚ࢿࣝࢠ࣮㸦ヨ㦂 ᗘ 0Υ㸧
6WHHO) ഒ ഒ ഒSpecimen thickness B (mm)Specimen thickness B (mm)(a) B ᮦ(b) F ᮦᅗ-3 ༢఩㠃✚ᙜࡓࡾࡢ྾཰࢚ࢿࣝࢠ࣮㸦ヨ㦂 ᗘࢩࣇࢺ⪃៖㸧㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ホ౯Ꮫศ㔝㸧− 165 −

᢬ᢠࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢ᥋ྜᙉᗘ࡟㛵ࡍࡿಙ㢗ᛶホ౯኱㜰ᕤᴗ኱ᏛᕤᏛ㒊ఀ⯅⏣᐀៞┠ⓗ ㏆ᖺࡢ⮬ື㌴⏘ᴗ࡟࠾࠸࡚ࡣ㸪ᆅ⌫⎔ቃ㈇Ⲵపῶࢆ┠ⓗ࡜ࡋ࡚⮬ື㌴ࡢప⇞㈝໬ࡀಁ㐍ࡉࢀ࡚࠾ࡾ㸪ࡑࡢ୍᪉⟇࡜ࡋ࡚⮬ື㌴ࡢ㍍㔞໬࡟ὀ┠ࡀ㞟ࡲࡗ࡚࠸ࡿ㸬⮬ື㌴ᵓ㐀㒊ᮦࡢ㍍㔞໬ࢆ㐩ᡂࡍࡿᡭẁࡢ୍ࡘ࡟㸪ᵓ㐀㒊ᮦ࡟ᑐࡍࡿࠕࣁ࢖ࢸࣥᮦࠖࡢ㐺⏝ࡀᣲࡆࡽࢀ㸪ࡑࢀ࡟ࡼࡾ⮬ື㌴ᵓ㐀㒊ᮦࡢⷧ⫗໬࠿ࡽ㍍
㔞໬ࡀ㐩ᡂࡉࢀࡿࡇ࡜࠿ࡽ㸪㐺⏝ࡀ᥎㐍ࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ࣁ࢖ࢸࣥᮦࡢ᥋ྜࢆ┠ⓗ࡜ࡋࡓ᢬ᢠࢫ࣏
ࢵࢺ⁐᥋᫬࡟ᙧᡂࡉࢀࡿ⁐᥋㒊࡟࠾࠸࡚㸪⥅ᡭࡢᙉᗘ㸪୰࡛ࡶ๝㞳᪉ྥ࡟Ⲵ㔜ࢆ௜୚ࡍࡿ༑Ꮠᘬᙇᙉࡉ
ࡀⴭࡋࡃపୗࡋ㸪1000 MPa ⣭ࡢ㉸ࣁ࢖ࢸࣥᮦࡢ༑Ꮠᘬᙇᙉࡉࡣ㸪㌾㗰ᯈࡢࡑࢀ࡜ྠ⛬ᗘ࡛࠶ࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ㸬ࡇࢀࡣ㸪ࣁ࢖ࢸࣥᮦ≉᭷ࡢ⁐᥋㒊≉ᛶ㸪࠾ࡼࡧ㗰ᯈᙉᗘቑຍ࡟క࠺ᯈࡢ㧗๛ᛶ໬࡞࡝࡟㉳ᅉࡍࡿࡶࡢ࡜⪃࠼ࡽࢀ࡚࠾ࡾ㸪༑Ꮠᘬᙇᙉࡉྥୖ࡟ྥࡅࡓᵝࠎ࡞ᡭẁࡀ㛤Ⓨࡉࢀࡘࡘ࠶ࡿ㸬ࡋ࠿ࡋ⌧ẁ㝵࡟࠾࠸࡚㸪ࣁ࢖ࢸࣥᮦࡢ༑Ꮠᘬᙇᙉࡉྥୖ࡟ᑐࡍࡿ⤫୍ⓗ࡞⪃࠼᪉ࡀ♧ࡉࢀ࡚࠸ࡿ࡜ࡣゝ࠸㞴ࡃ㸪ᵝࠎ࡞ᡭẁࢆ⏝࠸࡚༑Ꮠᘬᙇᙉࡉࡢྥୖࡀᅗࡽࢀ࡚࠸ࡿࡶࡢࡢ㸪༑Ꮠᘬᙇᙉࡉྥୖ࡟ᑐࡋ࡚᭱ࡶຠᯝⓗ࡞ྥୖᅉᏊ࡟ࡘ࠸࡚ࡣ᫂ࡽ࠿࡟ࡉࢀ࡚࠸࡞࠸㸬 ࡑࡇ࡛ᮏ᳨ウ࡛ࡣ㸪ࣁ࢖ࢸࣥᮦࡢ༑Ꮠᘬᙇᙉࡉྥୖ࡟ᑐࡋ࡚ຠᯝⓗ࡞ᅉᏊࡢ᥈⣴ࢆ┠ⓗ࡜ࡋ࡚㸪༑Ꮠᘬᙇヨ㦂ࢆᶍᨃࡋࡓᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࡢᵓ⠏ࢆ⾜࠸㸪༑Ꮠᘬᙇヨ㦂᫬࡟࠾ࡅࡿ⁐᥋㒊ࡢࡦࡎࡳศᕸ
ኚ໬ࡸᛂຊᣑ኱ಀᩘ࡟ཬࡰࡍࢼࢤࢵࢺ≉ᛶࡢᙳ㡪࡟ࡘ࠸᳨࡚ウࢆ⾜࠺㸬࡞࠾㸪ᮏ᳨ウ࡛ࡣ㸪ࢼࢤࢵࢺࡢ
኱ࡁࡉࡀ⥅ᡭᙉᗘ࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚ᩘ್ゎᯒࢆ⏝࠸᳨࡚ウࢆ⾜ࡗࡓ㸬


◊✲᪉ἲ

 ᩘ್ゎᯒࣔࢹࣝࢆ )LJ ࡟㸪⁐᥋㒊ࡢ࣓ࢵࢩࣗᙧ≧ࢆ )LJ ࡟♧ࡍ㸬⁐᥋㒊ࡢ᭱ᑠ࣓ࢵ
ࢩࣗᑍἲࡣ PPPPPP ࡜ࡋ࡚࠸ࡿ㸬ᩘ್ゎᯒࣔࢹࣝࡣᐇ㝿ࡢ༑Ꮠᘬᙇヨ㦂∦ࡢᑍἲ࠿ࡽ  ࣔࢹࣝࢆసᡂࡋ࡚㸪ᐇ㝿ࡢ༑Ꮠᘬᙇヨ㦂࡜ྠᵝࡢቃ⏺᮲௳ࢆ௜୚ࡋ࡚ィ⟬ࢆ⾜ࡗࡓ㸬࡞࠾㸪ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡣ㸪ỗ⏝᭷㝈せ⣲ゎᯒࢯࣇࢺࡢ 0DUF ࢆ⏝࠸ࡓ㸬 )LJ ࡟ゎᯒ࡟࠾࠸࡚౑⏝ࡋࡓࢼࢤࢵࢺ㸪+$= ࠾ࡼࡧẕᮦ㸦%DVH㸧ࡢᛂຊ̾ࡦࡎࡳ㛵ಀ

)LJ  'LPHQVLRQRIQXPHULFDOVLPXODWLRQPRGHORIVSRW 
ZHOGHGMRLQWࢆ♧ࡍ㸬ᑐ㇟㗰ᮦࡣᯈཌ PP ࡢ 03D⣭㧗ᙉᗘ㗰ᯈ࡜ࡋ࡚࠾ࡾ㸪ᛂຊࡦࡎࡳ㛵ಀࡣ㸪ẕᮦࡢᘬᙇヨ㦂࡜ࢼࢤࢵࢺ㸪+$= ࠾ࡼࡧẕᮦࡢࣅࢵ࣮࢝ࢫ◳ࡉࡢྲྀᚓࢆ⾜࠸㸪◳ᗘẚ࡟ᛂࡌ࡚ẕᮦࡢᘬᙇヨ㦂⤖ᯝࢆࢩࣇࢺࡉࡏࡿᙧ࡛
ㄪᩚࢆ⾜ࡗࡓ㸬࡞࠾㸪࣏࢔ࢯࣥẚࡣ 㸪⦪ᙎᛶಀᩘࡣ *3D ୍࡛ᐃ࡜ࡋ࡚࠸ࡿ㸬

)LJ  )LQLWHHOHPHQWPRGHORIVSRWZHOGV− 166 − ゎᯒ᮲௳ࡣ㸪ࢼࢤࢵࢺࡢ≀ᛶ್ࢆ୚࠼ࡿ㡿ᇦࡢ኱ࡁࡉࢆኚ໬ࡉࡏࡿࡇ࡜࡛㸪ࢼࢤࢵࢺᚄࡢ኱
ࡁࡉኚ᭦ࢆᶍᨃࡋ࡚࠾ࡾ㸪ࢼࢤࢵࢺࡢ㡿ᇦࢆࡑࢀࡒࢀ㸪¥t㸪¥t ࠾ࡼࡧ ¥t ࡜ࡑࢀࡒࢀኚ᭦ࡋ
࡚࠸ࡿ㸬


ゎᯒ⤖ᯝ

 )LJ ࡟㸪ࢥࣟࢼ࣎ࣥࢻඛ➃㒊࡟࠾ࡅࡿ㸪㈇ⲴⲴ㔜࡟ᑐࡍࡿࡁ⿣㛤ཱྀ᪉ྥࡢᛂຊኚ໬ࢆ♧ࡍ㸬ᅗࡼࡾ㸪ࢼࢤࢵࢺᚄࡢቑຍ࡟క࠸㸪㛤ཱྀ᪉ྥᛂຊࡀపୗࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ㸬ࡇࢀࡣ㸪ࢼࢤࢵࢺᚄቑຍ࡟క࠸㸪࣓ࣜ࢞ࣥࢺ㛗ࡉ࡟ࡘ࠸)LJ  6WUHVVVWUDLQFXUYHVRIVSRWZHOGV࡚ࡶቑຍࡍࡿࡇ࡜࡛㸪ኚᙧࡀᑠࡉࡃ࡞ࡿࡇ࡜࡟
ࡼࡾᛂຊࡀపୗࡋࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬 ḟ࡟㸪⥅ᡭࡢ⬤ᛶⓗ࡞◚ቯᶵᵓࡢ 1 ࡘࡢᣦ㔪࡛࠶ࡿᛂຊᣑ኱ಀᩘ࡟ࡘ࠸࡚⟬ฟࢆ⾜ࡗࡓ㸬Fig. 5 ࡟ࡑࡢ⟬ฟ⤖ᯝࢆ♧ࡍ㸬ᅗࡼࡾ㸪ࢼࢤࢵࢺᚄࡢቑຍ࡟క࠸ᛂຊᣑ኱ಀᩘࡀపୗࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ㸬ࡇࢀࡣ㸪ࢼࢤࢵࢺᚄቑຍ࡟క࠸ࢼࢤࢵࢺ➃࡟Ⓨ⏕ࡍࡿᛂຊ㞟୰ࡢపୗ㸪ࡉࡽ࡟ࡁ⿣ࡢ࣓ࣜ࢞ࣥࢺ㛗ࡉࡢቑຍ࡟ࡼࡾ㸪ࢼࢤࢵࢺෆ㒊ࡢᛂຊࡀపୗࡋࡓࡇ࡜ࡀཎᅉ࡜⪃࠼ࡽࢀࡿ㸬୍᪉㸪ࢼࢤࢵࢺ➃㒊ࡢ◚ቯ㠌ᛶ࡟ࡘ࠸࡚㸪ࢼࢤࢵࢺᚄࡢ౫Ꮡᛶࡣᑠࡉ࠸ࡶࡢ࡜⪃࠼ࡽࢀࡿࡇ࡜࠿ࡽ㸪◚ቯ㛤ጞࡣ㧗Ⲵ㔜ഃ࡬⛣⾜ࡍࡿ࡜᥎ࡉࢀࡿ㸬ࡇࡢࡇ࡜ࡼࡾ㸪ࢼࢤࢵࢺᚄቑຍ࡟ࡼࡾࢼࢤࢵࢺ᪉ྥ࡬ࡢ⬤ᛶⓗ࡞ࡁ⿣ࡢⓎ⏕ࡀᢚไࡉࢀࡿ

ࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬
)LJ  Relationship between crack opening direction

Fig. 5and load in 980 MPa steel joints.

stress and load in 980 MPa steel joints.


Relationship between stress intensity factor⤖ㄽ ᥋ྜᙉᗘࡢಙ㢗ᛶホ౯࡟ྥࡅࡓ᳨ウ࡜ࡋ࡚㸪980 MPa ⣭㧗ᙉᗘ㗰ᯈ᢬ᢠࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢ༑Ꮠᘬᙇ
ᙉࡉ࡟ཬࡰࡍࢼࢤࢵࢺ≉ᛶࡢᙳ㡪࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓ㸬୰࡛ࡶᮏゎᯒ࡛ࡣࢼࢤࢵࢺᚄࡢᙳ㡪࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓ㸬ࡑࡢ⤖ᯝ㸪ࢼࢤࢵࢺᚄࡀ኱ࡁࡃ࡞ࡿࡇ࡜࡛ࢩ࣮ࢺࢭࣃ࣮ࣞࢩࣙࣥඛ➃ࡢ㛤ཱྀ᪉ྥᛂຊ㸪࠾ࡼࡧ࣮ࣔࢻ I ࡢᛂຊᣑ኱ಀᩘࡀపୗࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬ࡇࡢࡇ࡜ࡣ㸪ࢼࢤࢵࢺᚄቑຍ࡟క࠸㸪◚᩿ᙧែࡀ⏺㠃◚᩿࠿ࡽࣉࣛࢢ◚᩿࡟⛣⾜ࡍࡿࡇ࡜࡜ᑐᛂࡍࡿࡶࡢ࡛࠶ࡿ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜタィᏛศ㔝㸧− 167 −

ࣅࣝࢺ H ᱱࢆ⏝࠸ࡓ⌧ሙ⁐᥋ᆺᰕᱱ⁐᥋᥋ྜ㒊ࡢኚᙧ⬟ຊ࡟㛵ࡍࡿᐇ㦂ⓗ◊✲̿ࢧࣈ࣐࣮ࢪ࢔࣮ࢡ⁐᥋㒊ࡢ◚ቯ㠌ᛶ࡟ࡼࡿᙳ㡪̿ಙᕞ኱ᏛᕤᏛ㒊 ୰㎸ᛅ⏨ࠊ㔠Ꮚὒᩥࠊᇼሙுభࠊ㔠ᓮಙኴ㑻ࠊᓊ⪔ᕥᶫᮏ㟹ᏹࠊᑿෆᝡྐࠊᐑṊ⣧ஓࠊ1JX\HQ'XFTXDQJ┠ⓗ ⁐᥋⤌❧ H ᆺ᩿㠃ᱱ㸦௨ୗࠊࣅࣝࢺ H ᱱ㸧ࢆ⏝࠸ࡓᰕᱱ⁐᥋᥋ྜ㒊ࡣࠊࣇࣛࣥࢪ࡜࢙࢘ࣈࢆ
᥋ྜࡍࡿࢧࣈ࣐࣮ࢪ࢔࣮ࢡ⁐᥋㒊㸦௨ୗࠊSAW 㒊㸧ࡢ◚ቯ㠌ᛶࡢ୙㊊࡟ࡼࡾ⬤ᛶ◚ቯࢆᘬࡁ㉳ࡇࡍ࡜ࡢᣦ᦬ࡀ࡞ࡉࢀ࡚࠸ࡿ 13)ࠋࡋ࠿ࡋࠊSAW 㒊ࡢ◚ቯ㠌ᛶ࡜ᰕᱱ⁐᥋᥋ྜ㒊ࡢኚᙧ⬟ຊ࡜ࡢ㛵ಀᛶ࡟㛵ࡍࡿ◊✲ᐇ⦼ࡣᑡ࡞ࡃࠊࡇࢀࡽࡢᙳ㡪ࢆᨵၿࡍࡿᕤἲࡢ᳨ウ࡟⮳ࡗ࡚࠸࡞࠸ࡢࡀ⌧≧࡛࠶ࡿࠋᮏ◊✲ࡣࠊࣅࣝࢺ H ᱱࡢ SAW 㒊࡟࠾ࡅࡿ◚ቯ㠌ᛶࡀࠊ⌧ሙ⁐᥋ᆺᰕᱱ⁐᥋᥋ྜ㒊ࡢኚᙧ⬟ຊ࡟ཬࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚ࠊ␲ఝࣀࣥࢫ࢝ࣛࢵࣉᕤἲࢆ㐺⏝ࡋࡓᐇ኱ᰕᱱ⁐᥋᥋ྜ㒊ᐇ㦂ࢆ⾜ࡗࡓࠋᐇ㦂ᴫせ ᐇ㦂ࣃ࣓࣮ࣛࢱ
 ⾲ 1 ࡟ᐇ㦂ࣃ࣓࣮ࣛࢱࢆ♧ࡍࠋ⌧ሙ⁐᥋ᆺᰕᱱ⁐᥋᥋ྜ㒊࡟࠾ࡅࡿᱱ➃ࢹ࢕ࢸ࣮ࣝ࡜ࠊࣅࣝࢺ
H ᱱ࡟࠾ࡅࡿ SAW 㒊ࡢ◚ቯ㠌ᛶࢆࣃ࣓࣮ࣛࢱ࡜ࡋࡓࠋᱱ㒊ᮦ࡜ᰕ㒊ᮦࠊ࢙࢘ࣈ᥋ྜᙧᘧࠊࣇࣛ
ࣥࢪ⁐᥋᪋ᕤ᮲௳ࡣࠊ඲ヨ㦂య࡛⤫୍ࡋࡓࠋヨ㦂యࡣࠊᅗ㸯࡟♧ࡍࡼ࠺࡟ᰕᱱ⁐᥋᥋ྜ㒊ࢆࣔࢹࣝ໬ࡋࡓᐇ኱ࢺᙧヨ㦂య࡛࠶ࡿࠋᰕ㒊ᮦ࡟ࡣゅᙧ㗰⟶ᰕƑ-400×400×25㸦BCP325㸧ࢆࠊᱱ㒊ᮦ࡟ࡣࣅࣝࢺ H ᱱ BH-600×250×16×28㸦SN490B㸧ࢆ⏝࠸ࡓࠋᱱࣇࣛࣥࢪᖜཌẚ࡜ᱱ࢙࢘ࣈᖜཌẚࡣࠊࡑࢀࡒࢀ(b/t)f=4.5ࠊ(b/t)w=34 ࡛࠶ࡾࠊᒁ㒊ᗙᒅࡀ⏕ࡌ࡟ࡃ࠸᩿㠃ᑍἲ࡜ࡋࡓࠋࡲࡓࠊᱱ࡟ẚ࡭࡚ᰕཬࡧ᥋ྜ㒊ࣃࢿࣝࡣ༑ศ࡟ᙉࡃࠊᱱࡢረᛶ໬ࡀඛ⾜ࡍࡿࣔࢹࣝ࡜ࡋࡓࠋᱱ࢙࢘ࣈ࡜ᰕࡢ᥋ྜᙧ
ᘧࡣࠊࢩ࢔ࣉ࣮ࣞࢺ࡟ࡼࡿ㧗ຊ࣎ࣝࢺᦶ᧿᥋ྜ࡜ࡋࠊ࣎ࣝࢺࡣ M22 ࡢࢺࣝࢩ࢔ᙧ㧗ຊ࣎ࣝࢺࢆ
⏝࠸ࡓࠋ⾲ 㻝㻌 ᐇ㦂䝟䝷䝯䞊䝍㻌

㗰∦ᤄධ
ᇙᡠࡋ
ࣇ࢕ࣞࢵࢺṧࡋ

31
76
23
80
28
76
18
67

4.9
3.5
4.3
4
5.9
5
3.4
5.5



ᮍ⁐╔㒊
(mm)



%+㸦61%
5+

3/ 66%‫ ڧ‬%&3



ᅾ᮶

0Υࡢࢩࣕࣝࣆ࣮྾཰
࢚ࢿࣝࢠ࣮vE0(J) ἞ල㛫㊥㞳

L_BS
H_BS
L_BS_P
H_BS_P
L_BM
H_BM
L_BF_5
H_BF_5ᱱ➃ࢹ࢕ࢸ࣮ࣝ ᰕࡢࣆࣥᨭᣢ㛫㊥㞳ヨ㦂య
3/ 61& ᰕࣇ࢙࢖ࢫ࠿ࡽຍຊⅬࡲ࡛ࡢ㊥㞳 ᰕ࡜ᱱࡢࣆࣥᨭᣢ㛫㊥㞳ᅗ 㻝㻌 ヨ㦂యཬ䜃タ⨨ᅗ㻌㻌 ᱱ➃ࢹ࢕ࢸ࣮ࣝ ᰕᱱ⁐᥋᥋ྜ㒊ࡢᱱ➃ࢹ࢕ࢸ࣮ࣝࡣࠊᅗ 2.1 ࡢᅾ᮶ࢹ࢕ࢸ࣮ࣝ࡟ᑐࡋ࡚ࠊᅗ 2.2 ࡢ㗰∦ᤄධࢹ

− 168 −

࢕ࢸ࣮ࣝ࡜ࠊᅗ 2.3 ࡢ࣑ࢽࢫ࢝ࣛࢵࣉᇙᡠࡋࢹ࢕ࢸ࣮ࣝࢆ⏝࠸ࡿࡇ࡜࡛ࠊࢫ࢝ࣛࢵࣉ㒊ࢆᇙࡵࡿᨃఝࣀࣥࢫ࢝ࣛࢵࣉᕤἲ࡜ࡋࡓࠋࡲࡓࠊᨵⰋࢫ࢝ࣛࢵࣉᕤἲ࡜ࡋ࡚ࠊᅗ 2.4 ࡢࣇ࢕ࣞࢵࢺṧࡋࢹ࢕ࢸ࣮ࣝࢆ⏝࠸ࡓࠋᅗ 2.1 ࡢᅾ᮶ࢹ࢕ࢸ࣮ࣝࡣࠊJASS6 ࡛᥎ዡࡉࢀࡿ r=35mm ࡜ r=10mm ࡢ」ྜ෇ᆺࡢࢫ࢝ࣛࢵࣉᙧ≧࡜ࡋࡓࠋᅗ 2.2 ࡢ㗰∦ᤄධࢹ࢕ࢸ࣮ࣝࡣࠊணࡵࢫ࢝ࣛࢵࣉ࡜ྠᙧ≧࡟ຍᕤࡋࡓ㗰∦ࢆࢫ࢝ࣛࢵࣉ㒊࡟ᤄධࡋࠊ㗰∦࡜ᱱࣇࣛࣥࢪཬࡧ࢙࢘ࣈࢆ㝮⫗⁐᥋࡟࡚᥋ྜࡍࡿᨃఝࣀ
ࣥࢫ࢝ࣛࢵࣉᕤἲࡢࢹ࢕ࢸ࣮࡛ࣝ࠶ࡿࠋᅗ 2.3 ࡢ࣑ࢽࢫ࢝ࣛࢵࣉᇙᡠࡋࢹ࢕ࢸ࣮ࣝࡣࠊᅾ᮶ࢹ࢕
ࢸ࣮ࣝࡢࢫ࢝ࣛࢵࣉᙧ≧࡟ᑐࡋ࡚㧗ࡉ 13mmࠊr=6.5mm ࡢ࣑ࢽࢫ࢝ࣛࢵࣉࢆタࡅࠊ඘ሸ⁐᥋ࡍࡿࡇ࡜࡛࣑ࢽࢫ࢝ࣛࢵࣉ㒊ࢆᇙࡵࡿᨃఝࣀࣥࢫ࢝ࣛࢵࣉᕤἲ࡜ࡋࡓࠋᅗ 2.4 ࡢࣇ࢕ࣞࢵࢺṧࡋࢹ࢕ࢸ࣮ࣝࡣࠊᅾ᮶ࢹ࢕ࢸ࣮ࣝࡢࢫ࢝ࣛࢵࣉ࡟ᑐࡋ࡚ࠊࣇ࢕ࣞࢵࢺ㧗ࡉࢆ 5mm ṧࡋ࡚」ྜ෇ᆺࡢࢫ
࢝ࣛࢵࣉ㒊ࢆタࡅࡓᨵⰋࢫ࢝ࣛࢵࣉᕤἲࡢࢹ࢕ࢸ࣮ࣝ࡜ࡋࡓࠋ






ࢩ ࢔ 3/

3/
61%
5 



5 





ࢩ ࢔ 3/

5 

5 

















ࢲ࢖࢔ࣇ࣒ࣛᅾ᮶ 㸦ᇶ ᮏ㸧





ࣇࣛࣥࢪ

 

ᅗ 㻞㻚㻝㻌 ᅾ᮶䝕䜱䝔䞊䝹



ࣇࣛࣥࢪ

ࢲ࢖࢔ࣇ࣒ࣛ









㛤ඛ

㗰∦ᤄධ





ᅗ 㻞㻚㻞㻌 㗰∦ᤄධ䝕䜱䝔䞊䝹


඘ሸ⁐᥋



ࢩ ࢔ 3/ࢩ ࢔ 3/ࣇ ࢕ ࣞ ࢵ ࢺ 5࣑ࢽࢫ ࢝ࣛࢵࣉᇙᡠ ࡋ



ேᕤḞ㝗
㸦ࣇࣛࢵࢡ

ᅗ 㻞㻚㻟㻌 䝭䝙䝇䜹䝷䝑䝥ᇙᡠ䛧䝕䜱䝔䞊䝹ࢲ࢖࢔ࣇ࣒ࣛ



ࣇࣛࣥࢪ



ࣇࣛࣥࢪ



ࢲ࢖࢔ࣇ࣒ࣛ









5 





5 





5 

ࣇ ࢕ ࣞ ࢵ ࢺ ṧ ࡋ PP

ᅗ 㻞㻚㻠㻌 䝣䜱䝺䝑䝖ṧ䛧䝕䜱䝔䞊䝹 ᐇ㦂⤖ᯝ ⾲ 2 ࡟ᐇ㦂⤖ᯝ୍ぴࢆ♧ࡍࠋᮏ◊✲࡛ࡣࠊࢫࢣࣝࢺࣥ᭤⥺ࢆ⏝࠸࡚ᰕᱱ⁐᥋᥋ྜ㒊ࡢኚᙧ⬟ຊࢆホ౯ࡋࡓࠋࢫࢣࣝࢺࣥ᭤⥺࡟ࡼࡿ྾཰࢚ࢿࣝࢠ࣮Ws ࠿ࡽ⟬ฟࡋࡓ⣼✚ረᛶኚᙧಸ⋡ Șs ࢆኚᙧ⬟ຊࡢホ౯ᣦᶆ࡜ࡋ࡚⏝࠸ࡓࠋࡲࡓࠊ඲ረᛶ⪏ຊ cPp ࡟ᑐࡍࡿ᭱኱⪏ຊ ePmax ࡢẚ࡜ࡋ࡚⪏ຊୖ᪼⋡ Į ࢆ⟬ฟࡋࡓࠋᅗ 3 ࡟⧞ࡾ㏉ࡋ㍕Ⲵ࡟ࡼࡿⲴ㔜-ኚᙧ㛵ಀ࡜ࢫࢣࣝࢺࣥ᭤⥺ࡢ୍㒊ࢆ♧ࡍࠋᅗ
3 ࡢźࡣࠊ⧞ࡾ㏉ࡋ㍕Ⲵ࡟ࡼࡿ◚᩿఩⨨ࢆ♧ࡍࠋᶓ㍈ࡣࠊຍຊⅬኚ఩࠿ࡽᱱ➃㒊ࡢᅇ㌿ゅཬࡧࣃࢿࣝࡢࡏࢇ᩿ኚᙧ㔞ࢆ⿵ṇࡋࡓᱱ㒊ᮦࡢ⣧ኚᙧ㔞࡜ࡋࡓࠋ࡞࠾ࠊᅗ 1 ࡟♧ࡍࡼ࠺࡟ࠊ㖄┤ୗྥࡁࢆࣉࣛࢫ᪉ྥ࡜ࡋ࡚࠸ࡿࠋᐇ㦂ࢆ㏻ࡌ࡚ࠊ᪩ᮇ࡟◚ቯࡋࡓヨ㦂యࡣࠊL_BS ࡜ H_BS ヨ㦂యࡢᅾ᮶ࢹ࢕ࢸ࣮࡛ࣝࠊࡑࢀࡒࢀ 4 cįp ࡛◚ቯࡋࡓࠋࡇࡇࡢ cįp ࡣࠊᱱࡢረᛶ⪏ຊ᫬ࡢᙎᛶኚᙧࢆ♧ࡍࠋL_BSࠊH_BS ࢆ㝖ࡃ඲࡚ࡢヨ㦂యࡣࠊ6 cįp ௨ୖࡲ࡛㍕Ⲵࡍࡿࡇ࡜ࡀ࡛ࡁࠊᏳᐃࡋࡓᒚṔࢆ♧ࡋࡓࠋ᭱ࡶ㐜ࡃ◚᩿ࡋࡓヨ㦂యࡣࠊ㗰∦ᤄධࢹ࢕ࢸ࣮࡛ࣝ㧗㠎ᛶࡢ H_BS_P ࡛࠶ࡾࠊ8 cįp1 ᅇ┠ࡢ㍕Ⲵ
᫬࡟࠾ࡅࡿ◚᩿࡛࠶ࡗࡓࠋ⪏ຊୖ᪼⋡Șࢆ⟬ฟࡋࠊྛヨ㦂య࡟࠾ࡅࡿ⪏ຊࢆホ౯ࡋࡓࠋ᭱኱⪏ຊ
P

㹡 max

ࡣࠊ⧞ࡾ㏉ࡋ㍕Ⲵ࡟ࡼࡿṍ◳໬࡟ࡼࡾ㈇ഃࡢ್ࡀ኱ࡁࡃ࡞ࡾࠊȘࡣ඲య࡛ 1.05㹼1.25 ࡜࡞− 169 −

ࡗࡓࠋ◚᩿ഃࡢȘࢆホ౯ࡍࡿ࡜ࠊL_BSࠊH_BSࠊL_BF_5 ヨ㦂య࡛ࡑࢀࡒࢀ 1.05ࠊ1.19ࠊ1.19 ࡜࡞ࡾࠊ1.2 ࢆୗᅇࡿ⤖ᯝ࡜࡞ࡗࡓࠋࡑࡢ௚ࡢヨ㦂య࡟ࡘ࠸࡚ࠊప㠎ᛶヨ㦂య࡛ 1.20㹼1.21ࠊ㧗㠎ᛶヨ㦂య࡛ 1.23㹼1.25 ࡜࡞ࡾࠊᱱ➃ࢹ࢕ࢸ࣮ࣝ࡟ࡼࡿ㐪࠸ࡣぢࡽࢀࡎࠊ㧗㠎ᛶヨ㦂యࡢ᭱኱⪏ຊࡣ኱ࡁࡃ࡞ࡗࡓࠋ⣼✚ረᛶኚᙧಸ⋡ Șs ࢆ⟬ฟࡋࠊྛヨ㦂య࡟࠾ࡅࡿኚᙧ⬟ຊࢆホ౯ࡋࡓࠋ඲యࡢ Șs ࡣ 1.9㹼6.6 ࡜࡞ࡾࠊヨ㦂య࡟ࡼࡗ࡚኱ࡁࡃᕪࡀ⾲ࢀࡓࠋ◚᩿ഃࡢ Șs ࢆホ౯ࡍࡿ࡜ࠊ᪩ᮇ࡟
◚᩿ࡋࡓ L_BSࠊH_BS ࡀࡑࢀࡒࢀ 1.9ࠊ4.7 ࡛࠶ࡾࠊప࠸ኚᙧ⬟ຊࢆ♧ࡋࡓࠋ◚ቯ㠌ᛶู࡟ࡳࡿ
࡜ࠊప㠎ᛶヨ㦂య࡛ 1.9㹼5.3 ࡜᭱኱࡛ 2.8 ಸࡢᕪࢆ♧ࡋࡓࡀࠊ㧗㠎ᛶヨ㦂య࡛ࡣ 4.7㹼6.6 ࡜ 1.4
ಸ⛬ᗘ࡜࡞ࡗࡓࠋ ⾲ 2 ᐇ㦂⤖ᯝ୍ぴ

L_BS
H_BS
L_BF_5
H_BF_5
L_BS_P
H_BS_P
L_BM
H_BM

ຍຊ

ePmax

eįmax

įsmax

Ws

᪉ྥ

(kN)

(mm)

(mm)

(kN࣭mm)

+
+
+
+
+
+
+
+
-

780
-811
883
-828
887
-909
914
-913
844
861
960
959
896
-918
915
-923

80.76
-86.46128.20-85.33123.39-125.21125.82-128.98
127.09-130.61124.95-126.87
126.56-125.98
126.10-129.89

81.88-117.50
159.05-122.95
147.65-190.04
165.19-178.31154.99-189.73
162.58-176.56
151.25-181.76
162.58-181.5533814
54207110473683036
85011
11664110322811143493286
11634810174811258989855
112744104433116531

Į
1.05
1.09
1.19
1.11
1.19
1.22
1.23
1.23
1.21
1.24
1.23
1.25
1.20
1.23
1.23
1.24

Șs
1.9
3.1
5.9
4.7
4.8
6.6
5.9
6.3
5.3
6.6
5.8
6.4
5.1
6.4
5.9
6.6

1200
800

1200

P(kN)

800

400
į(mm)

0

į(mm)

0
-400

-800
-1200
-200 -150 -100 -50ᐇ㦂್䝇䜿䝹䝖䞁᭤⥺

0

-800

-1200
-200 -150 -100 -50
50 100 150 200㻌 㻌 㼍㻙㻝㻕㻌㻸㼋㻮㻿㼋㻼
800

P(kN)

400

-400

1200

a

ヨ㦂యྡ

ᐇ㦂್
䝇䜿䝹䝖䞁᭤⥺0

50 100 150 200㻌 㻌 㻌 㼍㻙㻞㻕㻌㻴㼋㻮㻿㼋㻼
1200

P(kN)

800

400

P(kN)

400

į(mm)

0

į(mm)

0
-400

-400
-800
-1200
-200 -150 -100 -50ᐇ㦂್䝇䜿䝹䝖䞁᭤⥺0

50 100 150 200㻌 㻌 㻌 㼎㻙㻝㻕㻌㻸㼋㻮㻹

-800
-1200
-200 -150 -100 -50ᐇ㦂್䝇䜿䝹䝖䞁᭤⥺0

50 100 150 200㻌 㻌 㻌 㻌 㼎㻙㻞㻕㻌㻴㼋㻮㻹ᅗ 㻟㻌 Ⲵ㔜㻙ኚᙧ㛵ಀ䛸䝇䜿䝹䝖䞁᭤⥺㻌ࡲ࡜ࡵ
⌧ሙ⁐᥋ᆺᰕᱱ⁐᥋᥋ྜ㒊ࡣࠊࢫ࢝ࣛࢵࣉࡢᏑᅾ࡟ࡼࡾᮍ⁐╔㒊ඛ➃࡟ᛂຊࡀ㞟୰ࡋࠊே⏕ࡢ
ప࠸ 6$: 㒊ࡀࡁ⿣㐍ᒎ࡜ྠ᫬࡟⬤ᛶ◚ቯࡍࡿࡓࡵኚᙧ⬟ຊࡀᑠࡉ࠸ࠋ
㗰∦ᤄධࢹ࢕ࢸ࣮ࣝࡣᱱ➃ࣇࣛࣥࢪ࡟ᛂຊࡀఏ㐩ࡉࢀࡿࡇ࡜࡛ࠊࢫ࢝ࣛࢵࣉᗏࡢᛂຊ㞟୰ࢆ⦆࿴ࡋࠊᰕᱱ⁐᥋᥋ྜ㒊࡟ᑐࡋ࡚༑ศ࡞⪏ຊ࣭ኚᙧ⬟ຊࢆ♧ࡋࡓࠋࣇ࢕ࣞࢵࢺṧࡋࢹ࢕ࢸ࣮ࣝࡣࠊᱱ➃ࣇࣛࣥࢪ࡬ࡢᛂຊఏ㐩࡟ᐤ୚ࡍࡿ 6$: 㒊ࡢ᭷ຠ᩿㠃ࢆ☜ಖࡋࠊࢫ࢝ࣛࢵࣉᗏࡢᛂຊࢆᱱ➃ࣇࣛࣥࢪ࡬ఏ㐩ࡉࡏࡿࡇ࡜࡛༑ศ࡞⪏ຊ࣭ኚᙧ⬟ຊࢆ♧ࡋࡓࠋ࣑ࢽࢫ࢝ࣛࢵࣉᇙᡠࡋࢹ࢕ࢸ࣮ࣝࡣࠊᰕ࡜࢙࢘ࣈࡢ㝽㛫ࡀ᪂ࡓ࡞ᛂຊ㞟୰⟠ᡤ࡜࡞ࡿࡇ࡜࡟࡞
ࡾࠊ඘ሸ⁐᥋㒊ࡢᘏᛶࡁ⿣㐍ᒎ࡟ࡼࡾᛂຊࡀᱱ➃ࣇࣛࣥࢪ࡟ఏ㐩ࡉࢀࡿࡇ࡜࡛༑ศ࡞⪏ຊ࣭ኚᙧ⬟ຊࢆ♧ࡋࡓࠋ
␲ఝࣀࣥࢫ࢝ࣛࢵࣉᕤἲࡣ㠌ᛶ್ࡀ - ࡜࠸࠺ప࠸್ࡸࠊᮍ⁐╔㛗ࡉࡀ PP ⛬ᗘࡢ㛗ࡉ࡛࠶ࡗ࡚ࡶࠊ༑ศ࡞⪏ຊ࣭ኚᙧ⬟ຊࡀ࠶ࡿࠋ
㸦ඹྠ◊✲ศ㔝㸸᥋ྜタィᏛศ㔝㸧

− 170 −

ᘓ⠏ᵓ㐀৷ৈᙇৡ㗰࡬ࡢৈ࢚ࢿࣝࢠ࣮ᐦᗘ⁐᥋ࡢ㐺৷㏆␥኱Ꮫ ᕤᏛ㒊   ᓮ㔝 Ⰻẚ࿅㸯㸬ࡣࡌࡵ࡟

࡚㔠ᒓ࡟㞟ගࡋࡓ≧ែ࡛↷ᑕࡋࠊ㔠ᒓࢆᒁ㒊ⓗ࡟⁐ゎ࣭ +6$ ࡣࠊࠕ㠉᪂ⓗᵓ㐀ᮦᩱࢆ⏝࠸ࡓ᪂ᵓ㐀ࢩࢫࢸจᅛࡉࡏࡿࡇ࡜࡟ࡼࡗ࡚᥋ྜࡍࡿ᪉ἲ࡛࠶ࡿࠋ࣮ࣞࢨ⁐࣒ᘓ⠏≀◊✲㛤Ⓨࣉࣟࢪ࢙ࢡࢺࠖ࡟࠾࠸࡚ࠊᚑ᮶㗰ࡢ᥋࡟ࡣࠊ㧗㏿῝⁐㎸ࡳ⁐᥋ࡀྍ⬟ࠊ⁐᥋ධ⇕㔞ࡀᑡ࡞࠸ࠊ⣙  ಸࡢ㝆అᙉᗘࢆᣢࡓࡏ࡚ᘓ≀ࡢ⪏㟈ᛶࢆྥୖࡉࡏࠊ

⁐᥋ኚᙧࡀᑡ࡞࠸࡜࠸࠺≉ᚩࡀ࠶ࡿࠋࡲࡓࠊ⇕ᙳ㡪㒊ࡢ㟈ᗘ  ࢡࣛࢫ࣭↓ᦆയ ᙎᛶタィ ࡢᘓ⠏≀ࢆ┠ᣦࡋ㛤Ⓨ㠃✚ࢆ⊃ࡃࡍࡿࡇ࡜ࡀྍ⬟࡞ࡢ࡛ࠊ㌾໬ࢆ㜵Ṇࠊࡲࡓࡣࡉࢀࡓࠋ⤒῭ྜ⌮ᛶࢆ㏣ồࡋࡓ㧗ᙉᗘ໬ࢆᅗࡿࡓࡵࠊྜ

㌾໬ࡍࡿ㒊ศࢆῶᑡࡉࡏࡿຠᯝࡀᮇᚅ࡛ࡁࡿࠋ࣮ࣞࢨ⁐㔠ῧຍ㔞ࡢపῶ࡜⇕ฎ⌮ᕤ⛬ࡢ┬␎ࠊ⡆␎໬ࢆᣦྥࡋࡓ

᥋ࢆ㐺⏝ࡋࡓ◊✲ࡢ⤖ᯝࠊ㌾໬ࡍࡿ㒊ศࡀ㠀ᖖ࡟⊃ࡃ࡞㠉᪂ⓗ࡞ᘓ⠏ᵓ㐀⏝㉸㧗ᙇຊ㗰ᮦ࡛࠶ࡿࠋ+6$ ࡢ᭱ࡗ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋᘬᙇヨ㦂࡛ࡶࠊ⊃࠸㌾໬㒊኱ࡢ≉ᚩࡣ㝆అᙉᗘࡢ㧗ࡉ࡟࠶ࡿࠋ⾲  ࡟ +6$ ࡜ࢆ࿘ࡾࡀᣊ᮰ࡍࡿࡓࡵࠊ㌾໬㒊࡛ࡣ◚ቯࡋ࡞࠸ࡇ࡜ࡶ᫂

61 ࡢ㝆అᙉᗘࡢẚ㍑ࢆ♧ࡍࠋ+6$ ࡢ㝆అᙉᗘࡣࡽ࠿࡟࡞ࡗࡓࠋࡼࡗ࡚ࠊ⁐᥋ࡋ࡚ࡶẕᮦࡢᙉᗘ 1PPtࢆ㉸࠼ࡿࠋ

1PPtࢆࡑࡢࡲࡲ౑⏝࡛ࡁࡿྍ⬟ᛶࡀ࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿ ୍⯡ⓗ࡟ࠊ+6$ ࡢ⁐᥋࡟ࡣసᴗຠ⋡ࠊ⏕⏘ᛶࡀ㧗࡟࡞ࡗࡓ   ࠋ࠸࢔࣮ࢡ⁐᥋ࢆ⏝࠸ࡿࠋࡋ࠿ࡋࠊ⁐᥋ධ⇕࡟ࡼࡗ࡚⁐᥋ ࡋ࠿ࡋࠊ࣮ࣞࢨ⁐᥋ࡣ㠀⁐᥋ᮦᩱࢆ࣑ࣜ༢఩௨ୗ࡛ᐦ

㒊ࡀ㌾໬ࡋࠊ⁐᥋㒊ࡢ㝆అᙉᗘࡀẕᮦࡢつ᱁㝆అᙉᗘ╔ࡉࡏࡿᚲせࡀ࠶ࡾࠊ㝽㛫ࡀ኱ࡁ࠸࡜࣮ࣞࢨࡀᢤࡅ࡚ࡋ

1PPtࢆୗᅇࡿሙྜࡀ࠶ࡿ  ࠋࡇࢀ࡟ࡼࡗ࡚ẕᮦ࡜⁐ࡲ࠺ࡇ࡜࠿ࡽࠊ⟶⌮ࡀ㠀ᖖ࡟㞴ࡋ࠸࡜࠸࠺ၥ㢟ࡀ࠶ࡿࠋ᥋㒊࡟㝆అᙉᗘࡢ㐪࠸ࡀ⏕ࡲࢀࠊẕᮦࡀⲴ㔜࡟⪏࠼ࡿࡇࡲࡓࠊ⁐᥋࣡࢖ࣖࡸ⁐᥋Წ࡞࡝ࡢ⁐ຍᮦࢆ⏝࠸ࡎ࣮ࣞࢨ

࡜ࡀ࡛ࡁ࡚ࡶ⁐᥋㒊ࡀⲴ㔜࡟⪏࠼ࡽࢀࡎࠊᦆയࠊኚᙧࠊ

࡛ẕᮦࢆ⁐࠿ࡍࡔࡅ࡛᥋ྜࡍࡿࡓࡵࠊ⁐᥋㒊࡟࢔ࣥࢲ࣮

◚᩿ࡋ࡚ࡋࡲ࠺ྍ⬟ᛶࡀ࠶ࡗࡓࠋࡘࡲࡾ࢔࣮ࢡ⁐᥋࡛ࡣࣇ࢕ࣝ࡜ࡼࡤࢀࡿพࡳࡀ࡛ࡁ࡚ࡋࡲ࠺ࠋ࢔ࣥࢲ࣮ࣇ࢕ࣝ

+6$ ࡢ㝆అᙉᗘࡢ㧗ࡉࡀ༑ศ࡟Ⓨ᥹࡛ࡁ࡞࠿ࡗࡓࠋ

ࡀᏑᅾࡍࡿ࡜ࠊⲴ㔜ࡀຍࢃࡗࡓ㝿࡟࢔ࣥࢲ࣮ࣇ࢕ࣝࡀᛂ ࡇࡢၥ㢟ࢆゎỴࡍࡿࡓࡵ࡟ࠊ࣮ࣞࢨ⁐᥋ࡢ㐺⏝࡟ࡘ࠸ຊ㞟୰㒊࡜࡞ࡾࡁ⿣ࡀ⏕ࡌࡿྍ⬟ᛶࡀ࠶ࡿࠋ᳨࡚ウࢆ⾜ࡗࡓ ࠋ࣮ࣞࢨ⁐᥋࡜ࡣ࣮ࣞࢨගࢆ⇕※࡜ࡋ ࡇࢀࡽࡢ࣮ࣞࢨ⁐᥋ࡢḞⅬࢆゎỴࡍࡿ⁐᥋ἲ࡜ࡋ࡚ࣞ
࣮ࢨ࢔࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋㸦௨ୗࣁ࢖ࣈࣜࢵࢻ⁐᥋⾲  +6$ ࡜ 61 ࡢつ᱁㝆అᙉᗘࡢẚ㍑

࡜⛠ࡍ㸧࡟ὀ┠ࡋࡓࠋࣁ࢖ࣈࣜࢵࢻ⁐᥋࡜ࡣࠊ࣮ࣞࢨ⁐᥋࡜࢔࣮ࢡ⁐᥋ࡢ  ✀㢮ࡢ⁐᥋ࢆ࡯ࡰྠ᫬࡟⾜࠺ࡇ࡜࡛୧⪅ࡢ㛗ᡤࢆ⏕࠿ࡋ࡞ࡀࡽࠊḞⅬࢆ⿵࠺⁐᥋ἲ࡛࠶ࡿࠋ
ࣁ࢖ࣈࣜࢵࢺ⁐᥋࡟࠾࠸࡚ࡶࠊᚑ᮶ࡢ⁐᥋ἲ࡜ẚ㍑ࡋ࡚
㧗㏿῝⁐㎸ࡳ⁐᥋ࡀྍ⬟ࠊ⁐᥋⇕ᙳ㡪ࡀ㠀ᖖ࡟⊃࠸ࠊ⁐᥋ኚᙧࡀᑡ࡞࠸࡜࠸࠺≉ᚩࡀ࠶ࡿࠋࡇࢀࡲ࡛ࡢ◊✲࡟࠾࠸࡚ࠊࣁ࢖ࣈࣜࢵࢻ⁐᥋ࢆ⏝࠸ࡓ⁐᥋⥅ᡭࡢ࣐ࢡࣟヨ㦂ࠊࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂ࠊᘬᙇヨ㦂ࢆ⾜࠸ࠊࣁ࢖ࣈࣜࢵࢻ⁐᥋ࢆ㐺⏝ࡍࡿࡇ࡜࡟ࡼࡗ࡚⇕ᙳ㡪㒊ࡢᖜࢆ⊃ࡵࡽࢀࠊ⁐᥋㒊ࡢ㌾໬㒊ࡶ⊃ࡃ࡛ࡁࡿࡇ࡜ࠊࣁ࢖ࣈࣜࢵࢻ⁐᥋࡛ࡣ࣮ࣞࢨ⁐᥋࡟ẚ࡭◳໬㒊ࢆ⊃ࡃࡍࡿࡇ࡜ࠊ㌾໬㒊ࡀ㠀ᖖ࡟⊃ࡃ࡞ࡿࡇ࡜࡟ࡼࡾረᛶኚᙧࡀᣊ᮰ࡉࢀࠊ+6$ ࡢẕᮦࡢ㝆అᙉᗘࢆ⁐᥋㒊࡛ࡶⓎ᥹ࡍࡿࡇ࡜ࡀ࡛ࡁࡿࡇ࡜
ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ  ࠋ ᮏ◊✲࡛ࡣࠊᯈཌࡀ PP ࡜ཌࡃ࡞ࡗࡓሙྜࡢ⁐᥋㒊ࡢᛶ≧࡟ࡘ࠸࡚ࡶࠊ࣐ࢡࣟヨ㦂࡜ࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂࡟ࡼࡾ᳨ウࢆ⾜ࡗࡓࠋࡉࡽ࡟ࠊ࣮ࣞࢨ࢔࣮ࢡࣁ࢖ࣈࣜࣜᅗ  ࣮ࣞࢨ࢔࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡢᵝᏊࢵࢻ⁐᥋㒊ࡢࡌࢇᛶࢆ᥎ᐃࡍࡿࡓࡵࡢ᪉ἲ࡜ࡋ࡚ࢩࣕࣝ

− 171 −

 ⁐᥋᮲௳ ࢔࣮ࢡ⁐᥋ࡢ⁐᥋᮲௳ࢆ⾲  ࡟ࠊࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡢ⁐᥋᮲௳ࢆ⾲  ࡟♧ࡍࠋࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡣ࢔࣮ࢡඛ⾜࡛⾜࠸ࠊ࢔࣮ࢡࡣ┤ὶࣃࣝࢫ࣮ࣔࢻࢆ⏝࠸ࡓࠋ ࢔࣮ࢡ⁐᥋࡟ẚ࡭ࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡢ⁐᥋㏿ᗘࡀ  ಸ⛬ᗘ᪩ࡃࠊ㧗࢚ࢿࣝࢠ࣮ᐦᗘ⁐᥋ࡣ㠀ᖖ࡟ຠ⋡ࡢⰋ࠸ࡇ࡜ࡀศ࠿ࡿࠋᅗ  )3' ࡀⓎ⏕ࡋࡓヨ㦂∦⾲  ࢔࣮ࢡ⁐᥋ࡢ⁐᥋᮲௳㸦࣮ࣞࢨ⁐᥋㸪ࣁ࣮ࣇࢧ࢖ࢬヨ㦂∦㸧


⁐᥋㟁

㟁ᅽ

⁐᥋㏿ᗘ ࢩ࣮ࣝὶ $9 PPLQ  ࢻ࢞ࢫࣆ࣮⾪ᧁヨ㦂ࢆ⏝࠸ࠊࣇࣝࢧ࢖ࢬࢩࣕࣝࣆ࣮⾪ᧁヨ㦂∦࣡࢖ࣖ㸦ᶆ‽ヨ㦂∦㸧࡟ࡼࡗ࡚ࠊ࣮ࣞࢨ࢔࣮ࢡࣁ࢖ࣈࣜࢵࢻ

 ࣃࢫ┠







 ⣭㗰⏝⁐᥋ࡉࢀࡓ㧗ᙇຊ㗰ᮦ +6$ ࡢ⁐᥋㔠ᒓ㒊ࡢࡌࢇᛶࢆ

㹼 ࣃࢫ┠







&2΃ ࢯࣜࢵࢻ࣡ࣖ

 ࣃࢫ┠







ホ౯ࡍࡿࡇ࡜ࢆヨࡳࡓࠋ㸰㸬᪤ ࡢ◊✲⾲  ࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡢ⁐᥋᮲௳ヨ㦂య
*DS PP  ࣮ࣞࢨ⁐᥋ࡉࢀࡓ PP ཌࡢ +6$ ࡢ⁐᥋㔠ᒓ࡟㛵ࡋ࡚ࡣࠊヨ㦂ᗘΥ̺ΥΥࡢᗘ࡛ࠊࣁ࣮ࣇࢧ

࢖ࢬヨ㦂∦ࢆ⏝࠸ࡓࢩࣕࣝࣆ࣮⾪ᧁヨ㦂ࡀ࡞ࡉࢀ࡚࠸ࡿࠋ
ࡑࡢ⤖ᯝ Υ࡜̺Υ࡛ࡣ )3' ࡢⓎ⏕ࡀࡳࡽࢀ࣮ࣞࢨ⁐ࢩ࣮ࣝࢻ࢞ࢫ
$U㸣&2΃ȭPP࣮ࣞࢨࣃ࣮࣡
N: 


⁐᥋㏿ᗘ
PPLQ 


࢔࣮ࢡ㟁ὶ
$ 

࢞ࢫὶ㔞
/PLQ 

࣡࢖ࣖ





 ⣭㗰⏝ࢯࣜࢵࢻ࣡ࣖ
ȭPP ᥋㒊ࡢࡌࢇᛶࢆホ౯ࡍࡿࡇ࡜ࡣ࡛ࡁ࡞࠿ࡗࡓ  ࠋ  )3'㸦)UDFWXUH 3DWK 'HYLDWLRQ㸧࡜ࡣᘏᛶࡁ⿣ࡀẕᮦഃ࡟㐓⬺ࡍࡿࡇ࡜࡛ࠊࡇࢀࡀⓎ⏕ࡍࡿࡇ࡜࡟ࡼࡾࡌࢇ
ᛶࢆ㐺ษ࡟ホ౯࡛ࡁ࡞࠸ࠋ⁐᥋㔠ᒓ㒊ࡢᖜࡀ⊃࠸ሙྜࡸẕᮦ㒊࡜⁐᥋㔠ᒓ㒊ࡢ◳ࡉࡢᕪࡀ኱ࡁ࠸ሙྜ࡟㉳ࡇࡿࡇ࡜࡜ࡉࢀ࡚࠸ࡿࠋ)3' ࡢⓎ⏕ࡀぢࡽࢀࡓ࣮ࣞࢨ⁐᥋ヨ㦂∦ࡢ୍౛ࢆᅗ  ࡟♧ࡍࠋ㸱㸬ᐇ㦂ᴫせ ౑⏝㗰ᮦ +6$ ࡟ࡣࠊ஝ᘧ᥋ྜ⏝ࡢ +6$$ ࡜⁐᥋᥋ྜ⏝ࡢ+6$% ࡀ࠶ࡿ  ࠋᮏ◊✲࡛ࡣ⁐᥋᥋ྜ⏝ࡢ +6$% ࢆ౑⏝ࡋࡓࠋᮏ◊✲࡛౑⏝ࡋࡓ +6$% ࡢᶵᲔⓗᛶ㉁ࢆ⾲ ࡟ࠊᡂศศᯒ⤖ᯝࢆ⾲  ࡟♧ࡍࠋ㝆అᛂຊࡣ  1PPt࡜ࠊᛂຊẚࡣ ࡜㠀ᖖ࡟኱ࡁ࡞್࡜࡞ࡗ࡚࠸ࡿࠋ

ᅗࣁ࢖ࣈࣜࢵࢻ⁐᥋ᯈ⾲  ౑⏝ࡋࡓ +6$% ࡢᶵᲔⓗᛶ㉁
ཌࡉ

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1PPt 1PPt 

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⾲  ౑⏝ࡋࡓ +6$% ࡢᡂศศᯒ⤖ᯝ ༢఩PDVV 
&

6L

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  



  
0R

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&HT

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ᅗ  ᙧ≧ ᐃ⤖ᯝࣁ࢖ࣈࣜࢵࢻ⁐᥋㸦ୖ㸧㸪࢔࣮ࢡ⁐᥋㸦ୗ㸧

− 172 − ࣁ࢖ࣈࣜࢵࢻ⁐᥋࠾ࡼࡧ࢔࣮ࢡ⁐᥋ࢆ⏝࠸࡚✺ྜࡏ⁐᥋ᯈࢆసᡂࡋࡓࠋ౑⏝ࡋࡓᯈࡢࢧ࢖ࢬࡣࠊࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡀ PPࠊ࢔࣮ࢡ⁐᥋ࡀ PP ࡜ࡋࠊࣁ࢖
ࣈࣜࢵࢻ⁐᥋ࡣ PP ࡢ㠃ࢆࠊ࢔࣮ࢡ⁐᥋ࡣ PP ࡢ㠃ࢆ✺ྜࡏ⁐᥋ࡋࡓࠋ࠸ࡎࢀࡢ⁐᥋ἲ࡛ࡶࠊ๭ࢀࡸ࣎࢖ࢻ
ࡢ࡞࠸⁐᥋ᯈࢆసᡂࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋࣁ࢖ࣈࣜࢵࢻ⁐᥋ᯈࡢ෗┿ࢆᅗ  ࡟♧ࡍࠋ వ┒ࡾ㒊ࡢᙧ≧ ᐃ⤖ᯝࢆᅗ  ࡟♧ࡍࠋࣁ࢖ࣈࣜࢵࢻ

ࣜࢵࢻࡣ࢔࣮ࢡ࡟ẚ࡭࡚⁐᥋㔠ᒓ㸪⇕ᙳ㡪㒊ඹ࡟⠊ᅖࡀ⊃࠸ࡇ࡜ࡀศ࠿ࡿࠋ㌾໬㒊࡜࡞ࡾᚓࡿ⇕ᙳ㡪㒊ࡣࠊ࢔࣮ࢡ⁐᥋ࡀ PP ௨ୖ࡞ࡢ࡟ᑐࡋ࡚ࠊࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡣᖹᆒ࡛⣙ PP ࡜ࠊ࢔࣮ࢡ⁐᥋ࡢ༙ศ௨ୗ࡜࡞ࡗ࡚࠸ࡓࠋ
 ࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂 ࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂⤖ᯝࡢ୍౛ࢆᅗ  ࡟♧ࡍࠋヨ㦂∦ࡢ୰ᚰ࠿ࡽ PP ࡢ㛫㝸࡛ᕥྑ࡟ PP ࡢ⠊ᅖ࡟ヨ㦂ࢆ⁐᥋࡟ࡣ⇕ᙳ㡪㒊࡟ࢃࡎ࠿࡞࡬ࡇࡳࡀ࡛ࡁ࡚࠸ࡿࡀ
⾜ࡗࡓࠋィ ࣛ࢖ࣥࡣࠊヨ㦂∦ࡢ୰ኸ & ࣛ࢖ࣥ ࠊୖ㠃వ┒ࡣᑠࡉࡃࠊ࢔࣮ࢡ⁐᥋ࡢవ┒࡜ẚ࡭㛗ࡉࡣ  ศ࠿ࡽ PP 8 ࣛ࢖ࣥ ࠊୗ㠃࠿ࡽ PP㹬 / ࣛ࢖ࣥ ࡢ  ࣛ࢖ࡢ ࠊ㧗ࡉࡣ  ศࡢ  ⛬ᗘ࡜㠀ᖖ࡟ᑠࡉ࠸ࡇ࡜ࡀศ
ࣥ࡜ࡋࡓࠋ
࠿ࡿࠋࡲࡓࠊ࣮ࣞࢨ⁐᥋࡛ぢࡽࢀࡓ᭱኱῝ࡉ PP㸪 ࢔࣮ࢡ⁐᥋ࡣ୰ᚰ㒊࠿ࡽ 㹼PP ࡢ⇕ᙳ㡪㒊ࡀ 㹼ᖜ PP ࡢ࢔ࣥࢲ࣮ࣇ࢕ࣝࡶࡳࡽࢀࡎࠊⰋዲ࡞ᙧ
+9 ⛬ᗘ㌾໬ࡋ࡚࠸ࡓࡢ࡟ᑐࡋࠊࣁ࢖ࣈࣜࢵࢻ⁐᥋࡟≧࡜࡞ࡗ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋ ࡇࢀࡽࡢ⁐᥋ᯈࡢ⁐᥋㒊࠿ࡽࣇࣝࢧ࢖ࢬࢩࣕࣝࣆ࣮⾪ࡣ኱ࡁ࡞㌾໬㒊ࡣぢᙜࡓࡽ࡞࠸ࠋࡲࡓࠊ࣮ࣞࢨ⁐᥋࡛ᗈᧁヨ㦂∦ࢆ᥇ྲྀࡋࡓࠋࣀࢵࢳࡢ఩⨨ࡣ⁐᥋㔠ᒓ୰ኸ࡜ࡋࠊ⠊ᅖ࡟ぢࡽࢀࡓ +9 ࢆ㉸࠼ࡿ◳໬㒊ࡶࠊ୍㒊ࡢࡳ࡜࡞ࢧ࢖ࢻࣀࢵࢳ࡜ࡋࡓࠋ

ࡗ࡚࠸ࡓࠋ㸲㸬ᐇ㦂⤖ᯝ

 ࣐ࢡࣟヨ㦂 ⁐᥋㒊ࡢ⁐᥋㔠ᒓ㒊࠾ࡼࡧ⇕ᙳ㡪㒊ࡢ኱ࡁࡉ࡜ࣀࢵࢳ
఩⨨ࡢ☜ㄆࢆ⾜࠺ࡓࡵࠊࢩࣕࣝࣆ࣮⾪ᧁヨ㦂∦ࡢ࣐ࢡࣟヨ㦂ࢆ⾜ࡗࡓࠋ࢚ࢵࢳࣥࢢ࡟ࡣ ◪㓟࢚ࢱࣀ࣮ࣝ⁐ᾮࢆ⏝࠸ࡓࠋ࣐ࢡࣟヨ㦂ࡢ⤖ᯝࢆẚ㍑ࡋࡓࡶࡢࢆᅗ  ࡟♧ࡍࠋ ཌࡉ PP ࡢᯈࢆ⁐᥋ࡋࡓሙྜ࡛ࡶࠊ࣮ࣞࢨ࡜ࣁ࢖ࣈᅗ  ࢚ࢿࣝࢠ࣮㑄⛣᭤⥺⾲  )3' ࡢⓎ⏕≧ἣᅗ  ࢩࣕࣝࣆ࣮⾪ᧁヨ㦂∦ࡢ࣐ࢡࣟヨ㦂⤖ᯝ䝡䝑䜹䞊䝇◳䛥(䠤䠲)㸦ᕥ㸸ࣁ࢖ࣈࣜࢵࢻ⁐᥋ࠊྑ㸸࢔࣮ࢡ⁐᥋㸧

Ͳ8

Ͳ6

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2

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6

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Υ

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‫ۑ‬

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440
420
400
380
360
340
320
300
280
260
240
220
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Ͳ10

 

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10

୰ᚰ䛛䜙䛾㊥㞳䠄mm䠅䜰䞊䜽䝝䜲䝤䝸䝑䝗ᅗ  ◳ࡉヨ㦂⤖ᯝࡢẚ㍑㸦& ࣛ࢖ࣥ㸧

− 173 −Υᅗ  ࢧ࢖ࢻࢢ࣮ࣝࣈ௜ࢩࣕࣝࣆ࣮ヨ㦂∦ࡃࡍࡿࡇ࡜ࡀ࡛ࡿࠋࡲࡓࠊ࢔ࣥࢲ࣮ࣇ࢕ࣝࡶⓎ⏕ࡋ࡞࠸ࠋ ࣇࣝࢧ࢖ࢬࡢ‽ᶆ‽ヨ㦂∦࡛ࡶ )3' ࡀⓎ⏕ࡋࡓࠋࡼࡗ࡚ࠊࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡢࡌࢇᛶホ౯࡟࠾࠸࡚ࠊᶆ
‽ヨ㦂∦ࢆ⏝࠸ࡓ㏻ᖖࡢホ౯᪉ἲ࡛ࡣ᭷ຠ࡞⁐᥋㔠ᒓࡢ⾪ᧁヨ㦂್ࢆᚓࡿࡇ࡜ࡣ࡛ࡁ࡞࠸ࠋᅗ  )3' ࡀⓎ⏕ࡋࡓヨ㦂∦㸦ࣁ࢖ࣈࣜࢵࢻ⁐᥋㸪ࣇࣝࢧ࢖ࢬヨ㦂∦㸧 ࢩࣕࣝࣆ࣮⾪ᧁヨ㦂 ࢩࣕࣝࣆ࣮⾪ᧁヨ㦂࡟ࡣ - ᆺィ⿦໬ࢩࣕࣝࣆ࣮
⾪ᧁヨ㦂ࢆ⏝࠸ࡓࠋヨ㦂∦ᮏᩘࡣࠊẕᮦ㸪ࣁ࢖ࣈࣜࢵࢻ

 ௒ᚋࠊ⁐᥋㔠ᒓෆࢆࡁ⿣ࡀ㏻㐣ࡍࡿࡼ࠺࡟ᕤኵࡋࡓヨ⁐᥋ࡢ⁐᥋㔠ᒓ㸪࢔࣮ࢡ⁐᥋ࡢ⁐᥋㔠ᒓ࠿ࡽࡑࢀࡒࢀ

㦂∦㸦౛࠼ࡤࠊᅗ  ࡟♧ࡍࢧ࢖ࢻࢢ࣮ࣝࣈ௜ࢩࣕࣝࣆ࣮ ᮏࠊィ  ᮏ࡛࠶ࡿࠋ

ヨ㦂∦㸧ࢆ⏝࠸ࡓࡌࢇᛶホ౯ヨ㦂᪉ἲࡸࠊᶆ‽ヨ㦂∦ࢆᗘỈ‽ࡣ ᗘ࡜ࡋࠊྛᗘ యࡎࡘᐇ㦂ࢆ⾜࠺ࡇ࡜ࡋࡓࠋ

⏝࠸ࡓ᭷ຠ࡞ホ౯ἲࢆ᳨ウࡍࡿᚲせࡀ࠶ࡿࠋ ࢚ࢿࣝࢠ࣮㑄⛣᭤⥺ࢆᅗ  ࡟♧ࡍࠋᅗ୰ࡢᫍ༳ࡣ )3'ࡀⓎ⏕ࡋࡓࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋࡲࡓࣁ࢖ࣈࣜࢵࢻ⁐᥋ᐇㅰ㎡ 㦂࡟ࡼࡾᚓࡽࢀࡓ )3' ࡢⓎ⏕≧ἣࢆࡲ࡜ࡵࡓࡶࡢࢆ⾲  ᮏ◊✲ࡢ୍㒊ࡣࠊ᪥ᮏ㕲㗰㐃┕ࠕ࣭ ᖺᗘ㗰ᵓ㐀࡟ࠊ)3' ࡀⓎ⏕ࡋࡓヨ㦂∦ࡢ෗┿ࢆᅗ  ࡟♧ࡍࠋ◊✲࣭ᩍ⫱ຓᡂ஦ᴗࠖࡢ⿵ຓࢆཷࡅࡓࠋࡲࡓࠊ+6$ Υ࡛  ᮏࠊΥ࡛  ᮏࠊΥ࡛  ᮏ࡟ )3' ࡀⓎ⏕ࡋࡣ ᰴ -)( ࢫࢳ࣮ࣝࡼࡾᥦ౪㡬࠸ࡓࠋࡇࡇ࡟῝ࡃឤㅰ⮴ࡓࠋ ࡜Υ࡛ࡣࠊ◚᩿᩿㠃࡛ࡣࡁ⿣ࡀࡲࡗࡍࡄධ

ࡋࡲࡍࠋࡗ࡚࠾ࡾ )3' ࡣⓎ⏕ࡋ࡚࠸࡞࠿ࡗࡓࡀࠊ྾཰࢚ࢿࣝࢠ࣮

ࡀ㠀ᖖ࡟ᑠࡉࡃ⬤ᛶⓗ࡞◚ቯ࡛࠶ࡗࡓࠋཧ⪃ᩥ⊩ ࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡣࠊప ᪥ᮏ㗰ᵓ㐀༠఍㸸ᘓ⠏ᵓ㐀⏝㧗ᙉᗘ 1PP 㗰ᮦ࡛ࡣẕᮦࡼࡾࡶ྾཰࢚ࢿࣝ

ࢠ࣮ࡣపࡃ࢔࣮ࢡ⁐᥋࡜ྠ➼࡛㧗࡛ࡣẕᮦ࡜ྠ➼࡛ࠊ࢔࣮ࢡ⁐᥋ࡼࡾࡶ㧗ࡃ࡞ࡗ࡚࠸ࡿࠋࡋ࠿ࡋ㧗࡛ࡣ )3'

㸦+6$㸧㗰ᮦつ᱁࠾ࡼࡧ⁐᥋᪋ᕤせ㡿㸧ᓮ㔝௚㸸ᘓ⠏ᵓ㐀⏝㧗ᙉᗘ㗰 +6$ ࡬ࡢ࣮ࣞࢨ࢔

ࡀⓎ⏕ࡋ࡚࠸ࡿࡓࡵ࡟ࣁࣈࣜࢵࢻ⁐᥋ࡢ྾཰࢚ࢿࣝࢠ࣮

࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡢ㐺⏝㸪⁐᥋Ꮫ఍඲ᅜ኱఍ᴫせ㸪ࢆホ౯ࡋ࡚࠸ࡿࡢ࡛ࡣ࡞ࡃࠊẕᮦ㒊ࡢ྾཰࢚ࢿࣝࢠ࣮ࢆ➨  㞟㸪SSホ౯ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋ ᓮ㔝௚㸸㧗ᙇຊ㗰 +6$ ࡬ࡢ࣮ࣞࢨ࠾ࡼࡧ࣮ࣞࢨ

 ࡇࡢᵝ࡟ࠊࣁ࢖ࣈࣜࢵࢻ⁐᥋࡛ࡣࣇࣝࢧ࢖ࢬヨ㦂∦࡛࢔࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡢ㐺⏝ࡑࡢ㸯࣮ࣞࢨ⁐᥋ࡶ )3' ࡀⓎ⏕ࡍࡿࡓࡵࠊࢩࣕࣝࣆ࣮⾪ᧁヨ㦂࡟ࡼࡿࡌࢇ

㒊ࡢ◳ࡉヨ㦂࠾ࡼࡧᘬᙇヨ㦂⤖ᯝ㸪᪥ᮏᘓ⠏Ꮫ఍୰ᛶࡢ᥎ᐃࡀ࡛ࡁ࡞࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ

ᅜᨭ㒊◊✲ሗ࿌㞟㸪➨  ᕳ㸪SS ᓮ㔝௚㸸㧗ᙇຊ㗰 +6$ ࡬ࡢ࣮ࣞࢨ࠾ࡼࡧ࣮ࣞࢨ

㸳㸬ࡲ࡜ࡵ

࢔࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡢ㐺⏝ࡑࡢ㸰 ࣮ࣞࢨ࢔ᯈཌ PP ࡢ✺ྜࡏ⁐᥋㒊࡟࠾࠸࡚ࡶࠊ+6$ ࡟ࣁ࢖ࣈࣜࢵࢻ⁐᥋ࢆ㐺⏝ࡍࡿࡇ࡜࡛௨ୗࡢ▱ぢࡀ᫂ࡽ࠿࡜࡞
ࡗࡓࠋ࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋㒊ࡢ◳ࡉヨ㦂࠾ࡼࡧᘬᙇヨ㦂⤖ ࣁ࢖ࣈࣜࢵࢻ⁐᥋ࢆ㐺⏝ࡍࡿࡇ࡜࡟ࡼࡗ࡚⇕ᙳ㡪㒊ࡢᖜࢆ⊃ࡵࡽࢀࠊ⁐᥋㒊ࡢ㌾໬㒊ࡶ⊃ࡃ࡛ࡁࡿࠋ ࣁ࢖ࣈࣜࢵࢻ⁐᥋࡛ࡣ࣮ࣞࢨ⁐᥋࡟ẚ࡭◳໬㒊ࢆ⊃ᯝ㸪᪥ᮏᘓ⠏Ꮫ఍୰ᅜᨭ㒊◊✲ሗ࿌㞟㸪➨  ᕳ㸪
SS 㜿㒊 ᱇భ㸸࣮ࣞࢨ⁐᥋ࡉࢀࡓ +6$ ࡢࡌࢇᛶホ౯ࠊ㏆␥኱Ꮫ༞ᴗㄽᩥࠊ


− 174 −

㸦ඹྠ◊✲ศ㔝㸸᥋ྜタィᏛศ㔝㸧ᅽᘏᚋࡢ෭༷᮲௳ࢆኚ࠼࡚ఙࡧᛶ⬟ࢆኚ໬ࡉࡏࡓ㗰ᮦࡢ⑂ປட⿣ఏ᧛≉ᛶ࡟㛵ࡍࡿ◊✲㛗ᓮ኱Ꮫ ኱Ꮫ㝔 ຾⏣ 㡰୍኱㜰኱Ꮫ ᥋ྜ◊ ሐ ᡂ୍㑻㸯㸬┠ⓗ኱ᆺ㗰ᵓ㐀≀࡟㧗ᙉᗘ㗰ࢆ㐺⏝ࡍࡿ࡜㸪㔜㔞㍍ῶ㸪⁐᥋సᴗࡢຠ⋡໬࡞࡝㸪฼Ⅼࡀከ࠸ࠋࡋ࠿ࡋ㸪୍⯡࡟㸪㗰ᮦࡣ㧗ᙇຊ࡟࡞ࡿ࡯࡝㸪ఙࡧᛶ⬟ࡣῶᑡࡍࡿഴྥ࡟࠶ࡿࠋ᫖ᖺᗘ㸪ᙉᗘࡢ␗࡞ࡿᕷ㈍ࡢ㗰ᮦࢆ⏝࠸࡚㸪ఙࡧᛶ⬟࡟ὀ┠ࡋ࡚⑂ປட⿣ఏ᧛≉ᛶࢆᢕᥱࡋࡓࠋࡑࡢ⤖ᯝ㸪ᙉᗘࡀ㧗࠸࡯࡝ఙࡧᛶ⬟ࡣᑠࡉࡃ㸪ࡇࡢࡼ࠺࡞㗰ᮦࡣ㸪⑂ປட⿣ఏ᧛≉ᛶࡀపୗࡍࡿࡇ࡜ࢆ☜ㄆ࡛ࡁࡓࠋࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ࡲࡎ㸪ྠ୍໬Ꮫᡂศࡢ㗰ᮦࢆᅽᘏࡋ
࡚㸪෭༷᮲௳ࢆኚ໬ࡉࡏࡿࡇ࡜࡟ࡼࡾ㸪⣙780MPa⣭ࡢᙉᗘࢆ᭷ࡋ㸪࠿ࡘఙࡧᛶ⬟ࡀ␗࡞ࡿ㗰ᮦࢆ〇సࡋࡓࠋ࡞࠾㸪〇㐀ࡋࡓࡢࡣ㸪࡯ࡰྠ⛬ᗘࡢᙉᗘࢆ᭷ࡋ㸪ఙࡧࡀ␗࡞ࡿ㗰ᮦࢆ3✀㢮㸪ࡲࡓⱝᖸᙉᗘࡀపࡃ㸪ఙࡧࡣⰋ࠸㗰ᮦࢆ1✀㢮࡛࠶ࡿࠋࡇࢀࡽࡢ㗰ᮦࢆ⏝࠸࡚㸪ྠࡌⲴ㔜⠊ᅖࢆ㈇Ⲵࡋࡓሙྜ࡜㸪ࡑࢀࡒࢀࡢ㝆అᛂຊ࡟ᑐࡍ
ࡿ᭱኱㈇ⲴⲴ㔜ࡢẚࢆྠࡌ࡟ࡋࡓሙྜ࡟ࡘ࠸࡚㸪⑂ປட⿣ఏ᧛ヨ㦂ࢆ⾜ࡗࡓࠋࡉࡽ࡟㸪ࡇࢀࡽࡢ㗰ᮦࡢṧ㒊࠿ࡽ୸Წヨ㦂∦ࢆ〇సࡋ࡚㸪⧞㏉ࡋᅽ⦰ᘬᙇࡾヨ㦂ࢆ⾜࠸㸪⧞㏉ࡋ㈇Ⲵᚋࡢ◚᩿ఙࡧࢆㄪᰝࡋࡓࠋ
㸰㸬◊✲᪉ἲ ࡲࡎ㸪〇సࡋࡓ㗰ᮦ 4 ✀㢮ࢆ⏝࠸࡚⑂ປட⿣ఏ᧛ヨ㦂ࢆᐇ᪋ࡋࡓࠋヨ㦂ࡣ㸪ྛ㗰✀ྠࡌᛂຊ⠊ᅖࢆ㍕Ⲵࡍࡿሙྜ࡜㸪ࡑࢀࡒࢀࡢ㝆అᛂຊ࡟ᑐࡍࡿ㍕Ⲵᛂຊ⠊ᅖࡢẚࢆ୍ᐃ࡜ࡋ
ࡓሙྜ࡟ࡘ࠸࡚⾜ࡗࡓࠋFig. 1 ࡟ヨ㦂∦ᙧ≧ࢆ♧ࡍࠋ࡞࠾㸪ఏ᧛ヨ㦂ࡣ㸪ᛂຊẚ 0.1㸪㍕Ⲵ㏿ᗘ 10 ਼࡛⾜ࡗࡓࠋ ࡲࡓ㸪ྛ㗰㗰ᮦ㸦ᯈཌ 12 ੈ㸧ࡢṧ㒊ࢆ౑⏝ࡋ࡚㸪⑂ປட⿣ඛ➃ࡢᅽ⦰ረᛶኚᙧ࡜ᘬᙇࡾረᛶኚᙧࡢ⧞㏉ࡋࢆᶍ

XQLW PP

ᨃࡋࡓษḞࡁ௜ࡁ୸Წヨ㦂∦ࢆ⏝࠸࡚㸪ᅽ⦰㸫ᘬᙇࡾረ
Fig. 1 ⑂ປட⿣ఏ᧛ヨ㦂∦ᙧ≧ᛶኚᙧ௜୚ヨ㦂ࢆᐇ᪋ࡋࡓࠋࡑࡢᚋ㸪㟼ⓗ࡟ᘬᙇࡾ◚᩿ࡉࡏ࡚ఙࡧኚᙧࡢኚ໬࡟ࡘ࠸ㄪᰝࡋࡓࠋFig. 2 ࡟㸪ᅽᘏ

D=3.34᪉ྥࡢヨ㦂∦ᙧ≧ࢆ♧ࡍࠋ࡞࠾㸪⧞㏉ࡋረᛶኚᙧ௜୚ヨ

r=0.4

㦂ࡣ㸪ᛂຊẚ 0.1㸪㍕Ⲵ㏿ᗘ 0.002 ਼࡛⾜ࡗࡓࠋ㍕Ⲵ㏿ᗘ

XQLWPP

ࡣ㸪ረᛶኚᙧࡢ⧞㏉ࡋ࡟ࡼࡿⓎ⇕ࡢᙳ㡪࡟ࡼࡗ࡚ᶵᲔⓗFig. 2 ᅽ⦰㸫ᘬᙇࡾ⧞㏉ࡋረᛶኚᙧ௜୚ヨ㦂∦ᙧ≧ᛶ㉁ࡀኚ໬ࡍࡿࡇ࡜ࢆ㑊ࡅࡿࡓࡵ࡛࠶ࡿࠋヨ㦂⤖ᯝࡣ㸪ᅽ⦰ረᛶࡦࡎࡳࢆᙎᛶࡦࡎࡳ㸪ረᛶࡦࡎࡳࢆຍ⟬ࡋ࡚⟬ฟࡋࡓࠋࡲࡓ㸪ᘬᙇࡾረᛶࡦࡎࡳࡣ㸪㟼ⓗᘬᙇࡾ

Table1 ໬Ꮫᡂศ◚᩿ᚋ㸪◚᩿⤠ࡾࢆィ ࡋ㸪య✚୍ᐃ๎࡟ᇶ࡙࠸࡚

໬Ꮫᡂศ  㸦mass%㸧

༢఩㛗ࡉᙜࡓࡾࡢ᥮⟬◚᩿ఙࡧ࡜ࡋ࡚⟬ฟࡋ㸪ᅗ♧ࡋࡓࠋ Table 1 ࡟㸪ᅽᘏࡋࡓࢫࣛࣈᮦࡢ໬Ꮫᡂศࢆ♧ࡍࠋ

C

Si

Mn

P

S

Al

N

0.20

1.44

1.67

0.013

0.002

0.026

0.003

− 175 −

ࡲࡓ㸪ᶵᲔⓗᛶ㉁ࢆ Table2 ࡟♧ࡍࠋ

Table2 ᶵᲔⓗᛶ㉁グྕ

0.2㸣⪏ຊ

ᘬᙇࡾᙉࡉ

◚᩿ఙࡧ

⤠ࡾ

Ț㔞

Υ

MPa

MPa

㸣

㸣

㸣

෭༷೵Ṇ

㸱㸬⤖ᯝ

ᗘ

 Fig. 3 ࡟㸪⑂ປட⿣ఏ᧛ヨ㦂⤖ᯝ

EFP1

360

602.40853.47

31.02

61.27

0.42

ࢆ♧ࡍࠋ

EFP2

422

602.23802.15

23.84

55.97

0.23

 (a)ࡣ㸪ᑐ㝆అᛂຊ࡟ᑐࡍࡿ㍕Ⲵ

EFP3

448

577.70740.02

24.12

62.33

0.00

ᛂຊ⠊ᅖࡢẚࢆ୍ᐃ࡜ࡋࡓሙྜ㸪(b)ࡣ㸪㍕Ⲵᛂຊ⠊ᅖࢆ୍ᐃ࡜ࡋࡓሙྜ࡛࠶ࡿࠋ
 

80

Crack Length a (mm)Crack Length a (mm)80ఙࡧ  Ⲵ㔜⠊ᅖ‫ە‬EFP1㸦19.6㸣)㸦15.64-1.564㹩N㸧‫ە‬EFP2㸦15.5㸣)㸦15.64-1.564㹩N㸧‫ە‬EFP3㸦15.2㸣)㸦15.00-1.500㹩N㸧

70
60
50
40

70
60

ఙࡧ  Ⲵ㔜⠊ᅖ‫ە‬EFP1㸦19.6㸣)㸦15-1.5㹩N㸧‫ە‬EFP2㸦15.5㸣)㸦15-1.5㹩N㸧‫ە‬EFP3㸦15,2㸣)㸦15-1.5㹩N㸧

50
40
30

30
1

2
4
6 8 10
Number of cycles N (cycles)

510(10 )

5

5

210

5

410

5

710

10

6

Number of cycles N (cycles)(a) ᑐ㝆అᛂຊ࡟ᑐࡍࡿ㍕Ⲵᛂຊ⠊ᅖࡢẚࢆ୍ᐃ࡜ࡋࡓሙྜ

(b) ㍕Ⲵᛂຊ⠊ᅖࢆ୍ᐃ࡜ࡋࡓሙྜ

Fig. 3 ⑂ປட⿣ఏ᧛ヨ㦂⤖ᯝ

Symbols

7UDQVIRUPHG(ORQJDWLRQԥ/ PPPP

1

EL

EFP1:㸦31.0㸣㸧‫ە‬
EFP2:㸦23.8㸣㸧‫ە‬
EFP3:㸦24.1㸣㸧‫ە‬

0.5

0
0

0.1

0.2

&RPSUHVVLYH6WUDLQ  İF

Fig. 4 ᅽ⦰ࡦࡎࡳ࡜᥮⟬◚᩿ఙࡧࡢ㛵ಀ࡬ࡢ⧞㏉ࡋࡢᙳ㡪㸲㸬⤖ㄽ ྠ⛬ᗘࡢᙉᗘࢆ᭷ࡋ࡞ࡀࡽఙࡧࡀ␗࡞ࡿ㗰ᮦࢆ〇సࡋ࡚㸪⑂ປட⿣ఏ᧛≉ᛶࢆㄪᰝࡋࡓࠋࡲࡓ㸪ࡇࢀࡽࡢ㗰ᮦࡢ⧞㏉ࡋᅽ⦰㸫ᘬᙇࡾረᛶኚᙧࢆཷࡅࡓᚋࡢ◚᩿ఙࡧᛶ⬟ࢆồࡵࡓࠋࡇࡢ⤖ᯝ㸪ᙉᗘࡀ࡯ࡰྠࡌ࡛࠶ࡿ
ሙྜ㸪ఙࡧᛶ⬟࡟ඃࢀࡓ㗰ᮦࡢ࡯࠺ࡀ⑂ປட⿣ఏ᧛ᑑ࿨ࡣ㛗ࡃ࡞ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋࡋ࠿ࡋ㸪⧞㏉ࡋᅽ⦰ᘬᙇࡾヨ㦂࡟ࡼࡿ◚᩿ఙࡧ࡟ࡘ࠸࡚ࡣ㸪ヨ㦂ᮏᩘࡀᑡ࡞ࡃ㸪ࡉࡽ࡟᳨ウࡍࡿవᆅࡀ࠶ࡿࠋ

− 176 −

㸳㸬ཧ⪃ᩥ⊩ ኱▼㸪຾⏣㸪࿴⏣㸸ረᛶኚᙧࡢ⧞㏉ࡋࢆ⪃៖ࡋࡓᮦᩱ㝈⏺ࢆ⏝࠸ࡓ⑂ປࡁ⿣ఏ᧛ࢩ࣑࣮ࣗࣞࢩࣙࣥ㸪᪥ᮏ⯪⯧ᾏὒᕤᏛ఍ㅮ₇ㄽᩥ㞟㸪➨  ྕ㸪㸪SS ᐑᓮ㸪຾⏣㸸 ⣭㧗ᙇຊ㗰ᯈࡢ⑂ປட⿣ఏ᧛࡜᪂ࡋ࠸ఏ᧛ᛶ⬟ホ౯࡟ࡘ࠸࡚㸪᪥ᮏ⯪⯧ᾏὒᕤᏛ఍ㅮ
₇ㄽᩥ㞟㸪➨  ྕ㸪㸪SS ᐑᓮ㸪຾⏣㸸ᙉᗘ࡜ఙࡧࡀ␗࡞ࡿ㗰ᮦࡢ⑂ປட⿣ఏ᧛≉ᛶ࡜ࡑࡢホ౯㸪⁐᥋Ꮫ఍஑ᕞᨭ㒊ㅮ₇ㄽᩥ㞟㸪➨  ྕ㸪㸪SS

㸦ඹྠ◊✲ศ㔝㸸᥋ྜタィᏛศ㔝㸧− 177 −

⧞ࡾ㏉ࡋ㍕Ⲵࢆ⤒㦂ࡋࡓ㗰ᵓ㐀≀ࡢṧᏑ⪏ຊホ౯ࡢࡓࡵࡢᇶ♏ⓗ᳨ウ⟃Ἴ኱Ꮫ ࢩࢫࢸ࣒᝟ሗ⣔ ᪂Ꮿຬ୍ᮾ໭኱Ꮫ ⅏ᐖ⛉Ꮫᅜ㝿◊✲ᡤ ᑎ⏣㈼஧㑻ᮾ໭኱Ꮫ ᕤᏛ◊✲⛉ ␒ሙ Ⰻᖹ኱㜰኱Ꮫ ᥋ྜ⛉Ꮫ◊✲ᡤ ሐ ᡂ୍㑻㸯㸬⥴ゝᆅ㟈᣺ື࡟ࡼࡾ⧞ࡾ㏉ࡋⲴ㔜ࢆ㗰ᵓ㐀≀ࡀ⤒㦂ࡍࡿ࡜㔠ᒓᮦᩱෆ㒊࡟Ⓨ⏕ࡍࡿᚤᑠ࣎࢖ࢻ࡟ࡼࡗ࡚
⑂ປᑑ࿨ࡀ▷ࡃ࡞ࡿࡔࡅ࡛࡞ࡃ㸪ᘬᙇᙉࡉࡸ◚᩿ఙࡧ࡞࡝ࡢ㟼ⓗᙉᗘࡶపୗࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ㸬ࡑࡢࡓࡵ㸪⇃ᮏᆅ㟈ࡢࡼ࠺࡟ẚ㍑ⓗ኱ࡁ࠸ᆅ㟈ࡀ」ᩘᅇⓎ⏕ࡋࡓሙྜ㸪㗰ᵓ㐀≀ࡢᏳ඲ᛶ☜ಖࡢࡓࡵ࡟
ࡣ⑂ປᦆയᚋࡢ㟼ⓗᙉᗘࢆṇ☜࡟ホ౯ࡍࡿᚲせࡀ࠶ࡿ㸬ࡋ࠿ࡋ㸪㔠ᒓᮦᩱ࡟࠾ࡅࡿ༢ㄪⲴ㔜࡟ࡼࡿᘏᛶ
◚ቯࡸ⧞ࡾ㏉ࡋⲴ㔜࡟ࡼࡿ⑂ປᦆയࡣ◚ቯࡢ࣓࢝ࢽࢬ࣒⮬యࡀ」㞧࡞ࡓࡵ࡟㸪᪤ ࡢᮦᩱࣔࢹࣝ࡟㛵ࡍࡿ◊✲ࡢከࡃࡣࡑࢀࡒࢀ኱ูࡋࡓ࠺࠼࡛⌮ㄽᵓ⠏ࡀ࡞ࡉࢀ࡚࠸ࡿ㸬ࡑࡢࡓࡵ㸪⧞ࡾ㏉ࡋⲴ㔜࡟ࡼࡿ⑂ປ
ᦆയࢆ⤒㦂ࡋࡓ㔠ᒓᮦᩱࡢ㟼ⓗᙉᗘࡢపୗࢆண ࡍࡿࡇ࡜ࡣᅔ㞴࡜࡞ࡗ࡚࠸ࡿ㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ Lemaitre ࡢᦆയࣔࢹࣝ 1)࡟ᘏᛶࡁ⿣ࡢ㐍ᒎ࡟క࠺ᛂຊࡢゎᨺ㐣⛬ࢆ⾲⌧ࡍࡿ᪂ࡓ࡞ᦆയኚᩘࢆᑟධࡍࡿࡇ࡜࡛㸪⑂ປᦆയ࡟ࡼࡿ㟼ⓗᙉᗘపୗࢆ⾲⌧ྍ⬟࡜ࡋࡓᮦᩱᵓᡂ๎ࢆᥦ᱌ࡋࡓ㸬ࡲࡓ㸪ᆅ㟈᫬ࡢ⧞ࡾ㏉ࡋⲴ㔜࡟ࡼࡿ㗰ᵓ㐀≀ࡢ኱つᶍ࡞ኚᙧࢆṇ☜࡟ண ࡍࡿࡓࡵ࡟㸪ᙎረᛶࣔࢹࣝ࡟
ࡣ᭷㝈ኚᙧ⌮ㄽ࡟ᇶ࡙ࡃᐃᘧ໬ࢆ᥇⏝ࡋࡓ㸬ࡲࡓ㸪◁᫬ィᆺ୸Წヨ㦂∦࡟ࠕ༢ㄪᘬᙇⲴ㔜ࠖ
㸪
ࠕ⧞ࡾ㏉ࡋ
Ⲵ㔜ࠖ
㸪
ࠕ⧞ࡾ㏉ࡋⲴ㔜ᚋ࡟༢ㄪⲴ㔜ࠖࢆຍ࠼ࡓ 3 ࢣ࣮ࢫࡢᐇ㦂࠿ࡽࡑࢀࡒࢀࡢᛂຊ̺ࡦࡎࡳ⥺ᅗࢆྲྀᚓࡍࡿ࡜࡜ࡶ࡟㸪ࢹࢪࢱࣝ⏬ീ┦㛵ἲࢆ⏝࠸࡚ヨ㦂∦⾲㠃㒊ࡢࡦࡎࡳศᕸࡢ ᐃࡶేࡏ࡚ᐇ᪋ࡋࡓ㸬᭱ᚋ࡟㸪ᚓࡽࢀࡓᐇ㦂⤖ᯝ࡜ᩘ್ゎᯒ࡜ࡢẚ㍑ࢆ㏻ࡋ࡚㸪ᥦ᱌ࡋࡓ᭷㝈ኚᙧ࣭ᙎረᛶᦆയࣔࢹࣝࡀ༢ㄪⲴ㔜࡟ࡼࡿ㟼ⓗᙉᗘ࣭⧞ࡾ㏉ࡋⲴ㔜࡟ࡼࡿ⑂ປᦆയ࣭⧞ࡾ㏉ࡋⲴ㔜ᚋࡢᘬᙇᙉᗘࡢపୗࢆ⾲⌧ྍ⬟࡞ࡇ࡜ࢆ᳨ドࡋࡓ㸬㸰㸬◁ᆺ୸Წヨ㦂∦࡟ࡼࡿᐇ㦂⁐᥋ᵓ㐀⏝ᅽᘏ㗰ᮦ࡜ࡋ࡚ᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿ SM490A ࡟ᑐࡋ࡚㸪༢ㄪᘬᙇヨ㦂࠾ࡼࡧረᛶࡦࡎࡳ
⠊ᅖ୍ᐃࡢ⧞ࡾ㏉ࡋⲴ㔜ୗ࡛ࡢ⑂ປヨ㦂ࢆ⾜ࡗࡓ. ヨ㦂∦ࡢᙧ≧ࡣ㸪ᅗ 1(a)࡟♧ࡍ᭱ᑠ᩿㠃㒊ࡢ┤ᚄࡀ
8 mm ࡢ◁᫬ィᆺ୸Წ࡛࠶ࡿ㸬࣮ࣞࢨ࣮ཌࡳィ࡟ࡼࡾィ ࡋࡓ᭱ᑠ᩿㠃㒊ࡢ┤ᚄ࠾ࡼࡧⲴ㔜࠿ࡽ㸪ཧ⪃ᩥ⊩ 2)࡟ᇶ࡙ࡁ㍈᪉ྥࡢ┿ᛂຊ࣭඲ࡦࡎࡳ࣭ረᛶࡦࡎࡳࢆ⟬ฟࡋࡓ㸬ࡲࡓ㸪⑂ປヨ㦂࡛ࡣ⧞ࡾ㏉ࡋረᛶࡦࡎࡳ⠊ᅖࡀ ǻİp=0.126, 0.183 ࡜࡞ࡿࡼ࠺࡟Ⲵ㔜ࡢไᚚࢆ⾜ࡗࡓ㸬ᮏ◊✲࡛ࡣ㸪㟼ⓗᙉᗘ࣭⑂ປᙉᗘ࣭
⑂ປᦆയᚋࡢ㟼ⓗᙉᗘࢆホ౯ࡍࡿࡓࡵ࡟㸪ḟࡢ 3 ࢣ࣮ࢫࡢᐇ㦂⾜ࡗࡓ㸬Case-1: ༢ㄪᘬᙇヨ㦂Case-2: ረᛶࡦࡎࡳ⠊ᅖ୍ᐃ୧᣺ࡾヨ㦂㸦ǻİp=0.126, 0.183㸧
Case-3: ረᛶࡦࡎࡳ⠊ᅖ୍ᐃ୧᣺ࡾヨ㦂ࢆ 5 ᅇ⧞ࡾ㏉ࡋࡓᚋ࡟༢ㄪᘬᙇヨ㦂㸱㸬ᩘ್ゎᯒࡢᴫせᩘ್ゎᯒࣔࢹࣝࡢᙧ≧ࡣᅗ 1(b)࡟♧ࡍࡼ࠺࡟ヨ㦂ࡢࡃࡧࢀ㒊ࡢ 8 ศࡢ 1 ࢆᑐ㇟࡜ࡋ࡚᭷㝈せ⣲ࣔࢹࣝࢆసᡂࡋ㸪ᑐ⛠᮲௳ࢆ⪃៖ࡋࡓ࠺࠼࡛ᐇ㦂࡜ྠᵝ࡜࡞ࡿࡼ࠺࡟ᙉไኚ఩ࢆୖ➃㠃࡟㈇Ⲵࡋࡓ㸬ࡲࡎ㸪ᥦ᱌ࡋࡓ᭷㝈ኚᙧ࣭ᙎረᛶᦆയࣔࢹࣝࡢᮦᩱࣃ࣓࣮ࣛࢱࢆྠᐃࡍࡿࡓࡵ࡟㸪Case-1 ࡢ༢ㄪᘬᙇヨ㦂࠾ࡼࡧCase-3 ࡢ⑂ປᦆയᚋࡢ༢ㄪᘬᙇヨ㦂ࢆᶍᨃࡋࡓᩘ್ゎᯒࢆᐇ᪋ࡋࡓ㸬ᐇ㦂⤖ᯝ࡜ేࡏ࡚㸪ᩘ್ゎᯒࡢ⤖ᯝ࠿ࡽᚓࡽࢀࡓ┿ᛂຊ-඲ࡦࡎࡳ㛵ಀࢆᅗ 2 ࡟♧ࡍ㸬ࡇࡢᅗࡼࡾᩘ್ゎᯒࡢᛂຊ-ࡦࡎࡳ㛵ಀࡣᐇ㦂⤖ᯝ࡜ࡼࡃ୍⮴ࡋ࡚࠾ࡾ㸪⑂ປᦆയᚋࡢ㟼ⓗᙉᗘࢆᐃ㔞ⓗ࡟ண ࡛ࡁ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡲࡓ㸪᪂ࡓ࡞ᦆ− 178 −

യኚᩘࢆᑟධࡋࡓࡇ࡜࡛㸪ᛂຊࡀᘬᙇᙉࡉ࡟㐩ࡋࡓᚋࡢᛂຊࡢ㌾໬㡿ᇦࡲ࡛෌⌧ྍ⬟࡜࡞ࡗࡓࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ㸬ᅗ-1 ◁᫬ィᆺ୸Წヨ㦂∦ᅗ-2 ྠᐃࡋࡓᮦᩱࣃ࣓࣮ࣛࢱ࡟ࡼࡿᛂຊ-ࡦࡎࡳ⥺ᅗḟ࡟㸪ᛂຊࡀᘬᙇᙉࡉ࡟㐩ࡋࡓ┤ᚋࡢᩘ್ゎᯒ⤖ᯝ࡜ᐇ㦂ࢆ DIC ࡛ ᐃࡋࡓ⤖ᯝ࡟ࡘ࠸࡚㸪ᘬᙇ᪉ྥࡢ୺ࡦࡎࡳศᕸࢆᅗ 3㸪࠾ࡼࡧእᙧࡢẚ㍑ࢆᅗ 4 ࡟ࡑࢀࡒࢀ♧ࡍ㸬Case-1 ࡢሙྜ࡟ࡣ㸪ᅗ 3(a)࠾ࡼࡧ
4(a)࠿ࡽᩘ್ゎᯒࡢ୺ࡦࡎࡳศᕸ࠾ࡼࡧᙧ≧ࡣ࡝ࡕࡽࡶᐇ㦂⤖ᯝ࡟㏆࠸್ࢆ♧ࡋ࡚࠾ࡾ㸪ᐃᛶⓗ࡟୍⮴ࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬୍᪉㸪Case-3 ࡢሙྜ࡟ࡣ㸪ᅗ 3(b)ࡢ◚⥺㒊ࢆẚ㍑ࡍࡿ࡜୺ࡦࡎࡳࡢศᕸ࡟㐪࠸ࡀࡳࡽࢀ㸪᭱኱್࡜࡞ࡿ㡿ᇦࡀᩘ್ゎᯒࡢ᪉ࡀ⊃࠸ࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ㸬ࡇࡢཎᅉ࡜ࡋ࡚ࡣ㸪▮༳࡛♧ࡋࡓ⟠ᡤ࡛ᐇ㦂⤖ᯝࡢ୺ࡦࡎࡳࡀ኱ࡁࡃ࡞ࡗ࡚࠸ࡿࡇ࡜࠿ࡽ㸪ヨ㦂∦ࢆタ⨨ࡋࡓ㝿࡟ഹ࠿࡞ഴࡁࡀ⏕ࡌ࡚࠸ࡓࡇ࡜ࡀண ࡉࢀࡿ㸬ࡇࢀ࡟ࡼࡾ㸪ᅽ⦰ࡢ㐣⛬࡟࠾࠸࡚ࡏࢇ᩿ຊࡀⓎ⏕ࡋࡓࡇ࡜࡛㸪୺ࡦࡎࡳศᕸ࡟
㐪࠸ࡀ⏕ࡌࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬ࡓࡔࡋ㸪ᅗ 4(b)࡛♧ࡍࡼ࠺࡟ヨ㦂∦ࡢእᙧ࡟኱ࡁ࡞㐪࠸ࡣࡳࡽࢀࡎ㸪ᐃᛶⓗ࡟ࡣࡼࡃ୍⮴ࡋ࡚࠸ࡿ㸬

ᅗ-3 ᘬᙇ᪉ྥࡢ୺ࡦࡎࡳศᕸࡢẚ㍑

ᅗ-4 ᘬᙇ᪉ྥࡢ୺ࡦࡎࡳศᕸࡢẚ㍑

᭱ᚋ࡟㸪ᥦ᱌ࣔࢹࣝࡀ㟼ⓗᙉᗘ࡟ຍ࠼࡚⑂ປᑑ࿨ࢆண ྍ⬟࡞ࡇ࡜ࢆ᳨ドࡍࡿࡓࡵ࡟㸪ྠᐃࡋࡓᮦᩱ
ࣃ࣓࣮ࣛࢱࢆ⏝࠸࡚⧞ࡾ㏉ࡋረᛶࡦࡎࡳ⠊ᅖ ǻİp=0.126, 0.183 ࡟ࡘ࠸࡚ Case-2 ࡢ⑂ປヨ㦂ࢆᶍᨃࡋࡓ

− 179 −

ᩘ್ゎᯒࢆᐇ᪋ࡋࡓ㸬ゎᯒࡢ⤖ᯝᚓࡽࢀࡓᛂຊ-ࡦࡎࡳ㛵ಀࢆࡑࢀࡒࢀᅗ 5 ࡟♧ࡍ㸬ࡇࡢᅗࡼࡾ㸪ຍᕤ◳໬᫬ࡢᩘ್ゎᯒࡢᛂຊࡀᐇ㦂⤖ᯝࡼࡾࡶⱝᖸపࡃ࡞ࡗ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ᩘ್ゎᯒࡢ◚᩿ࡲ࡛ࡢ⧞ࡾ㏉ࡋᅇᩘࡣ N F=8, 14 ࡟ᑐࡋ࡚㸪ᐇ㦂⤖ᯝࡣ N F=7, 12 ࡛࠶ࡿࡇ࡜࠿ࡽ㸪ᥦ᱌ࡋࡓ᭷㝈ኚᙧ࣭ᙎረᛶᦆയࣔ
ࢹࣝࡣ⑂ປᑑ࿨ࢆண ࡍࡿ࡟༑ศ࡞෌⌧ᛶ⬟ࢆ᭷ࡋ࡚࠸ࡿ࡜ゝ࠼ࡿ㸬࡞࠾㸪ཧ↷್࡜ࡋ࡚ Manson-Coffin๎ࢆ⏝࠸࡚ᅇᖐⓗ࡟◚᩿ᅇᩘࢆ᥎ᐃࡍࡿ࡜㸪◚᩿ᅇᩘࡣࡑࢀࡒࢀ N F=7.2, 13.8 ࡛࠶ࡿ㸬

ᅗ-5 ⧞ࡾ㏉ࡋⲴ㔜᫬ࡢᛂຊ-ࡦࡎࡳ⥺ᅗ㸲㸬ࡲ࡜ࡵᮏ◊✲࡛ࡣ㸪ᘏᛶࡁ⿣ࡢ㐍ᒎ࡟క࠺ᛂຊࡢゎᨺ㐣⛬ࢆ⾲⌧ࡋࡓᦆയኚᩘࢆᑟධࡋࡓ᭷㝈ኚᙧ࣭ᙎረᛶ
ᦆയࣔࢹࣝࢆᥦ᱌ࡋࡓ㸬ࡲࡓ㸪◁᫬ィᆺ୸Წヨ㦂∦࡟ࠕ༢ㄪᘬᙇⲴ㔜ࠖ㸪ࠕ⧞ࡾ㏉ࡋⲴ㔜ࠖ㸪ࠕ⧞ࡾ㏉ࡋⲴ
㔜ᚋ࡟༢ㄪⲴ㔜ࠖࢆຍ࠼ࡓ 3 ࢣ࣮ࢫࡢᐇ㦂ࢆ⾜࠸㸪ᩘ್ゎᯒ࡜ࡢẚ㍑࠿ࡽᥦ᱌ࣔࢹࣝࡢጇᙜᛶࢆ᳨ドࡋࡓ㸬ࡇࢀࡽࡢ᳨ド࡟ࡼࡾ㸪ᥦ᱌ࡋࡓ᭷㝈ኚᙧ࣭ᙎረᛶᦆയࣔࢹࣝࡣᆅ㟈Ⲵ㔜᫬࡟࠾ࡅࡿ༢ㄪ㍕Ⲵ᫬ࡢ㟼ⓗᙉᗘ㸪࠾ࡼࡧ⧞ࡾ㏉ࡋ㍕Ⲵ࡟ࡼࡿ⑂ປᑑ࿨ࢆホ౯࡛ࡁࡿࡔࡅ࡛࡞ࡃ㸪⑂ປᦆയ࡟ࡼࡿ㟼ⓗᙉᗘࡢపୗ
ࢆ෌⌧ྍ⬟࡞ࡇ࡜ࢆ♧ࡋࡓ㸬ཧ⪃ᩥ⊩1) Lemaitre, J.: A continuous damage mechanics model for ductile fracture, J. Eng. Mater. Technol., Vol.99,
pp.2-15, 1977.
2) ୰㎸ᛅ⏨㸪ᮤ೺: ⧞㏉ࡋຊࢆཷࡅࡿ SM490 㗰ࡢ⑂ປ≉ᛶ࡟㛵ࡍࡿ◊✲㸪᪥ᮏᘓ⠏Ꮫ఍ᵓ㐀⣔ㄽᩥ㞟㸪
Vol.469, pp.127-136, 1995.

㸦ඹྠ◊✲ศ㔝㸸᥋ྜタィᏛศ㔝㸧− 180 −

㗰ᗋ∧ࢹࢵ࢟ࣉ࣮ࣞࢺ࣭U ࣜࣈ࣭ᶓࣜࣈ஺ᕪ㒊ࡢ⡆᫆࡞⑂ປᙉᗘྥୖᕤἲ
ி㒔኱Ꮫ኱Ꮫ㝔 ᯇᮏ ⌮బ㸪㛵す኱Ꮫ ▼ᕝ ᩄஅ㸪኱㜰኱Ꮫ ሐᡂ୍㑻㸯㸬ࡣࡌࡵ࡟
㏆ᖺ㸪㔜஺㏻㊰⥺࡟఩⨨ࡍࡿ㗰ᗋ∧ᶫ࡟࠾࠸࡚㸪ࢹࢵ࢟ࣉ࣮ࣞ
ࢺ࣭U ࣜࣈ࣭ᶓࣜࣈ஺ᕪ㒊ࡢ⁐᥋࣮ࣝࢺ࠿ࡽⓎ⏕ࡋ㸪ࢹࢵ࢟ࣉࣞ
࣮ࢺ࡟㐍ᒎࡍࡿ⑂ປࡁ⿣(௨ୗ㸪ࢹࢵ࢟ࡁ⿣)ࡀሗ࿌ࡉࢀ࡚࠸ࡿ 1)㸬
ࡇࢀࡲ࡛㸪ࡁ⿣ࡢⓎ⏕ࡀሗ࿌ࡉࢀ࡚࠸ࡿ஺ᕪ㒊࡛ࡣ㸪ࢫ࢝ࣛࢵࣉࡀタࡅࡽࢀ࡚࠸ࡿ㸬୍᪉㸪2002 ᖺ࡟ࡣ㸪ࢫ࢝ࣛࢵࣉࡢࡲࢃࡋ⁐᥋࠿ࡽࡢࡁ⿣ࡢⓎ⏕ࡀᠱᛕࡉࢀ㸪஺ᕪ㒊ࡢࢫ࢝ࣛࢵࣉࢆ┬␎ࡍࡿᵓ㐀ࡀᶆ‽࡜࡞ࡗࡓ 2)㸬ࡋ࠿ࡋ㸪ᩥ⊩ 3)࡛ࡣ㸪ࢫ࢝ࣛࢵࣉࢆ┬␎ࡍᅗ 1 ヨ㦂యࡿᵓ㐀࡛ࡣ㸪ࢹࢵ࢟ࡁ⿣ࡢ⑂ປᑑ࿨ࡀ㸪ᚑ᮶ࡢᵓ㐀㸦ࢫ࢝ࣛࢵࣉ
࠶ࡾ㸧࡜ẚ㍑ࡋ࡚㸪▷ࡃ࡞ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟ࡉࢀ࡚࠸ࡿ㸬ࡋࡓࡀࡗ࡚㸪௒ᚋ㸪ࢫ࢝ࣛࢵࣉࢆ┬␎ࡋࡓ஺ᕪ㒊࠿ࡽࢹࢵ࢟ࡁ⿣ࡢⓎ⏕ࡀண᝿ࡉࢀࡿ㸬ᮏ◊✲࡛ࡣ㸪ࢫ࢝ࣛࢵࣉࢆ┬␎ࡋࡓ஺ᕪ㒊ࢆ㉳Ⅼ࡜ࡋࡓࢹࢵ࢟ࡁ⿣࡟ᑐࡍࡿ⡆᫆࡞⑂ປᙉᗘྥୖᕤἲࢆᥦ᱌ࡋ㸪ࡑࡢຠᯝࢆᯈ᭤ࡆ⑂ປヨ㦂࡟ࡼࡗ࡚᫂ࡽ࠿࡟ࡍࡿ㸬ᅗ 2 ẕᮦᡴᧁࣆ࣮ࢽࣥࢢ࡟ࡼࡗ࡚
ᑟධࡉࢀࡿᅽ⦰ᛂຊ

㸰㸬⑂ປヨ㦂ࡢᴫせ㸰㸬㸯 ヨ㦂యࢫ࢝ࣛࢵࣉࢆ┬␎ࡋࡓࢹࢵ࢟ࣉ࣮ࣞࢺ࡜ U ࣜࣈ࡜ᶓࣜࣈࡢ஺ᕪ㒊ࢆᶍᨃࡋࡓヨ㦂య(SM490Y ᮦ)ࢆᅗ 1 ࡟♧ࡍ㸬஺ᕪ㒊࡛ࡣ㸪ᶓ᱆ࡢゅ㒊ࢆࢥ࣮ࢼ࣮࢝ࢵࢺࡋ㸪ᇙࡵᡠࡋ⁐᥋ࡉࢀ࡚࠸ࡿ㸬㗰ᶫࡢ⁐᥋㒊ࡢ⑂ປᑐ⟇ᕤἲ࡜ࡋ࡚㸪⁐᥋Ṇ➃ࡲࡓࡣࡑࡢ㏆ഐࢆᡴᧁࡋ㸪⁐᥋Ṇ➃࡟ᅽ⦰ᛂຊࢆ௜ຍࡍࡿࡇ
࡜࡛㸪⑂ປᙉᗘࢆྥୖࡉࡏࡿ㸪ࣆ࣮ࢽࣥࢢฎ⌮ᕤἲࡀ࠶ࡿ㸬ࡇࡢᕤἲࡢ࠺ࡕ㸪ẕᮦᡴᧁࣆ࣮ࢽࣥࢢฎ⌮࡛ࡣ㸪ᡴᧁ㒊ࡢ࿘㎶࡜ࡑࡢ⿬㠃࡟ᅽ⦰ᛂຊࡀ௜ຍࡉࢀࡿ(ᅗ 2)㸬ᮏ◊✲࡛ࡣ㸪ᡴᧁ㒊ࡢ࿘㎶࡟ᑟධࡉࢀࡿᅽ⦰ᛂຊ(ᅗ2[I])ࢆ฼⏝ࡍࡿ᪉ἲ࡜ࡋ࡚㸪U ࣜࣈࡢෆഃ(ᅗ 3(a))ࡸእഃ(ᅗ 3(b))ࢆࣆ࣮ࢽࣥࢢฎ⌮ࡍࡿᕤἲ㸪ᡴᧁ㒊ࡢ⿬㠃࡟ᑟධࡉࢀࡿᅽ⦰ᛂຊ(ᅗ 2[II])ࢆ฼⏝ࡍࡿ᪉ἲ࡜ࡋ࡚㸪ࢹࢵ࢟ࣉ࣮ࣞࢺࡢୖ㠃(ᅗ 3(c))ࢆࣆ࣮ࢽࣥࢢฎ⌮ࡍࡿᕤἲࢆᥦ᱌ࡍࡿ㸬ࡲࡓ㸪1 ❶࡛㏙࡭ࡓࡼ࠺࡟㸪஺ᕪ㒊࠿ࡽ⏕ࡌࡿࢹࢵ࢟ࡁ⿣ࡢ⑂ປᑑ࿨ࡣ㸪ࢫ࢝ࣛࢵࣉࢆタࡅࡿࡇ࡜࡛ྥୖࡍ
ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟ࡉࢀ࡚࠸ࡿ 3)㸬ࡑࡇ࡛㸪஺ᕪ㒊ࡢᶓ᱆ࢆࢻࣜࣝ࡜ࣂ࣮ࢢࣛ࢖ࣥࢲ࣮ࢆ⏝࠸࡚ษ๐ࡋ㸪ࢫ࢝ࣛ(a) PI(b) PO(c) PL(d) H(e) H+PO(f) H+PO+PIᅗ 3 ヨ㦂యࡢ✀㢮

− 181 −

ࢵࣉࢆタࡅࡿᕤἲ(ᅗ 3(d))㸪ࢫ࢝ࣛࢵࣉࢆ฼⏝ࡋ࡚ U ࣜࣈࡢእഃ඲㠃ࢆࣆ࣮ࢽࣥࢢฎ⌮ࡍࡿᕤἲ(ᅗ 3(e))㸪ࡉࡽ࡟ U ࣜࣈࡢෆഃࢆࣆ࣮ࢽࣥࢢฎ⌮ࡍࡿᕤἲ(ᅗ 3(f))ࢆᥦ᱌ࡍࡿ㸬ヨ㦂యࡢ✀㢮ࡢ୍ぴࢆᅗ 3 ࡟♧ࡍ㸬ࡦࡎࡳࢤ࣮ࢪࡢ㈞௜఩
⨨ࡣ㸪ᅗ 1 ࡟♧ࡋ࡚࠸ࡿ㸬㸰㸬㸰 ⑂ປヨ㦂 ᮏ◊✲࡛⏝࠸ࡓᯈ᭤ࡆ᣺ືປヨ㦂ᶵࢆᅗ 4 ࡟♧ࡍ㸬ᐇᶫ࡛ࡣ㸪஺㏻Ⲵ㔜ࡀࢹࢵ࢟ࣉ࣮ࣞࢺୖ㠃࡟㍕Ⲵࡋ㸪஺ᕪ㒊ࡢ࣮ࣝࢺ㒊ࡣᅽ⦰ࡢ⧞㏉ࡋⲴ㔜ࢆཷࡅࡿ 4)㸬ࡋࡓࡀࡗ࡚㸪ᐇ㦂࡛ࡣ㸪

ᅗ 4 ヨ㦂యࣂࢿࢆᢲࡋୖࡆࡿࡇ࡜࡟ࡼࡗ࡚ࡢ࣮ࣝࢺ㒊ࡢᛂຊẚࢆ R=-҄࡜ࡋࡓ㸬බ⛠ᛂຊࡣ㸪ࢤ࣮ࢪ B㸪C ࡛ィࡉࢀࡿࡦࡎࡳࡢᖹ

: Runout

200

JSSC
B(155)

2

Stress range (N/mm )ᆒ್࡟ᙎᛶಀᩘࢆ஌ࡌ࡚⟬ฟࡋࡓ㸬㸱㸬⑂ປヨ㦂⤖ᯝ ᅗ 5 ࡟⑂ປヨ㦂⤖ᯝࢆ♧ࡍ㸬⑂ປᑑ࿨ࡣ㸪஺ᕪ㒊ࡢ⁐᥋࣮ࣝࢺ࠿ࡽࡢࡁ⿣ࡢⓎ⏕࡟ࡼࡗ࡚㸪ࢤ࣮ࢪ A ࡢࡦࡎࡳ⠊ᅖࡀึᮇࡢࡦࡎࡳ⠊ᅖ࠿ࡽ 5%ኚ໬ࡍࡿࡲ࡛ࡢ⧞㏉ࡋᅇᩘ࡜ࡋࡓ㸬ヨ㦂య PO ࡢ⑂ປᙉᗘࡣ㸪⁐᥋ࡲࡲࡢヨ㦂య(AW)ࡢࡑࢀࡼࡾ
ࡶపࡃ࡞ࡗࡓ㸬ࡇࢀࡣ㸪ヨ㦂య PO ࡛ࡣ㸪ᶓࣜࣈ఩⨨࡛ࣆ࣮ࢽࣥࢢฎ⌮ࢆṆࡵࡿࡇ࡜࡛㸪ࣆ࣮ࢽࣥࢢฎ⌮ࡢඛ➃࡛࠶ࡿ⁐C(125)

100
90

D(100)

70 Bending Test R = í҄
50
30

AW
PO
PI
PL
5

10

E(80)

H
H+PO
H+PO+PI

F(65)
G(50)
6

10
Number of cycles

710ᅗ 5 ⑂ປヨ㦂⤖ᯝ᥋࣮ࣝࢺ㒊࡟ᘬᙇᛂຊࡀᑟධࡉࢀࡓࡓࡵࡔ࡜⪃࠼ࡽࢀࡿ㸬ヨ㦂య PI ࡛ࡣ㸪⑂ປᙉᗘࡢࡤࡽࡘࡁࡀ኱ࡁ࠿ࡗࡓ㸬ࡇࢀࡣ㸪U ࣜࣈࡢෆഃ࡟ࣆ࣮ࢽࣥࢢࢆ᪋ᕤࡋࡓ࡜ࡁ࡟࣮ࣝ
ࢺ㒊࡟ᑟධࡉࢀࡿᅽ⦰ᛂຊࡀ㸪ࣆ࣮ࢽࣥࢢ᪋ᕤ఩⨨࡜࣮ࣝࢺ㒊ࡢ㊥㞳㸪ࡘࡲࡾ⁐᥋࣮ࣝࢺ㒊ࡢ⁐ࡅ㎸ࡳ㔞࡟౫Ꮡࡍࡿ࠿ࡽ࡛࠶ࡿ㸬ࡋ࠿ࡋ㸪ヨ㦂య PI ࡢ⑂ປᙉᗘࡣ㸪ヨ㦂య AW ࡢࡑࢀࡼࡾࡶ㸪ᑡ࡞ࡃ࡜ࡶ 1 ➼⣭௨ୖྥୖࡋࡓ㸬ヨ㦂య PL ࡛ࡣ㸪⑂ປᙉᗘྥୖຠᯝࡀ᭱ࡶ኱ࡁࡃ㸪බ⛠ᛂຊ⠊ᅖ 180N/mm2 ࡛ࡶࡁ⿣ࡀⓎ⏕ࡋ࡞࠿ࡗࡓ㸬ヨ㦂య H㸪H+PO ࡢ⑂ປᙉᗘࡣ㸪ヨ㦂య AW ࡢࡑࢀࡼࡾࡶⱝᖸྥୖࡋࡓ㸬ヨ㦂య H+PO+PI ࡢ⑂ປᙉᗘࡣ㸪ヨ㦂య AW ࡢࡑࢀࡼࡾࡶ 1 ➼⣭௨ୖྥୖࡋࡓ㸬㸲㸬ࡲ࡜ࡵ ᮏ◊✲࡛ࡣ㸪ࢹࢵ࢟ࣉ࣮ࣞࢺ࣭U ࣜࣈ࣭ᶓࣜࣈ஺ᕪ㒊ࡢ⁐᥋࣮ࣝࢺ࠿ࡽⓎ⏕ࡍࡿࢹࢵ࢟ࣉ࣮ࣞࢺ㈏㏻ࡁ⿣࡟ᑐࡍࡿ⑂ປᙉᗘྥୖᕤἲࢆᥦ᱌ࡋ㸪ࡑࡢຠᯝࢆ⑂ປヨ㦂࡟ࡼࡗ࡚᫂ࡽ࠿࡟ࡋࡓ㸬U ࣜࣈࡢእഃ࠿ࡽࣆ࣮ࢽࣥࢢ
ฎ⌮ࡋࡓヨ㦂య࡛ࡣ㸪⁐᥋ࡲࡲ࡜ẚ㍑ࡋ࡚⑂ປᙉᗘࡀపୗࡋࡓ㸬U ࣜࣈෆഃ࠿ࡽࣆ࣮ࢽࣥࢢฎ⌮ࡋࡓヨ㦂య㸪๐Ꮝฎ⌮ࡋࡓヨ㦂య㸪๐Ꮝฎ⌮࡜ࣆ࣮ࢽࣥࢢฎ⌮ࢆ᪋ᕤࡋࡓヨ㦂య࡛ࡣ㸪⁐᥋ࡲࡲ࡜ẚ㍑ࡋ࡚㸪1 ➼⣭௨ୖ⑂ປᙉᗘࡀྥୖࡋࡓ㸬ࢹࢵ࢟ࣉ࣮ࣞࢺୖ㠃࠿ࡽࣆ࣮ࢽࣥࢢฎ⌮ࡋࡓヨ㦂య࡛ࡣ㸪බ⛠ᛂຊ⠊ᅖ 180N/mm2 ࡛ࡶࡁ⿣ࡀⓎ⏕ࡏࡎ㸪㧗࠸⑂ປᙉᗘࢆ♧ࡋࡓ㸬ཧ⪃ᩥ⊩1) ᅵᮌᏛ఍㸸㗰ᗋ∧ࡢ⑂ປ㸪୸ၿ㸪2010㸬2) ᪥ᮏ㐨㊰༠఍㸸㗰㐨㊰ᶫࡢ⑂ປタィᣦ㔪㸪୸ၿ㸪2002㸬3) ཎ⏣ࡽ㸸㗰ᗋ∧ࢹࢵ࢟ࣉ࣮ࣞࢺ࣭ࢺࣛࣇࣜࣈ࣭ᶓࣜࣈ஺ᕪ㒊ࡢࢹࢵ࢟ࣉ࣮ࣞࢺ㈏㏻ࡁ⿣ࡢⓎ⏕࣭㐍ᒎᛶ≧࡟ᑐࡍࡿࢹࢵ࢟ࣉ࣮ࣞࢺཌ࡜ࢫ࢝ࣛࢵࣉࡢᙳ㡪㸪㗰ᵓ㐀ㄽᩥ㞟㸪➨ 19 ᕳ➨ 73 ྕ㸪pp. 65-74㸪2012㸬4) ᳃ࡽ㸸㗰ᗋ∧ࢹࢵ࢟ࣉ࣮ࣞࢺ࣭ᶓࣜࣈ࣭ࢺࣛࣇࣜࣈ஺ᕪ㒊ࡢ⑂ປヨ㦂࡜ᛂຊゎᯒ㸪ᅵᮌᏛ఍ㄽᩥ㞟 A1㸦ᵓ㐀࣭ᆅ㟈ᕤᏛ㸧㸪Vol. 67㸪No. 1㸪pp. 95-107㸪2011㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜタィᏛศ㔝㸧− 182 −

▷᫬㛫⇕ฎ⌮࡟ࡼࡿ Ti-6Al-4V ྜ㔠✚ᒙ㐀ᙧᮦࡢ⑂ປᙉᗘᨵၿ

ி㒔ᕤⱁ⧄⥔኱Ꮫ ᶵᲔᕤᏛ⣔᳃⏣ ㎮㑻㸯㸬┠ⓗ 㔠ᒓ⏝ 3 ḟඖࣉࣜࣥࢱ࡟⏝࠸ࡽࢀࡿ SLM㸦selective laser melting㸧ἲࡣ㸪࣮ࣞࢨ㉮ᰝ࡟ࡼࡾ㔠ᒓᚤ⢏Ꮚࢆ㑅ᢥⓗ࡟⁐⼥࣭จᅛࡉࡏࡿࡇ࡜࡟ࡼࡾ㸪௵ពᙧ≧ࡢ〇ရࢆస〇ࡍࡿඃࢀࡓ✚ᒙ㐀ᙧἲ࡛࠶ࡿ㸬ࡇࡢ᪉ἲࡣ㸪≉࡟ࢳࢱࣥ㸦౛࠼ࡤ㸪Ti-6Al-4V ྜ㔠㸧〇་⒪⏝࢖ࣥࣉࣛࣥࢺࡸ⯟✵ᶵ㒊ရ࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬ࡋ
࠿ࡋ㸪SLM ἲ࡟ࡼࡾస〇ࡋࡓ Ti-6Al-4V ྜ㔠㸦௨ᚋ㸪SLM ᮦ㸧ࡢሙྜ㸪✚ᒙ㐀ᙧ୰࡟ᙧᡂࡉࢀࡿ㐀ᙧḞ㝗ࡢࡓࡵ㸪⑂ປᙉᗘࡀᒎఙᮦࡢ 60%⛬ᗘ࡜኱ᖜ࡟పࡃ࡞ࡿၥ㢟ࡀ࠶ࡿ㸬୍᪉㸪ᮏሗ࿌⪅ࡣ௨๓࡟㸪ᘏᛶࡢపୗ
࡞ࡋ࡟㸪Ti-6Al-4V ྜ㔠ᒎఙᮦࡢᘬᙇᙉᗘ࠾ࡼࡧ⑂ປᙉᗘࢆ㢧ⴭ࡟ᨵၿྍ⬟࡞▷᫬㛫⇕ฎ⌮ἲࢆ㛤Ⓨࡋ࡚࠸ࡿ 1)㸪2)㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ࡇࡢ▷᫬㛫⇕ฎ⌮ἲࢆ⏝࠸࡚ SLM ᮦࡢ⑂ປᙉᗘࢆᨵၿࡋࡼ࠺࡜ヨࡳࡓ㸬㸰㸬◊✲᪉ἲ
 Ti-6Al-4V ྜ㔠〇ᚤ⢏Ꮚ㸦ᖹᆒ⢏ᚄ 50.12 ȝm㸧ࢆ⏝࠸࡚㸪SLM 㐀ᙧ⿦⨨࡟ࡼࡾ┤ᚄ 14 mm㸪㛗ࡉ 90 mm
ࡢ୸Წࢆస〇ࡋࡓ㸬ࡑࡢ㝿㸪୸Წࡢ㍈᪉ྥࡣ✚ᒙ㠃࡟ᑐࡋ࡚ᆶ┤࡞᪉ྥ࡜ࡋࡓ㸬ࡇࡢᮦᩱࢆ⑂ປヨ㦂∦ᙧ≧㸦JIS Z 2274, No.2㸧࡟ᶵᲔຍᕤࡋࡓᚋ㸪௨ୗࡢ᮲௳࡛▷᫬㛫⇕ฎ⌮ࢆ᪋ࡋࡓ㸬 ձ1 ẁ㝵⇕ฎ⌮㸸ຍ⇕ ᗘ 1025Υ㸦1298 K㸧㸪ಖᣢ᫬㛫 60 s㸪Ỉ෭ࡢ᮲௳࡛ฎ⌮ ղ2 ẁ㝵⇕ฎ⌮㸸ձࡢ᮲௳࡛⇕ฎ⌮ᚋ㸪ຍ⇕ ᗘ 550Υ㸦823 K㸧㸪ಖᣢ᫬㛫 40 s㸪✵෭ࡢ᮲௳࡛ฎ⌮௨ᚋ㸪ᮍฎ⌮ᮦࢆ UN ᮦ㸪1 ẁ㝵⇕ฎ⌮ࢆ᪋ࡋࡓᮦᩱࢆ ST1025 ᮦ㸪2 ẁ㝵⇕ฎ⌮ࢆ᪋ࡋࡓᮦᩱࢆ STA1025
ᮦ࡜࿧ࡪ㸬࡞࠾㸪750Υ㸦1023 K㸧㸪3.6 ks㸪⅔෭ࡢ᮲௳࡛↝㕌ࡋࡓᅽᘏ୸Წࢆ⑂ປヨ㦂∦ᙧ≧࡟ᶵᲔຍᕤࡋ㸪ẚ㍑ᮦ࡜ࡋ࡚⏝࠸ࡓ㸦௨ᚋ㸪W ᮦ㸧㸬 UN ᮦ࠾ࡼࡧྛ⇕ฎ⌮ᮦࡢᚤど⤌⧊ࡣ㸪EBSD ศᯒ࡟ࡼࡾㄪ࡭
ࡓ㸬ࡑࢀࡽࡢṧ␃ᛂຊศᕸࡣ㸪ྛ⑂ປヨ㦂∦ࡢ᭱ᑠᚄ㒊᩿㠃㸦┤
ᚄ 5 mm㸧ࢆᑐ㇟࡜ࡋ࡚㸪ࢥࣥࢱ࣮ἲ࡟ࡼࡾ᥎ᐃࡋࡓ㸬᭤ࡆ⑂ປヨ㦂ࡣ㸪඲ᮦᩱ࡟ࡘ࠸࡚ヨ㦂㒊ࢆ࢚࣓ࣜ◊☻࠾ࡼࡧࣂࣇ◊☻࡟ࡼࡾ㙾㠃࡟௙ୖࡆࡓᚋ㸪ᛂຊẚ R =㸫1㸪⧞㏉ࡋ㏿ᗘ 25 Hz㸪ᐊ࣭኱Ẽ୰ࡢ᮲௳࡛⾜ࡗࡓ㸬㸱㸬⤖ᯝ ᅗ㸯࡟㸪UN ᮦ࠾ࡼࡧྛ⇕ฎ⌮ᮦࡢ IPF ࣐ࢵࣉࢆ♧ࡍ㸬UN ᮦ
࡟ࡣ㸪SLM ᮦ≉᭷ࡢ✚ᒙ᪉ྥ࡬ఙࡧࡿᰕ≧⤌⧊ࡀほᐹࡉࢀ㸪ࡇࡢ⤌⧊ࡣ㔪≧ Į' ┦࡜㸪ࡑࡢ㝽㛫ࢆᇙࡵࡿࡼ࠺࡟Ꮡᅾࡍࡿ‽Ᏻᐃ࡞ṧ␃ ȕ ┦㸦ᅗ 1 ࡢ㯮Ⰽ㒊㸧࠿ࡽᵓᡂࡉࢀ࡚࠸ࡓ㸬ST1025 ᮦࡢ⤌⧊ࡣ㸪UN ᮦ࡜ྠᵝ࡟ Į' ┦࠾ࡼࡧṧ␃ ȕ ┦࠿ࡽᵓᡂࡉࢀ࡚࠸
ࡓࡀ㸪Į' ┦ࡣⱝᖸᚤ⣽࡟࡞ࡗࡓ㸬STA1025 ᮦࡢ⤌⧊ࡣ㸪2 ẁ㝵┠ࡢ⇕ฎ⌮࡟ࡼࡾṧ␃ ȕ ┦୰࡬ Į ┦ࡀᯒฟࡋ㸪ṧ␃ ȕ ┦ࡢ๭ྜࡀ኱
ᖜ࡟పୗࡋࡓ㸬ᅗ㸯㸧IPF ࣐ࢵࣉ− 183 −

ᅗ㸰㸧S㸫N ᭤⥺ᅗ㸱㸧ࢥࣥࢱ࣮ἲ࡟ࡼࡾㄪ࡭ࡓṧ␃ᛂຊศᕸ ᅗ㸰࡟㸪UN ᮦ࠾ࡼࡧྛ⇕ฎ⌮ᮦࡢ S-N ᭤⥺ࢆ W ᮦࡢ⤖ᯝ࡜࡜ࡶ࡟ࡲ࡜ࡵ࡚♧ࡍ㸬ࡇࡢᅗ࠿ࡽ᫂ࡽ࠿࡞ࡼ
࠺࡟㸪UN ᮦࡢ⑂ປᙉᗘࡣ W ᮦࡢࡑࢀࡼࡾࡶ኱ᖜ࡟ప࠸್࡜࡞ࡗࡓ㸬ࡑࡢ୍᪉࡛㸪ST1025 ᮦࡢ⑂ປᙉᗘࡣ㸪UN ᮦࡢỈ‽ࢆ኱ࡁࡃ㉸࠼㸪W ᮦࡢỈ‽ࢆࡶୖᅇࡗࡓ㸬ࡲࡓ㸪STA1025 ᮦࡢ⑂ປᙉᗘࡣ㸪W ᮦ࡜ྠ⛬ᗘ࡟࡞ࡗࡓ㸬௨ୖࡢࡼ࠺࡟㸪▷᫬㛫⇕ฎ⌮ࡣ UN ᮦࡢ⑂ປᙉᗘࢆ㢧ⴭ࡟ᨵၿࡋࡓ㸬 ᅗ㸱࡟㸪ࢥࣥࢱ࣮ἲ࡟ࡼࡾ᥎ᐃࡋࡓ UN ᮦ࠾ࡼࡧྛ⇕ฎ⌮ᮦࡢṧ␃ᛂຊศᕸࢆ♧ࡍ㸬ࡇࡢᅗ࠿ࡽ⌮ゎࡉࢀࡿࡼ࠺࡟㸪UN ᮦࡢṧ␃ᛂຊศᕸࡣヨ㦂∦୰ኸ㒊࡛ᘬᙇ࡜࡞ࡗࡓࡀ㸪⾲㠃㏆ഐࡢ⤯ᑐ್ࡣప࠿ࡗࡓ㸬ST1025ᮦ࡛ࡣ㸪⇕ฎ⌮᫬࡟ᛴ෭ࡉࢀࡓࡓࡵ㸪⾲㠃࠿ࡽ 1.5 mm ࡢ῝ࡉࡲ࡛ᅽ⦰ṧ␃ᛂຊࡀ௜୚ࡉࢀࡓ㸬ࡑࡢ୍᪉࡛㸪
STA1025 ᮦࡢሙྜ࡟ࡣ㸪⾲㠃௜㏆࡟ᅽ⦰ࡢṧ␃ᛂຊࡀ௜୚ࡉࢀࡓࡶࡢࡢ㸪2 ẁ㝵┠ࡢ⇕ฎ⌮࡟ࡼࡾṧ␃ᛂຊࡀ㛤ᨺࡉࢀࡓࡓࡵ㸪ST1025 ᮦࡢሙྜࡼࡾࡶ್ࡣẚ㍑ⓗపࡃ࡞ࡗࡓ㸬 ௨ୖࡢ⤖ᯝࡼࡾ㸪▷᫬㛫⇕ฎ⌮࡟࡜ࡶ࡞࠺⑂ປᙉᗘࡢ኱ᖜ࡞ᨵၿࡣ㸪๓㏙ࡢ⤌⧊ኚ໬ࡔࡅ࡛࡞ࡃ㸪⇕ฎ⌮᫬࡟ᑟධࡉࢀࡓᅽ⦰ṧ␃ᛂຊࡀ⾲㠃㏆ഐ࡟఩⨨ࡍࡿ㐀ᙧḞ㝗࠿ࡽࡢࡁ⿣Ⓨ⏕ࢆᢚไࡋࡓࡇ࡜࡟㉳ᅉࡍࡿ࡜᥎
ᐹࡉࢀࡓ

㸲㸬⤖ㄽ
 ▷᫬㛫⇕ฎ⌮࡟ࡼࡾ㸪SLM ᮦ࡟ࡘ࠸࡚㐺ษ࡞⤌⧊ไᚚࡀ࡞ࡉࢀ㸪ྠ᫬࡟㧗࠸ᅽ⦰ṧ␃ᛂຊࡀ⾲㠃௜㏆࡟ᑟධࡉࢀࡓ㸬ࡑࡢ⤖ᯝ㸪ୖグࡢ⇕ฎ⌮࡟ࡼࡾ SLM ᮦࡢ⑂ປᙉᗘࡣᒎఙᮦ࡜ྠ⛬ᗘ௨ୖࡢỈ‽ࡲ࡛ᨵၿࡉࢀࡓ㸬㸳㸬ཧ⪃ᩥ⊩
1) T. Morita, K. Hatsuoka, T. Iizuka, K. Kawasaki: Mater. Trans., 46 (2005), 1681-1686.
2) T. Morita, W. Niwayama, K. Kawasaki, Y. Misaka: Trans. JSME A, 64 (1998), 2115-2120㸬

㸦ඹྠ◊✲ศ㔝㸸᥋ྜタィᏛศ㔝㸧− 184 −

㕲㗰ᮦᩱ⁐᥋㒊ࡢ⤌⧊ᙧᡂ࡜Ỉ⣲ࡢᒁᅾ໬㛵す኱Ꮫ ໬Ꮫ⏕࿨ᕤᏛ㒊
᫓ྡ ໶
1. ⥴ゝ
 㕲㗰ᮦᩱࢆ⁐᥋ࡋࡓሙྜ࡟ࡣ㸪⤌⧊ኚ໬࡟ࡼࡿ◳໬࡜⁐᥋࣭෭༷᫬࡟Ⓨ⏕ࡍࡿṧ␃ᛂຊࡀⓎ⏕ࡍࡿሙྜࡀ࠶ࡿ㸬ࡇࡢࡼ࠺࡞⁐᥋㒊ࢆྵࡴ㕲㗰ᮦᩱࢆ‵₶⎔ቃ࡛౑⏝ࡍࡿ࡜㸪ᮦᩱࡢ⭉㣗࡟ࡼࡾ⏕ᡂࡋࡓỈ⣲ࡀᮦᩱෆ࡟౵ධࡋỈ⣲⬤໬ࡀ㉳ࡇࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ 1)㸬Ỉ⣲⬤໬ᶵᵓࢆヲ⣽࡟ゎ᫂ࡍࡿୖ࡛㸪㔠ᒓෆ࡟࠾ࡅࡿỈ⣲ࡢᒁᡤⓗ࡞Ꮡᅾ఩⨨ࡸᣑᩓ⤒㊰ࢆ᳨ฟࡍࡿᡭẁࡢ㔜せᛶࡀㄆ㆑ࡉࢀ࡚࠾ࡾ㸪ࡉࡲࡊࡲ࡞ᡭἲࡀ◊✲࣭㛤Ⓨࡉࢀ࡚࠸ࡿ 2)㸬ࡋ࠿ࡋ㸪ࡇࢀࡽࡢᡭἲࡢከࡃࡣ㸪㗰୰࡟ᏑᅾࡍࡿỈ⣲ศᕸࡢືⓗኚ໬ࢆほᐹࡍࡿࡇ࡜ࡀᅔ㞴࡛࠶ࡿ㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ㗰୰࡟࠾ࡅࡿỈ⣲ࡢᒁᅾ఩⨨࡜ᣑᩓ⤒㊰ࡢືⓗ࡞᳨ฟࡀྍ⬟࡞㉮ᰝᆺ࣮ࣞࢨ࣮㟁ゎ㢧ᚤ㙾ࢆ㛤Ⓨࡍࡿ࡜࡜ࡶ
࡟㕲㗰ᮦᩱࢆ⛣ືࡋࡓỈ⣲ࡢྍど໬ࢆヨࡳࡓ㸬
2. ᐇ㦂
 㛤Ⓨࡋࡓ㉮ᰝᆺ࣮ࣞࢨ࣮㟁ゎ㢧ᚤ㙾ࡢእほ෗┿࡜ᶍᘧᅗࢆᅗ㸯࡟♧ࡍ㸬࣮ࣞࢨ࣮↷ᑕᆺ㢧ᚤ㙾⿦⨨ࡣ㸪࣮ࣞࢨ࣮↷ᑕᆺ㢧ᚤ㙾࣊ࢵࢻ㸪ࣔࢽࢱ࣮㸪PC㸪ධຊಙྕグ㘓⏝ࢯࣇࢺ࢙࢘࢔࡞࡝࡛ᵓᡂࡉࢀ࡚࠾ࡾ㸪㢧ᚤ㙾࡛㞟᮰ࡉࡏࡓ༙ᑟయ࣮ࣞࢨ࣮(Ἴ㛗 405 nm)ࢆヨᩱ࡟↷ᑕࡍࡿࡇ࡜ࡀ࡛ࡁ㸪 XY ࢫࢸ࣮ࢪࢆᦚ㍕ࡍࡿࡇ࡜࡟ࡼࡾ㸪1 μm ࡢศゎ⬟࡛ヨᩱྎࢆ⛣ືࡉࡏࡿࡇ࡜ࡀ࡛ࡁࡿ㸬ࡇࡢ࣮ࣞࢨ࣮↷ᑕᆺ㢧ᚤ㙾⿦⨨࡟ DUAL POTENTIOSTAT ࡜㸪Ỉ⣲㏱
㐣ヨ㦂ࡀ⾜࠼ࡿ཯ᛂᵴࢆタ⨨ࡋ࡚㉮ᰝᆺ࣮ࣞࢨ࣮㟁ゎ㢧ᚤ㙾࡜ࡋࡓ㸬Fig. 1 ࡟཯ᛂᵴࢆヨᩱྎ࡟タ⨨ࡋࡓ㢧ᚤ㙾ࡢ඲యᅗࢆ♧ࡍ㸬ࡇࡢ⿦⨨ࢆ⏝࠸࡚㸪Ỉ⣲㏱㐣ヨ㦂୰ࡢỈ⣲᳨ฟഃヨᩱ⾲㠃࡟㞟᮰ࡉࡏࡓ࣮ࣞࢨ࣮ࢆ↷ᑕࡋ㸪⇕࡟ࡼࡗ࡚ᒁ㒊ⓗ࡟࢔ࣀ࣮ࢻ཯ᛂࢆಁ㐍ࡉࡏ㸪↷ᑕ๓ࡢ㟁ὶ್࡜ࡢᕪศ ǻiH ࢆ ᐃࡋࡓ㸬 ཌࡉࡀ 1.7㸪0.8㸪0.5 mm ࡢ⣧㕲(99.5 mass%)඲㠃ࢆ㟁ゎ◊☻ᚋ㸪Ỉ⣲᳨ฟ㠃ࡢࡳ࡟ Ni ࡵࡗࡁࢆ⾜ࡗࡓࡶࡢࢆヨᩱ࡜ࡋࡓ㸬Ỉ⣲᳨ฟഃ(ୖഃ)࡟ࡣ 0.1 kmol㺃m-3 NaOH Ỉ⁐ᾮ㸪Ỉ⣲ᑟධഃ(ୗഃ)࡟ࡣ pH 2 ࡢ H2SO4 Ỉ⁐ᾮࢆ⏝࠸ࡓ㸬Ỉ⣲᳨ฟഃ࡟ࡣ 0 VPt ࢆ༳ຍࡋ㸪Ỉ⣲ᑟධഃ࡟ࡣẼἻࡀⓎ⏕ࡋ࡟ࡃ࠸㟁ὶ್ࢆ୚࠼ࡓ㸬࣮ࣞࢨ࣮ගᙉᗘࡣ 20
㹼230 mW ࡢ⠊ᅖ࡜ࡋࡓ㸬ᅗ㸯 ㉮ᰝᆺ࣮ࣞࢨ࣮㟁ゎ㢧ᚤ㙾ࡢእほ෗┿࡜ᶍᘧᅗ− 185 −

3. ⤖ᯝ࣭⪃ᐹ ヨᩱ⾲㠃඲యࡢỈ⣲᳨ฟ㔞(iH)࡜࣮ࣞࢨ࣮↷ᑕ᫬ࡢỈ⣲᳨ฟ㔞(ǻiH)࡜ࡢ㛵ಀࢆᅗ㸰࡟♧ࡍ㸬ࡇࡢᅗࡼࡾ࣮ࣞࢨ࣮
ࡢගᙉᗘࡀ 21 mW ࡛ࡣගᙉᗘ୙㊊࡟ࡼࡾ ǻiH ࢆ᫂☜࡟᳨ฟ࡛ࡁ࡞࠿ࡗࡓࡀ㸪90 mW ௨ୖ࡛ࡣ ǻiH ࢆ㢧ⴭ࡟᳨ฟࡍ
ࡿࡇ࡜ࡀ࡛ࡁࡓ㸬ࡲࡓ㸪iH ࡀ኱ࡁࡃ࡞ࡿ࡟ࡘࢀ࡚ ǻiH ࡶ኱ࡁࡃ࡞ࡿഴྥࡀぢࡽࢀ㸪iH ࡀᒁᡤⓗ࡟኱ࡁ࡞㒊఩ࢆࡇࡢ⿦⨨᳨࡛ฟྍ⬟࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ᅗ㸰 ヨᩱ⾲㠃඲యࡢỈ⣲᳨ฟ㔞(iH)࡜࣮ࣞࢨ࣮↷ᑕ᫬ࡢỈ⣲᳨ฟ㔞(ǻiH)࡜ࡢ㛵ಀ ヨᩱ࡟Ỉ⣲ࢆ㏱㐣ࡉࡏ࡞ࡀࡽ㸪Ỉ⣲᳨ฟഃ⾲㠃ࡢᡤᐃࡢ୍Ⅼ࡟࣮ࣞࢨ࣮ࢆ↷ᑕࡋࡓ࡜ࡁࡢỈ⣲᳨ฟഃ㟁ὶࡢ⤒᫬ኚ໬࡜㸪ヨᩱࡢ௦ࢃࡾ࡟タ⨨ࡋࡓ⇕㟁ᑐࡢඛ➃࡟࣮ࣞࢨ࣮ࢆ↷ᑕࡋࡓ࡜ࡁࡢ ᗘࡢ⤒᫬ኚ໬ࢆᅗ㸱࡟♧ࡍ㸬ヨᩱ࡟࣮ࣞࢨ࣮ࢆ↷ᑕࡍࡿ࡜㸪Ỉ⣲᳨ฟഃࡢ㟁ὶࡣ୍᪦ᛴ⃭࡟ῶᑡࡋࡓᚋ࡟ᚎࠎ࡟ቑຍࡋ㸪ᐃᖖ㟁ὶ್࡟₞㏆ࡋࡓ㸬୍᪉࣮ࣞࢨ࣮ࢆᾘⅉࡍࡿ࡜㸪㟁ὶࡣ୍᪦ᛴ⃭࡟ቑຍࡋࡓᚋ࡟↷ᑕ๓ࡢ㟁ὶ್࡟₞㏆ࡋࡓ㸬࣮ࣞࢨ࣮ࢆ↷ᑕࡋࡓ㒊ศࡢ ᗘࡣᚎࠎ࡟ᩘ K ቑຍࡋ㸪ࡑࡢᣲືࡣ㟁ὶቑຍࡢ⤒᫬ⓗ࡞ᣲື࡜୍⮴ࡋࡓ㸬ᅗ㸱 ヨᩱ࡟Ỉ⣲ࢆ㏱㐣ࡉࡏ࡞ࡀࡽ㸪Ỉ⣲᳨ฟഃ⾲㠃ࡢᡤᐃࡢ୍Ⅼ࡟࣮ࣞࢨ࣮ࢆ↷ᑕࡋࡓ࡜ࡁࡢỈ⣲᳨ฟഃ㟁ὶࡢ⤒᫬ኚ໬࡜㸪ヨᩱࡢ௦ࢃࡾ࡟タ⨨ࡋࡓ⇕㟁ᑐࡢඛ➃࡟࣮ࣞࢨ࣮ࢆ↷ᑕࡋࡓ࡜ࡁࡢ ᗘࡢ⤒᫬ኚ໬ཧ⪃ᩥ⊩1) ༡㞼㐨ᙪ㸸ᮦᩱ࡜⎔ቃ㸪55㸪pp.380-389㸪(2006)㸬
2) ᭱㏆ࡢỈ⣲ࡢ᳨ฟἲ࡜Ỉ⣲⬤໬㜵Ṇἲ㸪᪥ᮏ㔠ᒓᏛ఍⦅㸪(1999)㸬
㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶホ౯࣭ண ࢩࢫࢸ࣒Ꮫศ㔝㸧− 186 −

」ྜᮦᩱࡢ⇕≀ᛶホ౯ᅜ❧◊✲㛤Ⓨἲே ⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ ≀㉁ィ ᶆ‽◊✲㒊㛛㜿Ꮚᓥ ࡵࡄࡳ
㸯㸬◊✲ࡢ⫼ᬒ」ྜᮦᩱࡣࠊᗄࡘ࠿ࡢᮦᩱࢆ⤌ࡳྜࢃࡏ࡚ᶵ⬟ࢆ௜ຍࡲࡓࡣྥୖࡉࡏࡓᮦᩱ࡛࠶ࡿࠋ㏆ᖺࡢ࢚ࢿࣝࢠ࣮ၥ
㢟࡟㛵ࡋ࡚ࠊ᩿⇕ࡸᨺ⇕ࡢᶵ⬟ࢆ௜ຍࡋࡓ᪂ࡋ࠸ᮦᩱࡀ㛤Ⓨࡉࢀ࡚࠸ࡿࠋ౛࠼ࡤࠊᚑ᮶ࡢ᩿⇕ᮦࢆࣇ࢕࣒ࣝ
࡛ໟ⿦ࡋ࡚ෆ㒊ࢆ┿✵ࡋࡓࡾࠊከᏍ㉁࡞ᮦᩱࡢ㛢ẼᏍ࡟ప⇕ఏᑟ࢞ࢫࢆᑒṆࡋࡓࡾࡋ࡚᩿⇕ᛶ⬟ࢆྥୖࡉࡏ
ࡓᮦᩱࡸࠊ⇕ఏᑟ⋡ࡀ㧗࠸⣲ᮦࡢࣇ࢕࣮ࣛࢆప⇕ఏᑟ࡞ᶞ⬡➼࡟ศᩓࡉࡏࡿࡇ࡜࡛㍍㔞࠿ࡘ⇕ఏᑟᛶࢆྥୖ
ࡉࡏࡓᮦᩱࠊప⇕ఏᑟ⋡࡞ᮦ㉁ࡢ⓶⭷ࢆ⾲㠃࡟ᙧᡂࡉࡏ࡚ᒙ≧࡟ࡍࡿࡇ࡜࡛ⰺᮦࢆಖㆤࡋࡓᮦᩱ࡞࡝ࠊከᵝ࡞ࡶࡢࡀ࠶ࡿࠋᮏ◊✲࡛ࡣࠊࢼࣀ⢏Ꮚࢆ⏝࠸ࡓ」ྜ᩿⇕ᮦ࡟ὀ┠ࡋࠊࡑࡢ⇕ఏᑟ≉ᛶࡢホ౯ࢆᐇ᪋ࡋࡓࠋ
᩿⇕ᮦࡢ⇕ఏᑟ⋡ࡣࠊᐃᖖἲ࡟ࡼࡾ ᐃࡉࢀࡿࡇ࡜ࡀከ࠸ࠋᐃᖖἲࡣẚ㍑ⓗప⇕ఏᑟ⋡࡛ᐦᗘࡀప࠸ᮦᩱ
ࡢ⇕ఏᑟ⋡ ᐃ࡟࠾࠸࡚ᐇ⦼ࡀ࠶ࡾ[1]ࠊJIS ࡸ ISO ࡶไᐃࡉࢀ࡚࠸ࡿࠋᐃᖖἲ࡛ࡣࠊ୍⯡࡟ࡣ኱ᆺࡢヨᩱࢆ⏝࠸ࠊࡑࡢᖹᆒⓗ࡞≉ᛶࡀホ౯ࡉࢀࡿࡓࡵࠊ」ྜᮦᩱࡢ࣐ࢡࣟ࡞ホ౯࡬ࡢ㐺ᛂࡀᮇᚅࡉࢀࡿࠋ୍᪉࡛ࠊᚲせ࡜ࡍࡿヨᩱࡀ኱ࡁࡃࠊ ᐃ᫬㛫ࡀ㛗࠸ࡓࡵࠊホ౯࡟ࢥࢫࢺࡸ᫬㛫ࢆせࡋࠊᮦᩱ㛤Ⓨ࡬ࡢࣇ࢕࣮ࢻࣂࢵࢡࡀ㠀ຠ⋡ⓗ࡞㠃ࡶ࠶ࡿࠋᑐ↷ⓗ࡟ࠊᐦᗘࡀẚ㍑ⓗ㧗ࡃ⦓ᐦ࡛ẚ㍑ⓗ㧗⇕ఏᑟ⋡ࡢᅛయᮦᩱࡣࠊࣇࣛࢵࢩࣗἲ[2]࡟
ࡼࡿ⇕ᣑᩓ⋡ࠊDSC ἲ࡟ࡼࡿẚ⇕ᐜ㔞ࠊ㉁㔞࡜ᑍἲ࠿ࡽồࡵࡓ࠿ࡉᐦᗘࢆࡑࢀࡒࢀồࡵࠊࡇࢀࡽࡢ✚࡜ࡋ࡚⇕ఏᑟ⋡ࢆ⟬ฟࡍࡿሙྜࡀከ࠸ࠋࣇࣛࢵࢩࣗἲ࡟ࡼࡿ᩿⇕ᮦࡢホ౯౛ࡣᑡ࡞࠸ࠋヨᩱࡀᑠࡉ࠸ࡇ࡜࠾ࡼࡧ㠀ᐃᖖ࡞ ᐃ࡛࠶ࡿࡇ࡜࠿ࡽ」ྜᮦᩱࡢ࣐ࢡࣟ࡞ホ౯࡟ᑐࡋ࡚ࡢ᭷ຠᛶࡣ㆟ㄽࡀ࠶ࡿࠋࡋ࠿ࡋࠊࣇࣛࢵࢩࣗἲ
ࡣࠊ▷᫬㛫࠿ࡘ㠀᥋ゐ࡛⇕ᣑᩓ⋡ࢆ ᐃ࡛ࡁࡿ฼Ⅼࡀ࠶ࡾࠊࡇࡢ᪉ἲࢆ᩿⇕ᮦࡢホ౯࡟⏝࠸ࡿࡇ࡜ࡀ࡛ࡁࢀ
ࡤࠊᮦᩱ㛤Ⓨࡢຠ⋡ࡢྥୖࡀᮇᚅ࡛ࡁࡿࠋࡇࢀࡲ࡛ࠊᡃࠎࡣࣇࣛࢵࢩࣗἲࢆ⏝࠸ࡓࢩࣜ࢝ࢼࣀ⢏Ꮚ࡜࢞ࣛࢫ
⧄⥔ࡢ」ྜ᩿⇕ᮦࡢ⇕ఏᑟ≉ᛶࡢホ౯࡟ྲྀࡾ⤌ࡳ[3]ࠊホ౯ࡀྍ⬟࡛࠶ࡿࡇ࡜࠾ࡼࡧ ᗘୖ᪼᭤⥺ࡢゎᯒ࡟࠾ࡅࡿㄢ㢟ࢆ᫂ࡽ࠿࡟ࡋ࡚ࡁࡓࠋ௒ᖺᗘࡣࠊࢩࣜ࢝ࢼࣀ⢏Ꮚ࡜࢞ࣛࢫ⧄⥔࠿ࡽ࡞ࡿ᩿⇕ᮦ࡟ࡘ࠸࡚ࠊぶỈᛶࢩࣜ࢝⢏Ꮚࡢ୍㒊ࢆ␯Ỉᛶࢩࣜ࢝⢏Ꮚ࡟⨨ࡁ᥮࠼ࡓሙྜࡢ⇕ᣑᩓ⋡ࡢኚ໬ࢆࣇࣛࢵࢩࣗἲ࡟ࡼࡾㄪ࡭ࡓࠋ
㸰㸬◊✲᪉ἲ
ヨᩱࡣ᥋ྜ⛉Ꮫ◊✲ᡤ࡛ྜᡂࡋࠊ⇕ᣑᩓ⋡ࡢ ᐃࡣ⏘⥲◊࡟࠾࠸࡚⾜ࡗࡓࠋヨᩱࡣࢩࣜ࢝ࢼࣀ⢏Ꮚ࡜࢞ࣛࢫ⧄⥔ࡢཎᩱ⢊ࢆ Mechanical Processing ࡛ΰྜᚋ࡟ຍᅽᡂᙧࡋ࡚స〇ࡋࡓ」ྜᮦᩱࡢᯈᮦ࠿ࡽࣇࣛࢵࢩࣗἲࡢ ᐃ⏝࡟┤ᚄ 10 mm ෇ᯈ࡟ᡴࡕᢤ࠸࡚⏝ពࡋࡓࠋ⾲㸯࡟ࠊ᩿⇕ᮦࡢࢩࣜ࢝
ࢼࣀ⢏ᏊࡢぶỈᛶ㸸␯Ỉᛶࡢẚ⋡࠾ࡼࡧࢩࣜ࢝ࢼࣀ⢏Ꮚ࡜࢞ࣛࢫ⧄⥔ࡢ㓄ྜࠊᐦᗘࡢ௦⾲್ࢆࡲ࡜ࡵࡿࠋస
〇ࡉࢀࡓヨᩱࡢ෗┿ࡣᅗ㸯ࡢ㏻ࡾ࡛࠶ࡿࠋ
⇕ᣑᩓ⋡ ᐃ࡟⏝࠸ࡓࣇࣛࢵࢩࣗἲࡢ ᐃ⿦⨨ࡢᴫせཬࡧ ᐃ᮲௳➼ࡣୗグࡢ㏻ࡾ࡛࠶ࡿࠋ
࣭ࣃࣝࢫຍ⇕ග※㸸Nd;YAG ࣮ࣞࢨ㸦Ἴ㛗 1064 nmࠊࣃࣝࢫᖜ ್༙᫬㛫࡛⣙ 300ȣs㸧࣭ヨᩱ⿬㠃ࡢ ᗘኚ໬ほ 㸸㉥እᨺᑕィ㸦୰ᚰἼ㛗 4.8 ȣm㸧࣭ ᐃ᮲௳㸸ᐊ ࣭✵Ẽ୰࣭ ᗘୖ᪼᭤⥺ࡢゎᯒ᪉ἲ㸸Cape & Lehman ࡢᘧ[5,6]ཬࡧ➼㠃✚ἲ[7]࡟ࡼࡿ࣮࢝ࣈࣇ࢕ࢵࢸ࢕ࣥࢢ
࣭ࣃࣝࢫຍ⇕ᙉᗘࡣ㸯᮲௳࡛ 3 ᅇ⧞㏉ࡋ ᐃࡢᖹᆒ್ࢆ ᐃ⤖ᯝ࡜ࡋࡓࠋ
⾲㸯ᐃࡋࡓࢩࣜ࢝ࢼࣀ⢏Ꮚ᩿⇕ᮦࡢ⤌ᡂ

Sample Name

A

B

C

D

E

SiO2 powder [wt%](hydrophilic : hydrophobic)

75(100:0)75(95:5)

75(90:10)75(70:30)75(50:50)Glass-fiber [wt%]

25

25

25

25

25

375

345

364

344

353

3

Density [kg/m ]ᅗ㸯 ⇕ᣑᩓ⋡ᐃ⏝ヨᩱヨᩱࡣᅗ㸯ࡢࡼ࠺࡟ⓑⰍ࡛࠶ࡾࠊࣇࣛࢵࢩࣗἲࡢ ᐃ࡛⏝࠸ࡿ㏆㉥እ㹼㉥እἼ㛗ࡢගࡢ྾཰ࡀᅔ㞴࡛࠶ࡾ
࠿ࡘ㏱ගᛶࡀ࠶ࡿࡓࡵࠊ ᐃ࡟㝿ࡋ࡚ࡣ⾲㠃඲య࡟࣮࢝࣎ࣥࢫࣉ࣮ࣞ㸦᪥ᮏ⯪⯧ᕤල᭷㝈఍♫〇ࠊDry Graphite
Film Lubricant㸧ࢆሬᕸࡋࡓࠋࡇࡢヨᩱࡣ⇕ᣑᩓ⋡ࡀᴟࡵ࡚పࡃࠊヨᩱࡼࡾࡶ⇕ᣑᩓ⋡ࡀ㧗࠸࣮࢝࣎ࣥࢫࣉࣞ
࣮ሬᕸᒙࡢᙳ㡪ࡣ↓どࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋヨᩱࡢཌࡉࡣࠊ࣮࢝࣎ࣥࢫࣉ࣮ࣞࢆሬᕸࡍࡿ๓࡟ࣜࢽ࢔ࢤ࣮ࢪ࡛
1 ヨᩱ࠶ࡓࡾ 5 Ⅼ ᐃࡋࡓᖹᆒ್ࢆ⏝࠸ࡓࠋヨᩱࡀᑠࡉࡃಶయ㛫ࡢࡤࡽࡘࡁࡀ኱ࡁ࠸ࡇ࡜ࢆ⪃៖ࡋ࡚ࠊ⤌ᡂ− 187 −

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1RUPDOL]HGWHPSHUDWXUHULVHDUEXQLWVẖ࡟ 2㹼3 ಶࡢヨᩱࢆ ᐃࡋࡓࠋ ᗘୖ᪼᭤⥺࠿ࡽ⇕ᣑᩓ⋡ࢆồࡵࡿ㝿ࠊୖ㏙ࡢࡼ࠺࡟ࠊ⇕ᦆኻ⿵ṇࢆ⪃៖ࡋࡓ Cape & Lehman ࡢᘧ[5,6]ཬࡧ➼㠃✚ἲ[7]࡟ࡼࡿ࣮࢝ࣈࣇ࢕ࢵࢸ࢕ࣥࢢࢆ⏝࠸ࡓࠋ᫖ᖺᗘࠊᡃࠎࡣࡇࡢᡭἲ
࡜⇕ᦆኻࡢ⿵ṇಀᩘࢆ෭༷ࡢ᫬ᐃᩘ࠿ࡽồࡵ࡚⏝࠸ࡿᡭἲࡢ 2 ㏻ࡾࢆ᳨ウࡋࠊ࠸ࡎࢀࡢゎᯒᡭἲࢆ⏝࠸࡚ࡶ⤖ᯝࡀ࡯ࡰ୍⮴ࡋࠊ᭷ຠ࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋ࡚࠸ࡿࠋᅗ㸰࡟ほ ࡉࢀࡓ ᗘୖ᪼᭤⥺ࡢ౛ࢆ♧ࡍࠋ




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[
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[


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7LPHV

ᅗ㸰

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+\GURSKRELFVLOLFDFRQWHQWᗘୖ᪼᭤⥺ࡢ౛          ᅗ㸱 ␯Ỉᛶ⢏Ꮚࡢ⨨᥮⋡࡜⇕ᣑᩓ⋡㸱㸬◊✲⤖ᯝ࠾ࡼࡧ⪃ᐹࢩࣜ࢝ࢼࣀ⢏ᏊࡢぶỈᛶཬࡧ␯Ỉᛶࡢ㓄ྜ⋡ࢆኚ໬ࡉࡏࡓヨᩱࡢ⇕ᣑᩓ⋡ࡢ ᐃ⤖ᯝࢆᅗ㸱࡟♧ࡍࠋᐦᗘࡀᑠࡉ࠸ᮦᩱ࡛࠶ࡾࠊ኱ࡁ࠸ᯈᮦ࠿ࡽᡴࡕᢤ࠸ࡓᑠࡉ࠸ヨᩱ࡛ ᐃࡋ࡚࠸ࡿࡓࡵࠊྠࡌ⤌ᡂࡢヨᩱಶయ㛫࡛ࡢࡤࡽࡘࡁࡣᑠࡉࡃ࡞࠸ࡀࠊぶỈᛶࢩࣜ࢝ࢼࣀ⢏Ꮚࡢ୍㒊ࢆ␯Ỉᛶ⢏Ꮚ࡛⨨᥮ࡍࡿࡇ࡜࡛⇕ᣑᩓ⋡ࡀపୗࡍࡿ࡜ゝ࠼ࡿࠋ␯Ỉᛶࢩࣜ࢝ࢼࣀ⢏Ꮚࡢ᭷↓࡛⇕ᣑᩓ⋡ࡣኚ໬ࡍࡿࡀࠊ␯Ỉᛶ⢏Ꮚࡢ⨨᥮㔞ࢆቑຍࡉࡏ࡚ࡶ⇕ᣑᩓ⋡ࡀ᭦࡟పୗࡍࡿࡇ࡜ࡣ↓࠿ࡗࡓࠋࡇࢀࡽࡢ⤖ᯝࡣࠊ᫬ᮇࢆኚ࠼࡚ྜᡂࡋࡓヨᩱ࡛ࡶ෌⌧ࡋࡓࠋࡇࡢ᩿⇕ᮦࡢෆ㒊࡛ࡣࠊ࢞ࣛࢫ⧄⥔ࡣࢩࣜ࢝ࢼࣀ⢏Ꮚ࡛そࢃࢀࡓᵓ㐀࡜࡞ࡗ࡚࠸ࡿࠋぶỈᛶ⢏Ꮚࡢࡳࡢሙ
ྜࡣࠊ࢞ࣛࢫ⧄⥔⾲㠃ࡢࢩࣜ࢝⢏Ꮚᒙࡣཌ࠸ࡀࠊ␯Ỉᛶ⢏Ꮚࡀΰධࡋࡓሙྜࡣࢩࣜ࢝⢏Ꮚᒙࡀⷧࡃ࡞ࡿࡇ࡜ࡀほᐹࡉࢀࠊぶỈᇶ࡜␯Ỉᇶࡢ㐪࠸࡛ࢩࣜ࢝ࢼࣀ⢏Ꮚྠኈࡢ⤖ྜࡀ␗࡞ࡿࡇ࡜ࡀᣦ᦬ࡉࢀ࡚࠸ࡿ[7]ࠋᐊ ௜㏆࡛ࡣࣇ࢛ࣀࣥ࡟ࡼࡿ⇕ఏᑟࡀᨭ㓄ⓗ࡛࠶ࡿࠋࣇ࢛ࣀࣥࡣ⢏Ꮚ⏺ࡸ⏺㠃ࠊḞ㝗➼࡛ᩓ஘ࡉࢀࠊࡑࢀࡽ࡟ࡼࡾ
⇕ఏᑟࡀపୗࡍࡿࠋ␯Ỉᛶ⢏Ꮚ࡟ࡼࡾ⢏Ꮚ㛫ࡢ⤖ྜࡀᙅࡃ࡞ࡿ࡜ࠊ⇕ఏᑟᛶࡣᝏࡃ࡞ࡿࡇ࡜ࡀண᝿ࡉࢀࠊ௒
ᅇ␯Ỉᛶ⢏Ꮚࢆධࢀࡿࡇ࡜࡟ࡼࡗ࡚⇕ᣑᩓ⋡ࡀపୗࡋࡓ⌧㇟࡜ᐃᛶⓗ࡟୍⮴ࡍࡿࠋ㸲㸬⤖ㄽ ࢩࣜ࢝ࢼࣀ⢏Ꮚ࡜࢞ࣛࢫ⧄⥔ࡢ」ྜ᩿⇕ᮦࡢ⇕ᣑᩓ⋡ ᐃࢆࣇࣛࢵࢩࣗἲ࡟ࡼࡾ⾜ࡗࡓࠋ᩿⇕ᮦࡢ⇕ᣑᩓ⋡ࡣࠊぶỈᛶࢩࣜ࢝ࢼࣀ⢏Ꮚࡢ୍㒊ࢆ␯Ỉᛶࢩࣜ࢝ࢼࣀ⢏Ꮚ࡛⨨᥮ࡍࡿࡇ࡜࡟ࡼࡾపୗࡍࡿഴྥࡀ࠶ࡿࡇ࡜
ࡀศ࠿ࡗࡓࠋ௒ᅇࡢ⤖ᯝࡣᐃᛶⓗ࡛࠶ࡾࠊ௒ᚋࡣᐃ㔞ᛶࡢ᳨ウࡸ⇕ᣑᩓ⋡పୗࡢᶵᵓ࡟ࡘ࠸࡚ㄪ࡭ࡓ࠸ࠋ
㸳㸬ཧ⪃ᩥ⊩[1] JIS 1412-1:1999” ⇕⤯⦕ᮦࡢ⇕᢬ᢠཬࡧ⇕ఏᑟ⋡ࡢ ᐃ᪉ἲ̿➨㸯㒊㸸ಖㆤ⇕ᯈἲ㸦GHP ἲ㸧”(1999).
[2] W. J. Parker, R. J. Jenkins, C. P. Butler, and G. L. Abbott, J. Appl. Phys., 32 (1961) 1679.
[3] T. W. Lian, A. Kondo, M. Akoshima, H. Abe, T. Ohmura, W. H. Tuan, M. Naito, Advanced Powder Technology㸪
Advanced Powder Technology, 27 (2016) 882.
[4] J. A. Cape and G. W. Lehman, J. Appl. Phys., 34-7 (1963) 1913.
[5] D. Josell, J. Warren, A. Cezairliyan, J. Appl. Phys., 78-11 (1995) 6867.
[6] JIS R 1611:2010 “ࣇ࢓࢖ࣥࢭ࣑ࣛࢵࢡࢫࡢࣇࣛࢵࢩࣗἲ࡟ࡼࡿ⇕ᣑᩓ⋡࣭ẚ⇕ᐜ㔞࣭⇕ఏᑟ⋡ࡢ ᐃ᪉ἲ”(2010).
[7] T. W. Lian, A. Kondo, T. Kozawa, M. Akoshima, H. Abe, T. Ohmura, W. H. Tuan, M. Naito, Journal of Asian
Ceramic Societies, (2017) in press.

                    (ඹྠ◊✲ศ㔝: ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝)− 188 −

ከᏍ㉁ᮦᩱࡢ⇕≀ᛶホ౯㸦ᅜ◊㸧⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ ≀㉁ィ ᶆ‽◊✲㒊㛛
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1.

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ከᏍ㉁ᮦᩱ࡜ࡣࡑࡢෆ㒊࡟ከᩘࡢᚤ⣽࡞Ꮝࢆࡶࡘᅛయࡢ⥲⛠࡛࠶ࡾࠊᏍࡢ࡞࠸⦓ᐦ࡞ᅛయ࡜ࡣ✀ࠎ␗࡞ࡿ
ᛶ㉁ࢆࡶࡘࠋࡑࡢ≉␗࡞ᛶ㉁ࢆ฼⏝ࡋ࡚ࠊ⪏ⅆ≀ࡸ᩿⇕ᮦࠊ⦆⾪ᮦࠊ྾㡢ᮦࠊ࠶ࡿ࠸ࡣ྾╔ᮦ࡜ࡋ࡚ከ᪉㠃࡟ࢃࡓࡗ࡚౑⏝ࡉࢀ࡚࠸ࡿࡀࠊ≉࡟㏆ᖺ࡛ࡣࠊప⇕ఏᑟ⋡ࢆ᭷ࡍࡿᮦᩱࡀᩘከࡃ㛤Ⓨࡉࢀ࡚࠸ࡿࠋᅛయࡢ⇕ఏᑟ⋡ࡢホ౯ἲ࡜ࡋ࡚ࡣࠊ୺࡟ಖㆤ⇕ᯈἲࠊ⇕ὶィἲ࡞࡝ࡀ⏝࠸ࡽࢀࡿࡀࠊ⇕ᣑᩓ⋡ẚ⇕࠿ࡉᐦᗘ࠿ࡽ
⟬ฟ࡛ࡁࡿࡇ࡜ࡶ▱ࡽࢀ࡚࠾ࡾࠊప࠸⇕ఏᑟ⋡ᮦᩱ࡟ࡶᚋ⪅ࡢ᪉ἲࡀ㐺⏝࡛ࡁࡿ࠿࡝࠺࠿ࡀࠊㄢ㢟ࡢࡦ࡜ࡘ࡜࡞ࡗ࡚࠸ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ᫖ᖺᗘ࡟ᘬࡁ⥆ࡁࠊ⇕ఏᑟ⋡ࢆỴᐃࡍࡿ≀⌮㔞ࡢࡦ࡜ࡘ࡛࠶ࡿẚ⇕࡟ὀ┠ࡋࠊప⇕ఏᑟ⋡ᮦᩱ࡛࠶ࡿ࢞ࣛࢫ⧄⥔/ࣇ࣮࣒ࣗࢻࢩࣜ࢝」ྜከᏍయࡢẚ⇕ ᐃ࡟ࡘ࠸࡚ࡢホ౯ࢆ⾜࡞ࡗࡓࠋ᫖ᖺᗘࡣࠊぶỈᛶཪࡣ␯Ỉᛶࢩࣜ࢝ࢆ⏝࠸࡚స〇ࡋࡓ 2 ✀㢮ࡢ」ྜከᏍయࡢẚ⇕ ᐃࢆ⾜࡞ࡗࡓࡀࠊࡑࢀࡽࡢ ᐃ್࡟ࡣᩥ⊩➼ࡢཧ⪃್ࡀᏑᅾࡋ࡞࠸ࡓࡵࠊጇᙜᛶࢆ☜ㄆࡍࡿ࡟⮳ࡽ࡞࠿ࡗࡓ[1]ࠋࡑࡇ࡛௒ᖺᗘࡣࠊ⣲ᮦู࡟ẚ⇕ ᐃࢆ⾜࠸ࠊࡑࡢ⤖ᯝ࠿ࡽ」ྜከᏍయࡢẚ⇕ࢆ⟬ฟࡋࠊ᫖ᖺᗘࡢ⤖ᯝ࡜ࡢẚ㍑ࢆヨࡳࡓࠋ
2.

ᐃヨᩱ࠾ࡼࡧ ᐃ᪉ἲẚ⇕ ᐃ࡟ࡣࠊ♧ᕪ㉮ᰝ⇕㔞ἲ㸦Differential Scanning Calorimetry :௨ୗ DSC㸧ࢆ⏝࠸ࡓࠋDSC ἲࡣࠊ ᗘࢆ୍ᐃࡢࣉࣟࢢ࣒ࣛ࡟ᚑࡗ࡚ኚ໬ࡉࡏ࡞ࡀࡽࠊẚ⇕್ࡀ᪤▱ࡢᇶ‽≀㉁࡜ࡢධຊ࢚ࢿࣝࢠ࣮ᕪࢆ ᐃࡍࡿẚ㍑
ᐃἲ࡜ࡋ࡚▱ࡽࢀ࡚࠾ࡾࠊẚ㍑ⓗ⡆౽࡟ ᐃヨᩱࡢẚ⇕ࢆồࡵࡿࡇ࡜ࡀ࡛ࡁࡿࠋ ᐃࣉࣟࢢ࣒ࣛࡣࠊJIS
R1672[2]࡟ᚑ࠸ࠊ➼ 㐣⛬Ѝ➼㏿᪼ 㐣⛬Ѝ➼ 㐣⛬࡛ᵓᡂࡉࢀࠊ➼ 㐣⛬ 10 ศࠊ➼㏿᪼ ㏿ᗘ 10 ཪࡣ 20
K / minࠊ ᗘ⠊ᅖࡣ 300㹼600 K ࡜ࡋࡓࠋ ᐃ⿦⨨࡟ࡣཧ↷ഃ࡜ヨᩱഃ࡜࿧ࡤࢀࡿ஧ࡘࡢᐜჾ࣍ࣝࢲ࣮ࡀ࠶ࡾࠊ
ᐃヨᩱࡢ⇕ᐜ㔞ࢆồࡵࡿࡓࡵ࡟ࡣࠊཧ↷࣍ࣝࢲ࣮ഃࡣ✵ࡢヨᩱᐜჾࡢࡳࡢ≧ែ࡛ࠊヨᩱ࣍ࣝࢲ࣮ഃ࡟ ձ ✵ᐜჾࠊղ ᐜჾ㸩ᇶ‽≀㉁ࠊճ ᐜჾ㸩 ᐃヨᩱࠊࢆࢭࢵࢺࡋࡓ 3 ᐃࢆྠ᮲௳࡛⾜࠺ࠋ࣮࣋ࢫࣛ࢖ࣥࡢ⿵ṇᚋࠊ ᐃղ ࠿ࡽ ᐃձ ࡢ⇕ὶ್ࢆᕪࡋᘬࡃࡇ࡜࡟ࡼࡾᇶ‽≀㉁ࡢ⇕ὶ್ࢆồࡵࠊ ᐃճ ࠿ࡽ ᐃձ ࡢ⇕ὶ್ࢆᕪࡋᘬࡃࡇ࡜࡟ࡼࡾࠊ ᐃヨᩱࡢ⇕ὶ್ࢆồࡵࡿࠋࡇࡢ஧ࡘࡢ⇕ὶ್ࡢẚ㍑࠿ࡽࠊ࠶ࡿ ᗘ T ࡛ࡢ⇕ᐜ㔞ࢆ⟬ฟࡋࠊ ᐃヨᩱࡢ㉁㔞ࢆ⏝࠸࡚ẚ⇕ࢆᚓࡿࠋᮏ◊✲ࡢ ᐃᑐ㇟࡛࠶ࡿ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ࡛㛤
Ⓨࡉࢀࡓ᪂ࡋ࠸ప⇕ఏᑟ⋡ᮦᩱࡣࠊぶỈᛶཪࡣ␯Ỉᛶࢩࣜ࢝࡜࢞ࣛࢫ⧄⥔࡜ SiC ⢊య࡛స〇ࡉࢀࡓ」ྜከᏍ
య࡛࠶ࡿࠋ௒ᅇࡣࠊࡑࢀࡒࢀࡢ⣲ᮦࢆಶู࡟ྠࡌ᮲௳ୗ࡛ ᐃࡋࡓࠋぶỈᛶࠊ␯Ỉᛶࢩࣜ࢝ࢆ⏝࠸ࡓヨᩱࢆࡑࢀࡒࢀ Sample AࠊSample B ࡜ࡋ࡚ࠊࡑࡢ⣲ᮦࡢヲ⣽ࢆ Table1 ࡟♧ࡍࠋ4 ✀㢮ࡢ⣲ᮦࡣࡑࢀࡒࢀ࢔࣑ࣝࢽ࢘
࣒〇ࡢヨᩱᐜჾ࡟ᑒࡌࠊ⇕ᐜ㔞ᶆ‽≀㉁ NIST SRM720㸦ྜᡂࢧࣇ࢓࢖࢔㸧࡟ࢺ࣮ࣞࢧࣈࣝ࡞ࢧࣇ࢓࢖࢔ࢆᇶ‽≀㉁࡜ࡋ࡚ ᐃࡋࡓࠋ
Table 1ᐃヨᩱ

Sample Aࢩࣜ࢝࢞ࣛࢫ⧄⥔
SiC ⢊య
ΰྜẚ (%)

Sample B
2

Aerosil 300㻌 (Specific surface area 䠖300 m /g㻌
Average diameter䠖10 nm )2

Aerosil R812㻌 (Specific surface area 䠖250 m /g㻌
Average diameter䠖12 nm )I10 ȝm×3 mmL
Average diameter : 3.3 ȝmࢩࣜ࢝ 㸸 ࢞ࣛࢫ⧄⥔ 㸸 SiC 㸻 60 㸸 20 㸸 203.ᐃ⤖ᯝࡇࢀࡲ࡛ࡢ ᐃ⤖ᯝ࠿ࡽࠊ」ྜከᏍయࡢึᅇ ᐃ࡟࠾࠸࡚ 80㹼100 Υ௜㏆࡛྾⇕ࣆ࣮ࢡࡀ⌧ࢀ࡚࠸ࡓࡀࠊ
᫂☜࡞⌮⏤ࡣ୙᫂ࡔࡗࡓ[3]ࠋ௒ᅇࠊ⣲ᮦẖ࡟ึᅇ࡜ 2 ᅇ┠ࡢ ᐃࢩࢢࢼࣝࢆ☜ㄆࡋࡓ࡜ࡇࢁࠊ␯Ỉᛶࢩࣜ࢝ࠊ
࢞ࣛࢫ⧄⥔ࠊSiC ⢊య࡛ࡣ࡯࡜ࢇ࡝ኚ໬ࡣ࡞ࡃࠊぶỈᛶࢩࣜ࢝ࡢึᅇ ᐃࡢࡳ࡟ࠊ80㹼100 Υ௜㏆࡛ࠊ྾⇕ࣆ࣮ࢡࡀほ ࡉࢀࡓࠋFig. 2 ࡟ぶỈᛶ࡜␯Ỉᛶࢩࣜ࢝ࡢ ᐃ౛ࢆ♧ࡍࠋᚑࡗ࡚ࠊࡇࢀࡲ࡛࡟⌧ࢀ࡚࠸ࡓ྾⇕ࣆ࣮ࢡࡣ୺࡟ぶỈᛶࢩࣜ࢝࡬ࡢỈศ྾╔࡟㉳ᅉࡍࡿࡶࡢ࡛࠶ࡿ࡜ண᝿ࡉࢀࡿࠋࡉࡽ࡟ࠊ ᐃ๓ᚋ࡛ぶỈᛶࢩࣜ
࢝ࡢ㉁㔞ῶᑡࡶ☜ㄆࡉࢀࡓࡇ࡜࠿ࡽࠊぶỈᛶࢩࣜ࢝ࢆྵࡴヨᩱ ᐃ᫬࡟ࡣࠊ2 ᅇ┠ࡢ ᐃࢹ࣮ࢱࢆ᥇⏝ࡍࡿ
࡜ඹ࡟㉁㔞⿵ṇࢆ⾜࡞࠺ࡇ࡜ࡀᚲせ࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ

− 189 −    Fig. 1 ྾⇕ࣆ࣮ࢡࡢ☜ㄆ౛          Fig. 2 ࡟ࠊ⣲ᮦูࡢ ᐃ⤖ᯝࢆ♧ࡍࠋぶỈᛶࢩࣜ࢝࡟ࡘ࠸࡚ࡣࠊ㉁㔞⿵ṇᚋࡢ⤖ᯝࢆࣉࣟࢵࢺࡋࡓࠋ ᐃࡣྛ⣲ᮦ 3 ᅇ⧞ࡾ㏉ࡋ࡚⾜࠸ࠊᖹᆒ್ࢆ ᐃ್࡜ࡋࡓࠋ࢞ࣛࢫ⧄⥔࡜ SiC ⢊యࡢ ᐃ್ࡣẚ㍑ⓗࡤࡽࡘࡁࡶᑡ࡞ࡃࠊ ᐃࡣⰋዲ࡛࠶ࡗࡓࠋぶỈᛶ࡜␯Ỉᛶࢩࣜ࢝࡟ࡘ࠸࡚ࡣࠊヨᩱᐜჾ࡟ワࡵࡽࢀࡿ㔞ࡀᑡ࡞࠸ࡓࡵࠊ
ᐃࢩࢢࢼࣝࡶᑠࡉࡃ࡞ࡿࡇ࡜࠿ࡽࠊ ᐃࡢࡤࡽࡘࡁࡀ኱ࡁ࠸⤖ᯝ࡜࡞ࡗࡓࠋFig. 3 ࡟ࠊ」ྜከᏍయࡢ┤᥋ ᐃ࠿ࡽᚓࡽࢀࡓᐇ ್㸦‫ڦࠊە‬㸧࡜ࠊ⣲ᮦู ᐃ࠿ࡽ⟬ฟࡉࢀࡓ᥎ᐃ್㸦‫ڧࠊۑ‬㸧ࠊࡑࡋ࡚ྛ⣲ᮦࡢᩥ⊩࠿ࡽ⟬ฟࡋࡓཧ⪃್㸦‫ࠊڸ‬300 K ࡢࡳ㸧ࢆ♧ࡍࠋ3 ࡘࡢ⤖ᯝࡣࠊᴫࡡ 6 㸣ࡢ⠊ᅖෆ࡛࠶ࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋ+\GURSKLOLFVLOLFDBVLPSOHBPDVVFRUUHFWLRQ+\GURSKRELFVLOLFDBVLPSOH*ODVVILEHU
6L&SRZGHU

6SHFLILFKHDWFDSDFLW\-. J

6SHFLILF+HDW&DSDFLW\-. J

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6DPSOH$6DPSOH%
5HIHUHQFHGDWD
6DPSOH$BHVWLPDWH +\GURSKLOLFVLOLFD
6DPSOH%BHVWLPDWH +\GURSKRELFVLOLFDFig. 2 ⣲ᮦู ᐃ⤖ᯝ

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7HPSHUDWXUH.

       Fig. 3 ẚ⇕್ࡢẚ㍑    4㸬⤖⤖ゝప⇕ఏᑟ⋡ᮦᩱ࡜ࡋ࡚ࠊぶỈᛶཪࡣ␯Ỉᛶࢩࣜ࢝ࢆ⏝࠸ࡓ␗࡞ࡿ 2 ✀㢮ࡢ」ྜከᏍయࢆ㛤ⓎࡋࠊDSC ἲࢆ⏝࠸ࡓẚ⇕ᐜ㔞ホ౯ࢆ⾜࡞ࡗࡓࠋ」ྜከᏍయࢆᵓᡂࡍࡿ 4 ✀㢮ࡢ⣲ᮦࡢಶู ᐃࢆᐇ᪋ࡋࠊࡑࡢ⤖ᯝ࠿ࡽ」ྜከᏍయࡢẚ⇕್ࢆ᥎ᐃࡋࡓࠋࡇࡢ᥎ᐃ್࡜ࠊ」ྜከᏍయࡢᐇ ್ࢆẚ㍑ࡋࡓ࡜ࡇࢁࠊᴫࡡ 6 㸣௨ෆ୍࡛⮴ࡍࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ300 K ࡟࠾࠸࡚ࡣࠊᩥ⊩࠿ࡽࡢཧ⪃್࡜ࡶẚ㍑ࡋࡓ࡜ࡇࢁࠊᮏ⤖ᯝ࡜Ⰻ࠸ᑐᛂࢆ♧
ࡋࡓࠋ
ཧ⪃ᩥ⊩
[1] 㜿㒊㝧㤶, ኱㜰኱Ꮫ ᥋ྜ⛉Ꮫඹྠ฼⏝࣭ඹྠ◊✲ᣐⅬ ඹྠ◊✲ሗ࿌᭩㸦2015㸧201-202.
[2] JIS R 1672: 2006, 㛗⧄⥔ᙉ໬ࢭ࣑ࣛࢵࢡࢫ」ྜᮦᩱࡢ♧ᕪ㉮ᰝ⇕㔞ἲ࡟ࡼࡿẚ⇕ᐜ㔞 ᐃ᪉ἲ.
[3] 㜿㒊㝧㤶, 㜿Ꮚᓥࡵࡄࡳ, Tseng-Wen Lian, ㏆⸨ ග, ෆ⸨∾⏨, ➨ 52 ᅇ⇕ ᐃウㄽ఍ㅮ₇せ᪨㞟㸦2016㸧
87.
(ඹྠ◊✲ศ㔝: ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝)− 190 −

ᚤ⢏Ꮚ㸪ࢼࣀ⢏Ꮚࡢᵓ㐀ไᚚ࡜≉ᛶホ౯㉸ప⇕ఏᑟᮦᩱࡢ⇕≀ᛶホ౯࿴ḷᒣᕤᴗ㧗➼ᑓ㛛Ꮫᰯ ▱⬟ᶵᲔᕤᏛ⛉኱ᮧ 㧗ᘯ
1. ⥴ ゝ㏆ᖺࡢ┬࢚ࢿࣝࢠ࣮ᑐ⟇࡟ࡼࡾ㸪⮬ື㌴ࡸ㕲㗰㸪㟁Ꮚ㒊ရ㸪༙ᑟయ࡞࡝㸪᪥ᮏࡢ୰ᚰⓗ࡞⏘ᴗศ㔝࡛ࡣ㸪⇕※࠿ࡽࡢ⇕ᦆኻࢆዴఱ࡟ῶࡽࡍ࠿࡜࠸࠺◊✲ㄢ㢟࡟㔜Ⅼࡀ⨨࠿ࢀࡿࡼ࠺࡟࡞ࡗࡓ㸬୰࡛ࡶᕤᴗ⅔ࡸᐙ㟁〇ရ㸪ᘓ≀࡞࡝ࡢ⾲㠃࠿ࡽࡢᨺᩓ⇕㔞ࢆపῶࡉࡏࡿࡓࡵࡢάືࡣ㸪㔜せ࡞఩⨨௜ࡅ࡟࡞ࡗ࡚࠸ࡿ㸬ࡇࡢࡼ࠺࡞
≧ἣࡢ୰㸪ὀ┠ࢆᾎࡧ࡚࠸ࡿࡢࡀࢼࣀ⢏Ꮚࢆ౑ࡗࡓ᩿⇕ᮦ࡛࠶ࡿ㸬1000Υࡲ࡛౑⏝ྍ⬟࡞ࡶࡢࡸ 1, 2)㸪ᩘⓒᗘࡢ ᗘ㡿ᇦ࡛⇕ఏᑟ⋡ࡀ 0.02W/(m㺃K)௨ୗࡢࡶࡢࡲ࡛ሗ࿌ࡉࢀ࡚࠸ࡿ 3)㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ࡇࢀࡽࡢ⇕ఏᑟ⋡࡟ᑐࡍࡿホ౯㸪≉࡟ᐊ ௜㏆࡛ࡢホ౯౛ࡣ࡯࡜ࢇ࡝↓࠸㸬ࡑࡢཎᅉࡣ㸪ᕤᴗ⅔࡛ࡢ౑⏝ࡀከ࠸ࡓࡵ㸪㧗 㡿ᇦ࡟࠾ࡅࡿ⇕ఏᑟ⋡ࡀ㔜せどࡉࢀ࡚࠸ࡿࡓࡵ࡛࠶ࡿ㸬ࡋ࠿ࡋ㸪ᐇ㝿࡟ࡣᐊ ௜㏆࠿ࡽ౑⏝ࡉࢀࡿࡇ࡜ࡀከࡃ㸪ࡉࡽ࡟ぶỈᛶࢼࣀ⢏Ꮚᮦᩱࢆ౑⏝ࡋ࡚࠸ࡿ᩿⇕ᮦࡀ୺ὶ࡛࠶ࡾ㸪ࡑࡢࡓࡵ 100Υ௜㏆࡛ࡢỈ࡟ࡼࡿ⇕ఏᑟ⋡ࡢ኱ࡁ࡞ኚ໬ࡀၥ㢟࡜࡞ࡗ࡚࠸ࡿ㸬Ỉศࡀ⇕ఏᑟ⋡࡟ᑐࡋ࡚࡝ࡢ⛬ᗘᙳ㡪ࡍࡿࡢ࠿࡟ࡘ࠸࡚ࡣ㸪༑ศ࡞᳨ウࡣ࡞ࡉࢀ࡚࠸࡞࠸ࡢࡀᐇ≧࡛࠶ࡾ㸪ࡉࡽ࡟㸪⾲㠃࠿ࡽࡢᨺᩓ⇕㔞࡟኱ࡁࡃᙳ㡪ࡍࡿ⇕ఏ㐩⋡ࡢ ᐃ࡟ࡘ࠸࡚
ࡣ㸪࡯࡜ࢇ࡝ሗ࿌౛ࡀ↓࠸㸬ࡑࡇ࡛㸪ᖹᡂ 27 ᖺᗘ࡟ࡣ⇕ఏᑟ⋡࡜⇕ఏ㐩⋡ࢆྠ᫬࡟ ᐃ࡛ࡁࡿ⿦⨨ࢆ㛤Ⓨࡋ㸪ࢼࣀ⢏Ꮚ/⧄⥔」ྜᮦᩱࡢ᩿⇕ᛶ⬟ࢆ᳨ウࡋࡓ 4)㸬ࡓࡔࡋ㸪 ᐃ ᗘ⠊ᅖࡀᐊ ࠿ࡽ 80Υ⛬ᗘࡲ࡛࡛࠶ࡾ㸪Ỉศࡢ⵨Ⓨࡀ⇕ఏᑟ⋡࡟୚࠼ࡿᙳ㡪ࢆ༑ศ࡟᳨ウ࡛ࡁ࡞࠿ࡗࡓ㸬ࡑࡢᑐ⟇ࢆྵࡵ࡚㸪௒ᖺᗘࡣ᪂ࡋ࠸ ᐃ᪉ἲࢆᥦ᱌ࡋ㸪80Υ௨ୖ࡛㸪⡆༢࠿ࡘṇ☜࡟⇕ఏᑟ⋡ࢆ ᐃ࡛ࡁࡿ⿦⨨ࢆ㛤Ⓨࡋ㸪ᨵࡵ࡚ぶỈᛶࢼࣀ⢏Ꮚ᩿⇕ᮦࡢ⇕ఏᑟ⋡ ᐃࢆᐇ᪋ࡋࡓ㸬
2.ᐃཎ⌮࠾ࡼࡧ ᐃ᪉ἲᮏ◊✲࡛ࡣ㸪᪂ࡓ࡞ᐃᖖἲ࡟࠾ࡅࡿ⇕ఏᑟ⋡ ᐃ᪉ἲࢆᥦ᱌ࡋࡓ㸬௨ୗ࡟㸪 ᐃཎ⌮ࢆ♧ࡍ㸬ຍ⇕ഃࣄ࣮ࢱ࡛Ⓨ⏕ࡋࡓ⇕㔞 Q ࡀ඲࡚ヨ㦂యෆ࡟ὶධࡋ㸪ࡋ࠿ࡶ㸪ࡑࡢ⇕㔞 Q ࡀヨ㦂యࡢཌࡉ᪉ྥ࡟ὶࢀ
ࡿ⇕㔞 Qt ࡜㸪ヨ㦂యෆ㒊࡛ཌࡉ᪉ྥ௨እࡢ᪉ྥ࡬ᨺᩓࡍࡿ⇕㔞 Qloss ࡢ࿴࡛࠶ࡿ࡜௬ᐃࡍࡿ࡜㸪

Q Qt  Qloss         (1)࡛⾲ࡉࢀࡿ࡜ࡍࡿ㸬 ヨ㦂యࡢཌࡉ᪉ྥ࡟ὶࢀࡿ⇕㔞 Qt ࡟ࡣ㸪ࣇ࣮࢚ࣜࡢἲ๎ࡀ㐺⏝࡛ࡁ㸪

Qt

Ot

'T
d

S

         (2)࡜⾲ࡍࡇ࡜ࡀ࡛ࡁࡿ㸬ࡇࡇ࡛㸪d ࡣヨ㦂యࡢཌࡉ[m]㸪Qt ࡣヨ㦂యࢆ㏻㐣ࡍࡿ⇕㔞[W]㸪S ࡣ⇕ὶ㏻㐣㠃✚[m2]㸪
ǻș ࡣヨ㦂యࡢ

ᗘᕪ[K]࡛࠶ࡿ㸬ࡲࡓ㸪ヨ㦂యࡢຍ⇕㠃ഃ࡟᥋ゐࡍࡿࣄ࣮ࢱ࠿ࡽヨ㦂య࡬ὶධࡍࡿ⇕㔞 Q ࡣ㸪ࣇ࣮࢚ࣜࡢἲ๎࡜ྠࡌᙧᘧࡢ
ᘧ࡛⾲ࡉࢀࡿࡶࡢ࡜ࡋ࡚㸪ಀᩘࢆ Ȝ ࡜ࡍࡿ࡜㸪

Q

O

'T
d

S

         (3)࡜⾲ࡉࢀࡿ㸬
୍᪉㸪⇕ᦆኻ Qloss ࡣ㸪㠃ෆ᪉ྥࢆ௦⾲ࡍࡿ ᗘᕪࢆ ǻșloss ࡜ࡍࢀࡤ㸪㠃ෆ᪉ྥࡢ⇕ࢥࣥࢲࢡࢱࣥࢫ H ࡜ࡢ✚࡛⾲ࡉࢀ㸪Qloss

H  'Tloss         (4)࡜࡞ࡿ㸬ᘧ(1)࡟ᘧ(2), (3), (4)ࢆ௦ධࡋኚᙧࡍࡿ࡜ḟᘧࡀᚓࡽࢀࡿ㸬       O

Ot  a  4

    (5)ࡇࡇ࡛㸪ಀᩘ a ࢆᘧ(6)ࡢࡼ࠺࡟࠾ࡁ㸪ࡲࡓ㸪ヨ㦂యࡢཌࡉ᪉ྥࡢ ᗘᕪ࡟ᑐࡍࡿ㠃ෆ᪉ྥࡢ௦⾲ẚ 4 㸦↓ḟඖ ᗘኚᩘ㸧ࢆᘧ(7)࡜࠾࠸ࡓ㸬− 191 −

ᗘᕪ࡜ࡢ

a

H d
 (6)        4
S'T loss'T(7) ᘧ(5)ࡼࡾ㸪↓ḟඖ ᗘኚᩘȀ࡜ಀᩘ Ȝ ࡣ┤⥺ⓗ࡞㛵ಀࢆࡶࡘࡇ࡜ࡀศ࠿ࡿ㸬ࡑࡇ࡛㸪ヨ㦂యୖୗࡢ ᗘᕪǻș ࢆ」ᩘᅇኚ໬ࡉࡏ࡚ᘧ(3)࡟♧ࡍಀᩘ Ȝ ࢆ ᐃࡋ㸪ࡑࡢ࡜ࡁࡢヨ㦂య⾲㠃㸦ᮏ◊✲࡛ࡣ㧗 ഃࡢ⾲㠃㸧ࡢᗘศᕸ࠿ࡽ ǻșloss ࢆồࡵ࡚↓ḟඖ ᗘኚᩘȀࢆᑟࡁ㸪ᶓ㍈࡟↓ḟඖ ᗘኚᩘȀ㸪⦪㍈࡟ᘧ(3)ࡢಀᩘ Ȝ ࢆࣉࣟࢵࢺࡋ㏆ఝ┤⥺ࢆᥥࡃ㸬ࡑࡢ┤⥺ࡢษ∦ࡀヨ㦂యࡢཌࡉ᪉ྥࡢ⇕ఏᑟ⋡ Ȝt ࡜࡞ࡿ㸬

3. ⇕ఏᑟ⋡ ᐃ⿦⨨ᮏ⿦⨨࡛ࡣ㸪ヨ㦂యࡢ∦㠃(ୗഃ㠃)ࢆࢭ࣑ࣛࢵࢡࣄ࣮ࢱ(ࣄ࣮ࢱ 1)࡛㸪ୖഃ㠃ࢆࣛࣂ࣮ࣄ࣮ࢱ࡛ࡑࢀࡒࢀຍ
⇕ࡋ㸪୧㠃࡛⏕ࡌࡓ ᗘᕪ࡜ヨ㦂యࢆὶࢀࡿ⇕ὶ㔞࠿ࡽࣇ࣮࢚ࣜࡢἲ๎࡜ྠࡌᙧࢆࡋࡓᘧࢆ⏝࠸࡚ࡑࡢಀᩘ
ࢆồࡵ࡚࠸ࡿ㸬ࡑࡢ㝿㸪ࣄ࣮ࢱ 1 ࡢୗഃ࡟ࡶࢭ࣑ࣛࢵࢡࣄ࣮ࢱ㸦ࣄ࣮ࢱ 2㸧ࢆタ⨨ࡋ㸪ࣄ࣮ࢱ 1 ࡢຍ⇕㠃࡜ྠࡌ ᗘ࡟࡞ࡿࡼ࠺࡟ฟຊࢆไᚚࡋ㸪ࣄ࣮ࢱ 1 ࡛⏕ࡌࡓ⇕࢚ࢿࣝࢠ࣮ࡀ㸪ୗഃ࡬ὶฟࡋ࡞࠸ࡼ࠺࡞ᵓ㐀࡜ࡋ࡚࠸ࡿ㸬⿦⨨ࡢእほ෗┿ࢆᅗ 1 ࡟♧ࡍ㸬

Fig. 1New measurement apparatus4.
ᐃ⤖ᯝ࡜⪃ᐹ
4.1 ヨ㦂య2 ✀㢮ࡢࢼࣀ⢏Ꮚ᩿⇕ᮦ㸦ࢼࣀ⢏Ꮚ/⧄⥔」ྜᮦᩱ㸧ࢆヨ㦂య࡜ࡋࡓ㸬ཌࡉ࡜࠿ࡉᐦᗘࢆ⾲ 1 ࡟♧ࡍ㸬
Table 1 Properties of Fumed silica compacts
Thickness [mm]Bulk density [kg/m3]
Fumed silica 1
11.56
391
Fumed silica 2
10.15
382
4.2 ⇕ఏᑟ⋡ᅗ 2 ࡟ヨ㦂యࡢᖹᆒ ᗘ ș ࡜⇕ఏᑟ⋡ Ȝ ࡢ㛵ಀࢆ♧ࡍ㸬ᅗ୰ࡢ୸༳㸪୕ゅ༳㸪ᅄゅ༳㸪㯮Ⰽࡢ㏫୕ゅ༳ࡀ㸪ࡑࢀࡒࢀ᫖ᖺᗘ࡟㛤Ⓨࡋࡓ⿦⨨ 4)㸪⇕ὶィἲ࡟ᇶ࡙ࡃ⿦⨨㸦ⱥᘯ⢭ᶵ〇㸧㸪࿘ᮇຍ⇕ἲ 5)㸪௒ᅇ㛤
Ⓨࡋࡓ⿦⨨࡟ࡼࡿ ᐃ⤖ᯝ࡛࠶ࡿ㸬ᐇ⥺ࡣ࿘ᮇຍ⇕ἲ࡟ࡼࡾ ᐃࡉࢀࡓ 300Υ௨ୖࡢ⤖ᯝ࠿ࡽᚓࡽࢀࡓ
⇕ఏᑟ⋡ Ȝ ࡢ᥎ᐃᘧ࡛࠶ࡾ㸪ḟᘧ࡛⾲ࡉࢀࡿ㸬ࡲࡓ㸪◚⥺ࡣᐇ⥺࡟ᑐࡍࡿs10%ࡢ್࡛࠶ࡿ㸬
2.76u109 3
O 4.30u105 U 
T  0.0091             (8)U

3ࡇࡇ࡛㸪T ࡣヨ㦂యࡢᖹᆒ ᗘ[K]㸪ȡ ࡣ࠿ࡉᐦᗘ[kg/m ]࡛࠶ࡿ㸬ᑦ㸪௒ᅇࡢࡵ࡟㸪ᅗ 2 ࡢᶓ㍈ࢆᑐᩘ┠┒࡜ࡋࡓ㸬− 192 −ᐃ⤖ᯝࢆぢࡸࡍࡃࡍࡿࡓ

ᅗ 2 ࡼࡾ㸪⇕ὶィἲ࡟ࡼࡿ ᐃ⤖ᯝࢆ㝖࠸ࡓ್ࡣ㸪ᘧ(8)࡟ࡼࡾ᥎ᐃࡉࢀࡿ⇕ఏᑟ⋡࡜࡯ࡰs10%௨ෆ୍࡛⮴ࡋࡓࡇ࡜ࡀศ࠿ࡿ㸬100Υ௜㏆࡛⇕ఏᑟ⋡ࡀ኱ࡁࡃኚ໬ࡋ࡚࠸ࡿࡢࡣ㸪ヨ㦂య࡟ྵࡲࢀࡿỈศࡢ
⵨Ⓨ࡟ࡼࡿᙳ㡪࡜⪃࠼ࡽࢀࡿ㸬

0.045

Ȣ [W/(m K)]

0.040

㸸Fumed silica 1 by previous apparatus
㸸Fumed silica 1 by Heat Flow Meter method
㸸Fumed silica 1 by Periodic Heat method
㸸Fumed silica 2 by New apparatus

࣭ 0.035
Estimation equation

0.030

+10%

-10%

0.025
0.020 1
10

102
ȟ [Υ]

Fig. 2 Thermal conductivities of Fumed silica compacts

103

5. ⤖ ㄽ᪂ࡋ࠸ ᐃ᪉ἲࢆᥦ᱌ࡋ㸪⡆༢࡟⇕ఏᑟ⋡ࢆ ᐃ࡛ࡁࡿ⿦⨨ࢆ㛤Ⓨࡋࡓ㸬ࡑࡢ⿦⨨ࢆ౑ࡗ࡚ࢼࣀ⢏Ꮚ⧄⥔」ྜᮦᩱࡢ ᐃࢆ⾜ࡗࡓ࡜ࡇࢁ㸪ḟࡢࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ㸬
ձ100Υ௜㏆࡛Ỉศࡢ⵨Ⓨ࡟ࡼࡿ࡜⪃࠼ࡽࢀࡿ⇕ఏᑟ⋡ࡢኚ໬ࡀほᐹࡉࢀࡓ㸬ղ ᪤࡟ᥦ᱌ࡉࢀ࡚࠸ࡿ᥎ᐃᘧ࡟ᑐࡋ࡚㸪௒ᅇࡢ ᐃ⤖ᯝࡀs10%ࡢ⠊ᅖ࡟࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ཧ⪃ᩥ⊩1) T. Ohmura, I. Abe, Y. Ito, K. Sato, H. Abe, and M. Naito, J. Soc. Powder Technol, Japan, 46, 461-466 (2009).
2) T. Ohmura, Y. Ito, I. Abe, H. Abe, and M. Naito, J. Soc. Powder Technol, Japan, 46, 806-812 (2009).
3) Tseng-Wen Lian, Akira Kondo, Takahiro Kozawa, Takahiro Ohmura, Wei-Hsing Tuan and Makio Naito.
Ceramics International 41, 9966-9971 (2015).
4) ኱ᮧ㸪ᓟ㸪୰ᮧ㸪஭ୖ㸪㎷㸪ෆ⸨㸹ࢼࣀ⢏Ꮚ/⧄⥔」ྜᮦᩱࡢ⇕ఏᑟ⋡࠾ࡼࡧ⇕ఏ㐩⋡ࡢྠ᫬ ᐃ ⣮యᕤᏛ఍ 2016 ᖺᗘ ᫓Ꮨ◊✲Ⓨ⾲఍ ୍⯡-17㸦pp.192-193㸧  (ᖹᡂ 28 ᖺ 5 ᭶)5) T. OMURA, Int. J. Soc. Mater. Eng. Resour. Vol.9, No.1/2, 17-22 (Sept. 2001).
(ඹྠ◊✲ศ㔝: ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝)− 193 −

SOFC ⏝ከᏍ㉁㟁ᴟᚤ⢏Ꮚࡢྜᡂ࡜㟁Ẽ໬Ꮫ≉ᛶホ౯㛵す኱Ꮫ ⎔ቃ㒔ᕷᕤᏛ㒊 ࢚ࢿࣝࢠ࣮࣭⎔ቃᕤᏛ⛉ᮌୗ༟ஓࠊ୸ᮏ♸ኴ㑻ࠊ࿴⏣ెஓ㸯㸬┠ⓗᅛయ㓟໬≀ᙧ⇞ᩱ㟁ụ㸦SOFC㸧ࡣ㧗ኚ᥮ຠ⋡Ⓨ㟁⿦⨨࡜ࡋ࡚᪤࡟ᐇ⏝໬ࡉࢀ࡚࠸ࡿࡀࠊ⪏ஂᛶྥୖ࡜ࢥ
ࢫࢺ๐ῶࡢࡓࡵࠊసື ᗘࡢ୰ప ໬㸦600~800°C㸧ࡀồࡵࡽࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊసື

ᗘࢆୗࡆࡿ࡜ࠊ࢖࢜

ࣥఏᑟᗘࡸ཯ᛂ⋡ࡢపୗ࡟ࡼࡾࠊ㟁ụ඲యࡢᛶ⬟ࡀపୗࡋ࡚ࡋࡲ࠺ࠋࡑࡢᨵၿ⟇࡜ࡋ࡚⪃࠼ࡽࢀࡿࡢࡀࠊ࢞
ࢫ㸦Ỉ⣲ࠊ✵Ẽ㸧࡜㟁ᴟ࡜ࡢ཯ᛂ⏺㠃ࢆቑຍࡉࡏࡿࡇ࡜࡛㟁ᴟࡢ᢬ᢠࢆపῶࡍࡿࡇ࡜࡛࠶ࡿࠋ㐣ཤࡢ◊✲࡛ࡣࠊ࢔ࣀ࣮ࢻ(⇞ᩱᴟ)࡛ࡢ཯ᛂ⏺㠃ࢆቑຍࡉࡏࡿࡓࡵ࡟ࠊࢡ࢚ࣥ㓟㸦CA㸧ῧຍᄇ㟝⇕ศゎἲ࡟ࡼࡾ࢔ࣀ࣮ࢻ
ᮦᩱ࡛࠶ࡿ NiO-Gd0.1Ce0.9O1.95㸦NiO-GDC㸧ࡢከᏍ㉁࡞」ྜᚤ⢏Ꮚࢆྜᡂࡍࡿࡇ࡜࡟ᡂຌࡋࡓ 1-2)ࠋᮏ◊✲࡛ࡣࠊ
ࡼࡾከᏍ㉁࠿ࡘ㧗ẚ⾲㠃✚ࢆᣢࡘ NiO-GDC ᚤ⢏Ꮚࡢྜᡂࡋࠊ⢏Ꮚᵓ㐀࡟ࡼࡿ཯ᛂ᢬ᢠ࡬ࡢᙳ㡪ࢆ᳨ウࡋࡓࠋ㸰㸬◊✲᪉ἲ
ࢡ࢚ࣥ㓟ῧຍᄇ㟝⇕ศゎ(CA-USP)ἲ࡟ࡼࡾ NiOѸGd0.1Ce0.9O1.95 ᚤ⢏Ꮚࢆྜᡂࡋࡓࠋྛ㔠ᒓࡢ◪㓟ሷ࡜ࢡ࢚ࣥ㓟ࢆ⣧Ỉ࡟⁐ゎࡋࡓࡶࡢࢆཎᩱ⁐ᾮ࡜ࡋࠊࡇࢀࢆ㉸㡢Ἴᄇ㟝ࡋ࡚㧗཯ᛂ⟶࡟㐃⥆౪⤥ࡋ⇕ศゎ཯ᛂ࡟ࡼࡗ࡚⏕ᡂࡋࡓ㓟໬≀ᚤ⢏Ꮚࢆ㟼㟁ᤕ㞟ჾ࡟ࡼࡗ࡚ᅇ཰ࡋࡓࠋྜᡂ᮲௳ࡣࠊ㔠ᒓ࢖࢜ࣥࡢ⥲࿴⃰ᗘࢆ CM = 0.2,
0.4 Mࠊࢡ࢚ࣥ㓟⃰ᗘࢆ CCA = 0, 0.2, 0.4 Mࠊྜᡂほᐹ࡟ࡼࡿ⢏Ꮚᵓ㐀ほᐹࠊ❅⣲྾╔ᗘࢆ Th = 800-1200°C ࡜ࡋࡓࠋᚓࡽࢀࡓ⢏ᏊࢆࠊTEMࠊSEM

ᐃ࡟ࡼࡿẚ⾲㠃✚⟬ฟࠊXRD

ᐃ࡟ࡼࡿ⤖ᬗᏊ⟬ฟ࡟ࡼࡾホ౯ࡋࡓࠋ⇞ᩱ㟁ụ࡜ࡋ࡚ࡢ≉ᛶࢆホ౯ࡍࡿࡓࡵ࡟ࠊYSZ 㟁ゎ㉁ᇶᯈ࡟ྜᡂ⢏Ꮚࢆሬᕸࠊ↝ᡂࡍࡿࡇ࡜࡛ SOFC ࢭࣝࢆస〇ࡋࠊ㈗◊✲ᡤタ⨨ࡢ⇞ᩱ㟁ụホ౯⿦⨨ࢆ⏝࠸࡚஺ὶ࢖ࣥࣆ࣮ࢲࣥࢫἲ࡟ࡼࡾ཯ᛂ᢬ᢠࢆホ౯ࡋࡓࠋ㸱㸬⤖ᯝᅗ 1 ࡢ SEM ീ࠾ࡼࡧ TEM ീࡼࡾ CM=0.4 M, CCA=0 M(a, e)ࡢྜᡂ⢏Ꮚࡣࠊෆ㒊࡟Ꮝࡀぢࡽࢀࡿࡶࡢࡢ㠀ᖖ࡟ᑠࡉࡃࠊẚ㍑ⓗᐦ࡞ᵓ㐀ࡢ⢏Ꮚ࡛࠶ࡗࡓࠋCM=0.4 M, CCA=0.4 M(b, f)࡜ࢡ࢚ࣥ㓟ࢆຍ࠼ࡓሙྜࠊྜᡂ⢏Ꮚࡣෆ㒊࡟ከᩘࡢᩘ༑ nm ࡢ⌫≧ࡢᏍࢆᣢࡘከᏍ㉁ᵓ㐀ࡢ⢏Ꮚ࡜࡞ࡗࡓࠋࡉࡽ࡟ࠊCM=0.2 M, CCA=0.4 M(c, g)࡜
◪㓟ሷࡢ⃰ᗘࢆῶࡽࡋཎᩱ⁐ᾮෆࡢࢡ࢚ࣥ㓟ẚ⋡ࢆ኱ࡁࡃࡍࡿ࡜ࠊෆ㒊࡟኱ࡁ࡞୍ࡘࡢ✵Ὕࢆࡶࡘ୰✵⢏Ꮚ࡜࡞ࡗࡓࠋࡇࢀࡽࡢᵓ㐀ࡢ㐪࠸ࢆ௨ୗࡢࡼ࠺࡟⪃ᐹࡋࡓࠋࢡ࢚ࣥ㓟ࢆῧຍࡋࡓሙྜࠊࢡ࢚ࣥ㓟ࡀ◪㓟ሷ࡜ࡣูࠎࡢ⢏Ꮚ࡜ࡋ࡚ᯒฟࡍࡿࠋ◪㓟ሷ⃰ᗘࡀప࠸࡜ࠊ◪㓟ሷ⢏Ꮚࡢෆ㒊࡟༢᰾ࡢࢡ࢚ࣥ㓟⢏Ꮚࡀෆໟࡉࢀࠊࢡ
࢚ࣥ㓟ࡀ↝ኻࡍࡿ࡜୰✵⢏Ꮚ࡜࡞ࡿࠋ◪㓟ሷ⃰ᗘࡀ㧗࠸࡜ࠊ◪㓟ሷ⢏Ꮚࡢෆ㒊࡟ከ᰾ࡢࢡ࢚ࣥ㓟⢏ᏊࡀෆໟࡉࢀࠊከᏍ㉁⢏Ꮚ࡜࡞ࡿࠋࡉࡽ࡟ࠊCM=0.2 M, CCA=0.8 M(d, h)࡜ࢡ࢚ࣥ㓟ࡢẚ⋡ࢆ኱ࡁࡃࡍࡿ࡜ࠊࢡ࢚ࣥ㓟ࢆῧຍࡋ࡚࠸࡞࠸ሙྜࡢ⢏Ꮚᵓ㐀࡜ࡼࡃఝࡓᵓ㐀ࡢ⢏Ꮚࡀᚓࡽࢀࡓࠋ࡝ࡢ᮲௳ࡢ⢏Ꮚࡶ SEM ࡛ࡣࠊ⾲㠃࡟ࡣᏍࡣ☜ㄆ࡛ࡁࡎࠊ㠀ᖖ࡟ᚤ⣽࡞ᏍࡀᏑᅾࡍࡿ࡜⪃࠼ࡽࢀࡿࠋ
ᅗ 2 ࡟ྛ᮲௳࡛ྜᡂࡋࡓ⢏Ꮚࢆ⏝࠸࡚స〇ࡋࡓ SOFC ࢭࣝࡢ཯ᛂ᢬ᢠࢆࡲ࡜ࡵࡓࠋࢡ࢚ࣥ㓟ࢆῧຍࡋࡓ
⢏Ꮚࢆ౑⏝ࡋࡓ⇞ᩱᴟࡣࠊ᢬ᢠࡀపῶࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࢡ࢚ࣥ㓟ῧຍ㔞ࡀ᭱ࡶከ࠸ CM=0.2 M, CCA=0.8 M࡛ࡣ࡞ࡃ CM=0.4 M, CCA=0.4 M ࡢ᢬ᢠࡀ᭱ࡶᑠࡉࡃ࡞ࡗࡓࠋᅗ 3 ࡟ 1100Υ࡛ 2 ᫬㛫↝ᡂᚋࡢ NiO-GDC ⢏Ꮚࡢ
SEM ⏬ീࢆ♧ࡍࠋCM=0.4 M, CCA=0.4 M ࡢྜᡂ⢏Ꮚ(a)࡛ࡣࠊ⢏Ꮚࡢ⾲㠃࡟Ꮝࡀぢࡽࢀࡿࠋ↝ᡂ๓ࡢ⢏Ꮚࡢෆ㒊ࡣከᏍ㉁ᵓ㐀࡛࠶ࡗࡓࡀࠊ⾲㠃࡟኱ࡁ࡞Ꮝࡀ࡞࠸ࠊࡘࡲࡾࠊ㛢Ꮝࡢ≧ែ࡛࠶ࡗࡓࡀࠊࢭࣝస〇᫬ࡢ↝ᡂࣉࣟࢭࢫ࡟ࡼࡗ࡚⾲㠃࡟㛤Ꮝࢆࡶࡘᵓ㐀࡟ኚ໬ࡋࡓࡇ࡜࡛୕┦⏺㠃ࡀቑຍࡋࠊ᢬ᢠࡀᑠࡉࡃ࡞ࡗࡓ࡜⪃࠼ࡽࢀ
ࡿࠋCM=0.2 M, CCA=0.8 M ࡢྜᡂ⢏Ꮚ(b)࡛ࡣࠊ⾲㠃࡟ᚤ⣽࡞Ꮝࢆᣢࡗ࡚࠸ࡓࡀࠊ↝ᡂ࡟ࡼࡗ࡚↝⤖ࡀ㐍⾜ࡋࠊ㛢Ꮝࡋࡓࡇ࡜࡛᢬ᢠࡀ኱ࡁࡃ࡞ࡗࡓ࡜⪃࠼ࡽࢀࡿࠋ

− 194 −

Area surface resistance[:cm2]

1.5

CM=0.4 M, CCA=0 M
CM=0.4 M, CCA=0.4 M
CM=0.2 M, CCA=0.4 M
CM=0.2 M, CCA=0.8 M

1

0.5

0

650

700

750

800

Measurement temperature[°C]ᅗ 2 NiO-GDC ⇞ᩱᴟࡢ཯ᛂ᢬ᢠ㻌ᅗ 1 ྜᡂ⢏Ꮚࡢ SEM ീ(a), (b), (c), (d)࠾ࡼࡧ TEM ീ(e), (f), (g), (h) (a)(e): CM=0.4 M, CCA=0 M, (b)(f):CM=0.4 M, CCA=0.4 M, (c)(g):CM=0.2M, CCA=0.4M,(d)(h): CM=0.2M, CCA=0.8M (Th=800Υ, F=5 L/min)ᅗ 3 ↝ᡂᚋࡢ NiO-GDC ⢏Ꮚࡢ SEM ീ㸲㸬⤖ㄽ
CA-USP ἲ࡟ࡼࡿ NiO-GDC ⇞ᩱᴟᚤ⢏Ꮚࢆྜᡂࡋࡓࠋࢡ࢚ࣥ㓟ῧຍ㔞࡟ࡼࡾࠊ⢏Ꮚࡢෆ㒊ᵓ㐀ࡀኚ໬ࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ⢏Ꮚෆ㒊࡟ᩘ༑ nm ࡢᏍࡀከᩘ࠶ࡿᵓ㐀࡟ࡍࡿ࡜ࠊࢭࣝ↝ᡂ᫬࡟ෆ㒊Ꮝࡀ⢏Ꮚእ㒊࡟㛤Ꮝࡋ⾲㠃✚ࡀከࡃ࡞ࡗࡓࡇ࡜ࡀࠊ⇞ᩱᴟࡢ཯ᛂ᢬ᢠࡢపῶ࡟ࡘ࡞ࡀࡗࡓ࡜⪃࠼ࡽࢀࡿࠋ
㸳㸬ཧ⪃ᩥ⊩
1)

T. Kinoshita, A. Arastoo and M. Adachi: “Porous particle synthesis for the SOFC anode and cathode materials by citricacid-addition ultrasonic spray pyrolysis (CA-USP)”, Aerosol Sci. Technol. 48, 10, 1089-1098 (2014).

2) T. Kinoshita, H. Maruko, A. Kondo, M. Naito, M. Adachi: “Synthesis of porous La0.6Sr0.4Co0.2Fe0.8O3 particles by citricacid-addition ultrasonic spray pyrolysis (CA-USP)” Abstract of 5th International Conference on the Characterization andControl of Interfaces for High quality Advanced Materials (2015) BP-27.

㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 195 −

ࢥࣟ࢖ࢻࣉࣟࢭࢫ࡟ࡼࡿࢼࣀ」ྜయࡢ๰〇                      ⩌㤿኱Ꮫ኱Ꮫ㝔⌮ᕤᏛᗓ                      బ⸨ ࿴ዲ࣭ᒾ⏣ ༓㭯࣭Nanthana Pouy⥴ゝ
ᅛయ㓟໬≀ᆺ⇞ᩱ㟁ụ(Solid Oxide Fuel Cells; SOFCs)ࡣ⇞ᩱ㟁ụࡢ୰࡛ࡶ᭱ࡶⓎ㟁ຠ⋡ࡀ㧗ࡃࠊࡲࡓࠊྍ⇞ᛶ࢞ࢫࢆྵࡴ㧗 ࡢ᤼࢞ࢫࢆᚋẁࡢ࢞ࢫࢱ࣮ࣅ࡛ࣥ⇞↝ࠊࡉࡽ࡟ࡣࠊᗫ⇕ࢆ⏝࠸࡚⵨Ẽࢱ࣮ࣅࣥࢆ㥑ືࡉࡏࡿࡇ࡜࡟ࡼࡾࠊ⌮ㄽୖࠊ⇞ᩱࡢᣢࡘ໬Ꮫ࢚ࢿࣝࢠ࣮ࢆ 60%௨ୖࡢຠ⋡࡛㟁ຊ࡟ኚ᥮ྍ⬟࡛࠶ࡾࠊḟୡ௦࢚ࢿࣝࢠ࣮ኚ᥮ࢹࣂ࢖ࢫ࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࠋ᭱᪂㗦ࡢ SOFC
࡟࠾࠸࡚ࡣࠊ㟁ᴟ࡟࠾ࡅࡿ㟁Ẽ໬Ꮫ཯ᛂ㏿ᗘࡀ㧗ฟຊ໬ࡢ࣎ࢺࣝࢿࢵࢡ࡜࡞ࡗ࡚࠸ࡿࠋࡑࡢࡓࡵࠊ
཯ᛂ㏿ᗘࢆྥୖࡉࡏࡿࡓࡵࡢ᳨ウࡀᗈࡃ⾜ࢃࢀ࡚࠸ࡿࠋ᪂つᮦᩱࡢ㛤Ⓨࡀ㟁ᴟࡢ㧗ᛶ⬟໬࡟ྥࡅࡓ୍ࡘࡢ኱ࡁ࡞₻ὶ࡛࠶ࡿ୍᪉[1]ࠊᚤ⣽ᵓ㐀ไᚚࠊ࡜ࡾࢃࡅ͆ࢼࣀᵓ㐀໬͇ࡣࡶ࠺୍ࡘࡢ᭷ຠ
࡞࢔ࣉ࣮ࣟࢳ࡛࠶ࡿࠋ[2]
୰㧗 ᆺ SOFC ࡟࠾࠸࡚ࡣࠊ✵Ẽᴟ(࢝ࢯ࣮ࢻ)ᮦᩱ࡛࠶ࡿ La(Sr)MnO3(LSM) /࢖ࢵࢺࣜ࢔Ᏻ
ᐃ໬ࢪࣝࢥࢽ࢔(YSZ)ከᏍ㉁」ྜయ࡟࠾ࡅࡿ㓟⣲㑏ඖ཯ᛂ(ORR)ࡀࢭࣝ඲యࡢᛶ⬟ࡢ࣎ࢺࣝࢿࢵ
ࢡ࡟࡞ࡗ࡚࠸ࡿࠋ㟁ᴟࡢࢼࣀᵓ㐀໬ࡣࠊ྾╔㓟⣲ࡢ⾲㠃ᣑᩓࣃࢫࡢ▷⦰ࡸࠊLSM/YSZ/O2 ࠿ࡽ࡞ࡿ཯ᛂሙ(୕┦⏺㠃)ࡢ኱ᖜ࡞ቑ኱ࢆࡶࡓࡽࡋࠊࡇࢀ࡟ࡼࡾ ORR ≉ᛶࡢ኱ᖜ࡞ྥୖࡀᮇᚅ࡛ࡁ
ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊ㏻ᖖࡢ࢔ࣉ࣮ࣟࢳ࡛ࡣࠊ1000ºC ࢆ㉸࠼ࡿ↝ᡂࡢ㝿࡟ⴭࡋ࠸⢏ᡂ㛗ࢆ⏕ࡌࠊ࢝ࢯ࣮ࢻࡢࢼࣀᵓ㐀໬ࡣᴟࡵ࡚ᅔ㞴࡛࠶ࡿࠋ᭱㏆ࠊᡃࠎࡣỈ୰࡟ศᩓྍ⬟࡞ YSZ ࢼࣀ⤖ᬗ [3] ࢆ⏝࠸ࡓࢥࣟ࢖ࢻࣉࣟࢭࢫ࡟ࡼࡾࠊᆒ୍࡞ LSM/YSZ ࢼࣀᵓ㐀㟁ᴟࡢస〇࡟ᡂຌࡋࡓࠋ᫖ᖺᗘࡢ᳨ウ࡛ࡣࠊYSZ ࡢ Y2O3 ྵ᭷㔞ࡀ ORR ≉ᛶ࡟ཬࡰࡍᙳ㡪ࢆㄪᰝࡋࠊ3ࠥ8mol%࡟࠾࠸࡚Ⰻዲ࡞≉ᛶࡀᚓࡽࢀࡿࡇ࡜ࢆሗ࿌ࡋࡓࠋ௒ᖺᗘࡣࠊLSM ࡜ YSZ ࡢ⤌ᡂẚࡀ㟁ᴟᵓ㐀࡜ ORR ≉ᛶ࡟ཬࡰࡍᙳ㡪ࢆㄪᰝࡋࡓࠋ
㸬ᐇ㦂᪉ἲ
ཎᩱ㔠ᒓ◪㓟ሷỈ⁐ᾮ䜢 8YSZ(8 mol%Y2O3)䝘䝜⤖ᬗศᩓ⁐ᾮ䛻ຍ䛘䚸LSM ๓㥑య䜢 YSZ 䝘䝜⤖ᬗ⾲㠃䛻㑅ᢥⓗ䛻᰾⏕ᡂ䛥䛫䛯ᚋ䚸䛣䜜䜢Ὑί䛺䜙䜃䛻෾⤖஝⇱䛧䛶 LSM/YSZ 」ྜ๓㥑య䜢ྜᡂ䛧䛯䚹ḟ䛻䚸䛣䜜䜢 1000 ºC 䛷⇕ฎ⌮䛧䛶 LSM/YSZ 䝘䝜⤖ᬗ」ྜయ䜢ᚓ䛯䚹8YSZ 㟁ゎ㉁(┤ᚄ
17mm䚸ཌ䛥 400䡚450μm)ୖ䛻ᙧᡂ䛧䛯 NiO/YSZ ⇞ᩱᴟ䛾ᑐ㠃䛻䚸ᚓ䜙䜜䛯 LSM/YSZ 䝘䝜⤖ᬗ」ྜయ䜢ྵ䜐䝨䞊䝇䝖䜢䝇䜽䝸䞊䞁༳ๅ䛧䚸1100ºC 䛷 2 ᫬㛫↝ᡂ䛧䛶✵Ẽᴟ䜢ᙧᡂ䛧䛯䚹ORR ≉ᛶ䛿䚸䜹䝋䞊䝗䛻஝⇱✵Ẽ䜢䚸䜰䝜䞊䝗䛻 3%ຍ‵ H2 䜢䛭䜜䛮䜜 100ml/min 䛷౪⤥䛧䚸஺ὶ䜲䞁䝢䞊䝎䞁䝇ᐃ䛻䜘䜚ホ౯䛧䛯䚹ᚓ䜙䜜䛯 LSM/YSZ ✵Ẽᴟ䛾ᚤ⣽ᵓ㐀䜢䛭䜜䛮䜜䚸㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾䠉䜶䝛䝹䜼䞊ศᩓᆺ⺯ග X ⥺ศග⿦⨨(TEM-EDX)䛷ホ౯䛧䛯䚹㸬⤖ᯝ࡜⪃ᐹ Fig.1 䛻 YSZ ྵ᭷㔞䛾␗䛺䜛 LSM/8YSZ ✵Ẽᴟ䛾ඖ⣲䝬䝑䝢䞁䜾ീ䜢♧䛩䚹㟁ᴟ䛿ᚤ⣽䛺⢏Ꮚ䝛䝑䝖䝽䞊䜽䛛䜙ᵓᡂ䛥䜜䜛ᆒ୍䛺ከᏍᵓ㐀䜢᭷䛧䛶䛔䜛䛣䛸䛜䜟䛛䜛䚹䜎䛯䚸LSM 䛸 YSZ 䛿㞄᥋㓄⨨䛥䜜䛶䛚䜚䚸ྛ䚻䛾䜾䝺䜲䞁䝃䜲䝈䛿 1100ºC 䛷↝ᡂ䛧䛯䛻䜒㛵䜟䜙䛪䚸100 nm ⛬ᗘ䛸ᴟ䜑䛶ᚤ⣽䛷䛒䛳䛯䚹䛣䛾䛣䛸䛿䚸ᴟ䜑䛶ᆒ୍䛻ΰྜ䛥䜜䛯 LSM 䛸 YSZ 䛜⇕ฎ⌮᫬䛾⢏ᡂ㛗䜢┦஫䛻ᢚไ䛧䛯䛣䛸䜢ᙉ䛟♧၀䛧䛶䛔䜛䚹䜎䛯䚸䛭䛾⢏Ꮚᚄ䜔ẼᏍᵓ㐀䛿䚸⤌ᡂẚ䛻౫Ꮡ䛧䛺䛔䛣䛸䛛䜙䚸䛣䜜䜙䛾ᕪ␗䛾ᙳ㡪䜢᤼㝖䛧䛶䚸ORR ≉ᛶ䛾⤌ᡂẚ౫Ꮡᛶ䜢ホ౯䛩䜛䛣䛸䛜䛷䛝䜛䜒䛾䛸⪃䛘䜙䜜䜛䚹㻌 Fig.2 䛻 LSM/YSZ ✵Ẽᴟ䛾஺ὶ䜲䞁䝢䞊䝎䞁䝇 ᐃ䛻䜘䜚ᚓ䜙䜜䛯䝞䝹䜽᢬ᢠ(Rbulk)ᡂศ䛺䜙䜃䛻㟁ᴟ཯ᛂ᢬ᢠ(Rp)ᡂศ䛾 YSZ ྵ᭷㔞౫Ꮡᛶ䜢♧䛩䚹䝞䝹䜽᢬ᢠ䛿 YSZ ྵ᭷㔞䛜 56%௨ୗ䛷䛿୍ᐃ䛷䛒䛳䛯䚹୍᪉䚸67%䛷䛿䝞䝹䜽᢬ᢠ䛿ⴭ䛧䛟ቑຍ䛧䛯䚹Fig.1 (d)䜘䜚䚸YSZ ྵ᭷㔞䛜 67%䛷䛿䚸LSM
ྵ᭷㔞䛜ᑡ䛺䛔䛯䜑䚸༑ศ䛺䝛䝑䝖䝽䞊䜽䜢ᙧᡂ䛷䛝䛪䚸㟁ᴟෆ㒊䛾ከᏍ㉁䛺 YSZ 䛻䛚䛡䜛㓟⣲䜲䜸− 196 −

⤖ゝࢥࣟ࢖ࢻࣉࣟࢭࢫࢆ⏝࠸࡚✀ࠎࡢ YSZ ྵ᭷㔞ࢆ᭷ࡍࡿ LSM/YSZ ࢼࣀᵓ㐀✵Ẽᴟࡢస〇࡟ᡂຌࡋࡓࠋ≉࡟ప ᇦ࡟࠾࠸࡚ ORR ≉ᛶࡢ YSZྵ᭷㔞౫Ꮡᛶࡀ㢧ⴭ࡛࠶ࡾࠊ⤌ᡂࡢ᭱㐺໬ࡣప
సືᆺ SOFC ࡢ㧗ᛶ⬟໬࡟࠾࠸࡚ᴟࡵ࡚㔜せ࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ

R bulk / ȍ·cm2

䞁ఏᑟ(LSM 䛾䝩䞊䝹ఏᑟ䛻ẚ䜉䛶 3 ᱆ప䛔)䛾
Rbulk 䜈䛾ᐤ୚䛜ⴭ䛧䛟㧗䜎䛳䛯䛣䛸䛻㉳ᅉ䛩䜛䛸⪃䛘䜙䜜䜛䚹௒ᅇ᳨ウ䛧䛯୰䛷䛿䚸YSZ ྵ᭷㔞䛜 56%䛻䛚
䛔䛶᭱䜒ప䛔 Rp 䜢♧䛧䚸800, 750, 700 䛚䜘䜃
650 ºC 䛻䛚䛔䛶䛭䜜䛮䜜 0.20, 0.48, 1.0 䛚䜘䜃
1.63 ȍ·cm2 䛷䛒䛳䛯䚹䜎䛯䚸௚䛾⤌ᡂ䛸ẚ㍑䛧䛶䚸≉䛻ప ᇦ䛻䛚䛔䛶ඃ䜜䛯 ORR ≉ᛶ䛜Ⓨ⌧䛩䜛䛣䛸䛜᫂䜙䛛䛸䛺䛳䛯䚹䛣䛾䛣䛸䛿䚸⤌ᡂ䛾᭱㐺໬䛿䚸≉䛻䚸୰ప సືᆺ SOFC 䛻䛚䛔䛶୙ྍḞ䛷䛒䜛䛣䛸䜢♧䛧䛶䛔䜛䚹䜎䛯䚸䛣䜜䜎䛷䚸᭱㐺䛺 YSZ ྵ᭷㔞䛻㛵䛩䜛ከ䛟䛾᳨ウ䛜⾜䜟䜜䛶䛝䛯䚹䛧䛛䛧䛺䛜䜙䚸ᚤᵓ㐀䛾ヲ⣽䛺䜻䝱䝷䜽䝍䝸䝊䞊䝅䝵䞁䛜⾜䜟䜜䛶䛔䛺䛔䛯䜑䚸⤌ᡂẚ䛾ኚ໬䛻௜㝶䛧䛶⏕䛨䜛ᚤᵓ㐀ኚ໬䛜 ORR ≉ᛶ䛻ᙳ㡪䜢ཬ䜌䛧䛶䛔䜛ྍ⬟ᛶ䜢᤼㝖䛷䛝䛺䛔䚹ᮏᡭἲ䛷䛿䚸ᖜᗈ䛔⤌
Fig. 1 EDS mapping of LSM/8YSZ
ᡂẚ䛻䛚䛔䛶䚸㢮ఝ䛾ᚤᵓ㐀䜢᭷䛩䜛 LSM/YSZ
cathode with YSZ content of (a)38, (b)45,✵Ẽᴟ䛜ᚓ䜙䜜䜛䛣䛸䛛䜙䚸⤌ᡂẚ䛜 ORR ≉ᛶ䛻(c)56 and (d)67 % (㉥㸸YSZ, ỈⰍ㸸LSM)
ཬ䜌䛩ᙳ㡪䛻㛵䛩䜛䜘䜚ヲ⣽䛺ホ౯䜢⾜㻌 㻌 䛖䛣䛸
4.0
䛻䜘䜚䚸LSM/YSZ 䝘䝜ᵓ㐀✵Ẽᴟ䛻䛚䛡䜛᭱㐺䛺(a)⤌ᡂẚ䜢᫂䜙䛛䛻䛩䜛䛣䛸䛜䛷䛝䜛䛸ᮇᚅ䛥䜜䜛䚹
650 ÛC3.00800 ÛC30[1] Z. P. Zhao, S. M. Haile, Nature, 431 (2004) 170

4.0
Rp / ȍ·cm2

5.0

ㅰ㎡
ᮏ◊✲ࡣࠊ᥋ྜ⛉Ꮫඹྠ฼⏝࣭ඹྠ◊✲ᣐⅬ(኱㜰኱Ꮫ ᥋ྜ⛉Ꮫ◊✲ᡤ)ࡢᨭ᥼࡟ࡼࡾ⾜ࢃࢀࡓࡶࡢ࡛࠶ࡿࠋࡇࡇ࡟グࡋ࡚ㅰពࢆ⾲ࡍࡿࠋ

750 ÛC1.0ཧ⪃ᩥ⊩[2] T. Suzuki, Z. Hasan, Y. Funahashi, T. Yamaguchi,
Y. Fujishiro, M. Awano, Science, 325(2009) 852[3] K. Sato, K. Horiguchi, T.Nishikawa, S. Yagishita,
K. Kuruma, T. Murakami, H. Abe, Inorg. Chem., 54(2015) 7976

700 ÛC

2.0

40
50
60
YSZ content [%](b)

70

650 ÛC

3.0
2.0
1.0
0

30

800 ÛC700 ÛC750 ÛC40
50
60
YSZ content [%]70

Fig.2 Effect of YSZ content on (a) Rbulk
and (b) Rp of nanostructured LSM/YSZ
cathodes(ඹྠ◊✲ศ㔝:ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝)− 197 −

࣐࢖ࢡࣟἼᒁᡤຍ⇕ࢆ⏝࠸ࡓ $O2& ྜᡂ࡜ࡑࡢᛂ⏝ྡྂᒇᕤᴗ኱Ꮫ ඛ㐍ࢭ࣑ࣛࢵࢡࢫ◊✲ࢭࣥࢱ࣮ⓑ஭ Ꮥ ┠ⓗ
㏆ᖺࠊ㧗 Ᏻᐃᛶࠊ㓟໬㜵Ṇᛶࠊ⪏㣗ᛶཬࡧ⪏⇕⾪ᧁᛶ࡟ඃࢀࡿᮦᩱࡀồࡵࡽࢀ࡚࠾ࡾࠊ$O2& ࡸ $O2&࡜࠸ࡗࡓᙧែ࡛▱ࡽࢀࡿ࢔࣑ࣝࢼⅣ໬≀ࡢྜᡂࡀὀ┠ࡉࢀ࡚࠸ࡿࠋ࢔࣑ࣝࢼⅣ໬≀ࡢ〇㐀᪉ἲ࡜ࡋ࡚ࡣࠊ
Ⅳ⣲ཎᩱ࡜࢔࣑ࣝࢼཎᩱࢆ Υ௨ୖࡢ㧗 ࡛⇕ฎ⌮ࡍࡿ↝⤖ἲ࠶ࡿ࠸ࡣ࢔࣮ࢡ⅔࡛⁐⼥ࡍࡿ⁐⼥ἲࡀ᳨ウࡉࢀ࡚࠸ࡿࡀ>@ࠊࢥࢫࢺࡸ࢚ࢿࣝࢠ࣮ᾘ㈝ࡢほⅬ࠿ࡽࡲࡔᐇ⏝໬ࡉࢀ࡚࠸࡞࠸ࠋ
ࡑࡇ࡛ᡃࠎࡣࠊᚑ᮶ࡢ㟁Ẽ⅔ἲࡼࡾࡶ┬࢚ࢿࣝࢠ࣮࡞ຍ⇕ἲ࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿ࣐࢖ࢡࣟἼຍ⇕ἲ࡟╔┠ࡋࡓࠋ࣐࢖ࢡࣟἼຍ⇕ἲࡣࠊ࣐࢖ࢡࣟἼࢆᑐ㇟≀࡟↷ᑕࡋࠊ⮬ᕫⓎ⇕ࡍࡿࡇ࡜࡟ࡼࡾຍ⇕ࡍࡿ᪉ἲ࡛
࠶ࡾࠊ┬࢚ࢿࣝࢠ࣮໬ࡀᅗࢀࡿ௚ࠊෆ㒊ຍ⇕ࠊ㑅ᢥຍ⇕ࠊᒁᡤຍ⇕ࠊࡑࡋ࡚཯ᛂࡢಁ㐍࡞࡝ࡢ࣐࢖ࢡࣟἼ
ຍ⇕≉᭷ࡢ⌧㇟Ⓨ⌧ࡀᮇᚅࡉࢀࡿࠋ
ᮏ◊✲࡛ࡣࠊ཯ᛂ≀ཬࡧ࣐࢖ࢡࣟἼ྾཰ᮦᩱ࡜ࡋ࡚Ⅳ⣲ࢆ⏝࠸ࠊ࢔࣑ࣝࢼ࡜ΰྜᚋࠊ࣐࢖ࢡࣟἼຍ⇕࡟ࡼࡾ཯ᛂࡉࡏࡿࡇ࡜࡛ࠊ࢔࣑ࣝࢼⅣ໬≀ࡢྜᡂࢆ⾜࠸ࠊྜᡂ≀ࡢホ౯ࢆ⾜ࡗࡓࠋ ᐇ㦂᪉ἲ
࢔࣑ࣝࢼⅣ໬≀ࢆྜᡂࡍࡿࡓࡵࡢཎᩱ࡜
ࡋ࡚ேᕤ㯮㖄 $*% ࡜࣮࢝࣎ࣥࣈࣛࢵࢡࢩ ࣮ ࢫ ࢺ 65$ ࠊ ࢔ ࣝ ࣑ ࢼ ※ ࡜ ࡋ ࡚ Ș
$O2 $$ ࢆ⏝࠸ࡓࠋྛཎᩱࢆ  ᫬㛫Υ࡛஝⇱ࡉࡏࠊ㔜㔞ẚ࡛Ⅳ⣲㸸࢔࣑ࣝࢼ㸻㸯㸸㸰࡟࡞ࡿࡼ࠺⛗㔞ࡋࠊங㖊ࢆ⏝࠸࡚ ศ⛬ᗘΰྜࢆ⾜ࡗࡓࠋࡑࡢᚋࠊヨᩱ J ࢆ࣐࢖ࢡࣟἼ⅔࡛ ࠊࠊΥୗ࡟࡚ಖᣢ᫬㛫࡞ࡋ࡛ຍ⇕ࡋࡓࠋࡲࡓࠊ཯ᛂࢆࡼࡾ
㐍⾜ࡉࡏࡿࡓࡵ Υ࡛  ศಖᣢࡋࡓヨᩱࡶస〇ࡋࡓࠋຍ⇕୰ࡣⅣ⣲ࡢ⇞↝ࢆ㜵ࡄࡓࡵࠊ࢔ࣝࢦࣥ࢞ࢫࢆ /PLQ ࡛⅔ෆ࡟ὶධࡋࠊ୙
Fig. 1. Schematic of microwave irradiation furnaceάᛶ㞺ᅖẼ࡟ࡋࡓࠋࡲࡓࠊ࣐࢖ࢡࣟἼ⅔࡛ຍ⇕ࡍࡿ㝿ࠊ㧗࣐࢖ࢡࣟἼ྾཰ᮦᩱ࡜ࡋ࡚▱ࡽࢀ࡚࠸ࡿ 6L& ࢆࡿࡘࡰࡢእഃ࡟ሬᕸࡋࠊⅣ⣲࡟ࡼࡿⓎ⇕࡟ຍ࠼ 6L& ࡟ࡼࡿእ㒊ຍ⇕ࡶ⏝࠸࡚ຍ⇕ࢆ⾜ࡗࡓࠋ࣐࢖ࢡࣟἼຍ⇕ἲ࡛ຍ⇕ࡋࡓ㝿ࡢᐇ㦂ᶍᘧᅗࢆ )LJ ࡟♧ࡍࠋࡲࡓࠊᚑ᮶ἲ࡜ࡋ࡚㟁Ẽ⅔ຍ⇕ἲࢆ⏝࠸ࡓࠋᐇ㦂᮲௳ࡣ࣐࢖ࢡࣟἼຍ⇕࡜ྠᵝ࡟࢔ࣝࢦࣥ㞺ᅖẼୗ࡛⾜࠸ࠊΥࠊ ᫬㛫ຍ⇕ࡋࡓࠋᚓࡽࢀࡓヨᩱ୰ࡢⅣ⣲ࡢ㔞ࢆ 7* ศᯒࠊヨᩱ୰ࡢᡂศศᯒࢆ
;5' ࡟ࡼࡾศᯒࡋࡓࠋ ⤖ᯝ࠾ࡼࡧ⪃ᐹ;5' ࡢ⤖ᯝ㸦)LJ㸧ࡼࡾࠊ࣐࢖ࢡࣟἼ࡛ Υຍ⇕ࡋࡓヨᩱࡣ r௜㏆࡟ $O2& ࡢࣆ࣮ࢡࡀ᳨ฟࡉ
ࢀࡓࠋࡲࡓࠊΥ࡛  ศಖᣢࡍࡿࡇ࡜࡛ࣆ࣮ࢡᙉᗘࡢୖ᪼ࡀ☜ㄆࡉࢀࡓࠋࡋ࠿ࡋࠊᚑ᮶ἲ࡛ຍ⇕ࡋࡓヨᩱ࡛ࡣࠊ$O2& ࡢ⏕ᡂࡣ☜ㄆࡉࢀࡎ $O2 ࡢࣆ࣮ࢡࡢࡳࡀ᳨ฟࡉࢀࡓࠋࡲࡓࠊ7* ศᯒࡢ⤖ᯝ࠿ࡽ࣐࢖ࢡࣟἼ
࡛ຍ⇕ࡋࡓヨᩱࡣࠊΥࠊ
Υࠊ
Υ࡛ಖᣢ↓ࡋ࡛ຍ⇕ࡋࡓヨᩱࡣࡑࢀࡒࢀⅣ⣲ྵ᭷㔞ࡀ ZWࠊZWࠊZW࡜࡞ࡾࠊ ᗘࡀୖ᪼ࡍࡿ࡯࡝Ⅳ⣲㔞ࡀῶᑡࡋࠊ཯ᛂࡀ㐍⾜ࡋ࡚࠸ࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋࡲࡓࠊΥ࡛ ศಖᣢࡋࡓヨᩱ࡛ࡣⅣ⣲ྵ᭷㔞ࡀ ZW࡜࡞ࡾࠊ᭦࡟཯ᛂࡀ㐍⾜ࡋ࡚࠸ࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋࡋ࠿ࡋࠊᚑ
᮶ἲ࡛ຍ⇕ࡋࡓヨᩱࡣ௙㎸ࡳ㔞࠿ࡽኚ໬࡞ࡃⅣ⣲ྵ᭷㔞ࡣ ZWࡢࡲࡲ࡛࠶ࡗࡓࠋ;5'ࠊ7* ศᯒࡢ⤖ᯝࡼࡾ− 198 −

ຍ⇕ἲ࡜ࡋ࡚ᚑ᮶ࡢຍ⇕ἲࡼࡾࡶ࣐࢖ࢡࣟἼ࡟
ࡼࡿຍ⇕ࡢ᪉ࡀ $O2& ࡢ⏕ᡂ㔞ࡀከ࠸ࡇ࡜ࡀࢃ࠿
ࡗࡓࠋࡇࡢ⤖ᯝࡣࠊ࣐࢖ࢡࣟἼຍ⇕࡛ࡣ 6L& ࢆ⏝࠸࡚እ㒊࠿ࡽࡢຍ⇕ࡶ⾜ࡗ࡚࠸ࡿࡀࠊⅣ⣲⮬㌟ࡶ
Ⓨ⇕ࡍࡿࡓࡵෆ㒊ຍ⇕ࡶ⏕ࡌ࡚࠸ࡿࠋᚑࡗ࡚ࠊ཯
ᛂ≀࡛࠶ࡿⅣ⣲⮬㌟ࡀ⇕ࢆⓎ⏕ࡉࡏ࢔࣑ࣝࢼ࡜
ࡢ⏺㠃࡛㧗 ࡟࡞ࡾ཯ᛂᛶࡀⰋࡃ࡞ࡗࡓࡢ࡛ࡣ
࡞࠸࠿࡜⪃࠼ࡽࢀࡿࠋࡲࡓࠊ ᗘࡢ ᐃἲࡶ࣐࢖
ࢡࣟἼຍ⇕ࡣᨺᑕ ᗘィࠊᚑ᮶ࡢຍ⇕ἲ࡛ࡣ⇕㟁ᑐࢆ⏝࠸࡚࠸ࡿࠋᨺᑕ ᗘィࡣヨᩱࡢ⾲㠃࠿ࡽᨺᑕࡉࢀࡿග࡛ ᗘࡢ ᐃࢆ⾜ࡗ࡚࠸ࡿࡓࡵࠊ⾲㠃㒊ศࡢ ᗘࢆ ᐃࡋ࡚࠸ࡿࠋᚑࡗ࡚ࠊヨᩱෆ㒊ࡣΥࡼࡾࡶ㧗 ࡜࡞ࡗ࡚࠸ࡿྍ⬟ᛶࡶ⪃࠼ࡽࢀࡿࠋ࣐ࣛࣥศගἲࡢ⤖ᯝࡼࡾ㠀ᬗ㉁࡞ᵓ㐀ࢆࡶࡗࡓ࣮࢝࣎ࣥࣈࣛࢵࢡࡀ㯮㖄ᵓ㐀࡟㌿⛣ࡋ࡚࠸ࡿ࡜ࢃ࠿ࡗࡓࠋࡇࡢ⤖ᯝࠊ7*$ ࡟࠾࠸࡚ຍ⇕ ᗘࡀ㧗 ࣭ಖᣢ᫬㛫ࡀ㛗࠿ࡗࡓヨᩱࡢ᪉ࡀ㞴⇞ᛶࡢ
Fig. 2 XRD patterns of alumina-carbon㯮㖄ᵓ㐀࡟࡞ࡾ㔜㔞ῶᑡࡀࡼࡾ㧗 ഃ࡛⏕ࡌࡓ
composites samples heated by microwave and࡜⪃࠼ࡽࢀࡿࠋ
conventional.
ࡉࡽ࡟ ;5' ࡢ⤖ᯝࡼࡾ࢔࣑ࣝࢼࡣ㓟⣲Ḟᦆᆺ࢔࣑ࣝࢼ࡬࡜㌿⛣ࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ㓟⣲Ḟᦆᆺ࢔࣑ࣝࢼࡣ㓟⣲Ḟᦆࡢ⏕ࡌ࡚࠸ࡿ࢔࣑ࣝࢼࡢࡇ࡜࡛࠶ࡿࠋ௒ᅇࡢ཯ᛂ࡛ࡣ࢔࣑ࣝࢼࡢ㓟⣲ࡀ⣔ෆࡢⅣ⣲ࡀ୍㓟໬Ⅳ⣲࡬࡜㓟໬ࡉࢀࡿ㝿࡟౑⏝ࡉࢀ⏕ᡂࡉࢀࡓࡓࡵ࡟⏕ᡂࡋࡓ࡜⪃࠼ࡽࢀࡿࠋࡲࡓࠊேᕤ㯮㖄$*% ࡜࣮࢝࣎ࣥࣈࣛࢵࢡ ࢩ࣮ࢫࢺ 65$ ࡢ ;5' ࡜ 7*$ ࡢ⤖ᯝࢆẚ㍑࠿ࡽேᕤ㯮㖄ࡢ᪉ࡀ㓟⣲Ḟᦆᆺ࢔࣑ࣝࢼࡢࣆ࣮ࢡᙉᗘࡀపࡃࠊṧⅣ⣲㔞ࡀከࡃ࡞ࡗ࡚࠸ࡿࠋ୍⯡ⓗ࡟㯮㖄ᵓ㐀ࡼࡾࡶ࢔ࣔࣝࣇ࢓ࢫᵓ㐀ࡢ᪉ࡀ཯ᛂᛶࡀⰋ࠸࡜㏙࡭ࡽࢀ࡚࠸ࡿࠋᚑࡗ࡚ࠊ࢔ࣔࣝࣇ࢓ࢫᵓ㐀ࡢ࣮࢝࣎ࣥࣈࣛࢵࢡࡢ᪉ࡀ㓟໬ࡉࢀࡿⅣ⣲ࡀከࡃ୍㓟໬Ⅳ⣲࢞ࢫ࡟࡞ࡾ⣔እ࡬᤼ฟࠊࡲࡓࡣ࢔࣑ࣝࢼ࡜཯ᛂࡋ $O2 ࢆ⏕ᡂࡋࡓ࡜⪃࠼ࡽࢀࡿࠋࡑࡢ⤖ᯝୖグ࡟♧ࡋࡓࡼ࠺࡟ேᕤ㯮㖄ࡢ᪉ࡀ㓟⣲Ḟᦆᆺ࢔࣑ࣝࢼࡢᏑᅾࡀᑡ࡞ࡃࠊṧⅣ⣲㔞ࡶከ࠿ࡗࡓ࡜⪃࠼ࡽࢀࡿࠋ ⤖ㄽ
Ⅳ⣲࡜࢔࣑ࣝࢼࢆΰྜࡋ࣐࢖ࢡࣟἼ࡛ Υࡲ࡛ຍ⇕ࡍࡿࡇ࡜࡟ࡼࡾ $O2& ࢆస〇ࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ
ࡲࡓࠊ$O2& ࡢ⏕ᡂ⋡ࡣᚑ᮶ࡢຍ⇕᪉ἲ࡛ຍ⇕ࡍࡿࡼࡾࡶ㧗࠿ࡗࡓࠋࡇࢀࡣ࣐࢖ࢡࣟἼࢆ↷ᑕࡍࡿࡇ࡜࡟ࡼ
ࡾᒁᡤⓗ࡟Ⅳ⣲ࡀ㧗 ࡟࡞ࡾᅛ┦཯ᛂࡀಁ㐍ࡉࢀࡓࡓࡵࡔ࡜⪃࠼ࡽࢀࡿ ཧ⪃ᩥ⊩>@≉㛤 
㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 199 −

ࢼࣀከᏍయᮦᩱ〇㐀ࣉࣟࢭࢫ࡟㛵ࡍࡿ◊✲㸸⮬Ⓨⓗ࣐࢖ࢡࣟ⌫య໬⌧㇟ࢆ⏝࠸ࡓ᪂ወከᏍ㉁⌫≧⢏Ꮚࡢྜᡂ
⟃Ἴ኱Ꮫᩘ⌮≀㉁⣔≀㉁ᕤᏛᇦ 㕥ᮌ ⩏࿴
㸯㸬ࡣࡌࡵ࡟
 ከᏍ㉁ᮦᩱࡣࠊࣇ࢕ࣝࢱ࣮ࡸゐ፹ᢸయࠊ㍍㔞㒊ᮦ➼࡟ᗈࡃ⏝࠸ࡽࢀ࡚࠾ࡾࠊ✀ࠎࡢ〇㐀ࣉࣟࢭࢫࡀᐇ⏝໬ࡉࢀ࡚࠸ࡿࠋࡇࡢ࠺ࡕࠊከᏍ㉁⌫≧㢛⢏ࡣࠊࣁࣥࢻࣜࣥࢢᛶ࡟ඃࢀࡓゐ፹ࡸゐ፹ᢸయࠊࢻࣛࢵࢢࢹࣜࣂ࣮ࣜ࡞࡝ࡢ⸆๣࢟
ࣕࣜ࢔ࠊ㦵⿵ሸᮦᩱ࡬ࡢᛂ⏝ࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋ
ከᏍ㉁⌫≧㢛⢏ࡢస〇࡟ࡣࠊᾮ┦ࣉࣟࢭࢫࡀᗈࡃ⏝࠸ࡽࢀ࡚࠾ࡾࠊ
௦⾲ⓗ࡞ࡶࡢ࡟ࡣࠊࢫࣉ࣮ࣞࢻࣛ࢖ἲࡸ㟼㟁ᄇ㟝⇕ศゎἲࠊἜ୰⁲ୗ࣭ࢤࣝ໬ἲ࡞࡝ࡀ࠶ࡿࠋ࠸ࡎࢀࡶࠊඃࢀࡓࣉ
ࣟࢭࢫ࡛ࡣ࠶ࡿࡀࠊ⁐๣ࡢ⎔ቃᙳ㡪➼ࢆྍ⬟࡞㝈ࡾపῶࡍࡿᚲせࡀ࠶ࡿࠋ ࡇࢀࡲ࡛ᡃࠎࡣࠊࢭ࣑ࣛࢵࢡࢫཎᩱ࡛࠶ࡿⅣ㓟ሷࡸỈ㓟໬≀࣭Ỉ࿴≀ཎᩱ୰࡟ྵࡲࢀࡿ CO2 ࡸ H2O ࢆࠊẼᏍᙧᡂ࡟᭷ຠ฼⏝ࡍࡿࡇ࡜࡟ࡼࡾࠊ㐀Ꮝ๣ࡸ᭷ᶵࣂ࢖ࣥࢲ࣮ࢆῧຍࡍࡿࡇ࡜࡞ࡃࠊ1 Pm ௜㏆࡟㠀ᖖ࡟ࢩ࣮ࣕࣉ࡞⣽Ꮝᚄศᕸࢆࡶࡘࠕ୕ḟඖࢿࢵࢺ࣮࣡ࢡᆺከᏍ㉁ࢭ࣑ࣛࢵࢡࢫࠖࢆ㛤Ⓨࡋ࡚ࡁࡓࠋ᭱㏆࡛ࡣࠊప⇕⭾ᙇᛶࢆ≉ᚩ࡜ࡍࡿᨃࣈࣝࢵ࢝࢖ࢺᆺ໬ྜ≀࡟╔┠ࡋ࡚࠾ࡾࠊMgTi2O5 ࡸ MgFeNbO5 ⤌ᡂࡢከᏍ㉁ࢭ࣑ࣛࢵࢡࢫࡢྜᡂࢆ⾜ࡗ࡚࠸ࡿࠋ
ࡇࡢ㐣⛬࡛ࠊᅽ⢊యࢆసࡽࡎ࡟ΰྜ⢊ᮎࢆ௬↝ࡋᚤ⣽⤌⧊ࢆほᐹࡋࡓ࡜ࡇࢁࠊຍ⇕ࡢࡳ࡛⌫య໬ࡋࡓ୕ḟඖࢿࢵࢺ࣮࣡ࢡᆺከᏍయࡀᚓࡽࢀࡿ࡜࠸࠺㠀ᖖ࡟ࣘࢽ࣮ࢡ࡞⌧㇟ࢆぢฟࡋࡓ[1]ࠋ
 ᮏ◊✲࡛ࡣࠊࡇࡢከᏍ㉁࣐࢖ࢡࣟ⌫≧⢏Ꮚࡢ⮬Ⓨⓗ⏕ᡂᣲື࡟ࡘ࠸࡚ࠊ㧗 ࣮ࣞࢨ࣮㢧ᚤ㙾ࢆ⏝࠸ࡓ㧗 ࡑࡢሙほᐹࢆ⾜࠸ࠊࡑࡢᙧᡂ࣓࢝ࢽࢬ࣒࡟ࡘ࠸᳨࡚ウࡋࡓࠋ㸰㸬ᐇ㦂᪉ἲ
 ฟⓎཎᩱ࡜ࡋ࡚ሷᇶᛶ MgCO3㸦99.9%ࠊ㧗⣧ᗘ໬Ꮫ◊✲ᡤ㸧
ࠊD-Fe2O3 ࠾ࡼࡧ Nb2O5㸦99.9%ࠊ࿴ග⣧⸆㸧ࢆ⏝࠸ࡓࠋሷᇶᛶ MgCO3 ࡟ࡘ࠸࡚ࡣ࠶ࡽ࠿ࡌࡵ TG-DTA ࢆ⏝࠸࡚⢊ᮎ୰ࡢ MgO ⃰ᗘࢆỴᐃࡋࠊMg : Fe : Nb = 1 : 1 : 1㸦ࣔࣝẚ㸧࡜࡞ࡿࡼ࠺࡟⛗㔞ࡋࡓ⢊ᮎࢆ࢚ࢱࣀ࣮ࣝ୰࡛࣮࣑࣎ࣝࣝΰྜࡋࡓࠋ࢚ࣂ࣏࣮ࣞࢱ࡛ῶᅽ஝⇱ᚋࠊ100 ࣓ࢵࢩ
ࣗ㸦< 150 Pm㸧ࡢࢫࢸࣥࣞࢫࡩࡿ࠸ࢆ⏝࠸࡚ࡩࡿ࠸ࡀࡅࢆ⾜ࡗࡓࠋࡇࡢࡼ࠺࡟ࡋ࡚ᚓࡽࢀࡓΰྜ⢊ᮎࢆ࢔࣑ࣝࢼ〇ᑠᆺᐜჾ࡟ධࢀࠊ࢖࣓࣮ࢪ⅔ࢆഛ࠼ࡓ㧗 ࣮ࣞࢨ࣮㢧ᚤ㙾㸦⡿಴〇సᡤ〇 VL2000DX-SVF17SP㸧ࢆ⏝࠸࡚኱Ẽ୰ࠊ
1400°C ࡲ࡛ຍ⇕ほᐹࢆ⾜ࡗࡓࠋ㸱㸬⤖ᯝ࡜⪃ᐹ ほᐹ࡟⏝࠸ࡓΰྜ⢊ᮎࡣࠊ࠶ࡿ⛬ᗘ⌫≧࡟㏆࠸㢛⢏⢊࡛࠶ࡗࡓ[1]ࠋFig. 1 ࡟㧗 ࡑࡢሙほᐹࡢ⤖ᯝࢆ♧ࡍ[2]ࠋࡲ
ࡓࠊຍ⇕࡟క࠺㢛⢏⢏Ꮚࡢ඾ᆺⓗ࡞ࢧ࢖ࢬኚ໬ࢆేࡏ࡚グධࡋ࡚࠸ࡿࠋຍ⇕࡟క࠸ࠊ୺࡟ሷᇶᛶ MgCO3 ࡢ⇕ศゎ࡟క࠺య✚཰⦰ࡀ⏕ࡌࠊ⌫ᙧ໬࣭㒊ศ↝⤖ࡀ㐍⾜ࡍࡿᵝᏊࡀほᐹࡉࢀࡓࠋ1300°C ௜㏆࡛ࡣከࡃࡢ㢛⢏࡟ࡘ࠸࡚ࠊ
య✚཰⦰࡟ຍ࠼ࠊຍ⇕๓ࡼࡾࡶ┿⌫ᗘࡀከᑡྥୖࡋ࡚࠸ࡿᵝᏊࡀほᐹࡉࢀࡓࠋ≉࡟ࠊ኱ࡁࡵࡢ㢛⢏ࡣ⌫ᙧᗘࡀ㧗࠸ᵝᏊࡀほᐹࡉࢀࡓࠋ1350°C ࡲ࡛ࡣከᏍ㉁⌫≧㢛⢏ࡢᙧែࢆಖࡗ࡚࠸ࡓࡀࠊ1400°C ࡛ࡣ㒊ศⓗ࡞⁐⼥࡟ࡼࡾ㢛⢏ྠኈࡢྜయ࣭↝⤖ࡀ㐍ࡴᵝᏊࡀほᐹࡉࢀࡓࠋ ࡇࡢ㧗 ࡑࡢሙほᐹ࡛᫂ࡽ࠿࡟࡞ࡗࡓࡼ࠺࡟ࠊΰྜ⢊ᮎ㢛⢏ࡢ↝ᡂ࡛ࡣࢧ࢖ࢬኚ໬ࡸᙧ≧ࡢኚ໬ࡀ⏕ࡌࡿࠋࡇࡢ
ࡓࡵࠊ᭱⤊ⓗ࡞ SPG ࡢࢧ࢖ࢬไᚚ࡟ࡣࠊከᏍ㉁ࡀࣜࢪࢵࢺ࡟࡞ࡿ↝ᡂᚋࡢศ⣭ࡀࡼࡾ⡆౽࡛࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋᐇ㝿࡟ࠊ↝ᡂᚋࡢศ⣭ࢆከẁ⠠ࢆ⏝࠸࡚⾜ࡗࡓ࡜ࡇࢁࠊ༢ศᩓ࡟㏆࠸⢏ᗘศᕸࢆ᭷ࡍࡿከᏍ㉁࣐࢖ࢡࣟ⌫≧⢏Ꮚࢆ⡆౽࡟ᚓࡿࡇ࡜ࡀ࡛ࡁࡓ[2]ࠋ

− 200 −

Fig. 1

In situ high-temperature confocal laser-scanning microscope observation. Percentages under photos show thediameter change of a typical granule as an example [2].

ㅰ ㎡ ᮏ◊✲ࡣࠊᖹᡂ  ᖺᗘ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲࠾ࡼࡧ⛉◊㈝ᇶ┙◊✲ % JP16H04212 ࡢຓᡂࢆཷࡅ࡚⾜ࢃࢀࡲ
ࡋࡓࠋ

ཧ⪃ᩥ⊩
[1] Y. Suzuki, H. Tokoro and H. Abe, "Self-organized formation of spherical porous granules only by one-step heat-treatment
in MgO-Fe2O3-Nb2O5 system," Mater. Lett., 163, 43-46 (2016).
[2]

Y. Suzuki, H. Abe, H. Yamamoto, K. Ito, H. Inoue, M. Nakamura, "Spherical porous granules in MgO-Fe2O3-Nb2O5
system: In situ observation of formation behavior using high-temperature confocal laser-scanning microscopy," J. Eur.
Ceram. Soc., accepted.
  㸦ඹྠ◊✲ศ㔝 ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 201 −

ࢭ࣑ࣛࢵࢡࢫ〇㐀࡟࠾ࡅࡿᵓ㐀Ⓨ㐩㐣⛬ゎ᫂࡜ࡑࡢไᚚ
㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ ᕤᏛ◊✲⛉ ≀㉁ᮦᩱᕤᏛᑓᨷ
⏣୰ㅍ
1. ⥴ゝ
ࢭ࣑ࣛࢵࢡࢫ〇㐀᫬ࡢෆ㒊ᵓ㐀ኚ໬ࡢྍど໬ᢏ⾡ࡣࠊࡇࢀࡲ࡛ࡢ⤒㦂࡟ࡼࡿ〇㐀ࣉࣟࢭࢫࢆࡼࡾ᫂☜໬ࡍࡿࡇ࡜࡟᭷ຠ࡛࠶ࡿࠋᡃࠎࡣࠊࢭ࣑ࣛࢵࢡࢫ୰ࡢ⢒኱യࡢ᳨ฟࡸࠊࡑࡢⓎ⏕ཎᅉࢆㄪ࡭࡚ࡁࡓࠋ⢒኱യࡣࠊ㢛⢏ࡢࢃࡎ࠿࡞㝽㛫ࢆ㉳Ⅼ࡜ࡋ࡚ࠊ↝⤖࡜࡜ࡶ࡟ᗈࡀࡿࡇ࡜࡛⏕ࡎࡿࠋྠ୍⟠ᡤࡢ⥅⥆ⓗ࡞ほᐹ࠿ࡽࠊ㢛⢏ෆ࠾ࡼࡧ㢛⢏㛫ࡢ↝⤖ࡀ㔜せ࡛࠶ࡾࠊ୰࡛ࡶ⢒኱യ໬ࡍࡿ⟠ᡤࡢ࿘㎶࡛ࡣࠊ኱ᑠࡢ㢛⢏ࡀࡳࡽࢀࠊࡑࡢ୙ᆒ୍࡞↝⤖ࡀࠊ≉࡟⢒኱യ໬࡟ᙳ㡪ࡋ࡚࠸ࡓࠋᡂᙧయࡢᵓ㐀ࡣࠊ㔠ᆺෆࡢᅽຊศᕸࡸ㢛⢏ࡢ✀ࠎࡢᛶ≧ࡀᙳ㡪ࡍࡿࠋࡇࡇ࡛㢛⢏ࡢᛶ≧࡜ࡣࠊᙧ≧ࠊ㢛⢏ᚄࠊᐦᗘࠊ⢏Ꮚ㓄ྥ࡞࡝ࡢ⢏Ꮚ඘ሸᵓ㐀ࠊ࠾ࡼࡧࠊ㢛⢏⾲㠃࡛ࡢࣂ࢖ࣥࢲࡢ೫ᯒ➼࡛࠶ࡿࠋᡂᙧ࠿ࡽ↝⤖యࡢᵓ㐀ኚ໬ࢆ᫂ࡽ࠿࡟ࡍࡿ㝿࡟ࠊ⌧≧ࡢከࡃࡢࣃ࣓࣮ࣛࢱࢆྵࡴᡂᙧయ࡛ࡣࠊࡑࡢཎᅉࢆ≉ᐃࡍࡿࡇ࡜ࡀ㞴ࡋ࠸ࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ⣔ࢆ༢⣧໬ࡋ࡚ࠊ➼኱㢛⢏ࢆ⏝࠸ࡓ⣔࡟࠾࠸࡚ࠊ୍㍈ຍᅽᡂᙧ࡟࠾ࡅࡿᅽຊ࡜┦ᑐᐦᗘศᕸ࡟ࡘ࠸࡚ࠊ᳨ウࡍࡿࡇ࡜࡜ࡋࡓࠋ
2. ᐇ㦂᪉ἲཎᩱ࡟ࡣࠊ㧗⣧ᗘ࢔࣑ࣝࢼ⢊㸦ఫ཭໬Ꮫ〇㸪AKP20㸪ᖹᆒ⢏ᚄ 0.5 ȝm㸧ࢆ⏝࠸ࡓࠋࢫࣉ࣮ࣞࢻࣛ࢖ἲ࡟ࡼࡗ࡚ࠊ
୰ᐇࡢ⌫≧㢛⢏ࢆᚓࡿࡓࡵ࡟ࠊจ㞟ࡋࡓࢫ࣮ࣛࣜࢆㄪ〇ࡋࡓࠋࢫ࣮ࣛࣜ୰ࡢᅛయྵ᭷⋡ࡣ 15vol%࡜ࡋࠊศᩓ๣ࡣ
౑⏝ࡋ࡞࠸ࠋࣂ࢖ࣥࢲ࡟ࡣ࣏ࣜࣅࢽࣝ࢔ࣝࢥ࣮ࣝ㸦PVA㸧ࢆ⏝࠸ࡓࠋῧຍ㔞ࡣ࢔࣑ࣝࢼ࡟ᑐࡋ࡚㔜㔞ẚ࡛ 0.8wt%
࡜ࡋࡓࠋࣂ࢖ࣥࢲỈ⁐ᾮࢆࢫ࣮ࣛࣜࢆ⬺Ἳᚋ࡟ῧຍࡋࠊ1 ᫬㛫᧠ᢾࡋࡓࠋᚓࡽࢀࡓ㢛⢏ࢆ┠㛤ࡁ 63 ȝm ࡜ 75 ȝmࡢ࣓ࢵࢩࣗࢆ⏝࠸࡚⢏ᚄศᕸࡢ⊃ᑠ໬ࢆ⾜ࡗࡓࠋ㢛⢏ࡢ࢟ࣕࣛࢡࢱࣜࢮ࣮ࢩࣙࣥ࡜ࡋ࡚ࠊẼᏍ⋡ ᐃ࡜༢୍㢛⢏ࡢᅽ⦰ᙉᗘホ౯ࢆ⾜ࡗࡓࠋẼᏍ⋡ࡣỈ㖟࣏ࣟࢩ࣓࣮ࢱࢆ⏝࠸࡚ ᐃࡋࡓࠋ༢୍㢛⢏ࡢᅽ⦰ᙉᗘࡣᚤᑠᅽ⦰ヨ㦂ᶵ㸦ᓥὠ〇సᡤᰴᘧ఍♫〇㸪 MCTE-500㸧ࢆ⏝࠸࡚ᐃࡋࡓࠋᡂᙧࡣࠊ࣮࢜ࢺࢢࣛࣇ(ᓥὠ〇సᡤ AG-1) ࢆ⏝࠸࡚⾜ࡗࡓࠋ㔠ᆺ࡟ࡣ┤ᚄ 1cm ࡢ㉸㗰〇㔠ᆺࢆ⏝࠸ࡓࠋᡂᙧయ
ࡢ࢔ࢫ࣌ࢡࢺẚࡀ 1㸸1 ࡜࡞ࡿࡼ࠺࡟ࠊ㢛⢏ࢆ 1.7g ⛗㔞ࡋࠊ㔠ᆺ࡟඘ሸࡋ࡚ࢡࣟࢫ࣊ࢵࢻ㏿ᗘ 1mm/min ࡢ᮲௳ୗ࡛ 100MPa ࡲ࡛ᛂຊࢆ㈇Ⲵࡋࡓࠋ㔠ᆺࡣ୧ᢲࡋ࡛࠶ࡾࠊᅽຊࡣୖୗ࡛ᑐ⛠࡜࡞ࡿࠋᡂᙧయࡢෆ㒊ᵓ㐀ࡣࠊⷧ∦࡟ຍᕤࡋࡓᚋࠊᾐᾮ㏱ග-ඹ↔Ⅼ࣮ࣞࢨ࣮㉮ᰝᆺ⺯ග㢧ᚤ㙾ἲ࡛ほᐹࡋࡓࠋ࢔࣑ࣝࢼ࡜ྠ⛬ᗘࡢᒅᢡ⋡ࢆࡶࡘࢪ࣮ࣚ
ࢻ࣓ࢱࣥ࡟⺯ගᾮࢆΰྜࡉࡏࠊᡂᙧయ࡟ࡋࡳࡇࡲࡏࠊᡂᙧయࢆ
㏱᫂໬ࡉࡏࡓࠋࡇࢀࢆඹ↔Ⅼ࣮ࣞࢨ࣮㉮ᰝᆺ⺯ග㢧ᚤ㙾ἲࢆ⏝࠸࡚ほᐹࢆ⾜ࡗࡓࠋᡂᙧయࡣ㏱࡛᫂࠶ࡿࡓࡵࠊ↔Ⅼ㠃ࢆኚ࠼ࡿࡇ࡜࡛ࠊ㧗ࡉ᪉ྥࡢほᐹࡀྍ⬟࡜࡞ࡿࠋᡂᙧయࡢྛ㒊࡟ࡘ࠸࡚ࠊ
㢛⢏ࡢኚᙧࡢᵝᏊࢆヲ⣽࡟ほᐹࡋࡓࠋ3. ᐇ㦂⤖ᯝ ࢔࣑ࣝࢼ㢛⢏ࡢ SEM ෗┿࠿ࡽࠊ㢛⢏ࡀ⌫≧࡛ࠊศᕸࡀ 20㹼
120 ȝm ࡢᗈ࠸⠊ᅖ࡟ࢃࡓࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡇࢀࢆศ⣭ࡍࡿࡇ࡜࡛ࠊ࠾࠾ࡼࡑ 60 - 70 ȝm ࡢ㢛⢏ࢆᚓࡓࠋ᏶඲࡟ࡣ⠠ศࡅࢆࡍࡿࡇ࡜ࡀ࡛ࡁࡎࠊ60 ȝm ௨ୗࡢᚤᑠ࡞㢛⢏ࡢᏑᅾࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊᾐᾮ㏱ගἲ࡛ࡢほᐹ⤖ᯝࡼࡾࠊPVA ࡣ㢛⢏⾲㠃࡟೫ᯒࡋ࡚࠸ࡿࡇ࡜ࡶࢃ࠿ࡗࡓࠋỈ㖟࣏ࣟࢩ࣓࣮ࢱ࠿ࡽồࡵࡽࢀ− 202 −

Fig.1 㢛⢏ࡢእほ㸦ศ⢏ᚋ㸧bar :50 ȝm 㻌ࡓ㢛⢏ࡢ┦ᑐᐦᗘࡣࠊ37 %࡜࡞ࡗࡓࠋ༢୍㢛⢏ࡢ
ᙉᗘࡣ 0.6MPa ࡜࡞ࡾࠊ୍⯡ⓗ࡞㢛⢏࡜ྠ➼࡛࠶
ࡗࡓࠋ

(a)

(b)

(c)

(d)

Fig.2 ࡟ᡂᙧయࡢྛ㒊ࡢෆ㒊ᵓ㐀ࡢᾐᾮ㏱ග-ඹ
↔Ⅼ࣮ࣞࢨ࣮⺯ග㢧ᚤ㙾⏬ീࢆ♧ࡍࠋ෗┿࡟ࡣࠊ୍౛࡜ࡋ࡚ࠊᡂᙧᅽຊࢆ 60MPa ࡢ᫬ࡢෆ㒊ᵓ㐀ࢆ♧ࡋࡓࠋPVA ࡢᒅᢡ⋡ࡀ࿘ᅖ࡜␗࡞ࡿࡓࡵࠊ㢛⢏ࡢᙧ≧ࡀࡳࡽࢀࡿࠋᡂᙧయࡢᑍἲ࡜㉁㔞࠿ࡽィ⟬ࡉࢀࡿ┦ᑐᐦᗘࡣࠊ57 %࡜࡞ࡗࡓࠋᡂᙧయෆ㒊࡛ࡣ඲యⓗ࡟ኚᙧࡋࡓ㢛⢏ࡢᙧ≧ࡀほᐹࡉࢀࡓࠋ
ࡑࢀࡒࢀ୍㍈ᅽຊ࡟ࡼࡗ࡚ࠊୖୗ᪉ྥ࡟ኚᙧࡋ࡚
࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋ≉࡟ࠊቨ㠃࡛ࣃࣥࢳ㠃ࡼࡾࡶ
1.5mm ୗࡢ㒊఩࡛ࡣ㢛⢏ࡀഴᩳࡋ࡚࠸ࡿࡇ࡜ࢃ
࠿ࡿࠋࡇࢀࡣ㢛⢏࡜ቨ࡜ࡢᦶ᧿࡟ࡼࡿ࡜⪃࠼ࡽࢀࡿࠋḟ࡟ࠊ㢛⢏ࡢ㛗ᚄ࠾ࡼࡧ▷ᚄࢆ ᐃࡋࠊ㢛⢏ࢆ
ኚᙧ 14 㠃య࡜ࡋ࡚௬ᐃࡋ࡚ࠊ㛗ᚄ࡜▷ᚄࢆ ᐃࡋ࡚ࡳ࠿ࡅࡢయ✚ VG ࢆィ⟬ࡋࠊᡂᙧయࡢྛ㒊࡟

Fig.2 ᡂᙧయ㸦pva0.8wt%㸧ෆ㒊ࡢほᐹീࠊ60MPa ༳ຍᚋࠊ࠾ࡅࡿ┦ᑐᐦᗘ ȡk ࢆぢ✚ࡶࡗࡓࠋ(a)ୖゅ㒊ࠊ(b) ࣃࣥࢳ┤ୗࠊ(c)ቨ௜㏆ࠊ(d)୰ኸ㒊

ߩ௞ ൌ

௏೒
௏ಸ

ߩ௚ 

ࡇࡇ࡛ࠊVg ࠾ࡼࡧ ȡ㹥ࡣࠊࡑࢀࡒࢀࠊཎᩱ㢛⢏ࡢయ✚࠾ࡼࡧ┦ᑐᐦᗘ࡛࠶ࡿࠋィ⟬࡛ࡣࠊᡂᙧయࡢ⣙ 500
ȝm ᅄ᪉ẖࡢ㡿ᇦෆࡢ 30 ಶࡢ㢛⢏య✚ࢆ ᐃࡋࠊᖹᆒ໬ࡋࡓࠋ
Fig.3 ࡟ྛ㡿ᇦ࡛ࡢ㢛⢏ࡢ┦ᑐᐦᗘࢆ♧ࡍࠋࡇࡢ࡜ࡁࡢᅽຊࡣ 60MPa ࡛࠶ࡿࠋ ᐃ⟠ᡤࡣࠊᡂᙧయ
ࡢୖഃ༙ศ࡛ࠊ16 ࠿ᡤࡢᖹᆒᐦᗘࢆ♧ࡋࡓࠋᅗ୰ࡢ
Ⅼ⥺࡛ᥥ࠿ࢀࡿ୸ࡣࠊඖࡢཎᩱ㢛⢏ࢆ♧ࡋࠊᶓ㛗ࡢ
භゅᙧࡣኚᙧᚋࡢ㢛⢏ࡢእᙧࢆ♧ࡋࠊ㛗ᚄ▷ᚄࢆ♧ࡍࠋࡲࡓࠊࡑࢀࡒࢀࡢ㸴ゅᙧࡢഴࡁࡣᐇ㝿ࡢほᐹ࠿ࡽ ᐃࡋࡓ㢛⢏ࡢഴࡁࢆ♧ࡋ࡚࠸ࡿࠋୖ㠃୰ኸ࡛ࡣ⣙ 60%࡛ࠊቨഃࡣ 50 ࠿ࡽ 55%࡛ࠊゅ㒊࡛ࡣ 49%ࠊ࡜ࡸࡸపࡵ࡜࡞ࡗࡓࠋࡇࢀࡣቨ࡟ࡼࡿᦶ᧿ࡢᙳ㡪࡛࠶ࡿࠋ୰❧㠃ࡢ୰ኸ㒊࡛ⱝᖸ㧗ࡵ࡟࡞ࡾࠊࡇࢀࡣᅽ
ຊఏ㐩ࡀⰋዲ࡛࠶ࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋࡇࡢᡭἲࢆ
ࡶࡕ࠸ࡿ࡜ࠊྛ㒊࡛ࡢᡂᙧᅽຊࠊ㢛⢏ࡢ✀ࠎࡢ≉ᛶࡢᙳ㡪ࢆㄪ࡭ࡿࡇ࡜ࡀ࡛ࡁࡿࠋ

Fig.3 ᡂᙧయෆ㒊ࡢ┦ᑐᐦᗘศᕸࠊᡂᙧᅽຊࡣ
60MPa(ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 203 −

ᶵᲔⓗᡭἲ䛻䜘䜛ᮍ฼⏝㈨※䛛䜙䛾㔠ᒓᅇ཰䛻㛵䛩䜛◊✲⢊○⿦⨨䜢⏝䛔䛯㞴ฎ⌮㖔▼䛾༢యศ㞳ಁ㐍䛸㖡䛾ᾐฟಁ㐍᳨ウ᪩✄⏣኱Ꮫ㻌 ⌮ᕤᏛ⾡㝔㻌 ⎔ቃ㈨※ᕤᏛ⛉ᯇᒸ ග᫛䞉ᡤ ༓ᬕ
1.

┠ⓗ㏆ᖺ䠈㖡䛾㟂せ㔞䛿ቑຍ䛾୍㏵䜢䛯䛹䜚䠈ᑐ䛩䜛㖔ᒣ⏕⏘㔞䜒ቑຍ䛧䛶䛔䜛䠊䛧䛛䛧䠈㖡䛾ཎᩱ䛷䛒䜛㖡㖔▼䛾ရ఩䛿ῶᑡഴྥ䛻䛒䜚䠈ရ఩䛾ప䛔㞴ฎ⌮㖔▼䛛䜙䛾㖡㈨※䛾⏕⏘ᢏ⾡䛜ồ䜑䜙䜜䛶䛔䜛䠊㖡䛾〇㘐᪉ἲ䛾୍䛴䛷䛒䜛‵ᘧ〇㘐䛿◲㓟䛷㖔▼䜢⁐䛛䛧䛯⁐ᾮ䛛䜙㟁Ẽศゎ䛻䜘䜚㔠ᒓ䜢ᅇ཰䛩䜛ᡭἲ䛷䛒䜚䠈஝ᘧ〇㘐䛸ẚ䜉䛶⡆౽䛷䛒䜛䜒䛾䛾䠈ᾐฟ㏿ᗘ䛜㐜䛔䛸䛔䛖ㄢ㢟䛜䛒䜛䠊䛣䛖䛧䛯ᾐฟ㏿ᗘ䛾㐜䛥䛜䝛䝑䜽䛸䛺䜚䠈㯤㖡㖔䠄CuFeS䠅䛺䛹䛾୍ḟ◲໬㖔䛿‵ᘧ〇㘐䛾㐺⏝䛜ᅔ㞴䛸䛺䛳䛶䛔䜛䠊䛣䜜䜎䛷䛻㯤㖡㖔䜢ᑐ㇟䛻‵ᘧ䝪䞊䝹䝭䝹䜢⏝䛔䛶⢊○䛧䛺䛜䜙ᾐฟヨ㦂䜢⾜䛖䛣䛸䛷䠈◲໬㖡䛛䜙䛾 Cu 䛾ᾐฟ⋡䛾ྥୖ䛜ሗ࿌䛥䜜䛶䛔䜛 1)䠊
䛧䛛䛧䠈⢊○䛧䛺䛜䜙䛾㛗᫬㛫䛾ᾐฟヨ㦂䛿ከ኱䛺⢊○䝁䝇䝖䛜ᚲせ䛸䛺䜛䠊ᮏ◊✲䛷䛿䠈‵ᘧ〇㘐䛾๓ẁ䛾⢊○䝥䝻䝉䝇䛻╔┠䛧䠈ᶵᲔⓗฎ⌮䛻䜘䜚䛒䜙䛛䛨䜑ᚤ⢊○䛧䛯◲໬㖡䛛䜙䛾 Cu 䛾ᾐฟ≉ᛶ䛾ྥୖ䜢ヨ䜏
䛯䠊
2.

ᐇ㦂᪉ἲ

2.1㻌 ᐇ㦂ヨᩱ㖔≀๭ྜ䛜㖡ྵ᭷㖔≀ 1.54 %䠈⬦▼䛸䛧䛶㯤㕲㖔 8.53 %䠈▼ⱥ 59.7 %䠈㛗▼ 27.5 %䠈䛭䛾௚ 2.60 %䜢ྵ䜐㖡㖔▼䜢ᑐ㇟䛸䛧䛶⢒⢊○䜢⾜䛔䠈⠠ศ䛡䛻䜘䜚 75~3000 ȝm 䛻⢏ᗘㄪᩚ䛧䛯䜒䛾䜢ᐇ㦂ヨᩱ䛸䛧䛶⏝䛔䛯䠊⢒⢊○ᚋ䛾㖡㖔▼䜢⢊○๓ヨᩱ䛸䛧䛶䠈ᚤ⢊○ᚋヨᩱ䛸䛾ẚ㍑ホ౯䜢⾜䛳䛯䠊ᐇ㦂ヨᩱ䛻ᑐ䛧䛶䠈㉮ᰝᆺ⺯ග X ⥺ (XRF) 䛻䜘䜛ඖ⣲๭ྜ䛾 ᐃ䠈㖔≀⢏Ꮚゎᯒ (MLA) 䛻䜘䜛㖔≀⤌ᡂ๭ྜ䛾 ᐃ䜢⾜䛳䛯䠊
2.2㻌 ⢊○ᐇ㦂ᶵᲔⓗฎ⌮䛸䛧䛶䠈㐟ᫍ䝪䞊䝹䝭䝹 (䝝䜲䝆䞊BX254E, ᰩᮏ㚩ᕤᡤ〇) 䜢⏝䛔䛯䠊⢊○፹య䛸䛧䛶 ĳ10
mm 䛾䝆䝹䝁䝙䜰䝪䞊䝹䜢⏝䛔䠈ᅇ㌿ᩘ䜢䝟䝷䝯䞊䝍䛸䛧䛶஝ᘧ䛷 60 min ⢊○ฎ⌮䜢᪋䛧䛯䠊ẚ㍑䛸䛧䛶䝪䞊䝹䝭䝹䛻䜘䜛⢊○䜢⾜䛳䛯䠊ᚓ䜙䜜䛯ᚤ⢊○ᚋヨᩱ䛻ᑐ䛧䛶䠈X ⥺ᅇᢡ䠄XRD䠅䛻䜘䜛┦ྠᐃ䠈⢏Ꮚᚄศᕸ䛾ᐃ䠈ẚ⾲㠃✚䛾 ᐃ䠈X ⥺྾཰ᚤ⣽ᵓ㐀ゎᯒ (XAFS) 䛻䜘䜛⤖ᬗᵓ㐀ኚ໬䛾 ᐃ䜢⾜䛳䛯䠊
2.3㻌 ᾐฟヨ㦂ᾐฟ⁐ᾮ࡜ࡋ࡚0.06 mol/L ◲㓟ࢆ⏝࠸ࡓ㸬ᾐฟヨ㦂ࡢࢧࣥࣉࣜࣥࢢࡣ1~96᫬㛫࡛⾜࠸㸪ྠ᫬࡟⁐ᾮࡢpH ࢆ ᐃࡋࡓ㸬ICP㸦SPS7800, ࢭ࢖ࢥ࣮࢖ࣥࢫࢶࣝ〇㸧࡟ࡼࡿ Cu ࡢ⃰ᗘ ᐃࢆ⾜ࡗࡓ㸬࡞࠾㸪ᶵᲔⓗฎ⌮࡟ࡼࡿ⢊○ࡢᙳ㡪ࢆホ౯ࡍࡿࡓࡵ㸪⢊○๓ヨᩱ࡟ᑐࡋ࡚ࡶᾐฟヨ㦂ࢆ⾜ࡗࡓ㸬3.

ᐇ㦂⤖ᯝ⢊○ᚋヨᩱ䛾 Cu 䛾ᾐฟヨ㦂䛾⤖ᯝ䜢ᅗ 1 䛻♧䛩䠊䛔䛪䜜䛾ᅇ㌿ᩘ䛻䛚䛔䛶䜒⢊○๓䜘䜚 Cu 䛾ᾐฟ≉ᛶ䛜ྥୖ䛧䛯䠊≉䛻 860 rpm 䛷䛾⢊○ヨᩱ䛜㧗䛔 Cu ᅇ཰⋡䜢♧䛧䠈96 ᫬㛫ᚋ䛷 100 %㏆䛟䜎䛷㐩䛧䛯䠊䜎䛯䠈ึᮇᾐฟ㏿ᗘ䜒௚䛾ヨᩱ䜘䜚䜒㧗䛟䠈8 ᫬㛫ᚋ䛷 80 %௨ୖ䛻㐩䛧䛯䠊ᚤ⢊○䛻䜘䜚⢏Ꮚᚄ䛜ῶᑡ䛧ẚ⾲㠃✚䛜− 204 −

ቑຍ䛧䛯䛣䛸䛸䠈ᶵᲔⓗฎ⌮䛻䜘䜛◲໬㖡䛾⾲㠃ᵓ㐀䛾Ḟ㝗䛻䜘䜚ᾐฟᣲື䛜ಁ㐍䛧䛯䛸⪃䛘䜙䜜䜛䠊

ᅗ1㻌 㐟ᫍ䝪䞊䝹䝭䝹ฎ⌮ᚋヨᩱ䛾 㻯㼡 ᅇ཰⋡㻌㻌⢊○ᚋヨᩱ䛾 XRD 䝟䝍䞊䞁䜢ᅗ 2 䛻♧䛩䠊㐟ᫍ䝪䞊䝹䝭䝹䛻䜘䜚䠈◲໬㖡㖔≀䛷䛒䜛㖡⸛ (covellite, CuS)䛾 (101) 㠃䛾䝢䞊䜽ᙉᗘ䛜㑅ᢥⓗ䛻పୗ䛧䠈ᅇ㌿ᩘ䛾ቑຍ䛻䜘䜚᏶඲䛻ᾘኻ䛩䜛䛣䛸䛜☜ㄆ䛥䜜䛯䠊䜎䛯䠈Cu➃䛛䜙䛾 XAFS ゎᯒ䛻䜘䜚䠈㐟ᫍ䝪䞊䝹䝭䝹䛷䛿ཎᏊ㛫㊥㞳䛿ኚ䜟䜙䛪䠈㞄᥋䛩䜛 Cu ཎᏊ䛾㓄఩ᩘ䛜ῶᑡ䛧䛯䛣䛸䛜☜ㄆ䛥䜜䛯䠊䛣䛾䛣䛸䛛䜙䠈Cu 䛾ᾐฟ≉ᛶ䛾ྥୖ䛿 covellite 䛾┦㌿⛣䛷䛿䛺䛟䠈άᛶ⾲㠃䛾ቑຍ䛻䜘䜛䜒䛾䛸⪃䛘䜙䜜䜛䠊ᅗ㻞㻌 㐟ᫍ䝪䞊䝹䝭䝹ฎ⌮ᚋヨᩱ䛾 㼄㻾㻰 䝟䝍䞊䞁㻌㻌4.

⤖ㄽᮏ◊✲䛷䛿䠈㐟ᫍ䝪䞊䝹䝭䝹䜢⏝䛔䛶㞴ฎ⌮㖔▼䜢⢊○䛩䜛䛣䛸䛷䠈◲໬㖡䛛䜙䛾 Cu 䛾ᾐฟ≉ᛶ䛜ಁ㐍䛩䜛䛣䛸䛜䜟䛛䛳䛯䠊䜎䛯䠈ᶵᲔⓗฎ⌮䛻䜘䜚䠈covellite 䛾 (101) 㠃䛛䜙⤖ᬗᵓ㐀䛾◚ቯ䛜㑅ᢥⓗ䛻㉳䛣䜚䠈
covellite 䛾┦㌿⛣䛷䛿䛺䛟άᛶ⾲㠃䛜ቑຍ䛩䜛䛣䛸䛷 Cu 䛾ᾐฟᣲື䛜ಁ㐍䛥䜜䜛䛣䛸䛜䜟䛛䛳䛯䠊㻌ཧ⪃ᩥ⊩㻌1) Mitani, Y. et al., Enhancement of Copper Leaching from Chalcopyrite Using Wet-type Ball Mill, J. Japan
Soc. Powder Technol., 52, 723-729 (2015).
㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢹ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 205 −

䝣䝑໬䜰䞁䝰䝙䜴䝮ゐ፹䛻䜘䜛䝘䝜䝅䝸䜹୰✵⢏Ꮚ䛾▷᫬㛫ྜᡂ㻌㻌ྡྂᒇᕤᴗ኱Ꮫඛ㐍䝉䝷䝭䝑䜽䝇◊✲䝉䞁䝍䞊㻌⸨㻌 ṇ╩㻌㻌㻝㻚 ┠ⓗ㻌
䝘䝜䝃䜲䝈䛾Ꮝ䜢䜒䛴୰✵⢏Ꮚ䛿䠈䛭䛾䝴䝙䞊䜽䛺ᵓ㐀䛛䜙䠈᩿⇕ᛶ䠈⤯⦕ᛶ䠈㧗ẚ⾲㠃✚䠈≀㉁ෆໟ⬟䠈ගᏛ≉ᛶ䛺䛹ᵝ䚻䛺ᶵ⬟ᛶ䜢᭷䛩䜛䛣䛸䛜ᮇᚅ䛷䛝䜛䠊ⴭ⪅䜙䛿Ⅳ㓟䜹䝹䝅䜴䝮㻔㻯㼍㻯㻻㻟㻕䜢↓ᶵ䝔䞁䝥䝺䞊䝖䛸䛧䛯䝘䝜୰✵⢏Ꮚ䛾ྜᡂ㼇㻝㼉䜢㛤Ⓨ䛧䛯䠊㻯㼍㻯㻻㻟 䜢཯ᛂ⁐፹䛻ศᩓ䛧䛯ᚋ䠈䝅䜵䝹※䛸䛺䜛䝔䝖䝷䜶䝖䜻䝅䝅䝷䞁㻔㼀㻱㻻㻿㻕䛸ゐ፹䜢ຍ䛘䠈㻯㼍㻯㻻㻟 ⾲㠃䛻䝅䝸䜹䝅䜵䝹䜢ᙧᡂ䛥䛫䜛䠊⏕ᡂ䛧䛯䝁䜰䝅䜵䝹⢏Ꮚ䜢㓟ฎ⌮䛩䜛䛣䛸䛷 㻯㼍㻯㻻㻟 䛾䜏䛜⁐ゎ㝖ཤ䛥䜜୰✵ᵓ㐀䛜ᙧᡂ䛩䜛䠊ⴭ⪅䜙䛿䛣䜜䜎䛷䛻䚸ᮏᡭἲ䜢䜒䛸䛻ෑ㢌䛷⤂௓䛧䛯䝘䝜୰✵ᵓ㐀䛾タィ䜢⾜䛳䛶䛝䛯䚹㻯㼍㻯㻻㻟 䛿䝘䝜䝃䜲䝈䛷⢏Ꮚᚄไᚚ䛩䜛䛣䛸䛜ྍ⬟䛷䛒䜛䚹୰✵⢏Ꮚ䛾ᙧ≧䛻ຍ䛘䛶䚸ᚄ䜒⮬⏤䛻ไᚚ䛩䜛䛣䛸䛜䛷䛝䜛䚹䝅䜵䝹䛿䝅䝸䜹※䛷䛒䜛䜰䝹䝁䜻䝅䝗䛾䝌䝹䝀䝹཯ᛂ䛛䜙䛺䜛䝅䝸䜹䝁䞊䝔䜱䞁䜾ᒙ䛷䛒䜛䚹ᗘ䜔ῧຍ㔞䛺䛹ᵝ䚻䛺䝌䝹䝀䝹཯ᛂ᮲௳䜢᭱㐺໬䛩䜛䛣䛸䛻䜘䛳䛶䝅䝸䜹䝅䜵䝹䛾ᚤ⣽ᵓ㐀䜢タィ䛩䜛䛣䛸䜒ྍ⬟䛷䛒䜛䚹↓ᶵ䝔䞁䝥䝺䞊䝖ἲ䛷ྜᡂ䛧䛯䝅䝸䜹䝅䜵䝹䛿䚸䝔䞁䝥䝺䞊䝖㝖ཤ䛾㝿䛻Ⓨ⏕䛩䜛஧㓟໬Ⅳ⣲䛜㏻㐣䛷䛝䜛䛟䜙䛔䛾㉸ᚤ⣽䛺䝬䜲䜽䝻Ꮝ䛜㛤䛔䛶䛔䜛䛣䛸䛜䜟䛛䛳䛶䛔䜛㼇㻝㼉䚹౛䛘䜀䚸཯ᛂ⁐ᾮ䛾 㼜㻴 䛸཯ᛂ᫬㛫䜢㐺ษ䛻⤌䜏ྜ䜟䛫䜛䛣䛸䛻䜘䛳䛶䚸䝅䝸䜹䝅䜵䝹䛾䜏䛛䛡ᐦᗘ䜢 㻝㻚㻠㻙㻞㻚㻞㻌㼓㻛㼏㼙㻟 㛫䛷ไᚚ䛷䛝䜛䛣䛸䜔㼇㻞㼉䚸⏺㠃άᛶ๣䛾䝭䝉䝹ᙧᡂ⬟䜢฼⏝䛧䚸䝯䝋Ꮝ䜢ᣢ䛴୰✵⢏Ꮚ䛾ྜᡂἲ䜒ሗ࿌䛧䛶䛔䜛㼇㻟㼉䚹䝅䜵䝹䛻䝘䝜䝃䜲䝈䛾኱䛝䛺Ꮝ䜢ᙧᡂ䛥䛫䜛䛣䛸䜒ྍ⬟䛷䛒䜛䚹㻌䛣䛾䜘䛖䛻䚸↓ᶵ䝔䞁䝥䝺䞊䝖ἲ䜢⏝䛔䛶ᡤᮃ䛾ᶵ⬟ᛶ䛻≉໬䛧䛯䝘䝜୰✵⢏Ꮚ䛾ྜᡂ䛜ྍ⬟䛷䛒䜛䚹Ỉ㓟໬䜰䞁䝰䝙䜴䝮䛿䚸䝅䝸䜹※䛷䛒䜛䝅䝸䝁䞁䜰䝹䝁䜻䝅䝗㻔㼀㻱㻻㻿㻕䛾䝌䝹䝀䝹཯ᛂゐ፹䛸䛧䛶䜘䛟⏝䛔䜙䜜䛶䛔䜛䚹↓ᶵ䝔䞁䝥䝺䞊䝖ἲ䛻䛚䛔䛶䚸䝅䝸䜹䝅䜵䝹ཌ䚸⣽Ꮝᚄ䚸䜏䛛䛡ᐦᗘ䜢タィ䛩䜛䛯䜑䛻䛿䚸䝌䝹䝀䝹཯ᛂ᮲௳䛸䛧䛶཯ᛂᗘ䚸ゐ፹㔞䚸཯ᛂ᫬㛫䛺䛹䜢᭱㐺໬䛩䜛ᚲせ䛜䛒䜛䚹㼀㻱㻻㻿 䛿ẚ㍑ⓗ㧗౯䛺ヨ⸆䛷䛒䜚䚸཯ᛂᾮ୰䛻ῧຍ䛧䛯 㼀㻱㻻㻿 䛜䝅䝸䜹䝅䜵䝹䜈䛩䜉䛶㌿໬䛩䜛䛣䛸䛜ᮃ䜎䛧䛔䚹䛭䛾䛯䜑䛻 㻺㻴㻟 ゐ፹ῧຍ㔞䜔཯ᛂ᫬㛫䜢ቑຍ䛥䛫䛶䜒䚸㻯㼍㻯㻻㻟 䝔䞁䝥䝺䞊䝖⾲㠃䜈䛾䝅䝸䜹䝁䞊䝔䜱䞁䜾䜘䜚䜒䚸཯ᛂᾮ୰䛷䝅䝸䜹୰ᐇ⢏Ꮚ䛾⏕ᡂ䛜ಁ㐍䛥䜜䜛䚹䛭䛾䛯䜑䚸㼀㻱㻻㻿 䛾ຍỈศゎ䚸⦰ྜ཯ᛂ䛜䚸㻯㼍㻯㻻㻟 䝔䞁䝥䝺䞊䝖⾲㠃䛷㑅ᢥⓗ䛻㉳䛣䜛䜘䛖䛺ゐ፹䛾㑅ᢥ䛜ᚲせ䛸䛺䜛䚹㻌䝌䝹䝀䝹ἲ䛻㛵䛩䜛✀䚻ሗ࿌䛷䛿ཎᏊ༙ᚄ䛾ᑠ䛥䛔䝣䝑⣲⣔໬ྜ≀䜢⏝䛔䜛䛸ຍỈศゎ㏿ᗘ䛜㏿䛟䛺䜛䛣䛸䛜䜟䛛䛳䛶䛔䜛䠊䛣䜜䜎䛷䛻䚸䝌䝹䝀䝹཯ᛂゐ፹䛸䛧䛶ᵝ䚻䛺㓟䚸ሷᇶゐ፹䛜⏝䛔䜙䜜䛶䛝䛯䚹䝣䝑⣲䜲䜸䞁䛿䚸䛭䛾ཎᏊ༙ᚄ䛾ᑠ䛥䛥䛛䜙䚸㼀㻱㻻㻿 䛾 㻿㼕 䜈ồ᰾ᨷᧁ䛧䜔䛩䛟䚸㼀㻱㻻㻿 䛾ຍỈศゎ཯ᛂ䜢ಁ㐍䛩䜛䛣䛸䛜▱䜙䜜䛶䛔䜛䚹㻼㼛㼜㼑 䜙㼇㻠㼉䛿䚸䝣䝑⣲⣔ゐ፹䛷䛒䜛䝣䝑໬Ỉ⣲㻔㻴㻲㻕䚸䝣䝑໬䜹䝸䜴䝮㻔㻷㻲㻕䛜 㻺㻴㻟 䛸ẚ㍑䛧䛶 㼀㻱㻻㻿 䛾ຍỈศゎ䚸⦰ྜ཯ᛂ䜢㣕㌍ⓗ䛻ಁ㐍䛩䜛䛣䛸䜢ሗ࿌䛧䛯䚹ලయⓗ䛻䛿䚸㻴㻲䚸㻷㻲䚸㻺㻴㻟 ⣔䛻䛚䛔䛶䝅䝸䜹䝀䝹䛜⏕ᡂ䛩䜛䜎䛷䛾᫬㛫䛜 㻢 ศ䚸㻝㻞 ᫬㛫䚸㻝㻜㻜㻜 ᫬㛫䛷䛒䛳䛯䚹௚䛻䜒䚸䝣䝑໬䜰䞁䝰䝙䜴䝮㻔㻺㻴㻟㻕䚸䝣䝑໬䝘䝖䝸䜴䝮㻔㻺㼍㻲㻕䛺䛹䛾ゐ፹䛜䝌䝹䝀䝹཯ᛂ䜢ಁ㐍䛥䛫䜛䛣䛸䛜ሗ࿌䛥䜜䛶䛔䜛䚹㻌ᮏ◊✲䛷䛿䚸㻯㼍㻯㻻㻟 䝔䞁䝥䝺䞊䝖䛜⁐ゎ䛧䛺䛔ሷᇶゐ፹䛻㝈ᐃ䛧䛶 㻷㻲 䜔 㻺㻴㻠㻲 䜢㑅ᢥ䛧䚸ྛゐ፹⣔䛻䛚䛡䜛 㼀㻱㻻㻿䛾䝅䝸䜹䜈䛾㌿໬⋡䜢ඖ⣲ศᯒ㻔㻱㻰㻿㻕䛻䜘䜚ホ౯䛧䛯䚹ᚑ᮶⏝䛔䜙䜜䛶䛝䛯 㻺㻴㻟 䛸䚸䝣䝑⣲⣔ゐ፹䛷䛒䜛 㻷㻲 䜔 㻺㻴㻠㻲 ⣔䜢ẚ㍑䛩䜛䛣䛸䛷䚸䜰䞁䝰䝙䜴䝮䜲䜸䞁㻔㻺㻴㻠㻗㻕䜔 㻲㻙䛜䚸㻯㼍㻯㻻㻟 䝔䞁䝥䝺䞊䝖⾲㠃䛻䛚䛡䜛䝅䝸䜹䝁䞊䝔䜱䞁䜾䛻୚䛘䜛ᙳ㡪䛻䛴䛔䛶ㄪ䜉䛯䚹㻌
㻌㻞㻚 ◊✲᪉ἲ㻌㻯㼍㻯㻻㻟 䝘䝜⢏Ꮚ䜢䜶䝍䝜䞊䝹㻔㻱㼠㻻㻴㻕䛻ศᩓᚋ䠈㼀㻱㻻㻿䠈ྛゐ፹䠈⵨␃Ỉ䜢ຍ䛘䠈ᡤᐃ᫬㛫཯ᛂ䛥䛫䝁䜰䝅䜵䝹⢏Ꮚ䜢ᚓ䛯䠊ᕼ㔘ሷ㓟Ỉ⁐ᾮ䛷 㻯㼍㻯㻻㻟 䝔䞁䝥䝺䞊䝖䜢㝖ཤᚋ䠈Ὑί䠈஝⇱䛧䛶୰✵⢏Ꮚ䜢ᚓ䛯䠊㼀㻱㻻㻿㻛㻱㼠㻻㻴㻛ゐ፹㻛㻴㻞㻻 䛾ΰྜ⁐ᾮ䛸䠈䛣䜜䛻 㻯㼍㻯㻻㻟 ⢏Ꮚ䜢ῧຍ㻔䜎䛯䛿↓ῧຍ㻕䛧䛯ศᩓᾮ䜢ㄪ〇䛧䠈᣺┞ᶵ䛷ᡤᐃ᫬㛫཯ᛂᚋ䠈⣲᪩䛟ྛᾮ䛾ୖ⃈䜏䜢䠈䝅䝸䞁䝆䝣䜱䝹䝍䞊䜢㏻䛧䛶᥇ྲྀ䛧䛯䠊ୖ⃈䜏䛻ྵ䜎䜜䜛 㻿㼕 㔞㻔㻩ᮍ཯ᛂ 㼀㻱㻻㻿 㔞㻕䜢䜶䝛䝹䜼䞊ศᩓᆺ 㼄 ⥺ศᯒ㻔㻱㻰㻿㻕䛻䜘䜚ホ౯䛧䠈ྛ཯ᛂ᫬㛫䛻䛚䛡䜛 㼀㻱㻻㻿 ᾘ㈝⋡䜢⟬ฟ䛧䛯䠊㻌− 206 −

㻌㻟㻚 ◊✲⤖ᯝ㻌㻯㼍㻯㻻㻟 ῧຍ㻛↓ῧຍ䛾 㻺㻴㻟 ゐ፹⣔䛻䛚䛡䜛 㼀㻱㻻㻿 ᾘ㈝⋡䜢཯ᛂ᫬㛫䛤䛸䛻䝥䝻䝑䝖䛩䜛䛸䠈཯ᛂ᫬㛫 㻢㻜 ศ௨ෆ䛻ᛴ⃭䛻ቑຍ䠈㻤㻜㻑䛻฿㐩䛧䠈䛭䛾ᚋ⦆䜔䛛䛻ୖ᪼䠈㻝㻞㻜 ศ䛷䜋䜌 㻝㻜㻜㻑䛻㐩䛧䛯䠊㻢㻜 ศ௨ෆ䛻ぢ䜙䜜䛯ᛴ⃭䛺ᾘ㈝⋡䛾ቑຍ䛿䠈㻯㼍㻯㻻㻟 䛜Ꮡᅾ䛩䜛䜋䛖䛜䜘䜚㏿䛔䠊㻯㼍㻯㻻㻟 䛜཯ᛂᾮ୰䛻Ꮡᅾ䛧䛯䛣䛸䛻䜘䛳䛶 㼀㻱㻻㻿 ຍỈศゎ㏿ᗘ䛾ቑຍ䛜ぢ䜙䜜䛯䛾䛿䠈㻺㻴㻠㻗䜎䛯䛿 㻻㻴㻙䛾Ꮡᅾ䛻䜘䜚 㻯㼍㻯㻻㻟 ⾲㠃䛷㑅ᢥⓗ䛻 㼀㻱㻻㻿 ຍỈศゎ䛜㉳䛣䛳䛯䛾䛷䛿䛺䛔䛛䛸᥎ᐹ䛥䜜䜛䠊䛭䛣䛷䠈㻻㻴㻙䛾௦䜟䜚䛻 㻲㻙䜢᭷䛩䜛 㻺㻴㻠㻲 ゐ፹⣔䛻䛴䛔䛶ྠᵝ䛻 㼀㻱㻻㻿 ᾘ㈝⋡䜢ホ౯䛧䛯䠊㻯㼍㻯㻻㻟 ୙ᅾ䠈Ꮡᅾୗ䠈㻺㻴㻠㻲 ゐ፹⣔䛻䛚䛡䜛 㼀㻱㻻㻿 ᾘ㈝⋡䜢཯ᛂ᫬㛫 㻜䡚㻥㻜 ศ㛫䛷䝥䝻䝑䝖䛩䜛䛸䠈㻺㻴㻟 ゐ፹⣔䛸ẚ㍑䛧䛶 㻺㻴㻠㻲 ゐ፹⣔䛷䛿䠈㼀㻱㻻㻿 ᾘ㈝⋡䛜▷᫬㛫䛷㣕㌍ⓗ䛻ቑຍ䛧䛯䠊≉䛻 㻯㼍㻯㻻㻟 ୙ᅾୗ䛷䛿䠈཯ᛂ᫬㛫 㻡 ศ䛷 㼀㻱㻻㻿 ᾘ㈝⋡䛜 㻝㻜㻜㻑䛻㐩䛧䛯䠊㻯㼍㻯㻻㻟 Ꮡᅾୗ䛷䜒 㻝㻡ศᚋ䛻䛩䜉䛶䛾 㼀㻱㻻㻿 䛜ᾘ㈝䛥䜜䛯䠊㻯㼍㻯㻻㻟 䛜Ꮡᅾ䛧䛶䜒䠈཯ᛂ᫬㛫 㻝㻡 ศ䛸䛔䛖▷᫬㛫䛷 㼀㻱㻻㻿 䛜ᾘ㈝䛥䜜䜛䛣䛸䛛䜙㻺㻴㻠㻗䛿 㻯㼍㻯㻻㻟 ⾲㠃䛻㞟䜎䜚䜔䛩䛟䠈㼀㻱㻻㻿 䛾ຍỈศゎ䜢 㻯㼍㻯㻻㻟 ⾲㠃䛷ಁ㐍䛧䜔䛩䛔䛸⪃䛘䜙䜜䜛䠊䝣䝑⣲⣔ゐ፹䛷䛒䜛䛜䠈㻺㻴㻠㻗䜢ᣢ䛯䛺䛔 㻷㻲 ゐ፹䛻䛴䛔䛶䜒ྠᵝ䛻ホ౯䛧䛯䠊㻯㼍㻯㻻㻟 ୙ᅾ䠈Ꮡᅾୗ䠈㻷㻲 ゐ፹䛻䛚䛡䜛 㼀㻱㻻㻿 ᾘ㈝⋡䜢཯ᛂ᫬㛫 㻜ศ䛛䜙 㻝㻞㻜 ศ㛫䛷䝥䝻䝑䝖䛧䛯䠊཯ᛂ᫬㛫 㻟㻜 ศᚋ䠈㻯㼍㻯㻻㻟 ୙ᅾୗ䛾 㼀㻱㻻㻿 ᾘ㈝⋡䛿⣲᪩䛟ୖ᪼䛧䛯䠊䛣䛾ୖ᪼㏿ᗘ䛿 㻺㻴㻟⣔䜘䜚䜒᪩䛔䠊䛭䛾ᚋ䠈⦆䜔䛛䛻ୖ᪼䜢⥆䛡 㻥㻜㻑䛻㐩䛧䛯䠊㻯㼍㻯㻻㻟 Ꮡᅾୗ䛷䛿䠈཯ᛂ᫬㛫 㻢㻜 ศ䜎䛷ୖ᪼䛧䛯ᚋ䠈⦆䜔䛛䛻ୖ᪼䛧 㻝㻞㻜 ศᚋ䛻 㻣㻜㻑䛻㐩䛧䛯䠊䛣䛾⤖ᯝ䛛䜙䠈㻲㻙䛜 㼀㻱㻻㻿 䛾ຍỈศゎ䜢ಁ㐍䛩䜛䛣䛸䛿᫂䜙䛛䛷䛒䜛䛜䠈㻯㼍㻯㻻㻟 䝔䞁䝥䝺䞊䝖䛜Ꮡᅾ䛩䜛ሙྜ䛿䜹䝏䜸䞁䛾㑅ᢥ䛜㔜せ䛷䛒䜛䛣䛸䛜䜟䛛䜛䠊㻺㻴㻠㻗䛾཯ᛂ䜈䛾ᐤ୚䛻䛴䛔䛶㆟ㄽ䛩䜛䚹㻯㼍㻯㻻㻟 䝔䞁䝥䝺䞊䝖⾲㠃䛷䛿䚸㻯㼍㻞㻗䜎䛯䛿 㻯㻻㻟㻞㻙䛜Ꮡᅾ䛩䜛䚹㻺㼑㼍㼓㼘㼑 䜙䛿䚸㻯㼍㻯㻻㻟 ⾲㠃䛾 㻯㼍㻞㻗䝃䜲䝖䛿 㻺㻴㻟 ศᏊ䛸ᙅ䛔┦஫స⏝䜢᭷䛩䜛䛣䛸䜢 㻲㼀㻙㻵㻾 ศᯒ䛻䜘䜚᫂䜙䛛䛻䛧䛯㼇㻡㼉䚹↓ᶵ䝔䞁䝥䝺䞊䝖ἲ䛻䛚䛔䛶䜒䚸㻯㼍㻯㻻㻟 ⾲㠃䛻䛿 㻺㻴㻠㻗䛜㞟䜎䜚䜔䛩䛔䛸᥎ 䛷䛝䜛䚹䛴䜎䜚䚸㼀㻱㻻㻿 䛾ຍỈศゎ䚸⦰ྜ཯ᛂ䛜䚸㻯㼍㻯㻻㻟 ⾲㠃㏆ഐ䛷㑅ᢥⓗ䛻㉳䛣䜚䜔䛩䛟䚸㻯㼍㻯㻻㻟 ⾲㠃䛷䝅䝸䜹䝁䞊䝔䜱䞁䜾䛜ᙧᡂ䛥䜜䜛䛸䛔䛖䛣䛸䛷䛒䜛䚹䛣䜜䛿䚸㻯㼍㻯㻻㻟 䛸 㻺㻴㻠㻗㛫䛾඾ᆺⓗ䛺⌧㇟䛷䛒䜛䚹౛䛘䜀 㻯㼍㻯㻻㻟 䛾௦䜟䜚䛻䚸䝫䝸䝇䝏䝺䞁㻔㻼㻿㻕⢏Ꮚ䜢䝔䞁䝥䝺䞊䝖䛸䛧䛶୰✵⢏Ꮚ䜢ྜᡂ䛩䜛䛸䚸୰✵⢏Ꮚ䛿⏕ᡂ䛩䜛䛜䝅䜵䝹ᵓ㐀䛿ᆒ୍䛷䛿䛺䛟䚸ከ䛟䛾䝅䝸䜹୰ᐇ⢏Ꮚ䛾⏕ᡂ䜒ぢ䜙䜜䜛䚹䛣䜜䛿䚸㻺㻴㻠㻗䛸 㻼㻿 ⾲㠃䛾┦஫స⏝䛜ᙅ䛟䚸㼀㻱㻻㻿 ຍỈศゎ䚸⦰ྜ䛜 㻼㻿 ⾲㠃䛾䜏䛺䜙䛪཯ᛂᾮ୰䛷䜒㉳䛣䜛䛯䜑䛷䛒䜛䚹㻌㻌㻠㻚 ⤖ㄽ㻌
ᮏ✏䛷䛿䚸↓ᶵ䝔䞁䝥䝺䞊䝖ἲ䜢䜒䛸䛻䚸㻺㻴㻠㻲 ゐ፹䜢⏝䛔䜛䛣䛸䛻䜘䜛䝘䝜୰✵⢏Ꮚ䛾㎿㏿ྜᡂἲ䜢ᥦ᱌䛧䛯䚹ᚑ᮶㻺㻴㻟 ゐ፹䜢⏝䛔䜛⣔䛷䛿 㻝㻞㻜 ศ䛾ྜᡂ᫬㛫䜢ᚲせ䛸䛧䛯䛜䚸㻺㻴㻠㻲 ゐ፹䜢⏝䛔䛯䛣䛸䛻䜘䜚 㻝㻡 ศ䛾ྜᡂ᫬㛫䛷 㼀㻱㻻㻿 䛾ᾘ㈝⋡䛜 㻝㻜㻜㻑䛻㐩䛩䜛䛣䛸䛜䜟䛛䛳䛯䚹㻯㼍㻯㻻㻟 ⾲㠃䛷㎿㏿䛻䚸䛛䛴㑅ᢥⓗ䛻䝅䝸䜹䝁䞊䝔䜱䞁䜾䜢⏕ᡂ䛥䛫䜛䛯䜑䛻䛿䚸㻯㼍㻯㻻㻟 ⾲㠃䛸┦஫స⏝䜢ᣢ䛴 㻺㻴㻠㻗䛾Ꮡᅾ䛸䚸䝌䝹䝀䝹཯ᛂ䜢ಁ㐍䛥䛫䜛 㻲㻙䛾Ꮡᅾ䛜ᚲせ䛷䛒䜛䛣䛸䛜䜟䛛䛳䛯䚹㻌㻌㻡㻚 ཧ⪃ᩥ⊩㻌 㻌㼇㻝㼉㻌㻲㼡㼖㼕㻘㻌㻭㼐㼢㻚㻌㻼㼛㼣㼐㼑㼞㻌㼀㼑㼏㼔㼚㼛㼘㻚㻘㻌㻝㻤㻘㻌㻤㻝㻘㻌㻞㻜㻜㻣㻌㼇㻞㼉㻌㻲㼡㼖㼕㻘㻌㻯㼛㼘㼘㼛㼕㼐㻌㻿㼡㼞㼒㻚㻌㻭㻘㻌㻠㻜㻠㻘㻌㻝㻜㻝㻘㻌㻞㻜㻝㻞㻌㼇㻟㼉㻌㻲㼡㼖㼕㻘㻌㻺㼍㼚㼛㼠㼑㼏㼔㼚㼛㼘㻚㻘㻌㻞㻟㻘㻌㻠㻤㻡㻢㻜㻤㻘㻌㻞㻜㻝㻞㻘㻌 㻌㼇㻠㼉㻌㻼㼛㼜㼑㻘㻌㻶㻚㻌㻺㼛㼚㻙㻯㼞㼥㼟㼠㻚㻌㻿㼛㼘㼕㼐㼟㻘㻌㻤㻣㻘㻌㻝㻤㻡㻘㻌㻝㻥㻤㻢㻌㼇㻡㼉㻌㻺㼑㼍㼓㼘㼑㻘㻌㻲㼍㼞㼍㼐㼍㼥㻌㼀㼞㼍㼚㼟㻘㻌㻤㻢㻌㻝㻤㻝㻘㻌㻝㻥㻥㻜㻌䠄ඹྠ◊✲ศ㔝䠖䝇䝬䞊䝖䝁䞊䝔䜱䞁䜾䝥䝻䝉䝇Ꮫศ㔝䠅㻌㻌− 207 −

ࣜࣥ㓟ඵ࢝ࣝࢩ࣒࢘⏕యάᛶ㦵๓㥑యࡢከᏍ㉁໬࡟㛵ࡍࡿ◊✲ᐩᒣ኱Ꮫ኱Ꮫ㝔 ࢼࣀ᪂ᶵ⬟ᮦᩱᏛᇦ᳃  ⱥ ฼1. ⥴ ゝ⏕య྾཰ᛶᇙධ㦵ᮦࡢ᮲௳࡜ࡋ࡚ࡣࠊ㦵ࣔࢹࣜࣥࢢࡢᡂᙧ⣲ᮦ࡛࠶ࡿ࡜ྠ᫬࡟ࠊయෆᇙධᚋ࡟ࡣ㦵ࣜࣔࢹࣜࣥࢢࣉࣟࢭࢫ࡟⤌㎸ࡲࢀ࡚ᡂ⇍㦵࡟෌⏕ࡉࢀࡿࡇ࡜ࡀᮃࡲࢀࡿࠋࣜࣥ㓟ඵ࢝ࣝࢩ࣒࢘(OCP)ࡣ㦵୺ᡂศࡢỈ㓟࢔ࣃࢱ࢖ࢺ(HAp)ࡢ๓㥑య࡛࠶ࡾࠊ⏕⌮⎔ቃୗ࡛ࡣຍỈศゎ࡟ࡼࡾ HAp ࡬࡜⤖ᬗᵓ㐀㌿᥮ࡍࡿ≀⌮໬Ꮫⓗ≉ᚩࢆࡶࡗ࡚࠸ࡿࠋࡑࡇ࡛ OCP ࢆ㦵๓㥑య࡜ࡋ࡚㦵Ḟᦆ㒊࡟ᇙධࡍࢀࡤࠊ㦵ࣜࣔࢹࣜࣥࢢ㐣⛬ࢆ⤒࡚⏕య㦵㢮ఝ࢔ࣃࢱ࢖ࢺ࡟෌⏕ࡉࢀࡿࡇ࡜ࡀᮇᚅ࡛ࡁࡿࠋࡋ࠿ࡋ OCP ࡣ⤖ᬗෆ࡟Ỉ࿴ᒙࢆ᭷ࡍࡿࡓࡵࠊᇶᮏⓗ࡟ࡣ↝ᡂ࡟ࡼࡗ࡚ᡂᙧࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠸ࠋᮏ◊✲ࡣࠊ↝ᡂ㐣⛬ࢆ⏝࠸࡞࠸ከᏍ㉁ OCP ࡢస〇ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ
᫖ᖺᗘࡢ◊✲࡛ࡣࠊࣜࣥ㓟஧Ỉ⣲࢝ࣝࢩ୍࣒࢘Ỉ࿴≀(MCPM)࡜Ⅳ㓟࢝ࣝࢩ࣒࢘(CC)ࡢΰྜ⢊ᮎࢆࣜࣥ㓟Ỉ⣲ࢼࢺ࣒ࣜ࢘⣔⦆⾪ᾮ(Na2HPO4-NaH2PO4)࡛⦎࿴ࡋ࡚ࠊ୰㛫⏕ᡂ≀ࡢࣜࣥ㓟Ỉ⣲࢝ࣝࢩ࣒࢘஧Ỉ࿴≀ DCPD
ከᏍయࢆ⏕ᡂࡋࠊDCPD ࢆຍỈศゎࡋ࡚ OCP ከᏍయࢆㄪ〇ࡍࡿᡭἲ࡟ࡘ࠸࡚ሗ࿌ࡋࡓࠋOCP ࡢ⏕ᡂ㡿ᇦࡣࠊ
DCPD ࡜ HAp ⏕ᡂ㡿ᇦࡢ⊃࠸⠊ᅖ࡟࠶ࡾࠊࡇࢀࡀ⁐ᾮࡢ pH ࡸ ᗘࠊ⃰ᗘ࡞࡝࡟ᙉࡃ౫Ꮡࡍࡿࡇ࡜ࡀ㔜せㄢ㢟࡜ࡋ࡚ṧࡉࢀ࡚࠸ࡿࠋᮏሗ࡛ࡣࠊ⦆⾪ᾮ pH ࡀ OCP ྜᡂ࡟ཬࡰࡍᙳ㡪ࢆ୰ᚰ࡟᳨ウࡋࡓ⤖ᯝࢆሗ࿌ࡍࡿࠋ
2. ᐇ㦂࠾ࡼࡧᐇ㦂᪉ἲ
 OCP ከᏍయࡢㄪ〇࠾ࡼࡧホ౯᪉ἲࡢᴫせࢆ Fig.1 ࡟♧ࡍࠋ࣮࣑࣎ࣝࣝ࡟ࡼࡗ࡚ 24 ᫬㛫ゎ○ࡋࡓ MCPM
0.125 mol ࡜ CC 0.025 mol ࡢ⢊ᮎࢆ࣓ࣀ࢘ங㖊࡛ΰྜࡋࡓᚋ࡟ࢩ࣮ࣕࣞୖ࡬᥇ྲྀࡋࠊ⢊ᾮẚ 1.3 [ml/g]࡛
Na2HPO4-NaH2PO4 ⦆⾪ᾮ(pH=6.5ࠊ7.4ࠊ8.0)ࢆ⁲ୗࡋ࡚⦎࿴ࡋࡓࠋẼἻ㸦஧㓟໬Ⅳ⣲㸧ࡢⓎ⏕ࡀ⦆ࡸ࠿࡟࡞ࡿ
ࡲ࡛⦎࿴ࡋࠊ⦎࿴Ἶࢆࢳ࣮ࣗࣈ࡟‶ࡓࡋ࡚ຍᅽᅛᐃࡋࠊࡑࡢࡲࡲᜏ ᵴ㸦36.5Υ㸧࡟ᾐₕࡋࡓࠋ⦎࿴㛤ጞ 2᫬㛫ᚋ࡟ࢳ࣮ࣗࣈ࠿ࡽྲྀࡾฟࡋࠊ36.5Υࡢ⵨␃Ỉ୰࡟ 7 ᪥㛫ᾐₕࡋ࡚ OCP ࡢྜᡂࢆ⾜࠸ࠊࡑࡢᚋ 36.5Υࡢᨃఝయᾮ SBF ୰࡟ᾐₕࡋࠊHAp ㌿໬⬟ࢆホ౯ࡋࡓࠋSBF ࡟ࡣ᭱㛗 6 㐌㛫ᾐₕࡉࡏࠊ1 㐌㛫ẖࡢヨᩱࢆࡑࢀࡒࢀXRD ࡟ࡼࡿ⤖ᬗ┦ࡢྠᐃ࡜ SEM ࡟ࡼࡿᙧែほᐹ࡟౪ࡋࡓࠋ඲య࡜ࡋ࡚ࡢ཯ᛂᘧࡣ௨ୗࡢ࡜࠾ࡾ࡛࠶ࡿࠋ
3Ca(H 2 PO 4 ) 2  H 2 O+5CaCO 3 o Ca 8 H 2 (PO 4 ) 6  5H 2 O+3H 2 O+5CO 2 n(1)
3. ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ
㻌 Fig.2 ࡟ OCP ከᏍయࡢྜᡂ཯ᛂࢆ♧ࡍࠋࡇࢀࡲ࡛ࡢ⤖ᯝࡼࡾࠊpH=7.4 ࡢࣜࣥ㓟⦆⾪ᾮࢆ౑⏝ࡋࡓሙྜ࡟ࡣࠊ
MCPM ⁐ゎ࡟క࠺ᛴ⃭࡞ pH పୗࢆᢚ࠼ࠊᙅ㓟ᛶ᮲௳ୗ࡛୰㛫⏕ᡂ≀ࡢ DCPD ከᏍయࢆ㏿ࡸ࠿࡟ྜᡂࡍࡿࡇ
࡜ࡀྍ⬟࡛࠶ࡿࠋ୍᪉ࠊ཯ᛂᘧ(2)㹼(6)࡟ᇶ࡙ࡅࡤࠊMCPM ࡜ CC ࡢ཯ᛂࡣ⦆⾪ᾮ pH ࡟౫Ꮡࡍࡿࡇ࡜ࡀண
ࡉࢀࠊ౛࠼ࡤ pH ࡀሷᇶᛶ㡿ᇦ࡛ࡣࠊ࢔ࣝ࢝ࣜᛶሷࡢ CC ࡢ⁐ゎ཯ᛂ(5)(6)ࡣ㐜ᘏࡍࡿࡇ࡜ࡀ⪃࠼ࡽࢀࠊࡇࡢ
ࡇ࡜ࡣ CO2 ࢞ࢫࡢⓎ⏕㏿ᗘ࡟ࡶᙳ㡪ࡋࠊ⤖ᯝ࡜ࡋ࡚ DCPD ከᏍయࡢẼᏍࢧ࢖ࢬࡸẼᏍ⋡࡟ࡶᙳ㡪ࢆཬࡰࡍࡇ࡜ࡀண ࡉࢀࡿࠋFig.3 ࡟ࡣ pH= 8.0-ࣜࣥ㓟⦆⾪ᾮࢆ⏝࠸࡚ྜᡂࡋࡓ DCPD ከᏍయࢆ౑⏝ࡋࠊ1㹼7 ᪥㛫ຍỈศゎࡉࡏ࡚ྜᡂࡋࡓ OCP ࡢ SEM ᧜ീࢆ♧ࡍࠋ᫬㛫ࡢ⤒㐣࡜࡜ࡶ࡟ OCP ࡟≉ᚩⓗ࡞ⷧล≧⤖ᬗࡀᡂ㛗ࡋ࡚࠾ࡾࠊ

Fig.1 ᐇ㦂᪉ἲࡢᴫせ             Fig.2− 208 −

OCP ከᏍయࡢྜᡂ཯ᛂ

Fig.3 DCPD ࡢຍỈศゎ࡟ࡼࡿ OCP ྜᡂ㐣⛬ࡢ SEM ᧜ീ (pH = 8.0)

Fig.4 DCPD ࢆ 7 ᪥㛫ຍỈศゎࡋ࡚ྜᡂࡋࡓ OCP ྜᡂࡢ SEM ᧜ീ
pH=7.4 ࡢࣜࣥ㓟⦆⾪ᾮࢆ౑⏝ࡋࡓሙྜ࡜ྠᵝ࡞ഴྥࡀ☜ㄆ࡛ࡁࡿࠋ
ᅗ࠿ࡽ┤᥋ⓗ࡟ pH=7.4 ࡢሙྜ࡜ẼᏍࡢᵝᏊࢆẚ㍑ࡍࡿࡇ࡜ࡣᅔ㞴࡛࠶ࡿࡀࠊᐇ㝿ࢩࣜࣥࢲ࣮࡟ྠ㔞ࡢ⦎࿴Ἶࢆ඘ሸࡋ࡚ࡶࠊᚓࡽࢀࡓ
DCPD ከᏍయࡣ pH=7.4 ࡢሙྜ࡟ẚࡋ࡚࠿ࡉయ✚ࡀ⣙ 1.3 ಸ࡜࡞ࡾࠊ
ẼᏍ⋡࡟ࡶ኱ࡁࡃᙳ㡪ࡋ࡚࠸ࡿࡇ࡜ࡀண᝿ࡉࢀࡿࠋࡲࡓ Fig.4 ࡟ࡣྛ
pH ࡛ྜᡂࡋࡓ OCP ࡢ SEM ᧜ീࢆ♧ࡍࠋ࠸ࡎࢀࡢ pH ࡟࠾࠸࡚ࡶ OCP⤖ᬗࡢᡂ㛗ࡀ☜ㄆ࡛ࡁࠊ᫂☜࡞ᕪ␗ࢆぢฟࡍࡇ࡜ࡣ㞴ࡋ࠸ࡀࠊpH=6.5
ࡢሙྜࡀ᭱ࡶ OCP ࡢ⤖ᬗᛶࡀⰋዲ࡛࠶ࡿࡇ࡜ࡀ᥎ ࡛ࡁࡿࠋFig.5
࡟ࡣ pH = 8.0 ࡢ DCPD ከᏍయࢆຍỈศゎࡉࡏࡓヨᩱࡢᅇᢡࣃ
ࢱ࣮ࣥࡢ⤒᫬ኚ໬ࢆ♧ࡋࡓࠋ᫬㛫࡜࡜ࡶ࡟ DCPD ࡢຍỈศゎࡀ㐍⾜ࡋࠊpH = 8.0 ࡢሙྜ࡟ࡶ
7 ᪥㛫ࡢຍỈศゎ࡛࡯ࡰ OCP
ከᏍయ࡟㌿໬ࡋ࡚࠸ࡿࠋࡋ࠿ࡋ
pH = 7.4 ࡛᭱ࡶ≉ᚩⓗ࡞ኚ໬ࢆFig.5 OCP ྜᡂ㐣⛬ࡢ XRD ኚ໬ ♧ࡋࡓ DCPD(020)㠃(11.6 r)ࠊ(1㸫㸫21)㠃(20.8 r)࠾ࡼࡧ(141)㠃(29.1 r)ࡢᅇᢡᙉᗘࡢῶᑡࡀ㐜ࡃ࡞ࡗ࡚࠸ࡿ
ࡇ࡜ࡀ☜ㄆ࡛ࡁࠊpH ࡀ OCP ࡬ࡢ㌿໬㏿ᗘ࡟ᙳ㡪ࢆ୚࠼ࡿࡇ࡜ࡀண ࡉࢀࡿࠋᅗࡣྛ pH ࡢ⦆⾪ᾮ࡛⦎࿴࣭స〇ࡋࡓ DCPD ࢆ 7 ᪥㛫ຍỈศゎࡋʊࡓヨᩱࡢᅇᢡࣃࢱ࣮࡛ࣥࠊ≉ᚩⓗ࡞ OCP ࡢ(010)㠃࠶ࡿ࠸ࡣ(24 1)㠃ࡢᅇᢡࣆ࣮ࢡࡣ pH=6.5 ࡢሙྜࡀ᭱ࡶᙉࡃࠊࡲࡓฟⓎཎᩱ࡜࡞ࡿ DCPD ࡶ௚ࡢ pH ࡢሙྜࡼࡾࡶഹ࠿࡛ࡣ࠶ࡿࡀṧᏑࡋ࡚࠾ࡾࠊࡉࡽ࡟ᡂ㛗ࡍࡿࡇ࡜ࡀண᝿ࡉࢀࡿࠋ୍᪉ HAp(300)㠃ࡢࣆ࣮ࢡࡶ☜ㄆ࡛ࡁࠊ࡜ࡃ࡟ pH=8.0 ࡢሙྜࡀ௚࡟ẚࡋ࡚ࡸࡸᙉࡃฟ࡚࠾ࡾࠊ཯ᛂᘧ(10)࡟ࡼࡾ OCP Ѝ HAp
࡬ࡢ㌿໬ࡶ㐍ࢇ࡛࠸ࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿࠋ
Fig.6 OCP ྜᡂ࡟ཬࡰࡍ pH ࡢᙳ㡪㻌㻌㻌㻌     (ඹྠ◊✲ศ㔝: ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫศ㔝)− 209 −

ᡂᙧయࡢ୙ᆒ㉁ᵓ㐀ᙧᡂ࡟㛵ࡍࡿ◊✲ᮾிᕤᴗ኱Ꮫ ≀㉁⌮ᕤᏛ㝔 ᮦᩱ⣔

Ᏻ⏣ බ୍         
1. ⥴   ゝ㢛⢏ࢆ⏝࠸ࡓ⢊యࣉࣟࢭࢫ(1,2)ࡣ㸪ࡑࡢ⏕⏘ᛶࡢ㧗ࡉ࠿ࡽ㸪⸆ရ㸪㣗ရ㸪㔠ᒓ㸪ࢭ࣑ࣛࢵࢡࢫ࡞࡝ࡢᵝࠎ࡞ศ㔝࡛⏝࠸ࡽࢀ࡚࠸ࡿ㸬≉࡟㸪㧗ᛶ⬟ࢭ࣑ࣛࢵࢡࢫ࡛ࡢ〇㐀࡛ࡣ㸪㢛⢏ࢆ㔠ᆺᡂᙧࡋࡓᚋ㸪ࡉࡽ࡟㸪෭㛫㟼Ỉᅽᡂᙧ㸦CIP㸧ࢆే⏝ࡋ࡚ᡂᙧయࡢᆒ㉁ᛶࢆ㧗ࡵ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ᐇ㝿ࡢ CIP ᡂᙧ࡛ࡣ㸪ᐦᗘศᕸࡀᮍࡔᡂᙧయ୰࡟ṧᏑࡋ࡚࠸ࡿ࡜ࡢሗ࿌(3)ࡶ࠶
ࡿ㸬ࡑࡇ࡛㸪ⴭ⪅ࡽ(4)ࡶ㸪༢ศᩓࢩࣜ࢝⢏Ꮚ࠿ࡽ࡞ࡿ㢛⢏ࡢ CIP ᡂᙧࢆ⧞ࡾ㏉ࡋ㸪ࡑࡢ㝿ࡢ㢛⢏ࡢᔂቯࡢ๭ྜࡀ㸪ᡂᙧయࡢ⾲㠃࡜ෆ㒊࡛␗࡞ࡿࡇ࡜ࢆሗ࿌ࡋ࡚࠸ࡿ㸬ࡲࡓ㸪ࡑࡢཎᅉ࡜ࡋ࡚㸪CIP ᡂᙧయෆࡢᛂຊศᕸࢆ㸪ྠᚰከ㔜⌫Ẇࣔࢹࣝ(5)ࢆ⏝࠸࡚ᴫ⟬ࡋ㸪ᐦᗘࡢ㐪࠸࡟ࡼࡿᛂຊఏ㐩ࡢ㐪࠸ࢆᣦ᦬ࡋ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ᚑ᮶ࡢࣔࢹࣝࡣ㞳ᩓࣔࢹࣝ࡟ࡼࡿỴᐃㄽ࡛࠶ࡗࡓࡓࡵ㸪㢛⢏ࡢᔂቯᙉᗘࡀ㸪ᐇ㝿࡟ࡣ㸪㢛⢏ᚄ㸪ᙧ≧୙つ๎ᛶ࡞࡝せᅉ࡟ࡼࡾ㸪࠶ࡿࡤࡽࡘࡁࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࢆ㸪༑ศ⪃៖ࡍࡿࡇ࡜ࡀ࡛ࡁ࡚࠸࡞࠿ࡗࡓ㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ㸪᫖ᖺᗘ㸪ᵓ⠏ࡋࡓᡂᙧయ୰ࡢ㢛⢏ᔂቯࡢ☜⋡ㄽ(6,7,8)ࡢᩘ್
ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓ㸬
2. ᡂᙧయ୰ࡢᛂຊศᕸ
ⴭ⪅ࡽࡀ௨๓ሗ࿌ࡋࡓ༢ศᩓࢩࣜ࢝⌫࠿ࡽసࡗࡓ㢛⢏ࡢ CIP ᡂᙧయࡢ⤖ᯝ(4,5)࡟ᇶ࡙࠸࡚⾜ࡗࡓᩘ್ィ⟬౛ࢆ♧ࡍ㸬ࡇࡇ࡛ࡣ㸪ᅗ 1 ࡟♧ࡋࡓࡼ࠺࡞ࣖࣥࢢ⋡ࡢኚ໬ࡀ㸪༙ᚄ 40mm ࡢ⌫≧ணഛᡂᙧయ࡟Ꮡᅾࡍࡿሙྜࢆ⪃࠼ࡿ㸬ࡇࡢᡂᙧయ࡟ CIP
ᅽຊ - 100MPa ࢆ‽㟼ⓗ࡟㈇Ⲵࡋࡓሙྜࡣ㸪㈇Ⲵࡢ㐣⛬࡛ࣖࣥࢢ⋡ࡀᚎࠎ࡟ᆒ୍໬ࡍࡿࡢ࡛㸪-100MPa ࡢ㈇Ⲵࡢẁ㝵࡛㸪ᡂᙧయෆࡢ༙ᚄ᪉ྥᛂຊࡶ-100MPa ୍࡛ᐃ࡜࡞ࡗࡓ㸦ᅗ୰ࡢⅬ⥺㸧㸬ࡋ࠿ࡋ㸪ືⓗ࡟㈇Ⲵࡋࡓሙྜࡣᅗ 2 ࡢᐇ⥺࡛♧ࡍࡼ࠺࡟㸪ᡂᙧయࡢእ⾲㠃࡛ࡣ - 100MPa ࡜࡞ࡗ࡚࠸ࡿࡀ㸪ᡂᙧయࡢ୰ᚰ࡟㏆࡙ࡃ࡟ࡘࢀ࡚ᛂຊࡀῶᑡࡋ࡚⣙-80MPa ࡜࠸࠺ィ⟬⤖ᯝ࡜࡞ࡗࡓ㸬ᅗ 3 ࡣᔂቯ CIP ᅽຊࡢ࣡࢖ࣈࣝࣉࣟࢵࢺ࡛࠶ࡿ㸬๓㏙ࡋࡓࡼ࠺࡟㸪CIP ᅽຊ࡟ࡼࡗ࡚㸪ᡂᙧయෆࡢᛂຊ
ศᕸࡀ␗࡞ࡿࡓࡵ㸪࣡࢖ࣈࣝࣉࣟࢵࢺࡣ⥺ᆺ࡟ࡣ࡞ࡽ࡞࠸㸬ᅗ 4 ࡟ࡣ㸪ᔂቯ఩⨨ r ࡟㛵ࡍࡿ࿘㎶ศᕸ H(r)ࡢ୍౛ࢆ♧ࡋࡓ㸬య✚✚ศࡢຠᯝࡀ኱ࡁ࠸ࡓࡵ㸪ᡂᙧయෆࡢᛂຊศᕸࡀኚ໬ࡋ࡚ࡶ㸪࠶ࡲࡾ H(r)ࡢᙧ≧࡟ࡣኚ໬ࡀㄆࡵࡽࢀ࡞࠸㸬ࡲࡓ㸪CIP
ᅽຊ✵㛫ࢆ 0 ࠿ࡽ҄ࡢ㡿ᇦ࡛✚ศࡋ࡚࠸ࡿࡢ࡛㸪㛵ᩘ್ࡢゎ㔘ࡶ㞴ࡋ࠸㸬

Fig.1 The change inYoung’s modulus of aspherical powder compact
after preforming.

Fig.2 The radial stress
distribution of the compact
during CIP (P = - 100MPa in
dynamic loading). The dottedline is the stress distribution inquasi-static loading.

− 210 −

Fig.3 Weibull plot of CIP
pressure for granulecollapse (m = 2, P0 =50MPa).

ࡑࡇ࡛㸪CIP ᅽຊ P ࡢ✚ศ⠊ᅖࢆ 0 ࠿ࡽ P ࡜ࡋ, ༙ᚄ᪉ྥ࡟㸯ḟඖⓗ࡟✚ศࡋࡓ K(|P’|, r)㛵ᩘࢆ᪂࡟ᐃ⩏ࡋ㸪ࡑࡢ୍
౛ࢆ Fig.5 ࡟♧ࡍ㸬ࡇࢀࡣ⣼✚☜⋡ศᕸ࡟࡞ࡗ࡚࠾ࡾ㸪௬࡟㸪㢛⢏ࡢᔂቯ☜⋡ࡀ༙ᚄ᪉ྥ r ୍࡛ᐃ࡛࠶ࡿ࡜㸪K(|P’|, r)㛵ᩘࡣ┤⥺࡜࡞ࡿ㸬Fig.5 ࡣ-100MPa ࢆືⓗ࡟㈇Ⲵࡋࡓሙྜࡢィ⟬⤖ᯝ࡞ࡢ࡛㸪ࣉࣟࢵࢺࡀ㸪ⱝᖸ㸪ୗ࡟ฝࡢᙧ≧ࢆ♧ࡋ࡚࠸ࡿ㸬ࡉࡽ࡟㸪K(|P’|, r)㛵ᩘࢆ r ࡛ᚤศࡋࡓࡶࡢࡀ k(|P’|, r)㛵ᩘ࡛࠶ࡾ㸪ࡇࢀࡣ㸪ᗙᶆ r ࡟࠾ࡅࡿ㢛⢏ࡢᔂቯ☜⋡ࢆ⾲ࡋ࡚࠸ࡿ Fig.6
࡟ࡣ㸪Fig.5 ࡟ᑐᛂࡋࡓ k(|P’|, r)㛵ᩘࢆ♧ࡋࡓ㸬ࡇࢀࡼࡾ㸪ᡂᙧయࡢ⾲㠃ࡢ᪉ࡀෆ㒊࡟ẚ࡭࡚㸪㢛⢏ࡢᔂቯ☜⋡ࡀ㧗ࡃ㸪ࡇࢀࡣ㸪CIP ᡂᙧ୰ࡢᛂຊศᕸ࡟㉳ᅉࡍࡿ㸬࡞࠾㸪㈇Ⲵࢆ‽㟼ⓗ࡟⾜ࡗࡓሙྜࢆィ⟬ࡍࡿ࡜㸪ึᮇࡢࣖࣥࢢ⋡ࡢศᕸࡀ㸪ప
࠸ CIP ᅽຊࡢẁ㝵࡛ᾘ⁛ࡋ࡚㸪ᛂຊศᕸࡀᆒ୍࡟࡞ࡿࡓࡵ㸪ࡇࡢሙྜࡢ k(|P’|, r)㛵ᩘࡣ୍ᐃࡢ್ࢆ♧ࡍࡇ࡜ࡀࢃ࠿ࡗ࡚࠸
ࡿ㸬ᐇ㝿ࡢ CIP ᡂᙧࡣ㸪‽㟼ⓗ㈇Ⲵ࡜ືⓗ㈇Ⲵࡢ୰㛫ࡢẁ㝵࡛࠶ࡿ࡜ண ࡉࢀࡿ㸬

Fig.4
The
marginal
distribution of H(r) for
collapse location of granules
in the compact under-100MPa during CIP in
dynamic loading (m = 4, P0= 50MPa).

Fig.5
The
cumulative
collapse probability K(|P|,r)of granules in the compact
under -100MPa during CIP in
dynamic loading (m = 2, P0= 50MPa).

Fig.6 The point collapse
probability k(|P|,r) of granules
in the compact under-100MPa during CIP in
dynamic loading (m = 2, P0= 50MPa).

ᩥ   ⊩(1) ᪥ᮏᏛ⾡᣺⯆఍㧗 ࢭ࣑ࣛࢵࢡᮦ➨ 124 ጤဨ఍㸪”ඛ㐍ࢭ࣑ࣛࢵࢡࢫࡢసࡾ᪉࡜౑࠸᪉”㸪᪥หᕤᴗ᪂⪺♫㸦2005㸧.
(2) M.Okumiya, H.Abe, M.Naito, “Control of Non-uniform Structure of Sintered Ceramics for its Reliability Improvements”,
J.Soc.Powder.Technol., Japan, 47, (2010) pp26-34.
(3) Satoshi Tanaka, and Keizo Uematsu, “Evaluation of Internal Coarse Defects in Alumina Powder Compact and Ceramics”,
Transaction on GIGAGU, 1, (1) (2012) 01020.
(4) Kouichi Yasuda, T.Kitamura, Y.Matsuo and T.Shiota, “Densification Process of Powder Compaction by Cyclic CIP”, MS&T
2006 : Processing, (2006) Cincinnati, OH, USA pp495-506.
(5) Ᏻ⏣බ୍㸪⏣୰ ㅍ㸪ෆ⸨∾⏨㸪”⧞ࡾ㏉ࡋ㟼Ỉᅽຍᅽ࡟࠾ࡅࡿࢭ࣑ࣛࢵࢡࢫᡂᙧయෆࡢᆒ㉁໬㐣⛬࡟㛵ࡍࡿከ㔜⌫Ẇࣔࢹࣝ࡟ࡼࡿᙎᛶゎᯒ”, ⢊యᕤᏛ఍ㄅ㸪vol.51, No.31 (2014) pp.153-162.
(6) K.Yasuda, S.Tanaka, M.Naito, “Stochasitc Model on Granule Collapse during Cold Isostatic Pressing” The 31th International
Korea-Japan Seminar on Ceramics, Changwon, Korea, Nov.26-29 (2014) pp111, ST-I02.
(7)Ᏻ⏣බ୍㸪⏣୰ ㅍ㸪ෆ⸨∾⏨㸪”CIP ᡂᙧ୰ࡢ㢛⢏ࡢᔂቯ㐣⛬ࡢࣔࢹࣜࣥࢢ”㸪᪥ᮏᶵᲔᏛ఍➨ 23 ᅇᶵᲔᮦᩱ࣭ᮦᩱຍ
ᕤᢏ⾡ㅮ₇఍㸦M&P2015㸧, Nov.14-15, ᗈᓥ኱㸪No. 229, (2015 )pp1-5.
(8) K.Yasuda, S.Tanaka, M.Naito, “Stochastic analysis on ceramic granule collapse in powder compact during cold isostatic pressing”,
Advanced Powder Technology, 27, (2016) 940-947.
㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 211 −

Ỉ⇕࣍ࢵࢺࣉࣞࢫࢆ⏝࠸ࡓ⢏Ꮚ㛫᥋ྜ࡟㛵ࡍࡿ◊✲㧗▱኱Ꮫ⌮Ꮫ㒊㝃ᒓỈ⇕໬Ꮫᐇ㦂ᡤᰗ⃝ ࿴㐨
1. ┠ⓗỈ⇕཯ᛂࡣ㸪100 °C ௨ୖ㸪1 Ẽᅽ௨ୖࡢ㧗㧗ᅽୗࡢỈࡀ㛵୚ࡍࡿ໬Ꮫ཯ᛂ࡜ࡋ࡚ᐃ⩏ࡉࢀ㸪⮬↛⏺࡛ࡣከࡃࡢ㖔≀ࡀࡇࡢỈ⇕཯ᛂࢆ௓ࡋ࡚⏕ᡂࡉࢀࡿࠋࡇࡢࡼ࠺࡞㧗㧗ᅽୗࡢỈࡢస⏝ࢆ฼⏝ࡋ࡚㸪↓ᶵ໬ྜ≀ࢆᅽᦢᅛ໬ࡉࡏࡿ⌧㇟ࢆᐇ㦂ᐊⓗ࡟෌⌧ࡋࡼ࠺࡜⪃᱌ࡉࢀࡓࡢࡀ㸪Ỉ⇕࣍ࢵࢺࣉࣞࢫἲ࡛࠶ࡿࠋᮏᡭἲ࡛ࡣ㸪
Fig. 1 ࡛♧ࡉࢀࡿࡼ࠺࡞࣮࢜ࢺࢡ࣮ࣞࣈࢆ⏝࠸㸪Ỉ⇕᮲௳ୗ࡟࠶ࡿ↓ᶵ໬ྜ≀⢊యࢆ࣮࢜ࢺࢡ࣮ࣞࣈࡢእ㒊࠿ࡽෆ㒊ࡢỈ⵨Ẽᅽࡼࡾࡶ㧗࠸ᅽຊ࡛ຍᅽࡋ࡞ࡀࡽỈ⇕ฎ⌮ࢆ࠾ࡇ࡞࠺ࠋእ㒊࠿ࡽࡢຍᅽࡣ⢊యヨᩱࡢ⦓ᐦ໬ࢆಁ㐍ࡋ㸪Ỉ⇕ฎ⌮ࡣ⢏Ꮚ㛫ࡢ᥋ྜࢆಁࡍࠋࡇࡢỈ⇕࣍ࢵࢺࣉࣞࢫἲࢆ฼⏝ࡍࡿࡇ࡜࡟ࡼࡾ㸪ࡉࡲࡊࡲ࡞⢊యࢆ 300 °C ⛬ᗘࡢప ࡛ᅛ໬ࡉࡏࡿࡇ࡜ࡀ࡛ࡁࡿ[1]ࠋ
ᅛ໬ᡂᙧཎᩱ⢊࡜ࡋ࡚ࢼࣀ⢏Ꮚ࠿ࡽ࡞ࡿ㢛⢏యࢆ⏝࠸ࡓሙྜ㸪Ỉ⇕࣍ࢵࢺࣉࣞࢫ࡟ࡼࡿ㢛⢏యෆ࡛ࡢࢼࣀ⢏Ꮚ㛫ࡢ᥋ྜ㸪࡞ࡽࡧ࡟㢛⢏య㛫࡛ࡢ᥋ྜࡀ⏕ࡌࡿࡇ࡜࡛㸪஧ᓠᛶࡢẼᏍᚄศᕸࢆ᭷ࡍࡿከᏍ㉁ᅛ໬యࡢస〇ࡀᮇᚅ࡛ࡁࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ࢼࣀ⢏Ꮚ࠿ࡽ࡞ࡿ㢛⢏యࢆỈ⇕࣍ࢵࢺࣉࣞࢫἲ࡟ࡼࡾᅛ໬ࡋ㸪ࡑࡢ⢏Ꮚ㛫࡛ࡢ᥋ྜࢆほᐹࡍࡿ࡜࡜ࡶ࡟㸪᪂ࡓ࡞ከᏍయ〇㐀ࣉࣟࢭࢫࡢᵓ⠏ࢆ┠ᣦࡍࠋ

Fig. 1 Ỉ⇕࣍ࢵࢺࣉࣞࢫ⏝཯ᛂᐜჾ

2. ◊✲᪉ἲ
Ỉ⇕࣍ࢵࢺࣉࣞࢫἲ࡛⏝࠸ࡿࣔࢹࣝ⢏Ꮚ࡜ࡋ࡚㸪⌫≧ࡢ MnCO3 ⢏Ꮚࢆᾮ┦ἲ࡟ࡼࡾྜᡂࡋࡓ[2]ࠋࡲࡎ㸪(NH4)2CO3㸦50 g㸧࠾ࡼࡧ 28% NH3 Ỉ㸦60 mL㸧ࢆ⵨␃Ỉ࡟⁐ゎࡉࡏ㸪500 mL ࡢỈ⁐ᾮࢆㄪ〇ࡋࡓࠋࡇࡢỈ⁐ᾮࢆ 0.5 M MnSO4 Ỉ⁐ᾮ㸦500 mL㸧࡟ 15 mL/min ࡢὶ㏿࡛⁲ୗࡉࡏ㸪ᐊ ࡛ 1 h ᧠ᢾࡍࡿࡇ࡜࡛⌫≧ࡢ MnCO3⢏Ꮚࢆᚓࡓࠋྜᡂࡋࡓ MnCO3 ⢊య㸦3 g㸧࡟⵨␃Ỉ㸦0.3 mL㸧ࢆῧຍࡋ㸪ங㖊ࢆ⏝࠸࡚ΰྜࡋࡓࠋࡇࡢ‵₶MnCO3 ⢊యࢆ Fig. 1 ࡛♧ࡋࡓ෇⟄ᙧᐜჾ࡟ධࢀ㸪100–200 °C㸪15 MPa㸪2 h ࡢỈ⇕࣍ࢵࢺࣉࣞࢫࢆ࠾ࡇ࡞࠸㸪ᅛ໬యࢆస〇ࡋࡓࠋཎᩱ⢊యࡢ⢊య≉ᛶࡣ㸪X ⥺ᅇᢡ㸦XRD㸧࡟ࡼࡿ⤖ᬗ┦ࡢྠᐃ㸪N2 ྾╔㔞ᐃ࡟ࡼࡿẚ⾲㠃✚ࡢ⟬ฟ㸪㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾㸦SEM㸧࡟ࡼࡿᙧែほᐹ㸪࣮ࣞࢨ࣮ᅇᢡᩓ஘ἲ࡟ࡼࡿ⢏Ꮚᚄศᕸᐃࢆ࠾ࡇ࡞ࡗࡓࠋࡲࡓ㸪Ỉ⇕࣍ࢵࢺࣉࣞࢫἲ࡛ᚓࡽࢀࡓᅛ໬యࡣ㸪࠿ࡉᐦᗘ ᐃࡢ௚㸪XRD㸪SEM ࡟ࡼࡿศᯒࢆ࠾ࡇ࡞ࡗࡓࠋ
3. ◊✲⤖ᯝᾮ┦ἲ࡛ᚓࡽࢀࡓ MnCO3 ⢊యࡢ⢏Ꮚᚄศᕸࢆ Fig. 2 ࡟♧ࡍࠋ
ࡲࡓ Fig. 3 ࡟ࡣ㸪ཎᩱ࡜ࡋ࡚ࡢ MnCO3 ⢊య࠾ࡼࡧỈ⇕࣍ࢵࢺࣉࣞࢫᚋࡢᅛ໬య⾲㠃ࡢ SEM ෗┿ࢆ♧ࡍࠋᾮ┦ἲ࡟ࡼࡗ࡚ྜ
ᡂࡉࢀࡓ MnCO3 ⢊యࡢẚ⾲㠃✚ࡣ⣙ 70 m2/g ࡛࠶ࡾ㸪ࡑࡢ᥮⟬⢏Ꮚᚄࡣ⣙ 20 nm ࡛࠶ࡗࡓࠋ୍᪉㸪⢏Ꮚᚄศᕸ࠾ࡼࡧ SEM
ほᐹ㸦Fig. 3(a)㸧ࡢ⤖ᯝࡼࡾ㸪஧ḟ⢏Ꮚయࡣᩘ μm ࡢ⌫≧ᙧែ− 212 −

Fig. 2 ཎᩱ MnCO3 ࡢ⢏ᏊᚄศᕸFig. 3 ཎᩱ࠾ࡼࡧྛ ᗘ࡛ࡢỈ⇕࣍ࢵࢺࣉࣞࢫᚋࡢᅛ໬య⾲㠃ࡢ SEM ീ㸸(a) MnCO3㸪(b) 100 °C㸪(c) 150 °C㸪(d) 200 °Cࢆ᭷ࡋ࡚࠸ࡓࠋࡇࡢࡇ࡜࠿ࡽ㸪┠ⓗ࡜ࡍࡿࢼࣀ⢏Ꮚ࠿ࡽ࡞ࡿ㢛⢏యࡀస〇࡛ࡁ࡚࠸ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ⌫≧ MnCO3 ⢊యࢆ 100 °C ࡛Ỉ⇕࣍ࢵࢺࣉࣞࢫࡋࡓ࡜ࡇࢁ㸪⢏Ꮚ⾲㠃࡟⧄⥔≧ࡢ⏕ᡂ≀ࡀぢࡽࢀࡓ㸦Fig.
3(b)㸧ࠋຍ⇕ ᗘࡢୖ᪼࡜࡜ࡶ࡟㸪ࡑࡢ⏕ᡂ㔞ࡣቑຍࡋࡓࠋࡲࡓ㸪150 °C ࡛ࡢỈ⇕࣍ࢵࢺࣉࣞࢫᚋ࡟ࡣ㸪㢛⢏య⾲㠃࡛✵㝽ࡀぢࡽࢀࡓ㸦Fig. 3(c)㸧ࠋ୍᪉㸪200 °C ࡛ࡢฎ⌮ᚋࡢヨᩱࡣ㸪㢛⢏య⾲㠃ࡢ✵㝽ࡣᑡ࡞࠸ࡶࡢࡢ㸪150 °C ᅛ໬ヨᩱ࡜࡯ࡰྠᵝ࡛࠶ࡗࡓ㸦Fig. 3(d)㸧ࠋXRD

ᐃࡢ⤖ᯝ㸪୺┦ࡣ MnCO3 ࡛࠶ࡗࡓࡀ㸪ຍ⇕ ᗘࡢୖ᪼࡜࡜ࡶ࡟ Mn3O4 ࡀࢃࡎ࠿࡟᳨ฟࡉࢀࡓࠋᅛ໬యࡢ࠿ࡉᐦᗘࡣ 1.85 g/cm3 ๓ᚋ࡛࠶ࡾ㸪┦ᑐᐦᗘࡣ⣙ 50%࡛࠶ࡗࡓࠋ⌧ᅾ㸪ᅛ໬యࢆ࢖࣑࢜ࣥࣜࣥࢢ࡟ࡼࡾษࡾฟࡋ㸪ࡑࡢ᩿㠃 SEM ほᐹ࡟ࡼࡗ࡚㢛⢏యෆ㒊࡛ࡢࢼࣀ⢏Ꮚ㛫ࡢ᥋ྜ≧ែࢆㄪᰝࡋ࡚࠸ࡿࠋࡲࡓ㸪Ỉ㖟࣏ࣟࢩ࣓࣮ࢱ࣮ࢆ฼⏝ࡋ࡚㸪ᅛ໬యࡢẼᏍᚄศᕸࡢ

ᐃࢆ࠾ࡇ࡞࠺ண

ᐃ࡛࠶ࡿࠋ
4. ⤖ㄽ
ᮏᖺᗘࡣ㸪౪ヨヨᩱ࡜࡞ࡿ⌫≧ MnCO3 㢛⢏యࡢྜᡂࢆ࠾ࡇ࡞࠺࡜࡜ࡶ࡟㸪Ỉ⇕࣍ࢵࢺࣉࣞࢫἲ࡟ࡼࡾࡑࡢ
ᅛ໬యࢆస〇ࡋࡓࠋᚓࡽࢀࡓᅛ໬య⾲㠃ࡢᚤᵓ㐀ほᐹ࠿ࡽ㸪ࢼࣀ⢏Ꮚ࠿ࡽ࡞ࡿ㢛⢏యࡢ⦓ᐦ໬ᣲືࡢᢕᥱࢆ
࠾ࡇ࡞ࡗࡓࠋཧ⪃ᩥ⊩[1] ᰗ⃝࿴㐨㸪Ỉ⇕࣍ࢵࢺࣉࣞࢫἲ࡟ࡼࡿ↓ᶵᮦᩱࡢྜᡂ㸪J. Soc. Inorg. Mater. Jpn., 11 (2004) 78–84.
[2] T. Kozawa, K. Yanagisawa, T. Murakami, M. Naito, Growth behavior of LiMn2O4 particles formed by solid-state
reactions in air and water vapor, J. Solid State Chem., 243 (2016) 241–246.

㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 213 −

☢ᛶ⢏Ꮚࡢ␗᪉ᡂ㛗࡜≉␗࡞⢓ᙎᛶ≉ᛶᐊ⹒ᕤᴗ኱Ꮫࡃࡽࡋ⎔ቃ⣔㡿ᇦᒣ୰┿ஓᐊ⹒ᕤᴗ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉⎔ቃ๰⏕ᕤᏛ⣔ᑓᨷ ༤ኈ๓ᮇ
Ώ㑓┬࿃
1.

┠ⓗ

 ࢼࣀ⢏Ꮚศᩓ⣔ࡢኚᙧ࡜ὶື≉ᛶ㸪࠸ࢃࡺࡿࣞ࢜ࣟࢪ࣮ࡣከ✀ከᵝ࡛࠶ࡾ㸪ࡑࢀࡣᚤどⓗ࡞✀ࠎࡢ⢏Ꮚ㛫┦஫స⏝࡟ᙳ㡪ࡉࢀࡿࠋ✀ࠎࡢ㧗⃰ᗘศᩓ⣔ࢆㄪ〇࡛ࡁࢀࡤ㸪ࣘࢽ࣮ࢡ࡞ຊᏛ≉ᛶࢆⓎ⌧ࡍࡿ᥋ྜᮦᩱࡀᐇ⌧࡛ࡁࡿ࠿ࡶ
ࡋࢀ࡞࠸ࠋᡃࠎࡣࡇࢀࡲ࡛࡟㸪⪏㓟໬ᛶࢆ㧗ࡵࡓFeࢼࣀ⢏Ꮚࡢྜᡂ࡟ᡂຌࡋ㸪ࡑࡢศᩓ⣔࡟☢ሙୗ࡛኱ࡁ࡞⢓ᙎᛶᣲືࢆぢฟࡋ࡚࠸ࡿࠋࡇ࠺ࡋࡓ୰㸪⊂⮬ࡢᾮ┦ྜᡂᢏ⾡࡟ࡼࡗ࡚ࢼࣀࣇࣝ࢖ࢻࡢㄪ〇࡟ᣮᡓࡋ㸪ࢥࣟ࢖ࢻࡢ⮬ᕫ⤌⧊໬࡟╔┠ࡋࡓከᏍ㉁≀㉁ࡸᙧែไᚚ࡟㛵ࡍࡿ◊✲ࢆ㐍ࡵ࡚࠸ࡿࠋ౛࠼ࡤ㸪ࢼࣀࢧ࢖ࢬࡢⅣ㓟࢝ࣝࢩ࣒࢘ࡀ㧗⃰ᗘ
㸦㹼5 mass%㸧࡟ศᩓࡋࡓ㏱᫂ᾮయࢆ⏝࠸࡚㸪ࡇࢀࡲ࡛࡟⇍ᡂ ᗘࡀࢥࣟ࢖ࢻࡢจ㞟ᙧែ࡟ཬࡰࡍᙳ㡪ࢆ᳨ウࡋ࡚㸪ከᵝ࡞ከᙧ࣭ᙧ≧࣭ᵓ㐀ࡢ࣓ࢯ࣏࣮ࣛࢫయࢆࢸࣥࣉ࣮ࣞࢺࣇ࣮࡛ࣜྜᡂࡋ࡚ࡁࡓ[1㸪2]㸬ᮏ◊✲࡛ࡣ㸪ศᩓᾮࡢ᧠
ᢾ࡟ࡼࡗ࡚㸪2✀㢮ࡢ␗࡞ࡿ⤖ᬗᵓ㐀㸦࢝ࣝࢧ࢖ࢺ㸪ࣂࢸࣛ࢖ࢺ㸧ࡢ࣓ࢯ࣏࣮ࣛࢫⅣ㓟࢝ࣝࢩ࣒࢘ࡀᚓࡽࢀࡿ⯆࿡῝࠸⌧㇟࡟ࡘ࠸࡚㸪ᵓ㐀ᙧᡂ㐣⛬ࢆ㆟ㄽࡍࡿୖ࡛㘽࡜࡞ࡿ࢔ࣔࣝࣇ࢓ࢫࡢ┦㌿⛣ࢆ᳨ウࡋ࡚㸪࣓ࢯ࣏࣮ࣛࢫⅣ㓟࢝ࣝࢩ࣒࢘ࡢᙧែไᚚἲࢆᥦ᱌ࡋࡓ㸬ᚓࡽࢀࡓ▱ぢࡣ㸪௒ᚋ☢ᛶ⢏Ꮚࡢᙧែไᚚ࡟ά⏝࡛ࡁࡿ࡜⪃࠼࡚࠸ࡿࠋ
2.

◊✲᪉ἲ

 ࣓ࢯ࣏࣮ࣛࢫⅣ㓟࢝ࣝࢩ࣒࢘ࡢฟⓎཎᩱ࡜࡞ࡿⅣ㓟࢝ࣝࢩ࣒࢘ࢥࣟ࢖ࢻศᩓᾮࡣ㸪ΰྜ⁐፹୰࡛ࡢⅣ㓟໬཯ᛂ࡟ࡼࡾྜᡂࡋࡓࠋ࢚ࢱࣀ࣮ࣝ࡜࢚ࢳࣞࣥࢢࣜࢥ࣮ࣝࡢΰྜ⁐፹㸦㔜㔞ẚ࡛ 7:3㸧497.5 g ࡟Ỉ㓟໬࢝ࣝࢩ࣒࢘ࢆ 2.5 gᢞධࡋ࡚㸪 ᗘࢆ 20°C ࡟ㄪ⠇ࡋࡓ㸬ࡑࡢᚋ㸪஧㓟໬Ⅳ⣲㸦30 vol%㸧࡜❅⣲ࡢΰྜ࢞ࢫࢆ 1 L/min ࡢὶ㔞࡛྿ࡁ㎸ࡳ㸪Ⅳ㓟໬཯ᛂࢆ㛤ጞࡋࡓ㸬90 ศ㛫཯ᛂࡉࡏࡓᚋ㸪3500 rpm ࡛ 20 ศ㛫㐲ᚰศ㞳ࡍࡿࡇ࡜࡛ᅛᾮศ㞳ࡋࡓ㸬Ⅳ㓟࢝ࣝࢩ࣒࢘ࢼࣀ⢏Ꮚࡀศᩓࡋࡓୖ⃈ࡳᾮࡢ⢓ᛶಀᩘࡢ ᐃ⤖ᯝ㸦Ǎ=2.78 mPa·s㸧ࢆࡶ࡜࡟㸪ᾮ୰࡟ศᩓࡋࡓⅣ㓟࢝ࣝࢩ࣒࢘ࢼࣀ⢏Ꮚࡢ⢏Ꮚᚄศᕸࢆ㸪ືⓗගᩓ஘⿦⨨࡟ࡼࡾ ᐃࡋࡓ㸬ࡑࡢ⤖ᯝ㸪ࢼࣀ⢏Ꮚࡢᖹᆒ⢏Ꮚᚄࡣ 19.5 nm ࡛࠶ࡗࡓ㸬 ศᩓᾮ᧠ᢾࡢຠᯝࢆㄪ࡭ࡿࡓࡵ࡟㸪᧠ᢾᶵࢆ⏝࠸࡚ 10 ࠶ࡿ࠸ࡣ 300 rpm ࡛ᡤᐃ᫬㛫᧠ᢾࡋࡓ㸬᧠ᢾ᧯సᚋࡢ⁐ᾮࢆᡤᐃ᫬㛫⇍ᡂࡋ࡚㸪㐲ᚰศ㞳㸪࢚ࢱࣀ࣮ࣝὙίᚋ㸪ᚓࡽࢀࡓỿẊ≀ࢆ 24 ᫬㛫┿✵஝⇱ࡋࡓ㸬⏕ᡂ≀ࡢẚ⾲㠃✚࡜⣽Ꮝศᕸࡣ㸪❅⣲྾╔㔞 ᐃ⿦⨨࡛ ᐃࡋࡓ㸬⤖ᬗᵓ㐀ࡣ XRD ࢆ⏝࠸࡚ホ౯ࡋ࡚㸪ࣆ࣮ࢡᙉᗘ࠿ࡽࣂࢸࣛ࢖
ࢺࡢ๭ྜࢆ⟬ฟࡋࡓ㸬⾲ 1㸸࣓ࢯ࣏࣮ࣛࢫⅣ㓟࢝ࣝࢩ࣒࢘ࡢ⢏Ꮚ≉ᛶ3.

᧠ᢾ᫬㛫 [h]ࣂࢸࣛ࢖ࢺࡢ๭ྜ [%]ẚ⾲㠃✚ [m2/g]ᖹᆒ⣽Ꮝᚄ [nm]

0

0

182

11

4

7.4

155

11

8

19

121

8.9

12

57

138

5.4

24

100

142

4.1

⤖ᯝ

 ᚓࡽࢀࡓ⢏Ꮚࡢ≉ᛶࢆ⾲
⾲ 1 ࡟♧ࡍ㸬࠸ࡎࢀࡢ⢏Ꮚࡶẚ⾲㠃✚ࡣྠ⛬ᗘࡢ್ࢆ♧ࡋࡓ㸬ศᩓᾮࢆ 300 rpm㸦᧠ᢾ
Re=4000㸧ࡢ㏿ᗘ࡛᧠ᢾࡍࡿࡇ࡜࡛㸪ࣂࢸࣛ࢖ࢺࡢ๭ྜࡀቑ࠼㸪ࡑࢀ࡟క࠸ᖹᆒ⣽Ꮝᚄࡣῶᑡࡋ࡚࠸ࡿ㸬୍⯡࡟Ⅳ㓟࢝ࣝࢩ࣒࢘ࡢ⤖ᬗᵓ㐀ኚ໬ࡣ㸪࢔ࣔࣝࣇ࢓ࢫⅣ㓟࢝ࣝࢩ࣒࢘࠿ࡽࣂࢸࣛ࢖ࢺ࡬ࡢ㌿⛣㸪ࡑࡢᚋࡢ⁐ゎ࣭෌⤖ᬗ࡟− 214 −

ࡼࡿ࢝ࣝࢧ࢖ࢺ࡬ࡢ㌿⛣ࢆ⤒ࡿ㸪࠸ࢃࡺࡿ࢜ࢫࢺ࣡ࣝࢻẁ㝵๎࡛ㄝ࡛᫂ࡁࡿ㸬᧠ᢾ᧯స࡟ࡼࡗ࡚㸪ࣂࢸࣛ࢖ࢺ࠿ࡽ
࢝ࣝࢧ࢖ࢺ࡬ࡢ┦㌿⛣ࡀ㉳ࡇࡾ࡟ࡃࡃ࡞ࡗࡓ࡜⪃࠼ࡿ࡜㸪ศᩓᾮࡢὶື≧ែࡀ┦㌿⛣࡟ᙳ㡪ࡍࡿࡣࡎ࡛࠶ࡿ㸬ࡑࡇ࡛㸪᧠ᢾ㏿ᗘࢆ 10 rpm㸦᧠ᢾ Re=140㸧࡜ࡋࡓ࡜ࡇࢁ㸪24 h ᧠ᢾࡋࡓᚋ࡟⇍ᡂࡋ࡚ᚓࡽࢀࡓ⢏Ꮚࡣࣂࢸࣛ࢖ࢺ࡛࠶
ࡗࡓ㸬୍᪉㸪ࢩ࢙࢖࣮࢝ࢆ⏝࠸࡚ 100 rpm ࡢ㏿ᗘ࡛ 24 h  ᚟᣺࡜࠺ࡋࡓ⤖ᯝ㸪࢝ࣝࢧ࢖ࢺ࡜࡞ࡗ࡚࠸ࡓ㸬௨ୖࡢࡇ࡜࠿ࡽศᩓᾮࡢὶື≧ែࡀ⤖ᬗከᙧ࡟ᙳ㡪ࡍࡿࡇ࡜ࡣ᫂ࡽ࠿࡛࠶ࡾ㸪௒ᚋࡣ㸪ࢥࣟ࢖ࢻ࿘ᅖࡢỈࡢᩘᐦᗘࡸືⓗᣲື㸪᧠ᢾ Re ࡀᵓ㐀ኚ໬࡟ཬࡰࡍᙳ㡪ࢆ᳨ウࡍࡿணᐃ࡛࠶ࡿ㸬4.

⤖ㄽ ஧✀㢮ࡢ࣓ࢯ࣏࣮ࣛࢫⅣ㓟࢝ࣝࢩ࣒࢘㸦ࣂࢸࣛ࢖ࢺ㸪࢝ࣝࢧ࢖ࢺ㸧ࢆᚓࡿ᪂つྜᡂἲࢆᥦ᱌ࡋࡓ㸬ᮏไᗘࢆ฼⏝ࡍࡿࡇ࡜࡛࣓ࢯ࣏࣮ࣛࢫⅣ㓟࢝ࣝࢩ࣒࢘ࡢᵓ㐀ᙧᡂ㐣⛬ࢆ᳨ウࡍࡿࡇ࡜ࡀ࡛ࡁࡓ㸬
5.

ཧ⪃ᩥ⊩

[1] S. Yamanaka, T. Oiso, Y. Kurahashi, H. Abe, K. Hara, T. Fujimoto, Y. Kuga, "Scalable and template-free production ofmesoporous calcium carbonate and its potential to formaldehyde adsorbent", J. Nanoparticle Res., 16, 2266 (2014)[2] S. Yamanaka, Y. Sugawara, T. Oiso, T. Fujimoto, Y. Ohira, Y. Kuga, "Phase transformation of mesoporous calcium
carbonate by mechanical stirring", CrystEngComm, 17, 1773 (2015)㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 215 −

ᬗᯒ࡟ࡼࡿᚤ⢏Ꮚ⏕ᡂࣉࣟࢭࢫ࡟࠾ࡅࡿᚤ⤖ᬗࡢᵓ㐀ไᚚ࡜≉ᛶホ౯ᐩᒣ኱Ꮫ኱Ꮫ㝔 ⌮ᕤᏛ◊✲㒊ᒣᮏ ㎮⨾
㸯㸬⥴ ゝ
ᬗᯒ᧯సࡣ་⸆ရࡸ໬ᡂရࡢ〇㐀ᕤ⛬࡟࠾ࡅࡿ㔜せ࡞ศ㞳⢭〇ἲࡢࡦ࡜ࡘ࡛࠶ࡾࠊ⤖ᬗࡢከᙧࡸ⢏ᚄࡢไᚚࡣ㔜せ࡞せ⣲ᢏ⾡࡟࡞ࡗ࡚࠸ࡿࠋ≉࡟་⸆ရ〇㐀ศ㔝࡛ࡣࠊ㏻ᖖ෭༷ᬗᯒࢆ⏝࠸ࡿࡀࠊ⏕ᡂࡉࢀࡿ⤖ᬗᙧࡣࠊ⸆ᮏ᮶ࡢ⸆ຠࡸ⤖ᬗ⢊యࡢࣁࣥࢻࣜࣥࢢ≉ᛶ࡟኱ࡁࡃᙳ㡪ࢆཬࡰࡍࠋࡇࢀࡲ࡛ࡢ◊✲࡛ࡣࠊඛࡎL-࢔ࢫࣃࣛࢠࣥ㓟ࡢ෭༷ᬗᯒ࡟࠾࠸࡚㉸㡢Ἴࢆ↷ᑕࡍࡿࡇ࡜࡟ࡼࡾ⤖ᬗࡢᙧ≧ࡀኚ໬ࡋࠊ↷ᑕ᮲௳ࢆ㐺ษ࡟ࢥࣥࢺ
࣮ࣟࣝࡍࢀࡤᲬ≧⤖ᬗࡀᚓࡽࢀࠊࡑࢀࡣᚤ⣽࡞ᯈ≧ᬗࡀ㞟ࡲࡗ࡚࡛ࡁࡿ㞟∦཮ᬗ࡛࠶ࡿࡇ࡜ࢆ♧ࡋࡓ1)ࠋḟ࡟ẼἻሪࢆ⏝࠸ࡓ෭༷ᬗᯒ࡟࠾ࡅࡿ㉸㡢Ἴ↷ᑕࡢᙳ㡪࡟ࡘ࠸᳨࡚ウࡋࠊ࿘ᅖὶయࡢ๧᩿ຊࡀẚ㍑ⓗᑠࡉࡃᢚ࠼ࡽࢀࡿẼἻሪ࡛ࡣࠊ㠀ᖖ࡟ⷧ࠸ᯈ≧ᬗ࡛ࡶከࡃࡀቯࢀࡎ⥔ᣢࡉࢀࡿࡇ࡜ࢆ♧ࡋࡓ2)ࠋᮏሗ࡛ࡣ㸪ࡼࡾ㧗࠸࿘Ἴᩘᖏࡢ㉸㡢Ἴࢆ⏝࠸᳨࡚ウࡋࡓࠋ
2. ᐇ㦂᪉ἲL-࢔ࢫࣃࣛࢠࣥ㓟㸦㛵ᮾ໬Ꮫ㸪ヨ⸆≉⣭㸧ࡢ㣬࿴Ỉ⁐ᾮ 200mL ࢆ 393K ࡢᬗᯒᵴෆ࡛ㄪ〇ࡋ㸪298K ࡲ࡛෭༷ᚋ㸦ᖹᆒ෭༷㏿ᗘ㸸0.008K/s㸧ࡉࡽ࡟ 15min 㟼⨨ࡋ࡚࠿ࡽ㉸㡢Ἴࢆ↷ᑕࡋࡓࠋࡑࡢᚋ㸪ヨᩱ⁐ᾮࢆᡤᐃ᫬
㛫 298K ࡟ಖࡗࡓᚋ㸪ಽ❧ᆺගᏛ㢧ᚤ㙾࡛෗┿᧜ᙳࡋࡓࠋࡑࡢ෗┿ୖ࡛⏕ᡂ⤖ᬗࡢ⢏Ꮚ㛗ᚄ࠾ࡼࡧ▷㛗ẚ(▷ᚄ㸭㛗ᚄ)ࡢศᕸࢆ

ᐃࡋࡓࠋࡲࡓ㸪⤖ᬗᵓ㐀ࡣ⢊ᮎ X ⥺ᅇᢡἲ㸦XRD㸧࡟ࡼࡾ☜ㄆࡋࡓࠋᬗᯒᵴࡣ Figure 1࡟♧ࡍࡼ࠺࡞㏱᫂࢔ࢡࣜࣝᶞ⬡〇ࡢ෇⟄≧㸦ෆᚄ 0.05m㸪㧗ࡉ

5cm‫כ‬㻌frequency type㸧ࡢ᣺ືᯈ㸦┤ᚄ 0.045m㸧㸪࿘ᅖ࡟ᗘㄪ⠇⏝ࡢࢪࣕࢣࢵࢺࢆഛ࠼࡚࠸ࡿࠋ㉸㡢Ἴ࿘Ἴᩘࡣ 26kHz㸪78kHz㸪
130kHz ࡢ 3 ẁ㝵࡟ኚ໬ࡉࡏ㸪↷ᑕ᫬㛫ࡣ 5s㸪60s ࡜ࡋࡓࠋK ᆺ
⇕㟁ᑐ࡜

ᗘィ

グ㘓⿦⨨㸦ࢢࣛࣇࢸࢵࢡ㸪midi LOGER GL200㸧ࢆ⏝࠸ࡓ⇕㔞ἲ࡛ᐃࡋࡓ㉸㡢Ἴ↷ᑕᙉᗘࡢᖹᆒ್ࡣ

1.24W/cm2 ࡛࠶ࡗࡓࠋ᭦࡟↷ᑕ 24 ᫬㛫ᚋࡢ⤖ᬗᠱ⃮ᾮࢆℐ㐣ࡋ࡚ᚓࡽࢀࡓ⤖ᬗ⢊ᮎࢆࢹࢩࢣ࣮ࢱ࣮୰࡛஝⇱ᚋ㸪XRD 㸦⢊ᮎ X ⥺ᅇᢡ㸧ࣃࢱ࣮ࣥࢆ

ᐃࡋࡓࠋ

circulatingwater㻌

15cm㻌

0.15m㸧࡛㸪ᗏ㒊࡟㉸㡢ἼⓎ᣺ჾ㸦KAIJYO, Quava mini, low

circulatingwater㻌

US㻌
t ra n s d u c e r 㻌
4.5cm‫כ‬㻌
Fig. 1 Sizes of test column㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹప࠸࿘Ἴᩘ࡛ࡣ⤖ᬗᯒฟ㔞ࡣከࡃ࡞ࡿࡀ㸪⤖ᬗ⮬యࡣ୙つ๎࡞ᙧ≧࡟࡞ࡿഴྥࡀ࠶ࡗࡓࠋ↷ᑕᚋ 18 ᫬㛫⤒ࡓ⤖ᬗ⩌ࡢ㛗ᚄศᕸ࡜▷㛗ẚ㸦▷ᚄ㸭㛗ᚄ㸧ศᕸࡢ㉸㡢Ἴ࿘Ἴᩘ࡜↷ᑕ᫬㛫࡟ࡼࡿኚ໬౛ࢆ Figure 2 ࡜
Figure 3 ࡟♧ࡍࠋࡲࡓ㛗ᚄศᕸࡢ୰ኸ್࡜▷㛗ẚศᕸࡢ᭱㢖್ࢆ Figure 4 ࡟♧ࡍࠋ60 ⛊↷ᑕࡢሙྜ࡟ࡣ㸪࿘Ἴᩘࡢቑຍ࡟కࡗ࡚ᰕ≧ᬗࡀ࡛ࡁࡸࡍࡃ㛗ᚄࡀ኱ࡁࡃ࡞ࡾ 130kHz ࡛ࡣ▷㛗ẚࡀ 0.1 ࡟㐩ࡋࡓࠋXRD

ᐃ⤖ᯝࡢ౛ࢆ Figure 5 ࡟♧ࡍࡀ㸪࠸ࡎࢀࡢ↷ᑕ᮲௳࡛ࡶ Į ᙧ࡛㸪ᯈ≧ᬗ࡟ᑐᛂࡍࡿ(200)㠃ࡢࣆ࣮ࢡᙉᗘࡀ᭱ࡶᙉ
ࡃ⌧ࢀ㸪ᰕ≧ᬗ࡟ᑐᛂࡍࡿ(011)㠃ࡢࣆ࣮ࢡᙉᗘࡣ┦ᑐⓗ࡟ᑠࡉ࠿ࡗࡓࠋ㉸㡢Ἴ↷ᑕ࡟ࡼࡗ࡚ᯈ≧ᬗࡀᙧᡂࡉ
ࢀࡿࡀ㸪㧗࿘Ἴᩘ࡛ࡣࡼࡾ⣽࠿࠸ᯈ≧ᬗ࡜࡞ࡾ㸪ࡑࡢᚋ㸪㞟∦཮ᬗࢆᙧᡂࡋ࡚ᰕ≧ᬗ࡬࡜ኚ໬ࡍࡿࡶࡢ࡜᥎
ࡉࢀࡿࠋࡇࢀࡣ㸪20kHz ࡢ㉸㡢Ἴࢆ⏝࠸ࡓ᪤ሗ 1) ࡢ⤖ᯝ࡜ࡶ▩┪ࡏࡎ㸪ᰕ≧ᬗࡢᶓ᩿㠃࡜࡯ࡰྠࡌ኱ࡁࡉ
ࡢ㠀ᖖ࡟ⷧ࠸ᅄゅᙧࡢᯈ≧ᬗࡢ⏕ᡂࡶ㸪ẼἻሪᬗᯒ࡟ࡼࡾ᪤࡟☜ㄆࡉࢀ࡚࠸ࡿ  ࠋ㸬⤖ ゝ
L-࢔ࢫࣃࣛࢠࣥ㓟ࡢ෭༷ᬗᯒ࡟࠾࠸࡚㸪⤖ᬗࡢᙧ≧ࡸ⢏ᚄࡢ㉸㡢Ἴ↷ᑕ࡟ࡼࡿ⡆౽࡞ไᚚࡢྍ⬟ᛶࢆ᳨ウ− 216 −

ࡋࡓࠋ60 ⛊↷ᑕࡢሙྜ࡟ࡣ㸪࿘Ἴᩘࡢቑຍ࡟కࡗ࡚ᰕ≧ᬗࡀ࡛ࡁࡸࡍࡃ࡞ࡗࡓࠋࡇࡢཎᅉ࡜ࡋ࡚㸪㉸㡢Ἴ↷ᑕ࡟ࡼࡗ࡚ᯈ≧ᬗࡀᙧᡂࡉࢀࡿࡀ㸪㧗࿘Ἴᩘ࡛ࡣࡼࡾ⣽࠿࠸ᯈ≧ᬗ࡜࡞ࡾ㸪ࡑࡢᚋ㸪㞟∦཮ᬗࢆᙧᡂࡋࡉࢀࡿ  ࠋ

1

Cumulative frquency [-]Cumulative frquency [-]࡚ᰕ≧ᬗ࡬࡜ኚ໬ࡍࡿࡶࡢ࡜᥎

0.8
0.6
0.4

5sec
26kHz
78kHz
130kHz

0.2
0
0

20

40

60

80

1
0.8
0.6
0.4

60sec
26kHz
78kHz
130kHz

0.2
0
0

100

20

40

60

80

100

Clystal length [ ȣm]Clystal length [ ȣm]Fig. 2 Changes in the size distribution of L-aspartic acid crystals generated under US irradiation.
1

1

US irradiation time : 5s
26kHz
78kHz
130kHz0.6

US irradiation time : 60s

0.8Fraction [-]Fraction [-]

0.8

0.4
0.2

26kHz
78kHz
130kHz

0.6
0.4
0.2

0
0

0.2

0.4

0.6

0
0

0.8

0.2

0.4

0.6

0.8

Breadth/Length [-]Breadth/Length [-]Mode of aspect ratio [-]Median length [ȣm]Fig. 3 Changes in the breadth/length ratio of L-aspartic acid crystals generated under US irradiation.
60
40

5sec

20
0
0

60sec
50

100

1
0.8

0.4

60sec

0.2
0
0

150

5sec

0.6

50

100

150

US frequency [kHz]US frequency [kHz]Fig. 4 Effects of US irradiation conditions on the length and the breadth/length ratio of crystals.

Fig. 5 XRD pattern of L-aspartic acid crystals
generated under US irradiation.㻌㹙ཧ⪃ᩥ⊩㹛 ᒣᮏ㎮⨾㸪ᕝᓮ༤ᖾ㸪Ỉ㔝ගᅜ㸪᳃ⱥ฼㸪⢊యᕤᏛ఍ㄅ㸪51(3), 124-130 (2014)
 Yamamoto, T., S. Komiyama, T. Arai, H. Kawasaki and H. Mori, Proc. Joint congress of ACTS-2014 and CGOM11, PA-51 (2014, Nara, Japan) ᆏᮾ෪௓㸪ຍ⸨ㄔஓ㸪ᒣᮏ㎮⨾㸪᳃ⱥ฼㸪ศ㞳ᢏ⾡఍ᖺ఍ 2016 ㅮ₇せ᪨㞟㸪S6-2 (2016) ᒣᮏ㎮⨾㸪ᆏᮾ෪௓㸪᳃ⱥ฼㸪➨ 25 ᅇࢯࣀࢣ࣑ࢫࢺ࣮ࣜウㄽ఍ㅮ₇ㄽᩥ㞟㸪P24 (2016)㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 217 −

㟁ᯒἲ࡜㑅ᢥ⁐ゎἲࢆ⏝࠸ࡓࢼࣀ࣏࣮ࣛࢫᵓ㐀స〇᳨ウ᪩✄⏣኱Ꮫ ࢼࣀ࣭ࣛ࢖ࣇ๰᪂◊✲ᶵᵓ㰻⸨ ⨾⣖Ꮚ◊✲┠ⓗ㔠ᒓࢼࣀ⢏Ꮚࡣప⼥Ⅼࡑࡋ࡚㧗࠸཯ᛂάᛶࢆࡶࡘࡇ࡜࠿ࡽࡉࡲࡊࡲ࡞ศ㔝࡛ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ୍᪉ࠊ
ࢼࣀ࣏࣮ࣛࢫᮦᩱ࡟࠾࠸࡚ࡶࢼࣀ⢏Ꮚྠᵝ㧗࠸཯ᛂάᛶࡸࢼࣀ࣏࢔㒊ࢆ฼⏝ࡋࡓࢭࣥࢩࣥࢢࡢᛂ⏝ࡀᮇᚅࡉࢀࡿࠋ
ࡲࡓࢼࣀ࣏࣮ࣛࢫᮦᩱࡣప ࡛ࡢ↝⤖ࡀ㐍⾜ࡍࡿ࡜ሗ࿌ࡉࢀ࡚࠾ࡾ[1ࠊ2]ࠊ᥋ྜᢏ⾡࡬ࡢ᪂ࡓ࡞ᛂ⏝໬ࡀᮇᚅࡉ
ࢀࡿࠋᮏ◊✲࡛ࡣప ࡛ࡢ↝⤖࡬ࡢᛂ⏝ࢆぢᤣ࠼ࠊAu-Ag ྜ㔠㟁ᯒ⭷࠿ࡽࡢ㑅ᢥ⁐ゎ㸦Dealloying㸧࡟ࡼࡾࢼࣀ
࣏࣮ࣛࢫᵓ㐀ࢆస〇ࡍࡿ᳨ウࢆ㐍ࡵ࡚࠸ࡿ [3ࠊ4]ࠋ ࡉࡽ࡟ࢼࣀ࣏࣮ࣛࢫᮦᩱࡢ㛤Ⓨ࡜ࡑࢀ࡟ࡼࡿ㧗ᛶ⬟࣭㧗ಙ㢗ᛶ᥋ྜ㒊ࡢ๰ฟࢆ⾜࠺᳨ウࡶ㐍ࡵࡓࠋ◊✲᪉ἲ

⾲㸯Au-Ag ᾎ⤌ᡂᐇ㦂᪉ἲ
Au-Ag ࡢ⭷ᙧᡂࡣ㟁Ẽ໬Ꮫ

ᐃ⿦⨨

ヨ⸆
⃰ᗘ
HAuCl4·4H2O 1 mM
AgNO3
2 mM, 4mM
Thiourea
0.2 M
H2SO4
0.01M

㸦HZ7000ࠊ໭ᩯ㟁ᕤᰴ㸧ࢆ⏝࠸࡚⾜ࡗࡓࠋ⾲  ࡟⁐ᾮᵓᡂ[5]ࢆ♧ࡍࠋ700 mV vs.
Ag/AgCl ศ࠿ࡽ  ศࡢ㟁ᯒᚋࢼࣀ࣏࣮
ࣛࢫᵓ㐀ࡣ◪㓟ࢆ⏝࠸ࠊ10 s ࡢ࢚ࢵࢳࣥࢢ
ࢆ⾜࠺ࡇ࡜࡟ࡼࡾᙧᡂࡋࡓࠋ⭷⤌ᡂศᯒࡣ ICP-MS㸦ICAP-QࠊThermo Scientific㸧ࠊ⾲ 2 Au-Ag ⭷⤌ᡂศᯒ⤖ᯝ

ICP-OES (Agilent 5100㸧ࡸ GD-OES JY5000RFࠊᇼሙ〇సᡤ♫〇 ࢆ⏝࠸࡚⾜ࡗࡓࠋ

Au at. % Ag at. %Au wt. %Ag wt. %ᙧែほᐹࡣ FE-SEM㸦S-4800ࠊओ᪥❧ࣁ

Au:Ag=1:2

35.2

64.8

50

50

࢖ࢸࢡࣀࣟࢪ࣮ࢬ㸧ࢆ⏝࠸࡚⾜ࡗࡓࠋ

Au:Ag=1:4

23.8

76.2

36.5

63.5

⤖ᯝ  Au-Ag 㟁ᯒ⭷ࡢ⤌ᡂศᯒ⤖ᯝ
⾲ 2 ࡟ ICP ࡟ࡼࡿ㟁ᯒ⭷ࡢ⤌ᡂศᯒ⤖ᯝࢆ♧ࡍࠋAu-Ag ࡢ㔠ᒓ⃰ᗘẚࡀ 1 ᑐ 2 ࡢ⁐ᾮࢆ⏝࠸࡚స〇ࡋࡓ⭷࡛ࡣ⣙ 65 at. 㸣ࡢ Ag ࡢ⭷ࡀᚓࡽࢀࡓࠋAg ࡢ๭ྜࡢከ࠸ᾎ࡛స〇ࡋࡓ⭷࡛ࡣ 76 at. 㸣࡜࡞ࡗࡓࠋGDOES ࢆ⏝࠸ࡓ⭷῝ࡉ᪉ྥࡢ⤌ᡂศᯒࢆᅗ 1 ࡟♧ࡍࠋᇶᯈ⏺㠃ࡸ⾲㠃࡟࠾࠸࡚ Ag ࡢ๭ྜࡀᑡࡋከࡃ࡞ࡗ࡚࠸ࡿࡇ࡜ࠊࡲࡓ Ag
ࡢ๭ྜࡢከ࠸ᾎ࡛స〇ࡋࡓ⭷࡛ࡣ⭷୰࡟࠾࠸࡚ࡶ Au ࡢ๭ྜࡀᑡ࡞࠸ࡇ࡜ࠊࡉࡽ࡟ࡣ⭷⾲㠃࡛ࡶᑡ࡞࠸ࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ⾲㠃࡟࠾ࡅࡿ Au ࡢ⤌ᡂࡢపୗࡣ⁐ᾮ⃰ᗘࡀప࠸ࡇ࡜࡟ࡶ㉳ᅉࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࠊ௒ᚋ㔠ᒓ࢖࢜ࣥ⃰ᗘ࡜ࡢ㛵㐃࡟ࡘ࠸࡚ࡶㄪ࡭࡚࠸ࡃணᐃ࡛࠶ࡿࠋస〇ࡋࡓ Au-Ag 㟁ᯒ⭷ࡢ FE-SEM ീࢆᅗ 2 ࡟♧ࡍࠋAg ࡢ๭ྜࡢከ࠸ᾎ㸦Ag 4 mM㸧࡛స〇ࡋࡓ⭷ࡢ᪉ࡀ⦓ᐦ
࡞⭷ࢆᙧᡂࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋඛ࡟㏙࡭ࡓ㔠ᒓ⃰ᗘ࡜ࡢ㛵㐃ࡶᙳ㡪ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࠊ௒ᚋ㛵㐃ᛶ࡟ࡘ࠸࡚ࡶホ౯ࢆ㐍ࡵ࡚࠸ࡃணᐃ࡛࠶ࡿࠋ௒ᚋࡉࡽ࡞ࡿゎᯒࠊ࡞ࡽࡧ࡟᥋ྜホ౯ࢆ㐍ࡵ࡚࠸ࡃணᐃ࡛࠶ࡿࠋ


− 218 −














(a) Ag 2 mM(a) Ag 4 mM



ᅗ 1.  GDOES ࡟ࡼࡿ Au-Ag 㟁ᯒ⭷ࡢ⭷୰⤌ᡂศᯒ⤖ᯝ











(a) Ag 2 mM(a) Ag 4 mM
ᅗ 2Au-Ag 㟁ᯒ⭷ࡢ FE-SEM ീ

200 nm⤖ㄽAu ࢼࣀ࣏࣮ࣛࢫᵓ㐀ࡢᙧែ࡟ᙳ㡪ࢆཬࡰࡍ࡜⪃࠼ࡽࢀࡿ Au-Ag ࡢ㟁ᯒᾎ⤌ᡂࢆኚ໬ࡉࡏࠊ⭷ᙧᡂ᳨ウࢆ㐍ࡵࡓࠋᾎ⤌ᡂࢆኚ᭦ࡍࡿࡇ࡜࡟ࡼࡾస〇ࡋࡓ⭷⤌ᡂࡀኚ໬ࡍࡿࡇ࡜ࠊࡲࡓ⭷୰⤌ᡂࡶኚ໬ࡍࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ
Ag ࡢ๭ྜࡢከ࠸ᾎ㸦Ag 4 mM㸧࡛స〇ࡋࡓ⭷ࡢ᪉ࡀ⦓ᐦ࡞⭷ࢆᙧᡂࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ௒ᚋࡉࡽ࡟㔠ᒓ࢖࢜ࣥ⃰ᗘ࡜ࡢ㛵㐃ࡸ᥋ྜᙉᗘ࡜ࡢ㛵㐃࡟ࡘ࠸᳨࡚ウࢆ㐍ࡵ࡚࠸ࡃணᐃ࡛࠶ࡿࠋ

5. ཧ⪃ᩥ⊩[1] M. Saito, K. Matsunaga, J. Mizuno, H. Nishikawa, 5th Electronics System-Integration Technology Conference, ESTC 2014
Category numberCFP14TEM-ART; Code 109411. Article number 6962819.
[2] K. Matsunaga, Min-Su Kim, H. Nishikawa, M. Saito, J. Mizuno, 55th Electronics System-Integration Technology
Conference, ESTC 2014 Category numberCFP14TEM-ART; Code 109411. Article number 6962855.
[3] J. Erlebacher, M. J. Aziz, A. Karmer, N. Dimitrov, and, K. Sieradzki, Nature, 1410, 450--453 (2001).
[4] Z. Zhang, Y. Wang, Z. Qi, W. Zhang, J. Qin, and J. Frenzel, J. Phys. Chem. 113, 12629-12636 (2009).
[5] Y-Y. Tang, C-L. Kao. And P-Y. Chen, Analytical Chimica Acta, 711, 32-39 (2012).

    (ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢢ࣮ࣜࣥࣉࣟࢭࢫᏛศ㔝)− 219 −

ᅜ㝿ඹྠ◊✲ㄢ㢟࣭◊✲ሗ࿌᭩㻌㻌୍࠙⯡බເ◊✲ㄢ㢟㸦ᅜ㝿ඹྠ◊✲ဨ Class S㸧㸧ࠚSolid phase fixation method for numerical simulation of fluid flowᡤᒓ㸸Beijing University of TechnologyẶྡ㸸Jiang Fan
gradually. As shown in Fig.2, when it reaches to 2.15 s, a

1. Introduction
To simplify the numerical modelling of the physicalsevere deformation occurs in the metal region. Therefore,

process which involve a liquid-solid phase change, wholesimply setting a large viscosity in metal region cannot fix

calculated domain is treated as fluid. A fixation method tothe fluid during calculation.

make the velocity decrease down to a limiting value ofzero in solidification become important to simulate theliquid-solid changing process. A large number ofnumerical techniques are available for the solution ofsolidification and fix the solid phase.
In this work, a few methods to fix metal fluid wereadopted to check whether the solid metal phase move or
not while calculation in FLUENT, which prepare fornumerical simulation of weld process.
0

2. Results of different methods

1

Fig.2 Region of liquid and gas at 2.15s

2.1 large viscosity in metal region
Assuming the metal region is fluid and the viscosity

2.2 Fix force by manual set

below melt point is very large. Computational domain is

Another method is to set an additional momentum

shown in Fig. 1, which is divided into three layers: middle

source term to express the behavior of solid regions inlayer is metal and others are gas layer. In order to simulate

metal phase below melting point. The fix force isthe relative movement between workpiece and welding

expressed as follows(1).

torch, the metal region flows from right to left with a

­ Fx
°
® Fy
°
¯ Fz

constant value as the welding speed.
Gas1010 (u  u0 )1010 v

(1)

10

10 w

Where Fx , Fy , Fz are the components in three
Metal

vout

directions, u , v , w are velocity of three directions,
u0 is welding speed.

vin

Gas
0

1

Fig.1 Initial region of liquid metal and gas
In the initial moment, there is no deformation on thesurface of metal region as shown in Fig.1. However, as thecalculated time going on, the surface begin to deform− 221 −

Fig.2 Region of liquid and gas at 0.27 s with fix force
methodFig.3 Velocity in three directions
2.2 Enthalpy-porosity techniqueFig.3 shows the velocity in three direction of the point

An enthalpy-porosity technique is used in ANSYS

on central line of metal region. As is shown in fig.2 andFluent for modeling the solidification/melting process. In

fig.3, with this method, monitoring the initial results

this technique, the melt interface is not tracked explicitly.

reveals that the solid region can be fixed, but theInstead, a quantity called the liquid fraction, which

computation process is time consuming. So it is notindicates the fraction of the cell volume that is in liquid

appropriate for liquid-solid changing simulation.

form, is associated with each cell in the domain. The liquid
fraction is computed at each iteration, based on an
enthalpy balance.(2)The mushy zone is a region in which the liquid fraction
lies between 0 and 1. The mushy zone is modeled as a
³SVHXGR´SRURXVmedium in which the porosity decreases
from 1 to 0 as the material solidifies. When the material
has fully solidified in a cell, the porosity becomes zero andhence the velocities also drop to zero.

Fig. 4 Fig.2 Region of liquid and gas at 2 s with enthalpyporosity technique
As is shown in Fig.4 and Fig.5, there is little
deformation of the interface between liquid and gas. The
velocity at different directions show that the value wave
near balance velocity, which is acceptable for thesimulation.

− 222 −

(2) V.R. Voller, C. Prakash. A fixed grid numericalmodelling methodology for convection-diffusion mushy
region phase-change problems. Int.J. Heat Mass Transfer,30(8):1709-1719.
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧Fig.5 Velocity in three directions with enthalpy-porosity
technique
3. Conclusion
Solid phase fixed methods for numerical study ofliquid-solid changing physical system were investigated.
Enthalpy porosity model in Fluent software is the mostappropriate method comprehensively considering the
fixed results and time consuming.
References(1) M. Hertel, A.Spille-Kohoff, U. Fussel and M. Schnick.
Numerical simulation of droplet detachment in pulsed gasmetal arc welding including the influence of metal vapor.
J.Phys.D:Appl.Phys. 46(2013): 224003.

− 223 −

୍࠙⯡බເ◊✲ㄢ㢟㸦ᅜ㝿ඹྠ◊✲ဨ Class B㸧㸧ࠚNumerical study of surface tension and Marangoni shearᡤᒓ㸸Beijing University of TechnologyẶྡ㸸Xu Bin

Boundary tracking methods are used whenIn the above equation, J is the surface tension
coefficient, F is the function value of VOF.

numerically analyze the deformation of free surface andComponents of surface tension expressed as follows.

1. Introduction

fluid flow in weld pool of keyhole plasma arc welding(KPAW). Surface tension and Marangoni shear are two of

Fstx

Fst  ni§ F · FxJ  ¨¨¸¸© F ¹ F

(2)

Fsty

Fst  n j

§ F · FyJ  ¨¨¸¸© F ¹ F(3)the main driving forces acting on the boundary. It is
important for achieving correct calculation to express
these driving forces with boundary tracking function.
In this work, volume of fluid (VOF) method was

Gradient of VOF value can be expressed by vector.

adopted to track the boundary of gas phase and liquid
metal phase. Components of surface tension andF

Marangoni shear at x, y, and z directions were calculatedwith VOF value of liquid metal.
2. Expression of surface tension and Marangoni
shear
2.1 Surface tension
Surface tension and Marangoni shear can be expressed

(5)

F

Fx 2  Fy 2

(6)

F
F

Fy
Fx
i
j
F
F

(7)

Therefore, the curvature can be derived as follows.

as follows (1).
Fst§ F ·
  ¨¨¸¸© F ¹Fx i  Fy j

§ F · FJ  ¨¨¸¸© F ¹ F

Fxx F  Fx F x
F

2



(1)

Fyy F  Fy F yF

2

Fx F x  Fy F y º
1 ª« Fxx  Fyy 
»
F «¬
F
»¼

(F ) F º
1 ª 2
« F 
»
F ¬
F
¼

2 ½
2
­
ª§ wF
wF · § w
w · º § wF · § wF · °
°
i
j
i
j



«
»
¨
¸
¨
¸
¨
¸
¨
¸
wy ¹ © wx wy ¹ ¼ © wx ¹ © wy ¹ °° w 2 F w 2 F ¬© wx
1
 2 
®
¾
2
2
2
2
2
wx
wy
°
§ wF · § wF ·§ wF · § wF · °


°
¨
¸ ¨
¨
¸ ¨
¸
¸ °
© wx ¹ © wy ¹
© wx ¹ © wy ¹ ¯¿

2.2 Marangoni shear

G (n  ns )Marangoni shear is defined as (1)

S
s

 sT

dJ
G (n  ns )
dT

(9)

(10)

Delta function is used to distribute theis surface tangential gradient., delta function (2)G (n  ns ) is written as.

3
wF
wF(1  F 2 ) ( ) 2  ( ) 2
4
wx
wy

(8)

Marangoni shear in boundary layer.
Tangential gradient of temperature can becalculated like the tangential vector of surface as
is shown in Fig.1.

− 224 −

ªCij º
¬ ¼n

y

n Cij

n

n Cij cos T
Ci(xi,yi)Cij cos TªCij º¬ ¼n

Cijj cos T nªCij º¬ ¼s

n Cij nCij  ª¬Cij º¼
n

 sT

T

Cij

Cj(xj,yj)T  n TT nCij  n Cij nx

Fig.1 Expression of temperature tangential gradientIn the equation (2) a constant ofdJdT

can bedeformation of weld pool free surface, the above
components need to include in the momentum source term.

adopted. Components of temperature tangential gradient

3. Calculation of curvature and fluid flow

are defined as follows.

In order to verify the accuracy of the above function

wF
wx

in the numerical calculation, the curvature and fluid flow

n i

2

under the effects of surface tension and Marangoni shear§ wF · § wF ·¨¸ ¨¸© wx ¹ © wy ¹

n j

(11)

2

wF
wy
2

§ wF · § wF ·¨¸ ¨¸© wx ¹ © wy ¹§·
¨  T  § n  T · n ¸  i
¨
¸ ¸
¨
©
¹
©
¹

§
·
¨  T  § n  T · n ¸  j
¨
¸ ¸
¨
©
¹
©
¹

were numerically calculated by Fluent.

(12)

2

wF § wF wT wF wT ·
wy ¨© wy wx wx wy ¸¹
2§ wF · § wF ·¨¸ ¨¸© wx ¹ © wy ¹

2

wF § wF wT wF wT ·
wx ¨© wy wx wx wy ¸¹
2§ wF · § wF ·¨¸ ¨¸© wx ¹ © wy ¹

2

Gas

Liquid(13)

Fig. 2 Verified calculation of curvature(14)

As is shown in Fig. 2, there are two phases of liquidand gas in the calculated domain. Due to liquid zone is aquarter circle, the surface curvature of the interface should

When numerical analyzing the fluid flow andbe 1. From the results it can be seen that the calculated− 225 −

curvature is basically correct.
Fig.3 shows the fluid flow of the liquid under driving
effects by surface tension and Marangoni shear. In thisfigure, Th is high temperature region and Tl is low
temperature region. The fluid flow from high temperature
region to low temperature region on the boundary of twophases. The velocity is agree with the study of reference
(3).

Tl

References(1) P.S. Wei, J.S. Yeh, C.N. Ting, T. DebRoy, F.K.
Chung, C.L. Lin, The effects ofPrandtl number onwavy weld boundary, Int. J. Heat Mass Transfer 52(2009)3790̢3798.
(2) Comsol1998-³&KHPLFDO(QJLQHHULQJ
02'8/(´%2,/,1*:$7(5-156(3) M. Tanaka, H. Terasaki, M. Ushio, J. J. Lowke.
Numerical study of a free-burning argon arc withanode melting. Plasma chemistry and plasma
processing. 23(3), 2003: 585-606
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧Th
Fig.3 Fluid flow driving by surface tension andMarangoni shear
4. Conclusion
Flow driving forces of surface tension andMarangoni shear were numerically expressed with the
VOF function value. Verified calculation indicated thatcurvature and fluid flow were basically correct. However,
if numerical simulation of weld process uses these above
function, it need to be adjusted according to the actual
situation.

− 226 −

୍࠙⯡බເ◊✲ㄢ㢟㸦ᅜ㝿ඹྠ◊✲ဨ Class B㸧ࠚ

Carbide Characterization in T91 HAZ
Mr. Somporn Peansukmanee
KINGWELD, KMUTT, THAILAND
This research work carried out within the JIJReC Program in cooperation between JWRI, Osaka University
and KINGWELD KMUTT, Thailand in a period between 23 Aug. 2016 and 4 Sep. 2016 (13 days).
Introduction
1. To observe the Cr/Fe content in carbide precipitates along the grain boundaries from various creep
conditions of T91 steel at FGHAZ (fine-grain heat affected zone) and ICHAZ (inter-critical heataffected zone) using FE-SEM.
2. To observe misorientation between carbides and grain boundaries using EBSD.
Experimental Procedure
1. Welded T91 samples were prepared into 2 groups. Each group was assigned to expose at 578qC or
552qC in creep testings. For each temperature, the first sample was deformed until failure in a creep
testing machine at static tension stress of 165 MPa (90% of T91 yield strength). The time to fracture
was then considered as 100% of creep duration. Then other samples were exposed in shorter duration
by percentage time rational as shown in table 1. The 0% samples were the as-PWHT condition.
2. Four samples: II-0%, II-20%, II-50%, and II-80%, were chosen to be observed using FE-SEM/EBSD.
To find the evolution of M23C6, all of the samples were finished by electro-polishing before EBSD
observation at FGHAZ and ICHAZ.
3. Mass percentage of Cr and Fe were analyzed by EDX at 4 locations that are A) inside grains, B) linear
grain boundaries, C) Y-junction grain boundaries, and D) individual particles as demonstrate in figure 1.
Table 1) Creep conditioning of 12 samples.
Creep condition at
90% yield strength
578qC
552qC

Ruptured<------------------ Conditioning period ----------------->As-PWHT
I-100%
II-100%I-80%
II-80%

I-50%
II-50%

I-30%
II-30%

I-20%
II-20%

I-10%
II-10%

I-0%
II-0%

Figure 1) Location of EDX analysis points e.g., along grain boundaries and in grains interested.
Experimental Results and Discussion− 227 −

1. EBSD results- The precipitated M23C6 at grain boundaries are mostly found at high angle grain boundaries. Amountof grain boundary tends to initiate more M23C6 precipitation. So, the M23C6 phase fraction area need tobalance with grain boundary length. This parameter shows in (1).
(1)
M23C6 fraction area per GB length = M23C6 fraction area / grain boundaries length- M23C6 of Fraction area per GB length tends to increase as rupture duration percentage increase, as
show in Figure 2. The result shows that the volume of M23C6 at grain boundaries relate to sample’s
ruptured duration. This parameter may use as indicator of T91 creep life remains.
Figure 2) M23C6 fraction area per GB length increasing by rupture duration.

Creep age

2. EDX results- Mass fraction of Cr/Fe at area A) inside grains and area B) linear grain boundaries from all samples
are stable at around 10% which is same as the normal Cr fraction of T91 base metal. While the resultat area D) individual particles are random, it can’t obtain the relation to ruptured duration.
- For the location C) Y-junction grain boundaries, each EDX result of ICHAZ is marked as red dot andblue diamond for FGHAZ as show in figure 3. These shows there are some areas that have Cr-richparticles. Chromium tends to increase during 0-50% of creep age. Because of Chromium forms tocarbide easily at Y-junction grain boundaries. However, after 50% crept, the fraction of Cr/Fe tends todecrease. It may result of carbide dissolution or grain boundaries move due to grain growth from creep.
- Precipitation of carbides at Y-junction grain boundaries may use as life indicator at initial stage of
creep, especially at fine grain area.
Figure 3) Mass fraction of Cr/Fe relating with % creep age.

Creep age (%)
Summary− 228 −

The various creep conditioned samples were observed by EBSD and EDX. The precipitated carbides show
their behaviors during creep conditioning. By EBSD, the fraction area of M23C6 per grain boundaries
length shows positive relations results with creep age. By EDX, the mass fraction of Cr/Fe at FGHAZ and
ICHAZ tend to increase until 50% creep age. Then it decrease, this may cause by carbide dissolution or
grain transformation.
Acknowledgements
Special thanks for Prof. Kazuhiro Ito who kindly share the facilities, resources and suggestions. Many
thanks for Prof. Kazuyuki Kohama and Mr. Hajime Yamamoto for warmly take care, not only thetechnical but also friendship. Thanks for Prof. Manabu Tanaka for accepting my application and warm
welcome for this trip. Period of stay here with all of JWRI’s people will be in my memories.
㸦ඹྠ◊✲ศ㔝:⁐᥋ᶵᵓᏛศ㔝㸧− 229 −

୍࠙⯡බເ◊✲ㄢ㢟㸦ᅜ㝿ඹྠ◊✲ဨ Class S㸧ࠚ

Report on Collaborative Research
Associate Prof. Abhay Sharma
Indian Institute of Technology Hyderabad, INDIA
This research work carried out within the JIJReC Program in cooperation between JWRI, Osaka University
and Indian Institute of Technology Hyderabad, India in a period between 15 May 2016 and 26 June 2016
(Working day: 30 days).
Theme: 1) Characterization of functionally graded material:
The visitor conducted collaborative research on functionally graded composites produced by friction
stirring. An innovative technique wherein an additive manufacturing method for the design andmanufacture of tailor-made functionally graded composites using friction stirring was developed. A
mathematical model was developed for achieving a compositional gradient over a predefined length in a
metal matrix composite. The model was demonstrated through manufacture of aluminum + TiC
functionally graded composite. Progressive gradients in hardness and local mechanical properties, like
Young’s modulus, stain hardening exponent, and yield stress obtained using the digital image correlation
technique. The process mechanism was elucidated with help of research conducted at JWRI throughbackscatter diffraction analysis (Fig. 1). The findings of the research were published in international
Journal. The details of the publication is as follows:

Fig. 1 Inverse pole figures and grain boundary misorientation maps.
Journal publication:
Abhay Sharma, Bandari Vijendra, Kazuhiro Ito, Kazuyuki Kohama, M. Ramji, B.V. Himasekhar Sai,
Friction Stir Additive Manufacturing Approach for Design and Manufacture of Tailor-made Functionally
Graded Composites, Journal of Manufacturing Processes, 26(2017), 122–130.

− 230 −

Theme: 2) Thermal management in manufacture of thin-walled additive manufacturingcomponents:
The major part of research during JIJReC was conducted on this theme. It is understood from literature
review that a significant progress has been made in last decade in area of arc-based additive manufacturing
wherein complex geometries could be successfully manufactured. Control of Inter-layer property variationand surface modulations are challenges addressed during this research. The challenges are more pertinent
for thin-walled components wherein surface area to volume ratio is higher, thus, thermal management
during metal deposition is a major concern. Thin-walled components over 100 layers were produced using
cold metal transfer welding. A constant inter-pass temperature is maintained and thermal gradients arerecorded. Inter pass cooling time, average layer thickness, and surface profile were measured. The researchduring the JIJReC program was aimed to understand effect of cooling arrangements on geometrical,
mechanical, and metallurgical characteristics of layered component. Tensile test, hardness, andmicrostructural examinations were made and result was analyzed. The result of this examination waspresented in two conferences:
Top

Intermediatetop

Mid

Intermediatebottom

bottomUTSinMPa

690
670
650
630
610
590
570
550
Conductive base Counductive & Convective w all Conductive base(A)
convective base(C)
& convective(A+B)
w all (A+C)

Fig. 2 Zone wise variation in tensile strength.
Fig. 3 Microstructures with different cooling strategies.
Conference publication:
Jayprakash P Sharma, Suresh Kumar Goak, Surya S Kumar, Kazuyuki Kohama, Abhay Sharma, Kazuhiro
Ito, Thermal management in manufacture of thin-walled components produced by arc-based additive
manufacturing, Proceedings of 10th International Conference on Trends in Welding Research & 9th
International Welding Symposium of Japan Welding Society (9WS), Tokyo, October 11 -14, 2016.
Abhay SHARMA, Jayprakash SHARMA, Kauzhiro ITO, Surya S KUMAR, Hajime YAMAMOTO, andKazuyuki Kohama, Investigation on Cooling Strategies during Wire Arc Additive Layer Manufacturing,
Visual-JW 2016, Osaka, October 17 -18, 2016. (Invited)
Follow-up research:
Currently we are working at IITH on thermal modelling of additive manufacturing. The results of theinvestigation will be analyzed along with the research data obtained during JIJReC program and will be
submitted for publication.
Theme: 3) MeltingphenomenoninwaveformsubmergedarcͲwelding(discussion):A tri-party collaborative research project between Hitachi Zosen, IIT Hyderabad, and JWRI is in progress.
The visitor attended a discussion meeting on project during his stay. The preliminary result data wasshared and future research was planned. An agreement on experiments and simulation was reached at.
Target of March 2107 was set for achieving a considerable progress.
㸦ඹྠ◊✲ศ㔝:⁐᥋ᶵᵓᏛศ㔝㸧− 231 −

୍࠙⯡බເ◊✲ㄢ㢟㸦ᅜ㝿ඹྠ◊✲ဨ Class S㸧ࠚDissimilar FSW between magnesium alloy and mild steel with Al-Mg as power
additives
Dr. Farazila Yusof
Senior Lecturer
Advanced Manufacturing and Materials Processing Centre (AMMP),
Department of Mechanical Engineering
Faculty of Engineering
University of Malaya
This research work carried out within the JIJReC Program in cooperation between JWRI, Osaka University
and AMMP Centre University of Malaya in a period between 1 April 2016 and 31 March 2017. This paper
is scheduled to be submitted to “MaterialsScience&EngineeringA” until the end of September.
1. Introduction
Environmental pollution and scarcity of fossil fuel are significant issues affecting the world today. One of thebiggest contributors to these problems is the transportation sector. It is estimated there are approximately 1.2 billion
motor vehicles on the road, which accounts for 75% amount of pollution and 27% emission of greenhouse gases and756 litres of petrol consumption per year [1]. The amounts of pollution and fuel consumption can be reduced
significantly by improving the fuel efficiency of the vehicle. One method to improve fuel efficiency is to reduce theweight of the vehicle by using light-weight materials such as aluminum and magnesium [2]. However, some parts ofthe vehicle, such as the body frame and structures, still require the high strength and toughness that can only be
fulfilled by the traditional use of steel. A possible solution is by using dissimilar materials joints that reduces theweight of the component without compromising the requirements of strength and toughness such as combination ofmagnesium and steel. However, joining of magnesium to steel is challenging since the maximum solubility of Fe in
Mg is only 0.00041 at. % [3]. This means that at ambient temperature, magnesium and steel do not mix and interact
with one another. Several techniques have been proposed to overcome the immiscibility of these joint such asutilizing the addition of metal powders into joining interface.
In the present study, Al-Mg powder additive was used in the FSW of AZ31 magnesium alloy and S45C mild
steel. The percentage of Al in the mixture was varied from 6% to 15% Al and Mg (bal.) wt. %, which were added as
metallurgical binders in the 0.5 mm gap between AZ31 magnesium alloy and mild steel plates. The welding speeds
selected were 25 mm/min, 50 mm/min and 100 mm/min. As mentioned in past studies, the welding speed is asignificant factor that has a direct influence on the heat input in an FSW process. The effect of powder additives andwelding speeds on tensile strengths, microhardness, fracture locations and microstructural features of weldedinterface were investigated.
(a)

(b)

2. Experimental procedure
The specimens for the FSW consist of a pair of metal platesof AZ31 magnesium alloy (hereafter AZ31) and mild steel(hereafter S45C) with length of 200 mm, a width of 50 mm
and a thickness of 1.5 mm. FSW was conducted using atungsten carbide (WC) cylindrical tool having a shoulder
diameter of 12 mm and a non-threaded 1.8 mm probe witha diameter of 4 mm, as shown in Fig. 1(a). The tool was
tilted with a rake angle of 3° to the vertical axis. The
rotational speed was kept constant at 500 rpm and thetraverse speeds were varied at 25, 50 and 100 mm/min.
Prior to welding, a blunt tool, shown in Fig. 1 (b), was used

− 232 −

(c)

(d)


Figure 1(a) Schematic diagram of the FSW tool withprobe 1(b) without probe, 1(c) illustration of the
FSW process, 1(d) schematic diagrams of tool offset
position.

to seal and densify the powder additive into the gap by running the tool along the welding path at a plunge depth of
0.1 mm. The schematic arrangement of the FSW process is shown in Fig. 1(c). The resultant joined specimens werecross sectioned and progressively grounded using increasing grades of emery paper up till 4000 grit size, andpolished with 0.05 μm of alumina powder. Field emission-scanning electron microscope (FESEM) equipped withenergy dispersive spectroscopy (EDS) was employed to analyze the microstructure and identify elemental
characterization of the specimens. Fractograph analysis of tensile specimens was conducted using scanning electron
microscope (SEM). While mechanical properties of the specimens were measured by tensile and micro-hardness
testing. The tensile specimens were prepared in accordance to ASTM: E8 and the tests were carried out using
Universal Testing Machine (INSTRON model 3369) at a pull rate of 0.5 mm/min transverse to the welding direction.

3. Results and discussion
Figure 2 shows the effect of welding speeds on tensile strengths of the FSW specimens, with and without powder
additives. Generally, the addition of metal additives of 6 wt. % Al and Mg (Bal.), and 10 wt. % Al and Mg (Bal.) has
resulted in increased tensile strengths as compared to specimens without powder additives at increasing traverse
speeds from 25 mm/min to 50 mm/min. The highest tensile strength of 150 MPa was achieved for the specimen withpowder additives of 10 wt. % Al and Mg (Bal.) at a welding speed of 50 mm/min. This tensile strength value is 17%
better than its equivalent specimen without powder additives. Increasing the welding speed to 100 mm/min has
resulted in a significant decrease of tensile strength of specimens with 6 wt. % Al and Mg (Bal.) and 10 wt. % Al
and Mg (Bal.) as compared to the specimen without powder additives, which could have been caused by insufficientheat generation at high welding speeds. Increasing the percentage of aluminum to 15 % has resulted in the decreaseof tensile strength for all welding speeds, and is lower than their corresponding non-powder added joints. The highAl powder content could havehindered the uniform dispersion of thepowders at the interface during
welding. In conclusion, the additionof Al-Mg powder additives in small
quantities (less than 10 %) andwelding with a low welding speeds,
would improve the tensile strength of
AZ31 magnesium alloy and S45C mild
steel. The observation from stressstrain curves have shown that the basematerials exhibited ductile behavior
while the welded sample shows abrittle behavior which implies thepossible formation of intermetallic
compound (IMC) layer at the interface.
Figure 2 Relationship between tensile strength joint and welding speed.

4. Conclusions
This study has demonstrated the effect of Al-Mg metal powder additives on dissimilar friction stir welding between
AZ31 magnesium alloy and S45C stainless steel. In general, the addition of low Al content (less than 10%) Al-Mg
powder additives into the joining interface, and welding at low welding speeds, would increase the joining strengthof the joint.

5. References
1) Linda C. Brinson, How much air pollution comes from cars? | HowStuffWorks, (n.d.). http://auto.howstuffworks.com/air
pollution-from-cars.htm (accessed March 25, 2017).
2) John Voelcker, 1.2 Billion Vehicles On World’s Roads Now, 2 Billion By 2035: Report, (n.d.).
http://www.greencarreports.com/news/1093560_1-2-billion-vehicles-on-worlds-roads-now-2-billion-by-2035-report(accessed March 25, 2017).
3) H. Kasai, Y. Morisada, H. Fujii, Dissimilar FSW of immiscible materials: Steel/magnesium, Mater. Sci. Eng. A. 624 (2015)
250–255.

㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 233 −

୍࠙⯡බເ◊✲ㄢ㢟 㸦ᅜ㝿ඹྠ◊✲ဨ &ODVV6㸤$㸧ࠚFabrication of nanocarbon/aluminum composites
through smart powder processing
Shanghai Jiao Tong University
Genlian Fan & Zhiqiang Li
1. Purpose
Nanocarbon reinforced aluminium based composites are regarded as a new generation oflight-weighted structural materials that combined with high strength, high stiffness, and goodductility. However, due to strong van der Waals interactions, the raw carbon nanotubes (CNTs) orgraphene nanosheets (GNSs) are easily agglomerated and hard to be dispersed into matrix.
Although much research work has been done to the dispersion and fabrication of nanocarbon
reinforced Al composites, an effective and mass productive method is not established yet.
The smart powder processing technique demonstrates great advantage in particle design andparticle assembly. By applying the mechanical force (shear and compression forces), the smaller(guest) particles will be disaggregated and adhered to surface of large (core) particles. By thistechnique, direct bonding between the particles at low temperature conditions in dry phase can beachieved. Therefore, it is an environmentally benign and cost effective processing to produce
composites.
In this study, we are exploring the feasibility of using smart powder processing to fabricate
CNT/Al composites. The effect of processing parameter, morphology of core particles and guest
particles, adding assistant particles on the dispersion uniformity of CNTs is systematically studied.
The goal of the project is to develop an in-depth understanding of smart powder processing,clarifying the factors that affect the dispersion of CNTs, and thus establishing an efficient andversatile method for the fabrication of CNT/Al composites with CNTs uniformly distributed. We
believe that the study on the fabrication of CNT/Al will also provide some new thoughts to thefabrication of other novel composites.
2. Experimental
To clarify the factors that affect the dispersion of CNTs, Al spherical powder (diameter of 30ȝm) and Al nanoflakes (diameter of 20-50ȝm and thickness of about 500 nm) were used as core
particles to check the effect of core particle morphology. CNTs and Al powder were first premixed
in a ultrahigh-shear mixer (Nobilta 130, Hosokawa Micron Corporation, Japan) at about 500 rpm
for 2 min, then were further processed at different speed for 10 minutes to check the effect ofprocessing parameter. The distribution of CNTs and microstructure of CNT/Al powders werecharacterized by a field emission scanning electron microscope (SEM; FEI SIRION 200). Raman
spectroscopy (Jobin-Yvon Labram 800) was performed by using the 523nm line of an Ar+ laser as
the excitation source to analyzing the structural damage of the CNTs. For comparison, TiO2
nanoparticles (diameter of 20 nm) were also mixed with Al nanoflakes by the similar process tocheck the effect of nanoparticle morphology on the dispersion status.
3. Results
The morphology of raw Al spherical powder, raw CNTs, and composite powder processed by− 234 −

the smart powder processing was shown in Fig.1. Compared to raw CNTs which were in big
clusters (Fig.1b), CNTs are disaggregated and attached to the surface of Al spherical powder after
processing for 10 min (Fig.1c). The best dispersion of CNTs can be obtained in the range of
1400-1550 rpm. A thick layer of short CNTs with the length of 200-500 nm were coated on the Al
surface and forming a Al@CNT core-shell structure. Increasing the processing speed to above
1700rpm, some CNTs were starting to be embedded into the Al surface, as the case of 1850 rpm in
Fig.1(d). Using the 1.5 wt% CNT/Al Al@CNT core-shell structured composite powder as thestarting material, we further ball milled the composite powder into nanoflakes to redistribute theCNTs by a newly developed shift-speed ball milling process. The evolution of CNT structure anddispersion with ball milling time were systematically studied by Raman and SEM observation. It
is found that structural integrity and dispersion of CNTs after ball milling are much dependent on
previous dispersion status obtained by the smart powder processing. The structural integrity of
CNTs can be better maintained if CNTs were embedded into Al surface during the smart powder
process. We also compared the mechanical properties of 1.5 wt% CNT/Al composites fabricatedby the present method with that by sole ball milling process. The as fabricated 1.5 wt% CNT/Al
exhibits a tensile strength of 370 MPa and an elongation of 14%, much better than the counterpart
which exhibits a tensile strength of only 330 MPa and a elongation of 10%. The above results
indicate that premixing the spherical Al powder and CNTs by the smart powder processing could
effectively promote the dispersion of CNTs in the final composites and thus improve themechanical properties.

Fig.1 SEM images of raw Al spherical powder (a), raw CNTs (b), 1.5 wt% CNT/Al composite powder
after processing at 1450 rpm for 10 min (c), and 1.5 wt% CNT/Al composite powder after processing at
1850 rpm for 10 min (c).

The experiments to check the feasibility of using nanoflakes as core particles to disperse
CNTs are so far not successful. As shown in Fig.2 (a,b), after mixing the CNTs with Al nanoflakes
by the smart powder processing for 10 min, most CNTs were remained in clusters and become flat
shaped, only a few short CNTs were disaggregated and dispersed on the surface of nanoflakes.
This is may be due to the strong van der Waals interactions between CNTs and large aspect ratio− 235 −

that greatly restricted the disaggregation by shear and compression forces. Only some tube ends of
CNTs were broken from the clusters during the severe collision and dispersed onto Al nanoflakes.
Compared to the unsuccessful dispersion of CNTs, the dispersion of TiO2 nanoparticle on Al
nanoflakes was very successful. As shown in Fig.2 (c,d), the whole surface of Al nanoflakes wascovered by individual nanoparticles. Also compared to CNTs, the dispersion of nanoparticles canbe achieved at relatively low speed.
The above results indicate that using nanoflakes as host particle in smart powder processing
is technically feasible, but the special morphology of CNTs restricts the dispersion of CNTs on
nanoflakes. If CNTs are pre-treated by ultrasonic or dispersed by the assistance of some otherparticles, the uniform dispersion of CNTs on nanoflakes may be also possible. We tried to mix
nanoparticle (eg. TiO2), CNT and Al nanoflakes together, with the hope that CNTs can bedispersed with the assistance of TiO2 nanoparticles. Although slight improvement is achieved, theexperimental result is still not good. More experiments are being carried out to improve thedispersion of CNTs on Al nanoflakes.

Fig.2 SEM images of composite powder processed by smart powder processing, the CNT/Al nanoflake
powder (a, b), and the TiO2 nanopartical/Al nanoflake powder (c,d).

4. Conclusion
To summarize, fabrication of CNT/Al composite by the smart powder processing process isverified and the following conclusions has been obtained.
(1) Using CNTs and spherical Al powder as starting materials, Al@CNTs core-shellstructured composite powder with CNTs uniformly dispersed on the surface of Al
spherical powder can be achieved. By combining the subsequent ball milling process tofurther improve the dispersion of CNTs, CNT/Al bulk composite with uniformly
dispersed CNTs and good mechanical properties can be achieved.
(2) When ultilize Al nanoflake powder as the core particle, the uniform dispersion of CNTs
was not successful. CNT clusters were flattened during collision and only very few
broken ends can be dispersed on the Al nanoflakes. On contrary, the dispersion of TiO2
nanoparticles on Al nanoflakes was successfully obtained.

− 236 −

(3) The comparative study of CNTs and TiO2 nanoparticles on nanoflake powder proved thatultilizing the nanoflake powder as core particle in smart powder processing is technicallyfeasible. Compared to spherical powder, the large surface area of nanoflake powder cangreatly increase the volume fraction of nanoparticles that can be dispersed. Thus itprovides a smart method to fabricate high performance nanocomposites with highcontent of nanoparticles.
(4) The strong van der Waals interactions between CNTs and large aspect ratio of CNTs
greatly restricted the disaggregation by shear and compression forces and thus make itvery difficult to be dispersed onto nanoflakes.
5. Acknowledgement
This work was supported by the Joining and Welding Research Institute, Osaka University (JWRI).
The author was grateful to Prof. Makio Naito and Dr. Akira Kondo for the hospitality and detailarrangement during conducting the cooperation program.
㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧

− 237 −

୍࠙⯡බເ◊✲ㄢ㢟 㸦ᅜ㝿ඹྠ◊✲ဨ Class A㸧ࠚ

Microstructure tailoring and properties control of Porous Cathode for
Lithium-Ion Batteries by gel-tape-casting method
Shanghai Institute of Ceramics
Zhang Jingxian Introduction
Lithium-ion batteries (LIBs) are one of the most popular types of rechargeable batteries for
portable electronics, with a high energy density, small memory effect, and only a slow loss ofcharge when not in use. Beyond consumer electronics, LIBs are also growing in popularity forelectric vehicle and aerospace applications, with a focus on safety, cost, reliability, and recycling.
The control of the electrode microstructure is of great importance for the performance improvementof LIBs. The typical fabrication process of cathode is quite complicated, including powder mixing(together with conductive carbon and binder), the paste preparation, the coating of the cathode paste
onto a current collector, the drying, the pressing, and then the punching to cathode shape. It is quitedifficult for the microstructure control for this multi-step processing. Here, we propose a new andsimple method for the preparation of cathode, gel-tape casting. This method is based on the tapecasting process of concentrated slurries including active material and conductive carbon, followedby the in situ gelation on the current collector. The inter-connected porous structure with wellcontrolled microstructure can be developed through the controlling or processing parameters. This
project aims for a simple and reliable fabrication of porous cathode for LIBs via smart coatingprocess. In addition, the relationship between cathode microstructure and batteries performance
were also studied.
2. Experimental
LiCoO2 powder was bought from jkchemical.com with the purity, particle size and the specificsurface area as 98%, 7.348Pm and 0.646m2/g respectively. The powder was pre-milled using aplenary mill machine to reduce the particle size to 0.59Pm. However, there are still larger particles
inside.
As mentioned in our previous work, aqueous slurries seem to result in the reaction between Al
foil and the slurries. Therefore, a low toxic no aqueous gel-tape casting process was finallyproposed using only ethanol as the solvent. The formulation of the paste was as this: as milled
LiCoO2 powder was used as cathode material. Glycerol trioleate were selected as the dispersant.
Phenolic resin solution was added as the binder and carbon source. Paraffin oil was used as theplasticizer. Slurries were prepared by blending the LiCoO2 powder in glycerol trioleate solutions.
After ball milling for 24h, different content of phenolic resin was added.
Rheological measurements were performed on a MCR 301 (Anton paar, Austria) at 25qC. The
powder and microstructures of as cast LiCoO2 electrode coating were examined by a field emission− 238 −

scanning electron microscope (JSM-6700F, Jeol, Japan).
The burnout of the organic additives play an important role on the performance of green sheets. An
efficient heating cycle was required to prevent the formation of stress and defects in ceramic parts.
In this paper, the thermal treatment schedule for green tapes was used for reference.
3. Results and discussions
In this work, the influence of phenolic resin content on the slurry and the green tape properties was
first studied. Results are shown in Fig.1.

Fig. 1 Influence of phenolic resin content on the rheological properties of slurries (a) and on thegreen tape density and tensile strength

Fig. Influence of plasticizer/inder ration on the slurry properties (a) and on the green tape density
and tensile strength,
In order to study the influence of phenolic resin content on LiCoO2 slurry and the green tapeproperties, slurries with different binder contents ( 4, 8, 12, 16 wt%) were prepared while theplasticizer/binder mass ratio and solid loading were kept constant at 1.0 and 20 vol% respectively.
Form Fig.1a, it is clear that with the increase in the phenolic resin content, the slurry viscosity
increase, while the slurries are all in well dispersed state. This might be due to the high moleculeweight of the resin. From Fig. 1b, it can be found that with the increase in phenolic resin content,
the tensile strength increases gradually, but the green density decreases continuously. The phenolic
resin in the green tapes could distribute homogeneously on ceramic particle surface and hold theceramic particle together. Therefore, higher binder content usually corresponds to the high tensile
strength of the tapes. On the other hand, high amount of the phenolic resin will occupy more space− 239 −

in the slurries, thus after drying, the ceramic particles tend to be separated and lower density will be
resulted.
Fig. 2 shows the rheological properties of LiCoO2 slurries with different plasticizer/binder ratio.
The increase of plasticizer/binder ratio will inevitably lead to a decrease in the slurry viscosity. Thisis due to the low molecule weight of the plasticizer. Similar results can be observed in green density
and tensile strength of the green tape with various plasticizer/binder ratios. The increases in
plDsticizer/binder ratio lead to the increase in strength, while the density showed the decreases trend.
Due to the negative effect on the tape density, usually the plasticizer/binder ratio was selected atlower level to reduce the influence.

Fig.3 Influence of solid content on the rheological properties and the properties of green tapes
The influence of solid content on the rheological properties was shown in Fig.3. An increase in theslurry viscosity can be observed with the increase in solid content. Because with the increase insolid content, the distance between individual particles will be smaller and the interaction will be
more significant correspondingly. In addition, as shown in Fig.3b, with the increase in solid loading,the tensile strength of the green tapes reach a high point at the solid loading of 20vol%, anddecrease slightly thereafter. This might be due to the inhomogeneous structure because
agglomerations can be easily introduced at high solid loading. While with the increase in the solid
loading, the density of the green tapes kept increase.
Based on the studies above, the phenolic resin content, the plasticizer/binder ratio and the solid
loading was set as 12wt%, 1, and 20vol% respectively for the following study.

Fig. (a) The optical photograph of the green tape. (E) SEM image of the green tape
After tape casting and drying, homogeneous green tapes can be obtained. The green tapes were
− 240 −

further gelified at medium temperature of 150-180qC for 12-24h. The optical picture andmicrostructure of the green tapes are shown in Fig.4. A homogeneous microstructure can beobserved.
However, it is quite difficult for the pyrolysis of the green tapes. Typically, the curled or evencracked tapes can be obtained. After optimizing the pyrolysis procedure with extremely low heating
rate and long holding time at every heating cycles, green tapes with crack free structure can beobtained, Fig.8. However, the sheets was quite brittle and it is difficult to assembly the cells for
subsequent testing.

Fig.5 Optical and microstrucrue of LiCoO2 sheets after pyrolysis
After cell assembly with the sheets obtained, results showed that the working voltage is low. This isprobably caused by the high internal resistance. The charge and discharge capacities are notobtained yet. Further work on the composition optimization and the pyrolysis process are still on
the way.
4. Conclusions
In this work, the non-aqueous gel-tape casting of LiCoO2 was studied and the composition was
optimized. Based on the rheological as well as the green sheet properties, the content of thephenolic resin, the plasticizer/binder ratio and the solid loading was set as 12wt%, 1, and 20vol%respectively. The green tapes with homogeneous microstructure can be obtained. However, it isbrittle after the pyrolysis of the binder, thus the performance of the membrane as the cathode is notsatisfying. Further work on the composition design, pyrolysis process as well as the performance
testing of the material is on the way.
Acknowledgement
This work was supported by the Joining and Welding Research Institute, Osaka University (JWRI).
The author was grateful to Prof. Makio Naito and Dr. Takahiro Kozawa for the hospitality and detailarrangement during conducting the cooperation program.

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