኱㜰኱Ꮫ᥋ྜ⛉Ꮫඹྠ฼⏝䞉ඹྠ◊✲ᣐⅬඹྠ◊✲ሗ࿌᭩

2014 ᖺᗘ

㜰኱䛾䝻䝂䝬
䞊䜽኱㜰኱Ꮫ㻌 ᥋ྜ⛉Ꮫ◊✲ᡤJoining and Welding Research Institute
Osaka University

JWRI 䛾䝻䝂䝬䞊䜽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┠ⓗ䛸䛩䜛䚹㻌 䠎䠌䠍䠐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 ྍ㏫ⓗ䛺᥋ྜ䛺䜙䜃䛻⿕そᢏ⾡䛾㛤Ⓨ䠄⥅⥆䠅㻌 㻌 䠄௦⾲⏦ㄳ⪅䠖᱒ཎ ⪽⚽ ෸ᩍᤵ䠅䈄␗✀ᮦᩱ᥋ྜ䛻䛚䛡䜛䝬䝹䝏䝇䜿䞊䝹⏺㠃䛾⛉Ꮫ䛸≀ᛶ䠄⥅⥆䠅㻌 㻌 䠄௦⾲⏦ㄳ⪅䠖㏆⸨ ຾⩏ ᩍᤵ䠅䈄 ᚤ⢏Ꮚ䜢฼⏝䛧䛯⏺㠃᥋ྜไᚚ䛻ᇶ䛵䛟䝇䝬䞊䝖᥋ྜᢏ⾡䛾㛤ᣅ䠄᪂つ䠋䠢䠯ᆺ䠅㻌 㻌 䠄௦⾲⏦ㄳ⪅䠖㜿㒊 ᾈஓ ෸ᩍᤵ䠅䠎䠌䠍䠐ᖺᗘ䛻ᐇ᪋䛧䛯୍⯡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

䠎䠏䠏ே

䠎䠕ே*

*୍⯡බເ◊✲ㄢ㢟䛸䛾㔜」⏦ㄳㄢ㢟䜢ྵ䜐䚹䛺䛚䚸䠎䠌䠍䠑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 ␗✀ᮦᩱ᥋ྜ䛻䛚䛡䜛䝬䝹䝏䝇䜿䞊䝹⏺㠃䛾⛉Ꮫ䛸≀ᛶ䠄⥅⥆䠅㻌 㻌 䠄௦⾲⏦ㄳ⪅䠖㏆⸨ ຾⩏ ᩍᤵ䠅䈄 ᚤ⢏Ꮚ䜢฼⏝䛧䛯⏺㠃᥋ྜไᚚ䛻ᇶ䛵䛟䝇䝬䞊䝖᥋ྜᢏ⾡䛾㛤ᣅ䠄⥅⥆䠅㻌 㻌 䠄௦⾲⏦ㄳ⪅䠖ෆ⸨ ∾⏨ ᩍᤵ䠅䈄 ␗✀ᮦᩱ䜢䜲䞁䜽⣲ᮦ䛸䛩䜛ከⰍๅⓗ䛺 3D 䝥䝸䞁䝍䝥䝻䝉䝇䛾ᵓ⠏䠄᪂つ䠅㻌 㻌 䠄௦⾲⏦ㄳ⪅䠖᱒ཎ ⪽⚽෸ᩍᤵ䠅ඹྠ◊✲ 㢟┠୍ぴ䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆ඛᑟⓗ㔜Ⅼㄢ㢟䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆ྍ㏫ⓗ䛺᥋ྜ䛺䜙䜃䛻⿕そᢏ⾡䛾㛤Ⓨ
ᩍᤵ

ᑠᕝ䚷࿴ὒ

䞉䞉䞉 㻝

㻞䠊 ᾮ┦ྜᡂἲ䜢฼⏝䛧䛯ⓑ㔠䝘䝜⢏ ᮾி⌮⛉኱ᏛᏊ㻛䜹䞊䝪䞁䝘䝜䝏䝳䞊䝤㻛䜹䞊䝪䞁䝨䞊䝟䞊」ྜయ䛾ྜᡂ

෸ᩍᤵ

⏣୰䚷ඃᐇ

䞉䞉䞉 㻟

㻟䠊 ᾏὒ⎔ቃ䛷䛾⪏ஂᛶྥୖ䜢┠ᣦ䛧䛯᪂つ⁐ᑕ䝥䝻䝉䝇䛾☜❧

ຓᩍ

୰㔝䚷ᩔ

䞉䞉䞉 㻡

㻝䠊 䝇䝷䝸䞊≧䝘䝜䝫䝸䝬䞊䛚䜘䜃䝉䝷䝭䝑䜽䝇⢏Ꮚ䜢⏝䛔䛯ప䜶䝛䝹䜼䞊ᆺ䝁䞊䝔䜱䞁䜾䝥䝻䝉䝇䛾㛤Ⓨᮾ໭኱Ꮫ⌰⌫኱ᏛᕤᏛ㒊㻠䠊 㼀㼕㻻㻞㻌䝘䝜䜽䝸䝇䝍䝹䝁䞊䝔䜱䞁䜾䛚䜘䜃㼀㼕㻻㻞㻌䝘䝜䜽䝸䝇䝍䝹㞟✚ᆺ⢏Ꮚ䛾䝝䝻䝀䞁㻛㓟䝣䝸䞊ྜᡂ⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲
ᡤ
ဨ

ቑ⏣䚷ె୔

䞉䞉䞉 㻣

㻡䠊 䝬䜲䜽䝻ග㐀ᙧἲ䜢⏝䛔䛯඲ᅛయᆺ䝸䝏䜴䝮㟁ụ䛾๰〇㤳㒔኱ᏛᮾிᲷ᪉䚷⿱୍䞉䞉䞉 㻝㻝

ᩍᤵ
◊✲ဨ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

ᕝᓮ䚷ு
Ⱳ䚷Ᏹ㥅
஬༑ᔒ䚷㖟Ἑ࿘䚷೧೧ᒣཱྀ䚷㐩ஓ䞉䞉䞉 㻝㻟

ᩍᤵ
෸ᩍᤵ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

ᯇᑿ䚷┤ே
㒊ᐙ䚷ᙲ
ᖹ㔝䚷⩧኱
ⲡቨ䚷ྐ

䞉䞉䞉 㻝㻡

ຓᩍ␗✀ᮦᩱ᥋ྜ䛻䛚䛡䜛䝬䝹䝏䝇䜿䞊䝹⏺㠃䛾⛉Ꮫ䛸≀ᛶ㻝䠊 䜾䝷䝣䜵䞁㻛㻭㼘㻞㻻㻟㻌䝘䝜」ྜᮦᩱ䛾స〇䛚䜘䜃ᶵᲔⓗ≉ᛶ䛾ホ౯ᮾ໭኱Ꮫ㻞䠊 ␗ᮦ⏺㠃䛾ᚤ⣽ᵓ㐀䛾ほᐹ䚸ホ౯ රᗜ┴❧኱Ꮫཬ䜃ไᚚ㻌㌾䠴⥺↷ᑕ䛻䜘䜚స〇䛧䛯㻿㼕䝘䝜⤖ᬗ⢏㻔㻱㼞㻕㻛㻿㼕㻻㼤㻛䜺䝷䝇䛻䛚䛡䜛ྛ᥋ྜ⏺㠃䛸⤖ᬗᛶ㻟䠊 㻿㻼㻿ᡂᙧ䛧䛯㻭㼘㻛䝎䜲䝲䝰䞁䝗」ྜ
ᮦᩱ䛾⇕ఏᑟ⋡䛻ཬ䜌䛩䝎䜲䝲䝰䞁䝗䛾䝞䜲䝰䞊䝎䝹䛺⢏ᗘศᕸ䛾ᙳ㡪኱㜰ᕷ❧ᕤᴗ◊✲ ᮦᩱ䝥䝻
ᡤ
䝉䝅䞁䜾
◊✲ᐊ㛗
◊✲୺ᖿ

Ỉෆ䚷₩

䞉䞉䞉 㻝㻣㻠䠊 䜹䞊䝪䞁䝘䝜䝏䝳䞊䝤䛾༢ศᩓ໬䝥䝻䝉䝇䛻䜘䜛㔠ᒓᇶ」ྜᮦᩱ䛾๰〇䛸≉ᛶゎᯒ༢ศᩓ㻯㻺㼀㻌䜢฼⏝䛧䛯㔠ᒓᮦᩱ䛾㧗ᶵ⬟Ⓨ⌧ᶵᵓ䛾ゎ᫂䠉ᑠᚄ㻯㻺㼀㻌䜢฼⏝䛧䛯䝏䝍䞁⾲㠃䛾䝘䝜䝇䜿䞊䝹ᵓ㐀䛜⣽⬊௜╔ቑṪ䛻ཬ䜌䛩ᙳ㡪䠉໭ᾏ㐨኱Ꮫ⑓㝔ಖ ㅮᖌᏑ⣔ṑ⛉໭ᾏ㐨኱Ꮫ኱Ꮫ㝔 ኱Ꮫ㝔⏕
ṑᏛ◊✲⛉

ᐑ἞䚷⿱ྐ

䞉䞉䞉 㻞㻞

䠘Ꮫෆඹྠ◊✲ဨ䠚㻝䠊 ኱Ꮫ㝔ᕤᏛ◊✲⛉䚷䚷ㅮᖌ䚷Ᏻ⏣䚷Ύ࿴−i−す⏣䚷⤮฼㤶

ᚤ⢏Ꮚ䜢฼⏝䛧䛯⏺㠃᥋ྜไᚚ䛻ᇶ䛵䛟䝇䝬䞊䝖᥋ྜᢏ⾡䛾㛤ᣅ㻝䠊 㻿㻻㻲㻯㻌ᮦᩱᚤ⢏Ꮚ䛾ྜᡂ䛸≉ᛶホ౯኱㜰ᗓ❧኱Ꮫ

ᩍᤵ
ຓᩍ
኱Ꮫ㝔⏕

㊊❧䚷ඖ᫂
ᮌୗ䚷༟ஓ
෇Ꮚ䚷ᘯ႐

䞉䞉䞉 㻞㻡㻞䠊 䝃䜲䝈䞉ᙧែไᚚ༢ศᩓ㓟໬㕲䝘䝜⢏Ꮚ䛾⾲㠃ྍ㏫᥋ྜ䛻䜘䜛᪂つ☢ᛶ⢓ᛶὶయ䛾㛤Ⓨ

ᮾ໭኱Ꮫ

෸ᩍᤵ

⽣Ụ䚷⃈ᚿ

䞉䞉䞉 㻞㻣㻟䠊 ⾲㠃ಟ㣭䝘䝜⢏Ꮚ䛾ศᩓ䞉྾╔≉ᛶ䛸䝁䝻䜲䝗䝥䝻䞊䝤㻭㻲㻹ἲ䛻䜘䜛ゎᯒᮾி㎰ᕤ኱Ꮫᩍᤵ⚄㇂䚷⚽༤䞉䞉䞉 㻞㻥㻠䠊 Ỉ୰㧗ศᩓ㻳㼐㻜㻚㻞㻯㼑㻜㻚㻤㻻㻝㻚㻥䝘䝜⤖ᬗ䛾ྜᡂ䛸䛭䛾ᵓ㐀ホ౯

⩌㤿኱Ꮫ

ຓᩍ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

బ⸨䚷࿴ዲ
ᇼཱྀ䚷࿴ဢ
᪂஭䚷ឡᮍ

䞉䞉䞉 㻟㻝㻡䠊 ᚤ⢏Ꮚ䜢฼⏝䛧䛯⏺㠃᥋ྜไᚚ䛻ᇶ䛵䛟䝇䝬䞊䝖᥋ྜᢏ⾡䛾㛤ᣅ䠖㻹㼓㻲㼑㻺㼎㻻㻡䛾཯ᛂ↝⤖䛸ᚤ⣽ᵓ㐀

⟃Ἴ኱Ꮫ

෸ᩍᤵ

㕥ᮌ䚷⩏࿴

䞉䞉䞉 㻟㻟㻢䠊 䜲䜸䞁ఏᑟᛶ㧗ศᏊ䜰䜽䝏䝳䜶䞊䝍 ᐩᒣ኱Ꮫ኱Ꮫ㝔䛻䜘䜛⬟ືᆺ䜹䝔䞊䝔䝹䛾㛤Ⓨ

ᩍᤵ

᳃䚷ⱥ฼

䞉䞉䞉 㻟㻡

㻣䠊 Ⅳ㓟䜹䝹䝅䜴䝮䝘䝜⢏Ꮚ䛾⮬ᕫ⤌⧊ⓗ䛺㓄ྥ⌧㇟䛸ᶵ⬟᥈⣴

෸ᩍᤵ

ᒣ୰䚷┿ஓ

䞉䞉䞉 㻟㻣

ᐊ⹒ᕤᴗ኱Ꮫ

− ii −

䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆䠆 ୍ ⯡ බ ເ ◊ ✲ ㄢ 㢟 䠆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

ຍᕤ䝅䝇䝔䝮㒊㛛
䠘䜶䝛䝹䜼䞊ไᚚᏛศ㔝䠚㻝䠊 ⁐᥋䜰䞊䜽⌧㇟䠈⁐⼥ụ⌧㇟䛚䜘䜃⁐᥋㍺㏦⌧㇟ゎᯒ䠄஺ὶ㼀㻵㻳⁐᥋䛻䛚䛡䜛䜰䞊䜽䛾ᣲືゎ᫂䛸䛭䛾ไᚚ䛻㛵䛩䜛ᇶ♏◊
✲䠅

ᐑᓮ኱Ꮫ

ຓᩍ

ᮌஅୗ䚷ᗈᖾ䞉䞉䞉 㻟㻥㻞䠊 ⇕䝥䝷䝈䝬ᮦᩱ䝥䝻䝉䝇䛾ᩘ್ィ⟬䝅䝭䝳䝺䞊䝅䝵䞁ᮦᩱ䛸䛾ቃ⏺䛻㔜┦ᵓ㐀䜢᭷䛩䜛㧗㏿䜺䝇྿௜䛡䜰䞊䜽䝥䝷䝈䝬䛾㟁☢⇕ὶయゎᯒ

㔠ἑ኱Ꮫ

ᩍᤵ

⏣୰䚷ᗣつ

䞉䞉䞉 㻠㻝㻟䠊 䝺䞊䝄䜢⏝䛔䛯㻭㼞㻙㻳㻹㻭⁐᥋䛾Ᏻᐃ໬≀㉁䞉ᮦᩱ◊✲ᶵᵓ䝇䝔䞊䝅䝵 ୰ᮧ㻌↷⨾䞁㛗䞉䞉䞉 㻠㻟㻠䠊 㠀ᅽ⦰ᛶ㻿㻼㻴㻌ἲ䛻䜘䜛㼀㻵㻳㻌⁐᥋䝅䝭䝳䝺䞊䝅䝵䞁

ᮾ໭኱Ꮫ

ᩍᤵ
኱Ꮫ㝔⏕

⚟す䚷♸
ఀ⸨䚷┿⃈

䞉䞉䞉 㻠㻡㻡䠊 䜰䝹䝭䝙䜴䝮ᯈୖ䛷䛾஺ὶ㼀㻵㻳⁐᥋ ᐑᓮ኱Ꮫ䛻䛚䛡䜛㝜ᴟⅬᣲື䛾ほᐹ

ᢏ⾡⫋ဨ

⸨୸䚷ཌᚿ

䞉䞉䞉 㻠㻣㻢䠊 ⁐᥋䜰䞊䜽⌧㇟䠈⁐⼥ụ⌧㇟䛚䜘 䝃䝺䝆䜸ᕤᴗ㧗➼ᑓ㛛Ꮫᰯ䜃⁐᥋㍺㏦⌧㇟ゎᯒ⁐᥋䜰䞊䜽䛾䝅䞊䝹䝗䜺䝇⤌ᡂ䛸㝜ᴟⅬᣲື䛾ゎ᫂ཬ䜃ᣲືไᚚ䛾䛯䜑䛾ᇶ♏ⓗ◊✲෸ᩍᤵᡣ㔝䚷ಇኵ㻌䞉䞉䞉 㻠㻥䞉䞉䞉 㻡㻝㻣䠊 ⁐᥋䜰䞊䜽⌧㇟䠈⁐⼥ụ⌧㇟䛚䜘䜃⁐᥋㍺㏦⌧㇟ゎᯒ
⁐⼥ụ☢Ẽไᚚ䜰䞊䜽⁐᥋䛾䜰䞊䜽⌧㇟䛸⁐⼥ụ䛾ὶືゎᯒ

⌰⌫኱Ꮫ

෸ᩍᤵ

ᯇ⏣䚷୍᪼㻌㻤䠊 ⁐᥋䜰䞊䜽⌧㇟䠈⁐⼥ụ⌧㇟䛚䜘䜃⁐᥋㍺㏦⌧㇟ゎᯒ䠄஺ὶ㼀㻵㻳⁐᥋䛻䛚䛡䜛䜰䞊䜽䛾ᣲືゎ᫂䛸䛭䛾ไᚚ䛻㛵䛩䜛ᇶ♏◊
✲䠅

ᐑᓮ኱Ꮫ

ᢏ⾡⫋ဨ

Ᏻ஭䚷㈼ኴ㑻㻌 䞉䞉䞉 㻡㻟㻥䠊 ⁐᥋䜰䞊䜽⌧㇟䠈⁐⼥ụ⌧㇟䛚䜘䜃⁐᥋㍺㏦⌧㇟ゎᯒ㻙㼀㻵㻳⁐᥋䛻䛚䛡䜛䜰䞊䜽⌧㇟ෆ䛷䛾⁐⼥ụ⌧㇟ゎᯒ䛻㛵䛩䜛◊✲㻌䇲

ᐑᓮ኱Ꮫ

෸ᩍᤵ

‫‮‬ᆅ䚷ᩄྐ䞉䞉䞉 㻡㻡㻝㻜䠊 ཯ᛂᛶ⇕䝥䝷䝈䝬䛾㧗⢭ᗘᩘ್䝅䝭䝳䝺䞊䝅䝵䞁

஑ᕞ኱Ꮫ

ᩍᤵ
ຓᩍ
኱Ꮫ㝔⏕

Ώ㑓䚷㝯⾜
⏣୰䚷Ꮫ
༓⥥䚷ၨኴ

䞉䞉䞉 㻡㻣

− iii −

㻝㻝䠊 㧗㏿ᗘ䝡䝕䜸䜹䝯䝷䜢⏝䛔䛯䜰䞊䜽ᨺ㟁㟁ᴟ䛾ගᏛⓗィ ᡭἲ䛾㛤
Ⓨ

஑ᕞ኱Ꮫ

ᩍᤵ
ຓᩍ
኱Ꮫ㝔⏕

Ώ㎶䚷㝯⾜
⏣୰䚷Ꮫ
ᶫワ䚷ኴ㑻

䞉䞉䞉 㻡㻥

䠘䜶䝛䝹䜼䞊ኚ᥮ᶵᵓᏛศ㔝䠚䠘Ꮫෆ䠚኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ

ఀ⸨䚷๛ோ

኱ศ኱Ꮫ

ᕷ౗䚷㱟኱

䞉䞉䞉 㻢㻝㻞䠊 㔜䛽ᦶ᧿ᨩᢾ᥋ྜ䛻䛚䛡䜛䜰䝹䝭 ᐩᒣ┴ᕤᴗᢏ⾡䝉 ୺௵◊✲ဨᰠෆ㻌ⱱᶞ䝙䜴䝮ྜ㔠䛸䝬䜾䝛䝅䜴䝮ྜ㔠䛾␗ 䞁䝍䞊ᮦ᥋ྜ䛻ཬ䜌䛩᥋ྜ᮲௳䛾ᙳ㡪䞉䞉䞉 㻢㻟㻟䠊 㻭㻢㻜㻢㻟㻛㻿㼁㻿㻟㻜㻠ⷧ⫗෇⟶ᦶ᧿ᅽ᥋⥅ᡭ䛾ᛶ⬟ゎ᫂䛻㛵䛩䜛᳨ウᮌᮧ㻌┿᫭䞉䞉䞉 㻢㻡㻠䠊 䝺䞊䝄䝤䝺䞊䝆䞁䜾䛻䜘䜛␗✀ᮦᩱ 㮵ඣᓥ┴ᕤᴗᢏ⾡ ୺௵◊✲᥋ྜ䛻㛵䛩䜛◊✲
䝉䞁䝍䞊
ဨ

℩▱䚷ၨஂ

䞉䞉䞉 㻢㻣㻡䠊 Ỉ୰⾪ᧁἼ䜢⏝䛔䛯㧗ᶵ⬟ⷧᯈᮦ ⇃ᮏ኱Ꮫᩱ䛾᥋ྜ䛻䛚䛡䜛᥋ྜ䝥䝻䝉䝇䛾 ᓫᇛ኱Ꮫ
ி㒔኱Ꮫ
ゎ᫂

ᩍᤵ
෸ᩍᤵ
෸ᩍᤵ

እᮏ䚷࿴ᖾ
᳃䚷᫛ᑑ
➟⏣䚷❳ኴ

䞉䞉䞉 㻢㻥㻝䠊 ⏺㠃䝘䝜䝽䜲䝲ᙧᡂ䛻䜘䜛୰㛫ᒙ䝺 ᗈᓥ኱Ꮫ䝇ᶵ⬟ᛶⷧ⭷䛾ᡂ⭷

෸ᩍᤵ

ຍ⸨ᫀᙪ

䞉䞉䞉 㻣㻝㻞䠊 ᚠ⎔ᆺ♫఍ᙧᡂ䛸⎔ቃㄪ࿴ᢏ⾡䝡 ᮾிᕤᴗ኱Ꮫ
䝆䝵䞁䛻㛵䛩䜛◊✲䚷லᮎ䛺䜶䝛䝹䜼䞊※䜢฼⏝䛧䛯䜶䝛䝹䜼䞊䝝䞊䝧䝇䝔䜱䞁䜾ᩍᤵ㧗ᶫ䚷㑥ኵ䞉䞉䞉 㻣㻠㻟䠊 ᅛ┦᥋ྜ䝥䝻䝉䝇䛾⇕ゎᯒ䛸᭱㐺 ⇃ᮏ኱Ꮫ໬䛾䛯䜑䛾⡆᫆ゎᯒ䝒䞊䝹䛾㛤Ⓨ

ᩍᤵ

ᐩᮧ䚷ᑑኵ

䞉䞉䞉 㻣㻢㻝䠊 ኱Ẽᅽ䛛䜙㉸⮫⏺ὶయ㞺ᅖẼ䜎䛷䛻䛚䛡䜛᪂つ䝥䝷䝈䝬※㛤Ⓨ䛸䛭䛾ᛂ⏝䠘䜶䝛䝹䜼䞊䝥䝻䝉䝇Ꮫศ㔝䠚㻝䠊 䝥䝷䝈䝬䞉䝺䞊䝄䞉䜲䜸䞁䝡䞊䝮䛻䜘䜛᪂⾲㠃ᨵ㉁ᶵ⬟䛾๰ᡂ኱Ẽᅽ䝥䝷䝈䝬䛻䜘䜛❅໬ฎ⌮ἲ䛾㛤Ⓨරᗜ┴❧኱Ꮫ

ຓᩍ෸ᩍᤵ䠘⎔ቃㄪ࿴䝥䝻䝉䝇Ꮫศ㔝䠚㻠䠊 㻿㼕ᇶᯈୖ䜾䝷䞁䝗㻯㻼㼃⥺㊰䛾䝡䜰䝩䞊䝹䜢⏝䛔䛯㼀㻴㼦ᖏ㧗ḟ䝰䞊䝗
ᢚᅽᢏ⾡

㮵ඣᓥ኱Ꮫ

ᩍᤵ

すᕝ䚷೺஧㑻䞉䞉䞉 㻣㻤㻡䠊 ཮䝻䞊䝹䜻䝱䝇䝍䞊䛻䜘䜛䜽䝷䝑䝗ᮦ䛾స〇䛻㛵䛩䜛◊✲኱㜰ᕤᴗ኱Ꮫᩍᤵ⩚㈡䚷ಇ㞝䞉䞉䞉 㻤㻜

− iv −㻢䠊 㼜ᆺ❅໬䜺䝸䜴䝮䜈䛾㠀ᩚὶᛶప᢬ ᪥ᮏ኱Ꮫᢠ㟁ᴟᙧᡂ䝥䝻䝉䝇䛾㛤Ⓨ

෸ᩍᤵ

๓⏣䚷ᑗඞ

䞉䞉䞉 㻤㻞㻣䠊 ㉸◳ྜ㔠⢊ᮎ䜢⏝䛔䛯䜰䝹䝭䝙䜴䝮ྜ㔠ᯈୖ䜈䛾⪏ᦶ⪖ᛶᒙ䛾㛤Ⓨ䠄㍍㔠ᒓᮦᩱ䛾䜽䝷䝑䝗ᮦᙧᡂ䛻㛵䛩䜛◊✲䠅෸ᩍᤵᒣཱྀ䚷ᐩᏊ䞉䞉䞉 㻤㻠

஑ᕞᕤᴗ኱Ꮫ

᥋ྜᶵᵓ㒊㛛
䠘⁐᥋ᶵᵓᏛศ㔝䠚㻝䠊 ␗ᮦ⏺㠃䛾ᚤ⣽ᵓ㐀䛾ほᐹ䚸ホ౯ ≀㉁䞉ᮦᩱ◊✲ᶵཬ䜃ไᚚᵓ㔠ᒓ㻛㓟໬≀᥋ྜ⏺㠃䛾䝘䝜䞊䜸䞊䝎䞊䝺䝧䝹䛾ᵓ㐀䛾ゎᯒ㻞䠊 㻿㼁㻿㻟㻝㻢㻸⁐᥋㔠ᒓ䛾㧗 ⣧Ỉ୰䛻䛚䛡䜛ᛂຊ⭉㣗๭䜜ᙧែ⤫ᣓ䝬⏕⏣┠䚷ಇ⚽
䝛䞊䝆䝱䞊䜶䞁䝆䝙䜰 ኱஭䚷ᬡᙪⓎ㟁タഛᢏ⾡᳨ᰝ ୺௵◊✲ すᕝ䚷⪽༠఍ဨ㻟䠊 ␗┦⏺㠃䜢᭷䛩䜛」ྜ⤌⧊㗰䛾⤌ ᓥ᰿኱Ꮫ⧊ゎᯒ䠆㻠䠊 ␗ᮦ⏺㠃䛾ᚤ⣽ᵓ㐀䛾ほᐹ䚸ホ౯ රᗜ┴❧኱Ꮫཬ䜃ไᚚ㌾䠴⥺↷ᑕ䛻䜘䜚స〇䛧䛯㻿㼕䝘䝜⤖ᬗ⢏㻔㻱㼞㻕㻛㻿㼕㻻㼤㻛䜺䝷䝇䛻䛚䛡䜛ྛ᥋ྜ⏺㠃䛸⤖ᬗᛶ䞉䞉䞉 㻤㻢䞉䞉䞉 㻤㻤ຓᩍᯘ䚷Ὀ㍜䞉䞉䞉 㻥㻜

ᩍᤵ
෸ᩍᤵ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

ᯇᑿ䚷┤ே
㒊ᐙ䚷ᙲ
ᖹ㔝䚷⩧኱
ⲡቨ䚷ྐ

䞉䞉䞉 䠄㻝㻡䠅䠘Ꮫෆ䠚㻝䠊 㦵᥋ྜ⤌⧊䛺䜙䜃䛻㦵㻛䜲䞁䝥䝷䞁䝖⏺㠃䛾ほᐹ䛸ゎᯒ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵ
ㅮᖌ

୰㔝䚷㈗⏤
▼ᮏ䚷༟ஓ

㻞䠊 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
ኳᮏ䚷㝯ྐ
Ლᮧ䚷ᜨᏊ
෠Ọ䚷ᖾᖹ

㻟䠊 ⏺㠃䝘䝜ᵓ㐀ゎᯒ䛻䜘䜛␗✀㔠ᒓᮦᩱ᥋ྜ㒊䛾㧗ಙ㢗໬⤌⧊ไᚚ኱Ꮫ㝔ᕤᏛ◊✲⛉ ຓᩍᑠ᳚䚷ᬛ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
ᑿᓮ䚷ோᚿ

䞉䞉䞉 㻥㻞㻞䠊 䝺䞊䝄↷ᑕ䝟䝇䛾㔜䛽ྜ䜟䛫䛻䜘䜛ᶞ⬡䠉㔠ᒓ┤᥋᥋ྜ䛾⥅ᡭᙉᗘ䛻㛵䛩䜛ᇶ♏ⓗ◊✲໭ᾏ㐨❧⥲ྜ◊✲ ◊✲୺௵ Ḉᗞ䚷ὒᖹᶵᵓ䞉䞉䞉 㻥㻠㻟䠊 ྛ✀㖡ྜ㔠⁐᥋㒊䛾ᢠ⳦≉ᛶ኱㜰ᕷ❧኱Ꮫ䞉䞉䞉 㻥㻢

䠘䝺䞊䝄᥋ྜᶵᵓᏛศ㔝䠚

−v−

෸ᩍᤵ
ຓᩍ

ᩍᤵ

బ⸨䚷჆ὒ

㻠䠊 ᶞ⬡㔠ᒓ䝺䞊䝄┤᥋᥋ྜ㜿༡ᕤᴗ㧗➼ᑓ㛛 ෸ᩍᤵ
Ꮫᰯ

すᮏ䚷ᾈྖ

䞉䞉䞉 㻝㻜㻜㻡䠊 䝺䞊䝄ຍᕤ䛻䛚䛡䜛䝡䞊䝮䛸ᮦᩱ䛾┦஫స⏝୪䜃䛻䝺䞊䝄ຍᕤ⌧㇟䛾ゎ᫂䇷㻌䝺䞊䝄䞉䜰䞊䜽䝝䜲䝤䝸䝑䝗⁐᥋≉ᛶ㻌䇷㏆␥㧗䜶䝛䝹䜼䞊
ຍᕤᢏ⾡◊✲ᡤ㔝⏣䚷ಟ䞉䞉䞉 㻝㻜㻞㻢䠊 ྛ✀ᮦᩱ䛾䝺䞊䝄᥋ྜᛶ䛸䛭䛾᥋ྜ㒊䛾≉ᛶホ౯䡚䚷䝺䞊䝄⁐᥋⥅ᡭᙧ≧䛸ᘬᙇ䛫䜣᩿ᙉᗘ䛾㛵ಀ䛻䛴䛔䛶䚷䡚୕㔜┴ᕤᴗ◊✲ᡤ ୺ᖿ◊✲ ᯘ䚷୍ဢဨ୺ᖿ◊✲ ቑ஭䚷Ꮥᐇဨḟ㛗䞉䞉䞉 㻝㻜㻠䠘Ꮫෆ䠚㻝䠊 㕲㗰ᮦᩱ䛾䝺䞊䝄䞉䜰䞊䜽䝝䜲䝤䝸䝑䝗⁐᥋኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵ
ᘅ℩䚷᫂ኵ
෸ᩍᤵ
బ㔝䚷ᬛ୍
኱Ꮫ㝔⏕ ➉ᓮ䚷㤾㻞䠊 㧗䜶䝛䝹䜼䞊ᐦᗘ䝡䞊䝮䜢⏝䛔䛯㧗ᶵ⬟ᮦᩱ㛤Ⓨ䛻㛵䛩䜛◊✲኱Ꮫ㝔ᕤᏛ◊✲⛉ ᣍ䜈䛔ᩍᤵᑠᯘ䚷᫂㻟䠊 䜰䝹䝭䝙䜴䝮ྜ㔠䝺䞊䝄⁐᥋㒊䛻䛚䛡䜛䝫䝻䝅䝔䜱䛾Ⓨ⏕ᣲື䛻㛵䛩䜛ᩘ್ゎᯒ䛸䛭䛾ሙほᐹ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ᳃䚷⿱❶㻌㻠䠊 䝅䞁䜾䝹䝰䞊䝗䝣䜯䜲䝞䞊䝺䞊䝄䛻 ኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ ᯇᒣ䚷ἲኸ
䜘䜛㧗㏿⁐᥋᫬䛾๭䜜ឤཷᛶホ౯䠘」ྜ໬ᶵᵓᏛศ㔝䠚㻝䠊 ᙉረᛶຍᕤ䜢᪋䛧䛯㻭㼆㻟㻝㻮㻌ỗ⏝䝬 㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ ᩍᤵ䜾䝛䝅䜴䝮⢊ᮎྜ㔠ᢲฟᮦ䛾ຊᏛ≉ᛶ䛸㞟ྜ⤌⧊ゎᯒ㙊ᅵ㻌㔜ᬕ䞉䞉䞉 㻝㻜㻢䠆㻞䠊 䜾䝷䝣䜵䞁㻛㻭㼘㻞㻻㻟㻌䝘䝜」ྜᮦᩱ䛾స〇䛚䜘䜃ᶵᲔⓗ≉ᛶ䛾ホ౯

ᮾ໭኱Ꮫ

ᩍᤵ
◊✲ဨ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

ᕝᓮ䚷ு
Ⱳ䚷Ᏹ㥅
஬༑ᔒ䚷㖟Ἑ࿘䚷೧೧ᒣཱྀ䚷㐩ஓ䞉䞉䞉 㻔㻝㻟㻕㻟䠊 䝴䝡䜻䝍䝇ඖ⣲䛻䜘䛳䛶ᙉ໬䛥䜜䛯⣧䝏䝍䞁䛾స〇䛸䛭䛾≉ᛶ

᪥ᮏ኱Ꮫ

ᩍᤵ

ஂಖ⏣㻌ṇᗈ䞉䞉䞉 㻝㻜㻤㻠䠊 䝞䜲䜸䝬䝇䜹䝇䜿䞊䝗䜢฼⏝䛧䛯䜰䝰䝹䝣䜯䝇䝅䝸䜹๰〇䝥䝻䝉䝇䠉䜰䝰䝹䝣䜯䝇䝅䝸䜹䛾䝁䞁䜽䝸䞊䝖ᮦᩱ䛸䛧䛶䛾᭷ຠά⏝䠉ᯇỤᕤᴗ㧗➼ᑓ㛛 ᩍᤵ
Ꮫᰯ

㧗⏣䚷㱟୍

䞉䞉䞉 㻝㻝㻜㻡䠊 㼀㼕㻌⢏Ꮚศᩓ㻹㼓㻙㻭㼘㻌ྜ㔠䛾⭉㣗⌧㇟䛻ཬ䜌䛩⏺㠃཯ᛂᒙ䛾ᙳ㡪

໭ᾏ㐨኱Ꮫ

ྂ᭶ᩥᚿ

䞉䞉䞉 㻝㻝㻞

኱㜰ᕷ❧ᕤᴗ◊✲ ◊✲୺ᖿ Ỉෆ㻌₩ᡤ䞉䞉䞉 䠄㻝㻣䠅䠆㻢䠊 㻿㻼㻿ᡂᙧ䛧䛯㻭㼘㻛䝎䜲䝲䝰䞁䝗」ྜ
ᮦᩱ䛾⇕ఏᑟ⋡䛻ཬ䜌䛩䝎䜲䝲䝰䞁䝗䛾䝞䜲䝰䞊䝎䝹䛺⢏ᗘศᕸ䛾ᙳ㡪

− vi −

ᩍᤵ㻣䠊 ᙉረᛶຍᕤἲ䛻䜘䜚స〇䛧䛯㉸ᚤ⣽⤖ᬗ⢏䜢᭷䛩䜛㻹㼓⢊ᮎྜ㔠䛾⑂ປ◚ቯᶵᵓ䛾ゎ᫂㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ ෸ᩍᤵᐑୗ㻌ᖾ㞝䞉䞉䞉 㻝㻝㻠䠆㻤䠊 䜹䞊䝪䞁䝘䝜䝏䝳䞊䝤䛾༢ศᩓ໬䝥䝻䝉䝇䛻䜘䜛㔠ᒓᇶ」ྜᮦᩱ䛾๰〇䛸≉ᛶゎᯒ༢ศᩓ㻯㻺㼀㻌䜢฼⏝䛧䛯㔠ᒓᮦᩱ䛾㧗ᶵ⬟Ⓨ⌧ᶵᵓ䛾ゎ᫂䠉ᑠᚄ㻯㻺㼀㻌䜢฼⏝䛧䛯䝏䝍䞁⾲㠃䛾䝘䝜䝇䜿䞊䝹ᵓ㐀䛜⣽⬊௜╔ቑṪ䛻ཬ䜌䛩ᙳ㡪䠉໭ᾏ㐨኱Ꮫ⑓㝔ಖ ㅮᖌᏑ⣔ṑ⛉໭ᾏ㐨኱Ꮫ኱Ꮫ㝔 ኱Ꮫ㝔⏕
ṑᏛ◊✲⛉

ᐑ἞䚷⿱ྐ

䞉䞉䞉 䠄㻞㻞䠅

す⏣䚷⤮฼㤶䠘Ꮫෆ䠚㻝䠊 ⇞↝ሙ䛻䛚䛡䜛䜒䜏Ẇ䝅䝸䜹䛾⌫≧ ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵ໬䛻㛵䛩䜛◊✲㉥ᯇ䚷ྐග㻞䠊 ᶵ⬟ᛶከᏍయ䛾㛤Ⓨ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵᏱᒣ䚷ᾈ㻟䠊 ㉸㧗⢭⣽⾲㠃ᛶ≧ศᯒ䛻䜘䜛ྂ௦㟷㖡㙾䛾ᦶ⁛⑞⏕ᡂ㐣⛬䛾ゎ᫂኱Ꮫ㝔ᩥᏛ◊✲⛉ ᩍᤵ⚟Ọ䚷ఙဢ㻠䠊 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㻌㻡䠊 ᪥ᮏཎጞྂ௦㔠ᒓჾ䛾ᮦ㉁䚸〇స ኱Ꮫ㝔ᕤᏛ◊✲⛉ ຓᩍᢏ⾡䛻㛵䛩䜛ᩥ⌮Ꮫ㝿◊✲୰ஂಖ䚷㎮ኵ㻢䠊 ⇞↝ሙ䛻䛚䛡䜛䜒䜏Ẇ䝅䝸䜹䛾⌫≧ ኱Ꮫ㝔ᕤᏛ◊✲⛉ ຓᩍ໬䛻㛵䛩䜛◊✲

୰ሯ䚷グ❶㻌㻣䠊 䝞䜽䝔䝸䜰䝉䝹䝻䞊䝇䛾」ྜ໬䛻䜘 ኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕䜛ᶵ⬟໬ᛶᮦᩱ䛾㛤Ⓨ㻛䝉䝹䝻䞊䝇䛸䝫䝸䝬䞊䛾㝵ᒙⓗ」ྜ໬䛻䜘䜛ேᕤ䜽䝏䜽䝷䛾㛤Ⓨỿ䚷Ⅱᕼ㻌㻤䠊 ◁᱈Ẇ䜢ཎᩱ䛻䛧䛯άᛶⅣ䛾〇㐀
䛸ᛂ⏝

ᅵᶫ䚷Ṍᐇ

኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕㻥䠊 ᪥ᮏཎጞྂ௦㔠ᒓჾ䛾ᮦ㉁䚸〇స ኱Ꮫ㝔ᩥᏛ◊✲⛉ ኱Ꮫ㝔⏕ᢏ⾡䛻㛵䛩䜛ᩥ⌮Ꮫ㝿◊✲୕ዲ䚷⿱ኴ㑻ᶵ⬟ホ౯㒊㛛
䠘ᩘ⌮ゎᯒᏛศ㔝䠚㻝䠊 పᨺᑕ໬䝣䜵䝷䜲䝖㗰䜢⏝䛔䛯␗ᮦ
⥅ᡭ䛾ホ౯

ᮾ໭኱Ꮫ

㻞䠊 ⁐᥋⥅ᡭ୰䛻Ꮡᅾ䛩䜛⾲㠃䛝⿣㐍 ᗈᓥ኱Ꮫᒎ䝅䝭䝳䝺䞊䝅䝵䞁䛸䛭䛾ホ౯䛻㛵䛩䜛◊✲− vii −

ᩍᤵ
ຓᩍ
኱Ꮫ㝔⏕

㜿㒊䚷ᘯ஽
ྔ㔝䚷⩧
኱ሙ䚷ᙲ

䞉䞉䞉 㻝㻝㻢ຓᩍ⏣୰䚷ᬛ⾜䞉䞉䞉 㻝㻞㻜

෸ᩍᤵ

㔝ୖ䚷ಟᖹ

㻝䠊 ⁐᥋⇕※ᙧែ䛚䜘䜃䝡䞊䝗ᙧᡂ䜢 ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ⪃៖䛧䛯⁐᥋⇕ኚᙧ䝰䝕䝹䛾ᵓ⠏ᐑᆏ䚷ྐ࿴㻌

኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ㻞䠊 పᨺᑕ໬䝣䜵䝷䜲䝖㗰㻲㻤㻞㻴䛾䝺䞊䝄⁐᥋㒊䛻䛚䛡䜛จᅛ๭䜜Ⓨ⏕㝈⏺䜂䛪䜏䛻㛵䛩䜛◊✲᳃䚷⿱❶㻌㻟䠊 ᰾⼥ྜ⅔పᨺᑕ໬㔠ᒓᮦᩱ␗ᮦ
⁐᥋㒊䛾ㅖ≉ᛶ䛻ཬ䜌䛩⁐᥋᮲
௳䛾ᙳ㡪

ᮾ໭኱Ꮫ

䞉䞉䞉 㻝㻞㻞

䠘Ꮫෆ䠚኱Ꮫ㝔ᕤᏛ◊✲⛉ ຓᩍ୕ୖ䚷Ḡᕼ㻌

ி㒔኱Ꮫ

ຓᩍ
኱Ꮫ㝔⏕

▼ᕝ䚷ᩄஅ
ᯇᮏ䚷⌮బ

䞉䞉䞉 㻝㻞㻠㻞䠊 ⑂ປᑑ࿨ホ౯ᡭἲ䛾㧗ᗘ໬䠄ከ㍈ ❧࿨㤋኱Ꮫ㈇Ⲵ䛻䛚䛡䜛⑂ປᙉᗘ≉ᛶ䛾ホ౯䛸䝰䝕䝹໬䠅ᩍᤵఀ⸨䚷㝯ᇶ䞉䞉䞉 㻝㻞㻢㻟䠊 ⷧᯈ㗰ᯈ䛾䝇䝫䝑䝖⁐᥋㒊䛻䛚䛡䜛 㛗ᓮ኱Ꮫ⑂ປᑑ࿨䛾ホ౯䛻䛴䛔䛶

෸ᩍᤵ
኱Ꮫ㝔⏕

຾⏣䚷㡰୍
ᑠᐑ䚷㈼ኴ

䞉䞉䞉 㻝㻞㻤㻠䠊 䝺䞊䝄䞉䜰䞊䜽䝝䜲䝤䝸䝑䝗⁐᥋ἲ䛾 ஑ᕞ኱Ꮫ⯪యᘓ㐀ᕤ⛬㐺⏝䛻ྥ䛡䛯ᇶ♏
᳨ウ䇷㻌ྠ⁐᥋ἲ䛻䜘䜚〇స䛥䜜䛯᏶඲⁐䛡㎸䜏㼀㻌⥅ᡭ䛻⏕䛨䜛⁐᥋ṧ␃ᛂຊ䛾ィ 㻌䇷

෸ᩍᤵ
ᢏ⾡ᑓ㛛
⫋ဨ

ᚋ⸨䚷ᾈ஧
ᮧୖ䚷ᖾ἞

䞉䞉䞉 㻝㻟㻜㻡䠊 ᘓ⠏ᵓ㐀⏝㧗ᙇຊ㗰䜈䛾㧗䜶䝛䝹䜼䞊ᐦᗘ⁐᥋䛾㐺⏝෸ᩍᤵᓮ㔝䚷Ⰻẚ࿅㻌 䞉䞉䞉 㻝㻟㻟

ᩍᤵ
኱Ꮫ㝔⏕

ᑎ⏣䚷㈼஧㑻᪂Ꮿ䚷ຬ୍䞉䞉䞉 㻝㻟㻡

ᐈဨᩍᤵ
኱Ꮫ㝔⏕
ᩍᤵ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

୰㎸䚷ᛅ⏨
ቑ⏣䚷㛤
㔠Ꮚ䚷ὒᩥ
ᒸ㔝䚷ᆂభ
ᕳᓥ䚷῟
᳃ᕝ䚷࿴㍤

䞉䞉䞉 㻝㻟㻣㻟䠊 పኚែ ᗘ⁐᥋ᮦᩱ䛻䜘䜛ᶫᱱ⿵ಟ⁐᥋㒊䛾ṧ␃ᛂຊศᕸ䛾ᩘ್ゎᯒᡭἲ䛾ᵓ⠏䠘ಙ㢗ᛶタィᏛศ㔝䠚㻝䠊 䝢䞊䝙䞁䜾䛻䜘䜛㗰ᵓ㐀≀䛾㛗ᑑ࿨໬ຠᯝ䛻㛵䛩䜛ᇶ♏ⓗ◊✲

㏆␥኱Ꮫ

ᮾ໭኱Ꮫ
㻢䠊 ṧ␃䜸䞊䝇䝔䝘䜲䝖䛾㼀㻾㻵㻼ຠᯝ䛜ᒁᡤᛂຊศᕸ䛻୚䛘䜛ᙳ㡪䛻㛵䛩䜛⤖ᬗረᛶ㻲㻱ゎᯒ㻣䠊 ⌧ሙ⁐᥋ᆺᰕᱱ⁐᥋᥋ྜ㒊䛻䛚䛡䜛ᱱ➃௙ཱྀ䝕䜱䝔䞊䝹䛻㛵䛩䜛
ᐇ㦂ⓗ◊✲

᪩✄⏣኱Ꮫ
ಙᕞ኱Ꮫ

− viii −䠘Ꮫෆ䠚㻝䠊 ἲ㠃ཷᅽᯈ䛻䛚䛡䜛䜾䝷䞁䝗䜰䞁䜹䞊⥭ᙇຊ䛾㠀◚ቯホ౯ᡭἲ䛾◊✲㻔㼄⥺䛻䜘䜛ṧ␃ᛂຊ ᐃ⿦⨨䜢฼⏝䛧䛯䜾䝷䞁䝗䜰䞁䜹䞊⥭ᙇຊ䛾㠀◚ቯホ౯ᡭἲ䛾◊✲㻕኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

㙊⏣䚷ᩄ㑻
᭹㒊䚷᫴୍
᳿䚷᫛᫂

㻞䠊 䛝⿣Ⓨ⏕䞉㐍ᒎ䛻ཬ䜌䛩ᚤど⤌⧊䛾ᙳ㡪䛻㛵䛩䜛᳨ウ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᩍᤵᮃ᭶䚷ṇே㻌㻟䠊 ෇ᙧ㗰⟶䝎䞁䝟䞊䛾ረᛶኚᙧᛶ⬟ ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ䛻ཬ䜌䛩ṧ␃ᛂຊ䛾ᙳ㡪᱓ཎ䚷㐍㻠䠊 ᪂䛧䛔䝺䞊䝄䝢䞊䝙䞁䜾ᢏ⾡䛾㛤
Ⓨ

బ㔝䚷ᬛ୍
ᒾ⏣䚷໶ᖹ
ᯇ⏣䚷᭸ᕫ
ᯇᒣ䚷ἲኸ

኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

䠘ᶵ⬟ᛶデ᩿Ꮫศ㔝䠚㻝䠊 ⥅ᡭ㒊䛾⤌⧊ᙧ≧䛻╔┠䛧䛯㻲㻿㼃 ㏆␥኱Ꮫ䝒䞊䝹ᙧ≧䛾᥈⣴

෸ᩍᤵ

⏕⏣䚷᫂ᙪ

䞉䞉䞉 㻝㻟㻥㻞䠊 㕲㗰ᮦᩱ䛾ᦶ᧿ᨩᢾ᥋ྜ䠄㻲㻿㼃䠅䛸 ᮾி኱Ꮫ⥅ᡭ䛾ᶵ⬟ホ౯ຓᩍఀ⸨䚷ᾏኴ㻌䞉䞉䞉 㻝㻠㻝㻟䠊 ᦶ᧿᧠ᢾฎ⌮䛥䜜䛯㗪㐀⏝䜰䝹䝭 㤶ᕝ㧗➼ᑓ㛛Ꮫᰯ ෸ᩍᤵ䝙䜴䝮ྜ㔠㻭㻰㻯㻝㻞䛾䝭䜽䝻⤌⧊ゎᯒఀ⸨䚷ຮ䞉䞉䞉 㻝㻠㻟㻠䠊 ᦶ᧿ᨩᢾ䝥䝻䝉䝇䜢฼⏝䛧䛯ᒁᡤྜ㔠໬䛸䛭䛾⤌⧊

㛵す኱Ꮫ

෸ᩍᤵ

ୖ⏣䚷ṇே㻌䞉䞉䞉 㻝㻠㻡㻡䠊 ┿✵䝥䝷䝈䝬⁐ᑕἲ䛷ᡂ⭷䛧ᦶ᧿ᨩᢾฎ⌮䜢᪋䛧䛯䝍䞁䜾䝇䝔䞁䛾䜲䜸䞁↷ᑕᚋ◳䛥᪥ᮏཎᏊຊ◊✲㛤 ◊✲ဨⓎᶵᵓᑠἑ䚷࿴ᕭ㻌䞉䞉䞉 㻝㻠㻣

㻢䠊 ୰Ⅳ⣲㗰䠄㻿㻠㻡㻯䠅ᦶ᧿ᨩᢾ᥋ྜ⥅ᡭ䛾⤌⧊䛸ᶵᲔⓗ≉ᛶ䛻㛵䛩䜛◊
✲

⛅⏣኱Ꮫ

ᩍᤵ
෸ᩍᤵ
኱Ꮫ㝔⏕

⚄㇂䚷ಟ
ᐑ㔝䚷Ὀᚁ
኱ஂಖ䚷⇤

䞉䞉䞉 㻝㻠㻥㻣䠊 ⃿䜜ᛶ䜢⏝䛔䛯ษ๐䝏䝑䝥⏝◳㉁ⷧ⭷䛾ษ๐ᛶ⬟ホ౯⚟஭ᕤᴗ኱Ꮫᩍᤵ⚄⏣䚷୍㝯䞉䞉䞉 㻝㻡㻝ᮌඖ䚷៞ஂ䞉䞉䞉 㻝㻡㻟ᆏᮧ䚷຾኱▼䚷㑳䞉䞉䞉 㻝㻡㻡Ⳣ⏣䚷῟䞉䞉䞉 㻝㻡㻣㻤䠊 㔜䛽ᦶ᧿ᨩᢾ䝥䝻䝉䝇䛻䜘䜛䝬䜾䝛 ኱㜰ᕷ❧ᕤᴗ◊✲ ◊✲ဨ䝅䜴䝮ྜ㔠䛾䝘䝜⤌⧊໬ᡤ㻥䠊 ᪂ᶵ⬟ᮦᩱ䛾⁐᥋䞉᥋ྜ䝥䝻䝉䝇䛾㛤Ⓨ䛸ホ౯䚷䠄ረᛶὶື䜢฼⏝䛧䛯␗✀㔠ᒓⅬ᥋ྜᢏ⾡䛾㛤Ⓨ䠅ᗈᓥ┴❧⥲ྜᢏ⾡ ๪㒊㛗
◊✲ᡤ
๪୺௵◊
✲ဨ

㻝㻜䠊 ኚືⲴ㔜ୗ䛻䛚䛡䜛༑Ꮠᘬᙇᆺᦶ ᗈᓥ኱Ꮫ᧿ᨩᢾⅬ᥋ྜ⥅ᡭ䛾⑂ປ≉ᛶ

− ix −

ᩍᤵ㎷䚷ఙὈ䞉䞉䞉 㻝㻡㻥

኱㜰ᕷ❧ᕤᴗ◊✲ ◊✲୺௵ᡤ㛗ᒸ䚷஽䞉䞉䞉 㻝㻢㻝

㬆㛛ᩍ⫱኱Ꮫᩍᤵ⏿୰䚷ఙኵ䞉䞉䞉 㻝㻢㻟㻝㻠䠊 ᦶ᧿⢊ᮎ↝⤖ἲ䛻䜘䜚స〇䛧䛯䝎䜲 ⩌㤿኱Ꮫ䜹䝇䝖⏝ྜ㔠㻭㻰㻯㻢䝫䞊䝷䝇䜰䝹䝭䝙䜴䝮䛾ᅽ⦰≉ᛶ

෸ᩍᤵ

༙㇂䚷⚞ᙪ
▼ཎ䚷⥤஀

䞉䞉䞉 㻝㻢㻡㻝㻡䠊 㻭㻝㻜㻡㻜䛸㻭㻰㻯㻝㻞䜢⏝䛔䛯」ྜ䝫䞊䝷䝇䜰䝹䝭䝙䜴䝮䛾⾪ᧁᅽ⦰≉ᛶ

⩌㤿኱Ꮫ

෸ᩍᤵ
኱Ꮫ㝔⏕

༙㇂䚷⚞ᙪ
ஂಖ⏣䚷┤அ䞉䞉䞉 㻝㻢㻣㻝㻢䠊 ᦶ᧿Ⓨ⇕⌧㇟䜢฼⏝䛧䛯䝫䞊䝷䝇䜰䝹䝭䝙䜴䝮䛾స〇

⩌㤿኱Ꮫ

෸ᩍᤵ
኱Ꮫ㝔⏕

༙㇂䚷⚞ᙪ
ᅯᏊ⏣䚷ᖾభ䞉䞉䞉 㻝㻢㻥㻝㻣䠊 㻭㻰㻯㻝㻞䝫䞊䝷䝇䜰䝹䝭䝙䜴䝮䛚䜘䜃㻭㻝㻜㻡㻜䝟䜲䝥䛾」ྜ㒊ᮦ䛻䛚䛡䜛䝟䜲䝥ཌ䛥䛸ᅽ⦰ኚᙧᣲື䛾㛵ಀ

⩌㤿኱Ꮫ

෸ᩍᤵ
኱Ꮫ㝔⏕

༙㇂䚷⚞ᙪ
୰㔝䚷䜖䛝Ꮚ䞉䞉䞉 㻝㻣㻝㻝㻤䠊 ᦶ᧿ᨩᢾ⢊ᮎ䝥䝻䝉䝇䛻䜘䜛㻲㼑㻙㻣㼙㼍㼟㼟㻑㻭㼘ྜ㔠䛾⾲㠃◳໬኱㜰ᕷ❧ᕤᴗ◊✲ ◊✲㒊㛗
ᡤ

⚟ゅ䚷┿⏨

䞉䞉䞉 㻝㻣㻟㻝㻥䠊 㠀㕲ᮦᩱ䛾ᦶ᧿ᨩᢾ᥋ྜ䠄㻲㻿㼃䠅䛸 Ἀ⦖ᕤᴗ㧗➼ᑓ㛛 ෸ᩍᤵ⥅ᡭ䛾ᶵ⬟ホ౯䚷䠄␗ᮦ᥋ྜ⥅ᡭ Ꮫᰯᮦ䛾⾲㠃ᨵ㉁ฎ⌮䛻䜘䜛⑂ປ≉ᛶ
ᨵၿ䠅

ᨻᮌ䚷ΎᏕ

䞉䞉䞉 㻝㻣㻡㱟㇂኱Ꮫ㻞㻜䠊 ᦶ᧿ᨩᢾ᥋ྜ䛻䜘䜚స〇䛥䜜䛯㼀㼕ྜ㔠᥋ྜᮦ䛾ᚤ⣽⤌⧊䛚䜘䜃⑂ປ
ᙉᗘホ౯

᳃䚷ṇ࿴

䞉䞉䞉 㻝㻣㻣㻝㻝䠊 పⅣ⣲䝧䜲䝘䜲䝖㗰䛾ప 㠌ᛶ䛻䛚䜘䜌䛩ᚤど⤌⧊䛾ᙳ㡪ி㒔኱Ꮫ㻝㻞䠊 ᦶ᧿ᨩᢾ䝥䝻䝉䝇䛻䜘䜛㼃㻯㻙㻯㼞㻯㻙㻺㼕㻌⁐ᑕ⓶⭷䛾ᨵ㉁㻝㻟䠊 ␗✀䜰䝹䝭䝙䜴䝮ྜ㔠䛾ᦶ᧿ᨩᢾ
᥋ྜ≉ᛶ

ᩍᤵ

ㅮᖌ

䠘Ꮫෆ䠚
㻝䠊 㻲㻿㼃䛾ὶື⌧㇟䛾ᩘ್ゎᯒ䝰䝕䝹໬䛻䜘䜛⥅ᡭᛶ⬟䛾ண኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵᐑᆏ䚷ྐ࿴㻌

䝇䝬䞊䝖䝥䝻䝉䝇◊✲䝉䞁䝍䞊䠘䝇䝬䞊䝖䝡䞊䝮䝥䝻䝉䝇Ꮫศ㔝䠚㻝䠊 䝺䞊䝄ຍᕤ᫬䛻䛚䛡䜛Ⅳ⣲⧄⥔ᙉ ᮾிᕤ⛉኱Ꮫ໬䝥䝷䝇䝏䝑䜽䛾⇕ⓗ⌧㇟䛻㛵䛩䜛
ᩘ್ゎᯒ

ㅮᖌ

኱ஂಖ䚷཭㞞㻌 䞉䞉䞉 㻝㻣㻥㻞䠊 ▷䝟䝹䝇䝺䞊䝄䞊䛻䜘䜛ᮦᩱຍᕤ ᐑᓮ኱Ꮫ䛾ᇶ♏ⓗゎ᫂䞉㉸▷䝟䝹䝇䝺䞊䝄䞊䛻䜘䜛ຍᕤ䝥䝻䝉䝇䛻㛵䛩䜛◊
✲

෸ᩍᤵ

⏥⸨䚷ṇே

−x−

䞉䞉䞉 㻝㻤㻜⛅⏣኱Ꮫ㻟䠊 䝣䜵䝮䝖⛊䝺䞊䝄䞊䜰䝤䝺䞊䝅䝵䞁䛻䜘䜚䝸䝏䜴䝮䝩䜴㓟ሷ⤖ᬗ䛚䜘䜃䜺䝷䝇⾲㠃䛻ᙧᡂ䛧䛯䝘䝜䝩䞊䝹䛾䝰䝹䝣䜷䝻䝆䞊

ᩍᤵ
኱Ꮫ㝔⏕

ᑠ⋢䚷ᒎᏹ
ᆏୗ䚷ᬛ⨾

䞉䞉䞉 㻝㻤㻞㻠䠊 䝺䞊䝄ᒁᡤຍ⇕ἲ䛻䜘䜛⣧䝏䝍䞁㻛䝫䝸䜶䝏䝺䞁」ྜᮦᩱ䛾స〇

ᩍᤵ

ᰘᰗ䚷ᩄဢ

䞉䞉䞉 㻝㻤㻠㻡䠊 䝣䜵䝮䝖⛊䝺䞊䝄䜢⏝䛔䛯ྍどගᛂ ኱㜰ᕷ❧ᕤᴗ◊✲ ◊✲୺ᖿ⟅ᆺ㓟໬䝏䝍䞁䛾๰〇
ᡤ

㧗ᶫ䚷㞞ஓ

䞉䞉䞉 㻝㻤㻢㻢䠊 䝣䜵䝮䝖⛊䝺䞊䝄䞊䜢⏝䛔䛯⣽⬊ఙ ㏆␥኱Ꮫᒎไᚚ䛾䛯䜑䛾⾲㠃ᵓ㐀ᙧᡂ䛻㛵
䛩䜛◊✲

ᩍᤵ
ຓᩍ

୰㔝䚷ேᚿ
ὠᒣ䚷⨾✑

䞉䞉䞉 㻝㻤㻣෸ᩍᤵᶫ᪂䚷๛䞉䞉䞉 㻝㻤㻤ຓᩍᯇᆏ䚷ኊኴ䞉䞉䞉 㻝㻥㻜

⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲
ᡤ
ဨ

ᮧ஭㻌೺௓

䞉䞉䞉 㻝㻥㻝㻝㻜䠊 䝺䞊䝄䛻䜘䜛㔠ᒓ㐀ᙧᢏ⾡䛻㛵䛩 ▼ᕝ┴ᕤᴗヨ㦂ሙ ୺௵ᢏᖌ䜛ᇶ♏◊✲䚷䇷㻌㐀ᙧ㞺ᅖẼ䛜୚䛘䜛⾲㠃ᙧ≧䜈䛾ᙳ㡪㻌䇷ᒣୗ䚷㡰ᗈ䞉䞉䞉 㻝㻥㻟㻝㻝䠊 㓟໬䝏䝍䞁ෆ㒊䛾㟁Ẽ᢬ᢠῶᑡ䛾 ㏆␥኱Ꮫ䛯䜑䛾䝣䜵䝮䝖⛊䝺䞊䝄䞊㞟ග↷ᑕྜྷ⏣䚷ᐇ㻌䞉䞉䞉 㻝㻥㻡㻣䠊 ᚤ⢏Ꮚ䞉䝘䝜⢏Ꮚ䛾ᵓ㐀ไᚚ䛸≉ᛶホ౯䚷䡚㔠ᒓ䞉㔠ᒓ㓟໬≀⢏Ꮚ䛾䝘䝜䞉䜰䝖㓄ิゎᯒ䡚

ᐩᒣ኱Ꮫ

⇃ᮏ኱Ꮫ

㻤䠊 ᅛయ䜲䜸䞁஺᥮ἲ䛻䜘䜛䜺䝷䝇୰䜈 ༓ⴥ኱Ꮫ䛾㔠ᒓᒙᙧᡂ㻥䠊 䝥䝷䝈䝰䝙䝑䜽䝕䝞䜲䝇䛻ྥ䛡䛯ᚤ⢏Ꮚ䝡䞊䝮䛻䜘䜛ᶵ⬟ᛶⷧ⭷䛾స
〇䛸ホ౯

ᩍᤵ

䠘䝇䝬䞊䝖䝁䞊䝔䜱䞁䜾䝥䝻䝉䝇Ꮫศ㔝䠚㻝䠊 」ྜᮦᩱ䛾⇕≀ᛶホ౯䠆㻞䠊 㻿㻻㻲㻯ᮦᩱᚤ⢏Ꮚ䛾ྜᡂ䛸≉ᛶホ౯㻟䠊 ከᏍ㉁ᮦᩱ䛾⇕≀ᛶホ౯⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲ᡤဨ㜿Ꮚᓥ䚷䜑䛠䜏 䞉䞉䞉 㻝㻥㻢኱㜰ᗓ❧኱Ꮫ

ᩍᤵ
ຓᩍ
኱Ꮫ㝔⏕

㊊❧䚷ඖ᫂
ᮌୗ䚷༟ஓ
෇Ꮚ䚷ᘯ႐

䞉䞉䞉 䠄㻞㻡䠅

⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲
ᡤ
ဨ

㜿㒊䚷㝧㤶

䞉䞉䞉 㻝㻥㻤㻠䠊 ⧄⥔≧⢏Ꮚ䜢⏝䛔䛯ᶵᲔⓗ」ྜ໬ ᮾ໭኱Ꮫ㐣⛬䛾㻰㻱㻹䝅䝭䝳䝺䞊䝅䝵䞁

ᩍᤵ
኱Ꮫ㝔⏕

ຍ⣡䚷⣧ஓ
▼ཎ䚷┿࿃

䞉䞉䞉 㻞㻜㻜䠆㻡䠊 Ỉ୰㧗ศᩓ㻳㼐㻜㻚㻞㻯㼑㻜㻚㻤㻻㻝㻚㻥䝘䝜⤖ ⩌㤿኱Ꮫᬗ䛾ྜᡂ䛸䛭䛾ᵓ㐀ホ౯

ຓᩍ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

బ⸨䚷࿴ዲ
ᇼཱྀ䚷࿴ဢ
᪂஭䚷ឡᮍ

䞉䞉䞉 㻔㻟㻝㻕

− xi −㻢䠊 䝇䝷䝸䞊⤌ᡂ䛾␗䛺䜛䝀䝹䜻䝱䝇ᡂᙧయ୰䝫䝸䝬䞊䛾䜾䝷䝣䜯䜲䝖໬ᣲື䛸䛭䛾ᑟ㟁≉ᛶྡྂᒇᕤᴗ኱Ꮫ෸ᩍᤵⓑ஭㻌Ꮥ䞉䞉䞉 㻞㻜㻞㻣䠊 ᚤ⢏Ꮚ䚸䝘䝜⢏Ꮚ䛾ᵓ㐀ไᚚ䛸≉ᛶホ౯䠖㻹㼓㼀㼕㻞㻻㻡⢊ᮎ䛾⢏Ꮚᙧែไᚚ䛸ίỈ䝣䜱䝹䝍䞊䜈䛾ᛂ⏝

⟃Ἴ኱Ꮫ

෸ᩍᤵ

㕥ᮌ䚷⩏࿴

䞉䞉䞉 㻞㻜㻠㻤䠊 䝘䝜」ྜ⢏Ꮚ䜢฼⏝䛧䛯㻿㼕㻟㻺㻠㻌䝉䝷䝭䝑䜽䝇䛾స〇ᶓ὾ᅜ❧኱Ꮫᩍᤵከ䚻ぢ㻌⣧୍䞉䞉䞉 㻞㻜㻢㻥䠊 ᚤ⢏Ꮚไᚚ䛻䜘䜛䝉䝷䝭䝑䜽䝇䛾䝭䜽 㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ ෸ᩍᤵ䝻䛚䜘䜃䝬䜽䝻ᵓ㐀ไᚚ䛸≉ᛶホ౯⏣୰䚷ㅍ䞉䞉䞉 㻞㻜㻤᪩✄⏣኱Ꮫ㻝㻜䠊 ⢏Ꮚ䝧䞊䝇䝰䝕䝹䜢⤌䜏㎸䜣䛰㻰㻱㻹䝅䝭䝳䝺䞊䝵䞁䛻䜘䜛䝭䝹䛾ゎᯒ

෸ᩍᤵ

ᡤ䚷༓ᬕ

䞉䞉䞉 㻞㻝㻜㻝㻝䠊 㟁Ẽ໬Ꮫᯒฟἲ䛻䜘䜛㓟໬ள㖄ⷧ⭷䛾ᵓ㐀ไᚚᩍᤵ⸨䚷ṇ╩䞉䞉䞉 㻞㻝㻞ᩍᤵ᳃䚷ⱥ฼䞉䞉䞉 䠄㻟㻡䠅

෸ᩍᤵ

Ᏻ⏣㻌බ୍

䞉䞉䞉 㻞㻝㻠

ྡྂᒇᕤᴗ኱Ꮫ

䠆㻝㻞䠊 䜲䜸䞁ఏᑟᛶ㧗ศᏊ䜰䜽䝏䝳䜶䞊䝍 ᐩᒣ኱Ꮫ䛻䜘䜛⬟ືᆺ䜹䝔䞊䝔䝹䛾㛤Ⓨ㻝㻟䠊 ᡂᙧయ䛾୙ᆒ㉁ᵓ㐀ᙧᡂ䛻㛵䛩䜛 ᮾிᕤᴗ኱Ꮫ◊✲䠘Ꮫෆ䠚㻝䠊 ⢏Ꮚ」ྜ໬䛻䜘䜛㧗ᛶ⬟⇕㟁ኚ᥮ᮦᩱ䛾๰〇኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ
኱Ꮫ㝔⏕

຾ᒣ䚷ⱱ
ᒣྡ䚷ᓫ⿱

䠘䝘䝜䞉䝬䜲䜽䝻ᵓ㐀ไᚚ䝥䝻䝉䝇Ꮫศ㔝䠚
ᩍᤵ

ᑠᕝ䚷࿴ὒ

䞉䞉䞉 䠄㻝䠅䠆㻞䠊 ᾮ┦ྜᡂἲ䜢฼⏝䛧䛯ⓑ㔠䝘䝜⢏ ᮾி⌮⛉኱ᏛᏊ㻛䜹䞊䝪䞁䝘䝜䝏䝳䞊䝤㻛䜹䞊䝪䞁䝨䞊䝟䞊」ྜయ䛾ྜᡂ

෸ᩍᤵ

⏣୰䚷ඃᐇ

䞉䞉䞉 䠄㻟䠅䠆㻟䠊 ᾏὒ⎔ቃ䛷䛾⪏ஂᛶྥୖ䜢┠ᣦ䛧䛯᪂つ⁐ᑕ䝥䝻䝉䝇䛾☜❧

ຓᩍ

୰㔝䚷ᩔ

䞉䞉䞉 䠄㻡䠅㻠䠊 ග㐀ᙧἲ䜢⏝䛔䛯䝉䝷䝭䝑䜽୕ḟඖ ⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲ဨᵓ㐀య䛾స〇䛻㛵䛩䜛⥴᮲௳䛾᳨ ᡤ
ウ

ᇼ⏣䚷ᖿ๎

䞉䞉䞉 㻞㻝㻢

⏘ᴗᢏ⾡⥲ྜ◊✲ ୺௵◊✲
ᡤ
ဨ

ቑ⏣䚷ె୔

䞉䞉䞉 䠄㻣䠅䠆㻝䠊 䝇䝷䝸䞊≧䝘䝜䝫䝸䝬䞊䛚䜘䜃䝉䝷䝭䝑䜽䝇⢏Ꮚ䜢⏝䛔䛯ప䜶䝛䝹䜼䞊ᆺ䝁䞊䝔䜱䞁䜾䝥䝻䝉䝇䛾㛤Ⓨ䠆㻡䠊 㼀㼕㻻㻞㻌䝘䝜䜽䝸䝇䝍䝹䝁䞊䝔䜱䞁䜾䛚䜘䜃㼀㼕㻻㻞㻌䝘䝜䜽䝸䝇䝍䝹㞟✚ᆺ⢏Ꮚ䛾䝝䝻䝀䞁㻛㓟䝣䝸䞊ྜᡂᮾ໭኱Ꮫ⌰⌫኱ᏛᕤᏛ㒊− xii −

䠆㻢䠊 䝬䜲䜽䝻ග㐀ᙧἲ䜢⏝䛔䛯඲ᅛయᆺ䝸䝏䜴䝮㟁ụ䛾๰〇

ຓᩍ

Ჷ᪉䚷⿱୍

䞉䞉䞉 䠄㻝㻝䠅㻝䠊 䝯䜹䝙䜹䝹䜰䝻䜲䞁䜾ἲ䛻䜘䜚స〇䛧 ឡ፾኱Ꮫ䛯⪏⇕䜰䝹䝭䝙䜴䝮ྜ㔠䛾ᚤ⣽⤌
⧊ホ౯

ㅮᖌ
኱Ꮫ㝔⏕

㜰ᮏ䚷㎮㢧
⥞㇂䚷ᑗኴ

䞉䞉䞉 㻞㻝㻤㻞䠊 ㌿఩⥙䜢฼⏝䛧䛯⢏ෆ䝧䜲䝘䜲䝖⏕ ឡ፾኱Ꮫᡂ䛸䛭䛾ᶵᲔⓗᛶ㉁䜈䛾ຠᯝ

ㅮᖌ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

㜰ᮏ䚷㎮㢧
ᑠす䚷᪩ⱑ
୰す䚷♸ኴ
ྜྷ⃝䚷ಇᕼ
ᖹᮏ䚷㈗ྐ

䞉䞉䞉 㻞㻞㻜㻟䠊 䝬䜾䝛䝅䜴䝮ྜ㔠䛾⤖ᬗ⢏ᚤ⣽໬䛻ཬ䜌䛩䜲䝑䝖䝸䜴䝮ῧຍຠᯝ

ឡ፾኱Ꮫ

ㅮᖌ
኱Ꮫ㝔⏕
኱Ꮫ㝔⏕

㜰ᮏ䚷㎮㢧
ᯇᮏ䚷ᣅஓ
ᑠཎ䚷᫂᪥ே䞉䞉䞉 㻞㻞㻞㻠䠊 㧗 䝺䞊䝄㢧ᚤ㙾䛻䜘䜛จᅛ䞉ᅛ┦ኚែ䛸䛭䛾ሙほᐹ䞉⁐⼥ụ☢Ẽไᚚ䜰䞊䜽⁐᥋ἲ䛻䜘䜛஺ὶ☢ሙ䜢ᛂ⏝䛧䛯จᅛ⤌⧊䛾ほᐹἈ⦖┴ᕤᴗᢏ⾡䝉 ୺௵◊✲
䞁䝍䞊
ဨ

Ჴཎ䚷㟹

䞉䞉䞉 㻞㻞㻠㻡䠊 㧗 䝺䞊䝄㢧ᚤ㙾䛻䜘䜛จᅛ䞉ᅛ┦ኚែ䛸䛭䛾ሙほᐹ䞉䝝䜲䝤䝸䝑䝗䠐㻰䛭䛾ሙほᐹ䝅䝇䝔䝮䛾㛤Ⓨ⥲ྜ⛉Ꮫ◊✲ᶵᵓ ◊✲ဨ
๪୺௵ᢏ
ᖌ

ᙇ䚷᭾※
䠬䠝䠮䠧䠡䠮
䠦䠫䠯䠡䠬䠤䠠䠫
䠪䞉䞉䞉 㻞㻞㻢㻢䠊 䝩䜴໬䝏䝍䞁䛻䜘䜛䝏䝍䞁⁐᥋㔠ᒓ䛾⤌⧊ไᚚ኱㜰ᗓ❧኱Ꮫᩍᤵ㎷ᕝ䚷ṇே䞉䞉䞉 㻞㻞㻤ᩍᤵすᮏ䚷᫂⏕䞉䞉䞉 㻞㻞㻥

෸ᩍᤵ

᳃ᡞ䚷ⱱ୍

䞉䞉䞉 㻞㻟㻝䞉䞉䞉 㻞㻟㻟

䠘ಙ㢗ᛶホ౯䞉ண㤳㒔኱Ꮫᮾி

䝅䝇䝔䝮Ꮫศ㔝䠚㻣䠊 㻰㻸㻯㻌䝁䞊䝔䜱䞁䜾䛾๓ฎ⌮䛸䛧䛶䛾 㛵す኱Ꮫ䜰䜽䝤䝇䝸䝥䝷䝈䝬❅໬䛾ຠᯝ㻤䠊 䛭䛾ሙほᐹ䛻䜘䜛୰Ⅳ⣲㗰䝷䝇䝬䝹䝔䞁䝃䜲䝖䛾⤌⧊ᙧᡂᶵᵓ䛾ゎ᫂ᓥ᰿኱Ꮫ㻥䠊 䜰䝹䝭䝙䜴䝮ྜ㔠䛸䝬䜾䝛䝅䜴䝮ྜ㔠䛾㘫᥋⏺㠃ᵓ㐀ゎᯒᐩᒣ┴ᕤᴗᢏ⾡䝉 ୺௵◊✲
䞁䝍䞊
ဨ

ᒣᓊ䚷ⱥᶞ

኱Ꮫ㝔ᕤᏛ◊✲⛉ ᣍ䜈䛔ᩍᤵᒣᮏ䚷㧗㑳㻌㻝䠊 㖟⣔䝣䜱䝷䞊䜢฼⏝䛧䛯ᑟ㟁ᛶ᥋╔๣䛾㟁Ẽఏᑟ≉ᛶ䛻ཬ䜌䛩໬ᏛⓗᅉᏊ䛾ᙳ㡪

⩌㤿኱Ꮫ

ㅮᖌ

஭ୖ䚷㞞༤

㻞䠊 䜑䛳䛝ἲ䛸㑅ᢥ⁐ゎ䜢⏝䛔䛯䝘䝜䝫䞊䝷䝇ᵓ㐀䛾⏕ᡂ

᪩✄⏣኱Ꮫ

ୖ⣭◊✲
ဨ

㰻⸨䚷⨾⣖Ꮚ㻌 䞉䞉䞉 㻞㻟㻣䠘Ꮫෆ䠚䠍䠊 㧗 䝺䞊䝄㢧ᚤ㙾䛻䜘䜛จᅛ㐣⛬䛾䛭䛾ሙほᐹ

䠘䝇䝬䞊䝖䜾䝸䞊䞁䝥䝻䝉䝇Ꮫศ㔝䠚− xiii −䞉䞉䞉 㻞㻟㻡䠘Ꮫෆ䠚㻝䠊 ᚤ⏕≀䛻䜘䜛㔠ᒓ⢏Ꮚ䛾ྜᡂ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ᝷⏣䚷カ㻞䠊 ḟୡ௦䝟䝽䞊༙ᑟయ䛾䛯䜑䛾䝎䜲䝪䞁䝗ᢏ⾡䛾㛤Ⓨ኱Ꮫ㝔ᕤᏛ◊✲⛉ ෸ᩍᤵ⚟ᮏ䚷ಙḟ㻌㻟䠊 㖄䝣䝸䞊䝬䜲䜽䝻䞉䝘䝜⢏Ꮚ䛾ᚤ⣽䛼䜜ᣲື䛻㛵䛩䜛ᇶ♏◊✲኱Ꮫ㝔ᕤᏛ◊✲⛉ ㅮᖌᏳ⏣䚷Ύ࿴㻌㻠䠊 䝉䝺䞁໬䜹䝗䝭䜴䝮䛾ᚤ⏕≀ྜᡂ኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕⥤㔝䚷⿱அ㻌㻡䠊 䝔䝹䝹໬䝡䝇䝬䝇䚸䝉䝺䞁໬䝡䝇䝬䝇䛾ᚤ⏕≀ྜᡂ

኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕㡲⏣䚷ዌᚿ㻌㻢䠊 ⭷ศ㞳άᛶởἾ䛾⭷⾲㠃䛾䝣䜯䜴䝸䞁䜾≀㉁䛾ほᐹ኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕㧗⏣䚷୍㍤㻌㻣䠊 ᚤ⏕≀䛻䜘䜛Ỉ⎔ቃ䛛䜙䛾䝞䝘䝆䜴䝮䛾ᅇ཰኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕㛗ᑿ䚷▱᫂㻤䠊 䝣䜱䝷䞊ྵ᭷䝝䜲䝤䝸䝑䝗ᶞ⬡ᐇ⿦䛻䛚䛡䜛ᐇ⿦ᛶホ౯኱Ꮫ㝔ᕤᏛ◊✲⛉ ኱Ꮫ㝔⏕ᒣෆ䚷ᾈᖹ− xiv −

ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䞉◊✲ሗ࿌᭩㻌䠄ྍ㏫ⓗ䛺᥋ྜ䛺䜙䜃䛻⿕そᢏ⾡䛾㛤Ⓨ䠅䛆◊✲┠ⓗ䛇
ྍ㏫ⓗ䛺᥋ྜ䛺䜙䜃䛻⿕そ䝥䝻䝉䝇䛜ᮏ㉁ⓗ䛻㐩ᡂ䛷䛝䜜䜀䚸స〇䛩䜛㒊ᮦ䛾ᶵ⬟≉ᛶ䜢᭱㐺໬䛧䛺䛜䜙䚸ᙧ≧䜔⤌⧊䛾タィኚ᭦䜢ྠ᫬䛻㐩ᡂ䛧ᚓ䜛䚸᪂䛧䛔ᕤᏛⓗ䝁䞁䝉䝥䝖䛜☜❧䛷䛝䜛䚹ᮏ◊✲ㄢ㢟䛷䛿䚸⇕䞉ຊ䞉㟁Ẽ䞉☢Ẽ䛺䛹䚸እ㒊䛛䜙䛾䜶䝛䝹䜼䞊ᑟධ䜢᭱ᑠ㝈䛻ᢚ䛘䛴䛴䚸ᕼᑡ⣲ᮦ䜔㧗ရ㉁ᮦᩱ䛾䝸䝃䜲䜽䝹䜔䝸䝴䞊䝇䜢ಁ㐍䛩䜛䚸ᐇ㊶ⓗ䛺ྍ㏫᥋ྜ䛺䜙䜃䛻⿕そᢏ⾡䛻䛴䛔䛶᳨ウ䛩䜛䚹ᆅ⌫⎔ቃಖㆤ䜢ᇶ┙䛸䛧䛯ᣢ⥆ྍ⬟♫఍䛾ᐇ⌧䛻ྥ䛡䛶䚸᪂䛧䛔⛉Ꮫᢏ⾡ศ㔝䛾య⣔໬䛸㐃ᦠᣐ
Ⅼ䛾ᙧᡂ䜢⤒䛶䚸✚ᴟⓗ䛻ᐤ୚䛩䜛䛣䛸䛜┠ᶆ䛷䛒䜛䚹䛆ᡂᯝᴫせ䛇
ᙺ๭ศᢸᆺ䛾ㄢ㢟タᐃ䛻ἢ䛔䚸ᡭ᥃䛡䛶䛝䛯◊✲㛤Ⓨ䝔䞊䝬䛻ᑐ䛧䚸䛂ྍ㏫ⓗ䛺᥋ྜ䛺䜙䜃䛻⿕そ䛃䛾ᴫᛕ䜢ྲྀ䜚ධ䜜䚸ᡤෆᩍဨ䛸ඹྠ◊✲ဨ䛾㛫䛷άⓎ䛺㐃ᦠ䜢㐍䜑䛯䚹䠄䠍䠅䠏䠠䝥䝸䞁䝍ᢏ⾡䜢⏝䛔䛶స〇䛥䜜䛯䚸」㞧ᙧ≧䛾䝬䜲䜽䝻ᵓ㐀య䛻ᑐ䛧䛶䚸ᐊୗ䛷Ỉ⁐ᾮ䝥䝻䝉䝇䜢᪋䛧䚸↓ᶵ䝁䞊䝔䜱䞁䜾䜢㐩ᡂ䛩䜛䛣䛸䛷䚸ྍ㏫ⓗ䛻ᶵ⬟ᛶ⾲㠃䜢ᙧᡂ䛩䜛䛣䛸䛻ᡂຌ䛧䛯䚹䠄䠎䠅↓ᶵᚤ⢏Ꮚ䜢㧗⃰ᗘ䛻ศᩓ䛧䛯᭷ᶵ⁐፹䛻䛴䛔䛶䚸እຊ㈇Ⲵ䛸㝖Ⲵ䛾䝇䜲䝑䝏䞁䜾䛻䜘䜚䚸ὶືᛶ䛜ྍ㏫ⓗ䛻ኚ໬䛩䜛≉Ṧ䛺䝺䜸䝻䝆䞊≉ᛶ䜢ά⏝䛧䚸䝥䝷䝈䝬䜔䜺䝇䝣䝺䞊䝮䛺䛹䚸⁐ᑕ⇕※䜈䛾Ᏻᐃᑟධ䜢㐩ᡂ䛧䛯䚹䠄䠏䠅ᅛయ୰䛷䛾㧗䛔䜲䜸䞁㟁ᑟ䜢♧䛩↓ᶵ⣲ᮦ䜢⏝䛔䛶䚸኱䛝䛺ẚ⾲㠃✚䜢᭷䛩䜛㟁ᴟ䝕䝞䜲䝇䜢䠏䠠䝥䝸䞁䝔䜱䞁䜾䛧䚸ྍ㏫ⓗ䛻⵳㟁䛸ᨺ㟁䛜ྍ⬟䛺ḟୡ௦㟁ụ䛾ヨస䜢㐍䜑䛯䚹䠄䠐䠅ྍ㏫ⓗ䛻⧞䜚㏉䛥䜜䜛䚸↓ᶵ⣲ᮦ䛾⁐ฟ䛸㦵⤌⧊䛾ᙧᡂ䜢⤒䛶䚸⮬Ⓨⓗ䛺௦ㅰ䜢ᐇ⌧䛧䛖䜛ேᕤ㦵䜲䞁䝥䝷䞁䝖䛾㛤Ⓨ䜢㐍䜑䛯䚹䠏䠠䝥䝸䞁䝍ᢏ⾡䛻䜘䜚䚸ᚤ⣽Ꮝ䜢᭷䛩䜛ேᕤ㦵⾲㠃䜢ᙧᡂ䛧䚸᭷ᐖ⣽⳦䛾౵ධ䜢ᢚ䛘䛴䛴䚸㦵ᙧᡂ⣽⬊䛾ᑟධ䜢ಁ㐍䛷䛝䜛䚸ᶵ⬟ᛶᵓ㐀䛾ᐇ⌧䜢┠ᣦ䛧䛯䚹௨ୖ䛾ඹྠ◊✲䛻䜘䜚ᚓ䜙䜜䛯㐃ᦠᡂᯝ䛾୍㒊䛿䚸ᮏ◊✲ᡤ䛜୺ദ䛧䛯䠎ᅇ䛾䛂⁐ᑕ䞉㐀ᙧ◊✲㞟఍䛃䛻䛚䛔䛶බ㛤䛥䜜䚸Ẹ㛫௻ᴗ䛺䛹Ꮫእ䛛䜙⣙ 100 ྡ䛾⫈ㅮ⪅䜢㏄䛘䚸άⓎ䛺ウㄽ䛜⾜䜟䜜䛯䚹ከᩘ䛾◊✲⪅䛺䜙䜃䛻ᢏ⾡⪅䛛䜙㧗䛔⯆࿡㛵ᚰ䜢㞟䜑䚸ᙜヱศ㔝䛻䛚䛡䜛ඹྠ◊✲䝁䝭䝳䝙䝔䜱䞊䛾᭦䛺䜛ᣑ኱䛻䜒䛴䛺䛜䜛⤖ᯝ䛜ᚓ䜙䜜䛯䚹

−1−

−2−

ᾮ┦ྜᡂἲ䜢฼⏝䛧䛯ⓑ㔠䝘䝜⢏Ꮚ/䜹䞊䝪䞁䝘䝜䝏䝳䞊䝤/䜹䞊䝪䞁䝨䞊䝟䞊」ྜయ䛾ྜᡂᮾி⌮⛉኱ᏛᕤᏛ㒊 ⏣୰ඃᐇࠊ᱓㔝₶ᮾி⌮⛉኱Ꮫ⥲ྜ໬Ꮫ◊✲⛉ ᮌᓥ໷ᙪ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ ᱒ཎ⪽⚽1. ┠ⓗ࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈ㸦CNTs㸧࡜ࡣࠊࢢࣛࣇ࢙ࣥࢩ࣮ࢺࢆቨ㠃࡜ࡍࡿ෇⟄ᙧ≧ࡢࢼࣀࢧ࢖ࢬⅣ⣲ᮦᩱ࡛࠶ࡿࠋⅣ⣲ࡢࡳ࡛ᵓᡂࡉࢀࡿࡓࡵࠊ⎔ቃ㐺ྜᛶࡀ㧗ࡃࠊ㍍㔞࠿ࡘᶵᲔⓗᙉᗘ࡟ඃࢀ࡚࠸ࡿࡇ࡜࡟ຍ࠼ࠊ
ቨ㠃✚ᒙᩘࡸࠊ࢝࢖ࣛࣜࢸ࢕ࠊ෇⟄Ꮝᚄࡸ࢔ࢫ࣌ࢡࢺẚࠊ࠶ࡿ࠸ࡣ㧗ḟᵓ㐀㸦㓄ྥᛶ㸧ࡢ㐪࠸࡟㉳ᅉࡋ࡚ࡑࡢ≀ᛶ࡟≉␗࡞ከᵝᛶࢆ᭷ࡍࡿࡇ࡜࠿ࡽࠊ㟁ụࡸࢭࣥࢧ࣮ࠊ⾲♧ࢹࣂ࢖ࢫࠊ⮬ື㌴ࠊ⯟✵ᶵ࠿ࡽ་⒪࡟
⮳ࡿᖜᗈ࠸ศ㔝࡛ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋCNTs ࡢྜᡂ࡟ࡣ୍⯡ⓗ࡟࢔࣮ࢡᨺ㟁ࠊ࣮ࣞࢨ࣮⵨ⓎࠊCVDἲ࡞࡝ࡢẼ┦ἲࡀ฼⏝ࡉࢀ࡚࠸ࡿࡀࠊ᭱㏆ࠊᾮ┦࠿ࡽ CNTs ࢆ๰ࡾฟࡍᡭἲࠊࡍ࡞ࢃࡕࠊ
ࠕ᭷ᶵ⁐፹୰࡟
ᇶᯈࢆᾐₕࡉࡏ࡚ࡇࢀࢆ᢬ᢠຍ⇕ࡍࡿࠖ࡜࠸࠺ࠊᴟࡵ࡚⡆༢࠿ࡘᏳ౯࡞ᡭἲࡀᮾி⌮⛉኱Ꮫࡢ᱓㔝ࡽ࡟ࡼࡗ࡚⪃᱌ࡉࢀࡓࠋ1-3㸧ᾮ┦ྜᡂἲࡢ᭱኱ࡢ㨩ຊࡣࠊⅣ⣲※ࡸゐ፹๓㥑యࠊ」ྜᮦᩱྜᡂࡢࡓࡵࡢྛ✀ῧຍ๣ࡢ⤌ྜࡏ࡟ᑐࡍࡿ㑅ᢥᛶࡢᗈࡉ࡛࠶ࡾࠊᐇ㝿ࠊ᱓㔝ࡽࡣᾮ┦ྜᡂἲࡢ฼⏝࡟ࡼࡾࠊࡇࢀࡲ࡛࡟㢮ࢆぢ࡞࠸ࠊ౛࠼ࡤࢲ࢖ࣖᆺ⢏Ꮚෆໟ CNTs ࡸከᒙ✚ᒙ CNTs ࢔ࣞ࢖ࡢࡼ࠺࡞ᵝࠎ࡞᪂つᮦᩱࡢྜᡂ࡟⮳ࡗ࡚࠸ࡿࠋຍ࠼࡚᭱㏆࡛ࡣࠊ࣮࣮࢝࣎ࣥ࣌ࣃ࣮㸦CP㸧ᇶᯈୖ࡟┤᥋ࠊCNTs ࢆࡣࡌࡵ࡜ࡍࡿ࣮࢝࣎ࣥࢼࣀᮦᩱ㸦CNMs㸧
ࢆ⏕ᡂࡉࡏࡓ඲࣮࢝࣎ࣥࢼࣀ」ྜయࡢ๰〇࡟ࡶᡂຌࡋࡓࠋ඲࣮࢝࣎ࣥࢼࣀ」ྜయࡣࠊ㧗࠸ẚ⾲㠃✚ࢆලഛࡋࠊ࠿ࡘ㍍㔞࡛໬ᏛⓗᏳᐃᛶ࡟ඃࢀࡓᑟ㟁ᮦᩱ࡜ࡋ࡚ࠊ≉࡟㟁ụࡢ㟁ᴟࡸ㟁ᴟゐ፹⏝ࡢᢸయ࡬ࡢᛂ⏝࡟࠾࠸࡚ࡑࡢ฼ⅬࢆⓎ᥹ࡍࡿࡶࡢ࡜ᮇᚅ࡛ࡁࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊᅛయ㧗ศᏊᙧ⇞ᩱ㟁ụࡢ㟁ᴟゐ፹࡜ࡋ࡚ࡢᛂ⏝ࢆど㔝࡟ධࢀࠊᇶᯈ࡜ࡋ࡚ CPࠊ࣮࢝࣎ࣥ※࡜ࡋ࡚࢚ࢱࣀ࣮ࣝࠊCNTs ᡂ㛗ゐ፹ࡢ๓㥑య࡜ࡋ࡚࢔ࢭ
ࢳࣝ࢔ࢭࢺࢼࢺࢥࣂࣝࢺ㸦Co(acac)3㸧ࢆࡑࢀࡒࢀ⏝࠸ࡓ඲࣮࢝࣎ࣥࢼࣀ」ྜయࡢᾮ┦ྜᡂ㐣⛬࡟࠾࠸࡚ࠊࡉ
ࡽ࡟࢔ࢭࢳࣝ࢔ࢭࢺࢼࢺⓑ㔠㸦Pt(acac)2㸧ࢆ௓ᅾࡉࡏࡿࡇ࡜࡛ࠊᾮ┦ୗ࡟࠾ࡅࡿ Pt/CNMs/CP 」ྜయࡢ୍ẁྜᡂࢆヨࡳࠊࡑࡢ㟁Ẽ໬Ꮫⓗ࡞≉ᛶࢆࢧ࢖ࢡࣜࢵࢡ࣎ࣝࢱ࣓ࣥࢺ࣮ࣜ㸦CV㸧ἲ࡟ࡼࡗ࡚ホ౯ࡋࡓࠋ
2. ◊✲᪉ἲ
2.1. ᾮ┦୍ẁྜᡂ㻌
Ⅳ⣲※ࡢ࢚ࢱࣀ࣮ࣝ࡟ࠊCNT ᡂ㛗ゐ፹๓㥑య࡜ࡋ࡚࢔ࢭࢳࣝ࢔ࢭࢺࢼࢺࢥࣂࣝࢺ㸦Co(acac)3㸧ࠊⓑ㔠๓㥑య࡜ࡋ࡚࢔ࢭࢳࣝ࢔ࢭࢺࢼࢺⓑ㔠
㸦Pt(acac)2㸧ࢆ⁐࠿ࡍࡇ࡜࡛⁐፹ࢆㄪᩚࡋࡓࠋᕷ㈍ࡢ CP ࢆ 525 mm2 ࡟ษࡾฟࡋ࡚㟁ᴟ࣍ࣝࢲ࣮࡟
ᅛᐃࡋࠊㄪᩚࡋࡓ⁐፹୰࡟᏶඲࡟ᾐₕࡋࡓࡢࡕ࡟
┤ὶࢆ༳ຍࡍࡿࡇ࡜࡛ CP ᇶᯈࢆ᢬ᢠຍ⇕ࡋࡓࠋᇶᯈࡢ⾲㠃 ᗘࡣ㉥እᨺᑕ ᗘィ࡟ࡼࡾ ᐃࡋࠊࡇࡢ್ࡀ 750 °C㸦ྜᡂ ᗘ㸧࡟㐩ࡋࡓ᫬㛫ࢆ㛤ጞ᫬࡜ࡋ࡚ࠊCP ࡟༳ຍࡍࡿ㟁ᅽࢆㄪ⠇ࡋ࡞ࡀࡽ Fig. 1. Schematic view of reacting system of one-step
750 °C ࡢ ᗘࢆ 15 ศ㛫㸦ྜᡂ᫬㛫㸧⥔ᣢࡍࡿࡇ liquid-phase synthesis.
࡜࡛ࠊCP ୖ࡟ CNMs ࢆྜᡂࡋࡓࠋ
㸦Fig. 1㸧⏕ᡂ≀ࡢ㧗ḟᵓ㐀ࡣࠊ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾㸦SEM㸧࡟ࡼࡾほᐹࡋࠊ⏕ᡂ≀ࡢ୰✵ᵓ㐀ࡸࢢࣛࣇ࢓࢖ࢺᒙ
㛫ࠊⓑ㔠⢏Ꮚࡢᢸᣢ≧ែࡣ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾㸦TEM㸧࡟ࡼࡗ࡚ほᐹࡋࡓࠋࡉࡽ࡟㢧ᚤ࣮ࣞࢨ࣮࣐ࣛࣥศග
ᐃ࡟ࡼࡾ⏕ᡂ≀ࡢ⤖ᬗᛶࢆホ౯ࡋࡓࠋ2.2. 㟁Ẽ໬Ꮫ ᐃ㻌ᚓࡽࢀࡓヨᩱࡣࠊ㓟ฎ⌮࡟ࡼࡾṧ␃ࡋ࡚࠸ࡿ CNTs ᡂ㛗ゐ፹ࢆ⁐ゎ㝖ཤࡋ࡚஝⇱ࡉࡏࡓࡢࡕ࡟ CV ᐃ࡟౪ࡋࡓࠋࡇࡢ㝿ࠊ㟁ゎᾮ࡟ࡣ 0.1 M HClO4ࠊཧ↷ᴟ࡜ᑐᴟ࡟ࡣࡑࢀࡒࢀࠊྍ㏫Ỉ⣲㟁ᴟ㸦RHE㸧࠾ࡼࡧⓑ㔠⥺ࢆ⏝࠸ࠊヨᩱࡢ㟁Ẽ໬Ꮫⓗάᛶ㠃✚㸦ECA㸧ࡣࠊᚓࡽࢀࡓ CV ᭤⥺ࡢỈ⣲⬺╔ࣆ࣮ࢡ࠿ࡽ⟬ฟࡋࡓỈ⣲⬺╔㟁Ⲵ㔞࠿ࡽࠊ௨ୗࡢᘧࢆ⏝࠸࡚ぢ✚ࡶࡗࡓࠋ
ECA = ‫ ݀ݍ‬/ ‫ݏ݀ݍ‬ࡇࡇ࡛ࠊqd ࡣỈ⣲⬺╔㟁Ⲵ㔞ࠊqds ࡣⓑ㔠ࡢ༢఩άᛶ㠃✚࠶ࡓࡾࡢỈ⣲⬺╔㟁Ⲵ㔞㸦= 210 ȝCcm-2㸧࡛࠶ࡿࠋ−3−

3. ⤖ᯝ
3.1. ⏕ᡂ≀䛾ᙧែホ౯㻌Fig. 2 ࡟ Pt(acac)2 ࢆῧຍࡋࡓ⁐፹ࢆ⏝࠸࡚ᾮ┦୍ẁྜᡂἲ࡟ࡼࡾస〇ࡋࡓヨᩱࡢ SEM ⏬ീࢆ♧ࡍࠋCP ࢆᵓᡂࡍࡿ࣮࢝࣎ࣥ⧄⥔࡟ᑐࡋ࡚ CNTs ᵝࡢ⏕ᡂ≀ࡀࢡࣔࡢᕢ≧࡟⤡ࡳ௜࠸࡚࠸ࡿᵝᏊࡀ☜ㄆࡉࢀࡓࠋࡇࢀࡣⓑ㔠๓㥑య࡛࠶ࡿ Pt(acac)2 ࢆຍ࠼ࡎ࡟ྠ᮲௳࡛స〇ࡋࡓሙྜ࡜ྠᵝࡢ⤖ᯝ࡛࠶ࡿࠋ
୍᪉ࠊTEM ⏬ീ࡟ࡼࡿ࡜ࠊ⏕ᡂ≀࡟ࡣ┤ᚄ 0.7㹼2.0 nm ࡢ༢ᒙࢼࣀࢳ࣮ࣗࣈ㸦Fig. 3(a)㸧࡟ຍ࠼࡚ࠊ┤ᚄ 50
nm ⛬ᗘࡢከᒙࢼࣀࢳ࣮ࣗࣈࡀᏑᅾࡋࠊࡇࡢ⾲㠃࡟ࢼࣀ⢏Ꮚࡀᢸᣢࡉࢀ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ
㸦Fig. 3(b)㸧
Pt(acac)2 ࢆῧຍࡋࡓ⁐፹࠾ࡼࡧࡇࢀࢆῧຍࡋ࡞
࠿ࡗࡓ⁐፹୰࡛స〇ࡋࡓヨᩱࡢ࣐ࣛࣥศග ᐃࢆ⾜࠸ࠊᚓࡽࢀࡓࢫ࣌ࢡࢺࣝࢆẚ㍑ࡋࡓ࡜ࡇࢁࠊ
1590 cm-1 ௜㏆࡟ࢢࣛࣇ࢓࢖ࢺ࡟࠾ࡅࡿⅣ⣲ཎᏊࡢ 6 ဨ⎔ᵓ㐀࡟⏤᮶ࡍࡿ᣺ື࡟ᖐᒓࡉࢀࡿ G-band
ࡀࠊ1350 cm-1 ௜㏆࡟ࢢࣛࣇ࢓࢖ࢺࡢḞ㝗ᵓ㐀࡟⏤᮶ࡍࡿ᣺ື࡟ᖐᒓࡉࢀࡿ D-band ࡀほ ࡉࢀࡓࠋG-band ࡜ D-band ࡢᙉᗘẚ㸦IG/ID㸧ࡣࠊPt(acac)2 ࢆῧຍࡋࡓ⣔࡛ 2.48ࠊῧຍࡋ࡞࠿ࡗࡓ⣔࡛ 1.37 ࡛࠶
Fig. 2. SEM images of CNMs/CP composites preparedin ethanol solvent mixed with Co(acac)3 and Pt(acac)2.
ࡾ ࠊ Pt(acac)2 ࢆ ῧ ຍ ࡋ ࡓ ሙ ྜ ࡟ ⤖ ᬗ ᛶ ࡢ Ⰻ ࠸
CNMs ⏕ᡂ≀ࡀᚓࡽࢀࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ
ࡲࡓࠊ࠸ࡎࢀࡢࢫ࣌ࢡࢺࣝ࡟ࡶ SWCNTs ࡢ┤ᚄ࡟౫Ꮡࡍࡿ᣺ື࣮ࣔࢻ࡛࠶ࡿ RBM ࡢࣆ࣮ࢡ㸦100㹼300
cm-1㸧ࡀ⌧ࢀ࡚࠸ࡓࡇ࡜࠿ࡽࠊTEM ほᐹ⤖ᯝ࡜ྜࢃࡏ࡚௒ᅇస〇ࡋࡓ」ྜయ࡟ SWCNTs ࡀྵࡲࢀ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ
3.2. 㟁Ẽ໬Ꮫⓗ≉ᛶ㻌Pt(acac)2 ࢆῧຍࡋࡓ⁐፹୰࡛స〇ࡋࡓ CNMs/CP」ྜయࡢ CV ᐃࢆ N2 㣬࿴ୗࡢ HClO4 Ỉ⁐ᾮ୰࡛⾜ࡗࡓ࡜ࡇࢁࠊⓑ㔠⾲㠃࡟࠾ࡅࡿỈ⣲ࡢ྾⬺╔࡟⏤᮶ࡍࡿ㓟໬㑏ඖࣆ࣮ࢡࡣほᐹࡉࢀ࡞࠿ࡗࡓ㸦Fig.
4(a)㸧
ࠋࡑࡇ࡛ 0.05㹼1.5 V ࡢ⠊ᅖ࡛㟁Ẽ໬Ꮫⓗ㓟໬ฎ⌮ࢆ⧞ࡾ㏉ࡋ⾜ࡗࡓ࡜ࡇࢁࠊ0㹼0.4 V ࡢ⠊ᅖ࡟ࠊⓑ㔠⾲㠃ࡢỈ⣲྾⬺╔࡟≉ᚩⓗ࡞㓟໬㑏ඖࣆ࣮ࢡࡀ⌧ࢀ㸦Fig. 4(b)㸧
ࠊ௒ᅇᚓࡽࢀࡓ CNMs/CP 」ྜయ
࡟ⓑ㔠⢏Ꮚࡀᢸᣢࡉࢀ࡚࠸ࡿࡇ࡜ࡀ♧ࡉࢀࠊTEM⏬ീ࡟ぢࡽࢀࡓࢼࣀ⢏Ꮚࡀࡇࢀ࡟┦ᙜࡋ࡚࠸ࡿࡶ
ࡢ࡜᥎ᐹࡉࢀࡓࠋ㓟໬ฎ⌮ᚋ࡟Ỉ⣲྾⬺╔ࣆ࣮ࢡࡀ⌧ࢀࡓࡢࡣࠊྜᡂ᫬࡟ⓑ㔠⢏Ꮚࡢ࿘ࡾࢆそࡗ࡚࠸ࡓẚ㍑ⓗ㓟໬ࡉࢀࡸࡍ࠸࢔ࣔࣝࣇ࢓ࢫ࣮࢝࣎ࣥࡀ㟁Ẽ໬Ꮫⓗ㓟໬ฎ⌮࡟ࡼࡾ㝖ཤࡉࢀࡓࡇ࡜࡛ࠊⓑ㔠⢏Ꮚࡢ㟁Ẽ໬Ꮫⓗ࡟άᛶ࡞⾲㠃ࡀ⌧ࢀࡓࡓࡵ࡛࠶ࡿ
࡜⪃࠼ࡽࢀࡿࠋ࡞࠾ࠊ㟁Ẽ໬Ꮫⓗ㓟໬ฎ⌮ᚋࡢỈ⣲⬺╔ࣆ࣮ࢡ࠿ࡽỈ⣲⬺╔㟁Ⲵ㔞ࢆ⟬ฟࡋ ECA ࢆồࡵࡓ࡜ࡇࢁ 13.6 cm2 ࡜ぢ✚ࡶࡽࢀࡓࠋ

Fig. 3. TEM images of CNMs/CP composites preparedin ethanol solvent mixed with Co(acac)3 and Pt(acac)2.

Fig. 4. Comparison of cyclic voltammograms of
CNMs/CP composites (prepared in ethanol solvent
mixed with Co(acac)3 and Pt(acac)2) measured in HClO4
aq. solution (a) before and (b) after the electrochemical
oxidation treatment.

ཧ⪃ᩥ⊩1) K. Yamagiwa, T. Kikitsu, S. Yamashita, and J. Kuwano, Jpn. J. Appl. Phys., 50, 01BJ11, 2011.
2) K. Yamagiwa, Y. Ayato and J. Kuwano, Jpn. J. Appl. Phys., 51, 06FD19, 2012.
3) K. Yamagiwa and J. Kuwano, Electrical Phenomena at Interfaces and Biointerfaces: Fundamentals and Applications in
Nano-, Bio-, and Environmental Sciences, ed. H. Ohshima, pp.407-422, Wiley, New York, 2012.
㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࣉࣟࢭࢫ◊✲ࢭࣥࢱ࣮/ࢼࣀ࣭࣐࢖ࢡࣟᵓ㐀ไᚚࣉࣟࢭࢫᏛศ㔝㸧−4−ᾏὒ⎔ቃ࡛ࡢ⪏ஂᛶྥୖࢆ┠ᣦࡋࡓ᪂つ⁐ᑕࣉࣟࢭࢫࡢ☜❧⌰⌫኱ᏛᕤᏛ㒊 ୰㔝 ᩔ
኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ  ᱒ཎ ⪽⚽1㸬┠ⓗ㔠ᒓ⁐ᑕࡣ⪏㣗ᛶ⓶⭷࡜ࡋ࡚ඃࢀࡓ≉ᛶࢆ♧ࡋከࡃࡢ኱ᆺ㗰ᵓ㐀≀࡟㐺⏝ࡉࢀ࡚࠸ࡿࡀ㸪ࡑࡢ⪏ஂᛶࡸ⭉㣗㔞ࡢ⤒ᖺኚ໬࡟ࡘ࠸࡚༑ศ࡟ㄪᰝ☜ㄆࡋࡓ౛ࡣᑡ࡞࠸㸬ࡲࡓࠊᾏὒ⎔ቃ࡟࠾ࡅࡿ᪋ᕤ஦౛ࡣᑡ࡞ࡃ㸪ᾏὒ⎔ቃ࡟࠾ࡅࡿ㜵㣗ἲ࡜ࡋ࡚ࡢ⁐ᑕ᪉ἲࡀᗈࡃᬑཬࡋ࡚࠸࡞࠸ࡢࡀ⌧≧࡛࠶ࡿ㸬ࡇࢀࡲ࡛࡟Zn-Al⣔⁐ᑕ㗰ࡢ㜵㗵ᛶ⬟࡟ࡘ࠸࡚㸪኱Ẽᭀ㟢ヨ㦂ࡸຍ㏿⭉㣗ヨ㦂࠾ࡼࡧ㟁Ẽ໬Ꮫⓗᡭἲࢆ⏝࠸࡚ホ౯ࢆ⾜ࡗ࡚ࡁࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪㔠ᒓ⁐ᑕ㗰ࡣ⪏ஂᛶࡀⰋዲ࡛࠶ࡿࡓࡵヨ㦂⤖ᯝࡀ᫂☜࡛࡞࠸ሙྜࡀከࡃ㸪ࡉࡽ࡟㛗ᮇⓗ࠿ࡘ⥅⥆ⓗ࡞ㄪᰝࢆせࡍࡿ㸬ࡇࡢࡓࡵ㸪ࡼࡾ▷࠸᫬㛫࡛ᐇ⎔ቃ࡟㏆࠸⤖ᯝ࡜ᡂࡾ࠺ࡿホ౯ἲࡀᚲせ࡜࡞ࡿ㸬ᮏ◊✲࡛ࡣ㸪㔠ᒓࡸࢭ࣑ࣛࢵࢡࢫࡢࢼࣀ⢏Ꮚࢆ⏝࠸ࡓ᪂ࡋ࠸⁐ᑕࣉࣟࢭࢫࢆά⏝ࡋ㸪ࡣࡌࡵ࡟⦓ᐦ࡞⁐ᑕ⿕そᮦᩱࢆస〇ࡍࡿ㸬ࡑࡢస〇ࡋࡓ⁐ᑕ⓶⭷࡟ࡘ࠸࡚㸪⿕そᒙࡢ≉ᛶࡸᾏὒ⎔ቃࢆ᝿ᐃࡋࡓ⭉㣗ࡢ࣓࢝ࢽࢬ
࣒࡟ࡘ࠸࡚᫂ࡽ࠿࡟ࡍࡿ㸬ࡲࡓ㸪▷ᮇ㛫࡛ᐇ⎔ቃ࡟㏆࠸⤖ᯝ࡜࡞ࡿ⭉㣗ホ౯᪉ἲ࡟ࡘ࠸᳨࡚ウࡋ㸪᪂つ⁐ᑕࣉࣟࢭࢫࡢ୍㒊ࢆᵓ⠏ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿ㸬ᮏᖺᗘࡣ㸪㔠ᒓ⢊యᚤ⢏Ꮚࢆࣉࣛࢬ࣐⁐ᑕ⿦⨨࡟Ᏻᐃࡋ࡚౪⤥ࡍࡿࡓࡵ࡟㸪㔠ᒓᚤ⢏Ꮚࢆྵ᭷ࡍࡿᚤ⢏Ꮚࢫ࣮࣮ࣛࣜ࣌ࢫࢺࡢస〇᪉ἲ࡟ࡘ࠸᳨࡚ウࡋࡓ㸬2㸬◊✲᪉ἲ ᚤ⢏Ꮚࢫ࣮࣮ࣛࣜ࣌ࢫࢺࡢస〇࡟ࡣள㖄ᚤ⢊ᮎ࡜࢔ࢡࣜࣝ⣔㧗ศᏊࡢᾮయᶞ⬡ࢆ౑⏝ࡋࡓ㸬ள㖄ᚤ⢊ᮎࡢᖹᆒ⢏ᚄࡣ7μm࡛࠶ࡿ㸬⾲1࡟స〇᮲௳ࢆ♧ࡍ㸬ᚤ⢊ᮎ࡜ᾮయᶞ⬡ࢆయ✚⋡50Vol㸣࡜ࡋ࡚኱Ẽ୰࡟࡚ΰྜࡋ࡚㸪ᐜ✚
500mlࡢ࣏ࢵࢺ࡟ᐦ㛢ࡋࡓ㸬ࡇࢀࢆ⮬㌿බ㌿ᘧᨩᢾ⬺Ἳ⿦⨨࡟ࢭࢵࢺࡋ㧗⢓ᗘࢫ࣮࣮ࣛࣜ࣌ࢫࢺࢆస〇ࡋࡓ㸬ᅇ㌿
ᩘ10s-1ࡢබ㌿࡟ࡼࡾΰྜᾮ࡟㐲ᚰຊࡀാࡃࡇ࡜࡛ẚ㔜ࡢᕪ࡟ࡼࡿ⬺Ἳࡀྍ⬟࡜࡞ࡿ㸬ࡉࡽ࡟㸪ᅇ㌿ᩘ5s-1ࡢ⮬㌿࡟ࡼࡾ㔠ᒓᚤ⢏Ꮚ࡜ᾮయᶞ⬡ࡀΰྜࡉࢀࡿ2㸧㸬ࡲࡓ㸪㔠ᒓᚤ⢏Ꮚࢆศᩓࡉࡏࡿࡓࡵ࡟┤ᚄ5mmࡢ࢔࣑ࣝࢼ࣮࣎ࣝᩘಶ
ࢆᐦ㛢࣏ࢵࢺ࡟ᢞධࡋࡓ㸬
ᅗ1࡟ཧ⪃࡜ࡋ࡚ࣉࣛࢬ࣐⁐ᑕ⿦⨨ࢆ♧ࡍ㸬ᚤ⢏Ꮚࢫࣛᅗ 1 ࣉࣛࢬ࣐⁐ᑕ⿦⨨࣮ࣜࢆࢫ࣮ࣛࣜ౪⤥⏝ࢩࣜࣥࢪ࡟ὀධࡋ㸪ࢩࣜࣥࢪࡢື
స࢞ࢫ࡜࢟ࣕࣜ࢔࢞ࢫࢆไᚚࡋ࡚ࣉࣛࢬ࣐⁐ᑕ࢞ࣥ࡬ࢫࣉ࣮ࣞࡍࡿ㸬⁐ᑕࡍࡿᇶᯈ࡟ࡣ෭ᘏ㗰ᯈSPCC-SB㸦50
50mm㸧ࢆ౑⏝ࡍࡿ㸬

−5−⾲1 ᚤ⢏Ꮚࢫ࣮࣮ࣛࣜ࣌ࢫࢺࡢస〇ᖹᆒ⢏ᚄ㸦μm㸧ศᩓ㔞(g㸧

Vol%

Znᚤ⢊ᮎ

7

228

50

࢔ࢡࣜࣝ⣔ᾮయᶞ⬡

-

29.5

50

3㸬⤖ᯝ
6

50Vol%ࡢள㖄ᚤ⢊ᮎ࡜ᾮయᶞ⬡ࢆΰྜࡋ㸪⮬㌿බ㌿ᘧ

10ᨩᢾ⬺Ἳ⿦⨨ࢆ⏝࠸࡚ᚤ⢏Ꮚࢫ࣮ࣛࣜࢆస〇ࡋࡓ㸬ΰྜ

10᫬㛫ࡣ300s࡛࠶ࡿ㸬ᚓࡽࢀࡓࢫ࣮ࣛࣜࡢ⢓ᗘ࡟ࡘ࠸࡚☜ㄆࡋࡓ࡜ࡇࢁ㸪ࡏࢇ᩿ຊࡀቑຍࡍࡿ࡜ᅛయࡢࡼ࠺࡞᢬ᢠ
ຊࡀࡳࡽࢀ㸪࠸ࢃࡺࡿࢲ࢖ࣛࢱࣥࢩ࣮ὶయࡀⓎ⏕ࡋࡓ㸬ࡑࡇ࡛㸪ள㖄ᚤ⢊ᮎ50gࢆ㏣ຍࡋ࡚య✚⋡ࢆኚ໬ࡉࡏ࡚⮬㌿බ㌿ᘧᨩᢾ⬺Ἳ⿦⨨࡟ࢭࢵࢺࡋࡓ㸬ΰྜ᫬㛫࡟ࡘ࠸࡚

Current density, PA/cm

2

5

ࡶ300sࡢฎ⌮ࢆᩘᅇ࡟ศࡅ࡚ᐇ᪋ࡋ㸪ࡑࡢࡓࡧ࡟ࢫࣛࣜ

4

10

Zn⁐ᑕ㗰
3

10

2

10

Zn䜑䛳䛝

1

10

0

10

-1

10

࣮ࡢ⢓ᛶ࡟ࡘ࠸࡚☜ㄆࡋࡓ㸬ள㖄ᚤ⢊ᮎࡢయ✚⋡ࢆቑຍ-2

10ࡉࡏ࡚㸪ࡉࡽ࡟ΰྜ᫬㛫300sࡢฎ⌮ࢆ3ᅇ⛬ᗘࡲ࡛ከࡃࡍ

-2-1ࡿ࡜㸪ᚤ⢏Ꮚࢫ࣮ࣛࣜ࡟ࢳࢡࢯᛶࡀࡳࡽࢀࡓ㸬ࢳࢡࢯᛶ

-0.5

0

0.5

Potential, V vs SSE࡜ࡣᨩᢾࡢࡼ࠺࡞ࡏࢇ᩿ຊࢆ௜ຍࡋࡓሙྜ࡟⢓ᗘࡣపୗFig.2 Zn ⁐ᑕ㗰ࡢศᴟ≉ᛶࡋ㸪ࡏࢇ᩿ຊࢆ㝖ཤࡍࡿ࡜⢓ᛶࡀቑຍࡍࡿࡼ࠺࡞ࣞ࢜ࣟ
ࢪ࣮≉ᛶ࡛࠶ࡿ㸬ࡇࢀ࡟ࡼࡾள㖄ᚤ⢏Ꮚࡣᾮయᶞ⬡୰࡛඘ศ࡟ᆒ୍ศᩓࡋ࡚࠸ࡿྍ⬟ᛶࡀ☜ㄆࡉࢀࡓ㸬௨ୖࡢࡼ࠺࡞㧗⢓ᗘࢫ࣮࣮ࣛࣜ࣌ࢫࢺࢆ
⏝࠸࡚㸪⁐ᑕ⿦⨨࡬ࡢᏳᐃ౪⤥ࢆ┠ᣦࡋᚤ䖃⣽࡞⁐ᑕ⓶⭷ࢆ௒ᚋస〇ࡋࡓ࠸㸬௒ᅇ㸪ࢳࢡࢯᛶࢆ᭷ࡍࡿ㧗⢓ᗘࢫ࣮ࣛࣜ
࣮࣌ࢫࢺࢆస〇ࡍࡿࡓࡵ࡟ᇶ♏ⓗ࡞ᐇ㦂ࢆ

䖃䚷Zn
䕦䚷Al
䕔䚷Zn㻡(OH)㻤Cl2䞉H2O

䖃䖃Intensity (a.u)

4㸬௒ᚋࡢணᐃ

ᭀ㟢ᮇ㛫䠖㻝㻜㻜᪥

䕔

Cl↓

䖃

䕔

䖃
䖃

䖃
䖃
䖃

Cl᭷

⾜ࡗࡓ㸬௒ᚋࡣள㖄ᚤ⢊ᮎ࡜ᾮయᶞ⬡ࡢయึᮇᮦ✚ẚࡸΰྜ᫬㛫ࡢ᭱㐺᮲௳࡟ࡘ࠸࡚ㄪᰝࡋ
࡚㧗⢓ᗘᚤ⢏Ꮚࢫ࣮ࣛࣜࢆస〇ࡍࡿ㸬ࡇࢀ

Fig.3 Zn ⁐ᑕ㗰ࡢ X ⥺ᅇᢡࡽࡢ㧗⢓ᗘᚤ⢏Ꮚࢫ࣮ࣛࣜࢆ⏝࠸࡚⦓ᐦ࡞
⁐ᑕ⓶⭷ࢆస〇ࡢࡓࡵࡢྛ✀ᙳ㡪ᅉᏊ࠾ࡼࡧᨭ㓄ⓗᅉᏊࡢㄪᰝࢆᐇ᪋ࡍࡿ㸬ࡲࡓ㸪ᒇෆእಁ㐍ᭀ㟢ヨ㦂࡞࡝ࢆ⏝࠸࡚ᚤ⣽⁐ᑕ⓶⭷స〇ࣉࣟࢭࢫࡢ᭷ຠᛶ࡟ࡘ࠸᳨࡚ウࡍࡿ㸬
6㸬ཧ⪃ᩥ⊩
1㸧Soshu Kirihara㸸WELDING TECHNOLOGZY㸬59㸪2011㸪90-95㸬
2㸧᱒ཎ⪽⚽ 㸸⁐ᑕ㸪Vol.50㸪No.3㸪2013㸪136-139㸬㸦ඹྠ◊✲ศ㔝㸸ࢼࣀ࣭࣐࢖ࢡࣟᵓ㐀ไᚚࣉࣟࢭࢫᏛศ㔝㸧−6−࣐࢖ࢡࣟග㐀ᙧἲࢆ⏝࠸ࡓ㔠ᒓ࠾ࡼࡧࢭ࣑ࣛࢵࢡࢫ〇ᚤ⣽ᵓ㐀ࡢᙧᡂࢫ࣐࣮ࢺࣉࣟࢭࢫ࡟ࡼࡿࢭ࣑ࣛࢵࢡࢫࡢࢼࣀ࣭࣐࢖ࢡࣟᚤ⣽ᵓ㐀ไᚚ

7L2 ࢼࣀࢡࣜࢫࢱࣝࢥ࣮ࢸ࢕ࣥࢢ࠾ࡼࡧ 7L2 ࢼࣀࢡࣜࢫࢱࣝ㞟✚ᆺ⢏Ꮚࡢࣁࣟࢤࣥ㓟ࣇ࣮ࣜྜᡂ
⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ  ቑ⏣ ె୔኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ  ᱒ཎ ⪽⚽㸯㸬ࡣࡌࡵ࡟
Ỉ⁐ᾮࣉࣟࢭࢫࢆά⏝ࡋࡓࢭ࣑ࣛࢵࢡࢫྜᡂࡢ㡿ᇦࡀ኱ࡁࡃ㐍ᒎࡋ࡚࠸ࡿࠋᾮ┦ᯒฟἲ࡟ࡼࡿ࢔ࢼࢱ࣮ࢮᆺ 7L2 ࡢ㛤Ⓨ࡟࠾࠸࡚ࡣࠊ㔪≧⤖ᬗ㞟✚ᆺ⭷>@ࡸࠊ㔪≧⤖ᬗ㞟✚ᆺ⢏
Ꮚ>@ࡢྜᡂ➼ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊࣇࢵ໬ࢳࢱࣥ㓟࢔ࣥࣔࢽ࣒࢘࡜࣍࢘㓟ࢆ⏝࠸ࡓᾮ┦ᯒฟἲ࡟࠾࠸࡚ࡣࠊ࣍࢘㓟ࡢ౑⏝ࡀᚲせ࡜࡞ࡿ࡜࡜ࡶ࡟ࠊ7L2 ୰࡟ࣇࢵ⣲ࡀṧ␃ࡍࡿࠋᮏ◊✲࡛ࡣࠊࣇࢵ⣲➼ࡢࣁࣟࢤࣥ࠾ࡼࡧ㓟ࢆ⏝࠸࡞࠸ྜᡂࣉࣟࢭࢫࢆ㛤Ⓨࡋࠊࡇࢀࢆ⏝࠸
࡚ 7L2 ࢼࣀࢡࣜࢫࢱࣝࢥ࣮ࢸ࢕ࣥࢢ࠾ࡼࡧ 7L2 ࢼࣀࢡࣜࢫࢱࣝ㞟✚ᆺ⢏Ꮚࡢ㛤Ⓨࢆ⾜ࡗࡓࠋ㸰㸬7L2 ࡢࣁࣟࢤࣥ㓟ࣇ࣮ࣜྜᡂ>@ࢩࣗ࢘㓟ࢳࢱ࣒ࣥ࢝ࣜ࢘ J ࢆ Υࡢ⵨␃Ỉ P/ ࡟⁐ゎࡋࠊ࣏ࣜࣉࣟࣆࣞࣥ
〇ᐜჾ࡟࡚ Υ࡛  ᫬㛫ಖᣢࡍࡿࡇ࡜࡟ࡼࡾ 7L2 ⢏Ꮚࢆྜᡂࡋࡓࠋᘧ㸯࡟♧ࡍ཯ᛂ࡟ࡼ
ࡾࠊࢩࣗ࢘㓟ࢳࢱ࣒ࣥ࢝ࣜ࢘ࡀ +2 ࡜཯ᛂࡋࠊ7L2 ࡀᙧᡂࡍࡿࠋࡑࡢ㝿ࠊ.2+ࠊ+&2 ࡀᙧᡂࡍࡿࠋࡼࡾヲ⣽࡟ࡣࠊࢩࣗ࢘㓟ࢳࢱ࣒ࣥ࢝ࣜ࢘ࡀỈ࡟⁐ゎࡋࡓ㝿࡟ࠊ>7L2 &2 @࢖࢜ࣥࡀᙧᡂࡋࠊࡉࡽ࡟>7L22@࢖࢜ࣥ࡬࡜ኚᛶࡋࡓᚋࠊ7L2 ඵ㠃యࡢࣘࢽࢵࢺࡢᙧᡂࢆ㏻ࡋ
࡚ࠊ7L2 ⤖ᬗࡀᙧᡂࡉࢀࡿࠋᘧ㸯 ࢩࣗ࢘㓟ࢳࢱ࣒ࣥ࢝ࣜ࢘ࢆ⏝࠸ࡓ 7L2 ࡢᙧᡂ཯ᛂ
㸱㸬)72 ᇶᯈࡢ 7L2 ࢼࣀࢡࣜࢫࢱࣝࢥ࣮ࢸ࢕ࣥࢢ>@ࢩࣗ࢘㓟ࢳࢱ࣒ࣥ࢝ࣜ࢘ PRO/ ࢆ⁐ゎࡋࡓỈ⁐ᾮ୰࡟ࠊ)72 ᇶᯈ㸦ࣇࢵ⣲ࢻ࣮ࣉ㓟໬ࢫࢬከ⤖ᬗ⭷㸧ࢆࠊΥ࡟࡚  ᪥㛫ᾐₕࡋࠊỈ⁐ᾮ୰࡛ࡢ⤖ᬗᡂ㛗࡟ࡼࡾࠊ7L2 ࢼࣀࢡࣜࢫࢱࣝࢥ࣮ࢸ࢕ࣥࢢࢆᙧᡂࡋࡓࠋᅗ㸰ࡢᕥࡢ㡿ᇦ࡟ࠊ7L2 ࢼࣀࢡࣜࢫࢱࣝࢥ࣮ࢸ࢕
ࣥࢢࢆᙧᡂࡋ࡚࠾ࡾࠊྑഃࡢ )72 ᇶᯈ㡿ᇦ࡜ࡣࠊⰍࡢ㐪࠸ࡀぢࡽࢀࡿࠋ

−7−ᅗ㸯 )72 ᇶᯈୖࡢ 7L2 ࢼࣀࢡࣜࢫࢱࣝࢥ࣮ࢸ࢕ࣥࢢࠋ
㸦ྑ㸧)72 㡿ᇦࠋ㸦ᕥ㸧7L2 ࢼࣀࢡࣜࢫࢱࣝࢥ࣮ࢸ࢕ࣥࢢ㡿ᇦࠋᅗ㸰 ᕥᅗ㸸)72 ᇶᯈࡢ 6(0 ീࠋྑᅗ㸸)72 ᇶᯈୖࡢ 7L2 ࢼࣀࢡࣜࢫࢱࣝࢥ࣮ࢸ࢕ࣥࢢ
ࡢ 6(0 ീࠋᅗ㸰ᕥᅗࡢ )72 ᇶᯈࡢ 6(0 ീ࠿ࡽࡣࠊ
ᾐₕ๓ࡢ )72 ࡢከ⤖ᬗ㓟໬ࢫࢬ⾲㠃ࡀぢࡽࢀࡿࠋࢩࣗ࢘㓟ࢳࢱ࣒ࣥ࢝ࣜ࢘Ỉ⁐ᾮ୰࡛ࡢ⤖ᬗᡂ㛗࡟ࡼࡾࠊᅗ㸰ྑᅗ࡟ぢࡽࢀࡿࡼ࠺࡟ࠊ7L2
ࢼࣀࢡࣜࢫࢱࣝࡀᙧᡂࡉࢀࡓࠋ7L2 ࢼࣀࢡࣜࢫࢱࣝࡢࢧ࢖ࢬࡣࠊ࠾ࡼࡑ QP ⛬ᗘ࡜ぢ✚ࡶࡽࢀࡓࠋࡲࡓࠊ)72 ᇶᯈࡢ㓟໬ࢫࢬከ⤖ᬗࡢพฝࡀࠊ㧗పᕪ QP ⛬ᗘ࡛࠶ࡿࡇ࡜࠿
ࡽࠊ7L2 ࢼࣀࢡࣜࢫࢱࣝᒙࡢཌࡉࡣࠊ࠾ࡼࡑ QP ࡜ぢ✚ࡶࡽࢀࡓࠋ




−8−

)72 ᇶᯈୖࡢ 7L2 ࢼࣀࢡࣜࢫࢱࣝ
ࢥ࣮ࢸ࢕ࣥࢢࡢ 5DPDQ ࢫ࣌ࢡࢺࣝ࡜ࠊ
)72 ᇶᯈࡢ 5DPDQ ࢫ࣌ࢡࢺࣝࡢࢫ࣌ࢡ
ࢺࣝᕪࢆゎᯒࡋࡓ࡜ࡇࢁࠊ ࠾ࡼࡧ ࡟ࢥ࣮ࢸ࢕ࣥࢢᒙ⏤᮶࡜⪃࠼ࡽࢀࡿࣈ࣮ࣟࢻ࡞ࣆ࣮ࢡࡀほ ࡉࢀࡓࠋࡇ
ࢀࡽࡣࠊ7L2 ⢏Ꮚ㸦3㸧ࡢ 5DPDQ ࢫ࣌ࢡࢺࣝ࡟࠾ࡅࡿ $Jࠊ(J ࣆ࣮ࢡ࡟ᖐᒓ
ࡉࢀࠊࢥ࣮ࢸ࢕ࣥࢢᒙࡀ࢔ࢼࢱ࣮ࢮᆺ
7L2 ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ
ࡉࡽ࡟ࠊࢩࣗ࢘㓟ࢳࢱ࣒ࣥ࢝ࣜ࢘
Ỉ⁐ᾮࢆ⏝࠸࡚ࠊ7L2 ࢼࣀࢡࣜࢫࢱࣝ
㞟✚ᆺ⢏Ꮚࢆྜᡂࡋࡓ㸦ᅗ㸲㸧ࠋ❅⣲྾╔ ᐃ࠿ࡽࡣࠊ㧗࠸ %(7 ẚ⾲㠃✚PJ ࡀᚓࡽࢀࡓࠋ%-+ ゎᯒ࡟ࡼࡾᚓࡽࢀࡓ QP ࡢ⣽Ꮝศᕸࡀࠊ
㧗࠸ %(7ẚ⾲㠃✚ࢆࡶࡓࡽࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋ
7L2 ࢼࣀࢡࣜࢫࢱࣝ㞟✚ᆺ⢏Ꮚࡢ
;5' ࣃࢱ࣮ࣥ࠿ࡽࡣࠊ࢔ࢼࢱ࣮ࢮᆺ
7L2 ࠾ࡼࡧࣝࢳࣝᆺ 7L2 ࡟ᖐᒓࡉࢀࡿ
ᅇᢡ⥺ࡀほᐹࡉࢀࠊr௜㏆ࡢᅇᢡ⥺ࡢ✚ศᙉᗘẚࡼࡾ⟬ฟࡉࢀࡓ࢔ࢼࢱ
࣮ࢮᆺ 7L2 ࡜ࣝࢳࣝᆺ 7L2 ࡢࣔࣝẚࡣࠊ㸸 ࡛࠶ࡗࡓ㸦ᅗ㸳ᕥᅗ㸧ࠋ7L2 ࢼࣀࢡࣜࢫࢱࣝ㞟✚ᆺ⢏Ꮚࡢ 5DPDQ ࢫ࣌ࢡࢺࣝ࠿ࡽࡣࠊFPѸࠊFPѸࠊ

ᅗ㸱㸦D㸧7L2 ࢼࣀࢡࣜࢫࢱࣝࢥ࣮ࢸ࢕ࣥࢢ࠾
ࡼࡧ㸦E㸧)72 ࡢ 5DPDQ ࢫ࣌ࢡࢺࣝࠋ
㸦F㸧 D
࡜ E ࡢᕪࠋ
㸦G㸧7L2 3 ࡢ 5DPDQ ࢫ࣌ࢡࢺࣝࠋ

FPѸ ࡢ఩⨨࡟ࣆ࣮ࢡࡀほᐹࡉࢀࠊࡑࢀࡒࢀࠊ࢔ࢼࢱ࣮ࢮᆺ 7L2 ࡢ (JPRGH FPѸ ࠊ$JFPѸ ࠊ(J  PRGH FPѸ ࡟ᖐᒓࡉࢀࡓࠋ









ᅗ㸲㸦D㸧7L2 ࢼࣀࢡࣜࢫࢱࣝ㞟✚ᆺ⢏Ꮚࡢ 6(0 ീࠋ
㸦E㸧㸦D㸧ࡢᣑ኱ 6(0 ീࠋ

−9−



ᅗ㸳 ᕥᅗ㸸
㸦D㸧7L2 ࢼࣀࢡࣜࢫࢱࣝ㞟✚ᆺ⢏Ꮚࡢ ;5' ࣃࢱ࣮ࣥࠋ E 㸦D㸧ࡢᣑ኱ ;5'ࣃࢱ࣮ࣥࠋྑᅗ㸸㸦D㸧7L2 ࢼࣀࢡࣜࢫࢱࣝ㞟✚ᆺ⢏Ꮚࡢ 5DPDQ ࢫ࣌ࢡࢺࣝࠋ E 7L2 3
ࡢ 5DPDQ ࢫ࣌ࢡࢺࣝࠋ

FPѸ ࡟ࡶࣈ࣮ࣟࢻ࡞ࣆ࣮ࢡࡀほᐹࡉࢀࠊ࢔ࢼࢱ࣮ࢮᆺ 7L2 ࡢ %JPRGH FPѸ࠾ࡼࡧࣝࢳࣝᆺ 7L2 ࡢ᭱ᙉ⥺࡛࠶ࡿ (JPRGH FPѸ ࡟ᖐᒓࡉࢀࡓࠋ
ᮏ◊✲࡟ࡼࡾࠊࢩࣗ࢘㓟ࢳࢱ࣒ࣥ࢝ࣜ࢘Ỉ⁐ᾮࢆ⏝࠸࡚ࠊ7L2 ࢼࣀࢡࣜࢫࢱࣝࢥ࣮ࢸ
࢕ࣥࢢ࠾ࡼࡧ 7L2 ࢼࣀࢡࣜࢫࢱࣝ㞟✚ᆺ⢏Ꮚࡢ㛤Ⓨࢆ⾜ࡗࡓࠋࣇࢵ⣲➼ࡢࣁࣟࢤࣥ࠾ࡼࡧ
㓟ࢆ⏝࠸࡞࠸ྜᡂࣉࣟࢭࢫ࡛࠶ࡿࡇ࡜࠿ࡽࠊ⏕య㛵㐃ᮦᩱࠊ་⒪⏝㏵➼ࠊᖜᗈ࠸ᛂ⏝ᒎ㛤ࡀᮇᚅࡉࢀࡿࠋ

[1] Y. Masuda, et al., Thin Solid Films, 516, 2547 (2008)[2] Y. Masuda, et al., Cryst. Growth Design, 8(9), 3213 (2008)[3] Y. Masuda, et al., J. Nanosci. Nanotechnol., 14, 2231 (2014)㸦ඹྠ◊✲ศ㔝㸸ࢼࣀ࣭࣐࢖ࢡࣟᵓ㐀ไᚚࣉࣟࢭࢫᏛศ㔝㸧− 10 −

࣐࢖ࢡࣟග㐀ᙧἲࢆ⏝࠸ࡓ඲ᅛయᆺࣜࢳ࣒࢘㟁ụࡢ๰〇㤳㒔኱Ꮫᮾி㒔ᕷ⎔ቃ⛉Ꮫ◊✲⛉Ჷ᪉ ⿱୍ࠊ㔠ᮧ ⪷ᚿ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ᱒ཎ ⪽⚽
1. ┠ⓗ࢚ࢿࣝࢠ࣮ᐦᗘࡢ㧗࠸ࣜࢳ࣒࢘஧ḟ㟁ụࡣࠊᑠᆺᦠᖏᶵჾࡢ㟁※࡜ࡋ࡚ᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿࠋ㏆ᖺ࡛ࡣࠊ⮬ື㌴ࡸࣂ
ࢫ࡞࡝ࡢ኱ᆺᶵჾ࡟ࡶᦚ㍕ࡉࢀࡿࡼ࠺࡟࡞ࡾࠊࡑࡢ⏝㏵ࡣ኱ࡁࡃᣑ኱ࡋ࡚࠸ࡿࠋࡑࢀ࡟క࠸ࠊ࢚ࢿࣝࢠ࣮ᐦᗘࡔࡅ࡛࡞
ࡃᏳ඲ᛶࡢྥୖࡶ㔜せ࡞ㄢ㢟࡜࡞ࡗ࡚࠸ࡿࠋ⌧ᅾࡢࣜࢳ࣒࢘஧ḟ㟁ụࡣࠊ᭷ᶵ⁐፹࡟ࣜࢳ࣒࢘ሷࢆ⁐ゎࡋࡓ㟁ゎᾮࢆ౑⏝ࡋ࡚࠸ࡿࠋྍ⇞ᛶࡢ᭷ᶵ⁐፹ࡣࠊ㟁ụࡢᏳ඲ᛶࢆᦆ࡞࠺኱ࡁ࡞せᅉ࡛࠶ࡿࠋࡑࡢࡓࡵࠊ㟁ゎᾮࢆࣜࢳ࣒࢘࢖࢜ࣥఏᑟ
ᛶࡢᅛయ㟁ゎ㉁࡟⨨ࡁ᥮࠼ࡿ᳨ウࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊᅛయ㟁ゎ㉁ࡣ㟁ゎᾮ࡟ẚ࡭࡚࢖࢜ࣥఏᑟᛶࡀ 1 ᱆௨ୖప࠸ࡓࡵࠊᏳ඲ᛶࢆ☜ಖ࡛ࡁࡿࡶࡢࡢࠊ⌧⾜ࡢ㟁ụ࡜ྠ➼ࡢฟຊࢆᚓࡿࡇ࡜ࡣ㞴ࡋ࠸ࠋࡇࡢၥ㢟ࡣࠊ㟁Ẽ໬Ꮫ཯ᛂࡀ㉳ࡇࡿ㟁ᴟ㸫㟁ゎ㉁⏺㠃ࡀᅛయ㸫ᾮయ࠿ࡽᅛయ㸫ᅛయࡢ⤌ࡳྜࢃࡏ࡟ኚ໬ࡋࠊ
ࡑࡢᙧᡂࡀᅔ㞴࡟࡞ࡿࡇ࡜࡟ࡶ㉳ᅉࡋ࡚࠸ࡿࠋ
ᡃࠎࡣࠊᅛయ㟁ゎ㉁ࢆ⏝࠸ࡓ㟁ụ࡟࠾ࡅࡿෆ㒊᢬ᢠࡢపῶࢆ┠ⓗ࡜ࡋ࡚ࠊᅛయ㟁ゎ㉁ࡢᵓ㐀໬࡟ྲྀࡾ⤌ࢇ࡛ࡁࡓࠋᅗ 1࡟♧ࡍࡼ࠺࡟ࠊᵓ㐀໬ࡉࢀࡓᅛయ㟁ゎ㉁ࢆ⏝࠸ࢀࡤࠊ༢఩య✚ᙜࡓࡾࡢ㟁ᴟ㸫㟁ゎ㉁⏺㠃ࡀቑຍࡍࡿࡔࡅ࡛࡞ࡃࠊከࡃ
ࡢ㟁ᴟά≀㉁ࢆ㟁ụ࡟ᑟධࡋ࡚ࡶṇᴟ㸫㈇ᴟ㛫ࡢ㊥㞳ࢆ୍ᐃ࡟ಖࡘࡇ࡜ࡀྍ⬟࡜࡞ࡿࡓࡵࠊ㟁ᴟά≀㉁ࡢ฼⏝⋡ࡢపୗࢆᢚ࠼ࡿࡇ࡜ࡶྍ⬟࡜࡞ࡿࠋᮏඹྠ◊✲࡛ࡣࠊ࣐࢖ࢡࣟග㐀ᙧἲࢆ⏝࠸ࡓࢭ࣑ࣛࢵࢡ㟁ゎ㉁ࡢᵓ㐀໬ࢆ┠ⓗ࡜ࡋࠊᚲせ࡜࡞ࡿᇶ┙ᢏ⾡ࡢ☜❧࡟ྲྀࡾ⤌ࢇࡔࠋ㔠ᒓࣜࢳ࣒࢘ࡸ㧗㟁఩ṇᴟ࡟ᑐࡋ࡚Ᏻᐃ࡞ࢪࣝࢥࢽ࢔⣔ࢭ࣑ࣛࢵࢡࢫ㟁ゎ㉁ࡢ୍✀࡛࠶ࡿ Li7La3Zr2O12 (LLZ)ࢆᑐ㇟࡟ᵓ㐀໬࡟ᚲせ࡞ࢫ࣮ࣛࣜࡢㄪ〇ࠊග㐀ᙧ᮲௳ࡢ᭱㐺໬ࢆᐇ᪋ࡋࡓࠋ
2. ᐇ㦂ᡭἲ ࢭ࣑ࣛࢵࢡ㟁ゎ㉁ LLZ ࢆᅛ┦ἲ࡛ྜᡂࡋࡓࠋLiOHࠊLa(OH)3ࠊZrO2 ࢆ Li : La : Zr = 7.7 : 3 : 2 ࡜࡞ࡿẚ⋡࡛ங㖊ΰྜࡋࠊ
900 °C ࡛ 6 h ↠↝ࡋࡓࠋ↠↝⢊ᮎ࡟J-Al2O3 ࢆ 0.125 mol%㸦vs. LLZ㸧ῧຍࡋࠊࣇࣜࢵࢳࣗ♫〇㐟ᫍᆺ࣮࣑࣎ࣝࣝ P-6 ࢆ⏝
࠸࡚ࠊ500 rpm ࡛ 12 hࠊ⢊○࣭ΰྜࡋࡓࠋᚓࡽࢀࡓ⢊ᮎ࡜ග◳໬ᛶᶞ⬡ࢆΰྜࡋ࡚ࢫ࣮ࣛࣜࢆㄪ〇ࡋࠊࢹ࢕࣮࣓ࢵࢡ♫〇ග㐀ᙧ⿦⨨࡟ࡼࡾࠊLLZ ᵓ㐀యࡢ๓㥑యࢆ㐀ᙧࡋࡓࠋࢫ࣮ࣛࣜࡢ᭱㐺໬ࢆ⾜࠺ࡓࡵࠊග◳໬ᛶᶞ⬡࡜ࡋ࡚࢔ࢡࣜࣝ⣔ձࠊ࢔ࢡࣜࣝ-࢚࣏࢟ࢩ⣔ղࡢ 2 ✀㢮ࡢ㐺⏝ࢆ᳨ウࡋࡓࠋྛࢫ࣮ࣛࣜ࡟࠾ࡅࡿ LLZ ྵ᭷㔞ࢆ 26 vol%࡟ᅛᐃࡋࡓࠋග㐀ᙧ㐣⛬࡟࠾࠸࡚ࡣࠊ࣮ࣞࢨ࣮ᙉᗘ࡜࣮ࣞࢨ࣮ࣆࢵࢳࡀ㐀ᙧయࡢᵓ㐀⢭ᗘ࡟ཬࡰࡍᙳ㡪ࢆ୺࡜ࡋ࡚ホ౯ࡋࡓࠋࡲࡓࠊᚓࡽࢀ
ࡓ㐀ᙧయ࡟ࡘ࠸࡚ࡣࠊ600 °C ࡛ 1 h ⬺⬡ࡋࡓᚋࠊつᐃࡢ ᗘ࡛⇕ฎ⌮ࡋࠊ↝⤖య࡜ࡋࡓࠋ
3. ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ࢔ࢡࣜࣝ-࢚࣏࢟ࢩ⣔ղࡢග◳໬ᛶᶞ⬡࡜ LLZ ⢊యࢆΰྜࡋ࡚ㄪ〇ࡋࡓࢫ࣮ࣛࣜ࡟࠾࠸࡚ẼἻࡢⓎ⏕ࡀㄆࡵࡽࢀࡓࠋ
ẼἻࡢⓎ⏕࡟క࠸ࠊࢫ࣮ࣛࣜࡢ⢓ᗘࡀ㧗ࡃ࡞ࡾࠊᚎࠎ࡟◳໬ࡍࡿഴྥࡀㄆࡵࡽࢀࡓࠋ୍᪉ࠊ࢔ࢡࣜࣝ⣔ձࡢග◳໬ᛶᶞ⬡ࢆ⏝࠸ࡓሙྜࡣࠊẼἻࡢⓎ⏕ࡸ◳໬ࡣㄆࡵࡽࢀ࡞࠿ࡗࡓࠋLLZ ࡣ㠀ᖖ࡟ሷᇶᛶࡀᙉ࠸ᮦᩱ࡛࠶ࡾࠊẼἻࡢⓎ⏕ࡣ࢚࣏࢟ࢩ⣔ࡢග◳໬ᛶᶞ⬡ࡀ LLZ ࡜཯ᛂࡍࡿࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋᮏ⤖ᯝ࡟ᇶ࡙ࡁࠊLLZ ࡢࢫ࣮ࣛࣜࢆㄪ〇ࡍࡿ㝿࡟⏝࠸ࡿග◳໬ᛶᶞ⬡ࢆ࢔ࢡࣜࣝ⣔ձ࡜Ỵᐃࡋࡓࠋᮏ LLZ ࢫ࣮ࣛࣜࢆ⏝࠸࡚ග㐀ᙧࢆ⾜ࡗࡓ⤖ᯝࢆᅗ 2 ࡟♧ࡍࠋ࣮ࣞࢨ࣮ᙉᗘ࡜࣮ࣞࢨ࣮ࣆࢵࢳࢆㄪᩚࡋࠊ┠ⓗ࡜ࡍࡿᵓ㐀ࢆᚓࡿࡇ࡜࡟ᡂຌࡋࡓࠋ࣮ࣞࢨ࣮ᙉᗘࡀప࠸ሙྜࡣࢫ࣮ࣛࣜࡢ◳໬ࡀ୙༑ศ࡜࡞ࡾࠊ཯ᑐ࡟ᙉᗘࢆ㧗ࡵࡍࡂࡿ࡜┠ⓗ࡜ࡍࡿ⥺ᖜ௨ୖ࡛◳໬ࡀ㐍⾜ࡋࠊ㐀ᙧ⢭ᗘࡀ኱ࡁࡃపୗࡋࡓࠋ௒ᅇ᳨ウࡋࡓࢫ࣮࡛ࣛࣜࡣࠊ࣮ࣞࢨ࣮ᙉᗘࡀ 5~10 mW ࡢ⠊ᅖ࡟࠶ࡿࡇ࡜ࡀⰋዲ࡞㐀ᙧయࢆᚓࡿࡓࡵࡢ᮲௳࡜࡞ࡗࡓࠋᮏ᮲௳ࡣࢫ࣮ࣛࣜ୰ࡢ LLZ ྵ᭷㔞࡟౫Ꮡࡍࡿࡶࡢ࡜᥎ᐹࡉ
ࢀࡿࠋࡋࡓࡀࡗ࡚ࠊ௒ᚋࡣ LLZ ྵ᭷㔞ࢆྵࡵ࡚ࡼࡾヲ⣽࡞᮲௳ࡢ᳨ウࢆ㐍ࡵࡿࠋ
4. ⤖ㄽ ࢭ࣑ࣛࢵࢡ㟁ゎ㉁ LLZ ࡢᵓ㐀໬࡟ᚲせ࡞ග㐀ᙧ⏝ࢫ࣮ࣛࣜࡢㄪ〇࠾ࡼࡧග㐀ᙧ᮲௳ࡢ᭱㐺໬ࢆ㐍ࡵࡓࠋᮏ᳨ウ࡟ࡼࡾ┠ⓗ࡜ࡍࡿᵓ㐀࡛ LLZ ග㐀ᙧయࢆᚓࡿࡇ࡜ࡀྍ⬟࡜࡞ࡗࡓࠋ௒ᚋࡣග㐀ᙧయࡢ↝ᡂ᮲௳࡟ࡘ࠸࡚ヲ⣽࡟᳨ウࢆ㐍ࡵࠊ⦓ᐦ࡟↝⤖ࡉࢀࡓ LLZ ᵓ㐀యࢆస〇ࡋࠊ඲ᅛయ㟁ụࢆヨసࡍࡿࠋ− 11 −

㟁ᴟᮦᩱࡢᑟධ

Fig. 1 ᅛయ㟁ゎ㉁ࡢᵓ㐀໬౛ࠊ࠾ࡼࡧ㟁ᴟᮦᩱࡢᑟධ࡟ࡼࡿ୕ḟඖᵓ㐀໬඲ᅛయ㟁ụࡢ๰〇(ṇᴟ࡜㈇ᴟ㛫ࡢ㊥㞳ࢆ୍ᐃ࡟ಖࡗࡓࡲࡲࠊ㟁ᴟᮦᩱࡢ㔞ࢆቑຍࡉࡏࡿࡇ࡜ࡀྍ⬟࡞ᵓ㐀౛)

240 PmFig. 2 ග㐀ᆺ࡛స〇ࡋࡓ LLZ 㐀ᙧయࡢ౛(ୖ㠃࡜ୗ㠃࡟ 240Pm ゅࡢᏍࡀ஺஫࡟ᙧᡂࡉࢀࡓᵓ㐀).

(ඹྠ◊✲ศ㔝㸸ࢼࣀ࣭࣐࢖ࢡࣟᵓ㐀ไᚚࣉࣟࢭࢫᏛศ㔝)− 12 −

ඛᑟⓗ㔜Ⅼ◊✲ㄢ㢟䞉◊✲ሗ࿌᭩㻌䠄␗✀ᮦᩱ᥋ྜ䛻䛚䛡䜛䝬䝹䝏䝇䜿䞊䝹⏺㠃䛾⛉Ꮫ䛸≀ᛶ䠅䛆◊✲┠ⓗ䛇㻌 ␗✀ᮦᩱ䛾᥋ྜ㒊ᮦ䛿໚ㄽ䛾䛣䛸䚸ྠ✀ᮦᩱ䛾᥋ྜ㒊䛷䛒䛳䛶䜒䚸ᚤどⓗ䛻䛿䛭䛾᥋ྜ⏺㠃㏆ഐ䛻䛚䛡䜛ඖ⣲䛾ᒁᡤⓗ⃰ᗘศᕸ䜔⤖ᬗ㓄ྥᛶ䛾㐪䛔䚸䛒䜛䛔䛿ᚤ⣽䛺໬ྜ≀䜔⮬↛㓟໬≀䛾Ⅼᅾ䛺䛹䜒ᗈ⩏䛷䛾␗✀ᮦᩱ᥋ྜ⏺㠃䛸䛔䛘䜛䚹␗ᮦ᥋ྜ⏺㠃䛾ᙧᡂ䝯䜹䝙䝈䝮䜔⏺㠃ᵓ㐀䞉≀ᛶ䛾⌮ゎ䛿䚸೺඲䛺᥋ྜ㒊ᮦ䛾๰〇䛸᭦䛺䜛ᶵ⬟໬䜢ᅗ䜛ୖ䛷㔜せ䛺ㄢ㢟䛷䛒䜛䚹㻌 䛭䛣䛷䚸ᮏ◊✲ㄢ㢟䛷䛿䚸ཎᏊ䝺䝧䝹䛛䜙䝘䝜䞉䝬䜲䜽䝻䛸䛔䛳䛯䝬䝹䝏䝇䜿䞊䝹䛷䛾␗✀ᮦᩱ᥋ྜ⏺㠃䛾ᙧᡂᶵᵓ䛾ゎ᫂䛚䜘䜃䛭䛾ᵓ㐀䞉≀ᛶゎᯒ䜢㏻䛨䛶䚸␗ᮦ᥋ྜᢏ⾡䛸䛭䜜䛻㈨䛩䜛ᮦᩱタィ䛻㛵䛩䜛ᇶ♏Ꮫ⌮䛾య⣔໬䛸䚸ᮏ◊✲䛻ಀ䜟䜛ᅜ㝿㐃ᦠ◊✲ᣐⅬ䛾ᇶ┙ᙧᡂ䜢┠ᣦ䛩䚹䛆ᡂᯝᴫせ䛇㻌 ᮏᖺᗘ䛿䚸(1) ㌾ X ⥺↷ᑕ䛻䜘䜚స〇䛧䛯 Si 䝘䝜⤖ᬗ⢏(Er)/SiOx/䜺䝷䝇䛻䛚䛡䜛ྛ᥋ྜ⏺㠃䛸⤖ᬗᛶ䚸(2) 䝘䝜䝫䞊䝷䝇ᵓ㐀䛾స〇䛸᥋ྜᛶ䚸(3) Al/䝎䜲䝲䝰䞁䝗」
ྜᮦᩱ䛾⇕ఏᑟ⋡䛻ཬ䜌䛩ศᩓ⢏Ꮚᚄ䛸⏺㠃䛾ᙳ㡪䚸(4) 䜾䝷䝣䜵䞁/Al2O3 䝘䝜」ྜᮦᩱ䛾⏺㠃ᵓ㐀ゎᯒ䛸ຊᏛ≉ᛶ䚸(5) CNT 䛻䜘䜛䝏䝍䞁⾲⏺㠃䛾䝘䝜䝇䜿䞊䝹ᵓ㐀໬䛸⣽⬊௜╔ቑṪᶵᵓゎ᫂䛾䠑䝔䞊䝬䛻䛴䛔䛶ྲྀ䜚⤌䜣䛰䚹␗ᮦ᥋ྜ⏺㠃䛷䛾⤌⧊ᵓ㐀䛜᥋ྜ㒊ᮦ䛾ྛ✀≀ᛶ䛻ཬ䜌䛩ᙳ㡪䜢ㄪᰝ䞉ゎᯒ䛩䜛䛣䛸䛷䚸⾲㠃཯ᛂ䛚䜘䜃⏺㠃ᙧᡂ䝯䜹䝙䝈䝮䛾ゎ᫂䚸᥋ྜ㒊ᮦ䛾ಙ㢗ᛶ䛻ཬ䜌䛩ᒁᡤ⏺㠃䛾ᙳ㡪䚸⏺㠃䛷䛾⇕䞉ᛂຊఏ㐩ᶵᵓ䛾ゎ᫂䚸⣽⬊ศ໬⌧㇟䛻䛚䛡䜛㔠ᒓ䠋᭷ᶵ≀䛾䝘䝜⏺㠃䛾ᙳ㡪䛺䛹䛻㛵䛩䜛ᇶ♏ⓗ䛺⌧㇟䞉ᶵᵓ䜢⌮ゎ䛩䜛䛣䛸䛜䛷䛝䛯䚹䜎䛯䚸୍㒊䛾◊✲ㄢ㢟䛻㛵䛧䛶䛿䚸᫖ᖺᗘ䛸ྠᵝ䛻ᾏእ䛾◊✲ᶵ㛵䛛䜙䛾◊✲⪅䛜ཧຍ䛧䛶䛚䜚䚸ᮏྲྀ⤌䜏䛻䛚䛡䜛㔜せㄢ㢟䛾୍䛴䛷䛒䜛ᅜ㝿ඹྠ㐃ᦠ◊✲䛻ྥ䛡䛯ᇶ┙ᵓ⠏䜢㐍䜑䚸᮶ᖺᗘ䜒ᅜෆእ䛾◊✲ᶵ㛵䛸䛾㐃ᦠ䞉ᒎ㛤䜢ᅗ䜛ィ⏬䛷䛒䜛䚹㻌ࢢࣛࣇ࢙ࣥ/Al2O3 ࢼࣀ」ྜᮦᩱࡢస〇࠾ࡼࡧᶵᲔⓗ≉ᛶࡢホ౯ᮾ໭኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᮦᩱࢩࢫࢸ࣒ᕤᏛᑓᨷ ᕝᓮ ு㸪஬༑ᔒ 㖟Ἑ㸪࿘ ೧೧㸪Ⱳ Ᏹ㥅㸪ᒣཱྀ 㐩ஓ㸯㸬┠ⓗࢢࣛࣇ࢙ࣥࡣ஧ḟඖࢩ࣮ࢺᵓ㐀ࡢࢼࣀ࣮࢝࣎ࣥ 1㸧࡛࠶ࡾ, ᵝࠎ࡞ඃࢀࡓ≉ᛶࢆ᭷ࡍࡿࡇ࡜࠿ࡽ」ྜᮦᩱࡢࢼ
ࣀࣇ࢕࣮ࣛ࡜ࡋ࡚ὀ┠ࢆ㞟ࡵ࡚࠸ࡿ. ୰࡛ࡶᶵᲔ≉ᛶ࡟㛵ࡋ࡚ࡣࣖࣥࢢ⋡~1 TPa, ᘬᙇᙉࡉ 130 GPa ࡜㠀ᖖ࡟ඃࢀ࡚࠾ࡾ, ࢭ࣑ࣛࢵࢡࢫᇶ」ྜᮦᩱ࡟ࡘ࠸࡚ࡣ㧗㠎ᛶ໬࡞࡝ࢆᮇᚅࡋ࡚◊✲ࡀ⾜ࢃࢀ࡚࠸ࡿ. ࡋ࠿ࡋࢢࣛ
ࣇ࢙ࣥࡢ኱㔞⏕⏘ࡀ㞴ࡋ࠸ࡇ࡜࠿ࡽ, ᚑ᮶ࡢ◊✲࡛ࡣከᒙᵓ㐀ࡢࢢࣛࣇ࢓࢖ࢺࢆࣇ࢕࣮ࣛ࡜ࡋ࡚⏝࠸ࡿሙྜࡀከࡃ, ཌࡉࡢቑຍ࡟ᚑ࠸ᰂ㌾ᛶࡸ࢔ࢫ࣌ࢡࢺẚ࣭ẚ⾲㠃✚࡜࠸ࡗࡓࢢࣛࣇ࢙ࣥࡢ㛗ᡤࡀኻࢃࢀࡿࡓࡵ, ࢢࣛࣇ࢙ࣥࡢ≉ᛶࡀ」ྜᮦᩱࡢᶵᲔⓗᛶ㉁࡟༑ศ࡟Ⓨ᥹ࡉࢀ࡞࠸. ࡋࡓࡀࡗ࡚, ࢢࣛࣇ࢙ࣥ/ࢭ࣑ࣛࢵࢡࢫ」ྜᮦ
ᩱ࡟࠾࠸࡚ࡣࣇ࢕࣮ࣛࡢཌࡉ࡜ᆒ୍࡞ศᩓࡀ㔜せ࡞ၥ㢟࡜࡞ࡗ࡚࠸ࡿ. ᮏ◊✲࡛ࡣ, ࢥࣟ࢖ࢲࣝࣉࣟࢭࢫ࡟
ࡼࡿΰྜ⢊ᮎࡢస〇, ᨺ㟁ࣉࣛࢬ࣐↝⤖ἲ(SPS)ࢆ⏝࠸ࡓ↝⤖࡟ࡼࡾ, ᩘᒙࡢࢢࣛࣇ࢙ࣥ(few-layer graphene :FG)ࡀ࣐ࢺࣜࢵࢡࢫ⢏⏺࡟ᆒ୍ศᩓࡋࡓ FG/Al2O3 」ྜᮦᩱࢆస〇ࡋ, ᶵᲔⓗᛶ㉁ࢆホ౯ࡍࡿࡇ࡜࡛, ᮏ᮶ࢢࣛࣇ࢙ࣥࣇ࢕࣮ࣛࡀࢭ࣑ࣛࢵࢡࢫ࡟ཬࡰࡍ≉ᛶࡸࡑࡢ࣓࢝ࢽࢬ࣒࡟ࡘ࠸࡚᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ.

㸰㸬◊✲᪉ἲ
Modified Hummers ἲ࡟ࡼࡾࢢࣛࣇ࢓࢖ࢺࢆ㓟໬ฎ⌮ࡋ, ࢢࣛࣇ࢙ࣥ࢜࢟ࢧ࢖ࢻ(Graphene oxide : GO)ࡀᆒ୍
࡟ศᩓࡋࡓࢥࣟ࢖ࢻࢆస〇ࡍࡿ. Al2O3 ࢥࣟ࢖ࢻ࡜ GO ࢥࣟ࢖ࢻࢆ⁲ᐃ࡟ࡼࡾΰྜࡋ, GO/ Al2O3 ΰྜ⢊ᮎࢆㄪ〇ࡍࡿ. ࡇࡢΰྜ⢊ᮎࢆ SPS ࡟ࡼࡾ 1250Υ, ᅽຊ 80 MPa, 10 ศಖᣢࡢ᮲௳࡛↝⤖ࡋࡓ. SPS ↝⤖୰࡟ GO ࡣྠ᫬࡟⇕㑏ඖࡉࢀ, FG య✚ศ⋡ 0 ~ 4.4 vol% ࡢ FG/ Al2O3 」ྜᮦᩱࡀస〇ࡉࢀࡓ. 4 Ⅼ᭤ࡆヨ㦂ࡸ SENB ἲ࡟ࡼ
ࡾᛂຊ-ࡦࡎࡳ᭤⥺ࡸ◚ቯ㠎ᛶ್࡜࠸ࡗࡓᶵᲔⓗᛶ㉁ࢆ

ᐃࡋࡓ௚, ࢔࣓ࣝ࢟ࢹࢫἲ࡛ᐦᗘࢆ ᐃ, SEM ࡜

TEM ࡟ࡼࡗ࡚ᚤ⣽ᵓ㐀ࡢほᐹࢆ⾜ࡗࡓ.450䝁䝻䜲䝎䝹䝥䝻䝉䝇䜢⏝䛔䛶సᡂ䛧䛯 GO/Al2O3 ΰྜ⢊ᮎ䜢

400

SPS 䛷↝⤖䛧䛯䚹ヨᩱ䜢 SEM䚸TEM 䛷ほᐹ䛩䜛䛸䚸ᩘᒙ䛾

350䜾䝷䝣䜵䞁䛜 Al2O3 ⢏⏺䛻Ꮡᅾ䛧」㞧䛺୕ḟඖ䝛䝑䝖䝽䞊䜽300

䜢ᙧᡂ䛧䛶䛔䛯䚹䛥䜙䛻䚸2.2 vol.% 䜾䝷䝣䜵䞁ྵ᭷⋡䛾ヨᩱ୰䛷䛿䝣䜱䝷䞊䛜~6 ᒙ䛾䜾䝷䝣䜵䞁䛷ᙧᡂ䛥䜜䛶䛚䜚䚸㠀Stress ǔ / MPa㸱㸬⤖ᯝᖖ䛻ⷧ䛔䜾䝷䝣䜵䞁䛜ᆒ୍䛻ศᩓ䛧䛯⦓ᐦ䛺」ྜᮦᩱ䜢స〇䛩䜛䛣䛸䛻ᡂຌ䛧䛯 2䠅䚹FG / Al2O3 」ྜᮦᩱ䛾ᶵᲔⓗ≉ᛶ䛿䚸ᅄⅬ᭤䛢ヨ㦂䜢⏝䛔䛶ᐃ䛧䛯䚹ᅄⅬ᭤䛢ヨ㦂䛾⤖ᯝ䛛䜙 Fig1 䛻♧䛩䜘䛖䛻䚸2.2 vol.%䛾䜾䝷䝣䜵䞁䜢」ྜ䛧䛯䛣䛸䛻䜘䜚䚸Al2O3 䛸ẚ㍑䛧䛶䝲䞁䜾⋡䛜ῶᑡ䛧䛯୍᪉䛷䚸䝬

250

Al2O3

200
2.2vol.%FG/Al2O3

150
100

20Hburn out 2.2
vol.%FG/Al2O3

50
0
0

0.05

0.1
Strain ǆ (%)

Fig.1 Stress-Strain curves3㸧

䝖䝸䝑䜽䝇䛾᭤䛢ᙉ䛥䛿䜟䛪䛛䛻ቑຍ䛧䚸ྠ᫬䛻◚ቯ䜂䛪䜏䛜ቑຍ䛩䜛㠀ᖖ䛻≉ᚩⓗ䛺ᶵᲔⓗᛶ㉁䛜᫂䜙䛛䛸䛺䛳䛯 3䠅䚹FG 䛾ᶵᲔⓗᛶ㉁䜈䛾ᐤ୚䜢᫂䜙䛛䛻䛩䜛䛯䜑䚸2.2 vol%FG/Al2O3 」ྜᮦᩱ䜢⇕ฎ⌮䛧 FG 䜢⇞↝㝖ཤ䛧䛯䚹䠄Fig2䠅Fig3 䛻♧䛩䜘䛖䛻䚸䛭䛾䝲䞁䜾⋡䛿 FG 䛾⇞↝๓䛸኱䛝䛺ኚ໬䛿䛺䛟䚸FG 䛾ᙧᡂ䛩䜛୕ḟඖ䝛䝑䝖䝽䞊䜽䛾」㞧ᛶ䛜」ྜᮦᩱ䛾䝲䞁䜾⋡పୗ䛻ᙳ㡪䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛 3䠅䚹

− 13 −

0.15

」ྜᮦᩱ䛾ட⿣㒊ศ䜢 TEM 䛻䜘䜚ほᐹ䛩䜛䛸, 䝤䝸䝑䝆䞁䜾䜔◚᩿䛧䛯䜾䝷䝣䜵䞁䛜☜ㄆ䛥䜜䚸ட⿣䛾ఙᒎ䜢ጉ䛢䜛
FG 䛾ാ䛝䛜」ྜᮦᩱ䛾㧗ᙉᗘ໬䛾䝯䜹䝙䝈䝮䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹
350

0.008
0.006
0.004
0.002
0
0

5
10
15
Heating time, t /h

20

Fig.2 Heating time vs FG content of 2.2 vol% FG/Al2O33㸧  Young’s modulus, E/GPa

FG content ,m /g

0.01

300
250
200
150
100
50
0
0

4

8
12
16
Heating time, t /h

20

Fig.3 The effect of burning time for Young’s modulus of
2.2 vol% FG/Al2O3 composite3㸧㸲㸬⤖ㄽ
2.2 vol%FG/Al2O3 」ྜᮦᩱ࡟╔┠ࡍࡿ࡜, Al2O3 ༢┦࡜ẚ㍑ࡋ࡚పࣖࣥࢢ⋡໬ࡋࡓ୍᪉࡛, ᭤ࡆᙉࡉ࡜◚ቯࡦࡎࡳࡣቑຍࡍࡿ, ୍⯡ⓗ࡞ᮦᩱ࡟࡜ࡣ␗࡞ࡿ㠀ᖖ࡟≉ᚩⓗ࡞ᶵᲔⓗ≉ᛶࢆ♧ࡋࡓ. ⇕ฎ⌮࡛ FG ࢆ㝖ཤࡋࡓヨᩱ࡜ᛂຊ-ࡦࡎࡳ᭤⥺ࢆẚ㍑ࡍࡿࡇ࡜࡛, FG ࡀࣖࣥࢢ⋡࡟ᐤ୚ࡋ࡞࠸୍᪉࡛, ᮦᩱࡢᙉ໬࡟ࡣ኱ࡁ࡞ຠᯝࢆⓎ᥹ࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ. ᵝࠎ࡞ศᯒ࠿ࡽ, ࣖࣥࢢ⋡ࡢపୗࡣ FG ࡀ⢏⏺࡛ᙧᡂࡍࡿ」㞧࡞ 3D ࢿࢵࢺ࣮࣡ࢡࡢᙳ㡪࡛࠶ࡾ, 㧗㠎໬࣭㧗ᙉᗘ໬࡟ࡣࣖࣥࢢ⋡ࡢ㧗࠸ FG ࡟ࡼࡿட⿣ࡢࣈࣜࢵࢪࣥࢢࡀຠᯝࢆⓎ᥹ࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ.

㸳㸬ཧ⪃ᩥ⊩
1) K.S. Novoselov, A.K. Geim, S. V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, I. V. Grigorieva, A. A. Firsov :Science 306 (2004) 666-669
2) Yuchi Fan, Mehdi Estili, Ginga Igarashi, Wang Jiang, Akira Kawasaki : Journal of the European Ceramic Society
34 (2014) 443-451
3) Yuchi Fan ,Ginga Igarashi , Wan Jiang , Lianjun Wang ,Akira Kawasaki : Highly strain tolerant
and tough ceramic composite by incorporation of graphene : CARBON90(2015)274㸫283㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 14 −

␗ᮦ⏺㠃ࡢᚤ⣽ᵓ㐀ࡢほᐹࠊホ౯ཬࡧไᚚ
㌾㹖⥺↷ᑕ࡟ࡼࡾస〇ࡋࡓ 6L ࢼࣀ⤖ᬗ⢏ (U 6L2[࢞ࣛࢫ࡟࠾ࡅࡿྛ᥋ྜ⏺㠃࡜⤖ᬗᛶරᗜ┴❧኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ᯇᑿ┤ேࠊᖹ㔝⩧኱ࠊⲡቨ ྐࠊ㒊ᐙ ᙲ┠ⓗ
 6L2[ ୰ࡢ 6L ࢼࣀ⤖ᬗ⢏ࡣࠊ㧗ຠ⋡ⷧ⭷ኴ㝧㟁ụࡢᮦᩱ࡜ࡋ࡚ࡣ㠀ᖖ࡟㨩ຊⓗ࡛࠶ࡿࠋ⌮⏤ࡣࠊ6L ࢼࣀ⤖ᬗ⢏ࢆᛂ⏝ࡋࡓ㔞Ꮚษ᩿ᆺኴ㝧㟁ụࡢሙྜࠊ ಶࡢ⣸እ㡿ᇦࡢ㧗࢚ࢿࣝࢠ࣮ගᏊࢆྍどග㡿ᇦࡢ  ಶࡢගᏊ࡟ኚ᥮ࡋࠊග㟁ኚ᥮ຠ⋡ࢆ 4& ⌮ㄽ್ࡢ ࠿ࡽ኱ᖜ࡟ቑຍࡉࡏࡿ࠿ࡽ࡛࠶ࡿࠋ᭦࡟ࠊ6L ࢼࣀ⤖ᬗ⢏ࡢస〇࡟ࡣప ໬ࡀせồࡉࢀ࡚࠸ࡿࠋᡃࠎࡣࡇࢀࡲ࡛࡟ࢩࣥࢡࣟࢺࣟࣥᨺᑕග᪋タ 1HZ68%$58 ࢆ฼⏝ࡋࡓ㌾㹖⥺↷ᑕ࡟ࡼࡿప ⤖ᬗ໬ࢆ◊✲ࡋ>@ࠊ㟁Ꮚບ㉳࣭ཎᏊ⛣ືຠᯝ࡟ࡼࡾࠊD6L ⭷ࡢ⤖ᬗ໬㜈್ ᗘࢆ Υ⛬ᗘపῶ࡛ࡁࡿࡇ࡜ࢆ᫂ࡽ࠿࡜ࡋ࡚࠸ࡿࠋᮏ◊✲ࡢ┠ⓗࡣ཯ᛂᛶࢫࣃࢵࢱἲ࡟ࡼࡾ▼ⱥᇶᯈୖ࡟ሁ✚ࡋࡓ 6L2[ ⭷࡟ࠊ㌾㹖⥺ࢆ↷ᑕࡋ 6L ࢼࣀ⤖ᬗ⢏ࢆᙧᡂࡍࡿࡇ࡜࡛࠶ࡿࠋ
ᐇ㦂᪉ἲ ཯ᛂᛶࢫࣃࢵࢱἲ࡟ࡼࡾ▼ⱥᇶᯈ WPP ୖ࡟ 6L2[ ⭷ࢆ⭷ཌ QP ሁ✚ࡋࡓࠋ6L ࢱ࣮ࢤࢵࢺ PPȭ ࡜ᇶᯈ㛫ࡢ㊥㞳ࡣ PP ࡛࠶ࡿࠋࢫࣃࢵࢱ᮲௳ࡣࠊ5) ࣃ࣮࣡:ࠊ࢞ࢫὶ㔞 VFFPࠊ$U2 ὶ㔞ẚ 
㹼ࠊࢳࣕࣥࣂ࣮ෆᅽຊ 3D ࡛࠶ࡿࠋ1HZ68%$58 ࡢ %/$ ࡟࡚ࠊ⵳✚ࣜࣥࢢ࢚ࢿࣝࢠ࣮*H9ࠊ⵳✚ࣜࣥࢢ㟁ὶ P$ࠊගᏊ࢚ࢿࣝࢠ࣮H9ࠊ↷ᑕ㔞 P$࣭K ↷ᑕ᫬㛫 PLQ ࡢ᮲௳࡛㌾㹖⥺ࢆ↷ᑕࡋࡓࠋヨᩱ⾲㠃ୖ࡛ࡢ㌾㹖⥺ࡢࣅ࣮࣒ᚄࡣȭPP ࡛࠶ࡿࠋ
6L2[ ⭷ࡢ⤌ᡂศᯒ࡟ࡣ࢚ࢿࣝࢠ࣮ศᩓᆺ㹖⥺ศගἲ ('; ࠊ㹖⥺ග㟁Ꮚศගἲ ;36 ࢆ⏝࠸ࡓࠋ⤖ᬗᛶࡢホ౯࡟ࡣ࣐ࣛࣥศගἲࢆ⏝࠸ࡓࠋ⤖ᯝ
 ㌾㹖⥺↷ᑕᚋࡢヨᩱࡢ෗┿ࢆ )LJ ࡟♧ࡍࠋ6L2 ⤌ᡂẚ  ࡢヨᩱ࡟࠾ࡅࡿ↷ᑕ㡿ᇦࢆⅬ⥺࡛♧ࡍࠋࡍ࡭࡚ࡢヨᩱ࡟࠾࠸࡚↷ᑕ㡿ᇦࡣ෇ᙧ࡟ኚⰍࡋ࡚࠾ࡾࠊࣅ࣮࣒ᚄ࡜୍⮴ࡋࡓࠋࡲࡓࠊ࣐ࣛࣥศᯒ

ᐃ࡟ࡼࡾࠊ

6L ⤖ᬗ┦࡟㉳ᅉࡍࡿࣆ࣮ࢡࡀほ ࡉࢀࡓ㡿ᇦ࡜┠ど࡛ኚⰍࡀ☜ㄆ࡛ࡁࡓ㡿ᇦࡣ୍⮴ࡋࡓࡓࡵࠊ㌾㹖⥺↷ᑕ࡟ࡼࡾ㠀ᬗ㉁┦࠿ࡽ⤖ᬗ┦࡬ᵓ㐀ኚ໬ࡋࠊ6L2[ ⭷୰࡟ 6L ⤖ᬗ⢏ࡀᙧᡂࡉࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
⤖ᬗ໬ࡋࡓヨᩱࡢ࣐ࣛࣥࣆ࣮ࢡ఩⨨࡜ 6L2 ⤌ᡂẚࡢ㛵ಀࢆ )LJ ࡟♧ࡍࠋⅬ⥺ࡣࢩࣜࢥࣥࣂࣝࢡ༢⤖ᬗࡢ࣐ࣛࣥࣆ࣮ࢡ఩⨨ࢆ♧ࡍࠋ┤⥺ࡣྛヨᩱࡢ࣐ࣛࣥࣆ࣮ࢡ఩⨨ࡢࣉࣟࢵࢺ࠿ࡽ᭱ᑠ஧஌ἲ࡟ࡼࡾᚓࡓࠋ6L ࢼࣀ⤖ᬗ⢏ࡢ⢏ᚄࡣࠊࢩࣜࢥࣥࣂࣝࢡ༢⤖ᬗࡢࣆ࣮ࢡ఩⨨࠿ࡽࡢపἼᩘഃ࡬ࡢࢩࣇࢺ㔞>@ࡼࡾࠊ㹼QP ᖹᆒ QP ࡜ぢ✚ࡶࡽࢀࡓࠋࡲࡓࠊ࣐ࣛࣥࣆ࣮ࢡ఩⨨ࡣࠊ⤖ᬗ⢏ෆࡢᛂຊ࡟ࡼࡗ
࡚ࡶኚ໬ࡍࡿࡓࡵࠊ6L ࢼࣀ⤖ᬗ⢏6L2[ ⏺㠃ࠊࡲࡓ▼ⱥᇶᯈ࡜ࡢ
⏺㠃ࡢ≧ែࡢᙳ㡪ࡶྵࡲࢀࡿ࡜⪃࠼ࡽࢀࡿࠋ
⤖ᬗ໬ࡋࡓヨᩱࡢ್༙ᖜ࡜ 6L2 ⤌ᡂẚࡢ㛵ಀࢆ )LJ ࡟♧ࡍࠋⅬ⥺ࡣࢩࣜࢥࣥࣂࣝࢡ༢⤖ᬗࡢ್༙ᖜࢆ♧ࡍࠋ6L2 ⤌ᡂẚࡀቑຍࡍࡿ࡯࡝್༙ᖜࡣቑຍࡋࡓࠋ㌾㹖⥺↷ᑕ࡟ࡼࡿ 6L ࢼࣀ⤖ᬗ⢏ᙧᡂ࡛ࡣ 6L2 ⤌ᡂẚࡀ኱ࡁ࠸࡯࡝Ḟ㝗ᐦᗘࡀ኱ࡁࡃ࡞ࡿࡇ࡜ࡀ

)LJ7KHRSWLFDOLPDJHRIWKHVDPSOHVZLWK 6L2 UDWLRV EHWZHHQ  DQG DIWHUVRIW;UD\LUUDGLDWLRQ− 15 −

♧၀ࡉࢀࡓࠋ
⤖ᬗ໬⋡ࠊ࣐ࣛࣥᙉᗘ࡜ 6L2 ⤌ᡂẚࡢ㛵ಀࢆ )LJ ࡟♧ࡍ 6L2 ⤌ᡂẚࡢቑຍ࡟క࠸ࠊ
⤖ᬗ໬⋡ࡣቑຍࡋࡓࠋ6L2⤌ᡂẚࡀ  ࡜  ࡢሙྜࠊ⤖ᬗ໬ࡣ㉳ࡇࡗ࡚࠸࡞࠸ࠋ
6L ⃰ᗘࡢప࠸ 6L2[ ⭷ࡢሙྜࠊ6L ཎᏊ㛫ࡢ㊥㞳ࡀ኱ࡁ࠸ࡓ
ࡵจ㞟ࡀ㉳ࡇࡽ࡞࠿ࡗࡓ࡜⪃࠼ࡽࢀࡿࠋ6L ⃰ᗘࡀቑຍࡍ
ࡿ࡟ࡘࢀ 6L ཎᏊࡢจ㞟ࡣಁ㐍ࡉࢀࡿࡓࡵࠊ6L2 ⤌ᡂẚࡀቑຍࡍࡿ࡯࡝ࠊ⤖ᬗ໬⋡ࡣቑຍࡋࡓࠋࡲࡓ 6L2 ⤌ᡂẚࡀቑຍࡍࡿ࡯࡝ࠊ࣐ࣛࣥᙉᗘࡣቑຍࡋࡓࠋ࣐ࣛࣥᙉᗘࡢቑ
ຍࡣ㸪6L2[ ⭷୰ 6L ࢼࣀ⤖ᬗ⢏⃰ᗘࡢቑຍࢆ♧ࡍࠋ6L2 ⤌ᡂẚࡀ኱ࡁ࠸࡯࡝ࠊ6L ࢼࣀ⤖ᬗ⢏⃰ᗘࡣቑຍࡍࡿ࡜⪃࠼

)LJ7KH5DPDQSHDNSRVLWLRQDVDIXQFWLRQRI

ࡽࢀࡿࠋ࡞࠾ࠊ6L ࢼࣀ⤖ᬗ⢏ࡢ⃰ᗘࡣ㔞Ꮚ࢝ࢵࢸ࢕ࣥࢢ

D6L2UDWLR>@ࡢ㢖ᗘ࡟ᙳ㡪ࢆ୚࠼ࡿ࡜⪃࠼ࡽࢀࡿࠋ
㌾㹖⥺↷ᑕ࡛ࡣࠊ㌾㹖⥺ᙉᗘࡢ㠃ෆ୙ᆒ୍ᛶ࡟ࡼࡿᒁ
ᡤࣇ࢛ࣀࣥྜᡂ࡜ෆẆ㟁Ꮚບ㉳࡟ࡼࡿࢡ࣮ࣟࣥ᩺ຊࡢຠ
ᯝ࡛ཎᏊ⛣ືࢆ⏕ࡌࡿࠋࡲࡓ⤖ᬗ໬ࡀ㉳ࡇࡿ࡟ࡣࠊ⮫⏺
༙ᚄ௨ୖ࡟ᡂ㛗ࡍࡿᚲせࡀ࠶ࡿࡀࠊ㌾㹖⥺↷ᑕ⤖ᬗ໬࡛ࡣ㟁Ꮚບ㉳࣭ཎᏊ⛣ືຠᯝ࡟ࡼࡾࠊᨃఝ⤖ᬗ᰾ࡀᙧᡂࡉ
ࢀࡿࡓࡵࠊ⮫⏺༙ᚄ௨ୖ࡟ᡂ㛗ࡍࡿࡓࡵࡢ࢚ࢿࣝࢠ࣮ࢆ
పῶ࡛ࡁࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡢࡓࡵ㌾㹖⥺↷ᑕ࡟ࡼࡾD6L2[ ⭷୰࡟ప ࡛ 6L ࢼࣀ⤖ᬗ⢏ࢆᙧᡂ࡛ࡁࡿྍ⬟ᛶࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ
⤖ㄽ

)LJ):+0RI5DPDQSHDNVDVDIXQFWLRQRID཯ᛂᛶࢫࣃࢵࢱἲ࡟ࡼࡾ▼ⱥᇶᯈୖ࡟ሁ✚ࡋࡓ 6L2[ ⭷6L2UDWLR࡟ࠊ㌾㹖⥺ࢆ↷ᑕࡋ 6L ࢼࣀ⤖ᬗ⢏ࢆᙧᡂࡋࡓࠋ࣐ࣛࣥศ
ගἲ࡟ࡼࡾᖹᆒ⢏ᚄ QP ࡢ 6L ࢼࣀ⤖ᬗ⢏ࢆᙧᡂ࡛ࡁ
ࡓࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡲࡓࠊ6L2 ⤌ᡂẚࡀ኱ࡁ࠸࡯࡝
6L ཎᏊ㛫ࡢ㊥㞳ࡀ㏆ࡃࠊจ㞟ࡋࡸࡍ࠸ࡓࡵ࡟ࠊ⤖ᬗ໬⋡࡜
6L2[ ⭷୰ 6L ࢼࣀ⤖ᬗ⢏ࡢ⃰ᗘࡣቑຍࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ
ࡲࡓࠊ6L2[ ୰ࡢ 6L ࢼࣀ⤖ᬗ⢏ࡢᙧᡂ࠾ࡼࡧࡑࡢ≉ᛶࡣࠊ
6L ࢼࣀ⤖ᬗ⢏6L2[ ⏺㠃ࡢ≉ᛶ࡟ᙳ㡪ࡉࢀࡿ࡜⪃࠼ࡽࢀࡿࠋ
6L ࢼࣀ⤖ᬗ⢏⃰ᗘࡣ㔞Ꮚ࢝ࢵࢸ࢖ࣥࢢࡢ㢖ᗘ࡟ᙳ㡪ࢆ୚࠼ࡿࡓࡵࠊ㌾㹖⥺↷ᑕ࡟ࡼࡿప ࡛ࡢ 6L2[ ⭷୰ 6L ࢼࣀ⤖ᬗ⢏ࡢᙧᡂࡣ㧗ຠ⋡ኴ㝧㟁ụ࡬ࡢࢹࣂ࢖ࢫᛂ⏝ࡀᮇᚅ࡛)LJ7KHFU\VWDOOLQHIUDFWLRQDQGWKH5DPDQࡁࡿࠋ>@10DWVXRHWDO'LJ$0/&'S

LQWHQVLW\RIF6LSHDNDVDIXQFWLRQRI6L2

>@01D]UXOHWDO-$SSO3K\V  

UDWLRLQWKH6L2[ILOPV>@'7LPPHUPDQHWDO1DW3KRWRQLFV  

㸦ඹྠ◊✲ศ㔝:⁐᥋ᶵᵓᏛ㸧

− 16 −

636 ᡂᙧࡋࡓ$Oࢲ࢖ࣖࣔࣥࢻ」ྜᮦᩱࡢ⇕ఏᑟ⋡࡟ཬࡰࡍࢲ࢖ࣖࣔࣥࢻࡢࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࡢᙳ㡪኱㜰ᕷ❧ᕤᴗ◊✲ᡤ ᮦᩱࣉࣟࢭࢩࣥࢢ◊✲ᐊ Ỉෆ ₩ ⥴ゝ
ᡃࠎࡣ᭱㏆㸪㧗⇕ఏᑟᛶࢆ᭷ࡍࡿᮦᩱ࡜ࡋ࡚㸪⌧Ꮡࡍࡿᮦᩱ୰᭱ࡶ㧗࠸⇕ఏᑟ⋡ Ȣ㸻:P. 㸪 ࢆ᭷ࡍࡿࢲ࢖ࣖ
ࣔࣥࢻ⢏Ꮚࢆ㸪㔠ᒓ୰࡟ศᩓࡋࡓࢲ࢖ࣖࣔࣥࢻ⢏Ꮚศᩓᆺ㔠ᒓᇶ」ྜᮦᩱࢆᨺ㟁ࣉࣛࢬ࣐↝⤖ἲ 636  ࢆ⏝࠸࡚ᡂᙧࡍࡿࡇ࡜࡟ࡼࡾ㸪ᨺ⇕ᛶ࡟ඃࢀࡓ㔠ᒓᇶ」ྜᮦᩱࡢ㛤Ⓨࢆ⾜ࡗ࡚ࡁࡓ  㸬ࡲࡓ㸪$O'LDPRQG ⣔ 㸪㸪 㸪$O$O1 ⣔㸪࠾ࡼࡧ㸪$OȘ6L& ⣔  ࡟࠾࠸࡚ࡣ㸪636 ᡂᙧ୰࡟ᅛᾮඹᏑ≧ែࢆᣢ⥆ࡉࡏࡿࡇ࡜ࡀ㸪┦ᑐᐦᗘࡢྥୖࡸ $O

࣐ࢺࣜࢵࢡࢫ඘ሸ⢏Ꮚ⏺㠃ᐦ╔ᛶࡢྥୖ࡟᭷ຠ࡟స⏝ࡍࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋ࡚ࡁࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪༢୍⢏Ꮚᚄ ࣔࣀ࣮ࣔࢲࣝ ࡢ඘ሸ⢏Ꮚࢆ⏝࠸ࡓሙྜ㸪඘ሸ⢏Ꮚࡢయ✚ศ⋡ࡀ 㸣ࢆ㉺࠼ࡿ࡜㸪」ྜᮦᩱࡢ┦ᑐᐦᗘࡢῶᑡ࡟ࡼࡾ⇕ఏᑟࡀపୗࡍࡿഴྥࡀㄆࡵࡽࢀ࡚࠸ࡿ㸬 ᮏ◊✲࡛ࡣ㸪࣐ࢺࣜࢵࢡࢫ࡜ࡋ࡚ $O ࢆ㸪඘ሸ⢏Ꮚ࡜ࡋ࡚  ✀㢮ࡢ⢏Ꮚᚄࢆ᭷ࡍ
ࡿࢲ࢖ࣖࣔࣥࢻ⢊ᮎࢆࡑࢀࡒࢀ㑅ᢥࡋ㸪๓ሗ࡛ሗ࿌ࡋࡓᣢ⥆ᆺᅛᾮඹᏑ≧ែࢆ฼⏝ࡋࡓ 636 ᡂᙧἲ 㸪㸪 ࢆ⏝࠸࡚㸪$Oࢲ࢖ࣖࣔࣥࢻ」ྜᮦᩱࢆᡂᆺࡋ㸪ࢲ࢖ࣖࣔࣥࢻࡢࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࡀ」ྜᮦᩱࡢ┦ᑐᐦᗘࡸ⇕ఏᑟ⋡࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚ㄪ࡭ࡓࡢ࡛ሗ࿌ࡍࡿ㸬 ᐇ㦂᪉ἲ
 ฟⓎᮦᩱ࡜ࡋ࡚ࡣ㸪 ✀㢮ࡢࢲ࢖ࣖࣔࣥࢻ⢊ᮎ ,06㸪ᖹᆒ⢏Ꮚᚄ ȣP㸪࠾ࡼࡧ㸪,00㸪ᖹᆒ⢏Ꮚᚄ ȣP㸪࠸ࡎࢀࡶࢺ࣮࣓࢖ࢲ࢖ࣖ ᰴ 〇 ࢆ඘ሸ⢏Ꮚ࡜ࡋ࡚⏝࠸ࡓ㸬ࡲࡓ㸪࣐ࢺࣜࢵࢡࢫ⏝ࡢฟⓎᮦᩱ࡜ࡋ࡚ࡣ㸪⣧ $O ⢊ᮎ 㸣PHVK୕ὠ࿴໬Ꮫ⸆ရ ᰴ 〇 㸪࠾ࡼࡧ㸪$OPDVV㸣6L ྜ㔠⢊ᮎ ᖹᆒ⢏Ꮚᚄ ȣPࣄ࢝ࣜ⣲ᮦᕤᴗ ᰴ 〇 ࢆ⏝࠸ࡓ࡞࠾㸪$OPDVV6L ྜ㔠⢊ᮎࡢ⇕ఏᑟ⋡ࡣ :P. ࡜ప࠸ࡓࡵ 㸧㸪ከ㔞ࡢ౑⏝ࡣ」ྜᮦᩱࡑࡢࡶࡢࡢ⇕ఏᑟ⋡ࢆపୗࡉࡏࡿྍ⬟ᛶࡀ࠶ࡿᮏ◊✲࡟࠾࠸࡚ࡢ $O6L ྜ㔠⢊ᮎࡢᙺ๭ࡣ㸪ᴟᑡ㔞ࡢᾮ┦ࢆྵ᭷ࡍࡿᅛᾮඹᏑ≧ែࢆ⥔ᣢࡍࡿࡇ࡜࡛࠶ࡿ࠿ࡽከ㔞࡟౑⏝ࡍࡿᚲせᛶࡣㄆࡵࡽࢀ࡞࠸㸬ࡋࡓࡀࡗ࡚࣐ࢺࣜࢡࢫ⢊ᮎ࡜ࡋ࡚ࡣ㸪⣧ $O ⢊ᮎ࡜ $O6Lྜ㔠⢊ᮎࢆయ✚ẚ࡛ 㸸 ࡢ๭ྜ࡛ΰྜࡋࡓΰྜ⢊ᮎࢆ⏝࠸ࡓ㸬 ࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࢆ᭷ࡍࡿࢲ࢖ࣖࣔࣥࢻ⢊ᮎࡢΰྜẚࡣ㸪ḟࡢࡼ࠺࡟Ỵᐃࡋࡓ㸬኱⢏Ꮚ࡜ᑠ⢏Ꮚࢆΰྜࡋࡓ㸰ᡂศ⢏Ꮚ඘ሸᒙࡢ✵㝽⋡ࢆΰྜศ⋡࡜ྛ⢏Ꮚࢆ༢⊂࡛඘ሸࡋࡓ㝿ࡢ✵㝽⋡࠿ࡽ᥎ᐃࡍࡿࡓࡵ࡟㸪௨ୗࡢ㸪)XUQDV ࣔࢹࣝᘧ  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  ࡀᚓࡽࢀࡿ㸬H 

  H
Sv(1)

ྠᵝ࡟㸪ᑠ⢏Ꮚ㛫࡟኱⢏Ꮚࡀΰᅾࡍࡿ࡜⪃࠼ࡿ࡜ḟᘧ  ࡀᚓࡽࢀࡿ㸬

H 

 H
  Sv  H (2)

ࡇࡇ࡛㸪Ȝ㸸኱⢏Ꮚࢆ༢⊂࡛඘ሸࡋࡓ㝿ࡢ✵㝽⋡㸪Ȝ㸸ᑠ⢏Ꮚࢆ༢⊂࡛඘ሸࡋࡓ㝿ࡢ✵㝽⋡㸪6Y㸸ΰྜ⢏Ꮚ୰ࡢ኱⢏Ꮚࡢయ✚ศ⋡࡛࠶ࡿ㸬)XUQDV ࡣ㸪ࡇࢀࡽࡢᘧ  㸪  ࡛⟬ฟࡋࡓ  ࡘࡢ✵㝽⋡ࡢ࠺ࡕ㸪኱ࡁ࡞᪉ࢆ⏝࠸ࡿࡇ࡜ࢆᥦ᱌ࡋ࡚࠸ࡿ㸬ᮏ◊✲࡛⏝࠸ࡓ  ✀㢮ࡢࢲ࢖ࣖࣔࣥࢻ⢊ᮎࢆ࣓ࢫࢩࣜࣥࢲ࣮࡟඘ሸࡋ㸪 ᅇࡢࢱࢵࣆࣥࢢࢆ⾜ࡗࡓ㝿ࡢ✵㝽⋡ࡣ㸪ࡑࢀࡒࢀ㸪Ȝ㸻㸣㸪Ȝ㸻㸣࡛࠶ࡗࡓ㸬ࡇࢀࡽࡢ್ࢆ⏝࠸࡚ΰྜ⢊ᮎࡢ✵㝽⋡ࢆィ⟬ࡋࡓ⤖ᯝࢆ )LJ㸬 ࡟♧ࡍ㸬኱⢏Ꮚࡢΰྜศ⋡ YRO㸣 ᑠ⢏Ꮚࡢΰྜศ⋡ YRO㸣 ࡟࠾࠸࡚㸪᭱ᑠࡢ✵㝽⋡  ࡀᚓࡽࢀࡿ㸬௨ୖࡼࡾ㸪ᮏ◊✲࡛ࡣ㸪 ✀㢮ࡢࢲ࢖ࣖࣔࣥࢻ⢊ᮎ⢏Ꮚࡢΰྜศ⋡ࢆ㸪኱⢏Ꮚ ┤ᚄ ȣP 㸸ᑠ⢏Ꮚ ┤ᚄ ȣP 㸻㸸 ࡜ࡋࡓ㸬− 17 −

 」ྜᮦᩱࡢᡂᙧࡣ௨ୗࡢᵝ࡟⾜ࡗࡓࠋࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢస〇⏝࡟ࡣ㸪๓㏙ࡢ㓄ྜẚ࡛ΰྜࡋࡓ  ✀㢮ࡢࢲ࢖ࣖࣔࣥࢻ⢊ᮎࡢΰྜయ ⢏Ꮚᚄ ȣP⢏Ꮚᚄ ȣP 㸪⣧ $㹪⢊ᮎ㸪࠾ࡼࡧ㸪$OPDVV6L ྜ㔠⢊ᮎࢆ㸪ࢲ࢖ࣖࣔࣥࢻయ
✚ศ⋡ࡀ඲యࡢ 㹼YRO㸣࡜࡞ࡿࡼ࠺࡞㓄ྜẚ࡛ΰྜࡋࡓΰྜ⢊ᮎࢆ⏝ពࡋࡓ㸬ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱࡢస〇⏝࡟ࡣ㸪኱⢏Ꮚᚄࡢࢲ࢖ࣖࣔࣥࢻ⢊ᮎ ⢏Ꮚᚄ ȣP 㸪⣧ $㹪⢊ᮎ㸪࠾ࡼࡧ㸪$OPDVV6L ྜ㔠⢊ᮎࢆ㸪ࢲ࢖ࣖࣔࣥࢻయ✚ศ⋡ࡀ඲యࡢ 㹼YRO㸣࡜࡞ࡿࡼ࠺࡞㓄ྜẚ࡛ΰྜࡋࡓΰྜ⢊ᮎࢆ⏝ពࡋࡓ㸬 ࡇࢀࡽࡢΰྜ⢊ᮎࢆࢢࣛࣇ࢓࢖ࢺࢲ࢖ࢭࢵࢺ୰࡟඘ሸࡋ㸪3D ࡢ┿✵୰࡛㸪ຍᅽຊ 03D㸪ᐊ ࠿ࡽ . ࡲ࡛ࡢ᪼㏿ᗘ .V㸪. ࠿ࡽ . ࡲ࡛ࡢ᪼ ㏿ᗘ .V ࡢ᮲௳࡛ 636 ᡂᙧࡋ㸪┤ᚄ PPཌࡉ⣙ PP ࡢࢹ࢕ࢫࢡ≧ヨᩱࢆస〇ࡋࡓ

ࡣ㸪ࢲ࢖ෆቨࡼࡾ PP ࡢ఩⨨ࡢࢲ࢖ ᗘࢆ . ᆺ⇕㟁ᑐ࡛ ᐃࡍࡿࡇ࡜࡟ࡼࡾ⾜࡞ࡗࡓ࡞࠾㸪.

࠿ࡽ . ࡲ࡛ࢆ᪼ ㏿ᗘ .V ࡛ప㏿ຍ⇕ࡍࡿࡢࡣ㸪๓ሗ࡛  ࡛ሗ࿌ࡋ࡚࠸ࡿ㏻ࡾ㸪ᡂᙧ୰࡟ $O ࣐ࢺࣜࢵࢡ
ࢫࡢᅛᾮඹᏑ≧ែࢆᣢ⥆ࡉࡏ㸪ᮦᩱ୰ࡢ࣏࢔ࢆຠ⋡Ⰻࡃ඘ሸࡍࡿࡓࡵ࡛࠶ࡿ㸬స〇ࡉࢀࡓࢹ࢕ࢫࢡ࡟ࡘ࠸࡚㸪┦ᑐᐦᗘࡢ ᐃ㸪6(0 -60/$ ࡟ࡼࡿ⤌⧊ほᐹ㸪࠾ࡼࡧ㸪࣮ࣞࢨ࣮ࣇࣛࢵࢩࣗἲ 8/9$&5,&2/DVHU3,7 ࡟ࡼࡿ⇕ఏᑟ⋡ࡢ ᐃࢆ⾜ࡗࡓ࡞࠾┦ᑐᐦᗘࡣ㸪࢔࣓ࣝ࢟ࢹࢫἲ JIS(K7112)ࡢ C ἲ(ᾋỿἲ))࡟ᇶ࡙࠸࡚」ྜᮦᩱࡢᐦᗘࢆࡲࡎ ᐃࡋ㸪ࡑࡢ್ࢆ㸪࣏ࣟࢩࢸ࢕࣮ࡀ↓࠸࡜௬ᐃࡋ࡚」ྜ๎࡟ࡼࡾィ⟬ࡋࡓ⌮ㄽᐦᗘࡢ್࡛㝖ࡍࡿࡇ࡜࡟ࡼࡾ⟬ฟࡋࡓ㸬 ⤖ᯝ࠾ࡼࡧ⪃ᐹ ⤌⧊࡜⏕ᡂ┦ $OYRO㸣ࢲ࢖ࣖࣔࣥࢻ」ྜᮦᩱࡢ 6(0 ࡟ࡼࡿ⤌⧊ほᐹ⤖ᯝࢆ )LJ㸬 ࡟♧ࡍ㸬)LJ㸬 D㸪E ࡟♧ࡍࡼ࠺࡟㸪ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱ㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱ㸪ඹ࡟⃰⅊Ⰽࡢࢲ࢖ࣖࣔࣥࢻ⢏Ꮚࡀῐ⅊Ⰽࡢ $O ୰࡟ศᩓࡋࡓ⤌⧊ࢆ࿊ࡋ࡚࠸ࡿ㸬)LJ㸬 F㸪G ࡣ㸪ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱ㸪࠾ࡼࡧ㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢ $Oࢲ࢖ࣖࣔࣥࢻ኱⢏Ꮚ⏺㠃ࡢᣑ኱෗┿ࢆ♧ࡋ࡚࠸ࡿ㸬ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜ㸪$Oࢲ࢖ࣖࣔࣥࢻ኱⢏Ꮚ⏺㠃࡟ከᩘࡢ࣏࢔ࡢṧᏑࡀㄆࡵࡽࢀࡿ㸬ࡇࢀ࡟ᑐࡋ㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜ㸪ࢲ࢖ࣖࣔࣥࢻ኱⢏Ꮚ㛫㝽࡟ࢲ࢖ࣖࣔࣥࢻᑠ⢏Ꮚࡀ඘ሸࡉࢀ㸪࣏࢔ࡢṧᏑࡣ㸪ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜࡼࡾᑡ࡞ࡃ࡞ࡗ࡚࠸ࡿ㸬ࡇࡢ⤖ᯝࡣ㸪$OYROࢲ࢖ࣖࣔࣥࢻ」ྜᮦᩱ࡟࠾࠸࡚ࡶྠᵝ࡛࠶ࡗࡓ㸬ࡇࢀࡣ㸪ࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࢆ᭷ࡍࡿࢲ࢖ࣖࣔࣥࢻ⢊ᮎ⢏Ꮚࢆ⏝࠸ࡓຠᯝ࡜ᛮࢃࢀࡿ㸬࡞࠾㸪6(0 ほᐹࡢ⠊ᅖෆ࡛ࡣ㸪$Oࢲ࢖ࣖࣔࣥࢻ⏺㠃࡟࠾࠸࡚㸪$O& ࡢ⏕ᡂ࡟ࡼࡿ࡜ᛮࢃࢀࡿ཯ᛂᒙࡣㄆࡵࡽࢀ࡞࠿ࡗࡓ㸬ᮏ◊✲࡛⏝࠸ࡓ㸪ᣢ⥆ᆺᅛᾮඹᏑ≧ែࢆ฼⏝ࡋࡓ 636 ᡂᙧἲ  ࡣ㸪ᅛ┦⋡ࡀᴟࡵ࡚㧗࠸ᅛᾮඹᏑ≧ែ࡛ࡢᡂᙧ࡛࠶ࡾ㸪࠿ࡘ㸪ᾮ┦ࡢᏑᅾ఩⨨ࡀ᫬ࠎ้ࠎ⛣ືࡍࡿࡓࡵ㸪$Oࢲ࢖ࣖࣔࣥࢻ⏺㠃཯ᛂࡢ⏕ࡌ࡟ࡃ࠸ᡂᙧ᪉ἲ࡜⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ࢼࣀࢧ࢖ࢬࡢ $O& ⢏Ꮚࡀ $Oࢲ࢖ࣖࣔࣥࢻ⏺㠃࡟ᚤ㔞࡟⏕ᡂࡋ࡚࠸ࡿሙྜ㸪; ⥺ᅇᢡ࡛ࡣ࡜ࡽ࠼࡟ࡃ࠸࡜ᛮࢃࢀࡿ㸬ࡋࡓࡀࡗ࡚㸪$O& ࡢᏑᅾࡢ☜ㄆ࡟ࡣ㸪7(0 ࡜ 67(0('; ࢆే⏝ࡋࡓヲ⣽࡞ほᐹࡀᚲせ࡜⪃࠼ࡽࢀࡿ㸬 ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡࡜」ྜᮦᩱࡢ┦ᑐᐦᗘ࡜ࡢ㛵ಀ )LJ㸬
 ࡣ㸪
636 ᡂᙧࡋࡓ $Oࢲ࢖ࣖࣔࣥࢻ」ྜᮦᩱࡢ┦ᑐᐦᗘࡢࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡࡜ࡢ㛵ಀࢆ♧ࡋ࡚࠸ࡿࣔ
ࣀ࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡀ 㹼㸣ࡢ⠊ᅖෆ࡟࠾࠸࡚ࡣ㸪㸣ࢆ㉺࠼ࡿ┦ᑐᐦᗘࡀᚓࡽ
ࢀࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡀ 㸣ࢆ㉺࠼ࡿ࡜㸪」ྜᮦᩱࡢ┦ᑐᐦᗘࡣࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡢቑ኱࡜ඹ࡟ῶᑡࡋ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ 㸣࡛┦ᑐᐦᗘࡣ 㸣࡟㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ 㸣࡛ࡣ┦ᑐᐦᗘࡣ 㸣࡟ࡲ࡛㸪ࡑࢀࡒࢀపୗࡋࡓ㸬୍᪉㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜࡣ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ 㸣ࡲ࡛㸪┦ᑐᐦᗘࡣ 㸣௨ୖࢆ⥔ᣢࡍࡿ㸬๓㏙ࡢ⤌⧊ほᐹ⤖ᯝ࡟ࡶ⾲ࢀ࡚࠸ࡿࡼ࠺࡟㸪ࢲ࢖ࣖࣔࣥࢻ⢊ᮎࡢࣂ࢖࣮ࣔࢲ
ࣝ࡞⢏ᗘศᕸࡀ」ྜᮦᩱࡢ┦ᑐᐦᗘࡢྥୖ࡟ᐤ୚ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬 ⇕ఏᑟ⋡
 $Oࢲ࢖ࣖࣔࣥࢻ」ྜᮦᩱࡢ⇕ఏᑟ⋡࡜ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡࡜ࡢ㛵ಀࢆ )LJ ࡟♧ࡍ㸬)LJ㸬 ୰࡟ࡣ㸪⇕ఏᑟ⋡ࡢᐇ ್ࢆ‫ۑ‬㸪࠾ࡼࡧ㸪‫࡜ࡍ♧࡛ࢺࢵࣟࣉە‬ඹ࡟㸪0D[ZHOO(XFNHQ ࡢ⌮ㄽᘧ  ࡟ࡼࡿィ⟬್ࡶ㸪᭤⥺࡛ྜࢃࡏ࡚

− 18 −

♧ࡋࡓ㸬)LJ㸬 ୰ࡢ  ᮏࡢ᭤⥺ࡣࠊ0D[ZHOO(XFNHQ ࡢᘧ࡟ࡼࡿ⌮ㄽィ⟬್ࢆࠊ㸣㸪㸣㸪㸣㸪㸣㸪㸣‶㊊ࡍ
ࡿ್ࢆࡑࢀࡒࢀ♧ࡋ࡚࠸ࡿ㸬ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱ࡟࠾࠸࡚ࡣ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ 㹼YROࡢ⠊ᅖෆ࡟࠾࠸࡚㸪」ྜᮦᩱࡢ⇕ఏᑟ⋡ࡣ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡢቑ኱࡜ඹ࡟༢ㄪ࡟ቑຍࡋ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡
YRO࡟࠾࠸࡚ :P. ࡢ⇕ఏᑟ⋡ࡀᚓࡽࢀࡿ㸬ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱ࡛ࡣ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ 㹼㸣ࡢ⠊ᅖ࡟࠾࠸࡚㸪⇕ఏᑟ⋡ࡢᐇ ್ࡣ⌮ㄽ್ࡢ 㸣௨ୖࢆ‶㊊ࡋ࡚࠸ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡀYROࢆ㉺࠼ࡿ࡜㸪」ྜᮦᩱࡢ⇕ఏᑟ⋡ࡣ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡢቑ኱࡜ඹ࡟ῶᑡࡍࡿ㸬୍᪉㸪ࣂ࢖࣮ࣔࢲࣝ
」ྜᮦᩱࡢሙྜࡣ㸪⇕ఏᑟ⋡ࡣ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ 㹼YROࡢ⠊ᅖ࡟࠾࠸࡚ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡢቑ኱࡜ඹ࡟ቑຍࡋ㸪$OYROࢲ࢖ࣖࣔࣥࢻ」ྜᮦᩱ࡟࠾࠸࡚㸪᭱㧗ࡢ⇕ఏᑟ⋡ :P. ࡀᚓࡽࢀࡓ㸬ࡇࢀࡶ㸪ࢲ࢖ࣖࣔࣥࢻ⢊ᮎࡢࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࡢᙳ㡪࡜ᛮࢃࢀࡿ㸬ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜࡣ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡㹼㸣ࡢ⠊ᅖ࡟࠾࠸࡚㸪⇕ఏᑟ⋡ࡢᐇ ್ࡣ⌮ㄽ್ࡢ 㸣௨ୖࢆ‶㊊ࡋ࡚࠸ࡿ㸬࡞࠾㸪௒ᅇ⏝࠸ࡓࣂ࢖࣮ࣔࢲࣝ࡞
ࢲ࢖ࣖࣔࣥࢻ⢊ᮎ୰ࡢ኱⢏Ꮚ࡜ᑠ⢏Ꮚࡢ㓄ྜẚࡣ㸪๓㏙ࡢࡈ࡜ࡃ㸪㸸 ࡛࠶ࡿ㸬ࡋࡓࡀࡗ࡚㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦ
ᩱ୰᭱㧗ࡢ⇕ఏᑟ⋡ࡀᚓࡽࢀࡓ $OYROࢲ࢖ࣖࣔࣥࢻ」ྜᮦᩱ୰ࡢࢲ࢖ࣖࣔࣥࢻ኱⢏Ꮚࡢయ✚ศ⋡ࡣ YRO࡛࠶ࡿ㸬ࡋࡓࡀࡗ࡚㸪௒ᅇࡢࢲ࢖ࣖࣔࣥࢻ኱⢏Ꮚ ┤ᚄ ȣP ࢆ⏝࠸࡚㸪ᣢ⥆ᆺᅛᾮඹᏑ≧ែ࡛ 636 ᡂᙧࡍࡿ࡜࠸࠺᮲
௳࡟࠾࠸࡚ࡣ㸪ࣔࣀ࣮ࣔࢲࣝ࡟࠾࠸࡚ࡶࣂ࢖࣮ࣔࢲࣝ࡟࠾࠸࡚ࡶ㸪㧗⇕ఏᑟ⋡ࢆᚓࡿࡓࡵ࡟」ྜᮦᩱ୰࡟ྵࡲࢀࡿࢲ࢖
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ࡽ࠿࡟ࡋࡓ ࢲ࢖ࣖࣔࣥࢻ⢊ᮎ㸪⣧ $O ⢊ᮎ㸪ཬࡧ㸪$OPDVV6L ⢊ᮎࡢΰྜ⢊ᮎࡣ㸪636 ࡟ࡼࡾຍᅽຊ 03D㸪3D ࡢ┿✵୰࡛㸪ຍᅽຊ 03D㸪ᐊ ࠿ࡽ . ࡲ࡛ࡢ᪼ ㏿ᗘ .V㸪. ࠿ࡽ . ࡲ࡛ࡢ᪼ ㏿ᗘ .V ࡢ᮲௳࡛⦓ᐦ໬࡛ࡁࡿ 6(0 ほᐹࡢ⠊ᅖෆ࡛ࡣ $Oࢲ࢖ࣖࣔࣥࢻ⏺㠃཯ᛂᒙࡢᙧᡂࡣほᐹࡉࢀ࡞࠿ࡗࡓ㸬 ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱ࡛ࡣ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡀ YROࢆ㉺࠼ࡿ࡜┦ᑐᐦᗘࡀ 㸣௨ୗ࡟పୗࡍࡿࡀ㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱࡢሙྜ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ YROࡲ࡛ 㸣௨ୖࡢ┦ᑐᐦᗘࢆ⥔ᣢ࡛ࡁࡓ㸬 ࣔࣀ࣮ࣔࢲࣝ」ྜᮦᩱ࡛ࡣ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡀ YRO࡟࠾࠸࡚᭱㧗ࡢ⇕ఏᑟ⋡ :P. ࡀᚓࡽࢀࡓ㸬୍᪉㸪ࣂ࢖࣮ࣔࢲࣝ」ྜᮦᩱ࡛ࡣ㸪ࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡀ YRO࡟࠾࠸࡚᭱㧗ࡢ⇕ఏᑟ⋡ :P. ࡀᚓࡽࢀࡓ㸬 ⇕ఏᑟ⋡࡟㛵ࡋ࡚ࡣ㸪ࢲ࢖ࣖࣔࣥࢻࡢࣂ࢖࣮ࣔࢲࣝ࡞⢏ᗘศᕸࡣ㸪」ྜᮦᩱ୰ࡢࢲ࢖ࣖࣔࣥࢻ⢏Ꮚయ✚ศ⋡ࡀYRO௨ୖ࡛᭷ຠ࡛࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬

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Fig. 1 Changes in the porosity of diamond powder
mixtures composed of large sized particles (310Ȟm)and small sized particles (34.8Ȟm) as a function of thevolume fraction of large diamond particles in the
diamond powder mixture. 34.3% (ı1 ) at 100% of v1
and 40.0% (ı2) at 0% of v1 were experimentallyobtained after one hundred times of tapping.

Fig. 2  SEM micrographs of Al-60vol.% diamond composites
fabricated by spark plasma sintering (SPS). Monomodal (a, c)and bimodal (b, d). Note that small dark regions in Fig. 5b are
small diamond particles.

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Fig. 3 Changes in relative packing density of
Al-matrix composite with dispersed diamondparticles fabricated by spark plasma sintering asa function of the volume fraction of diamond in
the composite.

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Fig㸬4  Experimental measurements and theoretical valuesof the thermal conductivity dependence on the volume
fraction of diamond for diamond-particle-dispersed Al-matrix
composite. Solid and dotted lines are various percentagesof the theoretical values calculated from Maxwell-Eucken
equation.

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࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈࡢ༢ศᩓ໬ࣉࣟࢭࢫ࡟ࡼࡿ㔠ᒓᇶ」ྜᮦᩱࡢ๰〇࡜≉ᛶゎᯒ
༢ศᩓ &17 ࢆ฼⏝ࡋࡓ㔠ᒓᮦᩱࡢ㧗ᶵ⬟Ⓨ⌧ᶵᵓࡢゎ᫂㸫ᑠᚄ &17 ࢆ฼⏝ࡋࡓࢳࢱࣥ⾲㠃ࡢࢼࣀࢫࢣ࣮ࣝᵓ㐀ࡀ⣽⬊௜╔ቑṪ࡟ཬࡰࡍᙳ㡪㸫
1 ໭ᾏ㐨኱Ꮫ⑓㝔ṑ࿘࣭ṑෆ⒪ἲ⛉㸪2 ໭ᾏ㐨኱Ꮫ኱Ꮫ㝔ṑᏛ◊✲⛉ṑ࿘࣭ṑෆ⒪ἲᏛᩍᐊᐑ἞⿱ྐ 1㸪す⏣⤮฼㤶 2㸯㸬┠ⓗࣂ࢖࣐࢜ࢸࣜ࢔ࣝ⾲㠃ࡢࢼࣀᵓ㐀໬ࡣ㸪⾲㠃✚ቑ኱ࡸ⏕యάᛶ≀㉁ࡢ྾╔࡟ࡼࡾ⏕≀Ꮫⓗ≉ᛶࢆᙉࡃྥୖࡍࡿࡇ
࡜ࡀ▱ࡽࢀ࡚࠸ࡿ㸬ࡑࡇ࡛ࢳࢱࣥ㸦Ti㸧࡜⏕యࡢ࢖ࣥࢱ࣮ࣇ࢙࣮ࢫࡢ㐺ྜᛶྥୖࡢࡓࡵ㸪ᡃࠎࡣ Ti ⾲㠃࡟༢ศᩓ࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈ㸦CNT㸧ࢆࢥ࣮ࢸ࢕ࣥࢢᚋ⇕ฎ⌮ࡋ࡚ࢼࣀᚤ⣽ᵓ㐀ࡢᵓ⠏࡟ᡂຌࡋ㸪⾲㠃࡬ࡢ⣽⬊௜╔ᛶࡀྥୖࡍࡿࡇ࡜ࢆሗ࿌ࡋࡓ 1, 2㸬ࡲࡓ㸪┤ᚄࡢ␗࡞ࡿ CNT ࢆ⏝࠸ࡓሙྜ⏕య཯ᛂࡀ␗࡞ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡾ㸪┤ᚄࡢᑠࡉ࠸ CNT ࡛Ⰻዲ࡞⏕య㐺ྜᛶࢆ♧ࡋࡓ 3-5㸬ࡑࡇ࡛௒ᅇࡣ␗࡞ࡿ⃰ᗘࡢᑠᚄ CNT ศᩓᾮࢆ⏝࠸࡚ࢼࣀᚤ
⣽ᵓ㐀ࢆ Ti ⾲㠃࡟స〇ࡋ㸪⣽⬊௜╔ᛶ㸪ቑṪᛶ࡟ཬࡰࡍຠᯝ࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓ㸬㸰㸬◊✲᪉ἲ
⣧ Ti ࣉ࣮ࣞࢺ㸦Ǘ8.0㸪ཌࡉ 1mm㸹ࢽࣛࢥ㸧ࡢ⾲㠃࡟㸪ከᒙ CNT ࡛࠶ࡿ Nanocyl NC7000㸦0.2, 1 wt %㸪┤ᚄ
9.5nm㸹Nanocyl㸪Belgium㸧࡜ Flotube 9000㸦0.2㸪1 wt %㸪┤ᚄ 11 nm㸹Cnano Technology㸪USA㸧ࡢศᩓᾮࢆᆒ୍࡟ሬᕸࡋ㸪኱Ẽ୰࡛஝⇱ᚋ㸪825Υ࡛┿✵⇕ฎ⌮ࡋ࡚ࢥ࣮ࢸ࢕ࣥࢢࢆ⾜ࡗࡓ㸬ࡲࡓ㸪Nanocyl 1wt%ࢆሬ
ᕸᚋ㸪࢚ࢱࣀ࣮ࣝ㉸㡢ἼὙίࢆ 30 ⛊⾜࠸㸪850Υ࡛⇕ฎ⌮ࡋࡓ㸬ྛヨᩱࡢࢥ࣮ࢸ࢕ࣥࢢ㠃ࢆ SEM㸪XRD ࡟࡚ほᐹࢆ⾜ࡗࡓ㸬ࡉࡽ࡟㸪MC3T3-E1 ⣽⬊ࢆྛヨᩱ࡟᧛✀ᇵ㣴ᚋ㸪SEM ࡟࡚⣽⬊ᙧែࢆほᐹ㸪⣽⬊ቑṪ㔞ࡢ ᐃࢆ⾜ࡗࡓ㸬㸱㸬◊✲⤖ᯝ
1wt%CNT ࡛⿕そࡋࡓ Ti ࡣ㯮ኚࡋ㸪0.2wt%CNT ࠾ࡼࡧ࢚ࢱࣀ࣮ࣝ
Ὑίฎ⌮ᚋࡢ Ti ࡛ࡣኚⰍࡣᑡ࡞࠿ࡗࡓ㸦Fig1㸧
㸬SEM ほᐹ࡟࠾࠸࡚㸪
1wt%CNT ࢥ࣮ࢸ࢕ࣥࢢᚋࡢࢧࣥࣉ࡛ࣝࡣᆒ୍࡞ CNT-ࢿࢵࢺᵓ㐀ࡀᙧᡂࡉࢀ࡚࠸ࡓ㸬0.2wt%࠾ࡼࡧ࢚ࢱࣀ࣮ࣝὙίฎ⌮ᚋࡢ Ti ⾲㠃࡟ࡶ

Fig1. CNT ࢥ࣮ࢸ࢕ࣥࢢ Ti ࣉ࣮ࣞࢺCNT ࡢ 3 ḟඖࢼࣀᚤ⣽ᵓ㐀ࢆ☜ㄆࡋࡓࡀ㸪CNT ࡣᩓᅾࡋ࡚ㄆࡵࡽࢀ㸪
CNT ⿕⭷ࡀⷧࡃ኱㒊ศࡀᅛ⁐ࡋࡓ࡜⪃࠼ࡽ࠼ࡓ (Fig2)㸬

Fig2. SEM ほᐹ

Fig3. XRD
XRD ࣉࣟࣇ࢓࢖ࣝࡼࡾࡍ࡭࡚ࡢ Ti ࣉ࣮ࣞࢺ࡛Ⅳ໬ࢳࢱࣥ㸦TiC㸧ࡢ⏕ᡂࢆㄆࡵ㸪CNT ࡜ Ti ࡢᅛ┦཯ᛂ࡟ࡼࡾ⏕ᡂࡉࢀࡓࡶࡢ࡜⪃࠼ࡽࢀ㸪Nanocyl㸪Flotube ࡜ࡶ࡟ Ti ⾲㠃࡟ᙉࡃᅛ╔ࡋ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ (Fig3)㸬

− 22 −

ྛࣉ࣮ࣞࢺ࡟ MC3T3-E1 ⣽⬊ࢆ
1×104 ಶ᧛✀ࡋ㸪24 ᫬㛫ᚋࡢ≧ែࢆ
SEM ࡟࡚ほᐹࡋࡓ㸬CNT ࢥ࣮ࢸ࢕ࣥࢢࡢ⤖ᯝ㸪Ti ࡟ẚ㍑ࡋ࡚⣽⬊௜╔ࡣⰋዲ࡛࠶ࡗࡓ㸬≉࡟ 0.2wt%ࡢ
Nanocyl㸪Flotube ヨᩱ࡛ከࡃࡢ⣽⬊௜╔ࢆほᐹࡋࡓ㸬ࡲࡓ㸪Nanocyl࢚ࢱࣀ࣮ࣝὙίヨᩱ࡛ࡶ⣽⬊௜╔ࡣㄆࡵࡓࡀ㸪 0.2wt%ࡢ Nanocyl㸪
Flotube ヨᩱ࡟ẚ㍑ࡋ࡚ᑡ࡞࠿ࡗࡓ
(Fig4)㸬

Fig4. SEM ほᐹ㸦⣽⬊᧛✀ᚋ㸧

Fig5. ࣉࣟࣜࣇ࢓࣮ࣞࢩࣙࣥ࢔ࢵࢭ࢖
ᇵ㣴 1㸪7㸪14 ᪥┠࡟ࣉࣟࣜࣇ࢓࣮ࣞࢩࣙࣥ࢔ࢵࢭ࢖ࢆ⾜ࡗࡓ⤖ᯝ㸪0.2wt%ࡢ Nanocyl㸪Flotube ࢥ࣮ࢸ࢕ࣥࢢ㸪
1wt%Nanocyl ࢚ࢱࣀ࣮ࣝὙίヨᩱ࡛Ⰻዲ࡞⣽⬊ቑṪࢆ♧ࡋࡓ㸬୍᪉࡛㸪1wt%CNT ฎ⌮ヨᩱ࡛ࡣ 0.2wt%ࡼࡾࡶቑṪࡣᢚไࡉࢀࡓ㸬ྠࡌ⃰ᗘࡢ Nanocyl ࡜ Flotube ࢥ࣮ࢸ࢕ࣥࢢヨᩱࢆẚ㍑ࡋ࡚ࡶᕪࡣㄆࡵࡽࢀ࡞࠿ࡗࡓ (Fig5)㸬

㸲㸬⤖ㄽ
2 ✀㢮ࡢᑠᚄ CNT ࢆ⏝࠸࡚ Ti ⾲㠃ࡢࢥ࣮ࢸ࢕ࣥࢢฎ⌮ࢆ⾜ࡗࡓ⤖ᯝ㸪୧⪅࡜ࡶ࡟ Ti ⾲㠃࡟ࢼࣀᚤ⣽ᵓ㐀ࢆᵓ⠏࡛ࡁࡓ㸬0.2wt%ࡢྛ CNT ࠾ࡼࡧ࢚ࢱࣀ࣮ࣝὙίヨᩱ࡛ࡣ㸪1wt%CNT ヨᩱ࡜ẚ㍑ࡋ࡚⾲㠃࡟࠾ࡅࡿ⣽⬊௜╔ᛶ࠾ࡼࡧ⣽⬊ቑṪᛶࡀⰋዲ࡛࠶ࡗࡓ㸬௨ୖࡼࡾప⃰ᗘ CNT ࢥ࣮ࢸ࢕ࣥࢢࡣⰋዲ࡞⏕య㐺ྜᛶࢆ♧ࡍࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ㸬㸦ཧ⪃ᩥ⊩㸧
1)  E Nishida, H Miyaji, J. Umeda, K. Kondoh et al. Preparation and biological evaluation of titanium
coated with CNT-net, AAP, 2012.
2)  ᐑ἞⿱ྐ㸪す⏣⤮฼㤶㸪ᱵ⏣⣧Ꮚࡽ㸪࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈࢥ࣮ࢸ࢕ࣥࢢࢳࢱࣥࡢ⏕యᛂ⏝㸪᪥ᮏࣂ࢖࢜
࣐ࢸࣜ࢔ࣝᏛ఍㸪2012.
3)  す⏣⤮฼㤶㸪ᐑ἞⿱ྐ㸪ᱵ⏣⣧Ꮚࡽ㸪ࢳࢱࣥ⾲㠃ࡢ࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈࢥ࣮ࢸ࢕ࣥࢢ࡜⏕య㐺ྜᛶホ౯㸪᪥ᮏ෌⏕་⒪Ꮫ఍㸪2014.
4)  H Miyaji, E Nishida, J. Umeda, K. Kondoh et al. Bioactive titanium surface using carbon nanotube net
film. Visual-JW 2014, 2014.
5)  E Nishida, H Miyaji, J. Umeda, K. Kondoh et al. Biocompatibility of CNT-Ti composite surface withdifferent nanomorphologies. IADR, 2015.

㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 23 −

ᤄධ䞉Ⰽ⣬

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䠅䠅䛆◊✲┠ⓗ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⣴ࡸࠊእ㒊่⃭࡟ࡼࡗ࡚᥋ྜᙉᗘࢆྍኚ࡟ไ
ᚚ࡛ࡁࡿ᥋ྜᮦᩱ㸦౛㸸☢ᛶ⢏Ꮚศᩓ⣔ࡢᶵ⬟ᛶὶయ㸧ࡢ㛤Ⓨ࡞࡝ࡀᣲࡆࡽࢀ
ࡿࠋᮏ◊✲ㄢ㢟࡛ᚓࡽࢀࡿᡂᯝࡣࠊᖖ

ࡸྍ㏫࡞᥋ྜ⛉Ꮫࡢᵓ⠏࡟ࡶᐤ୚ࡍࡿ

ࡶࡢ࡜ᮇᚅࡉࢀࡿࠋ
䛆ᡂᯝᴫせ䛇
ᮏᖺᗘ䛿䚸䜎䛪㛵㐃ศ㔝䛻䛚䛡䜛◊✲ືྥ䛾ㄪᰝ䜢⾜䛖䛣䛸䜢୺䛺┠ⓗ䛸䛧䛯䚹ලయⓗ䛻䛿䚸2 ᅇ䛾◊✲㞟఍䜢⢊యᕤᏛ఍䚸䝇䝬䞊䝖䝥䝻䝉䝇Ꮫ఍䛸㐃ᦠ䛧䛶㛤ദ䛧䚸␗ศ㔝䛾◊✲⪅䚸ᢏ⾡⪅䛸䛾஺ὶ䛻䜘䜚◊✲ືྥ䜢ㄪᰝ䛧䛯䚹䛭䛾⤖ᯝ䚸እ㒊่⃭䛻䜘䜛ྍ㏫ⓗ䛺᥋ྜᢏ⾡䛸䛧䛶䚸☢Ẽ⢓ᛶὶయ䛜ά⏝ྍ⬟䛺䛣䛸䜢♧䛧䛯䚹䜎䛯䚸⢏Ꮚ䛾⾪✺ᅛ໬䛻䜘䜛ᖖ䛷䛾ᡂ⭷䝥䝻䝉䝇䜔ᶵᲔⓗᡭἲ䛻䜘䜛㠀ຍ⇕䛾⢏Ꮚ᥋ྜ䛻

䜘䜛」ྜ⢏Ꮚ䛾≉ᛶไᚚ䛜䚸እ㒊ຍ⇕䜢せ䛧䛺䛔᪂᥋ྜᢏ⾡䛸䛧䛶ᮇᚅ䛷䛝䜛䛣䛸䜢♧䛧䛯䚹䛥䜙䛻䚸⏕≀䛻Ꮫ䜆᥋ྜ䞉ศ㞳⌧㇟䛾᳨ウ䛸䛧䛶䚸䜹䝍䝒䝮䝸䛾Ẇ䛻䜏䜛㜵ở䝯䜹䝙䝈䝮䜔ᚤ⏕≀䛾௚ᮦᩱ䜈䛾௜╔⌧㇟䛺䛹䛻ᑐ䛩䜛⌮ゎ䜢῝䜑䛯䚹䛭䛾௚䚸ᚤ⢏Ꮚ䛾ᾮ୰ศᩓไᚚ䛾䛯䜑䛾⢏Ꮚ⏺㠃タィ䚸་⸆ရ䛻䛚䛡䜛⸆≀㏦㐩䝅䝇䝔䝮䚸ᶞ⬡䚸㔠ᒓ䚸䝉䝷䝭䝑䜽䝇➼䛾」ྜᮦᩱ䛾㛤Ⓨ䛻䛚䛡䜛⏺㠃ไᚚ䛾◊✲ᡂᯝ䛺䛹䛻䛴䛔䛶䜒᝟ሗ䜢ྲྀ㞟䛧䛯䚹ḟᖺᗘ䛿䚸䛣䜜䜙䛾ㄪᰝ䜢ᅜ㝿ⓗ䛺ほⅬ䛛䜙ᒎ㛤䛧䛶◊✲⪅䝁䝭䝳䝙䝔䜱䞊䛾ᙧᡂ䛻㈉⊩䛩䜛䛸䛸䜒䛻䚸ᚤ⢏Ꮚ⏺㠃䜢฼⏝䛧䛯ຍ⇕䜢せ䛧䛺䛔䝋䝣䝖䛺᥋ྜᢏ⾡䛾◊✲䛺䛹䛻╔ᡭ䛩䜛୰䛷䚸◊✲ෆᐜ䜢䛥䜙䛻῝䜑䛶䛔䛝䛯䛔䚹

SOFC ᮦᩱᚤ⢏Ꮚࡢྜᡂ࡜≉ᛶホ౯኱㜰ᗓ❧኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ ≀㉁࣭໬Ꮫ⣔ᑓᨷ ໬ᏛᕤᏛศ㔝㊊❧ඖ᫂ࠊᮌୗ༟ஓࠊ෇Ꮚᘯ႐㸯㸬┠ⓗᅛయ㓟໬≀⇞ᩱ㟁ụ(SOFC)ࡣࠊ㈗㔠ᒓゐ፹ࡀ୙せࠊ㧗ຠ⋡Ⓨ㟁≉ᛶࡀྍ⬟➼ࠊ௚ࡢ⇞ᩱ㟁ụ࡟ࡣ↓࠸≉ᚩࢆ᭷ࡍࡿࡀࠊ୍᪉࡛ 1000Υ๓ᚋࡢ㧗
࡟ࠊసື

ᗘࡢప

࡛ࡋ࠿సື࡛ࡁ࡞࠸࡜࠸࠺▷ᡤࢆࡶࡘࠋࡇࡢၥ㢟ⅬࢆゎỴࡍࡿࡓࡵ໬ࡀヨࡳࡽࢀ࡚࠸ࡿࠋࡇࡢప

໬࡟ࡣࠊ㟁ᴟᮦᩱ࡟ࡘ࠸࡚ࡣప

ሙ࡛㧗࠸ゐ፹཯ᛂᛶࢆ

ࡶࡘ࡜ඹ࡟ࠊ࢞ࢫ࡜ࡢ᥋ゐ㠃✚ࢆቑࡸࡍࡓࡵ࡟ከᏍ㉁ᵓ㐀ࢆᣢࡘࡇ࡜ࡀ㔜せ࡜ࡉࢀ࡚࠾ࡾࠊ⏦ㄳ⪅ࡽࡣ᪂つྜᡂἲࡢ㛤Ⓨࢆヨࡳ࡚࠸ࡿ 1,2,3)ࠋᮏ◊✲࡛ࡣࠊ⏦ㄳ⪅ࡽࡀྜᡂ࡟ᡂຌࡋࡓ LaSrCoFe ⣔ࠊLaCaMn ⣔ከᏍ㉁⢏Ꮚ㸦࠸ࡎࢀࡶ✵Ẽᴟᮦᩱ㸧࠾ࡼࡧ NiO-GdCe ⣔ከᏍ㉁⢏Ꮚ㸦⇞ᩱᴟᮦᩱ㸧ࡢ཯ᛂ≉ᛶࢆホ౯ࡍࡿࠋ㸰㸬◊✲᪉ἲ
⏦ㄳ⪅ࡽࡀ㛤Ⓨࡋࡓࢡ࢚ࣥ㓟ῧຍᄇ㟝⇕ศゎ(CA-USP)ἲ 4)࡟ࡼࡾྜᡂࡋࡓ LaSrCoFe ⣔ࠊLaCaMn ⣔ከᏍ㉁⢏Ꮚ㸦✵Ẽᴟ㸧࠾ࡼࡧ NiO-GdCe ⣔ከᏍ㉁⢏Ꮚ㸦⇞ᩱᴟ㸧4,5)ࢆ⏝࠸࡚ࠊෆ⸨ᩍᤵ࡜ඹྠ࡛㟁ゎ㉁ᨭᣢ
ᆺࣘࢽࢵࢺࢭࣝࢆస〇ࡋࠊࡑࡢస〇᮲௳㸦↝ᡂᗘ㸧࠾ࡼࡧ⢏Ꮚྜᡂ࡟࠾ࡅࡿࢡ࢚ࣥ㓟ῧຍࡀࣘࢽࢵࢺࢭࣝ

ࡢ཯ᛂ≉ᛶ࡟୚࠼ࡿᙳ㡪ࢆホ౯ࡋࡓࠋNiO-GdCe ⣔ከᏍ㉁⢏Ꮚ㸦⇞ᩱᴟ㸧ࢆ YSZ 㟁ゎ㉁ᇶᯈ࡟ࢫࢡ࣮ࣜࣥ༳
ๅἲ࡛ሬᕸࡋࠊ1300Υ࡛ 2 ᫬㛫↝ᡂࡋࡓᚋࠊᇶᯈࡢ཯ᑐഃ࡟ LaSrCoFe ⣔ࡲࡓࡣ LaCaMn ⣔ከᏍ㉁⢏Ꮚ㸦✵Ẽᴟ㸧ࢆሬᕸࡋࠊ↝ᡂ

ᗘࢆ 1000㹼1200Υ࡜ኚ࠼࡚ᅗ 1 ࡟♧ࡍࡼ࠺࡞ࣘࢽࢵࢺࢭࣝࢆస〇ࡋࡓࠋ࡞࠾ࠊ2 ᅇ┠ࡢ↝ᡂ᫬㛫ࡣ 2 ᫬㛫୍࡛ᐃ࡟ಖࡗࡓࠋస〇ࡋࡓࢭࣝࡢ཯ᛂ᢬ᢠࢆ஺ὶ࢖ࣥࣆ࣮ࢲࣥࢫ

ᐃἲ࡟ࡼࡾ

ᐃࡋ

ࡓࠋࡲࡓࠊ⢏Ꮚྜᡂ᫬࡟࠾ࡅࡿࢡ࢚ࣥ㓟ῧຍࡀ཯ᛂ᢬ᢠ࡟୚࠼ࡿᙳ㡪ࢆㄪ࡭ࡿࡓࡵ࡟ࠊࢡ࢚ࣥ㓟↓ῧຍ࡛ྜᡂࡋࡓ LaSrCoFe ⣔࠾ࡼࡧ LaCaMn ⣔⢏Ꮚࢆ✵Ẽᴟ࡟⏝࠸࡚స〇ࡋࡓࣘࢽࢵࢺࢭࣝࡢ཯ᛂ᢬ᢠࢆㄪ࡭ࡓࠋ
ࣘࢽࢵࢺࢭࣝࡢస〇࡛⏝࠸ࡓ LaCaMn ⣔⢏Ꮚ࡜ NiO-GaCe ⣔⢏Ꮚࡢ TEM ෗┿ࢆᅗ 2 ࡟♧ࡍ 3,4)ࠋࢡ࢚
ࣥ㓟↓ῧຍ(CCA=0 M)࡛ྜᡂࡋࡓ⢏Ꮚࡣෆ㒊ࡀワࡲࡗ࡚࠸ࡿ㸦୰ᐇ࡛࠶ࡿ㸧ࡢ࡟ᑐࡋࠊࢡ࢚ࣥ㓟ࢆῧຍ(CCA=0.2
M)ࡋ࡚ྜᡂࡋࡓ⢏Ꮚࡢෆ㒊ࡣ⻡⺸ࡀᕢࢆᙇࡗࡓࡼ࠺࡞㧗࠸✵㝽ࢆ᭷ࡋ࡚࠸ࡿࠋ࡞࠾ࠊCA-USP ἲ࡛ྜᡂࡋࡓ
ࡇࢀࡽ⢏Ꮚࡢ XRD

ᐃ࡜ ICP ⤌ᡂศᯒࡢ⤖ᯝࡼࡾࠊLaSrCoFe ⣔࡟ࡘ࠸࡚ࡣ La0.6Sr0.4Co0.2Fe0.8O3 ࡀࠊ

LaCaMn ⣔࡟ࡘ࠸࡚ La0.8Ca0.2MnO3 ࡀࠊNiO-GaCe ⣔࡟ࡘ࠸࡚ࡣ NiO- Gd0.1Ce0.9O1.95 ࡀྜᡂࡉࢀ࡚࠸ࡿࡇ
࡜ࡀศ࠿ࡗ࡚࠸ࡿ 3,4,5)ࠋ

ᆰൢಊ(LCM)ᩓᚐឋؕெ(YSZ)
༓૰ಊ(NiO-GDC)

ǻȫƷ˺ᙌᲢᩓᚐឋૅਤ‫׹‬Უᅗ㸯 స〇ࡋࡓࣘࢽࢵࢺࢭࣝᆰൢಊ(LCM)
CCA=0 M

༓૰ಊ(NiO-GDC)

CCA=0.2 M

100 nm

CCA=0 M

100 nm

200 nm

CCA=0.2 M

200 nmᅗ㸰 ࢡ࢚ࣥ㓟ᄇ㟝⇕ศゎἲ࡛ྜᡂࡋࡓ LaCaMn ⣔㓟໬≀⢏Ꮚ࡜ NiO-GaCe ⣔㓟໬≀⢏Ꮚࡢ TEM ෗┿− 25 −

㸱㸬⤖ᯝ
⾲ 1 ࡟ LaCaMn ⣔⢏Ꮚࢆ⏝࠸࡚స〇ࡋࡓ✵Ẽᴟࡢ཯ᛂ᢬ᢠࡢ
ᐃᐃ⤖ᯝ 6)ࢆ♧ࡍࠋ஺ὶ࢖ࣥࣆ࣮ࢲࣥࢫࡢ

ᗘࢆ 700㹼800Υ࡜ኚ໬ࡋࡓࠋ⾲୰ࡢࢧࣥࣉࣝࡢྡ⛠ࡣࠊCA0M ࡣࢡ࢚ࣥ㓟ࢆῧຍࡏࡎ࡟ྜᡂࡋࡓ⢏ᏊࢆࠊCA0.2M ࡣ 0.2 M ࡢࢡ࢚ࣥ㓟ࢆῧຍࡋ࡚ྜᡂࡋࡓ⢏Ꮚࢆ⏝࠸ࡓࡇ࡜ࢆ♧ࡋࠊࡑࡢᚋࡢࢭࣝࢆస〇ࡋࡓ࡜ࡁࡢ↝ᡂ

ᗘࢆ♧ࡍࠋ

ᐃ

ᗘࡣࣘࢽࢵࢺ

ᗘࡀྠࡌ࡜ࡁࡢྛࢧࣥࣉࣝࡢ཯ᛂ᢬ᢠ್ࢆẚ㍑ࡍࡿ࡜

CA0.2M_1100Υࡢ್ࡀ᭱ࡶప࠸ࡇ࡜ࡀࢃ࠿ࡿࠋࡇࢀࡣ↝ᡂ

ᗘ 1100Υࡢ࡜ࡁ࡟ࠊᅗ 2 ࡟♧ࡍ≉␗࡞⢏Ꮚࡢෆ㒊ᵓ㐀ࡀ↝ᡂᚋࡶಖࡓࢀࡓࡓࡵ࡜⪃࠼ࡽࢀࡿࠋ⾲㸯 ஺ὶ࢖ࣥࣆ࣮ࢲࣥࢫἲ࡟ࡼࡾ

ᐃᗘᐃࡋࡓ LaCaMn ✵Ẽᴟࡢ཯ᛂ᢬ᢠ[ƺ cm2]

స〇ࡋࡓࢧࣥࣉࣝ
CA0M_1200Υ

CA0.2M_1200Υ

CA0.2M_1100Υ

CA0.2M_1000Υ

800Υ

1.55

1.44

0.34

0.64

750Υ

5.23

6.66

1.46

2.36

700Υ

15.8

24.1

7.48

8.21

650Υ

53.1

83.5

28.1

33.1

㸲㸬⤖ㄽ
⏦ㄳ⪅ࡽࡀ㛤Ⓨࡋࡓ᪂ወ࡞ᄇ㟝⇕ศゎἲ࡛ྜᡂࡋࡓᅛయ㓟໬≀⇞ᩱ㟁ụ㟁ᴟᮦᩱࢆ⏝࠸࡚ࣘࢽࢵࢺࢭࣝ
ࢆ✀ࠎࡢ↝ᡂᗘ࡛స〇ࡋࡓ࡜ࡇࢁࠊ↝ᡂᗘࢆ᭱㐺໬ࡍࡿࡇ࡜࡟ࡼࡾ᪂ወྜᡂἲ࡛ྜᡂࡋࡓከᏍ㉁⢏Ꮚࡢࡶࡘ≉ᛶ㸦㧗✵㝽㸧ࢆࣘࢽࢵࢺࢭࣝࡢ཯ᛂ᢬ᢠ࡟཯࡛ᫎࡁࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋ
㸳㸬ཧ⪃ᩥ⊩1) T. Kinoshita, A. Arastoo and M. Adachi: “Synthesis of porous submicron Gd0.1Ce0.9O1.95 particles
by carbon nanoparticle-addition ultrasonic spray pyrolysis (CNA-USP) and nanoparticles
preparation by their ball milling”, Aerosol Sci. Technol. 48, 10, 1080-1088 (2014).
2) ᖹᒸ㟹ᩍ㸪ᮌୗ༟ஓ㸪㊊❧ඖ᫂㸸ࠕ࣮࢝࣎ࣥࢼࣀ⢏Ꮚῧຍ㉸㡢Ἴᄇ㟝⇕ศゎἲ࡟ࡼࡿከᏍ㉁ Gd0.1Ce0.9O1.95
ࢧࣈ࣑ࢡࣟࣥ⢏Ꮚࡢྜᡂ࡟୚࠼ࡿཎᩱ⁐ᾮࡢ pH ࡢᙳ㡪ࠖࠊ࢚࢔ࣟࢰࣝ◊✲ 29, 4, 257-262 (2014)3) T. Kinoshita and M. Adachi: “Submicron Particle Synthesis of Solid Oxide Fuel Cell Materials
by Ultrasonic Spray Pyrolysis”, J. Chem. Eng. Jpn. 48(3), 238-244 (2015).
4) T. Kinoshita, A. Arastoo and M. Adachi: “Porous particle synthesis for the SOFC anode andcathode materials by citric acid-addition ultrasonic spray pyrolysis (CA-USP)”, Aerosol Sci.
Technol. 48, 10, 1089-1098 (2014).
5) T. Kinoshita, H. Maruko, A. Kondo, M. Naito and M. Adachi: “Synthesis of porous
La0.6Sr0.4Co0.2Fe0.8O3 particles by citric acid-addition ultrasonic spray pyrolysis (CA-USP)”International Conference on the Characterization and Control of Interfaces for High Quality
Advanced Material (ICCCI 2015), July 7-10, Kurashiki (2015).
6) H. Maruko, A. Arastoo, T. Kinoshita, A. Kondo, M. Naito and M. Adachi: “Electrochemical
properties of the SOFC cathode prepared by citric acid-addition ultrasonic spray pyrolysis(CA-USP)”, 2015 Asian Aerosol Conference (AAC 2015), June 24-26, Kanazawa (2015)㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 26 −

ࢧ࢖ࢬ࣭ᙧែไᚚ༢ศᩓ㓟໬㕲ࢼࣀ⢏Ꮚࡢ⾲㠃ྍ㏫᥋ྜ࡟ࡼࡿ᪂つ☢ᛶ⢓ᛶὶయࡢ㛤Ⓨᮾ໭኱Ꮫ ከඖ≀㉁⛉Ꮫ◊✲ᡤ ⽣Ụ ⃈ᚿ኱㜰኱Ꮫ ᥋ྜ⛉Ꮫ◊✲ᡤ 㜿㒊 ᾈஓ㸪ෆ⸨ ∾⏨㸯㸬◊✲ࡢ┠ⓗ☢Ẽ⢓ᛶ (MR) ὶయ࡜ࡣ☢ᛶᚤ⢏Ꮚࢆࢩࣜࢥࣥ࢜࢖ࣝ➼࡟ศᩓࡉࡏࡓࢥࣟ࢖ࢻศᩓᾮ࡛࠶ࡿ㸬ࡇࡢὶయࡣ☢ሙ༳ຍ࡟ࡼࡗ࡚☢ᛶᚤ⢏Ꮚࡀ㙐≧ᵓ㐀ࢆᙧᡂࡍࡿࡇ࡜࡟㉳ᅉࡋ࡚⢓ᗘࡀቑຍࡋ㸪ࡇࡢ≉ᛶࡣࢲࣥࣃ࣮㸪ࣈ࣮ࣞ࢟➼࡟⏝࠸ࡽࢀ࡚࠸ࡿ㸬MR ὶయ࡛ࡣศᩓ⢏Ꮚࡢỿ㝆ࡀၥ㢟࡜࡞ࡿ㸬᪤ ࡢ◊✲࡛ࡣ☢ᛶᚤ⢏Ꮚࡢ⾲㠃ᨵ㉁➼࡟ࡼࡾศᩓᏳᐃᛶࢆྥୖࡉࡏ㸪≉ᛶࢆホ౯ࡋࡓ౛ࡀぢࡽࢀࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪⢏Ꮚᙧែࢆཝᐦ࡟ไᚚࡋ㸪⢏Ꮚᙧែࡀ MR ≉ᛶ࡟୚࠼ࡿᙳ㡪ࢆㄪ࡭ࡓ◊✲ࡣぢࡽࢀࡎ㸪☢ሙୗ࡟࠾࠸࡚ᙧᡂࡉࢀࡿ㙐≧ᵓ㐀࡜⢏Ꮚࡢࢧ࢖ࢬ࣭ᙧែ࡜ࡢ┦㛵ࡣᮍ▱࡛࠶ࡿ㸬ࡉࡽ࡟㸪ᙧ≧␗᪉ᛶࢆ᭷ࡍࡿ☢ᛶᚤ⢏Ꮚ࠿ࡽ࡞ࡿ MR ὶయࡣ㸪⢓ᛶ࡬ࡢ␗᪉ᛶࡢᑟධ࡞࡝㸪᪂ࡓ࡞≉ᛶࡢⓎ⌧ࡀᮇᚅ࡛ࡁࡿ㸬ᮏඹྠ◊✲࡛ࡣࡇࢀࡲ࡛࡟ཝᐦ࡟ᙧែไᚚࡋࡓ༢ศᩓ Fe3O4 ᚤ⢏Ꮚࡢ␗✀⏺㠃᥋ྜ࡟╔┠ࡋࡓ⾲㠃ᨵ㉁࡟ࡼࡾ㸪ࢩࣜࢥࣥ࢜࢖ࣝ࡬ࡢศᩓᛶࢆྥୖࡉࡏࡿࡇ࡜࡛ MR
ὶయࢆㄪ〇ࡋ㸪⢏Ꮚᙧែࡀࡑࡢ≉ᛶ࡟୚࠼ࡿᙳ㡪ࢆホ౯ࡋ࡚ࡁࡓ㸬ࡑࡢ⤖ᯝ㸪ࢫࣆࣥࢻࣝᆺ⢏Ꮚࡣ㸪❧᪉యᆺ⢏Ꮚ࡟ẚ࡭࡚ MR ຠᯝࡀ኱ࡁࡃ࡞ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ࡇࢀࡣࢫࣆࣥࢻࣝᆺ⢏Ꮚࡀ㛗㍈᪉ྥ࡬࡜ᐜ᫆࡟☢໬ࡍࡿࡇ࡜࡟ࡼࡾ㸪❧᪉యᆺ⢏Ꮚ࡜ẚ㍑ࡋ㙐≧ᵓ㐀ࡢᙉᗘࡀ㧗࠸ࡓࡵ࡛࠶ࡿ
⪃࠼ࡽࢀࡿ㸬୍᪉࡛◊✲⪅ࡽࡣࡇࢀࡲ࡛࡟㸪⾲㠃࡟࢝ࣝ࣎࢟ࢩࣝᇶࢆ᭷ࡍࡿ Au ࢼࣀ⢏Ꮚ࡟㸪Fig.
1 ࡟♧ࡍࡼ࠺࡞㸪ᮎ➃࡟࢔࣑ࣀᇶࢆ᭷ࡍࡿ᭷ᶵࢹࣥࢻࣟࣥศᏊࢆ⢭ᐦ࡟⾲㠃ಟ㣭ࡍࡿࡇ࡜࡟ࡼࡾ㸪ࢼࣀ⢏Ꮚࡀ⮬ᕫ⤌⧊ⓗ࡟୕ḟඖᵓ㐀ࢆᙧᡂࡍࡿࡇ࡜ࢆ♧ࡋ࡚ࡁࡓ㸬1) ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪☢ᛶࢼࣀ⢏Ꮚ࠿ࡽ࡞ࡿ⮬ᕫ⤌⧊ᵓ㐀ࡢᙧᡂ࣭ືⓗไᚚ࡟ࡼࡿ᪂ࡓ࡞ MR ὶయࡢ㛤Ⓨࢆ┠ⓗ࡜ࡋ㸪༢ศᩓ⌫≧ Fe3O4 ࢼࣀ⢏Ꮚ⾲㠃࡬㸪⮬ᕫ⤌⧊ᛶࢆ᭷ࡍࡿ᭷ᶵࢹࣥࢻࣟࣥศᏊࢆ⢭ᐦ࡟ಟ㣭ࡍࡿᡭἲࡢ㛤Ⓨࢆ⾜ࡗࡓ㸬
㸰㸬ᐇ㦂ཬࡧ⤖ᯝ༢ศᩓ⌫≧ Fe3O4 䝘䝜⢏Ꮚ⾲㠃䛾䝕䞁䝗䝻䞁ಟ㣭䛿௨ୗ䛾ᡭ㡰䛷⾜䛳䛯䠊䜎䛪㘒య⇕ศゎἲ䛻䜘䜚༢ศᩓ⌫≧ Fe3O4 䝘䝜⢏Ꮚ䜢ྜᡂ䛧䠈䛴䛔䛷䠈䝔䝖䝷䜶䝖䜻䝅䝅䝷䞁䜢⏝䛔䛯⾲㠃䝅䝸䜹䝁䞊䝖䛻䜘䜚 Fe3O4@SiO2 䝘䝜⢏Ꮚ (Fig.2 (a)) 䜢ྜᡂ䛧䛯䠊ᚓ䜙䜜䛯 Fe3O4@SiO2 䝘䝜⢏Ꮚ䛿⢏ᚄ 33.8 nm(䝁䜰⢏ᚄ 8.2 nm䠈䝅䝸䜹ᒙཌ 12.8 nm) 䛷䛒䛳䛯䠊⥆䛔
䛶䠈Fig. 3 䛻♧䛩ู㏵ㄪ〇䛧䛯䜹䝹䝪䜻䝅䝹ᇶ䜢᭷䛩䜛䝅䝷䞁䜹䝑䝥䝸䞁䜾๣䜢⏝䛔䛶 Fe3O4@SiO2 䝘䝜⢏Ꮚ⾲㠃䛻䜹䝹䝪䜻䝅䝹ᇶ䜢ᑟධ䛧䛯䠊䛣䛾㝿䠈䜹䝹䝪䜻䝅䝹ᇶ䛿䛒䜙䛛䛨䜑 t-BuMe2Si ᇶ䛷ಖㆤ䛧䠈䝅䝷䞁䜹䝑䝥䝸䞁䜾཯ᛂᚋ䛻⬺ಖㆤฎ⌮䜢᪋䛧䛯䠊䜎䛯䠈䜹䝹䝪䜻䝅䝹ᇶ䛾
Fe3O4@SiO2 䝘䝜⢏Ꮚ⾲㠃䜈䛾ᑟධ㔞䛿䠈C8H17Si(OEt)3

Fig. 1 A organic dendron used in this study.

䜢ඹᏑ䛥䛫䜛䛣䛸䛷ẁ㝵ⓗ䛻ไᚚ䛧䛯䠊⾲㠃䜹䝹䝪䜻䝅䝹ᇶಟ㣭 Fe3O4@SiO2 䝘䝜⢏Ꮚ䜈䛾᭷ᶵ䝕䞁䝗䝻䞁ಟ㣭䛿䠈䜰䝭䝗໬䛻䜘䜚⾜䛳䛯䠊䛣䛾㝿䠈䜰䝭䝜ᇶ䜢᭷䛩䜛䝕䞁䝗䝻䞁䛿⌫≧䛾⮬ᕫ㞟ྜᵓ㐀䜢ᙧᡂ䛩䜛䛣䛸䛛䜙䠈䝘䝜⢏Ꮚ䜢ෆໟ䛩䜛䛾䛻㐺䛧䛶䛔䜛䛸⪃ 䛘 䛯 䠊 䜎 䛪 䠈 Fe3O4@SiO2 10 mg 䜢
DMF/CH2Cl2 ୰䛻ศᩓ䛥䛫䠈䝕䞁䝗䝻䞁 50
mg 䜢ΰྜ䛧䛯䠊ḟ䛻䠈1-䜶䝏䝹-3-(3-䝆䝯Fig. 2 TEM images of (a) Fe3O4@SiO2 NPs; (b)Dendron-modified Fe3O4@SiO2 NPs.

− 27 −

䝏䝹䜰䝭䝜䝥䝻䝢䝹) 䜹䝹䝪䝆䜲䝭䝗ሷ㓟ሷ 50 mg 䜢ຍ䛘䠈ᐊ

䛷 24 ᫬㛫᧠ᢾ䛧䛯䠊ᚓ䜙䜜䛯⏕ᡂ≀䛿㐲ᚰศ㞳䛻䜘䜚Ὑί䛧䠈ῶᅽ஝⇱䛩䜛䛣䛸䛷䝕䞁䝗䝻 Fig.3 A structure of silane coupling agent used䞁ಟ㣭 Fe3O4@SiO2 䝘䝜⢏Ꮚ G2/FS 䜢ᚓ䛯䠊⌧in this study.

ᅾ䠈ᚓ䜙䜜䛯䝘䝜⢏Ꮚ䛾⤌ᡂ䜔ຍ⇕᫬䛻⏕ᡂ䛩䜛⮬ᕫ⤌⧊ᵓ㐀䛻䛴䛔䛶ゎᯒ୰䛷䛒䜛䠊㸱㸬ࡲ࡜ࡵ ᮏ◊✲࡛ࡣ㸪ᾮᬗᛶࢆ᭷ࡍࡿ᭷ᶵࢹࣥࢻࣟࣥࢆ㓟໬㕲ࢼࣀ⢏Ꮚ⾲㠃࡬ᑟධࡍࡿࡇ࡜࡟ࡼࡾ㸪እ㒊่⃭ᛂ⟅ᛶࢆ᭷ࡍࡿ᪂ࡓ࡞ MR ὶయࢆ㛤Ⓨࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ㸪☢ᛶࢼࣀ⢏Ꮚ࡬⮬ᕫ⤌⧊ᛶࢆ᭷ࡍࡿ᭷ᶵࢹࣥࢻࣟࣥࢆ໬Ꮫಟ㣭ࡋࡓ㸬ࡑࡢ⤖ᯝ㸪㓟໬㕲ࢼࣀ⢏Ꮚ⾲㠃࡟ᐦ࡟ࢹࣥࢻࣟࣥศᏊࢆ
ᑟධࡍࡿᡭἲࢆ☜❧ࡋࡓ㸬௒ᚋ㸪ࡉࡽ࡞ࡿゎᯒࢆ㐍ࡵࡿ࡜ඹ࡟㸪ࢩࣜࢥࣥ࢜࢖ࣝ୰࡛⢏Ꮚࡀ୍ḟ⢏Ꮚศᩓࡋࡓ MR ὶయࢆㄪ〇ࡋ㸪ᚓࡽࢀࡓ MR ὶయࡢ≉ᛶࢆホ౯ࡍࡿࡇ࡜࡛ MR ≉ᛶ࡬୚࠼ࡿ
⮬ᕫ⤌⧊ᛶ࣭⮬ᕫ㓄ิᛶࡢຠᯝࢆ᫂ࡽ࠿࡟ࡋ࡚࠸ࡃணᐃ࡛࠶ࡿ㸬࠙ཧ⪃ᩥ⊩ࠚ
1) K. Kanie, M. Matsubara, X. Zeng, F. Liu, G. Ungar, H. Nakamura, A. Muramatsu, J. Am. Chem. Soc.,
134, 808 (2012).
㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 28 −

⾲㠃ಟ㣭ࢼࣀ⢏Ꮚࡢศᩓ࣭྾╔≉ᛶ࡜ࢥࣟ࢖ࢻࣉ࣮ࣟࣈ AFM ἲ࡟ࡼࡿゎᯒᮾி㎰ᕤ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲㝔⚄㇂⚽༤
1. ┠ⓗࢼࣀ⢏Ꮚࡣ௜╔ࠊจ㞟ᛶࡀⴭࡋࡃ㧗࠸ࡓࡵࠊ⢏Ꮚ⾲㠃࡟ศᩓ๣ࡸ⏺㠃άᛶ๣ࢆ྾╔ࡉࡏࠊศᩓᛶࢆྥୖࡍࡿᚲせࡀ࠶ࡿࠋぶỈᇶ࡟ࣜࣥ㓟ᇶࠊ᭷ᶵ㙐࡟࢔ࣝ࢟ࣝ㙐࡜ PEG 㙐ࢆᣢࡘ Fig. 1 ࡟♧ࡍᵓ㐀ࡢ⏺㠃άᛶ๣ A ࢆ྾╔ࡉࡏࡿࡇ࡜࡛ࠊᴟᛶࡢ␗࡞ࡿᵝࠎ࡞᭷ᶵ⁐፹࡟ࢼࣀ⢏ᏊࢆศᩓᏳᐃ໬࡛ࡁࡿࡇ࡜ࡀሗ࿌ࡉࢀࡓ 1)ࠋࡲࡓࠊ
⏺㠃άᛶ๣ A ࢆ⾲㠃ಟ㣭ࡋࡓศᩓᛶࢼࣀ⢏Ꮚࢆ௵ពࡢẕᮦ࡜࡞ࡿ⢏Ꮚ➼࡟྾╔ࡉࡏࠊẕᮦࢆศᩓࡉࡏࡿ᪉ἲ
ࢆᥦ᱌ࡋࠊ⏝࠸ࡿ᭷ᶵ⁐፹✀࡟ࡼࡗ࡚ẕᮦ⢏Ꮚ࡬ࡢ⾲㠃ಟ㣭ࢼࣀ⢏Ꮚࡢ྾╔㔞ࡀ␗࡞ࡿࡇ࡜ࢆ☜ㄆࡋࡓ 1) ࠋᮏ◊✲࡛ࡣࠊ⏺㠃άᛶ๣ A ࢆ⾲㠃ಟ㣭ࡋࡓ TiO2 ࢼࣀ⢏Ꮚࡢẕᮦ SiO2 ⢏Ꮚ⾲㠃࡬ࡢ྾╔㔞ࡀࠊ⁐፹✀࡟ࡼࡾኚ໬ࡍࡿ⌧㇟ࢆゎᯒࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋࢥࣟ࢖ࢻࣉ࣮ࣟࣈ AFM ἲ࡟ࡼࡾࠊ⏺㠃άᛶ๣ A ࢆ྾╔ࡉࡏࡓ⌫ᙧ TiO2 ⢏Ꮚ࡜ẕᮦ࡛࠶ࡿࢩࣜ࢝ᮦ㉁ࡢ⾲㠃㛫ຊࢆ␗࡞ࡿ᭷ᶵ⁐፹୰࡛ᐃࡋࠊ⾲㠃ಟ㣭ࢼࣀ⢏Ꮚࡢẕᮦ⢏Ꮚ࡬ࡢ྾╔≧ែ࡜ẚ㍑ࡍࡿࡇ࡜࡛ࠊ⾲㠃ಟ㣭ࢼࣀ⢏Ꮚࡢ྾╔⌧㇟ࡢ⁐፹✀౫Ꮡᛶࡢ⪃ᐹࢆヨࡳࡓࠋᅗ㸯 ᵝࠎ࡞᭷ᶵ⁐፹࡟ศᩓྍ⬟࡞⏺㠃άᛶ๣ࡢᇶᮏศᏊᵓ㐀
2. ᐇ㦂᪉ἲ
ᕷ㈍ࡢ TiO2 ࢼࣀ⢏Ꮚ(▼ཎ⏘ᴗᰴᘧ఍♫〇ࠊSTS-100ࠊ୍ḟ⢏Ꮚᚄ㸸5 nm)࡟⏺㠃άᛶ๣ A ࢆ྾╔ࡉࡏࠊỈὙί࣭┿✵஝⇱ࢆ⾜࠸ࠊ⢏Ꮚࢆᅇ཰ࡋࡓࠋࡇࡢ⾲㠃ಟ㣭ࢼࣀ⢏Ꮚࢆࢺ࢚ࣝࣥཬࡧ࢚ࢱࣀ࣮ࣝ୰࡟෌ศᩓࡉࡏࠊ
ືⓗගᩓ஘ἲ࡟ࡼࡾ

ᐃࡋࡓ⢏Ꮚᚄศᕸ࡟ࡼࡾศᩓᛶࢆࠊ᭷ᶵඖ⣲ศᯒ࡟ࡼࡾ྾╔㔞ࢆホ౯ࡋࡓࠋࡲࡓࠊẕᮦ SiO2 ⢏Ꮚ(᪥ᮏゐ፹ᰴᘧ఍♫〇ࠊKE-W50)࡟྾╔ࡉࡏࠊ྾╔≧ែࢆ FE-SEM ࡟ࡼࡾほᐹࡋࡓࠋ⾲㠃ಟ㣭ࢼࣀ⢏Ꮚࢆᶍᨃࡋࡓࢥࣟ࢖ࢻࣉ࣮ࣟࣈࢆస〇ࡍࡿࡓࡵࠊࢼࣀ⢏Ꮚࡀ㞟ྜᅛ໬ࡋࡓᵓ㐀࡛࠶ࡿ࣐࢖ࢡࣟࢧ࢖ࢬࡢ
⌫ᙧ TiO2 ⢏Ꮚ(ࢪ࣮࢚ࣝࢧ࢖࢚ࣥࢫᰴᘧ఍♫〇ࠊTitansphere TiO)࡟⏺㠃άᛶ๣ A ࢆ྾╔ࡉࡏࠊ྾╔≧ែࢆȝ㟁఩ࠊFT-IR ࡟ࡼࡾホ౯ࡋࡓࠋࡇࡢ⢏Ꮚࢆ 1 ಶ㑅ᢥࡋࠊᕷ㈍ࡢ AFM ⏝࢝ࣥࢳࣞࣂ࣮(࢜ࣜࣥࣃࢫࠊOMCLTR800PSA-1)ࡢඛ➃࡟᥋╔ࡋ࡚ࢥࣟ࢖ࢻࣉ࣮ࣟࣈࢆస〇ࡋࡓࠋẕᮦ SiO2 ⢏Ꮚ⾲㠃ࢆᶍᨃࡋࡓ▼ⱥᖹᯈ(ᮾࢯ࣮ࢡ࢛࣮ࢶ〇ࠊ㙾㠃◊☻῭)ࢆࢧࣈࢫࢺ࣮ࣞࢺ࡜ࡋ࡚ࠊస〇ࡋࡓࢥࣟ࢖ࢻࣉ࣮ࣟࣈࢆ⏝࠸ࠊࢺ࢚ࣝࣥཬࡧ࢚ࢱࣀ
࣮ࣝ୰࡛ࡢ⾲㠃㛫ຊࡢᐃࢆ⾜ࡗࡓࠋ

3. ⤖ᯝ࠾ࡼࡧ⪃ᐹ
3.1 ⾲㠃ಟ㣭TiO2䝘䝜⢏Ꮚ䛾ศᩓ䞉྾╔≉ᛶ㻌 㻌⏺㠃άᛶ๣A䛷⾲㠃ಟ㣭䛧䛯䝘䝜⢏Ꮚ䛾䝖䝹䜶䞁ཬ䜃䜶䝍䝜䞊䝹୰䛷䛾ศᩓᛶ䜢ືⓗගᩓ஘ἲ䛻䜘䜚ィ䛧䛯⤖ᯝ䚸50%ᚄ䛿䜶䝍䝜䞊䝹୰䛷17nm䚸䝖䝹䜶䞁୰䛷15nm䛷䛒䜚䚸䜋䜌୍ḟ⢏Ꮚ䜎䛷ศᩓ䛧䛶䛔䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹᭷ᶵඖ⣲ศᯒ䛾⤖ᯝ䚸⏺㠃άᛶ๣A䛾྾╔㔞䛿0.43g/g-TiO2䛸

ᐃ䛥䜜䛯䚹㻌

3.2 䝁䝻䜲䝗䝥䝻䞊䝤䛾స〇㻌 㻌䝁䝻䜲䝗䝥䝻䞊䝤䛻⏝䛔䛯⌫ᙧ TiO2 ⢏Ꮚ䛾⏺㠃άᛶ๣ A ῧຍ㔞䛻䜘䜛 ȗ 㟁఩䛾ኚ໬䛾 ᐃ⤖ᯝ䜢 Fig. 2 䛻♧䛩䚹⁐ᾮ䛾 pH 䛿⣙ 3.0 䛻ㄪ〇䛧䛯䚹ῧຍ㔞䛾ቑຍ䛸䛸䜒䛻䚸↓ῧຍ䛷䛿ṇ䛾್䜢♧䛧䛶䛔䛯 ȗ 㟁఩䛿ῶᑡ䛧䚸㈇䛾್䛸䛺䛳䛯䚹㣬࿴྾╔䛻㐩䛧䛯䛸⪃䛘䜙䜜䜛 0 mV ௜㏆䛾 ȗ 㟁఩䜢♧䛧䛯ῧຍ㔞 20.4 mg/m2 䛾᮲௳䛷྾╔䛥䛫䛯⢏Ꮚ䜢⏝䛔䛶䝁䝻䜲䝗䝥䝻䞊䝤䜢స〇䛧䛯䚹⏺㠃άᛶ๣྾╔๓ᚋࡢ⢏Ꮚ⾲㠃ࡢ FT-IR ࡟ࡼࡿศᯒ⤖ᯝࢆ Fig. 3 ࡟♧ࡍࠋ྾╔ฎ⌮ᚋࡢ⢏Ꮚ࡟ࠊ⏺㠃άᛶ๣ A ⏤᮶ࡢ 2933ࠊ2852 cm-1 ௜㏆࡟ CH2 ఙ⦰᣺ືࡢ྾཰ࡀほᐹࡉࢀࠊ⏺㠃άᛶ๣ A ࡢ྾╔ࡀ☜ㄆࡉࢀࡓࠋ

− 29 −     Fig. 2 ⏺㠃άᛶ๣ῧຍ㔞࡟ࡼࡿȝ㟁఩ࡢኚ໬
3.3 TiO2⢏Ꮚ䛸▼ⱥᖹᯈ㛫䛻ാ䛟⾲㠃㛫ຊ

Fig. 3 ⏺㠃άᛶ๣྾╔๓ᚋ࡟ࡼࡿ FT-IR ࡢኚ໬ᐃ㻌 㻌⏺㠃άᛶ๣ A 䜢྾╔䛥䛫䛯 TiO2 ⢏Ꮚ䛸▼ⱥᖹᯈ㛫䛾䝖䝹䜶䞁ཬ䜃䜶䝍䝜䞊䝹୰䛷䛾 Force curve 䛾᥋㏆㐣⛬䚸ศ㞳㐣⛬䜢 Fig. 5 䛻♧䛩䚹⏺㠃άᛶ๣ A 䛾྾╔䛻䜘䜛䝣䜷䞊䝇䛾ኚ໬䜢☜ㄆ䛩䜛䛯䜑䛻ᮍಟ㣭⢏Ꮚ䛻䜘䜛ᐃ䜒⾜䛳䛯䚹᥋㏆㐣⛬䜢♧䛧䛯 Fig. 5(a)䛻䛚䛔䛶䛿䚸䜶䝍䝜䞊䝹୰䛷䛿䝖䝹䜶䞁୰䛷ほᐹ䛥䜜䛺䛔 30 nm ௜㏆䛛䜙᩺ຊ䛜స⏝䛧䚸䜎䛯⏺㠃άᛶ๣ A 䛾྾╔䛻䜘䜚᩺ຊ䛿పୗ䛧䛯䚹䝖䝹䜶䞁୰䛷䛿䚸ᮍಟ㣭⢏Ꮚ䛷ほᐹ䛥䜜䜛 100 nm ௜㏆䛛䜙
䛾㛗㊥㞳ᘬຊ䛜⏺㠃άᛶ๣ A 䛾྾╔䛻䜘䜚ῶᑡ䛧䛯䛜䚸20 nm ௜㏆䛾ᘬຊ䛿ṧ␃䛧䛯䚹ศ㞳㐣⛬䜢♧䛧䛯 Fig. 5(b)䛾䜶䝍䝜䞊䝹୰䛾 Force curve 䛿ᮍಟ㣭䛾ሙྜ䛸ྠᵝ䛾ഴྥ䜢♧䛧䛯䛜䚸䝖䝹䜶䞁୰䛷䛿㠀⥺ᙧⓗ䛷ᩘ 10 nm 䛻ཬ䜆ከẁ㝵䛛䛴㛗㊥㞳䛾ᘬຊ䛜྾╔䛻䜘䜚ᐃ䛥䜜䛯䚹䛣䛾⤖ᯝ䜘䜚䚸䜶䝍䝜䞊䝹୰䛷䛿䚸⾲㠃ಟ㣭䛻䜘䜚䝘䝜⢏Ꮚ䛾ẕᮦ⢏Ꮚ䜈䛾᥋㏆䜢㜼ᐖ䛩䜛᩺ຊ䛜ῶᑡ䛩䜛䛜ᾘኻ䛧䛺䛔䛣䛸䚸䜎䛯䝖䝹䜶䞁୰䛷䛿᩺ຊ䛜䜋䛸䜣䛹ほᐹ䛥䜜䛪ᘬຊ䛾䜏䛜ほᐹ䛥䜜䛯䛣䛸䛛䜙䚸⾲㠃ಟ㣭䝘䝜⢏Ꮚ䛾 SiO2 ⾲㠃䜈䛾྾╔䛾㜼ᐖせᅉ䛜ᑡ䛺䛔䛣䛸䛜ண

䛥䜜䛯㻌

 
Fig. 4 ᥋㏆(a), ศ㞳(b)㐣⛬࡛ࡢ Force curve ࡢศᩓ๣྾╔ࡢ᭷↓ࠊ⁐፹✀ࡢᙳ㡪
4㸬࠾ࢃࡾ࡟
⏺㠃άᛶ๣ A ಟ㣭 TiO2 ࢼࣀ⢏Ꮚࡢ྾╔ᣲືࡢ⁐፹✀౫Ꮡᛶࡀࠊࢥࣟ࢖ࢻࣉ࣮ࣟࣈ AFM ἲ࡟ࡼࡿ Force
curve ࡢ྾╔ࡢ᭷↓ࠊ⁐፹✀࡟ࡼࡿኚ໬࠿ࡽ⪃ᐹ࡛ࡁࡓࠋ
㸦ᩥ⊩㸧1) Iijima, M. et al, J. Am. Chem. Soc., 2009, 131, 16342–16343.
2) Iijima, M. et al. Colloids and Surfaces A: Physicochem. Eng. Aspects, 2014, 452, 51–58(ඹྠ◊✲ศ㔝: ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫศ㔝)− 30 −

Ỉ୰㧗ศᩓ Gd0.2Ce0.8O1.9 ࢼࣀ⤖ᬗࡢྜᡂ࡜ࡑࡢᵓ㐀ホ౯⩌㤿኱Ꮫ኱Ꮫ㝔⌮ᕤᏛᗓబ⸨ ࿴ዲ, ᇼཱྀ ࿴ဢ, ᪂஭ ឡᮍ⥴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࠸ࡿࠋ⌧ᅾࠊᡃࡀᅜࢆࡣࡌࡵ࡜ࡋ࡚ࠊḢᕞࠊ⡿ᅜࡀᕷሙᢞධ୪ࡧ࡟ᬑཬࢆ┠ᣦࡋࡓᐇドẁ㝵࡟㍈㊊ࢆࢩࣇࢺࡋ࡚࠸ࡿࠋ
୍᪉ࠊฟຊᐦᗘࡢྥୖࡣ⌧ᅾ࡟࠾࠸࡚ࡶ㔜せ࡞ࢱࢫࢡ࡛࠶ࡿࠋ࡞ࡐ࡞ࡽࡤࠊฟຊᐦᗘࡢྥୖࡣࠊᚲせ࡞㟁ຊࢆⓎ⏕ࡍࡿࡓࡵ࡟ᚲせ࡞ࢭࣝࡢࢧ࢖ࢬࡸ㒊ရⅬᩘࡢపῶࢆྍ⬟࡟ࡋࠊṌ␃ࡾྥୖࡸᮦᩱࢥࢫࢺࡢ๐ῶ࡟ᐤ୚ࡍࡿࡔࡅ࡛࡞ࡃࠊࢩࢫ
ࢸ࣒ࡢࢥࣥࣃࢡࢺ໬࡟ࡼࡾࠊSOFC ࡢࣔࣂ࢖ࣝᶵჾ࡬ࡢᛂ⏝ࢆྍ⬟࡟ࡍࡿ࠿ࡽ࡛࠶ࡿࠋ᭱᪂㗦ࡢ SOFC ࡟࠾࠸࡚ࡣࠊ㟁ᴟ࡟࠾ࡅࡿ㟁Ẽ໬Ꮫ཯ᛂ㏿ᗘࡀ㧗ฟຊ໬ࡢ࣎ࢺࣝࢿࢵࢡ࡜࡞ࡗ࡚࠸ࡿࠋࡑࡢࡓࡵࠊ཯ᛂ㏿ᗘࢆྥୖࡉࡏࡿࡓࡵࡢ᳨ウࡀ
ᗈࡃ⾜ࢃࢀ࡚࠸ࡿࠋ᪂つᮦᩱࡢ㛤Ⓨࡀ㟁ᴟࡢ㧗ᛶ⬟໬࡟ྥࡅࡓ୍ࡘࡢ኱ࡁ࡞₻ὶ࡛࠶ࡿ୍᪉[1]ࠊᚤ⣽ᵓ㐀ไᚚࠊ࡜ࡾࢃ
ࡅ͆ࢼࣀᵓ㐀໬͇ࡣࡶ࠺୍ࡘࡢ᭷ຠ࡞࢔ࣉ࣮ࣟࢳ࡛࠶ࡿࠋ[2]
࢞ࢻࣜࢽ࣒࢘ῧຍ㓟໬ࢭ࣒ࣜ࢘㸦GDC㸧ࡣ 500-600 ºC ࡢẚ㍑ⓗప 㡿ᇦ࡟࠾࠸࡚ࡶ㧗࠸㓟⣲࢖࢜ࣥఏᑟ⋡ࢆ᭷ࡍࡿࡓࡵࠊప సືᆺᅛయ㓟໬≀⇞ᩱ㟁ụ㸦LT-SOFC㸧ࡢ㟁ゎ㉁ᮦᩱ࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࠋࡲࡓࠊGDC ࡜ Ni ࡸ
La0.6Sr0.4Co0.2Fe0.8O3 ࡜ࡢ」ྜయࡣ LT-SOFC ࡢ㟁ᴟᮦᩱ࡜ࡋ࡚᭷ᮃ࡛࠶ࡿࠋᡃࠎࡣ᭱㏆ࠊ࢖ࢵࢺࣜ࢔Ᏻᐃ໬ࢪࣝࢥࢽ
࢔ࢼࣀ⤖ᬗࢆỈ୰࡟᏶඲ศᩓࡉࡏࠊࡇࢀࢆ㊊ሙ࡜ࡋ࡚ᆒ୍࡞ࢼࣀ⤖ᬗ」ྜయࢆྜᡂࡍࡿᡭἲࢆᥦ᱌ࡋࠊࡇࢀ࡟ࡼࡾᚓࡽ
ࢀࡓ」ྜయࢆ⏝࠸࡚㟁ᴟࢆస〇ࡍࡿࡇ࡜࡟ࡼࡾࠊ650-800 ºC ࡢ㡿ᇦ࡟࠾࠸࡚ SOFC ࡢ㧗ᛶ⬟໬ࢆᐇドࡋࡓࠋࡇࡢᢏ⾡ࢆ GDC ࢼࣀ⤖ᬗ」ྜయࡢྜᡂ࡟ᒎ㛤࡛ࡁࢀࡤࠊLT-SOFC ࡢᛶ⬟ࢆ㣕㌍ⓗ࡟ྥୖࡉࡏࡿࡇ࡜ࡀྍ⬟࡟࡞ࡿ࡜ᮇᚅࡉࢀ
ࡿࠋࡇࢀࢆᐇドࡍࡿࡓࡵࡢ➨୍ࢫࢸࢵࣉ࡜ࡋ࡚ࠊᆒ୍࡟ Gd3+ࡀࢻ࣮ࣉࡉࢀࡓ GDC ࢼࣀ⤖ᬗࢆྜᡂࡋࠊᑦୟࡘจ㞟యࢆᙧᡂࡍࡿࡇ࡜࡞ࡃỈ⁐ᾮ୰࡟᏶඲ศᩓࡉࡏࡿࣉࣟࢭࢫࡢᵓ⠏ࡀ୙ྍḞ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊ᭷ᶵศᏊඹᏑୗ࡛ࡢ࢔ࢽ࢜
ࣥ㘒యࡢỈ⇕ฎ⌮࡟ࡼࡾỈ⁐ᾮ᏶඲ศᩓ Gd0.2Ce0.8O1.9 ࢼࣀ⤖ᬗࢆྜᡂࡍࡿ࡜࡜ࡶ࡟ࠊᚓࡽࢀࡓࢼࣀ⤖ᬗࡢᚤ⣽ᵓ㐀ࡢヲ⣽࡞ホ౯ࢆ⾜ࡗࡓࠋ[3]㸬ᐇ㦂᪉ἲ
GDC ࡢ⤌ᡂࡀ Gd0.2Ce0.8O1.9 ࡜࡞ࡿࡼ࠺࡟⛗㔞ࡋࡓ Ce4+࡜ Gd3+ࡢΰྜỈ⁐ᾮ࡟ࠊỈ㓟໬ࢸࢺ࣓ࣛࢳࣝ࢔ࣥࣔࢽ࣒࢘
㸦TMAH㸧࡜Ⅳ㓟Ỉ⣲ࢸࢺ࣓ࣛࢳࣝ࢔ࣥࣔࢽ࣒࢘㸦TMAHC㸧ࡢΰྜỈ⁐ᾮࢆຍ࠼ࠊሷᇶᛶ࢔ࢽ࢜ࣥ㘒యỈ⁐ᾮࢆస〇ࡋࠊࡇࢀࢆ 100~150ºC ࡛ 1~24 h Ỉ⇕ฎ⌮ࡋࡓࠋḟ࡟ࠊ⁐ᾮ୰ࡢᮍ཯ᛂ≀ࡸవ๫࡞࢟ࣕࢵࣆࣥࢢ๣ࢆ㝈እࢁ㐣㸦ศ⏬ศᏊ㔞 5000㸧࡛㝖ཤࡋࠊỈ୰᏶඲ศᩓ GDC ࢼࣀ⤖ᬗࢆᚓࡓࠋࡲࡓࠊ෾⤖஝⇱࡟ࡼࡾ⁐ᾮ୰࠿ࡽ⢊ᮎ≧ࢼࣀ⤖ᬗࢆᅇ཰ࡋ
ࡓࠋᚓࡽࢀࡓ GDC ࢼࣀ⤖ᬗࡣࠊ⢊ᮎ X ⥺ᅇᢡ㸦XRD㸧
ࠊ࢚ࢿࣝࢠ࣮ศᩓᆺ⺯ග X ⥺㸦EDX㸧ࠊUV-Raman ศගࠊẚ⾲㠃✚ ᐃࠊ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾㸦TEM㸧ࠊືⓗගᩓ஘ἲ (DLS)ࠊȝ㟁఩ ᐃ࡟ࡼࡾホ౯ࡋࡓࠋ㸬⤖ᯝ࡜⪃ᐹᅗ 1 ࡟ 125 |C ࡛Ỉ⇕ྜᡂࡋࡓ GDC ࢼࣀ⤖ᬗศᩓỈ⁐ᾮࡢእほࢆ♧ࡍࠋ࠸ࡎࢀࡢヨᩱࡶ㧗࠸㏱᫂ᛶࢆ᭷ࡋ࡚࠾ࡾࠊࡲࡓࠊ
㔜㔞ἲࡼࡾồࡵࡓᅛయࡢ཰⋡ࡣ࡯ࡰ 100㸣࡛࠶ࡗࡓࠋࡲࡓࠊ100ºC ࠾ࡼࡧ 150 ºC ࡛ྜᡂࡋࡓヨᩱ࡟࠾࠸࡚ࡶྠᵝࡢ⤖ᯝࡀᚓࡽࢀࡓࠋࡇࡢࡇ࡜࠿ࡽࠊ࠸ࡎࢀࡢ᮲௳࡟࠾࠸࡚ࡶࠊࢼࣀ⤖ᬗࡀจ㞟యࢆᙧᡂࡍࡿࡇ࡜࡞ࡃỈ⁐ᾮ୰࡟ศᩓࡋ࡚࠸ࡿࡇ࡜ࡀᙉ
ࡃ♧၀ࡉࢀࡓࠋ࡞࠾ࠊDLS ࡼࡾࠊỈ⁐ᾮ୰࡟ศᩓࡍࡿࢼࣀ⤖ᬗࡢศᩓ⢏Ꮚᚄࡢ᭱㢖್ࡣ᭱ࡶᑠࡉ࡞ࡶࡢ࡛⣙15 nm ࡛࠶ࡾࠊDLS ࡢࢹ࣮ࢱࡀỈ࿴ᒙࡢᙳ㡪࡟ࡼࡾ⢏Ꮚᚄࢆᩘ nm ⛬ᗘ㐣኱ホ౯ࡍࡿ[4]ࡇ࡜ࢆ⪃៖ࡍࡿ࡜ࠊࢼࣀ⤖ᬗࡢࢧ࢖ࢬࡣ<10 nm ࡛࠶ࡿࡇ࡜ࡀᙉࡃ♧၀ࡉࢀࡿࠋ
Figure1 Appearance of GDC nanocrystalsᅗ 2 ࡟⁐ᾮ୰ࡼࡾ㝈እℐ㐣࡟ࡼࡗ࡚ᅇ཰ࡋࡓࢼࣀ⤖ᬗࡢ
dispersed aqueous solutions grown at 125 ºC
XRD ࣃࢱ࣮ࣥࢆ♧ࡍࠋᚓࡽࢀࡓࢼࣀ⤖ᬗࡢࣆ࣮ࢡࡣ࠸ࡎࢀࡶ
for 1-24h
Gd0.2Ce0.8O1.9(JCPDS 01-075-0162)࡟ᖐᒓࡉࢀࡿࡇ࡜࠿ࡽࠊᮏᡭ
ἲ࡟ࡼࡗ࡚Ỉ୰࡟㧗ศᩓྍ⬟࡞GDCࢼࣀ⤖ᬗࡀᚓࡽࢀࡓࡇ࡜
ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ࡞࠾ࠊࣆ࣮ࢡࡣࣈ࣮ࣟࢻ࡛࠶ࡿࡶࡢࡢࠊS/N ẚࡣ㧗࠸ࡇ࡜࠿ࡽࠊ⤖ᬗᛶࡶⰋዲ࡛࠶ࡿࡇ࡜ࡀᙉࡃ♧၀ࡉࢀࡿࠋࣆ࣮ࢡࡢ್༙ᖜࡼࡾぢ✚ࡶࡗࡓ GDC ࢼࣀ⤖ᬗࡢ⤖ᬗᏊᚄࡣྜᡂ᮲௳࡟౫Ꮡࡏࡎ 4-5 nm ࡛࠶ࡗࡓࡇ࡜࠿ࡽࠊ

− 31 −

㓄఩Ꮚ࡛࠶ࡿ N(CH3)4+ࡢඹᏑ࡟ࡼࡾࢼࣀ⤖ᬗࡢ᰾⏕ᡂ࡜ᡂ㛗ࡢࣉࣟࢭࢫࡀศ㞳ࡉࢀࠊࡑࡢ⤖ᯝࠊ࢜ࢫࢺ࣡ࣝࢻᡂ㛗ࡀᢚไࡉࢀࠊᴟࡵ࡚ᚤ⣽࡞ GDC ࢼࣀ⤖ᬗࡀᚓࡽࢀࡓࡶࡢ࡜⪃࠼ࡽࢀࡿࠋ
ᅗ 3 ࡟ GDC ࢼࣀ⤖ᬗࡢ㏱㐣㟁Ꮚ㢧ᚤ㙾ീࢆ♧ࡍࠋᚓࡽࢀࡓ GDC ࢼࣀ⤖ᬗࡣࢧ࢖ࢬࡢศᕸࡀ⊃ࡃࠊࡲࡓࠊほᐹࡉࢀࡿ୍ḟ⢏Ꮚࡢࢧ࢖ࢬࡣ 4㹼5nm ࡛࠶ࡾࠊࡇࢀࡣẚ⾲㠃✚ ᐃ࠿ࡽồࡵࡓ⌫┦ᙜᚄ(4 nm)ࡸୖ㏙ࡢ XRD ࡼࡾぢ✚ࡶࡗࡓ⤖ᬗᏊᚄ࡜Ⰻዲ࡟୍⮴ࡍࡿࡇ࡜࠿ࡽࠊGDC ࢼࣀ⤖ᬗࡣ༢⤖ᬗ࡛࠶ࡾࠊୟࡘࠊಶࠎࡢࢼࣀ⤖ᬗࡣᙉᅛ࡞จ㞟యࢆᙧᡂࡋ࡚
࠸࡞࠸ࡇ࡜ࡀࢃ࠿ࡿࠋ

Figure 2 TEM images of GDCnanocrystals grown at 125 ºC for 6 h

Figure 3 XRD patterns of GDCnanocrystals grown at 125 ºC for 1-24h

ᅗ 4 ࡟ྛྜᡂ᮲௳࡟࠾ࡅࡿ GDC ࢼࣀ⤖ᬗ୰࡬ࡢ Gd3+
ࡢᅛ⁐㔞ࢆ♧ࡍࠋ100 ºC ࡛ 1 h ࡢỈ⇕ฎ⌮ࢆ⾜ࡗࡓヨᩱ࡛ࡣࠊGd3+ࡢࢻ࣮ࣉ㔞ࡀᗄศ㧗࠸ࡶࡢࡢࠊࡑࡢ௚ࡢ᮲௳࡛
ࡣࠊ࡯ࡰ┠ⓗ⤌ᡂࡢ GDC ࢼࣀ⤖ᬗࡀᚓࡽࢀࡓࠋࡲࡓࠊᚓ
ࡽࢀࡓࢼࣀ⤖ᬗࢆ HCl ࡛ฎ⌮ࡋ࡚ࡶ Gd3+㔞ࡣኚ໬ࡋ࡞࠿
ࡗࡓࠋࡉࡽ࡟ࠊḞ㝗ᵓ㐀࡟ᩄឤ࡞ UV-Raman ศගࢫ࣌ࢡ
ࢺࣝ࡟࠾࠸࡚ࠊGd3+ࡢ୙ᆒ୍ศᕸ࡟㉳ᅉࡍࡿ࣐ࣛࣥࢩࣇ
ࢺࡣㄆࡵࡽࢀ࡞࠿ࡗࡓࡇ࡜࠿ࡽࠊGd3+ࡣ CeO2 ᱁Ꮚ୰࡟ᆒ
୍࡟⨨᥮ࡋ࡚࠸ࡿࡇ࡜ࡀᙉࡃ♧၀ࡉࢀࡓࠋ㸬⤖ゝ
N(CH3)4+ඹᏑୗ࡛ࡢ Gd(III)࠾ࡼࡧ Ce(IV)ࡢ࢔ࢽ࢜ࣥ㘒యࡢỈ⇕ฎ⌮࡟ࡼࡾࠊ㧗࠸⤖ᬗᛶࢆ᭷ࡋࠊ࠿ࡘ Gd3+ࡀᆒ
Figure 4 Variation of Gd3+ content in the୍࡟ࢻ࣮ࣉࡉࢀࡓ GDC ࢼࣀ⤖ᬗࢆ㧗཰⋡࡛ᚓࡿࡇ࡜࡟
GDC nanocrystals hydrothermally grown atᡂຌࡋࡓࠋCeO2 ᱁Ꮚ࡟⨨᥮ྍ⬟࡞ 3 ౯ࡢࣛࣥࢱࢽࢻඖ⣲various temperature and reaction times.
ࡢከࡃࡣࠊ㧗⃰ᗘࡢⅣ㓟࢖࢜ࣥඹᏑୗ࡟࠾࠸࡚ࠊGd(III)࡜㢮ఝࡢሷᇶᛶⅣ㓟ሷ㘒యࢆᙧᡂࡍࡿࡇ࡜࠿ࡽࠊᮏᡭἲࡣࠊ௚ࡢ CeO2 ᅛ⁐యࡢྜᡂ࡟ࡶᛂ⏝ྍ⬟࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ
ཧ⪃ᩥ⊩[1] Z. P. Zhao, S. M. Haile, Nature, 431 (2004) 170[2] T. Suzuki, Z. Hasan, Y. Funahashi, T. Yamaguchi, Y. Fujishiro, M. Awano, Science, 325(2009) 852[3] K. Sato, M. Arai, J. C. Valmalette, H. Abe, Langmuir, 2014, 30, 12049[4] A. Bootz, V. Vogel, D. Schubert, J. Kreuter, Eur. J. Pharm. Biopharm., 2004, 57, 369
ㄽᩥⓎ⾲
[1] K. Sato, M. Arai, J. C. Valmalette, H. Abe, Langmuir, 2014, 30, 12049-12056(ඹྠ◊✲ศ㔝:ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝)− 32 −

ᚤ⢏Ꮚࢆ฼⏝ࡋࡓ⏺㠃᥋ྜไᚚ࡟ᇶ࡙ࡃࢫ࣐࣮ࢺ᥋ྜᢏ⾡ࡢ㛤ᣅ㸸MgFeNbO5 ࡢ཯ᛂ↝⤖࡜ᚤ⣽ᵓ㐀⟃Ἴ኱Ꮫᩘ⌮≀㉁⣔≀㉁ᕤᏛᇦ 㕥ᮌ ⩏࿴
㸯㸬ࡣࡌࡵ࡟ ᨃࣈࣝࢵ࢝࢖ࢺᆺᵓ㐀㸦M3O5㸧ࢆ᭷ࡍࡿከ⤖ᬗࢭ࣑ࣛࢵࢡࢫࡣࠊ⤖ᬗ⢏࡛ࣞ࣋ࣝࡢ኱ࡁ࡞⇕⭾ᙇ␗᪉ᛶࢆ᭷ࡍ
ࡿࡇ࡜࠿ࡽࠊࣂࣝࢡ࡛ࣞ࣋ࣝࡣ࣐࢖ࢡࣟࢡࣛࢵࢡ⏕ᡂ࡟ࡼࡿప⇕⭾ᙇᛶࢆ♧ࡍࠋࡇࡢప⇕⭾ᙇᛶࢆά࠿ࡋ࡚ࠊࡇࢀ
ࡲ࡛ࢳࢱࣥ㓟࢔࣑ࣝࢽ࣒࢘㸦Al2TiO5㸧ࢆ୰ᚰ࡟ࠊ⪏⇕⾪ᧁ㒊ᮦ࡬ࡢᛂ⏝ࡀ㐍ࡵࡽࢀ࡚ࡁࡓࠋAl2TiO5 ௨እ࡟ࡶ✀ࠎࡢᨃࣈࣝࢵ࢝࢖ࢺᆺᵓ㐀ࢆ᭷ࡍࡿ໬ྜ≀ࡀሗ࿌ࡉࢀ࡚࠸ࡿࡀࠊAl2TiO5 ࡜ẚ㍑ࡍࡿ࡜◊✲౛ࡣ࠿࡞ࡾ㝈ࡽࢀ࡚࠸ࡿࠋ
 ㏆ᖺࠊᡃࠎࡢࢢ࣮ࣝࣉ࡛ࡣ Al2TiO5 ࡟ẚ࡭࡚⇕Ᏻᐃᛶࡀ㧗࠸ MgTi2O5 ࡟╔┠ࡋࠊ୕ḟඖࢿࢵࢺ࣮࣡ࢡᵓ㐀ࢆ᭷ࡍࡿከᏍయࡢྜᡂ➼ࢆሗ࿌ࡋ࡚ࡁࡓࠋࡇࡢ MgTi2O5 ࡢ 4 ౯ࡢ Ti ࢖࢜ࣥࢆ 3 ౯࡜ 5 ౯ࡢ࢖࡛࢜ࣥ」ྜ⨨᥮ࡋࡓ
MgFeNbO5 ┦➼ࡢྜᡂ࡟ࡘ࠸࡚ࡣࠊ1971 ᖺ࡟ Bayer ࡟ࡼࡗ࡚ሗ࿌ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊࡑࡢᚋࡇࢀࡽࡢ┦࡟ࡘ࠸࡚ࡢሗ࿌౛ࡣ࡯࡜ࢇ࡝࡞ࡃࠊࡑࡢ≀ᛶ࡟ࡘ࠸࡚ࡣ࡯࡜ࢇ࡝ศ࠿ࡗ࡚࠸࡞࠸ࠋᮏ◊✲࡛ࡣࠊ཯ᛂ↝⤖ἲࢆ⏝࠸࡚ᨃࣈࣝ
ࢵ࢝࢖ࢺᆺ MgFeNbO5 ࢆྜᡂࡋࠊ཯ᛂᣲືࡸᚤ⣽ᵓ㐀࡟ࡘ࠸࡚ࡢ᳨ウࢆ⾜ࡗࡓࠋ㸰㸬ᐇ㦂᪉ἲ
 ฟⓎཎᩱ࡜ࡋ࡚ሷᇶᛶ MgCO3㸦99.9%ࠊ㧗⣧ᗘ໬Ꮫ◊✲ᡤ㸧ࠊD-Fe2O3ࠊNb2O5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 ࡜࡞ࡿࡼ࠺࡟⢊ᮎࢆΰྜࡋࡓࠋΰྜ࡟㝿ࡋ࡚ࡣࠊ࢚ࢱࣀ࣮ࣝ୰‵ᘧ㐟࣮࣑ᫍ࣎ࣝࣝΰྜࢆヨࡳࡓࡀࠊẚ㔜ᕪ࡟ࡼࡿỿ㝆ࡀ⃭ࡋࡃᆒ୍࡞⤌ᡂࢆᚓ࡟ࡃ࠿ࡗࡓࡓࡵࠊ◊✲ࡢึᮇẁ㝵࡛ࡣ࣓ࣀ࢘ங㖊࡛ࡢ༙‵ᘧΰྜ㸦1 h㸧ࢆ⾜࠺ࡇ࡜࡜ࡋࡓࠋ
ΰྜ⢊ᮎࡢ཯ᛂᣲືࡣࠊ㧗X ⥺ᅇᢡἲ㸦MultiflexࠊCu-KDࠊRIGAKU)ࢆ⏝࠸࡚኱Ẽ୰ 1300°C ࡲ࡛ホ౯ࡋࡓࠋࡲ

ࡓΰྜ⢊ᮎࢆ୍㍈ᡂᙧࡋࡓᚋࠊ200 MPa ࡛෭㛫➼᪉ᅽຍᅽᡂᙧࡍࡿࡇ࡜࡛ᡂᙧయࢆస〇ࡋࠊ኱Ẽ୰ 1250ÛC ࡛ 2 ᫬㛫཯ᛂ↝⤖ࡋ↝⤖యࢆᚓࡓࠋ↝⤖యࡢᚤ⣽ᵓ㐀ࡣ SEM㸦SU-70ࠊ᪥❧ࣁ࢖ࢸࢡ㸧ࢆ⏝࠸࡚ほᐹࡋࠊᵓᡂ┦࡟ࡘ࠸࡚ࡣࠊ࣌ࣞࢵࢺࢆ⢊○ࡋ࡚ᚓࡓ⢊ᮎ࡟ࡘ࠸࡚ X ⥺ᅇᢡ࡟ࡼࡾホ౯ࡋࡓࠋࡲࡓࠊ⤖ྜ≧ែ➼࡟ࡘ࠸࡚ࡣ࣐ࣛࣥศගࢆ⏝࠸࡚ホ౯ࢆヨࡳࡓࠋ㸱㸬⤖ᯝ࡜⪃ᐹ Fig. 1 ࡟኱Ẽ୰ࠊ㠀ᅽ⢊ୗ࡛ ᐃࡋࡓ㧗X ⥺ᅇᢡࡢ⤖ᯝࢆ♧ࡍࠋᅗ୰ࠊ୍␒ୗࡢࣃࢱ࣮ࣥࡀᐊ ୗ࡛ ᐃࡋࡓᮍຍ⇕ΰྜ⢊ᮎࡢࡶࡢ࡛࠶ࡾࠊୗ࠿ࡽ㡰࡟ 400Υ㹼1300Υ࡛ ᐃࡋࡓࡶࡢ࡛࠶ࡿࠋ ᗘୖ᪼࡟క࠸ࠊ⇕⭾ᙇ࠾ࡼࡧࢧࣥࣉࣝ㧗ࡉࡢኚ໬ࡀ⏕ࡌࡿࡓࡵࠊ඲య࡟పゅഃ࡟ࣆ࣮ࢡࡀࢩࣇࢺࡍࡿࠋ୍␒ୖࡢࣃࢱ࣮ࣥࡣ㧗ᐃᚋ࡟ᐊࡲ࡛෭༷ࡋ࡚ ᐃࡋࡓࡶࡢ࡛࠶ࡿࠋ
 MgFeNbO5 ⣔࡛ࡣࠊ୰㛫⏕ᡂ┦࡜ࡋ࡚ࠊᨃ 2 ඖ⣔ࡢ MgNb2O6 (magnocolumbite)࡜ࢫࣆࢿࣝᵓ㐀ࢆ᭷ࡍࡿ MgFe3+2O4(magnesioferrite)➼ࡢ⏕ᡂࡀ☜ㄆࡉࢀࡓࠋ1100Υ๓ᚋ࠿ࡽࠊ┠ⓗ⏕ᡂ≀࡛࠶ࡿ MgFeNbO5 ࡢࣆ࣮ࢡࡀほᐹࡉࢀጞࡵࡓࠋ
ᚋ㏙ࡍࡿࡼ࠺࡟ࠊᅽ⢊ᡂᙧࢆ⾜࠸ࠊ཯ᛂ᫬㛫ࢆ㛗ࡃࡍࡿࡇ࡜࡟ࡼࡗ࡚ࡇࢀࡽࡢ୰㛫┦ࡣᾘኻࡋࠊ᭱⤊⏕ᡂ┦࡛࠶ࡿ
ᨃ 3 ඖ⣔ࡢ MgFeNbO5 ࢆᚓࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࠋᐇ㝿࡟෭༷ᚋࡢ XRD ࣃࢱ࣮ࣥ࠿ࡽࡣࠊ୺せᵓᡂ┦ࡀࡍ࡛࡟
MgFeNbO5 ࡟࡞ࡗ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋMgFeNbO5 ⣔࡛ࡣࠊ⢊ᮎࡢ↝⤖཰⦰ࡀ኱ࡁࡃࠊ1200Υ௨ୖ࠾ࡼࡧ෭༷ᚋ࡛
ࡣୗᆅࡢ Pt ࢧࣥࣉࣝ࣍ࣝࢲ࣮ࡢࣆ࣮ࢡࡀ኱ࡁࡃ⌧ࢀ࡚࠸ࡓࠋ
Fig. 2 ࡟ MgFeNbO5 ↝⤖యࡢ SEM ෗┿ࢆ♧ࡍࠋMgFeNbO5 ⣔࡛ࡣẚ㍑ⓗ⦓ᐦ࠿ࡘ⢏ᡂ㛗ࡋࡓᚤ⣽⤌⧊ࡀᚓࡽࢀ
࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋ࡞࠾ࠊᮏඹྠ◊✲࡛ࡣ MgFeNbO5 ⣔࡛ࣘࢽ࣮ࢡ࡞ᚤᵓ㐀ᙧᡂࡀ⏕ࡌࡿࡇ࡜ࢆぢฟࡋ࡚࠾ࡾࠊヲ⣽࡟ࡘ࠸࡚ࡣࠊ⌧ᅾᢞ✏୰࡛࠶ࡿࠋ
− 33 −

 
Fig. 1. High-temperature in situ XRD patterns for MgCO3 (basic)-Fe2O3-Nb2O5 powder. Mg : Fe : Nb = 1 : 1 : 1 in mole
fraction. Top patterns in both figures were taken at room temperature after cooling.

Fig. 2. SEM image of bulk MgFeNbO5 ceramics sintered at 1250°C for 2 h.


ㅰ ㎡
 ᮏඹྠ◊✲ࢆᐇ᪋ࡍࡿ࡟㝿ࡋࠊཷධᢸᙜᩍဨࡢ㜿㒊ᾈஓ෸ᩍᤵ㸦ࢫ࣐࣮ࢺࣉࣟࢭࢫ◊✲ࢭࣥࢱ࣮㸧ࠊࡲࡓࠊ౗㛫࿴⏨ᵝ࡟኱ኚ࠾ୡヰ࡟࡞ࡾࡲࡋࡓࠋᮏ◊✲ࡢ୍㒊ࡣࠊ⛉◊㈝ᇶ┙◊✲㸦% ࠕᨃࣈࣝࢵ࢝࢖ࢺᆺᵓ㐀ࢆ᭷ࡍࡿప⇕⭾ᙇ࣭⎔ቃㄪ࿴ᆺࢭ࣑ࣛࢵࢡࢫከᏍయࡢᛂ⏝ࠖ㸦㸧࡟ࡼࡾຓᡂࡉࢀࡲࡋࡓࠋ  㸦ඹྠ◊✲ศ㔝 ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 34 −

࢖࢜ࣥఏᑟᛶ㧗ศᏊ࢔ࢡࢳ࢚࣮ࣗࢱ࡟ࡼࡿ⬟ືᆺ࢝ࢸ࣮ࢸࣝࡢ㛤Ⓨᐩᒣ኱Ꮫ኱Ꮫ㝔 ࢼࣀ᪂ᶵ⬟ᮦᩱᏛᇦ᳃  ⱥ ฼1. ⥴ ゝ࢝ࢸ࣮ࢸࣝ࡟ࡼࡿ⾑⟶ෆ᳨ᰝ࣭἞⒪ࡣప౵く࡛ᡭ⾡࡟క࠺ࣜࢫࢡࡀపࡃࠊᡭ⾡ᚋࡢ♫఍᚟ᖐࡶ㏿ࡸ࠿
࡞࡝฼Ⅼࡀከࡃࠊ௒ᚋࡢ฼⏝ቑຍࡀぢ㎸ࡲࢀࡿࠋᮏ◊✲࡛ࡣࠊ࢝ࢸ࣮ࢸࣝඛ➃࡟௜㝶ࡉࡏࡿ㧗ศᏊ࢔ࢡࢳ࢚࣮ࣗࢱࢆసᡂࡋࠊ㏻㟁ヨ㦂࡟ࡼࡿ࢔ࢡࢳ࢚࣮ࣗࢱࡢᒅ᭤ᣲື≉ᛶ࡜㟁ᴟᚤᵓ㐀࡜ࡢ㛵ಀࢆ୰ᚰ࡟⪃ᐹࡋࠊ⬟ືᆺ࢝ࢸ࣮ࢸࣝ࡬ࡢᛂ⏝ྍ⬟ᛶ࡟ࡘ࠸᳨࡚ウࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ
ࡇࢀࡲ࡛ࡣࠊ㔠ࣇ࢙ࢼࣥࢺࣟࣜࣥ㘒య⁐ᾮ࡛ࡢ྾╔࡜ள◲㓟ࢼࢺ࣒ࣜ࢘Ỉ⁐ᾮ࡛ࡢ㑏ඖ㐣⛬ࢆ⧞ࡾ㏉
ࡋࠊࣇࢵ⣲ᶞ⬡࢖࢜ࣥ஺᥮⭷(ࢼࣇ࢕࢜ࣥ⭷ࠊࢹ࣏ࣗࣥ♫〇)⾲㠃࡟㔠ࡵࡗࡁࢆ᪋ࡍ↓㟁ゎࡵࡗࡁᕤ⛬ࢆ᳨ウࡋ࡚ࡁࡓࠋᮏᡭἲ࡟ࡼࡾసᡂࡋࡓ⭷ࡢ㏻㟁ᐇ㦂࡛ࡣࠊ㟁ᅽ༳ຍᚋࡺࡗࡃࡾ࡜ኚ఩ࡍࡿᵝᏊࡀ☜ㄆࡉࢀࠊ࢔ࢡࢳ࢚࣮ࣗࢱ࡜ࡋ࡚ࡢ฼⏝ࡀྍ⬟࡛࠶ࡿࡇ࡜ࢆ♧ࡋࡓࠋࡋ࠿ࡋᚓࡽࢀࡓ᭱኱ኚ఩㔞 6mm ࡣ࢔ࢡࢳ࢚࣮ࣗࢱ࡜ࡋ࡚ࡣ༑ศ࡛࠶ࡿࡶࡢࡢᛂ⟅㏿ᗘࡀᴟࡵ࡚㐜ࡃࠊࡲࡓ⧞㏉ࡋ㏻㟁࡟ࡼࡿ㟁ᴟࡢ๝ࢀ࡞࡝ࡢ
ㄢ㢟ࡀ⏕ࡌࠊᐇ⏝໬ࡢࡓࡵ࡟ࡣືసᣲືࡢ෌⌧ᛶ࡜ᛂ⟅ᛶࡢྥୖࠊ࠾ࡼࡧ㟁ᴟࡢᏳᐃᛶࢆᅗࡿᚲせᛶࡀ♧ࡉࢀࡓࠋ  ᮏᖺᗘ࡛ࡣࡇࢀࡽࡢㄢ㢟࡟ࡘ࠸࡚ࠊ㔠ࡵࡗࡁ㟁ᴟࡢᚤ⣽ᵓ㐀ไᚚࡢほⅬࡼࡾࡉࡽ࡟ヲ⣽࡞᳨ウࢆ㐍ࡵࠊ⭷⾲㠃࠿ࡽᩘ ȝm ෆ㒊࡟ࣇࣛࢡࢱࣝᵓ㐀ࢆ᭷ࡍࡿ㔠㟁ᴟࡢ」ྜ໬ࢆ⾜࠸ࠊ1.5V-50 mA ௨ୗ࡛ࡢᛂ⟅㏿ᗘ࡜ᒅ᭤ືసࡢ෌⌧ᛶࢆഛ࠼ࡓ࢔ࢡࢳ࢚࣮ࣗࢱࢆ㛤Ⓨ┠ᶆ࡜ࡍࡿࠋ ᐇ㦂࠾ࡼࡧᐇ㦂᪉ἲ2.
 㧗ศᏊ⣲ᮦ࡜ࡋ࡚ࡣࠊ᫖ᖺᗘ࡜ྠᵝࡢࢹ࣏ࣗࣥ♫〇ࣇࢵ⣲⣔࢖࢜ࣥ஺᥮ᶞ⬡⭷࣭ࢼࣇ࢕࢜ࣥ(஝⇱ཌࡳ
175 m)ࢆ౑⏝ࡋࡓࠋࡲࡓ㟁ᴟࡢ〇⭷ࣉࣟࢭࢫࡶᇶᮏⓗ࡟ࡣ᫖ᖺᗘࡢᡭἲࢆ㋃くࡋࠊ⭷ࡢ๓ฎ⌮ᕤ⛬ࠊࡵࡗࡁᾎ(྾╔ᾎ࠾ࡼࡧ㑏ඖᾎ)ࡢ⟶⌮ࠊ⭷ࡢᚋฎ⌮ᕤ⛬ࢆ㔜Ⅼⓗ࡟᳨ウ࣭ᨵⰋࢆຍ࠼(Fig.1 ࠾ࡼࡧ 2)ࠊᛂ⟅ᛶࡢ㧗࠸࢔ࢡࢳ࢚࣮ࣗࢱࡢ㛤Ⓨࢆ┠ᣦࡋࡓࠋ⭷ࡢ๓ฎ⌮(1)80Υ⇕Ỉ୰࡟ 30 ศ㛫ᾐₕࡉࡏ࡚⾲㠃ࡢ⬺⬡ฎ⌮ࠊ(2) 80Υࡢ 10%-HCl ⁐ᾮ୰࡟ 30 ศ㛫ᾐₕࡉࡏ࡚࢚ࢵࢳࣥࢢฎ⌮ࠊ(3) 50Υ⇕Ỉ୰࡛ࡢỈὙฎ⌮ࢆ⾜࠸ࠊ3040 mm ࡢヨᩱ࡟௨ୗせ㡿࡟࡚↓㟁ゎࡵࡗࡁฎ⌮ࢆ⾜ࡗࡓࠋ
↓㟁ゎࡵࡗࡁἲ(྾྾╔࣭㑏ඖἲ)1-10 ࣇ࢙ࢼࣥࢺ୍ࣟࣜࣥỈ࿴≀ࡢỈ⁐ᾮࠊࢸࢺࣛࢡࣟࣟ㔠(Ϫ)㓟ࢼࢺ࣒ࣜ࢘஧Ỉ࿴≀ࡢỈ⁐ᾮࢆ 80Υ࡛᧠ᢾ࣭ΰྜࡋ࡞ࡀࡽῐ㯤ⰍỿẊࢆ⏕ᡂࡉࡏࠊࡇࢀࢆ᧠ᢾ࣭ศᩓࡉࡏ࡞ࡀࡽሷ໬࢔ࣥࣔࢽ࣒࢘ࢆῧຍࡋ
࡚㉥ᶳⰍࡢỿẊࢆ⏕ᡂࡉࡏࡓࠋᖖ ࡲ࡛ᨺ෭ᚋࠊỿẊ≀ࢆࢁ㐣ࠊὙίࡋ࡚෌⤖ᬗࡉࡏࠊ㔠ࣇ࢙ࢼࣥࢺࣟ
ࣜࣥ㓟㘒యࡢ⤖ᬗࢆㄪ〇ࡋࡓࠋࡇࡢ⤖ᬗࢆᖖ ࡢ⵨␃Ỉ࡛⁐࠿ࡋࠊ⃰ᗘࢆ 7.0 mM ࡟ㄪ〇ࡋ࡚྾╔⁐ᾮ
࡜ࡋࡓࠋ

Fig.1

࢔ࢡࢳ࢚࣮ࣗࢱసᡂ࣭ホ౯ἲࡢᴫせ    Fig.2− 35 −↓㟁ゎࡵࡗࡁἲ(྾╔㑏ඖἲ)ࡢ᧯సᴫせFig.3㟁ᴟࢆ᥋ྜࡋࡓࢼࣇ࢕࢜ࣥ⭷   

Fig.4

Fig.5

㟁ᴟᚤᵓ㐀ࡢᒅ᭤ኚ఩㔞࡬ࡢᙳ㡪      Fig.6 ౪ヨ⭷ࡢ⾲㠃࠾ࡼࡧ᩿㠃ࡢ㟁ᴟᚤᵓ㐀㏻㟁ヨ㦂࡟ࡼࡿᒅ᭤ᣲືࡢほᐹ๓ฎ⌮ࡋࡓࢼࣇ࢕࢜ࣥ⭷ࢆࠊ㔠ࣇ࢙ࢼࣥࢺࣟࣜࣥ㘒య⁐ᾮ࡟ 16 h ᾐₕࡉࡏ࡚㔠㘒య࢖࢜ࣥࢆ྾╔ࡉࡏࠊࡑࡢᚋள◲㓟ࢼࢺ࣒ࣜ࢘(⃰ᗘ 1 mM)⁐ᾮ୰࡛᧠ᢾࡋ࡞ࡀࡽ 3 h 㑏ඖ᧯సࢆ⾜ࡗࡓࠋ⭷ෆ㒊࡟㔠ࢆ
Fig.2)ࠋ࡞࠾ᾎ⟶⌮ᡂ㛗ࡉࡏ࡚༑ศ࡞ᑟ㟁ᛶࢆᚓࡿࡓࡵ࡟ࠊ྾╔㑏ඖࢆ 8 ᅇ⧞ࡾ㏉ࡋ࡚㟁ᴟࢆᡂ⭷ࡋࡓ(F࡛ࡣࠊ㔠㘒యࡢ྾╔ᾎ࡛࠶ࡿࣅ࣮࣮࢝ࡢቨ㠃ࢆ 1 ᅇࡢ྾╔㸦16 hr㸧ࡈ࡜࡟Ὑίࡋࠊࡲࡓள◲㓟ࢼࢺ࣒ࣜ࢘ࡢ㑏ඖᾎࡣ 1.5 hr ࡈ࡜࡟᪂ࡓ࡟ㄪ〇ࡋ┤ࡍࡇ࡜࡜ࡋࡓࠋ
3. ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ㟁ᴟࢆᡂ⭷ࡋࡓࢼࣇ࢕࢜ࣥ⭷(Fig.3)࠿ࡽ 225 mm ࡢࢧࣥࣉࣝࢆసᡂࡋࠊ┤ὶᏳᐃ໬㟁※࡟ࡼࡾࠊ㟁ᅽ 0.5 㹼 2.0 Vࠊ㟁ὶ 3 㹼 120 mA ࡛ືసほᐹࢆ⾜ࡗࡓࠋFig.4 ࡟ࡣࠊ᭱ࡶ኱ࡁ࡞ኚ఩㔞ࡀほᐹࡉࢀࡓ1.7 V – 100 mA ࡢሙྜࡢᒅ᭤ࡢᵝᏊࢆ♧ࡍࠋ᫖ᖺᗘࡢ᮲௳ୗ࡛సᡂࡋࡓ⭷࡛ࡣࠊ㏻㟁┤ᚋ࡟ 3 mm ᒅ᭤ࡋࠊࡑࡢᚋᚎࠎ࡟ኚ఩ࡀቑຍࡋࠊ᭱⤊ኚ఩㔞ࡢ 6 mm ࡟฿㐩ࡍࡿࡢ࡟ 60 s ࢆせࡋ࡚࠸ࡓࠋ௒ᅇసᡂࡋࡓ
⭷࡛ࡣࠊ㏻㟁┤ᚋ࡟ᅗࡢࡼ࠺࡞᭱኱ኚ఩㔞࡟฿㐩ࡋ࡚࠾ࡾࠊࡲࡓධຊ㟁ᅽࢆࢫࢸࢵࣉධຊࡸࢧ࢖ࣥ᭤⥺ධຊ࡟ኚ໬ࡉࡏࡓሙྜ࡟࠾࠸࡚ࡶࠊධຊ㟁ᅽ࡟ᑐᛂࡋࡓᒅ᭤ᣲືࢆ♧ࡍࡇ࡜ࢆ☜ㄆࡋ࡚࠸ࡿࠋࡉࡽ࡟⧞
㏉ࡋ㏻㟁ヨ㦂ࢆ⾜ࡗ࡚ኚ఩㔞ࡢ෌⌧ᛶࡶ☜ㄆࡋ࡚࠾ࡾࠊ᫖ᖺᗘ࡟ẚࡋ࡚࢔ࢡࢳ࢚࣮ࣗࢱ࡜ࡋ࡚ࡢᛂ⟅ᛶࠊ෌⌧ᛶࠊᏳᐃᛶࡀ኱ᖜ࡟ྥୖࡋ࡚࠸ࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋ࢔ࢡࢳ࢚࣮ࣗࢱࡢᒅ᭤ኚ఩㔞ࡣ㟁ᅽ࠾ࡼࡧ㟁ὶ࡟ẚ౛ࡋ࡚ቑຍࡋࠊFig.5 ࡟ 1.7 V ㏻㟁ヨ㦂࡟ࡼࡿኚ఩㔞࡜㟁ὶࡢ㛵ಀࢆ౛♧ࡋࡓࠋᅗࡢࢧࣥࣉࣝ A ࠾
ࡼࡧ B ࡣࠊFig.3 ࡟౛♧ࡋࡓ⭷࠿ࡽ᥇ྲྀࡋࡓ㒊ศ࡟ࡼࡿ㐪࠸ࢆ♧ࡋ࡚࠾ࡾࠊ୍ᵝ࡞ᡂ⭷ࡀᅔ㞴࡛࠶ࡗࡓࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋ⾲㠃࠾ࡼࡧ᩿㠃ࡢ SEM ᧜ീ(Fig.6)࠿ࡽࡣࠊኚ఩㔞ࡀ኱ࡁ࠸ A ࡛ࡣ⾲㠃㟁ᴟᒙཌࡉࡀ 5.4ȣmࠊෆ㒊ᾐ㏱῝ࡉࡀ 4ȣm ࡛ࠊB ࡣྛࠎ3.8ȣm ࡜ 11.3ȣm ࡛࠶ࡗࡓࠋ⾲㠃㟁ᴟᒙཌࡉ࡜ෆ㒊ᾐ
㏱῝ࡉࡀ࢔ࢡࢳ࢚࣮ࣗࢱᒅ᭤ኚ఩㔞࡟኱ࡁࡃ౫Ꮡࡍࡿࡇ࡜ࡀண᝿ࡉࢀࠊࡑࡢ᭱㐺໬ࢆ㐍ࡵࡿࡇ࡜࡟ࡼࡾࠊ
┠ᶆࡢ 1.5V-50 mA ௨ୗ࡛ኚ఩㔞 6 mm ⛬ᗘࡢ࢔ࢡࢳ࢚࣮ࣗࢱࡢᐇ⌧࡛ࡁࡿྍ⬟ᛶࡀ♧၀ࡉࢀࡓࠋ
(ඹྠ◊✲ศ㔝: ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝)− 36 −

Ⅳ㓟࢝ࣝࢩ࣒࢘ࢼࣀ⢏Ꮚࡢ⮬ᕫ⤌⧊ⓗ࡞㓄ྥ⌧㇟࡜ᶵ⬟᥈⣴ᐊ⹒ᕤᴗ኱Ꮫࡃࡽࡋ⎔ቃ⣔㡿ᇦ
ᒣ୰┿ஓ
1.

┠ⓗ

 ᡃࠎࡣ㸪ࢼࣀࢧ࢖ࢬࡢⅣ㓟࢝ࣝࢩ࣒࢘ࡀ㧗⃰ᗘ㸦㹼5 mass%㸧࡟ศᩓࡋࡓ㏱᫂ᾮయࢆ⏝࠸࡚㸪ࡇࢀࡲ࡛࡟⇍ᡂᗘࡀࢥࣟ࢖ࢻࡢจ㞟ᙧែ࡟ཬࡰࡍᙳ㡪ࢆ᳨ウࡋ࡚㸪ከᵝ࡞ከᙧ࣭ᙧ≧࣭ᵓ㐀ࡢ࣓ࢯ࣏࣮ࣛࢫయࢆࢸࣥࣉ࣮ࣞࢺࣇࣜ
࣮࡛ྜᡂࡋ࡚ࡁࡓ[1]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
2.

◊✲᪉ἲ [2] ࣓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⢓ᗘ್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 ࡛ 0㹼24 h ᧠ᢾࡋࡓ㸬࡞࠾㸪᧠ᢾ Re ࡢ್ࡣ 10㸪
300 rpm ࡛ࡑࢀࡒࢀ 140㸪
4000 ࡛࠶ࡿ
㸦Re=ǒ·n·d2/Ǎ, ศᩓᾮᐦᗘ ǒ=900 kg/m3㸪
᧠ᢾ㏿ᗘ n [s-1]㸪
⩼ᚄ d=5.0×10-2m㸪ศᩓᾮ⢓ᗘ Ǎ=2.78×10-3 Pa·s㸧㸬᧠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࡟ࡼࡿ࢝ࣝࢧ࢖ࢺ࡬ࡢ㌿⛣ࢆ⤒ࡿ㸪ࡍ࡞ࢃࡕ࢜ࢫࢺ࣡ࣝࢻẁ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ࡋࡓࡀࡗ࡚௒ᚋࡣ㸪ࢥࣟ࢖ࢻ࿘ᅖࡢỈࡢᩘᐦᗘ㸪᧠ᢾ Re ࡀᵓ㐀ኚ໬࡟ཬࡰࡍᙳ㡪ࢆ᳨ウࡍࡿᚲせࡀ࠶ࡿ㸬− 37 −

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− 38 −

୍⯡බເ◊✲ㄢ㢟࣭◊✲ሗ࿌᭩㻌⁐᥋࢔࣮ࢡ⌧㇟㸪⁐⼥ụ⌧㇟࠾ࡼࡧ⁐᥋㍺㏦⌧㇟ゎᯒ㸦஺ὶ TIG ⁐᥋࡟࠾ࡅࡿ࢔࣮ࢡࡢᣲືゎ᫂࡜ࡑࡢไᚚ࡟㛵ࡍࡿᇶ♏◊✲㸧ᐑᓮ኱ᏛᕤᏛᩍ⫱◊✲㒊 ᮌஅୗ ᗈᖾ㸬ࡣࡌࡵ࡟
஺ὶ TIG ⁐᥋࡟࠾ࡅࡿ㝜ᴟⅬࡢᣲືࡸ㓟໬⭷ࡢ㝖ཤ㐣⛬ࢆᐇ㦂࡟ࡼࡾほᐹࡍࡿ࡟ࡣ㸪㠀ᖖ࡟㧗࠸᫬㛫ศゎ⬟ࢆᣢࡘࣅࢹ࣓࢜࢝ࣛࢆഛ࠼ࡓィ ࢩࢫࢸ࣒ࡀᚲせ࡛࠶ࡿ㸬ࡲࡓ㸪ࢱࣥࢢࢫࢸࣥ㟁ᴟࡀ㝧ᴟ᫬ࡢࡳ࡟Ⓨ⏕ࡍࡿ㝜ᴟⅬࢆ㸪┠ⓗ࡜ࡍࡿ᫬้࡟࠾࠸࡚☜ᐇ࡟ほᐹ࡛ࡁࡿィ ᪉ἲࡢ☜❧ࡀᚲせ࡛࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪ࡲࡎ㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡜࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒ࢆ⏝࠸࡚㸪㟁ὶ࣭㟁ᅽࡢ ᐃ࡜ࣅࢹ࣓࢜࢝ࣛ࡟ࡼࡿ᧜ᙳࡢྠᮇࢆᅗࡿ࡜ඹ࡟㸪ࣅࢹ࣓࢜࢝ࣛࡢ͆Delay´ᶵ⬟ࢆ฼⏝ࡋ࡚㸪㟁ὶ࣭㟁ᅽࡢ ᐃ㛤ጞ᫬้࡜ࣅࢹ࣓࢜࢝ࣛࡢ᧜ᙳ㛤ጞ᫬้࡟᫬㛫ᕪࢆタࡅࡿࡇ࡜࡟ࡼࡾ㸪௵ពࡢ᫬้࡟࠾ࡅࡿ㝜ᴟⅬࡢⓎ⏕≧ἣࢆほᐹ࡛ࡁࡿࡼ࠺࡟ࡋࡓ㸬ḟ࡟㸪࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢ஺ὶ TIG ⁐᥋࡟࠾࠸࡚㸪㟁ὶ್࠾ࡼࡧࢩ࣮ࣝࢻ࢞ࢫ
ὶ㔞ࡀ⁐⼥ụ࡞ࡽࡧ࡟ࢡ࣮ࣜࢽࣥࢢ㡿ᇦ࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚㸪㝜ᴟⅬࡢ᧜ᙳ⤖ᯝ࡜⁐᥋㒊ࡢᵝ┦࡟ᇶ࡙࠸᳨࡚ウࡋࡓ㸬
㸬ᐇ㦂᪉ἲ
⁐᥋ᐇ㦂ࡢ⿦⨨࠾ࡼࡧィ ࢩࢫࢸ࣒ࡢᴫせᅗ 1 ࡣ஺ὶ TIG ⁐᥋࡟࠾ࡅࡿᐇ㦂⿦⨨࡞ࡽࡧ࡟ィ ࢩࢫࢸ࣒ࡢᴫせࢆ♧ࡍ㸬ᐇ㦂⿦⨨ࡣ㸪ࢸ࢕ࢢࢺ࣮ࢳ㸪࢖ࣥࣂ࣮ࢱᘧ஺ὶ㟁※㸦ࢲ࢖࣊ࣥ♫〇 DA300P㸧㸪࠾ࡼࡧࢩ࣮ࣝࢻ࢞ࢫ࡛ᵓᡂࡋࡓ㸬㟁ᴟᲬ࡟ࡣ 2.0%ࣛࣥࢱࢼῧຍࢱࣥࢢࢫࢸࣥ㟁ᴟᲬ㸦ᮾ㑥㔠ᒓ〇࢚ࣝࢱࣥ㸪┤ᚄ 3.2mm㸪㛗ࡉ 150mm㸧ࢆ⏝࠸ࡓ㸬㟁ᴟᲬࡢඛ➃ゅࡣ
60r࡛࠶ࡿ㸬⁐᥋ẕᮦ࡟ࡣ⦪ 50mm㸪ᶓ 50mm㸪ཌࡉ 10mm ࡢ࢔࣑ࣝࢽ࣒࢘ྜ㔠 A1050 ࢆ⏝࠸ࡓ㸬࢔࣮ࢡ㛗
ࡣ 5.0 mm ࡜ࡋࡓ㸬࡞࠾㸪⁐᥋ᐇ㦂࡛ࡣ⁐ຍᮦࢆ⏝࠸ࡎ࡟㸪࢔࣑ࣝࢽ࣒࢘ྜ㔠ᯈࡢ㟼Ṇ⁐᥋ࢆ⾜ࡗࡓ㸬஺ὶ㟁※ࡢ࿘Ἴᩘࡣ 70Hz㸪㟁ᴟࡢᴟᛶࡢ๭ྜ㸦EP ᫬㛫/㸦EN ᫬㛫㸩EP ᫬㛫㸧㸧ࡣ 0.3㸪࢖ࣥࣂ࣮ࢱᘧ஺ὶ㟁※ࡢ㟁ὶ್ࡣ㸪150A ࠶ࡿ࠸ࡣ 250A ࡟タᐃࡋࡓ㸬ࢩ࣮ࣝࢻ࢞ࢫ࡟ࡣ࣒࣊ࣜ࢘࢞ࢫࢆ⏝࠸㸪ࡑࡢὶ㔞ࢆ 15L/min࠶ࡿ࠸ࡣ 25 L/min ࡟タᐃࡋࡓ㸬ィ ࢩࢫࢸ࣒ࡣ㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ㸦ᓥὠ〇సᡤ♫〇 HPV-1㸪ࣇ࣮࣒࣮ࣞࣞࢺ 500,000fps㸧㸪ࢡࣛࣥࣉ࣓
࣮ࢱ㸦᪥⨨㟁ᶵᰴᘧ఍♫〇 HIOKI3285㸧
㸪࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒㸦KEYENCE ♫〇 NR-500 ࠾ࡼࡧ㧗㟁ᅽィ ࣘࢽࢵࢺ NR-HV04㸧㸪࠾ࡼࡧࣃ࣮ࢯࢼࣝࢥࣥࣆ࣮ࣗࢱ࣮࡛ᵓᡂࡋࡓ㸬⁐᥋᫬࡟࠾ࡅࡿ㟁ὶ್ࡣ㸪࢖ࣥࣂ࣮ࢱᘧ஺ὶ㟁※࡜⁐᥋ẕᮦ㸦࢔࣑ࣝࢽ࣒࢘ྜ㔠㸧㛫ࡢ㓄⥺࡟㸪ࢡࣛࣥࣉ࣓࣮ࢱࢆタ⨨ࡍࡿࡇ࡜࡟ࡼࡾ
ᐃࡋ㸪ࡑࡢࢡࣛࣥࣉ࣓࣮ࢱ࠿ࡽᚓࡽࢀࡓ࢔ࢼࣟࢢࢹ࣮ࢱࢆ࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒࡟ࡼࡾ཰㞟ࡋ࡚㸪ࣃ࣮ࢯࢼࣝࢥࣥࣆ࣮ࣗࢱ࣮࡟ 1s ࡈ࡜࡟グ㘓ࡋࡓ㸬⁐᥋᫬࡟࠾ࡅࡿ㟁ᅽࡣ㸪ࢸ࢕ࢢࢺ࣮ࢳ࡜⁐᥋ẕᮦ㛫ࡢ㟁఩ᕪࢆ┤᥋࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒࡟ࡼࡾ ᐃࡋ㸪㟁ὶ್࡜ྠ᫬࡟ 1s ࡈ࡜࡟ࣃ࣮ࢯࢼࣝࢥࣥࣆ࣮ࣗ
ࢱ࣮࡟グ㘓ࡋࡓ㸬㝜ᴟⅬࡢほᐹ᪉ἲ(1) ࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒ࡢࢺ࣮ࣜ࢞タᐃ᮲௳࡟࠾࠸࡚㸪ࢺ࣮ࣜ࢞ࡢᑐ㇟ࢆࠕ㟁ᅽࠖ࡜ࡋ㸪ࠕ࢚ࢵࢪࢺ࣮ࣜ࢞ࠖࢆ㑅ᢥࡍࡿ㸬ࡲࡓ㸪 ᐃ㛤ጞ᮲௳࡜ࡋ࡚㸪ࠕ❧ࡕୖࡀࡾࠖࢆ㑅ᢥࡋ㸪⁐᥋ࡀ㛤ጞࡉࢀ࡚❧ࡕୖࡀࡾࡢ㟁ᅽࡀ 3V ࢆ㉸࠼ࡓሙྜ࡟㟁ὶ࠾ࡼࡧ㟁ᅽࡢ
TIG Welding Power Supply
pp y
A300P)(DAIHEN, DA300P)
ᐃࡀ㛤ጞࡉࢀࡿࡼ࠺࡟タᐃࡍࡿ㸬ḟ࡟㸪 ᐃ᮲௳
Torch Switch
High Speed Camera࡟࠾࠸࡚㟁ὶ࠾ࡼࡧ㟁ᅽࡢ ᐃ㛫㝸ࢆ ȝV ࡟タᐃ(SHIMADZU, HPV-1)
ࡋ㸪 ᐃ᫬㛫ࢆ 50ms ࡜ࡍࡿ㸬TIG(2) ࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒ࡢࢺ࣮ࣜ࢞ฟຊಙ
Welding Torchྕࢆ㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟᥋⥆ࡍࡿ㸬ࡇࢀ࡟ࡼࡾ㸪
Shielding Gas(Helium Gas)
Clamp meterm㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࡀࢺ࣮ࣜ࢞ಙྕࢆཷࡅ࡚㸪㟁ὶ㸪(HIOKI, 3285)
Welding
Weldin Base Metal(t10 Pu
Pure Aluminium)
minium)m㟁ᅽࡢ ᐃ㛤ጞ᫬้࡜ྠ᫬࡟㉳ືࡍࡿࡼ࠺࡟࡞ࡿ㸬ࡉࡽ࡟㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࡢ᧜ᙳ᮲௳ࡢタᐃ࡟࠾
Data logger
PC
Trigger Unit
(KEYENCE, NR-500/NR-HV04)
࠸࡚㸪³'HOD\´ࢆタᐃࡍࡿࡇ࡜࡟ࡼࡾ㸪㟁ὶ㸪㟁ᅽ(Nac Image Technology, N9619)
ࡢ ᐃ㛤ጞ᫬้࡜ࣅࢹ࣓࢜࢝ࣛࡢ᧜ᙳ㛤ጞ᫬้࡟ᅗ 1㸬஺ὶ TIG ⁐᥋࡟࠾ࡅࡿᐇ㦂⿦⨨ࡢᴫ␎ᅗ
20

0

í

í

í

− 39 −

00.01

௵ពࡢ᫬㛫ᕪࢆタࡅࡿ㸬ᮏ◊✲࡛ࡣ³'HOD\´ࢆ 2ms ࡟タᐃࡋ࡚㝜ᴟⅬࢆほᐹࡋࡓ㸬ࡇࡢタᐃ࡟ࡼࡾ㸪⁐᥋㛤ጞ┤ᚋࡢ㝜ᴟⅬࡢⓎ⏕≧ἣࢆほᐹ࡛ࡁࡿࡼ࠺࡟࡞ࡿ㸬࡞࠾㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࡢ᧜ᙳ㛫㝸ࡣ ȝV㸪᧜ᙳ᫬㛫ࡣ 0.2 ms ࡛࠶ࡿ㸬㸱㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢ஺ὶ 7,* ⁐᥋࡟࠾࠸࡚㸪㟁ὶ್ࡢ኱ࡁࡉࢆ 150A ࠾ࡼࡧ 250A ࡢ 2 ㏻ࡾ㸪ࢩ࣮ࣝࢻ࢞ࢫ
ὶ㔞ࢆ 15L/min ࡜ 25L/min ࡢ 2 ㏻ࡾ࡟タᐃࡋࡓሙྜࡢ㝜ᴟⅬࡢⓎ⏕㡿ᇦ࠾ࡼࡧ⁐᥋㒊ࡢᵝ┦࡟ࡘ࠸࡚ẚ㍑࣭
᳨ウࡋࡓ㸬ᅗ 2 ࡣᮏィ ࢩࢫࢸ࣒࡟ࡼࡾᚓࡽࢀࡓ㟁ᅽ࣭㟁ὶἼᙧ(a)㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟ࡼࡾᚓࡽࢀࡓ㝜ᴟⅬࡢᵝ┦(b)㸪࠾ࡼࡧẕᮦࡢ⁐᥋㒊ࡢᵝ┦(c)ࢆ♧ࡍ㸬࡞࠾㸪ᅗ 2(b)ࡢ㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟ࡼࡾᚓࡽࢀࡓྛ
෗┿ࡣ㸪0.2ms 㛫࡟᧜ᙳࡉࢀࡓ 100 ᯛࡢ෗┿ࡢ࠺ࡕࡢ 1 ᯛ┠ࡢ෗┿ࢆ♧ࡋ࡚࠸ࡿ㸬ࡲࡓ㸪ᅗ 2(c)ࡢྛ෗┿ࡣ㸪ẕᮦࡢ⁐᥋ᚋࡢᵝ┦ࢆࢹࢪࢱ࣓࡛ࣝ࢝ࣛ᧜ᙳࡋࡓࡶࡢ࡛࠶ࡿ㸬㟁ὶ್ࡀ 150A ࡢሙྜ࡛ࡣ㸪250A ࡢሙྜ࡜ẚ㍑ࡋ࡚㸪⁐⼥ụࡀ᫂ࡽ࠿࡟ᑠࡉ࠸ࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ㸬ࡲࡓ㸪㝜ᴟⅬࡣẕᮦࡢ⁐⼥ụࡢእ⦕࠶ࡿ࠸ࡣࡑࡢእഃࡢ㡿ᇦ࡟఩⨨ࡍࡿࡇ࡜ࡀࢃ࠿ࡿ㸦Ᏻ஭Ặሗ࿌᭩ཧ↷ࡢࡇ࡜㸧㸬࡞࠾㸪㟁ὶ್ࡀ 250A ࡢሙྜ࡛ࡣ㸪㝜ᴟⅬࡣẕᮦࡢ⁐⼥ụෆ࡟ࡶⓎ⏕ࡋ࡚࠸ࡿࡼ࠺࡟ぢ࠼ࡿࡀ㸪㝜ᴟⅬࡢ᧜ᙳ᫬ᮇ࡜⁐᥋㒊ࡢ᧜ᙳ᫬ᮇࡀ␗࡞ࡿࡇ࡜࠿ࡽ㸦㝜ᴟⅬࡣ⁐᥋㛤ጞ᫬࡟᧜ᙳ㸪⁐᥋㒊ࡢᵝ┦ࡣ⁐᥋ᚋ࡟᧜ᙳ㸧㸪㝜ᴟⅬ࡜ẕᮦࡢ⁐⼥ụ࡜ࡢ┦ᑐⓗ࡞఩⨨㛵ಀ࡟ࡘ࠸࡚ࡣࡇࢀࡽࡢ෗┿࠿ࡽࡣࢃ࠿ࡽ࡞࠸㸬㟁ὶ್ࡢタᐃࢆ 250A ࡜ࡋ㸪ࢩ࣮ࣝࢻ࢞ࢫࡢὶ㔞ࢆ 25L/min ࠿ࡽ 15L/min ࡟ኚ࠼ࡓሙྜ࡛ࡣ㸪⁐⼥ụࡢ኱ࡁࡉ࡟ࡣ᫂☜࡞㐪࠸ࡣぢࡽࢀ࡞࠸ࡀ㸪ࢡ࣮ࣜࢽࣥࢢࡉࢀ࡚࠸ࡿ㡿ᇦࡀ᫂ࡽ࠿࡟⊃ࡃ࡞ࡗ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ㸬ࡲࡓ㸪㝜ᴟⅬࡢⓎ⏕≧ἣ࡟ࡣ㐪࠸ࡣぢࡽࢀ࡞࠿ࡗࡓ㸬㸲㸬࠾ࢃࡾ࡟
ᮏ◊✲࡛ࡣ㸪஺ὶ TIG ⁐᥋࡟࠾ࡅࡿ㝜ᴟⅬࡢほᐹ᪉ἲࡢ☜❧ࢆᅗࡾ㸪⁐᥋㛤ጞ᫬ࡢ㝜ᴟⅬࢆ☜ᐇ࡟ほᐹ࡛ࡁࡿࡼ࠺࡟ࡋࡓ㸬ࡲࡓ㸪࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢ஺ὶ TIG ⁐᥋࡟࠾࠸࡚㸪㟁ὶ್࠾ࡼࡧࢩ࣮ࣝࢻ࢞ࢫὶ㔞ࡀ⁐⼥ụ࡞ࡽࡧ࡟ࢡ࣮ࣜࢽࣥࢢ㡿ᇦ࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸᳨࡚ウࡋࡓ㸬ࡑࡢ⤖ᯝ㸪㟁ὶ್ࡢ኱ࡁࡉࡀ⁐⼥ụࡢ኱ࡁࡉ㸦⁐ࡅ㎸ࡳ῝ࡉ㸧࡟ᙳ㡪ࢆཬࡰࡍࡇ࡜㸪ࢩ࣮ࣝࢻ࢞ࢫὶ㔞ࡀࢡ࣮ࣜࢽࣥࢢ㡿ᇦࡢ኱ࡁࡉ࡟ᙳ㡪ࢆཬࡰࡍࡇ࡜
ࢆ☜ㄆࡋࡓ㸬㝜ᴟⅬࡢⓎ⏕఩⨨࡟㛵ࡋ࡚ࡣ㸪㟁ὶ್ 150A ࡢᐇ㦂⤖ᯝ࠿ࡽ㸪ẕᮦࡢ⁐⼥ụࡢእ⦕࠶ࡿ࠸ࡣࡑ
ࡢእഃࡢ㡿ᇦ࡟఩⨨ࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬

10

300

rate: 25L/min

0
-10

200

300

10

Current

5100

Voltage

0
-5

-100

-30

100

Current
2

4

6

8

10

12

Current 250 A
He gass flow rate
25L/min

-15
-20

-40
14

16

18

20

0

-25
0

15

2

4

6

8

10

12

-300

5

14

16

18

-500
20

100

0
-100

-5

Voltage-15-300

Current

-20
-25
0

2

4

6

8

10

12

Time (ms)Time (ms)300

Current 250 A
He gass flow rate
15L/min

10

-10

-10

-20

-50
0

15

Photographing start

20

Current (A)400

Voltage (V)Voltage࣭ Current: 150 A
࣭ Shielding gas flow

20

Current (A)30

Photographing start

20

500

25

500

25

500

Current (A)Photographing start time:
2.0 ms later

40

Voltage (V)Voltage (V)(a) 50

14

16

18

-500
20

Time (ms)ᅗ 2 㟁ὶ࣭㟁ᅽࡢ ᐃ⤖ᯝ(a)㸪㝜ᴟⅬࡢⓎ⏕≧ἣ(b)㸪⁐᥋㒊ࡢᵝ┦(c)㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 40 −

⇕ࣉࣛࢬ࣐ᮦᩱࣉࣟࢭࢫࡢᩘ್ィ⟬ࢩ࣑࣮ࣗࣞࢩࣙࣥ
ᮦᩱ࡜ࡢቃ⏺࡟㔜┦ᵓ㐀ࢆ᭷ࡍࡿ㧗㏿࢞ࢫ྿௜ࡅ࢔࣮ࢡࣉࣛࢬ࣐ࡢ㟁☢⇕ὶయゎᯒ
㔠ἑ኱Ꮫ
⏣୰ᗣつ
1.

┠ⓗ
⏘ᴗ⏺࡟࠾࠸࡚฼⏝ࡉࢀࡿ࢔࣮ࢡࣉࣛࢬ࣐ࡣ㸪㏻ᖖ㸪ᅛయࡢ㟁ᴟ㛫࡟⏕ࡌࡉࡏࡿࠋᅛయ㟁ᴟ࡜࢔࣮ࢡࣉࣛ

ࢬ࣐ࡢ᥋ゐ㒊ศ࡟࠾࠸࡚ࡣ㸪ᅛయ㟁ᴟࡀ⁐⼥࣭ὶືࡋ㸪࠿ࡘ⵨Ⓨࡋ࡚࠸ࡿࠋ࢔࣮ࢡࡢ⇕ධຊࡀ㠀ᖖ࡟㧗࠸ሙྜ࡟ࡣ㸪ࡑࡢᾮ┦࠿ࡽẼ┦࡬ࡢ┦㌿⛣ࡀᛴ⃭࡟⏕ࡌࡿࡓࡵ㸪㔠ᒓ⵨Ẽࡀࢪ࢙ࢵࢺ≧࡟㧗㏿࡟ᄇὶࡍࡿࠋࡇࡢ
ࡼ࠺࡟㸪࢔࣮ࢡ࣭ᅛయࡢ᥋ゐቃ⏺࡟࠾࠸࡚ࡣᅛ┦࣭ᾮ┦࣭Ẽ┦࣭ࣉࣛࢬ࣐ࡢ㸲ࡘࡢ┦ࡀᒁᡤⓗ࡟ΰᅾࡍࡿ㠀
ᖖ࡟」㞧࡞㔜┦ᵓ㐀≧ែ࡜࡞ࡗ࡚࠸ࡿࠋࡲࡓࡉࡽ࡟཯ᛂᛶࡢ㧗࠸ศᏊᛶ࢞ࢫࢆ౑⏝ࡍࡿሙྜ㸪㟁ᴟ⾲㠃࡟࠾࠸࡚㓟໬࣭ࣇࢵ໬࡞࡝ࡢ໬Ꮫ཯ᛂࡀ⏕ࡌࡿࠋࡇࢀࡽࡢ」㞧⌧㇟ࡀ㟁ᴟࡢᦆ⪖ࡸ⵨Ⓨΰධ㔞ࢆỴᐃࡋ࢔࣮ࢡࣉ
ࣛࢬ࣐ࡢ≉ᛶ࡟኱ࡁ࡞ᙳ㡪ࢆ୚࠼ࡿࠋ௨ୖࡢ」㞧࡞⌧㇟ࢆヲ⣽࡟᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟ࡣ㸪ᩘ್ゎᯒ࡟ࡼࡿ࢔
ࣉ࣮ࣟࢳࡀ᭷ຠ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࡇࢀࡲ࡛࡟⥅⥆ⓗ࡟㸪ᅛయࡢ⁐⼥࣭㧗㏿⵨Ⓨࢆక࠺࢔࣮ࢡ-㟁ᴟ┦஫స⏝⌧㇟ࡢࣔࢹࣜࣥࢢ࠾ࡼࡧᩘ್ゎᯒࢆ⾜ࡗ࡚ࡁ࡚࠸ࡿࠋࡇࡇ࡛ࡣ࠾ࡶ࡟㧗㏿࢞ࢫὶࢆక࠺࢔࣮ࢡษ᩿ࢺ࣮ࢳࢆ
ᑐ㇟࡜ࡋ㸪⁐⼥࣭⵨Ⓨࢆక࠺㟁ᴟ-⇕ࣉࣛࢬ࣐┦஫స⏝㸪㧗㏿࢞ࢫ࡜ࡢ┦஫స⏝ࡢゎ᫂ࢆ┠ᣦࡋ࡚࠸ࡿࠋᮏᖺ
ᗘࡣ㸪ࣉࣛࢬ࣐ࢺ࣮ࢳෆࡢ㧗㏿࢞ࢫὶሙ࡟╔┠ࡋ㸪㝜ᴟ࣍ࣝࢲᙧ≧ࢆኚ᭦ࡋࡓሙྜࡢ࢞ࢫὶ㏿ሙ࡬ࡢᙳ㡪ࢆ᳨ウࡋࡓࠋ
2. ◊✲᪉ἲ
௒ᖺᗘ(H26 ᖺᗘ)ࡣ㸪๓ᖺᗘ࡜ྠᵝ࡟ィ⟬ᑐ㇟ࢆᮏ◊✲ᐊᡤᒓࡢࣉࣛࢬ࣐ษ᩿⿦⨨ࡢ࢔࣮ࢡࣉࣛࢬ࣐ࢺ࣮ࢳ
᩿㠃࡜ࡋࡓࠋᅗ 1 ࡟㸪࢔࣮ࢡࣉࣛࢬ࣐ࢺ࣮ࢳࡢィ⟬✵㛫ࢆ♧ࡍࠋᮏィ⟬࡟࠾࠸࡚ࡣ㸪࢔࣮ࢡࣉࣛࢬ࣐࣭࢞ࢫ
㒊㸪㟁ᴟᅛయ㒊㸪ࣀࢬࣝᅛయ㒊ࡢ࡯࠿㸪࢔࣮ࢡࣉࣛࢬ࣐࡜㔠ᒓ㟁ᴟ࡜ࡢ᥋ゐ㒊㸪⁐⼥㒊ࡶᗘィ⟬ࡢᑐ㇟࡜

ࡍࡿࠋࡓࡔࡋၥ㢟ࢆ⡆༢໬ࡍࡿࡓࡵ࡟ḟࡢࡼ࠺࡟௬ᐃࡋࡓࠋ(i) ࢔࣮ࢡࣉࣛࢬ࣐࣭࢞ࢫ࡛ࡣᒁᡤ⇕ᖹ⾮≧ែ(LTE)ࡀᡂ❧ࡍࡿࠋ(ii) ࢞ࢫὶࡣᒙὶ࡛࠶ࡾ㸪஘ὶࡢຠᯝࡣ↓どࡍࡿࠋ(iii) ࢔࣮ࢡࣉࣛࢬ࣐࣭࢞ࢫ࡟࠾ࡅࡿග
෌྾཰ࡣ㸪Ἴ㛗 200 nm ࡢࡶࡢ࡟ᑐࡋᨺᑕಀᩘࡢ 20%⛬ᗘ࡜ࡍࡿࠋ(iv) 㟁⏺ࡣ࢔࣮ࢡࣉࣛࢬ࣐ࡢ㍈᪉ྥᡂศࡢ
ࡳ㸪☢⏺ࡣ࿘ᅇ᪉ྥᡂศࡢࡳ࡜ࡍࡿࠋ(v) 㟁ᴟࡢ⁐⼥ụ࡟࠾ࡅࡿὶືࡣ↓どࡍࡿࠋ(vi) 㟁ᴟࡢ㓟໬཯ᛂࡣ↓どࡍࡿࠋࡇࡢ௬ᐃࡢୗ࡛ḟࡢࡼ࠺࡟ィ⟬ࡋ࡚࠸ࡿࠋࡲࡎ࢞ࢫ࣭࢔࣮ࢡࣉࣛࢬ࣐㒊ศ࡟ࡘ࠸࡚ࡣ㸪㉁㔞ಖᏑ࣭㐠ື㔞ಖᏑ࣭࢚ࢿࣝࢠ࣮ಖᏑᘧࡢ࡯࠿㸪Hf 㟁ᴟ⵨Ẽࡢ㉁㔞ಖᏑᘧࢆゎ࠸ࡓࠋᅛయ࣭ᾮయ㒊ศ࡟࠾࠸࡚ࡣ㸪⁐⼥₯⇕ࢆ⪃៖ࡋ࡞ࡀࡽ࢚ࢿࣝࢠ࣮ಖᏑᘧࡢࡳࢆゎࡃࡇ࡜࡛ᅛయෆ㒊ᗘศᕸࢆィ⟬ࡋࡓࠋ⇕ࣉࣛࢬ࣐-Hf 㝜ᴟ㠃࡟࠾࠸࡚ࡣ㸪⇕㟁Ꮚᨺฟຠᯝ㸪࢖࢜ࣥࡢ⾲㠃෌⤖ྜ࡟ࡼࡿຍ⇕ຠᯝ㸪⇕ࣉࣛࢬ࣐࠿ࡽࡢ⇕ఏ㐩㸪Hf ⾲㠃࠿ࡽࡢ⇕ᨺᑕ㸪⵨Ⓨ࡟క࠺࢚ࢿࣝࢠ࣮ᦆኻ㸦⵨Ⓨ₯⇕㸧࡞࡝ࢆ⪃៖ࡋࡓࠋHf 㝜ᴟࡢ⵨Ⓨ㔞ࡣ㸪⵨Ⓨࣇࣛࢵࢡࢫ࡜
෌ሁ✚ࣇࣛࢵࢡࢫࡢᕪ࡟ࡼ
ࡗ࡚Ỵࡲࡿ࡜ࡋࡓࠋ⵨Ⓨࣇࣛࢵࢡࢫࡣ㸪ࡲࡎ㣬࿴⵨Ẽᅽ ࢆ Clausius-Clapeyron ᘧ࠿ࡽồࡵ㸪ࡑࢀࢆ⏝࠸࡚
Hertz-Knudsen ᘧ࠿ࡽᗘࡢ㛵ᩘ࡜ࡋ࡚ィ⟬ࡋࡓࠋ෌ሁ
✚ࣇࣛࢵࢡࢫࡣ㸪ࣛࣥࢲ࣒⢏Ꮚ᮰࠿ࡽᗘ࡜ Hf ⵨Ẽ㉁㔞ศ⋡ࡢ㛵ᩘ࡜ࡋ࡚ィ⟬ᅗ 1. ࣉࣛࢬ࣐ࢺ࣮ࢳ᩿㠃ᴫせ࡜ィ⟬✵㛫

− 41 −

ࡋࡓࠋ࢔࣮ࢡࣉࣛࢬ࣐㒊ศࡢィ⟬࡟ᚲせ࡞㓟⣲ࣉࣛࢬ࣐࣭Hf ⵨Ẽࡢ⇕ຊᏛ㍺㏦≉ᛶࡣ㸪ࡲࡎ⇕ᖹ⾮ࢆ௬ᐃࡋࡓ⢏Ꮚ⤌ᡂィ⟬ࢆィ⟬ࡋ㸪ྛ⢏Ꮚ㛫ࡢ⾪✺✚ศࢹ࣮ࢱࢆ⏝࠸࡚ Chapman - Enskog ἲࡢ➨୍ḟ㏆ఝ࠿ࡽィ⟬ࡋࡓࠋᨺᑕಀᩘࡣ⥺ࢫ࣌ࢡࢺ࣭ࣝ
ไືᨺᑕ࣭෌⤖ྜᨺᑕࢆ⪃៖ࡋ࡚ୖグ௬ᐃ࡟ᇶ࡙
࠸࡚ィ⟬ࡋࡓࠋᮏᖺᗘࡣ㸪ᅗ 1 ࡟࠶ࡿࡼ࠺࡟㖡〇ࡢ㝜ᴟ࣍ࣝࢲ࡟✺㉳ࢆタࡅࡿࡇ࡜࡛㸪㝜ᴟ๓㠃ࡢὶࢀࢆไᚚࡋ㸪㝜ᴟ⾲㠃ᗘࢆኚ᭦ྍ⬟࠿᳨ウࡋ

ࡓࠋᅗ 1 ࡟ᑐࡋ࡚㸪㝜ᴟ࣍ࣝࢲࡢᙧ≧ࢆࡣᖹࡽ࡞
ᙧ≧㸪✺㉳ࢆ᭷ࡍࡿᙧ≧࡜ࡋࡓࠋࡇࢀࡽࡢᙧ≧ࡢ㝜ᴟ࣍ࣝࢲ࡟ᑐࡋ࡚㸪࢞ࢫὶ㏿ሙ࡬ࡢᙳ㡪ࢆ᳨ウ
ࡋࡓࠋ

3.

ィ⟬⤖ᯝ
ᅗ 2 ࡣ㸪ᅗ 1 ࡢྛ㝜ᴟ࣍ࣝࢲᙧ≧࡟ᑐࡍࡿᅽຊ

0.9MPa, 100A ࡢ࢔࣮ࢡࣉࣛࢬ࣐࡟ᑐࡍࡿ࢞ࢫὶ㏿࣋ࢡࢺࣝሙࡢィ⟬⤖ᯝ࡛࠶ࡿࠋࢫ࣮࣡ࣝゅࡣ 15ᗘࡢࡶࡢ࡛࠶ࡿࠋྠᅗ࠿ࡽ㸪࠸ࡎࢀࡢ㝜ᴟ࣍ࣝࢲᙧ≧࡟ᑐࡋ࡚ࡶ㸪ィ⟬✵㛫ᕥഃ࠿ࡽὶධࡋ࡚ࡁࡓ
࢞ࢫࡣ㸪࢔࣮ࢡࢺ࣮ࢳ㍈௜㏆ࡢ࢔࣮ࢡ✵㛫ෆ࡟ධ

ᅗ 2. ィ⟬ᑐ㇟࡜ࡋࡓ 3 ✀ࡢ㝜ᴟ࣍ࣝࢲᙧ≧࡟ᑐࡍࡿࡿ࡜ᛴ⃭࡟ຍ㏿ࡋ㸪࢞ࢫὶ㏿ࡀ㠀ᖖ࡟㏿ࡃ࡞ࡗ࡚࢞ࢫὶ㏿ࡢィ⟬⤖ᯝ࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡇࢀࡣ࢞ࢫࡀ࢔࣮ࢡෆ࡟࠾࠸
࡚ᗘࡀ㧗ࡃゎ㞳࣭㟁㞳ࡍࡿࡇ࡜࡛⢏Ꮚᩘࡀቑࡋ㸪㉁㔞ಖᏑᘧࡀ‶ࡓࡉࡏࡿࡼ࠺࡟㏿ᗘࡀ㏿ࡃ࡞ࡿࡓࡵ࡛࠶ࡿࠋࡲࡓ㸪ᖹ㠃ࡢ㝜ᴟ࣍ࣝࢲ h(o)ࡢሙྜ࡟
ࡣ㸪㝜ᴟ๓㠃࡟࠾࠸࡚࢞ࢫὶࡣ࢞ࢫὶฟཱྀ࡬ྥ࠿
ࡗ࡚ὶࢀ࡚࠸ࡿࠋ୍᪉㸪㝜ᴟ࣍ࣝࢲ࡟✺㉳ࡀ࠶ࡿሙྜ࡟ࡣ㸪㝜ᴟ๓㠃࡟㝜ᴟ㠃࡟ྥ࠿࠺ὶࢀࡀ࡛ࡁ
࡚࠸ࡿࠋᅗ 3 ࡣ㸪㍈᪉ྥὶ㏿ࡢ࢔࣮ࢡ㍈ୖศᕸ࡛࠶ࡿࠋྠᅗ࡟࠾࠸࡚ᶓ㍈ 1.4 mm ఩⨨ࡀ Hf 㝜ᴟ㠃఩⨨࡟┦ᙜࡍࡿࠋh(o)ࡢሙྜ࡟ࡣ㸪㍈᪉ྥὶ㏿ࡣ࠸ࡎࢀࡢ఩⨨࡟࠾࠸࡚ࡶṇ࡜࡞ࡗ࡚࠾ࡾ㸪࢞ࢫὶࡀὶฟཱྀ࡟ྥ࠿ࡗ࡚࠸ࡿࡇ࡜ࢆ⾲ࡋ࡚࠸ࡿࠋ୍᪉㸪㝜ᴟ࣍ࣝࢲࡢ✺㉳ࡀ㧗࠸ h(b)ࡢᙧ≧ࡢሙྜ࡟ࡣᶓ
㍈఩⨨ 1.4 mm ࠿ࡽ 2.3 mm ࡢ⠊ᅖ࡛㍈᪉ྥ࢞ࢫὶ
㏿ࡀ㈇࡟࡞ࡗ࡚࠸ࡿࠋࡇࢀࡣ㝜ᴟ⾲㠃࡟ྥ࠿ࡗ࡚

ᅗ 3. ㍈᪉ྥὶ㏿ࡢ㍈᪉ྥศᕸィ⟬⤖ᯝὶࢀࡀᙧᡂࡉࢀࡿࡇ࡜ࢆ⾲ࡋ࡚࠸ࡿࠋࡇࡢὶࢀ࡟
ࡼࡾ㸪㝜ᴟ๓㠃㒊࡛⵨Ⓨࡋࡓ Hf ࡀ࢞ࢫὶฟཱྀ࡟᤼ฟࡉࢀࡎ⁫ࡿࡇ࡜࡛ Hf ࡢ෌ሁ✚ࢆಁࡋ㸪ᐃᖖᦆ⪖㔞ࢆᢚ࠼ࡽࢀࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 42 −

䝺䞊䝄䜢⏝䛔䛯 Ar-GMA ⁐᥋䛾Ᏻᐃ໬ᅜ❧◊✲㛤Ⓨἲே ≀㉁࣭ᮦᩱ◊✲ᶵᵓ ඖ⣲ᡓ␎ᮦᩱࢭࣥࢱ࣮
୰ᮧ ↷⨾
䠍䠊┠ⓗ㻌
⣧ Ar ࢩ࣮ࣝࢻ࢞ࢫ୰࡛ࢯࣜࢵࢻ࣡࢖ࣖࢆ⏝࠸࡚ GMA ⁐᥋ࢆ⾜࠺࡜࣡࢖ࣖඛ➃㒊࡟ࡣᅗ㸯࡟♧ࡍࡼ࠺࡟㛗ࡃఙࡧࡓ⁐⼥㔠ᒓᾮᰕࡀ⏕ࡌ࡚⁐᥋ࡀ୙Ᏻᐃ࡟࡞ࡿࠋࡇࡢࡓࡵࠊAr ࢩ࣮ࣝࢻ࢞ࢫࢆ⏝࠸ࡓ GMA ⁐᥋ (Ar-GMA

㻺㼛㼦㼦㼘㼑㼃㼕㼞㼑⁐᥋)࡛Ᏻᐃ࡞⁐᥋ࢆ⾜࠺ࡓࡵ࡟ࡣࠊ⼥Ⅼࡢ␗࡞ࡿᮦᩱࢆ⤌ࡳྜࢃࡏࡓྠ
㻯㻸㻹

㍈」ᒙ࣡࢖ࣖ࡟ࡼࡾ⁐⼥㔠ᒓᾮᰕࢆ▷ࡃࡍࡿࡇ࡜ࡀᚲせ࡛࠶ࡿ 1)ࠋྠ㍈」
ᒙ࣡࢖࡛ࣖࡣࠊ⼥Ⅼࡢ␗࡞ࡿᮦᩱࢆⰺ⥺(ෆഃ)࡜ࣇ࣮ࣉ(እഃ)࡟౑⏝ࡍࡿࡇ࡜࡟ࡼࡾࠊ࣡࢖ࣖඛ➃㒊ࡢ⁐⼥ᣲືࢆኚ࠼࡚⁐⼥㔠ᒓᾮᰕ (CLM:㻭㼞㼏Column of molten liquid metal) ࢆ▷ࡃࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡇࡢࡼ࠺࡟ Ar-㻿㼡㼞㼒㼍㼏㼑㻌㼛㼒㻌㼟㼜㼑㼏㼕㼙㼑㼚

GMA ⁐᥋࡛ࡣ⁐⼥㔠ᒓᾮᰕࢆ▷ࡃࡍࡿࡇ࡜ࡀ㔜せ࡜࡞ࡿࡀࠊูࡢ᪉ἲ࡛

㻝㻜㻌㼙㼙

⁐⼥㔠ᒓᾮᰕࢆ▷ࡃ࡛ࡁࢀࡤྠ㍈」ᒙ࣡࢖ࣖ࡜ྠ➼࡞ຠᯝࡀᚓࡽࢀࠊᏳᐃ
࡞ Ar-GMA ⁐᥋ࡀྍ⬟࡟࡞ࡿࠋࡇࢀࢆᐇ⌧ࡍࡿ࡟ࡣ㠀᥋ゐ࡛㧗⢭ᗘ࡞ษ᩿ࡀ࡛ࡁࡿ࣮ࣞࢨࢆ౑⏝ࡍࡿࡇ࡜ࡀ᭷ຠ࡛࠶ࡿࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣ⁐᥋࢔࣮ࢡ୰࡛⁐⼥㔠ᒓᾮᰕࢆ࣮ࣞࢨ࡛ษ᩿࣭㝖ཤࡍࡿࡓࡵࡢᇶ♏ⓗ᳨ウ

ᅗ 1 ⣧ Ar ࢩ࣮ࣝࢻ࢞ࢫ୰࡛
࣡࢖ࣖඛ➃࡟⏕ࡌࡿ⁐⼥㔠ᒓᾮᰕࢆ⾜ࡗࡓࠋ㸰䠊ᐇ㦂᪉ἲ
ᐇ㦂࡟⏝࠸ࡓ⿦⨨ࡢᴫ␎ࢆᅗ㸰࡟♧ࡍࠋ10 kW ࡢࣇ࢓࢖ࣂ࣮࣮ࣞࢨ (ࣇ࢓࢖ࣂ࣮ᚄ 0.2 mm㸪↔Ⅼ㊥㞳:250mm)ࢆ౑⏝ࡋࡓࠋ࣮ࣞࢨⓎ᣺ᙧែࡣ PW ࡛ࠊࣃࣝࢫ࿘Ἴᩘࡣ 10 Hz ࡛࠶ࡿࠋࢥࣥࢱࢡࢺࢳࢵࣉඛ➃㸦ࣀࢬࣝඛ➃㸧࠿ࡽ 10 mm 㞳ࢀࡓ࣡࢖ࣖ⾲㠃࠿ࡽ 2 mm ୖࡢ࡜ࡇࢁࢆ↔Ⅼ࡜ࡍࡿࡼ࠺࡟࣮ࣞࢨ࣊ࢵࢻࡢ఩⨨ࢆㄪᩚࡋࡓࠋ⁐᥋ᶵࡣ᭱኱ 500 A ࡀ౑⏝࡛ࡁࡿᕷ㈍ࡢ⁐᥋ᶵࢆ౑⏝ࡋࡓࠋࢩ࣮ࣝࢻ࢞ࢫࡣ⣧ Ar ࢞ࢫࢆ౑⏝ࡋࠊὶ㔞ࡣ
25 l/min ࡛࠶ࡿࠋᕷ㈍ࡢ㗰⏝⁐᥋࣡࢖ࣖ(࣡࢖ࣖᚄ㸸0.9 mm)ࢆ౑⏝ࡋࠊ⁐᥋᮲௳ࡣ㟁ὶ㸸250 Aࠊ㟁ᅽ㸸34 㹔ࠊ⁐᥋㏿ᗘ㸸30 m/minࠊ࣡࢖ࣖ㏦⤥㏿ᗘ㸸5.0 m/min ࡛࠶ࡿࠋࡉࡽ࡟⁐᥋࣡࢖ࣖࡢ⁐⼥ᣲືࢆ㧗㏿ᗘࣅࢹ࣓࢜࢝
ࣛ(᧜ᙳ㏿ᗘ㸸10000 frame/s)࡛ほᐹࡋࡓࠋ㻸㼍㼟㼑㼞㻌㼔㼑㼍㼐㻸㼍㼟㼑㼞㻌㼔㼑㼍㼐㼀㼛㼞㼏㼔㻺㼛㼦㼦㼘㼑
㻸㼍㼟㼑㼞㼀㼛㼞㼏㼔㻌㼍㼚㼓㼘㼑
㻠㻡㼻

㼃㼕㼞㼑

㻺㼛㼦㼦㼘㼑

㻿㼜㼑㼏㼕㼙㼑㼚

ᅗ 2 ࣮ࣞࢨࢆ౑⏝ࡋࡓ⁐⼥㔠ᒓᾮᰕࡢษ᩿࣭㝖ཤࢩࢫࢸ࣒

− 43 −

㸱䠊ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ࣮ࣞࢨࡢࣃࣝࢫࣆ࣮ࢡࢆ 6.0 kW ࡜ࡋࠊ࣡࢖ࣖඛ➃㒊ࡢ⁐⼥㔠ᒓ㻮㼑㼒㼛㼞㼑㻌㼘㼍㼟㼑㼞㻌㼕㼞㼞㼍㼐㼕㼍㼠㼕㼛㼚㻌ᾮᰕࡢษ᩿ᣲືࢆほᐹࡋࡓ⤖ᯝࢆᅗ㸱࡟♧ࡍࠋ࣮ࣞࢨ↷ᑕ๓࡛ࡣ࣡

㻱㼍㼞㼘㼥㻌㼟㼠㼍㼓㼑㼟㻌㼛㼒㻌㼘㼍㼟㼑㼞㻌㼕㼞㼞㼍㼐㼕㼍㼠㼕㼛㼚࢖ࣖࡢඛ➃࡟ࡣ⁐⼥㔠ᒓᾮᰕ㸦CLM㸧ࡀ⏕ࡌ࡚࠸ࡿ(ᅗ㸱(a)㸧
ࠋ࣮ࣞ

㻸㼍㼟㼑㼞

ࢨࡀ↷ᑕࡉࢀࡿ࡜ࠊCLM ࡀษ᩿ࡉࢀࡿ(ᅗ㸱 (b))ࠋࡑࡢᚋࡣࠊᅗ㸱

㻯㻸㻹
㼃㼕㼞㼑

(c)࡟♧ࡍࡼ࠺࡟ CLM ࡀᢡࢀ᭤ࡀࡾ㛗ࡃఙࡧ࡚࠸ࡿࠋࡇࡢ≧ែࡣ࣮ࣞࢨ↷ᑕࡀ⤊஢ࡍࡿࡲ࡛⥆ࡁࠊ࣮ࣞࢨ↷ᑕ⤊஢ᚋ࡟ࡣ CLM ࡣ๓ࡢ㻮㼞㼛㼗㼑㼚㻌㻯㻸㻹㻭㼞㼏≧ែ࡟ᡠࡗࡓ(ᅗ㸱(d)㸧
ࠋ࣮ࣞࢨࡀᙜࡓࡗࡓ㒊ศࡢ཯㊴ຊ࡟ࡼࡾ CLMࡀ᭤ࡀࡾຠᯝⓗ࡞ษ᩿࡟ࡣ⮳ࡽ࡞࠿ࡗࡓࠋCLM ࡟࣮ࣞࢨࢆ┤᥋↷ᑕࡋࡓࡢ࡛ࡣᏳᐃ࡞ษ᩿ࡣᚓࡽࢀ࡞࠿ࡗࡓࠋ

䠽䠾㻸㼍㼟㼑㼞㻌㼕㼞㼞㼍㼐㼕㼍㼠㼕㼛㼚㻭㼒㼠㼑㼞㻌㼠㼔㼑㻌㼑㼚㼐㻌㼛㼒㻌㼘㼍㼟㼑㼞㻌㼕㼞㼞㼍㼐㼕㼍㼠㼕㼛㼚ࡑࡇ࡛ࠊ࣮ࣞࢨࢆ↷ᑕࡋ࡚ࡶ᭤ࡀࡽ࡞࠸㒊఩࡟࣮ࣞࢨࢆ↷ᑕࡋࡓࠋ๛ᛶࡀ☜ಖ࡛ࡁࡿࡼ࠺࡟ࢺ࣮ࢳഃ࡟ 2 mm ࡎࡽࡋࡓ఩⨨࡟࣮ࣞ㻯㻸㻹ࢨࢆ↷ᑕࡋࡓࠋᅗ㸲࡟♧ࡍ㸦A㸧ࡣࡎࡽࡍ๓࡛ࠊ
㸦B㸧ࡣࡎࡽࡋࡓᚋ
ࡢ఩⨨࡛࠶ࡿࠋ࡞࠾ࠊ࣮ࣞࢨࡢ↔Ⅼ఩⨨ࡣ࣡࢖ࣖ⾲㠃࠿ࡽ 2 mm ୖ䠿࡛࠶ࡿࠋ࣮ࣞࢨ↷ᑕ⤖ᯝࢆᅗ 5 ࡟♧ࡍࠋ࣮ࣞࢨ↷ᑕึᮇ࡛ CLM ࡀษ᩿ࡉࢀࡿ(ᅗ㸳(a)㸧
ࠋࡑࡢᚋࠊCLM ࡣఙࡧࡿࡇ࡜࡞ࡃษ᩿
ࡉࢀ࡚࠸ࡿ(ᅗ 㸳 (b)ࠊ(c) )ࠋࡇࡢࡼ࠺࡟ࠊᏳᐃ࡞ษ᩿ࢆ⾜࠺ࡓࡵ࡟ࡣ࣮ࣞࢨ↷ᑕ఩⨨ࡀ㔜せ࡛࠶ࡿࠋ㻔㻮㻕࣮ࣞࢨ↷ᑕ࡟ࡼࡿ཯㊴ຊ࡜࣡࢖ࣖࡸ䡀

ᅗ 3 ࣮ࣞࢨ↷ᑕ᫬ࡢ࣡࢖ࣖඛ➃ࡢ⁐⼥㔠ᒓࡢᣲືࣃࣝࢫ࣮ࣞࢨ᮲௳: ࣆ࣮ࢡࣃ࣮࣡ 6kw,
࿘Ἴᩘ 10Hzࠊ⁐᥋᮲௳: I=245A, V=33.5V㻱㼍㼞㼘㼥㻌㼟㼠㼍㼓㼑㼟㻌㼛㼒㻌㼘㼍㼟㼑㼞㻌㼕㼞㼞㼍㼐㼕㼍㼠㼕㼛㼚㻔㻭㻕

CLM ࡢ๛ᛶࡢ኱ᑠ࡟ࡼࡾ CLM ࡀ᭤ࡀ㻌㻸㼍㼟㼑㼞㻌㼕㼞㼞㼍㼐㼕㼍㼠㼕㼛㼚㻸㼍㼟㼑㼞ࡿ࠿ࠊษ᩿ࡉࢀࡿ࠿ࡀỴࡲࡿ࡜⪃࠼ࡽࢀ㻮㼞㼛㼗㼑㼚㻌
㻯㻸㻹ࡿࠋࡇࢀ࡟ࡘ࠸࡚ࡣ௒ᚋࡢヲ⣽࡞᳨ウࡀ
ᚲせ࡛࠶ࡿࠋࡇࡢ᮲௳࡛⁐᥋ࢆ⾜ࡗࡓ᫬ࡢࣅ࣮ࢻእほࢆᅗ㸴࡟♧ࡍࠋ▷⤡ࡸ┠❧ࡗࡓࢫࣃࢵࢱࡶ࡞ࡃⰋዲ࡞⁐᥋ࣅ࣮ࢻᅗ 4 ࣮ࣞࢨ↷ᑕ఩⨨䠽㻮㼞㼛㼗㼑㼚㻌
㻯㻸㻹䠾㻸㼍㼟㼑㼞㻌㼕㼞㼞㼍㼐㼕㼍㼠㼕㼛㼚ࡀᚓࡽࢀࡓࠋ

㻭㼒㼠㼑㼞㻌㼠㼔㼑㻌㼑㼚㼐㻌㼛㼒㻌㼘㼍㼟㼑㼞㻌㼕㼞㼞㼍㼐㼕㼍㼠㼕㼛㼚ࡇࡢࡼ࠺࡟ࠊ࣮ࣞࢨࢆ౑⏝ࡍࡿࡇ࡜࡛Ᏻᐃ࡞ Ar-GMA ⁐᥋ࡀྍ⬟࡟࡞ࡗࡓࠋ࣮ࣞࢨࢆ౑⏝ࡋᑠ㟁ὶᇦࡢࢢࣟࣈ࣮ࣝ⛣⾜ࡢไᚚ㻮㼞㼛㼗㼑㼚㻌
㻯㻸㻹

ࡀࠊY. Huang ࡽ 2-4)࡟ࡼࡾヨࡳࡽࢀ࡚࠸ࡿࠋ㞳⬺๓ࡢ⁐⁲ࡢୖ㒊࡟࣮ࣞࢨࢆ↷ᑕࡋࠊ཯㊴ຊࢆ฼⏝ࡋ࡚⁐⁲⛣⾜ࡢไᚚࢆ⾜ࡗ࡚࠸ࡿࠋᮏ◊✲ࡣࡇࢀࡽࡼࡾࡶ኱㟁ὶ࡛ᙧᡂࡉࢀࡿ CLM ࢆ▷ࡃࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࣡࢖ࣖ࡟࣮ࣞࢨࢆ↷ᑕࡋࠊᏳᐃ࡞
Ar-GMA ⁐᥋࡜ࡍࡿࡓࡵࡢ࣮ࣞࢨ↷ᑕ᮲௳ࢆ᫂ࡽ࠿࡟ࡍࡿ
ࡇ࡜ࡀ࡛ࡁࡓࠋ䠿䡀

ᅗ 3 ࣮ࣞࢨ↷ᑕ᫬ࡢ࣡࢖ࣖඛ➃ࡢ⁐⼥㔠ᒓࡢᣲືࣃࣝࢫ࣮ࣞࢨ᮲௳: ࣆ࣮ࢡࣃ࣮࣡ 6kw,
࿘Ἴᩘ 10Hzࠊ⁐᥋᮲௳ I=255A, V=33.5Vཧ⪃ᩥ⊩1) T. Nakamura et. al.: STWJ, Vol. 13 (2008), No. 1, 25-32.
2) Y.Huang et. al.: Welding J., Vol. 89 (2010), No. 9, 181s-188s.
3) Y.Huang et. al.: Welding J., Vol. 91 (2012), No. 4, 140s-148s.
4) Y.Shao et. al.: Welding J., Vol. 93 (2014), No. 7, 205s-215s.

ᅗ㸴⁐᥋ࣅ࣮ࢻࡢእほ(ඹྠ◊✲ศ㔝:࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝)− 44 −

㠀ᅽ⦰ᛶ SPH ἲ࡟ࡼࡿ TIG ⁐᥋ࢩ࣑࣮ࣗࣞࢩࣙࣥ
ᮾ໭኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ࠊᶵᲔࢩࢫࢸ࣒ࢹࢨ࢖ࣥᕤᏛᑓᨷ ఀ⸨┿⃈ᮾ໭኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ࠊᶵᲔࢩࢫࢸ࣒ࢹࢨ࢖ࣥᕤᏛᑓᨷ⚟す♸⥴ㄽ࣭┠ⓗ ྛ✀⁐᥋㐣⛬࡟࠾࠸࡚ࠊ⁐⼥㔠ᒓࡢ⾲㠃ࡢኚᙧࡣసᴗᛶࡸ〇ရရ㉁࡟ከ኱࡞ᙳ㡪ࢆཬࡰࡍࠋࡋࡓࡀࡗ࡚ࡇ
ࡢᾮ㠃ኚᙧࡢຠᯝࢆィ⟬࡟ධࢀࡿࡇ࡜ࡀ⁐᥋ࡢᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜࠺㝿࡟㔜せ࡜࡞ࡿࡀࠊ㐣ཤ࡟ࡣィ⟬㈨※ࡢ㝈⏺ࡸᢏ⾡ⓗ࡞ไ⣙࠿ࡽᾮ㠃ኚᙧࢆ┬␎ࡋࡓࢩ࣑࣮ࣗࣞࢩࣙࣥࡀᩘከࡃ⾜ࢃࢀࡓࠋࡋ࠿ࡋ㏆ᖺࡣィ⟬ᶵࡸィ⟬ࢸࢡࢽࢵࢡࡢ㐍Ṍ࡟ྜࢃࡏ࡚ࠊᾮ㠃ኚᙧࡶ⪃៖ࡋࡓᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࡀ✚ᴟⓗ࡟ヨࡳࡽࢀ࡚ࡼ࠺࡟࡞ࡗ࡚ࡁࡓࠋ୍ᐃ㏿࡛᧯సࡉࢀࡿ TIG ⁐᥋ࢺ࣮ࢳୗࡢࠊᾮ㠃ኚᙧࡍࡿ⁐⼥ụࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓ Traidia ࡽ[1]ࡢ౛ࡀ࠶ࡿࠋࡋ࠿ࡋࠊᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆᐇ㝿ࡢసᴗ⌧ሙ࡛ࡢ⏕⏘ᛶྥୖࡸసᴗ⪅㣴ᡂ࡟ᙺ❧࡚ࡿࡓࡵ࡟ࡣࠊᐇ㝿ࡢ⁐᥋≧ἣࢆࢩ࣑࣮ࣗࣞࢱ࣮ୖ࡟ᵓ⠏࡛ࡁࡿࡼ࠺࡟ィ⟬ᡭἲࡢ㐺⏝⠊ᅖࢆࡉࡽ࡟
ᗈࡆ࡚࠸ࡃᚲせࡀ࠶ࡿࠋᑗ᮶ࡣ⁐ຍᮦࡢ᧯సࡢᙳ㡪ࡸ⛣⾜⁐⁲ࡢᣲືࠊẕᮦࡢ⁐ࡅྜ࠸࡜࠸ࡗࡓㅖࠎࡢせ⣲ࢆィ⟬࡟ධࢀࡓ」㞧࡞ࢩ࣑࣮ࣗࣞࢩࣙࣥࡀᐇ᪋ࡉࢀ࡚࠸ࡃࡶࡢ࡜ண᝿ࡉࢀࡿࠋࡓࡔࡋࠊᾮ㠃ࡢኚᙧࢆక࠺ィ⟬ࡣ౫↛࡜ࡋ࡚㞴ࡋࡃࠊィ⟬ࣉࣟࢢ࣒ࣛࡸィ⟬᮲௳タᐃࡢసᴗࢆ↹㞧࡟ࡋࠊࢩ࣑࣮ࣗࣞࢩࣙࣥࡀ◚⥢ࡋ࡚ࡋࡲ࠺ࡇ࡜ࡶከ࠸ࠋࡇࢀࡣࠊ㟼Ṇࡋࡓィ⟬᱁Ꮚୖ࡛⛣ື⾲㠃ࢆ㏣㊧ࡍࡿ㝿࡟」㞧࡞ᡭ㡰ࡀせồࡉࢀࡿୖ࡟ᩘ್
୙Ᏻᐃࡸ㉁㔞ࡢᾘኻࡀ⏕ࡌࡿࡇ࡜ࡀཎᅉ࡛࠶ࡿࠋࡑࡇ࡛ὀ┠ࡉࢀ࡚࠸ࡿࡢࡀ⢏Ꮚἲ࡛࠶ࡿࠋ ὶయࢆ⨨ࡁ᥮࠼ࡓィ⟬⢏Ꮚࡢືࡁࢆ㏣㊧ࡍࡿ⢏Ꮚἲ࡟ࡣࠊ㉁㔞ࡀཝᐦ࡟ಖᏑࡉࢀࡿࠊ⾲㠃ኚᙧࢆྵࡴၥ㢟ࢆࣟࣂࢫࢺ࡟ィ⟬࡛ࡁࡿࠊ࡜࠸ࡗࡓ≉ᛶࡀ࠶ࡾࠊ」㞧࡞ᾮ㠃ኚᙧࢆྵࡴ⁐᥋ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ᑐࡋ࡚ཎ⌮ୖࡣ㐺ࡋ࡚࠸ࡿࠋࡓࡔࡋ౑⏝౛ࡀᴟࡵ࡚ᑡ࡞ࡃࠊᐇ㝿࡟⁐᥋㐣⛬࡟㐺⏝ྍ⬟࡛࠶ࡿ࠿ࡣ᳨ドࡀᚅࡓࢀ࡚࠸ࡿ
≧ἣ࡛࠶ࡿࠋὶయィ⟬ࡢࡓࡵࡢ⢏Ꮚἲ࡟ࡣ SPH(Smoothed Particle hydrodynamics)ࠊMPS(Moving Particle
Semi-implicit)ࠊDPH(Dissipative Particle Hydrodynamics)࡜࠸ࡗࡓ࠸ࡃࡘ࠿ࡢࣂ࢚࣮ࣜࢩࣙࣥࡀ࠶ࡿࡀྛ✀ࢫ࣮࣒࢟ࡢ≉ᛶࡶ༑ศᢕᥱࡉࢀ࡚࠾ࡽࡎࠊ࠸ࡎࢀࡶ㛤Ⓨ㏵୰ࡢィ⟬ᡭἲ࡜࠸࠼ࡿࠋࡲࡓィ⟬⢭ᗘ࡟㛵ࡍࡿࣀ࢘ࣁ
࢘ࡀ୙㊊ࡋ࡚࠾ࡾࠊࣂࣜࢹ࣮ࢩࣙࣥࡢࡓࡵࡢ࣋ࣥࢳ࣐࣮ࢡࡸࠊィ⟬⢭ᗘ☜ಖࡢࡓࡵࡢ᭦࡞ࡿᨵⰋࡀᚲせ࡜ࡉࢀ࡚࠸ࡿࠋ ᮏ◊✲࡛ࡣ⁐᥋ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ᑐࡍࡿ⢏Ꮚἲࡢ㐺⏝ᛶࢆ᳨ドࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࠊィ⟬ᡭἲ࡟ࡣ௦⾲ⓗ࡞⢏Ꮚἲࡢࡦ࡜ࡘ࡛࠶ࡿ SPH ἲࢆࠊィ⟬ᑐ㇟࡜ࡋ࡚ྛ✀⁐᥋ࣉࣟࢭࢫࡢ୰࡛ࡶ≉࡟」㞧࡞࢔࣮ࢡ⁐᥋
㸦TIG⁐᥋㸧ࢆྲྀࡾୖࡆࡿࠋTIG ⁐᥋ࡢ⁐⼥ụ࡟ാࡃ㥑ືຊࡢຠᯝࢆ SPH ἲ࡟⤌ࡳ㎸ࡳࠊ⇕※ࡢ⛣ືࢆ㋃ࡲ࠼ࡓ⁐᥋ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆヨࡳࡿࠋ◊✲᪉ἲ ண

Ꮚ--ಟṇᏊἲ࡟ᇶ࡙ࡃᐦᗘᆒ୍໬㏿ᗘಟṇᡭἲࢆྲྀࡾධࢀࡓ㠀ᅽ⦰ᛶ SPH ἲ[2]ࢆ᥇⏝ࡍࡿࠋẕᮦࡢ⇕ὶືࡢࡳࢆィ⟬ᑐ㇟࡜ࡋࠊ㟁ሙࡸẼ┦࡟ࡘ࠸࡚ࡣゎ࠿ࡎቃ⏺᮲௳࡞࡝࡜ࡋ࡚୚࠼ࡿࠋඛ⾜◊✲࡛ᚓࡽࢀࡓẕᮦୖ᪉ࢆὶࢀࡿࢩ࣮ࣝࢻ࢞ࢫὶࡢ

ᗘศᕸ࡜㟁ὶᐦᗘศᕸ[3]ࢆࡶ࡜࡟ẕᮦୖ㠃ࢆຍ⇕ࡍࡿࠋ− 45 −

⤖ᯝ ᅗ㸯࡟ࢩ࣑࣮ࣗࣞࢩࣙࣥࡢ⤖ᯝࢆࡲ࡜ࡵࡓࠋ⁐ゎ෌จᅛࢆぢࡿࡓࡵ஧ࡘࡢẕᮦࢆ୪࡭࡚㝽㛫ࡢ୍㒊ࢆᇙࡵࡿ࡜࠸࠺᮲௳ࡢࡶ࡜࡛ィ⟬ࡋࡓࡶࡢ࡛࠶ࡿࠋᅛయ㒊ศ࡟ࡘ࠸࡚ࡣ୍ᗘ⼥ゎࡋࡓᚋจᅛࡋࡓ㒊ศ࡜ᮍ⼥ゎ㒊ศ࡜࡛Ⰽศࡅࡋ࡚࠸ࡿࠋᾮయ㒊ศࡣᗘ࡛Ⰽศࡅࡉࢀ࡚࠸ࡿࠋ㧗◲㯤ᮦ࡜ప◲㯤ᮦࡢ஧✀㢮ࡢᮦᩱ≀ᛶ࡛ࡑࢀࡒࢀィ⟬ࢆ⾜ࡗࡓࠋ஧ࡘࡢẕᮦࢆ㊬࠸࡛ᙧᡂࡉࢀࡓ⁐⼥ụࡀจᅛࡍࡿࡇ࡜࡛ẕᮦ㛫ࡢࢠࣕࢵࣉࡀᇙࡵࡽࢀࡿ
ᵝᏊࡀィ⟬࡟ࡼࡾ෌⌧࡛ࡁࡓࠋࡲࡓࠊᮦᩱ≀ᛶ࡟ࡼࡿ⁐ࡅ㎸ࡳ࡟㐪࠸ࡀ⌧ࢀࡓࠋ㧗◲㯤ᮦࡢ࡜ࡁ⁐ࡅ㎸ࡳࡀ῝ࡃ࡞ࡿⅬࡣඛ⾜◊✲࡜୍⮴ࡋ࡚࠸ࡿࠋ㧗◲㯤ᮦ  ప◲㯤ᮦ

ຍ⇕⤊஢

(a-1)

(b-1)

      

(a-2)
จᅛᚋ

(a-3) x = 45 mm

 

  (b-2)(b-3) x = 40

ᅗ 1) (a) 㧗◲㯤ᮦ࠾ࡼࡧ (b) ప◲㯤ᮦࡢ࢙࢘ࣝࢻᙧ≧㸬ୖẁ㸸ຍ⇕⤊஢᫬ t = 15.4 s ࡟࠾ࡅࡿಠ▔ᅗ㸬୰ẁ㸸จᅛ⤊஢ᚋࡢ㛗ᡭ᪉ྥ୰ኸ᩿㠃(y = 0)㸬ୗẁ㸸᭱῝㒊᩿㠃㸬㯮Ⰽࡢ⣽Წࡣ㝜ᴟࡢ࢖࣓࣮
ࢪ࡛࠶ࡾຍ⇕఩⨨ࢆ♧ࡍ㸬ῐ⅊Ⰽ࠾ࡼࡧ⃰⅊Ⰽࡣࡑࢀࡒࢀᅛయࡢ⼥ゎᚋจᅛࡋࡓ㒊ศ࡜ᮍ⼥ゎ㒊ศࠊࡑࡢ௚ࡢⰍࡣᾮయ㒊ศࡢ

ᗘࢆ♧ࡍ㸬


⤖ㄽ ண

Ꮚ--ಟṇᏊἲ࡟ࡶ࡜࡙ࡃ㠀ᅽ⦰ᛶ SPH ἲࢆ TIG ⁐᥋ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟㐺⏝ࡋࡓࠋ⇕※ࡢ⛣ືࡸẕᮦࡢ㝽㛫ࢆィ⟬࡟ධࢀࡓ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓ⤖ᯝࠊẕᮦࡀ୍య໬ࡍࡿᵝᏊࢆィ⟬࡛ࡁࡓࠋࡲࡓᮦᩱ≀ᛶ࡟ࡼࡿ⁐ࡅ㎸ࡳࡢኚ໬ࡀᤊ࠼ࡽࢀࡓࠋࡇࡢ✀ࡢ⁐᥋ィ⟬࡟ᑐࡋ⢏Ꮚἲࡢ᭷⏝ᛶࡀ♧ࡉࢀࡓࠋཧ⪃ᩥ⊩[1] A. Traidia, F. Roger, E. Guyot, J. Schroeder, and G. Lubineau㸪Int. J. Heat Mass Transfer, 55 (2012), 3946--3963㸬
[2] ఀ⸨┿⃈, ఀ⃝⢭୍㑻, ⚟す♸, ⱱ⏣ṇဢ, ᪥ᮏ⁐᥋Ꮫ఍ㄽᩥ㞟, 32--4 (2014), 213-222.
[3] M. Tanaka, H. Terasaki, M. Ushio and J. J. Lowke, Plasma Chem. Plasma P., 23-3 (2003), 585-606.
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 46 −

࢔࣑ࣝࢽ࣒࢘ᯈୖ࡛ࡢ஺ὶ TIG ⁐᥋࡟࠾ࡅࡿ㝜ᴟⅬᣲືࡢほᐹᐑᓮ኱Ꮫ ᩍ⫱ᩥ໬Ꮫ㒊⸨୸ ཌᚿ
1. ࡣࡌࡵ࡟
TIG ⁐᥋ࡢ⁐⼥ụෆ㒊࡛ࡢ࣓࢝ࢽࢬ࣒࡟ࡘ࠸࡚ࡣ㸪㝜ᴟⅬ⌧㇟ࡢ」㞧ࡉ࠿ࡽᮍࡔ㝜ᴟⅬᣲືࡸ㝖ཤ㐣⛬ࡢヲ⣽ⱝࡋࡃࡣ㸪ࡑࡢ㏿ᗘ➼ࡢලయⓗ࡞≀⌮㔞࡟㛵ࡋ࡚ࡣᮍゎ᫂࡞Ⅼࡀከࡃ㸪ᐇ㦂ⓗ࡟ゎ᫂ࡉࢀࡓ◊✲஦౛ࡣ࡞࠸ࠋ౛
࠼ࡤ㸪⏣௦ࡽࡣ஺ὶ TIG ࡢᵓ㐀ୖ㸪ẕᮦࡀ㝜ᴟ࡜࡞ࡿ EP㸦Electrode positive㸧ࡢ㝿࡟㸪ẕᮦ⾲㠃࡟㓟໬⭷ࡀ⏕ࡌࡿ㸦㝜ᴟⅬ࡟ࡼࡿࢡ࣮ࣜࢽࣥࢢస⏝㸧ࠋࡇࡢ㝿࡟㸪ẕᮦཬࡧ㓟໬⭷ࡣ㸪ప⼥Ⅼ≀㉁࡛࠶ࡿࡓࡵ㸪෭㝜ᴟ࡜࡞ࡾ㸪Ᏻᐃࡋࡓ㝜ᴟⅬࡀᙧᡂࡉࢀ࡞࠸ࠋࡇࢀࡽࡢ୺࡞⌮⏤࡜ࡋ࡚㸪㝜ᴟⅬ࡟ࡼࡿ㓟໬⭷ࡢ㝖ཤࣉࣟࢭࢫ࡟࠾ࡅࡿ⇕㍺㏦⌧㇟ࢆᢕᥱࡀᚲせࡔ࡜㏙࡭࡚࠾ࡾ㸪ᮦᩱ⾲㠃ࡢ㓟໬⭷㝖ཤࣉࣟࢭࢫࡢゎ᫂ࡣ㸪ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟㢗ࡿࡇ࡜ࡔࡅ
࡛࡞ࡃ㸪ᐇ㦂ⓗ࡞ᡭἲ࡟ࡼࡿゎ᫂ࡀ㔜せ࡛࠶ࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿ(1)ࠋ
ࡇࢀࡲ࡛ⴭ⪅ࡽࡣ㸪㧗࠸᫬㛫ศゎ⬟ࢆᣢࡘ㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࢆ⏝࠸࡚ࠊ࢔࣑ࣝࢽ࣒࢘ᯈࡢ஺ὶࢸ࢕ࢢ⁐᥋᫬ࡢ⁐⼥ụཬࡧ㓟໬⭷ୖࡢ㝜ᴟⅬᣲືࡸ࢔࣮ࢡⅬᘼ┤ᚋࡢ㝜ᴟⅬ࡟ࡼࡿ㓟໬⭷ࡢ㝖ཤ㐣⛬ (2)ࢆᐇ㦂࡟ࡼࡿほᐹࢆヨࡳࡓࠋࡑࡢ⤖ᯝ, ⁐⼥ụෆࡢ㝜ᴟⅬࡢᣲືࢆᫎീⓗ࡟ほᐹࡍࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ
ࡑࡇ࡛ᮏሗ࿌࡛ࡣ㸪࢔࣑ࣝࢽ࣒࢘ᯈୖ࡛ࢩ࣮ࣝࢻ࢞ࢫ࡟࣒࣊ࣜ࢘࢞ࢫࢆ⏝࠸ࡓ஺ὶ TIG ⁐᥋᫬࡟ࠊ㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟ࡼࡾ⁐⼥ụ㏆ഐࡢ᧜ᙳࢆ⾜ࡗࡓ⤖ᯝ㸪⁐⼥ụ୰ᚰ㒊࡟㝜ᴟⅬࡢᏑᅾࡋ࡞࠸ࡇ࡜ࢆ᫂ࡽ࠿࡜ࡋࡓࠋࡇࡢ
Ⅼ࡟ࡘ࠸࡚㸪㝜ᴟⅬࡢᏑᅾ᭷↓࡟ࡘ࠸࡚Ⓨ⏕࣓࢝ࢽࢬ࣒➼࡟ࡘ࠸࡚⪃ᐹࡋࡓࡢ࡛ሗ࿌ࡍࡿࠋ
2. ᐇ㦂⿦⨨ཬࡧ᪉ἲ

TIG Welding Power Supply

DAIHEN DA300Pᅗ 1 ࡣ㸪࢔࣑ࣝࢽ࣒࢘ᯈ࡟࠾ࡅࡿ஺ὶ TIG ⁐᥋᫬ࡢ⁐
Torch
Switch⼥ụཬࡧ㓟໬⭷ୖࡢ㝜ᴟⅬᣲືࡸ࢔࣮ࢡⅬᘼ┤ᚋࡢ㝜ᴟ
High Speed CameraⅬࡢほ ࡍࡿࡓࡵࡢᐇ㦂⿦⨨ᴫ␎ࢆ♧ࡍࠋྠᅗࡼࡾ㸪஺ SHIMADZU HPV-1
ὶ TIG ⁐᥋ᶵ㸦DAIHEN Co.; DA300P㸧ࢆ⏝࠸࡚㸪ࢩ
TIG Welding Torch࣮ࣝࢻ࢞ࢫ࡟ He ࢞ࢫ㸦25 L/min㸧ࢆᑟධࡋ㸪㟁ὶ್ 250A
ཬࡧ࿘Ἴᩘ 70Hz㸪EP ẚ(EP ᫬㛫/(EN ᫬㛫㸩EP ᫬㛫))Clamp meter(HIOKI 3285)
ࢆ 0.3 ࡜ࡋࡓࢱࢵࢳࢫࢱ࣮ࢺ࡟ࡼࡿ࢔࣑ࣝࢽ࣒࢘ᯈ㸦t24mm㸧࡛ࡢ஺ὶ TIG ⁐᥋ࢆ⾜ࡗࡓࠋᐇ㦂࡛ࡣ㸪2.0%ࣛࣥ
Welding Base Metal(t24 Pure Aluminium))ࢱࢼῧຍࢱࣥࢢࢫࢸࣥ㟁ᴟᲬ㸦ရ㉁㸸࢚ࣝࢱࣥ㸹ࢧ࢖ࢬ㸸Helium Gas
3.2150 㹫㹫/ᮾ㑥㔠ᒓओ㸧ࢆ౑⏝ࡋࠊ✺ฟ㛗 3.0 mmࠊ
TriggerUnitඛ➃ゅࡣ 60 rࠊ࢔࣮ࢡ㛗ࡣ 5.0 mm ࡜ࡋࡓࠋ࢔࣮ࢡⅬ(Nac N9619)
Digital Oscilloscope (Lecroy )ᘼ ᚋ ⣙ 1.0 ⛊ ᚋ ࡢ ⁐ ⼥ ụ ࢆ ㉸ 㧗 ㏿ ࣅ ࢹ ࢜ ࢝ ࣓ ࣛ(500,000fps㸹200ȣs 㛫㝸㸹Gain1㸹Expose1/2㸧࡟ࡼࡾ᧜ᙳࢆ⾜ࡗࡓࠋ
ᅗ 1 ᐇ㦂⿦⨨ᴫ␎
20

0

í

í

í

0

0.01

3. ᐇ㦂⤖ᯝཬࡧ⪃ᐹ
ᅗ 2 ࡣ㸪࢔࣑ࣝࢽ࣒࢘ᯈ࡟࠾ࡅࡿ஺ὶ TIG ⁐᥋᫬ࡢ࢔࣮ࢡⅬᘼ┤ᚋࡢ㟁ᅽཬࡧ㟁ὶἼᙧࢆ♧ࡍࠋྠᅗࡼࡾ㸪࢔
࣮ࢡⅬᘼ 1 ⛊ᚋ࡟እ㒊ࢺࣜ࢞࡟ࡼࡾ㸪㟁ὶ㟁ᅽἼᙧࢆࢹ࢕ࢪࢱࣝ࢜ࢩࣟࢫࢥ࣮ࣉࢹ࢕ࢪࢱࣝ࢜ࢩࣟࢫࢥ࣮ࣉ
(LeCroy 〇 Wave Surfer Xs ࢩ࣮ࣜࢬ 㟁ᅽ⠊ᅖ 90~264mVrms ࡢ᫬ࡣ࿘Ἴᩘ 47~63Hz 㟁ᅽ⠊ᅖ 90~132mVrms ࡢ᫬ࡣ࿘Ἴᩘ 380~420Hz)࡟࡚ィ ࡋࡓࠋྠᅗࡼࡾ㸪ほ ࡋࡓ㝿ࡢᴟᛶࡣ㸪EP ᫬ࡢほ Ἴᙧ࡛࠶ࡿࠋࡑࡢࡓࡵ㸪⁐⼥ụෆ࡟ࡣ☜ᐇ࡟㝜ᴟⅬࡢᣲືࡀ☜ㄆࡍࡿࡇ࡜ࡀ࡛ࡁࡿᮇ㛫࡛࠶ࡿࠋᅗ 3 ࡣ㸪ᅗ 2 ࡜ྠᵝ࡟㸪࢔࣑ࣝࢽ࣒࢘ᯈ࡟࠾ࡅࡿ஺ὶ TIG ⁐᥋᫬ࡢ࢔࣮ࢡⅬᘼ┤ᚋࡢ㟁ᅽཬࡧ㟁ὶἼᙧࢆ♧ࡍࠋྠᅗࡼࡾ㸪ほ ࡋࡓ㝿ࡢᴟᛶࡣ㸪EN㸦ẕᮦ㸦㸩㸧ᴟ㸪ࢺ࣮ࢳ㸦㸫㸧ᴟ㸧᫬ࡢほ Ἴᙧ࡛࠶ࡿࠋࡑࡢࡓࡵ㸪⁐⼥ụෆ࡟ࡣ㝜ᴟⅬࡢ☜ㄆࡀ࡛ࡁ࡞࠸ᮇ㛫࡛࠶ࡿࠋᅗ 4 ࡣ㸪㧗㏿ᗘ࣓࢝ࣛ࡟ࡼࡾ᧜ᙳࡋࡓ஺ὶ TIG ⁐᥋᫬ࡢ⁐⼥ụ㏆ഐࡢ⏬ീࢆ♧ࡍࠋྠᅗࡼࡾ㸪㝜ᴟⅬࡀ⁐⼥ụࡢ୰ᚰ㒊ࡼࡾእഃ࡛Ⓨ⏕ࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿࠋࢡ࣮ࣜࢽࣥࢢ㡿ᇦࡢእ⦕㒊࡟ከࡃࡢ㝜ᴟⅬࡀ⛣ືࡋ࡚࠸ࡿ
ࡇ࡜ࡶ☜ㄆ࡛ࡁࡿࠋ

− 47 −

ᅗ 2 ࢔࣮ࢡ㟁ᅽཬࡧ㟁ὶἼᙧ㸦EP ᫬㸧       ᅗ 3 ࢔࣮ࢡ㟁ᅽཬࡧ㟁ὶἼᙧ㸦EN ᫬㸧ᅗ 4 㧗㏿ᗘ࣓࢝ࣛ࡟ࡼࡾ᧜ᙳࡋࡓ⁐⼥ụ㏆ഐࡢ⏬ീ
4. ࡴࡍࡧ ᮏ◊✲࡛ࡣ㸪࢔࣑ࣝࢽ࣒࢘㗰ᮦୖ࡛㸪ࢩ࣮ࣝࢻ࢞ࢫ࡟࣒࣊ࣜ࢘࢞ࢫࢆ⏝࠸ࡓ஺ὶ TIG ⁐᥋᫬࡟࠾ࡅࡿ㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟ࡼࡿ⁐⼥ụ㏆ഐࡢ᧜ᙳࢆ⾜ࡗࡓࠋ௨ୗ࡟ᮏ◊✲࡛᫂ࡽ࠿࡟࡞ࡗࡓⅬ࡟ࡘ࠸࡚㏙࡭ࡿࠋ
(1) ᫬㛫ศゎ⬟ࡢ㧗࠸㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࡢ᧜ᙳ࡟ࡼࡾ㸪TIG ⁐᥋ࡢ㝿ࡢ⁐⼥ụෆࡢ㝜ᴟⅬࡢᣲືࢆᤊ࠼ࡿࡇ
࡜ࡀ࡛ࡁࡓࠋ
(2) EP ᴟᛶ࡛ࡢ⁐⼥ᆅෆࡢ㝜ᴟⅬࡢᣲືほ ࡟࠾࠸࡚ࡣ㝜ᴟⅬࢆ」ᩘᤊ࠼ࡿࡇ࡜ࡀ࡛ࡁࡓࠋ
(3) EN ᴟᛶ࡛ࡢ⁐⼥ᆅෆࡢ㝜ᴟⅬࡢᣲືほ ࡟࠾࠸࡚ࡣ㸪㝜ᴟⅬࡣ☜ㄆࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓࠋ
(4) ⁐⼥ᆅෆࡢ㝜ᴟⅬࡣ⁐⼥ụ୰ᚰ㒊࡟ࡣᏑᅾࡋ࡞࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
௒ᚋࡣ㸪࢔࣑ࣝࢽ࣒࢘ᯈ࡛ࡢ஺ὶ TIG ⁐᥋ࢆ⾜࠺㝿࡟㸪㓟໬⭷ࡢ㝖ཤࡸࢱࣥࢢࢫࢸࣥ㟁ᴟࡢಖㆤࡀồࡵࡽࢀࡿࠋ
ࡑࡢࡓࡵ㸪⁐᥋ᶵᵓࡢゎ᫂ࡸࡑࢀ࡟ᇶ࡙࠸ࡓ⁐᥋᮲௳ࡢ⢭ᐦ࡞ไᚚࢆ⾜࠺ࡓࡵ࡟㸪㝜ᴟⅬࡢᣲື࣓࢝ࢽࢬ࣒ࢆ TIG⁐᥋ᶵࡢ㟁ὶࡸ㟁ᅽἼᙧ࡜ࡢ㛵ಀ࠿ࡽ᫂ࡽ࠿࡟ࡋ࡚࠸ࡁࡓ࠸ࠋ
5. ཧ⪃ᩥ⊩(1) ⏣௦┿୍㸪⏣୰ Ꮫ㸸ࠕ㓟໬⭷ࡢࢡ࣮ࣜࢽࣥࢢຠᯝࢆ⪃៖ࡋࡓ࢔࣑ࣝࢽ࣒࢘ᯈࡢ㟼Ṇ஺ὶࢸ࢕ࢢ⁐᥋ࡢᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࠖ
㸪㟁ẼᏛ఍ㄽᩥㄅ B, Vol.132, No.5, pp.422-427 (2012)㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧

2㸭6− 48 −

⁐᥋࢔࣮ࢡ⌧㇟㸪⁐⼥ụ⌧㇟࠾ࡼࡧ⁐᥋㍺㏦⌧㇟ゎᯒ⁐ ᥋ ࢔ ࣮ ࢡ ࡢ ࢩ ࣮ࣝ ࢻ ࢞ ࢫ ⤌ ᡂ࡜ 㝜 ᴟ Ⅼ ᣲື ࡢ ゎ ᫂ ཬࡧ ᣲ ື ไ ᚚ ࡢ ࡓ ࡵࡢ ᇶ ♏ ⓗ ◊ ✲ࢧࣞࢪ࢜ᕤᴗ㧗➼ᑓ㛛Ꮫᰯᡣ㔝 ಇኵ㸯   ࡣࡌࡵ࡟࢔࣑ࣝࢽ࣒࢘ࡢ࢔࣮ࢡ⁐᥋ࢆ⾜࠺㝿࡟㸪㓟໬⭷ࡢ㝖ཤࡀ᏶඲࡟⾜ࢃࢀ࡚࠸࡞࠿ࡗࡓሙྜ㸪⁐⼥ụෆ࡬㓟໬⿕⭷ࡢᕳࡁ㎸ࡳ㸪⁐᥋๭ࢀ㸪ࣈ࣮࣮ࣟ࣍ࣝ࡜࠸ࡗࡓ⁐᥋୙Ⰻࡢཎᅉ࡜࡞ࡿᜍࢀࡀ࠶ࡿࠋ 㧗ᛶ⬟࣭㧗ရ㉁࡞⁐᥋⥅ᡭࢆᏳᐃࡋ࡚ᚓࡿࡓࡵ࡟ࡣ㸪⁐᥋୰ࡢ㓟໬⭷ࡢ㝖ཤࡀᚲせ୙ྍḞ࡛࠶ࡿࠋࡑࡢࡓࡵ࡟㸪஺ὶࢸ࢕ࢢ 7,* ⁐᥋ࡀ⏝࠸ࡽࢀ࡚࠸ࡿࠋࢱࣥࢢࢫࢸࣥ 㟁ᴟࡀ㝜ᴟ㸦㸫㸧࡛࠶ࡿ᫬࡟ࡣ㸪῝࠸⁐ࡅ㎸ࡳࢆᚓࡿࡇ࡜ࡀ࡛ࡁ㟁ᴟࡢᾘ⪖ࡶᑡ࡞࠸ࡀ㸪㝜ᴟⅬ࡟ࡼࡿ㓟໬⭷ࡢ㝖ཤస⏝ࡣാ࠿࡞࠸ࠋࢱࣥࢢࢫࢸࣥ㟁ᴟࡀ㝧ᴟ㸦㸩㸧࡛࠶ࡿ᫬࡟ࡣ㸪࢔࣮ࢡࡢ㞟୰ᛶࡀᝏࡃ࡞ࡾ㸪ࢱࣥࢢࢫࢸ
ࣥ㟁ᴟࡢ ᗘࡀୖ᪼ࡍࡿࠋࡑࡋ࡚㸪㟁ᴟᦆ⪖ࡀ⃭ࡋࡃ࡞ࡿࡀ㸪ࢡ࣮ࣜࢽࣥࢢస⏝ࡀാࡁ࢔࣑ࣝࢽ࢘
࣒࡞࡝ࡢᙉᅛ࡞㓟໬⭷ࢆ᭷ࡍࡿ㔠ᒓ࡟ᑐࡋ࡚ࡶ⁐᥋ࢆ⾜࠺ࡇ࡜ࡀ࡛ࡁࡿ >@ ࠋࡑࢀࡒࢀࡢᴟᛶࡢ㛗ᡤࢆά࠿ࡍࡓࡵ࡟㸪ࢱࣥࢢࢫࢸࣥ㟁ᴟ࡟஺ὶࢆ㏻㟁ࡋ࡚ᴟᛶࢆ࿘ᮇⓗ࡟㝧ᴟ㸦㸩㸧࡜㝜ᴟ㸦㸫㸧࡟஺␒ࡉࡏ࡚⁐᥋ࡍࡿ᪉ἲ࡛࠶ࡿࠋ KWWSZZZVDQSRSXEFRMS ࡇࢀࡲ࡛᪤Ꮡࡢ◊✲࡟࠾࠸࡚㸪ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡞࡝࡟ࡼࡾ⁐⼥ụࡢᙧᡂᶵᵓࢆゎ᫂ࡋࡼ࠺࡜ࡍࡿヨࡳࡀ┒ࢇ࡟⾜ࢃࢀ࡚ࡁࡓ >@>@ࠋ⁐᥋ᶵ㸪ࢱࣥࢢࢫࢸࣥ㟁ᴟࡢಖㆤࡀồࡵࡽࢀ㸪⁐᥋ᶵᵓࡢゎ᫂ࡸࡑࢀ࡟ᇶ࡙࠸ࡓ⁐᥋᮲௳ࡢ⢭ᐦ࡞ไᚚࡀᚲせ࡜࡞ࡿࠋ 㝜ᴟⅬࡢᣲືࡸ㓟໬⓶⭷ࡢ㝖ཤస⏝࣓࢝ࢽࢬ࣒࡟ࡘ࠸࡚ࡣ㸪㠀ᖖ࡟㧗࠸᫬㛫ศゎ⬟࡛ࡢほᐹࡀᚲせ࡛࠶ࡾ㸪◊✲ሗ࿌ࡣᑡ࡞࠸ࠋࡲࡓ㸪㓟໬⭷ࡢ㝖ཤ㐣⛬ࡸ㝜ᴟⅬࡢ⛣ື㏿ᗘ➼ࡣ୙᫂࡞Ⅼࡀከ࠸ࠋ
ࡑࡇ࡛㸪ᮏ◊✲ࢸ࣮࣐࡛ࡣ㸪㧗࠸᫬㛫ศゎ⬟ࢆᣢࡘ㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࢆ⏝࠸࡚㸪஺ὶࢸ࢕ࢢ(TIG)⁐᥋᫬ࡢධຊἼᙧ࡜㝜ᴟⅬࡢᣲື㸦⁐⼥ụᑐὶ㸧ࢆほᐹࡋ㸪ࢩ࣮ࣝࢻ࢞ࢫ⤌ᡂ࡜ࡢ㛵㐃࡟ࡘ࠸࡚ྛ෗┿࡟࠾ࡅࡿ㟁ὶ್ࢆグ㏙ࡋ㸪ゎ᫂ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ
 EN ࡜ࡣ㸪ẕᮦࡀṇᴟ㸦+㸧㸪ࢱࣥࢢࢫࢸࣥ㟁ᴟࢺ࣮ࢳࡀ㈇ᴟ㸦-㸧ࡢᮇ㛫ࡢࡇ࡜ࢆ࠸࠸㸪EP ࡜ࡣẕᮦࡀ㈇ᴟ㸦-㸧㸪ࢱࣥࢢࢫࢸࣥ㟁ᴟࢺ࣮ࢳࡀṇᴟ㸦+㸧ࡢᮇ㛫ࡢࡇ࡜ࢆゝ࠺ࠋEP ẚ⋡࡜ࡣ㸪஺ὶ㸯࿘ᮇ࡟࠾ࡅࡿ EP ᴟᛶࡢ㟁ᴟẚ⋡ࢆࣃ࣮ࢭࣥࢺ࡛⾲ࡋࡓࡶࡢ࡛㸪ḟᘧ࡛ᐃ⩏ࡍࡿࠋ

EP

I EP
u100[%]    㸦ཧ⪃ ࢲ࢖࣊ࣥ DA300P ྲྀᢅㄝ᫂᭩㸧I EN  I EP㸰 ◊✲᪉ἲᅗ㸯ࡣ㸪ᐇ㦂⿦⨨ࢆ♧ࡍࠋ ࢔࣑ࣝࢽ࣒࢘ᯈ࡟࠾ࡅࡿ஺ὶࢸ࢕ࢢ(TIG)⁐᥋᫬ࡢ⁐⼥ụཬࡧ㓟໬⭷ୖࡢ㝜
ᴟⅬᣲືࡸ࢔࣮ࢡⅬᘼ┤ᚋࡢ㝜ᴟⅬࡢほ ࡢࡓࡵ࡟㸪஺ὶ
TIG ⁐᥋ᶵ㸦DAIHEN Co.; DA300P㸧ࢆ⏝࠸㸪ࢩ࣮ࣝࢻ࢞ࢫ
࡜ࡋ࡚ He ࢞ࢫࢆ 25 L/min ࡛ᑟධࡋ㸪㟁ὶ್ 250A㸪࿘Ἴᩘ
70Hz㸪EP ẚࢆ 0.3 ࡜ࡋ࡚࢔࣑ࣝࢽ࣒࢘ᯈ࡛ࡢ஺ὶࢸ࢕ࢢ
(TIG)⁐᥋ࢆ⾜ࡗ࡚࠸ࡿࠋࡑࡢ㝿࡟㸪࢔࣮ࢡⅬᘼᚋ⣙ 1 ⛊ᚋࡢ⁐⼥ụࢆ㉸㧗㏿ࣅࢹ࣓࢜࢝ࣛ(500,000fps㸧࡟ࡼࡾ᧜ᙳ
ࢆ⾜ࡗࡓࠋᅗ㸰ࡣ㸪⁐⼥ụࢆ♧ࡍࠋ㉥Ⰽࡢ⥺࡛ᅖࢇࡔ㒊ศࡀ㸪࢔࣑ࣝࢽ࣒࢘ࡀ⁐ࡅ࡚⁐⼥ụ࡜࡞ࡗ࡚࠸ࡿࠋ
㟷Ⰽࡢ⥺࡛ᅖࢇࡔ㒊ศࡀ㸪㝜ᴟⅬࡢస⏝࡟ࡼࡾ㸪࢔ࣝᅗ 1 ᐇ㦂⿦⨨
Fig.1 Experimental setup࣑ࢽ࣒࢘⾲㠃ࡢ㓟໬⓶⭷ࡀ㝖ཤࡉࢀ࡚࠸ࡿࠋ㝜ᴟⅬࢆ㯤Ⰽࡢ୸࡛ᅖࢇࡔࠋ⥳Ⰽࡢ▮༳ࡣ⁐⼥ụ࡟ᫎࡾ㎸ࢇࡔ

− 49 −

ࢱࣥࢢࢫࢸࣥ㟁ᴟୖ࡟ⓑࡃぢ࠼࡚࠸ࡿࡢࡀ

ࢱࣥࢢࢫࢸࣥ 㟁ᴟࢱࣥࢢࢫࢸࣥ㟁ᴟࡢඛ➃㸪ୗ࡟ⓑࡃᫎࡗ࡚࠸ࡿࡢࡣ㸪⁐⼥ụ࡟཯ᑕࡋࡓ㟁ᴟ࡛࠶ࡿࠋ⁐⼥ụࡀἼᡴࡗ࡚࠸ࡿࡇ
࡜ࡀࢃ࠿ࡿࠋ࣓࢝ࣛഃࡢ᮲௳ࡣ㸪ẖ⛊ 50 ୓ࢥ࣐
㸦500,000fps㸧ࡢ࠺ࡕ 㸪100 ࢥ࣐ࢆ㐃⥆᧜ᙳࡋ㸪グ 㘓ࡋࡓࠋ ⁐ ⼥ ụࢺࣜ࢞ᅇ㊰ࡣ౑⏝࡛ࡁ࡞࠿ࡗࡓⅭ㸪 EP ࡜࡞ࡿ᫬㛫࡟അ↛ᙜࡓࡗࡓ᫬ࡢࡳ㸪㝜ᴟⅬࢆほᐹ࡛ࡁࡓࠋ EP ẚࡀ 0.3 ࡛࠶⁐⼥ụ࡟ᫎࡗ࡚࠸ࡿ㟁ᴟࡿ࠿ࡽ㸪10 ᅇ᧜ࡗࡓ࡜ࡁ  ᅇࡄࡽ࠸ᙜࡓࡿࠋ

ᅗ㸰 ⁐⼥ụ
Fig.2 molten poolᅗ㸱 250A ᫬ ⁐⼥ụࡢほᐹ≧ἣFig.3 When 250A the observation situation molten pool㸱. ⤖ ㄽ஺ὶࢸ࢕ࢢ(TIG)࡟࠾ࡅࡿ⁐⼥ụᣲືࢆほᐹࡍࡿ࡜㸪ᅗ㸱ࡢࡼ࠺࡟㟁ᴟ┤ୗࡢ⁐⼥㔠ᒓࡀኚᙧࡋጞࡵ㸪ࣆ࣮ࢡ㟁ὶ㏻㟁୰㸪⁐⼥ụࡣᙉ࠸࢔࣮ࢡຊ࡟ࡼࡗ࡚῝ࡃࡃࡰࢇ࡛࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋࣆ࣮ࢡ㟁ὶ㏻㟁⤊஢࡜࡜ࡶ࡟⁐⼥ụࡢࡃࡰࡳࡣ࿘ᅖࡢ⁐⼥㔠ᒓ࡟ࡼࡗ࡚ᇙࡵࡽࢀ㸪⁐⼥ụ㔠ᒓࡣ✀ࠎࡢ⾲㠃ᙧ≧ࢆ࡜ࡾ࡞ࡀࡽ⁐⼥ụෆ࡛ࡺࢀື࠸࡚࠸ࡿ>@ࠋ⁐⼥ụࡣ㸪ࡑࡢ኱ࡁࡉ࣭ᙧ≧࡞ࡽࡧ࡟⾲㠃ᙇຊࡸ⢓ᛶ࡞࡝⁐⼥㔠ᒓࡢ≀ᛶ್࡟ࡼࡗ࡚
࡯ࡰᐃࡲࡿᅛ᭷᣺ືᩘ࡜࡞ࡾ㸪࡯ࡰ 10㹼80Hz ࡢ⠊ᅖ࡟࠶ࡿ>@ࠋࡲࡓ㸪ࢡ࣮ࣜࢽࣥࢢ㡿ᇦࡢእ⦕㒊࡟ከࡃࡢ㝜ᴟⅬࡀ⛣ືࡋ࡚࠸ࡿࡇ࡜ࡶ☜ㄆ࡛ࡁࡿࠋ㏻ᖖ㸪㝜ᴟⅬࡣ㸪⁐⼥ụ୰ᚰ㒊࡟Ꮡᅾࡍࡿࡇ࡜ࡀ᳨ウࡉࢀ࡚ࡁࡓࠋ
ࢩ࣮ࣝࢻ࢞ࢫࡢᙳ㡪࡟ࡼࡾ㸪ࢡ࣮ࣜࢽࣥࢢ㡿ᇦࡢእ⦕㒊࡬࢞ࢫὶ࡜࡜ࡶ࡟⛣ືࡍࡿࡇ࡜ࡀ᳨ウࡉࢀࡿࡀ㸪࣐ࣛࣥࢦࢽຠᯝ࡟ࡼࡾ㸪㝜ᴟⅬࡀ୰ᚰ㒊࡬Ꮡᅾࡍࡿࡇ࡜ࡶ࠾࠿ࡋࡃ࡞࠸ࡶࡢ࡜௬ᐃ࡛ࡁࡿࠋ㧗㏿ᗘ࣓࢝ࣛ࡟ࡼ
ࡾ᧜ᙳࡋࡓ⏬ീ࠿ࡽ㸪㝜ᴟⅬࡣ⁐⼥ụ୰ᚰ㒊࡟ࡣᏑᅾࡋ࡞࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
㸲. ࡇࢀ࠿ࡽࡢㄢ㢟(1) ᐇ㦂᮲௳ࡣ㸪኱Ẽᅽ࢔࣮ࢡࡢ㝜ᴟⅬࡢᣲື࡛࠶ࡾ㸪⏬ീ㸪఩⨨᝟ሗ㸪ಶᩘ㸪㏿ᗘ࡞࡝㸪70Hz ࡍ࡭࡚࡟ࢃࡓࡾグࡋ㸪᫬㛫ࡈ࡜ࡢ㟁ὶ್࡜ඹ࡟㆟ㄽࡋ㸪 ᐃࢱ࢖࣑ࣥࢢࢆྜࢃࡏࡿᢏ⾡ࡀᚲせ࡛࠶ࡿࠋ(2) ࡞ࡐ㸪㝜ᴟⅬࡣศ⿣ࡋ」ᩘᏑᅾࡍࡿࡢ࠿ࠋࡲࡓ㸪㟁ὶࡢୖ᪼࡟ࡼࡾ㸪㝜ᴟⅬࡣ㸯ࡘ࡟࡞ࡿࡢ࠿ࡢゎ᫂ࡀ῭ࢇ࡛࠸࡞࠸ࠋࡇࡢࡇ࡜ࢆ㚷ࡳ㸪㆟ㄽࢆᒎ㛤ࡋࡓ࠸ࠋ㸳. ཧ⪃ᩥ⊩[1] Y. Tsu jimura and M. Tanaka: Quarterly J. Japa n Welding Soc., 30 (4), pp.281 -287 (2012) ࠙ in Ja pa neseࠚ[2] S. Tashiro a nd M. Tanaka : IEEJ. Trans. on Power a nd Energy, 132(5), pp.422 -427 (2012) ࠙ in Ja pa neseࠚ[3] S.Lu, H. Fu jii, H. Su giya ma a nd M. Tanaka㸸 Ma teria ls Trans., 43(11), pp.2926 -2931(2002).
[4] ᪥ ᮏ ⁐ ᥋ ༠ ఍ ⦅ :᪂ ∧ ࢸ ࢕ ࢢ ⁐ ᥋ ἲ ࡢ ᇶ ♏ ࡜ ᐇ 㝿 pp.41 -42 (2012)㸪 ⏘ ሗ ฟ ∧㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ࣉࣟࢭࢫᏛศ㔝㸧− 50 −

⁐᥋࢔࣮ࢡ⌧㇟㸪⁐⼥ụ⌧㇟࠾ࡼࡧ⁐᥋㍺㏦⌧㇟ゎᯒ ⁐⼥ụ☢Ẽไᚚ࢔࣮ࢡ⁐᥋ࡢ࢔࣮ࢡ⌧㇟࡜⁐⼥ụࡢὶືゎᯒᡤᒓ㸸⌰⌫኱Ꮫ ᕤᏛ㒊Ặྡ㸸ᯇ⏣୍᪼ ┠ⓗ
࢔࣮ࢡ⁐᥋ࡣ᪋ᕤࡢ฼౽ᛶ➼࠿ࡽ㸪ᕤᴗⓗ࡟᭱ࡶPower source for wireᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿ⁐᥋ἲ࡛࠶ࡿࡀ㸪ᶓྥ࣭ୖྥ࠾
ࡼࡧ❧ྥࡢ㞴ጼໃ⁐᥋࡛ࡣ㸪㔜ຊ࡟ࡼࡾ⁐⼥㔠ᒓࡀ

TIG torchYZᆶࢀୗࡀࡾ㸪࢔ࣥࢲ࣮࢝ࢵࢺࡸ࣮࢜ࣂ࣮ࣛࢵࣉ➼ࡢ

Power source for arc

Base metal
Filler wireᙧ≧Ḟ㝗ࡀⓎ⏕ࡋ᫆ࡃ㸪⥅ᡭရ㉁ࡸ⁐᥋⬟⋡ࡢపୗࡢཎᅉ࡜࡞ࡗ࡚࠸ࡿ㸬ᡃࠎࡣࡇࢀࡲ࡛࡟⁐⼥ụෆࢆ

Molten poolX
Coilὶࢀࡿ㟁ὶ࡟☢ሙࢆ௜ຍࡋ㸪⁐⼥ụෆ࡟཯㔜ຊ᪉ྥࡢ㟁☢ຊࢆⓎ⏕ࡉࡏ㸪⁐⼥㔠ᒓࡢὶࢀ࡜ࣅ࣮ࢻᙧ≧ࢆไᚚࡍࡿࠕ⁐⼥ụ☢Ẽไᚚ⁐᥋ἲ㸸ECMP ἲࠖࢆᥦ᱌ࡋ㸪᪤࡟ LNG ࢱࣥࢡࡢᶓྥ㸪❧ྥጼໃࡢཌᯈ

Power source for coil᥋࡟࠾࠸࡚ࡶ⁐᥋⥺ࢆࡲࡓࡄ☢ᴟ࡟ࡼࡾ㸪ࣅ࣮ࢻࡢFig.1 Arrangements of welding apparatus
DCEN in flat positionᆶࢀⴠࡕ㜵Ṇࡉࢀ㸪ẚ㍑ⓗⰋዲ࡞ࣅ࣮ࢻᙧ≧ࡀᚓࡽ

ཎⅬ࡜ࡋ㸪⁐᥋⥺᪉ྥࢆ Y ㍈㸪ẕᮦ࡜ᖹ⾜࡛⁐᥋⥺ࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽୖྥ㸪ୗྥጼໃ⁐᥋࡛ࡣ㸪࡟ᆶ┤࡞᪉ྥࢆ X ㍈㸪ẕᮦ⾲㠃࡟ᆶ┤࡞᪉ྥࢆ Z ㍈

ᶓྥ㸪❧ྥጼໃ࡟ ECMP ἲࢆ㐺⏝ࡋࡓሙྜ࡜␗࡞

࡜ࡋࡓ㸬TIG ⁐᥋㟁※࡜ῧຍ࣡࢖ࣖຍ⇕㟁※ࡣࡑࢀࡾ㸪࢔࣮ࢡࡀ⁐᥋᪉ྥ࡟ᑐࡋ࡚๓᪉ࡲࡓࡣᚋ᪉࡟೫

ࡒࢀ⊂❧ࡋ࡚タ⨨ࡋ㸪TIG ࢺ࣮ࢳࢆ࣐࢖ࢼࢫᴟ㸪ῧྥࡍࡿࡇ࡜࡟ࡼࡿ㸪ẕᮦ࡬ࡢධ⇕ࡢపୗࡸୖྥጼໃ

ຍ࣡࢖ࣖࢆࣉࣛࢫᴟ࡜ࡋࡓ㸬ヨ㦂∦㸦ẕᮦ㸧ࡣᯈཌ⁐࡛ࡣ㸪⁐⼥ࡋࡓ㔠ᒓࡀ┤᥋࢔࣮ࢡࢆ㜼ᐖࡍࡿ⌧㇟

3 ੈࡢ࣮࢜ࢫࢸࢼ࢖ࢺ⣔ࢫࢸࣥࣞࢫ㗰 SUS304 ࢆ౑࡞࡝ࡀ㉳ࡇࡿࡓࡵ㸪⁐᥋ࡀ୙Ᏻᐃ࡜࡞ࡾ㸪ࡑࡢ㐺⏝⏝ࡋ㸪࣡࢖ࣖࡣ 1.2mm ᚄࡢ࣮࢜ࢫࢸࢼ࢖ࢺ⣔ࢫࢸ⠊ᅖࡀ㝈ᐃࡉࢀࡿ㸬☢ሙࢆ௜ຍࡋࡓሙྜ㸪Ⓨ⏕ࡋࡓࣥࣞࢫ㗰 YS347 ࢆ౑⏝ࡋࡓ㸬⁐⼥ụࡢᵝᏊࡣ ND㟁☢ຊ࡟ࡼࡾ⁐⼥ụ⾲㠃ࡀ┒ࡾୖࡀࡿࡓࡵ㸪㧗 ࡢࣇ࢕ࣝࢱ࠾ࡼࡧࣂࣥࢻࣃࢫࣇ࢕ࣝࢱ㸦810nm㸧㢮ࢆ⁐⼥㔠ᒓࡢὶືࡀ኱ࡁࡃኚ໬ࡍࡿ㸬࢔࣮ࢡࡢ೫ྥ࡜

⿦╔ࡋࡓ㧗㏿ᗘ࣓࡛࢝ࣛほᐹࡋࡓ㸬ࡲࡓග※ࡣἼ㛗ඹ࡟ࡇࢀࡽࡀ⁐᥋ࢆ୙Ᏻᐃ࡟ࡍࡿ୺せᅉࡔ࡜⪃࠼

810nm㸪᭱኱ฟຊࡀ 500W ࡢࣃࣝࢫ࣮ࣞࢨࢆ౑⏝ࡋࡽࢀࡿࡀ㸪ࡑࡢ☢ሙࡀ⁐⼥㔠ᒓࡢὶື࡟୚࠼ࡿᙳ㡪ࡓ㸬ࡲࡓ⁐⼥ụࡢヲ⣽࡞ὶືࢆᐃ㔞ⓗ࡟ホ౯ࡍࡿࡓࡣ୙᫂࡞Ⅼࡀከ࠸㸬ࡑࡢࡓࡵ㸪᭦࡞ࡿ ECMP ἲࡢࡵ㸪⁐⼥㔠ᒓ୰࡟ࢺ࣮ࣞࢧ⢏Ꮚࢆΰධࡉࡏ㸪ᚓࡽࢀ㐺⏝ᣑ኱ࡢࡓࡵ࡟ࡣ㸪࢔࣮ࢡࡢᣲືࡸ⁐⼥ụࡢὶືࡓ⏬ീ࡟ PIV ฎ⌮ࢆ⾜࡞ࡗࡓ㸬ࢺ࣮ࣞࢧࡣ┤ᚄኚ໬ࡢ࣓࢝ࢽࢬ࣒ࢆヲ⣽࡟ㄪ࡭ࡿᚲせࡀ࠶ࡿ㸬ᡃࠎ

0.5~0.05mm ࡢࢪࣝࢥࢽ࢔⢏Ꮚ(⼥Ⅼ㸸2973K)ࢆ⏝ࡣࡇࢀࡲ࡛࡟ ECMP ⁐᥋᫬ࡢ⁐⼥ụὶື࣓࢝ࢽࢬ

࠸ࡓ㸬᧜ᙳ㏿ᗘࡣ 1,000fps ࡛࠶ࡿ㸬⁐᥋㟁ὶ IA 160A,

࣒ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟㸪☢ሙࡸ࣡࢖ࣖࢆ௜ຍࡋࡓ

⁐᥋㟁ᅽ (=13V࣡࢖ࣖຍ⇕㟁ὶ ,W=50A ࠾ࡼࡧ☢

࡜ࡁࡢ⁐⼥ụࡢὶືࢆヲ⣽࡟ほᐹࡋࡓࡀ㸪ᖹᡂ 26 ᖺ᮰ᐦᗘ እ㒊☢ሙ %; 4.9mT ࡜ࡋࡓ㸬࡞࠾ᮏ✏࡛ࡣほᗘ◊✲࡛ࡣ୺࡟⁐⼥ụὶࢀࡢᐃ㔞ⓗ ᐃࢆ⾜ࡗࡓ㸬ࡀẚ㍑ⓗᐜ᫆࡞ୗྥጼໃ⁐᥋ࡢ⤖ᯝࢆሗ࿌ࡍࡿ㸬ከᒙ⁐᥋➼࡟ᐇ⏝໬ࡉࢀ࡚࠸ࡿ㸬ୖྥ㸪ୗྥጼໃ⁐ ᐇ㦂⿦⨨࣭ᐇ㦂᪉ἲ࠾ࡼࡧᐇ㦂᮲௳
ECMP ἲࢆୗྥጼໃ࣍ࢵࢺ࣡࢖ࣖ TIG ⁐᥋࡟㐺⏝ࡋࡓሙྜࡢᐇ㦂⿦⨨ᵓᡂᅗࢆᅗ 1 ࡟♧ࡍ㸬ᐇ㦂⿦⨨ࡣ኱ูࡋ࡚ TIG ⁐᥋ࢺ࣮ࢳ㸪ῧຍ࣡࢖ࣖ࠾ࡼࡧ☢໬ࢥ࢖ࣝࡼࡾᵓᡂࡉࢀ࡚࠸ࡿ㸬㟁ᴟ┤ୗࡢẕᮦ⾲㠃ࢆ ᐇ㦂⤖ᯝ஦๓ᐇ㦂ࡢ⤖ᯝࡼࡾ㸪⁐⼥ụ࡟ΰධࡉࡏࡿࢺ࣮ࣞ
ࢧ⢏Ꮚ࡟ࡣ㸪⁐⼥ụ㏆ഐࡢ࢔࣮ࢡὶࡢᙳ㡪ࡀᑠࡉࡃࠊ
ὶࢀࡢ㏣ᚑᛶࡀⰋ࠸┤ᚄ 0.05mm ࡢࢪࣝࢥࢽ࢔⢏Ꮚࡢ౑⏝ࡋࡓ㸬− 51 −

Absolute flow velocity | V | [m/s][cm/s]

0.1 m/s

2.0 mmWelding direction

0.14

0.10

ECMP

0.08
0.06

0.04

TIG

0.02
0.00

(a) TIG welding㻌

-4

-2

0
X [mm]

24(a) X direction (Y=-15mm)㻌

[cm/s]

Absolute flow velocity | V | [m/s]

0.1 m/s

2.0 mm

ECMP welding
TIG welding

0.12

Welding direction

0.14
0.12

ECMP welding
TIG welding

0.10

0.08

Wire insertion
point in ECMP

ECMP

0.06

Electric pole

0.04

TIG

0.02
0.00
-25

-20

-15

-10

-5

0

Y [mm](b) ECMP welding㻌Fig.2 Velocity distribution on the surface of the molten
pool (Tracer particle:㻌Zirconia, ȭ0.05mm㸪 ) 㻌(b) Y direction (X=0mm)㻌
Fig.3 Velocity distribution
di ib i on theh X axis
i and
d the
h Y axis㻌ᅗ 2 (a)㸪(b)࡟ TIG ࠾ࡼࡧ ECMP ⁐᥋࡟ࢺ࣮ࣞ

㏆ഐ࡟ྥ࠿࠺࡟ᚑࡗ࡚⁥ࡽ࠿࡟ῶᑡࡍࡿ㸬ࡑࡢᴟ኱ࢧ⢏Ꮚࢆΰධࡉࡏ⁐⼥ụ⾲㠃ࡢὶࢀࡢᵝᏊࢆྍど್ࡢ఩⨨ࡣ㸪⁐⼥ụ୰ኸ㒊࡟Ⓨ⏕ࡍࡿ 2 ࡘࡢ ࡟ࡼ໬ࡋࡓ⏬ീ࡟ PIV ฎ⌮ࡋࡓ⤖ᯝࢆࡑࢀࡒࢀ♧ࡍ㸬ᅗࡾㄏᘬࡉࢀ࡚⏕ࡌࡿ⁐⼥ụ୰ኸ㒊ࡢ⁐᥋᪉ྥ࡬ࡢ

୰ࡢⓑ࠸⥺ࡣὶ⥺㸪▮༳ࡣ㏿ᗘ࣋ࢡࢺࣝࢆ♧ࡍ㸬࡞ὶࢀ࡟ᑐᛂࡍࡿ㸬ECMP ⁐᥋ࡢሙྜ㸪୰ኸ௜㏆࡟ 1࠾୧ᅗඹ࡟ 1.5 ⛊㛫ࡢᖹᆒὶ㏿ศᕸ࡛࠶ࡿ㸬TIG ⁐ࡘ㸪จᅛ⥺㏆ഐ࡟ 2 ࡘࡢᴟ኱್ࢆᣢࡘ㸬୰ኸ㒊ࡢᴟ᥋࡟࠾࠸࡚⁐⼥ụ୰ኸ㒊࡟┤ᚄ 2.0mm ⛬ᗘࡢࢫࢣ኱್ࡢ఩⨨ࡣ㸪ࡣࡃ㞳 ࠾ࡼࡧ࣡࢖ࣖᚋ᪉ࡢᚋὶ

࣮ࣝࡢ 2 ࡘࡢ ࡀぢࡽࢀࡿ㸬ࡇࢀࡽࡢ ࡣจᅛ⥺࡟࡟ࡼࡾㄏᘬࡉࢀ࡚⏕ࡌࡿ⁐᥋᪉ྥ࡬ࡢὶࢀ࡜ᑐᛂ

ἢ࠺⁐⼥ụᚋ᪉࡬ࡢὶࢀࡀ⁐⼥ụ୰ኸ௜㏆࡛ࡣࡃࡍࡿ㸬จᅛ⥺㏆ഐࡢ 2 ࡘࡢᴟ኱್ࡣจᅛ⥺࡟ἢ࠺ᚋ㞳ࡍࡿࡇ࡜࡟ࡼࡾᙧᡂࡉࢀࡿࡣࡃ㞳 ࡛࠶ࡿ㸬ࡲࡓ᪉࡬ࡢὶࢀ࡟ᑐᛂࡍࡿ㸬ECMP ⁐᥋ࡢሙྜ㸪⁐⼥ụ

ࡑࡢ 2 ࡘࡢ ࡟ㄏᘬࡉࢀ⁐⼥ụ୰ኸ㒊࡟ 0.04m/s ⛬୰ኸ㒊ࡀᣢࡕୖࡀࡾ㸪⁐⼥㔠ᒓࡀจᅛ⥺࡟ἢࡗ࡚ໃ

ᗘࡢ⁐᥋᪉ྥ࡬ࡢὶࢀࡀぢࡽࢀࡿ㸬⁐⼥ụᚋ➃㒊㏆࠸ࡼࡃᚋ᪉࡬ὶฟࡍࡿࡓࡵ㸪TIG ⁐᥋࡜ẚ㍑ࡋ࡚จ

ഐࡣ࡯ࡰ೵⁫≧ែ࡛࠶ࡿ㸬ECMP ⁐᥋ࡢሙྜ㸪࢔࣮ᅛ⥺㏆ഐ࡛㧗࠸್ࢆ♧ࡍ㸬ᅗ 3(b)㸪TIG ⁐᥋ࡢሙྜࢡᅽ࡟ࡼࡿᚋ᪉࡬ࡢ⁐⼥㔠ᒓࡢὶࢀࡣ㸪⁐⼥ụ୰ኸࡢ㏿ᗘศᕸࡣ࡯ࡰ 2 ࡘࡢࡣࡃ㞳 ࡀⓎ⏕ࡍࡿ Y=-㒊ࡢ⁐⼥ụࡀᣢࡕୖࡀࡿࡇ࡜࡟ࡼࡾ㐽ࡽࢀࡿࡀ㸪㐽

20~-10mm ࡛ᴟ኱್ࢆᣢࡘ㸬
ECMP ⁐᥋ࡢሙྜࡣ㸪ࡽࢀࡓ⁐⼥㔠ᒓࡀ㸪จᅛࣛ࢖ࣥἢ࠸࡟㞟୰ࡋ㸪ᚋ᪉࣡࢖ࣖᤄධⅬ௨㝆࡛ᛴ⃭࡟኱ࡁࡃ࡞ࡿ㸬ࡇࢀࡣ࣡࢖

࡬ໃ࠸ࡼࡃὶฟࡍࡿ㸬ࡑࡢᖹᆒὶ㏿ࡣ᭱኱ 0.20m/s

ࣖᚋ᪉ࡢ ࡢᙳ㡪ࡔ࡜⪃࠼ࡽࢀࡿ㸬࡟㐩ࡍࡿ㸬ࡲࡓ࣡࢖ࣖᚋ᪉࡟ 8.0~9.0mm ᚄࡢ኱ࡁ࡞

4. ⤖ㄽࢫࢣ࣮ࣝࡢ ࡀ 2 ࡘぢࡽࢀ㸪ࡑࡢ ࡢὶ⥺ࡢ㛫㝸ࡀᮏ✏࡛ࡣ ECMP ⁐᥋᫬ࡢ⁐⼥ụ⾲㠃ࡢὶືࢆ⊃࠸ࡇ࡜ࡼࡾ㸪⁐⼥㔠ᒓࡀ⃭ࡋࡃὶືࡋ࡚࠸ࡿࡇ࡜

PIV ᡭἲࢆ⏝࠸࡚ᐃ㔞ⓗ࡟ ᐃࡋ㸪୺࡟☢ሙࡀ⁐⼥ࡀࢃ࠿ࡿ㸬ụࡢὶື࡟୚࠼ࡿᙳ㡪ࢆㄪ࡭ࡓ㸬ࡑࡢ⤖ᯝ㸪☢ሙࢆ⃭ࡋ࠸ὶືࡀぢࡽࢀࡿ࣡࢖ࣖᤄධⅬᚋ᪉㸦 Y=-ຍ࠼ࡓሙྜࡢ⁐⼥ụࡢ⃭ࡋ࠸ὶືࡢᵝᏊࡀ᫂ࡽ࠿

15mm㸧ࡢ X ㍈ୖ࠾ࡼࡧ⁐᥋⥺ୖ㸦Y ㍈ୖ㸧ࡢᖹᆒ࡟࡞ࡗࡓ㸬

ὶ㏿ศᕸࢆᅗ 3(a)㸪(b)࡟ࡑࢀࡒࢀ♧ࡍ㸬⦪㍈ࡣ⁐⼥ ཧ⪃ᩥ⊩(1) ⏣୰㸪⏣௦㸸࢔࣮ࢡ⁐᥋࡟࠾ࡅࡿྍど໬ᢏ⾡ࡢࢫࢸ࣮ࢺ࣭࢜ࣈ࣭ࢪ࣭࢔࣮ࢺ㸪⁐᥋Ꮫ఍ㄅ
82(2)㸪(2013)㸪15-20㸬㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧ụࡢᖹᆒὶ㏿ࡢ኱ࡁࡉ|V|࡛࠶ࡿ㸬ᅗ(a)ࡢ TIG ⁐᥋ࡢሙྜ㸪ECMP ⁐᥋ࡢሙྜ࡜ẚ㍑ࡋ࡚ᖹᆒὶ㏿ࡣᴟ➃࡟ᑠࡉࡃ㸪⁐⼥ụ୰ኸ௜㏆࡛ᴟ኱್ࢆᣢࡕ㸪จᅛ⥺− 52 −

⁐᥋࢔࣮ࢡ⌧㇟㸪⁐⼥ụ⌧㇟࠾ࡼࡧ⁐᥋㍺㏦⌧㇟ゎᯒ㸦஺ὶ 7,* ⁐᥋࡟࠾ࡅࡿ࢔࣮ࢡࡢᣲືゎ᫂࡜ࡑࡢไᚚ࡟㛵ࡍࡿᇶ♏◊✲㸧ᐑᓮ኱ᏛᕤᏛ㒊 Ᏻ஭ ㈼ኴ㑻㸬ࡣࡌࡵ࡟
஺ὶ TIG ⁐᥋࡟࠾ࡅࡿ㝜ᴟⅬࡢᣲືࡸ㓟໬⭷ࡢ㝖ཤ㐣⛬ࢆᐇ㦂࡟ࡼࡾほᐹࡍࡿ࡟ࡣ㸪㠀ᖖ࡟㧗࠸᫬㛫ศゎ⬟ࢆᣢࡘࣅࢹ࣓࢜࢝ࣛࢆഛ࠼ࡓィࢩࢫࢸ࣒ࡀᚲせ࡛࠶ࡿ㸬ࡲࡓ㸪ࢱࣥࢢࢫࢸࣥ㟁ᴟࡀࣉࣛࢫ㸦EP㸧᫬ࡢࡳ࡟Ⓨ⏕ࡍࡿ㝜ᴟⅬࢆ㸪┠ⓗ࡜ࡍࡿ᫬้࡟࠾࠸࡚☜ᐇ࡟ほᐹ࡛ࡁࡿィ᪉ἲࡢ☜❧ࡀᚲせ࡛࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡜࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒ࢆ⏝࠸࡚㸪㟁ὶ࣭㟁ᅽࡢ ᐃ࡜ࣅࢹ࢜
࣓࢝ࣛ࡟ࡼࡿ᧜ᙳࡢྠᮇࢆᅗࡿ࡜ඹ࡟㸪ࣅࢹ࣓࢜࢝ࣛࡢ͆Delay´ᶵ⬟ࢆ฼⏝ࡋ࡚㸪㟁ὶ࣭㟁ᅽࡢᐃ㛤ጞ᫬้࡜ࣅࢹ࣓࢜࢝ࣛࡢ᧜ᙳ㛤ጞ᫬้࡟᫬㛫ᕪࢆタࡅࡿࡇ࡜࡟ࡼࡾ㸪௵ពࡢ᫬้࡟࠾ࡅࡿ㝜ᴟⅬࡢⓎ⏕≧ἣࢆほᐹ࡛ࡁࡿࡼ࠺࡟ࡋࡓ㸬ࡑࡢ⤖ᯝ㸪㟁ᅽ࡟㐃ືࡋ࡚ኚࢃࡿ㝜ᴟⅬࡢⓎ⏕≧ἣࢆ☜ᐇ࡟ほᐹࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡗࡓ㸬ࡲࡓ㸪㝜ᴟⅬࡢ᧜ᙳ⤖ᯝ࡜⁐᥋㒊ࡢᵝ┦࠿ࡽ㸪㝜ᴟⅬࡢⓎ⏕఩⨨࡟ࡘ࠸᳨࡚ウࡋࡓ⤖ᯝࢆሗ࿌ࡍࡿ㸬㸬ᐇ㦂᪉ἲ
⁐᥋ᐇ㦂ࡢ⿦⨨࠾ࡼࡧィ ࢩࢫࢸ࣒ࡢᴫせᅗ 1 ࡣ஺ὶ TIG ⁐᥋࡟࠾ࡅࡿᐇ㦂⿦⨨࡞ࡽࡧ࡟ィ ࢩࢫࢸ࣒ࡢᴫせࢆ♧ࡍ㸬ᐇ㦂⿦⨨ࡣ㸪⁐᥋ࢺ࣮ࢳ㸪࢖ࣥࣂ࣮ࢱᘧ஺ὶ㟁※㸦ࢲ࢖࣊ࣥ♫〇 DA300P㸧㸪࠾ࡼࡧࢩ࣮ࣝࢻ࢞ࢫ࡛ᵓᡂࡋࡓ㸬㟁ᴟᲬ࡟ࡣ 2.0%ࣛࣥࢱࢼῧຍࢱࣥࢢࢫࢸࣥ㟁ᴟᲬ㸦ᮾ㑥㔠ᒓ〇࢚ࣝࢱࣥ㸪┤ᚄ 3.2mm㸧ࢆ⏝࠸ࡓ㸬㟁ᴟᲬࡢඛ➃ゅࡣ 60r࡛࠶ࡿ㸬⁐᥋ẕᮦ࡟ࡣ⦪ 50mm㸪ᶓ 50mm㸪ཌࡉ 10mm ࡢ࢔࣑ࣝࢽ࣒࢘ྜ㔠 A1050 ࢆ⏝࠸ࡓ㸬࢔࣮ࢡ㛗ࡣ 5.0 mm ࡜ࡋࡓ㸬࡞࠾㸪⁐᥋ᐇ㦂࡛ࡣ⁐ຍᮦࢆ⏝࠸ࡎ࡟㸪࢔࣑ࣝࢽ࣒࢘ྜ㔠ᯈࡢ㟼Ṇ⁐᥋ࢆ⾜ࡗࡓ㸬஺ὶ㟁※ࡢ࿘Ἴᩘࡣ
70Hz㸪㟁ᴟࡢᴟᛶẚ㹹EP ᫬㛫/㸦EN ᫬㛫㸩EP ᫬㛫㸧㹻ࡣ 0.3㸪⁐᥋㟁ὶࡣ 150A ࡟タᐃࡋࡓ㸬ࢩ࣮ࣝࢻ࢞ࢫ
࡟ࡣ࣒࣊ࣜ࢘࢞ࢫࢆ⏝࠸㸪ࡑࡢὶ㔞ࢆ 25 L/min ࡟タᐃࡋࡓ㸬ィࢩࢫࢸ࣒ࡣ㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ
㸦ᓥὠ〇సᡤ♫〇 HPV-1㸧
㸪ࢡࣛࣥࣉ࣓࣮ࢱ㸦᪥⨨㟁ᶵ♫〇 HIOKI3285㸧㸪࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒㸦KEYENCE ♫〇 NR-500 ࠾ࡼࡧ㧗㟁ᅽィ ࣘࢽࢵࢺ NR-HV04㸧㸪࠾ࡼࡧࣃ࣮ࢯࢼࣝࢥࣥࣆ࣮ࣗࢱ࣮࡛ᵓᡂࡋࡓ㸬⁐᥋᫬࡟࠾ࡅࡿ㟁ὶ್ࡣẕᮦࢣ࣮ࣈࣝ࡟タ⨨ࡋࡓࢡࣛࣥࣉ࣓࣮ࢱ࡛
ᐃࡋ㸪ᚓࡽࢀࡓ࢔ࢼࣟࢢࢹ࣮ࢱࢆ࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒࡟ࡼࡾ཰㞟ࡋ࡚㸪ࣃ࣮ࢯࢼࣝࢥࣥࣆ࣮ࣗࢱ
࣮࡟ 1s ࡈ࡜࡟グ㘓ࡋࡓ㸬⁐᥋᫬࡟࠾ࡅࡿ㟁ᅽࡣ㸪⁐᥋ࢺ࣮ࢳ࡜⁐᥋ẕᮦ㛫ࡢ㟁఩ᕪࢆ┤᥋࣐ࣝࢳධຊࢹ࣮
ࢱ཰㞟ࢩࢫࢸ࣒࡟ࡼࡾ

ᐃࡋ㸪㟁ὶ್࡜ྠ᫬࡟ 1s ࡈ࡜࡟ࣃ࣮ࢯࢼࣝࢥࣥࣆ࣮ࣗࢱ࣮࡟グ㘓ࡋࡓ㸬㝜ᴟⅬࡢほᐹ᪉ἲTIG Welding Power Supply
pp y
A300P)(DAIHEN, DA300P)

㝜ᴟⅬࡢほᐹࡣ㸪ḟࡢࡼ࠺࡟⾜ࡗࡓ㸬(1) ࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒ࡢࢺ࣮ࣜ࢞タᐃ᮲௳࡟High Speed Camera(SHIMADZU, HPV-1)

Torch Switch࠾࠸࡚㸪ࢺ࣮ࣜ࢞ࡢᑐ㇟ࢆࠕ㟁ᅽࠖ࡜ࡋ㸪ࠕ࢚ࢵࢪࢺࣜ࢞
࣮ࠖࢆ㑅ᢥࡍࡿ㸬ࡲࡓ㸪 ᐃ㛤ጞ᮲௳࡜ࡋ࡚㸪
ࠕ❧ࡕୖࡀ

TIG
Welding Torchࡾࠖࢆ㑅ᢥࡋ㸪⁐᥋ࡀ㛤ጞࡉࢀ࡚❧ࡕୖࡀࡾࡢ㟁ᅽࡀ 3Vࢆ㉸࠼ࡓሙྜ࡟㟁ὶ࠾ࡼࡧ㟁ᅽࡢ࡟タᐃࡍࡿ㸬ḟ࡟㸪ᐃࡀ㛤ጞࡉࢀࡿࡼ࠺

ᐃ᮲௳࡟࠾࠸࡚㟁ὶ࠾ࡼࡧ㟁ᅽࡢ

Welding Base Metal
WeldinPure Aluminium)(t10 Pu
minium)Clamp meterm(HIOKI, 3285)

Shielding Gas(Helium Gas)

20
0

í

í

ᐃ㛫㝸ࢆ ȝV ࡟タᐃࡋ㸪 ᐃ᫬㛫ࢆ 50ms ࡜ࡍࡿ㸬(2) ࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟ࢩࢫࢸ࣒ࡢࢺ࣮ࣜ࢞ฟຊಙྕࢆ
㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟᥋⥆ࡍࡿ㸬ࡇࢀ࡟ࡼࡾ㸪㧗㏿ᗘࣅ− 53 −

í

Trigger Unit
(Nac Image Technology, N9619)

Data logger(KEYENCE, NR-500/NR-HV04)

0

0.01

PC

ᅗ 1㸬஺ὶ TIG ⁐᥋࡟࠾ࡅࡿᐇ㦂⿦⨨ࡢᴫ␎ᅗࢹ࣓࢜࢝ࣛࡀࢺ࣮ࣜ࢞ಙྕࢆཷࡅ࡚㸪㟁ὶ㸪㟁ᅽࡢᐃ㛤ጞ᫬้࡜ྠ᫬࡟㉳ືࡍࡿࡼ࠺࡟࡞ࡿ㸬ࡉࡽ࡟㸪

㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࡢ᧜ᙳ᮲௳ࡢタᐃ࡟࠾࠸࡚㸪³'HOD\´ࢆタᐃࡍࡿࡇ࡜࡟ࡼࡾ㸪㟁ὶ㸪㟁ᅽࡢ ᐃ㛤ጞ᫬้࡜ࣅࢹ࣓࢜࢝ࣛࡢ᧜ᙳ㛤ጞ᫬้࡟௵ពࡢ᫬㛫ᕪࢆタࡅࡿ㸬ᮏ◊✲࡛ࡣ㸪0㹼8 ms ࡢ⠊ᅖ࡛³'HOD\´ࢆタᐃࡋࡓ㸬ࡇࡢタᐃ࡟ࡼࡾ㸪EP ᫬࡟㝜ᴟⅬࡢⓎ⏕≧ἣࢆほᐹ࡛ࡁࡿࡼ࠺࡟࡞ࡿ㸬࡞࠾㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࡢ
᧜ᙳ㛫㝸ࡣ ȝV㸪᧜ᙳ᫬㛫ࡣ 0.2 ms ࡛࠶ࡿ㸬㸱㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹEP ᫬࡟Ⓨ⏕ࡍࡿ㝜ᴟⅬࢆ㸪ᮏ◊✲ࡢィ ᪉ἲ࡟ࡼࡾ☜ᐇ࡟ほᐹࡍࡿࡇ࡜ࡀ࡛ࡁࡿ࠿࡝࠺࠿ࢆ᳨ドࡋࡓ㸬ࡲࡓ㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟ࡼࡾ᧜ᙳࡉࢀࡓ㝜ᴟⅬࡢ఩⨨࡜ẕᮦࡢ⁐᥋㒊ࡢᵝ┦࡜ࢆẚ㍑ࡍࡿࡇ࡜࡟ࡼࡾ㸪㝜
ᴟⅬࡢ⏕ᡂ㡿ᇦ࡟ࡘ࠸᳨࡚ウࡋࡓ㸬ᅗ 2 ࡣᮏィࢩࢫࢸ࣒࡟ࡼࡾᚓࡽࢀࡓ㟁ᅽ࣭㟁ὶἼᙧ(a)㸪㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟ࡼࡾᚓࡽࢀࡓ㝜ᴟⅬࡢⓎ⏕≧ἣ(b)㸪࠾ࡼࡧẕᮦࡢ⁐᥋㒊ࡢᵝ┦(c)ࢆ♧ࡍ㸬࡞࠾㸪ᅗ 2(b)ࡢ㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟ࡼࡾᚓࡽࢀࡓྛ෗┿ࡣ㸪ᕥ࠿ࡽࡑࢀࡒࢀ³'HOD\´ࢆ 0ms㸪1ms ࠾ࡼࡧ 2ms ࡟タᐃࡋࡓሙྜࡢ㝜ᴟ
ⅬࡢⓎ⏕≧ἣࢆ♧ࡍ㸬ࡲࡓ㸪0.2ms 㛫࡟᧜ᙳࡉࢀࡓ 100 ᯛࡢ෗┿ࡢ࠺ࡕࡢ 1 ᯛ┠ࡢ෗┿ࢆ♧ࡋ࡚࠸ࡿ㸬ࡇࢀࡽࡢ෗┿࠿ࡽ㸪ࢱࣥࢢࢫࢸࣥ㟁ᴟࡀ EP ᫬࡟Ⓨ⏕ࡍࡿ㝜ᴟⅬࢆ࠸ࡎࢀࡢሙྜࡶ᧜ᙳࡍࡿࡇ࡜ࡀ࡛ࡁ࡚
࠸ࡿ㸬࡞࠾㸪³'HOD\´ࢆ 8ms ࡟タᐃࡋ࡚㸪ࢱࣥࢢࢫࢸࣥ㟁ᴟࡀ࣐࢖ࢼࢫ㸦EN㸧᫬࡟㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟ࡼ
ࡾ᧜ᙳࡋࡓሙྜ࡛ࡣ㸪㝜ᴟⅬࢆほᐹࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠸ࡇ࡜ࡶ☜ㄆࡋࡓ㸬ḟ࡟㸪㝜ᴟⅬࡢⓎ⏕㡿ᇦ࡟ࡘ࠸᳨࡚ウࡍࡿ㸬ᅗ 2(b)ࡢ෗┿࡜ᅗ 2(c)ࡢ෗┿ࡣࢫࢣ࣮ࣝࢆࡑࢁ࠼࡚࠸ࡿ㸬ࡇࢀࡽࢆẚ㍑ࡍࡿ࡜㸪㝜ᴟⅬࡣẕᮦࡢ⁐⼥ụࡢእ⦕࠶ࡿ࠸ࡣࡑࡢእഃࡢ㡿ᇦ࡟఩⨨ࡍࡿ㸬ࡇࡢ㝜ᴟⅬࡀᏑᅾࡍࡿ఩⨨ࡣẕᮦࡢ㓟໬⭷ࡀ㝖ཤࡉࢀࡘࡘ࠶ࡿ఩⨨࡜࡯ࡰ୍⮴ࡋ࡚࠸ࡿ㸬㸲㸬࠾ࢃࡾ࡟
஺ὶ TIG ⁐᥋࡟࠾࠸࡚㸪௵ពࡢ᫬้࡟࠾ࡅࡿ㝜ᴟⅬࡢⓎ⏕≧ἣࢆほᐹྍ⬟࡞ィࢩࢫࢸ࣒ࡢ☜❧ࢆᅗࡿࡇ࡜ࢆ┠ⓗ࡟㸪㧗㏿ᗘࣅࢹ࢜࢝

ᐃ࡜ࣅࢹ࣓࢜࢝ࣛ࡟ࡼ

ࡿ᧜ᙳࡢྠᮇࢆᅗࡿ࡜ඹ࡟㸪ࣅࢹ࣓࢜࢝ࣛࡢ͆Delay´ᶵ⬟

400

25L/min

5

300

0

-25
0

5

2

4

6

8

10

12

14

16

18

20

0

TIG ⁐᥋ᐇ㦂࡟ࡼࡾ㸪㝜ᴟⅬ
ࡢⓎ⏕ࢆ☜ᐇ࡟ほᐹ࡛ࡁࡿࡇ

30

10

300

rate: 25L/min

0
-10

-15

-30

-25
0

400

࣭ Current: 150 A
࣭ Shielding gas flow

20

-20

100

500

Photographing start time:
2.0 ms later

40

-10

200

100

-40

2

4

6

8

10

12

14

Time (ms)

16

18

20

0

-50
0

2

4

6

8

Time (ms)(a) 㟁ὶ࣭㟁ᅽࡢ

10

12

14

16

18

20

Time (ms)ᐃ⤖ᯝCathode spot᧜ᙳ㛤ጞ᫬้࡟᫬㛫ᕪࢆタࡅ࡚࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢ஺ὶ

200

-5

ᐃ㛤ጞ᫬้࡜ࣅࢹ࣓࢜࢝ࣛࡢ
᪉ἲࢆ❧᱌ࡋࡓ㸬ࡑࡋ

300

rate: 25L/min

0-20ࢆ฼⏝ࡋ࡚㸪㟁ὶ࣭㟁ᅽࡢࡓィ࣭ Current: 150 A
࣭ Shielding gas flow

10

100

-20

400

15

200

-5

-15

Photographing start time:
1.0 ms later

20

-10

50

500

25

Current (A)࣭ Current: 150 A
࣭ Shielding gas flow rate:

Current (A)

10

500

Photographing start time

Current (A)15

Voltage (V)ᅽࡢ20

Voltage (V)ࢩࢫࢸ࣒ࢆ⏝࠸࡚㸪㟁ὶ࣭㟁

Voltage (V)25࣓ࣛ࡜࣐ࣝࢳධຊࢹ࣮ࢱ཰㞟

Electrode

5 mm

5 mm

5 mm

(b) 㝜ᴟⅬࡢほᐹ⤖ᯝ㸦㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟ࡼࡿ᧜ᙳ㸧࡜ࢆ☜ㄆࡋࡓ㸬ࡲࡓ㸪㝜ᴟⅬࡢ᧜ᙳ⤖ᯝ࡜⁐᥋㒊ࡢᵝ┦࠿ࡽ㸪㝜ᴟⅬࡣẕᮦࡢ⁐⼥ụࡢእ⦕࠶ࡿ࠸ࡣࡑࡢእഃࡢ㡿ᇦ

5 mm

5 mm

5 mm

࡟఩⨨ࡍࡿࡇ࡜ࢆ♧ࡋࡓ㸬㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧(c) ⁐᥋㒊ࡢᵝ┦㸦ࢹࢪࢱ࣓ࣝ࢝ࣛ࡟ࡼࡿ᧜ᙳ㸧ᅗ 2 㟁ὶ࣭㟁ᅽࡢ ᐃ⤖ᯝ(a)㸪㝜ᴟⅬࡢⓎ⏕≧ἣ(b)㸪⁐᥋㒊ࡢᵝ┦(c)− 54 −0 ⁐᥋࢔࣮ࢡ⌧㇟㸪⁐⼥ụ⌧㇟࠾ࡼࡧ⁐᥋㍺㏦⌧㇟ゎᯒ  ̺TIG ⁐᥋࡟࠾ࡅࡿ࢔࣮ࢡ⌧㇟ෆ࡛ࡢ⁐⼥ụ⌧㇟ゎᯒ࡟㛵ࡍࡿ◊✲̺ᐑᓮ኱Ꮫ ᩍ⫱ᩥ໬Ꮫ㒊 ‫‮‬ᆅ ᩄྐ㸯㸬ࡣࡌࡵ࡟
⌧ᅾ㸪(Tungsten Inert Gas)TIG ⁐᥋ࡣ㸪୍⯡ⓗ࡞Ⅳ⣲㗰ཬࡧࢫࢸࣥࣞࢫ࡞࡝ࡢྜ㔠㗰ࡸ࢔࣑ࣝ㸪ࢳࢱࣥ㸪࣐ࢢࢿࢩ࣒࢘࡞࡝ࡢྛ✀ᮦᩱࡢ୍⯡〇ရ࠿ࡽ༙ᑟయ〇㐀⿦⨨ࡸࣂ࢖࢜㛵㐃⿦⨨㸪ࣟࢣࢵࢺ࡞࡝ࡢ⯟✵Ᏹᐂ㛵㐃ᶵჾ࡞࡝᭱ඛ➃〇ရࡢ⁐᥋࡟ᗈࡃ౑⏝ࡉࢀ࡚࠸ࡿࠋTIG⁐᥋ࡢṔྐࡣྂࡃ㸪TIG ⁐᥋ࡢ⁐⼥ụෆ㒊࡛ࡢ࣓࢝ࢽࢬ࣒࡟ࡘ࠸࡚ࡣ㸪㝜ᴟⅬ⌧㇟ࡢ」㞧ࡉ࠿ࡽᮍࡔ㝜ᴟⅬᣲືࡸ㝖ཤ㐣⛬ࡢヲ⣽㸪ࡲࡓࡑࡢ㏿ᗘ➼ࡢලయⓗ࡞≀⌮㔞࡟㛵ࡋ࡚ࡣᮍゎ
᫂࡞Ⅼࡀከࡃ㸪ᐇ㦂ⓗ࡟ゎ᫂ࡉࢀࡓ◊✲஦౛ࡣ࡞࠸ࠋࡑࡇ࡛ᮏㄽᩥ࡛ࡣ㸪࢔࣑ࣝࢽ࣒࢘㗰ᮦୖ࡛ࢩ࣮ࣝࢻ࢞ࢫ࡟࣒࣊ࣜ࢘࢞ࢫࢆ⏝࠸ࡓ஺ὶ TIG ⁐᥋᫬࡟ࠊ㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟ࡼ
ࡾ⁐⼥ụ㏆ഐࡢ᧜ᙳࢆ⾜ࡗࡓ⤖ᯝ㸪⁐⼥ụ୰ᚰ㒊࡟㝜ᴟⅬࡢᏑᅾࡋ࡞࠸ࡇ࡜ࢆ᫂ࡽ࠿࡜ࡋ
ࡓࠋࡇࡢⅬ࡟ࡘ࠸࡚㸪㝜ᴟⅬࡢᏑᅾ᭷↓࡟ࡘ࠸࡚Ⓨ⏕࣓࢝ࢽࢬ࣒➼࡟ࡘ࠸࡚⪃ᐹࡋࡓࡢ࡛
ሗ࿌ࡍࡿࠋ䠎䠊ᐇ㦂⿦⨨ཬ䜃᪉ἲ㻌 ᅗ 1 ࡣ㸪࢔࣑ࣝࢽ࣒࢘ᯈ࡟࠾ࡅࡿ஺ὶ TIG ⁐᥋᫬ࡢ⁐⼥ụཬࡧ㓟໬⭷ୖࡢ㝜ᴟⅬᣲືࡸ
࢔࣮ࢡⅬᘼ┤ᚋࡢ㝜ᴟⅬࡢほ ࡍࡿࡓࡵࡢᐇ㦂⿦⨨ᴫ␎ࢆ♧ࡍࠋྠᅗࡼࡾ㸪஺ὶ TIG ⁐᥋ᶵ㸦DAIHEN Co.; DA300P㸧ࢆ⏝࠸࡚㸪ࢩ࣮ࣝࢻ࢞ࢫ࡟ He ࢞ࢫ㸦25 L/min㸧ࢆᑟධࡋ㸪㟁ὶ್ 250A ཬࡧ࿘Ἴᩘ 70Hz㸪EP ẚ(EP ᫬㛫/(EN ᫬㛫㸩EP ᫬㛫))ࢆ 0.3 ࡜ࡋࡓࢱࢵࢳࢫ
ࢱ࣮ࢺ࡟ࡼࡿ࢔࣑ࣝࢽ࣒࢘ᯈ㸦t24 mm㸧࡛ࡢ஺ὶ TIG ⁐᥋ࢆ⾜ࡗࡓࠋᮏᐇ㦂࡛ࡣ㸪㟁ᴟᲬࢆ㸩㸦ṇᴟ㸧࡜ࡋ࡚㸪ẕᮦࢆ㸫㸦㈇ᴟ㸧࡜ࡋ࡚࠸ࡿࡓࡵ㸪㟁ᴟᾘ⪖ࡀ኱ࡁࡃ㸪ࢡ࣮ࣜࢽࣥ
ࢢస⏝ࡀ࢔࣑ࣝࢽ࣒࢘ᯈ㸦ẕᮦ㸧࡟ຠ⋡Ⰻࡃస⏝ࡍࡿࡶࡢ࡜ࡋ࡚࠸ࡿࠋᐇ㦂࡛ࡣ㸪2.0%ࣛࣥࢱࢼῧຍࢱࣥࢢ
ࢫࢸࣥ㟁ᴟᲬ㸦ရ㉁㸸࢚ࣝࢱࣥ㸹ࢧ࢖ࢬ㸸3.2150 㹫㹫/ᮾ㑥㔠ᒓओ㸧ࢆ౑⏝ࡋ㸪㝜ᴟᚄཬࡧඛ➃ゅࡣ 3.0 mm
ཬࡧ 60 r࡜ࡋࡓࠋ࢔࣮ࢡ㛗ࡣ 5.0 mm ࡜ࡋࡓࠋ࢔࣮
ࢡⅬᘼᚋ⣙ 1.0 ⛊ᚋࡢ⁐⼥ụࢆ㉸㧗㏿ࣅࢹ࣓࢜࢝ࣛ
(500,000fps㸹200ȣs 㛫㝸㸹Gain1㸹Expose1/2㸧࡟ࡼࡾ᧜ᙳࢆ⾜ࡗ࡚࠸ࡿࠋ
Fig. 1. Experimental setup.

㸱㸬ᐇ㦂⤖ᯝཬࡧ⪃ᐹ
ᅗ 2 ࡣࠊ㧗㏿ᗘ࣓࢝ࣛ࡟ࡼࡾ᧜ᙳࡋࡓ஺ὶ TIG ⁐᥋᫬ࡢ⁐⼥ụ㏆ഐࡢ⏬ീࢆ♧ࡍࠋ㏻ᖖ㸪㝜ᴟⅬࡣ㸪㟁ὶᐦᗘࡀᴟࡵ࡚㧗ࡃ㸪ẕᮦ㔠ᒓ⵨ẼࡢⓎ⏕ࢆక࠺ࡀ㸪㝜ᴟⅬࡢᙧᡂࡑࡢࡶࡢࡣ㸪ẕᮦ⾲㠃ࡢ㓟໬⭷ࡢ࢚ࢵࢪࡸࣆ࣮ࣥ࣍ࣝ㒊࡟⏕ࡌࡸࡍࡃྠ᫬࡟㓟໬⭷ࡢ◚ቯࡸ㝖ཤࢆᘬࡁ㉳ࡇࡍࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡇࡢ⌧㇟ࡀ㐃⥆ࡋ

− 55 −

࡚⏕ࡌࡿࡓࡵ࡟㸪࢔࣮ࢡࡢ㏻㐣ࡋࡓ࠶࡜ࡢẕᮦ⾲㠃࠿ࡽࡣ㸪㓟໬≀ࡀࡁࢀ࠸࡟㝖ཤࡉࢀࡿࡇ࡜࡟࡞ࡿࠋࡲࡓ㸪㝜ᴟⅬࡢᣲື࡟ࡘ࠸࡚ࡣ㸪㟁ᴟඛ➃ࡢ⁐⁲࡟ാࡃຊࡶ㛵㐃ࡍࡿࡶࡢ࡜
⪃࠼ࡽࢀࡿࠋ౛࠼ࡤ㸪㔜ຊཬࡧ⾲㠃ᙇຊ㸪ࣆࣥࢳຊ㸪࢔࣮ࢡຊ㸪ࣉࣛࢬ࣐Ẽὶ࡞࡝ࡀᣲࡆ
ࡽࢀࡿ(1)ࠋ㝜ᴟⅬࡀ⁐⼥ụ୰ᚰ࡟Ꮡᅾࡋ࡞࠸⌮⏤࡜ࡋ࡚ࡣ㸪㏻ᖖࠊTIG ⁐᥋࡟࠾ࡅࡿ㟁ὶศᕸࡣࠊ㝜ᴟ㒊࡛㟁ὶᐦᗘࡀ㧗ࡃ㸪㝧ᴟ࡛పࡃ࡞ࡾ㸪㝜ᴟ࠿ࡽ㝧ᴟ࡟ྥ࠿ࡗ࡚ࣉࣛࢬ࣐ὶࡀ
Ⓨ⏕ࡍࡿࠋ࢔࣮ࢡࣉࣛࢬ࣐ࡣࡇࡢࡼ࠺࡞ືⓗ࡞࢞ࢫᣲືࢆෆⶶࡋ࡞ࡀࡽ㸪෸ᐃᖖⓗ࡞Ᏻᐃሙࢆᙧᡂࡋ࡚㸪࢔࣮ࢡࣉࣛࢬ࣐ࢆⓎ⏕ࡉࡏElectrodeࡿࠋྠ᫬࡟Ⓨ⏕ࡍࡿࢩ࣮ࣝࢻ࢞ࢫࡢᙳ㡪࡟10mmࡼࡾ㸪⁐⼥ụෆ㒊࠿ࡽࢡ࣮ࣜࢽࣥࢢ㡿ᇦࡢእ⦕㒊࡬࢞ࢫὶ࡜࡜ࡶ࡟㝜ᴟⅬࡀ⛣ືࡍ

Cathodespot

2.0 ʅs4.0 ʅs

10.0 ʅs14.0 ʅs20.0 ʅs24.0 ʅs30.0 ʅs34.0 ʅs40.0 ʅs44.0 ʅs50.0 ʅs0 ʅsMolten poolࡿࡇ࡜ࡀ᳨ウࡉࢀࡿࠋ≉࡟ࠊ࢔࣑ࣝࢽ࣒࢘
㔠ᒓࡢ⁐⼥ụ࠿ࡽࡢほᐹ࡛ࡣࠊ⁐⼥ᆅ୰ᚰ㒊ࡀ㧗࠸ ᗘ࡛⁐⼥ࡉࢀࡿࡇ࡜࡟ࡼࡾࠊ㝧ᴟ࡜㝜ᴟ㛫ࡢ㊥㞳ࡀᗈࡃ࡞ࡾࠊ⁐⼥ụෆࡢᗘࡢప࠸እഃ࡜ࡢ㝧ᴟ࡜㝜ᴟ㛫ࡢ㊥㞳ࡀ⊃࠸Ⅽ࡟㝜ᴟⅬࡀከࡃᏑᅾࡍࡿࡇ࡜ࡀ
⁐⼥ụෆࡢ࣓࢝ࢽࢬ࣒࠿ࡽ᳨ウ࡛ࡁࡿࠋ
㸲㸬ࡴࡍࡧ
ᮏ◊✲࡛ࡣ㸪࢔࣑ࣝࢽ࣒࢘㗰ᮦୖ࡛㸪ࢩ࣮ࣝࢻ࢞ࢫ࡟࣒࣊ࣜ࢘࢞ࢫࢆ⏝࠸ࡓ஺ὶFig.2 Cathode spots and molten pool surface in EP

TIG ⁐᥋᫬࡟࠾ࡅࡿ㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛ࡟

polarity imaged with high-speed camera.

ࡼࡿ⁐⼥ụ㏆ഐࡢ᧜ᙳࢆ⾜ࡗࡓࠋ௨ୗ࡟ᮏ
◊✲࡛᫂ࡽ࠿࡟࡞ࡗࡓⅬ࡟ࡘ࠸࡚㏙࡭ࡿࠋ᫬㛫ศゎ⬟ࡢ㧗࠸㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࡢ᧜ᙳ࡟
ࡼࡾ㸪TIG ⁐᥋ࡢ㝿ࡢ⁐⼥ụෆࡢ㝜ᴟⅬࡢᣲືࢆᤊ࠼ࡿࡇ࡜ࡀ࡛ࡁࡓࠋྠᵝ࡟㸪EP ᴟᛶ࡛⁐⼥ᆅෆࡢ㝜ᴟⅬࡢᣲືほ࡟࡚㝜ᴟⅬࢆ」ᩘᤊ࠼ࡿࡇ࡜ࡀ࡛ࡁࡓࠋ⁐⼥ᆅෆࡢ㝜ᴟⅬࡣ

⁐⼥ụ୰ᚰ㒊࡟ࡣᏑᅾࡋ࡞࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ௒ᚋࡣ㸪࢔࣑ࣝࢽ࣒࢘ᯈ࡛ࡢ஺ὶ TIG⁐᥋ࢆ⾜࠺㝿࡟㸪㓟໬⭷ࡢ㝖ཤࡸࢱࣥࢢࢫࢸࣥ㟁ᴟࡢಖㆤࡀồࡵࡽࢀࡿࠋࡑࡢࡓࡵ㸪⁐᥋ᶵᵓࡢゎ᫂ࡸࡑࢀ࡟ᇶ࡙࠸ࡓ⁐᥋᮲௳ࡢ⢭ᐦ࡞ไᚚࢆ⾜࠺ࡓࡵ࡟㸪㝜ᴟⅬࡢᣲື࣓࢝ࢽࢬ
࣒ࢆ TIG ⁐᥋ᶵࡢ㟁ὶࡸ㟁ᅽἼᙧ࡜ࡢ㛵ಀ࠿ࡽ᫂ࡽ࠿࡟ࡋ࡚࠸ࡁࡓ࠸ࠋཧ⪃ᩥ⊩㻌[1] Y. Tsujimura and M. Tanaka: Quarterly J. Japan Welding Soc., 30 (4), pp.281-287(2012) ࠙in Japaneseࠚ.
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 56 −

཯ᛂᛶ⇕ࣉࣛࢬ࣐ࡢ㧗⢭ᗘᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥᡤᒓ ஑ᕞ኱Ꮫ ᕤᏛ◊✲㝔 ໬ᏛᕤᏛ㒊㛛Ặྡ Ώ㎶㝯⾜㸪༓⥥ၨኴ㸪⏣୰Ꮫ
1. ⥴ㄽ
 ⇕ࣉࣛࢬ࣐ࡢ≉㛗࡜ࡋ࡚ࠊ㉸㧗࡛࠶ࡿࡓࡵ཯ᛂ㏿ᗘࡀⴭࡋࡃቑຍࡍࡿࡇ࡜ࠊ⇕ࣉࣛࢬ࣐୰࡟Ꮡᅾࡍࡿࣛ

ࢪ࢝ࣝ࡟ࡼࡗ࡚཯ᛂᛶࡀ㧗࠸ࡇ࡜ࠊ໬Ꮫ཯ᛂ࡟ྜࢃࡏ㓟໬࣭㑏ඖ㞺ᅖẼࢆ㑅ᢥ࡛ࡁࡿࡇ࡜ࡢ㸱ࡘࡀ࠶ࡿࠋࡇ
ࢀࡽࡢ≉㛗࡟ຍ࠼࡚ࠊỈࣉࣛࢬ࣐⿦⨨࡛ࡣ෭༷Ỉࢆ┤᥋ࣉࣛࢬ࣐※࡜ࡋ࡚౑⏝ࡍࡿࡓࡵࠊ⿦⨨ࢆᑠᆺ໬ࡍࡿ
ࡇ࡜ࡀ࡛ࡁࡿࠊ㧗࠸⇕ຠ⋡ࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡿ࡜࠸࠺฼Ⅼࡀ࠶ࡿࠋࡲࡓࠊỈ⣲ࣛࢪ࢝ࣝࠊ㓟⣲ࣛࢪ࢝ࣝࠊOH
ࣛࢪ࢝ࣝࢆ㇏ᐩ࡟ᣢࡘࡓࡵ㧗άᛶࢆά࠿ࡋࡓࣉࣟࢭࢫᒎ㛤ࡀᮃࡵࡿࠋࡋ࠿ࡋࠊ㉸㧗࡛࠶ࡿࡓࡵ࡟ࣉࣛࢬ࣐

ࢪ࢙ࢵࢺෆࡢ≀⌮໬Ꮫ㐣⛬ࢆ▱ࡿࡇ࡜ࡣ㞴ࡋࡃࠊࡇࡢၥ㢟ࢆゎỴࡍࡿ᪉ἲࡢ㸯ࡘ࡜ࡋ࡚ᩘ್ゎᯒࡀᮇᚅࡉࢀ
࡚࠸ࡿࠋᩘ್ゎᯒࡣࠊLTE㸦Local Thermodynamic Equilibrium㸧ࣔࢹࣝࢆ௬ᐃࡋ࡚⾜ࢃࢀࡿሙྜࡀከ࠸ࠋࡇࢀࡣࠊLTEࢆ௬ᐃࡍࡿ࡜ࠊ

ᗘࡀྠࡌ࡞ࡽࡤ࡝ࡇ࡛ࡶᖹ⾮⤌ᡂࡀ➼ࡋ࠸࡜ࡍࡿࡇ࡜ࡀ࡛ࡁࠊ㍺㏦ಀᩘࡸ⇕ຊᏛ≉ᛶࡀᗘ࡜ᅽຊࡢࡳࡢ㛵ᩘ࡜ࡋ࡚ィ⟬࡛ࡁࡿࡓࡵ࡛࠶ࡿࠋ
ࡋ࠿ࡋࠊࣉࣛࢬ࣐ࢆṇ☜࡟ᢕᥱࡍࡿ࡟ࡣLTEࡢ௬ᐃࡢጇᙜᛶ࡟ᑐࡍࡿ᳨ウࡀᚲせ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊ໬Ꮫ཯ᛂ㏿ᗘࢆ⪃៖࡟࠸ࢀࡓ཯ᛂ㠀ᖹ⾮㸦Chemically Non-EquilibriumࠊCNE㸧ࣔࢹ࡛ࣝࡢỈࣉࣛࢬ࣐ࢪ࢙ࢵࢺ
ࡢᩘ್ゎᯒࡀ᭱⤊ⓗ࡞┠ⓗ࡛࠶ࡾࠊLTEࣔࢹ࡛ࣝᐃᖖィ⟬ࢆ⾜࠸ࠊCNEࣔࢹ࡛ࣝࡢ㠀ᐃᖖィ⟬࡟ࡘ࡞ࡆࡿࡇ
࡜ࡀ┠ⓗ࡛࠶ࡿࠋ
ᩘ್ゎᯒἲ⇕ຊᏛ࠾ࡼࡧ㍺㏦ಀᩘ
Ỉࣉࣛࢬ࣐ࡢ㍺㏦ಀᩘࡣChapman-Enskogἲࢆ⏝࠸࡚ィ⟬ࡋࡓࠋ㟁Ꮚᐤ୚࡟ࡼࡿ୪㐍⇕ఏᑟᗘࡣࠊ1ḟ㏆ఝࢆ⏝࠸࡚ィ⟬ࡍࡿ࡜ࠊ㧗ᗘ㡿ᇦ࡟࠾࠸࡚ㄗᕪࡀ኱

ࡁࡃ࡞ࡿࠋᮏ◊✲࡛ࡣࠊ㧗ᗘ㡿ᇦ࡟࠾ࡅࡿㄗᕪࢆᑠ

ࡉࡃࡍࡿࡓࡵࠊ㟁Ꮚᐤ୚࡟ࡼࡿ୪㐍⇕ఏᑟᗘࡣ3ḟ㏆
ఝࠊ௚ࡢ㍺㏦ಀᩘ࡟ࡘ࠸࡚ࡣ1ḟ㏆ఝࢆ⏝࠸ࡓࠋࣔࢹࣝ
䝥䝷䝈䝬䝆䜵䝑䝖䛾ᗘ䚸㏿ᗘ䚸䛚䜘䜃⃰ᗘศᕸ䜢ồ

Fig. 1 Schematic image of Water plasma generator.

䜑䜛䛻䛿䚸䝥䝷䝈䝬䝆䜵䝑䝖䜢⇕ὶయ䛸䛧䛶ᢅ䛔䚸㐠ື㔞䚸䜶䝛䝹䜼䞊᪉⛬ᘧ䜢㐃❧䛥䛫䛶ゎ䛟䚹Fig. 1 䛻ᩘ್ゎᯒ䜢⾜䛖䝥䝷䝈䝬䝆䜵䝑䝖䛾䝰䝕䝹䜢♧䛩䚹㍈᪉ྥ䛻‫ݔ‬䚸༙ᚄ᪉ྥ䛻‫ݎ‬䛸䛧䛯䚹Fig. 2䚸Table 1 䛻ቃ⏺᮲௳䜢♧䛩䚹AB 㛫䛾ᗘ䛚䜘䜃㏿ᗘ䛻䛴䛔䛶䛿䚸T(A)=8000 K䚸T(B)=500 K䚸
u(A)=724 m s-1䚸u(B)=0 m s-1 䛸䛧䚸䛭䜜䛮䜜ᨺ≀⥺ୖ䛻ᗘ䛚䜘䜃㏿ᗘศᕸ䜢௬ᐃ䛧䛯䚹䜎䛯䚸AB 㛫䛿 0.9 mm䚸
AC 㛫䛿 5.0 mm䚸AE 㛫䛿 15 mm 䛸䛧䛯䚹
㻌

Fig. 2 Geometry of calculation domain.

㻞㻚㻟㻌 ௬ᐃ㻌

Table 1 Boundary conditions.

− 57 −

ࣉࣛࢬ࣐ࢪ࢙ࢵࢺ࡟ᑐࡍࡿᇶ♏᪉⛬ᘧࢆ❧࡚ࡿࡓࡵ࡟⏝࠸ࡽࢀࡓ௬ᐃࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ

[K]

[m/s]

A-B
(Nozzle)0a)㍈ᑐ⛠࡛࠶ࡿࠋb)ᐃᖖ≧ែ࡛ᒙὶ࡛࠶ࡿࠋ

B-C

500

0

c)

ගᏛⓗ࡟ⷧ࠸ࠋ

C-D

500

0

d)

⢓ᛶᩓ㐓ࡣ↓どࡍࡿࠋ

D-E
E-A

㻞㻚㻠㻌 ᨭ㓄᪉⛬ᘧ㻌

[m/s]

0

0

௨ୖࡢ௬ᐃࢆ⏝࠸ࡿ࡜ࣉࣛࢬ࣐ࢪ࢙ࢵࢺࡣ㐃⥆ὶయ࡜ࡋ࡚ᢅ࠺ࡇ࡜ࡀ࡛ࡁࡿࠋࣉࣛࢬ࣐ࢪ࢙ࢵࢺ࡟ᑐࡍࡿ
ᇶ♏᪉⛬ᘧࡣ௨ୗࡢࡼ࠺࡟࡞ࡿࠋ㻌㐃⥆ࡢᘧ㸸    ‫ ׏‬ή ሺߩ࢛ሻ ൌ Ͳ㻌ࡇࡇ࡛ߩ [kg m-1] ࡣᐦᗘࠊ࢛ [m s-1] ࡣ㏿ᗘ࡛࠶ࡿࠋ
㐠ື㔞ಖᏑᘧ㸸  ‫ ׏‬ή ሺߩ࢛࢛ሻ ൌ െ‫ ݌׏‬൅ ‫ ׏‬ή ߬㻌
߬ [Pa] ࡣᛂຊࢸࣥࢯ࡛ࣝ࠶ࡿࠋ
௞࢚ࢿࣝࢠ࣮ಖᏑᘧ㸸‫ ׏‬ή ሺߩ࢛݄ሻ ൌ ‫ ׏‬ή ൬ ‫݄׏‬൰ െ ‫ݍ‬௥ 㻌஼೛ࡇࡇ࡛݄ [J kg-1] ࡣ࢚ࣥࢱࣝࣆ࣮ࠊ݇ [W m-1 K-1] ࡣ⇕ఏᑟᗘࠊ‫[ ݌ܥ‬J kg-1 K-1] ࡣᐃᅽẚ⇕ࠊ‫ݍ‬௥ [W m-3] ࡣᨺᑕ࡟ࡼࡿ⇕ᦆኻ࡛࠶ࡿࠋ
㻌㻞㻚㻡㻌 ࢔ࣝࢦࣜࢬ࣒㻌ᮏ◊✲࡛ࡣࠊᗙᶆ⣔࡜ࡋ࡚෇⟄ᗙᶆ⣔ࢆ⏝࠸ࠊᇶ♏᪉⛬ᘧࢆ㞳ᩓ໬ࡍࡿࠋࡲࡓࠊᕪศ᱁Ꮚ࡟ࡣࢫࢱࢵ࣮࢞
ࢻ᱁Ꮚࢆ⏝࠸ࡿࠋࢫࢱࢵ࣮࢞ࢻ᱁Ꮚ࡛ࡣࠊὶ㏿ࢆᕪศࢭࣝቃ⏺ୖ࡛ᐃ⩏ࡋࠊᅽຊࡸ

ᗘࠊ≀ᛶ್࡛࠶ࡿ࡯࠿

ࡢ≀⌮㔞ࢆࢭࣝ୰ᚰ࡛ᐃ⩏ࡋ࡚࠸ࡿࠋᩘ್ゎἲࡢ࢔ࣝࢦࣜࢬ࣒࡟ࡣ SIMPLER(Semi-Implicit Method forpressure-Linked Equation Revised)ἲ[1]ࢆ⏝࠸ࡿࠋSIMPLER ἲࡣ SIMPLE ἲࡢ཰᮰ᛶࡢၥ㢟ࢆྲྀࡾ㝖ࡃࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ࢔ࣝࢦࣜࢬ࣒࡛࠶ࡿࠋ
⤖ᯝ࡜⪃ᐹ
Fig. 3 ࡟ᗘศᕸᅗࢆ♧ࡍࠋࣀࢬࣝฟཱྀ┤ᚋ࡟࠾࠸࡚ࠊᛴ⃭࡞ᗘపୗࡀ☜ㄆ࡛ࡁࡿࠋࡇࢀࡣࠊ

༙ᚄ᪉ྥࡢィ⟬⠊ᅖࡀ඘ศ࡛ࡣ࡞ࡃ 500 K ࡜࠸࠺ቃ⏺᮲௳ࡀᙳ㡪ࡋ࡚࠸ࡿࡓࡵ࡜⪃࠼ࡽࢀࡿࠋ௒ᚋ
ࡣィ⟬⠊ᅖࢆ኱ࡁࡃ࡜ࡾࠊࡼࡾ㐺ษ࡞ቃ⏺᮲௳ࢆ
Fig. 3 Temperature in water plasma.

᳨ウࡍࡿᚲせࡀ࠶ࡿࠋ⤖ㄽ

ᮏ◊✲࡛ࡣࠊỈࣉࣛࢬ࣐ࢆᑐ㇟࡜ࡋࡓ㧗⢭ᗘᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓࠋ௒ᅇࡢィ⟬⤖ᯝ࠿ࡽቃ⏺᮲௳ࡢぢ┤ࡋࡀᚲせ࡜࠸࠺ࡇ࡜ࡀࢃ࠿ࡗࡓࠋLTE ࣔࢹࣝ࡟࠾࠸࡚ࡢṇࡋ࠸ቃ⏺᮲௳ࢆ㑅ᐃࡀࠊCNE ࣔࢹ࡛ࣝࡢ
㠀ᐃᖖィ⟬࡟ࡘ࡞ࡆࡿࡓࡵ࡟ᚲせ୙ྍḞ࡛࠶ࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿࠋ
ཧ⪃ᩥ⊩1) S.V.ࣃࢱ࣮ࣥ࢝, ࢥࣥࣆ࣮ࣗࢱ࡟ࡼࡿ⇕⛣ື࡜ὶࢀࡢᩘ್ゎᯒ, ᳃໭ฟ∧ (1985) 㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 58 −

㧗㏿ᗘࣅࢹ࣓࢜࢝ࣛࢆ⏝࠸ࡓ࢔࣮ࢡᨺ㟁㟁ᴟࡢගᏛⓗィᡭἲࡢ㛤Ⓨᡤᒓ ஑ᕞ኱Ꮫ ᕤᏛ◊✲㝔 ໬ᏛᕤᏛ㒊㛛Ặྡ ⏣୰ Ꮫ㸪ᶫワኴ㑻㸪Ώ㎶㝯⾜⥴ㄽ
࢔࣮ࢡᨺ㟁ࡢ฼⏝ᢏ⾡࡜ࡋ࡚᭱ࡶᗈࡃ⏝࠸ࡽࢀ࡚࠸ࡿࣉࣟࢭࢫࡣ㸪㔠ᒓࡢ᥋ྜἲࡢ୍ࡘ࡛࠶ࡿ࢔࣮ࢡ⁐᥋ࣉࣟࢭࢫ࡛࠶ࡿ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ᴟ࡟ᚤ㔞ῧຍࡍࡿ㓟໬≀㸦ThO2, La2O3, Y2O3࡞࡝㸧ࡀཬࡰࡍ㟁ᴟᾘ⪖࡬ࡢᙳ㡪1)ࡀሗ࿌ࡉࢀ
࡚࠸ࡿࡼ࠺࡟㸪1980ᖺ௦࠿ࡽ90ᖺ௦࡟࠿ࡅ࡚ᵝࠎ࡞◊✲ࡀ㐍ࡵࡽࢀࡓ㸬ࡲࡓ㏆ᖺ࡛ࡶᘬࡁ⥆ࡁ㔜Ⅼⓗ࡟◊✲ࡉࢀ࡚࠾ࡾ㸪㟁ᴟᾘ⪖⌧㇟ࡸ㟁ᴟ㏆ഐ࡛ࡢ≀⌮⌧㇟࡟㛵ࡍࡿ᳨ドࡀ㐍ࡵࡽࢀ࡚࠸ࡿ࡞࡝2, 3)㸬ྂ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࠸ࡿࡓࡵ࡛࠶ࡾ㸪ࡇࢀࡲ࡛㠉᪂ⓗ࢞ࣛࢫ⁐⼥ᢏ⾡ࡸ㸪ࢼࣀᮦᩱྜᡂࣉࣟ
ࢭࢫ࡬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໬ࡀᙉࡃᮃࡲࢀ࡚࠸ࡿ㸬
ୖ㏙ࡢࡼ࠺࡟㸪࢔࣮ࢡ⁐᥋ᢏ⾡ࡸᮦᩱྜᡂࣉࣟࢭࢫ࡟⏝࠸ࡽࢀࡿ࢔࣮ࢡᨺ㟁࡟࠾ࡅࡿ㟁ᴟ⌧㇟ࢆゎ᫂ࡍࡿࡇ࡜ࡣ㸪ࡼࡾຠ⋡ⓗ࡞࢔࣮ࢡࣉࣟࢭࢫࢆᐇ⌧ࡍࡿࡓࡵ࡟ࡣᚲせ୙ྍḞ࡛࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪࢔࣮ࢡᨺ㟁୰ࡢ㟁ᴟ⌧㇟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㡿ᇦࢆ᧜ᙳࡋ㸪㟁ᴟ㏆ഐ࡛ࡢ≀⌮⌧㇟ࡢྍど໬ࡍࡿࡇ࡜࡛㸪ᨺ㟁㟁ᴟࡢᾘ⪖ᶵᵓࡢゎ᫂ࢆヨࡳࡓ㸬㟁ᴟࡢほᐹ࡟࠾࠸࡚ࡣ㸪Fig. 1 ୰ࡢ㉥ᯟෆࢆ᧜ᙳࡋࡓ㸬࢔࣮ࢡᨺ㟁୰ࡢ㟁ᴟࢆほᐹࡍࡿ
㝿㸪㏻ᖖ࡛ࡣ㍤ᗘࡢ㧗࠸࢔࣮ࢡࡢᙳ㡪࡟ࡼࡾ㸪㟁ᴟ⾲㠃ࡢࡳࡢほᐹࡣᅔ㞴࡛࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪≉ᐃࡢἼ㛗ࡢࡳࢆ㏱㐣ࡍࡿࣂࣥࢻࣃࢫࣇ࢕ࣝࢱ࣮ࢆ⏝࠸ࡿගᏛࢩࢫࢸ࣒ࢆ⏝࠸ࡿࡇ࡜࡛㸪㟁ᴟ࠿ࡽࡢⓎගࡢࡳࢆほࡋ㸪㟁ᴟ࠿ࡽࡢᾮ⁲㣕ᩓ࡟ࡼࡿ㟁ᴟᾘ⪖⌧㇟ࢆྍど໬ࡋࡓ㸬஦๓࡟⾜ࡗࡓⓎගศගィࡼࡾ㸪࢔࣮ࢡ⏤᮶ࡢⓎගࢆ↓ど࡛ࡁࡿἼ㛗ᇦࢆ᳨ウࡋ㸪୰ᚰἼ㛗 785
nm ࡢࣂࣥࢻࣃࢫࣇ࢕ࣝࢱ࣮ࢆ⏝࠸࡚㟁ᴟ⾲㠃࠿ࡽࡢ㐃⥆ගࡢほᐹࢆ⾜ࡗࡓ㸬− 59 −

Fig. 1 Experimental setup of multi-phase AC arc
and representative image taken by high-speed
camera.

⤖ᯝ࡜⪃ᐹከ┦஺ὶ࢔࣮ࢡᨺ㟁୰ࡢ㟁ᴟࢆほᐹࡋࡓ㧗㏿ᗘ࣓࢝ࣛࡢࢫࢼࢵࣉࢩࣙࢵࢺࢆ Fig. 2 ࡟♧ࡍ㸬㟁ᴟඛ➃ࡢ⁐⼥㒊ศࡀ㝯㉳ࡋ㸪ᾮ⁲ࡀⓎ⏕ࡍࡿᵝᏊࡀ☜ㄆ࡛ࡁࡿ㸬ࡇࡢࡼ࠺࡞ᾮ⁲Ⓨ⏕⌧㇟ࡣ㸪ከ┦஺ὶ࿘ᮇ࡟
࠾ࡅࡿ㟁ᅽ࣭㟁ὶኚື࡟ᙳ㡪ࢆཷࡅࡿࡇ࡜ࡀண᝿ࡉ
ࢀࡿ㸬ࡑࡇ࡛㸪ᾮ⁲㣕ᩓ⌧㇟࡜ከ┦஺ὶ࿘ᮇࡢ㛵ಀᛶࢆ☜ㄆࡍࡿࡓࡵ㸪஺ὶ࿘ᮇ୰ࡢᾮ⁲㣕ᩓಶᩘࡢ㛵

Fig. 2 Representative snapshots of droplet ejection
taken by high-speed cameraಀࢆ Fig. 3 ࡟♧ࡍ㸬࡞࠾㸪๓༙ࡀ㝧ᴟ᫬㸪ᚋ༙ࡀ㝜ᴟ᫬࡛࠶ࡿ㸬Fig. 3 ࡼࡾ㸪㝜ᴟཪࡣ㝧ᴟ᫬࡟࠾ࡅࡿ
᭱኱㟁ὶ᫬௜㏆࡜㸪㝜ᴟ࠿ࡽ㝧ᴟ࡬ࡢ⛣⾜᫬࡟ᾮ⁲ࡀከᩘⓎ⏕ࡍࡿഴྥࡀ☜ㄆࡉࢀࡓ㸬୍᪉㸪⢏ᚄ 250
ȝm ௨ୖࡢ኱ࡁ࡞ᾮ⁲࡟╔┠ࡍࡿ࡜㸪㝜ᴟ࡟࠾ࡅࡿ
᭱኱㟁ὶ᫬௜㏆࡜㸪㝜ᴟ࠿ࡽ㝧ᴟ࡬ࡢ⛣⾜᫬࡟ࡢࡳ㸪ᾮ⁲㣕ᩓࡀ☜ㄆࡉࢀࡓ㸬ࡇࢀࡽࡢ⢏ᚄࡢ኱ࡁ࡞ᾮ⁲ࡀ඲ᾮ⁲㣕ᩓ㉁㔞ࡢ኱㒊ศࢆ༨ࡵࡿࡓࡵ㸪ᾮ⁲㣕ᩓࡣ୺࡜ࡋ࡚㝜ᴟ᫬࡟⏕ࡌ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬㟁ᴟඛ➃࡟࠾ࡅࡿ㝯㉳ࡋࡓ⁐⼥㒊࡟ຍࢃࡿຊ࡜ࡋ
࡚(i)⾲㠃ᙇຊ㸪(ii)㟁☢ຊ࡟ࡼࡿᅽຊ㸪(iii)࢖࢜ࣥ⾪✺࡟ࡼࡿᅽຊ㸪(iv)ࢩ࣮ࣝࢻ࢞ࢫὶ࡟ࡼࡿࡏࢇ᩿ᛂຊ
ࡀ⪃࠼ࡽࢀࡿ㸬ᙳ㡪ࡀᑠࡉ࠸࡜ண

Fig. 3ࡉࢀࡓࡏࢇ᩿ᛂ

Variation of the number of the ejected
droplets from electrode tip during an AC
cycle.

ຊ௨እࡢ 3 ࡘࡢຊࢆ᥎⟬ࡋ㸪ᾮ⁲㣕ᩓᶵᵓ࡟㛵ࡋ࡚⪃ᐹࡋࡓ㸬ࡇࡇ࡛㸪㟁☢ຊ࡟ࡼࡿᅽຊࡣᾮ⁲Ⓨ⏕ࢆಁࡍຊ࡛࠶ࡾ㸪⾲㠃ᙇຊ࡜࢖࢜ࣥ⾪✺ᅽຊࡣᾮ⁲㣕ᩓࢆ㜼ࡴຊ࡛࠶ࡿ㸬㝜ᴟ᫬࡜㝧ᴟ᫬ࢆẚ㍑ࡍࡿ࡜㸪㝧ᴟ᫬ࡢ᪉ࡀ࢔࣮ࢡ࠿ࡽ㟁ᴟ࡬ࡢఏ⇕㔞ࡀ኱ࡁ࠸ࡓࡵ㸪㟁ᴟ⾲㠃࡛ࡢ㝯㉳ࡋࡓ⁐⼥㒊㠃✚ࡀ኱ࡁࡃ࡞ࡿ㸬ࡋࡓࡀࡗ࡚㸪ᾮ⁲Ⓨ⏕ࢆ㜼ࡴ⾲㠃ᙇຊࡢ್ࡀ኱ࡁࡃ࡞ࡿ㸬୍᪉㸪㝜ᴟ᫬࡛ࡣ㸪㟁ᴟ⾲㠃࡟⏕ࡌࡿ⁐⼥㝯㉳㒊ࡢ༙ᚄࡀᑠࡉࡃ࡞ࡿࡓࡵ㸪⁐⼥㒊࡟ὶࢀࡿ㟁ὶᐦᗘࡀቑຍࡍࡿ㸬ࡑࢀ࡟ࡼࡾ㸪㟁☢ຊ࡟ࡼࡿᅽຊࡀቑຍࡍࡿࡇ࡜࡛㸪㝜ᴟ᫬࡟ࡢࡳ኱⢏ᚄࡢᾮ⁲㣕ᩓࡀ⏕ࡌࡓ࡜⪃࠼ࡽࢀࡿ㸬⤖ㄽ
ᮏ◊✲࡛ࡣ㸪㧗㏿ᗘ࣓࢝ࣛ࡜ࣂࣥࢻࣃࢫࣇ࢕ࣝࢱ࣮ࢆ⏝࠸ࡿࡇ࡜࡛㸪࢔࣮ࢡᨺ㟁୰ࡢ㟁ᴟ⌧㇟ࡢືⓗᣲືࡢྍど໬࡟ᡂຌࡋࡓ㸬ከ┦஺ὶ࢔࣮ࢡࡢ㝜ᴟ᫬࣭㝧ᴟ᫬ࡢ࠸ࡎࢀ࡟࠾࠸࡚ࡶ㟁ᴟ⁐⼥㒊ࡢ㝯㉳ࡀ☜ㄆࡉࢀࡓࡀ㸪ࡑࡢ㝯㉳㒊ࡀᾮ⁲࡜࡞ࡗ࡚㟁ᴟ࠿ࡽศ㞳࣭㣕ᩓࡍࡿࡢࡣ㝜ᴟ᫬ࡢࡳ࡛࠶ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡇࢀࡣ㸪㝜ᴟ᫬࡟࠾࠸࡚ࡢࡳ㸪ᾮ⁲㣕ᩓࢆಁࡍ㟁☢ຊࡀᨭ㓄ⓗ࡜࡞ࡿࡓࡵ࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ㸬ࡇࡢࡼ࠺࡟㸪࢔࣮ࢡᨺ㟁୰ࡢ㟁ᴟ⌧㇟ࢆྍど໬ࡍࡿගᏛⓗィᡭἲࢆ⏝࠸࡚ᨺ㟁୰ࡢ▷᫬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) M. S. Benilov, J. Phys. D: Appl. Phys., 41, 144001 (2012).
4) T. Watanabe, Y. Liu, and M. Tanaka, Plasma Chem. Plasma Processing, 34, 443 (2014).
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 60 −

ࣉࣛࢬ࣐࣭࣮ࣞࢨ࣭࢖࢜ࣥࣅ࣮࣒࡟ࡼࡿ᪂⾲㠃ᨵ㉁ᶵ⬟ࡢ๰ᡂ኱Ẽᅽࣉࣛࢬ࣐࡟ࡼࡿ❅໬ฎ⌮ἲࡢ㛤Ⓨ኱ศ኱Ꮫ ᕤᏛ㒊ᕷ౗ 㱟኱
1. ◊✲⫼ᬒ㕲㗰㒊ᮦࡢ⾲㠃◳໬ἲࡢࡦ࡜ࡘ࡛࠶ࡿ❅໬ฎ⌮࡟ࡣ㸪࢔ࣥࣔࢽ࢔࢞ࢫࡶࡋࡃࡣపᅽࣉࣛࢬ࣐ࡀ฼⏝ࡉࢀ࡚ࡁࡓ㸬ࡇࡢᢏ⾡ࡀࠕ኱Ẽᅽࠖࣉࣛࢬ࣐࡛ྍ⬟࡟࡞ࢀࡤ㸪⅔ࡸ┿✵⿦⨨ࢆ⏝࠸࡞࠸⡆౽࡞᪂つฎ⌮ἲࢆ⏘ᴗ⏺࡟ᥦ౪ࡍࡿࡇ
࡜࡟ࡘ࡞ࡀࡿ㸬౛ࢆᣲࡆࡿ࡜㸪⅔࡟ᦙධ୙ྍ⬟࡞኱ᆺ㔠ᆺࡢ◳໬㸪㒊ရ〇㐀ࣛ࢖ࣥ࡬ࡢ◳໬ฎ⌮ࡢ⡆᫆ᑟධ࡟ࡘ࡞
ࡀࡿ࡜ᮇᚅࡉࢀࡿ㸬ᮏィ⏬࡛ࡣ㸪ࣃࣝࢫ࢔࣮ࢡᆺ㸦PA㸧኱Ẽᅽࣉࣛࢬ࣐ࢪ࢙ࢵࢺ࡟ࡼࡾ㕲㗰ヨᩱ࡟❅໬ฎ⌮ࢆ᪋ࡍ㸬௒ᅇࡣࡼࡾᐇ⏝ⓗ࡞ฎ⌮ࡢ㛤Ⓨࢆ┠ᣦࡋ㸪ࡇࢀࡲ࡛ࡢ◊✲[1-3]࡛౑⏝ࡋ࡚ࡁࡓᐦ㛢ᐜჾ࠾ࡼࡧእ㒊ࣄ࣮ࢱ࣮ࢆ
⏝࠸ࡎ㸪⡆᫆࡞ࣃ࣮ࢪ⏝࢝ࣂ࣮࠾ࡼࡧࣉࣛࢬ࣐ᨭ᥼᪼ ࡢࡳࢆ⏝࠸࡚ PA ࣉࣛࢬ࣐ࢪ࢙ࢵࢺ࡛㕲㗰ࡢ❅໬ࡀྍ⬟࡛࠶ࡿࡇ࡜ࢆᐇドࡍࡿ㸬
2. ᐇ㦂᪉ἲPA ࣉࣛࢬ࣐ࢪ࢙ࢵࢺࡢᴫ␎ᅗࢆᅗ 1 ࡟♧ࡍ㸬ྠ㍈෇⟄ᆺ㟁ᴟࣀࢬࣝ୰࡟ N2/H2 ΰྜ࢞ࢫࢆ⣙ 20 slm ࡛ᑟධࡋ㸪㧗㟁ᅽࣃࣝࢫ㟁※㸦plasmatreat ♫ FG3001㸧࡟ࡼࡾ༳ຍ㟁ᅽ 4.5 kV㸪ࣃࣝࢫᖜᩘPs㸪࿘Ἴᩘ 21 kHz㸪ᨺ㟁㟁ὶ 1 A ࡢࣃࣝࢫ࢔࣮ࢡᨺ㟁ࢆⓎ⏕ࡉࡏࡿ㸬⏕ᡂࡋࡓࣃࣝࢫ࢔࣮ࢡࣉࣛࢬ࣐ࡢ࢔ࣇࢱ࣮ࢢ࣮ࣟࢆࣀࢬࣝඛ➃ࡢ࢜ࣜࣇ࢕ࢫ࠿ࡽᄇᑕࡍࡿࡇ࡜࡟ࡼࡾ㸪ࢪ࢙ࢵࢺࣉࣝ
࣮࣒ࢆⓎ⏕ࡉࡏࡿ㸬ᅗ 2 ࡟♧ࡍࡼ࠺࡟ࢪ࢙ࢵࢺࣀࢬࣝ
ඛ➃ࢆ⡆᫆࡞࢝ࣂ࣮࡛そ࠸㸪ฎ⌮㞺ᅖẼ୰ࢆືస࢞ࢫ
࡟ࡼࡾࣃ࣮ࢪࡋṧ␃㓟⣲ࢆῶᑡࡉࡏࡿ㸬౑⏝ࡋࡓ࢝ࣂ࣮ࡣ▼ⱥ〇࡛࠶ࡾ㸪┤ᚄ 124 mm㸪㧗ࡉ 45 mm㸪ཌࡉ 2

ᅗ 1 ࣃࣝࢫ࢔࣮ࢡᆺࣉࣛࢬ࣐ࢪ࢙ࢵࢺࡢᴫ␎ᅗ㸬mm ࡢ࠾᳐ᆺ࡛࠶ࡿ㸬ࡲࡓ㸪▼ⱥ࢝ࣂ࣮࡜ฎ⌮ྎࡢ㛫
࡟ 1 mm ࡢ㛫㝽ࢆ✵ࡅ㸪ࡑࡇ࠿ࡽ᤼Ẽࢆ⾜ࡗࡓ㸬ฎ⌮ᗘࡢไᚚࡣ㸪᭱ࡶ⡆᫆ⓗ࡜⪃࠼ࡽࢀࡿࢪ࢙ࢵࢺࣀࢬ
ࣝ㸫ヨᩱ⾲㠃㛫ࡢ㊥㞳ࡢㄪᩚ࡟ࡼࡾ⾜ࡗࡓ㸬౪ヨᮦࡣ⇕㛫ᕤල㗰 SKD61 ࡛࠶ࡾ㸪෇┙ᙧ㸦┤ᚄ 20mm㸪ཌࡉ 4 mm㸧࡟ຍᕤࡋࡓヨᩱࢆ 1025°C ࠿ࡽ⾪㢼෭༷࡟ࡼࡾ↝ධࢀ㸪↝ᡠࡋ ᗘ 550°C ࡛ 550 Hv ⛬ᗘࡢ◳ࡉ࡟ㄪ㉁ࡋࡓ㸬ヨᩱ⾲㠃ࢆ࢔࣑ࣝࢼ◊☻๣࡛㙾㠃◊☻ࡋ㸪࢔ࢭࢺࣥ࡟ࡼࡿ㉸㡢ἼὙί࡛⬺⬡ࡋࡓ㸬ྛ↷ᑕ㊥㞳࡟࠾࠸࡚ࢪ࢙ࢵࢺࣉ࣮࣒ࣝࢆヨᩱ⾲㠃࡟↷ᑕࡍࡿࡇ࡜࡛❅໬ฎ⌮ࢆ᪋ࡋࡓ㸬ฎ⌮᫬㛫ࡣ 2 h ࡜ࡋࡓ㸬ᅗ 2 ࢪ࢙ࢵࢺࣀࢬࣝ࡜ࣃ࣮ࢪ⏝⡆᫆࢝ࣂ࣮ࡢ෗┿㸬

3. ᐇ㦂⤖ᯝ
ᅗ 3 ࡟ฎ⌮ᚋࡢヨᩱ᩿㠃ࡢ㔠ᒓ⤌⧊෗┿ࢆ♧ࡍ㸬ヨᩱࡢ᭱⾲㠃࡟ぢࡽࢀࡿⓑᒙࡀ໬ྜ≀ᒙ࡟ᑐᛂࡋ㸪ࡑࡢୗ㒊ࡢ㯮Ⰽ࡟ኚ໬ࡋࡓᒙࡀᣑᩓᒙ࡟ᑐᛂࡍࡿ㸬ྛฎ⌮ ᗘ࡟࠾࠸࡚໬ྜ≀ᒙ࠾ࡼࡧᣑᩓᒙࡢᙧᡂ࡟ᡂຌࡋ࡚࠸ࡿࡇ࡜ࡀศ
࠿ࡿ㸬ฎ⌮ ᗘ 460°C ࡢሙྜࡣ㸪୧ᒙ࡜ࡶ᫂☜࡟ほ ࡉࢀ࡚࠸࡞࠸㸬− 61 −

600°Cᅗ 3 ྛ

530°C

485°C

460°C

ᗘ࡛ฎ⌮ࢆ⾜ࡗࡓヨᩱ᩿㠃ࡢ㔠ᒓ⤌⧊෗┿㸬

600°C
ᅗ 4 ྛ

562°C

562°C

530°C

485°C

460°C

ᗘ࡛ฎ⌮ࢆ⾜ࡗࡓヨᩱ᩿㠃ࡢ Vickers ◳ࡉศᕸ㸬

ᅗ 4 ࡟ᣑᩓᒙࡢ◳ࡉศᕸࢆ♧ࡍ㸬ࡇࡇ࡛ࡣᶓ㍈ࡀࣉࣛࢬ࣐↷ᑕ୰ᚰࢆཎⅬ࡜ࡍࡿヨᩱ⾲㠃ࡢᚄ᪉ྥ࡛࠶ࡾ㸪⦪㍈ࡀ⾲㠃࠿ࡽࡢ῝ࡉ࡛࠶ࡿ㸬࣐࢖ࢡࣟ Vickers ◳ࡉࡀࢢ࣮ࣞࢫࢣ࣮࡛ࣝ♧ࡉࢀ㸪ᬯ㒊࡯࡝◳࠸㸬ᣑᩓᒙཌࡉࡣ᫂ࡽ࠿࡟ฎ⌮ ᗘࡢୖ᪼࡟࡜ࡶ࡞࠸ቑຍࡋ࡚࠾ࡾ㸪◳໬ᒙࡢ⭷ཌไᚚࡀ㐩ᡂࡉࢀࡓ㸬ฎ⌮ ᗘࡀ 530°C ⛬ᗘࡢ㐺 ࡛࠶ࢀࡤ㸪ᐦ㛢ᐜჾ࡜እ㒊ࣄ࣮ࢱ࣮ࢆ⏝࠸ࡓඛ⾜◊✲࡛ᚓࡽࢀࡓ⭷ཌ࡜ᕪ␗ࡣ࡞ࡃ[2]㸪⡆᫆ฎ⌮⣔࡟࠾࠸࡚ࡶ⌮᝿ⓗ࡞◳໬ᒙࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓ㸬4. ⤖ㄽ
ᮏ◊✲࡟ࡼࡾ㸪⡆᫆ฎ⌮⣔ࢆ⏝࠸ࡓ PA ኱Ẽᅽࣉࣛࢬ࣐ࢪ࢙ࢵࢺ࡟ࡼࡿ㕲㗰ࡢ❅໬ฎ⌮࡟࠾࠸࡚㸪ࣉࣛࢬ࣐ᨭ᥼᪼ ࡟ࡼࡿฎ⌮ ᗘࡢไᚚ࠾ࡼࡧࡑࢀ࡟࡜ࡶ࡞࠺❅໬ᒙཌࡉࡢไᚚࡀ㐩ᡂࡉࢀࡓ㸬ࡇࡇ࡟♧ࡋࡓ⤖ᯝࡢ௚࡟ࡶ኱Ẽᅽࣉࣛࢬ࣐㔠ᒓฎ⌮ࡢ◊✲ࡣ㐍ࡳ㸪་⒪⏝ࢳࢱࣥྜ㔠⾲㠃࡟࠾ࡅࡿ TiN ⷧ⭷ྜᡂ[4]㸪࠾ࡼࡧపྜ㔠⥘ࡢᒁᡤⓗᾐ❅↝ධࢀ[5]࡟ᡂຌࡋࡓ㸬ཧ⪃ᩥ⊩[1] R. Ichiki, H. Nagamatsu, Y. Yasumatsu, T. Iwao, S. Akamine, and S. Kanazawa: "Nitriding of steel surface by spraying
pulsed-arc plasma jet under atmospheric pressure", Mater. Lett. 71, 134 (2012).
[2] H. Nagamatsu, R. Ichiki, Y. Yasumatsu, T. Inoue, M. Yoshida, S. Akamine, and S. Kanazawa: "Steel nitriding byatmospheric-pressure plasma jet using N2/H2 mixture gas", Surf. Coat. Technol. 225, 26 (2013).
[3] ᕷ౗㱟኱㸪Ọᯇᐶ࿴㸪஭ୖ㈗ྐ㸪ᒣᮏᏹᩥ㸪ྜྷ⏣ᫀྐ㸪㉥ᓠಟ୍㸪㔠⃝ㄔྖࠕ኱Ẽᅽࣉࣛࢬ࣐ࢪ࢙ࢵࢺ࡟ࡼ
ࡿ㔠ᆺࡸᦾື㒊ᮦࡢ⾲㠃◳໬ἲࠖࢣ࣑࢚࢝ࣝࣥࢪࢽࣖࣜࣥࢢ 58, 868 (2013).
[4] Y. Yoshimitsu, R. Ichiki, K. Kasamura, M. Yoshida, S. Akamine, and S. Kanazawa: "Atmospheric-pressure-plasma
nitriding of titanium alloy", Jpn. J. Appl. Phys. 54, 030302 ( 2015).
[5] ஭ୖ㈗ྐ㸪ᕷ౗㱟኱㸪୕㇂ᑗᶞ㸪ྜྷ⏣ᫀྐ㸪㉥ᓠಟ୍㸪㔠⃝ㄔྖࠕ኱Ẽᅽࣉࣛࢬ࣐ࢪ࢙ࢵࢺ࡟ࡼࡿᾐ❅↝ධࢀࡢཎ⌮ᐇド࡜ ᗘ≉ᛶㄪᰝࠖ⇕ฎ⌮㸪ᢞ✏୰.
㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ࣉࣟࢭࢫᏛศ㔝㸧− 62 −

㔜ࡡᦶ᧿ᨩᢾ᥋ྜ࡟࠾ࡅࡿ࢔࣑ࣝࢽ࣒࢘ྜ㔠࡜࣐ࢢࢿࢩ࣒࢘ྜ㔠ࡢ␗ᮦ᥋ྜ࡟ཬࡰࡍ᥋ྜ᮲௳ࡢᙳ㡪ᐩᒣ┴ᕤᴗᢏ⾡ࢭࣥࢱ࣮ ୰ኸ◊✲ᡤ ຍᕤᢏ⾡ㄢᰠෆ ⱱᶞ1.

┠ⓗᦶ᧿ᨩᢾ᥋ྜ (Friction Stir Welding: FSW)ἲࡣ, ⮬ື㌴, 㕲㐨㌴୧, ⯪⯧➼ࡢ㍺㏦ᶵჾࡸᅵᮌ࣭ᘓ⠏➼ࡢศ㔝࡟࠾࠸࡚, ࢔࣑ࣝࢽ࣒࢘(Al) ྜ㔠ࢆ୰ᚰ࡜ࡋࡓᵓ㐀ᮦᩱࡢ᥋ྜἲ࡜ࡋ࡚㐺⏝ࡉࢀ࡚࠸ࡿ 1). ᮏ᥋ྜἲࡣረᛶὶື࡟ࡼ
ࡿ▷᫬㛫࡛ࡢᅛ┦᥋ྜἲ࡛࠶ࡿࡓࡵ, ᚑ᮶ࡢ⁐⼥⁐᥋࡜ẚ㍑ࡋ࡚పධ⇕࣭పṍ࡛᥋ྜ࡛ࡁࡿࡇ࡜࠿ࡽ, Al /Fe ࡢ␗✀ᮦᩱࡢ᥋ྜἲ 2, 3) ࡜ࡋ࡚ࡶ୍㒊ᐇ⏝໬ࡉࢀ, ㍺㏦ᶵჾ㒊ရࡢ㍍㔞໬ࡢほⅬ࠿ࡽὀ┠ࡉࢀ࡚࠸ࡿ. ୍᪉, ᮏ᥋ྜἲࢆ⏝࠸ࡓ␗✀ᮦᩱࡢ᥋ྜྍ⬟࡞ᮦᩱࡢ⤌ࡳྜࢃࡏࡸ᥋ྜᛶ, ᥋ྜ㒊ࡢ≉ᚩ࡟ࡘ࠸࡚ࡣ, ᮍࡔ୙᫂░࡞Ⅼࡀከ࠸.
๓ሗ 4)࡛ࡣ, Al ྜ㔠࠾ࡼࡧ࣐ࢢࢿࢩ࣒࢘ (Mg)ྜ㔠ࡢ㔜ࡡ⥅ᡭ࡟࠾ࡅࡿ᥋ྜࡢྍ⬟ᛶ࡟ࡘ࠸᳨࡚ウࡋࡓ. ◊✲࡛ࡣ,ୖᯈ࡟ Al ྜ㔠ࢆ, ୗᯈ࡟ Mg ྜ㔠ࢆ㓄⨨ࡉࡏ, ⥅ᡭࡢᶵᲔⓗᛶ㉁࡟ཬࡰࡍࣉ࣮ࣟࣈ㛗ࡉ, ࢶ࣮ࣝᅇ㌿ᩘ, ࢶ࣮ࣝࡢ⛣ື㏿ᗘࡢᙳ㡪࡟ࡘ࠸࡚ㄪᰝࡋࡓ. ࡑࡢ⤖ᯝ, ୖୗᯈ㛫࡛ᨩᢾࡀ㉳ࡁࡿࢶ࣮ࣝࢆ⏝࠸࡚, 㧗ᅇ㌿ᩘഃࡢ᥋ྜ᮲௳
࡛᥋ྜࡋࡓሙྜ, ᨩᢾ㒊ࡸ᥋ྜ⏺㠃࡟⢒኱࡞཯ᛂᒙࡀᙧᡂࡉࢀෆ㒊࡟๭ࢀࡀⓎ⏕ࡋࡓ. ๭ࢀࡢⓎ⏕ࡣ, ⥅ᡭᙉᗘࡢపୗ࡟ᐤ୚ࡍࡿࡶࡢ࡜⪃࠼ࡽࢀࡿ. ࡑࡇ࡛ᮏ◊✲࡛ࡣ, ࣉ࣮ࣟࣈࡢ౵ධ఩⨨ࡀୖᯈෆ࡟࡞ࡿࡼ࠺࡞᥋ྜࢶ࣮ࣝ
ࢆ⏝࠸࡚᥋ྜヨ㦂ࢆ⾜࠸, ᘬᙇࡏࢇ᩿Ⲵ㔜࡟ཬࡰࡍ᥋ྜ᮲௳ࡢᙳ㡪࡟ࡘ࠸᳨࡚ウࡋࡓ.
2.

◊✲᪉ἲ౪ヨᮦᩱࡣ, Al ྜ㔠ࡣ A6063-T5 ྜ㔠ࢆ, Mg ྜ㔠ࡣ AZ31 ྜ㔠ࢆ⏝࠸ࡓ. ᯈཌࡣ࠸ࡎࢀࡶ 3 mm ࡛࠶ࡿ. ⥅ᡭᙧ≧ࡣ㔜ࡡ⥅ᡭ࡜ࡋ, ୖᯈ࡟ A6063 ྜ㔠ࢆ, ୗᯈ࡟ AZ31 ྜ㔠ࢆ㓄⨨ࡋࡓ. ᥋ྜ᮲௳ࡣ, ࢶ࣮ࣝࡢᅇ㌿ᩘ (R) ࡣ 600,
800, 1000 rpm, ࣃࢫᅇᩘࡣ 1㹼3 ᅇࡢ㛫࡛ኚ໬ࡉࡏ, ࢶ࣮ࣝࡢ⛣ື㏿ᗘ (v) ࡣ 700 mm/min, ࢶ࣮ࣝࡢ๓㐍ゅࡣ3r,
ࢩࣙࣝࢲࡢᢲ㎸㔞ࡣ⣙ 0.1 mm, ࢶ࣮ࣝᤄධᚋࡢಖᣢ᫬㛫ࡣ 10 sec ୍࡛ᐃ࡜ࡋࡓ. ࡞࠾, 」ᩘᅇ᥋ྜࢆ⾜࠺ሙྜࡢࣃࢫ㛫㝸ࡣ 4 mm ࡜ࡋࡓ. ࢶ࣮ࣝࡢᙧ≧ࡣ, ࢩࣙࣝࢲᚄ ĳ15 mm, ࣉ࣮ࣟࣈ㛗ࡉࡣ 2.5 mm, ࣉ࣮ࣟࣈᙧ≧ࡣ M4㹼
M6 ࡢࢸ࣮ࣃᙧ≧࡛࠶ࡿ. ᩿㠃ほᐹ⏝ࡢヨ㦂∦ࡢሙྜ, ᖜ⣙ 70 mm, 㛗ࡉ⣙ 200 mm ࡢᯈᮦࢆ㛗ࡉ᪉ྥ࡟ 150 mm
᥋ྜࡋࡓ. ᳨㙾ヨᩱࡢㄪᩚࡣ, 10%NaOH Ỉ⁐ᾮ࡟ࡼࡾ⾜ࡗࡓ. ⥅ᡭࡢᶵᲔⓗᛶ㉁ࡣᘬᙇࡏࢇ᩿ヨ㦂࡟ࡼࡾホ౯ࡋࡓ. ᘬᙇࡏࢇ᩿ヨ㦂∦ࡣ, ᖜ⣙ 50 mm, 㛗ࡉ⣙ 150 mm ࡢᯈᮦࢆ, 㔜ࡡ௦⣙ 50 mm ࡟㓄⨨ࡋ࡚, ᖜ᪉ྥ࡟ 30 mm ᥋ྜࡋࡓ. ࡞࠾, ᘬᙇࡏࢇ᩿ヨ㦂ࡢࢡࣛࣥࣉ㛫㊥㞳ࡣ⣙ 150 mm ࡛, ࢡࣟࢫ࣊ࢵࢻࡢ⛣ື㏿ᗘࡣ 1 mm/min ࡜ࡋࡓ.

3. ◊✲⤖ᯝࣃࢫᅇᩘࡣ࠸ࡎࢀࡶ 1 ᅇ࡛࠶ࡿ. R=600 rpm ࠿ࡽ R=1000 rpm ࡢ㛫࡛ኚ໬ࡉࡏࡓሙྜ, ࢶ࣮ࣝࡢᅇ㌿ᩘࡢቑຍ࡟కࡗ࡚, ᭱኱ᘬᙇࡏࢇ᩿Ⲵ㔜ࡣቑຍࡍࡿഴྥࢆ♧ࡋࡓ. ࡲࡓ R=600 rpm ࡢ୍㒊ࡢヨ㦂∦ࡣ, ᮍ᥋ྜ࡛࠶ࡗࡓ. పᅇ㌿ᩘഃࡢሙྜࡣ, ᅇ㌿ࢶ࣮ࣝ࠿ࡽࡢⓎ⇕࠶ࡿ࠸ࡣୖᯈ
ࡢረᛶὶືᇦࡀᑠࡉࡃ࡞ࡾ, ᮍ᥋ྜ㒊ࡀ⏕ࡌ, ᭱኱ᘬᙇࡏࢇ᩿Ⲵ㔜ࡀῶᑡࡋࡓ࡜⪃࠼ࡽࢀࡿ. ࡞࠾, ヨ㦂∦ࡀ◚᩿ࡋࡓࢡࣟࢫ࣊ࢵࢻࡢᖹᆒ
ࢫࢺ࣮ࣟࢡࡣ, R=800 rpm ࡛⣙ 1 mm, R=1000 rpm ࡛⣙ 1.8 mm ࡛, ◚᩿఩⨨ࡣ࠸ࡎࢀࡶ᥋ྜ㒊࡛࠶ࡗࡓ.
 Fig. 2 ࡟ R=1000 rpm ࡛᥋ྜࡋࡓヨ㦂∦ࡢ (a) ᩿㠃࣐ࢡࣟ⤌⧊࡜, (b)᥋ྜ㒊ࡢ཯ᑕ㟁Ꮚ (BSE) ⤌ᡂീ, ࠾ࡼࡧ (c) Al ࡜ Mg ࡢ EDS ࡟ࡼࡿ⥺ศᯒ⤖ᯝࢆ♧ࡍ. ࣃࢫᅇᩘࡣ 1 ᅇ࡛࠶ࡿ. ୖᯈࡢ A6063 ྜ㔠ࡢෆ㒊

− 63 −

Maximum tensile shear load, P/ kN

Fig. 1 ࡟᭱኱ᘬᙇࡏࢇ᩿Ⲵ㔜࡟ཬࡰࡍࢶ࣮ࣝࡢᅇ㌿ᩘࡢᙳ㡪ࢆ♧ࡍ.
10
8
6
4
2

䕿: Bonded
㽢: Unbonded

0
400

600

800

1000

1200

Tool Rotation Speed, R/ rpm

Fig. 1 Effects of the tool rotation speed
on maximum tensile shear load.

࡟ࡣᨩᢾ㒊 (SZ)ࡀᙧᡂࡉࢀ, ᨩᢾ㒊࡟✵Ὕ≧ࡢḞ㝗ࡣ(a)ㄆࡵࡽࢀ࡞࠿ࡗࡓ. ୖୗᯈࡢቃ⏺⥺ࡢኚᙧࡣṤ࡝ㄆࡵࡽ

AZ31㠃࡟㐩ࡋࡓ. Fig.2 (a)ࡢ(b)࡟♧ࡍ㡿ᇦ࡟࠾࠸࡚, ୖୗᯈࡢቃ⏺࡟ࡣ, Al ࡜ Mg ࡢ୰㛫ⓗ࡞⤌ᡂࢆ᭷ࡍࡿࣇ࢕࣒ࣝ≧࣐ࢡࣟ⤌⧊࡜, Fig. 3(a) ࡟♧ࡍ (b), (c), (d) ࡢ㡿ᇦࡢ཯ᑕ㟁Ꮚ⤌ᡂീࢆ♧ࡍ. ࡞࠾, R=1000 rpm ࡛࠶ࡿ. ࣃࢫᅇᩘ

(b)
5 mm

SZ boundary

(b)
A6063

AZ31

(Upper sheet)(Under sheet)1 ȝmᯈᖜ᪉ྥ࡟ᣑ኱ࡋ, ୖୗᯈࡢቃ⏺ࡢ(b), (c), (d)ࡢ㡿ᇦ࡛,ࡢ㡿ᇦࡢ AZ31 ྜ㔠࡜཯ᛂᒙࡢ⏺㠃ࡢ୍㒊࡛๤㞳 (๭ࢀ)
ࡀ⏕ࡌࡓ.

1200

Al

900

Mg

600
300

ࢆቑຍࡉࡏࡿࡇ࡜࡟ࡼࡾ, ୖᯈࡢA6063 ྜ㔠ࡢᨩᢾ㒊ࡣ,࠸ࡎࢀࡶ 2㹼6 ȝm ࡢ཯ᛂᒙࡀᙧᡂࡉࢀࡓ. ࡋ࠿ࡋ, (b)ࠊ
(c)

1500

BSE
Intensity, a.u.

 Fig. 3 ࡟, ࣃࢫᅇᩘ 3 ᅇ࡛᥋ྜࡋࡓヨ㦂∦ࡢ (a) ᩿㠃

OM

AS

A6063

ࢀࡎ, ୖᯈࡢ A6063 ࡢᨩᢾ㒊ࡣ, ୗᯈࡢ AZ31 ྜ㔠ࡢ⾲ࡢ཯ᛂᒙࡀᙧᡂࡉࢀ, ࡑࡢཌࡉࡣ⣙ 2 ȝm ࡛࠶ࡗࡓ.

RS

(c)

0
0

2
4
Distance, d/um

6

Fig. 2 (a) Optical macrograph and (b) BSE imageof the cross sectional weld center, and (c) EDS line
analysis at the interface of A6063 and AZ31 alloy.

(a) Fig. 4 ࡟᭱኱ᘬᙇࡏࢇ᩿Ⲵ㔜࡜ࣃࢫᅇᩘࡢ㛵ಀࢆ♧ࡍ.
࠸ࡎࢀࡶ R=1000 rpm ࡛࠶ࡿ. ࣃࢫᅇᩘࡀቑຍࡍࡿ࡟ࡘ

OM

A6063

ࢀ࡚, ᭱኱ᘬᙇࡏࢇ᩿Ⲵ㔜ࡣഹ࠿࡟ቑຍࡍࡿഴྥࢆ♧ࡋ
AZ31

ࡓ. ヨ㦂∦ࡀ◚᩿ࡋࡓࢡࣟࢫ࣊ࢵࢻࡢᖹᆒࢫࢺ࣮ࣟࢡࡣ,ࣃࢫᅇᩘ 1 ᅇ࡛⣙ 1.8 mm, 2 ᅇ࡛⣙ 2 mm, 3 ᅇ࡛⣙ 1.9 mm
࡛, ࣃࢫᅇᩘ࡟ࡼࡽࡎ࡯ࡰྠ୍࡛࠶ࡗࡓ. ࡞࠾, ◚᩿఩

(b)

(c)

(d)

5 mm

SZ boundary(b)

BSE (c)BSE (d)BSE⨨ࡣ࠸ࡎࢀࡶ᥋ྜ㒊࡛࠶ࡗࡓ.
Delamination⤖ㄽᮏ◊✲࡛ࡣ, A6063 ྜ㔠࡜AZ31 ྜ㔠ࡢ㔜ࡡᦶ᧿ᨩᢾ᥋

ྜἲ࡟ࡼࡿ⥅ᡭࡢస〇᪉ἲ࡟ࡘ࠸᳨࡚ウࡍࡿࡓࡵ, ࢶ࣮ࣝࡢᅇ㌿ᩘࡸࣃࢫᅇᩘࡀ, ᥋ྜ㒊ࡢ᩿㠃⤌⧊ࡸᘬᙇࡏࢇ
᩿Ⲵ㔜࡟୚࠼ࡿᙳ㡪࡟ࡘ࠸᳨࡚ウࡋࡓ. ௨ୗ࡟ᚓࡽࢀࡓ⤖ㄽࢆ♧ࡍ.
(1) ࢶ࣮ࣝᅇ㌿ᩘࢆ 600 rpm ࠿ࡽ 1000 rpm ࡢ㛫࡛ኚ໬ࡉࡏ
ࡓሙྜ, ࢶ࣮ࣝᅇ㌿ᩘࡢቑຍ࡟కࡗ࡚, ᭱኱ᘬᙇࡏࢇ᩿Ⲵ
㔜ࡣቑຍࡍࡿഴྥࢆ♧ࡋࡓ.
(2) ࣃࢫᅇᩘ 3 ᅇ, ࣃࢫ㛫㝸 4 mm,࡛᥋ྜࡋࡓሙྜ, ୖୗᯈࡢቃ⏺⥺࡟ 2㹼6 ȝm ࡢ཯ᛂᒙࡀᙧᡂࡉࢀࡓ. ࡋ࠿ࡋ࡞ࡀ
ࡽ, ୗᯈࡢ AZ31 ྜ㔠࡜཯ᛂᒙ࡜ࡢ⏺㠃ࡢ୍㒊࡟๤㞳 (๭ࢀ)ࡀⓎ⏕ࡋࡓ.
5.

Delamination

1 ȝm

ཧ⪃ᩥ⊩

1) ⁐᥋Ꮫ఍⦅: ᦶ᧿ᨩᢾ᥋ྜ, ⏘ሗฟ∧ (2006) 12-13.
2) ⏿ᜏஂࡽ: ⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫせ, 93 (2013) 40-41.

1 ȝm

1 ȝm

Fig. 3 (a) Cross-sectional macrograph and (b), (c), (d)BSE images at the interface of A6063 and AZ31 alloy(number of passes: 3).

Maximum tensile shear load, P/ kN

4.

10
8
6
4
2
0
0

1
2
3
4
Number of Passes, N
Fig. 4 Relation between number of passes andmaximum tensile share load.

3) ⠛⏣๛: ㍍㔠ᒓ, 64. 5 (2014) 196-202.
4) ᰠෆⱱᶞ, ΎỈᏕ᫭, ịぢΎ࿴, ෠⏣ṇ࿃: ⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫせ, 95 (2014) 48-49.

(ඹྠ◊✲ศ㔝: ࢚ࢿࣝࢠ࣮ࣉࣟࢭࢫᏛศ㔝)− 64 −

A6063/SUS304ⷧ⫗෇⟶ᦶ᧿ᅽ᥋⥅ᡭࡢᛶ⬟ゎ᫂࡟㛵ࡍࡿ᳨ウරᗜ┴❧኱Ꮫ ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᮌᮧ ┿᫭┠ⓗ ␗✀ᮦᩱࢆ⤌ࡳྜࢃࡏࡓ␗ᮦ⥅ᡭࡣ㸪ᵝࠎ࡞ᮦᩱࢆ㐺ᮦ㐺ᡤ࡟㓄⨨࡛ࡁࡿ࡞࡝ࡢ฼Ⅼࡀከ࠸ࡓࡵ࡟ྛ✀⏘ᴗศ㔝࠿ࡽࡢせồࡀ㠀ᖖ࡟㧗ࡃ㸪ࡑࡢ౑⏝ࡀ┈ࠎቑຍࡍࡿࡇ࡜ࡶண ࡛ࡁࡿ㸬ࡑࡇ࡛㸪㧗࠸⏕⏘ᛶࡀ࠶ࡾ␗✀㔠ᒓࡢ᥋ྜ࡟㐺ࡋ࡚࠾ࡾ㸪࠿ࡘ⮬ື㌴࡞࡝ࡢᏳ඲ಖᏳ㒊ရࡢస〇࡟฼⏝ࡉࢀ࡚࠸ࡿᦶ᧿ᅽ᥋ἲࡢ㐺⏝ࡀ⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ㸪ᐇ㝿࡟ⷧ⫗෇⟶ࡢ᥋ྜ࡟ᦶ᧿ᅽ᥋ἲࢆ㐺⏝ࡋࡓሙྜ㸪᥋ྜ୰ࡢᦶ᧿ࢺࣝࢡࡀཎᅉ࡛ࡡࡌࡾᗙᒅࢆ
⏕ࡌࡿࡓࡵ࡟Ⰻዲ࡞⥅ᡭࡀᚓࡽࢀ࡞࠸ሙྜࡶ࠶ࡿࡓࡵ㸪␗ᮦⷧ⫗෇⟶⥅ᡭࡢస〇࡟ᑐࡋ࡚࡯࡜ࢇ࡝㐺⏝ࡉࢀ࡚࠸࡞࠸㸬ࡑࡢࡼ࠺࡞⫼ᬒࡢࡶ࡜㸪ᮏ◊✲࡛ࡣ㸪ᐇ㝿ࡢࣉࣛࣥࢺ᪋タ࡞࡝࡟࠾࠸࡚せồࡀẚ㍑ⓗ㧗࠸Alྜ㔠
A6063 ࡜SUS304ࡢⷧ⫗෇⟶ࡢ⤌ࡳྜࢃࡏࢆྲྀࡾୖࡆ㸪ࡑࢀࡽࢆ⤌ࡳྜࢃࡏࡓ␗ᮦ⥅ᡭࡀᦶ᧿ᅽ᥋ἲ࡛స〇࡛ࡁࡿ࠿ࢆ᳨ウࡋ࡚࠸ࡿ㸬୍᫖ᖺᗘࡢ◊✲1 ࡛ࡣ㸪タᐃࡋࡓᦶ᧿᫬㛫⤊஢ᚋ࡟ᅽ᥋㠃ࡢ┦ᑐ㏿ᗘࢆ▐᫬࡟㞽࡜ࡍࡿ᥋ྜ᪉ἲ࡟ࡼࡾ᥋ྜ୰࡟ࡡࡌࡾᗙᒅࢆ⏕ࡌ࡞࠸ⷧ⫗෇⟶ᦶ᧿ᅽ᥋⥅ᡭࡀᐜ᫆࡟స〇ࡍࡿࡇ࡜ࢆ♧ࡋ㸪᫖ᖺᗘࡢ◊✲2 ࡛ࡣ㸪㐺ษ࡞ᦶ᧿᫬㛫࡜࢔ࣉࢭࢵࢺᅽຊࡢ࡜ࡁ࡟A6063ഃ࠿ࡽ◚᩿ࡍࡿⰋዲ࡞⥅ᡭࡀᚓࡽࢀࡿ
ࡇ࡜ࢆ♧ࡋࡓ㸬ࡋ࠿ࡋ㸪࠸ࡎࢀࡶᐇ㦂ࡢ⠊ᅖෆ࡛ࡣ⥅ᡭࡣA6063ẕᮦ࡜ྠ➼ࡢᘬᙇᙉࡉࡣ᭷ࡋ࡚࠸࡞࠿ࡗࡓ㸬ࡑࡇ࡛ᮏᖺᗘࡣ㸪᫖ᖺᗘ1,2 ࡲ࡛ࡢ◊✲࡟ᘬࡁ⥆࠸࡚᥋ྜᐇ㦂ࢆ⾜࠸㸪⥅ᡭࡀA6063ẕᮦ࡜ྠ➼ࡢᘬᙇᙉࡉࢆ᭷
ࡋ࡚࠸࡞࠸ࡢ࡟ࡶ࠿࠿ࢃࡽࡎA6063ഃ࠿ࡽ◚᩿ࡋࡓཎᅉࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬౪ヨᮦ࠾ࡼࡧᐇ㦂᪉ἲ ౪ヨᮦ࡟ࡣᕷ㈍ࡉࢀ࡚࠸ࡿእᚄ16mm㸪ෆᚄ13mmࡢA6063TD-H18 ௨ୗ㸪A6063 ࠾ࡼࡧSUS304ࡢ෇⟶ࢆ⏝࠸ࡓ㸬ࡇࢀࡽẕᮦࡢᘬᙇᙉࡉࡣࡑࢀࡒࢀ243MPa㸪770MPa࡛࠶ࡿ㸬ྛ౪ヨᮦࢆ㛗ࡉ70mm࡟ษ᩿ࡋ㸪᥋ྜ➃㠃࡟ᖹ㠃◊๐ࢆ᪋ࡋ࡚ヨ㦂∦࡜ࡋࡓ㸬᥋ྜ࡟ࡣࣈ࣮ࣞ࢟ᘧᦶ᧿ᅽ᥋ᶵ
ࢆ⏝࠸㸪๓ሗࡲ࡛1,2 ࡢᐇ㦂࡜ྠࡌࡃࣈ࣮ࣞ࢟࡟ࡼࡿኚᙧࢆ㜵Ṇࡍࡿࡓࡵ࡟㟁☢ࢡࣛࢵࢳࢆ⏝࠸࡚ᦶ᧿᫬㛫⤊஢࡜ྠ᫬࡟ᅽ᥋㠃ࡢ┦ᑐ㏿ᗘࢆ▐᫬࡟㞽࡜ࡍࡿ᪉ἲ࡛᥋ྜࢆ⾜ࡗࡓ㸬ᅽ᥋᮲௳ࡣ㸪ᦶ᧿㏿
ᗘ27.5s-1 1650rpm 㸪ᦶ᧿ᅽຊ30MPaࡢ୍ᐃ࡜ࡋ㸪ᦶ᧿᫬㛫࡜࢔ࣉࢭࢵࢺᅽຊࢆ✀ࠎኚ໬ࡉࡏࡓ㸬᥋ྜᚋ㸪ᅽ᥋㠃㏆ഐ᩿㠃ࡢTEMほᐹ࠾ࡼࡧEDSศᯒࢆ⾜࠺࡜࡜ࡶ࡟㸪◳ࡉศᕸࡢ ᐃࢆ⾜ࡗࡓ㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹᅽ᥋㠃㏆ഐ᩿㠃ࡢ㼀㻱㻹ほᐹ࠾ࡼࡧ㻱㻰㻿ศᯒ⤖ᯝ ๓ሗ2 ࡛♧ࡋࡓࡼ࠺࡟㸪ᦶ᧿᫬㛫0.4s࡜ࡋࡓሙྜ㸪࢔ࣉࢭࢵࢺᅽ
ຊ135MPa࡜ࡋࡓ࡜ࡁ࡟A6063ഃ࠿ࡽ◚᩿ࡋࡓ⥅ᡭࡀᚓࡽࢀࡓࡀ㸪ᦶ᧿᫬㛫1.6s࡛ࡣࡑࡢࡼ࠺࡞⥅ᡭࢆᚓࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓ㸬ࡑࡢa ᦶ᧿᫬㛫0.4sཎᅉࡢ୍ࡘ࡜ࡋ࡚㸪ᅽ᥋㠃࡟㔠ᒓ㛫໬ྜ≀ IMC ࡀ⏕ᡂࡋ࡚࠸ࡿྍ
⬟ᛶࡀ⪃࠼ࡽࢀࡿ㸬ࡑࡇ࡛㸪ᦶ᧿᫬㛫ࡢᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ㸪ᦶ᧿᫬㛫ࢆึᮇࢺࣝࢡᚋࡢ0.4s࡜ࡑࢀࡼࡾࡶ㛗࠸1.6s࡜ࡋࡓ࡜ࡁ
ࡢᅽ᥋㠃㏆ഐ᩿㠃ࡢTEM-EDS⤖ᯝࢆᅗ㸯࡟♧ࡍ㸬࡞࠾㸪࢔ࣉࢭࢵࢺᅽຊࡣᦶ᧿ᅽຊ࡜ྠࡌ30MPa࡜ࡋ࡚⥅ᡭࢆస〇ࡋࡓ㸬 a ࡢᦶ᧿᫬㛫0.4sࡢ⤖ᯝࢆぢࡿ࡜㸪ᅽ᥋㠃ࡢቃ⏺ࡣࡸࡸ୙᫂░࡜࡞ࡗ࡚࠸
ࡿࡀ㸪Al㸪Fe㸪Cr࠾ࡼࡧSiࡢྛศᯒ⥺࡟࠾࠸࡚㸪೵␃ࡣㄆࡵࡽࢀ
࡞࠿ࡗࡓ㸬ࡍ࡞ࢃࡕ㸪ࡇࡢ⥅ᡭࡢᅽ᥋㠃࡟ࡣIMCࢆ⏕ᡂࡋ࡚࠸ࡿ
ྍ⬟ᛶࡣప࠸࡜ゝ࠼ࡿ㸬୍᪉㸪 b ࡟♧ࡋࡓᦶ᧿᫬㛫1.6sࡢ⤖ᯝࢆぢࡿ࡜㸪ࡇࡕࡽࡶᅽ᥋㠃ࡢቃ⏺ࡣ୙᫂░࡜࡞ࡗ࡚࠸ࡓ㸬ࡲࡓ㸪ᅽ᥋㠃㏆ഐࡢ⣙25nmࡢᖜ࡟࠾࠸࡚㸪Al㸪Fe࠾ࡼࡧCrࡢྛศᯒ⥺࡟೵␃ࡀㄆࡵࡽࢀ㸪࠿ࡘSiࡣࡇࡢ௜㏆࡛⃰໬ࡋ࡚࠸ࡿࡢࡶィࡉࢀࡓ㸬ࡍ࡞ࢃࡕ㸪ࡇࡢ⥅ᡭࡢᅽ᥋㠃࡟ࡣIMCࡀ⏕ᡂࡋ࡚࠾ࡾ㸪ࡑࡢ⤌ᡂࡣ࠾࠾ࡼࡑ77Al-14Fe-3Cr at.% ࡛࠶ࡗࡓ㸬ࡘࡲࡾ㸪ึᮇࢺࣝࢡ฿

− 65 −

E ᦶ᧿᫬㛫1.6sᅗ㸯 ᅽ᥋㠃㏆ഐࡢTEMほᐹ࠾ࡼࡧEDSศᯒ⤖ᯝᅗ㸰 ᅽ᥋㠃㏆ഐ᩿㠃ࡢ◳ࡉศᕸ㐩ᚋࡢ▷࠸ᦶ᧿᫬㛫࡛ࡣIMCࡣ⏕ᡂࡋ࡚࠾ࡽࡎ㸪ᦶ᧿᫬㛫ࡀ㛗ࡃ࡞ࡿ࡜IMCࡣ⏕ᡂࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ࡼࡗ࡚㸪IMCࢆ⏕ᡂࡋ࡞࠸▷࠸ᦶ᧿᫬㛫࡛⥅ᡭࢆస〇ࡍࡿ᪉ࡀᮃࡲࡋ࠸࡜ゝ࠼ࡿ㸬ᅽ᥋㠃㏆ഐ᩿㠃ࡢ◳ࡉศᕸ ๓ሗ2 ࡛♧ࡋࡓࡼ࠺࡟㸪⥅ᡭࡣA6063ഃ࠿ࡽ◚᩿ࡋ࡚࠸ࡿࡢ࡟ࡶ࠿࠿ࢃࡽࡎA6063ẕᮦ࡜➼ࠎࡢᘬᙇᙉࡉࢆ
᭷ࡋ࡚࠸࡞࠸ཎᅉࢆ᥈ࡿࡓࡵ㸪ᅽ᥋㠃㏆ഐࡢ◳ࡉศᕸࢆᐃࡋࡓ㸬ࡑࡢ⤖ᯝࢆᅗ㸰࡟♧ࡍ㸬࡞࠾㸪ᦶ᧿᫬㛫ࡣึᮇࢺࣝࢡ฿㐩ᚋࡢ0.4s࡜ࡋ㸪࢔ࣉࢭࢵࢺᅽຊࡣ✀ࠎኚ໬ࡉࡏࡓ㸬 a ࡟♧ࡋࡓ࢔ࣉࢭࢵࢺᅽຊ30MPaࡢ⤖ᯝࢆぢࡿ࡜㸪A6063ഃࡢ⣙5.5mmࡢ⠊ᅖ࡟࠾࠸࡚㌾໬ᇦࡀㄆࡵࡽࢀ㸪᭱ᑠ◳ࡉࡣA6063ẕᮦࡢ⣙68%ࡢ್࡛࠶ࡗࡓ㸬ࡲࡓ㸪SUS304ഃࢆぢࡿ࡜㸪ࡤࡽࡘࡁࡀከ࠸ࡶࡢࡢ㸪㌾໬ࡸ◳໬㒊ࡣㄆࡵࡽࢀ࡞࠿ࡗࡓ㸬 b ࡢ࢔ࣉࢭࢵࢺᅽຊ135MPaࡢ⤖ᯝࢆぢࡿ࡜㸪ࡇࡢ⥅ᡭ࡟ࡶ㌾໬ᇦࡀㄆࡵࡽࢀࡓࡀࡑࡢᖜࡣ⣙2.6mm࡜⊃ࡃ࡞ࡗ࡚࠾ࡾ㸪࢔ࣉࢭࢵࢺᅽຊࢆቑຍࡉࡏࡓࡇ࡜࡟ࡼࡗ࡚㌾໬ᇦࡀῶᑡࡋࡓ㸬ࡇࡢ⥅ᡭࡣA6063ഃ࠿ࡽ◚᩿ࡋ࡚࠸ࡿࡇ࡜࠿
ࡽ㸪A6063ഃ࡜SUS304ഃ࡜ࡣ༑ศ࡟ᐦ╔ࡋ࡚࠸ࡓࡀ㸪ᅽ᥋㠃㏆ഐࡢA6063ഃࡀᅗ㸰 c ࡢࡼ࠺࡟㌾໬ࡋࡓࡓࡵ
࡟A6063ẕᮦ࡜ྠ➼ࡢᘬᙇᙉࡉࡀᚓࡽࢀ࡞࠿ࡗࡓࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡉࡽ࡟㸪 c ࡢ࢔ࣉࢭࢵࢺᅽຊ150MPaࡢ⤖ᯝࢆぢࡿ࡜㸪ࡇࡢ⥅ᡭ࡟ࡶ b ࡟♧ࡋࡓ࢔ࣉࢭࢵࢺᅽຊ135MPaࡢ⥅ᡭ࡜࡯ࡰྠࡌᖜࢆ᭷ࡍࡿ㌾໬ᇦࡀㄆࡵ
ࡽࢀ࠾ࡾ㸪࢔ࣉࢭࢵࢺᅽຊࢆࡉࡽ࡟ቑຍࡉࡏ࡚ࡶ㌾໬ᇦࢆపῶࡉࡏࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓ㸬ࡲࡓ㸪ࡇࡢ⥅ᡭࡢᅽ᥋㠃㏆ഐࡢA6063ഃࡢ୍㒊ࡀᗙᒅࢆ⏕ࡌ࡚࠸ࡓࡇ࡜࠿ࡽ㸪࢔ࣉࢭࢵࢺᅽຊࡣ㌾໬ᇦࡀ᭱ࡶᑡ࡞ࡃ㸪࠿ࡘᗙᒅࢆ⏕ࡌ࡞࠸㐺ษ࡞್࡜ࡋ࡞ࡅࢀࡤ࡞ࡽ࡞࠸࡜ゝ࠼ࡿ㸬⤖ㄽ ᮏ◊✲࡛ࡣ㸪ྛ✀⏘ᴗศ㔝࡟࠾࠸࡚せồࡀ㧗࠸␗ᮦⷧ⫗෇⟶⥅ᡭࢆᦶ᧿ᅽ᥋ἲ࡟ࡼࡾᐜ᫆࡟స〇࡛ࡁࡿ࠿ࢆ᳨ウࡍࡿࡓࡵ㸪Alྜ㔠 A6063 ࡜SUS304ࡢ⤌ࡳྜࢃࡏ࡟ࡘ࠸࡚ᦶ᧿㐣⛬୰ࡢ᥋ྜ⌧㇟ࢆヲ⣽࡟ㄪ࡭ࡿ࡜࡜ࡶ࡟
Ⰻዲ࡞⥅ᡭࡀᚓࡽࢀࡿᅽ᥋᮲௳ࢆ᳨ウࡋࡓ㸬ࡑࡢ⤖ᯝ㸪0.4s࡜࠸࠺ึᮇࢺࣝࢡᚋࡢ▷࠸ᦶ᧿᫬㛫࡜135MPa࡜࠸࠺㌾໬ᇦࡀ᭱ࡶᑡ࡞ࡃ㸪࠿ࡘᗙᒅࢆ⏕ࡌ࡞࠸࢔ࣉࢭࢵࢺᅽຊ࡜ࡋࡓ᮲௳࡛᥋ྜࡋࡓ࡜ࡁ࡟㸪ᅽ᥋㠃࡟㔠ᒓ㛫໬ྜ≀ࡢ⏕ᡂࢆ࡜ࡶ࡞ࢃࡎ㸪A6063ഃ࠿ࡽ◚᩿ࡍࡿⰋዲ࡞⥅ᡭࡀᚓࡽࢀࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ཧ⪃ᩥ⊩1ᮌᮧ┿᫭㸸A6063/SUS304ⷧ⫗෇⟶⥅ᡭస〇ࡢࡓࡵࡢᦶ᧿ᅽ᥋ᡭἲࡢ᳨ウ㸪኱㜰኱Ꮫ᥋ྜ⛉Ꮫඹྠ฼⏝㺃ඹྠ◊✲ᣐⅬ 2012ᖺᗘ ඹྠ◊✲ሗ࿌᭩㸪 2013 㸪68-69㸬

2ᮌᮧ┿᫭㸸ᦶ᧿ᅽ᥋ࡋࡓA6063/SUS304ⷧ⫗෇⟶⥅ᡭࡢᛶ⬟࡟ཬࡰࡍᅽ᥋᮲௳ࡢᙳ㡪㸪኱㜰኱Ꮫ᥋ྜ⛉Ꮫඹྠ฼⏝㺃ඹྠ◊✲ᣐⅬ 2013ᖺᗘ ඹྠ◊✲ሗ࿌᭩㸪 2014 㸪60-61㸬>ㅰ㎡@ ᮏ◊✲ࡢ㐙⾜࡟ᙜࡓࡾ㸪኱㜰኱Ꮫ ᥋ྜ⛉Ꮫ◊✲ᡤ ୰⏣ ୍༤ ᩍᤵ㸪Ọሯ බᙯ ≉௵ຓᩍࡢࡈ༠ຊࢆᚓࡓࡇ
࡜ࢆࡇࡇ࡟῝ࡃឤㅰ⏦ࡋୖࡆࡲࡍ㸬ࡲࡓ㸪ᮏ◊✲ࢆ㐙⾜ࡍࡿ࡟࠶ࡓࡾ㸪ᐇ㦂⿦⨨ࡢ〇స࡞࡝࡟࠾࠸࡚රᗜ┴❧኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ᕤసࢭࣥࢱ࣮࡟ࡈ༠ຊࢆ㡬࠸ࡓࡇ࡜࡟ឤㅰࡋࡲࡍ㸬ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ࣉࣟࢭࢫᏛศ㔝− 66 −

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-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
䛣䛾䝥䝻䝉䝇䛾☜❧䛚䜘䜃䛭䛾ᛂ⏝ᒎ㛤䜢⾜䛖䛻䛒䛯䛳䛶䛿䠈䝺䞊䝄↷ᑕ୰䛾᥋ྜయ䛾ຍ⇕䛚䜘䜃෭༷㐣⛬䛾ᗘኚ໬䜔䠈⿕᥋ྜᮦ䛾⇕⭾ᙇಀᩘᕪ䛻㉳ᅉ䛩䜛᥋ྜయෆ㒊䛾ᛂຊኚ໬䜢᫂䜙䛛䛻䛩䜛䛣䛸䛜㔜せ䛸⪃䛘䜙䜜䜛䚹䛧䛛䛧䠈䝺䞊䝄䝤䝺䞊䝆䞁䜾୰䛻᥋ྜయෆ㒊䛾 ᗘኚ໬䜔ᛂຊኚ໬䜢ᐇ㝿䛻┤᥋ィ 䛩䜛䛣䛸䛿ᅔ㞴䛷䛒䜛䚹䛭䛣䛷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䜢⏝䛔䠈᭷㝈せ⣲ἲ䛻䜘䜛Ⅳ໬䜿䜲⣲䛸㉸◳ྜ㔠䛾䝺䞊䝄䝤䝺䞊䝆䞁䜾᥋ྜయ䛾⇕ఏᑟゎᯒ䛚䜘䜃ᛂຊゎᯒ䜢⾜䛔䠈᥋ྜయෆ㒊䛾 ᗘኚ໬䜔ᛂຊኚ໬䛻䛴䛔䛶᳨ウ䛧䛯䚹
2.

ᐇ㦂᪉ἲ

Table 1 Laser brazing condition.

Fig. 1 䛻䠈䜝䛖ᮦ䛜㉸◳ྜ㔠䛸Ⅳ໬䜿䜲⣲䛷ᣳ䜎䜜䛯ゎᯒᑐ㇟䜢♧䛩䚹Table 1 䛻䝺䞊䝄䝤䝺䞊䝆䞁䜾᮲௳䜢♧䛩䚹䛣䜜䜙䛾᥋ྜయ䛿䝏䝱䞁䝞䞊ෆ䛻タ⨨䛥䜜䠈⣧ᗘ99.999%䛾 Ar 䜺䝇(ὶ㔞5L/min)

Pulsed YAG Average Output (kW)

0.134

Pulsed YAG wave length (nm)1064

CW LD Output (kW)0.02䛻䛶ᖖ䛻㞺ᅖẼไᚚ䛚䜘䜃෭༷䛜⾜䜟䜜䜛䚹ຍ⇕䛻䛿䠈䝟䝹䝇CW LD wave length (nm)808

YAG 䝺䞊䝄䛚䜘䜃 CW ༙ᑟయ䝺䞊䝄䛛䜙䛺䜛䝝䜲䝤䝸䝑䝗䝺䞊䝄

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

100
0.6
1.0

䜢䠈㏱᫂▼ⱥ䜺䝷䝇ᯈ䜢㏻䛧䛶㉸◳ྜ㔠ᇶᯈ䛻ᑐ䛧 85㼻䛾ゅᗘ䛷↷ᑕ䛩䜛䛣䛸䛻䜘䜚⾜䛳䛯䚹᥋ྜᮦ䛻䛿䠈SiC 䜢㑅ᢥ䛧䛯䚹㉸◳ྜ㔠⿬㠃䛻⇕㟁ᑐ䜢ᤄධ䛧䠈䜝䛖ᮦ䛸䛾᥋ゐ㠃䛛䜙 0.2mm 䛾఩⨨䛻䛶ᇶᯈᗘ䜢

(mm/s)

1.0

th(4 run)1.0

Laser beam diameter (mm)0.5ᐃ䛧䛯䚹䜝䛖ᮦ䛿䠈άᛶ㔠ᒓ䜝䛖ᮦ

(70.2mass%Ag-28.1mass%Cu-1.7mass%Ti)䜢⏝䛔䛯䚹

(3rd run)⇕ఏᑟゎᯒ䛻䛿䠈FEM 䝋䝹䝞䞊䛻 LS-DYNA version 971 䜢⏝䛔 4)䠈୕ḟඖ⇕ఏᑟ᪉⛬ᘧ䜢㝜ゎἲ䛷ゎ䛔䛯䚹ᵓ㐀ゎᯒ䛻䛿䠈
4)

Laser

FEM 䝋䝹䝞䞊䛻 LS-DYNA version 971 䜢⏝䛔 䠈㐠ື᪉⛬ᘧ

Silicon carbide㻌䜢㝧ゎἲ䛷ゎ䛔䛯䚹䛺䛚䠈ィ⟬䝰䝕䝹⡆᫆໬䛾䛯䜑䠈䜝䛖௜๓

Filler metal㻌䛛䜙᥋ྜ䛧䛶䛔䜛≧ែ䛸䛧䛶ゎᯒ䜢ᐇ᪋䛧䛯䚹Fig. 2 䛻ゎᯒ䛻⏝

WC–Co alloy䛔䛯ィ⟬䝰䝕䝹䜢♧䛩䚹

Scanning line

Fig. 1
3.

Irradiated area㻌ᐇ㦂⤖ᯝཬ䜃⪃ᐹ

Schematic illustration of laser
brazing.

Fig. 2 䛻䠈⇕ఏᑟゎᯒ䛻䜘䛳䛶ᚓ䜙䜜䛯䝺䞊䝄䝤䝺䞊䝆䞁䜾୰䛾㉸◳ྜ㔠䛚䜘䜃䜝䛖ᮦୖ䛾 ᗘศᕸ䜢♧䛩䚹䛣䜜䜙䛿䛭䜜䛮䜜䠈ධ⇕(䝺䞊䝄↷ᑕ)䜢㛤ጞ䛧䛶 0䠈9䠈18䠈27䠈36 䛚䜘䜃 300 ⛊ᚋ䜢♧䛧䛶䛚䜚䠈ධ⇕䛿 36 ⛊㛫⾜䛳䛯䚹ຍ⇕୰䛾 9 ⛊ 䛛䜙 36 ⛊䛻ὀ┠䛩䜛䛸䠈ᒁ㒊ⓗ䛺ධ⇕䛾䛯䜑䠈㉸◳ྜ㔠ୖ䛿ᒁ㒊ⓗ䛻 ᗘ䛜ୖ᪼䛧䛶䛔䜛㡿ᇦ䛜ㄆ䜑䜙䜜䛯䚹䛧䛛䛧䠈䜝䛖ᮦ㡿ᇦ䛾 ᗘศᕸ䛿䠈䛔䛪䜜䛾᫬㛫䛻䛚䛔䛶䜒᭱኱䛷䜒 40K ⛬ᗘ䛾 ᗘᕪ䛜Ꮡᅾ䛩

− 67 −

䜛䛾䜏䛷䛒䜚䠈䝺䞊䝄↷ᑕ⤊஢᫬䛾 36 ⛊䛷䛿䠈䜝
Heat
input

䛖ᮦ䛿඲య䛜⼥Ⅼ(1053K)䜢㉸䛘䛶䛔䛯䚹᭱㧗฿㐩 ᗘ䛿䠈ᐇ ್䛜 1099K䠈ィ⟬್䛜 1082K 䛷

Siliconcarbide(5×5×3.5mm)

Siliconcarbide䛒䜚䠈ᐇ ್䛸ィ⟬⤖ᯝ䛿㏆䛔್䛸䛺䛳䛯䚹䜎䛯䠈ຍ⇕䛚䜘䜃෭༷᫬䛻䛴䛔䛶䜒䠈䛭䜜䛮䜜䛾

Filler metal(3×3×0.1mm)

Fillermetal

ᗘ

WC–Co alloy

Scanning line䛻䛚䛔䛶ྠᵝ䛾໙㓄䛜ᚓ䜙䜜䠈300s 䛷䜋䜌ᐊ

WC–Co alloy䛸䛺䛳䛯䚹䛣䛾䛣䛸䛻䜘䜚䠈䝺䞊䝄䝤䝺䞊䝆䞁䜾䛻䜘

Solid element : 0.1×0.1×0.1mm(10×10×2mm)

䜛ᒁ㒊ຍ⇕䛻䛚䛔䛶䜒䠈䜝䛖ᮦ䛿▷᫬㛫䛷ẚ㍑ⓗFig. 2ᆒ୍䛻ຍ⇕䛥䜜䠈⁐⼥䛧䛶䛔䜛䛣䛸䛜♧၀䛥䜜䜛䚹

Computing model of laser brazing process andbrazing specimens5).㻌㻌

Fig. 4 䛻䠈෭༷䛜᏶஢䛧䛯 300 ⛊ 䛻䛚䛡䜛ゎᯒ䝰䝕䝹䛾 X-Z ᩿㠃䛻䛚䛡䜛(a)X䠈(b)Y 䛚䜘䜃

Temperature (K)
1200
1100
1000
900
800
700
600
500
400
300
200

(c)Z ㍈ᛂຊ䛾ศᕸ䛸䠈䜝䛖௜㔠ᒓ㒊䛾➃㒊䜢ᣑ኱䛧䛯⤖ᯝ䜢♧䛩䚹๭䜜䛜ၥ㢟䛸䛺䜛Ⅳ໬䜿䜲⣲ഃ䛻ὀ┠䛩䜛䛸䠈䜝䛖௜㔠ᒓ㒊䛾እ࿘㒊䛻ᘬᙇṧ␃

0s

9s

18s

27s

36s

300s

ᛂຊ䛾㞟୰㒊䛜ㄆ䜑䜙䜜䛯䚹X䠈Y 䛚䜘䜃 Z ㍈ᛂຊ䜢ẚ㍑䛩䜛䛸䠈X ㍈ᛂຊ䛜᭱䜒኱䛝䛔್䜢♧䛧䛯䚹䛣䛾እ࿘㡿ᇦ䛻䛚䛡䜛䠈䛭䜜䛮䜜䛾㍈ᛂຊ䛾୰䛷 X ㍈ᛂຊ䛜᭱䜒኱䛝䛟䛺䛳䛯⌮⏤䛸䛧䛶䛿䠈

Fig. 3

䛣䛾 X-Z ᩿㠃䛻䛚䛔䛶 X ㍈䛜䜝䛖ᮦ䛾⭾ᙇ཰⦰

Computed temperature distribution on WC-Co alloy andbraze metal during laser heating5).㻌䛾ᙳ㡪䜢᭱䜒ཷ䛡䜔䛩䛔᪉ྥ䛷䛒䛳䛯䛯䜑䛷䛒䜛Residualstress (MPa)䛸⪃䛘䜙䜜䜛䚹
4.

⤖ㄽ᭷㝈せ⣲ἲ䛻䜘䜛䝺䞊䝄䝤䝺䞊䝆䞁䜾㐣⛬䛾⇕ఏᑟゎᯒ䛚䜘䜃ᛂຊゎᯒ䛻䜘䜚䠈௨ୗ䛾䛣䛸䛜᫂䜙䛛䛸䛺䛳䛯䚹

(1)

(1)

(1)

(a)sx

(b)sy

(c)s

(1) 䝺䞊䝄䝤䝺䞊䝆䞁䜾୰䛾ຍ⇕䛚䜘䜃෭༷୰䛾 ᗘኚ໬䛿䠈ィ⟬್䛸ᐇ ್䛻䛿Ⰻ䛔୍⮴䛜ㄆ䜑䜙䜜䛯䚹(2) 䝺䞊䝄䝤䝺䞊䝆䞁䜾䛻䜘䜛ᒁᡤຍ⇕䛻䛚䛔䛶䜒䠈䜝䛖ᮦ⁐⼥㡿ᇦෆ䛾 ᗘศᕸ䛿䠈ຍ⇕䠈෭༷୰䜢㏻䛧䛶
᭱኱䛷䜒⣙ 40K 䛾 ᗘᕪ䛷䛒䜚䠈䜝䛖ᮦ䛿ẚ㍑ⓗᆒ୍䛻ຍ⇕䛥䜜䜛䛣䛸䛜♧䛥䜜䛯䚹

z

60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60

Fig. 4 X, Y and Z-axis stress (residual stress)
distribution on X–Z cross section around thebrazed filler metal after cooling5).

(3) Ⅳ໬䜿䜲⣲୰䛾䜝䛖௜㔠ᒓ䛾እ࿘㒊䛻䛚䛔䛶䠈Ⅳ໬䜿䜲⣲䛾◚᩿ᛂຊ(50MPa)䜢㉸䛘䜛ᘬᙇṧ␃ᛂຊ䛾Ⓨ⏕䛜᫂䜙䛛䛸䛺䛳䛯䚹
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
3) Y. Sechi, et. al., Materials & Design, 31 (2010) 2071-20774) 㯞ᑀ⥴, ᱵὠᗣ⩏, ㍍㔠ᒓ⁐᥋, 46 (2008) 19-27
5) K. Nagatsuka, et. al., Science and Technology of Welding and Joining, 19 (2014) 682-688(ඹྠ◊✲ศ㔝䠖䜶䝛䝹䜼䞊䝥䝻䝉䝇Ꮫศ㔝)− 68 −

Ỉ୰⾪ᧁἼࢆ⏝࠸ࡓ㧗ᶵ⬟ⷧᯈᮦᩱࡢ᥋ྜ࡟࠾ࡅࡿ᥋ྜࣉࣟࢭࢫࡢゎ᫂ᓫᇛ኱ᏛᕤᏛ㒊ᶵᲔᕤᏛ⛉  ி㒔኱Ꮫ ࢚ࢿࣝࢠ࣮⌮ᕤᏛ◊✲ᡤ⇃ᮏ኱Ꮫࣃࣝࢫࣃ࣮࣡⛉Ꮫ◊✲ᡤ ᳃᫛ᑑ ➟⏣❳ኴ እᮏ࿴ᖾ

㸯㸬ࡣࡌࡵ࡟ ሗ࿌⪅ࡽࡢ◊✲ࢢ࣮ࣝࣉࡣࠊ⇿⸆฼⏝࡟ࡼࡿỈ୰⾪ᧁἼࢆ⏝࠸࡚㔠ᒓⷧᯈࢆ㔠ᒓᯈୖ࡬᥋ྜࡍࡿ
᪉ἲ࡟╔┠ࡋ࡚ࠊ⟩ࢆྵࡴྛ✀㧗ᶵ⬟ᮦᩱⷧᯈࡢ⇿Ⓨᅽ᥋ࢆヨࡳ࡚࠾ࡾࠊ㉸ᛴ෭ⷧ⭷ᮦᩱࢆ㔠ᒓᇶᯈୖ࡬᥋ྜࡍࡿࡇ࡜[1,2]ࡸࠊࢱࣥࢢࢫࢸࣥࡢⷧᯈࢆ㔠ᒓᯈୖ࡟᥋ྜࡍࡿࡇ࡜[3,4]࡟ᡂຌࡋ࡚࠸ࡿࠋ
ࡇࢀࡲ࡛ࡢ㖡ᯈୖ࡬ࡢࢱࣥࢢࢫࢸࣥⷧᯈࡢ᥋ྜ◊✲࡛ࡣࠊ㖡ᯈୖ࡬ࡢྛ✀ࡢゅᗘ࡛⾪✺ࡉࡏ࡚⾜ࡗࡓᐇ㦂⤖ᯝࢆ୰ᚰ࡟ሗ࿌[3]ࡋ࡚࠸ࡿࡢ࡛ࠊࡇࡇ࡛ࡣ⇿⸆࡜ヨᩱ㛫ࡢ㊥㞳ࢆኚ໬ࡉࡏ࡚⾜ࡗࡓ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ
㸰㸬ᐇ㦂᪉ἲ ᮏ◊✲࡛౑⏝ࡋࡓᐇ㦂⿦⨨ࡢᴫ␎ᅗࢆᅗ 1 ࡟♧ࡍࠋࡇࡇ࡛⏝࠸ࡓ⿦⨨ࡣࠊ⇿⸆ࢆഴᩳࡉࡏ࡚Ỉᖹ᪉ྥ࡬ࡢ⾪✺Ⅼ⛣ື㏿ᗘ㸦Vc㸧ࢆῶᑡࡉࡏࡿ࡜࡜ࡶ࡟ࠊ⇿⸆ࡢཌࡉࢆ 5mm㸦୍ᐃ㸧࡜ࡋ࡚Ỉᖹ᪉ྥ࡬ࡢ⾪✺ᅽຊࡢస⏝ࢆ㞾⟶࠿ࡽ㐲ࡊ࠿ࡿ࡟ࡘࢀ࡚పῶࡉࡏࡿ⿦⨨࡟࡞ࡗ࡚࠸ࡿࠋ౑⏝ࡋࡓ⇿⸆ࡣ
SEP㸦࢝ࣖࢡࢪࣕࣃࣥ♫〇ࠊ⇿㏿⣙ 7km/sࠊᐦᗘ 1300kg/m3㸧࡛࠶ࡿࠋࡇࡇ࡛⇿⸆ࡢഴᩳゅȘ㸻20r
࡜ࡋࠊ⇿⸆࡜ヨᩱࡢᖹᆒ㊥㞳 D ࢆ 30, 40, 50mm ࡜ኚ໬ࡉࡏࡓᐇ㦂ࢆ⾜ࡗࡓࠋࢱࣥࢢࢫࢸࣥⷧᯈ
㸦0.1mm ཌࡉ㸧࡜㖡㸦3mm ཌࡉ㸧ࡢ㛫㝽ࡣ 0.2mm㸦୍ᐃ㸧࡜ࡋࡓࠋࢱࣥࢢࢫࢸࣥୖ࡟ࡣ SUS304
㗰〇ࡢ࢝ࣂ࣮ࣉ࣮ࣞࢺ(0.2mm)ࡀタ⨨ࡋ࡚࠶ࡿࠋ᥋ྜࡉࢀࡓᮦᩱࡣ⇿㎘᪉ྥ࡟ᖹ⾜࡟୰ᚰ㒊ࢆษ᩿ࡋࠊ◊☻ᚋࡢ⤌⧊ࢆගᏛ㢧ᚤ㙾ほᐹࡋࡓࠋ୍᪉ࠊ᥋ྜ᮲௳࡟㛵ࡋ࡚ࡣࠊ⾪ᧁၥ㢟ゎᯒࢯࣇࢺ࢙࢘࢔
ࡢ AUTODYN-2D ࢆ⏝࠸࡚ᩘ್ゎᯒࢆ⾜࠸ࠊ᥋ྜ᮲௳࡟ࡘ࠸࡚㆟ㄽࡋࡓࠋᅗ 1 Ỉ୰⾪ᧁἼࢆ⏝࠸ࡿ⇿Ⓨᅽ᥋⿦⨨[3]㸱㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ ⇿Ⓨᅽ᥋ᐇ㦂ᚋ࡟ᅇ཰ࡋࡓ D=30mm ࡢヨᩱࡢỈᖹ᪉ྥ఩⨨ X ࡢኚ໬࡟ᑐࡍࡿ᥋ྜቃ⏺⤌⧊ࢆᅗ2 ࡟♧ࡍࠋ⏺㠃࡟ࡣ X=5mm ࡛ࡣቃ⏺࡟ࢱࣥࢢࢫࢸࣥ࡜㖡ࡀᚤ⣽࡟ΰᅾࡋࡓ⁐⼥ᒙࢆᙧᡂࡋ࡚࠸ࡿ
୍᪉ࠊX=15mm ࡜ X=45mm ࡢ෗┿࡟ࡣ᫂░࡞Ἴ≧⏺㠃ࡀほᐹࡉࢀࠊࡑࡢἼ㛗ࡣ X ࡢቑຍ࡜࡜ࡶ
࡟ḟ➨࡟ῶᑡࡋࡓࠋ
ࡇࢀࡣ㔠ᒓᯈ㠃ୖ࡬ࡢᅽຊస⏝ࡢῶᑡ࡜୍⮴ࡍࡿ⤖ᯝ࡛࠶ࡿ࡜ᛮࢃࢀࡓࠋ
ࡲࡓࠊࢱࣥࢢࢫࢸࣥⷧᯈࡢ୧➃㠃࡟ࡣከᩘࡢ๭ࢀࡀ⏕ࡌ࡚࠾ࡾࠊᯈࡢษ᩿ẁ㝵࡛ட⿣ࡢ㉳Ⅼ࡜࡞ࡿḞ㝗ࡀከࡃᑟධࡉࢀࡓ࡜ᛮࢃࢀࡿ≧ἣࡀ⏕ࡌ࡚࠸ࡓࠋࢱࣥࢢࢫࢸࣥࡢⷧᯈᮦᩱࡣ㏻ᖖ⇕㛫ᅽᘏ࡛〇㐀ࡉࢀ࡚࠾ࡾࠊ≉࡟ᒙ㛫๤㞳ࢆ⏕ࡌࡸࡍ࠸ࡇ࡜࡟ὀពࢆせࡍࡿࠋᅗ 3,4 ࡣ D=40, 50mm ࡢ⤖ᯝ࡛࠶ࡾࠊἼ
ࡢࢧ࢖ࢬࡣᑠࡉࡃ࡞ࡿ࠿᫂░࡟ほᐹࡋ࡟ࡃࡃ࡞ࡿ࡜࡜ࡶ࡟ࠊ⁐⼥ᒙࡶ☜ㄆࡋ࡟ࡃ࠸≧ἣ࡛࠶ࡗࡓࠋ

− 69 −

100Pm

X=0mm

 

50Pm

X=5mm

50Pm  

50Pm

X=15mm                X=45mm
ᅗ 2 D=30mm ࡢሙྜࡢ᥋ྜቃ⏺ࡢගᏛ㢧ᚤ㙾⤌⧊

50Pm 

X=15mm50Pm

 X=45mm
ᅗ 3 D=40mm ࡢሙྜࡢ᥋ྜቃ⏺ࡢගᏛ㢧ᚤ㙾⤌⧊

50Pm     X=15mm               X=45mm
ᅗ 4 D=50mm ࡢሙྜࡢ᥋ྜቃ⏺ࡢගᏛ㢧ᚤ㙾⤌⧊

50Pm

 ᅗ 5 ࡣࠊ᥋ྜ᮲௳࡟㛵ࡍࡿ Welding window ࢆ♧ࡋ࡚࠸ࡿࡀࠊ࠸ࡎࢀࡢሙྜࡶ᥋ྜ᮲௳ࡢୗ㝈㸦ኴ⥺㸧ࢆ㉸࠼ࡿ᮲௳࡛࠶ࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋྛᐇ㦂᮲௳࡟ᑐࡍࡿࣉࣟࢵࢺࡣ D=30mm ࡢ᪉ࡀ㧗ᅽࡢస⏝࡟ࡼࡾ ȕࠊVc ࡜ࡶ࡟㧗ࡃࠊD ࡢቑຍ࡟కࡗ࡚᮲௳ࡣ᥋ྜ
᮲௳ࡢୗ㝈࡟㏆࡙ࡃࡇ࡜ࡀ▱ࡽࢀࡓࠋᅗ 5 Welding windowཧ⪃ᩥ⊩[1] K.Hokamoto, K.Nakata. A.Mori, S.Tsuda, T.Tsumura and A.Inoue, J.Alloys and Compounds,
472(2009), pp.507-511.
[2] K.Hokamoto, N.Nakata, A.Mori, S.Ii, R.Tomoshige, S.Tsuda, T.Tsumura and A.Inoue, ibid.,
485(2009), pp.817-821.
[3] P.Manikandan, J.O.Lee, K.Mizumachi, A.Mori, K.Raghukandan and K.Hokamoto, J
Nuclear Mater, 418(2011), pp. 281-285.
[4] D.Mori, R.Kasada, S.Konishi, Y.Morizono and K.Hokamoto, Fusion Engineering and Design,
89(2014), pp.1086-1090.
(ඹྠ◊✲ศ㔝: ࢚ࢿࣝࢠ࣮ࣉࣟࢭࢫᏛศ㔝)− 70 − ⏺㠃ࢼࣀ࣡࢖ࣖᙧᡂ࡟ࡼࡿ୰㛫ᒙࣞࢫᶵ⬟ᛶⷧ⭷ࡢᡂ⭷ᗈᓥ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲㝔
ຍ⸨ᫀᙪ

㸯㸬⥴ゝ
 ࡇࢀࡲ࡛ࡢ◊✲࡛㸪᫬ຠᛶྜ㔠⾲㠃࡟㸪CrC ࠿ࡽ࡞ࡿ◳㉁ࢼࣀ࣡࢖ࣖࡢᙧᡂ࡟ᡂຌࡋࡓ㸬ᅗ 1 ࡟౛ࢆ♧ࡍ㸬ᮏ࣡࢖ࣖࡣ㸪┤ᚄࡀ 1ȣm ௨ୗ࡜ᴟࡵ࡚⣽ࡃ㸪㛗ࡉࡀᩘȣm ࠿ࡽᩘ༑ȣm ࡜㧗࢔ࢫ࣌ࢡࢺẚ࡛࠶ࡿ࡜࡜ࡶ࡟㸪
CrC ࠿ࡽ࡞ࡿࡢ࡛ᑟ㟁ᛶࡸ㧗࠸ᙉᗘࢆ᭷ࡋ࡚࠸ࡿ㸬ࡉࡽ࡟㸪ᮏࢼࣀ࣡࢖ࣖࡣᇶᮦ࠿ࡽᡂ㛗ࡋ࡚࠸ࡿࡢ࡛㸪⬺ᅗ  ࢼࣀ࣡࢖ࣖࡢ௦⾲౛ⴠࡍࡿࡇ࡜ࡣ࡞࠸㸬 ㏆ᖺ㸪㔠ᒓᮦᩱࡢษ๐࡟࠾࠸࡚ࡣ㸪㞴ຍᕤᮦࡢษ๐ࡀቑຍ
ࡋ࡚࠸ࡿ㸬㞴ຍᕤᮦ⏝ษ๐ᕤල࡟ࡣ㸪◳ᗘࡀᴟࡵ࡚㧗࠸ TiN
ࡸ DLC ➼ࡀࢥ࣮ࢸ࢕ࣥࢢࡉࢀࡓᕤලࡀ౑⏝ࡉࢀ࡚࠸ࡿ㸦ᅗ㸰㸧㸬ࢥ࣮ࢸ࢕ࣥࢢᕤලࡢ౑⏝࡟࠾࠸࡚ၥ㢟࡜࡞ࡿࡢࡣ㸪ⷧ⭷ࡢࡣࡃ㞳࡛࠶ࡿ㸬ࡣࡃ㞳ࢆ㜵ࡄࡓࡵ࡟㸪୰㛫ᒙࡀタࡅࡽࢀࡿࡀ㸪ࡑࡢ⤌ᡂ࡟ࡣ⎔ቃ࡟᭷ᐖ࡞ඖ⣲ࡀྵࡲࢀࡿሙྜࡀከ࠸
ୖ࡟㸪ᒙ㛫࡛ࡢࡣࡃ㞳ࡀ㉳ࡇࡿ࡞࡝㸪᏶඲࡟ࡣࡃ㞳ࢆ㜵ࡄࡇ࡜ࡣฟ᮶࡚࠸࡞࠸㸬 ࡑࡇ࡛ᮏ◊✲࡛ࡣࡇࢀࡲ࡛࡟ᘬࡁ⥆ࡁ㸪ࣉࣛࢬ࣐ᨺ㟁࡟ࡼࡾ㧗㏿ᗘ㗰(SKH51)ᇶ┙⾲㠃࡟෇㗹≧㸪ࢼࣀ࣭࣐࢖ࢡࣟ࣡࢖
ࣖ≧✺㉳≀ࢆᙧᡂࡉࡏࡓࡢࡕ㸪SiC ⷧ⭷ࢆࢫࣃࢵࢱࢥ࣮ࢸ࢕
ࣥࢢࡋࡓヨ㦂∦ࢆసᡂࡋ㸪SiC ⷧ⭷ࡢࡣࡃ㞳ᙉᗘࢆ࣐࢖ࢡࣟ

ᅗ㸰 ษ๐⏝ࢥ࣮ࢸ࢕ࣥࢢᕤලࡢᚑ᮶ᢏ⾡࠾ࡼࡧ᪂ ᥦ᱌ ᢏ⾡࢚ࢵࢪ࢖ࣥࢹࣥࢺἲࢆ⏝࠸࡚ホ౯ࡋࡓ㸬㸰㸬ᐇ㦂᪉ἲ

Diamond indenter
Į=120㼻
ȡ=0.025mm

ࡓ㸬ࡇࢀ࡟㧗࿘Ἴຍ⇕⿦⨨ࢆ⏝࠸ᅛ⁐໬⇕ฎ⌮ࢆ⾜ࡗࡓ㸬ฎ⌮ᚋ࡟ヨ㦂∦⾲㠃ࢆ◊☻ࡋ㸪㙾㠃࡟௙ୖࡆࡓ㸬ࡑࡢᚋ㸪㧗࿘Ἴ࣐ࢢࢿࢺࣟࣥࢫࣃࢵࢱ⿦

B1

P

X

P
Load P ᮏ◊✲࡟ࡣ㸪㧗㏿ᗘ㗰㸦JIS㸸SKH51㸧ࢆ⏝࠸

(Ϩ)

(ϩ)

P’
Ed

O

O’ h0 O⨨㸦᭱኱ฟຊ 800W㸧ࢆ⏝࠸࡚㸪ࢳࣕࣥࣂ࣮ෆᅽ

5-10ȝmຊࢆ p=5.0Pa ࡟ಖᣢࡋ࡞ࡀࡽࣉࣛࢬ࣐ᨺ㟁ࢆ᪋ࡋ㸪

Displacement hᅗ㸱(a)
࣐࢖ࢡ࢚ࣟࢵࢪ࢖ࣥࢹࣥࢺἲ

B1

Ed
O’ h0

B1

␗࡞ࡿ㧗ࡉ㸪┤ᚄ㸪ᐦᗘࢆࡶࡘ✺㉳≀ࢆᙧᡂࡉࡏ
ࡓ㸬ࣉࣛࢬ࣐ᨺ㟁ᚋ㸪࣊ࣜࢥࣥࢫࣃࢵࢱ⿦⨨㸦᪥ᮏ┿✵ᢏ⾡㸦ᰴ㸧〇㸸MSP-2000-HC-3S2㸧ࢆ⏝࠸࡚ SiC
ⷧ⭷ࢆⷧ⭷ࡢཌࡉࡀ 3Pm ࡟࡞ࡿࡼ࠺࡟ࢥ࣮ࢸ࢕ࣥࢢࢆ᪋ࡋࡓ㸬 ௨ୖ࡛ᚓࡓヨ㦂∦ࢆ⏝࠸࡚㸪SiC ⷧ⭷ࡢࡣࡃ㞳࢚ࢿࣝࢠࢆホ౯ࡍࡿࡓࡵ㸪࣐࢖ࢡ࢚ࣟࢵࢪ࢖ࣥࢹࣥࢺἲࢆ
⏝࠸ࡓ㸬ࡲࡎ㸪㞟᮰࢖࢜ࣥࣅ࣮࣒⿦⨨㸦FIB㸪ࢭ࢖ࢥ࣮࢖ࣥࢫࢶ࣓ࣝࣥࢶ㸦ᰴ㸧〇㸸SMI9200D㸧࡟ࡼࡾ㸪− 71 −

ヨ㦂∦⾲㠃࡟┤⥺⁁ࢆࡘࡅࡓ㸬ḟ࡟㸪ᅗ 3 ࡢࡼ࠺࡟㸪⁁ࡢῡ࠿ࡽᩘPm ࡢ఩⨨࡟෇㗹ᙧࢲ࢖ࣖࣔࣥࢻᅽᏊࢆ
ᢲࡋ㎸ࢇ࡛ⷧ⭷ࢆࡣࡃ㞳ࡉࡏ㸪ࡇࢀ࡟ࡼࡾᚓࡓ᭤⥺࡜ᘧ㸦1㸧ࢆ⏝࠸㸪ࡣࡃ㞳࢚ࢿࣝࢠࢆồࡵࡓ㸬h0h0  B1'

P dh 2ȟS³
         E            u  㸪ȟ  tan                  (1)d0Pdh  ³

1

0

S

2ȧ

x2

㸱㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ㸱㸬㸯 ✀ࠎࡢ᮲௳࡛ᙧᡂࡉࢀࡓ࣡࢖ࣖ≧✺㉳≀ࡢほᐹ ⷧ⭷ࡢࡣࡃ㞳࢚ࢿࣝࢠ࡟࠾ࡼࡰࡍᅉᏊ࡜ࡋ࡚㸪✺㉳≀ࡢ㧗ࡉ㸪┤ᚄ㸪ᐦᗘ㸪࠾ࡼࡧࡤࡽࡘࡁࡀ⪃࠼ࡽࢀࡿ㸬ࡇࢀࡽࢆ⊂❧࡟ኚ໬ࡉࡏ࡚✺㉳≀ࢆᙧᡂࡉࡏࡿࡇ࡜ࡣᅔ㞴࡛࠶ࡿࡢ࡛㸪ࣉࣛࢬ࣐ᨺ㟁᮲௳ࢆ✀ࠎ࡟ኚ໬ࡉࡏ㸪␗࡞ࡿ㧗ࡉ㸪┤ᚄ㸪ᐦᗘ㸪࠾ࡼࡧࡤࡽࡘࡁࢆ᭷ࡍࡿ✺㉳≀ࢆᙧᡂࡉࡏࡓ㸬 ࣉࣛࢬ࣐ᨺ㟁ᚋࡢヨ㦂∦⾲㠃࡟ᙧᡂࡉࢀࡓ࣡࢖ࣖ≧✺㉳≀ࡢᵝᏊࢆほᐹࡍࡿࡓࡵ㸪㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾
㸦SEM㸪᪥❧ࣁ࢖ࢸࢵࢡ㸦ᰴ㸧
㸸S-3000N㸧ࢆ⏝࠸ࡓ㸬ほᐹࡣヨ㦂∦⾲㠃ࡢἲ⥺࡜㟁Ꮚࣅ࣮࣒ࡢ࡞ࡍゅࢆ 45r
࡜ࡋ࡚⾜ࡗࡓ㸬ࡋࡓࡀࡗ࡚࣡࢖ࣖ≧✺㉳≀ࡢ㧗ࡉ h ࡣ㸪SEM ࡛ᚓࡽࢀࡓീࡢ㧗ࡉ h̓࡜ࡍࡿ࡜㸪h=h̓/cos45r
ࡢ㛵ಀࡀ࠶ࡿ㸬 ✀ࠎࡢ᮲௳࡛ヨ㦂ࢆ⾜࠸㸪ᚓࡽࢀࡓ✺㉳≀ࢆᅗ㸲࡟♧ࡍ㸬ᚤ⣽࡞࣡࢖ࣖࢆᙧᡂྍ⬟࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ᅗ㸲 ࢼࣀ࣡࢖ࣖࡢ౛
㸱㸬㸰 ࢫࣃࢵࢱࢥ࣮ࢸ࢕ࣥࢢཬࡧ࣐࢖ࢡ࢚ࣟࢵࢪ࢖ࣥࢹࣥࢺヨ㦂࡟ࡼࡿࡣࡃ㞳ᙉᗘホ౯ᅗ㸳 ࣐࢖ࢡ࢚ࣟࢵࢪ࢖ࣥࢹࣥࢺヨ㦂ࡢᚋࡢヨ㦂∦⾲㠃

− 72 −ᅗ㸴 Ⲵ㔜࣮ኚ఩᭤⥺ ᅗ㸳࡟ࢥ࣮ࢸ࢕ࣥࢢࡢᚋ㸪࣐࢖ࢡ࢚ࣟࢵࢪ࢖ࣥࢹࣥ
ࢺヨ㦂ࢆ⾜࠸㸪ⷧ⭷ࡀࡣࡃ㞳ࡋࡓᵝᏊࢆ♧ࡍ㸬࣡࢖ࣖࡀࢥ࣮ࢸ࢕ࣥࢢ⭷ཌࢆ㉺࠼࡚࠸ࡿࡓࡵ㸪࣡࢖ࣖࡢᙧ≧ࡀ⾲㠃࡟⌧ࢀ࡚࠸ࡿ㸬ᅗ㸴࡟ࡣᅽᏊⲴ㔜 P-ኚ఩᭤⥺ࢆ♧ࡍ㸬᭤⥺࡟ࡣ㸪ⷧ⭷ࡣࡃ㞳࡟ᑐᛂࡋࡓᅽᏊኚ఩ࡢ୙
㐃⥆ቑຍࡀㄆࡵࡽࢀࡿ㸬᭤⥺࠿ࡽồࡵࡓࡣࡃ㞳Ⲵ㔜ࡼࡾ㸪ᘧ㸦1㸧ࢆ⏝࠸࡚ồࡵࡓࡣࡃ㞳࢚ࢿࣝࢠࢆ⦪㍈࡟㸪ᢲ㎸ࡳ఩⨨࠿ࡽ࢚ࢵࢪࡲ࡛ࡢ㊥㞳 x ࢆᶓ㍈࡟࡜ࡗࡓ⤖ᯝࢆᅗ㸵࡟♧ࡍ㸬ࡇࡢᅗ࠿ࡽ㸪ࢼࣀ࣡࢖ࣖࡀẚ㍑ⓗ኱ࡁ࡞ࡣࡃ㞳࢚ࢿࣝࢠࡢ್ࢆ♧ࡍࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ㸬ࡲࡓ㸪ᢲ㎸ࡳ఩⨨࠿ࡽ࢚ࢵࢪࡲ࡛ࡢ㊥㞳ࡀ㐲ࡃ࡞ࡿ࡟ࡘࢀ࡚㸪ࡣࡃ㞳࢚ࢿࣝࢠࡀపୗࡍࡿࡇ࡜࠿ࡽ㸪㊥㞳౫Ꮡᛶࡀ࠶ࡿࡇ࡜ࡶ᫂ࡽ࠿࡟࡞ࡗࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪࢚ࢵ
ࢪࡲ࡛ࡢ㊥㞳ࡀ▷࠸࡜ࡁ࡟ࡣ㸪࣡࢖ࣖࢆᙧᡂࡉࡏ࡚࠸࡞ ᅗ㸵 ᅽᏊᢲ㎸ࡳ఩⨨࡜ࡣࡃ㞳࢚ࢿࣝࢠࡢ㛵ಀ࠸ヨ㦂∦ࡢࡣࡃ㞳࢚ࢿࣝࢠࢆ኱ࡁࡃୖᅇࡗ࡚࠾ࡾ㸪ࢼࣀ࣡࢖ࣖࡣⷧ⭷ࡣࡃ㞳࢚ࢿࣝࢠࢆྥୖࡉࡏࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬 ࡣࡃ㞳ࣉࣟࢭࢫࢆᅗ㸶࡟ᶍᘧⓗ࡟♧ࡍ㸬ࢼࣀ࣡࢖ࣖࡀ㧗ᐦᗘ࡟ᙧᡂࡉࢀࡓ
ሙྜ࣡࢖ࣖࡀⷧ⭷࡟ࡢḞ㝗ࡢ⏝࡟స⏝ࡍࡿࡓࡵ㸪ⷧ⭷ෆࡢࡁ⿣ࡣḞ㝗ࢆ㑅ᢥࡍࡿࡼ࠺࡟ఏࡥࡍࡿ㸬ࡑࡢࡓࡵࡣࡃ㞳㠃✚ࡀ኱ࡁࡃ࡞ࡾ㸪ᘧ(1)ෆࡢศẕࡀ኱ࡁࡃ࡞ࡾ㸪ࡣࡃ㞳࢚ࢿࣝࢠࡀぢ࠿ࡅୖῶᑡࡍࡿ㸬ᅗ㸶 ᅽᏊᢲ㎸ࡳ఩⨨࡜ࡣࡃ㞳࢚ࢿࣝࢠࡢ㛵ಀ㸲㸬⤖ゝ ࣉࣛࢬ࣐ᨺ㟁᮲௳ࢆ✀ࠎ࡟ኚ࠼ࡿࡇ࡜࡟ࡼࡾᇶᯈ⾲㠃࡟ᙧᡂࡉࢀࡿ✺㉳≀ࡢ㧗ࡉ㸪┤ᚄ㸪ᐦᗘ࠾ࡼࡧࡤࡽ
ࡘࡁࢆኚ໬ࡉࡏࡿࡇ࡜ࡀ࡛ࡁ㸪ᙧ≧ࡢ␗࡞ࡿ✺㉳≀ࢆᙧᡂࡉࡏࡿࡇ࡜ࡀ࡛ࡁࡓ㸬ᙧᡂࡉࢀࡓࢼࣀ࣭࣐࢖ࢡࣟ
࣡࢖ࣖ≧✺㉳≀ࡣ㸪㧗ࡉࡢࡤࡽࡘࡁࡀ኱ࡁࡃ㸪┤ᚄࡢࡤࡽࡘࡁࡣᑠࡉ࠸㸬ࡲࡓ㸪ࢼࣀ࣡࢖ࣖ≧✺㉳≀ࡢࡣࡃ㞳࢚ࢿࣝࢠࡣ㸪࢚ࢵࢪ࠿ࡽࡢ㊥㞳࡟౫Ꮡࡍࡿࡀ㸪࢚ࢵࢪ࠿ࡽࡢ㊥㞳ࡀ▷࠸࡜ࡁ࡟ࡣ㸪ࢼࣀ࣡࢖ࣖࢆᙧᡂࡉࡏ
࡞࠸ヨ㦂∦ࡢࡣࡃ㞳࢚ࢿࣝࢠࢆୖᅇࡿ㸬(ඹྠ◊✲ศ㔝㸸⎔ቃㄪ࿴ࣉࣟࢭࢫᏛศ㔝)− 73 −

ᚠ⎔ᆺ♫఍ᙧᡂ࡜⎔ቃㄪ࿴ᢏ⾡ࣅࢪࣙࣥ࡟㛵ࡍࡿ◊✲ லᮎ࡞࢚ࢿࣝࢠ࣮※ࢆ฼⏝ࡋࡓ࢚ࢿࣝࢠ࣮ࣁ࣮࣋ࢫࢸ࢕ࣥࢢ
ᮾிᕤᴗ኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉ᅜ㝿㛤ⓎᕤᏛᑓᨷ  㧗 ᶫ 㑥 ኵ㸯㸬⫼ᬒ࣓࢞ࢯ࣮࣮ࣛⓎ㟁ࡸ࣓࢞㢼ຊⓎ㟁࡞࡝㸪኱つᶍ࡞⎔ቃⓎ㟁ࡣ㸪ᗈ࠸ᅵᆅࡢ☜ಖࡀᚲせ࡜࡞ࡿࠋ≉࡟ᆅ౯ࡀ㠀ᖖ࡟㧗࠸᪥ᮏ➼ࡢᅜ࡟࠾࠸࡚ࡣ㸪Ⓨ㟁ࢥࢫࢺࢆ኱ࡁࡃୖࡆ࡚࠸ࡿࠋ㌟ࡢᅇࡾࡢலᮎ࡞࢚ࢿ
ࣝࢠ࣮※ࢆ฼⏝ࡍࡿࡇ࡜࡛ᅵᆅ௦ࡢ࠿࠿ࡽ࡞࠸Ⓨ㟁ࡀྍ⬟࡜࡞ࡿࠋ౛࠼ࡤ㸪㸯ୡᖏ࡛ᩘ࣡ࢵࢺࡢฟ
ຊࢆฟࡏࡿ⡆᫆࡞⿦⨨ࡀ 1000 ୓ୡᖏ࡟ᬑཬࡍࢀࡤ㸪ᩘ༑࣓࢞࣡ࢵࢺࡢⓎ㟁ᡤࢆ㸯ࡘタ⨨ࡋࡓࡇ࡜࡜ྠࡌ࡟࡞ࡿࠋࡇࡢࡼ࠺࡞⡆᫆࡞⿦⨨ࡣ㸪㞳ᓥࡸ⿕⅏ᆅ࡟ࡶᙺ❧ࡕ㸪ࡲࡓ㸪㟁ຊ※ࡢ☜ಖࡢ㞴ࡋ࠸⮬❧ィࢩࢫࢸ࣒⥙ࡢᵓ⠏࡟ࡶᙺ❧ࡘࠋ㸰㸬᭱኱ฟຊⅬ㏣ᚑ࡜ࡑࡢホ౯ኴ㝧㟁ụ㸪⇕㟁⣲Ꮚ㸪ᑠᆺ㢼㌴࡞࡝㸪㌟ࡢᅇࡾࡢலᮎ࡞࢚ࢿࣝࢠ࣮※࠿ࡽ࢚ࢿࣝࢠ࣮ࢆྲྀࡾฟࡍ㝿㸪
᭱኱ฟຊⅬࢆ㏣ᚑࡍࡿไᚚࡀ㔜せ࡟࡞ࡿࠋኴ㝧㟁ụࢆ┤᥋㸪඘㟁㟁ụ࡟ࡘ࡞࠸࡛ࡶ㸪࢚ࢿࣝࢠ࣮ຠ
⋡ࡣ㸯㸣࡟ࡶ‶ࡓ࡞࠸ሙྜࡶ࠶ࡿࠋ࢚ࢿࣝࢠ࣮ࣁ࣮࣋ࢫࢸ࢕ࣥࢢ࡛ࡶ㸪኱つᶍ࡞Ⓨ㟁タഛࡢሙྜࡣ㸪⥲㟁ຊ࡟వ⿱ࡀ࠶ࡿࡓࡵ㸪ࡑࡢ㟁ຊ࡛ไᚚ⏝ࡢࣃࢯࢥࣥࢆ㸯ྎᩘ༑㹕⛬ᗘ࡛ື࠿ࡋ࡚ࡶ㸪༑ศⓎ㟁ࡢព࿡ࡀ࠶ࡿࡀ㸪㌟ࡢᅇࡾࡢலᮎ࡞࢚ࢿࣝࢠ࣮※ࢆື࠿ࡍሙྜࡣ㸪ไᚚ⏝ࡢࣃࢯࢥࣥࡢ㟁ຊࢆ༑ศ࡟ୖᅇࡿฟຊࡢつᶍࡀ↓࠸㝈ࡾព࿡ࡀ࡞ࡃ㸪⤖ᯝⓗ࡟኱つᶍ࡞Ⓨ㟁タഛࡀᚲせ࡜࡞ࡗ࡚ࡋࡲ࠺ࠋல
ᮎ࡞࢚ࢿࣝࢠ࣮※ࢆࡶࡕ࠸ࡓ࢚ࢿࣝࢠ࣮ࣁ࣮࣋ࢫࢸ࢕ࣥࢢࡣ㸪ሙᡤࢆ࡜ࡽ࡞࠸ᑠつᶍタഛࢆ㸪ከᩘ✌ാࡉࡏࡿࡇ࡜࡟ព࿡ࡀ࠶ࡿࠋᮏ◊✲࡛⏝࠸ࡓ࢚ࢿࣝࢠ࣮ຠ⋡ࡣ㸪Ⓨ㟁⣲Ꮚࢆ᭱኱ฟຊⅬ࡛㐃⥆ⓗ࡟✌ാࡉࡏࡓሙྜࢆ㸯㸮㸮㸣࡜ࡋࡓ್࡛࠶ࡿࠋ౛࠼ࡤ㸪ኴ㝧㟁ụࡢሙྜࡣᅗ㸯ࡢ MPP Ⅼ࡟࠾ࡅࡿฟຊࢆ㸯㸮㸮㸣࡜ࡋ࡚࠸ࡿࠋ
㸱㸬Ⓨ㟁ࢹࣂ࢖ࢫࡢ㟁※≉ᛶࢆ⪃៖ࡋࡓไᚚ
Ⓨ㟁ࢹࣂ࢖ࢫࡢฟຊࢆ඘㟁㟁ụࡸ࢟ࣕࣃࢩࢱ࣮➼ࡢ⵳㟁ࢹࣂ࢖ࢫ࡟⵳࠼ࡿሙྜ㸪᪼ᅽᅇ㊰➼㟁ᅽࢥࣥࣂ࣮ࢱ࣮ࢆ⏝࠸ࡿࡀ㸪ࡑࡢࢥࣥࣂ࣮ࢱ࣮ࡢไᚚ࡟ࡼࡗ࡚ MPP ࢆ㏣ᚑࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋไᚚ࡟
࠶ࡓࡗ࡚ࡣ㸪Ⓨ㟁ࢹࣂ࢖ࢫࡢ㟁※≉ᛶࢆ⪃៖ࡍࡿࡇ࡜ࡀ㔜せ࡟࡞ࡿࠋࢫ࢖ࢵࢳࣥࢢࣞࢠ࣮ࣗࣞࢱ࣮ᅇ㊰࡛᪼ᅽࡍࡿሙྜ㸪⇕㟁⣲Ꮚࢆ⏝࠸ࡿሙྜ࡜ኴ㝧㟁ụࢆ⏝࠸ࡿሙྜ࡜࡛ࡣไᚚࡢ㔜せᛶࡀ␗࡞ࡿࠋ
⇕㟁⣲Ꮚࡢሙྜ㸦ᅗ㸰ཧ↷㸧ࡣ㸪ኴ㝧㟁ụࡢሙྜ㸦ᅗ㸯ཧ↷㸧࡟ࡃࡽ࡭㸪⎔ቃኚ໬࡟ࡼࡿฟຊኚື
࡟ᑐࡍࡿ MPP ㏣ᚑࡢ㝿ࡢ㟁ᅽኚ໬ࡀ኱ࡁ࠸ࡢ࡛㸪ไᚚࡣࡼࡾ㔜せ࡟࡞ࡿࠋࡉࡽ࡟㸪㢼㌴࡜ㄏᑟⓎ㟁ᶵ࡛Ⓨ㟁ࡍࡿሙྜࡣ㸪Ⓨ㟁ࢹࣂ࢖ࢫഃ࡟」⣲ᡂศࡢ࢖ࣥࣆ࣮ࢲࣥࢫࢆᣢࡘࡓࡵ㸪ࡑࢀࢆ⪃៖ࡋࡓࢥࣥࣂ࣮ࢱ࣮ᅇ㊰タィ࡜ไᚚࡀᚲせ࡟࡞ࡿࠋ㸲㸬㟁ᅽࢥࣥࣂ࣮ࢱ࣮࡜ࡑࡢไᚚࡢ౛
᭱ᚋ࡟㸪ᑠつᶍタഛ࡟ࡼࡿⓎ㟁ࡢ౛࡜ࡋ࡚ὸぢ࡟ࡼࡿ᪼ᅽᅇ㊰ࡢ౛ࢆᅗ㸱࠾ࡼࡧ㸲࡟♧ࡍࠋไᚚ࡟
ࡣ PIC ࢆ⏝࠸ࡿࡇ࡜࡛㸪ไᚚ⏝ࡢᾘ㈝㟁ຊࡣ 1W ᮍ‶࡟ᢚ࠼ࡽࢀ࡚࠸ࡿࠋ⤖ᯝⓗ࡟ᩘ༑ cm ᅄ᪉ࡢ㠃✚࡛ᩘ W ࡢⓎ㟁ࡀྍ⬟࡟࡞ࡗ࡚࠸ࡿࠋࡉࡽ࡟㸪ࣉࣟࢢ࣐ࣛࣈࣝ࡞ࡢ࡛ᵝࠎ࡞ࢹࣂ࢖ࢫ࡟ᑐᛂ࡛
ࡁ㸪MPP ㏣ᚑࡢຠᯝࡣ㸪⇕㟁⣲Ꮚࡢሙྜ࡟ࡼࡾ᭷ຠ࡛࠶ࡿࡇ࡜ࡶ☜ㄆ࡛ࡁ࡚࠸ࡿࠋ

− 74 −ཧ⪃ᩥ⊩[1] ὸぢ❧ᚿ㸪࢚ࢿࣝࢠ࣮ࣁ࣮࣋ࢫࢸ࢕ࣥࢢ⏝⮬ᚊᆺ᪼ᅽࢥࣥࣂ࣮ࢱࡢヨస㸪ᮾᕤᏛಟㄽ 2014

MPP: PMP=IMPVMP

1 P.S. i-v characteristics

Voltage

Voltage

VOC
VMP

0

IMP ISC
Current

v=2VMP-RMPi
VMP

0around MPP

IMPCurrent ᅗ㸯 ኴ㝧㟁ụࡢ㟁※≉ᛶ࡜᭱኱ฟຊⅬ[1]  ᅗ㸰 ⇕㟁⣲Ꮚࡢ㟁※≉ᛶ࡜᭱኱ฟຊⅬ[1]ᅗ㸱 PIC ࡟ࡼࡿ MPP ㏣ᚑᆺ᪼ᅽࢥࣥࣂ࣮ࢱ࣮ࢆ⏝࠸ࡓ⇕㟁⣲Ꮚไᚚࡢ౛ [1]ᅗ㸲 ྠࡌࢥࣥࣂ࣮ࢱ࣮ᅇ㊰࡟ࡼࡿኴ㝧㟁ụไᚚᅇ㊰ࡢ౛㸦ඹྠ◊✲ศ㔝㸸⎔ቃㄪ࿴ࣉࣟࢭࢫᏛศ㔝㸧− 75 −

ᅛ┦᥋ྜࣉࣟࢭࢫࡢ⇕ゎᯒ࡜᭱㐺໬ࡢࡓࡵࡢ⡆᫆ゎᯒࢶ࣮ࣝࡢ㛤Ⓨ⇃ᮏ኱Ꮫ ኱Ꮫ㝔⮬↛⛉Ꮫ◊✲⛉ ⏘ᴗ๰㐀ᕤᏛᑓᨷᐩ ᮧ ᑑ ኵ㸯㸬┠ⓗᅛ┦᥋ྜࣉࣟࢭࢫ࡟࠾࠸࡚ࡣ㸪ᮦᩱࡢ≀ᛶࡸ᥋ྜᮦᩱ㛫ࡢ᥋ゐ⇕᢬ᢠ࡞࡝ࡢㅖᅉᏊ࡟㉳ᅉࡍࡿ」㞧࡞㠀ᐃᖖ⇕⛣ືࡀ⏕ࡌ㸪᥋ྜ⤖ᯝ࡟኱ࡁ࡞ᙳ㡪ࢆཬࡰࡍࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ㸪᥋ྜ⏺㠃ࡢ⇕⛣ື⌧㇟ࡣ」㞧
࡛࠶ࡾ㸪ࡑࡢఏ⇕࣓࢝ࢽࢬ࣒ࡣᚲࡎࡋࡶ᫂☜࡟ࡣࡉࢀ࡚࠸࡞࠸㸬᪤ሗ [1] ࡛ࡣ㸪≉࡟⌧ሙ࡛ࣞ࣋ࣝࡢ㸪ࡇࡢࡼ࠺࡞」㞧࡞⌧㇟ࡢ⡆᫆⇕ゎᯒࡢᐇ⌧ࢆ┠ᣦࡋ㸪ࣉࣟࢢ࣑ࣛࣥ
ࢢ▱㆑ࢆᚲせ࡜ࡋ࡞࠸㸪Excel ࡢ⾲ィ⟬ᶵ⬟ࢆ฼⏝ࡋࡓゎᯒࢶ࣮ࣝࡢᑟධྍ⬟ᛶࢆ♧ࡋࡓ㸬⥆࠸࡚㸪๓ሗ [2]࡛ࡣ㸪ᮦᩱࡢ᥋ྜ⏺㠃࡟࠾ࡅࡿ⇕⛣ືࣉࣟࢭࢫࢆゎ᫂ࡍࡿୖ࡛᭱ࡶ㔜せ࡜⪃࠼ࡽࢀࡿ᥋ゐ⇕᢬ᢠ࡟ࡘ࠸᳨࡚
ウࡋ㸪⢒ࡉࢆ᭷ࡍࡿᖹ㠃㛫ࡢ᥋ゐࣔࢹࣝ࡞ࡽࡧ࡟ฝ㠃㛫ࡢ᥋ゐࣔࢹࣝ࡟ᇶ࡙ࡃゎᯒ⤖ᯝ࠿ࡽ㸪᥋ྜ㠃࡟Ꮡᅾࡍࡿ࣐ࢡࣟ࡞࠺ࡡࡾᡂศࡢ㐺ษ࡞ホ౯ࡀ㔜せ࡛࠶ࡿࡇ࡜ࢆ♧ࡋࡓ㸬ࡇࡇ࡛ࡣ㸪᪤ሗ [1] ࡞ࡽࡧ࡟๓ሗ [2] ࡛ᚓࡽࢀࡓᡂᯝ࡟ᇶ࡙ࡁ㸪᥋ゐ㠃࡟࣐ࢡࣟ࡞㛫㝽࡜࣑ࢡࣟ࡞⢒ࡉࢆ᭷ࡍࡿ෇ᯈ≧ᅛయ㛫ࡢ㠀ᐃᖖ⇕ఏᑟၥ㢟ࢆලయ౛࡜ࡋ࡚㸪Excel ࡢ⾲ィ⟬ᶵ⬟࡜⡆༢࡞࣐ࢡࣟࢆ⤌ࡳྜࢃࡏࡓ⡆᫆⇕ゎᯒࢶ࣮ࣝࡢ㛤Ⓨ᪉ἲ࡟ࡘ࠸᳨࡚ウࡋࡓ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿ㸬㸰㸬≀⌮ࣔࢹࣝ࠾ࡼࡧᇶ♏᪉⛬ᘧ㸰㸫㸯㸬≀⌮ࣔࢹࣝᅗ 1 ࡟㸪⣔඲యࡢ≀⌮ࣔࢹࣝ࡜ᗙᶆ⣔ࢆ♧ࡍ㸬 ᗘ Tfࡢ࿘ᅖ✵Ẽ࡜⇕ᖹ⾮≧ែ࡟࠶ࡿ㸪༙ᚄ ro㸪ཌࡉ b1㸪
⇕ఏᑟ⋡O1㸪ẚ⇕ c1㸪ᐦᗘU1㸪ࣈࣜࢿࣝ࠶ࡿ࠸ࡣࣅࢵ࣮࢝ࢫ◳ࡉ H1 ࡢ෇ᯈ 1 ࡀ㸪Ⲵ㔜 f ࡢࡶ࡜࡛㸪༙ᚄ ro㸪ཌࡉ b2㸪⇕ఏᑟ⋡O2㸪ẚ⇕ c2㸪ᐦᗘU2㸪ࣈࣜࢿࣝ࠶ࡿ࠸ࡣࣅࢵ࣮࢝ࢫ◳ࡉ H2 ࡢ෇ᯈ 2 ࡜᥋ゐࡋ࡚࠸ࡿ㸬ࡇࡢ≧ែ࡛㸪෇ᯈ 1 ࡢᕥ㠃ࡀ⇕㔞 Q ࡛ࢫࢸࢵࣉⓗ࡟ຍ⇕ࡉࢀࡿ࡜࡜ࡶ࡟㸪ṧࡾࡢ㠃ࡣ࿘ᅖ ᗘ Tf࡟ಖࡓࢀࡓሙྜ
࡟ࡘ࠸࡚㸪⣔ࡢ㠀ᐃᖖ ᗘኚ໬ࢆ Excel ࡢ⾲ィ⟬ᶵ⬟ࢆ⏝࠸࡚ᩘ್ゎᯒࡍࡿ㸬ᅗ୰ࡢᣑ኱ᅗ࡟♧ࡍࡼ࠺࡟㸪᥋ゐ㠃࡟࠾࠸࡚㸪෇ᯈ 1㸪2 ࡢ༙ᚄ rci ෆ࡛ࡣ㸪࣑ࢡࣟ࡞⢒ࡉࢆ௓ࡋࡓᅛయ⾲㠃㛫ࡢ᥋ゐࡀ⏕ࡌ࡚࠾ࡾ㸪ࡇࡢ㠃࡛ࡢ᥋ゐ⇕ࢥࣥࢲࢡࢱࣥࢫ hci ࡣḟᘧ [3] ࡛୚࠼ࡽࢀࡿ㸬

hci

Ȝf §
pci
p ·
1
¨¨1  ci ¸¸H min ¹
į1  į 2 ©
§1
į1
1 · į H
 2.3 u 10 5 ¨¨  ¸¸  2 min
Ȝ1© Ȝ1 Ȝ 2 ¹ Ȝ 2(1)ࡇࡇ࡛㸪G1 (=4Ra1)㸪G2 (=4Ra2) ࡣ⢒ࡉ㧗ࡉ㸪Ra1㸪Ra2 ࡣ୰ᚰ⥺ᖹᆒ⢒ࡉ,pci ࡣⲴ㔜 f ࢆぢ᥃ࡅࡢ᥋ゐ㠃✚Srci2
࡛㝖ࡋࡓᖹᆒ᥋ゐᅽຊ㸪Hmin = Min(H1, H2) ࡛࠶ࡿ㸬୍᪉㸪༙ᚄ rci ࡢእഃ࡛ࡣ㸪࣐ࢡࣟ࡞㛫㝽㧗ࡉ'1㸪'2㸪⇕ఏᑟ⋡Of ࡢ✵Ẽᒙࢆ௓ࡋࡓ⇕⛣ືࡀ⏕ࡌ࡚࠾ࡾ㸪ࡇࡢ㛫㝽㛫࡛ࡢ᥋ゐ⇕ࢥࣥࢲࢡࢱࣥࢫࡣḟᘧ࡛୚࠼ࡽࢀࡿ㸬
r
Tf
Ȝf
hs
(2)
Analysis domain'1  ' 2
O1
O2
ro㸰㸫㸰㸬ᇶ♏᪉⛬ᘧ ᅗ 1 ࡢ⣔ࡣ㍈ᑐ⛠࡛࠶ࡿࡇ࡜࠿ࡽ㸪◚⥺࡛ᅖࢇࡔ㡿ᇦ࡟㛵ࡋ㸪ḟᘧࡢ㠀ᐃᖖ 2 ḟඖ෇ᰕᗙᶆ⣔ࡢ⇕ఏᑟ᪉⛬ᘧࢆ㐺⏝ࡍࡿ㸬wTwt§ w 2T 1 wT w 2T ·¸ ࡇࡇ࡛㸪 ĮĮ ¨¨ 2 r wr wz 2 ¸¹© wr

Ȝ( ᗘఏᑟ⋡) (3)
cȡ

0 Q

rci

f
U1 c1
H1
'1

U2 c2
H2

'2

'1

Tf

Of

z

G1 G2

pci
Ra1

Ra2

'2

b1

b2

Disc 1Disc 2

Enlarged sectional viewof contact interface

ᅗ 1 ≀⌮ࣔࢹࣝ࡜ᗙᶆ⣔− 76 −

T k+1i+1, j
T k+1i, j-1

T k+1i, j

T1 k+1l, 0r [i-direction]
T1 k+1l, j T1 k+1l, m

T k+1i, j+1

T2 k+1i, m T2 k+1l, j

T2 k+1l, m+n

Solid 1

Contact interface

Solid 2

Contact interface

t [k-direction]

T k+1i-1, j

T1 k+1i, 0't

T1 k+1i, m-1

T1 k+1i, j T1 k+1i, m
T2 k+1i, m T2 k+1i, j

r [i-direction]

T ki, j
'z
'r

'r
ri

Disc 1Disc 2

T1 k+10, 0'b1
z [j-direction]

T1 k+10, j T1 k+10, m
T2 k+10, m

T2 k+10, j

T2 k+10, m+nᅗ 2 ᱁ᏊⅬࡢ㛵ಀ (㠀ᐃᖖ)   ᅗ 3 ゎᯒ㡿ᇦࡢ᱁ᏊⅬ㓄⨨....

T2 k+1i, m+1

O2
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b1

0

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or
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O1

'z

z [j-direction]0

T2 k+1i, m+n

T1 k+1i, m

b1 + ('1+'2)
orb1 + (G1+G2)z ᅗ 4 ᥋ゐ㠃ࡢᵓ㐀࡜᱁ᏊⅬ㓄⨨ ᅗ 5 ᫬⣔ิ࡟ᑐᛂࡋࡓ
࣮࣡ࢡࢩ࣮ࢺࡢ㓄ิ౛ ᅗ 2 ࢆཧ↷ࡋ㸪ୖᘧ࡟᏶඲㝜ゎἲࢆ㐺⏝ࡋ࡚ᕪศ໬ࡍࡿ࡜㸪ḟᘧࡀᚓࡽࢀࡿ㸬Ti ,k j 1ª§ 'r · k
§ 'r · k 1 º¸¸ Ti1, j  ¨¨1 ¸¸ Ti 1, j »  c z Ti ,k j 11  Ti ,k j 11  Ti ,k j
cr «¨¨1 
r
r
2
2
i ¹
i ¹
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1  2cr  2c zࡇࡇ࡛㸪 cr

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㸪 cz
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       
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(4)

ୖᘧ࡛㸪ῧ࠼Ꮠ i ࠾ࡼࡧ j ࡣ r㸪z ᪉ྥࡢ᱁ᏊⅬ␒ྕࢆ㸪ࡲࡓ kࡣ᫬㛫ࢫࢸࢵࣉࢆ⾲ࡍ㸬ᅗ 6 ཯᚟ィ⟬⏝࣐ࢡࣟࡢసᡂ౛

㸱㸬Excel ࡜࣐ࢡࣟࢆᑟධࡋࡓ⡆᫆⇕ゎᯒࢶ࣮ࣝࡢ㛤Ⓨ౛ ቃ⏺᮲௳࡞ࡽࡧ࡟෇ᯈ 1 ࡜෇ᯈ 2 ࡜ࡢ㛫ࡢ᥋ゐ㠃࡛ࡢ㐺ྜ᮲௳࡟㛵ࡋ࡚ࡣ㸪ᅗ 3 ࡜ᅗ 4 ࢆཧ↷ࡋ㸪ྛⅬࡢᕪศᘧࢆᑟฟࡋࡓ㸬࡞࠾㸪ᅗ୰ࡢྛ᱁ᏊⅬ ᗘࡢῧ࠼Ꮠ l㸪m㸪n ࡣ㸪ࡑࢀࡒࢀ㸪ro㸪b1㸪b2 ࡢศ๭ᩘ࡛࠶ࡿ㸬 ᅗ 5 ࡟㸪᪤ሗ [1] ࡛♧ࡋࡓ㸪」ᩘࡢ࣮࣡ࢡࢩ࣮ࢺࢆ᫬⣔ิ࡟ᑐᛂࡉࡏࡓ㓄ิ᪉ἲࡢ౛ࢆ♧ࡍ㸬”P” ࡣゎᯒࣃ࣓࣮ࣛࢱ⏝㸪”T(0)” ࡣึᮇ᮲௳⏝㸪”T(1)” ௨㝆ࡣྛ᫬้࡟࠾ࡅࡿ⣔ࡢ ᗘศᕸゎᯒ⏝ࡢࢩ࣮ࢺ࡛࠶ࡿ㸬 ᅗ 6 ࡟㸪཯᚟ィ⟬⏝࣐ࢡࣟࡢసᡂ౛ࢆ♧ࡍ㸬ࣃ࣓࣮ࣛࢱ⏝ࢩ࣮ࢺ ”P” ࡞ࡽࡧ࡟ึᮇ᮲௳⏝ࢩ࣮ࢺ ”T(0)” ࡢྛࢭࣝ࡟ධຊࡉࢀࡓᩘ್ࢆ⤯ᑐཧ↷ࡋ㸪➨୍᫬㛫ࢫࢸࢵࣉࡢᩘ್ゎᯒࢩ࣮ࢺ “T(1)” ࢆసᡂࡍࡿࣉࣟࢭࢫࢆ
࣐ࢡ࡛ࣟグ㘓ࡋࡓࡢࡕ㸪ࡉࡽ࡟ VBA ࢆ⏝࠸㸪ᮏゎᯒ┠ⓗ࡟ἢ࠺ᙧᘧ࡟࢝ࢫࢱ࣐࢖ࢬࡋࡓ౛࡛࠶ࡿ㸬㸲㸬⤖ㄽ
෇ᯈ≧ᅛయ㛫ࡢ㠀ᐃᖖ⇕ఏᑟၥ㢟ࢆලయ౛࡜ࡋ࡚㸪Excel ࡢ⾲ィ⟬ᶵ⬟࡜⡆༢࡞࣐ࢡࣟࢆ⤌ࡳྜࢃࡏࡓ⡆᫆⇕ゎᯒࢶ࣮ࣝࡢ㛤Ⓨ౛ࢆ♧ࡋࡓ㸬㸳㸬ཧ⪃ᩥ⊩[1] ᐩᮧᑑኵ㸪኱㜰኱Ꮫ ᥋ྜ⛉Ꮫඹྠ฼⏝࣭ඹྠ◊✲ᣐⅬ ඹྠ◊✲ሗ࿌᭩㸪(2012)㸪pp. 86-87.
[2] ᐩᮧᑑኵ㸪኱㜰኱Ꮫ ᥋ྜ⛉Ꮫඹྠ฼⏝࣭ඹྠ◊✲ᣐⅬ ඹྠ◊✲ሗ࿌᭩㸪(2013)㸪pp. 75-76.
[3] బ㔝ᕝ ዲẕ㸪᪥ᮏᶵᲔᏛ఍ㄽᩥ㞟㸪33-251 (1967), pp. 1097-1107.
ඹྠ◊✲ศ㔝⎔ቃㄪ࿴ࣉࣟࢭࢫᏛศ㔝 − 77 −

High-order Mode suppression Technique with Via-holes on THz Grounded CPW Line on Si Substrate
Electrical and Electronics Engineering
Graduate School of Science and Engineering
Kagoshima University
Kenjiro Nishikawa
Abstract Recently, terahertz (THz) frequency band has been focused and investigated for developing new applications,such as an ultra-high-speed wireless system, an imaging system, space applications, and so on. These systems
have demanded a highly integrated and compact IC, such as CMOS ICs. This paper proposes a novel grounded
coplanar line (CPW) on Si substrate to realize the highly integrated THz ICs. The paper clarifies and analyzes
high-order transmission modes on the proposed grounded CPW. The high-order mode suppression technique isalso demonstrated. The proposed structure achieves 20 dB higher suppression of the high-order modetransmission than that of the normal CPW structure. The result indicates the applicable frequency range of the
CPW line is expanded to 1.5 THz.
Keywords: Terahertz (THz), Via-hole, Grounded Coplanar waveguide (CPW), High-order Mode
Introduction
Use of a terahertz (THz) frequency band has been strongly demanded to create new applications such as
ultrahigh-speed wireless communication, imaging, sensing, and spectroscopy, and so on[1]. To expand the THz band
applications, highly integrated and compact ICs and modules are significant components. However, transmission loss
on substrate is huge in THz band. The transmission loss is caused by conductor loss, dielectric loss, radiation, andhigh-order mode transmissions. This paper focuses on the loss characteristics depended on the high-order modetransmissions.
Fig.1 illustrates the primary transmission modes of the grounded CPW line[2]. Arrows drawn in Fig. 1 indicate
directions of electrical flux lines. As the transmission signal frequency becomes higher, the potential of ground will rise
and this will cause generating of high-order mode. To suppress the above matter, this paper proposes a grounded CPWline with vias. This structure will effectively suppress the high-order mode transmissions[3]. Generation of many
modes causes coupling phenomena, hence, a fundamental mode becomes difficult to be transmitted[4]. The
investigation was carried out by using the commercial electromagnetic field simulator (Keysight EMPro).
Proposed CPW structure
Fig. 2 shows the proposed grounded CPW Line with vias located along the edge of the surface ground planes. Fig. 2(b) shows the corresponding cross sectional view. Simulation model consists of Si substrate, 0.5ȝm thick conductor,
and 1ȝm thick SiO2 dielectric layer. Line length of the model was designed with Ȝ/4, and vias were installed in the pairon both sides of equal intervals. The via used here was a rectangle parallelepiped 1ȝm square. It analyzed about
1.9THz from 100GHz. Line width and spacing of the grounded CPW line were designed to be a characteristic
impedance of 50 ohm on the fundamental transmission mode.
Simulation
Fig.3 and Fig. 4 exhibit the simulation results of the transmission modes of Fig.2(b) and (c), respectively. The “via1,
via2, via3…” mean that one pair of via, two pairs of vias, three pairs of vias, and so on are located on the simulated
CPW line. The “non-via” plots the calculated transmission coefficients of the normal grounded CPW structure. The
high-order mode transmission coefficients, S21 decrease as increasing the number of via-holes. While the high-ordermode transmission coefficients, S11 increase as increasing the number of via-holes. In case of the “via5”, the frequency
to realize less than -20 dB of S21 is 1.5 THz, while the frequency on the “non-via” case is 200 GHz. In addition, on all
simulated frequency range, the high-order mode transmissions of the “via5” structure are suppressed more than 20 dB
comparing with those of the “non-via” structure.
Fig.5 shows simulated electromagnetic transmission images of the “via5” and non-via” structures at 200 GHz and
1.5 THz. The images clearly indicate the “via5” structure realizes to the fundamental mode transmission at both 200
GHz and 1.5 THz. The “non-via”, normal CPW line can transmit the fundamental mode at 200 GHz, while at 1.5 THz− 78 −

the transmission is complex and its electric field looks strong at the left size of the grounded conductor. These results
indicate the proposed structure effectively suppresses the high-order mode transmissions and expands the operating
frequency of the CPW, more than 1.5 THz.
Conclusion
The paper proposed and analyzed the structure of the grounded CPW with vias to suppress the high-order modetransmissions. The proposed technique achieves more than 20dB suppression of a high-order mode transmission,comparing with those of the normal CPW structure, resulting in THz-band operation of the CPW line.
References[1] 2013 IEEE MTT-S IMS Workshop, WMD: Technologies for THz Integrated System. Seattle WA, June 2013.
[2] Gunter Kompa, Practical Microstrip Design and Application, ARTECH HOUSE,INC, 685 Canton Street,2005.
[3] Takashi SHIMIUZU, Yoshinori KOGAMI, Hiroshi NAKANO, and Yasutake HIRACHI, “Study of effect of
unwanted transmission modes in millimeter-wave CPW MMIC using 3D EM simulator,” IEICE Technical Report, vol.
108, pp. 73-78, Nov 2008 (in Japanese)[4] Wolfgang Heinrich, Frank Schnieder and Thorsten Tischler, “Dispersion and radiation characteristics ofconductor-backed CPW with finite ground width,” Microwave Symposium Digest.2000 IEEE MTT-S International,
pp.1663-1666, vol.3, June 2000

(a) Fundamental mode(b) High-order mode1(parallel plate mode)(c) High-order mode2 (slot line mode)

Fig.1 Transmission modes
Via-hole

Si Substrate

SiO2(a) Simulation structureVia-hole(b) Transmission coefficient S21(a) Transmission coefficient S11
Fig.3 Transmission characteristics of High-order-mode1(b) Cross sectional viewFig.2 Grounded CPW Line with
via-holeNonͲviaVia5(a) Transmission coefficient S11(b) Transmission coefficient S21
Fig.4 Transmission characteristics of High-order mode2(a). 200GHz
NonͲviaVia5(b). 1.5THz

Fig. 5 EM images

㸦ඹྠ◊✲ศ㔝㸸⎔ቃㄪ࿴ࣉࣟࢭࢫᏛศ㔝㸧− 79 −

཮࣮ࣟࣝ࢟ࣕࢫࢱ࣮࡟ࡼࡿࢡࣛࢵࢻᮦࡢస〇࡟㛵ࡍࡿ◊✲኱㜰ᕤᴗ኱ᏛᕤᏛ㒊 ⩚㈡ಇ㞝኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ 㧗ᶫᗣኵ㸯㸬┠ⓗࢡࣛࢵࢻᯈࡢస〇ࡣᕤ⛬ᩘࡀከ࠸ࡢ࡛㸪཮࣮ࣟࣝ࢟ࣕࢫࢱ࣮ࡢ⁐‫ࡽ࠿‮‬㸯ᕤ⛬࡛ᯈࡢస〇ࡀྍ⬟࡛࠶ࡿ࡜࠸࠺┬ᕤ⛬࣭┬࢚ࢿࣝࢠ࣮ࡢ฼Ⅼࢆ㸪ࢡࣛࢵࢻᮦࡢస〇࡛ࡣ᭱ࡶⓎ᥹࡛ࡁࡿ㸬ࢡࣛࢵࢻᮦࡢస〇ࡀྍ⬟࡞཮࣮ࣟࣝ࢟ࣕࢫࢱ࣮ࢆ㛤Ⓨࡋ㸪ࡑࡢస〇᮲௳ࡸ≉ᛶ࡟ࡘ࠸࡚ㄪᰝࡋ࡚ࡁࡓ 1)㸬┠ⓗ࡟ࡼࡾ㸪⾲ᮦࡢᮦ㉁ࢆ␗࡞
ࡿࡶࡢ࡟ࡍࡿせồࡶ࠶ࡿ㸬ࡇࡢሙྜ㸪2 ✀㢮㸦2 ᒙ㸧ࡢ⾲ᮦࡢจᅛ ᗘ⠊ᅖࡀ␗࡞ࡿ㸬ࡑࡢࡓࡵ㸪ẕᮦ࡜⾲ᮦࡢ᥋ྜࡢྍྰࡸ⾲ᮦࡢ⾲㠃≧ែ࡟จᅛ ᗘ⠊ᅖࡢ┦㐪ࡀᙳ㡪ࢆཬࡰࡍࡇ࡜ࡶண ࡉࢀࡿ㸬ࡑࡇ࡛ 2 ✀㢮ࡢ⾲ᮦࡢจᅛ ᗘ⠊ᅖ㸪จᅛ㊥㞳ࡀࢡࣛࢵࢻᮦཬࡰࡍᙳ㡪࡟ࡘ࠸࡚ㄪᰝࡋࡓ㸬 㸰㸬ᐇ㦂᮲௳ ⦪ᆺ཮࣮ࣟࣝ࢟ࣕࢫࢱ࣮ࢆୖୗ 2 ẁ࡟㓄⨨ࡋࡓ 3 ᒙࢡࣛࢵࢻᮦ
స〇⏝ࡢ⦪ᆺࢱࣥࢹ࣒཮࣮ࣟࣝ࢟ࣕࢫࢱ࣮ࡢᶍᘧᅗࢆᅗ 1)࡟♧ࡍ㸬࣮ࣟࣝᚄࡀ 300mm ࡢ㖡࣮ࣟࣝࢆ౑⏝ࡋࡓ㸬ࡇࢀࡣ㸪෭༷⬟ࡢྥୖ࡜ᯈࡢᅛ╔㜵Ṇࡢࡓࡵ࡛࠶ࡿ㸬࣮ࣟࣝ࿘㏿㸪࣮ࣟࣝⲴ㔜㸪࣮ࣟࣝࡢ㛫㝽㸪ྛᒙࡢᯈཌࢆಶู࡟ㄪ⠇ࡍࡿࡇ࡜ࡀ࡛ࡁࡿࡼ࠺࡟タィࡋࡓ㸬ẕᮦ ⾲ 1 ࡟ྜ㔠 1 ࠿ࡽྜ㔠 4 ࡲ࡛ࡢ 4 ✀㢮ࡢ⾲ᮦ࠾ࡼࡧẕᮦࡢ 3003
ࡢจᅛ ᗘ⠊ᅖ࡜ὀ‫ ‮‬ᗘࢆ♧ࡋࡓ㸬1-H ࡣྜ㔠 1 ࡢὀ‫ ‮‬ᗘࢆจᅛ㊥㞳625 ࠿ࡽ 700 ࡟㧗ࡃࡋࡓࡶࡢ࡛࠶ࡿ㸬ྜ㔠 2 ࡣྜ㔠 1 ࡜ẚ㍑ࡋ࡚ᅛ┦⥺ ᗘࡣ࡯ࡰྠࡌ࡛࠶ࡿࡀ㸪ᾮ┦⥺
㔠 4 ࡣ㸪ᅛ┦⥺⾲ᮦ Aᗘࡀ㧗࠸㸬ྜ㔠 3 ࡜ྜ⾲ᮦ B

ᅗ㸯㸧3 ᒙࢡࣛࢵࢻᮦస〇⏝཮ᗘࡀྜ㔠㸯ࡢᾮ┦⥺ ᗘࡼࡾ㧗࠸ࡶࡢ࡜ࡋࡓ㸬⾲㸰࡟ࡣ 3 ᒙࢡࣛࢵࢻᮦࡢ⾲ᮦࡢྜ㔠ࡢ⤌ࡳྜࢃࡏ࡜จᅛ㊥㞳ࢆ♧࣮ࣟࣝ࢟ࣕࢫࢱ࣮ࡢᶍᘧᅗ㸬ࡋࡓ㸬EL ࡀ௜࠸࡚࠸ࡿࡶࡢࡣจᅛ㊥㞳ࢆ 25mm ࠿ࡽ 70mm ࡟㛗ࡃࡋࡓࡇ࡜ࢆ♧ࡍ㸬⾲㸯㸧ྜ㔠ࡢจᅛ
ྜ㔠
ྜ㔠1

จᅛ

ᗘ⠊ᅖ࡜ὀ‫‮‬ᗘᗘ (OC)

ὀ‫‮‬

575-590⾲㸰㸧⾲ᮦࡢ⤌ࡳྜࢃࡏ࡜จᅛ㊥㞳ᗘ (OC)

ᐇ㦂

⾲ᮦ A

⾲ᮦ B

จᅛ㊥㞳(mm)

625

No.1

ྜ㔠 1

ྜ㔠 1

25

700㸦No.1-H㸧

No.1-Hྜ㔠 1

ྜ㔠 1-H25

ྜ㔠2

577-620

700

No.2

ྜ㔠 1

ྜ㔠 2

25

ྜ㔠3

617-637

700

No.3

ྜ㔠 1

ྜ㔠 3

25

ྜ㔠4

627-643

700

No.4

ྜ㔠 1

ྜ㔠 4

25

3003(ẕᮦ)

643-654700

No.3-EL

ྜ㔠 1

ྜ㔠 3

70

No.4-EL

ྜ㔠 1

ྜ㔠 4

70

㸱㸬ᐇ㦂⤖ᯝ ᐇ㦂 No.1 ࠿ࡽ No.4-EL ࡲ࡛ࡢࢡࣛࢵࢻᮦࡢ⾲㠃≧ែ࡜ᐇ㦂 No.1 ࡜ No.4 ࡢ᩿㠃ࢆᅗ 2 ࡟♧ࡍ㸬ᐇ㦂 No.1
࡜ No.1-H ࡢ⤖ᯝࡼࡾ⾲ᮦ A ࡜⾲ᮦ B ࡢᮦ㉁ྠࡌ࡛࠶ࢀࡤ㸪ὀ‫‮‬ᗘࡣ⾲ᮦࡢ≧ែ࡟ᙳ㡪ࡋ࡞࠸ࡇ࡜ࡀࢃ

࠿ࡗࡓ㸬ᐇ㦂 No.2 ࡢྜ㔠 1 ࡢ⾲㠃≧ែࡣ࣮࡛ࣟࣝจᅛࡋࡓ᫬ࡢᖹᆠࡉ࡜㔠ᒓගἑࡣኻࢃࢀ࡚࠸ࡓ㸬༙จಶ≧ែࡲ࡛ຍ⇕ࡋࡓࡼ࠺࡞≧ែ࡛࠶ࡗࡓ㸬ᐇ㦂 No.3 ࡜ No.4 ࡢྜ㔠 1 ࡢ⾲㠃≧ែࡣ㸪ᐇ㦂 No. 2 ࡼࡾᅛ┦⋡ࡢప࠸༙จᅛ≧ࢆ࿊ࡋ࡚࠸ࡓ㸬ᐇ㦂 No.1 ࡜ No.4 ࡢྜ㔠 1 ࡜ẕᮦࡢ 3003 ࡢ᥋ྜ⏺㠃ࡣ୧᪉࡜ࡶ᫂☜࡛࠶ࡾ㸪− 80 −┠ど࡛ࡣᕪ␗ࡣ↓ࡃ㸪ẕᮦࡢ 3003 ࡣ⁐ゎࡋ࡚࠸࡞࠸㸬⾲ᮦࡢ࣮ࣟࣝ᥋ゐ㠃ࡣ㸪࣮ࣟࣝ࡟᥋ࡋ࡚࠸ࡿ࡜ࡁࡣ
ᖹᆠ࡛࠶ࡾ㸪࣮ࣟࣝ࠿ࡽ㞳ࢀࡓᚋ࡟෌⁐ゎࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬ᮏ᪉ἲ࡛ࡣ㸪ᯈࡢ୰ኸ㒊ࡣぢจᅛ㒊ࡀṧᏑࡋ࡚࠸ࡿ㸬ࡋࡓࡀࡗ࡚ྜ㔠 1 ࡣྜ㔠 2㸪3㸪4 ࡢจᅛ₯⇕ࡢ୍㒊࡟ࡼࡾ෌⁐ゎࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ㸪ᐇ㦂
No.3-EL ࡜ No.4-EL ࡛ࡣ㸪ྜ㔠㸯ࡣ෌⁐ゎࡋࡓ⾲㠃≧ែ࡟ࡣ࡞ࡽ࡞࠿ࡗࡓ㸬
ྜ㔠 1

ྜ㔠 1

ᐇ㦂 No.1ྜ㔠 1ྜ㔠 1-H

ྜ㔠 1

20mm
ྜ㔠 1

ྜ㔠 2

ྜ㔠 3

ᐇ㦂 No.2ᐇ㦂 No.3

1mm

3003

20 mm

ᐇ㦂 No.4
ྜ㔠 1

ྜ㔠 1

ྜ㔠 1

ྜ㔠 4

ྜ㔠㸯

20m

ᐇ㦂 No.1-H

ྜ㔠 3

3003

1mm

ᐇ㦂 No.1 ᩿㠃ᐇ㦂 No.4 ᩿㠃

ྜ㔠 1

ྜ㔠 4

ᐇ㦂 No.4-ELᐇ㦂 No.3-ELᅗ 2㸧ྛ᮲௳࡛స〇ࡋࡓࢡࣛࢵࢻᮦࡢ⾲㠃࡜᩿㠃ࡢ≧ែ㸬 จᅛ㊥㞳ࡀ 25mm ࡢᐇ㦂 No.4 ࡢྜ㔠㸯ࡢ

ྜ㔠㸲
ྜ㔠㸯

ᅛ┦⥺ ᗘ

⾲ᮦࡣ࣮ࣟࣝ㛫㝽ᚋ࡟ᅛ┦⥺ᯈࡢ⾲㠃 ᗘ

ᯈ䛾⾲㠃 ᗘ㻌ྜ㔠㸯ࡢ᪼ࡍࡿ㸬ࡋ࠿ࡋ㸪จᅛ㊥㞳ࡀ 75mm ࡢᐇ㦂
No.4-EL ࡛ࡣྜ㔠 4 ࡢᖹᆒ ᗘࡀపࡃ࡞ࡿࡓ
ࡵจᅛ₯⇕ࡢᙳ㡪ࡣᑠࡉࡃ࡞ࡾ㸪ྜ㔠 1 ࡢ
ᗘࡣᅛ┦⥺

࣮ࣟࣝ㛫㝽
఩⨨㻌

ᐇ㦂 No.4ᅗ㸱㸧 จᅛ㊥㞳࡜ྜ㔠 1 ࡢᗘࡼࡾ㧗ࡃୖ

ᗘࡼࡾࡶ㧗ࡃ࡞ࡽ࡞࠸࡜⪃࠼ࡽࢀࡿ㸬ࡇࡢࡓࡵ No.4 –EL ࡛ࡣ㸪ྜ㔠 1 ࡣ෌఩⨨ᐇ㦂 No.4-ELᗘࡢ㛵ಀࢆ♧ࡍᶍᘧᅗ⁐ゎࡋ࡞࠿ࡗࡓ࡜⪃࠼ࡽࢀࡿ㸬ᐇ㦂 No.4 ࡜ᐇ㦂 No.4-EL ࡢྜ㔠 1 ࡜ྜ㔠 4 ࡢᗘୖ᪼ࡢᵝᏊࢆᶍᘧⓗ࡟♧ࡍ࡜ᅗ 3 ࡟࡞ࡿ㸬㸲㸬ࡲ࡜ࡵ
 3 ᒙࢡࣛࢵࢻᮦ࡟࠾࠸࡚⾲ᮦࡢจᅛ ᗘ⠊ᅖࡀ␗࡞ࡿ࡜ࡁ㸪จᅛ ᗘ⠊ᅖࡀప࠸ᮦ㉁ࡢ⾲ᮦࡀ෌⁐ゎࡍࡿሙྜࡀ࠶ࡿࡇ࡜࡜㸪෌⁐ゎࡣจᅛ㊥㞳ࢆ㛗ࡃࡍࡿࡇ࡜࡟ࡼࡗ࡚㜵ࡄࡇ࡜ࡀ࡛ࡁࡿ஦ࢆ᫂ࡽ࠿࡟ࡋࡓ㸬㸳㸬ཧ⪃ᩥ⊩
1) T.Haga, Casting of clad strip by a twin roll caster, Materials Science Forum, Vols.794-796(2014)772-777
㸦ඹྠ◊✲ศ㔝 ⎔ቃㄪ࿴ࣉࣟࢭࢫᏛ㸧− 81 −p ᆺ❅໬࣒࢞ࣜ࢘࡬ࡢ㠀ᩚὶᛶప᢬ᢠ㟁ᴟᙧᡂࣉࣟࢭࢫࡢ㛤Ⓨ᪥ᮏ኱Ꮫ⏕⏘ᕤᏛ㒊
๓⏣ᑗඞ
1. ⥴ゝ
 ❅໬࣒࢞ࣜ࢘㸦GaN㸧ࢆḟୡ௦ࣃ࣮࣡㟁Ꮚ⣲Ꮚ࡜ࡋ࡚฼⏝ࡍࡿࡓࡵ࡟ࡣ㸪㔠ᒓ㓄⥺ᮦ࡜ࡢ⏺㠃࡛ࡢࢩࣙࢵ
ࢺ࣮࢟㞀ቨ࡟㉳ᅉࡋࡓࢥࣥࢱࢡࢺ᢬ᢠࡢపῶࢆᅗࡽࡡࡤ࡞ࡽ࡞࠸㸬ࢩࣙࢵࢺ࣮࢟㞀ቨࢆపࡃ㸪࠶ࡿ࠸ࡣⷧࡃ
ࡍࡿ࡟ࡣ㸪㐺ษ࡞ࢥࣥࢱࢡࢺᮦᩱࡢ㑅ᢥࡸ⏺㠃㏆ഐࡢ GaN ୰᭷ຠ࢟ࣕࣜ࢔ᐦᗘୖ᪼ࡀᚲせ࡜࡞ࡿ㸬≉࡟ p
ᆺ GaN ࡬ࡢ㟁ᴟᙧᡂ࡛ࡣ㸪௨ୗࡢ⌮⏤࡟ࡼࡗ࡚ࡇࡢၥ㢟ࡀ୍ᒙᅔ㞴࡜࡞ࡗ࡚࠸ࡿ㸸ձp ᆺ GaN ࡢ Fermi ‽఩ࡀ῝࠸㸦ᐊ ࡛┿✵‽఩࠿ࡽ 7.50 eV㸧ࡓࡵ㸪㔠ᒓ࡜ࡢ⏺㠃࡛㧗࠸ࢩࣙࢵࢺ࣮࢟㞀ቨࡀᙧᡂࡉࢀࡿࡢࡣ㑊ࡅࡽࢀ࡞࠸㸪ղp ᆺ GaN ࡢ࢔ࢡࢭࣉࢱ࣮ῧຍඖ⣲࡟ࡣ Mg ࡋ࠿⏝࠸ࡿࡇ࡜ࡀ࡛ࡁࡎ㸪㧗⃰ᗘ࡛ῧຍࡋ࡚ࡶ᭷ຠṇᏍ⃰ᗘࡀࡑࡢ⣙ 1%⛬ᗘ࡟ࡋ࠿࡞ࡽ࡞࠸㸬ᚑ᮶ࡣ p ᆺ GaN ࡟ᑐࡋ࡚௙஦㛵ᩘࡢ኱ࡁ࡞㔠ᒓᮦᩱࢆᡂ⭷ࡋ㸪⇕ฎ⌮ࡍࡿᡭἲࡀ᥇⏝ࡉࢀ࡚ࡁࡓ㸬ࡇࢀࡣࢩࣙࢵࢺ࣮࢟㞀ቨࡢ㧗ࡉࢆᢚ࠼ࡿᢏ⾡ࡢᶍ⣴࡜࠸࠼ࡿ㸬ᮏ◊✲࡛ࡶ㟁ᴟᮦ࡟ Ni㸦ᐊ࡛ࡢ௙஦㛵ᩘࡀ 5.15 eV㸧ࢆ᥇⏝ࡋ࡚㞀ቨ㧗ࡢపῶࢆᅗࡗࡓࡀ㸪ࡑࢀ࡟ຍ࠼࡚᭷ຠṇᏍ⃰ᗘࢆ㧗ࡵ࡚㞀ቨࡢཌࡉࢆⷧࡃࡍࡿᢏ⾡ࡢ㛤Ⓨ࡟ྲྀࡾ⤌ࢇࡔ㸬
 GaN ࡟ῧຍࡋࡓ Mg ࡀ᭷ຠ࡞࢔ࢡࢭࣉࢱ࣮࡜࡞ࡽ࡞࠸ཎᅉࡢ 1 ࡘ࡟㸪MO-CVD ἲ࡛ GaN ࢆᙧᡂࡍࡿ㝿࡟୙ྍ㑊ⓗ࡟ΰධࡍࡿỈ⣲ཎᏊ㸦H㸧ࡀᣲࡆࡽࢀࡿ[1, 2]㸬H ࡀᨺฟࡋࡓ㟁Ꮚࡀ Mg ࡢ࢔ࢡࢭࣉࢱ࣮‽఩ࢆ༨ࡵ࡚ࡋࡲ࠺ࡓࡵ㸪GaN ࡢ౯㟁Ꮚᖏ࠿ࡽ㟁Ꮚࢆᣠࡗ࡚ṇᏍࢆ⏕ᡂ࡛ࡁ࡞ࡃ࡞ࡿ㸬ࡇࡢ H ࢆ㝖ཤࡍࡿࡓࡵ㸪ᚑ᮶ࡣ㞺ᅖẼไᚚࡉࢀࡓ㧗 ࡛ࡢ⇕ฎ⌮ࢆᚲせ࡜ࡋ࡚ࡁࡓ[2]㸬ࡋ࠿ࡋ㸪㧗⇕ฎ⌮ࡣ GaN ࡢศゎ཯ᛂࢆಁ㐍ࡋ㸪

GaN ୰࡟ N ✵Ꮝࢆ⏕ᡂࡍࡿ㸬GaN ୰࡛ࡣ N ✵Ꮝࡣࢻࢼ࣮࡜ࡋ࡚స⏝ࡍࡿࡓࡵ㸪⇕ฎ⌮୰࡟ p-GaN ࡀ n-GaN࡟ኚ໬ࡍࡿࡇ࡜ࡶ㉳ࡇࡾ࠺ࡿ㸬ࡍ࡞ࢃࡕ㸪࢔ࢡࢭࣉࢱ࣮ῧຍඖ⣲ࢆάᛶ໬ࡉࡏࡿࡓࡵ࡛࠶ࡗ࡚ࡶ㸪㧗 ⇕ฎ⌮ࡣ p-GaN ࡟ࡣዲࡲࡋࡃ࡞࠸㸬 ᮏ◊✲࡛ࡣ㸪ࡇࡢࡼ࠺࡞㧗⇕ฎ⌮ࢆ⤒ࡿࡇ࡜࡞ࡃ࢔ࢡࢭࣉࢱ࣮ῧຍඖ⣲ࢆάᛶ໬ࡉࡏࡿᡭἲ࡜ࡋ࡚㸪ప⇕ฎ⌮୰࡟㟁ᴟ㛫࡟┤ὶ㟁ᅽࢆ༳ຍࡋ࡚㏻㟁ࡍࡿࡇ࡜ࢆヨࡳࡿ㸬ࡇࢀࡣ㸪H ࡀ㟁Ꮚࢆᨺฟࡋ࡚࢖࢜ࣥ໬ࡋ
࡚࠸ࡿ࡞ࡽࡤ㸪㟁ᅽ༳ຍ࡟ࡼࡾ⏺㠃㏆ഐ࠿ࡽ⛣ືࡉࡏࡿࡇ࡜ࡀ࡛ࡁ㸪ࡇࢀ࡟ࡼࡗ࡚ H ࢆ㑅ᢥⓗ࡟ GaN ෆ࠿ࡽ᤼ฟྍ⬟࡜࡞ࡿ࡜ࡢண ࡟ᇶ࡙࠸࡚࠸ࡿ㸬2. ᪉ἲ
 ᇶᯈ࡟ࡣ᭷ຠṇᏍ⃰ᗘ 3×1017 cm-3 ࡢ Mg ῧຍ p-GaN ࢆ⏝࠸ࡓ㸬ࡇࡢᇶᯈࡣࢧࣇ࢓࢖࢔ᇶᯈୖ࡟ࣂࢵࣇ࢓ᒙ
࡜ࡋ࡚↓ῧຍ GaN ࢆ 2.3 μm ᙧᡂࡋࡓୖ࡟✚ᒙࡉࢀ࡚࠾ࡾ㸪ࡑࡢཌࡉࡣ 2.0 μm ࡛࠶ࡿ㸬ࡇࡢᇶᯈࢆᖜ 1.0 mm
ࡢ㧗⣧ᗘ Al 〇࣐ࢫ࢟ࣥࢢࣜ࣎ࣥࢆ⏝࠸࡚㧗࿘Ἴ࣐ࢢࢿࢺࣟࣥࢫࣃࢵࢱ⵨╔⿦⨨ෆ࡟ᅛᐃࡋ㸪㧗⣧ᗘ Ni ࢱ࣮ࢤࢵࢺࢆ⏝࠸࡚ GaN ᇶᯈୖ࡟ Ni ࢆ 20 nm ᡂ⭷ࡋࡓ㸬 ࡇࡢ Ni/GaN ヨᩱࢆ 0.1 MPa ࡢ N2 㞺ᅖẼ୰㸪573 ࠶ࡿ࠸ࡣ 673 K ࡟࡚ 3600 s ⇕ฎ⌮ࡋࡓ㸬ࡇࢀࡽࡢ༙ᩘࡣ
⇕ฎ⌮୰࡟㟁ᴟ㛫࡟ 30 V ࡢ㟁ᅽࢆ༳ຍࡍࡿ㏻㟁⇕ฎ⌮࡜ࡋࡓ㸬㏻㟁⇕ฎ⌮୰ࡢ㟁ὶኚ໬ࡣ⢭ᐦ㟁ὶィࢆ⏝࠸࡚ィࡋࡓ㸬 ⇕ฎ⌮ᚋࡢ Ni/GaN ⏺㠃⤌⧊ࡣ㏱㐣㟁Ꮚ㢧ᚤ㙾ἲ࡟ࡼࡾゎᯒࡋࡓ㸬ࡲࡓ㸪ࡇࡢ⏺㠃ࡢ㟁Ẽఏᑟ≉ᛶࢆ┤ὶ㟁Ẽఏᑟヨ㦂࡟ࡼࡾィ ࡋ㸪㟁Ẽఏᑟ≉ᛶ࡟ᑐࡍࡿ⇕ฎ⌮᮲௳ࡢᙳ㡪ࢆㄪ࡭ࡓ㸬
3. ⤖ᯝ࠾ࡼࡧ⪃ᐹ
 Fig. 1 ࡣ㟁ᅽࢆ༳ຍࡏࡎ 573 K, 3600 s ⇕ฎ⌮ࡋࡓ⏺㠃⤌⧊࡛࠶ࡿ㸬Fig. 1(a)࡟♧ࡍ⏺㠃ࡢ᫂ど㔝ീ࡟ࡣᡂ⭷ࡋࡓ㟁ᴟࡀ᫂Ⰽࢆ࿊ࡋ࡚ GaN ࡟㞄᥋ࡋ࡚ほᐹࡉࢀࡿ㸬⏺㠃࡟ࡣ✵㝽ࡣほᐹࡉࢀ࡞࠸㸬ࡇࡢど㔝࡟ᑐᛂࡋࡓ㟁㹝Ꮚᅇᢡࣃࢱ࣮ࣥࡀ Fig. 1(b)࡛࠶ࡿ㸬Fig. 1(b)࡟ࡣ GaN [1100]ᬗᖏ㍈ࢿࢵࢺࣃࢱ࣮ࣥࡢࡳࡀ⌧ࢀ࡚࠾ࡾ㸪Ni ࠶
ࡿ࠸ࡣ Ni-Ga 㔠ᒓ㛫໬ྜ≀࠿ࡽࡢᅇᢡࢫ࣏ࢵࢺࡣぢࡽࢀ࡞࠸㸬− 82 −

Fig. 2 Effect of applying direct-current voltage during
annealing on the electrical conduction profiles of
GaN/Ni interfaces.
 ௨ୖࡢ⤖ᯝ࠿ࡽ㸪GaN ୖ࡟ᡂ⭷ࡋࡓ Ni ࡀᡂ⭷㐣⛬࠶ࡿ࠸ࡣ⇕ฎ⌮㐣⛬࡟࠾࠸࡚ GaN ࡜཯ᛂࡋ࡚ Ni-Ga
Fig. 1 Interfacial structure between GaN and deposited໬ྜ≀ࢆᙧᡂࡋࡓ࠿ྰ࠿ࡣ⌧≧࡛ࡣุ᩿࡛ࡁ࡞࠸㸬ࡋelectrode film after annealing at 573 K for 3.6 ks. (a) A࠿ࡋ㸪873 K ࡛⇕ฎ⌮ࡋࡓሙྜࡣ GaN ࡜㟁ᴟ⭷ࡢ⏺㠃bright-field image of the interface, (b) electron཯ᛂ࡟ࡼࡗ࡚⏕ᡂࡋࡓ N2 ࢞ࢫ࡜⪃࠼ࡽࢀࡿ✵㝽ࡀᙧ

diffraction pattern corresponding to the area shown inᡂࡉࢀࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿ㸬ࡇࡢࡇ࡜࠿ࡽ㸪⇕ฎ(a).

⌮ࡢప ໬࡟ࡼࡗ࡚ GaN ࡜ࡑࡢୖ࡟ᡂ⭷ࡉࢀࡓ Ni ࡢ⏺㠃཯ᛂࢆᢚไࡍࡿࡇ࡜࡟ࡣᡂຌࡋ࡚࠸ࡿ࡜ุ᩿ࡉࢀ

ࡿ㸬
 GaN㸭㟁ᴟ⭷⏺㠃ࡢ㏻㟁≉ᛶ࡟ᑐࡍࡿ⇕ฎ⌮୰ࡢ㟁ᅽ༳ຍࡢຠᯝࢆ Fig. 2 ࡟♧ࡍ㸬⇕ฎ⌮ ᗘࡀ㧗࠸࡯࡝㟁Ẽఏᑟ≉ᛶࡣྥୖࡍࡿࡀ㸪㏻㟁⇕ฎ⌮࡟ࡼࡾ㟁Ẽఏᑟ≉ᛶࡣࡉࡽ࡟ 2 ಸᙉྥୖࡋ㸪≉࡟ 1 V ௨ୗࡢప㟁ᅽ࡛ࡣࡑࡢᕪࡀ㢧ⴭ࡟⾲ࢀࡿ㸬673 K ࡛ࡢ↓㏻㟁⇕ฎ⌮ᚋ࡛ࡣ 1 V ࡢ㟁ᅽ༳ຍ࡟ᑐࡋ࡚ 4.8 μA ࡢ㟁ὶࡋ࠿ᚓࡽ
ࢀ࡞࠸ࡀ㸪573 K ࡛ࡢ㏻㟁⇕ฎ⌮ᚋ࡛ࡣྠ㟁ᅽ༳ຍ࡟ᑐࡋ࡚ 18.5 μA ࡢ㟁ὶࡀᚓࡽࢀࡿ㸬4. ⤖ゝ
 ௨ୖࡢ⤖ᯝ࠿ࡽ㸪GaN ࡢ〇㐀ࣉࣟࢭࢫ࡟࠾࠸࡚㸪Ỉ⣲ࡢΰධࢆᢚไࡍࡿ㸪࠶ࡿ࠸ࡣΰධࡋࡓỈ⣲ࢆ᤼ฟࡍࡿࣉࣟࢭࢫࡀ㸪᭷ຠṇᏍ⃰ᗘࢆ㧗ࡵ࡚ရ㉁ࢆᏳᐃ໬ࡉࡏࡿࡇ࡜࡟࠾࠸࡚ᚲ㡲࡛࠶ࡾ㸪⇕ฎ⌮୰ࡢ㟁ᅽ༳ຍࡀࡑࡢ᭷ຠ࡞ᡭẁ࡜࡞ࡿࡇ࡜ࢆ♧ࡍࡇ࡜ࡀ࡛ࡁࡓ㸬ཧ⪃ᩥ⊩[1] K. Orita, M. Kawaguchi, Y. Kawaguchi, S. Takigawa and D. Ueda: J. Electron. Mater., Vol. 38 (2009), 538-544.
[2] W.R. Wampler and S.M. Myers: J. Appl. Phys., 94 (2003), 5682-5687.
㸦ඹྠ◊✲ศ㔝㸸⎔ቃㄪ࿴ࣉࣟࢭࢫᏛศ㔝㸧− 83 −

㉸◳ྜ㔠⢊ᮎࢆ⏝࠸ࡓ࢔࣑ࣝࢽ࣒࢘ྜ㔠ᯈୖ࡬ࡢ⪏ᦶ⪖ᛶᒙࡢ㛤Ⓨ
㻔㍍㔠ᒓᮦᩱ䛾䜽䝷䝑䝗ᮦᙧᡂ䛻㛵䛩䜛◊✲㻕 ஑ᕞᕤᴗ኱Ꮫ  ᒣཱྀᐩᏊ㸪⋤ ᩥ⍆す᪥ᮏᕤᴗ኱Ꮫ すᑿ୍ᨻ    ኱㜰኱Ꮫ    㧘ᶫ ᗣኵ   
1. ⥴ ゝ ㏆ᖺࡢ㍍㔞໬ࠊ┬㈨※ࠊ┬࢚ࢿࣝࢠ࣮ၥ㢟࡟ᑐᛂࡍࡿࡇ࡜ࢆ┠ⓗ࡟ࠊ㌴୧ᵓయࡢ㍍㔞໬࡟࠾࠸࡚ࡣࠊ࢔࣑ࣝࢽ
࣒࢘ࡢ㐺⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿ 1)ࠋࡋ࠿ࡋࠊ࢔࣑ࣝࢽ࣒࢘ࡣࠊ⪏ᦶ⪖ᛶ࡟ຎࡾ 2)ࠊᦾື㒊࡬ࡢ㐺⏝ࡀ㜼ࡲࢀ࡚࠸ࡿࠋ
㏆ᖺࠊ◳㉁ᮦᩱࡢ⫗┒⁐᥋ࡀ⾜࡞ࢃࢀࡿࡀࠊ᪋ᕤ᫬ࡢ⇕※࡟࢔࣮ࢡࡸ࣮ࣞࢨ➼ 3-5)ࢆ⏝࠸ࡿࡓࡵࠊᇶᮦ࡬ࡢ⇕ⓗᙳ㡪ࡀ኱ࡁࡃࠊⷧᯈ࡬ࡢ㐺⏝ࡣᅔ㞴࡛࠶ࡿࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣ WC ㉸◳㉁⢊ᮎ࡜㧗Ⅳ⣲㗰⢊ᮎ SHA ࡢΰྜ⢊ᮎࢆ⏝࠸࡚ࠊࢩ࣮࣒⁐᥋ἲ࡟ࡼࡾࠊཌࡉ 2 mm ࡢ A6061 ྜ㔠ᯈୖ࡟⪏ᦶ⪖ᛶࢆ᭷ࡍࡿࢡࣛࢵࢻᒙࢆ㛤Ⓨࡋࡓࠋ㛤Ⓨࡋࡓࢡࣛࢵࢻᒙࡢ࣑ࢡࣟ⤌⧊ཬࡧ㔠ᒓ㛫໬ྜ≀ࡢᙧᡂࢆ᳨ウࡋࡓࠋࡲࡓࠊ⪏ᦶ⪖≉ᛶࡣ࣮࣎ࣝ͌࢜ࣥ͌ࢹ࢕ࢫࢡ
ᦶ⪖ヨ㦂ᶵ࡟ࡼࡾㄪᰝࡋࡓࠋ
2. ౑⏝ᮦᩱཬࡧᐇ㦂᪉ἲ ᇶᮦ࡟ࡣᯈཌ 2ࠊᖜ 30 ཬࡧ㛗ࡉ 150 mm ࡢ Al-Mg-Si ⣔ྜ㔠 A6061 ࢆ౑⏝ࡋࡓࠋ⪏ᦶ⪖⢊ᮎࡣࠊ⢏ᚄ 45~75 ȝmࡢ WC ⢊ᮎཬࡧ⢏ᚄ 63~90 ȝm ࡢ㧗Ⅳ⣲㗰 SHA ⢊ᮎࢆࡑࢀࡒࢀ 7:3ࠊ1:1 ཬࡧ 3:7 ࡢΰྜ๭ྜ࡜ࡋࡓࠋࡲࡓࠊࢩ࣮
࣒⁐᥋ᶵࡢ㟁ᴟ࡟യࢆࡘࡅ࡞࠸ࡼ࠺࡟ࠊ⢊ᮎᒙࡢୖ࡟⟩ཌ 100 ȝm ࡢࢫࢸࣥࣞࢫ㗰⟩(SUS304)ࢆ౑⏝ࡋࡓࠋ⁐᥋㟁ὶ: 3.0 kAࠊ⁐᥋㏿ᗘ: 0.5 m/minࠊຍᅽຊ: 196 Nࠊ㟁ᴟᖜ: 5.0 mm ࡢ᮲௳࡟࠾࠸࡚ࠊ᢬ᢠࢡࣛࢵࢹ࢕ࣥࢢἲࢆ⏝࠸࡚ࢡࣛࢵࢻᒙࢆᙧᡂࡋࡓࠋᙧᡂࡋࡓࢡࣛࢵࢻᒙࡢ᩿㠃ࡢ࣑ࢡࣟ⤌⧊ࢆほᐹࡋࡓࠋࡲࡓࠊ㔠ᒓ㛫໬ྜ≀ࡢᙧᡂࢆ᳨ウࡍࡿࡓࡵࠊXRD ศᯒཬࡧ FE-EPMA ⥺ศᯒࢆ⾜ࡗࡓࠋᦶ⪖ヨ㦂ࡣࠊ࣮࣎ࣝ͌࢜ࣥ͌ࢹ࢕ࢫࢡᦶ⪖ヨ㦂ᶵ㸦FPR-2000㸧ࢆ౑⏝ࡋࡓࠋ࣮࣎ࣝ࡟┤ᚄ 5 mm ࡢ࢔࣑ࣝࢼࢆ౑⏝ࡋࠊᦾື㏿ᗘ: 64 mm/sࠊᦾື᫬㛫: 3 ᫬㛫ࠊ ᚟㊥㞳: 10 mmࠊⲴ㔜: 4.9 Nࠊᐊ ࠊ኱Ẽ୰ࡢ᮲௳ୗ࡛⾜ࡗࡓࠋࡑࡋ࡚ࠊࡑࢀࡒࢀࡢᦶ⪖⑞ࡢᖜ w ࢆ ᐃࡋࠊࢡࣛࢵ
ࢻᒙཬࡧᇶᮦࡢᦶ⪖య✚ࢆィ⟬ࡋࡓࠋ
3. ᐇ㦂⤖ᯝཬࡧ⪃ᐹ
3.1 ࢡࣛࢵࢻᒙ᩿㠃ࡢ࣑ࢡࣟ⤌⧊
Fig.1 ࡟ 50% WC ࡢ᮲௳࡛ᙧᡂࡋࡓࢡࣛࢵࢻᒙࡢ᩿㠃⤌⧊(a)ࠊ⾲㠃௜㏆ࡢ⤌⧊(b)ࠊࢡࣛࢵࢻᒙ୰㒊(c)ཬࡧࢡࣛ
ࢵࢻᒙ࡜ᇶᮦ⏺㠃௜㏆ࡢ⤌⧊(d)ࡢ㧗ಸ⋡ࢆ♧ࡍࠋᇶᮦ A6061 ୖ࡟ࠊཌࡉ⣙ 550~650 ȝm ࡢࢡࣛࢵࢻᒙࡀᙧᡂࡉࢀࡓࠋࢡࣛࢵࢻᒙ
࡜ᇶᮦࡢ⏺㠃࡟ࢡࣛࢵࢡࡣㄆࡵࡽࢀࡎࠊᇶᮦ࡜ࢡࣛࢵࢻᒙࡣⰋ
ዲ࡟᥋ྜࡋ࡚࠸ࡿࠋࡲࡓࠊࢡࣛࢵࢻᒙෆ࡟ゅ≧ࡢ WC ㉸◳㉁⢏
Ꮚࠊ⌫≧ࡢ SHA ⢏Ꮚཬࡧ⢏Ꮚ㛫࡟ A6061 ࡀほᐹࡉࢀࡿࠋᚑࡗ࡚ࠊ
ᇶᮦ A6061 ࡣ⁐⼥ࡋࠊ⢊ᮎᒙෆ࡟ẟ⣽⟶⌧㇟ࡢࡼ࠺࡟ࢡࣛࢵࢻ
ᒙୖ㒊ࡲ࡛ᾐධࡋࡓࡇ࡜ࡀศ࠿ࡗࡓࠋࡲࡓࠊ౵ධࡋࡓ A6061 ୰࡟㔪≧࡞⤌⧊ࡀぢࡽࢀࡿࠋࡇࡢ㔪≧࡞⤌⧊ࡣࢡࣛࢵࢻᒙࡢ⾲㠃௜㏆࠿ࡽෆ㒊࡟ḟ➨࡟ῶᑡࡋࠊᇶᮦ࡜ࡢ⏺㠃௜㏆ࡢ㡿ᇦ࡟࠾࠸࡚ࡣࠊᬗฟ≀ࡣ࡯࡜ࢇ࡝ぢࡽࢀ࡞࠸ࠋ௚ࡢ᮲௳࡛ࡶ࡯ࡰྠࡌ⤖ᯝࡀᚓࡽࢀࡓࠋ
㔪≧ࡢ⤌⧊ࢆྠᐃࡍࡿࡓࡵࠊࣅ࣮࣒ᚄࡀ 50 ȝm ࡢᚤᑠ X ⥺ࢆ Fig.1 SEM images of the microstructures.
⏝࠸࡚ XRD ศᯒࢆ⾜ࡗࡓ࡜ࡇࢁࠊࢡࣛࢵࢻᒙෆ࡟࠾࠸࡚ࠊA6061(a) Overview of cladding layer on crossཬࡧ SHA ࠿ࡽࡢࣆ࣮ࢡࡢ௚࡟ࠊWC ཬࡧ FeAl3 ࡀྠᐃࡉࢀࡓࠋࡲ
section, (b) Near surface region,
ࡓࠊFE-EPMA ⥺ศᯒࡢ⤖ᯝ࠿ࡽࠊ㔪≧࡞⤌⧊ࡢ Al ࡢཎᏊ⃰ᗘࡣ(c) Intermediate region, (d) Near substrate /75%࡜࡞ࡾࠊ㔪≧࡞⤌⧊ࡣ㔠ᒓ㛫໬ྜ≀ FeAl3 ࡛࠶ࡿࡇ࡜ࡀศ࠿
cladding layer interface region. (50% WC)ࡗࡓࠋ3.2 ᦶ⪖ヨ㦂ࡢ⤖ᯝ Fig.2 ࡟࣮࣎ࣝ͌࢜ࣥ͌ࢹ࢕ࢫࢡᦶ⪖ヨ㦂ࡢ⤖ᯝࢆ♧ࡍࠋᅗ୰࡟ࡣࡑࢀࡒࢀࡢヨᩱཬࡧᇶᮦࡢᦶ⪖ಀᩘ ȝ ཬࡧᦶ⪖య✚ࢆ♧ࡍࠋᇶᮦ A6061 ࡢᖹᆒᦶ⪖య✚ࡣ 4.97 mm3 ࡛࠶ࡗࡓࡢ࡟ᑐࡋࠊWC ⢊ᮎࡢ๭ྜࡀ 30ࠊ50 ཬࡧ 70%࡜− 84 −

኱ࡁࡃ࡞ࡿ࡟ࡘࢀ࡚ࠊᖹᆒᦶ⪖య✚ࡣࡑࢀࡒࢀ 0.12ࠊ0.09 ཬࡧ 0.08 mm3 ࡜ᑠࡉࡃࠊᇶᮦ࡜ẚ㍑ࡋ࡚᭱኱⣙ 62 ಸྥୖࡋࠊ⪏ᦶ⪖ᛶࡢᨵၿࡀㄆࡵࡽࢀࡓࠋࡲࡓࠊᇶᮦ A6061 ཬࡧ WC ⢊ᮎࡢ๭ྜࡀ 30ࠊ50 ཬࡧ 70%ࡢࢡࣛࢵࢻᒙ
ࡢᖹᆒᦶ⪖ಀᩘࡣࡑࢀࡒࢀ 0.61ࠊ0.51ࠊ0.43 ࠾ࡼࡧ 0.35 ࡛࠶ࡾࠊࡇࡢഴྥࡣᦶ⪖య✚࡜ྠᵝࡢഴྥࢆ♧ࡋࡓࠋ
 Fig.3 ࡟ 50% WC ࡢࢡࣛࢵࢻᒙ࡟࠾ࡅࡿᦶ⪖⑞ࡢ SEM ീࢆ♧ࡍࠋ
Fig.3(a)࡟࠾࠸࡚ࠊᖜ⣙ 550 ȝm ࡢᦶ⪖⑞ࡀぢࡽࢀࡿࠋFig.3(b)ࡣ(a)ࡢ㧗ಸ⋡࡛࠶ࡿࠋSHA ⢊ᮎ㛫ࡢ A6061 ࡀࢡࣛࢵࢻᒙ࠿ࡽⱝᖸ๤㞳ࡋࡓࡓࡵࠊࢡࣛࢵࢻᒙࡢᦶ⪖࡟ࡘ࡞ࡀࡗࡓ࡜⪃࠼ࡽࢀࡿࠋFig.3(c)࡟⬺ⴠࡋࡓ A6061 ࡢ㡿ᇦ࡟࠾࠸࡚ࢡࣛࢵࢡࡀほᐹࡉࢀࡓࡓࡵࠊ
A6061 ⤌⧊ࡣࢡࣛࢵࢡࡼࡾࠊ⬺ⴠࡋࡓ࡜⪃࠼ࡽࢀࡿࠋFig.3(d) ࡟
SHA ⢊ᮎ⾲㠃࡟࣮࣎ࣝᮦ࡜ࡢᦶ᧿࡟ࡼࡾ⏕ࡌࡓ↓ᩘ࡞ὸ࠸⁁ࡀほᐹࡉࢀࡿࠋࡇࢀࡣ SHA ⢊ᮎࡢ◳ࡉࡀ࢔࣑ࣝࢼ࣮࣎ࣝᮦ࡜ẚ㍑ࡋ࡚ᑠࡉ࠸ࡓ
ࡵࠊจ╔ᦶ⪖ࡀ⏕ࡌࡓࡶࡢ࡜⪃࠼ࡽࢀࡿࠋࡲࡓࠊFeAl3 ࡢ⾲㠃ࡣ⁁ཬࡧࢡࣛࢵࢡࡀほᐹࡉࢀ࡞࠿ࡗࡓࡇ࡜࠿ࡽࠊFeAl3 ࡣࢡࣛࢵࢻᒙࡢ⪏ᦶ⪖ᛶࢆᨵၿࡍࡿຠᯝࡀ࠶ࡿࡶࡢ࡜᥎ᐹࡉࢀࡿࠋ௨
Fig.2 Wear track volumes of the claddingୖࡢ⤖ᯝ࠿ࡽࠊࢡࣛࢵࢻᒙࡣ๤㞳ཬࡧจ╔ᦶ⪖࡟ࡼࡗ࡚ᦶ⪖ࡀ㐍⾜
layers and the substrate with wear time afterࡋࡓࡶࡢ࡜⪃࠼ࡽࢀࡿࠋ
wearing tests.

Fig.3 Worn surface of cladding layers. (a) Wear track, (b) Magnification micrograph of (a),(c) Surface of A6061, (d) Surface of SHA and FeAl3 (50%WC)
4. ⤖ ㄽᮏ◊✲࡛ࡣࠊ⪏ᦶ⪖ᛶ࡟ඃࢀࡓ WC ཬࡧ SHA ⢊ᮎࡢࢡࣛࢵࢻᒙ᭷ࡍࡿᇶᮦ A6061 ࡢ㛤Ⓨཬࡧ⪏ᦶ⪖ᛶࢆ᳨ウࡋࡓࠋ ᚓࡽࢀࡓ⤖ᯝࢆࡲ࡜ࡵࡿ࡜ࠊḟࡢ㏻ࡾ࡛࠶ࡿࠋ
㸦㸯㸧30% WCࠊ50% WCཬࡧ70% WCࡢ⢊ᮎࢆ⏝࠸࡚ࠊᇶᮦA6061ୖ࡟ཌࡉ⣙550~650 ȝmࡢࢡࣛࢵࢻᒙࡀస〇࡛ࡁࡓࠋᇶᮦA6061ࡣ⁐⼥ࡋࠊ⢊ᮎᒙෆ࡟ẟ⣽⟶⌧㇟ࡢࡼ࠺࡟ࢡࣛࢵࢻᒙୖ㒊ࡲ࡛ᾐධࡋࡓࡇ࡜ࡀศ࠿ࡗࡓࠋ㸦㸰㸧XRDཬࡧFE-EPMA⥺ศᯒ࡟ࡼࡾࠊࢡࣛࢵࢻᒙෆ࡟FeAl3ࡀ⏕ᡂࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
㸦㸱㸧ᙧᡂࡋࡓࢡࣛࢵࢻᒙࡣࠊ࠸ࡎࢀࡶᇶᮦA6061࡜ẚ㍑ࡋ࡚⪏ᦶ⪖ᛶࡢᨵၿࡀㄆࡵࡽࢀࠊWC⢊ᮎࡢ๭ྜࡀ኱
ࡁࡃ࡞ࡿ࡟ࡘࢀ࡚ࠊ⪏ᦶ⪖ᛶࡀᨵၿࡉࢀࡓࠋ70% WCࡢ᮲௳࡛ࡢ⪏ᦶ⪖ᛶࡣ᭱ࡶඃࢀࠊᇶᮦ࡟ẚ㍑ࡋ࡚62ಸྥୖࡋࡓࠋࡲࡓࠊࢡࣛࢵࢻᒙࡢᦶ⪖ಀᩘࡢ኱ࡁࡉࡣWC⢊ᮎࡢ๭ྜࢆቑຍࡍࡿ࡜࡜ࡶ࡟ῶᑡࡋࠊࡑࢀࡣᦶ⪖య✚ࡢ኱ࡁࡉ࡜ྠᵝࡢഴྥࢆ♧ࡋ࡚࠸ࡓࠋ
㸦㸲㸧ࢡࣛࢵࢻᒙࡣ๤㞳ཬࡧจ╔ᦶ⪖࡟ࡼࡗ࡚ᦶ⪖ࡋࡓࡇ࡜ࡀศ࠿ࡗࡓࠋཧ ⪃ ᩥ ⊩1) C. Poletti, M. Balog, F. Simancik, H.P. Degischer: “High-temperature strength of compacted sub-micrometer  aluminium powder” Acta Materialia, 58, (2010), pp.3781-3789.
2) H.C. Man, S. Zhang, F.T. Cheng: “Improving the wear resistance of AA 6061 by laser surface alloying with NiTi”
Mater Lett. 61, (2007), pp.4058-4061.
3) M. Magnani, P.H. Suegama, N. Espallargas, S. Dosta, C.S. Fugivara, J.M. Guilemany, A.V. Benedetti: “Influence of
HVOF parameters on the corrosion and wear resistance of WC-Co coatings sprayed on AA7050 T7” Surf. Coat.
Technol. 202, (2008), pp.4746-4757.
4) K. Nakata, M. Ushio: “Effect of Fe content on wear resistance of thermal-sprayed Al-17Si-XFe alloy coating on A6063
Al alloy substrate.” Surf. Coat. Technol. 169-170, (2003), pp.443-446.
5) M.H. Staia, M. Cruz, Narendra.B. Dahotre: “Microstructural and tribological characterization of an A-356 aluminumalloy superficially modified by laser alloying” Thin Solid Films. 377-378, (2000), pp.665-674.
ඹྠ◊✲ศ㔝㸸⎔ቃㄪ࿴ࣉࣟࢭࢫᏛศ㔝− 85 −

␗ᮦ⏺㠃ࡢᚤ⣽ᵓ㐀ࡢほᐹࠊホ౯ཬࡧไᚚ
㔠ᒓ/㓟໬≀᥋ྜ⏺㠃ࡢࢼࣀ࣮࣮࢜ࢲ࣮ࣞ࣋ࣝࡢᵓ㐀ࡢゎᯒ⊂❧⾜ᨻἲே ≀㉁࣭ᮦᩱ◊✲ᶵᵓ ᅜ㝿ࢼࣀ࢔࣮࢟ࢸࢡࢺࢽࢡࢫ◊✲ᣐⅬ MANA ࣇ࢓࢘ࣥࢻࣜ
⏕⏣┠ ಇ⚽ࠊ኱஭ ᬡᙪ

1. ┠ⓗࢹ࢕ࢫࣉࣞ࢖⏘ᴗ࡛ࡣࠊ᭦࡞ࡿ⏬㠃ࡢ኱ᆺ໬ࠊ㧗⏬㉁໬ࠊపᾘ㈝㟁ຊ໬ࠊ㍍㔞ࠊཬࡧⷧ⭷໬ࡀ㐍ࡳࠊࡑࡢ୰࡛ࠊ
᭷ᶵ EL (Electro-Luminescence)ࡢࡓࡵࡢ᪂ࡓ࡞㝧ᴟᮦᩱࡢ㛤Ⓨࡀồࡵࡽࢀ࡚࠸ࡿࠋ㝧ᴟᮦᩱ࡟ࡣࠊḟࡢ㸦㸯㸧ྍどගࡢἼ㛗㡿ᇦ 380㹼780 nm ࡛㏱㐣⋡ࡀ 80%௨ୖࠊ㸦㸰㸧᢬ᢠࡀ 1u10-3:cm ௨ୗࠊཬࡧ㸦㸱㸧௙஦㛵ᩘࡀ 5.0 eV ௨ୖࠊࡢ 3 Ⅼࡀồࡵࡽࢀ࡚࠸ࡿࠋᚑ᮶ࡢ᭷ᶵ EL ࡢ㝧ᴟᮦᩱ࡟ࡣࠊ㘏ࢆࢻ࣮ࣉࡋࡓ㓟໬࢖ࣥࢪ࣒࢘ (Indium tin oxide: ITO)ࡀ⏝࠸ࡽࢀ࡚࠸ࡿࠋࡇࡢ ITO ᮦᩱࡣࠊୖグࡢ㸦㸯㸧㧗㏱㐣⋡ཬࡧ㸦㸰㸧ప᢬ᢠࡢ୧᮲௳ࢆ‶㊊ࡋ࡚࠸ࡿࠋࡋ࠿ࡋࠊ
௙஦㛵ᩘࡀ 4.7 eV ࡜せồ࡟ᑐࡋ࡚ᑠࡉ࡞ၥ㢟Ⅼࡀṧࡗ࡚࠸ࡿࠋᅗ 1 ࡟♧ࡍࡼ࠺࡟ࠊ᭷ᶵ EL ࡢࣂࣥࢻᅗ࡛ࠊ
LUMO
࣮࣍ࣝ㍺㏦ᒙࡢ HOMO ࣞ࣋ࣝࡀ 5.0 eV ௨ୖ࡜኱ࡁ࠸
ࡓࡵ࡟ࠊ㝧ᴟࡢࣇ࢙࣑ࣝࣞ࣋ࣝ࡜ᕪࡀ⏕ࡌࡿ࡜ࠊᕪศ
CathodeEWF(ITO) = 4.7 eV EmissionⓎගࢆゎᾘࡍࡿࡓࡵ࡟వศ࡞༳ྍ㟁ᅽࡀᚲせ࡜࡞ࡿࠋࡇࢀ
EWF(RuO2) = 5.4 eVࡣࠊ㧗㞟✚໬㸦㧗ࣆࢡࢭࣝ㸧ࡀ㐍ࡴᴗ⏺࡟࡜ࡗ࡚ࠊప
HOMO
ᾘ㈝㟁ຊ໬࡜㏫⾜ࡍࡿ஦࡟࡞ࡿࠋᚑࡗ࡚ࠊ௙஦㛵ᩘࡀ
Anode5.0 eV ࢆ㉸࠼ࡿ㝧ᴟᮦᩱࡀᮃࡲࢀ࡚࠸ࡿࠋ                               ᅗ㸯 ᭷ᶵ EL ࡢࣂࣥࢻᶍᘧᅗ
ࡇࡇ࡛ࠊࡇࢀࡲ࡛࡟ࠊ㓟໬ࣝࢸࢽ࣒࢘ (RuO2)ࡀ㟁Ẽ≉ᛶࡼࡾồࡵࡽࢀࡿᐇຠ௙஦㛵ᩘ (Effective work function:
EWF)ࡀ 5.3 eV ࡜኱ࡁ࡞್ࢆ᭷ࡍࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿ[1]ࠋࡋ࠿ࡋࠊ㝧ᴟᮦᩱ࡜ࡋ࡚ RuO2 ⭷ࢆ⏝࠸ࡿሙྜ࡟ࡣࠊ
ᑠࡉ࡞㏱㐣⋡ࡀ᭱኱ࡢᠱᛕ࡛࠶ࡿࠋ
ࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊRu ඖ⣲ࢆࢻ࣮ࣉࡋࡓ㓟໬࢖ࣥࢪ࣒࢘ (In1-xRuxOy)⭷ࢆస〇ࡋ࡚ࠊࡑࡢ≀ᛶࢆㄪ࡭ࡓࠋࡲࡓࠊ
ITO/In1-xRuxOy ࡢ✚ᒙᵓ㐀ࢆస〇ࡋ࡚ࠊࡑࡢ EWFࠊ᢬ᢠࠊཬࡧ㏱㐣⋡ࡢ≉ᛶࢆホ౯ࡋ࡚ࠊ᭷ᶵ EL ⏝㝧ᴟᮦᩱ࡜ࡋ
࡚ࡢ㐺ྜᛶ࡟ࡘ࠸࡚㆟ㄽࡋࡓࠋ≉࡟ࠊITO/ In1-xRuxOy ✚ᒙᵓ㐀ࡢ⤖ᬗᛶཬࡧ⏺㠃཯ᛂᒙࡢ᭷↓࡟ࡘ࠸࡚ࠊ኱㜰኱Ꮫ᥋ྜ◊ᡤ᭷ࡢ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾㸦᪥ᮏ㟁Ꮚ〇 JEM-2010㸧࡛ TEM(Transmission electron microscope)ほᐹཬࡧEDX(Energy dispersive X-ray spectroscopy)ඖ⣲࣐ࢵࣉ࡟ࡼࡾゎᯒࡋࡓࠋ2. ◊✲᪉ἲIn1-xRuxOy ⭷ࡣ In2O3 ཬࡧ Ru ࢱ࣮ࢤࢵࢺࢆ⏝࠸ࡓඹࢫࣃࢵࢱࣜࣥࢢἲ࡟ࡼࡗ࡚స〇ࡋ࡚ࠊ⭷ࡢ⤌ᡂẚࡣྛࠎࡢࢫ
ࣃࢵࢱࣜࣥࢢࣃ࣮࣡ࢆኚ࠼ࡿࡇ࡜࡛ㄪᩚࡋࡓࠋITO/In0.38Ru0.62Oy ✚ᒙ⭷ࡢ EWF ࢆồࡵࡿࡓࡵ࡟ࠊḟࡢ᪉ἲ࡛࢟ࣕࣃࢩࢱࢆస〇ࡋࡓࠋP-Si ୖ࡬⇕㓟໬࡛ࠊSiO2 ⭷ࢆ 6.9㹼12.0 nm ᙧᡂࡋࡓࠋ⥆࠸࡚ࠊSiO2 ⭷ୖ࡬⭷ཌ 3 nm ࡢ In0.38Ru0.62Oy⭷ࢆᡂ⭷ࡋࡓᚋ࡟ࠊ⭷ཌ 150 nm ࡢ ITO (In/Sn=0.9/0.1)⭷ࢆ✚ᒙࡋࡓࠋ᭱ᚋ࡟ࠊN2 㞺ᅖẼ࢞ࢫ࡛ 300Υࡢ⇕ฎ⌮ࢆࡋ࡚ࠊITO/In0.38Ru0.62Oy/SiO2/p-Si MOS ࢟ࣕࣃࢩࢱࢆస〇ࡋࡓࠋẚ㍑࡜ࡋ࡚ࠊྠᵝࡢ᪉ἲ࡛ࠊITO/SiO2/p-Si MOS ࢟ࣕࣃࢩࢱࢆస〇ࡋࡓࠋࡲࡓࠊTEM ほᐹࡍࡿヨᩱࡣࠊITO/In0.38Ru0.62Oy/SiO2/p-Si MOS ࢟ࣕࣃࢩࢱࡢ ITO/In0.38Ru0.62Oy
㟁ᴟࡢ࠶ࡿ㒊ศࢆࠊFIB(Focused ion beam)ຍᕤ࡟ࡼࡾษࡾฟࡋࡓࠋ

3. ⤖ᯝ
In1-xRuxOy ⭷ࡢᵓ㐀ࡣ Ru ⃰ᗘ࡟኱ࡁࡃᙳ㡪ࡉࢀࠊx ್ࡀ 0.0㹼0.24 ࡢ⠊ᅖ࡛ࡣ In2O3 ࡢ BCC ⤖ᬗᵓ㐀ࠊ0.30㹼0.83
ࡢ⠊ᅖ࡛ࡣ࢔ࣔࣝࣇ࢓ࢫᵓ㐀ࠊཬࡧ 0.93㹼1.0 ࡢ⠊ᅖ࡛ࡣ RuO2 ⭷ࡢṇ᪉ᬗᵓ㐀ࡢ 3 ࡘ࡟ศ㢮ࡉࢀࡿࡇ࡜ࡀ XRD ゎᯒࡼࡾศ࠿ࡗࡓࠋࡲࡓࠊ⭷ཌ 150 nm ࡢ In1-xRuxOy ⭷ࡢẚ᢬ᢠࡣࠊRu ⃰ᗘࡀ㧗ࡃ࡞ࡿ࡟ᚑࡗ࡚ᑠࡉࡃ࡞ࡾࠊx=0.62
࡛⣙ 1u10-4:cm ࡢప᢬ᢠࢆ♧ࡋࡓࠋࡉࡽ࡟ࠊ⭷ཌ 150 nm ࡢ In1-xRuxOy ⭷ࡢἼ㛗 600 nm ࡟࠾ࡅࡿ㏱㐣⋡ࡣࠊx=0.2 ௨ୗࡣ 70%௨ୖࡢ㧗㏱㐣⋡ࢆ♧ࡍࡀࠊx=0.5 ௨ୖ࡟࡞ࡿ࡜ 10%௨ୗ࡜㠀ᖖ࡟ᑠࡉ࡞㏱㐣⋡ࢆ♧ࡍࡇ࡜ࡀศ࠿ࡗࡓࠋࡇࡇ࡛ࠊ㏱㐣⋡ࡢᨵၿࢆ┠ⓗ࡟ࠊ− 86 −

In0.38Ru0.62Oy ⭷ࡢ⭷ཌ࡜㏱㐣⋡ࡢ㛵ಀࢆㄪ࡭ࡓࠋIn0.38Ru0.62Oy ⭷ࡢ⭷ཌࢆ 4 nm ௨ୗ࡟ⷧ⭷໬ࡍࡿ஦࡛ࠊἼ㛗 600 nm
࡟࠾ࡅࡿ㏱㐣⋡ࢆ 80%௨ୖ࡟ᨵၿ࡛ࡁࡿࡇ࡜ࢆぢฟࡋࡓࠋࡑࡇ࡛ࠊࡇࡢᐇ㦂⤖ᯝࢆᇶ࡟ࠊ⭷ཌ 3 nm ࡢᴟⷧ⭷ࡢ
In0.38Ru0.62Oy ⭷࡜Ἴ㛗 600 nm ࡛ࡢ㏱㐣⋡ࡀ 90%࡜㧗࠸ 150 nm ⭷ཌࡢ ITO ⭷࡜ࡢ✚ᒙᵓ㐀࡟ࡍࡿࡇ࡜࡛ࠊ㏱㐣⋡ࢆ86%࡟ᨵၿ࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
ḟ࡟ࠊITO/ In0.38Ru0.62Oy ✚ᒙ⭷ࡢ EWF ࢆồࡵࡿࡓࡵ࡟ࠊITO/ In0.38Ru0.62Oy/SiO2/p-Si MOS ࢟ࣕࣃࢩࢱࢆస〇ࡋࡓࠋᐜ㔞–㟁ᅽ ᐃ࠿ࡽ SiO2 ᥮⟬⭷ཌ࡜ࣇࣛࢵࢺࣂࣥࢻ㟁ᅽࡢ㛵ಀࢆᑟࡁฟࡋࠊࡑࡢ㛵ಀࡼࡾ EWF ್ࢆồࡵࡓࠋࣞࣇ
࢓ࣞࣥࢫࢺ࡜ࡋ࡚ࠊITO ༢⭷ࡢ EWF ್ࡶྠᵝࡢ᪉ἲ࡛ồࡵࡓࠋࡑࡢ⤖ᯝࠊITO ༢⭷ࡢ EWF ್ࡀ 4.8 eV ࡟ᑐࡋ࡚ࠊITO/ In0.38Ru0.62Oy ✚ᒙ⭷ࡢ EWF ࡣ 5.3 eV ࡜㧗࠸್ࢆ♧ࡋࡓࠋࡇࡢ㧗࠸ EWF ್ࡣࠊሗ࿌ࡉࢀ࡚࠸ࡿ RuO2 ༢⭷ࡢ EWF
್ࡢ 5.4 eV ࡜࡯ࡰྠ➼࡛࠶ࡗࡓ[1]ࠋ
ITO(150 nm)/In0.38Ru0.62Oy(3 nm)/SiO2(10.5 nm)/p-Si MOS ࢟ࣕࣃࢩࢱࡢࣔࣇ࢛ࣟࢪ࣮࡜⏺㠃཯ᛂࢆㄪ࡭ࡿࡓࡵ࡟ࠊ
᩿㠃 TEM ほᐹཬࡧ EDX ඖ⣲࣐ࢵࣉࢆホ౯ࡋࡓ⤖ᯝࢆᅗ 2 ࡟♧ࡍࠋᅗ 2(a)ࡢ᩿㠃 TEM ീࡼࡾࠊITO ⭷ࡣ᱁Ꮚࣃࢱ࣮ࣥࡀほᐹࡉࢀ⤖ᬗ໬ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋITO ⭷ࡢ⤖ᬗᵓ㐀ࡣࠊXRD ゎᯒࡼࡾᩳ᪉ᬗᵓ㐀࡛࠶ࡗࡓࠋࡲࡓࠊ
⭷ཌ 3 nm ࡢᴟⷧ⭷ࡢ In0.38Ru0.62Oy ࡣࠊᆒ୍⭷࡛ࠊࡋ࠿ࡶࠊ㟁Ꮚ⥺ᅇᢡࡀ ITO ⭷࡟㉳ᅉࡍࡿ௨እࡢࢫ࣏ࢵࢺཬࡧࣁ
࣮ࣟࣃࢱ࣮ࣥࡀㄆࡵࡽࢀ࡞࠸஦ࡼࡾࠊ࢔ࣔࣝࣇ࢓ࢫᵓ㐀࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋᅗ 2(a)࡜ྠࡌ࢟ࣕࣃࢩࢱࡢ SiࠊOࠊInࠊSnࠊཬࡧ Ru ࡢ EDX ඖ⣲࣐ࢵࣉࢆᅗ 2(b)࡟♧ࡍࠋྛᒙࡢ⏺㠃࡛㢧ⴭ࡞ඖ⣲ࡢ┦஫ᣑᩓࡶㄆࡵࡽࢀࡎࠊࡁࢀ࠸
࡞⏺㠃ࢆ⥔ᣢࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋ

ᅗ㸰 ITO(150 nm)/In0.38Ru0.62Oy(3 nm)/SiO2/p-Si ࢟ࣕࣃࢩࢱࡢ (a) ᩿㠃 TEM ീཬࡧ(b) EDX ඖ⣲࣐ࢵࣉ

4. ⤖ㄽ
⭷ཌ 3 nm ࡢᴟⷧ⭷ࡢ In0.38Ru0.62Oy ᒙࢆ⏝࠸ࡓ ITO(150 nm)/In0.38Ru0.62Oy(3 nm)✚ᒙᵓ㐀ࢆ⏝࠸ࡿࡇ࡜࡛ࠊ᭷ᶵ EL
ࡢ㝧ᴟᮦᩱ࡜ࡋ࡚せồࡉࢀ࡚࠸ࡿప᢬ᢠ(⣙ 1u10-4:cm)ࠊ㧗㏱㐣⋡(86%)ཬࡧ㧗 EWF(5.3 eV)ࢆ㐩ᡂ࡛ࡁࡿࡇ࡜ࢆ᫂
ࡽ࠿࡟ࡋࡓࠋ
ࡇࡢ✚ᒙᵓ㐀ࡢ᩿㠃 TEM ほᐹཬࡧ EDX ඖ⣲࣐ࢵࣉࡼࡾࠊ
In0.38Ru0.62Oy ᒙࡀ࢔ࣔࣝࣇ࢓ࢫᵓ㐀࡛࠶ࡾࠊࡋ࠿ࡶྛ⏺㠃ࡢ཯ᛂࡣㄆࡵࡽࢀࡎᛴᓧ࡞⏺㠃ࢆ⥔ᣢࡋ࡚࠸ࡿ஦ࡶ᫂ࡽ࠿࡟࡛ࡁࡓࠋ
ᮏෆᐜ࡟ࡘ࠸࡚ࠊAVS 61st Meeting [2]࡛Ⓨ⾲ཬࡧ Thin Solid Films ࡬ᢞ✏୰࡛࠶ࡿࠋ
5. ཧ⪃ᩥ⊩[1] T. Nabatame et al., Mater. Sci. Semicond. Process. 9(2006)975-979.
[2] S. Yamamoto et al., “Improvement of effective work function and transmittance of ITO/ultra-thin In1-xRuxOy stack
structure”, AVS 61st International symposium&exhibition, EM-TuP8, Baltimore, Maryland, USA, November 9-14, 2014.
㸦ඹྠ◊✲ศ㔝㸸⁐᥋ᶵᵓᏛศ㔝㸧− 87 −

− 88 −

− 89 −

␗┦⏺㠃ࢆ᭷ࡍࡿ」ྜ⤌⧊㗰ࡢ⤌⧊ゎᯒᓥ᰿኱Ꮫ⥲ྜ⛉Ꮫ◊✲ᨭ᥼ࢭࣥࢱ࣮
ᯘὈ㍜㸬 ┠ⓗ
⮬ື㌴ࢆ௦⾲࡜ࡍࡿ⛣ືయ⟂యᮦᩱࢆ୰ᚰ࡟㸪᭦࡞ࡿ㧗ᛶ⬟໬ࡸ㧗ຠ⋡໬ࡢࡓࡵ࡟ࢥࢫࢺࣃࣇ࢛࣮࣐ࣥࢫ
ࡢࡼ࠸㧗ẚᙉᗘᮦᩱࡀᚲせ࡜ࡉࢀ࡚࠸ࡿ㸬Ⅳ⣲㗰ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺࡣపࢥࢫࢺ࡛ඃࢀࡓẚᙉᗘࢆ♧ࡍ⤌⧊࡛࠶ࡿࡀ㸪ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺࡔࡅ࡛ᵓᡂࡉࢀࡿ⤌⧊ࡣᘏᛶ࡟ஈࡋ࠸ࡇ࡜࠿ࡽ⇕ฎ⌮࡟ࡼࡿ」┦⤌⧊໬㸪௚ࡢ㗰✀࡜ࡢ」ྜ໬࡞࡝࡟ࡼࡾᘏᛶࡢᨵၿࡀᅗࡽࢀ࡚࠸ࡿ㸬ࡲࡓᐇ㝿࡟⟂య࡞࡝࡬ᛂ⏝ࡍࡿ㝿࡟ࡣ⁐᥋ࡀ⾜ࢃࢀࡿࡇ࡜ࡀከࡃ㸪⁐᥋㒊఩࡟⌧ࢀࡿ⇕ᙳ㡪㒊࡟࠾࠸࡚ࡣ‽Ᏻᐃ┦ࢆྵࡴ」㞧࡞⤌⧊ࡀ⌧ࢀࡿ㸬」┦㗰ࡸ᥋ྜ㒊఩࡟ぢࡽࢀࡿ」㞧࡞⤌⧊࡟࠾࠸࡚ᆒ୍ఙࡧࡸ◚ቯ㠌ᛶ್ࢆᨵၿࡍࡿࡓࡵ࡟ࡣ㸪㝆అ࠿ࡽ୙ᆒ୍ኚᙧ㛤ጞࢆ⤒࡚◚ቯ࡟⮳ࡿᣲືࢆ▱ࡾ㸪᪩ᮇࡢ◚ቯࡸ୙ᆒ୍ኚᙧࢆᢚไࡍࡿࡇ࡜ࡀᚲせ࡜࡞ࡿ㸬㏆ᖺࡢ」ྜ⤌⧊࡟࠾ࡅࡿኚᙧᣲື࡟㛵ࡍࡿ◊✲㐍ᒎ࡟క࠸㸪ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺࡸࣇ࢙ࣛ࢖ࢺࡢࡼ࠺࡞ᵓᡂ⤌⧊ࡈ࡜ࡢኚᙧᣲືࢆ
᫂ࡽ࠿࡟ࡍࡿࡔࡅ࡛࡞ࡃ㸪ྛ⤌⧊㛫࡟࠾ࡅࡿኚᙧఏ㐩ᣲືࡶ㔜せ࡜࡞ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗ࡚ࡁࡓ㸬࣐ࣝࢸࣥࢧ࢖ࢺ㗰ࡢᚤ⣽⤌⧊࡜ኚᙧᣲືࡢ㛵ಀ࡟ࡘ࠸࡚ࡣ౫↛࡜ࡋ࡚୙᫂࡞Ⅼࡀከ࠸ࡀ㸪㏆ᖺࡢほᐹ⿦⨨࠾ࡼࡧゎᯒᡭἲࡢᨵⰋ࡟క࠸ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺ≉᭷ࡢ㝵ᒙᆺ⤌⧊ࡢヲ⣽ࡸ㸪㝵ᒙᆺ⤌⧊ࡀረᛶኚᙧࡸ◚ቯᣲື࡟ཬ
ࡰࡍᙳ㡪࡟ࡘ࠸࡚ඛ㐍ⓗ◊✲ࡀሗ࿌ࡉࢀࡿࡼ࠺࡟࡞ࡗ࡚ࡁࡓ>@㸬ࡋ࠿ࡋ㸪ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺࡢᚤ⣽ᵓ㐀࡜ኚᙧᣲືࡢ㛵ಀࡣ༑ศ࡟᫂ࡽ࠿࡟ࡉࢀ࡚࠾ࡽࡎ㸪ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺࡀ௚ࡢ┦࡜」ྜ໬ࡉࢀࡓሙྜࡢኚᙧᣲ
ືࢆゎ᫂ࡍࡿୖ࡛㞀ᐖ࡜࡞ࡗ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ᫖ᖺᗘ࡟ᘬࡁ⥆ࡁ㸪ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺ㗰ࡢ⤌⧊ࡀᶵᲔⓗ≉ᛶ࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚㸪ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺ࡟Ꮡᅾࡍࡿ࠸ࡃࡘ࠿ቃ⏺ᵓ㐀࡟ὀ┠ࡋ࡞ࡀࡽ᫂ࡽ࠿࡟ࡋ㸪ࣇ࢙ࣛ࢖ࢺ࣐ࣝࢸࣥࢧ࢖ࢺ」ྜ⤌⧊㗰ࡢ␗┦⏺㠃࡟࠾ࡅࡿኚᙧఏ㐩ᣲືࢆゎᯒࡍࡿࡓࡵࡢᇶ♏ࢆ☜❧ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿ㸬㸬 ◊✲᪉ἲ
ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺࡣ࣐ࣝࢸࣥࢧ࢖ࢺኚែ᫬࡟⏕ࡌࡓᬗⒷ㠃ࢆ⢏⏺࡜ࡍࡿⷧ࠸ᯈ≧⤖ᬗࡢ㞟ྜ࡛࠶ࡾ㸪㞟ྜయࡣࢫࢣ࣮ࣝ࡟ᛂࡌ࡚㝵ᒙⓗ࡞ᵓ㐀ࢆ♧ࡍ㸬㝵ᒙᵓ㐀ࡣ኱ࡁ࡞ᵓ㐀࠿ࡽ㡰࡟㸪ᪧ࣮࢜ࢫࢸࢼ࢖ࢺ⢏⏺㸪࡯
ࡰྠࡌᬗⒷ㠃ࢆ᭷ࡍࡿࣃࢣࢵࢺ㸪ࣃࢣࢵࢺෆ࡛࡯ࡰྠࡌ⤖ᬗ᪉఩ࢆ᭷ࡍࡿࣈࣟࢵࢡ㸪ࡑࡋ࡚᭱ࡶᑠࡉ࡞ᵓ㐀࡛࠶ࡿᚤ⣽࡞ᯈ≧ࡢࣛࢫ⤖ᬗ⢏ࡀᣲࡆࡽࢀࡿ㸬ࡑࡢෆ㸪ᪧ࣮࢜ࢫࢸࢼ࢖ࢺཬࡧࣃࢣࢵࢺቃ⏺ࡣ㞄᥋ࡍࡿ⤌⧊ࡢ⤖ᬗ᪉఩ࡀ኱ࡁࡃ␗࡞ࡾ㸪ኚᙧ࡟࠾࠸࡚ࡣ⢏⏺࡜ྠᵝࡢാࡁࢆࡍࡿ㸬ࣈࣟࢵࢡቃ⏺ࡶ⢏⏺࡜ྠᵝࡢാࡁࢆࡍࡿ࡜࠸࠺ሗ࿌ࡶ࠶ࡿࡀ>@㸪ቃ⏺㒊⤌⧊ࡀ㌿఩㐠ື࡞࡝ࡢኚᙧ⣲㐣⛬࡟ཬࡰࡍᙳ㡪ࡣ୙࡛᫂࠶ࡿ㸬ࡲࡓ㸪ࣛࢫቃ⏺ࡀኚᙧ᫬࡟ᯝࡓࡍᙺ๭࡟ࡘ࠸࡚ࡶ᫂ࡽ࠿࡟࡞ࡗ࡚࠸࡞࠸㸬ࡑࡇ࡛㸪ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺ࡟࠾ࡅࡿࣈࣟ
ࢵࢡཬࡧࣛࢫቃ⏺㒊ࡢ⤌⧊ゎᯒࢆ⾜࠸㸪ྛቃ⏺ࡀኚᙧᣲື࡟୚࠼ࡿᙳ㡪ࢆ᫂ࡽ࠿࡟ࡋࡓୖ࡛㸪ࡑࡢ⤖ᯝࢆ⏝࠸࡚ࡼࡾ」㞧࡞」ྜ⤌⧊㗰ࡢ⤌⧊ゎᯒࢆ⾜࠺ࡇ࡜࡟ࡋࡓ㸬౪ヨᮦ࡟ࡣ )H0Q㸦PDVV㸧ᴟపⅣ⣲㗰ࢆ⏝࠸㸪⇕ฎ⌮ࡣ Υ࡛  ศ㛫ಖᣢᚋị㣗ሷỈ↝ධࢆ⾜ࡗࡓ㸬ቃ⏺㒊࡬ࡢᒁᡤኚᙧࢆᑟධࡍࡿࡓࡵ࡟࣐࢖ࢡࣟࣅ
ࢵ࣮࢝ࢫヨ㦂ᶵࢆ⏝࠸㸪ᅽ⑞࿘㎶ࡢ⤌⧊࡟ࡘ࠸࡚ኚᙧ๓࡜ኚᙧᚋࡢẚ㍑ࢆ⾜࠺࡜࡜ࡶ࡟㸪཰᮰࢖࢜ࣥࣅ࣮࣒
ຍᕤ㸦),%㸧࡟ࡼࡾኚᙧ⤌⧊ࡢヨᩱࢆస〇ࡋ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾㸦7(0㸧ほᐹࢆ⾜ࡗࡓ㸬− 90 −㸬 ⤖ᯝ
㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾࠾ࡼࡧ㟁Ꮚ⥺ᚋ᪉ᩓ஘ᅇᢡ㸦(%6'㸧࡟ࡼࡾᐃࡋࡓࣅࢵ࣮࢝ࢫᅽ⑞ᑟධ๓ᚋ࡟࠾ࡅࡿᅽ⑞㏆ഐ㡿ᇦࡢ⤖ᬗ᪉఩ゎᯒࢆ⾜ࡗࡓ㸬ᅗ 㸦D㸧࡟ࡣኚᙧᚋࡢ LPDJHTXDOLW\ ࣐ࢵࣉࢆᅗ㸯㸦E㸧
࡟ࡣኚᙧ๓ᚋ࡟࠾ࡅࡿ᪉఩ᕪࣉࣟࣇ࢓࢖ࣝࢆ♧ࡍ㸬ᑦ㸪ኚᙧᚋࡢヨᩱ࡟㛵ࡋ࡚ࡣ⾲㠃ࢆⷧࡃ㸦ȣP ௨ෆ㸧◊☻ࡋ㸪᭱⾲㠃ࡣ㝖ཤࡋ࡚࠿ࡽ᪉఩ ᐃࢆ⾜ࡗ࡚࠸ࡿ㸬ኚᙧ๓㸦↝ධࢀࡲࡲᮦ㸧ࡢ᪉఩ᕪࣉࣟࣇ࢓࢖ࣝࢆぢࡿ࡜㸪 ᗘ⛬ᗘࡢ᪉఩ᕪࢆᣢࡘቃ⏺࡜  ᗘ௨ୗࡢపゅࣛࢫቃ⏺ࡀ஺஫࡟⌧ࢀࡿ㸬ࡇࡢࡼ࠺࡞᪉఩ศᕸࡣ༢୍ࣈࣟࢵࢡෆ࡟஧ࡘ
ࡢ࣐ࣝࢸࣥࢧ࢖ࢺࣂࣜ࢔ࣥࢺࡀᏑᅾࡋ㸪ࡑࢀࡒࢀࡀ஺஫࡟ฟ⌧ࡍࡿࡓࡵ㉳ࡁࡿ㸬୍᪉㸪ኚᙧᚋࡣ┦ᑐⓗ᪉఩ᕪࡣࡑࢀ࡯࡝ኚࢃࡽ࡞࠸ࡶࡢࡢ㸪
ཎⅬ࠿ࡽࡢ᪉఩ᕪࡀኚ໬ࡋ࡚࠸ࡿ㸬ࡇࡢ⤌ᡂࡢᴟపⅣ⣲㗰࡛ࡣᅽᘏ࡟
ࡼࡾ኱ࡁ࡞ṍࢆᑟධࡍࡿ࡜ࣈࣟࢵࢡෆࡢ┦ᑐⓗ᪉఩ᕪࡀᑠࡉࡃ࡞ࡿ
ࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿࡀ>@㸪ᚤどⓗ࡟࡝ࡢࡼ࠺࡞ᶵᵓ࡛ኚ໬ࡋ࡚࠸
ࡿ࠿ࡣ᫂ࡽ࠿࡛࡞࠸㸬ࡑࡇ࡛㸪),% ࢆ⏝࠸࡚ᅽ⑞࿘㎶㒊࠿ࡽⷧ⭷ࢆస〇ࡋ㸪7(0 ほᐹࢆ⾜ࡗࡓ㸬),% ࢆ⏝࠸ࡓ 7(0 ほᐹ࡟࠾࠸࡚ࡣ࡯ࡰྠ୍ど㔝࡛ࡢኚᙧ๓ᚋࡢほᐹࡣ୙ྍ⬟࡛࠶ࡿࡓࡵ㸪ኚᙧ㒊⤌⧊࡜ኚᙧ๓⤌⧊ࢆࡑࢀࡒࢀ␗࡞ࡿ㒊఩࠿ࡽษࡾฟࡋ࡚ほᐹࢆ⾜ࡗࡓ㸬ᅗ  ࡟ኚᙧ๓ᚋࡢࣛࢫࢆ♧ࡍ㸬ኚᙧ๓ࡣⷧ࠸ᯈ≧ࡢ⤌⧊ࡀẚ㍑ⓗ㩭᫂࡟ほᐹࡉࢀࡿࡀ㸪ኚᙧᚋࡣࣛࢫቃ⏺ࢆྵࡵ࡚୙㩭᫂࡞ቃ⏺ᵓ㐀࡜࡞ࡗ࡚࠾ࡾ㸪᫂どᅗ㸯㸬㸦a㸧EBSD ࡟ࡼࡾ ᐃࡋࡓᅽ⑞௜㏆ࡢ image quality ࣐ࢵࣉ㸪㸦b㸧㸦a㸧୰ࡢⓑ⥺ୖ࡟ἢࡗ࡚ A ࢆཎⅬ࡜ࡋࡓ᪉఩ᕪࣉࣟࣇ࢓࢖ࣝ࡜ኚᙧ๓
ࡢ࡯ࡰྠࡌ఩⨨࡟࠾ࡅࡿࣉࣟࣇ࢓࢖
ࣝࡢẚ㍑㸬

㔝ീほᐹࡢ⤖ᯝ࠿ࡽࣛࢫෆࡢṍࡀቑ࠼࡚࠸ࡿࡇ࡜ࡀண ࡉࢀࡿ㸬㌿఩⤌⧊ࡶ㓄ิ࡞࡝࡟ኚ໬ࡀぢࡽࢀࡿࡀ㸪ኚ໬ࢆᐃ㔞ࡍࡿࡲ࡛࡟ࡣ⮳ࡗ࡚࠸࡞࠸㸬௒ᚋࡣ㏱㐣 (%6' ἲ࡟ࡼࡿ᪉఩࣐ࢵࣆࣥࢢࢆඖ࡟ᐃ㔞ⓗホ౯ࢆ⾜࠸㸪ቃ⏺ᵓ㐀ࡢኚ໬ࢆලయⓗ࡟᫂ࡽ࠿࡟ࡍࡿ㸬㸬 ⤖ㄽ
ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺࣈࣟࢵࢡෆࡢቃ⏺࡟ཬࡰࡍኚᙧࡢᙳ㡪ࢆ⤖ᬗ᪉఩ࡢほⅬ࡛ホ౯ࡋࡓ㸬ࣛࢫቃ⏺ࡢᮍኚᙧᮦ࡞ࡽࡧ࡟ኚᙧᮦࡢ 7(0ほᐹࢆ⾜࠸㸪࿘㎶㌿఩ࡸᙧ≧ࡢゎᯒࢆ⾜ࡗࡓ㸬௒ᚋࡣࣛࢫ௨እࡢቃ⏺
ᵓ㐀ࢆྵࡵ࡚ᐃ㔞ⓗ࡟ゎᯒࡋ㸪ࣇ࢙ࣛ࢖ࢺ㗰࡜ࡢ㐪࠸ࢆ᫂ࡽ࠿࡟ࡋࡓ
ୖ࡛」ྜ⤌⧊㗰ࡢ␗┦⏺㠃࡟࠾ࡅࡿኚᙧఏ㐩ᣲືࡢゎ᫂ࢆ┠ᣦࡍ㸬
ᅗ 2㸬㸦a㸧ኚᙧ๓࡜㸦b㸧ኚᙧᚋ࡟࠾
ࡅࡿࣛࢫࡢ᫂ど㔝ീ㸬㸬 ཧ⪃ᩥ⊩

[1] H. Na, S. Nambu, M. Ojima, J. Inoue, T. Koseki, Metall. Mater. Trans. A 45 (2014) 5029-5043.
[2] S. Morito, H. Yoshida, T. Maki, X. Huang, Mater. Sci. Eng. A 438-440 (2006) 237-240.
[3] X. Huang, S. Morito, N. Hansen, T. Maki, Metall. Mater. Trans. A 43 (2012) 3517-3531.
㸦ඹྠ◊✲ศ㔝㸸⁐᥋ᶵᵓᏛศ㔝㸧− 91 −

࣮ࣞࢨษ᩿࡟࠾ࡅࡿࣅ࣮࣒࡜ᮦᩱࡢ┦஫స⏝࡞ࡽࡧ࡟࣮ࣞࢨຍᕤ⌧㇟ࡢゎ᫂୕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 1)㸬୍᪉㸪࣮ࣞࢨษ᩿ࡢ㧗㏿໬ཬࡧ㧗ရ㉁໬ࡀᖖ࡟ồࡵࡽࢀ࡚࠾ࡾ㸪ࡑࡢࡓࡵ࡟ࡣ࣮ࣞࢨษ
᩿ࡢຍᕤ⌧㇟ࡢゎ᫂ࡀ㔜せ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬࣮ࣞࢨษ᩿࡟࠾࠸࡚㸪㧗࠸ษ᩿ရ㉁ࢆ㐩ᡂࡍࡿࡓࡵ࡟ࡣ㸪ࢻࣟࢫࡀ⿕ຍᕤ≀ࡢ⿬㠃࠿ࡽࢫ࣒࣮ࢬ࡟᤼ฟࡉࢀࡿᚲせࡀ࠶ࡾ 2)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㸪㔠ᒓࡀྍどගࢆ㏱㐣ࡋ࡞࠸ࡇ࡜࡞࡝࠿ࡽ㸪࣮ࣞࢨษ᩿㒊ࢆ┤᥋ࡑࡢሙほᐹࡍࡿࡇ࡜ࡣᅔ㞴࡛࠶ࡿ㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ㏆ᖺ㛤Ⓨࡉࢀࡓ㧗㍤ᗘ X ⥺㏱㐣ᆺ⁐᥋᥋ྜᶵᵓ 4 ḟඖྍど໬ࢩࢫࢸ࣒ࢆ฼⏝ࡋ㸪࣮ࣞࢨษ᩿㒊ࡢࡑࡢሙほᐹ࡟ࡼࡿ㸪࣮ࣞࢨษ᩿ࡢᇶ♏⌧㇟ࡢゎ᫂ࢆ┠ᶆ࡜ࡋ࡚࠸ࡿ㸬๓ሗ࡛ࡣ㸪X ⥺㏱㐣᧜ᙳ࡟ࡼࡾ࣮ࣞࢨษ᩿㒊ࡢ┤᥋ࣜ࢔ࣝࢱ࢖࣒ほᐹࢆヨࡳ㸪ษ᩿㏿ᗘࡢኚ໬࡟క࠸ษ᩿ࣇࣟࣥࢺࡢᙧ≧ࡀኚ໬ࡍࡿࡇ࡜
ࡀ☜ㄆࡉࢀࡓ㸬ࡑࡇ࡛ᮏሗ࡛ࡣ㸪ษ᩿ࣇࣟࣥࢺࡢᙧ≧ࢆᐃ㔞໬ࡍࡿࡇ࡜࡟ࡼࡾホ౯ࡋ㸪ྛ✀ษ᩿᮲௳ࡀࡑࢀ
࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸᳨࡚ウࡋࡓ㸬
2. ᐇ㦂᪉ἲ ୍⯡ⓗ࡞㓟⣲࢔ࢩࢫࢺ࢞ࢫ࡟ࡼࡿ㌾㗰ࡢ࣮ࣞࢨษ᩿ࢆ᝿ᐃ
ࡋ㸪౪ヨᮦ࡜ࡋ࡚㸪ࡳࡀࡁᲬ㗰⏝୍⯡㗰ᮦ SGD3M ࢆ⏝࠸ࡓ㸬໬Ꮫ⤌ᡂࢆ Table 1 ࡟♧ࡍ㸬ヨ㦂∦ᑍἲࡣ 41204mm ࡜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 TruDisk16002 ཬࡧษ᩿࣊ࢵࢻࢆ౑⏝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࢔ࢩࢫࢺ࢞ࢫࢆ O2 ࡜ࡋ㸪ษ᩿㏿ᗘ
ࢆ 0.5㹼7 m/min㸪࢔ࢩࢫࢺ࢞ࢫᅽຊࢆ 0.25㹼1MPa ࡜ኚ໬ࡉࡏ
࡚ᐇ㦂ࢆ⾜ࡗࡓ㸬ࡑࡢ㝿㸪࣮ࣞࢨฟຊ 2kW㸪↔Ⅼࡣࡎࡋ㊥㞳-1mm㸪ࣀࢬࣝࢠࣕࢵࣉ 1mm ཬࡧษ᩿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㸪࣐࢖ࢡࣟࣇ࢛
࣮࢝ࢫ X ⥺Ⓨ⏕⿦⨨㸦᭱㧗ゎീᗘ 4ȝm㸪᭱኱㟁ᅽ 230kV㸪᭱኱㟁ὶ 1mA㸧ࢆ౑⏝ࡋ㸪ヨ㦂∦ࡢഃ᪉࠿ࡽ࣮ࣞࢨษ᩿㒊ࢆ 2ḟඖ࡛ほᐹࡋࡓ㸬− 92 −

3. ᐇ㦂⤖ᯝཬࡧ⪃ᐹ ๓ሗ࡟࡚㸪ษ᩿㏿ᗘࡢቑຍ࡟ࡼࡾษ᩿ࣇࣟࣥࢺࡢᙧ≧ࡀኚ໬ࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀ࡚࠸ࡿ㸬ࡑࡇ࡛㸪ษ᩿ࣇࣟࣥࢺᙧ
≧ࡀኚ໬ࡍࡿ⌧㇟࡟ࡘ࠸᳨࡚ウࡍࡿࡓࡵ㸪ࡑࡢᐃ㔞໬ࢆヨࡳࡓ㸬ᴋඖࡽࡢሗ࿌ 3)ࢆཧ⪃࡟㸪Fig.3 ࡢࡼ࠺࡟ษ᩿ࣇࣟࣥࢺࡢ
ഴᩳゅ(Inclination angle of cutting front)㸪㐜ࢀゅ(Lag angle)ཬࡧ
㐜ࢀ㔞(Lag distance)ࢆࡑࢀࡒࢀ

ᐃࡋࡓ㸬࡞࠾㸪࢔ࢩࢫࢺ࢞

ࢫᅽຊ 1MPa ࡛ษ᩿㏿ᗘ 1m/min ࡢ࡜ࡁ㸪ཬࡧ࢞ࢫᅽ 0.5MPa
࡛㏿ᗘ 0.5m/min ࡢ࡜ࡁࡣ㸪ࢭࣝࣇࣂ࣮ࢽࣥࢢࡢⓎ⏕࡟ࡼࡾᖖ࡟ษ᩿ࣇࣟࣥࢺᙧ≧ࡀኚ໬ࡋ࡚࠸ࡓࡓࡵ㸪ୖグࡢ ᐃᑐ㇟࠿ࡽ㝖እࡋࡓ㸬
 Fig.4(a)࡟ྛ࢔ࢩࢫࢺ࢞ࢫᅽຊ࡟࠾ࡅࡿษ᩿㏿ᗘ࡜ษ᩿ࣇࣟࣥࢺࡢഴᩳゅ࡜ࡢ㛵ಀࢆ♧ࡍ㸬ษ᩿᮲௳࡟࠿࠿
ࢃࡽࡎ㸪 ᐃࡉࢀࡓഴᩳゅࡣ᭱኱࡛ࡶ 4°⛬ᗘ࡛࠶ࡗࡓ㸬ࡲࡓ㸪ษ᩿㏿ᗘࢆኚ໬ࡉࡏࡓ࡜ࡁ࡟ഴᩳゅࡀኚ໬ࡋ࡚࠸ࡿࡀ㸪ࡑࡢ᫂☜࡞ഴྥࡣぢࡽࢀ࡞࠸㸬ࡼࡗ࡚㸪ษ᩿ࣇࣟࣥࢺୖ㒊௜㏆࡟࠾ࡅࡿഴᩳゅࡣ㸪ษ᩿㏿ᗘࡀኚ໬ࡋ࡚ࡶ࠶ࡲࡾኚࢃࡽ࡞࠸ࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪Fig.4(b)࡟ྛ࢔ࢩࢫࢺ࢞ࢫᅽຊ࡟࠾ࡅࡿษ᩿㏿ᗘ࡜㐜ࢀゅ࡜ࡢ㛵ಀࢆ♧ࡍ㸬ษ᩿㏿ᗘࢆቑຍࡉࡏࡿ࡜㸪㐜ࢀゅࡀῶᑡࡍࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡼࡗ࡚㸪⁐᥋㏿ᗘࡢቑຍ࡟
ࡼࡾ㸪ษ᩿ࣇࣟࣥࢺୗ㒊ࡀヨ㦂∦⾲㠃࡟ᑐࡋᆶ┤࡞≧ែ࠿ࡽᚎࠎ࡟ഴᩳࡋ࡚࠸ࡃࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡲࡓ㸪๓ሗ࡟࠾࠸࡚Ⰻዲ࡞ษ᩿᮲௳ࡀ 2㹼3m/min ࡛࠶ࡗࡓࡇ࡜࠿ࡽุ᩿ࡍࡿ࡜㸪ษ᩿ࣇࣟࣥࢺࡢ᭱㐺࡞㐜ࢀゅࡣ 70
㹼80°⛬ᗘ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡉࡽ࡟㸪Fig.4(c)࡟ྛ࢔ࢩࢫࢺ࢞ࢫᅽຊ࡟࠾ࡅࡿษ᩿㏿ᗘ࡜㐜ࢀ㔞࡜ࡢ㛵ಀࢆ♧ࡍ㸬ษ᩿㏿ᗘࢆቑຍࡉࡏࡿ࡜㸪㐜ࢀ㔞ࡶቑຍࡍࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡼࡗ࡚㸪⁐᥋㏿ᗘࡢቑຍ࡟ࡼࡾ㸪ษ᩿ࣇࣟࣥࢺୗ㒊ࡢᚋ᪉࡬ࡢ㐜ࢀࡀቑຍࡍࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡲࡓ㸪๓㏙ࡢⰋዲ࡞ษ᩿᮲௳࠿ࡽุ᩿ࡍࡿ࡜㸪ษ᩿ࣇࣟࣥࢺࡢ᭱㐺࡞㐜ࢀゅࡣ 0.4㹼0.6mm ⛬ᗘ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࢀࡽࡢ⌧㇟ࡣ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ࢀࡿࡓࡵ 4)࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬 ௨ୖࡼࡾ㸪࣮ࣞࢨษ᩿࡟࠾࠸࡚Ⰻዲ࡞ษ᩿ࢆ㐩ᡂࡍࡿࡓࡵࡢ㸪᭱㐺࡞ษ᩿ࣇࣟࣥࢺᙧ≧ࡢ⠊ᅖࡀᏑᅾࡍࡿ
ࡇ࡜ࡀ♧၀ࡉࢀࡿ㸬௒ᚋࡣ㸪ษ᩿ࣇࣟࣥࢺᙧ≧࡜ࢻࣟࢫࡢ᤼ฟᣲື࡜ࡢ㛵ಀࡢゎ᫂࡟ࡘ࠸࡚ྲྀࡾ⤌ࢇ࡛࠸ࡃ㸬ཧ⪃ᩥ⊩1) ࣮ࣞࢨ࣮Ꮫ఍㸸࣮ࣞࢨ࣮ࣉࣟࢭࢩࣥࢢᛂ⏝౽ぴ㸪࢚ࢾࢪ࣮ࢸ࢕࣮(2006)㸪164.
2) ᪂஭Ṋ஧㸪ἅྡ᐀᫓㸪ᐑᮏຬ㸸࣮ࣞࢨ࣮ษ᩿ຍᕤ㸪࣐ࢩࢽࢫࢺฟ∧㸪(1994)㸪5.
3) ᴋඖ୍⮧㸪኱㇂᭷࿃㸸ษ᩿๓᪉ᙧ≧࠿ࡽࡳࡓ⁐⼥㔠ᒓ᤼ฟᣲືࡢ᳨ウ㸪⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫせ㸪71㸪(2002)㸪284-285.
4) 㔠ᒸඃ㸸⤮࡜ࡁ࣮ࣞࢨຍᕤࡢᐇົ̿సᴗࡢ຺࡝ࡇࢁ࡜ࢺࣛࣈࣝᑐ⟇̿㸪᪥หᕤᴗ᪂⪺♫(2007)㸪14-15.

㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨ᥋ྜᶵᵓᏛศ㔝㸧− 93 −

࣮ࣞࢨ↷ᑕࣃࢫࡢ㔜ࡡྜࢃࡏ࡟ࡼࡿᶞ⬡㸫㔠ᒓ┤᥋᥋ྜࡢ⥅ᡭᙉᗘ࡟㛵ࡍࡿᇶ♏ⓗ◊✲㸦ᆅ⊂㸧໭ᾏ㐨❧⥲ྜ◊✲ᶵᵓ⏘ᴗᢏ⾡◊✲ᮏ㒊ᕤᴗヨ㦂ሙ    〇ရᢏ⾡㒊⏕⏘ࢩࢫࢸ࣒࣭〇㐀ᢏ⾡ࢢ࣮ࣝࣉḈᗞ ὒᖹ
㸯㸬┠ⓗ࣮ࣞࢨ࡟ࡼࡿᶞ⬡㸫㔠ᒓ┤᥋᥋ྜ㸦LAMP ᥋ྜ㸧࡛ࡣ㸪ከࡃࡢᮦᩱ࡛ẕᮦ௨ୖࡢᘬᙇࡏࢇ᩿ᛂຊࡀᚓࡽࢀ
ࡿࡇ࡜ࡀ☜ㄆࡉࢀ 1)㸪2)㸪3)㸪᥋╔ᮦ࡜ẚ࡭⤒ᖺຎ໬ࡢᑡ࡞࠸᥋ྜἲ࡜ࡋ࡚ᐇ⏝໬ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬
LAMP ᥋ྜࡢᐇ⏝໬࡟ࡣ㸪᥋ྜ㠃✚ࡢᣑ኱࡟ࡼࡿ⥅ᡭᙉᗘࡢྥୖࡀồࡵࡽࢀ࡚࠾ࡾ㸪ගᏛ⣔ࡢ᭱㐺໬࡟ࡼࡿ↷ᑕ㠃✚ࡢᣑ኱ࡸࣅ࣮࣒ࣉࣟࣇ࢓࢖ࣝࡢᆒ㉁໬ࡀ୍⯡ⓗ࡛࠶ࡿ㸬ࡋ࠿ࡋ㸪ᑡ㔞ከရ✀⏕⏘࡛ࡣ㢖⦾࡞ගᏛ⣔ࡢኚ᭦ࡀ⏕ࡌࡿࡓࡵ㸪ẁྲྀࡾ᭰࠼ࡢ᫬㛫ࣟࢫࡀ኱ࡁࡃ࡞ࡿ࡜࠸࠺ၥ㢟ࡀ࠶ࡿ㸬ࡇࡢᑐ⟇࡜ࡋ࡚㸪」ᩘࣃࢫ
ࡢ࣮ࣞࢨࢆ࣮࢜ࣂ࣮ࣛࢵࣉࡉࡏ㸪᥋ྜ㠃✚ࢆᣑ኱ࡍࡿ᪉ἲࡀ⪃࠼ࡽࢀࡿࡀ㸪ࣃࢫࡈ࡜࡟ᮦᩱࡢᐦ╔ᗘࡀኚ໬ࡍࡿࡓࡵ㸪Ᏻᐃࡋࡓ᥋ྜᙉᗘࢆ☜ಖࡍࡿࡇ࡜ࡀㄢ㢟࡜࡞ࡗ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪」ᩘࣃࢫ࡟ࡼࡿ LAMP ᥋ྜࡢ᥋ྜ㠃✚ᣑ኱ࢆ┠ⓗ࡟㸪࣮ࣞࢨ↷ᑕࡢࣃࢫᩘ࡜᥋ྜᙉᗘࡢ㛵ಀ
ࢆẚ㍑ࡋ㸪᥋ྜᙉᗘࡢᨵၿᡭἲ࡟ࡘ࠸࡚ᇶ♏ホ౯ࢆ⾜࠺㸬㸰㸬◊✲᪉ἲ ᮏ◊✲ࡣ㸪࣮ࣞࢨࡢ↷ᑕࣃࢫᩘࡸヨ㦂∦ࡢᣊ᮰᮲௳ࡀ␗࡞ࡿ LAMP ᥋ྜ⥅ᡭࡢᘬᙇࡏࢇ᩿ᛂຊࢆẚ㍑ࡋ㸪⥅ᡭᙉᗘྥୖࡢせⅬ࡟ࡘ࠸࡚ᩚ⌮ࡋࡓ㸬Fig.1 ࡟ LAMP ᥋ྜࡢᐇ㦂⿦⨨ࢆ♧ࡍ㸬ᐇ㦂࡟ࡣἼ㛗 807nm ࡢ༙ᑟయ࣮ࣞࢨࢆ౑⏝ࡋࡓ㸬ࣅ࣮࣒ᙧ≧ࡣ 0.6mm×12mm ࡢࣛ࢖ࣥ≧࡜ࡋ㸪ฟຊ 300W㸪㏿ᗘ 3.0mm/s㸦ࣃ࣮࣡ᐦᗘ
51.4W/mm2㸧࡛↷ᑕࡋࡓ㸬ࢩ࣮ࣝࢻ࢞ࢫ࡟ࡣ❅⣲ࢆ౑⏝ࡋ㸪᥋ྜ㒊ࡢᩳࡵᚋ᪉࠿ࡽ 35L/min ౪⤥ࡋࡓ㸬ヨ㦂∦ࡣ㸪ᯈཌ 3.0mm ࡢ SUS304 ࡜ᯈཌ 2.0mm ࡢ࣏ࣜ࢔࣑ࢻ㸦PA㸧ࢆ౑⏝ࡋࡓ㸬ᯈᮦࡢᑍἲࡣ 70mm×30mm
࡛㸪Fig.2 ࡢࡼ࠺࡟ 50mm×30mm ࡟Ώࡗ࡚㔜ࡡྜࢃࡏ㸪ࢡࣛࣥࣉ἞ල࡟ᅛᐃࡋ࡚ PA ഃ࠿ࡽ࣮ࣞࢨࢆ↷ᑕࡋࡓ㸬↷ᑕࣃࢫࡢ᮲௳ࡣ㸪1 ࣃࢫ↷ᑕ㸦Fig.3㸧
㸪1 ࣃࢫ↷ᑕᚋ࡟ࢡࣛࣥࣉ἞ල࠿ࡽእࡋ෌ᅛᐃᚋ࡟ 1 ࣃࢫ↷ᑕ㸦Fig.4㸧㸪ࢡࣛࣥࣉࡋࡓࡲࡲ 2 ࣃࢫ㐃⥆↷ᑕ㸦Fig.5㸧ࡢ 3 ✀㢮࡜ࡋࡓ㸬ࢡࣛࣥࣉ἞ලࡢ⥾௜ࢺࣝࢡࡣ 0.6N㺃m ࡜ࡋࡓ㸬᥋ྜ㒊ࡢᙉᗘホ౯ࡣ㸪᥋ྜ㒊ࡢ⏬ീ࠿ࡽ᥋ྜ㠃✚ࢆᐃࡋ㸪ࡑࡢᚋᘬᙇࡏࢇ᩿ᙉᗘࢆ

ᐃࡋ㸪ᘬᙇࡏࢇ᩿

ᛂຊࢆồࡵࡓ㸬ᘬᙇ㏿ᗘࡣ 0.1mm/s ࡜ࡋࡓ㸬

Fig.1

Experimental Equipment         Fig.2

Clamping Situation of Test Piece㸱㸬⤖ᯝ࡜⪃ᐹ㸱㸬㸯 LAMP ᥋ྜ㒊ࡢ㠃✚ ᐃ
 Fig.6 ࡟㸪ྛ⥅ᡭࡢ᥋ྜ㠃✚ࡢᐃ⤖ᯝࢆ♧ࡍ㸬Fig.6 ࡢ࡜࠾ࡾ㸪2 ࣃࢫ㐃⥆↷ᑕࡢ᥋ྜ㠃✚ࡣ㸪1 ࣃࢫ↷ᑕ− 94 −

Fig.3Single Path Test Pieces

Fig.4

Two Path Test Pieces

Fig.5(With Re-clamping)Two Path Test Pieces(Without Re-clamping)࡜ẚ࡭࡯ࡰಸቑࡋࡓࡀ㸪ྠࡌ 2 ࣃࢫ↷ᑕ࡛ࡶ 1 ࣃࢫ↷ᑕᚋ࡟ࢡࣛࣥࣉ࠿ࡽእࡋࡓヨ㦂∦ࡢ᥋ྜ㠃✚ࡣᖹᆒ࡛
100mm2 ⛬ᗘῶᑡࡋࡓ㸬ࡇࡢཎᅉ࡟ࡘ࠸࡚㸪ࢡࣛࣥࣉ࠿ࡽ୍ᗘእࡋࡓሙྜ㸪1 ࣃࢫ┠࡛⏕ࡌࡓ⇕ኚᙧ࡟ࡼࡾ㸪෌ᗘࢡࣛࣥࣉࡋ࡚ࡶ᏶඲࡟ᐦ╔ࡋ࡞࠸ࡓࡵ㸪2 ࣃࢫ┠ࡢᐦ╔ᗘࡸ᥋ྜ㠃✚ࡀపୗࡋࡓࡓࡵ࡜⪃࠼ࡽࢀࡿ㸬㸱㸬㸰 ᘬᙇࡏࢇ᩿ᛂຊࡢẚ㍑
 Fig.7 ࡟㸪ྛ⥅ᡭࡢᘬᙇࡏࢇ᩿ᛂຊ࡜ヨ㦂∦ࡈ࡜ࡢ◚᩿≧ἣࢆ♧ࡍ㸬Fig.7 ࡢ࡜࠾ࡾ㸪2 ࣃࢫ↷ᑕࡢᘬᙇࡏࢇ
᩿ᛂຊࡣ㸪࠸ࡎࢀࡶ 1 ࣃࢫ↷ᑕࡼࡾ 3 ๭㏆ࡃపୗࡋࡓ㸬ࡇࡢཎᅉ࡟ࡘ࠸࡚㸪௒ᅇࡢ࣮ࣞࢨ᥋ྜ᮲௳࡛ࡣ᥋ྜ
㒊ࡢ PA ࡀ LAMP ᥋ྜ㠃࠿ࡽ཯ᑐഃࡲ࡛⇕ኚᙧࡋࡓࡓࡵ㸪2 ࣃࢫ┠௨㝆ࡢᐦ╔ᗘࡀపୗࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬10

Tensile-Shear Stress (MPa)

Bonding Area (mm2)

600
500
400
300
200
100
0

Single Path

Two Path
Two Path(With Re-clamping) (Without Re-clamping)Fig.6 Bonding Area of LAMP Joint

8
6
4
Fracture Mode
䕧:Cracking Joint Part
㽢:Separation

20Single Path

Two Path
Two Path(With Re-clamping) (Without Re-clamping)    Fig.7 Tensile-Shear Stress of LAMP Joint㸲㸬⤖ㄽ ᮦᩱࡢᐦ╔ᛶࢆಖࡕ࡞ࡀࡽ」ᩘࣃࢫࡢ࣮ࣞࢨࢆ↷ᑕࡍࡿࡇ࡜࡛㸪LAMP ᥋ྜࡢ᥋ྜ㠃✚ࢆᗈࡆ⥅ᡭᙉᗘࡀྥୖࡍࡿࡇ࡜ࢆ☜ㄆࡋࡓ㸬ࡋ࠿ࡋ㸪⇕ኚᙧ࡟ࡼࡿᐦ╔ᗘࡢపୗ࡛㸪ᘬᙇࡏࢇ᩿ᛂຊࡀ 3 ๭㏆ࡃపୗࡍࡿࡇ࡜
ࡶྜࢃࡏ࡚☜ㄆࡋࡓ㸬௒ᚋࡣ㸪」ᩘࣃࢫࡢ࣮ࣞࢨ↷ᑕ᫬࡟㸪๓ࡢࣃࢫࡢධ⇕࡟ࡼࡿ⇕ኚᙧࢆ᭱ᑠ㝈࡟ࡍࡿ᥋ྜ᮲௳ࡢ᭱㐺໬࡞࡝㸪ᶞ⬡ഃࡢ⇕ኚᙧࡢᢚไ᪉ἲ࡞࡝ࢆ᳨ウࡋ㸪LAMP ᥋ྜࡢᐇ⏝໬ࢆ┠ᣦࡍ㸬㸳㸬ཧ⪃ᩥ⊩1)ᕝேὒ௓㸪୹⩚ᝆ௓㸪∦ᒣ⪷஧㸸ࢫࢸࣥࣞࢫ㗰࡜࣏࢚ࣜࢳࣞࣥࢸࣞࣇࢱ࣮ࣛࢺ࡜ࡢ࣮ࣞࢨ┤᥋᥋ྜ࡜ಙ㢗ᛶホ౯㸪⁐᥋Ꮫ఍ㄽᩥ㞟 ➨ 28 ᕳ ➨ 1 ྕ㸪(2010)㸪p.16-21㸬

2)すᮏᾈྖ㸪୰ᮧᾈ㸪୹⩚ᝆ௓㸪ᕝேὒ௓㸪∦ᒣ⪷஧㸸࣮ࣞࢨࢆ⏝࠸ࡓ⣧ࢳࢱࣥ࡜࢚ࣥࢪࢽ࢔ࣜࣥࢢ
ࣉࣛࢫࢳࢵࢡ PET ࡜ࡢ␗ᮦ┤᥋᥋ྜ㸪㍍㔠ᒓ⁐᥋ Vol.51 No.5㸪(2013)㸪p.166-172㸬

3)᪥㔝ᐇ㸪Ỉᡞᒸ㇏㸪ᮧୖᾈ஧㸪ᾆୖ࿴ே㸪㧗⏣₶㸪㔠㇂㍤ே㸸࢖ࣥࢧ࣮ࢺᮦࢆ⏝࠸ࡓ༙ᑟయ࣮ࣞࢨ
࡟ࡼࡿ 1050 ࢔࣑ࣝࢽ࣒࢘ᯈᮦ/࣏ࣜࣉࣟࣆࣞࣥᶞ⬡␗ᮦ᥋ྜ㸪㍍㔠ᒓ ➨ 59 ᕳ ➨ 5 ྕ㸪(2009)㸪
p.236-240㸬㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨ᥋ྜᶵᵓᏛศ㔝㸧− 95 −

ྛ✀㖡ྜ㔠⁐᥋㒊ࡢᢠ⳦≉ᛶ
Antimicrobial characteristics of various copper alloys weldment኱㜰ᕷ❧኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ బ⸨ ჆ὒ

1㸬㸬⥴ ゝ ᚤ⏕≀ࡀ㛵୚ࡍࡿ㝔ෆឤᰁࡸ㣗୰ẘࡀၥ㢟࡟࡞ࡗ࡚࠸ࡿ㸬ࡲࡓ㸪ᚤ⏕≀ࡀ㛵୚ࡍࡿᕤᴗタഛ➼ࡢᚤ⏕≀⭉㣗ࡢၥ㢟ࡶ῝้࡛࠶ࡿ㸬ࡇࡢ㜵Ṇ⟇࡜ࡋ࡚ᢠ⳦ᛶ㔠ᒓᮦᩱࡀὀ┠ࡉࢀ࡚࠸ࡿ㸬ᢠ⳦ᛶ㔠ᒓᮦᩱ࡛ࡣ㖟㸪㖡㸪ள㖄➼ࡀࡼࡃ▱ࡽࢀ࡚࠸ࡿ㸬㖟ࡣ㠀ᖖ࡟ඃࢀࡓᢠ⳦≉ᛶࢆ᭷ࡍࡿࡀ㸪㧗౯࡛ྜ㔠࡜ࡋ࡚ࡣ౑࠸࡟ࡃ࠸㸬ẚ㍑ⓗᏳ౯࡛ྜ㔠ࡀከࡃ㸪㖟࡜ྠᵝ࡟ඃࢀࡓᢠ⳦≉ᛶࢆ᭷ࡍࡿ㖡ࡀὀ┠ࡉࢀ࡚࠸ࡿ㸬≉࡟㸪Ni ࡸ Sn ➼ࢆῧຍࡋ⪏㣗ᛶࢆྥୖࡉࡏࡓ㖡ྜ㔠ࢆ㸪་⒪᪋タࡸ㣗ရ᪋タཬࡧỈฎ⌮タഛ࡟౑⏝ࡍࡿ࡜㸪ຎ໬ࡏࡎ㧗࠸ᢠ⳦≉ᛶࢆⓎ᥹ࡍࡿࡇ࡜ࡀᮇᚅ࡛ࡁࡿ㸬 ࡋ࠿ࡋ㸪㖡ࡢඃࢀࡓᢠ⳦≉ᛶ࡟ࡘ࠸࡚ࡢ◊✲࡛ࡣ࡯࡜ࢇ࡝ࡀẕᮦ࡟ࡘ࠸࡚࡛࠶ࡾ㸪⁐᥋㒊ࡢᢠ⳦≉ᛶࡣ࡯࡜ࢇ࡝
ㄪ࡭ࡽࢀ࡚࠸࡞࠸㸬⁐᥋ࡣᵝࠎ࡞㔠ᒓ〇ရࡢ〇స࡟⏝࠸ࡽࢀࡿ㔜せ࡞ຍᕤᢏ⾡࡛࠶ࡿ㸬ᢠ⳦ᛶ㔠ᒓᮦᩱࡢᑟධࡀᮇ
ᚅࡉࢀࡿ⑓㝔➼ࡢ་⒪᪋タࡸ㣗ရຍᕤᕤሙ➼ࡢ᪋タཬࡧỈฎ⌮タഛࢆྵࡵࡓከࡃࡢタഛࡢ〇స࡟ࡣ⁐᥋ຍᕤࡀ⏝࠸ࡽࢀ࡚࠸ࡿ㸬⁐᥋㒊ࡣ⾲㠃≧ែࡸ㔠ᒓ⤌⧊ࡀẕᮦ࡜ẚ࡭኱ࡁࡃ␗࡞ࡾࠊẕᮦ࡜ẚ࡭࡚ᢠ⳦ᛶࡀ␗࡞ࡿࡇ࡜ࡀ༴᝹ࡉࢀࡿ㸬 ᮏ◊✲࡛ࡣ㸪ᵝࠎ࡞ᐇ⏝ᛶ㖡ྜ㔠ࡢ୰࡛㸪⪏㣗ᛶ࡟ඃࢀࡓ㖡ྜ㔠࡛࠶ࡿࡾࢇ㟷㖡㸦C5191㸧㸪ⓑ㖡㸦C7150㸧ཬࡧὒⓑ㸦C7521㸧ࡢ㖡ྜ㔠⁐᥋㒊ࡢᢠ⳦ᛶࢆㄪ࡭㸪⁐᥋๓ᚋࡢᢠ⳦≉ᛶࡢኚ໬ࢆㄪ࡭ࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿ㸬

2㸬
㸬ᐇ㦂᪉ἲ
㸰.㸯
㸯 ᢠ⳦ヨ㦂
㸰.㸯
㸯.㸯
㸯 ౑⏝ᮦᩱ ౪ヨᮦࡣ,ࡾࢇ㟷㖡㸦C5191㸧㸪ⓑ㖡㸦C7150㸧ཬࡧὒⓑ㸦C7521㸧࡛ཌࡉ 3.0mm ࡢᯈᮦ࡛࠶ࡿ㸬ྛ✀㖡ྜ㔠ࡢ⤌ᡂࢆ Tablea1 ࡟♧ࡍ㸬ヨ㦂∦ࡢᑍἲࡣ㸪ẕᮦヨ㦂∦㸦Base Metal ௨ୗ㸪BM㸧ࡣ 25mm×25mm×3.0mm㸪⁐᥋㒊ヨ㦂∦㸦As Weld ௨ୗ㸪AW㸧ཬࡧ AW ⾲㠃ࡢࢫࣛࢢࢆ࣡࢖ࣖࣈࣛࢩ࡟ࡼࡾ㝖ཤࡋࡓヨ㦂∦(Brushed)ࡣ
35mm×35mm×3.0mm ࡛࠶ࡿ㸬ᐇ㦂๓࡟ࡑࢀࡒࢀ㸪࢔ࢭࢺࣥ㸪࢚ࢱࣀ࣮ࣝࡢ㡰࡟ 15 ศ㛫㉸㡢ἼὙίࢆ⾜࠸㸪᭱ᚋ࡟⣸እ⥺࡟༑ศ↷ᑕࡋ࡚⁛⳦ฎ⌮ࢆ⾜ࡗࡓࡶࡢࢆヨ㦂∦࡜ࡋࡓ㸬ࡓࡔࡋ㸪ẕᮦࡘ࠸࡚ࡣ⁛⳦ฎ⌮๓࡟#1000 ࡲ࡛‵ᘧ◊☻ࢆ⾜ࡗࡓ㸬    Tablea1AChemical components of test samples(mass%)㸬

㸰.㸯
㸯.㸰
㸰 GTA ⁐᥋ヨ㦂∦࡟࢔ࣝࢦࣥࢆࢩ࣮ࣝࢻ࢞ࢫ࡜ࡋ࡚ࣅ࣮ࢻ࣭࣭࢜ࣥࣉ࣮ࣞࢺἲ࡟࡚ GTA ⁐᥋ࢆ⾜ࡗࡓ㸬ࣅ࣮ࢻᖜࢆᆒ୍
࡟ಖࡘࡓࡵ࡟ጞࡵ 5㹼7 ⛊㛫㟼Ṇࡋࡓᚋ࡟㉮⾜ࡉࡏ࡚㸪5 ࣃࢫ⁐᥋ࡋヨᩱ඲㠃ࢆ⁐᥋㒊࡛そࡗࡓ㸬⁐᥋᮲௳ࢆ㸪
Tablea2 ࡟♧ࡍ㸬
Tablea2 GTA Welding conditions.

− 96 −

㸰.㸯
㸯.㸱
㸱 ᢠ⳦ヨ㦂
 BM㸪AW ཬࡧ Brushed ⾲㠃࡟ᑐࡋ࡚㸪ࣇ࢕࣒ࣝᐦ╔ἲ㸦JIS Z 2801㸧ࢆཧ⪃࡟ࡋ࡚ᢠ⳦ᛶヨ㦂ࢆ⾜ࡗࡓ㸬ヨ㦂
⳦ࡣ Escherichia coli NBRC 3972㸦௨ୗ㸪኱⭠⳦(E㸬coli )㸧࡜ Staphylococcus aureus subsp㸬aureus NBRC 12732㸦௨ୗ㸪㯤Ⰽࣈࢻ࢘⌫⳦(S㸬aureus )㸧ࢆ⏝࠸ࡓ㸬ࡇࡢሙྜ㸪JIS ࡟ᐃࡵࡿ 24 ᫬㛫ᚋࡢヨ㦂ࡢ௚࡟㸪0㸬5㸪1㸬5㸪3㸪6㸪
12 ᫬㛫ᚋࡢヨ㦂ࡶ⾜࠸⁐᥋ᚋࡢᢠ⳦ຊኚ໬ࡢ☜ㄆࡶྠ᫬࡟⾜ࡗࡓ㸬㸰.㸯
㸯.㸲
㸲 ᢠ⳦ᛶホ౯ ᢠ⳦ᛶホ౯ᇶ‽ࡣ JIS Z 2801 ࡟ᇶ࡙ࡁ㸪௨ୗࡢࡼ࠺࡟ᐃࡵࡓ㸬24 ᫬㛫ᚋࡢヨ㦂∦ୖࡢ⏕⳦ᩘࡀ 24 ᫬㛫ᚋࡢControl ࡢ 1%௨ୗ࡛࠶ࡿሙྜ㸪ᢠ⳦ᛶࢆ᭷ࡍࡿ࡜ᐃ⩏ࡋࡓ㸬Control ࡣ㸪ᢠ⳦ຍᕤࡀ᪋ࡉࢀ࡚࠸࡞࠸ヨᩱୖࡢ⏕⳦ᩘ࡛࠶ࡾ㸪௒ᅇࡣ⁛⳦ࢩ࣮ࣕࣞୖࡢ⏕⳦ᩘࢆ Control ࡜ࡋࡓ㸬

㸰 EDX ཬࡧ XRD ࢆ⏝࠸ࡓヨ㦂∦⾲㠃ࡢศᯒ
㸰.㸰
㸰.㸰
㸰.㸯
㸯A ౪ヨᮦ EDX ཬࡧ XRD ศᯒ࡛⏝࠸ࡿ౪ヨᮦࡣᢠ⳦ヨ㦂࡜ྠࡌ㸪ཌࡉ 3.0mm ࡢྛ✀㖡ྜ㔠ࡢᯈᮦ࡛࠶ࡿ㸬2㸬1㸬1 ཬࡧ
2.1.2 ࡜ྠᵝࡢᡭ㡰࡛㸪ࡲࡎ 25mm×25mm ࡢ BM㸪35mm×35mm ࡢ AW ཬࡧ Brushed ࢆ〇సࡋࡓ㸬ࡑࢀࡽࢆ 15mm
±3mm×15mm±3mm ࡟ษ᩿ࡋࡓ㸬
㸰.㸰
㸰.㸰
㸰A

ᐃ⿦⨨

 EDX ศᯒࡣ᪥ᮏ㟁Ꮚ(ᰴ)〇ࡢ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾 JSM-6500 ཬࡧ㸪᪥ᮏ㟁Ꮚ(ᰴ)〇ࡢ࢚ࢿࣝࢠ࣮ศᩓᆺ X ⥺ศᯒ⿦⨨ JED-2200 ࢆ ᐃ࡟⏝࠸ࡓ㸬XRD ศᯒࡣ(ᰴ)ࣜ࢞ࢡ〇ࡢ X ⥺ᅇᢡ⿦⨨ RINT-2000 ࢆ ᐃ࡟⏝࠸ࡓ㸬

㸱. ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ㸱.㸯
㸯 ᢠ⳦ᛶホ౯AW ⾲㠃ࡣ㸪ࢫࣛࢢ࡜᥎ᐹࡉࢀࡿ⏕ᡂ≀࡛そࢃࢀ࡚࠸ࡓ㸬ྛ✀㖡ྜ㔠ࡢ BM ཬࡧ AW ࡢᢠ⳦ᛶホ౯⤖ᯝࢆヨ㦂᫬㛫 24 ᫬㛫ࡲ࡛࡜ࡋ࡚ Fig.a1 ࡟♧ࡍ㸬ࡾࢇ㟷㖡㸦C5191㸧㸪ⓑ㖡㸦C7150㸧ཬࡧὒⓑ㸦C7521㸧ࡢ࠸ࡎࢀࡢヨᩱ࡟࠾࠸࡚ࡶẕᮦ㸦BM㸧ཬࡧ⁐᥋㒊ヨ㦂∦㸦AW㸧ඹ࡟ Control ࡜ẚ࡭࡚ 24 ᫬㛫ᚋࡢ⏕⳦ᩘࡀ 99%௨ୖῶᑡࡋ࡚࠾
ࡾ㸪JIS ࡛ᐃ⩏ࡉࢀࡿᢠ⳦ᛶࢆ᭷ࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡋ࠿ࡋ㸪AW ࡛ࡣ⏕⳦ᩘࡢῶᑡࡍࡿ㏿ᗘࡀ㐜ࡃࠊᢠ⳦ຊࡣ
BM ࡟ẚ࡭࡚పୗࡍࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡇࢀࡣ AW ⾲㠃ࡢ⁐᥋࡟ࡼࡿࢫࣛࢢࡀཎᅉ࡛ࡣ࡞࠸࠿࡜⪃࠼ࡽࢀࡿ㸬

Fig.a1AChanges of viable count for 24 hours(C5191).

 

Fig.a2AChanges of viable count for 6 hours (C5191).

 ࡾࢇ㟷㖡㸦C5191㸧ヨ㦂∦ࡢ BM㸪AW ཬࡧ࣡࢖ࣖࣈࣛࢩ࡟ࡼࡾࢫࣛࢢࢆ㝖ཤࡋࡓヨ㦂∦㸦Brushed㸧ࡢᢠ⳦ヨ㦂ࡢ⤖ᯝࢆ Fig.a2 ࡟♧ࡍ㸬ࡇࡇ࡛ࡣ▷᫬㛫ഃࡢ⏕⳦ᩘῶᑡᣲືࢆヲࡋࡃほࡿࡓࡵ࡟ヨ㦂᫬㛫ࢆ 6 ᫬㛫ࡲ࡛࡜ࡋ࡚
࠸ࡿࠋBrushed ヨ㦂∦ࡣࠊBM ࡟ẚ࡭࡚⏕⳦ᩘῶᑡ㏿ᗘࡀ㐜࠸ AW ࡼࡾ⏕⳦ᩘῶᑡ㏿ᗘࡀ㏿ࡃ࡞ࡾ Brushed ࡢᢠ⳦ຊࡀᅇ᚟ࡋࡓࡇ࡜ࡀศ࠿ࡿ㸬ࡇࢀࡣ⁐᥋ᚋࡢᢠ⳦ຊపୗࡢཎᅉࡀ⾲㠃࡟ᙧᡂࡉࢀࡓ⁐᥋ࢫࣛࢢ࡛࠶ࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿ㸬ⓑ㖡㸦C7150㸧ཬࡧὒⓑ㸦C7521㸧࡛ࡶྠᵝࡢヨ㦂ࢆ⾜ࡗࡓ⤖ᯝ㸪ࡾࢇ㟷㖡㸦C5191㸧ヨ㦂∦࡜ྠᵝ࡟BM ࡟ẚ࡭࡚ AW ࡛ࡣᢠ⳦ຊࡀపୗࡍࡿࡀ㸪Brushed ヨ㦂∦ࡢᢠ⳦ຊࡣ࠶ࡿ⛬ᗘᅇ᚟ࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬− 97 −

㸱.㸰
㸰 ⾲㠃ศᯒ⤖ᯝ
㸱.㸰
㸰.㸯
㸯AEDX ศᯒ⤖ᯝ ᢠ⳦ຊపୗࡢཎᅉࢆ⪃࠼ࡿࡓࡵ࡟㸪ྛ㖡ྜ㔠ࡢ BM㸪AW ཬࡧ Brushed ⾲㠃ࡢ EDX ศᯒࢆ⾜ࡗࡓ㸬ࡑࡢ⤖ᯝ㺂ࡾࢇ㟷㖡㸦C5191㸧࡛ࡣ㸪࠸ࡎࢀࡢヨ㦂∦࡟࠾࠸࡚ࡶ Cu ࠾ࡼࡧ Sn ࡢ௚࡟ O ࡢࣆ࣮ࢡࡀ᳨ฟࡉࢀࡓ㸬O ࡢࣆ࣮ࢡ
ࡣ AW ࡀ᭱ࡶ㧗ࡃ㸪Brushed ḟ࠸࡛ BM ࡢ㡰࡛࠶ࡗࡓ㸬ࡇࢀࡣᮏᐇ㦂࡛ࡣ࢔ࣝࢦࣥࢆࢩ࣮ࣝࢻ࢞ࢫ࡜ࡋ࡚⁐᥋ࢆ⾜ࡗࡓࡀ㸪⾲㠃ࡢ⁐᥋ࢫࣛࢢࡣ㓟໬≀࡛࠶ࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬ⓑ㖡㸦C7150㸧࡛ࡣ Cu ࠾ࡼࡧ Ni ࡢ௚࡟ O ࡢࣆ࣮ࢡࡀ᳨ฟࡉࢀࡓ㸬ὒⓑ㸦C7521㸧࡛ࡣ Cu, Zn ࠾ࡼࡧ Ni ࡢ௚࡟ O ࡢࣆ࣮ࢡࡀ᳨ฟࡉࢀࡓ㸬ࡇࢀࡼࡾ⁐᥋ᚋࡢ
ヨ㦂∦⾲㠃ࡣ㓟໬≀ࡢࢫࣛࢢ࡟そࢃࢀ࡚࠸ࡓࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬
㸰.㸰
㸰AXRD ศᯒ⤖ᯝ㸱.㸰 ⁐᥋ヨ㦂∦⾲㠃ࡢ㓟໬≀ࢫࣛࢢࢆㄪ࡭ࡿࡓࡵ࡟ྛ㖡ྜ㔠ࡢ BM㸪
AW ཬࡧ Brushed ⾲㠃ࡢ XRD ศᯒࢆ⾜ࡗࡓ㸬ࡑࡢ⤖ᯝࢆ Fig.a3ࠥFig.a5 ࡟♧ࡍ㸬     Fig.a3AXRD profiles of C5191.

    Fig.a4AXRD profiles of C7150.

     Fig.a12AXRD profiles of C7521㸬

− 98 − ࡾࢇ㟷㖡㸦C5191㸧AW ࡛ࡣ㸪 Cu ࡢࣆ࣮ࢡࡢ௚࡟ Cu2O ࡢࣆ࣮ࢡࡀ᳨ฟࡉࢀ࡚࠸ࡿ㸬ⓑ㖡㸦C7150㸧࡛ࡣ Cuࡢࣆ࣮ࢡࡢ௚࡟ Cu2O ࠾ࡼࡧ CuO ࡢࣆ࣮ࢡࡀ᳨ฟࡉࢀ࡚࠸ࡿ㸬ࡲࡓ㸪ὒⓑ㸦C7521㸧࡛ࡣ Cu ࡢࣆ࣮ࢡࡢ௚࡟
Cu2O ࠾ࡼࡧ ZnO ࡢࣆ࣮ࢡࡀ᳨ฟࡉࢀ࡚࠸ࡿ㸬ࡇࡢࡼ࠺࡟ྛ✀㖡ྜ㔠ヨ㦂∦⁐᥋㒊⾲㠃ࡣ㸪Cu2O㸪CuO ࠾ࡼࡧ
ZnO 㓟໬≀࡛そࢃࢀ࡚࠾ࡾ㸪Brushed ヨ㦂∦࡛ࡣࡇࢀࡽࡢ࡯࡜ࢇ࡝ࡢ㓟໬≀ࡀ㝖ཤࡉࢀ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬㐣ཤࡢ◊✲ཬࡧ௒ᅇࡢ⤖ᯝࡼࡾ㸪ᮦᩱࡢᢠ⳦ຊࡣ CuӍCu2O㸼CuO㸪BMC7521㸼ZnO ࡢ㡰࡛࠶ࡾ 1,2)㸪㓟໬≀ࡢᢠ⳦ຊࡣᙅ࠸࡜⪃࠼ࡽࢀࡿ㸬ᮏᐇ㦂࡛⏝࠸ࡓྛ✀㖡ྜ㔠࡛ࡣ⁐᥋ࡋ࡚ࡶᢠ⳦ᛶࡀኻࢃࢀࡿࡇ࡜ࡣ࡞࠸ࡀ㸪⾲㠃ࡀ㓟໬≀ࢫࣛࢢᒙ࡛そࢃࢀࡿࡓࡵ࡟ᢠ⳦ຊࡣపୗࡍࡿ࡜⪃࠼ࡽࢀࡿ㸬㸲㸬⤖ゝ ᢠ⳦ᛶ㔠ᒓᮦᩱ࡛࠶ࡿ㖡ྜ㔠࡟࢔ࣝࢦࣥࢆࢩ࣮ࣝࢻ࢞ࢫ࡜ࡋ࡚ࣅ࣮ࢻ࣭࣭࢜ࣥࣉ࣮ࣞࢺἲ࡟࡚ GTA ⁐᥋ࢆ⾜࠸㸪ヨᩱ⾲㠃ࢆ⁐᥋㒊࡛そ࠸㸪⁐᥋㒊ࡢᢠ⳦≉ᛶࢆㄪ࡭㸪௨ୗࡢ⤖ㄽࢆᚓࡓ㸬㸯㸧

As Weld ࡣ኱⭠⳦ཬࡧ㯤Ⰽࣈࢻ࢘⌫⳦࡟ᑐࡋ࡚ᢠ⳦ᛶࢆ♧ࡋࡓ㸬⁐᥋ᚋࡶᢠ⳦ᛶࡣ⥔ᣢࡉࢀࡓ㸬㸰㸧ヨ㦂᫬㛫 0㸬5㸪1㸬5㸪3㸪6㸪12 ᫬㛫࡟࠾࠸࡚ࡢヨ㦂࡟࠾࠸࡚㸪⁐᥋㒊ࡢᢠ⳦ຊࡣẕᮦ࡟ẚ࡭࡚పୗࡍࡿࡇ࡜ࡀぢཷࡅࡽࢀࡓ㸬ࡇࢀࡣ⾲㠃ࡢࢫࣛࢢࡀཎᅉ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬㸱㸧

AW ⾲㠃ࡢࢫࣛࢢࢆ㝖ཤࡍࡿ࡜㸪ᢠ⳦ຊࡣᅇ᚟ࡋࡓ㸬㸲㸧

EDX ཬࡧ XRD ศᯒࡢ⤖ᯝ㸪AW ⾲㠃࡟㓟໬≀ࡀᙧᡂࡉࢀࡓࡇ࡜ࡀศ࠿ࡗࡓ㸬㸳㸧⁐᥋ᚋࡢᢠ⳦ຊపୗࡢཎᅉࡣ㸪⾲㠃ࡀ㓟໬≀࡛ᵓᡂࡉࢀࡓࢫࣛࢢᒙ࡟そࢃࢀࡓࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ཧ⪃ᩥ⊩1) M. Hans,A. Erbe,S. Mathews,Y. Chen,M. Solioz and Frank Mücklich,“Role of Copper Oxides in Contact Killingof Bacteria”,Langmuir,(2013),29,16160-161662) ᕝᡭ ಟ୍㸪“㓟໬ள㖄⓶⭷ࡢᢠ⳦ᛶホ౯”㸪኱㜰ᕷ❧኱Ꮫ༞ᴗ◊✲㸪(2014)㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨ᥋ྜᶵᵓᏛศ㔝㸧− 99 −

ᶞ⬡㔠ᒓ࣮ࣞࢨ┤᥋᥋ྜ㜿༡ᕤᴗ㧗➼ᑓ㛛Ꮫᰯ ᶵᲔᕤᏛ⛉すᮏ ᾈྖ
᥋ྜᶵᵓ◊✲㒊㛛 ࣮ࣞࢨ᥋ྜᶵᵓᏛศ㔝∦ᒣ ⪷஧㸪ᕝே ὒ௓㸯㸬┠ⓗ㏆ᖺ㸪㧗ᙉᗘ࣭㧗ᙎᛶࡢⅣ⣲⧄⥔ࢆྵ᭷ࡍࡿࣉࣛࢫࢳࢵࢡ࡛࠶ࡿⅣ⣲⧄⥔ᙉ໬⇕ྍረᛶᶞ⬡」ྜᮦᩱ
㸦CFRTP㸸Carbon Fiber Reinforced Thermoplastics㸧ࡣ㸪㔠ᒓ࡟ẚ࡭࡚㍍㔞࡛㧗ᙉᗘࡸ㧗ᙎᛶ࡛࠶ࡿࡇ࡜
࠿ࡽ㸪⯟✵ᶵ㸪⮬ື㌴㸪ࢫ࣏࣮ࢶ࡞࡝ᗈ⠊ᅖࡢศ㔝࡛฼⏝ࡀቑຍࡋ࡚࠸ࡿ㸬ࡇࢀࡲ࡛㸪CFRTP ࡜㔠ᒓࡢ᥋ྜࡣ㸪࣎ࣝࢺࡸࢼࢵࢺࢆ⏝࠸ࡓᶵᲔⓗ⥾⤖ἲࡸ㸪᥋╔๣ࢆ⏝࠸ࡓ᥋╔ࡀᣲࡆࡽࢀࡿ㸬ࡋ࠿ࡋ㸪ᶵᲔⓗ⥾⤖ἲ࡛ࡣ㸪᥋ྜ⏝㒊ရࡀᚲせ࡛࠶ࡾ㸪タィࡢ⮬⏤ᗘࡀไ㝈ࡉࢀࡿ㸬ࡲࡓ㸪㒊ရⅬᩘࡀቑຍࡍࡿࡇ࡜
࡟ࡼࡾ㍍㔞໬ࡀ㞴ࡋ࠸࡞࡝ࡢḞⅬࡀ࠶ࡿ㸬୍᪉᥋╔࡛ࡣ㸪⎔ቃ㠃࠿ࡽ᥋╔๣ࡢ᤼ฟ㔞ไ㝈ࡸ᥋╔᫬㛫ࡀ㛗࠸㸪⥅ᡭᙉᗘࡀప࠸࡜࠸ࡗࡓၥ㢟ࡀ࠶ࡿ㸬ࡋࡓࡀࡗ࡚㸪᥋ྜ㒊ရࡸ᥋╔๣ࢆ⏝࠸࡞࠸㧗ᙉᗘ࡞㔠ᒓ࡜ࣉࣛࢫࢳࢵࢡࡢ┤᥋᥋ྜᢏ⾡ࡢ☜❧ࡀồࡵࡽࢀ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪㔠ᒓ࡜ᶞ⬡ࢆ┤᥋᥋ྜྍ⬟࡞ LAMP ᥋ྜἲ 1-3)࡟ࡼࡾ㸪SUS304 ᯈ࡜ CFRTP ࡢ࣮ࣞࢨ┤᥋᥋ྜࢆ⾜ࡗࡓ㸬LAMP ᥋ྜ࡛ࡣ㸪㔠ᒓ࡜ᶞ⬡ࢆ㔜ࡡྜࢃࡏ㸪㔠ᒓࡲࡓࡣࣉࣛࢫࢳࢵࢡഃ࠿ࡽ࣮ࣞࢨࢆ
↷ᑕࡋ㸪㔠ᒓᮦᩱ࡜᥋ࡍࡿࣉࣛࢫࢳࢵࢡࢆᒁᡤⓗ࡟⁐⼥ࡉࡏ㸪ࡉࡽ࡟ศゎᗘ௨ୖ࡟▐᫬࡟ຍ⇕ࡍࡿࡇ࡜࡛㸪᥋ྜ㒊㏆ഐࡢ⼥ᾮ୰࡟ẼἻࢆⓎ⏕ࡉࡏࡿ㸬ࡑࡢ᫬ࡢẼἻࡢ⭾ᙇ࡟ࡼࡾ㸪㧗࡛άᛶ໬ࡋࡓ⼥ᾮࡀ᥋ྜ⏺㠃ࡢ㔠ᒓ⾲㠃ࢆᢲࡋࡘࡅᐦ╔ࡍࡿࡇ࡜࡛᥋ྜ㒊ࡀᙧᡂࡉࢀ࡚࠸ࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿ 1)㸬ࡇࢀࡽ᥋ྜ⏺㠃࡟ẼἻࡀᙧᡂࡍࡿẼἻࡣ㸪⥅ᡭᙉᗘ࡟ᙳ㡪ࢆཬࡰࡍࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬ᮏሗ࿌࡛ࡣ㸪SUS304 ࡜
CFRTP ࡢ LAMP ᥋ྜᐇ㦂ࢆ⾜࠸㸪ྛ✀᥋ྜ᮲௳ࡀཬࡰࡍ LAMP ᥋ྜᛶ࠾ࡼࡧ⥅ᡭᙉᗘ࡟ࡘ࠸᳨࡚ウࡋࡓ㸬㸰㸬ᐇ㦂᪉ἲ
౪ヨᮦᩱ࡜ࡋ࡚㸪SUS304ࢫࢸࣥࣞࢫ㗰࡜CFRTPࢆ⏝࠸ࡓ㸬SUS304ࡢヨᩱࢧ࢖ࢬࡣ㸪ཌࡉ1 mm࡛᥋ྜ㒊ࡢᖜ10 mm࡜ࡋ㸪CFRTPࡣཌࡉ4 mm࡛᥋ྜ㒊ᖜ10 mmࡢࡶࡢࢆ⏝࠸ࡓ㸬CFRTPࡢⅣ⣲⧄⥔ࡣ▷⧄⥔ࡢ
PITCH⣔࡛࠶ࡾ㸪ᶞ⬡ࡣPA66㸦ࢼ࢖ࣟࣥ66㸧࡛࠶ࡿ㸬
ᅗ1࡟♧ࡍ㸬ヨᩱᅛᐃྎ࡟CFRTPࢆ⨨ࡁ㸪ࡑࡢୖ࡟SUS304ࢆ㔜ࡡ㸪SUS304࠾ࡼ
ᐇ㦂⿦⨨ࡢᴫ␎ᅗࢆᅗ
ࡧCFRTP࡜ࡢ㧗ࡉㄪᩚࢆ⾜࠺ࡓࡵࢫ࣮࣌ࢧ࣮ࢆᣳࡳ㸪ᢚ࠼ᯈࢆ⏝࠸࡚0.6 N࣭m ࡢࢺࣝࢡ࡛⥾ࡵࡘࡅ࡚㸪᥋ྜᮦࢆᅛᐃࡋࡓ㸬࣮ࣞࢨ࡟ࡣࣇ࢓࢖ࣂ࣮ࣞࢨࢆ⏝࠸㸪SUS304⾲㠃࡟↔Ⅼࢆྜࢃࡏ㸪↔Ⅼࡣࡎࡋ㊥㞳+28 mm㸪๓㐍ゅ15°࡛ᐇ㦂ࢆ⾜ࡗࡓ㸬ࢩ࣮ࣝࢻ࢞ࢫࡣ㸪⁐᥋᪉ྥᚋ᪉࠿ࡽ⣙40ᗘࡢゅᗘ࡛タ⨨ࡉࢀࡓ┤⥺ᆺࡢࢧ࢖ࢻࣀࢬࣝ࠿ࡽ࢔ࣝࢦࣥ㸦Ar㸧࢞ࢫࢆὶ㔞30 L/min ࡛౪⤥ࡋࡓ㸬ᐇ㦂᮲௳ࡣ㸪࣮ࣞࢨฟຊ100W㸪
἞ල㥑ື⿦⨨ࡢ㏿ᗘ0.7~2.5 mm/s࡜ࡋࡓ㸬┤᥋᥋ྜᐇ㦂ᚋ㸪ᘬᙇࡏࢇ᩿ヨ㦂࡟ࡼࡾ⥅ᡭᙉᗘࡢホ౯ࢆ⾜ࡗࡓ㸬ࡲࡓ㸪࣮ࣞࢨ㢧ᚤ㙾࡟ࡼࡗ࡚SUS304ヨ㦂∦⿬㠃࡜CFRTPヨ㦂∦⾲㠃㸪CFRTPヨ㦂∦᩿㠃ࡢほᐹࢆ⾜ࡗࡓ㸬㸱㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ
ᅗ2࡟௦ྛ✀᥋ྜ᮲௳࡟࠾࠸࡚㸪LAMP᥋ྜᐇ㦂ࢆ⾜ࡗࡓ⤖ᯝ㸪ࡍ࡭࡚ࡢ᮲௳࡛᥋ྜྍ⬟࡛࠶ࡗࡓ㸬ᅗ⾲ⓗ࡞SUS304࡜CFRTPࡢLAMP᥋ྜ⥅ᡭࡢእほ෗┿ࢆ♧ࡍ㸬㏦ࡾ㏿ᗘࡀ㐜ࡃ࡞ࡿ࡟ࡋࡓࡀ࠸㸪SUS304
⾲㠃࡟⁐⼥⑞ࡀㄆࡵࡽࢀࡿࡼ࠺࡟࡞ࡾ㸪ࡑࡢᖜࡣᗈࡃ࡞ࡗࡓ㸬ᅗ3ᚓࡽࢀࡓ⥅ᡭࡢᶵᲔⓗᙉᗘࢆㄪ࡭ࡿࡓࡵ࡟㸪ᘬᙇࡏࢇ᩿ヨ㦂ࢆ⾜ࡗࡓ㸬ᘬᙇࡏࢇ᩿ヨ㦂ࡢ⤖ᯝࢆᅗ− 100 −

࡟♧ࡍ㸬㏦ࡾ㏿ᗘࡀ㏿࠸ሙྜ㸪ධ⇕㔞ࡀᑡ࡞࠸ࡓࡵ༑ศ࡟᥋ྜ⏺㠃ࢆຍ⇕ࡍࡿࡇ࡜ࡀ࡛ࡁࡎ㸪⥅ᡭᙉᗘࡣపୗࡋࡓ㸬㏦ࡾ㏿ᗘ2.5 mm/s௨ୗ࡛㸪ᘬᙇࡏࢇ᩿ຍ㔜500 Nࢆ㉸࠼ࡿ⥅ᡭࡀᚓࡽࢀ㸪㏦ࡾ㏿ᗘ0.7 mm/s࡛ࡣ㸪᭱኱ᘬᙇࡏࢇ᩿ຍ㔜⣙830 Nࡢ᥋ྜᙉᗘࡀᚓࡽࢀࡓ㸬ḟ࡟㸪ࡏࢇ᩿◚᩿ᚋࡢ᥋ྜ㒊᩿㠃ࢆ࣮ࣞࢨ㢧ᚤ㙾࡛ほᐹࢆ⾜ࡗࡓ㸬㏦ࡾ㏿ᗘ0.7 mm/s࠾ࡼࡧ2.9 mm/s
ᅗ4࡟♧ࡍ㸬ほᐹ⤖ᯝ࠿ࡽ㸪㏦ࡾ㏿ᗘࡀ㏿࠸ሙྜ㸪᥋ྜ⏺㠃㏆ഐࡢCFRTPෆ࡟࡛ࡢCFRTPࡢ᩿㠃෗┿ࢆᅗࡣ㸪ẼἻࡣ࡯࡜ࢇ࡝ᙧᡂࡉࢀ࡚࠸࡞࠸ࡇ࡜ࡀࢃ࠿ࡗࡓ㸬㧗࠸⥅ᡭᙉᗘࢆ♧ࡋࡓ0.7 mm/sࡢሙྜ࡟ࡣ㸪⁐⼥ࡋࡓCFRTP୰࡟ከࡃࡢẼἻࡀᗈ࠸⠊ᅖ࡛Ⓨ⏕ࡋ࡚࠸ࡿࡇ࡜ࡀほᐹࡉࢀ㸪LAMP᥋ྜࡉࢀ࡚࠸ࡿࡇ࡜ࡀ
ࢃ࠿ࡗࡓ㸬㏦ࡾ㏿ᗘࡢపୗ࡟క࠸㸪ධ⇕㔞ࡀቑ኱ࡋ㸪ẼἻࡢᩘࡸ኱ࡁࡉࡀቑຍࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬㸲㸬⤖ゝ
CFRTP ࡜ SUS304 ࡢ LAMP ᥋ྜ࡟࠾࠸࡚㸪ྛ✀᥋ྜ᮲௳ࡀཬࡰࡍ LAMP ᥋ྜᛶ࠾ࡼࡧ᥋ྜ⏺㠃㏆ഐ࡟ᙧᡂࡍࡿẼἻࡢᙧᡂ≧ἣ࡟ࡘ࠸᳨࡚ウࡋࡓ㸬ẼἻࡢᙧᡂ㔞࠾ࡼࡧ኱ࡁࡉࡣ㸪࣮ࣞࢨฟຊࡢቑຍ࡟ࡼࡾ
ቑຍࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ᘬᙇࡏࢇ᩿ヨ㦂ࡢ⤖ᯝ㸪⣙ 830 N ࡢ᥋ྜᙉᗘࢆ᭷ࡍࡿ⥅ᡭࡀᚓࡽࢀࡓࡀ㸪᥋ྜᙉᗘࢆࡉࡽ࡟㧗ࡃࡍࡿࡓࡵ࡟ࡣ㸪᥋ྜ㠃✚ࢆᗈࡃࡍࡿᚲせࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿ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




10 mm

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
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ᅗ 2 SUS304 ࡜ CFRTP ࡢ LAMP ᥋ྜ⥅ᡭᘬᙇࡏࢇ᩿Ⲵ㔜ᅗ 1 ᐇ㦂⿦⨨ࡢᴫ␎ᅗ(a) ㏦ࡾ㏿ᗘ 2.9 mm/s






㻝㻌㼙㼙

㏦ࡾ㏿ᗘ (mm/s)(b) ㏦ࡾ㏿ᗘ 0.7 mm/s
ᅗ 4 ࡏࢇ᩿◚᩿ᚋࡢ CFRTP ᩿㠃ほᐹ

ᅗ 3 ᘬᙇࡏࢇ᩿ヨ㦂⤖ᯝ㸦ඹྠ◊✲ศ㔝㸸᥋ྜᶵᵓ◊✲㒊㛛 ࣮ࣞࢨ᥋ྜᶵᵓᏛศ㔝㸧− 101 −

㢟┠ࠕ࣮ࣞࢨຍᕤ࡟࠾ࡅࡿࣅ࣮࣒࡜ᮦᩱࡢ┦஫స⏝୪ࡧ࡟࣮ࣞࢨຍᕤ⌧㇟ࡢゎ᫂ࠖ̿ ࣮ࣞࢨ࣭࢔࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋≉ᛶ ୍̿⯡㈈ᅋἲே㻌 ㏆␥㧗䜶䝛䝹䜼䞊ຍᕤᢏ⾡◊✲ᡤ㻌㔝⏣㻌 ಟ㻌 㻌 㻌䠍䠊┠ⓗ㻌䢈䡣䡮䢆䢚䡬䢖䡬䡷䢚➼䛾㧗㞟᮰䢖䡬䡷䢚䛸䡭䡬䡴䛾䢆䡮䢈䢚䢔䡫䢀䢚⁐᥋ᢏ⾡䛿䚸ከ䛟䛾〇㐀ศ㔝䛻䛚䛔䛶㐺⏝䛥䜜䛶䛔䜛䚹㻌㼇㻝㼉㻌 䢆䡮䢈䢚䢔䡫䢀䢚⁐᥋䛻䛚䛡䜛⁐᥋ရ㉁ྥୖ䛻䛿䚸䡭䡬䡴ᨺ㟁䛻䛚䛔䛶Ⓨ⏕䛩䜛䡹䢆䢛䡫䡼䜢᭱ᑠ㝈䛻ᢚ䛘䛯㻌᮲௳䜢᥈⣴䛩䜛䛣䛸䛜ᚲせ䛷䛒䜛䛜䚸⁐᥋䡷䢙䢈䢛䢕䛾ศᯒ䛰䛡䛷䛿ゎỴ⟇䛜ᚓ䜙䜜䛺䛔䛾䛜⌧≧䛷䛒䜛䚹㻌ᮏ᳨ウ䛷䛿䚸㧗㏿ᗘ䡲䢎䢓䜢⏝䛔䛶䚸୧⪅䛾㓄⨨䛾㐪䛔䛻䜘䜛䡹䢆䢛䡫䡼䛾Ⓨ⏕≧ἣ䛻䛴䛔䛶ྍど໬䛧䚸䡹䢆䢛䡫䡼㻌䛾Ⓨ⏕䛜ᢚไ䛷䛝䜛ᵓᡂ䛻䛴䛔䛶ㄪᰝ䛩䜛䛣䛸䜢┠ⓗ䛸䛩䜛䚹㻌䠎䠊◊✲ᴫせ㻌㧗㏿ᗘ䡲䢎䢓㻌 㻌 㧗㏿ᗘ䡲䢎䢓䜢⏝䛔䛯⁐᥋⌧㇟䛾ྍど໬ヨ㦂⿦⨨䛾እほ෗┿䜢ᅗ 㻝㻌

6㍈ከ㛵⠇䢗䢊䢚䡫䢀㍈ከ㛵⠇䢗䢊䢚䡫䢀䡭䡬䡴䢀䡬䡽

䛻♧䛩䚹䢖䡬䡷䢚䛿䚸㜰኱᥋ྜ◊ᡤ᭷䛾 㻵㻼㻳 ♫〇 㻝㻜㼗㼃 ⣭䢈䡣䡮䢆䢚䢖䡬䡷䢚㻌䜢⏝䛔䚸䡭䡬䡴㟁※䛿䡼䢚䡮䢉䢙〇 㻰㻼㻡㻜㻜䚸㧗㏿ᗘ䡲䢎䢓䛿䢁䡫䡴♫〇 㻹㻱㻾㻵㻌㻯㻭㻹㻌㻽㻝㼂 䜢⏝䛔䛶ྍど໬ヨ㦂䜢ᐇ᪋䛧䛯䚹ヨ㦂∦䛿 㻿㻹㻠㻥㻜 ᮦ䛾㻌ᖹᯈ䜢⏝䛔䚸䢘䡮䢐䛿 㻹㻳㻙㻡㻜㼀䚸䃥㻝㻚㻞㼙㼙 䜢⏝䛔䛯䚹㻌ᮏㄪᰝ䛷䛿䢖䡬䡷䢚㻛䡭䡬䡴䛾㛫㝸ཬ䜃ඛ⾜䛾㐪䛔䛻䛴䛔䛶䡿䢚䡬䡼䜢ྲྀᚓ㻌⁐᥋䢉䡫䢀䢚

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䠄䠍䠅䢖䡬䡷䢚䛸䡭䡬䡴㛫㝸䛾㐪䛔㻌㻌 㻌 㻌 ᅗ 㻞 䛻䢖䡬䡷䢚㻛䡭䡬䡴㛫㝸䜢 㻟䡚㻤㼙㼙 䜈ኚ໬䛥䛫䛯ሙྜ䛾⁐⼥ụ㻌࿘㎶䜢ྵ䜐ྍど໬㟼Ṇ⏬ീ䜢♧䛩䚹䛣䛣䛷䚸㻌䡴䢗䡹䡸䢚䡦䡫䢀䢅䡹䢚䢕ᅗ㸯 ྍど໬ヨ㦂⿦⨨ᴫせᅗ
㛫㝸5mm
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㛫㝸3mm
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㻌 㻌 㻌 䢖䡬䡷䢚㻛䡭䡬䡴㛫㝸䛸䛿䚸ẕᮦ⾲㠃ୖ䛷䛾↷ᑕ䢇䢚㻌⁐㔠䛾┒䜚ୖ䛜䜚䡬䢍୰ᚰ఩⨨䛸䡭䡬䡴㟁ᴟ䢘䡮䢐䛾ᘏ㛗⥺ୖ䛸䛾㻌㛫㝸䜢♧䛩䚹䛺䛚䚸䢖䡬䡷䢚ฟຊ䛿඲䛶 㻝㻜㼗㼃 䛸㻌䛧䚸䢖䡬䡷䢚༢⊂䛻䛚䛔䛶䡹䢆䢛䡫䡼䛾Ⓨ⏕䜢ᢚไ䛩㻌䜛䛣䛸䛜䛷䛝䜛䡿䢚䜱䢈䡧䡬䡲䡹᮲௳䛸㏿ᗘ䛷ヨ㦂䜢㻌ᐇ᪋䛧䛯䚹㻌

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(1) 㺸㺎㺙㺼/㺏㺎㺖㛫㝸 3mm   (2) 㺸㺎㺙㺼/㺏㺎㺖㛫㝸 5mm

㻌 㻌 䢖䡬䡷䢚㻛䡭䡬䡴㛫㝸䛜 㻟㼙㼙 䛷䛿䚸䡭䡬䡴ᨺ㟁䛻䜘䜚㻌ᙧᡂ䛥䜜䜛⁐⼥ụ⾲㠃䛜ኚື䛧䚸ඛ⾜䛩䜛䢖䡬䡷䢚㻌㻌 䛾䡳䡬䢊䡬䢕ᙧᡂ䛻ᙳ㡪䜢ཬ䜌䛧䚸䡳䡬䢊䡬䢕๓᪉䛾㻌

㛫㝸8mm
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⁐㔠䛾┒䜚ୖ䛜䜚㻌 ヨ㦂∦⾲㠃ୖ䜎䛷⁐㔠䛜┒䜚ୖ䛜䜛⤖ᯝ䛸䛺䜚㻌㻌 䡹䢆䢛䡫䡼䛜㢧ⴭ䛻Ⓨ⏕䛩䜛䛣䛸䛜ศ䛛䛳䛯䚹㻌㻌 ḟ䛻䚸䢖䡬䡷䢚㻛䡭䡬䡴㛫㝸䛜 㻡㼙㼙 䛾ሙྜ䚸䢖䡬䡷䢚䛻䜘㻌

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㻌 䜛⁐⼥ụ䛸䡭䡬䡴䛻䜘䜛⁐⼥ụ䛜ྜయ䛧䜘䜚኱䛝䛺㻌 (3) 㺸㺎㺙㺼/㺏㺎㺖㛫㝸 8mm    㸦㺸㺎㺙㺼ඛ⾜ࡢሙྜ㸧㻌 ⁐⼥ụ䛜ᙧᡂ䛥䜜䚸᭱䜒䡹䢆䢛䡫䡼䛾Ⓨ⏕䛜ᑡ䛺䛔㻌 ᅗ 2 㺸㺎㺙㺼/㺏㺎㺖㛫㝸ࡢ㐪࠸࡟ࡼࡿ⁐⼥ụ࿘ࡾࡢ≧ἣ㻌 ᮲௳䛷䛒䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹᭱ᚋ䛻䢖䡬䡷䢚㻛䡭䡬䡴㻌− 102 −㻌 㛫㝸䜢 㻤㼙㼙 䛻㞳䛧䛯ሙྜ䛻䛿䢖䡬䡷䢚䛻䜘䜛⁐⼥ụ䛸䡭䡬䡴䛻䜘䜛⁐⼥ụ䛜㐃⤖䛩䜛䛜䚸ᣓ䜜䛜Ⓨ⏕䛧䛶䛔䜛䛣㻌䛸䛜ศ䛛䜛䚹䡭䡬䡴䛻䜘䜛⁐⼥ụ䛾ኚື䛜䚸ᣓ䜜㒊ศ䜈┒䜚ୖ䛜䜛䛣䛸䛷ඛ⾜䛩䜛䢖䡬䡷䢚䛾⁐⼥ụ䜒ኚື䛧䚸෌䜃㻌䡹䢆䢛䡫䡼䛾Ⓨ⏕䛜ቑ኱䛩䜛⤖ᯝ䛷䛒䛳䛯䚹ᚑ䛳䛶䚸ᮏヨ㦂䛾䢖䡬䡷䢚ඛ⾜䛻䛚䛡䜛䢆䡮䢈䢚䢔䡫䢀䢚⁐᥋䛷䛿䚸䢖䡬䡷䢚㻛䡭䡬䡴㻌㛫㝸䛿 㻡㼙㼙 䛾ሙྜ䛜䚸᭱䜒䡹䢆䢛䡫䡼䛜పῶ䛷䛝䜛᮲௳䛷䛒䜛䛣䛸䛜ุ᫂䛧䛯䚹ḟ䛻ᮏᇶᮏ᮲௳䜢⏝䛔䛶䚸䢖䡬䡷䢚㻌ඛ⾜䛸䡭䡬䡴ඛ⾜䛾᮲௳䛻䛚䛡䜛䡹䢆䢛䡫䡼Ⓨ⏕䛾㐪䛔䛻䛴䛔䛶ྍど໬⏬ീ䜢ᅗ 㻟 䛻♧䛩䚹㻌㻌㻔㻞㻕㻌 䢖䡬䡷䢚ඛ⾜䛸䡭䡬䡴ඛ⾜䛾㐪䛔㻌

䡭䡬䡴ඛ⾜
䡭䡬䡴ඛ⾜

䢖䡬䡷䢚ඛ⾜䢖䡬䡷䢚ඛ⾜㻌 䢖䡬䡷䢚ඛ⾜䛸䡭䡬䡴ඛ⾜䛷䛿๓⪅䛾㻌᪉䛜䡹䢆䢛䡫䡼䛾Ⓨ⏕䛜ᢚไ䛷䛝䜛䛣䛸㻌䛜☜ㄆ䛥䜜䛯䚹䡭䡬䡴ඛ⾜䛾ሙྜ䚸㻌䡭䡬䡴ᨺ㟁䛻䜘䜚ᙧᡂ䛥䜜䛯⁐⼥ụ㻌䛾ኚື䛜ᚋ⾜䛾䢖䡬䡷䢚䛻䜘䜛䡳䡬䢊䡬㻌䢕䛾ᙧᡂ䛻ᑐ䛧䛶୙Ᏻᐃᛶ䜢ቑ኱㻌䛥䛫䜛䛣䛸䛛䜙䚸䡹䢆䢛䡫䡼䛜㢧ⴭ䛻Ⓨ㻌

䡭䡬䡴

䢖䡬䡷䢚

䡭䡬䡴

䢖䡬䡷䢚


(1) 㺸㺎㺙㺼ඛ⾜㸦㧗㏿ᗘ㺔㺰㺵㸧  (2)㺏㺎㺖ඛ⾜㸦㧗㏿ᗘ㺔㺰㺵㸧
䡭䡬䡴ඛ⾜
䡭䡬䡴ඛ⾜

⏕䛩䜛䛣䛸䛜ศ䛛䛳䛯䚹㻌䢖䡬䡷䢚ඛ⾜䛷䛿䢖䡬䡷䢚䛻䜘䜚ᙧᡂ䛥㻌䡭䡬䡴䢀䡬䡽

䡭䡬䡴䢀䡬䡽
⁐᥋᪉ྥ䜜䛯⁐⼥ụ䜈䡭䡬䡴⁐᥋⏝䢘䡮䢐䛾㻌⁐⁲ࡀ྾཰ࡉࢀࠊ㺛㺨㺽㺍㺞ࡀᢚไ࡛ࡁࡿࡇ࡜ࡀุࡗࡓࠋ㻌

䢖䡬䡷



䢖䡬䡷

(3) 㺸㺎㺙㺼ඛ⾜㸦ᐃⅬ㺔㺰㺵㸧  (4) 㺏㺎㺖ඛ⾜㸦ᐃⅬ㺔㺰㺵㸧㸲㸬ࡲ࡜ࡵᅗ 3 㺸㺎㺙㺼ඛ⾜࡜㺏㺎㺖ඛ⾜ࡢ㐪࠸㸦ୖ;㧗㏿ᗘ㺔㺰㺵ࠊୗ;ᐃⅬ㺔㺰㺵䢖䡬䡷䢚䞉䡭䡬䡴䢆䡮䢈䢚䢔䡫䢀䢚ἲ䛻䛚䛡䜛䢖䡬䡷䢚䛸䡭䡬䡴䛾఩⨨㛵ಀ䜢ኚ໬䛥䛫䛯ሙྜ䛾䚸䡹䢆䢛䡫䡼䛾Ⓨ⏕≧ἣ䛾ྍど໬㻌䜢⾜䛳䛯䚹㻌
ᮏヨ㦂䛻䛚䛔䛶䚸䢖䡬䡷䢚ඛ⾜䛻䛚䛔䛶䢖䡬䡷䢚㻛䡭䡬䡴㛫㝸䛜 㻡㼙㼙 䛾ሙྜ䚸䡹䢆䢛䡫䡼䛾Ⓨ⏕䛜᭱䜒ᑡ䛺䛔᮲௳䛷㻌䛒䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹㻌㻌 㻌 㻌 ௒ᚋ䛿䚸ᮏヨ㦂᮲௳䜢⏝䛔䛶ྛ✀䛾⁐᥋≉ᛶホ౯䜢⾜䛖ணᐃ䛷䛒䜛䚹㻌㻌 㻌 ᭱ᚋ䛻䚸ᮏ◊✲䛾ᐇ᪋䛻䛒䛯䜚䚸䛤ᣦᑟ㡬䛝䜎䛧䛯኱㜰኱Ꮫ㻌 ᥋ྜ⛉Ꮫ◊✲ᡤ㻌 ᡤ㛗㻌 ∦ᒣᩍᤵ䚸Ỉ㇂ඛ㻌 㻌㻌 㻌 ⏕䛻ឤㅰ⏦䛧ୖ䛢䜎䛩䚹㻌

㻌
㻌
ཧ⪃ᩥ⊩㻌

㼇㻝㼉ᕝཱྀ㻌 ໏䚸䢖䡬䡷䢚䞉䡭䡬䡴䢆䡮䢈䢚䢔䡫䢀䢚⁐᥋ᢏ⾡䛾⌧≧䛸௒ᚋ䛾ㄢ㢟䚸㻵㻵㻯㻌 㻾㻱㼂㻵㻱㼃䚸㻺㼛㻠㻞䚸䠄㻞㻜㻜㻥䠅䚸䡌㻠㻥䡚㻌㻌䠄ඹྠ◊✲ศ㔝㻌 㻌 䝺䞊䝄᥋ྜᶵᵓᏛศ㔝䠅㻌− 103 −

ྛ✀ᮦᩱࡢ࣮ࣞࢨ᥋ྜᛶ࡜ࡑࡢ᥋ྜ㒊ࡢ≉ᛶホ౯㹼 ࣮ࣞࢨ⁐᥋⥅ᡭᙧ≧࡜ᘬᙇࡏࢇ᩿ᙉᗘࡢ㛵ಀ࡟ࡘ࠸࡚ 㹼୕㔜┴ᕤᴗ◊✲ᡤᯘ୍ဢࠊቑ஭Ꮥᐇ㸯㸬┠ⓗ   ⮬ື㌴ࡢ㍍㔞໬࡬ࡢྲྀ⤌࡟࠾࠸࡚ࡣࠊ㒊ᮦࡢⷧ⫗໬ࠊ␗ᮦ᥋ྜࡀ╔┠ࡉࢀ࡚࠸ࡿࠋ᭦࡟࣮ࣞࢨⓎಙᶵࡢప౯᱁໬ࡶ㐍ࢇ࡛࠾ࡾࠊ௒ᚋࠊ〇㐀ࣛ࢖ࣥ࡟࠾࠸࡚࣮ࣞࢨ᥋ྜࡢᑟධࡣቑ࠼ࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡇ࡛ࠊ
⌧ᅾከࡃ⏝࠸ࡽࢀ࡚࠸ࡿࢫ࣏ࢵࢺ⁐᥋࡜ẚ࡭ྠ➼௨ୖࡢ᥋ྜᙉᗘࢆᚓࡿࡓࡵ࡟ࠊ࣮ࣞࢨගࢆ࢞ࣝࣂࣀ࣑
࣮ࣛ࡟࡚」ᩘࡢᙧ≧࡟㉮ᰝࡉࡏ࡚㗰ᯈࡢ㔜ࡡྜࢃࡏ᥋ྜࡋࠊ࡝ࡢࡼ࠺࡞ᙧ≧ࡢࣅ࣮ࢻ࡟ࡋࡓ᫬ࡀᙉᗘⓗ࡞ຠᯝࡀ࠶ࡿ࠿࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓࠋ㸰㸬ᐇ㦂᪉ἲ   㸯㸧ヨ㦂∦ᙧ≧ཬࡧᮦᩱ㸸100mm25mmt1.0mmࠊ୍⯡ຍᕤ⏝෭ᘏ㗰ᯈ(SPCC)   㸰㸧᥋ྜ᪉ἲ㸸ᅗ㸯࡟♧ࡍࡼ࠺࡟ヨ㦂∦ࢆ
30mm 㔜ࡡྜࢃࡉࡏ㔜ࡡྜࢃࡏ᥋ྜࢆᐇ᪋ࡋࡓࠋ   㸱㸧࣮ࣞࢨ↷ᑕ㸸ࣇ࢓࢖ࣂ࣮࣮ࣞࢨ     (Ἴ㛗 1070nmࠊ᭱኱ฟຊ 2kw)ࢆ
⏝࠸࢞ࣝࣂࣀࢫ࢟ࣕࢼ࡟࡚࣮ࣞࢨගࢆ
㉮ᰝࡉࡏ࡚ᐇ᪋ࡋࡓࠋ   㸲㸧⁐᥋ࣅ࣮ࢻᙧ≧㸸ࣅ࣮ࢻ඲㛗ࢆ 20mm ୍ᐃ࡜࡞ࡿࡼ࠺࡟ࠊ

ᅗ㸯 ᥋ྜ᪉ἲ

ᅗ 2 ࡟♧ࡍ 4 ✀㢮ࡢᙧ≧࡛᥋ྜࢆ⾜ࡗࡓࠋPP   㸳㸧⁐᥋᮲௳㸸     ⾲ 1 ࡢ᮲௳࡟࡚᥋ྜࢆᐇ᪋ࡋࡓࠋ⾲㸯 ⁐᥋᮲௳
ࣃ࣓࣮ࣛࢱ

タᐃ್

࣮ࣞࢨฟຊ

㸯㹩㹵

㉮ᰝ㏿ᗘ

30mm/sࠊ40mm/sࠊ50mm/s

      ͤ࢞ࣝࣂࣀࢫ࢟ࣕࢼ⬟ຊ㸸↔Ⅼ఩⨨ࢫ࣏ࢵࢺᚄȭ340ȣm
ࢫ࢚࢟ࣕࣥࣜ࢔ 200200mmᅗ㸰 ࣅ࣮ࢻᙧ≧㸱㸬⤖ᯝ࣮ࣞࢨ⁐᥋ࡢ⁐ࡅ㎸ࡳ῝ࡉࢆ☜ㄆࡍࡿࡓࡵ࡟ࠊ㔜ࡡྜࢃࡏ᥋ྜࡢୗഃࡢⷧᯈࡢ᥋ྜ᩿㠃ࡢ⤌⧊෗┿ࢆᅗ 3 ࡟♧ࡍࠋࡲࡓᅗ 3 ࡼࡾࠊୗഃࡢⷧᯈ࡬ࡢ࣮ࣞࢨග࡟ࡼࡿ⁐ࡅ㎸ࡳ῝ࡉࢆᐃࡋࡓ⾲ 2 ࡟♧ࡍࠋ㉮ᰝ㏿ᗘࡢ㐜࠸⁐᥋㏿ᗘ 30mm/s ࡟࠾࠸࡚ࡣᯈཌ 1mm ࡢ⁐ࡅ㎸ࡳࡀ☜ㄆ࡛ࡁࡓࠋ

− 104 −⾲㸰 ⁐ࡅ㎸ࡳ῝ࡉ㉮ᰝ㏿ᗘ⁐ࡅ㎸ࡳ῝ࡉ

30mm/s1mm

40mm/s0.54mm50mm/s0.25mmᅗ  ࡟⁐᥋᮲௳࡜ᘬᙇࡏࢇ᩿ᙉᗘࡢ㛵ಀࢆ♧ࡍࠋᚓࡽࢀࡓᘬᙇࡏࢇ᩿ᙉᗘࢆࠊ-,6= ࢫ࣏ࢵࢺ⁐᥋㒊ࡢ᳨ᰝ᪉ἲ࡟ᥖ㍕ࡉࢀ࡚࠸ࡿ⁐᥋㒊ࡢ➼⣭࡟♧ࡉࢀ࡚࠸ࡿࡏࢇ᩿ᘬᙇᙉᗘ࡜ẚ㍑ࡍࡿ࡜ࠊ⁐᥋㏿ᗘ PPV ࡢ㉮ᰝ㏿ᗘࡢᙧ≧Ϫ࡛㉮ᰝࡋࡓࡶࡢࡣࠊ% ⣭ ᙉࡉࢆせࡍࡿ⁐᥋㒊 ௨ୖࡢᙉᗘࡀᚓࡽࢀࡿࡇ࡜
ࡣ☜ㄆ࡛ࡁࡓࠋࡲࡓࠊ⁐ࡅ㎸ࡳࡀὸ࠸㉮ᰝ㏿ᗘ㸦40mm/sࠊ50mm/s㸧࡛ࡣࠊ ᐃヨ㦂∦㛫࡛ࡢᙉᗘࡢࣂ
ࣛࢶ࢟ࡀ኱ࡁࡃ࡞ࡿഴྥ࡟࠶ࡗࡓࠋ
ࡲࡓࠊᅗ 5 ࡟⁐᥋㏿ᗘ㸸30mm/s ࡟࠾ࡅࡿࣅ࣮ࢻᙧ≧࡜ࡏࢇ᩿ᘬᙇࡾヨ㦂ࡢ◚᩿≧ែࢆ♧ࡍࠋ

30mm/s

40mm/sᅗ㸲 ⁐᥋᮲௳࡜ᘬᙇࡏࢇ᩿ᙉᗘ

50mm/sᅗ㸱 ⁐ࡅ㎸ࡳ῝ࡉ   ࡲࡓࠊSolidworks ࢆ⏝࠸࡚ࠊ⥺ᙧ㡿ᇦ࡟࠾࠸࡚ࠊᙧ≧Ϩ࡜ᙧ≧Ϫ࡟࠾ࡅࡿᛂຊ㞟୰ࢆゎᯒࡋࡓ⤖ᯝࢆᅗ 6 ࡟♧ࡍࠋᙧ≧Ϩ࡟࠾࠸࡚ࡣࠊ᥋ྜ㒊ࡢ୍ᩥᏐࢆྲྀࡾ
ᅖࡴࡼ࠺࡟ᛂຊࡀ㞟୰ࡍࡿゎᯒ⤖ᯝ࡜࡞ࡗࡓࡀࠊ
ᙧ≧Ϫ࡟࠾࠸࡚ࡣࠊ㹓Ꮠᆺࡢ᥋ྜ⥺ࡢࡲࢃࡾ࡟
㞟୰ࡀࡳࡽࢀࡎᛂຊࡀ㞟୰⦆࿴ࡉࢀࡓゎᯒ⤖ᯝᅗ㸳 ࣅ࣮ࢻᙧ≧࡜◚᩿≧ែ

࡛࠶ࡗࡓࠋ
㸲㸬ࡲ࡜ࡵ
  ࣮ࣞࢨග࡟ࡼࡿ㔜ࡡྜࢃࡏ᥋ྜ࡟࠾࠸࡚ࠊ
ࢫ࣏ࢵࢺ⁐᥋࡜ྠ➼⛬ᗘࡢᙉᗘࢆᚓࡿࡓࡵ࡟ࠊ
࣮ࣞࢨගࢆ㉮ᰝࡉࡏࡿࣅ࣮ࢻࡢᙧ≧ࢆ᳨ウࡋࡓ⤖ᯝࠊ㹓ࡢᏐᙧࡢᙧ≧Ϫࡀ -,6= ࢫ࣏ࢵࢺ
⁐᥋㒊ࡢ᳨ᰝ᪉ἲ࡟࠾ࡅࡿࠊB ⣭(ᙉࡉࢆせࡍࡿ⁐᥋㒊)ࢆ‶㊊ࡍࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋࡋ࠿ࡋࠊ

ᙧ≧Ϩ

ᙧ≧Ϫ

ࡲࡔヨ⾜ࢆ⾜ࡗࡓࣅ࣮ࢻᙧ≧ࡣᩘ✀㢮࡛࠶ࡿࡓࡵ
᳨ウࢆ⥆ࡅࡿᚲせࡀ࠶ࡿ࡜⪃࠼ࡿࠋᅗ㸴 ゎᯒ⤖ᯝ㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨ᥋ྜᶵᵓᏛศ㔝㸧− 105 −

ᙉረᛶຍᕤ䜢᪋䛧䛯 $=% ỗ⏝䝬䜾䝛䝅䜴䝮⢊ᮎྜ㔠ᢲฟᮦ䛾ຊᏛ≉ᛶ䛸㞟ྜ⤌⧊ゎᯒ㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ㻌 ᶵᲔ⣔㻌 㻌 㙊ᅵ 㔜ᬕ ⥴ゝ䛚䛔䛶䛿㠃ෆ␗᪉ᛶ䜢ホ౯䛩䜛㝿䛾ᘬᙇヨ㦂∦䛾᥇ྲྀ᪉ྥ䛻ᬮ໬⌧㇟䜢㛵䛧䛶䠈)LJ 䛾ᶍᘧᅗ䛻䜘䛳䛶♧䛩䜘䛖䛻ᢲฟ᪉ྥ䛻ᖹ⾜䛺᪉ㄏⓎ䞉ಁ㐍䛥䛫䠈⮬↛⏺䛾䝞䝷䞁䝇䜢ⴭ䛧䛟୙Ᏻᐃ໬䛥䛫䛶䛔䜛䠊ྥ䜢 㼻䠈ᯈᖜ᪉ྥ䜢 㼻䛸䛧䠈䛭䜜䛮䜜䛻ᑐᛂ䛩䜛᩿㠃䜢 E

&2 䜺䝇䛻ὀ┠䛩䜛䛸⥲᤼ฟ㔞䛾⣙ 䛜⮬ື㌴䜔⯪⯧䠈㣕⾜᩿㠃䠈E ᩿㠃䛚䜘䜃 E ᩿㠃䛸䛧䛯䠊ᅽ⦰ヨ㦂∦䛻䛴䛔䛶䜒ᶵ䛺䛹䛾⛣ືయ䛛䜙䛾᤼Ẽ䜺䝇䛷䛒䜛䠊῝้໬䛩䜛ᆅ⌫⎔ቃၥྠᵝ䛾ᇶ‽䛸䛧䠈䛭䜜䛮䜜䛾᪉ྥ䛻䛚䛔䛶ヨ㦂∦䜢స〇䛧䛶ホ㢟䜈䛾ᑐᛂ䜔ᯤῬ䛩䜛ཎἜ䛾᭷ຠ฼⏝䛺䛹䛾ㅖၥ㢟䛻ᑐ䛧䛶䠈౯䜢⾜䛳䛯䠊⮬ື㌴⏘ᴗ䛻䛚䛡䜛㍍㔞໬ᢏ⾡䛾᭦䛺䜛㐍Ṍ䞉Ⓨᒎ䛜ồ䜑䜙䜜

PP
E ᩿㠃⋡䛾ቑຍ䛿┠䜢ぢᙇ䜛䜒䛾䛜䛒䜛䠊䜎䛯䛭䛾ᶵ⬟䛜┈䚻㐍ᒎ䛩r䜛䛸ྠ᫬䛻฼⏝⪅ഃ䛾ᶵືᛶྥୖ䛻ᑐᛂ䛩䜉䛟䠈ᶵჾ䛾ᑠᆺ㍍
㔞໬䜈䛾ᙉ䛔䝙䞊䝈䛜₯ᅾ䛧䛶䛔䜛䠊䛣䛾䜘䛖䛺≧ἣ䛻䛚䛔䛶䠈㕲㗰ᮦᩱ䛾ẚ㔜䛻ᑐ䛧䛶⣙ 䠈௦⾲ⓗ䛺㍍ྜ㔠䛷䛒䜛䜰䝹䝭䝙r䜴䝮ྜ㔠䛻ᑐ䛧䛶⣙  䛾ẚ㔜䜢᭷䛩䜛䝬䜾䝛䝅䜴䝮䠄0J䠅ྜ㔠䛿ᐇ⏝㔠ᒓ୰䛷᭱㍍㔞⣲ᮦ䛷䛒䜚䠈䛭䛾ᵓ㐀ᮦᩱ䛸䛧䛶ᐇ⏝໬E ᩿㠃

r䜈䛾ᮇᚅ䜒኱䛝䛟䠈㍍㔞໬ᮦᩱ䛾௦⾲䛷䛒䜛䜰䝹䝭䝙䜴䝮ྜ㔠䛸PP&URVVVHFWLRQྠ➼௨ୖ䛾㧗ᙉᗘ䡡㧗㠎ᛶ䛜せồ䛥䜜䜛䠊㧗ᙉᗘ 0J ྜ㔠䛾ᚤ⣽໬䝥䝻䝉䝇䛻㛵䛩䜛◊✲䛷䛿䠈([WUXVLRQGLUHFWLRQ䛶䛔䜛䠊௚᪉䠈඲ୡ⏺䛻䛚䛡䜛ᦠᖏ㟁Ꮚᶵჾ䜔䝜䞊䝖 3& 䛾ᬑཬPPᐊຠᯝ䜺䝇䛷䛒䜛஧㓟໬Ⅳ⣲䠄&2 䠅䛿ᆅ⌫㛫㡿ᇦ䛷ᙉຍᕤṍ䜢௜୚䛩䛶䛔䜛䠊䛧䛛䛧䛺䛜䜙䠈㓄ྥᛶ䛾ほⅬ䛛䜙䛿୍᪉ྥ䛷䛾ᅽᘏຍᕤ)LJ 6FKHPDWLF LOOXVWUDWLRQ RI WHQVLOH VSHFLPHQV PDFKLQHG
IURPH[WUXGHG$=%SODWHPDWHULDO䜢⧞䜚㏉䛩䛣䛸䛻䜘䛳䛶㞟ྜ⤌⧊䛿䛥䜙䛻ᙉ䜎䜛䛯䜑䠈0J ྜ㔠䛻 ⤌⧊䛚䜘䜃㞟ྜ⤌⧊䜛䛣䛸䛷ᚤ⣽䛺ືⓗ෌⤖ᬗ⤌⧊䜢ᙧᡂ䛩䜛᪉ἲ䛜ከᩘሗ࿌䛥䜜䛚䛡䜛ᶵᲔⓗ≉ᛶ䛾␗᪉ᛶ䠄౛䛘䜀䠈ᘬᙇᙉ䛥䛜ᅽᘏ᪉ྥ䠈ᯈᢲฟᗘ 䉝䛚䜘䜃 䉝䛻䛚䛔䛶స〇䛧䛯 $=% ⢊యᢲᖜ᪉ྥ䛚䜘䜃ᯈཌ᪉ྥ䛻䜘䛳䛶኱䛝䛟␗䛺䜛䠅䛜⏕䛨䠈䝥䝺䝇ᡂᙧฟᮦ䛾ගᏛ㢧ᚤ㙾⤌⧊෗┿䜢 )LJ 䛻♧䛩䠊䛣䛣䛷䛿䠈ᢲฟ᪉ྥ䜢䛿䛨䜑䛸䛩䜛஧ḟⓗ䛺ᡂᙧຍᕤᛶ䛾పୗ䜢ᣍ䛟䠊ረᛶຍᕤ䛻䜘䛻ᑐ䛩䜛ゅᗘ 㼻᪉ྥ䛾᩿㠃⤌⧊䜢ほᐹ䛧䛯䠊$=% ཎᩱ⢊ᮎ䜛ᚤ⣽䛺ືⓗ෌⤖ᬗ⢏䛾ᙧᡂ䛸ྠ᫬䛻䠈㞟ྜ⤌⧊䛾⦆࿴䠄㓄ྥ

䠄1 䠅䜢⏝䛔䛯ሙྜ䠈ᢲฟᮦ䛾⤌⧊䛿ᖹᆒ⢏ᚄ䛜⣙ 䃛P 䛾ᚤᛶ䛾↓⛛ᗎ໬䠅䜢ᐇ⌧䛩䜛䝥䝻䝉䝇䛜☜❧䛷䛝䜜䜀䠈0J ྜ㔠䛾⣽䛺➼㍈⢏䛛䜙ᵓᡂ䛥䜜䛶䛔䜛䛜䠈඲య䛸䛧䛶 䡚䃛P 䛾⠊ᅖᐇ㒊ᮦ䛸䛧䛶䛾ᒎ㛤䛜኱䛔䛻ᮇᚅ䛷䛝䜛䠊ᮏ◊✲䛻䛚䛔䛶䛿䠈䛷ᚤ⢒ΰ⢏⤌⧊䜢࿊䛧䛶䛔䜛䠊䛣䛾ཎᩱ⢊య䛻ᑐ䛧䛶 5&3 ຍᕤ

0J ྜ㔠⢊య䛻ᑐ䛧䛶䠈➼᪉ⓗ䛻ᙉຍᕤṍ䜢ᑟධ䞉⵳✚䛩䜛䜢᪋䛩䛣䛸䛷 䃛P ⛬ᗘ䛾⢒⢏⤌⧊䛾⏕ᡂẚ⋡䛜ῶᑡ䛧䛶䛔䜛

5ROO&RPSDFWLRQ 5&3 ᕤἲ䜢⏝䛔䛶䠈㧗ᙉᗘ䡡㧗㠎ᛶ䛛䛴➼᪉䛣䛸䛜ุ䜛䠊1  䝃䜲䜽䝹䛻䛚䛔䛶䛿 䡚䃛P 䛻䜎䛷ᚤ⣽ⓗᙉᗘ≉ᛶ䜢᭷䛩䜛 0J ྜ㔠䛾㛤Ⓨ䜢┠ⓗ䛸䛩䜛䠊 ໬䛧䠈ྠ᫬䛻⤖ᬗ⢏ᚄ䛾ᆒ㉁໬䛜㐍䜣䛷䛔䜛䠊୍᪉䠈䉝ᢲฟᮦ䛻䛚䛔䛶䜒ྠᵝ䛻䠈5&3 ຍᕤᅇᩘ䛾ቑຍ䛻క䛔䠈ᚤ⣽䛺⤖ᬗ ᐇ㦂᪉ἲᮏ◊✲䛷䛿䠈ỗ⏝䝬䜾䝛䝅䜴䝮ྜ㔠 $=% ᢲฟᮦ䛛䜙ษ๐ຍᕤ䛻䜘䜚᥇ྲྀ䛧䛯ᖹᆒ⢊ᮎᚄ PP 䛾⢒⢏⢊య䜢ᢞධཎᩱ䛸䛧䛶⏝䛔䛯䠊5&3 ຍᕤ䛷䛿ཎᩱ⢊ᮎ䛸䛺䜛⢒኱䛺 0J ྜ㔠⢊య䜢཮䝻䞊䝹䛻ᢞධ䛧䛶ᅽ⦰䡡䛫䜣᩿ຍᕤ䜢᪋䛩䠊䛣䛾䜘䛖䛺㐃⥆ⓗ䛺ረᛶຍᕤ䜢⧞䜚㏉䛩䛣䛸䛷 0J ⢊య䛻ᑐ䛧䛶➼᪉ྥⓗ䛺ṍ⢏䛾ᙧᡂ䛸䛭䛾ᆒ㉁໬䛜ㄆ䜑䜙䜜䜛䠊ణ䛧䠈ཎᩱ⢊ᮎ䠄1 䠅䜢⏝䛔䛯ሙྜ䠈䃛P ๓ᚋ䛾➼㍈⢏䛻ຍ䛘䛶 䃛P 䜢㉸䛘䜛⢒኱⢏䛜ほᐹ䛥䜜䜛䠊䛣䜜䛿ᢲฟ᫬䛾ືⓗ෌⤖ᬗ䛻䜘䜚ᙧᡂ䛥䜜䛯➼㍈⢏䛜 䉝䛾㧗 ᇦ䛻䛚䛔䛶⢏ྠኈ䛾ྜయ䡡ᡂ㛗䛧䛯䛣䛸䛻䜘䜛䛸⪃䛘䜙䜜䜛䠊

7 䉝

䜢ᆒ୍䛻ᑟධ䛩䜛䠊5&3 ຍᕤ䛻㝿䛧䛶䞞ᰩᮏ㚩ᕤᡤ〇䝻䞊䝷䞊

7 䉝

䝁䞁䝟䜽䝍䞊5&3 䜢⏝䛔䛯䠊ᮏ⿦⨨䛿┤ᚄ PP 䛾཮䝻䞊䝹䜢᭷䛧䠈✌ື᫬䛾䝻䞊䝹࿘㏿ᗘ䠗PPV䠈䝻䞊䝹㛫䛾⥺ຍ㔜䠗N1PP䠈䝻䞊䝹㛫㝸䠄タᐃ್䠅䠗PP 䛸䛧䛯䠊䛺䛚䠈 䝃

ཎᩱ⢊ᮎ
䠄1 䠅

䜲䜽䝹䛻䛚䛡䜛ཎᩱ⢊ᮎ䛾ຍᕤฎ⌮⬟ຊ䛿 aNJK 䛷䛒䜚䠈ᐇ㝿䛻⢊య䜢ຍᕤ䛧䛯㝿䛾ヨᩱཌ䜏䛛䜙⟬ฟ䛧䛯 5&3 䝟䝇ᙜ䜚䛾ᖹᆒᅽୗ⋡䛿 䛷䛒䛳䛯䠊5&3 ຍᕤ䛿ᖖ䛷⾜䛔䠈ຍᕤ

ᅇᩘ䠄1䠅䛾ᙳ㡪䜢ㄪᰝ䛩䜉䛟 1 a 䝃䜲䜽䝹䛸䛧䛶⢊య䜢స

1 〇䛧䛯䠊ᚓ䜙䜜䛯⢊య䜘䜚ᅽ⢊య䝡䝺䝑䝖䜢స〇䛧䠈ᢲฟຍᕤ䜢⾜䛳䛯䠊ᢲฟᮦ䛾ᶵᲔⓗ≉ᛶ䛻䛚䛡䜛㠃ෆ␗᪉ᛶ䛸⤌⧊䡡㞟ྜ⤌⧊䛾㛵ಀ䜢ゎᯒ䛩䜉䛟䠈▴ᙧ✰䜢᭷䛩䜛䝎䜲䝇䛻䜘䛳䛶ᖹᯈ≧ᢲฟᮦ䜢స〇䛧䛯䠊ᢲฟຍᕤ䛻䛚䛔䛶䛿 N1 Ἔᅽ㥑ືᘧ⦪ᆺ䝥䝺䝇ᡂᙧᶵ䜢⏝䛔䠈ᢲฟẚ୍ᐃ䛻䛶ຍᅽ䛧䛯䠊ᖹᯈᢲฟᮦ䛻
)LJ2SWLFDOPLFURVWUXFWXUHVRIKRWH[WUXGHG$=%SRZGHUDOOR\VYLD5&3SURFHVVZLWKGLIIHUHQWQXPEHURIF\FOHV− 106 −

ୖ㏙䛾䜘䛖䛻 䉝䠈1  䝃䜲䜽䝹ฎ⌮⢊య䛻䛶ཎᩱ⢊ᮎ䛸䛾ቑຍ䛸䛸䜒䛻䛭䛾㠃ෆ␗᪉ᛶ䛿ῶᑡ䛧䠈1  䛷䛿ゅᗘ䛻䜘䜙ẚ㍑䛧䛶㢧ⴭ䛺⤖ᬗ⢏ᡂ㛗䛜⏕䛨䛺䛛䛳䛯せᅉ䛻䛴䛔䛶䠈⤖ᬗ

䛪䃢\ a03D 䛾⪏ຊ್䜢♧䛧䛯䠊䛣䛾䜘䛖䛺㠃ෆ␗᪉ᛶ⢏⏺䠄*UDLQERXQGDU\*%䠅䜢 7(0 䛻䜘䜚ヲ⣽䛻ほᐹ䛧䛯⤖ᯝ䠈䛾ቑῶ䛻ཬ䜌䛩せᅉ䛾୍䛴䛸䛧䛶䠈5&3 ຍᕤ䛻䜘䜛ືⓗ෌⤖ᬗ౛䛘䜀 )LJ 䛻♧䛩䜘䛖䛻⢏⏺䛻 䡚QP ⛬ᗘ䛾ᚤ⣽⢏Ꮚ䛜⢏䛾ᚤ⣽䞉ᆒ㉁໬䛸㓄ྥᛶไᚚ䛾୧⪅䛻䜘䜛ᙳ㡪䛜⪃䛘䜙䜜䜛䠊Ꮡᅾ䛧䛶䛚䜚䠈䛭䛾㒊ศ䛻䛚䛔䛶⢏⏺䛜኱䛝䛟‴᭤䛧䛶䛔䜛䛣䛸䛜

๓㏙䛾 )LJ 䛻䛚䛔䛶䠈ཎᩱ⢊ᮎ䠄1 䠅䛷䛾ᖹᆒ䝅䝳䝭䝑䝖ᅉᏊ䜟䛛䜛䠊('; 䛾⤖ᯝ䠈䛣䜜䜙⢏Ꮚ䛿 $O0Q ໬ྜ≀䛷䛒䜛䛣䛸䛜☜䛿 E ᩿㠃䛜䜘䜚኱䛝䛺್䜢♧䛧䛶䛚䜚䠈䛭䛾⤖ᯝ䠈ᘬᙇ⪏ຊ䛜ㄆ䛥䜜䛯䠊䛩䛺䜟䛱䠈ᅗ䛻䛚䛔䛶ⓑ䛔▮༳䛷♧䛩䜘䛖䛻ຍ⇕㐣⛬పୗ䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛䛜䠈ᐇ㝿䛻 㼻᪉ྥ䜘䜚䜒 㼻᪉ྥ䛾䛻䛚䛔䛶⢏⏺⛣ື䛜⏕䛨䜛㝿䠈ୖグ䛾ᚤ⣽໬ྜ≀⢏Ꮚ䛾ᘬᙇ⪏ຊ䛿ᑠ䛥䛟䛺䛳䛶䛔䜛䠊୍᪉䠈䝅䝳䝭䝑䝖ᅉᏊ䛾ቑຍ䛻䛸䜒SLQQLQJ ຠᯝ䛻䜘䛳䛶⢏ᡂ㛗䛜ᢚไ䛥䜜䛯䛸᥎ᐹ䛥䜜䜛䠊䛺䛔ఙ䜃䜒ቑ኱䛩䜛䛯䜑䠈㼻᪉ྥ䛾ఙ䜃䛜䜒䛳䛸䜒኱䛝䛟䛺䛳䛶䛔䜛䠊䛥䜙䛻 5&3 ຍᕤ䜢᪋䛩䛣䛸䛻䜘䜚䠈⤖ᬗ⢏䛜ᚤ⣽໬䛧䠈

*UDLQERXQGDU\+DOO3HWFK 䛾㛵ಀ䛛䜙䛔䛪䜜䛾ᘬᙇ᪉ྥ䛻䛚䛔䛶䜒⪏ຊ䛿ቑຍ

$O0Q

䛩䜛䛸⪃䛘䜙䜜䜛䛜䠈㼻᪉ྥ䛷䛿䠈5&3 ຍᕤᅇᩘ䛾ቑຍ䛻క䛔ᖹᆒ䝅䝳䝭䝑䝖ᅉᏊ䛜ቑຍ䛧䠈㼻᪉ྥ䛾ᖹᆒ䝅䝳䝭䝑䝖ᅉᏊ䛾್䛻㏆䛵䛟䛯䜑䠈⤖ᯝⓗ䛻 㼻᪉ྥ䠈㼻᪉ྥ䠈㼻᪉ྥ䛸䜋䜌ྠ䛨⪏ຊ್䜢♧䛧䠈␗᪉ᛶ䛿ῶᑡ䛩䜛䠊䛺䛚◚᩿ఙ䜃䛻㛵䛧䛶䛿䠈
)LJ 7(0REVHUYDWLRQRQJUDLQERXQGDULHVRI5&3HG$=%
SRZGHUDIWHUDQQHDOHGDW䉝 IRUNVḟ䛻䠈ᢲฟ᪉ྥ䛻ᑐ䛩䜛ゅᗘ 㼻䠈㼻䠈㼻᪉ྥ䛾ྛ᩿㠃䛷ୖグ䛸ྠᵝ䛾せᅉ䛻ຍ䛘䛶㓄ྥᛶ䛜↓⛛ᗎ໬䛩䜛䛣䛸䛷ᚤ⣽䞉
ᆒ㉁䛺➼㍈⢏䛷䛾ᗏ㠃䛚䜘䜃㠀ᗏ㠃䛷䛾⢏⏺䛩䜉䜚䛜άᛶ໬䛧䠈䛭䛾⤖ᯝ䠈5&3 ຍᕤᅇᩘ䛜ẚ㍑ⓗప䛔䝃䜲䜽䝹ᩘ䛾᮲௳ୗ䛷␗᪉ᛶ䛜ゎᾘ䛥䜜䛯䛸⪃䛘䜙䜜䜛䠊䛾⤖ᬗ᪉఩ゎᯒ䜢⾜䛳䛯䠊ᖹᆒ䝅䝳䝭䝑䝖ᅉᏊ䛸 5&3 ຍᕤᅇᩘ䛾㛵ಀ䜢 )LJ 䛻♧䛩䠊ᖹᆒ䝅䝳䝭䝑䝖ᅉᏊ䛿 5&3 ຍᕤᅇᩘ䛾ቑຍ

<LHOGVWUHVV䃢\03D䛻䛸䜒䛺䛳䛶ቑ኱䛧䛶䛔䜛䠊ᖹᆒ䝅䝳䝭䝑䝖ᅉᏊ䛜኱䛝䛟䛺䜛䜋䛹䠈ᘬᙇ᪉ྥ䛻ᑐ䛧䛶ᗏ㠃䛜 㼻䜢ᡂ䛩⤖ᬗ䛾๭ྜ䛜ቑ䛘䜛䛣䛸䛸䛺䜚䠈㓄ྥᛶ䛾⦆࿴䛜ᐃ㔞ⓗ䛻ホ౯䛷䛝䛯䠊ᖹᆒ䝅䝳䝭䝑䝖ᅉᏊ䛾ቑศ䛿 E ᩿㠃䛷䛿  䛷䛒䜛䛾䛻ᑐ䛧䛶 E ᩿㠃䛷䛿 䛷䛒䜚䠈E ᩿㠃䛾䜋䛖䛜 5&3 ຍᕤ䛻ᑐ䛧䛶䝅䝳䝭䝑䝖ᅉᏊቑຍ㔞䛜኱䛝䛟䠈E ᩿㠃䛸 E ᩿㠃䛾ᖹᆒ䝅䝳䝭䝑䝖ᅉᏊ䛾

0HDQ6FKPLG IDFWRURIEDVDOVOLSᕪ䛿ῶᑡ䛩䜛ഴྥ䛜☜ㄆ䛥䜜䛯䠊
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)LJ$QLVRWURS\RI\LHOGVWUHVVLQXVLQJKRWH[WUXGHG$=%
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  5&3 ຍᕤ⢊య䜢⇕ฎ⌮䛧䛯㝿䠈㟼ⓗ෌⤖ᬗ䛻䜘䜚ᚤ⣽䛺➼㍈⢏䛜ᙧᡂ䛥䜜䜛䛜䠈⤖ᬗ⢏䛾㢧ⴭ䛺⢒኱໬䛿⏕䛨䛺䛛䛳䛯䠊䛣䜜䛿 䡚QP ⛬ᗘ䛾 $O0Q ᚤ⢏Ꮚ䛾 SLQQLQJ ຠ

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1XPEHURIF\FOHVLQ5&31ᯝ䛻㉳ᅉ䛧䛶䛚䜚䠈⤖ᬗ⢏䛾⇕Ᏻᐃᛶ䜢ྥୖ䛷䛝䜛䛣䛸䛜᫂䜙䛛䛸䛺䛳䛯䠊

)LJ 'HSHQGHQFH RI PHDQ 6FKPLG IDFWRU RI EDVDO VOLS RQ
QXPEHURIF\FOHVLQ5&3 H[WUXGLQJWHPSHUDWXUH䉝   ྠ୍ᢲฟ㏿ᗘ䛾䜒䛸䛷䛿䠈ᢲฟẚ䛾ቑ኱䛻䜘䛳䛶⣲ᮦ䛾୰ኸෆ㒊䜎䛷ᆒ୍䞉ᚤ⣽䛺ືⓗ෌⤖ᬗ⤌⧊䜢ᙧᡂ䛷䛝䛣䛸䠈䜎䛯䠈䛔䛪䜜䛾ᢲฟẚ䛻䛚䛔䛶䜒⤌⧊䛾ᚤ⣽໬䛜䛥䜙䛻㐍⾜ ᶵᲔⓗ≉ᛶ䛾㠃ෆ␗᪉ᛶ

䛧䠈㓄ྥᛶ⦆࿴䜢☜ㄆ䛧䛯䠊

)LJ 䛻♧䛩ᘬᙇ⪏ຊ䠄<6䠅䛻䛴䛔䛶䠈ཎᩱ⢊ᮎ䠄1 䠅䛷䛿ᢲ  5&3 ຍᕤᅇᩘ䛾ቑຍ䛻క䛔䠈ᢲฟ᪉ྥ䛻ᑐ䛩䜛䛔䛪䜜䛾ฟ᪉ྥ䛻ᑐ䛧䛶 㼻䛷᭱䜒ᑠ䛥䛟䃢\ 03D 䛷䛒䜚䠈ゅᗘ䛜኱᩿㠃䛻䛚䛔䛶䜒 ,PD[ ್䛜ῶᑡ䛩䜛䛸ඹ䛻ᖹᆒ䝅䝳䝭䝑䝖ᅉ䛝䛟䛺䜛䛻䛴䜜ቑ኱䛧䠈㼻䛷᭱኱್䃢\ 03D 䜢䛸䜛䠊5&3Ꮚ䛜ቑຍ䛧䠈㓄ྥᛶ䛾⦆࿴䜢☜ㄆ䛧䛯䠊5&3 ຍᕤᅇᩘቑຍ

ຍᕤᅇᩘ䛾ቑຍ䛻క䛔 㼻᪉ྥ䛷䛿⣙ 03D 䛾ቑຍ䛷䛒䛳䛯䛻క䛔䠈ᢲฟ᪉ྥ䠄䃗 㼻䠅䛻䛚䛡䜛ᘬᙇᙉ䛥䛚䜘䜃⪏ຊ䛿䛾䛻ᑐ䛧䠈㼻᪉ྥ䛷䛿 03D䠈㼻᪉ྥ䛷䛿 03D 䛾ቑຍ⣙ ቑຍ䛧ഹ䛛䛻ఙ䜃䛿ῶᑡ䛧䛯䠊≉䛻 䉝ᢲฟᮦ䛻䛜☜ㄆ䛥䜜䛯䠊䛴䜎䜚䠈ฟⓎཎᩱ 1  䜢⏝䛔䛯ሙྜ䠈ᢲฟᮦ䛾䛚䛔䛶䛿䠈5&3 ຍᕤ䛻䜘䜚⪏ຊ䛚䜘䜃ఙ䜃䛾㠃ෆ␗᪉ᛶ䛜⪏ຊ䛿ᢲฟ᪉ྥ䛻ᑐ䛩䜛ゅᗘ䛻䛴䛔䛶䛾ᕪ䛜䜏䜙䜜䠈㠃ෆ␗᪉ᛶ䜢⏕䛨䛶䛔䜛䠊䛣䜜䛻ᑐ䛧䛶 5&3 ຍᕤᅇᩘቑຍ䛻క䛔䠈⪏ຊ㢧ⴭ䛻పῶ䛧䠈䃗 㼻䛸 㼻䛻䛚䛔䛶ᕪ␗䛜ゎᾘ䛥䜜䛯䠊䠄ඹྠ◊✲ศ㔝䠖」ྜ໬ᶵᵓᏛศ㔝䠅㻌− 107 −

ࣘࣅ࢟ࢱࢫඖ⣲࡟ࡼࡗ࡚ᙉ໬ࡉࢀࡓ⣧ࢳࢱࣥࡢస〇࡜ࡑࡢ≉ᛶ᪥ᮏ኱Ꮫ ⏕⏘ᕤᏛ㒊  ஂಖ⏣ ṇᗈ

1. ⥴ゝ
ࢳࢱࣥ (Ti) ྜ㔠ࡣ㸪㧗ẚᙉᗘ㸪㧗⪏㣗ᛶ࡞࡝ඃࢀࡓ≉ᛶࢆ᭷ࡍࡿࡇ࡜࠿ࡽྛศ㔝࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪〇㐀ࢥࢫࢺࡀ㧗౯࡞ࡓࡵ࡟ᗈࡃ⏝࠸ࡽࢀࡿ࡟ࡣ⮳ࡗ࡚࠸࡞࠸㸬ࡑࡢཎᅉ࡜ࡋ࡚ࡣ㸪V㸪Mo㸪Zr ࡞࡝ࡢᣢ⥆ⓗ࡟౪⤥ࡀ୙Ᏻどࡉࢀ࡚࠸ࡿࣞ࢔࣓ࢱࣝࢆከࡃ౑⏝ࡋ࡚࠸ࡿࡇ࡜㸪⇕ఏᑟ⋡ࡀప࠸ࡓࡵ࡟ᶵᲔຍᕤᛶ࡟ຎࡿࡇ࡜࡞࡝ࡀᣲࡆࡽࢀࡿ㸬ࡇࢀࡽࡢᑐฎ
ἲ࡜ࡋ࡚ࡣ㸪᪤Ꮡࡢྜ㔠ඖ⣲ࡢ௦᭰࡜ࡋ࡚㈨※ࡀ㇏ᐩ࡟Ꮡᅾࡍ
ࡿඖ⣲ࡸ౵ධᆺඖ⣲ࡢ฼⏝㸪ᚋຍᕤࢆ࡯࡜ࢇ࡝ᚲせ࡜ࡋ࡞࠸⢊ᮎ෬㔠 (Powder Metallurgy㸹P/M) ἲࢆ⏝࠸ࡓࢽ࢔ࢿࢵࢺࢩ࢙
࢖ࣉຍᕤ࡛㒊ရ➼ࢆస〇ࡍࡿࡇ࡜࡞࡝ࡀ࠶ࡆࡽࢀࡿ㸬ᮏ◊✲࡛ࡣ㸪MM ἲ࡜ SPS ἲࢆ㐺⏝ࡋ㸪ࣘࣅ࢟ࢱࢫඖ⣲ࢆ⏝࠸ࡓపࢥࢫࢺ㧗ᙉᗘ⣧ࢳࢱࣥࡢ๰〇ࢆ⢊ᮎ෬㔠ἲࡢほⅬ࠿ࡽヨࡳࡓ㸬MM ฎ⌮᫬㛫ࡸ PCA ῧຍ㔞ࢆኚ໬ࡉࡏ㸪MM ⢊ᮎ࠾ࡼࡧ SPS ᮦࡢᵓᡂ┦࠾ࡼࡧ◳ᗘ࡟ཬࡰࡍࡇࢀࡽ
ࡢࣃ࣓࣮ࣛࢱࡢᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿ㸬ࡍ࡞ࢃࡕ㸪⣧ࢳࢱࣥ⢊ᮎࢆྜ㔠ඖ⣲ࢆ⏝࠸ࡎ࡟ᙉ໬ࡍࡿ┠ⓗ࡛㸪ẕᮦ⢊ᮎࢆᚤ⣽࡟⢊○ࡉࡏ࡞ࡀࡽ㸪ᕧ኱࡞ࡦࡎࡳࡢᑟධࡀྍ⬟࡛࠶ࡿ࣓࢝ࢽ࣑࢝ࣝ
ࣜࣥࢢ (Mechanical Milling㸹MM) ἲࢆ㐺⏝ࡋࡓ㸬MM ฎ⌮୰࡟ᐜჾࡸ࣮࣎ࣝ࡜⢊ᮎࡢᅛ╔ࢆ㜵ࡄ┠ⓗ࡛ῧຍࡍࡿ࣑ࣜࣥࢢຓ๣ (Process Control Agent㸹PCA) ࡣ㸪Ᏻ౯࡞ࢫࢸ࢔ࣜࣥ㓟 (CH3(CH2)16COOH) ࢆ⏝࠸ࡓ㸬ࢫࢸ࢔ࣜࣥ㓟ࡣ㸪㓟⣲㸪Ỉ⣲㸪Ⅳ⣲࡞࡝ࡢࣘࣅ࢟ࢱࢫඖ⣲࠿ࡽᵓᡂࡉࢀ࡚࠾ࡾ㸪MM ฎ⌮ࢆ⾜࠺ࡇ࡜࡛㸪ࡇࢀࡽࡢඖ⣲࡜ࢳࢱࣥ⢊ᮎࡀᅛ┦཯ᛂ࡟ࡼࡗ࡚໬ྜ≀┦ࢆ⏕ᡂࡉࡏࡿࡔࡅ
࡛ࡣ࡞ࡃ㸪㐣ศ࡞ࣘࣅ࢟ࢱࢫඖ⣲ࡀ⣧ࢳࢱࣥ࡟ᅛ⁐ࡍࡿࡇ࡜࡛㸪ᶵᲔⓗᛶ㉁ࡢྥୖࡀᮇᚅ࡛ࡁࡿ㸬MM ⢊ᮎࡢᅛ໬ᡂᙧ࡟⏝࠸ࡓᨺ㟁ࣉࣛࢬ࣐↝⤖ (Spark
Plasma Sintering㸹SPS) ἲࡣ㸪ࣉ࣮ࣜ࢝ࢧࢆస〇ࡏࡎ࡟ప㸪࠿ࡘ▷᫬㛫࡛↝⤖ྍ⬟࡛࠶ࡿࡓࡵ㸪〇㐀ᕤ⛬ࢆ▷⦰ࡉࡏ㸪࠿ࡘ MM ฎ⌮࡟ࡼࡗ࡚ᚓࡽࢀࡓ㧗௜ຍ౯್ࢆ᭷ࡍࡿ⢊ᮎࡢ≉ᛶࢆᦆ࡞ࢃࡎ࡟↝⤖࡛ࡁࡿ㸬
2. ᐇ㦂᪉ἲᮏ◊✲࡛⏝࠸ࡓ⣧ࢳࢱࣥ⢊ᮎࡣ⣧ᗘ 99.5 %㸪ᖹᆒ⢊ᮎ⢏Ꮚᚄ
44 ȣm ௨ୗ࡛㸪ࡑࡢ⤌ᡂศᯒ⤖ᯝࢆ Table 1 ࡟♧ࡍ㸬ศᯒ⤖ᯝࡼࡾᮏ◊✲࡛⏝࠸ࡓ⣧ࢳࢱࣥ⢊ᮎ࡟ࡣ㸪JIS 3 ✀┦ᙜࡢ㓟⣲ࡸỈ⣲ࡀྵࡲࢀ࡚࠸ࡿ㸬⣧ࢳࢱࣥ⢊ᮎ 10 g ࠾ࡼࡧᕤල㗰〇࣮࣎ࣝ 70 g ࢆ Ar ࢞ࢫ㞺ᅖẼ୰࡛ᕤල㗰〇ᐜჾ࡟⿦ධࡋࡓ㸬ࡇࡢ᫬㸪PCA ࡜ࡋ࡚ࢫࢸ࢔
ࣜࣥ㓟ࢆ0.25 g㸪
0.50 g ࠾ࡼࡧ1.00 g ⛗㔞ࡋ㸪ᐜჾ࡟⿦ධࡋࡓ㸬ࡇࢀࡽࡢ㔞ࡣࡑࢀࡒࢀ 2.5 mass%㸪5 mass%࠾ࡼࡧ 10 mass%࡟┦ᙜࡍࡿ㸬ࡇࡇ࡛㸪୍⯡ⓗ࡟ PCA ࡢ㐺㔞ࡣ 1~3 mass%⛬ᗘ࡜࡛࠶ࡾ㸪ᮏ◊✲࡛ࡣ 2.5 mass%ࡀࡑࢀ࡟┦ᙜࡍࡿ㸬ࢫࢸ࢔ࣜ

Table 1 Composition of experimentally used andJIS 3 grade Ti powders.
Material

Analyzed Composition
䠄mass%䠅

Experimentally usedpure TiO䠖0.31% N䠖0.012%
H䠖0.016% Fe䠖0.028% C䠖0.009%

JIS 3 Grade(max)

O䠖0.35% N䠖0.05%
H䠖0.0125% Fe䠖0.25% C䠖0.1%

ࣥ㓟࡟ྵࡲࢀࡿྛࣘࣅ࢟ࢱࢫඖ⣲ࡢ⤌ᡂࢆ Table 2 ࡟♧ࡍ㸬
0.25 g ࡢࢫࢸ࢔ࣜࣥ㓟୰࡟ࡣ㸪JIS 3 ✀┦ᙜࡢ㓟⣲㸪20 ಸ⛬ᗘࡢỈ⣲ࡸⅣ⣲ࢆྵࢇ࡛࠸ࡿ㸬MM ฎ⌮࡟ࡣ᣺ືᆺ࣮࣑࣎ࣝࣝࢆ౑⏝ࡋ㸪ฎ⌮᫬㛫ࡣ 4 h㸪
8 h ࡢ 2 ᮲௳࡜ࡋࡓ㸬ᚓࡽࢀࡓ MM ⢊ᮎࡣ㸪X ⥺ᅇᢡ㸪࣐࢖ࢡࣟࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂 (Ⲵ㔜 10 g㸪ಖᣢ᫬㛫 15 s) 㸪㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾 (SEM) ほᐹ࡟ࡼࡾホ౯ࡋࡓ㸬
SPS ⿦⨨ࢆ⏝࠸࡚㸪ᚓࡽࢀࡓ MM ⢊ᮎࢆᅛ໬ᡂᙧࡋࡓ㸬ᡂᙧࡣȭ 20 ࡢ㯮㖄ࢲ࢖ࢫࢆ⏝࠸࡚㸪᪼ ㏿ᗘ 1 K/s ࡛ 1073 K ࡲ࡛᪼ ᚋ㸪ຍᅽຊ 49 MPa ࡛ 1.8 ks ಖᣢࡋࡓ㸬స〇ࡋࡓ SPS
ᮦࡣ㸪X ⥺ᅇᢡ㸪ࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂 (Ⲵ㔜 1 kg㸪ಖᣢ᫬㛫 20s) 㸪࢔࣓ࣝ࢟ࢹࢫἲ࡟ࡼࡿᐦᗘ ᐃ㸪ගᏛ㢧ᚤ㙾ほᐹ࡟ࡼࡾホ౯ࡋࡓ㸬
3. ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ
Fig. 1 ࡟ࢫࢸ࢔ࣜࣥ㓟ࢆ 0.25 g㸪0.50 g ῧຍࡋ㸪4 h ࠾ࡼࡧ 8h MM ฎ⌮ࡋࡓ⢊ᮎ࡜ࡑࢀࡽࡢ⢊ᮎ࠿ࡽస〇ࡋࡓ SPS ᮦࡢ◳
ࡉࡢẚ㍑࠾ࡼࡧ SPS ᮦࡢᐦᗘࢆ♧ࡍ㸬MM ฎ⌮ࢆࡋ࡚࠸࡞࠸
≧ែࡢ⣧ࢳࢱࣥ⢊ᮎࡢ◳ࡉࡣ 189 HV ࢆ♧ࡋࡓࡢ࡟ᑐࡋ㸪ࢫࢸ࢔ࣜࣥ㓟ࢆ 0.25 g ῧຍࡋ㸪MM 8 h ฎ⌮ࡋࡓ⢊ᮎ࡛ࡣ⢊ᮎ୰᭱ࡶ㧗࠸◳ࡉ࡛࠶ࡿ 513 HV ࢆ♧ࡋࡓ㸬⢊ᮎࡢ≧ែ࡛ࡣ MM ฎ⌮᫬㛫ࡀྠࡌ࡛࠶ࢀࡤ㸪ࢫࢸ࢔ࣜࣥ㓟ࡢῧຍ㔞ࡀᑡ࡞࠸᪉ࡀ㧗࠸್ࢆ♧ࡋࡓ㸬
SPS ᮦ࡛ࡣ㸪ྠMM ฎ⌮᫬㛫࡛࠶ࢀࡤࢫࢸ࢔ࣜࣥ㓟ࢆ0.50 gῧຍࡋࡓ᪉ࡀ 0.25 g ῧຍࡋࡓ࡜ࡁࡼࡾࡶ㧗࠸್ࢆ♧ࡋࡓ㸬ࡲࡓ㸪
SPS ᮦ࡛ࡣ㸪MM ฎ⌮ࡋࡓ⢊ᮎ࠿ࡽస〇ࡋࡓሙྜ㸪඲࡚ࡢ᮲௳
࡛ MM ฎ⌮ࢆࡋ࡚࠸࡞࠸⢊ᮎ࠿ࡽస〇ࡋࡓ SPS ᮦ (268 HV)ࡼࡾࡶ㧗࠸್ࢆ♧ࡋࡓ㸬ࡉࡽ࡟㸪MM ฎ⌮࡟ࡼࡗ࡚స〇ࡉࢀࡓ⢊ᮎࢆ SPS ἲ࡛ᅛ໬ᡂᙧࡍࡿࡇ࡜࡛㸪඲࡚ࡢ᮲௳࡛ SPS ᮦࡢ᪉ࡀ MM ⢊ᮎࡼࡾ㧗࠸್ࢆ♧ࡋࡓ㸬ࡇࢀࡽࡢ⤖ᯝ࠿ࡽ SPS ⿦⨨ࢆ⏝࠸ࡓᅛ໬ᡂᙧἲࡣ㸪⢊ᮎࡢ≉ᛶࢆᦆ࡞࠺࡝ࡇࢁ࠿㸪㏫࡟
ྥୖࡉࡏࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬ࡉࡽ࡟㸪ྛ
SPS ᮦࡢ┦ᑐᐦᗘࡣ 100 㸣࡟㏆࠸್ࢆ♧ࡋࡓࡇ࡜࠿ࡽ㸪ᮏ◊✲࡛タᐃࡋࡓ↝⤖᮲௳ࡀ㐺ษࡔࡗࡓࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿ㸬

Table 2 Starting composition for mechanical milling of pure Ti with the addition of stearic acid.
Composition

Added stearic acid(g)(mass%)(at.%)

0.25

Ti-1.86 C-0.31 H-0.27 O

Ti-9.82 C-1.64 H-1.45 O

0.50
1.00

Ti-3.62 C-0.60 H-0.54 O
Ti-6.91 C-1.15 H-1.02 O

Ti-17.39 C-2.90 H-2.58 O
Ti-28.31 C-4.71 H-4.19 O− 108 −

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㻤㻜㻜㻔㻥㻥㻚㻟㻕

㻔㻥㻥㻚㻢㻕

㻢㻜㻜㻠㻜㻜㻰㼕㼒㼒㼞㼍㼏㼠㼕㼛㼚㻌㼜㼑㼍㼗㻌㼏㼛㼞㼞㼑㼟㼜㼛㼚㼐㼕㼚㼓㻌㼠㼛㻌䃐㻙㼀㼕㻌㼙㼑㼍㼟㼡㼞㼑㼐㼎㼑㼠㼣㼑㼑㼚㻌㻢㻣㻌㼍㼚㼐㻌㻣㻞 㼐㼑㼓㼞㼑㼑㼟㻌㼒㼛㼞㻌㻿㻼㻿 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㻌㼙㼑㼏㼔㼍㼚㼕㼏㼍㼘㼘㼥㻌㼙㼕㼘㼘㼑㼐㻌㼜㼡㼞㼑㻌㼀㼕㻌㼜㼛㼣㼐㼑㼞㻌㻵㼚㼠㼑㼚㼟㼕㼠㼥䠄㼍㼞㼎㻚㻌㼡㼚㼕㼠㼟䠅㼂㼕㼏㼗㼑㼞㼟㻌㼔㼍㼞㼐㼚㼑㼟㼟㻘㻌㻴㼂㻌㻜㻚㻜㻝㻘㻝㻝㻞㻜㻜㻔㻥㻣㻚㻜㻕㻞㻜㻜㻜㻜㼀㼔㼑㼛㼞㼑㼠㼕㼏㼍㼘㻌㼢㼍㼘㼡㼑㻶㻯㻼㻰㻿 㻦㻌㻠㻠㻙㻝㻞㻥㻠㻹㻹㻤䡄 㻼㻯㻭㻜㻚㻡㻜㼓㼀㼕㻙㻢㻭㼘㻙㻠㼂㻹㻹㻠䡄 㻼㻯㻭㻜㻚㻡㻜㼓㻶㻵㻿㻌㻟㻌㼓㼞㼍㼐㼑㻺㼛㼚㼑㻌㻹㻹

㻠㻹㼑㼏㼔㼍㼚㼕㼏㼍㼘㻌㼙㼕㼘㼘㼕㼚㼓㻌㼠㼕㼙㼑㻘㻌㼠㻌㻛㼔㻤㻰㼕㼒㼒㼞㼍㼏㼠㼕㼛㼚㻌㼍㼚㼓㼘㼑㻘㻞T 䠄㼐㼑㼓㻕㻌

Fig. 1 Comparison of hardness between MMed
powders and SPS materials together with relative
density of the pure Ti SPS materials.

Fig. 2
X-ray diffraction patterns of as-SPS
materials produced by different mechanical milling
time with the addition of 0.50 g PCA.

ࢫࢸ࢔ࣜࣥ㓟ࡢῧຍ㔞࠾ࡼࡧ MM ฎ⌮᫬㛫ࢆኚ໬ࡉࡏࡓ᫬
ࡢࢳࢱࣥ⢊ᮎ࠾ࡼࡧ㸪ࡑࢀࡽࡢ⢊ᮎ࠿ࡽస〇ࡋࡓ SPS ᮦࡢᅛ┦཯ᛂ┦ࢆࡲ࡜ࡵࡓ⤖ᯝࢆ Table 3 ࡟♧ࡍ㸬⢊ᮎࡢ≧ែ࡛ࡣ㸪ࢫࢸ࢔ࣜࣥ㓟ࢆῧຍࡋ MM ฎ⌮ࢆ᪋ࡍࡇ࡜࡛㸪ࡍ࡭࡚ࡢ᮲௳
࡛㸪Ș-ࢳࢱࣥࡢᅇᢡࣆ࣮ࢡ࡟ຍ࠼㸪TiH2 ࡢᅇᢡࣆ࣮ࢡࡀྠᐃ
ࡉࢀࡓ㸬ࡇࢀࡣ㸪MM ฎ⌮୰࡟⏕ࡌࡿ࣮࣎ࣝྠኈࡢ⾪✺࡟ࡼࡾࢳࢱࣥ⢊ᮎ࡜ࢫࢸ࢔ࣜࣥ㓟୰ࡢỈ⣲࡟ᶵᲔⓗ࢚ࢿࣝࢠ࣮ࡀ௜
୚ࡉࢀࡓࡓࡵ࡟཯ᛂࡀಁ㐍ࡉࢀ⏕ᡂࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪
Ti-H ᖹ⾮≧ែᅗ࡟ࡼࡿ࡜㸪Ỉ⣲ࡢ᭱኱ᅛ⁐㔞ࡣ 0.15 mass%࡛
࠶ࡾ㸪Table 2 ࡟♧ࡋࡓỈ⣲㔞ࡣ㸪ࡇࡢ㔞ࢆࡣࡿ࠿࡟㉺࠼࡚࠸ࡿࡓࡵ࡟໬ྜ≀ࡀ⏕ᡂࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬
SPS ᮦ࡛ࡣ㸪Ș-ࢳࢱࣥࡢᅇᢡࣆ࣮ࢡ࡟ຍ࠼㸪TiC ࡢᅇᢡࣆ࣮ࢡࡀྠᐃࡉࢀࡓ㸬ࡇࢀࡣ㸪ࢫࢸ࢔ࣜࣥ㓟࡟ྵࡲࢀࡿⅣ⣲࡜⣧ࢳࢱࣥࡀ MM ฎ⌮୰࡟ᆒ୍࡟ΰྜࡉࢀ㸪SPS ↝⤖୰ࡢຍ⇕࡟ࡼࡗ࡚ࡇࢀࡽࡀᣑᩓࡋ㸪ᅛ┦཯ᛂࡋ࡚⏕ᡂࡋࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬Ⅳ⣲ࡶ᭱኱ᅛ⁐㔞ࡀ 0.2 mass%࡛࠶ࡾ㸪Ỉ⣲࡜ྠᵝ࡟㸪
Table 2 ࡟♧ࡋࡓⅣ⣲㔞ࡀ㸪ࡇࡢ㔞ࢆࡣࡿ࠿࡟㉺࠼࡚࠸ࡿࡓࡵ

ࣆ࣮ࢡࢆ Fig. 2 ࡟♧ࡍ㸬పゅᗘഃ࡟᭱ࡶ኱ࡁࡃࢩࣇࢺࡋࡓࡢࡣ
MM 8 h ฎ⌮ࡋࡓ SPS ᮦ࡛㸪ᖹᆒ 2ȟ=0.96r⛬ᗘࢩࣇࢺࡋ࡚
࠸ࡓ㸬ࡲࡓ㸪MM ฎ⌮᫬㛫ࢆ 4 h ୍ᐃ࡜ࡋࡓሙྜࡣ㸪ࢫࢸ࢔ࣜࣥ㓟ࡢῧຍ㔞ࡀ᭱ࡶከ࠸ 1.00 g ῧຍࡋࡓ᫬࡟ᖹᆒ 2ȟ=0.65r⛬ᗘ࡜᭱ࡶ኱ࡁࡃࢩࣇࢺࡋࡓ㸬Ș-ࢳࢱࣥࡢᅇᢡࣆ࣮ࢡࡀపゅᗘഃ࡟ࢩࣇࢺࡋࡓࡢࡣ㸪ࢫࢸ࢔ࣜࣥ㓟ࢆᵓᡂࡍࡿⅣ⣲㸪Ỉ⣲㸪㓟⣲ࡀ MM ฎ⌮୰࡟⢊ᮎ୰࡟ᆒ୍࡟ศᩓࡋ㸪SPS ↝⤖୰ࡢຍ⇕࡟ࡼࡗ࡚ࡇࢀࡽࡀᣑᩓࡋ㸪ᅛ⁐ࡋࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬≉࡟ࢳࢱࣥ୰࡬ࡢ㓟⣲ࡢᅛ⁐ࡣᐊ ࡛ 3.5 mass%࡜ሗ࿌ࡉࢀ࡚࠾ࡾ 2)㸪
Table 2 ࡟♧ࡋࡓ㓟⣲ࡣ඲࡚ᅛ⁐ࡋࡓࡶࡢ࡜ุᐃࡋࡓ㸬TiO2 ࡞࡝ࡢ㓟໬≀ࡀ⏕ᡂࡋ࡚࠸࡞࠸ࡇ࡜࠿ࡽࡶపゅᗘഃ࡬ࡢࢩࣇࢺ
ࡣ㓟⣲ࡢᅛ⁐ࡀ኱ࡁࡃᐤ୚ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬௨ୖࡢࡇ࡜࠿ࡽ㸪ࢫࢸ࢔ࣜࣥ㓟୰ࡢࣘࣅ࢟ࢱࢫඖ⣲࡟ࡼࡗ࡚ᙉ໬ࡉࢀࡓ⣧ࢳࢱࣥࡣ㸪ḟ࡟♧ࡍᅛ┦཯ᛂ⤒㊰ࢆࡓ࡝ࡿ㸬⣧ࢳࢱࣥ࡟ PCA ࡜ࡋ࡚ࢫࢸ࢔ࣜࣥ㓟ࢆῧຍࡋ㸪MM ฎ⌮ࢆࡍࡿ࡜㓟⣲㸪Ỉ⣲㸪Ⅳ⣲ࢆᅛ⁐ࡋࡓȘ-ࢳࢱࣥ࡜ TiH2 ࡀ⏕ᡂࡋ㸪SPS ᮦ࡛ࡣ㓟⣲㸪Ỉ⣲㸪Ⅳ⣲ࢆᅛ⁐ࡋࡓȘ-ࢳࢱࣥ࡜ TiC
ࡀ⏕ᡂࡋࡓ㸬ࡲࡓ㸪ࢫࢸ࢔ࣜࣥ㓟ࢆ 0.50g ῧຍࡋ㸪MM 8 hฎ⌮ࡋࡓሙྜࡣ㸪⢊ᮎ࠾ࡼࡧ SPS ᮦ࡟࠾࠸࡚㸪TiN ࡶ⏕ᡂࡋࡓ㸬

Table 3 Change of constituent phases between
MMed powders and SPS materials together withmeasured density of the pure Ti SPS materials.
Addition of
PCA (g)MM
Powder

0.25

48

ǂ -Ti, TiH 2

0.50

ǂ -Ti, TiH 2

1.00

ǂ -Ti, TiH 2

0.25
SPS
Material

MM Time (h)ǂ -Ti, TiH2, TiN

ǂ -Ti, TiC

0.50ǂ -Ti, TiC

1.00

ǂ -Ti, TiC

ǂ -Ti, TiC, TiN࡟໬ྜ≀ࡀ⏕ᡂࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ࢫࢸ࢔ࣜࣥ㓟ࢆ 0.50 g ῧຍࡋ㸪MM 8 h ฎ⌮ࡋࡓ⢊ᮎ
࠾ࡼࡧ SPS ᮦ࡛ࡣ㸪ࡑࢀࡽ࡟ຍ࠼࡚ TiN ࡢᅇᢡࣆ࣮ࢡࡶྠᐃ
ࡉࢀࡓ㸬ࡇࢀࡣ㸪MM 8 h ฎ⌮ࡋࡓࡇ࡜࡛⢊ᮎࡣ㠀ᖖ࡟άᛶ࡞
≧ែ࡟࡞ࡾ㸪X ⥺ᅇᢡࡢ㝿㸪✵Ẽ୰ࡢ❅⣲࡜ᅛ┦཯ᛂࡋࡓࡓࡵ
⏕ᡂࡋࡓ࡜᥎ᐹࡋࡓ㸬Fig. 1 ࡼࡾ᭱ࡶ㧗࠸ 1253 HV ࢆ♧ࡋࡓ
SPS ᮦ࡛ࡣ㸪2 ࡘࡢ␗࡞ࡿᙉ໬┦⢏Ꮚࡢศᩓᙉ໬ࡀᐤ୚ࡋࡓ࡜
⪃࠼ࡽࢀࡿ㸬SPS ᮦࡢ X ⥺ᅇᢡ⤖ᯝࡼࡾࢫࢸ࢔ࣜࣥ㓟ࢆῧຍࡋ㸪MM ฎ⌮ࡋࡓ⢊ᮎࢆᅛ໬ᡂᙧࡋࡓ SPS ᮦ࡛ࡣ㸪Ș-ࢳࢱࣥࡢᅇᢡࣆ࣮ࢡࡀపゅᗘഃ࡬ࢩࣇࢺࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬୍౛࡜ࡋ࡚㸪ࢫࢸ࢔ࣜࣥ㓟ࢆ0.50 g ῧຍࡋࡓSPS ᮦࡢ2ȟ=70r௜㏆ࡢᅇᢡ

4. ⤖ゝ
ࣘࣅ࢟ࢱࢫඖ⣲࡛ᵓᡂࡉࢀ࡚࠸ࡿᏳ౯࡞ࢫࢸ࢔ࣜࣥ㓟ࢆ฼⏝ࡋ࡚㸪ࡑࡢῧຍ㔞ࡸ MM ฎ⌮᫬㛫ࢆኚ໬ࡉࡏపࢥࢫࢺ㧗ᙉᗘ⣧ࢳࢱࣥࡢ๰〇ࢆヨࡳࡓ㸬ᚓࡽࢀࡓ⢊ᮎࢆ SPS ⿦⨨࡛ᅛ໬ᡂᙧࡋࡓ㸬స〇ࡋࡓ MM ⢊ᮎ࡜ SPS ᮦࡢ≉ᛶࢆホ౯ࡋ㸪௨ୗࡢ⤖ㄽࢆᚓࡓ㸬⣧ࢳࢱࣥ⢊ᮎ࡟ࢫࢸ࢔ࣜࣥ㓟ࢆῧຍࡋ㸪MM ฎ⌮ࡍࡿ࡜㸪ᅛ┦཯ᛂ࡟ࡼࡗ࡚ TiH2 ࡀ⏕ᡂࡋ㸪ࡑࢀࡽࡢ⢊ᮎࢆ SPS ἲ࡛ᅛ໬ᡂᙧࡍࡿ࡜㸪TiC ࡀ⏕ᡂࡋࡓ㸬ࡲࡓ㸪ࢫࢸ࢔ࣜࣥ㓟ࢆ 0.50 g ῧຍࡋ㸪MM ฎ⌮ 8 h ⾜࠺࡜㸪TiN ࡶ⏕ᡂࡋ㸪SPS ᮦ࡛ࡣⴭࡋ
࠸㧗◳ᗘࢆ♧ࡋࡓ㸬ࡇࡢ㧗◳ᗘࡣ㸪⏕ᡂࡋࡓᙉ໬┦࡟ࡼࡿศᩓ
ᙉ໬ࡢᐤ୚࡟ຍ࠼㸪ࢫࢸ࢔ࣜࣥ㓟ࢆᵓᡂࡍࡿ㓟⣲㸪Ỉ⣲㸪Ⅳ⣲
࡟ࡼࡿᅛ⁐ᙉ໬ࡀྠ᫬࡟ᐤ୚ࡋࡓࡇ࡜࡟ࡼࡿ㸬MM ฎ⌮୰ࡢᶵᲔⓗ࢚ࢿࣝࢠ࣮ࡢ௜୚࡜ SPS ୰ࡢᅛ┦཯ᛂࢆ⤌ࡳྜࢃࡏࡓࣉࣟࢭࢫ࡟ࡼࡗ࡚㸪ᙉ໬┦ࢆ⏝࠸ࡎ࡟㧗◳ᗘ⣧ࢳࢱࣥࢆ๰〇࡛ࡁࡿྍ⬟ࡀ♧ࡉࢀࡓ㸬㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 109 −

ࣂ࢖࣐࢜ࢫ࢝ࢫࢣ࣮ࢻࢆ฼⏝ࡋࡓ࢔ࣔࣝࣇ࢓ࢫࢩࣜ࢝๰〇ࣉࣟࢭࢫ
㸫࢔ࣔࣝࣇ࢓ࢫࢩࣜ࢝ࡢࢥࣥࢡ࣮ࣜࢺᮦᩱ࡜ࡋ࡚ࡢ᭷ຠά⏝㸫ᯇỤᕤᴗ㧗➼ᑓ㛛Ꮫᰯ ⎔ቃ㺃ᘓタᕤᏛ⛉  㧗⏣㱟୍㸯㸬ࡣࡌࡵ࡟
㏆ᖺ㸪⢄Ẇࢆ㐺ษ࡞㓟Ὑίฎ⌮࡜⇞↝᪉ἲ࡟ࡼࡾ㧗⣧ᗘࡢ㠀ᬗ㉁ࢩ࡛ࣜ࢝࠶ࡿࣂ࢖࢜ࢩࣜ࢝ࡀ〇㐀࡛ࡁࡿࡇ࡜
࡟╔┠ࡋ㸪ࡇࡢ⢊యࡣ㉁㔞࡛ ௨ୖࡢ஧㓟໬ࢣ࢖⣲ࢆྵࢇ࡛࠾ࡾ㸪࢔ࣝ࢝ࣜ⁐ᾮ࡛ྍ⁐ᛶ࡜࡞ࡾ㸪࣏ࢰࣛࣥ཯
ᛂࡀᮇᚅࡉࢀࡿࡇ࡜࠿ࡽࢥࣥࢡ࣮ࣜࢺ⏝ΰ࿴ᮦ࡜ࡋ࡚ࡢ฼⏝ࡀᮇᚅࡉࢀࡿࠋ㔞㸪ရ㉁ࡀඹ࡟Ᏻᐃࡋࡓࣂ࢖࢜ࢩࣜ
࢝ࢆࢭ࣓ࣥࢺΰ࿴ᮦ࡜ࡋ࡚฼⏝ࡍࡿࡇ࡜࡛㸪ࢥࣥࢡ࣮ࣜࢺࡢᙉᗘቑຍ࡟ࡼࡿࢭ࣓ࣥࢺ౑⏝㔞ࡢ๐ῶ࡜ΰ࿴ᮦࡢῧ
ຍ࡟ࡼࡿࢭ࣓ࣥࢺ౑⏝㔞ࡢ┦ᑐⓗྵ᭷ẚ⋡ࡢῶᑡ࡜࠸ࡗࡓ┦஌ຠᯝ࡟ࡼࡿࢥࣥࢡ࣮ࣜࢺᵓ㐀≀࡟࠾ࡅࡿࢭ࣓ࣥࢺ
ࡢࢺ࣮ࢱࣝ౑⏝㔞ࢆ⏬ᮇⓗ࡟๐ῶࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋᮏ◊✲࡛ࡣ㸪ᖹᆒ⢏Ꮚᚄࡀ ȝP ࡜ ȝP ࡜␗࡞ࡿ㸰✀㢮ࡢࣂ࢖࢜ࢩࣜ࢝ࢆ‽ഛࡋ㸪ࢥࣥࢡ࣮ࣜࢺᙉᗘ㸪཰⦰ᛶ㸪✵Ẽ㐃⾜ᛶ㸪ὶືᛶ࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚ㄪᰝࢆ⾜ࡗࡓࠋ㸰㸬ᐇ㦂ᴫせ ᙉᗘࡢ≉ᛶࢆㄪᰝࡍࡿࡓࡵ࡟ࣂ࢖࢜ࢩࣜ࢝ࢆΰ࿴ᮦ࡜ࡋࡓࣔࣝࢱࣝࢆ⏝࠸࡚ࣇ್࣮ࣟ㸪✵Ẽ㔞㸪᭤ࡆᙉᗘ㸪ᅽ⦰ᙉᗘ㸪཰⦰ᛶ࡟ࡘ࠸࡚ẚ㍑᳨ウࢆ⾜ࡗࡓࠋᙉᗘヨ㦂࡟ࡘ࠸࡚ࡣᮦ㱋  ᪥㸪 ᪥㸪 ᪥㸪 ᪥ࡢ  Ỉ‽࡛ᶆ‽Ỉ୰㣴⏕ࡋࡓࡶࡢࢆ⏝࠸ࡓࠋ཰⦰ヨ㦂࡟ࡘ࠸࡚ࡣࠊࣔࣝࢱࣝࢥࣥࣃ࣮ࣞࢱʊ࡟ࡼࡾసᡂࡋࡓ⩣᪥࠿ࡽ཰⦰ࡀᏳᐃࡍ
ࡿࡲ࡛ẖ᪥ ᐃࢆ⾜ࡗࡓࠋ㓄ྜࡣỈࢭ࣓ࣥࢺẚ 㸪ࢭ࣓ࣥࢺ㦵ᮦẚ  ࡢ㓄ྜ࡛స〇ࡋ㸪ΰ࿴ᮦࡢΰධ⋡ࡣ࠸ࡎࢀࡶࢭ࣓ࣥࢺࡢయ✚ෆ๭ࡾ࡛ 㸪㸪㸪ࡢ  Ỉ‽࡜ࡋࡓࠋὶືᛶࢆ୍ᐃ࡟ࡍࡿࡓࡵ࡟ΰ࿴๣࡜ࡋ
࡚㧗ᛶ⬟ῶỈ๣࡜ᾘἻ๣ࢆ౑⏝ࡋࡓࡶࡢ࡜㸪౑⏝ࡋ࡚࠸ࡿࡶࡢ࡟ࡘ࠸࡚‽ഛࡋࡓࠋ㧗ᛶ⬟ῶỈ๣㔞࡜ᾘἻ๣㔞ࡣヨࡋ⦎ࡾࡢ⤖ᯝࡼࡾỴᐃࡋࡓࠋࡲࡓ㸪⢏ᗘࡢ␗࡞ࡿ ȝP ࡜ ȝP ࣂ࢖࢜ࢩࣜ࢝࡟ࡣྠ㔞ࡢ㧗ᛶ⬟ῶỈ๣࡜ᾘἻ๣
ࢆ౑⏝ࡋࡓࠋᙉᗘᛶ⬟㸪཰⦰ᛶ࡟ࡘ࠸࡚ࡣΰ࿴๣ࢆ౑⏝ࡋ㸪✵Ẽ㔞㸪ὶືᛶࢆࢥࣥࢺ࣮ࣟࣝࡋࡓࡶࡢ࡜㸪ΰ࿴๣ࢆ౑⏝ࡋ࡞࠸ሙྜࡢࡑࢀࡒࢀ࡟ࡘ࠸࡚㸪ྛᮦ㱋ࡢᙉᗘࢆồࡵ㸪཰⦰㔞ࡢ⤒᫬ኚ໬ࢆ ᐃࡋࡓࠋ
㸱㸬⤖ᯝ࡜⪃ᐹᅗ 㸪ᅗ  ࡟ ȝP ࡜ ȝP ࡢ⢊ᮎᗘࡢ␗࡞ࡿࣂ࢖࢜ࢩࣜ
࢝ࡢΰ࿴๣ࢆ౑⏝ࡋ࡞࠸ሙྜ㸪౑⏝ࡋࡓሙྜࡢࡑࢀࡒࢀ࡟
ࡘ࠸࡚ࡢࣇ್࣮ࣟ㸪✵Ẽ㔞ࡢ⤖ᯝࢆ♧ࡍࠋࣂ࢖࢜ࢩࣜ࢝ࡢ
ΰධ⋡ࡀቑຍࡍࡿ࡟క࠸㸪ὶືᛶࡣపୗࡍࡿഴྥ࡟࠶ࡿࠋ
ࡇࢀࡣῧຍࡍࡿỈࢆࡑࢀࡒࢀࡢΰ࿴ᮦࡀ྾཰ࡍࡿࡇ࡜ࡀせᅉ࡛࠶ࡿ࡜⪃࠼ࡽࢀ㸪ከᏍ㉁ᵓ㐀ࢆ᭷ࡍࡿࣂ࢖࢜ࢩࣜ࢝ࡢ
ሙྜ㸪⢏Ꮚᚄࡀᑠࡉࡃ࡞ࡿ࡜Ỉศࡢ྾཰⋡ࡀᛴ⃭࡟ቑຍࡍࡿ࡜⪃࠼ࡽࢀࡿࠋࡲࡓ㸪✵Ẽ㔞࡟ࡘ࠸࡚ࡶΰ࿴๣ࢆ౑⏝ࡋࡓሙྜ㸪✵Ẽ㐃⾜ᛶࡀ㧗࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ㧗ᛶ⬟ῶỈ๣㔞࡜ᾘἻ๣ࢆ౑⏝ࡋࡓࡇ࡜࡛㸪ࣇ್࣮ࣟ FP㸪✵Ẽ㔞 ࡛ࢥࣥࢺ࣮ࣟࣝࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋᅗ 㹼ᅗᅗ ࣇ್࣮ࣟࡢኚ໬ ࡟ᅽ⦰ᙉᗘࡢ⤖ᯝࢆ♧ࡍࠋᅗ 㹼ᅗ  ࡣ㸪ࣂ࢖࢜ࢩࣜ࢝ࡢ
ΰධ⋡࡟ࡼࡗ࡚ྛᮦ㱋ࡢᙉᗘࡀ࡝ࡢࡼ࠺࡟ኚ໬ࡍࡿ࠿ࢆ⾲ࡋ࡚࠾ࡾ㸪⦪㍈ࢆᅽ⦰ᙉᗘ 1PP 㸪ᶓ㍈ࢆࣂ࢖࢜ࢩࣜ࢝ࡢ
ΰධ⋡  ࡛♧ࡋ࡚࠸ࡿࠋᅗ 㸪ᅗ  ࡣ ȝP ࡜ ȝP ࡢ⢊ᮎᗘࡢ␗࡞ࡿࣂ࢖࢜ࢩࣜ࢝ࡢΰ࿴๣ࢆ౑⏝ࡋ࡞࠸ሙྜࡢࡑ
ࢀࡒࢀ࡟ࡘ࠸࡚ࡢᅽ⦰ᙉᗘࢆ♧ࡋ࡚࠸ࡿࠋᅗ 㸪ᅗ  ࡣ ȝP࡜ ȝP ࡢࣂ࢖࢜ࢩࣜ࢝ΰ࿴๣ࢆ౑⏝ࡋ㸪✵Ẽ㔞㸪ὶືᛶࢆࢥࣥࢺ࣮ࣟࣝࡋࡓሙྜࡢࡑࢀࡒࢀ࡟ࡘ࠸࡚ࡢᅽ⦰ᙉᗘࢆ
♧ࡋ࡚࠸ࡿࠋ࠸ࡎࢀࡶ ࡜ ࡢ࡯࡜ࢇ࡝ࡢ್ࡀࢥࣥࢺ
࣮ࣟࣝࡢ್ࢆୖᅇࡗ࡚࠸ࡿࠋࡲࡓ㸪࡟࠾࠸࡚ᅽ⦰ᙉᗘ
ࡢࣆ࣮ࢡࢆྥ࠿࠼࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡋ࠿ࡋ㸪࡜㸣࡟࠿ࡅ࡚ࡣ㸪ᙉᗘࡢῶᑡഴྥࡀࡳࡽࢀࡿࠋȝP ࡜ ȝPᅗ ✵Ẽ㔞ࡢ౫Ꮡᛶ
ࡢ⤖ᯝࢆẚ㍑ࡍࡿ࡜㸪ȝP ࡛ࡣ᪩ᮇᙉᗘ࡛࠶ࡿ  ᪥ᙉᗘ࡜

− 110 −

ᅗ ᅽ⦰ᙉᗘ ȣΰ࿴๣↓ᅗ ᅽ⦰ᙉᗘ ȣ ΰ࿴๣↓ᅗ ᅽ⦰ᙉᗘ ȣΰ࿴๣᭷    ᅗ  ᅽ⦰ᙉᗘ ȣ ΰ࿴๣᭷ ᪥ᙉᗘ࡟ࡶᙉᗘቑຍࡢഴྥࡀ࠶ࡾ㸪ึᮇ࠿ࡽ㛗ᮇ࡟ࢃࡓࡗ࡚࣏ࢰࣛࣥάᛶࡀᙉࡃ⌧ࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
ȝP ࡛ࡣ  ᪥ᙉᗘࡢẁ㝵࡛࣏ࢰࣛࣥάᛶࡀᙉࡃ⌧ࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋȝP ࡣ㸪 ᪥ᙉᗘ࡟㧗࠸ᙉᗘⓎ⌧ࡀ࠶ࡾ㸪ȝP ࡛ࡣ㸪 ᪥࡟㧗࠸ᙉᗘⓎ⌧ࡀ࠶ࡿࡇ࡜
࠿ࡽ㸪ΰ࿴๣ࡢ᭷↓࡟㛵ࢃࡽࡎ㸪ᙉᗘⓎ⌧࡟㐪࠸ࡀ࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡲࡓ㸪ΰ࿴๣ࢆ౑⏝ࡋࡓሙྜ࡜౑⏝ࡋ࡞࠸ሙྜ࡛ࡣ㸪ΰ࿴๣ࢆ౑⏝ࡋ࡞࠸ሙྜࡢ᪉ࡀᙉᗘࡣ㧗ࡃ࡞ࡗࡓࠋ୍⯡࡟✵Ẽ㔞ࡢቑຍࡣᙉᗘపୗࢆᣍࡃ࡜ࡉࢀ
࡚࠸ࡿࡀ㸪ᮏ◊✲ࡢ⤖ᯝ࠿ࡽࡣ㸪㏫ࡢഴྥࢆ♧ࡋ࡚࠾ࡾ㸪ᅗ  ཰⦰⋡㸦ȣP ΰ࿴๣↓㸧ΰ࿴๣ࡢᙉᗘ࡟ཬࡰࡍヲ⣽࡞᳨ウࡀᚲせ࡜⪃࠼ࡽࢀࡿࠋᅗ 㸪ᅗ  ࡟ΰ࿴๣ࢆ౑⏝ࡋ࡞࠸ሙྜࡢ཰⦰ᛶࡢ⤖ᯝࢆ♧ࡍࠋᅗ 㸪ᅗ  ࡣࣂ࢖࢜ࢩࣜ࢝ࡢΰධ⋡࡟ࡼࡗ࡚ྛᮦ
㱋ࡢ཰⦰㔞ࡀ࡝ࡢࡼ࠺࡟ኚ໬ࡍࡿ࠿ࢆ⾲ࡋ࡚࠾ࡾ㸪⦪㍈࡟ࡣ཰⦰⋡  㸪ᶓ㍈࡟ࡣᮦ㱋᪥ᩘ ᪥ ࡛♧ࡋ࡚࠸ࡿࠋȝPࡶ ȝP ࡶᮦ㱋ࡀึᮇ࠿ࡽ  ᪥ࡲ࡛ࡢ᪩ᮇࡢ཰⦰⋡ࡀቑຍࡍࡿഴྥࡀࡳࡽࢀࡓࠋࡲࡓ㸪࠸ࡎࢀࡶ཰⦰ᛶࡢኚ໬ࡣ
ࢥࣥࢺ࣮ࣟࣝ࡜㢮ఝࡋ࡚࠾ࡾ㸪ΰ࿴๣ࢆ౑⏝ࡋࡓሙྜࡶ
ྠᵝࡢ⤖ᯝࢆ♧ࡋࡓࠋࡇࡢ⤖ᯝ࠿ࡽ㸪ࢩࣜ࢝ࡢ⢏Ꮚᚄ㸦ẚ⾲㠃✚㸧࠾ࡼࡧάᛶᗘࡢ㐪࠸ࡀ཰⦰ᛶ࡟ཬࡰࡍᙳ㡪ࡣᑡᅗ  ཰⦰⋡㸦ȣP ΰ࿴๣↓㸧࡞࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
㸲㸬ࡲ࡜ࡵ
ከᏍ㉁ᵓ㐀ࢆ᭷ࡍࡿ⢄Ẇ⏤᮶ࡢࣂ࢖࢜ࢩࣜ࢝⢏Ꮚࡣ㸪Ỉศ྾཰ᛶࡀ㧗࠸ࡓࡵ࡟ࢭ࣓ࣥࢺࡢὶືᛶࢆపୗࡉࡏ㸪≉࡟㸪ȝP ࡢࡶࡢࢆከ㔞࡟౑⏝ࡍࡿ࡜ࡇࡢഴྥࡀᙉ࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡲࡓ㸪✵Ẽ㐃⾜ᛶࡀ࠶ࡾ㸪ȝPࡢ᪉ࡀ㐃⾜✵Ẽ㔞ࡢከ࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡉࡽ࡟㸪ᙉᗘ࡟ࡘ࠸࡚ ȝP ࡜ ȝP ࡢᙉᗘࢆẚ㍑ࡍࡿ࡜㸪ȝPࡢ᪉ࡀึᮇẁ㝵࠿ࡽ㛗ᮇ࡟Ώࡗ࡚࣏ࢰࣛࣥ཯ᛂࡀ⥅⥆ࡋ㸪ȝP ࡣ  ᪥ࡲ࡛࡟኱ࡁ࡞ᙉᗘቑ㐍ࡀぢࡽࢀࡿࡇ࡜ࡀ
᫂ࡽ࠿࡜࡞ࡗࡓࠋࢥࣥࢺ࣮ࣟࣝࡼࡾࡶᙉᗘࡀฟࡿࡇ࡜࠿ࡽΰ࿴ᮦ࡜ࡋ࡚ࡣ㠀ᖖ࡟ඃࢀࡓᛶ⬟ࢆ᭷ࡋ࡚࠾ࡾ㸪⏘ᴗ๪⏘≀ࢆཎᩱ࡜ࡍࡿࡓࡵ㸪ᗮ౯࡞኱㔞⏕⏘ࣉࣟࢭࢫࡀᐇ⏝໬ࡉࢀࢀࡤ㸪⤒῭ຠᯝࡶᴟࡵ࡚኱ࡁ࠸࡜⪃࠼ࡿࠋ
− 111 −

㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧

7L ⢏Ꮚศᩓ 0J$O ྜ㔠ࡢ⭉㣗⌧㇟࡟ཬࡰࡍ⏺㠃཯ᛂᒙࡢᙳ㡪໭ᾏ㐨኱Ꮫ ᆅ⌫⎔ቃ⛉Ꮫ◊✲㝔  ྂ᭶ᩥᚿ ⥴ ゝ᭱㍍㔞ᕤᴗ⏝㔠ᒓ࡛࠶ࡿ࣐ࢢࢿࢩ࣒࢘ 0J ࡢᙉ໬ᡭἲࡢ୍ࡘ࡜ࡋ࡚㸪6L& ࡸ 7L&㸪$O2 ࡞࡝ࡢࢭ࣑ࣛ
ࢵࢡࢫ⢏Ꮚ࡟ࡼࡿศᩓᙉ໬ࡀሗ࿌ࡉࢀ࡚࠸ࡿ  㸬ࡋ࠿ࡋ㸪ࡇࢀࡽ⢏Ꮚࡢ⬤ᛶ࡟㉳ᅉࡍࡿ」ྜᮦ඲యࡢᘏᛶపୗ  ࡀၥ㢟࡜࡞ࡿ㸬ࡇࢀࡲ࡛࡟㔠ᒓᮏ᮶ࡢ㧗ᘏᛶࢆ⥔ᣢࡋ࡚㧗ᙉᗘ໬࡟᭷ຠ࡞㔠ᒓᇶศᩓᙉ໬⢏Ꮚ࡜ࡋ࡚ࢳࢱࣥ 7L ࢆ㑅ᐃࡋ㸪0J ࡜ࡢ㧗 ⃿ࢀᛶࢆㄪᰝࡋࡓ࡜ࡇࢁ㸪. ࡟࡚⃿ࢀゅࡀ rࢆୗᅇࡿඃ
ࢀࡓ⃿ࢀᛶࢆ᭷ࡍࡿࡇ࡜ࢆ☜ㄆࡋࡓ  㸬ࡲࡓ⣧ 0J⁐‫࡟‮‬⣧ 7L ⢏Ꮚࢆῧຍ࣭ᨩᢾࡋࡓ≧ែ࡛ᄇ㟝㸦࢔ࢺ࣐࢖ࢬ㸧ἲࢆ⏝࠸࡚ 7L ⢏Ꮚศᩓ 0J ᇶ」ྜ⢊ᮎࢆస〇ࡋ㸪ࡑࢀࢆ↝⤖࣭⇕㛫ᢲฟຍᕤࡍࡿࡇ࡜࡛ᘏᛶప
ୗࢆకࢃࡎ㸪ᘬᙇ⪏ຊ࠾ࡼࡧᘬᙇᙉࡉࡢྥୖࢆ☜ㄆࡋࡓ  㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪0J ࡣᕤᴗ⏝㔠ᒓᮦᩱࡢ࡞࠿
࡛᭱ࡶప࠸ᶆ‽㟁ᴟ㟁఩㸦9㸧ࢆ᭷ࡍࡿ༝࡞ࡿ
㔠ᒓ࡛࠶ࡿࡓࡵ㸪㟁఩ᕪࢆ኱ࡁࡃࡍࡿ㔠ᒓඖ⣲ࡀ୙⣧≀࡜ࡋ࡚ 0J ẕ┦࡟Ꮡᅾࡍࡿሙྜࡸ㸪␗✀㔠ᒓ࡜ࡢ᥋ゐ࣭᥋ྜ⏺㠃ࢆᙧᡂࡍࡿሙྜ࡟ࡣ㸪㟁ụຠᯝ࡟ࡼࡿ࢞ࣝࣂࢽࢵࢡ⭉㣗⌧㇟ࡀ㐍⾜ࡍࡿ࡜࠸ࡗࡓၥ㢟ࡀ࠶ࡿ㸬ୖグࡢ 7L ⢏Ꮚศᩓ 0J ᇶ」ྜᮦᩱ࡟࠾࠸࡚㸪
7L ࡢᶆ‽㟁ᴟ㟁఩ࡣ9 ࡛࠶ࡿࡇ࡜࠿ࡽ 0J7L ⏺
㠃࡛ࡣ㟁఩ᕪ࡟ࡼࡿ⭉㣗⌧㇟ࡀᠱᛕࡉࢀࡿ㸬ࡑࡇ࡛㸪ᮏሗ࡛ࡣ 0J7L ᥋ྜ⏺㠃࡛ࡢ⭉㣗⌧㇟࡟㛵ࡋ࡚㸪6.3)0 ࡟ࡼࡿ⾲㠃㟁఩ᕪࡢィ ⤖ᯝ࡟ᇶ࡙ࡃᐃ㔞ⓗ࡞ホ౯ࢆ⾜࠺࡜࡜ࡶ࡟㸪$= ྜ㔠࡜⣧ 7L
࡜ࡢ᥋ྜ⏺㠃࡟࠾ࡅࡿ 7L$O ໬ྜ≀ᒙࡢᙧᡂ࡟ࡼࡿ
⾲㠃㟁఩ᕪ࡬ࡢᙳ㡪࡜㸪ሷỈᾐₕヨ㦂࡟࠾ࡅࡿ⭉㣗⌧㇟࡬ࡢᙳ㡪࡟ࡘ࠸࡚ㄪᰝ࣭ゎᯒࢆ⾜࠺㸬 ᐇ㦂᪉ἲ$= 㗪㐀ᮦ䠄$O =Q 0QPDVV䠅䛛䜙⇕㛫ᢲฟຍᕤ䛻䜘䜚ᚓ䜙䜜䛯Წᮦ䠄┤ᚄ PP䠅䛸⣧ 7L
ᢲฟᮦ䠄ྠ PP䠅䛛䜙䛭䜜䛮䜜඲㛗 PP 䛾ヨᩱ䜢᥇ྲྀ䛧䠈୧ヨᩱ䛾᩿㠃䜢᥋ゐ䛥䛫䛶䜹䞊䝪䞁ᆺ䛻඘ሸ䛧䛯䠊䛣䛾≧ែ䛷 636 ⿦⨨䛻䝉䝑䝖䛧䛶 ᗘ .䠈ᅽຊ03D䠈ಖᣢ᫬㛫 NV 䛾ຍ⇕䞉ຍᅽୗ䛷┤ᚄ PP䠈㛗䛥⣙ PP 䛾ᅛ┦᥋ྜయ䠄௨ୗ $=7L >VROLG@䛸グ䛩䠅䜢స〇䛧䛯䠊䛥䜙䛻䠈䛣䛾᥋ྜయヨᩱ䜢 ᗘ .䠈
$U 㞺ᅖẼ䛻⟶⌮䛧䛯㉥እ⥺䝂䞊䝹䝗䜲䝯䞊䝆⅔ෆ䛷NV ಖ ᣢ 䛧 䠈 $= 䜢 ⁐ ⼥ 䛥 䛫 䛯 ᥋ ྜ య 䠄 $7L
>OLTXLG@䠅䜢స〇䛧䛯䠊ḟ䛻䠈$=7L ᥋ྜ⏺㠃䛷䛾㟁఩ᕪ䛜ᒁ㒊ⓗ䛺⭉㣗⌧㇟䛻ཬ䜌䛩ᙳ㡪䜢ᐃ㔞ⓗ䛻ㄪᰝ䛩䜛䛯䜑䠈㉮ᰝᆺ䜿䝹䝡䞁䝥䝻䞊䝤䝣䜷䞊䝇㢧ᚤ㙾

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䠄ඹྠ◊✲ศ㔝䠖」ྜ໬ᶵᵓᏛศ㔝䠅㻌− 113 −

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࡚ࠊᕷ㈍ࡢ$=࣐ࢢࢿࢩ࣒࢘ྜ㔠ᢲฟᮦࢆ⏝࠸ࡓࠋ౪ヨᮦࡢᚤど⤌⧊ࡢほᐹ౛࠾ࡼࡧᶵᲔⓗᛶ㉁ࢆࡑࢀࡒࢀ)LJ࠾ࡼࡧ7DEOH࡟♧ࡍࠋ5&3ຍᕤࢆ᪋ࡋࡓᢲฟᮦ࡜ᕷ㈍ࡢྜ㔠ᢲฟᮦࡢᖹᆒ⤖ᬗ⢏ᚄࡣࠊࡑࢀࡒࢀࠊ⣙P࠾ࡼࡧ
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࣓࣮ࣜ⣬࡛㈇Ⲵ㍈᪉ྥ࡟◊☻௙ୖࡆࡋࠊࡁ⿣Ⓨ⏕࣭ఏࡥᣲືࡢほᐹࡍࡿࡓࡵࡢ⑂ປ୰᩿ヨ㦂࡛ࡣࠊヨ㦂∦⾲㠃ࢆࡉࡽ࡟ࣂࣇ◊☻ࡋࡓࠋ㈇Ⲵ᮲௳ࡣᛂຊẚࠊ࿘Ἴᩘ㹼+]ࠊⲴ㔜ἼᙧࡀṇᘻἼ࡜ࡋࡓࠋヨ㦂ࡣᐇ㦂ᐊ⎔ቃ୰࡛⾜࠸ࠊᐇ㝿ࡢ ᗘ࡜‵ᗘࡣࠊ㹼Υࠊ㹼㸣5+⛬ᗘ࡛࠶ࡗࡓࠋ⑂ປ୰᩿ヨ㦂࡟࠾ࡅࡿ㈇Ⲵᛂຊ᣺ᖜࡣࠊ࠸ࡎࢀࡢᮦ
ᩱࡶྠ⛬ᗘࡢ⑂ປᑑ࿨࡜࡞ࡿࡼ࠺࡟ࠊ5&3ຍᕤࢆ᪋ࡋࡓ$=ᢲฟᮦࡀ03Dࠊᕷ㈍ࡢ$=ᢲฟᮦࡀ03D࡜ࡋࡓࠋ࡞࠾ࠊྠ㈇Ⲵᛂຊ᣺ᖜ᮲௳࡛ࠊᛂຊ㸫ࡦࡎࡳᣲືࡶㄪ࡭ࡓࠋ5&3ຍᕤࢆ᪋ࡋࡓ$=ᢲฟᮦࢆ౪ヨᮦ࡜ࡋ࡚ࠊ
⑂ປࡁ⿣ఏࡥヨ㦂ࢆ⾜ࡗࡓࠋヨ㦂∦ᙧ≧ࢆ)LJ E ࡟♧ࡍࠋヨ㦂∦⾲㠃ࡣࠊࣂࣇ◊ᦶࢆ᪋ࡋࡓࠋࡁ⿣㛤㛢ཱྀᣲືࢆㄪ࡭ࡿࡓࡵࠊࢤ࣮ࢪ㛗ࡉPPࡢࡦࡎࡳࢤ࣮ࢪࢆヨ㦂∦࡟㈞௜ࡋࡓࠋࡲࡎࠊ.₞ῶヨ㦂࡟ࡼࡾୗ㝈⏺ᛂຊᣑ኱ಀᩘ⠊ᅖǻ.WKࢆồࡵࠊࡑࡢᚋࠊ㈇ⲴⲴ㔜୍ᐃ࡛.₞ቑヨ㦂ࢆ⾜ࡗࡓࠋ㈇Ⲵ᮲௳ࡣࠊᛂຊẚࠊ࿘Ἴᩘ+]ࠊⲴ㔜ἼᙧࡀṇᘻἼ࡜ࡋࡓࠋヨ㦂ࡣ ᗘΥࠊ‵ᗘ㸣ࡢᜏ ᜏ‵ᐊෆ࡛⾜ࡗࡓࠋ㻟㻚㻌 ⤖ᯝ䛚䜘䜃⪃ᐹ㻌ඛࡎࠊ⑂ປᙉᗘヨ㦂⤖ᯝ࠿ࡽᚓࡽࢀࡓ61᭤⥺ࢆ)LJ࡟♧ࡍࠋྠᅗࡼࡾࠊ5&3ຍᕤࢆ᪋ࡋࡓᢲฟᮦࡢ᪉ࡀ㧗࠸⑂ປᙉᗘࢆ♧ࡋࡓࠋ⑂ປ୰᩿ヨ㦂ࡢ⤖ᯝࡼࡾࠊ5&3ࣉࣟࢭࢫࢆ᪋ࡋࡓᢲฟᮦ࡛ࡣࠊ⑂ປᑑ࿨ࡢ⣙㸣ࡢࢧ࢖ࢡࣝᩘ࡛ࠊ⾲㠃ࡁ⿣㛗ࡉF Pࡢ⑂ປࡁ⿣ࡢⓎ⏕ࡀ☜ㄆࡉࢀࡓࠋ௚᪉ࠊᕷ㈍ࡢᢲฟᮦ࡛ࡣࠊ⑂ປᑑ࿨ࡢ⣙㸣ࡢࢧ࢖ࢡࣝᩘ࡛ࠊ⾲㠃ࡁ⿣㛗ࡉF Pࡢ⑂ປࡁ⿣ࡢⓎ⏕ࡀ☜ㄆࡉࢀࡓࠋࡇࢀࡲ࡛࡟ሗ࿌ࡉࢀ࡚࠸ࡿ$=ྜ㔠ࡢ⑂ປࡁ⿣ࡢⓎ⏕ᑑ࿨ࡣࠊ඲⑂ປᑑ࿨ࡢᩘ㹼⛬ᗘ࡛࠶ࡾࠊࡑࢀࡽ࡟ẚ࡭࡚ࠊ5&3ຍᕤࢆ᪋ࡋࡓᢲฟᮦࡢ඲
ᑑ࿨࡟ᑐࡍࡿࡁ⿣Ⓨ⏕ᑑ࿨ࡢ๭ྜࡣ኱ࡁ࠸ࠋ◚㠃ほᐹ⤖ᯝࡼࡾࠊ5&3ຍᕤࢆ᪋ࡋࡓᢲฟᮦ࠾ࡼࡧᕷ㈍ࡢᢲฟᮦࡢ
࠸ࡎࢀࡶࠊヨ㦂∦⾲㠃࠿ࡽ⑂ປࡁ⿣ࡀⓎ⏕ࡋ࡚࠸ࡓࠋ5&3ຍᕤࢆ᪋ࡋࡓᢲฟᮦࡢ◚ቯ㉳Ⅼ㒊࡟ࡣࠊ$O0Q⣔ࡢ௓ᅾ≀ࡀㄆࡵࡽࢀࡓሙྜ࡜ࠊ௓ᅾ≀ࡀ᫂☜࡟ㄆࡵࡽࢀ࡞࠿ࡗࡓሙྜࡀ࠶ࡗࡓࠋ௚᪉ࠊᕷ㈍ࡢᢲฟᮦ࡛ࡣࠊヨ㦂∦⾲㠃࡟཮ᬗ࡜ぢࡽࢀࡿพฝࡀほᐹࡉࢀࠊࡑࢀ࡟ἢࡗ࡚⑂ປࡁ⿣ࡀⓎ⏕ࡋ࡚࠸ࡓࠋࡲࡓࠊ5&3ຍᕤࢆ᪋ࡋࡓᢲฟᮦ࡛ࡣࠊ
⑂ປࡁ⿣ࡀ୍⟠ᡤ࡛Ⓨ⏕ࡋ࡚࠸ࡓࡢ࡟ᑐࡋࠊᕷ㈍ࡢᢲฟᮦ࡛ࡣࠊ」ᩘࡢ⑂ປࡁ⿣ࡀ཮ᬗ࡟ἢࡗ࡚Ⓨ⏕ࡋࠊࡑࢀࡽࡢ
ࡁ⿣ࡀᡂ㛗ࡋࠊࡸࡀ࡚ྜయࡍࡿᵝᏊࡀ☜ㄆࡉࢀࡓࠋ⑂ປ㈇Ⲵ୰ࡢᛂຊ㸫ࡦࡎࡳᣲືࡢ౛ࢆ)LJ࡟♧ࡍࠋྠᅗࡼࡾࠊ
ᕷ㈍ࡢᢲฟᮦ࡛ࡣࠊ㸯ࢧ࢖ࢡࣝ┠ࡢ㈇Ⲵ࠿ࡽࠊ཮ᬗࡢᙳ㡪ࢆ♧၀ࡍࡿᣲືࡀほᐹࡉࢀࡓࡢ࡟ᑐࡋࠊ5&3ຍᕤࢆ᪋ࡋࡓᢲฟᮦ࡛ࡣࠊࡑࡢࡼ࠺࡞ᣲືࡣㄆࡵࡽࢀ࡞࠸ࠋ5&3ຍᕤࢆ᪋ࡋࡓᢲฟᮦࡢ⑂ປࡁ⿣ఏࡥ᭤⥺ࢆ)LJ࡟♧ࡍࠋୗ㝈⏺ᛂຊᣑ኱ಀᩘ⠊ᅖǼ.WKࡣ 03DPࠊୗ㝈⏺᭷ຠᛂຊᣑ኱ಀᩘ⠊ᅖǼ.HIIWKࡣ⣙03DP࡜࡞ࡗࡓࠋ
)LJ࡟ࡣࠊཧ⪃ᩥ⊩࡟ࡼࡿ$=࣐ࢢࢿࢩ࣒࢘ྜ㔠ᢲฟᮦࡢ⑂ປࡁ⿣ఏࡥᣲືࡶ♧ࡋࡓ 㸪 ࠋ*6ࡣᖹᆒ⤖ᬗ⢏ᚄࢆ⾲ࡍࠋ)LJࡼࡾࠊ5&3ຍᕤࢆ᪋ࡋࡓᢲฟᮦࡣࠊ3DULV๎࡟ᚑ࠺㡿ᇦࡢഴࡁࡣ௚ࡢ$=ࡢ⤖ᯝ࡜࡯ࡰ୍⮴ࡍࡿࡀࠊୗ㝈⏺ᛂຊᣑ኱ಀᩘ⠊ᅖࡣప࠸್ࢆ♧ࡋࡓࠋ㻠䠊⤖ゝ㻌⢊ᮎ࡟ᑐࡋ࡚┤᥋ࠊຍᕤṍࢆ⧞ࡾ㏉ࡋ௜୚࡛ࡁࡿ5&3ຍᕤࢆ᪋ࡋࡓ$=࣐ࢢࢿࢩ࣒࢘⢊ᮎྜ㔠ᢲฟᮦࡀᕷ㈍ࡢ

− 114 −

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7DEOH7HQVLOHSURSHUWLHVIRUWKHPDWHULDOVXVHG
Material
Extruded AZ31
via RCP process
Commercial
extruded AZ31

Tensilestrength, MPa

0.2%proof stress,
MPa㻌Elongation
,%

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323

254

20

247

206

22.8

Fig.2 Specimen shape for (a) fatigue strength
test and (b) fatigue crack growth test.

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D 03D㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 115 −

పᨺᑕ໬ࣇ࢙ࣛ࢖ࢺ㗰ࢆ⏝࠸ࡓ␗ᮦ⥅ᡭࡢホ౯ᮾ໭኱Ꮫ㔠ᒓᮦᩱ◊✲ᡤ㜿㒊ᘯ஽ࠊ኱ሙᙲࠊྔ㔝⩧
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᰾⼥ྜⓎ㟁ࡣ⇞ᩱ࡟Ỉ⣲ࡸ࣒࣊ࣜ࢘ࡢྠ఩యࢆ⏝࠸ࠊⓎ㟁࡟క࠺஧㓟໬Ⅳ⣲ࡢ᤼ฟࡀ↓ࡃࠊḟୡ௦࢚ࢿࣝ
ࢠ࣮※࡜ࡋ࡚ᮇᚅࡉࢀ࡚࠸ࡿࠋ᰾⼥ྜ⅔࡟࠾࠸࡚ࠊ᰾⼥ྜ཯ᛂࡢ㝿࡟ᨺฟࡉࢀࡿ୰ᛶᏊࢆ㐽ⶸࡋࠊࡉࡽ࡟⇞ᩱࢆྜᡂࠊ㈓ⶶࡢᶵ⬟ࢆᢸ࠺ࡢࡀ͆ࣈࣛࣥࢣࢵࢺ͇࡛࠶ࡿࠋࣈࣛࣥࢣࢵࢺࡢᵓᡂᮦᩱࡣ 㹼Υࡢ㧗 ࡛୰ᛶᏊࡢ↷ᑕࢆཷࡅࡿࡇ࡜࠿ࡽࠊ㧗 ᙉᗘ≉ᛶࠊ⪏↷ᑕᛶࠊపᨺᑕ໬≉ᛶ࡞࡝ࡢᶵ⬟せồࡀ࠶ࡾࠊࡇࢀࡽࢆ
‶㊊ࡍࡿᮦᩱ࡜ࡋ࡚ )+ 㗰ࡀ᭷ᮃどࡉࢀ࡚࠸ࡿࠋ⌧ᅾࡢ ,7(5 ࡸ '(02 ࡢタィ࡛ࡣࠊࣈࣛࣥࢣࢵࢺ㒊࡟ࡣ )+㗰ࢆ⏝࠸ࠊຍᅽỈᆺ㍍Ỉ⅔ 3:5 ࡜ྠᵝ᮲௳࡛ࡢ㍍Ỉ෭༷ࢆ⾜࠸ࠊ෭༷Ỉ㓄⟶ᮦᩱ࡜ࡋ࡚ࡣ⭉㣗≉ᛶ࡟ඃࢀࡿ
686/ ࡀ᳨ウࡉࢀ࡚࠸ࡿ>@ࠋࡋࡓࡀࡗ࡚ࣈࣛࣥࢣࢵࢺస〇ࡢ㝿࡟ࡣ )+ 㗰࡜ 686/ ࡢ␗✀ᮦᩱ⁐᥋ࡀᚲせ࡛࠶ࡾࠊࣇ࢓࢖ࣂ࣮࣮ࣞࢨ࣮⁐᥋ἲࡢ㐺⏝ࡀ᳨ウࡉࢀ࡚࠸ࡿ>@ࠋࣇ࢓࢖ࣂ࣮࣮ࣞࢨ࣮⁐᥋ἲࡣᚑ᮶ἲ࡟
ẚ࡭⁐᥋㒊ࡢ⊃ᑠ໬ࡀྍ⬟࡛ࠊ኱Ẽ୰࡛౑⏝࡛ࡁࡿ࡜࠸࠺࣓ࣜࢵࢺࡀ࠶ࡿࠋࣇ࢓࢖ࣂ࣮࣮ࣞࢨ࣮⁐᥋ࡢᐇᶵ㐺⏝࡟ࡣ࣮ࣞࢨ࣮ฟຊ࣭㉮ᰝ㏿ᗘࠊᚄࠊ⁐᥋఩⨨ࠊ⁐᥋ᚋ⇕ฎ⌮࡞࡝ࡢ᮲௳ࡢ᭱㐺໬ࡀᚲせ࡛࠶ࡿࠋ
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࠿ࡋ㏆ᖺࡢ◊✲࡟ࡼࡾࠊ⁐᥋ࡸ↷ᑕୗ࡟࠾࠸࡚ᯒฟ≀ࡢᾘ⁛ࡸ㠀ᬗ㉁໬⌧㇟ࡀሗ࿌ࡉࢀ࡚࠸ࡿ>@ࠋ≉࡟
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㒊㸦+$=㸧ࢆศᯒᑐ㇟࡜ࡋࠊ⤖ᬗ⢏ᚄศᕸࠊ⤌ᡂࠊᯒฟ≀࡟㛵ࡍࡿ᝟ሗࢆྲྀᚓࡍࡿࡓࡵ㟁Ꮚ⥺ᚋ᪉ᩓ஘ᅇᢡἲ
㸦(%6'㸧
ࠊ㟁Ꮚ⥺࣐࢖ࢡ࡜࢔ࢼࣛ࢖ࢨ㸦(30$㸧
ࠊ㏱㐣㟁Ꮚ㢧ᚤ㙾ἲ㸦7(0㸧
ࠊ67(0('6 ࢆ⏝࠸ࡓࠋᑦࠊศᯒࡢᑐ
㇟࡜ࡍࡿヨᩱ㠃ࡣ⤫୍ࡋࠊ࣮ࣞࢨ࣮㉮ᰝ᪉ྥ࡟ᑐࡋ࡚ᆶ┤࡞㠃࡜ࡋࠊ+$=㸭:0 ⏺㠃࠿ࡽࡢ㊥㞳ࡢ㛵ᩘ࡜ࡋ࡚ᩚ⌮ࡋࡓࠋ㸬⤖ᯝ࠾ࡼࡧ⪃ᐹ)+ 㗰ഃ࡟ᙧᡂࡉࢀࡓ +$= ࡢ (%6' ศᯒ⤖ᯝ࡜ࡋ࡚ࠊ㏫ᴟⅬᅗ㸦,3)㸧
ࠊᒁᡤ᪉఩ᕪ㸦.$0㸧࠾ࡼࡧ⢏⏺㸦%*㸧ࢆᅗ  ࡟♧ࡍࠋ+$= ࡛ࡣ )+ ẕ┦࡟ẚ࡭⤖ᬗ⢏ᚄࡢᚤ⣽໬ࡀぢࡽࢀࠊ≉࡟ᅗ୰ࡢ㸦EF G㸧ࡢᆅⅬ࡛ࡣ┤ᚄ  QP ⛬ᗘࡢᚤ⣽⤖ᬗ⢏ࡀ☜ㄆࡉࢀࡓࠋࡇࢀࡽࡀᙧᡂࡉࢀࡿ⟠ᡤࡣ +$=㸭:0 ⏺㠃࠿ࡽẚ㍑ⓗ㞳ࢀ࡚࠾ࡾ⇕ᙳ㡪ࡢᑠࡉ࠸㡿ᇦ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋᅗ  ࡟ࠊ+$= ෆࡢᯒฟ≀ศᕸࢆ 7(0 ほᐹ࡛ྲྀᚓࡋ +$=㸭:0 ⏺㠃࠿ࡽࡢ㊥㞳ࡢ㛵ᩘ࡜ࡋ࡚♧ࡋࡓࠋ⏺㠃࠿ࡽࡢ㊥㞳ࡣࠊගᏛ㢧ᚤ㙾࡟ࡼࡿほᐹ࡟ࡼࡾᚓࡓࠋᅗࡼࡾࠊᯒฟ≀ࡣ +$=㸭:0 ⏺㠃࠿ࡽ⣙ ȣP ௨ୖࡢᆅⅬ࡟Ꮡᅾࡋࠊ⣙ ȣP ௨ୖ㞳ࢀࡓᆅⅬ࡛ࡣ )+ ẕ┦࡟㏆࠸⤌⧊࡛࠶ࡗࡓࠋ

− 116 −

(30$ ࡟ࡼࡿ +$= ྛ㒊఩ࡢ &U ࡜ & ࡢඖ⣲ศᕸࢆᅗ  ࡟♧ࡍࠋ)+ 㗰ẕ┦㸭+$= ⏺㠃࡟┦ᙜࡍࡿ㸦$㸧࡛ࡣ &U
࡜ & ࡀྠᵝ࡟⃰໬ࡋ࡚࠾ࡾࠊⅣ໬≀࡜ࡋ࡚ࡢᯒฟࡀ♧၀ࡉࢀࡓࠋ୍᪉ࠊ⏺㠃࠿ࡽ⣙  ȣP ࡢ㸦%㸧࡛ࡣ &Uࡢ⃰໬ࡀ☜ㄆࡉࢀࡓࡶࡢࡢ & ࡣᆒ୍ศᕸࡋ࡚࠾ࡾࠊ&U ࡢ೫ᯒࡀほᐹࡉࢀࡓࠋࡇࢀࡣ &U ࡜ & ࡢᣑᩓ㏿ᗘࡢᕪ࡟ࡼࡾ⏕ࡌࡓ⌧㇟࡛࠶ࡿ࡜᥎ ࡉࢀࡿࠋࡼࡾ :0 ࡟㏆࠸㸦&㸧࡛ࡣ &Uࠊ& ࡜ࡶ࡟⃰໬ࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓࠋᅗ ࡟ࠊࡉࡽ࡟㧗ศゎ⬟࡞ +$= ࡢ⤌ᡂศᯒ⤖ᯝࢆ♧ࡍࠋࡇࢀࡼࡾ )+ ẕ┦࡛ࡣ⢏⏺ୖ࡟ᯒฟ≀ࡀᏑᅾࡍࡿࡀࠊ
+$=㸭:0 ⏺㠃࠿ࡽ⣙  ȣP ᆅⅬࠊࡘࡲࡾᅗ  ࡢ㸦%㸧࡜㸦&㸧ࡢ୰㛫௜㏆࡛ࡣᯒฟ≀ࡀ᏶඲࡟⁐ゎࡋࡓࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
㸬ࡲ࡜ࡵ
⁐᥋⇕ᙳ㡪㒊ࡢ 0& ࡢ୙Ᏻᐃ໬ࢆ☜ㄆࡋࡓࠋ↷ᑕୗ࡛ࡣ 0& ࠿ࡽẕ┦࡬ࡢ &U ࡢὶฟࡀ㉳ࡇࡾࠊእ⦕㒊࡛⤖ᬗᛶࡀᦆ࡞ࢃࢀ࡚࠸ࡓࠋ0& ࡣ 7D& ࡜ẚ࡭࡚ࡼࡾ」㞧࡞⤖ᬗᵓ㐀࡛࠶ࡾࠊࢧ࢖ࢬࡶ኱ࡁࡃࠊ௒ᅇࡢࡼ࠺࡞
」㞧࡞ᣲືࢆ♧ࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ୍᪉ࠊ⁐᥋ධ⇕࡟ࡼࡿᙳ㡪࠿ࡽࡣ 0& ࡢ⁐ゎ࡞࡝ࡀ☜ㄆࡉࢀࠊࡇࡢᣲື
ࡣࠊ+$=㸭:0 ⏺㠃࠿ࡽࡢ㊥㞳࡟ࡼࡾᩚ⌮࡛ࡁࡓࠋ⏺㠃࠿ࡽ㏆࠸㒊ศ࡛ࡣࠊ0& ᵓᡂඖ⣲࡛࠶ࡿ &U ࠾ࡼࡧ & ࡀඹ࡟༑ศ࡟ᣑᩓࡍࡿࡓࡵࠊ᏶඲࡟⁐ゎࡍࡿࠋ୍᪉࡛⏺㠃࠿ࡽ࠶ࡿ୍ᐃ㊥㞳ࢆ㞳ࢀࡿ࡜ࠊ&U ࡀ༑ศ࡟ᣑᩓࡍࡿࡢ࡟ᚲせ࡞ධ⇕ࡀᚓࡽࢀࡎᣑᩓ㏿ᗘࡢ኱ࡁ࠸ & ࡢࡳࡀᣑᩓࡋࠊ⤖ᯝ࡜ࡋ࡚ &U ࡀ೫ᯒࡍࡿࠋࡉࡽ࡟⏺㠃࠿ࡽ㐲ࡃ࡞ࡾࠊ)+ ẕ┦௜㏆࡟࡞ࡿ࡜ 0& ࡣ⁐ゎࡋ࡞࠸ࠋ


ཧ⪃ᩥ⊩
>@7+LURVHHWDO)XVLRQ(QJLQHHULQJDQG'HVLJQ  
>@+7DQLJDZDHWDO)XVLRQDQG(QJLQHHULQJ'HVLJQ  
>@76DZDLHWDO-1XFO0DWHU  
>@+7DQLJDZDHWDO-1XFO0DWHU  
>@+6HUL]DZDHWDO)XVLRQ(QJ'HV  ⾲㸯㸬ヨᩱ⤌ᡂ㸦ZW㸧




F82H
SUS316L

C
0.097
0.021

Si
0.1
0.73

Mn
0.44
0.99

Cr
7.81
17.25

Ni
<0.002
12.13






− 117 −

Mo
<0.002
2.11

W
1.86

V
0.2

Ta
0.058

Fe
Bal.
Bal.

ᅗ 1. HAZ ࡢ⤖ᬗ⢏ᚄศᕸᅗ 㻞㻚㻌㻴㻭㼆 ࡢᯒฟ≀ศᕸ㸦㼀㻱㻹 ほᐹ㸧㻌

− 118 −

ᅗ 3. EPMA ⤌ᡂศᯒᅗ 㻠㻚㻌㻿㼀㻱㻹㻛㻱㻰㻿 ࡟ࡼࡿ⤌ᡂศᯒ㻌ඹྠ◊✲ศ㔝㸸ᩘ⌮ゎᯒᏛศ㔝− 119 −

⁐᥋⥅ᡭ୰࡟Ꮡᅾࡍࡿ⾲㠃ࡁ⿣㐍ᒎࢩ࣑࣮ࣗࣞࢩࣙࣥ࡜ࡑࡢホ౯࡟㛵ࡍࡿ◊✲ᗈᓥ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲㝔 ຓᩍ⏣୰ᬛ⾜1. ࡣࡌࡵ࡟ ࢪࣕࢣࢵࢺࡸࣜࢢ࡞࡝ࡢᾏὒᵓ㐀≀ࡣ㸪ඃࢀࡓᙉᗘࡸὶయຊᏛⓗ≉ᛶ࠿ࡽࣃ࢖ࣉᵓ㐀ࡸ෇⟄⥅ᡭࢆ⏝࠸ࡿࡇ࡜ࡀከࡃ㸪ࡑࡢ㔜せᛶ࠿ࡽ෇⟄⥅ᡭࡢ⑂ປᙉᗘ࡟㛵ࡍࡿ◊✲ࡣከࡃᐇ᪋ࡉࢀ࡚ࡁࡓ㸬୍᪉࡛㸪෇⟄⥅ᡭࡣᵓ㐀ࡢ」㞧ࡉ࠿ࡽヲ⣽࡞ FEM ⏕ᡂࡀᐜ࡛᫆ࡣ࡞ࡃ㸪ຠ⋡ⓗ࡞ࣔࢹࣝ⏕ᡂᢏ⾡ࡀồࡵࡽࢀ࡚࠸ࡿ㸬ⴭ⪅ࡣ
3D-CAD ࠿ࡽ FEM ࣔࢹࣝ⮬ື⏕ᡂ㸪࠾ࡼࡧࡁ⿣㐍ᒎゎᯒࡀྍ⬟࡞ゎᯒࢩࢫࢸ࣒ࢆ⏝࠸࡚⁐᥋⥅ᡭࡢ⑂ປᙉᗘホ౯࡟㛵ࡍࡿ◊✲ࢆ⾜ࡗ࡚࠸ࡿ㸬ࡇࢀࡲ࡛࡟㸪⾲㠃ࡁ⿣ࢆ᭷ࡍࡿ T ⥅ᡭࡢࡁ⿣㐍ᒎゎᯒࢆᐇ᪋ࡋ㸪ࡁ⿣㐍ᒎᙧ≧ࡸ⑂ປᑑ࿨ࡢホ౯ࢆ⾜ࡗࡓ(1)㸬ࡇࡢ᪉ἲ࡛ࡣ㸪ᅄ㠃య஧ḟせ⣲ࢆ⏝࠸ࡓ⮬ື࣓ࢵࢩࣗศ๭࡟ࡼࡾຠ
⋡ⓗ࡟ FEM ࣔࢹࣝ⏕ᡂࡀ࡛ࡁࡿࡔࡅ࡛࡞ࡃ㸪⮬ື࣓ࢵࢩࣗ෌ศ๭ᶵ⬟ࢆ⏝࠸ࡿࡇ࡜࡛」㞧ᙧ≧୰ࡢ ࡁ⿣㐍ᒎࢩ࣑࣮ࣗࣞࢩࣙࣥࢆᐜ᫆࡟⾜࠺ࡇ࡜ࡀ࡛ࡁࡿ㸬ᮏ◊✲࡛ࡣ⁐᥋Ṇ➃ᙧ≧ࡀ␗࡞ࡿ」ᩘࡢ෇⟄⥅ᡭ୰ࡢ⾲㠃ࡁ⿣㐍ᒎゎᯒࢆ⾜࠸㸪ࡑࡢ⤖ᯝ࡟ᑐࡋ࡚ຊᏛⓗ⪃ᐹࢆ⾜ࡗࡓ(2)㸬
㸰㸬෇⟄⥅ᡭヨ㦂య(3)(4) ᅗ 1(a) ࡟♧ࡍᯞ⟶࡜୺⟶࠿ࡽᵓᡂࡉࢀࡿ෇⟄⥅ᡭヨ㦂యࢆゎᯒᑐ㇟࡜ࡍࡿ㸬ᅗ 1(b) ࡣ⑂ປヨ㦂ࡢᵝᏊࢆ♧ࡋ࡚࠸ࡿ㸬⑂ປヨ㦂ࡣ⁐᥋Ṇ➃㒊ࡢ␗࡞ࡿ」ᩘࡢヨ㦂యࢆ⏝࠸࡚ᐇ᪋ࡉࢀࡓ㸬ᅗ 2 ࡣ㸪ࡑࢀࡒࢀࡢヨ㦂యࡢ⁐᥋㒊ࡢṆ➃ᙧ≧ࢆࣔࢹࣝ໬ࡋࡓ FEM ࣔࢹ࡛ࣝ࠶ࡿ㸬ࡑࢀࡒࢀヨ㦂యࢆ Specimen 1,2,3 ࡜ࡋ࡚㸪ࡑࡢṆ➃᭤⋡༙ᚄࡣࡑࢀࡒࢀ 3, 6, 11 (mm) ࡛࠶ࡗࡓ㸬ᅗ 1 ⑂ປヨ㦂⤖ᯝ [(a) ヨ㦂యᑍἲ㸪(b) ࡁ⿣㐍ᒎࡢほᐹ]ᅗ 2 ⁐᥋Ṇ➃ᙧ≧㸱㸬ࡁ⿣㐍ᒎゎᯒᅗ㸰࡟♧ࡋࡓ FEM ࣔࢹࣝࡢ⁐᥋Ṇ➃㒊 (࢔࣮ࣝṆࡲࡾ) ࡟ᖜ 0.4 (mm)㸪῝ࡉ 0.2 (mm) ࡢ⾲㠃ࡁ⿣ࢆ㓄⨨ࡋ ࡁ⿣㐍ᒎゎᯒࢆᐇ᪋ࡋࡓ㸬඲࡚ࡢゎᯒࣔࢹࣝ࡟Ⲵ㔜ẚ R = 0.05 ࡢ∦᣺ࡾヨ㦂ࢆ᝿ᐃࡋࡓⲴ㔜 133KN
ࢆ⧞ࡾ㏉ࡋ㈇Ⲵࡍࡿ㸬⥅ᡭᵓ㐀඲యࡢ࣓ࢵࢩ୍ࣗ㎶ࡢ㛗ࡉࡣ⣙ 8mm ࡛࠶ࡾ㸪ࡁ⿣࿘㎶㒊࡟࡞ࡿ࡯࡝࣓ࢵࢩ

− 120 −

ࣗศ๭ࢆ⣽࠿ࡃࡋ࡚࠸ࡁ㸪ࡁ⿣๓⦕ࡢ࣓ࢵࢩ୍ࣗ㎶ࡢ㛗ࡉࡣ⣙ 0.05mm ࡛࠶ࡿ㸬Specimen 1 ࡣ⣙ 42 ୓⠇Ⅼ㸪⣙ 25 ୓せ⣲㸪Specimen 2 ࡣ⣙ 45 ୓⠇Ⅼ㸪⣙ 27 ୓せ⣲㸪Specimen 3 ࡣ⣙ 46 ୓⠇Ⅼ㸪⣙ 28 ୓せ⣲࡛࠶ࡿ㸬ヲ⣽ࡣᩥ⊩(2)ࢆཧ↷ࡉࢀࡓ࠸㸬ᅗ 3 ྛヨ㦂య࡛ࡢࡁ⿣㐍ᒎ⤒㊰ ⾲㠃ࡁ⿣㈏㏻᫬ࡢྛヨ㦂యࡢࡁ⿣㐍ᒎ≧ἣ࡜⾲㠃ࡁ⿣୰ኸ㒊ࡢ x-y ᩿㠃ࡢࡁ⿣㐍ᒎࡢᵝᏊࢆᅗ㸱࡟♧ࡍ㸬ᅗ㸱ᕥୖ࠿ࡽࢃ࠿ࡿࡼ࠺࡟ྛヨ㦂య࡜ࡶ᭤㠃ࢆᣢࡘ⾲㠃ࡁ⿣ࡀ⏕ᡂࡉࢀ࡚࠾ࡾ㸪⑂ປヨ㦂࡜ྠᵝ࡞⤖ᯝࢆᚓࡿࡇ࡜ࡀ࡛ࡁ࡚࠸ࡿ㸬ࡲࡓ⁐᥋㒊࢔࣮ࣝṆࡲࡾࢆᅗ୰࡟♧ࡋ࡚࠸ࡿࡀ㸪⁐᥋Ṇ➃᭤⋡ࡀ኱ࡁࡃ࡞ࡿ࡯࡝㸪⾲㠃ࡁ⿣ࡣ࢔࣮ࣝṆࡲࡾ࠿ࡽ㞳ࢀࡿ᪉ྥ࡟㐍ᒎࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡲࡓ㸪ᅗ㸱ᕥୗᅗ࡛ࡣึᮇࡁ⿣῝ࡉ᪉ྥࢆⅬ⥺࡛㸪ᐇ㝿ࡢࡁ⿣㐍ᒎ⤒㊰ࢆᐇ⥺࡛♧ࡋ࡚࠸ࡿ㸬ࡁ⿣᭱῝㒊ࡣᯈཌ༙ศ⛬ᗘࡲ࡛ࡣ࡯ࡰ┤⥺≧࡟㐍ᒎࡋ㸪ࡁ⿣㈏㏻┤๓࡟࡞ࡿ࡜ᛴ⃭࡟ゅᗘࢆࡶࡗ࡚㐍ᒎࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ㸬ᅗ㸱ྑᅗࡣ ࡁ⿣࣐࢘ࢫ㒊ࡢ㐍ᒎᙧ≧ࢆ♧ࡋࡓࡶࡢ࡛࠶ࡾ㸪⁐᥋Ṇ➃༙ᚄࡀᑠࡉࡃ࡞ࡿ࡯࡝㸪⁐᥋㒊࡟ἢࡗ࡚ࡁ⿣ࡀ㐍ᒎࡋ࡚࠸ࡿࡇ࡜ࡀ
ࢃ࠿ࡿ㸬ࡇࢀࡣ㸪⁐᥋Ṇ➃㒊࡛ࡢᛂຊ㞟୰ࡀᙳ㡪ࡋ࡚࠸ࡿࡓࡵ࡜⪃࠼ࡽࢀࡿ㸬㸲㸬࠾ࢃࡾ࡟ ᮏ◊✲࡛⏝࠸࡚࠸ࡿ FEM ࣔࢹࣝ໬㸪ࡁ⿣㐍ᒎゎᯒࢩࢫࢸ࣒ࢆ⏝࠸ࡿࡇ࡜࡛」ᩘࡢヨ㦂యࣔࢹࣝࡢ ࡁ⿣㐍ᒎゎᯒࢆᐜ᫆࡟⾜࠺ࡇ࡜ࡀ࡛ࡁࡓ㸬⁐᥋Ṇ➃᭤⋡ࡢ㐪࠸࡟ࡼࡗ࡚ᛂຊ㞟୰ࡸࡁ⿣ࡢఏ᧛ᣲື࡟㐪࠸ࡀฟࡿ⌧㇟ࢆ FEM ゎᯒ࠿ࡽ᳨ドࡍࡿࡇ࡜ࡀ࡛ࡁࡓ㸬௒ᚋࡣ S-N ⥺ᅗ࡞࡝ࢆ⏝࠸࡚ࡁ⿣㐍ᒎᑑ࿨࡟㛵ࡍࡿ⪃ᐹࢆ⾜ࡗ
࡚ࡺࡃ㸬

ཧ⪃ᩥ⊩
(1) Satoyuki Tanaka, Takahiro Kawahara, Hiroshi Okada, Study on crack propagation simulation of
surface crack in welded joint structure, Marine Structures, 39 (2014), pp.315-334.
(2) Ἑཎᓫᾈ㸪⏣୰ᬛ⾜㸪ඵᮌ୍᱒㸪ᮧୖ㈗ᚿ㸪ᒸ⏣⿱㸪኱ἑ┤ᶞ㸪෇⟶ T ⥅ᡭࡢ⑂ປᑑ࿨࡜ட⿣ఏ᧛࡟㛵ࡍࡿᐇ㦂ⓗ⪃ᐹ㸪᪥ᮏ⯪⯧ᾏὒᕤᏛ఍ㅮ₇఍ㄽᩥ㞟㸪19 (2014), pp. 259-262.
(3) ඵᮌ୍᱒㸪ᮧୖ㈗ᚿ㸪෇⟶ T ⥅ᡭࡢ⑂ປᑑ࿨࡜ட⿣ఏ᧛࡟㛵ࡍࡿᐇ㦂ⓗ⪃ᐹ㸪᪥ᮏ⯪⯧ᾏὒᕤᏛ఍ㅮ₇఍ㄽᩥ㞟㸪16 (2013), pp. 535-538.
(4) ඵᮌ୍᱒㸪ᮧୖ㈗ᚿ㸪FE ゎᯒ࡟ࡼࡿ෇⟶ T ⥅ᡭࡢ⑂ປᙉᗘホ౯࡟㛵ࡍࡿ⪃ᐹ㸪᪥ᮏ⯪⯧ᾏὒᕤᏛ఍ㅮ
₇఍ㄽᩥ㞟㸪17(2013), pp. 77-80.
(ඹྠ◊✲ศ㔝㸸ᩘ⌮ゎᯒᏛศ㔝)− 121 −

᰾⼥ྜ⅔పᨺᑕ໬㔠ᒓᮦᩱ␗ᮦ⁐᥋㒊ࡢㅖ≉ᛶ࡟ཬࡰࡍ⁐᥋᮲௳ࡢᙳ㡪ᮾ໭኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉
㔝ୖಟᖹ
㸬ㅖゝ
1㸬
పᨺᑕ໬ࣇ࢙ࣛ࢖ࢺ㗰ࡣࠊᅜ㝿⇕᰾⼥ྜᐇ㦂⅔㸦International Thermonuclear Experimental Reactor : ITER㸧ࡢࢸࢫࢺࣈࣛࣥࢣࢵࢺࣔࢪ࣮ࣗࣝࡸཎᆺ⅔ࣈࣛࣥࢣࢵࢺࡢᵓ㐀ᮦᩱࡢೃ⿵࡜ࡋ࡚⪃࠼ࡽࢀ࡚࠸ࡿࠋ୍᪉ࠊࣈࣛࣥࢣࢵࢺ࿘
㎶ᶵჾ࡟ࡣࠊ⏕⏘ᛶࡸࢥࢫࢺ࡞࡝ࡢ㠃࠿ࡽࠊ࣮࢜ࢫࢸࢼ࢖ࢺࢫࢸࣥࣞࢫ㗰࡞࡝ࡢỗ⏝㗰ࡀ⏝࠸ࡽࢀ࡜⪃࠼ࡽࢀࡿࠋ
ࡑࡢࡓࡵࠊపᨺᑕ໬ࣇ࢙ࣛ࢖ࢺ㗰࡜ỗ⏝㗰ࡢ㛫࡛␗ᮦ᥋ྜࡀᚲせ࡜ࡉࢀࡿࠋ
ᚑ᮶ࡢ◊✲࡟࠾࠸࡚ࠊపᨺᑕ໬ࣇ࢙ࣛ࢖ࢺ㗰 F82H ࡜࣮࢜ࢫࢸࢼ࢖ࢺࢫࢸࣥࣞࢫ㗰 SUS316L ࡢ㟁Ꮚࣅ࣮࣒㸦Electron Beam : EB㸧⁐᥋⥅ᡭ࡟ᑐࡋࠊ◳ᗘศᕸ࡟ཬࡰࡍ⁐᥋ᚋ⇕ฎ⌮㸦Post Welding Heat Treatment : PWHT㸧ࡢᙳ㡪ࢆㄪᰝࡋࡓ[1, 2]ࠋࡇࡢ⁐᥋⥅ᡭࡣ F82H ࡢẕᮦ㸦Base Metal : BM㸧ࠊF82H ࡢ⇕ᙳ㡪㒊㸦Heat Affected Zone : HAZ㸧ࠊ
F82H-HAZ ➃㒊ࡢ୰㛫ᒙ㸦Interlayer : IL㸧ࠊ⁐㔠㒊
㸦Weld Metal : WM㸧ࠊ
SUS316Lࡢ BMࡢ5㡿ᇦ࡟ศ㢮ࡉࢀࠊ
F82H-HAZࡣ࣐ࣝࢸࣥࢧ࢖ࢺ┦ࠊWM ࡣ࣮࢜ࢫࢸࢼ࢖ࢺ┦࡛࠶ࡾࠊIL ࡟ࡘ࠸࡚ࡣࢹࣝࢱࣇ࢙ࣛ࢖ࢺ┦࡛࠶ࡿྍ⬟ᛶࡀ♧၀ࡉࢀࡓࠋ⁐᥋ࡲࡲ࡟࠾࠸࡚ࡣࠊF82H-HAZ ࠾ࡼࡧ IL ࡟࠾ࡅࡿⴭࡋ࠸㧗࠸◳ᗘࡀほᐹࡉࢀࡓࠋ୍᪉ࠊ680Υ࡟࠾ࡅࡿ
PWHT ࡟ࡼࡾࡇࢀࡽࡢ㡿ᇦࡣẕᮦ⛬ᗘ࡟ࡲ࡛◳ᗘࡀపୗࡋࡓࡀࠊ720Υ࡟࠾ࡅࡿ PWHT ࡛ࡣ IL ࡢ㌾໬ࡀ⏕ࡌࡓࠋ
ᖹᡂ 23 ᖺᗘࡢᮏඹྠ◊✲࡟࠾࠸࡚ࠊ300Υ┿✵୰࡟࠾ࡅࡿᘬᙇヨ㦂࡟ࡼࡾᮏ⥅ᡭࡢ◚᩿఩⨨ࡣ⇕ฎ⌮ ᗘ࡟ࡼࡽࡎ WM ࡛࠶ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡋ࠿ࡋࠊ౑⏝ࡋࡓᘬᙇヨ㦂∦㸦SS-J ᆺ㸧ࡢᯈཌࡣ 0.35 mm ࡜ẚ㍑ⓗⷧ࠿ࡗࡓࠋ
㏆ᖺࡢᅜෆࡢ◊✲࡛ࡣࠊSS-J ᆺヨ㦂∦࡟࠾࠸࡚ಙ㢗ᛶࡢ㧗࠸ఙࡧࢆⓎ⌧ࡉࡏࡿࡓࡵ࡟ࡣᯈཌ 0.7 mm ⛬ᗘ௨ୖࡀጇ
ᙜ࡛࠶ࡿ࡜ࡢぢゎࡀ♧ࡉࢀ࡚࠸ࡿࡇ࡜࠿ࡽࠊ
ᮏ◊✲࡟࠾࠸࡚ࡶ⥅ᡭࡢᘬᙇ≉ᛶ࡟ཬࡰࡍヨ㦂∦ᯈཌࡢᙳ㡪ࢆホ౯ࡍࡿࡇ࡜ࡀᚲせ࡛࠶ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊF82H ࡜ SUS316L ࡢ㟁Ꮚࣅ࣮࣒⁐᥋⥅ᡭ࡟ࡘ࠸࡚ࠊ㧗 ᘬᙇ≉ᛶ࡟ཬࡰࡍヨ㦂∦ᯈཌࡢᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ㸬ᐇ㦂᪉ἲ2㸬ᮏ◊✲࡛ࡣపᨺᑕ໬ࣇ࢙ࣛ࢖ࢺ㗰 F82H IEA heat ࡜࣮࢜ࢫࢸࢼ࢖ࢺࢫࢸࣥࣞࢫ㗰 SUS316L ࢆ౪ヨᮦ࡜ࡋ࡚⏝࠸
ࡓࠋF82H IEA heat ࡣࠊ1040Υ࡛ 40 ศࡢ↝ࡁ࡞ࡽࡋᚋࠊ750Υ࡛ 1 ᫬㛫ࡢ↝ࡁᡠࡋࢆ⾜ࡗࡓࠋ SUS316L ࡣࠊ1040Υ
࡛ 10 ศࡢ⁐య໬ฎ⌮ࢆ⾜ࡗࡓࠋEB ⁐᥋ࡣᯈཌ 7 mm ࡢᖹᯈࡢ✺ྜࡏ࡟࡚ᐇ᪋ࡋࡓࠋ⁐᥋᮲௳ࡣࠊຍ㏿㟁ᅽ 20 kVࠊࣅ࣮࣒㟁ὶ 20 mAࠊ⁐᥋㏿
ᗘ 1000 mm/min ࡛࠶ࡗࡓࠋEB ࡢධᑕ఩⨨ࡣࠊSUS316L ഃ࡟ 0.2 mm ࡎࡽࡋࡓ[1, 2]ࠋPWHT ࡣࠊF82H ࡢ↝ࡁᡠࡋᗘ௨ୗ࡟ࡍࡿࡇ࡜࡜ࡋࠊ680Υ࠾ࡼࡧ 720Υ࡟࠾࠸࡚┿✵୰࡛ 1 ᫬㛫ᐇ᪋ࡋࡓࠋ
㧗 ᘬᙇヨ㦂ࡣࠊࢤ࣮ࢪ㒊ᑍἲ 1.2 mm x 5.0 mm x 0.30 mm ࠾ࡼࡧ 1.2 mm x 5.0 mm x 0.75 mm ࡢᚤᑠᖹᯈヨ㦂∦㸦SS-J ᆺヨ㦂∦㸧ࢆ⏝࠸࡚┿✵୰࡟࠾࠸࡚ᐇ᪋ࡋࡓࠋヨ㦂 ᗘࡣࠊపᨺᑕ໬ࣇ࢙ࣛ࢖ࢺ㗰ࡢ౑⏝ ᗘࢆ⪃៖ࡋ࡚
300Υ࡜ࡋࡓࠋヨ㦂㏿ᗘࡣ 3.3 x 10-4 s-1 ࡛࠶ࡗࡓࠋ
㸬ᐇ㦂⤖ᯝ࡜⪃ᐹ
3㸬
ᅗ 1 ࠾ࡼࡧᅗ 2 ࡟ࠊཷධࢀࡲࡲᮦࠊ
680Υ⇕ฎ⌮ᮦ࠾ࡼࡧ 720Υ⇕ฎ⌮ᮦ࠿ࡽ〇సࡋࡓᯈཌ 0.30 mm ࠾ࡼࡧ 0.75 mm
ࡢ SS-J ᆺヨ㦂∦࡟ࡼࡿᘬᙇヨ㦂⤖ᯝࢆ♧ࡍࠋ᭱኱ᘬᙇᙉࡉ࠾ࡼࡧ 0.2%⪏ຊࡣࠊᯈཌ࡟ࡼࡿ㐪࠸ࡣ↓࠿ࡗࡓࠋࡲࡓࠊ
୍ᵝఙࡧࡣࡤࡽࡘࡁࡀ࠶ࡿࡶࡢࡢࠊᯈཌ࡟ࡼࡿ≉ᚩⓗ࡞ഴྥࡣぢࡽࢀ࡞࠿ࡗࡓࠋ୍᪉ࠊ◚᩿ఙࡧࡣ᫂ࡽ࠿࡟ᯈཌ࡟
ࡼࡿᙳ㡪ࢆཷࡅ࡚࠾ࡾࠊ0.75 mm ࡢヨ㦂∦ࡢ࡯࠺ࡀ⇕ฎ⌮᮲௳࡟㛵ࢃࡽࡎ኱ࡁ࠿ࡗࡓࠋ௨ୖࡢ⤖ᯝ࠿ࡽࠊヨ㦂∦ᯈཌ࡟ࡼࡿ㐪࠸ࡣࠊ᭱኱ᘬᙇᙉࡉ௨㝆ࡢ୙ᆒ୍ኚᙧ࡛ࡢ㐣⛬࡟⌧ࢀࠊ≉ᛶࡢ್࡟ࡣ◚᩿ఙࡧ࡟ࡢࡳኚ໬ࡀ࠶ࡾࠊ௚ࡢ
ᶵᲔ≉ᛶ࡟㐪࠸ࡣぢࡽࢀ࡞࠿ࡗࡓࠋࡘࡲࡾࠊ
ヨ㦂∦ᯈཌ࡟ࡼࡿኚ໬ࡣ᭱኱ᘬᙇᙉࡉ௨๓ࡢᆒ୍ኚᙧᣲື࡟ࡣ↓ࡃࠊࡃࡧࢀኚᙧ௨㝆ࡢ୙ᆒ୍ኚᙧ㣧ࡳ࡟⏕ࡌ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋࡼࡗ࡚ࠊᆒ୍ኚᙧ㡿ᇦ࠿ࡽᚓࡽࢀࡿ 0.2㸣⪏ຊࡸ᭱኱ᘬᙇᙉࡉࠊᆒ୍ఙࡧ࡞࡝ࡢᘬᙇ≉ᛶࡣヨ㦂∦ᯈཌ࡟ᙳ㡪ࡉࢀ࡞࠸࡜ゝ࠼ࡿࠋᯈཌ 0.75mm ࡛ࡢヨ㦂ࡣ෌⌧ᛶࡀⰋ− 122 −

ࡃࠊᯈཌ 0.30mm ࡢヨ㦂ࡣࠊヨ㦂ᶵࡢ⢭ᗘࡸヨ㦂∦ẖࡢᙧ≧ࡢᕪ࡟㉳ᅉࡍࡿ࡜ᛮࢃࢀࡿࡤࡽࡘࡁࡀࡳࡽࢀࡿࡓࡵࠊ
ヨ㦂∦ᙧ≧࡜ࡋ࡚ࡣᯈཌ 0.75mm ࡀ㐺ษ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ
ཧ⪃ᩥ⊩[1] N. Hara, S. Nogami, T. Nagasaka, A. Hasegawa, H. Tanigawa, T. Muroga, Fus. Sci. Tech. 56 (2009) 318-322.
[2] S. Nogami, N. Hara, T. Nagasaka, A. Hasegawa, T. Muroga, Fus. Sci. Tech. 60 (2011) 335-338.

ᅗ 1㸬ᛂຊ-ࡦࡎࡳ᭤⥺㸦ୖẁ㸸⁐᥋ࡲࡲࠊୗẁᕥ㸸680Υ⇕ฎ⌮ᮦࠊୗẁྑ㸸720Υ⇕ฎ⌮ᮦ㸧ᅗ 2㸬୺࡞ᘬᙇ≉ᛶ㸦ୖẁᕥ㸸᭱኱ᘬᙇᙉࡉࠊୖẁྑ㸸0.2%⪏ຊࠊୗẁᕥ㸸୍ᵝఙࡧࠊୗẁྑ㸸◚᩿ఙࡧ㸧㸦ඹྠ◊✲ศ㔝㸸ᩘ⌮ゎᯒᏛศ㔝㸧− 123 −

ࣆ࣮ࢽࣥࢢ࡟ࡼࡿ㗰ᵓ㐀≀ࡢ㛗ᑑ࿨໬ຠᯝ࡟㛵ࡍࡿᇶ♏ⓗ◊✲ி㒔኱Ꮫ኱Ꮫ㝔 ᕤᏛ◊✲⛉ ▼ᕝ ᩄஅࠊᯇᮏ ⌮బ኱㜰኱Ꮫ ᥋ྜ◊ ሐ ᡂ୍㑻㸯㸬┠ⓗ ⑂ປࡁ⿣Ⓨ⏕ࡀᠱᛕࡉࢀࡿ⟠ᡤ࡬ࡢࣆ࣮ࢽࣥࢢฎ⌮ࡣྛ✀㗰ᵓ㐀≀ࡢ㛗ᑑ࿨ᑐ⟇ࡢ୍ࡘ࡜ࡋ࡚ᗈࡃ᥇⏝ࡉࢀ࡚࠸ࡿ㸬୍᪉㸪ࡇࡢຠᯝࡣ≉ᐃࡢᵓ㐀࠾ࡼࡧⲴ㔜᮲௳ୗ࡟࠾
࠸࡚ᐇ㦂ⓗ࡟᫂ࡽ࠿࡟ࡉࢀ࡚࠸ࡿࡶࡢࡢ 㸧㸪ࣆ࣮ࢽࣥࢢ
ẁ㝵࡟࠾ࡅࡿṚⲴ㔜ࡢᙳ㡪ࡸࡑࡢᚋࡢ⧞㏉ࡋⲴ㔜࡟ࡼࡿ

Fig. 1 ᐇ㦂ࡢᴫせᅗṧ␃ᛂຊ⦆࿴ᣲືࡀ⑂ປᑑ࿨࡟୚࠼ࡿᙳ㡪࡟ࡘ࠸࡚ࡣ༑
ศゎ᫂ࡉࢀ࡚࠸࡞࠸㸬ᮏ◊✲ࡣୖグㄢ㢟ࡢඞ᭹ࡢࡓࡵ࡟㗰ᯈୖ࡬ࡢࣆ࣮ࢽࣥࢢฎ⌮࡟㛵ࡍࡿᇶ♏ⓗ࡞ᐇ㦂ࢆ⾜࠺࡜࡜ࡶ࡟ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࡼࡗ࡚ᛂຊࡸ⾲㠃ᙧ≧࠾ࡼࡧᮦᩱ◳໬ࡢኚ໬㸪ࡉࡽ࡟⑂ປⲴ㔜࡟ࡼࡿṧ␃ᛂຊ⦆࿴ᣲ
ື࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓ㸬㸰㸬 ࣆ࣮ࢽࣥࢢᐇ㦂ࡢᴫせ࡜⤖ᯝࣆ࣮ࢽࣥࢢ࡟ࡼࡿ⾲㠃ᙧ≧࠾ࡼࡧṧ␃ᛂຊࡢኚ໬ࢆㄪ

Fig. 2 ⾲㠃ᙧ≧࡜ṧ␃ᛂຊศᕸ

࡭ࡿࡓࡵ࡟ࢱ࢞ࢿࢆ⿦╔ࡋࡓ࢚࢔ࢶ࣮ࣝࢆ⏝࠸࡚㗰ᯈࡢ୰ኸ SRLQW $ ࡟⣙  ⛊㛫᪋ᕤࡍࡿᐇ㦂ࢆ⾜ࡗࡓ㸬㗰ᯈࡣ
60< ᮦࢆ⏝࠸ཌࡉ PP ᯈᖜ PP 㛗ࡉ PP ࡢࡶࡢࢆ㛗ᡭ᪉ྥࡢ୰㛫ࡢⅬ࡛ )LJ ࡢࡼ࠺࡟ᅛᐃࡋ∦ᣢࡕᱱ࡜ࡋࡓ㸬㐣ཤࡢᐇ㦂࠿ࡽ᥎ᐃࡉࢀࡿ࢚࢔ࢶ࣮ࣝࡢᡴᧁຊࡣ
N1 ௨ୖ㸪ᡴᧁᅇᩘࡣ +] ⛬ᗘ࡛࠶ࡿ㸬⾲㠃ࡢṧ␃ᛂຊࡣ ; ⥺ṧ␃ᛂຊ ᐃ⿦⨨ ȣ;38/67(& ࡛ ᐃࡋࡓ㸬
SRLQW$ ࠿ࡽ ; ㍈ 㛗ᡭ ᪉ྥ࡟ἢࡗࡓ⾲㠃ࡢ ; ㍈᪉ྥṧ␃ᛂຊ ௨ୗȪB[ ࡜ࡍࡿ ศᕸ㸪⾲㠃࠾ࡼࡧࢱ࢞ࢿࡢᙧ≧ࢆ

Fig.3 ᮦᩱᵓᡂࣔࢹࣝ

)LJ ࡟♧ࡍ㸬ȪB[ ࡢศᕸࡣ : Ꮠᆺ࡜࡞ࡾ㸪ȪB[ ࡢᅽ⦰᪉ྥࣆ࣮ࢡࡢ኱ࡁࡉࡣ03D ⛬࡛࠶ࡗࡓ㸬ࡲࡓ SRLQW $࡛⣙PP ኚ఩ࡋࡓ㸬㸱ᮦᩱᵓᡂࣔࢹࣝ࡜ᩘ್ゎᯒ
Fig.4 ゎᯒࡢᴫせ࠾ࡼࡧቃ⏺᮲௳㸱㸯 )( ࣔࢹࣝ࡜ゎᯒ᮲௳ඛࡢᐇ㦂ࢆᶍᨃࡋࡓ )(0 ゎᯒࢆ⾜ࡗࡓ㸬࡞࠾㸪)LJ ࡟♧ࡍࡼ࠺࡟ຊᏛⓗࣛࢳ࢙ࢵࢸ࢕ࣥࢢ⌧㇟ࢆ⾲⌧ྍ⬟࡞ᮦᩱࣔࢹࣝ  ࢆ⏝࠸ࡓ㸬)LJ ࡟♧ࡍᖹᯈ SODWH ࡜ࢱ࢞ࢿ FKLVHO๛య ࠿ࡽᵓᡂࡉࢀࡿࣔࢹࣝ ᯈᖜ᪉ྥ  ᑐ⛠ ࡜ࡋ㸪FKLVHO ࡢᙧ≧ࡣィ ⤖ᯝࢆཧ⪃࡟ U PP ࡢ⌫㠃ࢆᗏ㠃࡜ࡍࡿᙧ≧࡜ࡋࡓ㸬ࣆ࣮ࢽࣥࢢ
࡟ࡼࡿⲴ㔜ࡣ SODWH ࡬ࡢᡴᧁຊࢆ N1 ࡜ࡋ࡚ SRLQW& ࡟ 0 N1㺃PP ࡢ᭤ࡆ࣮࣓ࣔࣥࢺࢆ  ᅇ୚࠼ࡓ㸬ࡲࡓ㸪ṚⲴ㔜ࡢ᭷↓࡜ࡑࡢᚋࡢ⑂ປⲴ㔜࡟ࡼࡿᙳ㡪ㄪᰝࡢࡓࡵ㸪7DEOH ࡟♧ࡍྛⲴ㔜ࢣ࣮ࢫࢆྵࡴ඲ ࢣ࣮ࢫ࡟ࡘ࠸࡚ゎᯒࢆ⾜ࡗࡓ㸬ࡑࢀࡒࢀࡢⲴ㔜ࡣ )LJ ࡢ SODQH$ ࡟⧞㏉ࡋ  ᅇ୚࠼ࡓ㸬࡞࠾㸪ᮏゎᯒ࡛ࡣຍ㏿ᗘ࡟ࡼࡿືⓗᙳ㡪ࡸ SODWHFKLVHO 㛫ࡢᦶ᧿࡟ࡼࡿᙳ㡪ࡣ⪃៖ࡋ࡚࠸࡞࠸㸬− 124 −

Dead load, 50
D(MPa)
00DT50-P15-F0
D0-P15-F0

Table.1 Ⲵ㔜ࢣ࣮ࢫߪ
Fatigue load, F (MPa), (R= ௠௜௡ൗߪ௠௔௫ ), N=100180
240
DT50-P15-F180 (0.217)
DT50-P15-F240 (0.172)
D0-P15-F180 (0)D0-P15-F240 (0)300
DT50-P15-F300 (0.143)
D0-P15-F300 (0)㸱㸬㸰 ࣆ࣮ࢽࣥࢢ࡟ࡼࡿ⾲㠃ṧ␃ᛂຊศᕸ
ṚⲴ㔜↓ࡋ࣭ࣆ࣮ࢽࣥࢢᚋࡢ '3) ゎᯒ⤖ᯝࢆ )LJ ࡟♧ࡍ㸬ȪB[ ࡣ : Ꮠᆺ࡟ศᕸࡋᅽ⦰᪉ྥ࡟᭱
኱࡛03D ⛬㸪ᖹᯈ୰ኸ௜㏆࡛ 03D ⛬࡜࡞ࡗࡓ㸬⣼✚ረᛶࡦࡎࡳࡣ 0 Ꮠᆺࡢศᕸࢆ࿊ࡋ㸪ࣆ࣮ࢽࣥࢢ⑞
➃㒊࡟࠾࠸࡚⣙ 㸣࡛࠶ࡗࡓ㸬ࡇࢀࡼࡾ㸪⾲㠃࡟࠾࠸࡚ࡣࡇࡢ㡿ᇦ࡛ᮦᩱ◳໬ࡀ㉳ࡇࡗࡓࡇ࡜ࡀࢃ࠿ࡿ㸬㸱㸬㸱 ṚⲴ㔜࣭⑂ປⲴ㔜࡟ࡼࡿ⾲㠃ṧ␃ᛂຊࡢኚ໬
ṚⲴ㔜ࡀ 03D ࡢゎᯒ⤖ᯝࢆ )LJ ࠾ࡼࡧ  ࡟♧ࡍ㸬)LJ ࡣ⑂ປⲴ㔜㍕Ⲵ๓࡟ȪB[ ࡀ᭱኱࡛࠶ࡗࡓ⠇Ⅼᛂຊࡢࡑࡢᚋࡢ᫬㛫ኚ໬㸪)LJ ࡣᶓ㍈࡟᭱኱Ⲵ㔜

fig.5 ࣆ࣮ࢽࣥࢢ࿘㎶࡟࠾ࡅࡿゎᯒ⤖ᯝ⑂ປⲴ㔜ࡢ᭱኱್࡜ṚⲴ㔜ࡢྜィ 㸪⦪㍈࡟⑂ປⲴ㔜㍕ⲴᚋࡢȪB[ ࢆ㍕Ⲵ๓ࡢ್࡛ṇつ໬ࡋࡓࡶࡢࢆ♧ࡋࡓࢢࣛࣇ࡛࠶ࡿ㸬)LJ ࡟ࡣṚⲴ㔜ࢆ 03Dస⏝ࡉࡏࡓィ⟬⤖ᯝࡶຍ࠼࡚࠸ࡿ㸬ࡇࢀࡼࡾ㸪᭱኱Ⲵ㔜 03D ⛬࠿ࡽ⑂ປⲴ㔜࡟ࡼࡿᅽ⦰ṧ␃ᛂຊࡢ⦆࿴
ࡀጞࡲࡾ㸪03D ⛬࡛⣙ 㸪03D ௨ୖ࡛ࡣᅽ⦰ṧ␃ᛂຊࡀᾘኻࡍࡿࢣ࣮ࢫࡀᏑᅾࡍࡿࡇ࡜ࡀࢃ࠿ࡿ㸬㸲㸬 ⤖ゝᮏ◊✲࡛ࡣࣆ࣮ࢽࣥࢢฎ⌮ᐇ㦂ࢆ⾜࠺࡜࡜ࡶ࡟ྠ

fig.6 ṧ␃ᛂຊࡢ᫬⣔ิኚ໬᮲௳ࢆᶍᨃࡋࡓᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡾᛂຊ≧ែࡸ⾲㠃ᙧ≧ࡢኚ໬࡟ࡘ࠸࡚ࡢㄪᰝࢆ⾜ࡗࡓ㸬ࡑࡢ⤖ᯝ㸪ࣆ࣮ࢽࣥࢢ࡟ࡼࡿ⾲㠃ᙧ≧㸪ṧ␃ᛂຊศᕸ
࠾ࡼࡧᮦᩱ◳໬ࡢศᕸࡢኚ໬ࢆᩘ್ゎᯒⓗ࡟෌⌧ࡋࡓ㸬௒ᅇࡢ᮲௳࡛ࡣ᭱኱Ⲵ㔜 03D ⛬࠿ࡽȪB[ ࡢ⦆࿴ࡀጞࡲࡿࡇ࡜ࢆ♧ࡋࡓ㸬௒ᚋ㸪ṚⲴ㔜᮲௳ୗࡢࣆ࣮ࢽࣥࢢຠᯝࡸᮦᩱ◳໬࡜ṧ␃ᛂຊ⦆࿴ᣲືࡀ⑂ປᑑ࿨࡟ᑐࡋ࡚࡝ࡢࡼ࠺࡞
ᙳ㡪ࢆ୚࠼ࡿࡢ࠿࡟ࡘ࠸࡚ࡉࡽ࡟◊✲ࢆ㐍ࡵࡿᚲせfig.7 ṧ␃ᛂຊࡢṧᏑ⋡ศᕸ

ࡀ࠶ࡿ㸬



         㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶタィᏛศ㔝㸧− 125 −

⑂ປᑑ࿨ホ౯ᡭἲࡢ㧗ᗘ໬㸦ከ㍈㈇Ⲵ࡟࠾ࡅࡿ⑂ປᙉᗘ≉ᛶࡢホ౯࡜ࣔࢹࣝ໬㸧❧࿨㤋኱Ꮫ ⌮ᕤᏛ㒊ఀ⸨ 㝯ᇶ㸯㸬┠ⓗᐇാ⎔ቃୗ࡟࠾ࡅࡿྛ✀ᵓ㐀≀ࡢ⑂ປᑑ࿨ࢆ㧗⢭ᗘ࡟ண ࡍࡿࡓࡵ࡟ࡣ㸪⧞㏉ࡋከ㍈ᛂຊሙ࡟࠾ࡅࡿኚᙧゎᯒࡢ㧗ᗘ໬ࡀᚲせ࡛࠶ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ᚑ᮶ࡢྂ඾ᙎረᛶㄽࡢࡼ࠺࡞㠀ᙎᛶኚᙧࣔࢹ࡛ࣝࡣ」㞧࡞㈇Ⲵ࡟࠾ࡅࡿኚ
ᙧᣲືࢆ༑ศ࡟෌⌧࡛ࡁ࡞࠸㸬ࡑࡇ࡛㸪ᛂຊ࣭ࡦࡎࡳࡢ୺㍈᪉ྥࡀኚ໬ࡍࡿከ㍈⧞㏉ࡋ㈇Ⲵ࡟࠾ࡅࡿᶵᲔᵓ㐀ᮦᩱ࠾ࡼࡧ᥋ྜᮦᩱࡢኚᙧ࣭◚ቯ≉ᛶࢆᐇ㦂ⓗ࡟᫂ࡽ࠿࡟ࡋ㸪ᦆയࡢ࣓࢝ࢽࢬ࣒ࡢゎ᫂࠾ࡼࡧᙉᗘホ౯ᡭἲࡢ㛤Ⓨࢆ⾜࠺࡜࡜ࡶ࡟㸪ከ㍈㈇Ⲵ࡛ࡢ⧞㏉ࡋኚᙧ࡟ࡶᑐᛂࡋᚓࡿ㠀ᙎᛶኚᙧࣔࢹࣝࡢᵓ⠏ࢆ┠ⓗ࡜ࡍࡿ㸬ᖹᡂ 26 ᖺᗘ࡛ࡣ㸪ୖ㏙ࡢඹྠ◊✲ࢆ㛤ጞࡍࡿ࡟࠶ࡓࡾ㸪ᐇ㦂⎔ቃࡢᩚഛ࠾ࡼࡧᚓࡽࢀࡓᐇ㦂ࢹ࣮ࢱࡢ㠀ᙎᛶኚᙧࣔࢹࣝࡢ᳨ド࡟ᑐࡍࡿ᭷ຠᛶࢆุ᩿ࡍࡿࡇ࡜࡟࠶ࡿ㸬㸰㸬◊✲᪉ἲ
ヨ㦂࡟⏝࠸ࡓ⑂ປヨ㦂⿦⨨ࡣ㸪ᅗ 1 ࡟♧ࡍ୰✵෇⟄ヨ㦂∦࡟㍈㈇Ⲵ࡜ࡡࡌࡾ㈇Ⲵࢆྠ᫬ୟࡘ⊂❧࡟㈇Ⲵࡍࡿࡇ
࡜ࡢ࡛ࡁࡿ㟁ẼἜᅽࢧ࣮࣎ᘧ㍈࣭ࡡࡌࡾከ㍈⑂ປヨ㦂⿦⨨࡛࠶ࡿ㸬ヨ㦂⿦⨨ࡢᴫほࢆᅗ 2 ࡟♧ࡍ㸬ᮏヨ㦂⿦⨨࡛ࡣ㸪㍈Ⲵ㔜࡜ࢺࣝࢡࢆィ ࡍࡿ஧ࡘࡢ࣮ࣟࢻࢭࣝࢆഛ࠼࡚࠸ࡿ㸬ࡲࡓ㸪ヨ㦂∦ᶆⅬ㒊ࡢ㍈᪉ྥ࡜ࡡࡌࡾ᪉ྥࡢኚ఩ࢆィ ࡍࡿࡓࡵࡢఙࡧィࢆ᭷ࡋ࡚࠸ࡿ㸬࣮ࣟࢻࢭࣝࡲࡓࡣఙࡧィ࠿ࡽ᳨ฟࡉࢀࡿ㟁Ẽಙྕࢆࢧ࣮࣎ࢥࣥࢺ࣮ࣟࣛ
࡬ࡢࣇ࢕࣮ࢻࣂࢵࢡ࡟㑅ᢥࡍࡿࡇ࡜࡟ࡼࡗ࡚Ⲵ㔜ไᚚࡲࡓࡣኚ఩ไᚚࡢヨ㦂ࢆᐇ᪋ࡍࡿࡇ࡜ࡀ࡛ࡁࡿ㸬౪ヨᮦࡣ⁐᥋ᵓ㐀⏝ᅽᘏᮦࡢ SM490A 㗰ࢆᑐ㇟࡟㸪ᅗ 1 ࡟♧ࡋࡓ୰✵෇⟄ヨ㦂∦࡟㍈㈇Ⲵ࡜ࡡࡌࡾ㈇ⲴࢆⲴ㔜ไᚚ࡛௜୚ࡋࡓ㸬ࡑࡢヨ㦂㈇Ⲵࡢ㈇Ⲵ⤒㊰㸦㍈ᛂຊ㸦Ȫ㸧㸫ࡏࢇᛂຊ㸦ȫ㸧ᅗ㸧࠾ࡼࡧ㈇ⲴἼᙧ㸦Ȫ, ȫ㸫᫬㛫㸦㹲㸧ᅗ㸧ࢆࡑࢀࡒࢀᅗ 3(a)࠾ࡼࡧ(b)࡟♧ࡍ㸬ᮏ㈇Ⲵ࡛ࡣ㸪Ȫࢆ 50㸪100 ࠾ࡼࡧ 150MPa ࡜ẁ㝵ⓗ࡟ቑຍࡉࡏ㸪ྛẁ㝵࡛Ȫ୍ᐃࡢ≧ែ࡛∦᣺ࡾࡢȫࢆ୚࠼ࡓ㸬ࡑࡢȫࡢ᣺ᖜࡣ㸪25㸪50 ࠾ࡼࡧ 100MPa ࡢ 3 ᮲௳࡜ࡋࡓ㸬ࡲࡓ㸪ࡦࡎࡳࡢᐃ࡟ࡣ㸪ᅗ 2 ࡟♧ࡋࡓఙࡧィ࡜ࡣู࡟ヨ㦂∦ᶆⅬ㒊࡟ 3 ㍈ࡦࡎࡳࢤ࣮ࢪ㸦ࣟࢮࢵࢺࢤ࣮ࢪ㸧࡛ࡶ⾜ࡗࡓ㸬㸱㸬⤖ᯝ ᅗ 4(a)࠾ࡼࡧ(b)ࡣࡡࡌࡾ 25MPa ࡢȪ㸫ȫࡢᛂຊ⤒㊰ᅗ࠾ࡼࡧȪ㸪ȫ㸫㹲ࡢᛂຊἼᙧᅗࢆ♧ࡍ㸬ࡇࡢ⤖ᯝ࠿ࡽ㸪
ᅗ 3 ࡟♧ࡋࡓヨ㦂᮲௳ࡢ㈇Ⲵࡀ෌⌧ࡉࢀ࡚࠾ࡾ㸪ࡍ࡭࡚ࡢ᮲௳࡟࠾࠸࡚ไᚚྍ⬟࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬 ᅗ 5 ࠾ࡼࡧᅗ 6 ࡟ఙࡧィ࠾ࡼࡧࡦࡎࡳࢤ࣮ࢪ࡛ィ ࡋࡓ⤖ᯝࢆ♧ࡍ㸬(a)࠾ࡼࡧ(b)ࡣࡑࢀࡒࢀࡢȜ㸫Țࡢࡦࡎࡳ⤒㊰ᅗ࠾ࡼࡧȜ࣭Ț㸫㹲ࡢࡦࡎࡳἼᙧ࡛࠶ࡿ㸬࡞࠾㸪࣮࣌ࢪࡢ㒔ྜୖ⾲♧ࡍࡿᅗࡣࡡࡌࡾࡀ 25MPa ࡢ⤖ᯝࡢࡳ࡜ࡍࡿ㸬ᅗ 5 ࡟♧ࡍఙࡧィ࡛ィ ࡋࡓ⤖ᯝ࡛ࡣィ ࢹ࣮ࢱಙྕࡢࣀ࢖ࢬ࡟㉳ᅉࡍࡿࢹ࣮ࢱࡢࡤࡽࡘࡁࡀぢࡽࢀࡿ㸬ࡇࢀࡣఙࡧィࡢࢭࣥࢧ࣮࠾ࡼࡧ࢔ࣥࣉ⢭ᗘࡢᶵჾࡢ௙ᵝ࡟ࡼࡿࡶࡢ࡛㸪ࡑࢀࢆゎᾘࡍࡿ࡟ࡣูࡢᶵჾ࡟ྲྀࡾ᭰࠼ࡓ
ࡾࣇ࢕ࣝࢱ࣮ࢆタࡅࡓࡾࡍࡿᚲせࡀ࠶ࡾ㸪⌧≧ࡢࡲࡲ࡛ࡣᐇ㦂ࢹ࣮ࢱࢆゎᯒ࡟⏝࠸ࡿࡇ࡜ࡀ࡛ࡁ࡞࠸㸬୍᪉㸪ᅗ 6࡟♧ࡍࡦࡎࡳࢤ࣮ࢪ࡟ࡼࡿィ ࡋࡓ⤖ᯝ࡛ࡣᅗ 5 ࡢࡼ࠺࡞ࢹ࣮ࢱࡢࡤࡽࡘࡁࡣ☜ㄆࡉࢀࡎ㸪ࡦࡎࡳࢤ࣮ࢪ࡟ࡼࡿ
ࡦࡎࡳࢹ࣮ࢱࡣゎᯒࢹ࣮ࢱ࡜ࡋ࡚᭷ຠ࡛࠶ࡿ࡜ุ᩿ࡉࢀࡿ㸬ࡓࡔࡋ㸪⏝࠸ࡓࡦࡎࡳࢤ࣮ࢪࡣ୍⯡ⓗ࡞ࡦࡎࡳࢤ࣮ࢪ
࡛࠶ࡾࡑࡢィ 㝈⏺ࡢࡦࡎࡳࡀ⣙ 5㸣࡛࠶ࡿࡢ࡛㸪ࡑࢀ௨ୖࡢࡦࡎࡳࢆィ ࡍࡿሙྜࡣረᛶࡦࡎࡳࢤ࣮ࢪࢆ౑⏝ࡍࡿᚲせࡀ࠶ࡿ㸬㸲㸬⤖ㄽ ከ㍈⑂ປヨ㦂⿦⨨ࡢᩚഛ࠾ࡼࡧᨵⰋࢆ⾜࠸㸪㠀ᙎᛶኚᙧࣔࢹࣝࡢ᳨ド࡟౑⏝ࡋᚓࡿᐇ㦂ࢹ࣮ࢱࡢྲྀᚓࡀྍ⬟࡜࡞ࡗࡓ㸬㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶタィᏛศ㔝㸧− 126 −Stress V, MPa
Shear stress W, MPa

400

40

StressShear stress

㻌

300

30

200

20
10

100

0
0

0
100
200
300
400
0
20
40
60
80
Stress V, MPa
Time t, s(a) ㍈ᛂຊ࡜ࡏࢇ᩿ᛂຊࡢ⤒㊰ᅗ    (b) ᫬้࡜㍈ᛂຊ࣭ࡏࢇ᩿ᛂຊࡢἼᙧᅗShear strain J, %0.06

ᅗ 4 ᛂຊ࠾ࡼࡧࡏࢇ᩿ᛂຊࡢ᫬้Ṕ
0.4

Strain H, %Shear strain J, %

ᅗ 1 ヨ㦂∦ᙧ≧(mm)

Shear stress

W, MPa(b) ᫬้࡜ᛂຊ࣭ࡏࢇ᩿ᛂຊࡢ㛵ಀ(a) ㍈ᛂຊ࡜ࡏࢇ᩿ᛂຊࡢ㛵ಀ
ᅗ 3 ヨ㦂᮲௳
500
50

0.03

0

-0.03
0

0.1
0.2
Strain H, %

0.3

0.3

㻌

StrainShear strain

0.2
0.1
0

-0.1
0

Strain H, %Shear strain J, %

ᅗ 2 ヨ㦂⿦⨨ᴫほShear strain J, %

40
60
80
Time t, s(a) ࡦࡎࡳ࡜ࡏࢇ᩿ࡦࡎࡳࡢ⤒㊰ᅗ (b) ᫬้࡜ࡦࡎࡳ࣭ࡏࢇ᩿ࡦࡎࡳࡢἼᙧ
ᅗ 5 ఙࡧィ࡟ࡼࡿࡦࡎࡳ࡜ࡏࢇ᩿ࡦࡎࡳࡢ᫬้Ṕ
0.4
0.06

0.03

0

-0.03
0

0.1
0.2
Strain H, %

0.3

0.3

20

㻌

StrainShear strain

0.2
0.1
0

-0.1
0

20

40
60
80
Time t, s(a) ࡦࡎࡳ࡜ࡏࢇ᩿ࡦࡎࡳࡢ⤒㊰ᅗ  (b) ᫬้࡜ࡦࡎࡳ࣭ࡏࢇ᩿ࡦࡎࡳࡢἼᙧ
ᅗ 6 ࡦࡎࡳࢤ࣮ࢪ࡟ࡼࡿࡦࡎࡳ࡜ࡏࢇ᩿ࡦࡎࡳࡢ᫬้Ṕ− 127 −

ⷧᯈ㗰ᯈࡢࢫ࣏ࢵࢺ⁐᥋㒊࡟࠾ࡅࡿ⑂ປᑑ࿨ࡢホ౯࡟ࡘ࠸࡚
㛗ᓮ኱Ꮫ ኱Ꮫ㝔 ຾⏣ 㡰୍ࠊᑠᐑ ㈼ኴ
኱㜰኱Ꮫ ᥋ྜ◊ ሐ ᡂ୍㑻㸯㸬┠ⓗ
 ㍍㔞໬ࡢࡓࡵ࡟⮬ື㌴እᯈࡶᙉᗘ㒊ᮦ࡜ࡋ࡚⪃៖ࡉࢀࡿࡼ࠺࡟࡞ࡾ㸪」ᩘࡢ㗰✀ࢆ㐺⏝ࡍࡿࡼ࠺࡟࡞ࡗ࡚㸪ࡇࢀࡽࡢ㗰ᮦࡢ㉮⾜୰ࡢኚືⲴ㔜࡟ࡼࡿ⑂ປᙉᗘࢆᢕᥱࡋ࡚࠾ࡃࡇ࡜ࡶタィୖ㔜せ࡞ㄢ㢟࡜࡞ࡗ࡚࠸ࡿ㸬ࢫ࣏ࢵࢺ⁐᥋⥅ᡭ࡟࠾ࡅࡿ⑂ປヨ㦂ࡣ㸪ヨ㦂∦࡟ࡏࢇ᩿⧞㏉ࡋⲴ㔜ࢆ୚࠼ࡿሙྜ࡜㸪༑Ꮠᙧ≧ࡢヨ㦂∦ࢆ㠃እ࡟⧞㏉ࡋⲴ㔜ࢆ୚࠼ࡿሙྜ࡟ࡘ࠸࡚ࡣ㸪-,6 ࡟ࠕࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢ⑂ࢀヨ㦂᪉ἲࠖ࡜ࡋ࡚つᐃࡉࢀ࡚࠸
ࡿࡶࡢࡢ㸪◚ุ᩿ᐃ࡟ࡘ࠸࡚ࡣ୙᫂☜࡛㸪ࢫ࣏ࢵࢺ⁐᥋㒊෇࿘㒊ࢆ⑂ປட⿣ࡀఏ᧛ࡋ࡚࣎ࢱࣥᆺࡢ◚ቯࢆࡋ࡚ヨ㦂ᶵࡀ೵Ṇࡍࡿࡲ࡛ࢆ⑂ປᑑ࿨࡜ࡉࢀ࡚࠸ࡿሙྜࡀ࠶ࡿࡼ࠺࡛࠶ࡿ㸬ࡇࡢࡼ࠺࡞ᑑ࿨ุᐃ࡛ࡣ㸪ࢫ࣏ࢵࢺ⁐᥋㒊ࢼࢤࢵࢺෆഃ࠿ࡽⓎ⏕ࡋࡓ⑂ປட⿣ࡀᯈ⾲㠃࡟㈏㏻ࡋ㸪෇࿘㒊ࢆఏ᧛ࡋ࡚࣎ࢱࣥᆺࡢ◚ቯࢆࡍࡿሙ
ྜ㸪ࢼࢤࢵࢺ෇࿘㒊࠿ࡽఏ᧛ᚋヨ㦂∦ᯈᖜ᪉ྥ࡟ఏ᧛ࡍࡿሙྜ㸪ࢼࢤࢵࢺෆ㒊࡟㐍ᒎᚋ㸪㏵୰࡛ᯈ⾲㠃࡟㈏㏻ࡍࡿሙྜ㸪ࢼࢤࢵࢺࡀ᏶඲࡟๤㞳ࡍࡿሙྜ࡞࡝㸪⑂ປᑑ࿨࡜ุᐃࡉࢀࡿࡲ࡛ࡢட⿣ఏ᧛⤒㊰ࡸ㍕Ⲵࡋࡓᛂຊ⠊ᅖࡢ኱ࡁࡉ࡟ࡼࡗ࡚ࡶ㸪⑂ປᑑ࿨࡟ᕪ␗ࡀ⌧ࢀࡿ㸬ᮏሗ࿌࡛ࡣ㸪ఙࡧᛶ⬟ࡢ␗࡞ࡿ  ✀㢮ࡢⷧᯈ㌾㗰ࢆࢫ࣏ࢵࢺ⁐᥋ࡋࡓ⁐᥋⥅ᡭࡢ⑂ປᙉᗘ࡟࠾ࡼࡰࡍ㗰ᮦࡢఙࡧᛶ⬟ࡢᙳ㡪࡟ࡘ࠸࡚ㄪᰝࡋࡓ㸬ᮏሗ࿌࡟࠾ࡅࡿ⑂ປᑑ࿨ุᐃࡣ㸪࠿ࡘ࡚ⴭ⪅ࡽࡀ⁐᥋⥅ᡭ࠿ࡽⓎ⏕ࡍࡿ⑂ປட⿣ࡢࣔࢽࢱࣜࣥࢢ࡟⏝࠸ࡓࡦࡎࡳపୗ⋡ࢆ⏝࠸࡚㸪㸣'URS ἲ࡟ࡼࡿุᐃࢆ⏝࠸ࡓ㸬࡞࠾㸪೺඲࡞ࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢࡦࡎࡳ᣺ᖜ࠿ࡽࡦࡎࡳ⠊ᅖࡀ 㸣పୗࡋࡓ᫬Ⅼ࡛㸪⑂ປட⿣ࡀࢼࢤࢵࢺ෇࿘㒊ࢆఏ᧛ࡋ㸪ᯈ⾲㠃࡟㈏㏻┤๓࡛࠶ࡿ࠿㸪ࢼࢤࢵࢺෆ㒊࡟⑂ປட⿣ࡀ㐍ᒎࡋ࡚࠸ࡿ≧ἣ࡟࠶ࡿࡇ࡜ࢆ㸪஦๓ࡢ⑂ປヨ㦂࡛☜ㄆࡋࡓ㸬
㸰㸬౪ヨ㗰ᯈ࡜ヨ㦂∦ᙧ≧㸪ཬࡧヨ㦂᮲௳౪ヨࡋࡓ㗰ᯈࡣ㸪-,6*෭㛫ᅽᘏ㗰ᯈཬࡧ㗰ᖏ࡛つᐃࡉࢀࡓ୍⯡⏝㌾㗰㸦63&&㸧࡜῝⤠ࡾ⏝㌾㗰㸦63&(㸧ࡢᕷ㈍ࡉࢀ࡚࠸ࡿ㗰ᮦ࡛㸪ඹ࡟ᯈཌ  ੈ࡛࠶ࡿ㸬࡞࠾㸪ࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡣ㸪-,6= ࡟つᐃࡉࢀ࡚࠸
ࡿࡼ࠺࡟㸪ࢫ࣏ࢵࢺ⁐᥋㒊࡟ᑐࡋ࡚ᘬᙇࡏࢇ᩿ຊࡀస⏝ࡍࡿሙྜ࡜㸪༑Ꮠᆺヨ㦂∦஺ᕪ㒊ࡢࢫ࣏ࢵࢺ⁐᥋㒊࡟ᑐࡋ࡚ᘬᙇຊࡀస⏝ࡍࡿሙྜ࡟ࡘ࠸࡚㸪⑂ປヨ㦂ࢆ⾜ࡗࡓ㸬ࡲࡓ㸪ࡑࢀࡒࢀࡢ⁐᥋⥅ᡭ࡟ࡣ㸪㸯ࡘࡢࢫ࣏ࢵࢺ⁐᥋ࢆࡋࡓሙྜ࡜  ࡘࡢࢫ࣏ࢵࢺ⁐᥋ࢆࡋࡓሙྜ࡟ࡘ࠸࡚⑂ປヨ㦂ࡋࡓ㸬㸱㸬ࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢ⑂ປᙉᗘ
ࡏࢇ᩿ᆺࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢ⑂ປヨ㦂⤖ᯝࢆ㸪)LJ ࡟♧ࡍ㸬࡞࠾㸪ࡇࡢᅗ࡟ࡣ㸪ࡑࢀࡒࢀࡢ㗰✀࡟  ⟠ᡤ࡟ࢫ࣏ࢵࢺ⁐᥋ࡋࡓሙྜ࡜㸪Ⲵ㔜㍈࡟ᑐࡋ࡚┤ิ࡟  ⟠ᡤࢫ࣏ࢵࢺ⁐᥋ࡋࡓሙྜࢆ♧ࡋ࡚࠶ࡿ㸬࡞࠾㸪ࡇࡢᅗࡢ⦪㍈ࡣ㸪㍕ⲴࡋࡓⲴ㔜⠊ᅖ࡛♧ࡋ࡚࠶ࡿ㸬ࡇࡢᅗ࠿ࡽ㸪ࡏࢇ᩿ຊࡀ⧞㏉ࡋస⏝ࡍࡿሙྜࡢ⑂ປᙉᗘࡣ㸪 ࡘࡢࢫ࣏ࢵࢺ⁐᥋ࡋࡓ⥅ᡭ࡯࠺ࡀ  ࡘࡢࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢ࡯ࡰ  ಸ࡟࡞ࡗ࡚࠾ࡾ㸪༢⣧࡟ࢫ࣏ࢵࢺ⁐᥋ࡢᩘࡢಸᩘ࡟࡞ࡗ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ㸬ࡲࡓ㸪㗰ᮦࡢఙࡧࡢᙳ㡪࡟ࡘ࠸࡚ࡣ㸪ఙࡧࡢᑠࡉ࠸㗰ᮦࡢ࡯࠺ࡀ኱ࡁࡃ࡞ࡗ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬⑂ປᑑ࿨ࡣ㸪 ࡘࡢࢫ࣏ࢵࢺ⁐᥋ࡋࡓ⥅ᡭ࡯࠺ࡀ  ࡘࡢࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢᩘ༑ಸ௨ୖ࡟࡞ࡗ࡚࠾ࡾ㸪≉࡟῝⤠ࡾ⏝㗰ᮦ࡟ࡘ࠸࡚ࡣ㸪 ಸ㏆࠸ᑑ࿨࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࢫ࣏ࢵࢺ⁐᥋㒊ࡢ⑂ປ◚ቯᙧែࡣ㸪㧗ᛂຊࡢ୍㒊ࡢヨ㦂⤖ᯝ࡟࠾࠸࡚ࢼࢤࢵࢺࡀ᏶඲࡟๤㞳◚ቯࡋ࡚࠸ࡿ
ࡶࡢࡢ㸪࡯࡜ࢇ࡝ࡣ࣎ࢱࣥᆺࡢ◚ቯ࡛࠶ࡗࡓ㸬ࡓࡔࡋ㸪పᛂຊࡢヨ㦂⤖ᯝ࡟ࡣ㸪ࢼࢤࢵࢺ࡟Ⓨ⏕ࡋࡓ⑂ປட
⿣ࡀヨ㦂∦ᯈཌ㈏㏻ᚋ࣎ࢱࣥᆺࡢ◚ቯ࡜࡞ࡽࡎ㸪ᯈᖜ᪉ྥ࡟㐍ᒎࡋࡓࡶࡢࡀ࠶ࡗࡓ㸬

− 128 −


)LJ)DWLJXHWHVWUHVXOWVLQWKHFDVHRIVKHDUW\SHVSHFLPHQV)LJ)DWLJXHWHVWUHVXOWVLQWKHFDVHRIWHQVLOHW\SHVSHFLPHQVᘬᙇᆺࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢ⑂ປヨ㦂⤖ᯝࢆ㸪)LJ ࡟♧ࡍ㸬࡞࠾㸪ࡇࡢᅗ࡟ࡣ㸪ࡑࢀࡒࢀࡢ㗰✀࡟࠾࠸࡚㸪 ⟠ᡤ࡟ࢫ࣏ࢵࢺ⁐᥋ࡋࡓሙྜ࡜㸪 ⟠ᡤࢫ࣏ࢵࢺ⁐᥋ࡋࡓሙྜࢆ♧ࡋ࡚࠶ࡿ㸬࡞࠾㸪ࡇࡢᅗࡢ⦪㍈ࡣ㸪㍕ⲴࡋࡓⲴ㔜⠊ᅖ࡛♧ࡋ࡚࠶ࡿ㸬ࡇࡢᅗ࠿ࡽ㸪ᘬᙇຊࡀ⧞㏉ࡋస⏝ࡍࡿሙྜࡢ⑂ປᙉᗘࡣ㸪 ࡘࡢࢫ࣏ࢵࢺ⁐᥋ࡋࡓ⥅ᡭ࡯࠺ࡀ  ࡘࡢࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢ࡯ࡰ  ಸ࡟࡞ࡗ࡚࠾ࡾ㸪༢⣧࡟ࢫ࣏ࢵࢺ⁐᥋ࡢᩘࡢಸᩘ࡟࡞ࡗ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ㸬ࡲࡓ㸪⑂ປᙉᗘ࡬ࡢ㗰ᮦࡢఙࡧࡢᙳ㡪࡟ࡘ࠸࡚ࡣ㸪࡯࡜ࢇ࡝ᕪ␗ࡣㄆࡵࡽࢀ࡞࠸㸬⑂ປᑑ࿨࡟ࡘ࠸࡚ࡶ㸪 ࡘࡢࢫ࣏ࢵࢺ⁐᥋ࡋࡓ⥅ᡭ࡯࠺ࡀ  ࡘࡢࢫ࣏ࢵࢺ⁐᥋⥅ᡭࡢ࡯ࡰ  ಸ࡟࡞ࡗ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡲࡓ㸪⑂ປᑑ࿨࡬ࡢ㗰ᮦࡢఙࡧࡢᙳ㡪࡟ࡘ࠸࡚ࡣ㸪࡯࡜ࢇ࡝ᕪ␗ࡣㄆࡵࡽࢀ࡞࠸㸬㸲㸬⤖  ゝᮏሗ࿌࡛ࡣ㸪ᘬᙇࡏࢇ᩿⧞㏉ࡋⲴ㔜ࡀస⏝ࡍࡿሙྜ࡜ᘬᙇ⧞㏉ࡋⲴ㔜ࡀస⏝ࡍࡿሙྜ࡟ࡘ࠸࡚㸪ࢫ࣏ࢵࢺ⁐᥋ࢆ  ⟠ᡤタࡅࡓሙྜ࡜  ⟠ᡤタࡅࡓሙྜ㸪㗰✀ࡣ୍⯡⏝㌾㗰࡜῝⤠ࡾ⏝㌾㗰࡟ࡘ࠸࡚㸪⑂ປᙉᗘࡸ⑂ປ
ᑑ࿨ࡢẚ㍑ࢆ⾜ࡗࡓ㸬ࡑࡢ⤖ᯝ㸪㗰ᮦࡢఙࡧᛶ⬟࡟ࡼࡾ㸪⑂ປᑑ࿨࡟ᕪ␗ࡀ⏕ࡌࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬         㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶタィᏛศ㔝㸧− 129 −

࣮ࣞࢨ࣭࢔࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋ἲࡢ⯪యᘓ㐀ᕤ⛬㐺⏝࡟ྥࡅࡓᇶ♏᳨ウ̿ ྠ⁐᥋ἲ࡟ࡼࡾ〇సࡉࢀࡓ᏶඲⁐ࡅ㎸ࡳ T ⥅ᡭ࡟⏕ࡌࡿ⁐᥋ṧ␃ᛂຊࡢィ  ̿஑ᕞ኱Ꮫ ኱Ꮫ㝔ᕤᏛ◊✲㝔 ᾏὒࢩࢫࢸ࣒ᕤᏛ㒊㛛ᚋ⸨ᾈ஧࣭ᮧୖᖾ἞࣭ὠᮧ⚽୍኱㜰኱Ꮫ ᥋ྜ⛉Ꮫ◊✲ᡤ ሐᡂ୍㑻㸯㸬◊✲⫼ᬒ࡜┠ⓗ ࣮ࣞࢨ࣭࢔࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋㸦௨㝆࡛ࡣ༢࡟ࣁ࢖ࣈࣜࢵࢻ⁐᥋࡜⛠ࡍࡿ㸧ࡣ㸪࣮ࣞࢨ⁐᥋࡜࢔࣮ࢡ⁐᥋ࡢ୙฼Ⅼࢆゎᾘࡋ┦஫ࡢ฼Ⅼࢆᚓࡿࡇ࡜ࡀྍ⬟࡞⁐᥋᪉ἲ࡛࠶ࡾ㸪ᚑ᮶ࡢ࢔࣮ࢡ⁐᥋ἲ࡜ẚ࡭࡚⁐᥋ධ⇕ࡀᑠࡉ࠸ࡓࡵ⁐᥋ኚᙧࡸ⁐᥋㒊ࡢᮦ㉁ຎ໬ࢆᢚไ࡛ࡁࡿ㧗ရ㉁࣭㧗⢭ᗘࡢ⁐᥋ᢏ⾡࡛࠶ࡿ㸬ࣁ࢖ࣈࣜࢵࢻ⁐᥋ࢆ⏝࠸࡚⁐᥋᪋ᕤࡍࡿ࡜㸪㒊ᮦᯈཌḟ➨࡛ࡣ㸪ᚑ᮶ࡢ࢔࣮ࢡ⁐᥋࡛〇సࡉࢀࡓࡍࡳ⫗⁐᥋⥅ᡭࢆᙉᗘ㠃࡛ඃ఩࡞᏶඲⁐㎸ࡳ⁐᥋⥅ᡭ࡬⨨ࡁ᥮࠼ࡿࡇ࡜ࡶྍ⬟࡛࠶ࡾ㸪⁐᥋ᵓ㐀≀ࡢ㍍㔞໬࡟㈨ࡍࡿࡇ࡜ࡶᮇᚅࡉࢀࡿ㸬ຍ࠼࡚㸪࣮ࣞࢨࡢ㧗ฟຊ໬ࡀ㐍ࡴ࡜ඹ࡟ࡑࡢⓎ᣺ຠ⋡ࡶྥୖࡋ࡚࠾ࡾ㸪ඃࢀࡓࣅ࣮࣒ရ㉁ࡢ㧗ฟຊ࣮ࣞࢨࡀ
ᚑ᮶ࡼࡾࡶᏳ౯࡛฼⏝ྍ⬟࡜࡞ࡾࡘࡘ࠶ࡾ㸪ࣁ࢖ࣈࣜࢵࢻ⁐᥋ࡢཌᯈ㗰ᯈ࡬ࡢ㐺⏝࡟ࡼࡿ㧗㏿࣭㧗ຠ⋡⁐᥋ࡢᐇ⏝໬ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬 ࣁ࢖ࣈࣜࢵࢻ⁐᥋ࢆ㐀⯪ศ㔝࡬㐺⏝ࡍࡿࡓࡵࡢᴗ⏺ඹྠ◊✲࡜ࡋ࡚㸪2012㹼2013 ᖺᗘ࡟㸦୍㈈㸧᪥ᮏ⯪⯧ᢏ⾡◊✲༠఍࡟࠾࠸࡚ࠕ⯪⯧ᘓ㐀㧗ရ㉁໬࣭ຠ⋡໬ᢏ⾡ࡢࡓࡵࡢㄪᰝ◊✲ 1)ࠖࡀᐇ᪋ࡉࢀࡓࡀ㸪ⴭ⪅ࡽࡢࢢ࣮ࣝࣉࡣࡇࡢ◊✲࡟࠾࠸࡚ྠ⁐᥋ἲ࡟ࡼࡾ〇సࡉࢀࡓ⥅ᡭࡢ⑂ປᙉᗘホ౯ࢆᢸᙜࡍࡿ࡜࡜ࡶ࡟㸪ࣁ࢖ࣈࣜࢵ
ࢻ⁐᥋ἲࡢ฼⏝ᣑ኱࡟ྥࡅ࡚ྠ⁐᥋ἲ࡟ࡼࡿ⁐᥋ゅኚᙧపῶຠᯝ࡟ࡘ࠸᳨࡚ウࡋࡓ 2)㸬ࡑࡢ୍⎔࡜ࡋ࡚⇕ᙎ
ረᛶ FE ゎᯒ࡟ࡼࡿ⁐᥋ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆᐇ᪋ࡋࡓࡀ㸪ᮏ◊✲࡛ࡣࡑࡢ⇕ᙎረᛶ FE ゎᯒ࠿ࡽᚓࡽࢀࡓṧ␃ᛂຊศᕸࡢᛶ≧ࡢጇᙜᛶࢆ☜ㄆࡍࡿࡇ࡜ࢆ┠ⓗ࡟㸪ࣁ࢖ࣈࣜࢵࢻ⁐᥋ἲ࡟ࡼࡾ〇సࡉࢀࡓ᏶඲⁐ࡅ㎸ࡳ T Ꮠ⥅ᡭࡢ⁐᥋ṧ␃ᛂຊศᕸࢆ X ⥺ṧ␃ᛂຊィ ⿦⨨ 3)࡟ࡼࡾ ᐃࡋ㸪FE ゎᯒ⤖ᯝ࡜ࡢẚ㍑᳨ウࢆᐇ᪋ࡋࡓ㸬㸰㸬౪ヨᮦ୪ࡧ࡟ṧ␃ᛂຊィ ఩⨨ ṧ␃ᛂຊࢆィ ࡍࡿヨᩱࡣ 2 ࣃࢫ㸦௜ຍ≀∦ഃ࠿ࡽ 1 ࣃࢫ᪋ᕤ㸪ࡑࡢᚋ㏫ഃ࠿ࡽ 1 ࣃࢫ᪋ᕤ㸧ࡢࣁ࢖ࣈࣜ
ࢵࢻ⁐᥋࡛᏶඲⁐㎸ࡳ⁐᥋ࡀ㐩ᡂࡉࢀࡓ T Ꮠ⥅ᡭ࠿ࡽ᥇ྲྀࡋࡓ୕Ⅼ᭤ࡆ⑂ປヨ㦂∦࡛࠶ࡾ㸪௜ຍ≀ཌࡉ
14mm㸪୺ᯈཌࡉ 21mm ࡢ⑂ປヨ㦂∦㸦Fig. 1㸧㸪୪ࡧ࡟௜ຍ≀ཌࡉ 9mm㸪୺ᯈཌࡉ 15mm ࡢ⑂ປヨ㦂∦㸦Fig.
2㸧ࡢ 2 ✀㢮ࡢヨᩱࡢṧ␃ᛂຊࢆ ᐃࡋࡓ㸬ヨᩱࡢᙧ≧࣭ᑍἲࢆ Fig. 1㸪୪ࡧ࡟ Fig. 2 ࡟♧ࡍ㸬
14

180

21

15

21

80

50

9

     

180

21

  Fig. 1 Geometries of fatigue specimen (14t+21)      Fig. 2 Geometries of fatigue specimen (9t+21)
 ඛ࡟㏙࡭ࡓ⇕ᙎረᛶ FE ゎᯒ 2)ࡣ Fig. 1 ࡟♧ࡍ௜ຍ≀ཌࡉ 14mm ࡢ⥅ᡭࡢࡳࢆᑐ㇟࡜ࡋ࡚࠸ࡿࡀ㸪X ⥺ṧ␃ᛂຊィ ⿦⨨ࢆ౑⏝ࡋ࡚ᚓࡽࢀࡓṧ␃ᛂຊศᕸࡢጇᙜᛶࢆ᳨ウࡍࡿࡓࡵ࡟ Fig. 2 ࡟♧ࡍ௜ຍ≀ཌࡉ 9mm ࡢ⑂ປヨ㦂∦ࡢṧ␃ᛂຊศᕸ࡟ࡘ࠸࡚ࡶィ ࢆ⾜ࡗࡓ㸬 ṧ␃ᛂຊィ ఩⨨ࢆ Fig. 3 ࡟♧ࡍ㸬௜ຍ≀ཌࡉ 14mm ࡢ⑂ປヨ㦂∦㸪୪ࡧ࡟௜ຍ≀ཌࡉ 9mm ࡢ⑂ປヨ㦂∦− 130 −

࡟ᑐࡋ㸪➨ 1 ࣃࢫ┠㸪୪ࡧ࡟➨ 2 ࣃࢫ┠࡛ᙧᡂࡉࢀࡓ⁐᥋ࣅ࣮ࢻࡢ⁐᥋Ṇ➃ࢆࡑࢀࡒࢀࡢ x ᪉ྥࡢཎⅬ࡜ࡋ㸪⑂ປヨ㦂∦zx୰ኸ఩⨨࡛ࡢᯈᖜ᪉ྥṧ␃ᛂຊࡢᯈᖜ᪉ྥศᕸࢆ ᐃࡋࡓ㸬 ௜ຍ≀ཌࡉ 14mm ࡢヨ㦂∦࡟ᑐࡋ࡚㸪୺ᯈ⿬㠃ࢆཎⅬ࡜

2nd side

1st sideࡋ࡚㸪⁐᥋Ṇ➃┤ୗ࡟࠾ࡅࡿᯈᖜ᪉ྥṧ␃ᛂຊࡢᯈཌ᪉ྥศ
Only 14t+21

ᕸࢆ ᐃࡋࡓ㸬

Fig. 3 Measurement line of residual stress㸱㸬ṧ␃ᛂຊィ ⤖ᯝ Fig. 4 ࡟ᯈᖜ᪉ྥṧ␃ᛂຊࡢᯈᖜ᪉ྥศᕸࢆ♧ࡍ㸬ⓑᢤࡁ༳㸦ࠐ༳㸪‫ڧ‬༳㸧࡛♧ࡉࢀࡿ⤖ᯝࡀ௜ຍ≀ཌࡉ 14mm ࡢ⑂ປヨ㦂∦ࡢṧ␃ᛂຊศᕸ࡛࠶ࡾ㸪㉥ሬ༳㸦 ༳㸪 ༳㸧࡛ศᕸ࡛࠶ࡿ㸬୸༳ࡀ➨ 1 ࣃࢫ┠ഃࡢṧ␃ᛂຊศᕸ࡛࠶ࡾ㸪
ᅄゅ༳ࡀ➨ 2 ࣃࢫ┠ഃࡢṧ␃ᛂຊศᕸ࡛࠶ࡿ㸬 ➨ 2 ࣃࢫ┠ഃ⁐᥋Ṇ➃㒊㏆ഐ࡛ࡣヨ㦂∦ࡢᯈཌ࡟㛵ࢃࡽࡎᙉ࠸ᅽ⦰ṧ␃ᛂຊሙࡀᙧᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡲࡓ➨ 1 ࣃࢫ┠࡟࠾࠸࡚ࡶ⁐᥋Ṇ➃㒊㏆ഐ࡟࠾࠸࡚ᅽ⦰ṧ␃ᛂຊሙࡀᙧᡂࡉࢀ࡚࠾ࡾ㸪Ṇ➃㒊࠿ࡽ㐲ࡊ࠿ࡿ࡟ࡘࢀ࡚ᘬ
ᙇഃ࡬⛣⾜ࡋ࡚࠸ࡿ㸬 ⁐᥋࡟ࡼࡾᙧᡂࡉࢀࡿᯈᖜ᪉ྥṧ␃ᛂຊሙࡣ㸪1㸧⁐᥋ጞ➃㒊㏆ഐ࡛ࡣ୰⛬ᗘࡢᘬᙇᛂຊ㸪2㸧⁐᥋Ṇ➃࠿ࡽ㐲ࡊ࠿ࡿ࡟ࡘࢀᚎࠎ࡟ῶᑡࡋ㸪3㸧ᯈ➃㒊࡟࠾࠸࡚ࡣ࡯࡜ࢇ࡝ṧ␃ᛂ
ຊࡀⓎ⏕ࡋ࡚࠸࡞࠸㸪࡜⪃࠼ࡽࢀࡿࡓࡵ㸪௒ᅇ ᐃࡉࢀࡓṧ␃ᛂຊሙࡣ㸪T ⥅ᡭ〇సᚋ࠿ࡽ⑂ປヨ㦂∦࡟ຍᕤࡍࡿࡲ

600

Transvers residual stress [MPa]♧ࡉࢀࡿ⤖ᯝࡀ௜ຍ≀ཌࡉ 9mm ࡢ⑂ປヨ㦂∦ࡢṧ␃ᛂຊ

14t+21
1st side
2nd side

9t+14
1st side
2nd side

500
400
300
200
100
0
í100
í200
z

í300
2nd side

í400
í500
0

3

6

9

12

x
1st side15

18

Distance from weld toe, x [mm]21Fig. 4 Measurement results of transvers residual stress࡛ࡢ㐣⛬࡛ఱࡽ࠿ࡢእຊࡀാࡁ㸪ࡑࡢእຊ࡟㉳ᅉࡍࡿṧ␃ᛂ
Mesured results
1st side

FE Results
1st sideຊࡀ௜ຍࡉࢀࡓ⤖ᯝ࡛࠶ࢁ࠺࡜᥎ᐹࡉࢀࡿ㸬

2nd side

2nd side500 ィ ࠿ࡽᚓࡽࢀࡓṧ␃ᛂຊศᕸ࡜ FE ゎᯒ࠿ࡽᚓࡽࢀࡓṧ400␃ᛂຊศᕸࢆẚ㍑ࡋࡓ⤖ᯝࢆ Fig. 5㸪୪ࡧ࡟ Fig. 6 ࡟♧ࡍ㸬
 Fig. 5 ୰ࡢⓑᢤࡁ༳㸦ࠐ༳㸪‫ڧ‬༳㸧ࡣィ ࡟ࡼࡾᚓࡽࢀࡓ
ᯈᖜ᪉ྥṧ␃ᛂຊࡢᯈᖜ᪉ྥศᕸࢆ♧ࡋ࡚࠾ࡾ㸪㟷ሬ༳㸦༳㸪 ༳㸧ࡣ FE ゎᯒ࠿ࡽᚓࡽࢀࡓᯈᖜ᪉ྥṧ␃ᛂຊࡢᯈᖜ

Transverse residual stress [MPa]㸲㸬FE ゎᯒ⤖ᯝ࡜ࡢẚ㍑

300
200
100
0

í100

᪉ྥศᕸࢆ♧ࡋ࡚࠸ࡿ㸬FE ゎᯒࡢ⤖ᯝࡣ๓⠇࡛㏙࡭ࡓࡼ࠺࡞୍⯡ⓗ࡞⁐᥋ṧ␃ᛂຊศᕸ࡜࡞ࡗ࡚࠸ࡿࡀ㸪ィ ⤖ᯝࡣࡑࡢᐃᛶⓗᣲືࡀⴭࡋࡃ
␗࡞ࡗ࡚࠾ࡾ୧⪅࡟㢮ఝᛶࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓ㸬
Fig. 6 ୰ࡢ‫ڦ‬༳㸪୪ࡧ࡟‫ڸ‬༳ࡣィ ࡟ࡼࡾᚓࡽࢀࡓᯈᖜ᪉

í200
í300

x
y

í400
í500
0

3

6

9

12

15

Distance from weld toe, x [mm]ྥṧ␃ᛂຊࡢᯈཌ᪉ྥศᕸ࡛࠶ࡿ㸬⑂ປヨ㦂∦᩿㠃ࡣෆᅾḞ㝗᭷↓ࡢㄪᰝࢆ⾜࠺ࡓࡵ࡟ᶵᲔ

Fig. 5 Comparison of FE results and measured results◊☻ࡀ᪋ࡉࢀ࡚࠾ࡾ㸪‫ڸ‬༳ࡣᶵᲔ◊☻ࡉࢀࡓࡲࡲィ ࢆ⾜ࡗ(Through width direction)− 131 −

ࡓṧ␃ᛂຊศᕸ࡛࠶ࡾ㸪‫ی‬༳ࡣᶵᲔ◊☻ࡢᙳ㡪ࢆྲྀࡾ㝖ࡃࡇ࡜ࢆ┠ⓗ࡟ 100ȣm ⛬ᗘ㟁ゎ◊☻ࢆ⾜ࡗࡓᚋࡢ᩿㠃ࢆィ
21㏆࡛ᘬᙇ㸪ᯈཌෆ୰ኸ࡛ᅽ⦰㸪ᯈ⿬㠃࡛෌ᗘᘬᙇഃ࡬⛣⾜ࡍࡿᐃᛶⓗᣲືࡣ୍⮴ࡋ࡚࠸ࡿ㸬 㟷ሬ༳㸦 ༳㸧ࡣ FE ゎᯒ࠿ࡽᚓࡽࢀࡓṧ␃ᛂຊศᕸࢆ
♧ࡋ࡚࠾ࡾ㸪FE ゎᯒ࠿ࡽᚓࡽࢀࡓ⤖ᯝࡶᯈ⾲㠃ഃ௜㏆࡛ᘬᙇ㸪ᯈཌෆ୰ኸ࡛ᅽ⦰㸪ᯈ⿬㠃࡛෌ᗘᘬᙇഃ࡬⛣⾜ࡍࡿ࡜࠸࠺ᣲືࢆ♧ࡋ࡚࠾ࡾ㸪ィ ࠿ࡽᚓࡽࢀࡓṧ␃ᛂຊሙࡢ≉ᚩ࡜࠾࠾ࡴࡡ୍⮴ࡋ࡚࠸ࡿ㸬㸳㸬⤖ㄽ ࣮ࣞࢨ࣭࢔࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋ἲ࡟ࡼࡾ〇సࡉࢀࡓ TᏐ⥅ᡭ࡟⏕ࡌࡿṧ␃ᛂຊࡢィ ࢆ⾜࠸㸪⇕ᙎረᛶ FE ゎᯒ࠿ࡽᚓࡽࢀࡓࡑࢀ࡜ࡢẚ㍑ࢆ⾜ࡗࡓ㸬ᚓࡽࢀࡓ⤖ㄽࡢせ᪨Distance from back surface, z [mm]ࡋ࡚ᚓࡽࢀࡓṧ␃ᛂຊศᕸ࡛࠶ࡿ㸬୧⪅࡜ࡶᯈ⾲㠃ഃ௜

Mesured results
FE results
After Electropolishing
Before Electropolishing

18
15
12

z

x

9
6
3
0
í400 í300 í200 í100 0 100 200 300 400
Transverse residual stress [MPa]Fig. 6 Comparison of FE results and measuredࢆ௨ୗ࡟♧ࡍ㸬results (Through thickness direction)(1) ᯈᖜ᪉ྥṧ␃ᛂຊࡢᯈᖜ᪉ྥศᕸ࡟ࡘ࠸࡚㸪ᮏ◊✲࡛ṧ␃ᛂຊࢆィ ࡋࡓヨᩱࡣ⁐᥋ᚋ࠿ࡽ⑂ປヨ㦂∦࡟ຍᕤࡉࢀࡿ㐣⛬࡛ఱࡽ࠿ࡢእຊࡀຍ࠼ࡽࢀࡓྍ⬟ᛶࡀ㧗ࡃ㸪ᚓࡽࢀࡓṧ␃ᛂຊศᕸࡣ୍⯡ⓗ࡟▱ࡽࢀ࡚࠸ࡿ⁐᥋ṧ␃ᛂຊࡢᣲື࡜␗࡞ࡗ࡚࠸ࡓ㸬(2) ᯈᖜ᪉ྥṧ␃ᛂຊࡢᯈཌ᪉ྥศᕸ࡟ࡘ࠸࡚㸪ィ ⤖ᯝ࡜ゎᯒ⤖ᯝࡢᐃᛶᡭᣲືࡣ୍⮴ࡋ࡚࠾ࡾ㸪ᯈ⾲㠃ഃ௜㏆࡛ᘬᙇ㸪ᯈཌෆ୰ኸ࡛ᅽ⦰㸪ᯈ⿬㠃࡛෌ᗘᘬᙇഃ࡬⛣⾜ࡍࡿ㸬(3) X ⥺ᅇᢡἲ࡟ࡼࡾᯈཌෆṧ␃ᛂຊศᕸࢆ⢭ᗘࡼࡃྲྀᚓࡍࡿ࡟ࡣ㸪ィ 㠃ࡢษ᩿࡟ࡼࡾ⏕ࡌࡿṧ␃ᛂຊࢆ㐺ษ࡟㝖ཤࡍࡿᚲせࡀ࠶ࡾ㸪ࡑࡢ᪉ἲ࡟ࡘ࠸᳨࡚ウࢆせࡍࡿ㸬ཧ⪃ᩥ⊩
1)

http://fields.canpan.info/report/detail/17734㸪(accessed on January 08, 2015.)2)ὠᮧ⚽୍㸪ᮧୖᖾ἞㸪ᚋ⸨ᾈ஧㸪࣮ࣞࢨ࣭࢔࣮ࢡࣁ࢖ࣈࣜࢵࢻ⁐᥋࡟ࡼࡾ〇సࡉࢀࡓ 7 ⥅ᡭ࡟⏕ࡌࡿゅኚᙧ࡟㛵ࡍࡿ᳨୍ウ㸪⁐᥋ᵓ㐀ࢩ࣏ࣥࢪ࣒࢘  ㅮ₇ㄽᩥ㞟㸪pp.41-48㸪2014.

3)

http://www.pulstec.co.jp/ne/shinchaku120808seihin.html㸪(accessed on January 08, 2015.)㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶタィᏛศ㔝㸧− 132 −

ᘓ⠏ᵓ㐀৷ৈᙇৡ㗰࡬ࡢৈ࢚ࢿࣝࢠ࣮ᐦᗘ⁐᥋ࡢ㐺৷㏆␥኱Ꮫ ᕤᏛ㒊 ᘓ⠏Ꮫ⛉   ᓮ㔝 Ⰻẚ࿅ࡣࡌࡵ࡟ ᘓ⠏ᵓ㐀⏝㧗ᙉᗘ㗰 +6$ ࡣࠊ㠉᪂ⓗᵓ㐀ᮦᩱࢆ⏝࠸ࡓ᪂ᵓ㐀ࢩࢫࢸ࣒ᘓ⠏≀ࡢ◊✲㛤Ⓨࣉࣟࢪ࢙ࢡࢺ࡟࠾࠸࡚ࠊ⤒῭ྜ⌮ᛶࢆ㏣ồࡋࡓ㧗ᙉᗘ໬ࢆᅗࡿࡓࡵࠊྜ㔠ῧຍ㔞ࡢపῶ࡜⇕ฎ⌮ᕤ⛬ࡢ┬␎ࠊ⡆␎໬ࢆ┠ᣦࡋ㛤Ⓨࡉࢀࡓࠋᙜึࡣࠊ஝
ᘧ᥋ྜ⏝ࡢ +6$$ ᮦࡋ࠿Ꮡᅾࡋ࡞࠿ࡗࡓࡀࠊ
⁐᥋᥋ྜ⏝ࡢ +6$% ᮦࡀ㛤Ⓨࡉࢀࡓࠋ୍⯡ⓗ࡟ࠊ+6$% ᮦࡢ⁐᥋࡟ࡣసᴗຠ⋡ࠊ⏕⏘ᛶࡀ㧗࠸࢔࣮ࢡ⁐᥋ࢆ⏝࠸ࡿࠋࡋ࠿ࡋࠊ⁐᥋ධ⇕࡟ࡼࡗ࡚⁐᥋㒊ࡀ㌾໬ࡋࠊ㝆అᙉᗘࡀẕᮦࡢつ᱁㝆అᙉᗘ࡛࠶ࡿ 1PPtࢆୗᅇࡿሙྜࡀ࠶ࡿ  ࠋࡇࢀ࡟ࡼࡗ࡚ẕᮦ࡜⁐᥋㒊࡟㝆అᙉᗘࡢ㐪࠸ࡀ⏕ࡲࢀࠊẕᮦࡀⲴ㔜࡟⪏࠼ࡿࡇ࡜ࡀ࡛ࡁ࡚ࡶ⁐᥋㒊ࡀⲴ㔜࡟⪏࠼ࡽࢀࡎࠊᦆയ࣭ኚᙧ࣭◚᩿ࡋ࡚ࡋࡲ࠺
ྍ⬟ᛶࡀ࠶ࡾࠊ+6$ ࡢ≉ᚩࢆ༑ศ࡟Ⓨ᥹࡛ࡁ࡞࠿ࡗࡓࠋ ࡑࡢゎỴ᪉ἲ࡜ࡋ࡚ࠊ࣮ࣞࢨ⁐᥋ࡢ㐺⏝ࢆ⪃࠼ࡓࠋ࣮ࣞࢨ⁐᥋࡛ࡣ⇕ᙳ㡪㒊ࢆ⊃ࡃࡍࡿࡇ࡜ࡀྍ
⬟࡞ࡢ࡛ࠊ㌾໬ࢆ㜵Ṇࡶࡋࡃࡣῶᑡࡉࡏࡿຠᯝࡀ
ᮇᚅ࡛ࡁࡿࠋࡇࢀ࡟ࡼࡗ࡚ࠊ+6$ ࡢ㝆అᙉᗘࡢ㧗ࡉࢆ༑ศ࡟Ⓨ᥹ࡋࠊᵝࠎ࡞⏝㏵࡛౑⏝࡛ࡁࡿྍ⬟ᛶࡀ࠶ࡿ ᮏሗ࡛ࡣࠊ+6$ ⁐᥋⇕ᙳ㡪ࡢ㌾໬ࢆ࣮ࣞࢨ
⁐᥋࡛ᨵၿ࡛ࡁࡿ࠿ྰ࠿ࢆ࣐ࢡࣟヨ㦂㸪◳ࡉヨ㦂࠾ࡼࡧᘬᙇヨ㦂࡟ࡼࡾ᳨ウࡋࡓ⤖ᯝ࡟ࡘ࠸࡚ሗ
࿌ࡍࡿࠋ౑⏝㗰ᮦ࡜⁐᥋᮲௳  ᮏ◊✲࡛ࡣࠊPP ࡢ +6$㸦Ȫ<㸻03DȪ8㸻03D㸧 ᯛࢆ PP ࡢ㠃࡛✺ྜࡏࠊ࣮ࣞࢨ⁐᥋࡜㏻ᖖࡢ࢔࣮ࢡ⁐᥋ࡢ  ࡘࡢ᪉ἲ࡛⁐᥋ࡋࡓࠋ࣮ࣞࢨ⁐᥋ࡣ࣓ࢱࣝࢱࢵࢳ㸪࢔࣮ࢡ⁐᥋ࡣ r9 㛤ඛ࡜ࡋࠊ⾲㠃  ࣃࢫ⁐᥋ᚋ⿬㠃ࡼࡾ  ࣃࢫ┠ࡢ⁐᥋ࢆ⾜ࡗࡓࠋ࣮ࣞࢨ⁐᥋࡟⁐ᮦࡣ౑⏝ࡋ࡚࠸࡞࠸ࠋᅗ  ࣮ࣞࢨ⁐᥋㒊ୖ㒊ࡢᙧ≧ ࣮ࣞࢨ⁐᥋ࡍࡿ࡜࢔ࣥࢲ࣮ࣇ࢕ࣝ࡜⛠ࡍࡿࡃࡰࡳࡀฟ᮶ࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋࡑࡇ࡛⁐᥋㒊ࡢᙧ≧ࢆ ' ᐃ࣐ࢡࣟࢫࢥ࣮ࣉ࡛ィ ࡋࡓࠋ࣮ࣞࢨ⁐᥋㒊ୖ㒊ࡢᙧ≧ࢹ࣮ࢱࢆᅗ  ࡟♧ࡍࠋ࣮ࣞࢨ⁐᥋ࡣ᭱኱῝ࡉ PP㸪ᖜ PP ࡢ࢔ࣥࢲ࣮
ࣇ࢕ࣝࡀ᭱㛗 PP ⛬ᗘᙧᡂࡉࢀ࡚࠸ࡓࠋ
࣐ࢡࣟヨ㦂⤖ᯝ  ⁐᥋㒊ࡢ⁐᥋㔠ᒓ㒊࠾ࡼࡧ⇕ᙳ㡪㒊ࡢ኱ࡁࡉࢆẚ㍑ࡍࡿࡓࡵࠊ⁐᥋ᯈ࠿ࡽ PP ࡢヨ㦂∦ࢆษࡾฟࡋࠊ⁐᥋᩿㠃ࡢ࣐ࢡࣟヨ㦂ࢆ⾜ࡗࡓࠋᅗ ࡟࣮ࣞࢨ⁐᥋ヨ㦂∦ࡢ࣐ࢡࣟヨ㦂ᚋࡢ෗┿ࢆ♧ࡍࠋ࣮ࣞࢨ⁐᥋ࡣ࢔࣮ࢡ⁐᥋࡟ẚ࡭࡚⁐᥋㔠ᒓ㸪⇕ᙳ㡪㒊ඹ࡟⠊ᅖࡀ⊃࠿ࡗࡓࠋ㌾໬㒊࡜࡞ࡾᚓࡿ
⇕ᙳ㡪㒊ࡣࠊ࢔࣮ࢡ⁐᥋ࡀᖹᆒ࡛ PP ௨ୖ࡞ࡢ࡟
ᑐࡋ࡚ࠊ࣮ࣞࢨ⁐᥋㒊ࡣᖹᆒ࡛⣙ PP ࡛࠶ࡗࡓࠋ
ࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂⤖ᯝ ࣐ࢡࣟヨ㦂ࢆ᪋ࡋࡓヨ㦂∦ࡢ୰ᚰ࠿ࡽᕥྑ࡟
࣮ࣞࢨ⁐᥋ࡣ PP㸪࢔࣮ࢡ⁐᥋ࡣ PP ࡢ⠊ᅖࢆPP ࣆࢵࢳ࡛ࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂ࢆ⾜ࡗࡓࠋヨ㦂Ⲵ㔜ࡣ 1 ࡜ࡋࡓࠋヨ㦂ࡣᯈཌ୰ኸ࡜୰ኸ࠿
ࡽୖୗ࡟ PP ࡢ  ࣛ࢖ࣥ࡜ࡋࡓࠋᯈཌ୰ኸࡢ◳ࡉࢆẚ㍑ࡋࡓࡶࡢࢆᅗ  ࡟♧ࡍࠋ㟷⥺ࡀ࣮ࣞࢨ⁐᥋ࠊ㉥⥺ࡀ࢔࣮ࢡ⁐᥋ࡢ⤖ᯝ࡛࠶ࡿࠋᅗ  ࣐ࢡࣟヨ㦂⤖ᯝᅗ  ࣅࢵ࣮࢝ࢫ◳ࡉࡢẚ㍑

ᐃ⤖ᯝ

− 133 −

࡛ +6$ ࡢ㝆అᙉᗘࢆ⁐᥋㒊࡛ࡶⓎ᥹ࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ௨ୖࡢ⤖ᯝ࠿ࡽࠊ+6$ ࡟࣮ࣞࢨ⁐᥋ࢆ᪋ࡍࡇ࡜࡛ࠊ㧗ᙇຊ㗰࡜ࡋ࡚ࡢ฼Ⅼࢆ༑ศ
࡟Ⓨ᥹ฟ᮶ࡿྍ⬟ᛶࡀ♧ࡉࢀࡓ࡜⪃࠼ࡿࠋㅰ㎡ ᮏ◊✲ࡣࠊᖹᡂ  ᖺᗘ ᪥ᮏ㕲㗰㐃┕ࠕ㗰ᵓ㐀◊✲࣭ᩍ⫱ຓᡂ஦ᴗࠖࡢ⿵ຓࢆཷࡅࡓࠋࡲࡓࠊ
ᰴ ,+, ࡼࡾ࣮ࣞࢨ⁐᥋ࢆ᪋ᕤᡝࡁࠊ ᰴ -)( ࢫࢳ࣮ࣝ࡟ࡣ +6$ ࢆᥦ౪㡬࠸ࡓࠋࡇࡇ࡟グࡋ࡚ឤㅰ࠸ࡓࡋࡲࡍࠋ
ཧ⪃ᩥ⊩  ᪥ᮏ㗰ᵓ㐀༠఍㸸ᘓ⠏ᵓ㐀⏝㧗ᙉᗘ PP㗰ᮦ㸦+6$㸧㗰ᮦつ᱁࠾ࡼࡧ⁐᥋᪋ᕤせ㡿㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶタィᏛศ㔝㸧ᅗ  Ⲵ㔜㸫ኚᙧ㛵ಀࡢẚ㍑㸦$VZHOG ヨ㦂య㸧70
60
50
Ⲵ㔜(kN)

 ࢔࣮ࢡ⁐᥋ࡣ࠸ࡎࢀࡢࣛ࢖࡛ࣥࡶ⇕ᙳ㡪㒊࡟࠾࠸࡚ +9 ⛬ᗘࡢ㌾໬ࡀぢࡽࢀࠊࡑࡢᖜࡣ 㹼PP ࡜࡞ࡗ࡚࠸ࡓࠋࡇࢀ࡟ᑐࡋࠊ࣮ࣞࢨ⁐᥋࡛ࡣ⇕ᙳ㡪㒊ࡢ㌾໬ࡣ࡯࡜ࢇ࡝ぢࡽࢀ࡚࠸࡞࠸ࠋࡋ࠿
ࡋࠊ࢔࣮ࢡ⁐᥋࡛ࡣ◳໬ࡀぢࡽࢀ࡞࠸ࡢ࡟ᑐࡋࠊ
࣮ࣞࢨ⁐᥋࡛ࡣ⁐᥋㔠ᒓ㒊ࡀ඲య࡟ࢃࡓࡾ◳໬ࡋ࡚࠾ࡾࠊ௒ᚋ᳨ウࡀᚲせ࡛࠶ࡿࠋ
ᘬᙇヨ㦂⤖ᯝ  ⁐᥋ᯈࡼࡾ⁐᥋㒊ࢆ୰ᚰ࡟ -,6$ ྕヨ㦂∦ࢆษࡾฟࡋᘬᙇヨ㦂࡟౪ࡋࡓࠋヨ㦂∦ࡣࠊ⁐᥋㒊ࢆຍᕤࡋ࡚࠸࡞࠸ $VZHOG ヨ㦂యྛ  ᮏ࡜ᯈཌࡀ
PP ࡢᖹᯈ࡜࡞ࡿࡼ࠺࡟ຍᕤࡋࡓ 3ODWH ヨ㦂యྛ ᮏࡢ  ✀㢮࡜ࡋࡓࠋ ◚᩿఩⨨ࢆẚ㍑ࡋࡓࡶࡢࢆᅗ  ࡟♧ࡍࠋ࣮ࣞࢨ
⁐᥋ヨ㦂య㸦ୗ㸧ࡣ⁐᥋㒊୰ᚰ࠿ࡽ⣙ PP 㞳ࢀࡓẕᮦ㒊ࡀࡃࡧࢀ࡚◚᩿ࡋ࡚࠸ࡿࠋࡇࢀ࡟ᑐࡋ࡚
࢔࣮ࢡ⁐᥋ヨ㦂య㸦ୖ㸧ࡣ⣙ PP 㞳ࢀࡓ⇕ᙳ㡪㒊ࡢ㏆ࡃ࡛◚᩿ࡋ࡚࠸ࡿࠋࡇࢀࡣࠊ࢔࣮ࢡ⁐᥋ࡢ⇕ᙳ㡪㒊ࡀ㌾໬ࡋ࡚࠸ࡓᙳ㡪࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ
ࡇࢀᑐࡋ࡚ࠊ࣮ࣞࢨ⁐᥋ࡣ⁐᥋㒊ࡀ㌾໬ࡋ࡚࠸࡞
࠸ࡓࡵࠊ⁐᥋㒊࠿ࡽ㞳ࢀࡓẕᮦࡢ㒊ศ࡛◚᩿ࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ Ⲵ㔜ኚᙧ㛵ಀࢆᅗ 㸪 ࡟ࠊᘬᙇヨ㦂⤖ᯝࢆ⾲ ࡟♧ࡍࠋ/7 ࡀ࣮ࣞࢨ⁐᥋ヨ㦂యࢆ $7 ࡀ࢔࣮ࢡ⁐᥋ヨ㦂యࢆ⾲ࡍࠋ୧⪅ࢆẚ㍑ࡍࡿ࡜ࠊ㝆అᛂຊ㸪ᘬᙇᙉࡉඹ࡟࢔࣮ࢡ⁐᥋࡜࣮ࣞࢨ⁐᥋ࡢᕪࡀ㠀ᖖ࡟ᑡ࡞࠸ࠋ 3ODWHヨ㦂యࡢሙྜࠊ࣮ࣞࢨ⁐᥋ࡢ㝆అᛂຊࡀ $VZHOG ヨ㦂య࡜ྠ⛬ᗘ࡞ࡢ࡟ᑐࡋࠊ
࢔࣮ࢡ⁐᥋㒊ࡢ㝆అᛂຊࡣ 1PP ⛬ᗘᑠࡉࡃ࡞
ࡗ࡚࠸ࡿࠋࡇࢀࡣࠊ3ODWHヨ㦂యࡣ㌾໬㒊ࡢᗈ࠸୰ኸ㒊ࡀከࡃṧࡗ࡚࠸ࡿࡓࡵ㌾໬ࡢᙳ㡪ࡀ㢧ⴭ࡟⌧ࢀࡓࡶࡢ࡜⪃࠼ࡽࢀࡿࠋࡼࡗ࡚ࠊཌᯈ࡛ᐇ㦂ࢆ⾜࠺࡜ $VZHOG ヨ㦂య࡛ࡶ㌾໬ࡢᙳ㡪ࡀ኱ࡁࡃ⌧ࢀࡿྍ⬟ᛶࡀ♧၀ࡉࢀࡿࠋ
ࡲ࡜ࡵ  ⁐᥋⇕ᙳ㡪ࡀ㠀ᖖ࡟ᑡ࡞࠸࡜࠸࠺࣮ࣞࢨ⁐᥋ࡢ≉ᚩࡣࠊ+6$ ࡛ࡶ༑ศ࡟Ⓨ᥹ࡉࢀࡿࡇ࡜ࠊ
ࡑࢀ࡟కࡗ࡚⁐᥋㒊ࡢ㌾໬ࢆ㜵ṆࡍࡿຠᯝࡶⓎ᥹ࡉࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
ࡉࡽ࡟ 3ODWHヨ㦂యࡢᘬᙇヨ㦂ࡢ⤖ᯝ࠿ࡽࠊ㌾໬ࢆ㜵Ṇࡍࡿࡇ࡜

40
30
20
10
0

ᅗ  ࣮ࣞࢨ⁐᥋࡜࢔࣮ࢡ⁐᥋ࡢ◚᩿㒊ࡢẚ㍑

− 134 −

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

ኚ఩
AT3

LT3

ᅗ  Ⲵ㔜㸫ኚᙧ㛵ಀࡢẚ㍑㸦3ODWH ヨ㦂య㸧⾲  ᘬᙇヨ㦂⤖ᯝ
ヨ㦂య 㝆అᛂຊ㻔㻺㻛㼙㼙㻞㻕 ᘬᙇᙉ䛥㻔㻺㻛㼙㼙㻞㻕
㻸㼀㻝
㻤㻝㻞
㻤㻡㻜
㻸㼀㻞
㻤㻜㻞
㻤㻠㻝
㻸㼀㻟
㻤㻜㻞
㻤㻠㻟
㻸㼀㻔ᖹᆒ㻕
㻤㻜㻡
㻤㻠㻠
㻭㼀㻝
㻣㻥㻤
㻤㻞㻣
㻭㼀㻞
㻣㻤㻤
㻤㻟㻣
㻭㼀㻟
㻣㻡㻢
㻤㻜㻜
㻭㼀㻔ᖹᆒ㻕㻣㻤㻝㻤㻞㻝17ṧ␃࣮࢜ࢫࢸࢼ࢖ࢺࡢ TRIP ຠᯝࡀᒁᡤᛂຊศᕸ࡟୚࠼ࡿᙳ㡪࡟㛵ࡍࡿ⤖ᬗረᛶ FE ゎᯒᮾ໭኱Ꮫ ⅏ᐖ⛉Ꮫᅜ㝿◊✲ᡤ ᑎ⏣㈼஧㑻ࠊ᪂Ꮿຬ୍
኱㜰኱Ꮫ ᥋ྜ⛉Ꮫ◊✲ᡤ ሐ ᡂ୍㑻㸯㸬⥴ゝຊᏛⓗ࡞స⏝࡟ࡼࡾ࣮࢜ࢫࢸࢼ࢖ࢺ⤌⧊ࡀ࣐ࣝࢸࣥࢧ࢖ࢺኚែࡍࡿࡇ࡜࡟ࡼࡿ㸪࠸ࢃࡺࡿ TRIP
㸦transformation induced plasticity㸧ຠᯝࢆά⏝ࡋࡓᮦᩱࡢ≉ᛶྥୖ⟇ࡀ✚ᴟⓗ࡟ᑟධࡉࢀ࡚࠸ࡿ㸬ࡇࡢ࣐ࣝࢸࣥࢧ࢖ࢺ┦࡬ࡢ┦㌿⛣ࡢ㛫࡟య✚⭾ᙇࢆ࿊ࡍࡿ࡜࡜ࡶ࡟ 10㸣⛬ᗘࡶࡢ኱ࡁ࡞ࡦࡎࡳࢆ⏕ࡌࡿࡇ࡜࠿ࡽ㸪ᮦᩱࡢᛂຊࡦࡎࡳ㛵ಀ࡟␃ࡲࡽࡎ㸪◚ቯ࣭⑂ປࡁ⿣ࡢⓎ⏕᫬ᮇ࣭㐍ᒎ㏿ᗘ࡞࡝࡟኱ࡁࡃᙳ㡪ࢆ୚࠼ࡿࡇ࡜ࡀ
☜ㄆࡉࢀ࡚࠸ࡿ 1,2)㸬୍᪉㸪⁐᥋⇕ᙳ㡪㒊 HAZ ࡟ṧ␃ࡋࡓ࣮࢜ࢫࢸࢼ࢖ࢺࡣ㸪◚ቯ㠌ᛶ್ࢆ኱ࡁࡃపୗࡉࡏ
ࡿࡇ࡜ࡀᣦ᦬ࡉࢀ㸪ࡑࡢ࣓࢝ࢽࢬゎ᫂ࢆ㏻ࡌࡓ◚ቯᅉᏊࡢᐃ㔞໬ࡀồࡵࡽࢀ࡚࠸ࡿ㸬ࡇࢀࡲ࡛ⴭ⪅ࡽࡣ㸪⤖ᬗረᛶ FEM ࣔࢹࣝࢆ⏝࠸ࡓᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡾ㸪༢ㄪ࠾ࡼࡧ⧞㏉ࡋ㍕Ⲵ
᫬ࡢᕧどⓗᙎᛶ᮲௳ୗ࡟࠾ࡅࡿረᛶࡦࡎࡳࡢⓎ⏕ࡸ௓ᅾ≀ࡢᙳ㡪➼࡟㛵ࡍࡿ⪃ᐹࢆ⾜࡞ࡗ࡚࠸ࡿ㸬ࡲࡓ㸪ᛂຊࡸኚᙧ࡟ࡼࡿㄏ㉳ࡉࢀࡿ࣐ࣝࢸࣥࢧ࢖ࢺኚែࡀᮦᩱࡢᒁᡤⓗ࡞ኚᙧᣲື㸪≉࡟◚ቯ㉳Ⅼ࡜࡞ࡾ࠺ࡿ࣐ࢺࣜ
ࢵࢡࢫ࡜ࡢቃ⏺௜㏆࡟࠾ࡅࡿᛂຊ≧ែ࡟࡝ࡢࡼ࠺࡞ᙳ㡪ࢆཬࡰࡍࡢ࠿࡞࡝㸪ᐃ㔞ⓗ࡞ホ౯ࢆ┠ᣦࡋࡓ◊✲ࢆ㐍ࡵ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ኚែ᫬࡟ 24 ࡢ⤌ࡳྜࢃࡏࡢ୰࠿ࡽ⤖ᬗ᪉఩࡜㍕Ⲵ᮲௳࡟ᛂࡌ࡚㑅ᢥࡉࢀࡿࣂࣜ࢔ࣥ
ࢺࡢ≉ᛶ㸪」ᩘࡢࣂࣜ࢔ࣥࢺࡀ⏕ᡂࡉࢀࡿ㝿ࡢ⤌ࡳྜࢃࡏ࡜ࡑࡢయ✚ศ⋡㸪ࡉࡽ࡟ࡣ࣐ࢺࣜࢵࢡࢫ࡟⏕ࡌࡿረᛶࡍ࡭ࡾ࡜ࡢ㛵ಀ࡞࡝㸪ᐇ㦂࡟ࡼࡾほ ࡉࢀࡿ⌧㇟ࡢࣔࢹࣝ࡟ࡼࡿ෌⌧ᛶ࡟㛵ࡋ࡚㸪᳨ウࡍ࡭ࡁ஦㡯ࡀከࠎṧࡉࢀ࡚࠸ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪࣐ࣝࢸࣥࢧ࢖ࢺኚែࢆ⪃៖ྍ⬟࡞⤖ᬗረᛶ FE ゎᯒ࡟ࡼࡾ㸪ᙎረᛶᣲື
ࢆ♧ࡍከ⤖ᬗయᮦᩱෆ࡟ṧᏑࡍࡿ࣮࢜ࢫࢸࢼ࢖ࢺࡢ TRIP ຠᯝࡀᒁᡤⓗ࡞ᛂຊࡦࡎࡳᣲື࡟୚࠼ࡿᙳ㡪࡟㛵ࡋ࡚⪃ᐹࢆ⾜࠺㸬㸰㸬ゎᯒࡢᴫせỗ⏝ FEM ゎᯒࢶ࣮ࣝ ABAQUS ⏝࡟㛤Ⓨࡋࡓ࣐ࣝࢸࣥࢧ࢖ࢺኚែࢆ⪃៖ྍ⬟࡞⤖ᬗረᛶ FE ࣔࢹࣝࡢࣘ
࣮ࢨࢧࣈ࣮ࣝࢳࣥࢆ⏝࠸࡚ゎᯒࢆᐇ᪋ࡋࡓ㸬ゎᯒ࡟⏝࠸ࡓ᭷㝈せ⣲ࣔࢹࣝ࠾ࡼࡧቃ⏺᮲௳ࢆ Fig.1 ࡟♧ࡋ࡚࠸ࡿ㸬㸰㸵ಶࡢࣛࣥࢲ࣒᪉ࢆ᭷ࡍࡿ⤖ᬗ⢏࠿ࡽ࡞ࡿゎᯒ㡿ᇦෆ࡟࠾࠸࡚㸪඲య㡿ᇦࡢ୰ኸ௜㏆࡟఩⨨ࡍࡿ⤖ᬗ⢏
㸦Fig.1(b)࡟ᣑ኱㸧ࡣຍᕤㄏ㉳࣐ࣝࢸࣥࢧ࢖ࢺኚែࢆ
࿊ࡍࡿࡇ࡜ࡀྍ⬟࡞⢏࡜ࡋ㸪ࡑࢀ௨እࡣ㸪ᙎረᛶᣲື
ࢆ࿊ࡍࡿࡶࡢ࡜௬ᐃࡋࡓ㸬ࡲࡓ㸪ゎᯒࡢィ⟬ࢥࢫࢺ๐ῶࡢࡓࡵ࡟㸪24 ಶࡢࣂࣜ࢔ࣥࢺࡢ࠺ࡕ㸪ᙧ≧ࡦࡎࡳ࣐ࢺࣜࢵࢡࢫࡀᑐ⛠ᡂศࡢࡳࢆ᭷ࡍࡿࡼ࠺࡟ᖹᆒ໬ࡉࡏ
ࡓ 6 ࡘࡢࣂࣜ࢔ࣥࢺ࡟⤠ࡾ㸪ࡲࡓẚ㍑ࡢࡓࡵ࡟࣐ࢺࣜ
ࢵࢡࢫࡢረᛶࡍ࡭ࡾࢆ⪃៖ࡍࡿࡶࡢ࡜㸪ࡋ࡞࠸ࣔࢹࣝ
a)
࡛ẚ㍑ࢆ⾜ࡗࡓ㸬࡞࠾㸪ࣔࢹࣝᗏ㠃ࢆୖୗ᪉ྥ࡟ᅛᐃ
ࡋ㸪ୖୗ➃㒊ࡢ┦ᑐኚ఩࠿ࡽ࣐ࢡࣟ࡞බ⛠ࡦࡎࡳࢆᐃ
⩏ࡋࡓ㸬㸱㸬⤖ᯝ࠾ࡼࡧ⪃ᐹ
Fig. 2 ࡟୍㍈᪉ྥᘬᙇࡾ㝖Ⲵ᫬ࡢᛂຊࡦࡎࡳ㛵ಀࢆ♧ࡍ㸬ࡲࡓ Fig. 3a)࠾ࡼࡧ b)࡟ᙎᛶ࠾ࡼࡧᙎረᛶᛂ⟅ࢆ࿊ࡍࡿࣔࢹࣝࡢ von Mises ᛂຊศᕸ㸪Fig. 3c)࠾ࡼࡧ
d)࡟ྠ᮲௳ୗࡢࣂࣜ࢔ࣥࢺయ✚⋡㸦㟷㸸ኚែ࡞ࡋ㸪㉥㸸ࣇ࣐ࣝࣝࢸࣥ≧ែ㸧ࡢศᕸࢆࡑࢀࡒࢀ♧ࡋ࡚࠸ࡿ㸬Fig.

b)
Fig. 1 (a) mesh used for the numerical simulation, (b)reference element for the variants volume fraction
evolution.

− 135 −

2 ࡼࡾ㸪௒ᅇ⪃៖ࡋࡓຍᕤㄏ㉳ኚែྍ⬟࡞㡿ᇦࢧ࢖ࢬ⛬ᗘ࡛ࡣ㸪ᙎᛶ࠾ࡼࡧᙎረᛶᛂ⟅ࡢሙྜ࡜ࡶ࡟㸪࣐ࢡࣟ࡞ᛂຊࡦࡎࡳᛂ⟅࡟ᑐࡋ࡚ኚែࡢ᭷↓ࡣඃ఩࡞ᕪࢆ୚࠼࡞࠸ࡇ࡜ࡀࢃ࠿ࡿ㸬୍᪉㸪Fig. 3 ࡼࡾ㸪ኚែศ⋡ࡣྠ୍⤖ᬗ⢏ෆ࡛ࡶሙᡤ࡟ࡼࡗ࡚␗࡞ࡿࡇ࡜ࡶࢃ࠿ࡿ㸬ࡉࡽ࡟㸪ຍᕤㄏ㉳ኚែࡀྍ⬟࡞⢏ෆ࡛࠶ࡗ࡚ࡶ㸪௚ࡢ⢏࡜ࡢቃ⏺௜㏆࡟ᛂຊࡀ㞟୰ࡋ࡚࠸ࡿࡇ࡜࠿ࡽ㸪ࡑࡢ࿘㎶ࡀ◚ቯࡢ㉳Ⅼ࡟࡞ࡿྍ⬟ᛶࡀ㧗࠸࡜⪃࠼ࡽࢀࡿ㸬

Fig. 2 Nominal stress vs nominal strain for the ET and EPT cases.

a)

b)

c)
d)
Fig. 3 (a) Mises stress contour field for the elasto-transformable (ET) bodyand for the elasto-plastic-transformable (ETP) one (b), (c) Transformationvole fraction for the ET and for the ETP (d).
㸲㸬ࡲ࡜ࡵᮏ◊✲࡛ࡣ㸪࣐ࣝࢸࣥࢧ࢖ࢺኚែࢆ⪃៖ࡋࡓ⤖ᬗረᛶ FE ゎᯒࢆᐇ᪋ࡍࡿࡇ࡜࡟ࡼࡾ㸪ᛂຊㄏ㉳ኚែ࡟࡜ࡶ࡞࠺ࣂࣜ࢔ࣥࢺ㑅ᢥ࠾ࡼࡧረᛶኚᙧ࡜ࡢ㛵ಀ࡟ࡘ࠸࡚⪃ᐹࢆ⾜ࡗࡓ㸬௒ᚋ㸪」ᩘࡢ᪉఩ࢆ᭷ࡍࡿከ⤖ᬗయࣔࢹࣝ࡟ᑐࡍࡿኚᙧゎᯒࢆ⾜࠸㸪ᒁᡤⓗ࡞ᛂຊࡦࡎࡳ≧ែ࡟୚࠼ࡿᙳ㡪ࢆ࣑ࢡࣟࡢどⅬ࠿ࡽㄪᰝࡍࡿᚲせࡀ
࠶ࡿ㸬
ཧ⪃ᩥ⊩
1) A.V. Idesman, et.al., Finite element simulations of martensitic phase transitions and microstructures based on astrain softening model, JMPS, 53, 3, 495-523, 2005, 2) Y. Yoshida, et.al., Strength prediction of cold-worked steel tubes by
the crystal plasticity homogenizing method, Trans. JSCES, 14(2), 903-906, 2009㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶタィᏛศ㔝㸧− 136 −

⌧ሙ⁐᥋ᆺᰕᱱ⁐᥋᥋ྜ㒊࡟࠾ࡅࡿᱱ➃௙ཱྀࢹ࢕ࢸ࣮ࣝ࡟㛵ࡍࡿᐇ㦂ⓗ◊✲᪩✄⏣኱Ꮫ ୰㎸ᛅ⏨ࠊቑ⏣㛤ಙᕞ኱ᏛᕤᏛ㒊 㔠Ꮚὒᩥࠊᒸ㔝ᆂభࠊᕳᓥ῟ࠊ᳃ᕝ࿴㍤኱㜰኱Ꮫ ᥋ྜ⛉Ꮫ◊✲ᡤ ሐᡂ୍㑻     㸯㸬┠ⓗࣀࣥࣈࣛࢣࢵࢺ᪉ᘧࡢᰕᱱ᥋ྜ㒊ࡣࠊᕤ஦⌧ሙ࡛ᱱ࢙࢘ࣈࢆ㧗ຊ࣎ࣝࢺᦶ᧿᥋ྜࠊᱱࣇࣛࣥࢪࢆ᏶඲⁐㎸ࡳ⁐᥋᥋ྜࡍࡿΰ⏝᥋ྜࡀ୍⯡ⓗ࡛࠶ࡿࠋᕤ஦⌧ሙ࡛ᱱࣇࣛࣥࢪࢆ⁐᥋ࡍࡿሙྜࠊ᪋ᕤᛶ࠿ࡽୗྥ⁐᥋࡛ࡢ᪋ᕤ࡟࡞ࡿࡓࡵࠊୗࣇࣛࣥࢪࡣෆ㛤ඛ࡜࡞ࡿࠋࡑࡢࡓࡵࠊᱱ࢙࢘ࣈࡀ㑧㨱ᯈ࡜࡞ࡾࠊୖࣇࣛࣥࢪ࡜ྠᵝ࡞ࣀࣥࢫ࢝ࣛࢵࣉࡢࢹ࢕ࢸ࣮ࣝ࡟࡛ࡁ࡞࠸ࠋࡲࡓࠊᰕᱱ᥋ྜ㒊ࡢᱱ➃௙ཱྀ㒊ࡢᛂຊࡣࠊࢫ࢝ࣛࢵࣉᕤἲ࡟࠾࠸࡚
ࢫ࢝ࣛࢵࣉᗏ࡟᭱ࡶ㞟୰ࡍࡿࠋࡑࡇ࡛ᮏ◊✲ࡣࠊࣀࣥࣈࣛࢣࢵࢺ᪉ᘧࡢᱱ➃⌧ሙ⁐᥋㒊ࡢࢫ࢝ࣛࢵࣉᕤἲ࡟
ᑐࡋࠊຊᏛⓗ࡟ᨵၿࡍࡿ᪉ἲࢆᐇ㦂ⓗ࡟᫂ࡽ࠿࡟ࡋࠊࢹ࢕ࢸ࣮ࣝࢆᥦ᱌ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬ᐇ㦂ᴫせ㸰㸬㸯 ᐇ㦂ࣃ࣓࣮ࣛࢱཬࡧヨ㦂యᙧ≧
ヨ㦂యᙧ≧࣭ᑍἲࢆᅗ㸯࡟♧ࡍࠋ⾲㸯࡟⁐᥋᪋ᕤヨ㦂࡟⏝࠸ࡓࢫ࢝ࣛࢵࣉ㒊ࢹ࢕ࢸ୍࣮ࣝぴࢆࠊᅗ㸰㹼㸴࡟ࡑࡢᙧ≧ࢆ♧ࡍࠋヨ㦂యࡣᰕᱱ⁐᥋᥋ྜ㒊ࢆࣔࢹࣝ໬ࡋࡓᐇ኱ࢺᆺヨ㦂య࡜ࡋ࡚ᱱ㒊ᮦ BH-600250
1628ࠊᰕ㒊ᮦ‫ڧ‬-40040025ࠊ㏻ࡋࢲ࢖࢔ࣇ࣒ࣛ࡟ࡣ PL-36 ࢆ⏝࠸ࡓࠋ⌧ሙ⁐᥋᥋ྜᙧᘧࡣࠊ㏻ᖖୖ
ࣇࣛࣥࢪࡢ㛤ඛࢆእ㛤ඛࠊୗࣇࣛࣥࢪࢆෆ㛤ඛ࡜ࡍࡿࡀࠊୗࣇࣛࣥࢪ࡟╔┠ࡋࠊୖୗࣇࣛࣥࢪඹ࡟ෆ㛤ඛ࡜ࡋࡓࠋ୍⯡ࡢࢫ࢝ࣛࢵࣉᙧ≧ࡣ JASS6 ࡛᥎ዡࡉࢀ࡚࠸ࡿ r=35mm ࡢࢫ࢝ࣛࢵࣉᗏ࡟ r=10mm ࡢ㹐ࢆタࡅࡓ」ྜ෇ᆺࢫ࢝ࣛࢵࣉ࡜ࡋࡓࠋᱱࣇࣛࣥࢪ࡜㏻ࡋࢲ࢖࢔ࣇ࣒ࣛࡢ᥋ྜ࡟ࡣ YGW18ࠊȭ1.4mm ࢆ⏝࠸࡚ࠊୗྥࡁጼໃ࡛⾜࠺᏶඲⁐㎸ࡳ⁐᥋᥋ྜ࡜ࡋࡓࠋ࢚ࣥࢻࢱࣈࡣࢫࢳ࣮ࣝࢱࣈࢆ⏝࠸ࡓࠋ࣎ࣝࢺ᥋ྜ᪉ᘧࢆ⏝࠸ࡓᱱ࢙࢘ࣈࡣࢩ࢙࢔ࣉ࣮ࣞࢺ(PL-16)࡛㧗ຊ࣎ࣝࢺᦶ᧿᥋ྜ࡜ࡋࡓࠋ㧗ຊ࣎ࣝࢺࡣࠊM22 ࡢࢺࣝࢩ࢔ᙧ㧗ຊ࣎ࣝࢺ(S10T)ࢆ⏝࠸ࡓࠋ࢙࢘ࣈ⁐᥋᥋ྜᙧᘧࡣࠊᰕ࡟⁐᥋᥋ྜࡉࢀࡓ⿬ᙜ࡚㔠⏝ࣉ࣮ࣞࢺ(PL-12)ࢆ㧗ຊ࣎ࣝࢺᦶ᧿᥋ྜ࡜ࡋࡓࠋᱱ࢙࢘ࣈ࡟ࡣ 35r㛤ඛࢆ᪋ࡋ⁐᥋ࡋࡓࠋ࡞࠾ࠊ௬࣎ࣝࢺࡣ M20 ࡢࢺࣝࢩ࢔ᙧ㧗ຊ࣎ࣝࢺ(S10T)ࢆ 4 ᮏ࡜ࡋࠊࡑࡢࡲࡲṧࡋࡓࠋ㸰㸬㸰 ᥋ྜ㒊ࢹ࢕ࢸ࣮ࣝ
S_S ヨ㦂యࡣࠊᅗ 2 ࡟♧ࡍࡼ࠺࡞」ྜ෇ᆺࡢࢫ࢝ࣛࢵࣉ࡜ࡋࡓࠋᅗ 3 ࡢ S_SP40 ヨ㦂యࠊᅗ 4 ࡢ S_SP55
ヨ㦂యࡣᱱࣇࣛࣥࢪ⁐᥋ᚋ࡟ࢫ࢝ࣛࢵࣉ㒊࡟㗰∦ࢆᤄධࡋࡓࡶࡢ࡛࠶ࡿࠋS_SP40 ヨ㦂యࡢ」ྜ෇ᆺ r=35ࢫ࢝ࣛࢵࣉࡣᚑ᮶ࡢᶆ‽ⓗ࡞ᙧ≧࡛࠶ࡿࠋS_SP55 ヨ㦂యࡣࢫ࢝ࣛࢵࣉᚄࢆ r=42 ࡜ࡋࡓࠋS_SP40 ヨ㦂యࡣࢫ࢝ࣛࢵࣉ㒊࡟㗰∦ࢆᤄධࡍࡿࡇ࡜࡟ࡼࡾᆅ㟈᫬➼࡟◚ቯࡢ㉳Ⅼ࡜࡞ࡾ࠺ࡿࣇ࢕ࣞࢵࢺᗏࡢᛂຊ㞟୰ࢆ⦆− 137 −

࿴ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࡶࡢ࡛࠶ࡿࠋS_SP55 ヨ㦂యࡣ S_SP40 ヨ㦂యࡢ㗰∦ࡼࡾࡉࡽ࡟ࢲ࢖࢔ࣇ࣒ࣛ㒊ࡲ࡛ఙࡤࡋࡓࡶࡢ࡛࠶ࡾࠊࢲ࢖࢔ࣇ࣒ࣛഃ࡟࡞ࡵࡽ࠿࡟ᛂຊࢆఏ㐩ࡏࡿ஦ࢆ┠ⓗ࡜ࡋࡓࡶࡢ࡛࠶ࡿࠋ
ᅗ 5 ࡢ S_MF ヨ㦂యࠊᅗ 6 ࡢ S_ML ヨ㦂యࡣ㛤ඛࡢึᒙഃཬࡧ⾲ᒙഃ࡟ேᕤḞ㝗ࢆᤄධࡋࠊᱱࣇࣛࣥ
ࢪ⁐᥋ᚋࢫ࢝ࣛࢵࣉᚄ r=13 㒊ศࢆ඘ሸ⁐᥋ࡋࡓࡶࡢ࡛࠶ࡿࠋேᕤḞ㝗ࡣࠊ㧗ࡉ 10mm ᖜ 40mm ࡜ࡋࠊዟ⾜ࡁࢆ㛤ඛ࡟ྜࢃࡏࡓ࣮࣒࣎ࣜࣗࡢࣇࣛࢵࢡࢫࢆタ⨨ࡋࡓࠋࡇࡢ୧ヨ㦂యࡣࢫ࢝ࣛࢵࣉᚄࢆᑠᚄ࡜ࡍࡿࡇ࡜
࡟ࡼࡾࠊ㗰∦ࡢᤄධࡣࡏࡎ࡟⁐᥋ࢆ඘ሸࡋࡓࠋ࡞࠾ࠊ㛤ඛ㒊ࡢ⁐᥋࡜ྠ✀ࡢ⁐᥋࣡࢖ࣖࢆ౑⏝ࡋࡓࠋS_ML_W
ヨ㦂యࡣ S_ML ヨ㦂య࡜ྠᵝ࡟⾲ᒙഃ࡟ேᕤḞ㝗ࢆᤄධࡋࠊ࣑ࢽࢫ࢝ࣛࢵࣉ㒊ࢆ඘ሸ⁐᥋ᚋࠊࢩ࢙࢔ࣉࣞ
࣮ࢺࢆ⿬ᙜ࡚㔠࡜ࡋࠊ࢙࢘ࣈ㒊ࢆ❧ྥࡁ࡟࡚⁐᥋᥋ྜࡋࡓࡶࡢ࡛࠶ࡿࠋS_ML_W ヨ㦂యࡣࢫ࢝ࣛࢵࣉࢆ඘
ሸ⁐᥋ࡋࠊ࢙࢘ࣈࢆ㐃⥆ⓗ࡟⁐᥋ࡍࡿࡇ࡜࡛ࠊࣀࣥࢫ࢝ࣛࢵࣉᙧᘧ࡜ࡋࡓࡶࡢ࡛࠶ࡿࠋ

㸰㸬㸱 ⁐᥋᪋ᕤ᮲௳ ᰕᱱ⁐᥋㒊ࡢ⁐᥋᪋ᕤ᮲௳ࢆ⤫୍ࡍࡿほⅬ࠿ࡽ㛤ඛゅᗘ 35rࠊ࣮ࣝࢺ㛫㝸 7.0s0.1mm ࡜ࡋࡓࠋ⁐᥋᏶
஢ᚋࡢእほ᳨ᰝࡢホ౯࡟ࡘ࠸࡚ࡣ㕲㦵⢭ᗘ ᐃᣦ㔪㸸2014㸦ᘓ⠏Ꮫ఍㸧࡟ࡼࡾ⾜ࡗࡓࠋ⁐᥋ᢏ⬟⪅ࡣ⌧ሙ⁐᥋࡟ࡶ⢭㏻ࡋࡓ AW ᳨ᐃ᭷㈨᱁⪅࡜ࡋࡓࠋ⁐᥋᮲௳ࡢタᐃ࡟ᙜࡓࡾࠊᐇ㝿ࡢᕤ஦⌧ሙ⁐᥋࡛ࡣᕤሙ⁐᥋࡟ẚ࡭ࠊసᴗ⎔ቃࡸᘓ᪉≧ἣࠊேဨ➼ࠊᵝࠎ࡞せᅉ࡟ࡼࡾ⁐᥋ධ⇕㔞࡟኱ࡁ࡞ࡤࡽࡘࡁࡀண᝿ࡉࢀࡿࠋࡑࡇ࡛ᙜ
ヱ⁐᥋᪋ᕤ᮲௳ࡢタᐃ࡟ࡘ࠸࡚ࡣࠊ⁐᥋ධ⇕㔞ࢆฟ᮶ࡿ㝈ࡾ㧗ࡵ࡟᪋ᕤࡋࡓࠋ
㸱㸬ࡲ࡜ࡵ
ヨ㦂యࣃ࣓࣮ࣛࢱࠊᱱ➃᥋ྜ㒊ࡢࢹ࢕ࢸ࣮ࣝࠊཬࡧ⁐᥋᪋ᕤ᪉ἲࢆ♧ࡋࡓࠋ௒ᚋࠊ⑂ປヨ㦂࡟ࡼࡾࠊࡑࢀ
ࡒࢀࡢ౪ヨయࡢ⪏ຊ࡟㛵ࡋ࡚⪃ᐹࢆ⾜࠺ࠋ㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶタィᏛศ㔝㸧− 138 −

⥅ᡭ㒊ࡢ⤌⧊ᙧ≧࡟╔┠ࡋࡓ FSW ࢶ࣮ࣝᙧ≧ࡢ᥈⣴㏆␥኱Ꮫ ᕤᏛ㒊⏕⏣ ᫂ᙪ
1. ┠ⓗ ᦶ᧿ᨩᢾⅬ᥋ྜ࡟࠾࠸࡚㸪ᚑ᮶࡜ࡣ␗࡞ࡿタィᛮ᝿࡟ᇶ࡙࠸ࡓ᥋ྜࢶ࣮ࣝࡀᥦ᱌ࡉࢀ࡚ࡁ࡚࠸ࡿ1, 2)㸬ࡇࢀࡽࡢ᥋ྜࢶ࣮ࣝࢆᦶ᧿ᨩᢾ᥋ྜ࡟㐺⏝ࡋࡓሙྜ㸪ረᛶὶື≧ែ࡟ᑐࡋ࡚᭷ຠᛶࡢ࠶ࡿྍ⬟ᛶࡀ♧၀ࡉࢀ࡚ࡁ
࡚࠸ࡿ㸬୍᪉㸪ᦶ᧿ᨩᢾ᥋ྜࡢ฼⏝ᣑ኱ࡢࡓࡵ࡟㸪㕲㗰ᮦᩱ࡬ࡢ㐺⏝ࡀࡍࡍࡵࡽࢀ࡚࠸ࡿࡀ㸪ࡇࡇ࡛ࡶ᥋ྜ
ࢶ࣮ࣝࡢᯝࡓࡍᙺ๭ࡣ኱ࡁ࡞ࡶࡢࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࢀࡽࡢࡇ࡜࠿ࡽ㸪ᮏ◊✲࡛ࡣ㸪㗰⏝ᦶ᧿ᨩᢾ᥋ྜ
ࢶ࣮ࣝࢆᛕ㢌࡟㸪ᨩᢾ⬟ຊ࡟ඃࢀࡿྍ⬟ᛶࡢ࠶ࡿᦶ᧿ᨩᢾⅬ᥋ྜ⏝ࢶ࣮ࣝࢆ⏝࠸࡚㸪ࡑࡢ㐺⏝ᛶࢆㄪᰝࡍࡿ
ࡓࡵ㸪࢔࣑ࣝࢽ࣒࢘ྜ㔠ࢆ⏝࠸ࡓᦶ᧿ᨩᢾ᥋ྜࢆᐇ᪋ࡋ㸪᥋ྜࢶ࣮ࣝᙧ≧ࡢ㐪࠸ࡀ⥅ᡭࡢ⤌⧊ᙧ≧࡟࠾ࡼࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬
2. ◊✲᪉ἲᐇ㦂ᮦᩱࡣ㸪ᯈཌ 3mm ࡢ A5052-H34 ࢔࣑ࣝࢽ࣒࢘ྜ㔠ᯈࢆ౑⏝ࡋࡓ㸬ࢶ࣮ࣝ࡟ࡣᅗ 1 ࡟♧ࡍ෇ᰕᆺ㸪୕
ゅᰕᆺ࠾ࡼࡧ᭶ᆺࣉ࣮ࣟࣈࢶ࣮ࣝ㸦௨ୗ㸪ࡑࢀࡒࢀ C㸪3F ࠾ࡼࡧ DM ࢶ࣮ࣝ㸧ࢆ⏝࠸࡚ࢫࢱ࣮࢖ࣥࣉ࣮ࣞࢺ
ࡢᦶ᧿ᨩᢾ᥋ྜࢆ⾜ࡗࡓ㸬࡞࠾㸪ࢶ࣮ࣝࡢᮦ㉁ࡣ⇕ฎ⌮ࡉࢀࡓ SKD61 ࡛㸪ࢩࣙࣝࢲ㒊ࡢ┤ᚄࡣ࠸ࡎࢀࡶ 10mm࡛࠶ࡿ㸬᥋ྜ᮲௳ࡣ࠸ࡎࢀࡢࢶ࣮ࣝࡶ᥋ྜ㊥㞳 100mm ࡛㸪๓㐍ゅࢆ 0 ࠾ࡼࡧ 3r㸪᥋ྜ㏿ᗘࢆ 100㹼500mm/minࡢ⠊ᅖ࡛ኚ໬ࡉࡏࡓ㸬⥅ᡭࡢホ౯ࡣ㸪⥅ᡭ᩿㠃ࡢ⤌⧊ほᐹࢆ⾜࠺࡜࡜ࡶ࡟㸪ࡑࡢ⤖ᯝ࠿ࡽ⏬ീฎ⌮࡟ࡼࡗ࡚ᦶ᧿ᨩᢾ᥋ྜ㒊┦ᙜ㡿ᇦࡢᨩᢾ㡿ᇦࡢ኱ࡁࡉࢆᐃ㔞໬ࡋࡓ㸬ࡲࡓ㸪⤌⧊ほᐹ࡜ྠᵝࡢ᮲௳࡛✺ࡁྜࢃࡏ⥅ᡭࢆస〇ࡋ㸪ᘬᙇᙉࡉࢆㄪ࡭ࡓ㸬ᘬᙇヨ㦂∦ᙧ≧ࡣ᥋ྜ㒊ࡀᖹ⁥㒊୰ᚰ࡟࡞ࡿࡼ࠺ᶵᲔຍᕤ࡟ࡼࡾᖜ 10mm㸪ᖹ⁥㒊㛗ࡉ 24mm ࠾ࡼࡧཌࡉ 1mm ࡢᖹᯈヨ㦂∦࡜ࡋ㸪ᘬᙇ㏿ᗘ 0.5mm/min ࡛ヨ㦂ࢆ⾜ࡗࡓ㸬
3. ⤖ᯝ
 ᅗ 2 ࡣྛࢶ࣮ࣝࢆ⏝࠸࡚ᦶ᧿ᨩᢾ᥋ྜࢆ⾜ࡗࡓሙྜ࡟࠾ࡅࡿ⥅ᡭ᩿㠃ࡢ⤌⧊ほᐹ⤖ᯝࡢ୍౛ࢆ♧ࡋࡓࡶࡢ࡛࠶ࡿ㸬๓㐍ゅ 0°ࡢሙྜ㸪ࡍ࡭࡚ࡢࢶ࣮ࣝ࡟࠾࠸࡚࣮࣒࣮࣡࣍ࣝ≧ࡢḞ㝗ࡀほᐹࡉࢀࡓ㸬࡞࠾㸪ࡇࡢḞ㝗Ⓨ⏕ࡣ࠸ࡎࢀࡢࢶ࣮࡛ࣝࡶ࡯ࡰࡍ࡭࡚ࡢ᥋ྜ㏿ᗘ࡛ほᐹࡉࢀࡓ㸬୍᪉㸪๓㐍ゅ 3°ࡢሙྜ㸪࠸ࡎࢀࡢࢶ࣮࡛ࣝࡶ
࡯ࡰࡍ࡭࡚ࡢ᥋ྜ㏿ᗘ࡛ࡇࡢࡼ࠺࡞Ḟ㝗ࡣほᐹࡉࢀ࡞࠿ࡗࡓ㸬ࡇࢀࡽࡢࡇ࡜࠿ࡽ㸪ᮏᐇ㦂࡛౑⏝ࡋࡓࢶ࣮ࣝ
࡟࠾࠸࡚๓㐍ゅࡢ௜୚ࡣ೺඲࡞᥋ྜ㒊ࢆᚓࡿࡓࡵࡢᚲ㡲᮲௳࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ᅗ 3 ࡣ㸪ᨩᢾ㡿ᇦ࡟ࡘ࠸࡚⏬ീฎ⌮࡟ࡼࡾᐃ㔞໬ࡋࡓ๓㐍ゅ 3°࡟࠾ࡅࡿ⤖ᯝࢆ♧ࡋࡓࡶࡢ࡛࠶ࡿ㸬 C ࠾
ࡼࡧ 3F ࢶ࣮ࣝ࡟࠾࠸࡚ࡣ㸪᥋ྜ㏿ᗘࡀቑຍࡍࡿ࡜ᨩᢾ㡿ᇦࡶࢃࡎ࠿࡟ቑຍࡍࡿഴྥࢆ♧ࡋࡓࡀ㸪DM ࢶ࣮ࣝ࡟࠾࠸࡚ࡣ㸪᥋ྜ㏿ᗘࡀቑຍࡍࡿ࡜ᨩᢾ㡿ᇦࡣῶᑡࡍࡿഴྥࢆ♧ࡋࡓ㸬DM ࢶ࣮ࣝ࡟࠾ࡅࡿഴྥࡣ㸪๓㐍ゅ࡟ࡼࡾ㸪㐍⾜᪉ྥ࡬ࡢࣉ࣮ࣟࣈᢞᙳ㠃✚ࡢῶᑡࡸ㸪ษࢀลࡢࡼ࠺࡞ຠᯝࡀᮇᚅࡉࢀࡿࣉ࣮ࣟࣈഃ㠃ࡢ࢚ࢵࢪࡢᙺ๭ࡀపୗࡋࡓࡢ࡛ࡣ࡞࠸࠿⪃࠼ࡽࢀࡿ㸬୍᪉㸪DM ࢶ࣮ࣝ࡜ࡣᨩᢾ㐣⛬ࡀ␗࡞ࡿࡇ࡜ࡀண᝿ࡉࢀࡿ C ࠾
ࡼࡧ 3F ࢶ࣮ࣝࡢሙྜ㸪ࢶ࣮ࣝࡀᮦᩱෆࢆ⛣ືࡍࡿ㝿ࡢረᛶኚᙧࡀᨩᢾ㡿ᇦࢆ኱ࡁࡃࡍࡿ⤖ᯝࢆ♧ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀ㸪ᨩᢾ㡿ᇦ㠃✚ࡔࡅ࡛ࡣᐇ㝿ࡢᨩᢾࡢ⛬ᗘࢆ♧ࡋ࡚࠸࡞࠸ྍ⬟ᛶࡀ⪃࠼ࡽࢀࡿ㸬ᅗ 4 ࡣ㸪๓㐍ゅ 3°࡟࠾ࡅࡿ㸪ྛࢶ࣮ࣝࢆ⏝࠸࡚స〇ࡋࡓ✺ࡁྜࢃࡏᦶ᧿ᨩᢾ᥋ྜ⥅ᡭࡢᘬᙇヨ㦂⤖ᯝࢆ♧(a) ෇ᰕᆺࣉ࣮ࣟࣈࢶ࣮ࣝ (b) ୕ゅᰕᆺࣉ࣮ࣟࣈࢶ࣮ࣝ
ᅗ 1 ᥋ྜࢶ࣮ࣝࡢᙧ≧࠾ࡼࡧᑍἲ

− 139 −

(c) ᭶ᆺࣉ࣮ࣟࣈࢶ࣮ࣝ   ᅗ 2 ᦶ᧿ᨩᢾ᥋ྜ㒊ࡢ⤌⧊ほᐹ⤖ᯝ౛㸦᥋ྜ㏿ᗘ㸸600mm/min㸧
300

15

FSW conditions
Tool rotational speed: 1500rpm
Penetration depth from tool tip: 2.3mm
Tool angle: 3r

FSW conditions
Tool rotational speed: 1500rpm
Penetration depth from tool tip: 2.3mm
Tool angle: 3r

Tensile strength, MPa

Area of stir zone, mm2

20

3F tool
C toolDM tool

200

10

100

5
3F tool
C toolDM tool

0

100

200

300

400



0

500

Traveling speed, mm/min

100

200

300

400

500

Traveling speed, mm/min

ᅗ 3 ᦶ᧿ᨩᢾ㡿ᇦ㠃✚࡜᥋ྜ㏿ᗘ࡜ࡢ㛵ಀ

ᅗ 4 ᘬᙇᙉࡉ࡜᥋ྜ㏿ᗘ࡜ࡢ㛵ಀࡋࡓࡶࡢ࡛࠶ࡿ㸬᥋ྜ㏿ᗘࡀቑຍࡍࡿ࡜㸪࠸ࡎࢀࡢࢶ࣮ࣝࢆ⏝࠸ࡓሙྜ࡛ࡶ⥅ᡭࡢᘬᙇᙉࡉࡣྠᵝ࡟పࡃ࡞ࡗࡓ㸬ࡇࡢ୰࡛㸪3F ࢶ࣮ࣝࢆ⏝࠸ࡓሙྜ㸪᥋ྜ㏿ᗘ 200m/min ࡛ࡣ 222MPa ࡢᘬᙇᙉࡉ࡜࡞ࡾ㸪ẕᮦᙉᗘ࡟㏆࠸⥅ᡭᙉᗘࢆ♧ࡋࡓ㸬ࡇࢀࡽࡢࡇ࡜࠿ࡽ㸪ᨩᢾ㐣⛬ࢆᦶ᧿࡟ࡼࡿᨩᢾ࠿ࡽࡏࢇ᩿ኚᙧࢆಁ㐍ࡋ࡚ᨩᢾࡍࡿ
ពᅗ࡛タィࡉࢀ࡚࠸ࡿࢶ࣮ࣝࡢ୰࡛㸪୰㛫ⓗ࡞≉ᚩࢆᣢࡘ࡜⪃࠼ࡽࢀࡿ 3F ࢶ࣮ࣝࡀ㸪ᮏᐇ㦂ࡢ⠊ᅖ࡟࠾࠸࡚ࡣ᭱ࡶ㧗࠸ᛶ⬟ࢆᣢࡘྍ⬟ᛶࡀ♧ࡉࢀࡓ㸬
4. ⤖ㄽ ᦶ᧿ᨩᢾⅬ᥋ྜ⏝ࢶ࣮ࣝࢆ⏝࠸࡚ࢶ࣮ࣝᙧ≧ࡢ㐪࠸ࡀ⥅ᡭࡢ⤌⧊ᙧ≧࡟࠾ࡼࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ㸪ᦶ᧿ᨩᢾ᥋ྜ㒊ࡢᨩᢾ㡿ᇦࡢ᳨ウࢆ⾜ࡗࡓ⤖ᯝ㸪௨ୗࡢࡇ࡜ࡀࢃ࠿ࡗࡓ㸬(1) ࠸ࡎࢀࡢࢶ࣮ࣝࢆ⏝࠸ࡿሙྜ࡛ࡶ㸪Ḟ㝗Ⓨ⏕࡟ᑐࡋ࡚๓㐍ゅࡢᙳ㡪ࡀ኱ࡁ࠸㸬(2) ᨩᢾ㡿ᇦ㠃✚࡜᥋ྜ㏿ᗘ࡜ࡣẚ౛ⓗ࡞㛵ಀࢆ♧ࡋࡓ㸬(3) ୕ゅᰕᆺࣉ࣮ࣟࣈࢶ࣮ࣝࢆ⏝࠸ࡓሙྜ㸪100㹼200mm/min ⛬ᗘࡢ᥋ྜ㏿ᗘ࡟࠾࠸࡚ẕᮦᙉᗘ࡟㏆࠸⥅ᡭᙉᗘࢆ♧ࡋࡓ㸬5. ཧ⪃ᩥ⊩1) ⏕⏣᫂ᙪ㸪T. H. North㸪ிᴟ⚽ᶞ㸸⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫせ㸪95(2014)㸪44-452) ⏕⏣᫂ᙪ㸪T. H. North㸸⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫせ㸪96(2015)㸪64-65㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 140 −

㕲㗰ᮦᩱ䛾ᦶ᧿ᨩᢾ᥋ྜ䠄FSW䠅䛸⥅ᡭ䛾ᶵ⬟ホ౯ᅜ❧኱Ꮫἲே ᮾி኱Ꮫ ኱Ꮫ㝔ᕤᏛ⣔◊✲⛉ఀ⸨ ᾏኴ
1. ┠ⓗᦶ᧿ᨩᢾ᥋ྜ㸦Friction Stir Welding, FSW㸧ࡣඛ➃࡟ฝ㒊㸦ࣉ࣮ࣟࣈ, ࣆࣥ㸧ࢆᣢࡘࢶ࣮ࣝࢆᅇ㌿ࡉࡏ࡞ࡀࡽ㔠ᒓᮦᩱ୰࡟ᢲࡋ㎸ࡳࠊᦶ᧿⇕࡛⼥Ⅼ௨ୗ࡟ຍ⇕ࡋ࡚㌾໬ࡉࡏࡿ࡜ྠ᫬࡟ረᛶὶືࢆ㉳ࡇࡋ࡚ᨩᢾࡍࡿᅛ┦᥋ྜἲࡢ୍
✀࡛࠶ࡿࠋᚑ᮶ᮏᡭἲࡣ࢔࣑ࣝࢽ࣒࢘ࠊ࣐ࢢࢿࢩ࣒࢘࡞࡝ࡢప⼥Ⅼ㔠ᒓ࡬ࡢᛂ⏝ࡀ୺࡛࠶ࡗࡓࡀࠊࡼࡾ◳ࡃ㧗⼥Ⅼࡢࢶ࣮ࣝᮦᩱ࡟㛵ࡍࡿ◊✲ࡀ㐍ࡳࠊ㏆ᖺࡣ㗰࡟ᑐࡋ࡚ࡶᛂ⏝ࡀᣑ኱ࡋࡘࡘ࠶ࡿࠋFSW ࡣ⁐⼥⁐᥋ࡼࡾᑠࡉ࡞ධ⇕㔞࡛᥋ྜྍ⬟࡛࠶ࡿࡓࡵ᥋ྜ㒊ࡢኚᙧࡸḞ㝗ࡣ⏕ࡌ࡟ࡃ࠸ࡀࠊධ⇕㔞ࡢ㐣୙㊊࡟ࡼࡗ࡚ࡣ᥋ྜ୙Ⰻࡸࢶ࣮ࣝࡢ◚ᦆࢆ㉳ࡇࡋࡸࡍ࠸ࠋࡋ࠿ࡋࠊࡇࢀࡽࡢ୙Ⰻࢆࣜ࢔ࣝᅗ 1) FSW ࡢᶍᘧᅗࢱ࢖࣒࡟ࣔࢽࢱࣜࣥࢢࡍࡿᡭἲࡣ☜❧ࡉࢀ࡚࠸࡞࠸ࠋAcoustic Emission(AE) ἲࡣᮦᩱ୰ࡢᚤどᦆയࡸኚᙧࢆྠ
᫬࡟⏕ࡌࡿᙎᛶἼ࡟ࡼࡗ᳨࡚ฟࡍࡿ in-situ ࡢ㠀◚ቯホ౯ᡭἲ࡛࠶ࡿࡓࡵࠊୖ㏙ࡢ┠ⓗ࡟᭷⏝࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࡀࠊFSW ࡟ࡼࡿ᥋ྜ୰ࡣࣀ࢖ࢬࡀ㢧ⴭ࡛࠶ࡿࡓࡵ㐺⏝ࡀᅔ㞴࡛࠶ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊAE ಙྕࡢฎ⌮࡟⊂⮬
㛤Ⓨࡢ㐃⥆Ἴᙧグ㘓⿦⨨ࢆ⏝࠸࡚ࣀ࢖ࢬࢆపῶࡋࠊ㗰ᯈࡢ FSW ୰࠾ࡼࡧ FSW ᚋࡢ AE ࢆィ ࡋࠊ᥋ྜ୙Ⰻ࡜ࢶ
࣮ࣝ◚ᦆࡢ᳨ฟ࠾ࡼࡧண ࢆ⾜࠺ࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ2. ◊✲᪉ἲ
ఀ⸨ࡀ㛤Ⓨࡋࡓ AE Ἴᙧ㐃⥆ィ ࠾ࡼࡧゎᯒࢩࢫࢸ࣒ࠕCWMࠖ[1]ࢆ฼⏝ࡋ࡚ࠊ㗰ᯈࡢ✺ࡁྜࢃࡏ FSW ࡟ࡘ࠸࡚ࠊ᥋ྜ୰࠿ࡽ᥋ྜ┤ᚋ࡟࠿ࡅ࡚ࡢࣔࢽࢱࣜࣥࢢࢆ⾜ࡗࡓࠋᅗ 2 ࡟ヨᩱ࡜ AE ࢭࣥࢧタ⨨ࡢᶍᘧᅗࠊᅗ 3 ࡟ヨ㦂⿦⨨ࡢ෗┿ࢆ♧ࡍࠋヨᩱࡣ 200×50×2 mm ࡢ S45C ᯈ 2 ᯛࡢ✺ࡁྜࢃࡏࠊࡲࡓࡣ᥋ྜࡍࡿ 2 ᯛࡢᯈࡢ⏺㠃ࡢᦶ᧿
ࡢ AE Ἴᙧ࡬ࡢᙳ㡪ࢆ☜ㄆࡍࡿࡓࡵ 200×100×2 mm ࡢ S45C ᯈ㸯ᯛ࡛ࡢ stir-in-plate ࡜ࡋࡓࠋࢶ࣮ࣝࡣࢩࣙࣝࢲ
ᚄ 12 mm ࣉ࣮ࣟࣈᚄ 4 mmࠊᤄධ㔞ࡣ 1.8㹼1.9 mmࠊ๓㐍ゅࡣ 3°࡜࠸࠺᮲௳ࢆᅛᐃ࡜ࡋ࡚ࠊࢶ࣮ࣝᅇ㌿ᩘ࡜᥋ྜ㏿ᗘࢆྍኚ࡜ࡋ࡚ᐇ㦂ࢆ⾜ࡗࡓࠋ᥋ྜࡣヨᩱ୰ኸࡢ㛗ࡉ 100 mm ࡟ᑐࡋ࡚⾜ࡗࡓࠋAE ࢭࣥࢧࡣ㧗ឤᗘࡢᐩኈࢭࣛ
࣑ࢵࢡࢫ♫〇 M304A ࢆ 4 ch ౑⏝ࡋࡓࠋCWM ࡛ࢭࣥࢧࡢฟຊ㟁ᅽࢆࣞࣥࢪ ±5 Vࠊ㢖ᗘ 10 MSamples/sࠊゎീᗘ 12 bit ࡛㐃⥆ⓗ࡟ࢧࣥࣉࣜࣥࢢࡋࠊ඲Ἴᙧࢆࣁ࣮ࢻࢹ࢕ࢫࢡ࡟グ㘓ࡋ࡞ࡀࡽࣜ࢔ࣝࢱ࢖࣒࡟Ἴᙧゎᯒࢆ⾜ࡗ࡚AE ஦㇟ࢆᢳฟࡋࠊⓎ⏕఩⨨ࢆᶆᐃࡋࡓࠋᅗ 2) 㗰ᮦ FSW AE ࣔࢽࢱࣜࣥࢢᐇ㦂ᑍἲᅗ          ᅗ 3) ᐇ㦂⿦⨨෗┿− 141 −

3. ⤖ᯝ࡜⪃ᐹ
FSW ࢶ࣮ࣝ࡜ヨᩱࡢᦶ᧿࡟࡜ࡶ࡞ࡗ࡚㠀ᖖ࡟ᙉ࠸ࣀ࢖ࢬࡀィ ࡉࢀࡓࡀࠊࡇࢀࡣ CWM ࡢෆⶶࢯࣇࢺ࢙࢘࢔࡛
ࣁ࢖ࣃࢫࣇ࢕ࣝࢱ 100 kHz ࢆ㐺⏝ࡍࡿࡇ࡜࡛༑ศ㝖ཤ࡛ࡁࠊAE ࡢ఩⨨ᶆᐃࡀྍ⬟࡞ S/N ẚࡢ㧗࠸Ἴᙧࡀᚓࡽࢀࠊ
᥋ྜヨ㦂 1 ᅇ࠶ࡓࡾ᭱኱࡛ᩘⓒࡢ AE ஦㇟ࡀᶆᐃ࡛ࡁࡓࠋᅗ 4㹼5 ࡟ AE ஦㇟ࡢ᳨ฟ⤖ᯝࢆ♧ࡍࠋᅗ୰ࡢ୸༳ࡣࡑ
ࢀࡒࢀࡀ 1 ಶࡢ AE ஦㇟ࢆ⾲ࡋ࡚࠾ࡾࠊ⦪㍈࡜ᶓ㍈ࡣࡑࢀࡒࢀ᳨ฟ᫬้࡜᥋ྜ⥺ୖࡢᶆᐃ఩⨨ࠊⰍ࡜኱ࡁࡉࡣ᭱
኱᣺ᖜࢆ♧ࡋ࡚࠾ࡾࠊࡇࢀࡣ AE ࢆⓎ⏕ࡉࡏࡓᚤᑠḞ㝗ࡢ኱ࡁࡉ࡟┦㛵ࡀ࠶ࡿࠋᅗ 4 ୰ࡔ࡜ࣆࣥࢡࡢ⠊ᅖࡀ᥋ྜ๓ࠊࣈ࣮ࣝࡢ⠊ᅖࡀ᥋ྜᚋ࡜࡞ࡿࠋᅗ 4 ࡟♧ࡋࡓ࣐ࣝࢸࣥࢧ࢖ࢺኚែࢆ㉳ࡇࡉ࡞࠸ࡼ࠺ධ⇕㔞ࢆⴠ࡜ࡋࡓሙྜ㸦100
rpm, 100 mm/min㸧࡛ࡣ㢧ⴭ࡞ AE ࡀ᳨ฟࡉࢀ࡞࠿ࡗࡓࡀࠊᅗ 5 ࡟♧ࡋࡓ࣐ࣝࢸࣥࢧ࢖ࢺኚែࡀⓎ⏕ࡍࡿ᥋ྜ᮲
௳㸦400 rpm, 250 mm/min㸧࡛ࡣ᥋ྜ࠿ࡽᩘ⛊㐜ࢀ࡚ከᩘࡢ AE ஦㇟ࡀ᳨ฟࡉࢀࡓࠋࡓࡔࡋࠊࡇࡢ࡜ࡁࠊ᥋ྜ㏵
୰࡛኱᣺ᖜࡢ AE ஦㇟ࢆ᳨ฟࡋ࡚࠿ࡽ 2 ⛊㛫 AE ஦㇟ࡀ᳨ฟࡉࢀ࡞࠸≉␗࡞᫬㛫ࡀ࠶ࡗࡓࠋࡑࡇ࡛ࠊࡇࢀ࡟ࡼࡗ࡚
AE ࡢ᳨ฟࡀᑡ࡞࠿ࡗࡓ x = 0 mm ௜㏆ࡢ᥋ྜ⥺࡟ἢࡗࡓ᩿㠃ࢆほᐹࡋࡓ⤖ᯝࢆᅗ 6 ࡟♧ࡍࠋࡍࡿ࡜ࠊx = +3 mmࡢ୍࢝ᡤࡢࡳ࣐ࣝࢸࣥࢧ࢖ࢺࡀ௚ࡼࡾᑡ࡞࠸⟠ᡤࡀぢࡽࢀࡓࠋࡇࡢࡇ࡜࠿ࡽࠊ๓㏙ࡢ᥋ྜ࠿ࡽᩘ⛊㐜ࢀ࡚ከᩘ᳨ฟ
ࡉࢀࡓ AE ஦㇟ࡣࠊ᥋ྜᚋࡢᛴ෭࡟ࡼࡿ࣐ࣝࢸࣥࢧ࢖ࢺኚែ࡟࡜ࡶ࡞࠺య✚ኚ໬ࢆ᳨ฟࡋࡓࡶࡢ࡜ᛮࢃࢀࡿࠋ࣐ࣝ
ࢸࣥࢧ࢖ࢺኚែ࡟࡜ࡶ࡞࠺ AE ஦㇟ࡢ᳨ฟࡣࠊ㗰ࡢ MIG ⁐᥋ࡢ AE ࣔࢽࢱࣜࣥࢢ࡛ࡶぢࡽࢀࡓࡶࡢ࡛࠶ࡿ[2]ࠋࡉ
ࡽ࡟ࠊ኱᣺ᖜࡢ AE ஦㇟᳨ฟᚋ࡟ᩘ⛊㛫 AE ஦㇟ࡀ᳨ฟࡉࢀ࡞࠿ࡗࡓࡇ࡜ࡣࠊࡇࡢ࡜ࡁヨᩱࡀ⿬ᯈ࠿ࡽᾋࡁୖࡀࡾ
ᨺ⇕ࡀᙅࡲࡗࡓࡇ࡜࡟ࡼࡾࠊ࣐ࣝࢸࣥࢧ࢖ࢺኚែࡢ㛤ጞࡀ㐜ࢀࡓࡓࡵࡔ࡜⪃࠼ࡽࢀࡿࠋ

ᅗ 4) పධ⇕᮲௳࡛ࡢ AE ஦㇟᳨ฟ⤖ᯝ       ᅗ 5) 㧗ධ⇕᮲௳࡛ࡢ AE ஦㇟᳨ฟ⤖ᯝ
4. ⤖ㄽ
 ࣐ࣝࢸࣥࢧ࢖ࢺኚែࢆ AE ἲ࡛㧗⢭ᗘ࡟᳨ฟࡋ఩⨨ᶆᐃࡍࡿࡇ࡜࡟ࡣᡂຌࡋࡓࡀࠊ⁁≧Ḟ㝗࡞࡝ࡢ௚✀ࡢḞ㝗ࠊࢶ࣮ࣝ◚ᦆࡢ๓඙⌧㇟ࡢ᳨ฟ࡟ࡘ࠸࡚ࡣ༑ศ࡞᳨ドࡀ⾜࠼࡞࠿ࡗࡓࠋ௒ᚋ
ࡣ AE Ἴࡢィ ᪉ἲ࠾ࡼࡧฎ⌮᪉ἲࢆᨵၿࡋࡇ
ࢀࡽࡢḞ㝗ࡢ᳨ฟࢆྍ⬟࡟ࡍࡿࡇ࡜ࢆ┠ᣦࡍ࡜࡜ࡶ࡟ࠊ࣐ࣝࢸࣥࢧ࢖ࢺኚែࡢ᳨ฟ࡟ࡘ࠸࡚ࡶࠊ
◳ࡉヨ㦂ࡸ ᗘィ ࡢ⤖ᯝ࡜ẚ㍑ࡍࡿࡇ࡜࡛ࡼࡾヲࡋࡃホ౯ࡍࡿࡇ࡜ࢆ᳨ウࡋ࡚࠸ࡿࠋᅗ 6) ᅗ 5 ヨᩱࡢ x = 0 mm ௜㏆ࡢ᩿㠃ほᐹ⤖ᯝ

5. ཧ⪃ᩥ⊩[1] K. Ito and M. Enoki, Matar. Trans. 48(6) (2007) 1221.
[2] T. Kasuya et al, Welding in the World, 59(2013) 76-84.
㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 142 −

ᦶ᧿᧠ᢾฎ⌮ࡉࢀࡓ㗪㐀⏝࢔࣑ࣝࢽ࣒࢘ྜ㔠 ADC12 ࡢ࣑ࢡࣟ⤌⧊ゎᯒ㤶ᕝ㧗➼ᑓ㛛Ꮫᰯఀ⸨ ຮ1.

3. ⤖ᯝ࠾ࡼࡧ⪃ᐹ⥴ゝ Al-Si ⣔ྜ㔠࡛࠶ࡿ ADC12 ࡣࡑࡢ࣑ࢡࣟ⤌⧊࡟㠀ᅛ Fig. 1 ࡟ẕᮦ㸦Base Metal: BM㸧࠾ࡼࡧ᧠ᢾ㒊㸦Stir⁐ᛶࡢ Si ᬗฟ┦ࢆྵࢇࡔྜ㔠࡛࠶ࡿࡀ㸪ࡇࢀࢆᦶ᧿ᨩ

Zone: SZ㸧ࡢ࣑ࢡࣟ⤌⧊ࢆ♧ࡍ㸬ᮏྜ㔠ࡣࢲ࢖࢝ࢫࢺ

ᢾฎ⌮㸦Friction Stir Processing: FSP㸧࡛ᚤ⣽ศᩓ࡛ࡁࢀ

ᮦ࡛࠶ࡿࡓࡵ BM ࡟ࡣ➨ 2 ┦⢏Ꮚࡀᯈ≧࣭⢏≧࡟ᬗฟࡤศᩓᙉ໬ࡸ෌⤖ᬗᚋࡢ⢏ᡂ㛗ࡢࣆࣥṆࡵຠᯝ࡟ࡼࡗ

ࡋ࡚࠸ࡿࡀ㸪SZ ࡛ࡣ๓㏙ࡢ➨ 2 ┦⢏Ꮚࡀ FSP ࡟ࡼࡾ࡚⤖ᬗ⢏ᚤ⣽໬ࡍࡿࡇ࡜ࡀ࡛ࡁ㸪ᮦᩱࡢ㧗ᙉᗘ໬ࡢྍ

◚○ࡉࢀẕ┦୰࡟⢏≧࡟ศᩓࡋ࡚࠸ࡿ㸬Fig. 2 ࡟♧ࡍ⬟ᛶࡀᮇᚅ࡛ࡁࡿ㸬ᮏ◊✲࡛ࡣ㸪ࡑࡢᬗฟ┦ࢆᚤ⣽ศ

BM ࠾ࡼࡧ SZ ࡢ㠃ศᯒ⤖ᯝࡼࡾ㸪BM ࡛ࡣ Si ༢┦㸪ᩓࡉࡏࡿᡭẁ࡜ࡋ࡚ FSP ࢆ⏝࠸ࡓ㸬FSP ࡟㛵ࡍࡿ◊✲Fe ⣔໬ྜ≀㸪Cu ⣔໬ྜ≀ࡢᏑᅾࡀㄆࡵࡽࢀࡿࡀ㸪SZࡣࡇࢀࡲ࡛୺࡜ࡋ࡚ẕ┦ࡢ⤖ᬗ⢏ᚤ⣽໬࡟╔┠ࡋࡓෆ࡟ࡣ Cu ⣔໬ྜ≀ࡢࢥࣥࢺࣛࢫࢺࡀㄆࡵࡽࢀ࡞࠸㸬ࡇᐜࡀ୺ὶ࡛࠶ࡗࡓ㸬ࡑࡇ࡛ᮏ✏࡛ࡣ㸪ADC12 ࢆࣔࢹࣝࢀࡣ Al-Cu ⣔ࡢྜ㔠࡟࠾࠸࡚௦⾲ⓗ࡞ᯒฟ┦࡛࠶ࡿྜ㔠࡜ࡋ࡚FSP ࡟ࡼࡿᬗฟ┦ࡢᚤ⣽ศᩓࡢྍ⬟ᛶࢆ࣑

CuAl2 ┦ࡀ FSP ࡟ࡼࡗ࡚෌ᅛ⁐ࡋ࡚࠸ࡿྍ⬟ᛶࡀ⪃࠼ࢡࣟ⤌⧊ほᐹ࠿ࡽ᳨ウࡋࡓ⤖ᯝࢆሗ࿌ࡍࡿ㸬ࡽࢀࡿ㸬
Fig. 3 ࡟ EBSP ࡟ࡼࡗ࡚ᚓࡽࢀࡓ BM ࡜ SZ ࡢ IPF ࣐

2. ᪉ἲ ࢩࣙࣝࢲ࣮┤ᚄI14㸪ࣉ࣮ࣟࣈ┤ᚄ M6㸪ࣉ࣮ࣟࣈ㛗ࢵࣉࢆ♧ࡍ㸬BM ࡟࠾ࡅࡿᖹᆒ⤖ᬗ⢏ᚄࡣ⣙ 9.6 Pm ࡛

ࡉ 2.4 mm ࡢ FSP ᕤලࢆ⏝࠸ࡓ㸬FSP ᮲௳ࡣ㸪ᕤලᅇ࠶ࡿࡢ࡟ᑐࡋ㸪FSP ᚋࡢ SZ ࡛ࡣ㸪BM ࡟ẚ࡭࡚ᚤ⣽࡞㌿ᩘ㸦NR㸧⠊ᅖࢆ 800㹼1600 rpm㸪ᕤල⛣ື㏿ᗘ㸦v㸧⤖ᬗ⢏ࡀᚓࡽࢀࡓ㸬BM ࠾ࡼࡧ SZ ࡢ࡝ࡕࡽ࡟࠾࠸࡚

ࡢ⠊ᅖࢆ 60㹼300 mm/min㸪ᕤලഴゅࢆ๓㐍 3 deg㸬㸪ࡶ⤖ᬗ⢏⏺࡟࡯࡜ࢇ࡝ࡢ➨ 2 ┦⢏Ꮚࡀศᕸࡋ࡚࠸ࡿࡇ

ึᮇᕤලᤄධ㔞ࢆ 2.5 mm㸪ᕤලᅇ㌿᪉ྥࢆ཯᫬ィᅇࡾ࡜࠿ࡽ㸪ࡇࢀࡽࡢ⢏Ꮚࡀ FSP ᚋࡢ⢏ᡂ㛗ࢆࣆࣥṆࡵ࡜ࡋ㸪౪ヨᮦࡢᯈᖜࡢ୰ኸ㒊࡟ᑐࡋ㛗ࡉ 110 mm ࡢ⠊ᅖࢆᐊ 㸪኱Ẽ୰࡛⾜࡞ࡗࡓ㸬 ほᐹヨᩱࢆ⪏Ỉ࢚࣓࣮ࣜ⣬ 㸦#800㹼#4000㸧࡛⢒◊☻ࡋࡓࡢࡕ㸪ࢲ࢖ࣖࣔࣥࢻ࣮࣌ࢫࢺ㸦ࢲ࢖ࣖࣔࣥࢻ⢏ᗘ㸹3 ࠾ࡼࡧ 1 Pm㸧࡟ࡼࡿࣂࣇ◊☻࡟ࡼࡾほᐹ㠃ࢆ㙾㠃࡟௙ୖࡆࡓ㸬ḟ࠸࡛㸪࢖࣑࢜ࣥࣜࣥࢢࢆ⏝࠸࡚ຍᕤ⾲㠃ࡢࢲ࣓࣮ࢪᒙࡢ㝖ཤࢆ⾜ࡗࡓ㸬࣑ࣜࣥࢢ᮲௳ࡣຍ㏿㟁ᅽ 4 kV㸪ධᑕゅ 10 deg㸬ヨᩱᅇ㌿㏿ᗘࡣ 1 rev. / min㸪ᅇ㌿ゅᗘࡣ 360 deg. ࡜ࡋࡓ㸬࢖࢜ࣥ※࡟ Ar ࢆ⏝࠸࡚↷ᑕ᫬㛫 10 ศ㛫㸪ヨᩱ ᗘࡣᖖ ࡛⾜ࡗࡓ㸬࣑ࢡࣟ⤌⧊ࡢほᐹཬࡧ࢚ࢿࣝࢠ࣮ศᩓᆺ X ⥺ศᯒ㸦Energy Dispersive X-ray Microanalysis: EDX㸧࡟ࡼࡿᡂศศᯒ࡟ࡣ㸪᪥❧ࣁ࢖ࢸࢡࣀࣟࢪ࣮ࢬ〇ࡢ㟁⏺ᨺฟᆺ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾㸦Field Emission Scanning Election
Microscope: FE-SEM㸧SU-70 ࢆ⏝࠸ࡓ㸬⤖ᬗ⢏ᚄࡣ
FE-SEM ࡟ᦚ㍕ࡉࢀࡓ㟁Ꮚᚋ᪉ᩓ஘ᅇᯒ 㸦Electron
Backscatter diffraction Pattern: EBSP㸧࡟ࡼࡾゎᯒࡋࡓ㸬
EBSP ゎᯒࡣຍ㏿㟁ᅽࢆ 20kV㸪ಸ⋡ࡣ 5000 ಸ࡜ࡋ㸪ヨᩱഴᩳゅ 70 deg.㸪ほᐹ㡿ᇦ 3535 Pm㸪࣮࣡ࢡࢹ࢕ࢫࢱࣥࢫ 18 mm㸪ࢫࢸࢵࣉ㛫㝸 0.1 Pm ࡛⾜ࡗࡓ㸬Fig. 1 SEM microstructure showing before and after friction
stir processing of aluminum alloy ADC12.

− 143 −

(a) BM

Fig. 3 Inverse Pole Figure showing before and after friction
stir processing of aluminum alloy ADC12.
4. ⤖ゝᦶ᧿᧠ᢾฎ⌮ࡉࢀࡓ㗪㐀⏝࢔࣑ࣝࢽ࣒࢘ྜ ADC12 ࡢ(b) SZ࣑ࢡࣟ⤌⧊ゎᯒࢆ⾜࠸㸪௨ୗࡢ⤖ᯝࢆᚓࡓ㸬

Fig. 2 EDX map showing of aluminum alloy ADC12: BM[1](a) and SZ (b).

BM ࡛ࡣ Si ༢┦㸪Fe ⣔໬ྜ≀㸪Cu ⣔໬ྜ≀ࡢᏑᅾࡀㄆࡵࡽࢀࡓࡀ㸪SZ ࡟ࡣ Cu ⣔໬ྜ≀ࡢࢥࣥࢺࣛࢫࢺࡀㄆࡵࡽࢀ࡞࠸㸬ࡇࢀࡣ Al-Cu ⣔ࡢྜࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬 ࡲࡓ୍᪉࡛㸪Fig. 3 ࡢᅗ୰࡟㔠࡟࠾࠸࡚௦⾲ⓗ࡞ᯒฟ┦࡛࠶ࡿ CuAl2 ┦ࡀࡣ FSP ୰ࡢධ⇕㔞࡟ᙳ㡪ࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ

FSP ࡟ࡼࡗ࡚෌ᅛ⁐ࡋ࡚࠸ࡿྍ⬟ᛶࡀ⪃࠼ࡽࢀ

NR/v ẚ࡜ᖹᆒ⤖ᬗ⢏ᚄࢆేグࡋ࡚࠸ࡿ㸬BM ࡜ྛ FSPࡿ㸬᮲௳ࡢ SZ ࡢᖹᆒ⤖ᬗ⢏ᚄࢆẚ㍑ࡍࡿ࡜㸪FSP ࡟ࡼࡗ[2]

FSP ࡟ࡼࡗ࡚⤖ᬗ⢏ࡀᚤ⣽໬ࡉࢀ࡚࠸ࡿࡇ࡜ࡣ

࡚⤖ᬗ⢏ࡀᚤ⣽໬ࡉࢀ࡚࠸ࡿࡇ࡜ࡣ᫂ࡽ࠿࡛࠶ࡾ㸪ᑦ᫂ࡽ࠿࡛࠶ࡾ㸪ᑦୟࡘ NR /v ẚࡢᑠࡉ࡞᮲௳࡯࡝

ୟࡘ NR /v ẚࡢᑠࡉ࡞᮲௳࡯࡝ᚤ⣽໬ࡉࢀ࡚࠸ࡿ㸬ࡼࡗᚤ⣽໬ࡉࢀ࡚࠸ࡿ㸬ࡼࡗ࡚㸪⤖ᬗ⢏ࡢᚤ⣽໬࡟࡚㸪⤖ᬗ⢏ࡢᚤ⣽໬࡟ࡣ➨ 2 ┦⢏Ꮚࡢᚤ⣽ศᩓ࡜ྠᵝࡣ➨ 2 ┦⢏Ꮚࡢᚤ⣽ศᩓ࡜ྠᵝ࡟ FSP ୰ࡢධ⇕

࡟FSP ୰ࡢධ⇕㔞ࡶ㔜せ࡞ࣃ࣓࣮ࣛࢱ࡛࠶ࡿ࡜⪃࠼ࡽ㔞ࡶ㔜せ࡞ࣃ࣓࣮ࣛࢱ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧ࢀࡿ㸬

− 144 −

ᦶ᧿ᨩᢾࣉࣟࢭࢫࢆ฼⏝ࡋࡓᒁᡤྜ㔠໬࡜ࡑࡢ⤌⧊㛵す኱Ꮫ ໬Ꮫ⏕࿨ᕤᏛ㒊ୖ⏣ ṇே
1. ㅖゝ
㏆ᖺ䠈ᦶ᧿ᨩᢾ䛿᥋ྜ䛾䜏䛺䜙䛪㗪㐀Ḟ㝗䛾㝖ཤ䜔㔠ᒓ㒊ᮦ䛾㒊ศ◳໬➼䛾᪂つ䛺䝥䝻䝉䝇䛸䛧䛶䜒ὀ┠䛥䜜䛶䛔䜛䚹␗✀㔠ᒓ䜢ᦶ᧿ᨩᢾ᥋ྜ䛩䜛䛸᥋ྜ㒊䛻䛿㔠ᒓ㛫໬ྜ≀䛜⏕ᡂ䛩䜛➼䠈㠀ᖹ⾮䛷ከᙬ䛺⤌⧊䛜ᙧᡂ䛥䜜䜛䛣䛸䛜ሗ࿌䛥䜜䛶䛚䜚䠈ᮏ䝥䝻䝉䝇䛿ᒁᡤⓗ䛺⤌⧊ไᚚᡭἲ䛾୍䛴䛸䛧䛶䜒㠀ᖖ䛻⯆࿡῝䛔䚹ᮏ◊✲䛷䛿⣧ Ti ᯈ䜢✺䛝ྜ䜟䛫䠈䛭䛾㛫䛻䜲䞁䝃䞊䝖ᮦ䛸䛧䛶⣧ Mg ᯈ䜢ᣳ䜏㎸䜣䛰≧ែ䛷ᦶ᧿ᨩᢾ᥋ྜ
䛧䠈᥋ྜ㒊䛾⤌⧊䜢ヲ⣽䛻ほᐹ䛩䜛䛣䛸䜢┠ⓗ䛸䛧䛯䚹䛺䛚䠈Ti 䛸 Mg 䛿䠈ᖹ⾮≧ែᅗୖ䛷䠈஫䛔䛻䜎䛳䛯䛟ᅛ⁐䛧䛺䛔䛣䛸䛜▱䜙䜜䛶䛔䜛䚹
2. ᐇ㦂᪉ἲ
2 ᯛ䛾⣧ Ti ᯈ䠄100 × 50 × t 2 mm䠅䜢✺䛝ྜ䜟䛫䠈䜲䞁䝃䞊䝖ᮦ䛸䛧䛶⣧ Mg ᯈ䠄100 × 50 × t 0.5 mm䠅䜢ᣳ䜏ᅛᐃ䛧䛯䚹㉸◳ྜ㔠䛾䝒䞊䝹䠄䝅䝵䝹䝎ᚄφ12 mm䠈䝥䝹䞊䝤ᚄφ4 mm䠈䝥䝹䞊䝤㛗 1.6 mm䠅䜢⏝䛔䠈 Mg ᯈ䛻ᑐ䛧䛶䝒䞊䝹⛣ື᪉ྥ䛜┤஺䛩䜛䜘䛖ᦶ᧿ᨩᢾ䛧䛯䚹᥋ྜ᮲௳䛿ᅇ㌿㏿ᗘ 200 rpm䠈᥋ྜ㏿ᗘ 100, 150,
200 mm/min䠈๓㐍ゅ 3 °䠈䝅䝸䞁䝎䞊ᅽຊ 19.6 kN 䛸䛧䛯䚹䝅䞊䝹䝗䜺䝇䛸䛧䛶 Ar 䜺䝇䠈䝞䝑䜻䞁䜾䝥䝺䞊䝖䛸䛧䛶 SKD11 ᯈ䜢⏝䛔䛯䚹
3.㻌 ⤖ᯝ㻌 ࡲࡎ㸪⣧ Ti ᯈ䜢✺䛝ྜ䜟䛫䠈䜲䞁䝃䞊䝖ᮦ䛸䛧䛶⣧ Mg ᯈ䜢ᣳ䜣䛰≧ែ䛷䠈䛭䛾 Mg ᯈ䛻ἢ䛳䛯ᦶ᧿ᨩᢾ᥋ྜ䜢ヨ䜏䛯䚹Ti 䛸 Mg 䛾⼥Ⅼ䛿䠈䛭䜜䛮䜜 1668 °C䠈650 °C 䛷䛒䜛䛯䜑䠈䝒䞊䝹䛾ᦶ᧿⇕䛻䜘䛳䛶䠈Ti 䛜㌾໬䛩䜛䛸䠈䜲䞁䝃䞊䝖ᮦ䛾 Mg ᯈ䛿᏶඲䛻⁐⼥䛧䛶䛧䜎䛳䛯䚹䛧䛯䛜䛳䛶䠈䜲䞁䝃䞊䝖ᮦ䛾 Mg ᯈ䛻ᑐ䛧䛶ᆶ┤᪉ྥ䛻䝒䞊䝹䜢⛣ື䛥䛫䠈ᦶ᧿ᨩᢾ᥋ྜ䜢⾜䛳䛯䚹᥋ྜ㏿ᗘ 100 mm/min ࡛ᦶ᧿ᨩᢾࢆ⾜ࡗࡓ Ti ᯈࡢୖ㠃㸪ୗ㠃ࡢእほ㸪࡞ࡽࡧ࡟ SEM-EDS ࡛ᐃࡋࡓMg ྵ᭷⋡࡛సᡂࡋࡓ࣐ࢵࣆࣥࢢࢆ Fig.1 ࡟♧ࡍࠋMg ࡀ⁐⼥ࡋ࡚ᢤࡅⴠࡕࡿࡇ࡜࡞ࡃ㸪ᦶ᧿ᨩᢾࡍࡿ


Fig.1 Appearance and distribution of Mg in FSWed Ti plates with inserted Mg (rotation speed: 200 rpm,
welding speed: 100 mm/min).

− 145 −

ࡇ࡜ࡀ࡛ࡁࡓࠋࡋ࠿ࡋ࡞ࡀࡽ㸪ࢶ࣮ࣝ㏻㐣㒊ศࡢ Mg ࡢ୍㒊ࡣ㸪⁐⼥ࡲࡓࡣ༙⁐⼥ࡢ≧ែ࡟࡞ࡾ㸪ࢶ࣮ࣝ⛣ືࡢ㏫᪉ྥ࡟ࡶὶฟࡋࡓࠋ᥋ྜ㏿ᗘࢆୖ᪼ࡉࡏࡿ࡜㸪Ti ᯈୗ㠃࡛ࡣ㸪Mg ࡢศᕸࡀࢶ࣮ࣝ㐍⾜᪉ྥ࡬ఙ㛗ࡍࡿഴྥࡀㄆࡵࡽࢀࡓࠋ
ࢶ࣮ࣝࡀ⛣ືࡋࡓ୰ኸ㒊᩿㠃㸦AS ഃ㸧࡟࠾ࡅࡿ Mg ࡢศᕸࢆ Fig.2 ࡟♧ࡍࠋMg ࡣ⾲㠃ࡔࡅ࡛ࡣ࡞ࡃ㸪Ti ࡢෆ㒊࡟ࡶᨩᢾ࡟ࡼࡗ࡚ᕳࡁ㎸ࡲࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡑࡢศᕸࡣ㸪ᗏ㒊ࢆ୰ᚰ࡟ࢶ࣮ࣝ⛣ື᪉ྥ࡬ఙ㛗ࡋ࡚࠸ࡓࠋ᥋ྜ㏿ᗘࢆୖ᪼ࡉࡏࡿ࡜㸪ࡑࡢ Mg ࡢศᕸ㊥㞳ࡣ㸪▷ࡃ࡞ࡿഴྥࡀㄆࡵࡽࢀࡓࠋ
ୖグ࡜ྠࡌ᩿㠃ࡢࣅࢵ࣮࢝ࢫ◳ࡉศᕸࢆ Fig.3 ࡟♧ࡍࠋMg ࡢศᕸࡀ☜࠿ࡵࡽࢀࡓ㡿ᇦ࡛ࡣ㸪◳໬ࡍࡿഴྥࡀㄆࡵࡽࢀࡓࠋࡉࡽ࡟㸪Mg ᯈࢆ㉺࠼࡚ᦶ᧿ᨩᢾࡋࡓ㡿ᇦ࡛ࡣ㸪Mg ᯈᡭ๓࡟ẚ࡭㸪◳໬ࡍࡿഴྥࡶㄆࡵࡽࢀࡓࠋ᥋ྜ㏿ᗘࢆୖ᪼ࡉࡏࡿ࡜㸪◳໬ࡍࡿ㡿ᇦࡣᗈࡃ࡞ࡿഴྥࡀ࠶ࡗࡓࠋࡇࡢ◳ࡉࡢୖ᪼ࡣ㸪Mg ࡢศᩓ㸪ࡲࡓࡣᅛ⁐ࢆ♧၀ࡍࡿ࡜⪃࠼࡚࠸ࡿࠋ

Fig.2 Distribution of Mg on the cross-section along welding direction in FSWed Ti plates with inserted Mg(rotation speed: 200 rpm, welding speed: 100 mm/min).


Fig.3 Vickers hardness mapping on the cross-section along welding direction in FSWed Ti plates with inserted
Mg (rotation speed: 200 rpm, welding speed: 100 mm/min).
ඹྠ◊✲ศ㔝㸸 ᶵ⬟ᛶデ᩿Ꮫศ㔝 − 146 −

┿✵ࣉࣛࢬ࣐⁐ᑕἲ࡛ᡂ⭷ࡋᦶ᧿ᨩᢾฎ⌮ࢆ᪋ࡋࡓࢱࣥࢢࢫࢸࣥࡢ࢖࢜ࣥ↷ᑕᚋ◳ࡉ᪥ᮏཎᏊຊ◊✲㛤Ⓨᶵᵓ ᰾⼥ྜ◊✲㛤Ⓨ㒊㛛 ᰾⼥ྜ⅔ᵓ㐀ᮦᩱ㛤Ⓨࢢ࣮ࣝࣉᑠἑ ࿴ᕭ㸯㸬┠ⓗ పᨺᑕ໬ࣇ࢙ࣛ࢖ࢺ㗰㸦F82H㸧ࡣඛ㐍᰾⼥ྜ⅔ࡢᵓ㐀ᮦᩱೃ⿵࡛࠶ࡿࠋ➨୍ቨཬࡧࣈࣛࣥࢣࢵࢺࡢ฼⏝ࢆ᝿ᐃࡋࡓሙྜࠊࣉࣛࢬ࣐ࢫࣃࢵࢱᢚไࡢࡓࡵࢱࣥࢢࢫࢸࣥ㸦W㸧⿕そࡀᚲ㡲࡜ࡉࢀࡿࠋ┿✵ࣉࣛࢬ࣐⁐ᑕ㸦VPS㸧ἲࡣᩘ࠶ࡿ W ⓶⭷ᙧᡂἲࡢ୍ࡘ࡛࠶ࡿࡀࠊ
ࡇࡢᡭἲ࡟ຍ࠼ᦶ᧿ᨩᢾ࡟ࡼࡿ⣽⢏໬ฎ⌮ࢆ᪋ࡍࡇ࡜࡛ࠊ௚ࡢᡭἲ࡟ẚ࡭ࠊ㧗࠸✵Ꮝ⋡࡜ᑠࡉ࡞ᐦᗘ࡟㉳ᅉࡍࡿ W ⓶⭷ࡢẚ㍑ⓗప࠸ຊᏛ࣭⇕≉ᛶࡢᨵၿࡀㄆࡵࡽࢀࡓ㹙1㹛ࠋࡇࡢ⣽⢏໬ฎ⌮ࡣࠊ㠀↷ᑕ≧ែࡢᨵၿࡢࡳ࡞ࡽࡎࠊ⪏↷ᑕ≉ᛶࡢྥୖࡶࡀᮇᚅ࡛ࡁࡿࠋᮏ◊✲࡛ࡣࠊVPS ࡛ᙧᡂࡉࢀᨩᢾᦶ᧿ฎ⌮㸦FSP㸧࡟ࡼࡾᙉ໬ࡉࢀࡓ W ⓶⭷ࡢࠊ࢖࢜ࣥ↷ᑕᚋ◳ࡉ࣭ᚤ⣽⤌⧊࡟ཬࡰࡍ⣽⢏໬ࡢᙳ㡪࡟ࡘ࠸᳨࡚ウࡋࡓࠋ㸰㸬◊✲᪉ἲ ᐇ㦂ᴫ␎ࢆᅗ㸯࡟♧ࡍࠋF82H-IEA ࣄ࣮ࢺࢆẕᮦ࡜ࡋࠊW ࢆ VPS ἲ࡟ࡼࡾ 2 mm ཌࡉࡲ࡛⓶⭷ᙧᡂࡋࡓヨᩱ࡟ᑐࡋࠊW ⾲㠃ഃࡼࡾ FSP ࢆ᪋ࡋࡓࠋࡑࡢᚋࠊW ⓶⭷࡜ F82H ẕᮦ࡟ษࡾศࡅࠊヨᩱ⾲㠃ࢆ~0.05 μm ࢔࣑ࣝࢼࣂࣇࡲ
࡛㙾㠃◊☻ࡋࠊ࢖࢜ࣥ↷ᑕヨ㦂࡟౪ࡋࡓࠋW ⓶⭷ࡣ᪥ᮏཎᏊຊ◊✲㛤Ⓨᶵᵓ㧗ᓮ◊ TIARA ᪋タ࡟࠾࠸࡚ࠊ18.0 MeV
W6+ࢩࣥࢢࣝ࢖࢜ࣥ↷ᑕ࡟౪ࡉࢀࡓࠋ↷ᑕ᮲௳ࡣࠊ500, 800°Cࠊ~5.4 dpa㸦1 dpa = ࡍ࡭࡚ࡢᵓᡂཎᏊࡀ 1 ᅇᙎࡁฟࡉࡏࡿᦆയ㔞㸧
ࠊ~110-4 dpa/s㸦࢖࢜ࣥ↷ᑕ⾲㠃࠿ࡽ 500 nm ῝ࡉ࡟࠾ࡅࡿබ⛠್㸸ᅗ㸰㸧࡛࠶ࡿࠋ↷ᑕᚋࡢྛヨᩱࡣ㉸ᚤᑠᢲࡋࡇࡳヨ㦂࡟ࡼࡾᢲࡋࡇࡳ῝ࡉ 300 nm ࡟࡚◳ࡉࢆホ౯ࡋࡓ㸦≉࡟㉸ᚤᑠᢲࡋࡇࡳヨ㦂࡛ࡣࠊྍ⬟࡞ࡶࡢࡣᚤ⣽⢏⤌⧊࡟ᑐࡋ࡚㑅ᢥⓗ࡟ᐇ᪋ࡋࡓ㸧ࠋࡲࡓࠊᚤ⣽⤌⧊ࢆගᏛ㢧ᚤ㙾ࠊ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾࡞ࡽࡧ࡟㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾࡟ࡼࡾホ౯ࡋࡓࠋTRIMͲ2008,Ed=90eV

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'HSWKIURPVXUIDFH‫¡ن‬P‫ه‬ᅗ㸰㸧࢖࢜ࣥ࡟ࡼࡿ⾲㠃࠿ࡽࡢᦆയ㔞ᅗ㸯㸧ᐇ㦂ࡢᴫ␎ᅗࠋ㻌ศᕸ࡜ὀධ࢖࢜ࣥ⵳✚ศᕸࠋ㻌㸱㸬⤖ᯝཬࡧ⪃ᐹ 㠀↷ᑕ≧ែ࡟࠾ࡅࡿྛ✀ W ᮦ㸦ᮍฎ⌮ࡢࣂࣝࢡ W ᮦࠊ
VPS ࡲࡲ W ᮦ
㸦as-VPS-W㸧ࠊ
VPS ᚋ࡟ 500 rpm-50 mm/min-2tࡢ᮲௳࡛ 2 ࣃࢫ FSP ฎ⌮ࢆ᪋ࡋࡓ W ᮦ㸦VPS-FSP×2-W㸧
㸧ࡢ SEM ほᐹീ࡜ࡑࢀ࡟௜㝶ࡍࡿ EBSP ⤖ᯝࢆᅗ㸱࡟♧ࡍࠋࣂࣝࢡ W ࡛ࡣ 10 μm ⛬ᗘ௨ୖࡢ⢏ᚄࢆ♧ࡍ୍᪉࡛ࠊas-VPS-W ᮦ࡜ VPS-FSP×2-W ࡟ࡘ࠸࡚ࡣ~2 μm ࡢᚤ⣽࡞⢏⤌⧊ࡀᚓࡽࢀࠊࣂࣝࢡᮦࡸ as-VPS-W ࡟ẚ࡭ VPS-FSP×2-W ࡀ⛻ᐦ࡛࠿ࡘ➼᪉ⓗ࡞⤖ᬗ⢏࡜࡞ࡿഴྥࡀㄆࡵࡽࢀ
ࡓࠋVPS ࡛ᙧᡂࡉࢀࡓᚤ⣽࡞✚ᒙ⢏ࡀ FSP ฎ⌮࡟ࡼࡾࡉࡽ࡟ᚤ⣽⢏໬ࡋࡓࡾࠊVPS ࡛⢒኱࡞ᮍ⁐⼥⢏ࡢࡍ࡭࡚ࡀ
FSP ฎ⌮࡟ࡼࡾᚤ⣽໬ࡍࡿ࡜࠸ࡗࡓഴྥࡣㄆࡵࡽࢀ࡞࠿ࡗࡓࠋ ࢖࢜ࣥ↷ᑕᚋࡢ㉸ᚤᑠᢲࡋ㎸ࡳ◳ࡉ⤖ᯝࢆᅗ㸲࡟♧ࡍࠋ㠀↷ᑕ≧ែ࡟࠾࠸࡚ࡣࣂࣝࢡ W ᮦ㸦~7 GPa㸧ࡼࡾ㧗࠸◳ࡉࡀᚓࡽࢀ㸦as-VPS-W: 9 GPaࠊVPS-FSP×2-W: 10 GPa㸧ࠊࡈࡃࢃࡎ࠿࡛ࡣ࠶ࡿࡀ FSP ࡜࠸࠺ᙉຍᕤ࡟ࡼࡿ◳ᗘୖ᪼ࡢഴྥࡀㄆࡵࡽࢀࡓࠋ

− 147 −

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ᅗ㸱㸧㠀↷ᑕ≧ែࡢྛ✀ W ᮦ࡟࠾ࡅࡿ SEM-EBSP ศᯒ⤖ᯝࠋ

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୍᪉࡛ࠊ
as-VPS-W ᮦ࡜ VPS-FSP×2-W ᮦ࡟ࡘ࠸࡚ࡣ࡜ࡶ࡟ 500°C
࡟࠾࠸࡚ࡣ᭷ព࡞ኚ໬ࡀㄆࡵࡽࢀࡎࠊ800°C ࡟࠾࠸࡚ࡣ 1 dpa ௜㏆ࡼࡾ㌾໬ഴྥࡀㄆࡵࡽࢀࡓࠋ㌾໬ࡢ୺ࡓࡿཎᅉ࡜ࡋ࡚ࠊ⤌⧊ࡢᅇ᚟ᣲືࡀ♧၀ࡉࢀࡿࡓࡵࠊTEM ほᐹ࡟ࡼࡾ☜ㄆࢆᐇ᪋୰࡛
࠶ࡿࠋFIB ࡟ࡼࡾస〇ࡋࡓヨᩱࢆ⏝࠸ࡓ TEM ほᐹ⤖ᯝࢆᅗ㸳࡟♧ࡍࡀࠊFIB ࡟ࡼࡾᑟධࡉࢀࡓḞ㝗࡟ࡼࡾᚤ⣽⤌⧊ࡀṇ☜࡟ホ౯࡛ࡁ࡞࠸ࡓࡵࠊ⌧ᅾࠊFIB ᚋ࡟㟁ゎ◊☻ࢆຍ࠼࡚௙ୖࡆࡓヨᩱࢆ⏝࠸࡚ TEM ほᐹࢆᐇ᪋୰࡛࠶ࡿࠋ

VPSͲFSPx2ͲWasͲVPSͲW

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Unirradiated ㉸ᚤᑠᢲࡋ㎸ࡳヨ㦂࡟ࡼࡾࠊVPS ฎ⌮ᚋࠊFSP ฎ⌮ࢆ⾜ࡗࡓࢱࣥࢢࢫࢸࣥࡢ◳ࡉ࡜ᚤ⣽⤌⧊࡟ཬࡰࡍ↷ᑕຠᯝࢆ᳨ウࡋࡓࠋ,UUDGLDWLRQGRVH>GSD@ᅗ㸲㸧㸦a㸧500°Cࠊ㸦b㸧800°C ࡛↷ᑕࡋࡓྛ W ᮦࡢ㉸ᚤᑠᢲ㎸ࡳ◳ࡉࠋ㉸ᚤᑠᢲࡋ㎸ࡳヨ㦂࡛ࡣࠊࣂࣝࢡᮦ࡛ࡣ↷ᑕ◳໬ഴྥࡀㄆࡵࡽ
ࢀࠊVPS ᚋࡢ FSP ࡟ࡼࡿᙉ໬ࡀࡈࡃࢃࡎ࠿࡟ㄆࡵࡽࢀࡓࠋ↷ᑕ
ᗘ 500°C ࡛ࡣ᭷ព࡞ኚ໬ࡀㄆࡵࡽࢀ࡞࠿ࡗࡓ୍᪉࡛ࠊ800°C
࡟࠾࠸࡚ࠊVPS ᮦࠊVPS-FSP ᮦࡢ㌾໬ഴྥࡀㄆࡵࡽࢀࠊTEM ࡟ࡼࡿ☜ㄆࢆᐇ᪋୰࡛࠶ࡿࠋ
㸳㸬ཧ⪃ᩥ⊩
㹙㸯㹛

H. Tanigawa, et al., “Modification of vacuum plasma
sprayed tungsten coating on F82H by friction stirprocessing,” Fusion Eng. Des., accepted, (2015).
㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 148 −

ᅗ㸳㸧FIB ࡛స〇ࡉࢀࡓヨᩱࡢᚤ⣽⤌⧊ࠋ୰Ⅳ⣲㗰䠄㻿㻠㻡㻯䠅ᦶ᧿ᨩᢾ᥋ྜ⥅ᡭ䛾⤌⧊䛸ᶵᲔⓗ≉ᛶ䛻㛵䛩䜛◊✲㻌⛅⏣኱Ꮫ኱Ꮫ㝔ᕤᏛ㈨※Ꮫ◊✲⛉㻌 㻌 ᐑ㔝㻌 Ὀᚁ䚸⚄㇂㻌 ಟ䚸኱ஂಖ㻌 ⇤㻌㻌1.ㅖゝ㏆ᖺࠊᵓ㐀ᮦᩱࡢ㍍㔞໬ࢆ┠ⓗ࡟㕲㗰ᮦᩱࡢ㧗ᙉᗘ࣭㍍㔞໬ࢆ┠ᣦࡋࡓᮦᩱ㛤Ⓨࡀὀ┠ࡉࢀ࡚࠸ࡿࠋⴭ⪅ࡽࡣࠊ୰㧗Ⅳ⣲㗰࡟㠀⁐⼥᥋ྜ㸦ᦶ᧿᧠ᢾ᥋ྜ㸧ࢆ㐺⏝ࡋࡓሙྜ࡟࠾ࡅࡿࠊ᥋ྜ⥅ᡭࡢᙉᗘ㺃㠌ᛶ≉ᛶ࡜⤌⧊ࡢ㛵ಀゎ᫂ࢆ┠ⓗ࡜ࡋࡓᇶ♏◊✲ࢆ⾜ࡗ࡚࠸ࡿࠋᮏሗ࡛ࡣࠊỗ⏝ࡢⅣ⣲㗰㸦JIS-S45C㸧ࢆᑐ㇟࡟ᦶ᧿ᨩᢾ᥋
ྜ㸦FSW㸧ࢆᐇ᪋ࡋࠊ⥅ᡭస〇࠾ࡼࡧධ⇕㔞࡜⥅ᡭ≉ᛶࡢホ౯ࢆ⾜ࡗࡓ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ
2.ᐇ㦂᪉ἲ

Table 1.㻌 ᦶ᧿ᨩᢾ᥋ྜ᮲௳

౪ヨᮦ࡟ࡣ௦⾲ⓗ࡞ỗ⏝ࡢⅣ⣲㗰ᮦJIS-S45C ࢆ౑⏝ࡋࡓࠋ300×30×1.5t
mm ࡢᯈᮦࢆᑐ㇟࡟ࠊ✺ྜࡏ᮲௳࡛ᦶ
᧿ᨩᢾ᥋ྜヨ㦂ࢆᐇ᪋ࡋࡓࠋWC 〇ࢶ࣮ࣝ (ࢩࣙࣝࢲ: 䃥12 mm㸪ࣉ࣮ࣟࣈ:䃥4 mm) ࢆ౑⏝ࡋࡓࠋⲴ㔜ไᚚᆺᦶ᧿ᨩᢾ᥋ྜ⿦⨨ࢆ౑⏝ࡋࠊᅇ㌿㏿ᗘ࡜᥋ྜ㏿ᗘࢆࡑࢀࡒࢀ 100㹼400 rpmࠊ100㹼400 mm/min ࡢ⠊ᅖ࡛ኚ໬ࡉࡏࠊධ⇕㔞ࡢ␗࡞ࡿ⥅ᡭࢆྛ✀స〇ࡍࡿࡓࡵࡢ᥋ྜヨ㦂ࢆᐇ᪋ࡋࡓࠋ᥋
ྜ୰ࡢධ⇕㔞ࢆ㉥እ⥺ᨺᑕ⇕⏬ീゎᯒ⿦⨨࡟ࡼࡾホ౯ࡋࡓࠋᮏ◊✲࡛᥇⏝ࡋࡓ᥋ྜ᮲௳ࢆ Table 1 ࡟♧ࡍࠋ ⥅ᡭస〇ᚋࠊගᏛ㢧ᚤ㙾࡟ࡼࡿ᥋ྜ㒊᩿㠃ほᐹࠊ࠾ࡼࡧ FE-SEM / EBSD ࡟ࡼࡿ᥋ྜ㒊ࡢᚤ⣽⤌⧊ほᐹࠊ⤖ᬗ⢏⏺ゎᯒࢆ⾜ࡗࡓࠋࡲࡓࠊ᥋ྜ⥺࡟ᆶ┤࡞᥋ྜ᩿㠃ࢆᑐ㇟࡟ࣅࢵ࣮࢝ࢫ◳ᗘᐃࢆ⾜ࡗࡓࠋᐃ⠊ᅖࡣ᥋ྜ⏺㠃ࢆ୰ᚰ࡜ࡋࡓᶓ᪉ྥ 300 mmࠊᯈཌࢆ୰ᚰ࡜ࡋࡓ⦪᪉ྥ 10 mm ࡢ༊㛫࡜ࡋࠊ⮬ືࢫࢸ࣮ࢪ⛣ືᶵᵓࢆᦚ㍕ࡋࡓ ᐃᶵ࡛ᶓࣆࢵࢳ 0.6 mmࠊ⦪ࣆࢵࢳ 0.2 mm ࡢ 250 Ⅼࡢᐃ್ࢆᚓࡓࠋ༳ຍⲴ㔜ࡣ 2.94 NࠊⲴ㔜ಖᣢ᫬㛫ࡣ 10 s ࡜ࡋࡓࠋ3.ᐇ㦂⤖ᯝ䛸⪃ᐹ
3.1 ㉥እ⥺ᨺᑕ⇕⏬ീゎᯒ⿦⨨䛻䜘䜛ධ⇕㔞䛾ホ౯㻌᥋ྜᮦ⾲㠃࡟᥋ࡋࡓࢶ࣮ࣝࢩࣙࣝࢲ࣮⾲㠃ࢆᑐ㇟࡟ࠊᦶ᧿ᨩ
ᢾ᥋ྜ୰ࡢ᭱㧗฿㐩ᗘࢆ㉥እ⥺ᨺᑕ⇕⏬ീゎᯒ⿦⨨࡟ࡼࡾᐃࡋࡓࠋ ᐃ᫬ࡢእほ࠾ࡼࡧ௦⾲ⓗ࡞⇕ゎᯒ⏬ീࢆ Fig. 1 ࡟♧ࡍࠋ᥋ྜ᮲௳ࡈ࡜ࡢ⇕⏬ീゎᯒ⤖ᯝࢆ Fig. 2 ࡟♧ࡋࡓࠋᑟฟࡉࢀࡓ᭱
㧗฿㐩 ᗘࡣᅇ㌿㏿ᗘ࡜Ⰻ࠸┦㛵ࡀ♧ࡉࢀ࡚࠸ࡿࠋᅇ㌿㏿ᗘࡀ᭱኱ࡢ(c)࡜(e)࡛ࡣ᭱㧗฿㐩 ᗘࡀ A3 ኚែⅬ௨ୖ࡟ࠊᅇ㌿㏿ᗘࡀ᭱ᑠࡢ(a)࡛ࡣ᭱㧗฿㐩 ᗘࡀ A1 ኚែⅬ௨ୗ࡟ไᚚࡉࢀ࡚࠸ࡓᵝᏊࡀ☜ㄆࡉࢀࡓࠋ
3.2 ᥋ྜ㒊᩿㠃䝬䜽䝻ほᐹ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 㻌 㻌 㻌 㻌 㻌᥋ྜ⥅ᡭ᩿㠃ࡢගᏛ㢧ᚤ㙾࡟ࡼࡿ࣐ࢡࣟ⤌⧊ほᐹീࢆ Fig. 3 ࡟ Fig. 1 ධ⇕㔞 ᐃ䛾ᴫせ㻌 (A) ㉥እ⥺ᨺᑕ⇕⏬
♧ࡍࠋእほࡣ೺඲࡜ุ᩿ࡉࢀࡓ⥅ᡭࢆᑐ㇟࡜ࡋ࡚࠸ࡿࡀࠊ(a)࡜(d) ീゎᯒ⿦⨨䛾㓄⨨䚸䠄B䠅ᦶ᧿ᨩᢾ᥋ྜ⿦⨨䝒䞊ࡢ஧ࡘࡢ᮲௳࡛ࠊ᥋ྜ⏺㠃⿬㠃ഃ࠶ࡿ࠸ࡣᨩᢾ㡿ᇦእ⦕࡟Ḟ㝗࡜ 䝹࿘ᅖ䛾እほ䚸䠄C䠅㉥እ⥺ᨺᑕ⇕ゎᯒ⏬ീ䛾౛(ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝)− 149 −

ᛮࢃࢀࡿ⑞㊧ࡀㄆࡵࡽࢀࡓࠋ࠸ࡎࢀࡶపධ⇕ࡢ᮲௳࡛࠶ࡿ
ࡇ࡜࠿ࡽḞ㝗ࡣᨩᢾ୙㊊࡟㉳ᅉࡍࡿ࡜ᛮࢃࢀࡿࠋࡋ࠿ࡋࠊ
ࡇࢀࡽࡢ᮲௳࡟࠾࠸࡚ࡶⲴ㔜᮲௳ࢆ᭱㐺໬ࡍࡿࡇ࡜࡛Ḟ㝗Ⓨ⏕ࡢゎᾘࡣྍ⬟࡜⪃࠼࡚࠸ࡿࠋほᐹࡣ㐣ሷ⣲㓟࣭㓑㓟࡟ࡼࡿ࢚ࢵࢳࣥࢢᐇ᪋ᚋ࡟⾜ࡗ࡚࠸ࡿࡀࠊᚲࡎࡋࡶᨩᢾ㒊࡜ࡑࡢእ㒊ࡀ᫂☜࡟㆑ู࡛ࡁࡿ≧ἣ࡟ࡣ࡞ࡽࡎࠊࡑࡢഴྥ
ࡣ⾲㠃ࡼࡾࡣ⿬㠃ഃ࡛㢧ⴭ࡜࡞ࡗࡓࠋ≉࡟ࠊ᭱ࡶධ⇕㔞ࡀᑠࡉ࠸ (a)࡛ࡣࠊᨩᢾ㡿ᇦࡀ᫂░࡟ฟ⌧ࡍࡿࡲ࡛࡟ࡣ࠸ࡓ
ࡽ࡞࠿ࡗࡓࠋ᥋ྜ᮲௳࠾ࡼࡧᯈཌ᪉ྥࡢ㐪࠸࡟ࡼࡿ⤌⧊ฟ⌧ࡢ㐪࠸࡟ࡘ࠸࡚ࡣࠊ᥋ྜࣉࣟࢭࢫ୰ࡢ┦ኚែࡢᙳ㡪࡟㛵

Fig. 2 ㉥እ⥺ᨺᑕ⇕ゎᯒ⿦⨨䛷 ᐃ䛧䛯㻌ಀࡍࡿࡶࡢ࡜⪃࠼ࡽࢀࡿࠋ

᥋ྜ᮲௳䛸䝒䞊䝹䝅䝵䝹䝎⾲㠃 ᗘ䛾㛵ಀ㻌

3.3 ࣅࢵ࣮࢝ࢫ◳ᗘᐃ               ᥋ྜ⥅ᡭ᩿㠃ࡢࣅࢵ࣮࢝ࢫ◳ᗘศᕸࢆ Fig. 4 ࡟♧ࡍࠋ඲᮲௳࡛ᨩᢾ㡿ᇦ࡟ᑐᛂࡋࡓ◳ᗘୖ᪼ࡀ☜ㄆࡉࢀࠊᐃ㡿ᇦෆ࡟࠾ࡅࡿ◳ᗘపୗࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓࠋධ⇕㔞ࡀ኱ࡁ࠸(c)࡜(e)࡛ࡣࠊᨩᢾ㒊୰ኸ⾲㠃ഃ࡛ࡢ◳ᗘୖ᪼ࡀ㢧ⴭ࡜࡞ࡾࠊ
ࡑࢀ࡟క࠸⾲㠃࡜⿬㠃࡛ࡢ◳ᗘᕪࡀ኱ࡁࡃ࡞ࡿഴྥࡀ☜ㄆࡉࢀࡓࠋ(d)࡛ࡣ◳ᗘࡢୖ᪼ᇦෆࡢ୍㒊࡟◳ᗘୖ᪼ࡀ࠾ࡁ࡚
Fig. 3 ᦶ᧿ᨩᢾ᥋ྜ⥅ᡭ᩿㠃䝬䜽䝻⤌⧊ほᐹ⏬ീ㻌࠸࡞࠸㡿ᇦࡀぢࡽࢀࡿࡀࠊࡇࢀ࡟ࡘ࠸࡚ࡣ᩿㠃࣐ࢡࣟほᐹ࡛☜ㄆࡉࢀࡓ᥋ྜḞ㝗࡜ᛮࢃࢀࡿ㡿ᇦ࡜ࡢᑐᛂࡀ␲ࢃ
ࢀࡓࠋ
3.4 ⢏ᚄ࡜◳ᗘࡢ┦㛵ホ౯
 (a), (c)࠾ࡼࡧ(e)ࡢ 3 ᮲௳ࢆᑐ㇟࡟ࠊEBSD ࡟ࡼࡿ⢏ᚄゎᯒࡢ⤖ᯝ࡜ࣅࢵ࣮࢝ࢫ◳ᗘศᕸࡢ┦㛵ࢆ Fig. 5 ࡟ᩚ⌮ࡋࡓࠋࡍ࡭࡚ࡢ᮲௳࡟࠾࠸࡚ࠊ࣮࣭࣍ࣝ࣌ࢵࢳࡢ
㛵ಀࡀ᫂☜࡟☜ㄆ࡛ࡁࡿࡀࠊ┤⥺ࡢ໙㓄࡟ࡣ᥋ྜ᮲௳
ࡈ࡜࡟␗࡞ࡿഴྥࡀ♧ࡉࢀࡓࠋࡇࡢࡇ࡜ࡼࡾࠊ᥋ྜ᮲

Fig. 4 ᦶ᧿ᨩᢾ᥋ྜ⥅ᡭ᩿㠃䛾䝡䝑䜹䞊䝇◳ᗘศᕸ㻌௳࡟ࡼࡗ࡚ࡣࠊ⤖ᬗ⢏ࡢᚤ⣽໬௨እࡢᙉ໬ᶵᵓࡢᙳ㡪ࡀ࠶ࡿࡶࡢ࡜⪃࠼ࡽࢀࡿࠋ
4.⤖ゝ(1) S45C ᦶ᧿ᨩᢾ᥋ྜ⥅ᡭࡢ᥋ྜ᮲௳࡜ධ⇕㔞ࡢ㛵ಀࢆ㉥እ⥺ᨺᑕ⇕⏬ീゎᯒ⿦⨨࡟ࡼࡾホ౯ࡋࡓࠋ(2) S45C ᦶ᧿ᨩᢾ᥋ྜ⥅ᡭࡢ⤌⧊࡜ᶵᲔⓗ≉ᛶࡢ┦㛵ࢆ࣮࣭࣍ࣝ࣌ࢵࢳ๎࡟ࡼࡾホ౯ࡋࡓࠋㅰ㎡ᮏ◊✲ࡢᡂᯝࡣࠊ⊂❧⾜ᨻἲே᪂࢚ࢿࣝࢠ࣮࣭⏘ᴗᢏ⾡⥲ྜ

Fig.5 䝡䝑䜹䞊䝇◳ᗘ䛸⥅ᡭ⤌⧊⤖ᬗ⢏ᚄ䛾㛵ಀ㛤Ⓨᶵᵓ㸦㹌㹃㹂㹍㸧ࡢጤクᴗົࡢ⤖ᯝᚓࡽࢀࡓࡶࡢ࡛࠶ࡿࠋ
(ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝)− 150 −

⃿ࢀᛶࢆ⏝࠸ࡓษ๐ࢳࢵࣉ⏝◳㉁ⷧ⭷ࡢษ๐ᛶ⬟ホ౯⚟஭ᕤᴗ኱ᏛᕤᏛ㒊 ⚄⏣୍㝯
Evaluation of Thin Films for Cutting Tools with the Wettability
Kazutaka Kanda*

Department of Mechanical Engineering, Fukui University of Technology

1. ⥴ ゝ
㏆ ᖺ ࠊษ ๐ ᕤ ල ࡀ ౑ ⏝ ࡉ ࢀ ࡿ ⎔ ቃ ࡣ ᚑ ᮶ ࡜ ẚ ࡭ ࡚ ᪥ ࠎ 㐣 㓞 ࡞ ࡶ ࡢ ࡜ ࡞ ࡗ ࡚ ࠸ ࡿ ࠋษ ๐ ຍᕤ ࡢ ⌧ ሙ ࡛ ࡣ ࠊ㧗 ◳ ᗘ 㗰 ࡸ 㞴 ๐ ᮦ ࡞ ࡝ ࡟ ᑐ ࡋ ࡚ ᭦ ࡞ ࡿ 㧗 ㏿ ࣭ 㧗 ⬟ ⋡ ຍ ᕤ ໬ ཬ ࡧ ప ࢥ ࢫ ࢺ ໬ࢆ ồ ࡵ ࡿ ഴ ྥ ࡟ ࠶ ࡾ ࠊࡲ ࡓ ᭱ ㏆ ࡛ ࡣ ⎔ ቃ ㈇ Ⲵ ㍍ ῶ ࡢ ほ Ⅼ ࠿ ࡽ ษ ๐ ᾮ ࢆ ౑ ࢃ ࡞ ࠸ ࢻ ࣛ ࢖ ຍ ᕤ໬ ࡶ 㐍 ࡵ ࡽ ࢀ ࡚ ࠸ ࡿ ࠋࡇ ࢀ ࡽ ࡢ せ ồ ࡣ ษ ๐ ᕤ ල ࡢ ล ඛ ࡟ ࠿ ࠿ ࡿ ㈇ Ⲵ ࢆ ቑ ኱ ࡉ ࡏ ࡿ ࡶ ࡢ ࡛ ࠶ࡾ ࠊཌ ࡉ ᩘ ȣ m ࡢ 㧗 ◳ ᗘ ࡞ ࢭ ࣛ ࣑ ࢵ ࢡ ⷧ ⭷ ࢆ ᕤ ල ⾲ 㠃 ࡟ ⿕ そ ࡋ ࡓ ✀ ࠎ ࡢ ࢥ ࣮ ࢸ ࢕ ࣥ ࢢ ᕤ ලࢆ ⏝ ࠸ ࡿ ࡇ ࡜ ࡛ ࠊษ ๐ ᕤ ල ࡢ 㛗 ᑑ ࿨ ໬ ࡀ ᅗ ࡽ ࢀ ࡚ ࠸ ࡿ ࠋࡋ ࠿ ࡋ ࡞ ࡀ ࡽ ࠊษ ๐ ᫬ ࡢ ᕤ ල ࡜ ⿕๐ ᮦ ࡜ ࡢ จ ╔ ࡟ ࡼ ࡿ ᕤ ල ᑑ ࿨ ࡢ ప ୗ ࡸ ࠊᵓ ᡂ ล ඛ ࡟ ࡼ ࡿ ௙ ୖ ࡆ 㠃 ရ ఩ ࡢ ຎ ໬ ࡞ ࡝ ࡢ ၥ 㢟 ࡶᏑᅾࡋ࡚࠾ࡾࠊจ╔ࡀ⏕ࡌ࡞࠸ࢥ࣮ࢸ࢕ࣥࢢᕤලࡢ㑅ᐃࡀᚲせ࡛࠶ࡿࠋࡑ ࡇ ࡛ ᮏ ◊ ✲ ࡛ ࡣ ࠊจ ╔ ࢆ ᐃ 㔞 ⓗ ࡟ ホ ౯ ࡍ ࡿ ࡓ ࡵ ࡟ ࠊจ ╔ ࡜ ᙉ ࠸ 㛵 㐃 ᛶ ࢆ ᣢ ࡘ ࡜ ᛮ ࢃ ࢀࡿࠕ ⃿ ࢀ ᛶ ࠖࢆ ฼ ⏝ ࡍ ࡿ ᪉ ἲ ࢆ ᳨ ウ ࡋ ࡓ ࠋල య ⓗ ࡟ ࡣ ࠊ◳ ㉁ ⷧ ⭷ ࡜ ⿕ ຍ ᕤ ᮦ ࡢ ⃿ ࢀ ᛶ ࡟ ╔┠ ࡋ ࠊྛ ✀ ◳ ㉁ ⷧ ⭷ ࡜ ⣧ 㕲 ࡢ ⃿ ࢀ ᛶ ࢆ ⢭ ᐦ ࡟ ホ ౯ ࡍ ࡿ ࡜ ඹ ࡟ ࠊᐇ 㝿 ࡟ ✀ ࠎ ࡢ ◳ ㉁ ⷧ ⭷ ࢆ ⿕そࡋࡓษ๐ࢳࢵࣉࢆ⏝࠸࡚㗰࡟ᑐࡍࡿษ๐ヨ㦂ࢆ⾜࠺ࡇ࡜࡛⃿ࢀᛶ࡜ᕤලᛶ⬟࡜ࡢ㛵ಀᛶࢆヲ⣽࡟᳨ウࡋࡓࠋ
2. ᐇ 㦂 ᪉ ἲ⿕ ຍ ᕤ ᮦ ࡟ ᑐ ᛂ ࡍ ࡿ ⁐ ⼥ 㔠 ᒓ ࡢ ౪ ヨ ᮦ ࡜ ࡋ ࡚ ࠊ ᕤ ᴗ ⏝ ⣧ 㕲 㸦 ⣧ ᗘ 99.995 mass%㸧 ࢆ ౑ ⏝ࡋ ࡓ ࠋࡲ ࡓ ࠊ⃿ ࢀ ᛶ ࢆ ホ ౯ ࡍ ࡿ ࡓ ࡵ ࡢ ౪ ヨ ᮦ㸦 ◳ ㉁ ⷧ ⭷ 㸧࡟ ࡣ ࠊW ෇ ᯈ㸦 ȭ 20 mm5 mm㸧ୖ ࡟ TiNࠊ TiCNࠊ TiAlNࠊ TiSiNࠊ TiBON ཬ ࡧ CrN ࡢ ྛ ✀ ⷧ ⭷ ࢆ PVD ἲ ࡟ ࡼ ࡾ ࢥ ࣮ ࢸ ࢕ ࣥࢢ ࡋ ࡓ ヨ ᩱ ࢆ ⏝ ࠸ ࡓ ࠋ ࡇ ࢀ ࡽ ࡢ ∦ ഃ ⾲ 㠃 ࢆ ࢚ ࣓ ࣜ ࣮ ⣬ # 1000 ࠿ ࡽ # 2000 ࢆ ⏝ ࠸ ࡚ ‵ ₶ ◊ ☻ࢆ ᪋ ࡋ ࠊ3 μm ཬ ࡧ 1 μm ࡢ ࢲ ࢖ ࣖ ࣔ ࣥ ࢻ ࣃ ࢘ ࢲ ࣮ ࡛ 㙾 㠃 ࡟ ࡞ ࡿ ࡲ ࡛ ࣂ ࣇ ◊ ☻ ࢆ ⾜ ࠺ ࡇ ࡜ ࡛ ࠊ⾲ 㠃 ⢒ ࡉ Ra ࢆ ⣙ 0.05 μm ࡟ ࡋ ࡓ ࠋ ษ ๐ ヨ 㦂 ࡢ ⿕ ๐ ᮦ ࡟ ࡣ እ ᚄ 96.0 mm ࡟ ຍ ᕤ ࡋ ࡓ Ⅳ ⣲ 㗰
S25C ࢆ ⏝ ࠸ ࠊษ ๐ ࢳ ࢵ ࣉ ࡟ ࡣ ㉸ ◳ ྜ 㔠 ࢫ ࣟ ࣮ ࢔ ࢘ ࢙ ࢖ ࢳ ࢵ ࣉ ୖ ࡟ TiNࠊTiCNࠊTiAlNࠊTiSiNࠊ
TiBON ཬ ࡧ CrN ࡢ ྛ ✀ ⷧ ⭷ ࢆ PVD ἲ ࡟ ࡼ ࡾ ࢥ ࣮ ࢸ ࢕ ࣥ ࢢ ࡋ ࡓ ࡶ ࡢ ࢆ ⏝ ࠸ ࡓ ࠋ᥋ゐゅࡢᐃ ࡟ ⏝ ࠸ ࡓ ᨵ Ⰻ ᆺ 㟼 ⁲ ἲ ⿦ ⨨ ࡢ ᴫ ␎ ᅗ ࢆ Fig. 1 ࡟ ♧ ࡍ ࠋ ᮏ ᡭ ἲ ࡣ ࢳ ࣕ ࣥ ࣂ ࣮ୖ㒊࡟タ⨨ࡋࡓ⁲ୗ⟶ࢆ⏝࠸ࡿࡇ࡜࡛ࠊ⁐⼥㔠ᒓࢆ⁲ୗࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡾࠊᾮ⁲࡜ᇶ
ᯈࡀ᥋ゐࡋࡓ᫬Ⅼ࠿ࡽࡢ⃿ࢀࡢ⤒᫬ኚ໬ࢆᐃ࡛ࡁࡿ➼ࡢ≉ᚩࢆ᭷ࡋ࡚࠸ࡿࠋࡲࡓࠊ஧᪉ྥ ࠿ ࡽ ᧜ ᙳ ࢆ ⾜ ࠺ ࡇ ࡜ ࡛ ࠊᾮ ⁲ ࡢ ᑐ ⛠ ᛶ ࢆ ☜ ㄆ ࡍ ࡿ ࡇ ࡜ ࡀ ࡛ ࡁ ࡿ ࠋ᥋ ゐ ゅ ࡣ Ar+3%H 2 ࢞ ࢫ୰࡛ᐃ 㞺 ᅖ Ẽ ࢆ 1000Υ ࡲ ࡛ ຍ ⇕ ࡋ ࡚ ࠿ ࡽ 㕲 ࢆ ⁲ ୗ ࡋ ࠊࡑ ࡢ ᙧ ≧ ኚ ໬ ࢆ ᧜ ᙳ ࡋ ࡚ ᚓ ࡽ ࢀ ࡓ

⏬ീ࠿ࡽィ

ࡋࡓࠋ

Ⅳ ⣲ 㗰 ࡢ ษ ๐ ࡣ 㧗 ㏿ ⢭ ᐦ ᪕ ┙ 㸦 ᰴ ᘧ ఍ ♫ ࢸ ࢡ ࣀ ࣡ ࢩ ࣀ 〇 LEO-80A㸧 ࢆ ౑ ⏝ ࡋ ࠊ እ ᚄ ⏝ ࣍ࣝࢲ࡟ṍࢤ࣮ࢪᘧᕤලືຊィࠊືṍᐃ ჾ ࠊ FFT ࢔ ࢼ ࣛ ࢖ ࢨ ࣮ ࢆ ᥋ ⥆ ࡋ ࡚ ษ ๐ ᢬ ᢠ ࡢ− 151 −ᐃࢆ ⾜ ࡗ ࡓ ࠋ ษ ๐ ᪉ ᘧ ࡟ ࡣ ୕ ḟ ඖ ษ ๐ ࢆ ᥇ ⏝ ࡋ ࠊ ษ ๐ ᮲ ௳ ࡣ ษ ๐ ㏿ ᗘ 76.3 m/minࠊ ㏦ ࡾ ㏿ ᗘ
0.1 mm/revࠊ ษ ࡾ ㎸ ࡳ 0.5 mm ࡛ ୍ ᐃ ࡜ ࡋ ࡓ ࠋ ษ ๐ ࡣ 1.0 mm ࡢ ῝ ࡉ ࡢ ⁁ ࢆ ➼ 㛫 㝸 ࡟ స ࡾ ࠊẖᅇ᪂ࡋ࠸⁁࡛ษ๐ࢆ㛤ጞࡍࡿࡇ࡜࡛ࠊᖖ࡟᪂⏕㠃࡛ࡢᐃ࡜࡞ࡿࡼ࠺࡟ࡋࠊษ๐᢬ᢠ್

࡬ࡢᙳ㡪ࢆ㝖ཤࡋࡓࠋF i g . 1 Sc h e m at i c i l l u s tr a tio n s o f t h e e x p e r i m e n t a l a p p ar a t u s .

3. ᐇ 㦂 ⤖ ᯝ ࡜ ⪃ ᐹFig. 2 ࡟ FFT ࢔ ࢼ ࣛ ࢖ ࢨ ࣮ ࡟ ࡼ ࡾᐃࡋࡓษ๐ࢳࢵࣉ࡟ᑐࡍࡿ୺ศຊ࡜㏦ࡾศຊࡢ௦⾲ⓗ࡞ᐃ ⤖ ᯝ ࢆ ♧ ࡍ ࠋྠ ᵝ ࡢ Ἴ ᙧ ࡀ ྛ ✀ ⷧ ⭷ ࡛ ᚓ ࡽ ࢀ ࡿࡀ ࠊᮏ ◊ ✲ ࡛ ࡣ ୺ ศ ຊ ࡢ ್ ࢆ ษ ๐ ᢬ ᢠ ࡜ ࡋ ࡚ ホ ౯ࡢ ᑐ ㇟ ࡜ ࡋ ࡓ ࠋ Fig. 3 ࡟ Ⅳ ⣲ 㗰 ࡟ ᑐ ࡍ ࡿ ྛ ✀ ษ ๐ࢳ ࢵ ࣉ ࡢ ษ ๐ ᢬ ᢠ ್ ࢆ ♧ ࡍ ࠋⷧ ⭷ ࡢ ✀ 㢮 ࡟ ࡼ ࡗ ್࡚ ࡀ ␗ ࡞ ࡗ ࡚ ࠸ ࡿ ࡀ ࠊ TiAlN ⭷ ࡛ ᭱ ᑡ ࡜ ࡞ ࡾ ࠊ ཯ᑐ ࡟ CrN ⭷ ࡛ ࡣ ኱ ࡁ ࡞ ್ ࢆ ♧ ࡋ ࡚ ࠸ ࡿ ࠋ ࡇ ࡇ ࡛ ࠊᨵⰋᆺ㟼⁲ἲ࡟ࡼࡗ࡚ᚓࡽࢀࡓྛ✀ⷧ⭷࡜⁐⼥⣧ 㕲 ࡢ ึ ᮇ ᥋ ゐ ゅ ࡣ TiN㸸 106rࠊ TiCN㸸 108rࠊ

F i g . 2 C u tt i n g r e sis tan c e me a su r e d
by a F FT an aly z er.

TiAlN 㸸 117 r ࠊ TiSiN 㸸 110 r ࠊ TiBON 㸸 97 r ཬ ࡧ
CrN㸸 0r࡛ ࠶ ࡾ ࠊ⃿ ࢀ ᛶ ࡢ ホ ౯ ⤖ ᯝ ࡜ ษ ๐ ᢬ ᢠ ್࡟ ࡣ ┦ 㛵 ࡀ ㄆ ࡵ ࡽ ࢀ ࡿ㸦 ᥋ ゐ ゅ ࡢ ኱ ࡁ ࠸ TiAlN ⭷࡛ ษ ๐ ᢬ ᢠ ࡀ ᑠ ࡉ ࡃ ࠊ᥋ ゐ ゅ ࡢ ᑠ ࡉ ࠸ CrN ⭷ ࡛ ษ๐ ᢬ ᢠ ࡀ ኱ ࡁ ࡃ ࡞ ࡗ ࡚ ࠸ ࡿ 㸧ࠋࡇ ࡇ ࡛ ࠊTiN ⭷ ࡟ ࠾࠸࡚ࡣ᥋ゐゅࡢ್࡟ᑐࡋ࡚ษ๐᢬ᢠࡀ኱ࡁࡃ࡞ࡗ ࡚ ࠸ ࡿ ࡀ ࠊⷧ ⭷ ⾲ 㠃 ࡬ ࡢ TiO 2 ࡢ ᙳ 㡪 ࡛ ぢ ࠿ ࡅ ࡢ
᥋ゐゅࡀቑ኱ࡋࡓࡇ࡜ࡀཎᅉ࡛࠶ࡿ࡜⪃࠼ࡽࢀ
Fig.3 Cut t i n g r e si st an c e of
too ls w ith v ariou s th in fil ms.

ࡿࠋ

the

4. ⤖ ゝ ษ๐᢬ᢠ࠾ࡼࡧ⁐╔⌧㇟ࡢほᐹ࠿ࡽ⃿ࢀᛶ࡜ᕤලᛶ⬟࡜ࡢ㛵ಀᛶࢆㄪᰝࡋࡓ⤖ᯝࠊษ๐᢬ ᢠ ࡢ ್ ࡜ ᥋ ゐ ゅ ࡣ Ⰻ ࠸ ┦ 㛵 ࢆ ♧ ࡋ㸦 ᥋ ゐ ゅ ࡀ ኱ ࡁ ࠸ ࡯ ࡝ ษ ๐ ᢬ ᢠ ࡣ ᑠ ࡉ ࡃ ࡞ ࡾ 㸧ࠊᕤ ල ⏝◳㉁ⷧ⭷ࡢホ౯ᡭἲ࡟࠾࠸࡚⃿ࢀᛶࢆ฼⏝ࡍࡿࡇ࡜ࡣ㠀ᖖ࡟᭷ຠ࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞
ࡗࡓࠋ㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 152 −

㔜ࡡᦶ᧿ᨩᢾࣉࣟࢭࢫ࡟ࡼࡿ࣐ࢢࢿࢩ࣒࢘ྜ㔠ࡢࢼࣀ⤌⧊໬ᆅ᪉⊂❧⾜ᨻἲே኱㜰ᕷ❧ᕤᴗ◊✲ᡤ
ᮌඖ៞ஂ
1. ┠ⓗ
ᦶ᧿ᨩᢾ᥋ྜ㸦FSW㸧1) ࡟࠾ࡅࡿ᥋ྜ㒊ࡢ⤌⧊ᚤ⣽໬ຠᯝࢆ⾲㠃ᨵ㉁࡟ᛂ⏝ࡋࡓᦶ᧿ᨩᢾࣉࣟࢭࢫ㸦FSP㸧2) ࡣ㸪ᨩᢾ㒊࡟ᚤ⣽◳㉁⢏Ꮚࢆᑟධࡋ⾲㠃」ྜ໬ࢆ⾜࠺ᦶ᧿ᨩᢾ⢊ᮎࣉࣟࢭࢫ㸦FSPP㸧࡬࡜Ⓨᒎࡋ 3, 4) 㸪᭱㏆࡛ࡣ㸪ྜ㔠ඖ⣲⢊ᮎࢆᨩᢾ㒊࡟ᑟධࡋ㸪㔠ᒓ㛫໬ྜ≀┦ࡀᚤ⣽ᯒฟࡋࡓࢼࣀ⤌⧊ࢆࡑࡢሙᙧᡂࡍࡿヨࡳ 5) ࡀሗ࿌ࡉࢀ࡚
࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪Mg ྜ㔠 AZ91 ᯈᮦ࡜ Cu ⷧᯈࡢ㔜ࡡᦶ᧿ᨩᢾࣉࣟࢭࢫ㸦friction stir lap processing; FSLP㸧࡟ࡼࡾᨩᢾ㒊࡟㒊ศྜ㔠໬ᒙࢆᙧᡂࡋࡓ㸬ࡉࡽ࡟㸪ྠ୍⟠ᡤ࡟ᑐࡍࡿ࣐ࣝࢳࣃࢫ FSLP ࢆ⾜࠸㸪ᨩᢾ㒊ࡢ⤌ᡂ࠾ࡼࡧ⤌⧊ࡢᆒ㉁໬ࢆヨࡳࡓ㸬
2. ◊✲᪉ἲ
ཌࡉ 4 mm ࡢ AZ91㸦Mg-9Al-1Zn㸧ᯈᮦ࡟ཌࡉ 0.5mm ࡢ⣧ Cuⷧᯈࢆ㔜ࡡྜࢃࡏ㸪ࡑࡢୖ࠿ࡽᅇ㌿㏿ᗘ 1500 rpm, ㏦ࡾ㏿ᗘ
35mm/min㸪Ⲵ㔜 650 kgf ࡟࡚ 1㹼3 ࣃࢫࡢ FSLP ࢆ⾜ࡗࡓ㸬FSLP
ᚋࡢྛヨᩱ࡟ᑐࡋ㸪ගᏛ㢧ᚤ㙾࠾ࡼࡧ SEM ࡟ࡼࡿ᩿㠃ほᐹ㸪EDX
࡟ࡼࡿඖ⣲ศᯒ㸪XRD ࡟ࡼࡿ┦ࡢྠᐃࢆ⾜ࡗࡓ㸬ᅗ 1 㔜ࡡᦶ᧿ᨩᢾࣉࣟࢭࢫ

3. ⤖ᯝ࠾ࡼࡧ⪃ᐹ
⾲ 1 ࡟㸪1 ࣃࢫ࠾ࡼࡧ 3 ࣃࢫࡢ FSLP ࡟ࡼࡾస〇ࡉࢀࡓ AZ91-Cu ྜ㔠ᒙࡢ᩿㠃࣐ࢡࣟ⤌⧊㸪῝ࡉ᪉ྥඖ⣲ศᕸ㸪࣑ࢡࣟ⤌⧊㸪ᵓᡂ┦ࢆࡑࢀࡒࢀ♧ࡍ㸬1 ࣃࢫฎ⌮ᚋࡢヨᩱ࡛ࡣ㸪AZ91 ࠾ࡼࡧ Cu ࡀ࡯ࡰศ㞳ࡋࡓ୙ᆒ㉁࡞⤌⧊ࢆ♧ࡋ㸪Cu ⃰ᗘศᕸࡶ῝ࡉ᪉ྥ࡟኱ࡁࡃኚືࡋࡓ㸬୍᪉㸪3 ࣃࢫฎ⌮ᚋࡢヨᩱ࡛ࡣ㸪⾲㠃㏆ഐࢆ㝖ࡁ⣙ 1mm
ࡢཌࡉࡢ㡿ᇦ࡛࡯ࡰᆒ㉁࡞ྜ㔠໬ᒙ㸦ᖹᆒ Cu ⃰ᗘ⣙ 25wt.%㸧ࡀᚓࡽࢀ㸪ࡑࢀ௨㝆 Cu ⃰ᗘࡀ⦆ࡸ࠿࡟ഴᩳࡍࡿ
⃰ᗘศᕸࡀᚓࡽࢀࡓ㸬ᨩᢾ㒊ࡢᚤ⣽⤌⧊ࢆẚ㍑ࡍࡿ࡜㸪1 ࣃࢫฎ⌮ᚋࡢ࣑࢟ࢩࣥࢢࡀ㐍⾜ࡋࡓ㡿ᇦ࡟࠾࠸࡚ Mg
࠾ࡼࡧ Cu ࡀ⣙ 10ȣm 㛫㝸࡛✚ᒙࡋࡓከᒙ⤌⧊ࡀぢࡽࢀࡓࡀ㸪3 ࣃࢫฎ⌮࡟ࡼࡗ࡚ከᒙ⤌⧊ࡣᾘኻࡋ㸪ᨩᢾ㒊ࡢ࡯ࡰ඲ᇦ࡛㸪⤖ᬗ⢏࠾ࡼࡧᯒฟ≀ࡢᚄࡀ࠸ࡎࢀࡶ 3ȣm ௨ෆࡢᆒ㉁࡞㉸ᚤ⣽⤌⧊ࡀᚓࡽࢀࡓ㸬XRD ࡟࠾࠸࡚ࡣ㸪
1 ࣃࢫࡢヨᩱ࡛ࡣ Mg ᅛ⁐య࠾ࡼࡧ 3 ✀ࡢ㔠ᒓ㛫໬ྜ≀┦ Cu2Mg, CuMg2, CuMgAl ࡀ᳨ฟࡉࢀࡓࡀ㸪3 ࣃࢫฎ⌮ᚋࡢヨᩱ࡛ࡣ Mg ᅛ⁐య࠾ࡼࡧ CuMgAl ࡢࡳ࡜࡞ࡾ㸪ᆒ㉁໬࡟ࡼࡾ┦ᵓᡂࡀ༢⣧໬ࡋࡓ㸬
4. ⤖ㄽ
AZ91/Cu ⣔࣐ࣝࢳࣃࢫ FSLP ࡟ࡼࡿࢼࣀ⤌⧊ྜ㔠ࡢ๰〇ࢆヨࡳࡓ㸬0.5mm ཌࡢ Cu ᯈࢆ⏝࠸ࡓሙྜ㸪1 ࣃࢫฎ⌮ᚋ࡟⏕ᡂࡋࡓ Mg/Cu ከᒙ⤌⧊ࡀ 3 ࣃࢫฎ⌮ᚋ࡟ᾘኻࡋ㸪ᨩᢾ㒊࡟ᖹᆒ Cu ⃰ᗘ 25wt.%, ᚄ 3ȣm ௨ୗࡢᯒฟ≀ CuMgAl ࡀศᩓࡋࡓᆒ㉁࡞ᚤ⣽⤌⧊ࡀᚓࡽࢀࡓ㸬
5. ཧ⪃ᩥ⊩1) Thomas, W M et al., International patent application No. PCT/GB92/02203 and GB patent application
No.9125978.8 (1991).
2) R.S. Mishra, et al., Scr. Mater. 42 (2000) 163-168.
3) R.S. Mishra and Z.Y. Ma, Mater. Sci. Eng. A 341 (2003) 307-310.
4) Y. Morisada, et al., Mater. Sci. Eng. A 416 (2006) 344–348.
5) K. Inada, et al., Science and Technology of Welding and Joining 15 (2010) 131-136.

− 153 −

⾲ 1 FSLP ࡟ࡼࡾస〇ࡉࢀࡓ AZ91-Cu ྜ㔠ᒙࡢ᩿㠃⤌⧊࠾ࡼࡧඖ⣲ศᕸ
1 ࣃࢫฎ⌮ᚋ

3 ࣃࢫฎ⌮ᚋ

࣐
ࢡ
ࣟ
⤌
⧊
䥹
ග
Ꮫ
㢧
ᚤ
㙾
෗
┿
䥺

EDX

ඖ
⣲
ศ
ᕸ
䥹
ඖ
⣲
ศ
ᯒ
䥺

SEM

࣑
ࢡ
ࣟ
⤌
⧊
䥹
෗
┿
䥺

X
⥺
ᅇ
ᢡ
䥺

1 passIntensity 1/2 (a. u.)

(a)

ᵓ
ᡂ
┦
䥹

(Mg)
CuMg2
Cu2Mg
CuMgAl㻢㻡㻙㻟㻟㻢㻡㻪㻌㻹㼓㻌㻙㻌㻹㼍㼓㼚㼑㼟㼕㼡㼙㻝㻟㻙㻜㻡㻜㻠㻪㻌㻯㼡㻹㼓㻞㻌㻙㻌㻯㼛㼜㼜㼑㼞㻌㻹㼍㼓㼚㼑㼟㼕㼡㼙㻜㻝㻙㻝㻞㻞㻢㻪㻌㻯㼡㻞㻹㼓㻌㻙㻌㻯㼛㼜㼜㼑㼞㻌㻹㼍㼓㼚㼑㼟㼕㼡㼙㻞㻤㻙㻜㻜㻝㻟㻪㻌㻭㼘㻯㼡㻹㼓㻌㻙㻌㻭㼘㼡㼙㼕㼚㼡㼙㻌㻯㼛㼜㼜㼑㼞㻌㻹㼍㼓㼚㼑㼟㼕㼡㼙

20

30

40

50

60

2T (deg.)

70

80

90

100

㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 154 −

᪂ᶵ⬟ᮦᩱࡢ⁐᥋࣭᥋ྜࣉࣟࢭࢫࡢ㛤Ⓨ࡜ホ౯㸦ረᛶὶືࢆ฼⏝ࡋࡓ␗✀㔠ᒓⅬ᥋ྜᢏ⾡ࡢ㛤Ⓨ㸧                              ᗈᓥ┴❧⥲ྜᢏ⾡◊✲ᡤ                                ᆏᮧ ຾㸪኱▼ 㑳

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㍑⏝࡜ࡋ࡚ཌࡉPPࡢ63&&࡟ࡘ࠸࡚ࡶྠᵝࡢ᥋ྜࢆᐇ᪋ࡋ
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ࡣ63&&࡟ẚࡋప࠸࡜࠸࠺ഴྥࡀㄆࡵࡽࢀࡓ㸬ࡲࡓ㸪6(0෗┿ࡼࡾ㸪*,㗰ᯈ࡛ࡣගᏛ㢧ᚤ㙾෗┿୰ࡢЎЎࡢ㡿ᇦࡀ᥋ྜࡉࢀ࡚࠸ࡿࡢ࡟ᑐࡋ࡚㸪*$㗰ᯈ㸪63&&࡛ࡣ᥋ྜࡉࢀ࡚࠸࡞࠸ࡇ࡜ࡀศ࠿ࡿ㸬− 155 −

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್ࡣ࡯

ࡰPP࡛࠶ࡾ㸪ࡇࢀ௨ୖࡢᢲ㎸ࡳࡣ୙ྍ⬟࡛࠶ࡗࡓ㸬ࡇࢀ࡟ᑐࡋ࡚㸪*$㗰
ᯈཬࡧ63&&࡟ࡘ࠸࡚ࡣࢶ࣮ࣝᢲ㎸㔞ࡢ≺࠸್࡜ᐇ

್ࡣ࡯ࡰ୍⮴ࡋ࡚࠸ࡓ㸬*$㗰ᯈࡣ≺࠸ᢲ㎸㔞PPࡲ࡛ࡣ㸪)LJ5HODWLRQVKLSEHWZHHQWKHWDUJHWSOXQJHGHSWKDQGWKHWHQVLOHVKHDUVWUHQJWK ᘬᙇࡏࢇ᩿ᙉᗘࡣ࡯ࡰ࡛࠶ࡗࡓࡀ㸪PP௨ୖ࡛ࡣୖ᪼ࡋ㸪≺࠸ᢲ㎸㔞PP࡛ࡣ⣙N1࡟㐩ࡋࡓ㸬୍᪉㸪*,㗰ᯈ࡟ࡘ࠸࡚ࡣ㸪≺࠸ᢲ㎸㔞PPࡲ࡛ࡣᚤቑࡋ㸪≺࠸ᢲ㎸㔞PP௨ୖ࡛ࡣ⣙N1࡟㐩ࡋࡓ㸬*$㗰ᯈࡢ᥋ྜᙉᗘୖ᪼࡟ࡘ࠸࡚ࡣ㸪)LJ࡟♧ࡋࡓࡼ࠺࡟㸪㗰ࡢ✺㉳࡟㉳ᅉࡍࡿࡶࡢ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪*,㗰ᯈࡢᙉᗘୖ᪼࡟ࡘ࠸࡚ࡣ㸪)LJࡢ6(0෗┿࡟♧ࡍ࡜࠾ࡾ㸪࢔࣑ࣝ㗰ྜࢃࡏ㠃ࡢ᥋ྜ㠃✚ࡀ≺࠸ᢲ㎸㔞PPࡲ࡛ࡣቑ኱ഴྥ
࡟࠶ࡿࡇ࡜࡟㉳ᅉࡋ࡚࠸ࡿࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬
㸲㸬⤖ゝ
㸲㸬⤖ゝ
ᦶ᧿࢔࣮ࣥ࢝᥋ྜࢆ$㸦PP㸧*,㗰ᯈ㸦PP㸧ཬࡧ*$㗰ᯈ㸦PP㸧ᯛ㔜ࡡ⥅ᡭ࡟㐺⏝ࡋࡓ㸬ࡑࡢ⤖ᯝ㸪*,㗰ᯈ࡛ࡣ✺㉳ࡀᙧᡂࡉࢀ࡞࠸ࡶࡢࡢᘬᙇࡏࢇ᩿ᙉᗘࡣ⣙N1࡟㐩ࡋࡓ㸬ࡲࡓ㸪*$㗰ᯈ࡛ࡣ✺㉳ࡀᙧᡂࡉࢀ㸪ࡏࢇ᩿ᙉᗘࡣ⣙N1࡟㐩ࡋࡓ㸬

ཧ⪃ᩥ⊩
ཧ⪃ᩥ⊩
  . 2KLVKL 0 6DNDPXUD . 2WD DQG + )XMLL 1RYHO 'LVVLPLODU 6SRW :HOGLQJ RI $OXPLQXP $OOR\ DQG 6WHHO 6KHHWV E\ )ULFWLRQ 6WLUULQJ 4XDUWHUO\ -RXUQDO RI -DSDQ :HOGLQJ 6RFLHW\     LQ -DSDQHVH   0 6DNDPXUD . 2KLVKL . 2WD < 7DNH\DVX 6 0L]XQDUL DQG + )XMLL 'LVVLPLODU VSRW ZHOGLQJ RI WK
UHH ODSSHG VKHHWV RI DOXPLQXP DOOR\ DQG VWHHOV E\ PHWDO IORZ -RXUQDO RI /LJKW 0HWDO :HOGLQJ 
   LQ -DSDQHVH 㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 156 −

ኚືⲴ㔜ୗ࡟࠾ࡅࡿ༑Ꮠᘬᙇᆺᦶ᧿ᨩᢾⅬ᥋ྜ⥅ᡭࡢ⑂ປ≉ᛶᗈᓥ኱Ꮫ኱Ꮫ㝔 ᕤᏛ◊✲⛉ ᶵᲔ≀⌮ᕤᏛᑓᨷ Ⳣ⏣ ῟䠍䠊◊✲⫼ᬒ䠈䛚䜘䜃┠ⓗ㻌㏆ᖺ䠈⁐⼥⁐᥋᫬䛾ၥ㢟䜢ゎỴ䛷䛝䜛᪂䛧䛔᥋ྜᢏ⾡䛾୍䛴䛸䛧䛶䠈ᦶ᧿ᨩᢾ᥋ྜ(FSW)ᢏ⾡䛜ὀ┠䜢㞟䜑䛶䛔䜛䠊ྠᢏ⾡䛿ከ䛟䛾฼Ⅼ䜢᭷䛩䜛᥋ྜᢏ⾡䛷䛒䜛䜒䛾䛾䠈᪋ᕤୖ䛾ၥ㢟Ⅼ䛛䜙ᑐ㇟䛜㍍㔠ᒓ䛻㝈䜙䜜䛶䛚䜚䠈ᚑ᮶䛾᥋ྜ᪉ἲ䛷䛿㕲㗰ᮦᩱ䛻ᑐ䛩䜛᪋ᕤ䛿ᅔ㞴䛷䛒䜛䛣䛸䛻ຍ䛘䠈䝁䝇䝖㠃䛻䛚䛔䛶୙฼䛸䛥䜜䛶䛔䛯䠊䛧䛛䛧䠈㏆ᖺ䛷䛿✀䚻䛾㗰ᮦ䛻ᑐ䛧ẚ㍑ⓗᏳ౯䛻㗰ᮦྠኈ䛾ᦶ᧿ᨩᢾ᥋ྜ䜢ྍ⬟䛻䛩䜛ᢏ⾡㛤Ⓨ䛜㐍ᤖ䛧䛶䛚䜚䠈ᑗ᮶ⓗ䛻ྠᢏ⾡䛾㐺⏝⠊ᅖ䛜኱ᖜ䛻ᣑ኱䛩䜛䛣䛸䛜ᮇᚅ䛥䜜䜛䠊䛣ࢀࡲ࡛ࡢ FSSW ⥅ᡭ࡟㛵ࡍࡿ⑂ປ≉ᛶࡢ᳨ウࡣ㸪඲࡚ᛂຊẚࡀ R=0.01 ࡢ୍ᐃヨ㦂ຊ᣺ᖜ᮲௳ୗ࡟ࡼࡿࡶࡢ
࡛࠶ࡾ㸪ᐇ㝿䛾ᵓ㐀≀䛻స⏝䛩䜛ᐇാⲴ㔜䛿䠈ヨ㦂ຊ᣺ᖜ䜔࿘Ἴᩘ䛜」㞧䛻ኚ໬䛩䜛ኚືⲴ㔜䛜䜋䛸䜣䛹䛷䛒䜛䠊䛭䛣䛷䠈ᮏ◊✲䛷䛿䠈⮬ື㌴⏝㗰ᯈ SPCC 䜢ᦶ᧿ᨩᢾⅬ᥋ྜ(FSSW)䛻䜘䜚᥋ྜ䛧䛯ヨ㦂య䜢ᑐ㇟䛸䛧䠈஧ẁ⧞㏉䛧ኚືⲴ㔜ୗ䛻䛚䛡䜛⑂ປ≉ᛶ䛻䛴䛔䛶ᐇ㦂ⓗ᳨ウ䜢⾜䛳䛯䠊㻌䠎䠊౪ヨᮦ䛚䜘䜃ᐇ㦂᪉ἲ㻌ᮏ◊✲䛷౑⏝䛧䛯౪ヨᮦᩱ䛿ᯈཌt = 0.8mm 䛾 300MPa ⣭⮬ື㌴⏝㗰ᯈSPCC 䛷䛒䜛䠊ྠᮦ䜢▷෉≧(150mm×50mm)䛻ᶵᲔຍᕤᚋ䠈2 ᯛ䛾㗰ᯈ䜢༑Ꮠᆺ䛻㔜䛽䠈䛭䛾୰ኸ㒊䛻䝍䞁䜾䝇䝔䞁䜹䞊䝞䜲䝗(WC)䜢ᮦ㉁䛸䛩䜛䝒䞊䝹䜢⏝䛔䛶ᦶ᧿ᨩᢾⅬ᥋ྜ䜢᪋䛧౪ヨᮦ䛸䛧䛯䠊䠄᭱኱Ⲵ㔜 1500kgf䠈䝒䞊䝹ᅇ㌿㏿ᗘ 550rpm䠈ಖᣢ᫬㛫 2䡚5 ⛊䠅⑂ປヨ㦂䛿䠈ᓥὠ〇సᡤ〇㟁ẼἜᅽᘧ䝃䞊䝪䝟䝹䝃䜢⏝䛔䠈࿘Ἴᩘ䛿 f=5~10Hz䠈ヨ㦂య䛾 2 ᯛ䛾㗰ᯈ䛜᏶඲䛻ศ㞳䛧䛯
᫬Ⅼ䜢⑂ປ◚ቯ䛾⧞㏉䛧ᩘ䛸ᐃ⩏䛸䛧䛯䠊㻟㻚㻌 㻌 ヨ㦂⤖ᯝ䛚䜘䜃⪃ᐹ㻌㻟㻙㻝㻌 ஧ẁ⧞㏉䛧ኚືヨ㦂㻌 ஧ẁ⧞㏉䛧ኚືヨ㦂䛻⏝䛔䛯ヨ㦂Ἴᙧ䛾ᶍᘧᅗ䜢 Fig. 1 䛻♧䛩䠊ྠᅗ䛻♧䛩䜘䛖䛻䠈పヨ㦂ຊ⠊ᅖ ǻPL 䜢 nL ᅇ㈇Ⲵ䛧䛯ᚋ䠈㧗ヨ㦂ຊ⠊ᅖ ǻPH 䜢 nH ᅇ㈇Ⲵ䛧䛯䜒䛾䜢 1 䝤䝻䝑䜽䛸䛧䛯䠊䛺䛚䠈ᮏヨ㦂య䛿 0.4~0.5kN 䛾⠊ᅖ䛻䛶᥋ྜ㒊㏆ഐ䛷ረᛶኚᙧ䛜⏕䛨䜛䛯䜑䠈(a)᥋ྜ㒊㏆ഐ䛷ረᛶኚᙧ䛜⏕䛨䜛ሙྜ䠈䛚䜘䜃(b)᥋ྜ㒊㏆ഐ䛷ረᛶኚᙧ䛜⏕䛨䛺䛔ሙྜ䛻ศ䛡䛶ᐇ㦂ⓗ᳨ウ䜢⾜䛳䛯䠊ᮏሗ࿌᭩䛷䛿⣬㠃䛾㛵ಀୖ䠈(b)᥋ྜ㒊㏆ഐ䛷ረᛶኚᙧ䛜⏕䛨䛺䛔஧ẁ⧞㏉䛧ኚືヨ

Applied force [kN]㦂䛾⤖ᯝ䛻䛴䛔䛶ヲ⣽䜢㏙䜉䜛䠊

nL

nH

Cosine waveǻPH
=2Pa,HǻPL=2Pa,L0

Ramp wave
Time [s]Fig. 1 Schematic illustration of two step variable force amplitude.

㻟㻙㻝㻙㻝㻌 ረᛶኚᙧ䜢క䜟䛺䛔ヨ㦂ຊ᣺ᖜ䛻䜘䜛஧ẁ⧞㏉䛧ኚືヨ㦂㻌 㻌 ᮏ㡯䛷䛿䠈᥋ྜ㒊㏆ഐ䛻ረᛶኚᙧ䛜⏕䛨䛺䛔ヨ㦂ຊ᣺ᖜ䛻䛶⾜䛳䛯஧ẁ⧞㏉䛧ኚືヨ㦂⤖ᯝ䛻䛴䛔䛶㏙䜉䜛䠊஧ẁ⧞㏉䛧ኚືヨ㦂䜘䜚ᚓ䜙䜜䛯⤖ᯝ䜢 Fig. 2 䛻♧䛩䠊䛺䛚䠈ᅗ୰䛾ྛⲴ㔜㢖ᗘẚ䛚䛡䜛䛭䜜䛮䜜䛾䝥䝻䝑䝖䛿ಟṇ䝬䜲䝘䞊๎䛻䛶D=1 䛸௬ᐃ䛧䛯㝿䛾⑂ປ㝈ᗘ௨ୗ䛾ヨ㦂ຊ᣺ᖜ䛻䛚䛡䜛௬᝿ⓗ䛺◚᩿⧞㏉䛧ᩘ䜢♧䛧䛶䛔䜛䠊ྠᅗ䛻䛚䛔䛶䠈௬᝿ⓗ䛺◚᩿⧞㏉䛧ᩘ䛿ྛⲴ㔜㢖ᗘẚ䛻ᑐ䛧䜀䜙䛴䛝䛜ㄆ䜑䜙䜜䜛䠊䛭䛾䛯䜑䠈⑂ປ㝈ᗘ௨ୖ䛾ヨ㦂ຊ᣺ᖜ䛾㢖ᗘ䛻క䛔⑂ປ㝈ᗘ௨ୗ䛾ヨ㦂ຊ᣺ᖜ䛜ヨ㦂య䛻୚䛘䜛ᙳ㡪䜢෌⪃䛧䠈⑂ປᦆയホ౯䜢ಟṇ䛩䜛ᚲせ䛜䛒䜛䛸᥎ᐹ䛥䜜䜛䠊− 157 −

Applied force amplitude,Pa [N]1000

Constant
nH/nL=200/1000
nH/nL=200/2000
nH/nL=200/6000
nH/nL=200/24000

100

10

103
104
105
106
107
108
*
Number of cycles to failure,Nf and Estimate life,Nf [cycles]
Fig. 2 P-N curve.

㻌 㻔㼍㻕㻌 䝝䜲䝞䝑䝝䛾᪉ἲ䛻䜘䜛ಟṇ㻌 Fig. 2 䛻♧䛩 4 䛴䛾␗䛺䜛ヨ㦂᮲௳䛾୰䛛䜙䠈nH/nL=200/6000䠈䛚䜘䜃 200/24000 䛻䛴䛔䛶䛿䝝䜲䝞䝑䝝䛾᪉ἲ䜢ᥦ᱌䛧䛯䠊ྠಟṇ᪉ἲ䛿䠈ヨ㦂Ἴᙧ䛻ྵ䜎䜜䜛⑂ປ㝈ᗘ௨ୗ䛾ヨ㦂ຊ᣺ᖜ㢖ᗘ䛜኱䛝䛔ሙྜ䛻᭷ຠ䛷䛒䜛䛣䛸䛜▱䜙䜜䛶䛔䜛䠊䝝䜲䝞䝑䝝䛾᪉ἲ䛻䜘䜚⟬ฟ䛧䛯⣼✚ᦆയ್䜢DH 䛸⛠䛧䠈⟬ฟ⤖ᯝ䜢Table 1 䛻ྠ᫬䛻♧䛩䠊 ᮏಟṇ᪉ἲ䛻䛚䛡䜛⣼✚ᦆയ್ DH 䛿 1 䛻㏆䛔್䜢♧䛧䛶䛔䜛䠊䛧䛯䛜䛳䛶䠈⑂ປ㝈ᗘ௨ୗ䛾ヨ㦂ຊ᣺ᖜ䛻䜘䜛ᦆയ䛜ᑠ䛥䛔ሙྜ䛿䠈䝝䜲䝞䝑䝝䛾᪉ἲ䜢⪃៖䛧䛯ホ౯䜢⾜䛖䛣䛸䛷ẚ㍑ⓗ⢭ᗘ䛾㧗䛔⣼✚ᦆയホ౯䛜ྍ⬟䛸䛺䜛䛣䛸䛜䜟䛛䛳䛯䠊

Table 1 Results of cumulative fatigue damage
No.

nH/nL

I

200/6000

0.39II200/6000

III

Table 2 Results of cumulative fatigue damage

D

DH

No.

nH/nL

0.10

1.01

0.79

VI

200/1000

0.39

0.39

0.15

1.44

1.05

VII

200/1000

200/6000

0.39

0.15

2.08

1.51

VIII

IV

200/24000

0.39

0.10

1.81

0.95

IX

V

200/24000

0.39

0.10

2.21

1.15

'PH [kN] 'PL [kN]

'PH [kN] 'PL [kN]

D

DH

0.10

0.85

1.00

0.39

0.15

0.69

0.91

200/2000

0.39

0.10

0.75

1.00

200/2000

0.39

0.15

0.71

1.09

㻌 㻔㼎㻕㻌 䝁䞊䝔䞁䞉䝗䝷䞁䛾᪉ἲ䛻䜘䜛ಟṇ㻌 ᭱ᚋ䛻䠈nH/nL=200/1000䠈䛚䜘䜃 200/2000 䛾ヨ㦂⤖ᯝ䛻䛴䛔䛶䛿䠈ࢥ࣮ࢸ࣭ࣥࢻࣛ
ࣥࡢ᪉ἲࢆᥦ᱌ࡋࡓ㸬ࢥ࣮ࢸ࣭ࣥࢻࣛࣥࡢ᪉ἲ࡜ࡣ㢖⦾࡟ヨ㦂ຊ➼ࡀኚືࡍࡿᐇാⲴ㔜ࡢሙྜ㸪㧗ヨ㦂ຊ᣺ᖜࡢᏑᅾ࡟
ࡼࡾ⑂ປ㝈ᗘ㏆ഐࡢపヨ㦂ຊ᣺ᖜ࡟ࡼࡿ⑂ປᦆയࡀ኱ࡁࡃ࡞ࡿࡇ࡜ࢆ⪃៖ࡋࡓ᪉ἲ࡛࠶ࡿ㸬࡞࠾㸪ᮏヨ㦂య࡟࠾࠸࡚ࢥ
࣮ࢸ࣭ࣥࢻࣛࣥࡢ᪉ἲ࡛ࡢಟṇ᭤⥺ࡣ㸪ኚືⲴ㔜ୗ࡟ྵࡲࢀࡿ᭱኱ヨ㦂ຊ᣺ᖜ Pa,max=0.2kN ࡢⅬࢆᇶ‽࡜ࡋ㸪 nH/nL=200:1000㸪
200:2000 ࡢྛࣉࣟࢵࢺ࡟࠾ࡅࡿ㏆ఝ┤⥺࡟࡚సᡂࡋࡓ㸬ࢥ࣮ࢸ࣭ࣥࢻࣛࣥࡢ᪉ἲ࡟ࡼࡾಟṇࡋࡓ⑂ປᑑ࿨ NL,C-D࡟࡚⟬ฟࡋࡓ⣼✚ᦆയ್ࢆ DC-D ࡜⛠ࡋ㸪ಟṇ⤖ᯝࢆ Table 2 ࡟♧ࡍ㸬 ᮏಟṇ᪉ἲ࡟࠾ࡅࡿ⣼✚ᦆയ್ DC-D ࡣ 1 ࡟㏆࠸್ࢆ♧ࡋ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ࢥ࣮ࢸ࣭ࣥࢻࣛࣥࡢ᪉ἲ࡟࡚ᚓࡓᅇᖐᘧࡣᐇ㦂ⓗ࡟ồࡵࡓ⤖ᯝ࡛࠶ࡿࡓࡵ㸪௒ᚋ⾜࠺ணᐃ࡛࠶
ࡿࣛࣥࢲ࣒Ⲵ㔜ୗ࡟࠾ࡅࡿ⑂ປᦆയホ౯࡟࡚ṇᙜᛶࢆ᳨ウࡍࡿࡇ࡜࡜ࡍࡿ㸬䠐䠊⤖ㄽ㻌ᮏ◊✲䛷⏝䛔䛯 FSSW ヨ㦂య䛾ⷧᯈᮦ≉᭷䛾ኚᙧᣲື䛻䛴䛔䛶ᇶ♏ⓗ䝕䞊䝍䜢ྲྀᚓ䛧䠈ᮏヨ㦂య䛿㈇Ⲵヨ㦂ຊ䛜
0.4~0.5kN 䛷᥋ྜ㒊㏆ഐ䛾ረᛶኚᙧ䜢⏕䛨䜛䛣䛸䛜䜟䛛䛳䛯䠊䛭䛾⤖ᯝ䜢ኚື≉ᛶ䛻཯ᫎ䛧䛯ረᛶኚᙧ䜢క䛖஧ẁ⧞㏉䛧ኚືヨ㦂䛾ሙྜ䛿䠈㧗ヨ㦂ຊ⠊ᅖ䛻䜘䜚᥋ྜ㒊㏆ഐ䛾ረᛶኚᙧ䛜⏕䛨䛯ሙྜ䠈䛣䜜䛻క䛖ண䜂䛪䜏䛾ᙳ㡪䜢⪃៖䛧䛯ホ౯䜢⾜䛖䛣䛸䛻䜘䜚䠈ẚ㍑ⓗ⢭ᗘ䛾㧗䛔⣼✚ᦆയホ౯䛜ྍ⬟䛸䛺䜛䛣䛸䛜᫂䜙䛛䛻䛺䛳䛯䠊୍᪉䠈ረᛶኚᙧ䜢క䜟䛺䛔஧ẁ⧞㏉䛧ኚືヨ㦂䛾ሙྜ䛿䠈⑂ປ㝈ᗘ௨ୖ䛾ヨ㦂ຊ᣺ᖜ䛾㢖ᗘ䛻క䛔⑂ປ㝈ᗘ௨ୗ䛾ヨ㦂ຊ᣺ᖜ䛜ヨ㦂య䛻୚䛘䜛ᙳ㡪䜢෌⪃䛧䠈⑂ປᦆയホ౯䜢ಟṇ䛩䜛ᚲせ䛜䛒䜛䛣䛸䛜ุ᫂䛧䛯䠊㻌(ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝)

− 158 −

పⅣ⣲࣋࢖ࢼ࢖ࢺ㗰ࡢప㠌ᛶ࡟࠾ࡼࡰࡍᚤど⤌⧊ࡢᙳ㡪ி㒔኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᮦᩱᕤᏛᑓᨷ㎷ ఙὈ     
1. ⥴ゝ㕲㗰ᮦᩱ࡟࠾ࡅࡿ࣐ࣝࢸࣥࢧ࢖ࢺ࠾ࡼࡧ࣋࢖ࢼ࢖ࢺࡣ㧗ᙉᗘࢆ♧ࡍࡀ, ప࡛㠌ᛶࡀ኱ࡁࡃపୗࡋ, ⬤ᛶⓗ࡟◚ቯࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ. ࡇࢀࡽࡢ⤌⧊ࡣ, ࣛࢫ, ࣈࣟࢵࢡ, ࣃࢣࢵࢺ, ᪧ࣮࢜ࢫࢸࢼ࢖ࢺ⢏࡜࠸ࡗࡓ✀ࠎࡢ኱ࡁࡉࡢᚤど⤌⧊࡛ᵓᡂࡉࢀ࡚࠾ࡾ,ෆ㒊࡟⤖ᬗᏛⓗ࡟␗࡞ࡿᵝࠎ࡞ቃ⏺ࡀᏑᅾࡍࡿ. ᡃࠎࡣ, ࣛࢫ࣐ࣝࢸࣥࢧ࢖ࢺ㗰ࡢప࡟࠾ࡅࡿ⬤ᛶ◚ቯᣲືࢆㄪ࡭, ࣐࢖ࢡࣟࢡࣛࢵࢡࡢఏ᧛ࡣ␗࡞ࡿ Bain 㛵ಀࡢࣂࣜ࢔ࣥ
ࢺ㛫ࡢቃ⏺࡛೵Ṇࡍࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ. ࡑࡢࡓࡵ, ྠࡌ Bain 㛵ಀࡢࣂࣜ࢔ࣥࢺࡢ㞟ྜࡢ኱ࡁࡉ (Bain ࢧ࢖ࢬ) ࡀప⬤ᛶ◚ቯ࡟኱ࡁ࡞ᙳ㡪ࢆ࠾ࡼࡰࡍ࡜⪃࠼ࡽࢀࡿ 1). ࡲࡓ, ࣋࢖ࢼ࢖ࢺࡣኚែ

ᗘࡢపୗ࡟కࡗ࡚, Bain ࢧ࢖ࢬࡀῶᑡࡍࡿ࡜ሗ࿌ࡉࢀ࡚࠸ࡿ 2).

ࡑࡇ࡛ᮏ◊✲࡛ࡣ, ኚែᗘࢆኚ໬ࡉࡏࡿࡇ࡜࡟ࡼࡗ࡚, ␗࡞ࡿ Bain ࢧ࢖ࢬࢆ᭷ࡍࡿ࣋

࢖ࢼ࢖ࢺ⤌⧊ࢆస〇ࡋ, Bain ࢧ࢖ࢬࡀప

⬤ᛶ࡟࠾ࡼࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬
2. ᐇ㦂᪉ἲ
ᮏ◊✲࡛ࡣ, 2Mn-0.1C (wt%) 㗰ࢆヨᩱ࡜ࡋ࡚⏝࠸ࡓ. 1050 qC, 30 min ࡢ࣮࢜ࢫࢸࢼ
࢖ࢺ໬ฎ⌮ᚋ, 460 qC ࠾ࡼࡧ 500 qC ࡛ 1 min ࡢ➼ಖᣢࢆ⾜࠸, ࣋࢖ࢼ࢖ࢺ⤌⧊ࢆᚓࡓ.

⇕ฎ⌮ᚋࡢヨᩱ࠿ࡽ 1 mm × 1 mm × 20 mm ࡢࣀࢵࢳ௜ࡁヨ㦂∦ (ࣀࢵࢳ῝ࡉ: 0.2 mm,
ࣀࢵࢳ㛤ࡁゅᗘ: 30q, ࣀࢵࢳᗏ᭤⋡༙ᚄ: 0.08 mm) ࢆษࡾฟࡋ, -175 qC ~ ᐊ✀ࠎࡢᗘ࡛ィ⿦໬ᚤᑠࢩࣕࣝࣆ࣮⾪ᧁヨ㦂ࢆ⾜࠺ࡇ࡜࡟ࡼࡗ࡚, పࡲ࡛ࡢ࡟࠾ࡅࡿ⬤ᛶ◚ቯᣲືࢆホ౯ࡋࡓ. ⤌⧊ほᐹ࡟ࡣගᏛ㢧ᚤ㙾, SEM, SEM-EBSD ࢆ⏝࠸ࡓ.
3. ⤖ᯝཬࡧ⪃ᐹ
Figure 1 ࡟460 qC, 500 qC ࡛ࡢ➼ಖᣢ࡟ࡼࡾ⏕ᡂࡋࡓ࣋࢖ࢼ࢖ࢺ⤌⧊ࡢ EBSD⤖ᬗ᪉఩࣐ࢵࣉ࡜ྠ୍ࡢ Bain 㛵ಀࢆ᭷ࡍࡿࣂࣜ࢔ࣥࢺࢆྠࡌⰍ࡛♧ࡋࡓ Bain ࣐ࢵࣉࢆ♧ࡍ. ษ∦ἲࢆ⏝࠸࡚

ᐃࡋࡓ Bain ࢧ࢖ࢬࡣࡑࢀࡒࢀ 6.0 Pm, 16.8 Pm ࡛࠶ࡾ, Bainࢧ࢖ࢬࡀ␗࡞ࡿ࣋࢖ࢼ࢖ࢺ⤌⧊࡜࡞ࡗ࡚࠸ࡿ. 460 qC ࠾ࡼࡧ 500 qC ࡛⏕ᡂࡋࡓ࣋࢖ࢼ
࢖ࢺࡣ࡜ࡶ࡟Ⅳ໬≀ࡀࣛࢫෆ, ࣛࢫቃ⏺࡟ᯒฟࡋ࡚࠾ࡾ, ᖹᆒⅣ໬≀⢏ᚄࡣྠ⛬ᗘ࡛࠶
ࡗࡓ. ࡲࡓ, ࡇࢀࡽࡢ⤌⧊࡟ᑐࡋ࡚ᘬᙇヨ㦂ࢆ⾜ࡗࡓ࡜ࡇࢁ, 㝆అᛂຊ, ᘬᙇᙉࡉ࡞࡝
ࡢຊᏛ≉ᛶ࡟㢧ⴭ࡞ᕪ␗ࡣぢࡽࢀ࡞࠿ࡗࡓ. Figure 2 ࡟, ᚤᑠࢩࣕࣝࣆ࣮⾪ᧁヨ㦂࡟ࡼࡾᚓࡽࢀࡓ✀ࠎࡢᗘ࡛ࡢ྾཰࢚ࢿࣝࢠ࣮ࢆ♧ࡍ. 460 qC, 500 qC ⇕ฎ⌮࡛⏕ᡂࡋࡓ࣋࢖ࢼ࢖ࢺࡢᘏᛶ-⬤ᛶ㑄⛣ᗘࡣࡑࢀࡒࢀ-88 qC, -63 qC ࡛࠶ࡗࡓ. ࡇࡢ⤖ᯝ࠿ࡽ, Bainࢧ࢖ࢬࡢῶᑡ࡟క࠸, ᘏᛶ-⬤ᛶ㑄⛣ᗘࡣపୗࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ.   㻌− 159 −

ཧ⪃ᩥ⊩㻌
1) M. Tsuboi, A. Shibata, D. Terada, N. Tsuji, CAMP-ISIJ, 27 (2014) 441.
2) N. Takayama, G. Miyamoto, T. Furuhara, Acta Mater., 60 (2012) 2387.

Fig.1 EBSD orientation maps of (a) bainite formed at 460 qC, (c) bainite formed at 500
qC, and (b), (d) Bain maps corresponding to (a), (c), respectively. White and black lines
are low-angle (5 q < T < 15 q) and high-angle (T > 15 q) boundaries.

Fig.2 Absorbed energies obtained by micro Charpy impact tests at
various temperatures ranging from -175 qC to RT.

㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 160 −

ᦶ᧿ᨩᢾࣉࣟࢭࢫ࡟ࡼࡿ WC-CrC-Ni ⁐ᑕ⓶⭷ࡢᨵ㉁ᆅ᪉⊂❧⾜ᨻἲே኱㜰ᕷ❧ᕤᴗ◊✲ᡤຍᕤᢏ⾡◊✲㒊㛗ᒸ ஽㸯㸬┠ⓗ⁐ᑕฎ⌮࡟ࡼࡗ࡚ᙧᡂࡉࢀࡓ㉸◳ྜ㔠⓶⭷ࡣ◳ᗘࡀపࡃ㸪ᇶᮦ࡜ࡢᐦ╔ᛶࡶప࠸ࡀ㸪ᦶ᧿ᨩᢾࣉࣟࢭࢫ
㸦FSP㸧ࢆ᪋ࡍ࡜◳ᗘࡀ኱ᖜ࡟ྥୖࡍࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿ 1)㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪FSP ᮲௳࡟ࡼࡗ࡚ࡣ⓶⭷ෆ࡟ࢡࣛࢵࢡࡀ⏕ࡌࡿሙྜࡀ࠶ࡾ㸪ࢡࣛࢵࢡࢆྵࡲ࡞࠸㧗◳ᗘࡢ⓶⭷ࢆᚓࡿࡓࡵࡢ FSP ᮲௳࡟ࡘ࠸࡚ࡣ୙᫂
࡞Ⅼࡀከ࠸㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ㸪Ⲵ㔜᮲௳ࢆ✀ࠎኚ໬ࡉࡏ࡚㉸◳ྜ㔠⓶⭷࡟ FSP ࢆ⾜࠸㸪ࢡࣛࢵࢡⓎ⏕ࢆᢚไࡍࡿ࡜࡜ࡶ࡟㧗࠸◳ᗘࢆᚓࡿࡓࡵࡢ᭱㐺࡞ FSP ᮲௳ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬㸰㸬◊✲᪉ἲ
⁐ᑕฎ⌮࡟ࡣ㸪WC-20mass%CrC-7mass%Ni 㐀⢏⢊ᮎ㸦ᖹᆒ⢏ᚄ㸸40 m㸧ࢆ⏝࠸ࡓ㸬㧗㏿ࣇ࣮࣒ࣞ⁐ᑕ⿦⨨ࢆ⏝࠸࡚㸪SKD61 ᯈᮦୖ࡟⁐ᑕฎ⌮ࢆ᪋ࡋࡓ㸬ᙧᡂࡉࢀࡓ㉸◳ྜ㔠⓶⭷ࡢཌࡉࡣ⣙ 300 m ࡛࠶ࡗࡓ㸬ᚓࡽࢀࡓ㉸◳ྜ㔠⓶⭷ࢆ FSP ࡟ࡼࡾᨵ㉁ࡋࡓ㸬FSP ࡟ࡣ㸪↝⤖㉸◳ྜ㔠㸦WC-Co㸧〇࡛ࣉ࣮ࣟࣈࡢ↓࠸෇ᰕ≧ࢶ࣮ࣝ㸦┤ᚄ 12 mm㸧ࢆ⏝࠸ࡓ㸬ࢶ࣮ࣝᅇ㌿ᩘࡣ 600 rpm, ⛣ື㏿ᗘࡣ 50 mm/min㸪๓㐍ゅࡣ 3r࡜ࡋࡓ㸬Ⲵ㔜ࡣ 4.9 kN ࠿ࡽ 19.6 kN ࡜ኚ໬ࡉࡏࡓ㸬ᚓࡽࢀࡓ㉸◳ྜ㔠⓶⭷࠾ࡼࡧ SKD61 ᇶᮦ࡟ࡘ࠸࡚᩿㠃⤌⧊ほᐹ࠾ࡼࡧ◳ࡉศᕸᐃࢆ⾜ࡗࡓ㸬㉸◳ྜ㔠⓶⭷࠾ࡼࡧᇶᮦࡢ⤌⧊ࡣ㸪ගᏛ㢧ᚤ㙾࡜㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾ࢆ⏝

࠸ࡓ㸬

㸱㸬⤖ᯝ
FSP ᚋࡢ㉸◳ྜ㔠⓶⭷ࡢ⾲㠃ほᐹ⤖ᯝࢆᅗ 1 ࡟♧ࡍ㸬4.9 kN ࡢⲴ㔜᮲௳࡛ࡣ㸪ᨩᢾ㒊ࡢ⾲㠃඲ᇦ࡟ࢡࣛࢵ
ࢡ࡜࣏࢔ࡀほᐹࡉࢀࡓࡀ㸪9.8 kN ࠾ࡼࡧ 14.7 kN ࡢⲴ㔜᮲௳࡛ࡣ㸪ࡇࢀࡽࡢḞ㝗ࡣㄆࡵࡽࢀࡎ㸪Ⰻዲ࡞ᨵ㉁㡿ᇦࡀᚓࡽࢀࡓ㸬Ⲵ㔜ࢆ 19.6 kN ࡜ࡍࡿ࡜㸪๓㐍ഃࡢᨩᢾ㒊࡟࠾࠸࡚ᮍฎ⌮㡿ᇦ࡟ࡲ࡛ᣑࡀࡿࢡࣛࢵࢡࡀほᐹࡉࢀࡓ㸬FSP ᚋࡢ᩿㠃࣐ࢡࣟほᐹ⤖ᯝࢆᅗ 2 ࡟♧ࡍ㸬ᅗ 3 ࡟㉸◳ྜ㔠⓶⭷┤ୗࡢᇶᮦ SKD61 ࡢ᩿㠃⤌⧊ほᐹ⤖ᯝࢆ♧ࡍ㸬࠸ࡎࢀࡢⲴ㔜࡟࠾࠸࡚ࡶ㉸◳ྜ㔠⓶⭷࡜ᇶᮦࡀΰࡊࡾྜ࠺ࡇ࡜ࡣ࡞࠿ࡗࡓ㸬ࡇࢀࡣ㸪ᗏ㠃ࡀࣇࣛࢵࢺࡢࢶ࣮ࣝࢆ⏝࠸ࡓࡇ࡜࡛㸪FSP ᫬࡟ࡣỈᖹ᪉ྥ࡟ረᛶὶືࡀ⏕ࡌࡓࡓࡵ࡜⪃࠼ࡽࢀࡿ㸬Ⲵ㔜 4.9 kN ࡛ࡣ㸪⁐ᑕࡋࡓࡲࡲࡢᇶᮦ࡜ྠᵝࡢ↝㕌⤌⧊࡛࠶ࡗࡓ㸬ࡑࢀ࡟ᑐࡋ㸪Ⲵ㔜 9.8 kN, 14.7 kN ࡛ࡣ㸪࣐ࣝࢸࣥࢧ࢖ࢺ┦ࡀほᐹࡉࢀࡓ㸬FSP ᫬ࡢධ⇕࡟ࡼࡗ࡚ࣇ࢙ࣛ࢖ࢺࡀ࣮࢜ࢫࢸࢼ࢖ࢺ໬ࡉࢀ㸪෭༷㐣⛬࡛࣐ࣝࢸࣥࢧ࢖ࢺኚ
ែࡀ⏕ࡌࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬Ⲵ㔜 19.6 kN ࡛ࡣ㸪ረᛶὶືࡢ⑞㊧ࡀㄆࡵࡽࢀ㸪FSP ᫬࡟㉸◳ྜ㔠⓶⭷࡜ඹ
࡟ᇶᮦ SKD61 ࡶᨩᢾࡉࢀࡓࡇ࡜ࡀ❚࠼ࡿ㸬ࡲࡓ㸪ᅗ 2(d)࡟♧ࡍࡼ࠺࡟㸪๓㐍ഃ࡛ࡣᇶᮦࡀ኱ࡁࡃረᛶኚᙧ
ࡋ࡚࠾ࡾ㸪ᅗ 1(d)࡛ほᐹࡉࢀࡓ๓㐍ഃࡢࢡࣛࢵࢡࡣ㸪ࡇࡢረᛶኚᙧ࡟ࡼࡗ࡚⏕ࡌࡓࡶࡢ࡜⪃࠼ࡽࢀࡓ㸬ࡇࢀ࡟ᑐࡋ࡚㸪4.9 kN ࡢⲴ㔜᮲௳࡛ࡣ㸪FSP ࡟ࡼࡗ࡚㉸◳ྜ㔠⓶⭷࡜ᇶᮦ SKD61 ࡀຍ⇕ࡉࢀ㸪୧⪅ࡢ⥺⭾ᙇಀᩘ㸦6.4×10-6 /K ࡜ 12.6×10-6 /K㸧ࡢ㐪࠸࡟ࡼࡾ㸪FSP ┤ᚋࡢ෭༷㐣⛬࡛⇕ᛂຊࡀⓎ⏕ࡋ㸪ࢡࣛࢵࢡࡀ⏕ࡌࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬୍᪉㸪Ⲵ㔜᮲௳ 9.8 kN ࠾ࡼࡧ 14.7 kN ࡛ࡣ㸪 FSP ᚋࡢᨩᢾ㒊⾲㠃࡛ࢡࣛࢵࢡࡣほᐹࡉ− 161 −

ࢀ࡞࠿ࡗࡓ㸬ࡇࢀࡣ㸪ᇶᮦ SKD61 ࡀ FSP ┤ᚋࡢ෭༷㐣⛬࡛㸪࣐ࣝࢸࣥࢧ࢖ࢺኚែࢆ⏕ࡌࡿࡇ࡜࡛య✚⭾ᙇࡋ㸪㉸◳ྜ㔠⓶⭷ࡢ཰⦰㔞࡜ࡢᕪࡀᑠࡉࡃ࡞ࡗࡓࡓࡵ࡜⪃࠼ࡽࢀࡿ㸬

ᅗ1

FSP ᚋࡢ㉸◳ྜ㔠⓶⭷⾲㠃㸬

ᅗ 2 FSP ᚋࡢ㉸◳ྜ㔠⓶⭷࡜ᇶᮦࡢ᩿㠃㸬
ᅗ3

FSP ᚋࡢ㉸◳ྜ㔠⓶⭷┤ୗࡢᇶᮦ᩿㠃㸬㸲㸬⤖ㄽ⁐ᑕฎ⌮࡟ࡼࡾᙧᡂࡋࡓ WC-CrC-Ni ㉸◳ྜ㔠⓶⭷࡟ FSP ࢆ᪋ࡋࡓ㸬ᚓࡽࢀࡓ⤖ᯝࢆ௨ୗ࡟ࡲ࡜ࡵࡿ㸬(1) Ⲵ㔜 19.6 kN ࡢ᮲௳࡛ࡣ㸪ᇶᮦ SKD61 ࡀ FSP ᫬࡟኱ࡁࡃረᛶኚᙧࡍࡿࡇ࡜࡛㸪㉸◳ྜ㔠⓶⭷ࡢ๓㐍ഃ࡟ࢡࣛࢵࢡࡀ⏕ࡌࡓ㸬(2) Ⲵ㔜 4.9 kN ࡢ᮲௳࡛ࡣ㸪㉸◳ྜ㔠⓶⭷ࡢ⾲㠃඲㠃࡟ࢡࣛࢵࢡࡀ⏕ࡌࡓࡀ㸪Ⲵ㔜ࢆ 9.8 kN ࡲࡓࡣ 14.7kN࡜ࡍࡿࡇ࡜࡛㸪ࢡࣛࢵࢡࡢⓎ⏕ࡣᢚไࡉࢀࡓ㸬FSP ࡟ࡼࡾ㉸◳ྜ㔠⓶⭷ෆࡢ⦓ᐦ໬ࡀ㐍⾜ࡍࡿ࡜࡜ࡶ࡟㸪ᇶᮦ SKD61 ࡟࣐ࣝࢸࣥࢧ࢖ࢺኚែࡀ⏕ࡌࡿࡇ࡜࡛㸪FSP ┤ᚋࡢ෭༷㐣⛬࡟࠾࠸࡚ᇶᮦ࡜㉸◳ྜ㔠⓶⭷ࡢ཰⦰㔞ࡢᕪࡀᑠࡉࡃ࡞ࡗࡓࡓࡵ࡜⪃࠼ࡽࢀࡿ㸬㸳㸬ཧ⪃ᩥ⊩
1) Y. Morisada, H. Fujii, T. Mizuno, G. Abe, T. Nagaoka, M. Fukusumi: “Modification of Thermally
Sprayed Cemented Carbide Layer by Friction Stir Processing”, Surf. Coat. Tech., 204 (2010) 2459–2464.
㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 162 −

␗✀࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢᦶ᧿ᨩᢾ᥋ྜ≉ᛶ㬆㛛ᩍ⫱኱Ꮫ኱Ꮫ㝔Ꮫᰯᩍ⫱◊✲⛉ ⏿୰ఙኵ㸯㸬ࡣࡌࡵ࡟
ᦶ᧿ᨩᢾ᥋ྜ㸯㸧ࡣ㸪ୡ⏺ྛᅜ࡛◊✲ࡀࡍࡍࡵࡽࢀ㸪ከࡃࡢศ㔝࡛ᐇ⏝ⓗ᥋ྜἲ࡜ࡋ࡚ά⏝ࡉࢀࡘࡘ࠶ࡿ㸬ᦶ᧿ᨩᢾ᥋
ྜࡣ㸪⁐⼥⁐᥋࡛ࡣ࡞ࡃ㸪ᅛ┦≧ែ࡛᥋ྜࡍࡿࡓࡵ⁐⼥⁐᥋࡟ࡣ࡞࠸ከࡃࡢ≉ᚩࢆᣢࡗ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ⁐⼥⁐᥋ࡀᴟࡵ࡚ᅔ㞴࡛࠶ࡿ࢔࣑ࣝࢽ࣒࢘ྜ㔠  ࡟ᦶ᧿ᨩᢾ᥋ྜࢆ⾜࠸ࠊ᥋ྜ≉ᛶ࡟ࡘ࠸᳨࡚ウࡋࡓ㸬ࡉࡽ࡟㸪࢔࣑ࣝࢽ࣒࢘ྜ㔠  ࡜  ࢆ⤌ࡳྜࢃࡏࡓ␗✀࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢ᥋ྜ≉ᛶ࡟ࡘ࠸࡚ࡶ᳨ウࡋࡓࠋ㸰㸬ᐇ㦂᪉ἲ
ᐇ㦂࡟౑⏝ࡋࡓᮦᩱࡣ㸪ᯈཌ PP ࡢ࢔࣑ࣝࢽ࣒࢘ྜ㔠 7࠾ࡼࡧ 7 ࡛࠶ࡿࠋ᥋ྜ⏝ヨ㦂∦ࡣࠊ⣲ᯈ࠿ࡽ PP ࡢ▷෉≧࡟ษࡾฟࡋࡓࠋ᥋ྜࡣࠊヨ㦂∦㛗㎶ࢆ✺ࡁྜࢃࡏ࡚㓄⨨ࡋࠊ἞ල࡛ᅛᐃࡋ࡚⾜ࡗࡓࠋ᥋ྜ᮲௳ࡣࠊࢶ࣮ࣝᅇ㌿ᩘ㹼USPࠊ᥋ྜ㏿ᗘ 㹼PPPLQ ࡛࠶ࡿ㸬ࢶ࣮ࣝࡣ཯᫬ィ᪉ྥ࡟ᅇ㌿ࡋ࡞ࡀࡽ㸪ᕥ࠿ࡽྑྥࡁ࡟㏦ࡽࢀࡿ㸬᥋ྜ᪉ྥ࡜ᅇ㌿᪉ྥࡀ୍⮴ࡍࡿୗഃࢆ๓㐍ഃ㸦$6㸧㸪཯ᑐ࡟࡞ࡿୖഃࢆᚋ㏥ഃ㸦56㸧࡜࿧ࡪ㸬᥋ྜ࡟ࡣ㸪኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤࡢᦶ᧿ᨩᢾ᥋ྜᶵࢆ౑⏝ࡋࡓ㸬᥋ྜᙉᗘࡣ᥋ྜᚋࡢ⥅ᡭ࠿ࡽ㸪࣡࢖࣮ࣖᨺ㟁ຍᕤ࡟ࡼࡾᘬᙇヨ㦂∦ࢆษࡾฟࡋ࡚㸪ᘬᙇヨ㦂ࢆᐇ᪋ࡍࡿࡇ࡜࡟ࡼࡾホ౯ࡋࡓ㸬㸱㸬᥋ྜ㒊እほほᐹᅗ㸰ࡣ㸪$ ࠾ࡼࡧ $ ࡢ )6: ࢆ⾜ࡗࡓ᥋ྜ㒊⾲㠃ࢆ♧ࡍ㸬ᅗ㸯࡟♧ࡍ $ ࡢሙྜ࡟ࡣ㸪᥋ྜ㏿ᗘ࣭ᅗ  ࠾ࡼࡧᅗ
ࢶ࣮ࣝᅇ㌿ᩘ࡜ࡶ࡟ᗈ⠊࡞ຍᕤ᮲௳࡟࠾࠸࡚Ⰻዲ࡞᥋ྜ㠃ࡀᚓࡽࢀࡓ㸬୍᪉㸪ᅗ㸰࡟♧ࡍ $ ࡢሙྜ࡟ࡣ㸪᥋ྜ㏿ᗘࡀపࡃ㸪ᅇ㌿ᩘࡀ 㹼USP ࡟࠾࠸࡚ࡣ㸪Ⰻዲ࡞᥋ྜ㠃ࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓࡀ㸪᥋ྜ㏿ᗘ࠶ࡿ࠸ࡣᅇ㌿ᩘࡀቑຍࡍࡿ
࡜ࠊ⁁≧Ḟ㝗ࡸࢺࣥࢿࣝ≧Ḟ㝗ࡀ $6 ഃ࡟⏕ࡌࡿࡓࡵ㸪Ⰻዲ࡞᥋ྜ᮲௳ࡢ⠊ᅖࡣ⊃࠿ࡗࡓ㸬ᅗ㸱࠾ࡼࡧᅗ
ᅗ㸲ࡣ㸪$ ࡜ $ ࡢ␗✀࢔࣑ࣝࢽ࣒࢘᥋ྜࡢ౛࡛࠶ࡿ㸬ᅗ㸱ࡣ $6 ഃ࡟ $㸪56 ഃ࡟ $ ࢆ㓄⨨ࡋࡓሙྜ࡛࠶ࡿ㸬Q USP9 PPVࡢሙྜ࡟ࡣⰋዲ࡞᥋ྜ㠃ࡀᚓࡽࢀࡓࡀ㸪Q USP9 PPVࡢሙྜ࡟ࡣ⁁≧Ḟ㝗ࢆ⏕ࡌࡓ㸬ᅗ㸲࡟♧ࡍ $6 ഃ࡟ $㸪56 ഃ࡟ $ ࢆ㓄⨨ࡋࡓሙྜ㸪Q USP9 PPV࠾ࡼࡧ Q USP
9 PPV࡜ࡶ࡟Ⰻዲ࡞᥋ྜ㠃ࡀᚓࡽࢀࡓ㸬᥋ྜ⾲㠃ࡢほᐹ⤖ᯝ࠿ࡽ㸪$6 ഃ࡟ $㸪56 ഃ࡟ $ ࢆ㓄⨨ࡍࡿ࡜Ⰻዲ
࡞᥋ྜࡀᗈ⠊࡞᥋ྜ᮲௳࡛ᚓࡽࢀࡿ࡜⪃࠼ࡽࢀࡿ㸬 D USPPPPLQ E USPPPPLQD USPPPPLQ 

E USPPPPLQᅗ㸯 ᥋ྜ⾲㠃ほᐹ $7ᅗ㸰 ᥋ྜ⾲㠃ほᐹ $7  D USPPPPLQ  E USPPPPLQD USPPPPLQE USPPPPLQᅗ㸱 ᥋ྜ⾲㠃ほᐹ $656        ᅗ㸲 ᥋ྜ⾲㠃ほᐹ $656
㸲㸬ᘬᙇヨ㦂ᅗ㸴ࡣ㸪᥋ྜ᮲௳ࡀ᥋ྜᙉᗘ࡟ཬࡰࡍᙳ㡪ࢆ♧ࡍ㸬ᅗ㸳ࡣྠ✀ᮦᩱࢆ᥋ྜࡋࡓሙྜ࡛࠶ࡿࠋᅗ㸳 D ࡣࠊ$ᅗ㸳࠾ࡼࡧᅗ
ᮦࡢ࡜ࡁ࡛࠶ࡿࠋ᥋ྜ㠃ほᐹ࠿ࡽணࡉࢀࡿࡼ࠺࡟ᗈ⠊࡞ຍᕤ᮲௳࡛⣙ 03D ࡢ᥋ྜᙉᗘࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓࠋ୍᪉ࠊ

ᅗ㸳 E ࡟♧ࡍ $ ᮦࡢ᫬࡟ࡣࠊࢶ࣮ࣝᅇ㌿ᩘ 㹼USPࠊ᥋ྜ㏿ᗘ 㹼PPPLQ ࡢ⠊ᅖ࡛ࡢࡳ⣙ 03D ࡢ᥋ྜᙉᗘࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓࠋ$ ᮦࡢ᥋ྜྍ⬟㡿ᇦࡣ $ ࡟ẚ࡭ᴟࡵ࡚⠊ᅖࡣ⊃࠸ࡇ࡜ࡀศ࠿ࡿ

− 163 −

ᅗ㸴ࡣࠊ␗✀࢔࣑ࣝࢽ࣒࢘ࢆ᥋ྜࡋࡓሙྜ࡛࠶ࡿࠋᅗ㸴 D ࡣ $6 ഃ࡟ $ࠊ56 ഃ࡟ $ ࢆ㓄⨨ࡋࡓሙྜ࡛࠶ࡿࠋ᭷
ຠ࡞᥋ྜᙉᗘࡣࠊࢶ࣮ࣝᅇ㌿ᩘ 㹼USPࠊ᥋ྜ㏿ᗘ PPPLQ ࡢ⠊ᅖ࡛ࡢࡳᚓࡿࡇ࡜ࡀ࡛ࡁࡓࠋᅗ㸴 E ࡣ $6 ഃ࡟$ࠊ56 ഃ࡟ $ ࢆ㓄⨨ࡋࡓሙྜ࡛࠶ࡿࠋࢶ࣮ࣝᅇ㌿ᩘ 㹼USPࠊ᥋ྜ㏿ᗘ 㹼PPPLQ ࡢᗈ⠊࡞ຍᕤ᮲௳࡛⣙ 03D ࡢ᥋ྜᙉᗘࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓࠋࡇࢀࡽ᥋ྜᙉᗘࡢ⤖ᯝ࠿ࡽࠊ␗✀ᮦᩱࡢᦶ᧿ᨩᢾ᥋ྜ࡟࠾࠸࡚ࡣࠊ56 ഃ࡟ረᛶὶືᛶࡢⰋ࠸ $ ࢆ㓄⨨ࡍࡿ᪉ࡀⰋዲ࡞⤖ᯝࢆᚓࡽࢀࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬୍᪉ࠊᅗ㸳 D ࡜ᅗ㸴 E ࢆẚ㍑ࡍࡿ࡜ࠊ᥋ྜᙉᗘ≉ᛶࡀᴟࡵ࡚㢮ఝࡋ࡚࠸ࡿ㸬ࡇࢀࡣࠊ$ ࡜ $ ࡢᦶ᧿ᨩᢾ᥋ྜ
࡟࠾࠸࡚ࠊ᥋ྜᙉᗘࡀ $ ࡢ᥋ྜᙉᗘ࡟౫Ꮡࡋ࡚࠸ࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿ㸬ࡲࡓࠊᮏᐇ㦂࡛ᚓࡽࢀࡓ⥅ᡭࡢ᥋ྜᙉᗘࡣࠊ
࠸ࡎࢀࡶẕᮦࡢᘬᙇᙉࡉࡢ 㹼㸣⛬ᗘ࡛࠶ࡿࠋࡇࢀࡣࠊᮏᐇ㦂࡛౑⏝ࡋࡓᮦᩱࡀ࠸ࡎࢀࡶᯒฟᙉ໬ᆺྜ㔠࡛࠶ࡾࠊ⁐య໬ฎ⌮ᚋࡢ᫬ຠ◳໬࡟ࡼࡾᙉ໬ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊᦶ᧿ᨩᢾ᥋ྜ࡟ࡼࡾࢶ࣮ࣝ࠿ࡽࡢධ⇕࣭ຍ⇕࡟ࡼࡾࠊᯒฟࡉࢀ࡚
࠸ࡓྜ㔠ඖ⣲ࡀ↝㕌ࡉࢀᙉᗘࡀపୗࡋࡓࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ


 

 
D $                  E $

ᅗ㸳 ᥋ྜ᮲௳ࡀ᥋ྜᙉᗘ࡟ཬࡰࡍᙳ㡪㸦ྠ✀ᮦᩱ㸧


 

 



D $6ࠊ56 ࢆ㓄⨨           E $656 ࢆ㓄⨨ᅗ㸴 ᮦᩱ㓄⨨ࡀ᥋ྜᙉᗘ࡟ཬࡰࡍᙳ㡪㸦␗✀ᮦᩱ㸧㸳㸬⤖ ㄽ
࢔࣑ࣝࢽ࣒࢘ྜ㔠 7 ࠾ࡼࡧ 7 ࡢᦶ᧿ᨩᢾ᥋ྜࢆ⾜࠸௨ୗࡢ▱ぢࢆᚓࡓࠋ
㸯㸬$ ࡢሙྜ㸪ᗈ⠊࡞᥋ྜ᮲௳࡛Ⰻዲ࡞᥋ྜ⤖ᯝࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓࡀ㸪$ ࡢሙྜ࡟ࡣⰋዲ࡞᥋ྜᙉᗘࡢᚓࡽ
ࢀࡿ⠊ᅖࡣ⊃࠸ࠋ㸰㸬␗✀࢔࣑ࣝࢽ࣒࢘ᮦᩱࡢ᥋ྜ࡟࠾࠸࡚ࠊ$ ᮦࢆ $6 ഃ࡟ $ ࢆ 56 ഃ࡟㓄⨨ࡋࡓሙྜ࡟ࡣ㸪ᗈ⠊࡞᥋ྜ᮲௳࡛
Ⰻዲ࡞᥋ྜᙉᗘࡀᚓࡽࢀࡓࠋ
㸱㸬␗✀ᮦᩱࡢ᥋ྜ࡟࠾࠸࡚ࠊ᥋ྜᙉᗘࡣᙉᗘࡢప࠸ഃࡢᮦᩱ࡟౫Ꮡࡍࡿࠋ᥋ྜᙉᗘࡣࠊ࠸ࡎࢀࡢሙྜࡶࠊẕᮦࡢᘬᙇᙉࡉࡢ⣙ 㸣࡛࠶ࡗࡓࠋ
ཧ⪃ᩥ⊩㸯㸧♫ᅋἲே⁐᥋Ꮫ఍㸸ᦶ᧿ᨩᢾ᥋ྜ㸪⏘ሗฟ∧㸪  㸬㸦ඹྠ◊✲ศ㔝 ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 164 −

ᦶ᧿⢊ᮎ↝⤖ἲ࡟ࡼࡾస〇ࡋࡓࢲ࢖࢝ࢫࢺ⏝ྜ㔠 ADC6 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢᅽ⦰≉ᛶ⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛▼ཎ ⥤஀㸪༙㇂ ⚞ᙪ1㸬┠ⓗ࣏࣮ࣛࢫ Al ࡣከẼᏍ࡞ᵓ㐀ࢆᣢࡘ⣲ᮦ࡛࠶ࡿ㸬ࡑࡢࡓࡵ㸪⦓ᐦᮦ࡛ࡢ㝈⏺ࢆ㉸࠼ࡓ㍍㔞໬ࡀྍ⬟࡜࡞ࡿ㸬ࡉࡽ࡟࣏࣮ࣛࢫ໬ࡍࡿࡇ࡜࡟ࡼࡾ㸪ᚑ᮶ࡢ⦓ᐦᮦ࡟ࡣ࡞࠸⾪ᧁ྾཰ᛶࡸ྾㡢ᛶ㸪᩿⇕ᛶ࡜࠸ࡗࡓᶵ⬟ࢆᣢࡓࡏ㸪㧗ᶵ⬟໬ࢆᐇ⌧ࡍࡿ㸬ࡇࡢࡼ࠺࡞ᶵ⬟ࢆ⏕࠿ࡋ㸪⮬ື㌴⏝㒊ᮦ࡞࡝࡜ࡋ࡚ࡢ฼⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬⌧ᅾ㸪࣏࣮ࣛࢫ Al ࡢస〇᪉ἲࡣᵝࠎᥦ᱌ࡉࢀ࡚࠾ࡾ㸪ࡑࡢ୰ࡢ୍ࡘ࡟ࢫ࣮࣌ࢧ࣮ἲࡀ࠶ࡿ㸬ࡇࡢ᪉ἲࡣ㔠ᒓ⢊ᮎ࡜ࢫ࣮࣌ࢧ࣮⢊ᮎࡢΰྜ⢊ᮎࢆཎᩱ࡜ࡋ࡚⏝࠸ࡿ㸬ΰྜ⢊ᮎࢆᆺ࡟ධࢀ㸪ຍ⇕㸪ຍᅽࡍࡿࡇ࡜࡟ࡼࡾ↝⤖ࢆ⾜࠺㸬↝⤖᫬ࡶࡋࡃࡣ↝⤖ᚋ࡟ࢫ࣮࣌ࢧ࣮ࡣྲྀࡾ㝖࠿ࢀ㸪࣏࣮ࣛࢫ㔠ᒓࡀᚓࡽࢀࡿ㸬ࡇࡢస〇ἲࡣ㸪ࢫ࣮࣌ࢧ࣮ࡢᙧ≧ࡀẼᏍᙧ≧࡜ࡋ࡚㌿෗ࡉࢀࡿࡓࡵ㸪ẼᏍᙧែࡢไᚚࡀྍ⬟࡛࠶ࡿ࡜࠸࠺㛗ᡤࢆᣢࡘࡀ㸪ຍ⇕᫬࡟እ㒊⇕※ࡀᚲせ࡛࠶ࡿࡇ࡜ࡸస〇᫬㛫ࡀ㛗࠸ࡇ࡜ࡀ▷ᡤ࡜ࡋ࡚ᣲࡆࡽࢀࡿ㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣࢫ࣮࣌ࢧ࣮ἲࡢ୍✀࡛࠶ࡿᦶ᧿⢊ᮎ↝⤖ἲ࡟ࡼࡿ࣏࣮ࣛࢫ Al ࡢస〇ࢆヨࡳࡓ㸬ᦶ᧿⢊ᮎ↝⤖ἲࡣཎᩱ࡟ Al ⢊ᮎ࡜ࢫ࣮࣌ࢧ࣮⢊ᮎ㸦NaCl ⢊ᮎ㸧ࡢΰྜ⢊ᮎࢆ⏝࠸ࡿ㸬ࡲࡎ㸪ΰྜ⢊ᮎࢆ㔠ᆺ࡟ධࢀ㸪㧗㏿ᅇ㌿ࡍࡿࢶ࣮ࣝࢆᢲࡋᙜ࡚ࡿ㸬ΰྜ⢊ᮎࡣᢲ㎸ࡳ᫬࡟Ⓨ⏕ࡍࡿᦶ᧿⇕࡜ᢲ㎸ࡳⲴ㔜࡟ࡼࡾ↝⤖ࡍࡿ㸬↝⤖ᚋ㸪 NaCl ࢆỈὙ࡟ࡼࡾ㝖ཤࢆ⾜࠺ࡇ࡜࡛㸪࣏࣮ࣛࢫ Al ࢆᚓࡿࡇ࡜ࡀฟ᮶ࡿ㸬ࡇࡢ᪉ἲࡣ๓㏙ࡢࢫ࣮࣌ࢧ࣮ἲ࡜ྠᵝ࡟ẼᏍᙧែࡢไᚚࡀྍ⬟࡛࠶ࡿ࡜࡜ࡶ࡟㸪↝⤖᫬࡜ࢫ࣮࣌ࢧ࣮㝖ཤ᫬࡟እ㒊⇕※ࡀ୙せ࡛࠶ࡾ㸪స〇᫬㛫ࡶ▷࠸ࡇ࡜࠿ࡽ┬࢚ࢿࣝࢠ࣮໬㸪㧗⏕⏘ᛶࡀᮇᚅࡉࢀࡿ㸬ࡇࡢస〇ἲ࡛ࡣ㸪⣧ Al ࡛ࡢస〇ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗ࡚࠸ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣཎᩱ࡟⪏㣗ᛶࡀ㧗ࡃ㸪⣧ Al ࡜ẚ㍑ࡋ࡚㧗ᙉᗘ࡛࠶ࡿࢲ࢖࢝ࢫࢺ
⏝ Al-Mg ⣔ Al ྜ㔠 ADC6 ࢆ⏝࠸࡚స〇ࢆ⾜࠺ࡇ࡜࡛࣏࣮ࣛࢫ Al ࡢ㧗ᙉᗘ໬ࢆ┠ᣦࡋࡓ㸬ຍ࠼࡚㸪ADC6 ࣏࣮ࣛࢫ Al ࡜ࡢẚ㍑ࢆ⾜࠺ࡓࡵ㸪⣧ Al㸪࠾ࡼࡧࢲ࢖࢝ࢫࢺ⏝ Al-Si-Cu ⣔ Al ྜ㔠 ADC12 ⢊ᮎ࡟ࡼࡿస〇ࢆ⾜ࡗࡓ㸬స〇ࡋࡓ 3 ✀ࡢ࣏࣮ࣛࢫ Al ࡣᅽ⦰ヨ㦂ࢆ⾜࠸㸪ᅽ⦰≉ᛶࡢẚ㍑ࢆヨࡳࡓ㸬
2㸬◊✲᪉ἲ
ᅗ 1 ࡟ᐇ㦂ᡭ㡰ࡢᴫ␎ᅗࢆ♧ࡍ㸬ཎᩱ⢊ᮎ࡟ࡣ ADC6 ⢊ᮎ㸦26 ȣm ௨ୗ㸧࡜ NaCl ⢊ᮎ㸦425-500 ȣm㸧ࢆ⏝࠸ࡓ㸬ADC6 ⢊ᮎࡣ࢖ࣥࢦࢵࢺ࠿ࡽ๐ࡾฟࡋ㸪ᩚ⢏ࡋࡓࡶࡢࢆ౑⏝ࡋ࡚࠸ࡿ㸬2 ࡘࡢ⢊ᮎࡣẼᏍ⋡ࡀ 70 %࡜࡞ࡿࡼ࠺࡟ΰྜࡋࡓ㸬ࡇࡢ⢊ᮎࢆȍ13 mm ࡢ✰ࢆ㛤ࡅࡓཌࡉ 10 mm ࡢ↓㓟⣲㖡ࡢᆺ࡟ධࢀ㸦ᅗ 1㸦a㸧㸧㸪ඛ➃㒊ࡀᖹᆠ࡞㉸◳ྜ㔠㸦WC㸧ࢶ࣮ࣝࢆ㧗㏿ᅇ㌿ࡉࡏ࡞ࡀࡽ㸪1 mm / min ࡛ 3 mm ᢲ㎸ࢇࡔ㸦ᅗ 1㸦b㸧㸧㸬⢊ᮎࡣࢶ࣮ࣝᢲ㎸ࡳ᫬ࡢⲴ㔜࠾ࡼࡧᦶ᧿⇕࡟ࡼࡗ࡚㸪ᅽ⢊㸪↝⤖ࡀ⾜ࢃࢀࡿ㸬↝⤖ᚋࡣᶵᲔຍᕤ࡟ࡼࡾ࣏࣮

− 165 −

ࣛࢫ Al 㒊ࢆษࡾฟࡋ㸦ᅗ 1㸦c㸧㸧㸪ỈὙࡍࡿࡇ࡜࡛ NaCl ࡢ㝖ཤࢆ⾜ࡗࡓ㸦ᅗ 1㸦d㸧㸧㸬௨ୖࡢᕤ⛬࡟ࡼࡾ㸪࣏࣮ࣛࢫ Al ࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡿ㸦ᅗ 1㸦e㸧㸧㸬ࡲࡓ㸪ྠᵝࡢᕤ⛬࡛⢊ᮎ࡟⣧ Al㸦20 ȣm㸧࡜ ADC12㸦26-38 ȣm㸧ࢆ⏝࠸࡚࣏࣮ࣛࢫ Al ࡢస〇ࢆ⾜ࡗࡓ㸬ࡇࡇ࡛⏝࠸ࡓ ADC12 ⢊ᮎࡣ〇㐀᫬࡟⏕ࡌࡓࣂࣜࡼࡾస〇ࡋ࡚࠸ࡿ㸬ྛ⢊ᮎ࡛࣏࣮ࣛࢫ Al ࡣ 3 ಶࡎࡘస〇ࡋ㸪ᚓࡽࢀࡓ࣏࣮ࣛࢫ Al ࡣ X ⥺ CT ࡟ࡼࡿ㠀◚ቯほᐹ࠾ࡼࡧ㸪ᅽ⦰ヨ㦂ࢆࡑࢀࡒࢀ 3 ヨ⾜⾜࠸㸪ẼᏍᙧែ㸪ᅽ⦰≉ᛶࢆㄪᰝࡋࡓ㸬3㸬ᐇ㦂⤖ᯝ
ᅗ 2 ࡟ ADC6 ࣏࣮ࣛࢫ Al ࡢᅽ⦰ヨ㦂᫬ࡢᵝᏊࢆ♧ࡍ㸬⣧ Al ࡀᘏᛶⓗ࡟ኚᙧࡋ࡚࠸ࡿࡢ࡟ᑐࡋ㸪ADC6 ࡣᔂࢀ࡞ࡀࡽ⬤ᛶⓗ࡟◚ቯࡉࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡲࡓ㸪ᔂࢀࡣ࣏࣮ࣛࢫ Al ୗ㒊࠿ࡽ⏕ࡌ࡚࠾ࡾ㸪ୗ㒊ࡢ↝⤖ࡢᙅࡉࡀぢࡽࢀࡓ㸬ࡇࢀࡣࢶ࣮ࣝ᥋ゐ㠃࠿ࡽ㞳ࢀࡿࡇ࡜࡟ࡼࡿ㸪స〇᫬ࡢ ᗘࡢపୗࡀཎᅉ࡜ࡋ࡚⪃࠼ࡽࢀࡿ㸬ᅗ 3 ࡟ᛂຊࡦࡎࡳ⥺ᅗࢆ♧ࡍ㸬ࡦࡎࡳࡀ⣙ 15%ࡲ࡛ࡣ ADC6 ࡀ᭱ࡶ㧗࠸್ࢆ♧ࡋ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ࡑ
ࡢᚋ ADC6 ࡢᗏ㠃㒊࡟࠾ࡅࡿᔂࢀࡀ⏕ࡌࡿࡓࡵ⣧ Al ࡜ྠ⛬ᗘࡢ್࡜࡞ࡾ㸪᭱⤊ⓗ࡟⣧ Al ࡀ ADC6 ࡢᛂຊ್ࢆ㉸࠼ࡿ⤖ᯝ࡜࡞ࡗࡓ㸬ࡲࡓ㸪ADC12 ࡣỈὙ᫬ࡢᔂࢀ㸪㗵ࡢᙳ㡪࡟ࡼࡾ᭱ࡶప࠸್ࢆ♧ࡋࡓ㸬௨ୖࡢ⤖ᯝ࠿ࡽ㸪ADC6 ࡣ↝⤖≧ែࢆᨵၿࡋ㸪ᅽ⦰᫬ࡢᔂࢀࢆ㜵ࡄࡇ࡜ࡀྍ⬟࡜࡞ࢀࡤ㸪ࡼࡾ㧗࠸ᅽ⦰ᛂຊ್ࢆᐇ⌧࡛ࡁࡿ࡜⪃࠼ࡽࢀࡿ㸬4㸬⤖ゝᦶ᧿⢊ᮎ↝⤖ἲ࡟ࡼࡾ࣏࣮ࣛࢫ Al ࢆస〇ࡋࡓ⤖ᯝ㸪௨ୗࡢ⤖ゝࢆᚓࡓ㸬㸦㸯㸧ᦶ᧿⢊ᮎ↝⤖ἲ࡟ࡼࡾ㸪ADC6 ࣏࣮ࣛࢫ Al ࢆస〇࡛ࡁࡓ㸬㸦㸰㸧ᦶ᧿⢊ᮎ↝⤖ἲ࡟ࡼࡾస〇ࡋࡓ ADC6 ࣏࣮ࣛࢫ Al ࡣ㸪ࢶ࣮ࣝ᥋ゐ㠃࠿ࡽ㐲࠸ᗏ㠃㒊࡛↝⤖≧ែࡀᙅࡃ㸪ᅽ⦰ヨ㦂᫬࡟ࡣᗏ㠃㒊࠿ࡽ◚ቯࡀ㐍⾜ࡋࡓ㸬ㅰ㎡ ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼ
ࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝 ⸨஭ⱥಇᩍᤵ㸧− 166 −

A1050 ࡜ ADC12 ࢆ⏝࠸ࡓ」ྜ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ⾪ᧁᅽ⦰≉ᛶ⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛ஂಖ⏣ ┤அ㸪༙㇂ ⚞ᙪ1㸬┠ⓗ࣏࣮ࣛࢫ Al ࡣ㉸㍍㔞࡛⾪ᧁ྾཰≉ᛶ➼࡟ඃࢀࡓከᏍ㉁ᮦᩱ࡛࠶ࡿ㸬ࡑࡢࡓࡵ⮬ື㌴⏝㒊ᮦ࡜ࡋ࡚⏝࠸ࡿࡇ࡜࡛Ᏻ඲ᛶྥୖࡀᮇᚅࡉࢀࡿ㸬ࡲࡓ࣏࣮ࣛࢫ Al ࡢ≉ᛶࡣẕᮦࡢ✀㢮ࡸẼᏍᙧែ࡟ࡼࡗ࡚ኚࢃࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ㸬㐣ཤࡢ◊✲ࡼࡾ㸪ADC12 ࣏࣮ࣛࢫ Al ࡣᅽ⦰ኚᙧࡍࡿ㝿㸪⬤ᛶⓗ࡟ኚᙧ࣭◚ቯࡍࡿࡇ࡜ࡀࢃ࠿ࡗ࡚
࠸ࡿ㸬ࡉࡽ࡟㟼ⓗᅽ⦰ヨ㦂࡟࠾ࡅࡿࣉࣛࢺ࣮ᛂຊ࡜⾪ᧁᅽ⦰ヨ㦂࡟࠾ࡅࡿࣉࣛࢺ࣮ᛂຊ࡛ࡣ㸪⾪ᧁᅽ⦰ヨ㦂ࡢ᪉ࡀప࠸್࡜࡞ࡿࡇ࡜ࡀࢃ࠿ࡗ࡚࠸ࡿ㸬ࡇࡢཎᅉ࡜ࡋ࡚㸪⾪ᧁᅽ⦰ヨ㦂࡛ࡣ㸪ኚᙧࡢ㏵୰࡛ヨ㦂∦ࡢ୍㒊ࡀ⬺ⴠ㸪㣕ᩓࡍࡿࡓࡵ㸪Ⲵ㔜ࢆᨭ࠼ࡿ᩿㠃✚ࡀῶᑡࡋ㸪Ⲵ㔜ࢆᨭ࠼ࡽࢀ࡞ࡃ࡞ࡿࡓࡵࡔ࡜⪃࠼ࡽࢀࡿ㸬ࡋࡓ
ࡀࡗ࡚㸪ADC12 ࡢ⬤ᛶⓗኚᙧࡢᢚไࡀ࡛ࡁࢀࡤ㸪⾪ᧁᅽ⦰ࡢ㝿ࡶ㸪㟼ⓗᅽ⦰᫬࡜ྠ⛬ᗘࡢࣉࣛࢺ࣮ᛂຊࢆᚓ
ࡽࢀࡿࡇ࡜ࡀᮇᚅࡉࢀࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ᘏᛶⓗ࡞ኚᙧᣲືࢆ♧ࡍ A1050 ࣏࣮ࣛࢫ Al ࡛ ADC12 ࣏࣮ࣛࢫ Al ࡢഃ㠃ࢆᅖࡗࡓ」ྜ࣏࣮ࣛࢫ Al ࢆస〇ࡍࡿ㸬ࡲࡓస〇ࡋࡓ」ྜ࣏࣮ࣛࢫ࡟ᑐࡋ࡚⾪ᧁᅽ⦰ヨ㦂ࢆ⾜࠸㸪」ྜ࣏࣮ࣛࢫ Al ࡢᅽ⦰ኚᙧᣲືࡢほᐹࡍࡿࡇ࡜࡛ A1050 ࣏࣮ࣛࢫ Al ࡜ࡢ」ྜ໬ࡢ᭷ຠᛶࢆㄪᰝࡍࡿ㸬
2㸬◊✲᪉ἲ
ᦶ᧿ᨩᢾࣉࣟࢭࢵࢩࣥࢢ(Friction Stir Processing, FSP)ࢆ฼⏝ࡋࡓ」ྜ࣏࣮ࣛࢫ Al ࡢస〇ἲࡢᴫ␎ᅗࢆᅗ 1࡟♧ࡍ㸬ࡲࡎᕤᴗ⏝⣧ Al ࡛࠶ࡿ A1050 ᯈᮦࢆ㸪ᅗ 1(a)ࡢࡼ࠺࡟ⓎἻ๣⢊ᮎ㸦TiH2, <45 ȝm, 1 mass%㸧࠾ࡼࡧẼᏍᙧែᏳᐃ๣⢊ᮎ㸦Į-Al2O3, ⣙ 1 ȝm, 5 mass%㸧ࢆᩓᕸࡉࡏ A1050 ✚ᒙᯈ࡜ࡋ㸪FSW ⿦⨨ࢆ⏝࠸࡚㸪ࣉ࣮ࣟࣈࡢ௜࠸ࡓࢶ࣮ࣝࢆ㧗㏿ᅇ㌿ࡉࡏ࡞ࡀࡽ㉮ᰝࡍࡿࡇ࡜࡛⢊ᮎࡢᨩᢾ࡜ᯈᮦࡢ᥋ྜࢆ⾜࡞ࡗࡓ㸬ࡲࡓෆ㒊࡟ከࡃࡢ࢞ࢫࢆྵࢇ࡛࠸ࡿADC12ᯈᮦ࡟ᑐࡋ࡚ࡣ㸪
ᅗ1(b)ࡢࡼ࠺࡟ẼᏍᙧែᏳᐃ๣⢊ᮎࡢࡳࢆᩓᕸࡉࡏADC12✚ᒙᯈ࡜ࡋ㸪ࢶ࣮ࣝ㉮ᰝࡍࡿࡇ࡜࡛⢊ᮎࡢᨩᢾ࡜ᯈᮦࡢ᥋ྜࢆ⾜࡞ࡗࡓ㸬ḟ࡟ FSP ࢆ⾜ࡗࡓ A1050 ᯈᮦ࠿ࡽᨩᢾ㒊ศࢆ 35 mm  35 mm  10 mm ࡜࡞ࡿࡼ࠺࡟ษࡾฟࡋࡓᚋ㸪ෆഃ 20 mm  20 mm  10 mm ࢆྲྀࡾ㝖࠸ࡓ㸬ࡲࡓ ADC12 ᯈᮦ࠿ࡽᨩᢾ㒊ศࢆ 20 mm  20 mm  10 mm ࡜࡞ࡿࡼ࠺࡟ษࡾฟࡋ㸪A1050 ࡜⤌ࡳྜࢃࡏࡿࡇ࡜࡛」ྜ࣏࣮ࣛࢫ Al ࡢࣉ࣮ࣜ࢝ࢧ࡜ࡋࡓ㸬స〇ࡋࡓࣉ࣮ࣜ࢝ࢧࢆ㞺ᅖẼ ᗘ 1003 K㸪ಖᣢ᫬㛫 13.6 min ࡢⓎἻ᮲௳࡛ⓎἻࡉࡏ㸪స〇ࡋࡓ」ྜ࣏࣮ࣛࢫ Al ࠿ࡽ 30 mm  30 mm  20 mm ࡢᅽ⦰ヨ㦂∦ࢆᨺ㟁ຍᕤ࡛ษࡾฟࡋࡓ㸬− 167 −

ษࡾฟࡋࡓᅽ⦰ヨ㦂∦ࡢෆ㒊ẼᏍᙧែࡢほᐹࢆ࣐࢖ࢡࣟࣇ࢛࣮࢝ࢫ X ⥺ CT ࡟ࡼࡾ⾜ࡗࡓ㸬ࡲࡓ⾪ᧁᅽ⦰
ヨ㦂ࡣⴠ㗽ᆺ⾪ᧁヨ㦂⿦⨨㸦Dynatup 9250HV㸪INSTRON㸧ࢆ⏝࠸࡚⾜࠸㸪◚ቯᣲືࡢほᐹ࡟ࡣ㧗㏿ᗘ࣓࢝ࣛࢆ౑⏝ࡋࡓ㸬㗽ࡢ㉁㔞ࢆ M = 25.48 kg㸪ⴠୗ㧗ࡉࢆ H = 1 m ࡟タᐃࡋࡓ㸬3㸬ᐇ㦂⤖ᯝ
ᅗ 2 ࡟ᅽ⦰ヨ㦂∦ࡢእほ࠾ࡼࡧ X ⥺ CT ࡟ࡼࡾ᧜ീࡋࡓヨ㦂∦ෆ㒊ࡢ᩿㠃⏬ീࢆ♧ࡍ㸬ᅗࡢ a㸪b㸪c ࡣࡑࢀࡒࢀእほᅗ࡟♧ࡋࡓ⟠ᡤࡢ᩿㠃࡟ᑐᛂࡋࡓ X ⥺ CT ⏬ീ࡛࠶ࡿ㸬ࡇࡢ X ⥺ CT ⏬ീ࠿ࡽୖẁ㸪୰ẁ㸪ୗẁ࡛࡯ࡰྠᵝ࡞ẼᏍᙧែࡀほᐹࡉࢀࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪୰ẁ㸪ୗẁ࡛ࡣヨ㦂∦ࡢ୰ኸ㒊࡟⣽࠿࡞ẼᏍࡀከࡃ࠶
ࡾ㸪ࡑࡢ࿘ᅖࢆ኱ࡁ࡞ẼᏍࡀᅖ࠺ࡼ࠺࡟Ꮡᅾࡋ࡚࠸ࡿࡢ࡟ᑐࡋ࡚㸪ୖẁ࡛ࡣ⣽࠿࠸ẼᏍࡀ೫ࡗ࡚࠸ࡿࡇ࡜ࡀ
ࢃ࠿ࡿ㸬ࡇࡢ⣽࠿࠸ẼᏍࡣ ADC12 ࡢෆ㒊࢞ࢫ࡟ࡼࡿẼᏍ࡛࠶ࡾ㸪ࡲࡓࡑࡢ࿘ᅖࡢ኱ࡁ࡞ẼᏍࡣ A1050 ࡟ᩓ
ᕸࡋࡓⓎἻ๣࡟ࡼࡿẼᏍ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࡢࡇ࡜࠿ࡽヨ㦂∦ࡢୖ㒊࡛ࡣ ADC12 ࡀ೫ࡗ࡚Ꮡᅾࡋ࡚࠸
ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡇࢀࡣ A1050 ࡼࡾࡶ ADC12 ࡢ᪉ࡀᅛ⁐⥺ ᗘࡀప࠸ࡓࡵ ADC12 ࡀඛ࡟ⓎἻࡋ㸪ᚋ࠿ࡽ
ⓎἻࡋࡓ A1050 ࡢⓎἻࡢᙳ㡪ࢆཷࡅࡓࡓࡵࡔ࡜⪃࠼ࡽࢀࡿ㸬ࡇࢀ࡟ࡘ࠸࡚ࡣ㸪ⓎἻ ᗘ㸪ຍ⇕᫬㛫ࢆㄪᩚࡍࡿࡇ࡜࡛ᨵၿ࡛ࡁࡿ࡜⪃࠼ࡽࢀࡿ㸬ᅗ 3 ࡟⾪ᧁᅽ⦰ヨ㦂ࡢᅽ⦰㐣⛬ࢆ♧ࡍ㸬ADC12 ༢య࣏࣮ࣛࢫ Al ࡢ᫬࡟ぢࡽࢀࡓヨ㦂∦ࡢ⬺ⴠࡸ㣕ᩓࡀ㸪」ྜ࣏࣮ࣛࢫ Al ࡛ࡣぢࡽࢀ࡞࠿ࡗࡓ㸬ࡇࡢࡇ࡜࠿ࡽ㸪࿘ᅖࡢ A1050 ࣏࣮ࣛࢫ Al ࡟ࡼࡗ࡚ ADC12 ࣏࣮ࣛࢫAl ࡢ⬤ᛶⓗኚᙧࡀᢚไࡉࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬4㸬⤖ゝᮏ◊✲࡛ࡣ㸪ᦶ᧿ᨩᢾἲࢆ⏝࠸࡚㸪ADC12 ࣏࣮ࣛࢫ Al ࡢ࿘ᅖࢆ A1050 ࡛ᅖࢇࡔ」ྜ࣏࣮ࣛࢫ Al ࡢస〇ࢆヨࡳࡓ㸬A1050 ࣏࣮ࣛࢫ Al ࢆ⏝࠸࡚ ADC12 ࣏࣮ࣛࢫ Al ࡢ⬤ᛶⓗኚᙧࢆᢚไࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࡇ࡜
ࡀ♧ࡉࢀ㸪࣏࣮ࣛࢫ Al ࡢ」ྜ໬ࡢ᭷ຠᛶࡀ♧ࡉࢀࡓ㸬ㅰ㎡ ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼ
ࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 168 −

ᦶ᧿Ⓨ⇕⌧㇟ࢆ฼⏝ࡋࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢస〇⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛ᅯᏊ⏣ ᖾభ㸪༙㇂ ⚞ᙪ1㸬┠ⓗ࣏࣮ࣛࢫ㔠ᒓࡣ㍍㔞ᛶ㸪㧗࠸⾪ᧁ྾཰ᛶ➼ࡢඃࢀࡓᛶ㉁ࢆ᭷ࡍࡿከᏍ㉁࡞ᮦᩱ࡛࠶ࡿ㸬ࡲࡓ㸪ẼᏍྠኈࡀ஫࠸࡟⧅ࡀࡗ࡚࠸ࡿ࣮࢜ࣉࣥࢭࣝᵓ㐀ࡢ࣏࣮ࣛࢫ㔠ᒓࡣὶయ㏱㐣ᛶࢆ᭷ࡍࡿ㸬௨ୖࡢᛶ㉁࠿ࡽ࣏࣮ࣛࢫ㔠ᒓࡣ⮬ື㌴ࡢ⾪ᧁ྾཰⏝㒊ᮦ㸪㜵㡢ᮦ㸪ࣇ࢕ࣝࢱ➼࡬ࡢ㐺⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬㏆ᖺⴭ⪅ࡽࡢ◊✲࡟ࡼࡾ࣏࣮
ࣛࢫ㔠ᒓࡢస〇ἲ࡜ࡋ࡚ᦶ᧿⢊ᮎ↝⤖ἲࡀ㛤Ⓨࡉࢀࡓ㸬ᦶ᧿⢊ᮎ↝⤖ἲࡣ Sintering and Dissolution Process ࡢࡼ࠺࡟ࢫ࣮࣌ࢧ⢏Ꮚ㸦ᚋ࡟ྲྀࡾ㝖࠿ࢀẼᏍࢆᙧᡂࡍࡿ≀㉁㸧࡜ࡋ࡚ሷ໬ࢼࢺ࣒ࣜ࢘㸦NaCl㸧ࢆ⏝࠸ࡿ㸬ࡲࡎ㸪㔠ᒓ⢊ᮎ࡜ NaCl ⢊ᮎࢆΰྜࡋࡓཎᮦᩱࢆᆺ࡟ධࢀ㸪㧗㏿ᅇ㌿ࡋࡓࢶ࣮ࣝࢆᆶ┤࡟▷᫬㛫ᤄධࡍࡿ㸬ࢶ࣮ࣝࡢᤄධ࡟ࡼࡗ࡚Ⓨ⏕ࡍࡿᦶ᧿⇕࡜Ⲵ㔜ࢆ㔠ᒓ⢊ᮎ࡟୚࠼ࡿࡇ࡜࡛↝⤖ࡀ⾜ࢃࢀࡿ㸬ḟ࡟㸪↝⤖యࢆᶵᲔຍᕤ
࡟ࡼࡾྲྀࡾฟࡋ࡚ỈὙࡍࡿ㸬ỈὙ࡟ࡼࡾ↝⤖య࡟ྵࡲࢀࡿ NaCl ࡀ⁐ゎࡋ㸪NaCl ࡢᙧ≧ࡀ㌿෗ࡉࢀࡓẼᏍࢆ᭷ࡍࡿ࣏࣮ࣛࢫ㔠ᒓࡀᚓࡽࢀࡿ㸬ࡇࡢࡼ࠺࡟ᦶ᧿⢊ᮎ↝⤖ἲࡣࢶ࣮ࣝ᥋ゐ఩⨨ࡢࡳࢆຍ⇕ࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡾ㸪స〇᫬㛫ࡶ▷࠸ࡇ࡜࠿ࡽ⎔ቃ㈇Ⲵࡢపῶ࡜⏕⏘ᛶࡢྥୖࡀᮇᚅࡉࢀࡿ㸬ຍ࠼࡚㸪ᦶ᧿᧠ᢾ᥋ྜࡢࡼ࠺
࡟ࢶ࣮ࣝ㉮ᰝࢆ⾜࠸࡞ࡀࡽᦶ᧿⇕ࢆⓎ⏕ࡉࡏࡿࡇ࡜࡛࣏࣮ࣛࢫ㔠ᒓࡢ㉮ᰝ᪉ྥ࡬ࡢ኱ᆺ໬ࡀྍ⬟࡜࡞ࡿᡭἲ
ࡀ㛤Ⓨࡉࢀࡓ㸬௨ᚋ㸪ࡇࡢ᪉ἲࢆࢶ࣮ࣝ㉮ᰝᆺᦶ᧿⢊ᮎ↝⤖ἲ࡜ࡍࡿ㸬ᮏ◊✲࡛ࡣࢶ࣮ࣝ㉮ᰝᆺᦶ᧿⢊ᮎ↝⤖ἲ࡟ࡼࡾẼᏍ⋡ࡀ 60%㸪70%㸪80%ࡢ࣏࣮ࣛࢫ Al ࢆస〇ࡋ㸪ẼᏍ⋡࡜ᶵᲔⓗᛶ㉁ࡢ㛵ಀࢆ᳨ウࡍࡿ㸬స〇ࡋࡓ࣏࣮ࣛࢫ Al ࡣࢶ࣮ࣝ㉮ᰝࡢᙳ㡪࡟ࡼࡾ NaCl ࡀ೫ᯒࡋ㸪ẼᏍࡀ೫ࡗ࡚ᙧᡂࡉࢀࡿᠱᛕࡀ࠶ࡿ㸬ࡑࡇ࡛㸪X ⥺ CT ᧜ീࢆ⏝࠸࡚ෆ㒊ࢆ㠀◚ቯほᐹࡍࡿ㸬ຍ࠼࡚㸪ᅽ⦰ヨ㦂ࢆ⾜࠺ࡇ࡜࡛ẼᏍ⋡ࡀኚ໬ࡋࡓࡇ࡜࡟ࡼࡿᶵᲔⓗᛶ㉁࡬ࡢᙳ㡪ࢆ᳨ウࡍࡿ㸬
2㸬◊✲᪉ἲ
ᅗ 1 ࡟ࢶ࣮ࣝ㉮ᰝᆺᦶ᧿⢊ᮎ↝⤖ἲ࡟ࡼࡿ࣏࣮ࣛࢫ Al స〇᪉ἲࡢᴫ␎ᅗࢆ♧ࡍ㸬ࡲࡎ Al ⢊ᮎ㸦20 μm㸧
࡜ NaCl ⢊ᮎ㸦300㹼425 μm㸧ࢆẼᏍ⋡㸦NaCl ࡢయ✚⋡㸧ࡀ 60%㸪70%㸪80%࡜࡞ࡿࡼ࠺࡟ΰྜࡋ࡚ཎᮦᩱ࡜
ࡋࡓ㸬ΰྜࡋࡓཎᮦᩱࢆᖜ 10 mm㸪㛗ࡉ 50 mm㸪୧➃ࡀ R5 mm㸪῝ࡉ 7 mm ࡢ⁁ࢆ㛤ࡅࡓཌࡉ 10 mm ࡢ↓− 169 −

㓟⣲㖡ࡢᆺ࡟ධࢀ㸪ΰྜ⢊ᮎࡢୖ࡟⁁࡜ྠࡌᑍἲ࡛ษࡾᢤ࠸ࡓཌࡉ 2 mm ࡢ↓㓟⣲㖡ࡢ୰ᯈࢆධࢀࡓᚋ㸪ཌ
ࡉ 3 mm ࡢ↓㓟⣲㖡ࡢୖᯈࢆ࠿ࡪࡏࡓ㸦ᅗ 1㸦a㸧㸧㸬ḟ࡟㸪ΰྜ⢊ᮎࢆධࢀࡓ⟠ᡤࢆ࡞ࡒࡿࡼ࠺࡟ࢶ࣮ࣝ㉮ᰝ
ࢆ 2 ᅇ⾜ࡗࡓ㸦ᅗ 1㸦b㸧㸧㸬ࢶ࣮ࣝࡢᑍἲࡣࢩࣙࣝࢲ㒊ࡀ┤ᚄ 15 mm㸪ඛ➃࡟┤ᚄ 5 mm㸪㛗ࡉ 0.5 mm ࡢࣉ࣮ࣟࣈࡀࡘ࠸ࡓࡶࡢࢆ౑⏝ࡋ㸪ᮦ㉁ࡣ㖡ࡢᦶ᧿᧠ᢾ᥋ྜ࡟ࡼࡃ⏝࠸ࡽࢀࡿ㉸◳㉁ྜ㔠࡜ࡋࡓ㸬ࢶ࣮ࣝ㉮ᰝࡣࢶ࣮ࣝࡢ୰ᚰࢆ෇ᘼ㒊ࡢ୰ᚰ࡟ྜࢃࡏ࡚๓㐍ゅ 3r㸪ᅇ㌿ᩘ 1000 rpm㸪ᤄධ㏿ᗘ 1 mm/min ࡛ᤄධࡋ㸪ࡑࡢሙ
࡛ 10 s ࣮࣍ࣝࢻࡉࡏ㸪㉮ᰝ㏿ᗘ 50 mm/min㸪㉮ᰝ㔞 50 mm ࡛㉮ᰝࡋࡓ㸬㉮ᰝᚋࡣࡑࡢሙ࡛ 10 s ࣮࣍ࣝࢻࡉࡏ
࡚ᘬࡁᢤ࠸ࡓ㸬ࢶ࣮ࣝᤄධ㔞ࡣ 1 ᅇ┠ࡀࢶ࣮ࣝ࡜ୖᯈࡢ᥋ゐ఩⨨࠿ࡽ 1 mm ࡜ࡋ㸪2 ᅇ┠ࡣᤄධ㔞ࢆ 1 mm ቑຍࡉࡏࡓ㸬ࡘࡲࡾ㸪ཎᮦᩱࢆධࢀࡓ⟠ᡤࢆྜィ 2 mm ᢲࡋ㎸ࡳ㸪↝⤖ࢆ⾜ࡗࡓ㸬ࡑࡋ࡚㸪↝⤖యࢆᶵᲔຍᕤ
࡟ࡼࡾྲྀࡾฟࡋ࡚ỈὙࡋ㸦ᅗ 1㸦c㸧㸧㸪࣏࣮ࣛࢫ Al ࢆᚓࡓ㸦ᅗ 1㸦d㸧㸧㸬ྛẼᏍ⋡ࡢ࣏࣮ࣛࢫ Al ࢆ 3 ಶࡎࡘస〇ࡋ㸪ࡑࢀࡒࢀᅗ 1㸦d㸧࡟♧ࡍࡼ࠺࡟ 3 ⟠ᡤࢆษࡾฟࡋ࡚ཌࡉ 3㹼3.5 mm㸪10 mm10 mm ࡢᅽ⦰ヨ㦂∦ࢆᚓࡓ㸬ᅽ⦰ヨ㦂∦ࡣࢶ࣮ࣝᤄධ఩⨨࡟㏆࠸ഃ࠿ࡽ A㸪B㸪C ࡜ࡋࡓ㸬స〇ࡋࡓᅽ⦰ヨ㦂∦࡟ᑐࡋ࡚ X ⥺⟶㟁ᅽ 80 kV㸪X ⥺⟶㟁ὶ 20 μm ࡛ X ⥺ CT ᧜ീࢆ⾜࠸㸪ෆ㒊ࡢẼᏍศᕸࢆ㠀◚ቯほᐹࡋࡓ㸬ຍ࠼࡚㸪ࢡࣟࢫ࣊ࢵࢻ㏿ᗘ 0.6 mm/min ࡛ᅽ⦰ヨ㦂ࢆ⾜࠸㸪ẼᏍ⋡ࡢኚ໬࡟ࡼࡿᶵᲔⓗᛶ㉁࡬ࡢᙳ㡪ࢆ᳨ウࡋࡓ㸬
3㸬ᐇ㦂⤖ᯝ
ᅗ 2 ࡟స〇ࡋࡓ࣏࣮ࣛࢫ Al ࡢእほᅗࢆ♧ࡍ㸬ẼᏍ⋡ࡣ 80%࡛ỈὙ๓ࡢ⏬ീ࡛࠶ࡿ㸬࡯ࡰᆺ࡟ࡘࡅࡓ⁁ࡢᑍἲࡀಖࡓࢀ࡚࠾ࡾ㸪ྲྀࡾฟࡋࡢ㝿࡟ᔂࢀࡿᵝᏊࡣほᐹࡉࢀ࡞࠿ࡗࡓ㸬ᅗ 3 ࡟ྛẼᏍ⋡࡟࠾ࡅࡿᅽ⦰ヨ㦂∦ B ࡢ୰ᚰ௜㏆ࡢ X ⥺ CT ᩿ᒙ⏬ീࢆ♧ࡍ㸬ྛẼᏍ⋡࡟࠾࠸࡚ NaCl ࡢ೫ᯒࡣⓎ⏕ࡋ࡚࠾ࡽࡎ㸪࡯ࡰᆒ୍࡞ẼᏍศᕸࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ᅗ 4 ࡟ᅽ⦰ヨ㦂⤖ᯝࢆ♧ࡍ㸬ྛẼᏍ⋡࡟࠾ࡅࡿᅽ⦰ヨ㦂∦ B ࡢᅽ⦰ヨ㦂⤖ᯝࢆ♧ࡋ࡚࠸ࡿ㸬ྛẼᏍ⋡࡟࠾࠸࡚ึࡵ࡟ᙎᛶᇦ㸪ḟ࡟ෆ㒊ࡢẼᏍࡀᚎࠎ࡟ᅽ₽ࡍࡿࡇ࡜࡛ᛂຊࡢୖ᪼ࡀ⦆ࡸ࠿࡟࡞ࡿࣉࣛࢺ࣮㡿ᇦ㸪᭱ᚋ࡟⦓ᐦ໬㡿ᇦࡀほᐹࡉࢀࡓ㸬ᅽ⦰ࡢ㐣⛬࡛ᛴ࡞ᛂຊࡢኚືࡣほᐹࡉࢀࡎ㸪ᘏᛶⓗ࡞◚ቯᣲືࢆ♧ࡋࡓࡇ࡜࠿
ࡽ㸪Al ⢊ᮎࡢ↝⤖ࡣྛẼᏍ⋡࡛㐺ษ࡟⾜ࢃࢀ࡚࠸ࡿ࡜⪃࠼ࡿ㸬ࡲࡓ㸪ẼᏍ⋡ࡀ㧗ࡃ࡞ࡿ࡯࡝ᛂຊࡢ್ࡀపࡃ
࡞ࡗ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡇࡢࡇ࡜࠿ࡽ㸪ཎᮦᩱෆࡢ NaCl ࡢ๭ྜࢆኚ໬ࡉࡏࡿࡇ࡜࡛ẼᏍ⋡ࢆไᚚࡋ㸪ᶵᲔⓗᛶ㉁ࡢไᚚࡀྍ⬟࡛࠶ࡿ࡜⪃࠼ࡿ㸬4㸬⤖ゝᮏ◊✲࡛ࡣࢶ࣮ࣝ㉮ᰝᆺᦶ᧿⢊ᮎ↝⤖ἲ࡟ࡼࡾẼᏍ⋡ࡀ 60%㸪70%㸪80%ࡢ࣏࣮ࣛࢫ Al ࢆస〇ࡋ㸪ẼᏍ⋡࡜ᶵᲔⓗᛶ㉁ࡢ㛵ಀࢆ᳨ウࡋࡓ㸬స〇ࡋࡓ࣏࣮ࣛࢫ Al ࡣ࡯ࡰᆺ࡟ࡘࡅࡓ⁁ࡢᑍἲࡀಖࡓࢀ࡚࠸ࡓ㸬X ⥺ CT᩿ᒙ⏬ീ࠿ࡽస〇ࡋࡓ࣏࣮ࣛࢫ Al ࡣẼᏍ⋡࡟ࡼࡽࡎ࡯ࡰᆒ୍࡞ẼᏍศᕸࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ᅽ⦰ヨ㦂࠿ࡽస〇ࡋࡓ࣏࣮ࣛࢫ Al ࡣᘏᛶⓗ࡞◚ቯᣲືࢆ♧ࡋ࡚࠾ࡾ㸪Al ⢊ᮎࡢ↝⤖ࡣྛẼᏍ⋡࡛㐺ษ࡟⾜ࢃࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡲࡓ㸪ẼᏍ⋡ࡀ㧗ࡃ࡞ࡿ࡯࡝ᛂຊࡢ್ࡀపࡃ࡞ࡗ࡚࠸ࡿࡇ࡜࠿ࡽ㸪ཎᮦᩱෆࡢ NaClࡢ๭ྜ࡟ࡼࡾẼᏍ⋡ࢆไᚚࡍࡿࡇ࡜࡛ᶵᲔⓗᛶ㉁ࡢไᚚࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬ㅰ㎡
 ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼ
ࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 170 −

ADC12 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࠾ࡼࡧ A1050 ࣃ࢖ࣉࡢ」ྜ㒊ᮦ࡟࠾ࡅࡿ
ࣃ࢖ࣉཌࡉ࡜ᅽ⦰ኚᙧᣲືࡢ㛵ಀ⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛୰㔝 ࡺࡁᏊ㸪༙㇂ ⚞ᙪ1㸬┠ⓗ࣏࣮ࣛࢫ Al ࡜⦓ᐦᮦࡢ」ྜ໬ࡢ౛࡜ࡋ࡚㸪ࢧࣥࢻ࢖ࢵࢳࣃࢿࣝࡀ࠶ࡿ㸬ࡇࢀࡣ㸪࣏࣮ࣛࢫ Al ࢆ⦓ᐦᯈᮦ
࡛ᣳࡳ᥋ྜࡍࡿࡶࡢ࡛㸪ࡑࡢ᥋ྜ᪉ἲ࡜ࡋ࡚ࡣ㸪᥋╔๣ࢆ⏝࠸ࡿࡶࡢ࡜㔠ᒓ᥋ྜࢆ᪋ࡍࡶࡢࡀ࠶ࡿ㸬᥋╔๣ࢆ⏝࠸ࡿ᪉ἲࡣ⡆౽࡛࠶ࡿࡀ⪏ஂᛶ㸪ࣜࢧ࢖ࢡࣝᛶ㸪㧗 ⎔ቃୗ࡛ࡢ฼⏝࡟ㄢ㢟ࡀ࠶ࡿ㸬㔠ᒓ᥋ྜ࡟ࡼࡾ」ྜ໬ࡍࡿࡇ࡜࡛ࡇࢀࡽࡢㄢ㢟ࡀゎᾘࡉࢀ㸪฼⏝⠊ᅖᣑ኱ࡀᮇᚅࡉࢀࡿ㸬୍᪉࡛㸪࣏࣮ࣛࢫ Al ࡜ࣃ࢖ࣉ࡜ࡢ」ྜ໬࡟㛵ࡋ࡚ࡣ㸪ᚑ᮶᥋╔๣ࢆ౑⏝ࡋࡓ᪉ἲࡀ୺࡛࠶ࡗࡓ㸬᭱㏆ࡢ◊✲࡛㸪ᦶ᧿ᅽ᥋ࢆ฼⏝ࡋࡓ࣏࣮ࣛࢫ Al࡜ࣃ࢖ࣉ࡜ࡢ㔠ᒓ᥋ྜࢆకࡗࡓ」ྜ໬ࡀヨࡳࡽࢀ࡚࠸ࡿ㸬௒ࡲ࡛࡟㸪࣏࣮ࣛࢫ Al ࡜ࢫࢳ࣮ࣝࣃ࢖ࣉ㸪࣏࣮ࣛ
ࢫ Al ࡜ Al ࣃ࢖ࣉ࡜ࡢ」ྜ໬ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗ࡚࠸ࡿ(」ྜ໬ࡋࡓࡶࡢࢆ௨ୗ࣏࣮ࣛࢫࢥ࢔ࣃ࢖ࣉ࡜࿧ࡪ) 㸬ࡲࡓ㸪ࣃ࢖ࣉࢆⷧ⫗໬ࡍࡿࡇ࡜࡟ࡼࡗ࡚ࡉࡽ࡞ࡿ㍍㔞໬ࡀ࡛ࡁ㸪ࣃ࢖ࣉཌࡉࡢኚ໬࡟ࡼࡿᅽ⦰≉ᛶࡢไᚚࡀྍ⬟࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ᮏ◊✲࡛ࡣ㸪ᯈᮦ࠿ࡽస〇ࡋࡓⷧ⫗ Al ࣃ࢖ࣉࢆ౑⏝ࡋ࡚࣏࣮ࣛࢫࢥ࢔ࣃ࢖ࣉࢆస〇ࡋࡓ㸬ࡓࡔࡋ㸪࣏࣮ࣛࢫ Al ࡜ Al ࣃ࢖ࣉࡀྠࡌ Al ྜ㔠ࡢሙྜ㸪ຍ⇕࣭ⓎἻ᫬࡟⦓ᐦ㒊ࡀ⁐⼥ࡋ࡚ࡋࡲ࠺ࡓࡵ㸪」ྜ໬ࡀ㞴ࡋ࠸㸬ࡑࡇ࡛㸪࣏࣮ࣛࢫ Al ࡢẕᮦ࡟ࡣẚ㍑ⓗ⼥Ⅼࡢప࠸ࢲ࢖࢝ࢫࢺ⏝ Al ྜ㔠࡛࠶
ࡿ ADC12 ࢆ㸪Al ࣃ࢖ࣉࡢẕᮦ࡟ࡣᕤᴗ⏝⣧ Al ࡛࠶ࡿ A1050 ࢆ౑⏝ࡋࡓ㸬ࡲࡓ㸪ᚓࡽࢀࡓࡑࢀࡒࢀࡢ࣏࣮
ࣛࢫࢥ࢔ࣃ࢖ࣉ࡟ᑐࡋ࡚㸪X ⥺ CT ࢆ⏝࠸ࡓෆ㒊ࡢ㠀◚ቯほᐹ࠾ࡼࡧᅽ⦰≉ᛶࡢㄪᰝ㸪ᅽ⦰ኚᙧᣲືࡢほᐹࢆ⾜ࡗࡓ㸬2㸬◊✲᪉ἲ
ᮏ◊✲࡛ࡣ㸪ᕷ㈍ࡉࢀ࡚࠸ࡿཌࡉ 1.0 mm ࡢ A1050 ࣃ࢖ࣉ(ᅗ 1(a))࡜ཌࡉ 0.5 mm ࡢᯈᮦࢆ୸ࡵ࡚స〇ࡋࡓ
A1050 ࣃ࢖ࣉ(ᅗ 1(b))ࢆ౑⏝ࡋࡓ㸬
ᅗ 2 ࡟࣏࣮ࣛࢫࢥ࢔ࣃ࢖ࣉࡢస〇᪉ἲࢆ♧ࡍ㸬ࡲࡎ㸪ADC12 ࣉ࣮ࣜ࢝ࢧࢆᅗ 2(a)ࡢࡼ࠺࡟ࢪࢢ࡛ᅛᐃࡋࡓ
A1050 ࣃ࢖ࣉ࡟ධࢀࡓ㸬ADC12 ࣉ࣮ࣜ࢝ࢧࡣᦶ᧿ᨩᢾἲ࡟ࡼࡾస〇ࡋࡓ㸬ADC12 ࣉ࣮ࣜ࢝ࢧࡢస〇ᡭ㡰ࡣ௨ୗ࡟♧ࡍ࡜࠾ࡾ࡛࠶ࡿ㸬ࡲࡎ࣏࣮ࣛࢫ Al ࡢཎᩱ࡜ࡋ࡚㸪ADC12 ᯈᮦ࡟ⓎἻ๣(TiH2)࠾ࡼࡧẼᏍᙧែᏳᐃᮦ
(Al2O3)ࡢΰྜ⢊ᮎࢆᩓᕸࡋࡓ㸬ྛ⢊ᮎࡢῧຍ㔞ࡣ ADC12 ᯈᮦࡢ㉁㔞࡟ᑐࡋ࡚ TiH2 ⢊ᮎࢆ 0.5 mass%㸪Al2O3⢊ᮎࢆ 5 mass%࡜ࡋࡓ㸬ḟ࡟✺㉳ࡢ௜࠸ࡓࢶ࣮ࣝࢆ㧗㏿ᅇ㌿ࡉࡏ࡞ࡀࡽ㉮ᰝࡍࡿࡇ࡜࡛㸪ᦶ᧿⇕࡟ࡼࡿረᛶ
ὶືࢆⓎ⏕ࡉࡏ㸪ADC12 ୰࡟⢊ᮎࢆᨩᢾࡉࡏ࡞ࡀࡽᯈࢆ᥋ྜࡋࡓ㸬ࡇ࠺ࡋ࡚ᚓࡽࢀࡓ ADC12 ࣉ࣮ࣜ࢝ࢧࢆ
ࣃ࢖ࣉ࡟඘ሸࡍࡿࡓࡵ㸪ᅗ 2(b)࡟♧ࡍࡼ࠺࡟ୖ㒊࠿ࡽࣃ࢖ࣉࡢᚄࡼࡾࡶᑡࡋᑠࡉ࠸ᚄࡢᗏࡀᖹ⁥࡞ࢶ࣮ࣝࢆᅇ㌿ࡉࡏ࡞ࡀࡽᢲࡋ㎸ࡴ㸬ࡇࢀ࡟ࡼࡾ㸪ᦶ᧿⇕࡟ࡼࡗ࡚ ADC12 ࣉ࣮ࣜ࢝ࢧࡢረᛶὶືࡀⓎ⏕ࡋࣃ࢖ࣉ࡟඘
ሸࡉࢀࡓ㸬ᅗ 2(c)࡟♧ࡍࡼ࠺࡟ࢶ࣮ࣝࢆᅇ㌿ࡉࡏࡓࡲࡲᘬࡁᢤࡁ㸪ࣃ࢖ࣉ࡜」ྜ໬ࡋࡓࣉ࣮ࣜ࢝ࢧࢆస〇ࡋࡓ㸬ᅗ 2(d)࡟」ྜ໬ࡋࡓࣉ࣮ࣜ࢝ࢧࡢ᩿㠃ᅗࢆ♧ࡍ㸬᭱ᚋ࡟㸪ຍ⇕࣭ⓎἻࡍࡿࡇ࡜࡟ࡼࡾᅗ 2(e)࡟♧ࡍ᩿㠃

− 171 −

ᅗࡢࡼ࠺࡞࣏࣮ࣛࢫࢥ࢔ࣃ࢖ࣉࢆస〇ࡋࡓ㸬ⓎἻ᮲௳ࡣຍ⇕ ᗘ 675 Υ㸪ಖᣢ᫬㛫 8.5 min ࡜ࡋࡓ㸬స〇ࡋࡓ࣏࣮ࣛࢫࢥ࢔ࣃ࢖ࣉࡢෆ㒊ࢆ㸪X ⥺ CT ⿦⨨ࢆ౑ࡗ࡚᧜ീࡋࡓ㸬ࡉࡽ࡟స〇ࡋࡓヨ㦂∦࡟ᑐࡋ࡚㟼ⓗᅽ⦰ヨ㦂ࢆ⾜࠸㸪ࡑࡢᵝᏊࢆࣅࢹ࢜᧜ᙳࡋࡓ㸬3㸬ᐇ㦂⤖ᯝ
ᅗ 3 ࡟స〇ࡋࡓヨ㦂∦ࡢእほᅗ࠾ࡼࡧ X ⥺ CT ⏬ീࢆ♧ࡍ㸬࡝ࡕࡽࡢヨ㦂∦ࡶࣃ࢖ࣉࡣಖᣢࡉࢀ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ࣃ࢖ࣉཌࡉ 1.0 mm
ࡢヨ㦂∦ࡢẼᏍ⋡ࡣ 86.3 %㸪
ᖹᆒẼᏍᚄࡣ 2.1 mm㸪ࣃ࢖ࣉ
ཌࡉ 0.5 mm ࡢヨ㦂∦ࡢẼᏍ⋡ࡣ 84.5 %㸪
ᖹᆒẼᏍᚄࡣ 2.0
mm ࡛࠶ࡾ㸪ྠ⛬ᗘࡢẼᏍᙧែࡀᚓࡽࢀࡓ㸬ᅗ 4 ࡟㟼ⓗᅽ⦰ヨ㦂࡟ࡼࡾᚓࡽࢀࡓᛂຊࡦࡎࡳ⥺ᅗ㸪ᅗ 5 ࡟ᅽ⦰ኚᙧᣲືࢆ♧ࡍ㸬ཧ⪃࡟ྠ᮲௳࡛స〇ࡋࡓ ADC12 ࣏࣮ࣛࢫ Al ༢యࡢᅽ⦰ኚᙧᣲືࡶ♧ࡍ㸬ᛂຊࡦࡎࡳ⥺ᅗ࠿ࡽ㸪ࣃ࢖ࣉཌࡉࡢ㐪࠸࠿ࡽࣉࣛࢺ࣮ᛂ
ຊ࡟ᕪࡀฟ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡲࡓ㸪ࣃ࢖ࣉཌࡉ 0.5 mm ࡢヨ㦂∦ࡢ᪉ࡀࣉࣛࢺ࣮ᛂຊࡀ㛗ࡃ⥆࠸࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡇࡢࡇ࡜ࡣ㸪ᅗ 4 ࡢࡼ࠺࡟㸪ࣃ࢖ࣉ⾲㠃ࡀᩘ࠿ᡤ⿣ࡅ࡚࠸ࡿࡇ࡜ࡀせᅉ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࡢᣲື࡟ࡼࡾ㸪ᅽ⦰ࡢ㝿ᮦᩱࡀᗈࡀࡾ⦓ᐦ໬ࡀ㐜ࢀࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬ࡓࡔࡋ㸪ᯈᮦࡢ⥅ࡂ┠࠿ࡽ⿣ࡅࡿ࡜ࡣ㝈ࡽ࡞࠸㸬୍᪉࡛㸪ADC12 ࣏࣮ࣛࢫ Al ༢యࡢࡼ࠺࡞⬤ᛶⓗ࡟ᔂࢀࡿࡼ࠺࡞ᣲືࡣ⦆࿴ࡉࢀ࡚࠸ࡿࡇ
࡜ࡀࢃ࠿ࡿ㸬
4㸬⤖ゝ
ཌࡉ 0.5 mm ࡢࣃ࢖ࣉࢆ౑⏝ࡋ࡚స〇ࡋࡓ࣏࣮ࣛࢫࢥ࢔ࣃ࢖ࣉ࡟࠾࠸࡚ࡣ㸪⾲㠃ࡀ⿣ࡅࡿࡼ࠺࡞ᣲືࢆ♧ࡋ㸪ࡑࢀ࡟ࡼࡗ࡚ࣉࣛࢺ࣮㡿ᇦࡀ㛗ࡃ⥆ࡃࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ㅰ㎡
 ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼ
ࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝 ⸨஭ⱥಇᩍᤵ㸧− 172 −

ᦶ᧿ᨩᢾ⢊ᮎࣉࣟࢭࢫ࡟ࡼࡿ Fe-7mass%Al ྜ㔠ࡢ⾲㠃◳໬ᆅ᪉⊂❧⾜ᨻἲே኱㜰ᕷ❧ᕤᴗ◊✲ᡤ
⚟ゅ┿⏨
1. ┠ⓗ
ᅇ㌿ࢶ࣮ࣝ࡟ࡼࡿᦶ᧿⇕࣭ረᛶὶືࢆ฼⏝ࡋ࡚ᮦᩱࢆ᥋ྜࡍࡿᦶ᧿ᨩᢾ᥋ྜࡣ㸪ᦶ᧿ᨩᢾࣉࣟࢭࢫ㸦FSP㸧࡜࿧ࡤࢀࡿ⾲㠃ᨵ㉁࡬ᛂ⏝ࡉࢀ㸪㏆ᖺ࡛ࡣ᧠ᢾ㒊࡟እ㒊࠿ࡽ⢊ᮎࢆ౪⤥ࡋ」ྜᮦᩱࢆస〇ࡍࡿᦶ᧿ᨩᢾ⢊ᮎࣉࣟࢭࢫ㸦FSPP㸧࡬࡜Ⓨᒎࡋ࡚࠸ࡿ㸬➹⪅ࡽࡶࡇࢀࡲ࡛࡟㍍㔠ᒓᮦᩱࡢ⾲㠃࡟ FSPP ࡛࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈࡸࣇࣛ
࣮ࣞࣥ➼ࢆᚤ⣽ศᩓࡉࡏ㸪ศᩓᙉ໬࡜⤖ᬗ⢏ᚤ⣽໬࡟ࡼࡿ㢧ⴭ࡞⾲㠃◳໬ࡀᚓࡽࢀࡿࡇ࡜ࢆሗ࿌ࡋ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪㕲㗰ᮦᩱ࡬ࡢ FSPP ࡢ㐺⏝ᛶࢆ᳨ウࡍࡿ┠ⓗ࡛㸪Fe-7mass%Al ࣇ࢙ࣛ࢖ࢺ㗰ࡢᯈᮦ࡟ᑐࡋ SiC ⢏Ꮚࢆ⏝࠸ࡓ FSPP ࢆ⾜࠸㸪㔠ᒓ⤌⧊࠾ࡼࡧ◳ࡉศᕸ࡟ཬࡰࡍᙳ㡪ࢆ᳨ウࡋࡓ㸬
2. ◊✲᪉ἲ
┿✵⁐ゎ㗪㐀࠾ࡼࡧ⇕㛫ᅽᘏ࡛స〇ࡋࡓᖜ 100 mm㛗ࡉ 100 mmཌࡉ 4mm ࡢ Fe-7mass%Al ྜ㔠㸦ओ࢔࣮ࣂ࣐ࣥࢸࣜ࢔ࣝࢬࡼࡾᥦ౪㸧ࡢᯈᮦ⾲㠃࡟᩿㠃‫ڧ‬1 mm ࡢ⁁ຍᕤࢆ᪋ࡋ㸪ࡑࡢ⁁࡟ SiC ⢏Ꮚࢆ඘ሸࡉࡏࡓᚋ㸪ȭ12 mm ࡢ㉸◳〇ᖹࢶ࣮ࣝࢆ⏝࠸࡚ᅇ㌿㏿ᗘ 500 rpm㸪⛣ື㏿ᗘ 50 mm/min㸪Ⲵ㔜 0.5kN ࡟࡚ FSPP ࢆ⾜࠸ࠊ⁁ࡢୖ࡟⣙ 0.3 mm ཌࡉࡢ⵹ࢆᙧᡂࡋࡓ㸬ḟ࡟ࠊᖹࢶ࣮ࣝࢆࣉ࣮ࣟࣈ㸦ᚄȭ7mm㧗ࡉ 0.7 mm㸧ࢆ᭷ࡍࡿࢩࣙ
ࣝࢲ࣮ᚄȭ12 mm ࡢ㉸◳〇ࢶ࣮ࣝ࡟஺᥮ࡋ㸪ᅇ㌿㏿ᗘ 400 rpm㸪⛣ື㏿ᗘ 400 mm/min㸦୍ᐃ㸧ࠊⲴ㔜 1.5kN ࡢ
᮲௳࡛ FSPP ࢆ⾜ࡗࡓ㸬ࡲࡓࠊẚ㍑ࡢࡓࡵࠊ⵹ຍᕤࡣ⾜ࢃࡎ࡟ࠊࣉ࣮ࣟࣈ௜ࡁࡢࢶ࣮࡛ࣝ┤᥋ FSPP ࢆ⾜࡞࠺ᐇ㦂ࡶᐇ᪋ࡋࡓ㸬
SiC ⢏Ꮚ࡟ࡣᕷ㈍ࡢᖹᆒ⢏ᚄࡀ 2㹼3ȣm ࡢࡶࡢࢆ⏝࠸ࡓ㸬FSPP ࢆ⾜ࡗࡓᚋࡢヨᩱ࡟ᑐࡋ㸪ගᏛ㢧ᚤ㙾ほᐹ㸪◳ࡉศᕸ ᐃ㸪X ⥺ᅇᢡ ᐃ࡞ࡽࡧ࡟ SEM- EDS ࡟ࡼࡿඖ⣲࣐ࢵࣆࣥࢢࢆ⾜ࡗࡓ㸬
3. ⤖ᯝ࠾ࡼࡧ⪃ᐹ
SiC ⢏Ꮚࢆ⏝࠸࡚ FSPP ࢆ⾜ࡗࡓ Fe-7mass%Al ྜ㔠ࡢ⾲㠃῝ࡉ᪉ྥࡢ◳ࡉศᕸࠊ࠾ࡼࡧ᩿㠃ࡢ࣑ࢡࣟ⤌⧊ࢆ
ᅗ 1 ࡟♧ࡍࠋ⵹ຍᕤࢆ⾜ࢃࡎ࡟ FSPP ࢆ⾜ࡗࡓヨᩱࡢ᭱㧗◳ࡉࡣ HV280 ⛬ᗘ࡟␃ࡲࡗࡓࡀࠊᖹࢶ࣮ࣝ࡟ࡼࡿ⵹
ᙧᡂᚋ࡟ FSPP ࢆ⾜ࡗࡓヨᩱ࡟ࡘ࠸࡚ࡣྜ㔠୰࡬ࡢ SiC ࡢῧຍ㔞ࡀቑຍࡍࡿࡇ࡜࡟ࡼࡾࠊ᭱㧗◳ࡉࡀẕᮦ㒊ࡢ⣙
2.5 ಸࡢ HV505 ࡲ࡛኱ࡁࡃୖ᪼ࡋࡓࠋ
FSPP ࢆ⾜ࡗࡓヨᩱࡢ X ⥺ᅇᢡ⤖ᯝࢆᅗ 2 ࡟♧ࡍࠋ๓ฎ⌮㸦⵹ຍᕤ㸧ࡢ᭷↓࡟࠿࠿ࢃࡽࡎࠊFSPP ࡟ࡼࡾᙧᡂ
ࡉࢀࡓ⾲㠃」ྜ໬㡿ᇦ࡟ࡣࠊSiC ⢏Ꮚ௨እ࡟࣌ࣟࣈࢫ࢝࢖ࢺᆺࡢ୕ඖ⣔Ⅳ໬≀㸦Fe3AlCx㸧ࡀᏑᅾࡍࡿࡇ࡜ࡀ᫂
ࡽ࠿࡜࡞ࡗࡓࠋࡲࡓࠊ๓ฎ⌮㸦⁁ຍᕤ㸧ࢆ⾜ࡗࡓヨᩱ࠿ࡽࡣࠊࣇ࢙ࣛ࢖ࢺ┦࡜ඹ࡟࣮࢜ࢫࢸࢼ࢖ࢺ┦ࡢᏑᅾࢆ♧ࡍࣆ࣮ࢡࡀ᳨ฟࡉࢀࡓࠋࡇࢀࡽࡢ⤖ᯝ࠿ࡽࠊእ㒊࠿ࡽ౪⤥ࡉࢀࡓ SiC ⢏Ꮚࡢ୍㒊ࡣẕᮦ࡜཯ᛂࡋࠊ㐟㞳ࡋࡓ C ࡀẕᮦ࡟ᅛ⁐ࡋࠊ࣌ࣟࣈࢫ࢝࢖ࢺᆺࡢ୕ඖ⣔Ⅳ໬≀ Fe3AlCx ࡀᙧᡂࡉࢀࡓࡶࡢ࡜⪃࠼ࡽࢀࡿࠋࡲࡓࠊ๓ฎ⌮ࢆ⾜ࡗࡓヨᩱࡢᵝ࡟ SiC ࡀከ㔞࡟ῧຍࡉࢀࡓሙྜ࡟ࡣࠊẕᮦ୰࡬ࡢ C ࡢᅛ⁐㔞ࡶቑຍࡍࡿࡇ࡜࡟࡞ࡾࠊᒁᡤⓗ࡟࣮࢜ࢫࢸࢼ࢖ࢺ┦ࡀ⏕ᡂࡋࡓࡶࡢ࡜⪃࠼ࡽࢀࡿࠋ
ࡲࡓࠊSEM- EDS ࡟ࡼࡿඖ⣲࣐ࢵࣆࣥࢢࢆ⾜ࡗࡓ⤖ᯝ࡛ࡣࠊ⁁ຍᕤࢆ⾜ࡗࡓヨᩱࡢ᪉ࡀ Fe3AlCx ࡀከ㔞࡟ᯒฟࡋ࡚࠸ࡿ≧ἣࡀほᐹ࡛ࡁࡿࡇ࡜࠿ࡽࠊࡇࢀࡽࡢⅣ໬≀ࡢᯒฟࡀ」ྜ໬㡿ᇦ࡟࠾ࡅࡿ◳ࡉࡢୖ᪼࡟኱ࡁࡃᐤ୚ࡋ
࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ
4. ⤖ㄽᦶ᧿ᨩᢾ࡟ࡼࡿረᛶὶືࢆ฼⏝ࡋ࡚ࠊⅣ໬≀⢏Ꮚ㸦SiC㸧ࢆ Fe-7mass%Al ྜ㔠࡟」ྜ໬ࡍࡿᡭἲࢆ᳨ウࡋࡓࠋᮏྜ㔠ࡣ⪏⇕ᛶࠊ㍍㔞ᛶࠊไ᣺ᛶ➼࡟ඃࢀ࡚࠸ࡿࡶࡢࡢࠊ↝ࡁධࢀ࡟ࡼࡿ⾲㠃◳໬ࡀ࡛ࡁ࡞࠸ࡇ࡜ࡀ

− 173 −

ᐇ⏝ୖࡢၥ㢟Ⅼ࡜࡞ࡗ࡚࠸ࡿࡀࠊࡇࡢࡼ࠺࡞ᮦᩱ࡟ᑐࡋ࡚ࡶ FSPP ࡟ࡼࡾ◳㉁⢏Ꮚ࡜ࡢ」ྜ໬ࢆᅗࡿࡇ࡜࡛ࠊ
⾲㠃ࡢ㧗◳ᗘ໬ࢆ㐩ᡂ࡛ࡁࡿྍ⬟ᛶࡀ♧ࡉࢀࡓࠋᅗ㸯 FSPP ࢆ⾜ࡗࡓ Fe-7mass%Al ࡢ῝ࡉ᪉ྥ◳ࡉศᕸ࡜㔠ᒓ⤌⧊

: D-ferrite Fe: Perovskite carbide Fe3AlC0.69: J-austenite Fe: Silicon Carbide SiC

Intensity (a.u.)⵹᭷䜚䛷䠢䠯䠬䠬䜢⾜䛺䛳䛯ሙྜ㻌⵹↓䛧䛷䠢䠯䠬䠬䜢⾜䛺䛳䛯ሙྜ㻌

30

40

50

60

70

80

90

100

2T / 㼻
ᅗ㸰 FSPP ࢆ⾜ࡗࡓ Fe-7mass%Al ࡟ᙧᡂࡉࢀࡓ」ྜ໬㡿ᇦࡢ㹖⥺ᅇᢡ⤖ᯝ㸦Cu-KȘ,40kV-50mA㸧㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 174 −

㠀㕲ᮦᩱࡢᦶ᧿ᨩᢾ᥋ྜ㸦FSW㸧࡜⥅ᡭࡢᶵ⬟ホ౯㸦␗ᮦ᥋ྜ⥅ᡭᮦࡢ⾲㠃ᨵ㉁ฎ⌮࡟ࡼࡿ⑂ປ≉ᛶᨵၿ㸧Ἀ⦖ᕤᴗ㧗➼ᑓ㛛Ꮫᰯ ᶵᲔࢩࢫࢸ࣒ᕤᏛ⛉ᨻᮌΎᏕ┠ⓗ
 )6:⥅ᡭᮦࢆᶵᲔᵓ㐀㒊ᮦ࡜ࡋ࡚౑⏝ࡍࡿሙྜ㸪⥅ᡭ࡟ࡣ᣺ື࡞࡝࡟ࡼࡿ⧞㏉ࡋ㈇Ⲵࡀ⏕ࡌࡿࡓࡵ㸪⑂ປ≉ᛶࡢホ౯ࡀ୙ྍḞ࡛࠶ࡿ㸬ࡲࡓ㸪⑂ປ࡟ࡼࡿ◚ቯࡣ᥋ྜ㒊࡛⏕ࡌࡿࡇ࡜ࡀከࡃ㸪ᶵჾࡢಙ㢗ᛶࢆྥୖࡉࡏࡿୖ࡛ࡶ㸪᥋ྜ㒊ࡢᙉᗘᨵၿࡀ㔜せ࡜࡞ࡿ㸬ࡇࢀࡲ࡛ࡢ◊✲࡛ࡣ㸪$࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢ)6:᥋ྜᮦ࡟࣮ࣞࢨࣆ࣮ࢽࣥࢢ࠾ࡼࡧࢩࣙࢵࢺࣆ࣮ࢽࣥࢢࢆ㐺⏝ࡋ㸪ᖹ㠃᭤ࡆ⑂ປ≉ᛶࡢᨵၿຠᯝ࡟ࡘ࠸࡚ㄪᰝࢆ
⾜ࡗ࡚ࡁࡓ  㸬ࡲࡓ㸪)6:⥅ᡭࡢ⑂ປࡁ⿣㐍ᒎ≉ᛶࡣ㸪᥋ྜ᫬࡟⏕ࡌࡓᨩᢾ㒊㸦6=㸧㸪⇕ຍᕤᙳ㡪㒊㸦70$=㸧㸪
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◊✲ࢆ⾜ࡗ࡚ࡁࡓ  㸬ᮏᖺᗘࡣ㸪$$ࡢ␗ᮦ)6:⥅ᡭᮦࡢࣆ࣮ࢽࣥࢢฎ⌮࡟ࡼࡿ⑂ປ≉ᛶᨵၿࢆ᳨ウࡍࡿ࡟࠶ࡓࡾ㸪ᚲせ࡜࡞ࡿᇶ♏ⓗ࡞⑂ປࢹ࣮ࢱࢆྲྀᚓࡍࡿ㸬ᐇ㦂᪉ἲ
౪ヨᮦ࠾ࡼࡧ⑂ປヨ㦂∦ ౪ヨᮦࡣ㸪ᕷ㈍ࡢ$O0J6L⣔࢔࣑ࣝࢽ࣒࢘ྜ㔠$㸦7ฎ⌮ᮦ㸧࡜㸪$O&X⣔࢔࣑ࣝࢽ࣒࢘ྜ㔠$㸦7ฎ⌮ᮦ㸧࡛࠶ࡿ㸬࡜ࡶ࡟ཌࡉࡣPP࡛࠶ࡿ㸬୧⪅ࡢ⪏ຊࡣ࡯ࡰྠ➼࡛⣙03D࡛࠶ࡗࡓ㸬)6:᥋ྜ࡟ࡣỗ⏝ࣇࣛ࢖ࢫࢆ౑⏝ࡋ㸪ࢶ࣮ࣝᅇ㌿ᩘUSP㸪๓㐍ゅᗘ㸪㏦ࡾ㏿ᗘPPPLQࡢ᮲௳࡛௜ࡁྜࢃࡏ
᥋ྜࡋࡓ㸬ࢶ࣮ࣝࡣ㸪6.'ࢆ⣲ᮦ࡜ࡋ㸪ࢩࣙࣝࢲ࣮┤ᚄȭPP㸪ඛ➃࡟0ࡢ㏫ࢿࢪࡀษࡽࢀࡓ㛗ࡉPPࡢ
ࣆࣥࢆ᭷ࡍࡿᙧ≧࡛࠶ࡿ㸬ࢶ࣮ࣝࡢᦶ⪖ࢆ㜵Ṇࡍࡿࡓࡵ㸪ࣉࣛࢬ࣐❅໬ฎ⌮࡟ࡼࡿ⾲㠃ฎ⌮ࢆ᪋ࡋࡓ㸬᥋ྜࡢ㝿࡟ࡣ㸪$ࡀ๓㐍ഃ㸦$GYDQFLQJVLGH㸧㸪$ࡀᚋ㐍ഃ㸦5HWUHDWLQJVLGH㸧࡜࡞ࡿࡼ࠺࡟㓄⨨ࡋࡓ㸬ࡇࡢ␗ᮦ)6:⥅ᡭ࠿ࡽ㸪᥋ྜ୰ᚰࡀ⑂ປヨ㦂∦ࡢ୰ኸ࡜࡞ࡿࡼ࠺࡟ᅗࡢᙧ≧࡟࣡࢖ࣖᨺ㟁ຍᕤ࡟ࡼࡾ᥇ྲྀࡋ㸪ヨ㦂∦⾲㠃࠾ࡼࡧ⿬㠃ࡢࢶ࣮ࣝ㉮ᰝ⑞ࢆࡑࢀࡒࢀPP⛬ᗘࣇࣛ࢖ࢫຍᕤ࡟ࡼࡗ࡚㝖ཤࡋࡓ㸬ࡑࡢᚋ㸪࢚࣓ࣜ◊☻࠾ࡼࡧࣂࣇ◊☻࡟ࡼࡗ࡚㙾㠃௙ୖࡆ࡜ࡋࡓ㸬ࡲࡓ㸪ẚ㍑ࡢࡓࡵ࡟ྠ୍ᙧ≧࡟ຍᕤࡋ࡚
㙾㠃௙ୖࡆࢆ᪋ࡋࡓ㸪$࡜$ࡢẕᮦ࡟ࡘ࠸࡚ࡶ⑂ປヨ㦂ࢆᐇ᪋ࡋࡓ㸬⑂ປヨ㦂 ⑂ປヨ㦂ࡣᅗ࡟♧ࡍᮾி⾮ᶵ〇ࡢᖹ㠃᭤ࡆ⑂ປヨ㦂ᶵ㸦3%);㸧ࢆ౑⏝ࡋ㸪ᛂຊẚ5 㸪ᐊ ኱Ẽ୰㸪㈇Ⲵ⧞ࡾ㏉ࡋ㏿ᗘ+]㸪ኚ఩ไᚚࡢ᮲௳࡛⾜ࡗࡓ㸬ࡲࡓ㸪ࡁ⿣Ⓨ⏕㉳Ⅼ఩⨨ࢆ≉ᐃࡍࡿࡓࡵ㸪ᐇయ㢧ᚤ㙾࠾ࡼࡧ㟁Ꮚ㢧ᚤ㙾ࢆ⏝࠸࡚⑂ປ◚㠃ࡢほᐹࢆ⾜ࡗࡓ㸬ࡲࡓ㸪⤌⧊◳ࡉ࡜ࡁ⿣Ⓨ⏕⟠ᡤࡢ┦㛵ᛶࢆㄪ࡭ࡿࡓࡵ㸪᥋ྜ㒊᩿㠃ࡢࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂ࢆᐇ᪋ࡋࡓ㸬
ᴾᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ⑂ປヨ㦂⤖ᯝ ⑂ປヨ㦂࡟ࡼࡾᚓࡽࢀࡓ61᭤⥺ࢆᅗ࡟♧ࡍ㸬$$)6:ᮦࡢ⑂ປ≉ᛶࡣ㸪඲యⓗ࡟ẕᮦࡢ$㸦%0$㸧࡟ᚑ࠺ഴྥ࡟࠶ࡿ㸬ࡓࡔࡋ㸪03D௨ୖࡢ㧗ᛂຊᇦ࡛ࡣ㸪$$)6:ᮦࡢ⑂ປᑑ࿨ࡀ
▷ᑑ࿨࡜࡞ࡗ࡚࠸ࡓ㸬ᅇࡢ⑂ປᙉᗘࢆ⑂ປ㝈ᗘ࡜ࡍࡿ࡜㸪ẕᮦࡢ$㸦%0$㸧࡛⣙03D㸪ẕᮦᴾ
ᴾ
Welding center
ᴾ
Advancing side
Retreating side
ᴾ
ᴾ
A6061-T6
A2024-T351
ᴾ
ᴾ
ᴾ
ᴾ
ᴾ
ᅗ ⑂ປヨ㦂∦ᙧ≧               ᅗ ᖹ㠃᭤ࡆ⑂ປヨ㦂ᶵᴾ− 175 −

ࡢ$㸦%0$㸧࡛⣙03D࡜࡞ࡗࡓࡢ࡟ᑐࡋ㸪$$)6:ᮦࡣ%0$ࡼࡾࡶഹ࠿࡟ప࠸03D⛬ᗘ࡜࡞ࡗࡓ㸬⑂ປ㈇Ⲵᛂຊ᣺ᖜࡀྠ➼࡟ࡶ࠿࠿ࢃࡽࡎ㸪⑂ປᑑ࿨࡟኱ࡁࡃᕪࡀ⏕ࡌࡓ%0$ᮦ࡜
$$)6:ᮦࡢ⑂ປ◚㠃ࢆᅗ࡟♧ࡍ㸬)6:᥋ྜᮦ࡟ࡘ࠸࡚ࡣ㸪ୖഃࡀ᥋ྜᮦ⾲ഃ࡜࡞ࡗ࡚࠸ࡿ㸬୧⪅ࡢࡁ⿣Ⓨ⏕ᩘࢆẚ㍑ࡍࡿ࡜㸪᫂ࡽ࠿࡟$$)6:ᮦࡢ࡯࠺ࡀከ࠸㸬ࡍ࡞ࢃࡕ㸪)6:᥋ྜᮦࡢ⑂ປᑑ
࿨▷ᑑ࿨໬ࡣ㸪ከᩘࡢ⑂ປࡁ⿣ࡀⓎ⏕ࡋ࡚ྜయ࣭㐍ᒎࢆ⧞ࡾ㏉ࡍࡇ࡜ࡀ୺せᅉ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡁ⿣Ⓨ⏕఩⨨࡜⤌⧊◳ࡉ◚᩿఩⨨࡟ࡘ࠸࡚ㄪᰝࡋࡓ࡜ࡇࢁ㸪$$)6:ᮦࡢ◚᩿ヨ㦂∦ࡢእほ౛ࢆᅗ࡟♧ࡍࡼ࠺࡟㸪᭱ᑠ᩿㠃㒊ࡢ᥋ྜ୰ᚰࡼࡾࡶ$ഃ࡟PP⛬ᗘࡎࢀࡓ఩⨨࡜࡞ࡗࡓ㸬ࡇࡢ఩⨨ࡣ㸪᥋ྜ㒊ࡢ6=㡿ᇦ࡜ẕᮦࡢ୰㛫఩⨨࡛࠶ࡿ㸬ࡇࡢ⌮⏤ࡣ㸪᥋ྜ୰ᚰ࡛ࡣືⓗ෌⤖ᬗ⌧㇟࡟ࡼࡿ⤖ᬗ⢏ᚤ⣽໬ࡀ⏕ࡌ࡚ᙉᗘࡀቑຍࡍࡿ୍
᪉࡛㸪ẕᮦഃࡢ᥋ྜ㒊㏆ഐ࡛ࡣ⇕ᙳ㡪࡟ࡼࡾᙉᗘࡀపୗࡋࡓࡓࡵ࡜⪃࠼ࡽࢀࡿ  㸬ࡑࡇ࡛㸪ࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂ᶵࢆ⏝࠸࡚㸪$$)6:ᮦࡢ᥋ྜ㒊㏆ഐ᩿㠃ࡢ㸪⤌⧊◳ࡉศᕸࢆㄪᰝࡋࡓ㸬 ᐃ㛫㝸ࡣ㸪ᖜ᪉ྥ㸸PP㸦ࢶ࣮ࣝ᥋ゐ㒊࡟࠾࠸࡚ࡣPP㸧㸪ཌࡉ᪉ྥ㸸PP࡜ࡋࡓ㸬ᚓࡽࢀࡓ◳ࡉศᕸࢆᅗ࡟♧ࡍ㸬
%0$㸪%0$ࡢࣅࢵ࣮࢝ࢫ◳ࡉࡣࡑࢀࡒࢀ⣙+9㸪⣙+9࡛࠶ࡗࡓ㸬᥋ྜ୰ᚰ௜㏆࡟ὀ┠ࡍࡿ࡜㸪᥋ྜ୰ᚰ࠿ࡽ$ഃࡢ㡿ᇦ࡛ࡣ㸪㢧ⴭ࡞◳ࡉࡢపୗࡀㄆࡵࡽࢀࡿ㸬ࡑࡢ᭱ᙅ㒊ࡣ+9⛬ᗘ࡛࠶ࡾ㸪᭱ᙅ㒊఩⨨ࡀ◚᩿఩⨨࡜ࡼࡃᑐᛂࡋ࡚࠸ࡿ㸬᥋ྜ୰ᚰ௜㏆࡛⏕ࡌࡿ⤌⧊◳ࡉࡢపୗࡣ㸪ᯒฟᙉ໬ᆺ$Oྜ㔠ࡢ)6:⥅ᡭ࡟ぢࡽࢀࡿ୍⯡ⓗ࡞ഴྥ࡛࠶ࡾ㸪᧠ᢾ᫬ࡢධ⇕࠾ࡼࡧረᛶὶື࡟ࡼࡿᯒฟ≀ࡢ෌ᅛ⁐ࡸ㌿఩ᐦᗘࡢప
ୗ࡜⪃࠼ࡽࢀࡿ  㸬⤖ㄽ
 $$)6:ᮦࡢᅇࡢ⑂ປᙉᗘࡣ㸪ẕᮦࡢ$ᮦࡢ್࡜ྠ➼࡛࠶ࡗࡓ㸬 $$)6:ᮦࡢ⑂ປᑑ࿨ࡣ㸪ẕᮦࡢ$ᮦ࡟ẚ࡭࡚▷ᑑ࿨໬ࡍࡿ㸬ࡇࡢ⌮⏤ࡢ୍ࡘࡣ㸪ከᩘ
ࡢࡁ⿣ࡀⓎ⏕ࡋ㸪ྜయࡍࡿࡇ࡜ࡀ୺せᅉ࡛࠶ࡿ㸬 $$)6:ᮦࡢ◚᩿఩⨨ࡣ᥋ྜ୰ᚰ࠿ࡽ$ഃ࡬㹼PP⛬ᗘࢩࣇࢺࡋࡓሙᡤ࡛࠶ࡾ㸪ࡇࡢ఩⨨ࡣࣅࢵ࣮࢝ࢫ◳ࡉࡀ᭱ప࡜࡞ࡿሙᡤ࡜୍⮴ࡍࡿ㸬ཧ⪃ᩥ⊩ ᨻᮌΎᏕ㸸኱㜰኱Ꮫ᥋ྜ⛉Ꮫඹྠ฼⏝࣭ඹྠ◊✲ᣐⅬඹྠ◊✲ሗ࿌᭩   ᨻᮌΎᏕす㖭୍㈗బ㔝㞝஧Ლཎሀኴ㑻᪥ᮏᶵᲔᏛ఍ᖺᗘᖺḟ኱఍ㅮ₇ㄽᩥ㞟㸪1R  * ᨻᮌΎᏕ㸸኱㜰኱Ꮫ᥋ྜ⛉Ꮫඹྠ฼⏝࣭ඹྠ◊✲ᣐⅬඹྠ◊✲ሗ࿌᭩   㧗ᶫṇモຍ⸨ᩘⰋ᫬ᮎග㍍㔠ᒓYRO  1RSS ᳜ᯇ⨾ᙪ㸪ᡞᲚ᝴㑻㸪ᡞᓮᗣᡂ㸪ᰘ⏣⚽᫂⁐᥋Ꮫ఍ㄽᩥ㞟YRO  1RSS

300
Stress amplitude Va [MPa]













BM-A2024
BM-A6061
A2024/A6061-FSW

250
200

(a) BM-A6061 (ǔa=180MPa㸪Nf=2.6×105 cycle)

150
100

104

105

106

107

108

(b) A2024/A6061-FSW (ǔa=174MPa㸪Nf=6.93×104 cycle)

Number of cycles to failure Nf [cycle]  ᅗ ⑂ປヨ㦂⤖ᯝ         ᅗ ⑂ປ◚㠃ࡢ࣐ࢡࣟほᐹ⤖ᯝCenter
A6061
A2024


A2024
A6061


10mm
60Hv
155Hv

       ᅗ ⑂ປ◚᩿఩⨨               ᅗ ヨ㦂∦᩿㠃ࡢ◳ࡉ ᐃ⤖ᯝ    㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 176 −

ᦶ᧿ᨩᢾ᥋ྜ࡟ࡼࡾస〇ࡉࢀࡓ Ti ྜ㔠᥋ྜᮦࡢᚤ⣽⤌⧊࠾ࡼࡧ⑂ປᙉᗘホ౯㱟㇂኱Ꮫ ⌮ᕤᏛ㒊᳃ ṇ࿴1. ┠ⓗᦶ᧿ᨩᢾ᥋ྜ(FSW)ࡣ㸪ᦶ᧿⇕࡜ረᛶὶືࢆ฼⏝ࡋࡓ᥋ྜᢏ⾡࡛࠶ࡿ㸬᥋ྜ ᗘࡀ᥋ྜᮦࡢ⼥Ⅼ࡟㐩ࡋ࡞࠸ᅛ┦᥋ྜ࡛࠶ࡿࡓࡵ㸪⼥Ⅼࡢ␗࡞ࡿ␗✀ᮦᩱࡢ᥋ྜ࡟᭷ຠ࡞ᢏ⾡࡛࠶ࡿ㸬㌴యࡢ㍍㔞໬┠ⓗ࡜ࡋࡓ␗✀ᮦᩱ᥋ྜ࡬ࡢᛂ
⏝ࢆᅗࡿࡓࡵ㸪ᮏᢏ⾡࡟㛵ࡍࡿ◊✲㛤Ⓨࡀ⾜ࢃࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪≉࡟㍍㔠ᒓࢆᑐ㇟࡜ࡋࡓ␗✀ᮦᩱࡢ᥋ྜయస〇࡟㛵ࡍࡿ▱ぢࡣ༑ศ࡛ࡣ࡞࠸㸬ᮏ◊✲࡛ࡣ㸪FSW ࡟ࡼࡿ㍍㔠ᒓࡢ␗✀ᮦᩱ᥋ྜࢆ⾜࠺ࡓࡵࡢᇶ♏ⓗ▱ぢࢆᚓࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚㸪A7075 ࢆ⏝࠸ࡓ᥋ྜᐇ㦂ࢆ⾜࠸㸪᥋ྜ᮲௳ࢆ᳨ウࡋࡓ㸬
2. ᐇ㦂᪉ἲ ᥋ྜᐇ㦂ࡣ㜰኱᥋ྜ◊ᡤ᭷ࡢ FSW ⿦⨨࡟࡚ᐇ᪋ࡋࡓ㸬౑⏝ࢶ࣮ࣝࡣ㸪㉸◳ྜ㔠ࢶ࣮ࣝ(ࢩࣙࣝࢲ࣮ᚄȭ15mm㸪
ࣉ࣮ࣟࣈᚄȭ6mm㸪ࣉ࣮ࣟࣈ㛗 3.8mm)࡛࠶ࡿ㸬౪ヨᮦᩱࡣ A7075 ࠾ࡼࡧ AZ31(࠸ࡎࢀࡶᯈཌ 5mm)࡛࠶ࡿ㸬᥋ྜ᮲௳ࡣᅇ㌿ᩘ 300-1500rpm㸪᥋ྜ㏿ᗘ 25-100mm/min㸪౵ධ῝ࡉ 3.5-3.9mm ࡜ࡋࡓ㸬⤌⧊ほᐹࡣ SEM ⿦⨨࡟࡚㸪◳ᗘヨ㦂ࡣࣅࢵ࣮࢝ࢫ◳ᗘヨ㦂ᶵ࡟࡚⾜ࡗࡓ㸬
3. ᐇ㦂⤖ᯝ ྛ✀᥋ྜ᮲௳࡟࠾ࡅࡿ A7075 ᥋ྜᐇ㦂ࡢ⤖ᯝࢆ⾲ 3.1 ࡟♧ࡍ㸬᥋ྜ᮲௳ 1㸪2 ࡢࡼ࠺࡟㸪᥋ྜ㏿ᗘࢆ㐜ࡃࡍࡿ࡜⥅ᡭ㒊⾲㠃ࡢ⁁≧Ḟ㝗ࡢᖜࡀᑠࡉࡃ࡞ࡗࡓ㸬᥋ྜ᮲௳ 2㸪3 ࡢࡼ࠺࡟㸪ᅇ㌿ᩘࢆ㏿ࡃࡍࡿࡇ࡜࡛㸪⥅ᡭ㒊⾲㠃ࡢḞ㝗ࡢ≧ែࡣᨵၿࡋࡓࡀ㸪ࣂࣜࡀከࡃⓎ⏕ࡋࡓ㸬Ḟ㝗ࡀ⏕ࡌࡓཎᅉࡣ㸪ࢶ࣮ࣝ࡟ࡼࡿධ⇕ࡀᑠࡉ࠸ࡓࡵ࡟᥋ྜ㔠ᒓࡢ⢓ᛶࡀ㧗ࡃ㸪᧠ᢾ୙㊊࡟ࡼࡗ࡚Ⓨ⏕ࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ධ⇕㔞ࢆ኱ࡁࡃࡍࡿ࡜᥋ྜ≧ែࡣᨵၿࡍࡿࡀ㸪ධ⇕㔞ࢆ኱ࡁࡃࡋࡍࡂࡿ࡜ࣂࣜࡢⓎ⏕ࡀከࡃ࡞ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬✀ࠎࡢ A7075 ᥋ྜᐇ㦂ࡢ⤖ᯝࡼࡾ㸪ᅇ㌿ᩘ 1000rpm㸪
᥋ྜ㏿ᗘ 50mm/min㸪౵ධ῝ࡉ 3.8mm ࡢ᥋ྜ᮲௳࡟࠾࠸࡚㸪Ḟ㝗ࡀ࡞ࡃ㸪ࣂࣜࡢ࡯࡜ࢇ࡝࡞࠸᥋ྜయࡀᚓࡽࢀࡿࡇ
࡜ࡀࢃ࠿ࡗࡓ㸬ᅗ 1 ࡟᥋ྜ㒊ࡢ◳ᗘኚ໬ࡢ⤖ᯝࢆ♧ࡍ㸬ẕᮦ㒊ࡢ◳ᗘࡣ 144Hv ࡛࠶ࡾ㸪⇕ᙳ㡪㒊࡟㏆࡙ࡃ࡟ࡘࢀ࡚◳ᗘపୗࡋ㸪
100Hv ࡲ࡛పୗࡋࡓ㸬ࡋ࠿ࡋ㸪᧠ᢾ㒊࡛ࡣẕᮦ㒊࡜ྠ➼ࡢ◳ᗘࡲ࡛ୖ᪼ࡋࡓ㸬⇕ᙳ㡪㒊࡛ࡢ◳ᗘపୗࡋࡓཎᅉࡣ㸪ࢶ࣮ࣝ࡟ࡼࡿᦶ᧿⇕࡟ࡼࡾ A7075 ୰ࡢᯒฟ≀ࡀ⁐ゎࡍࡿࡇ࡜࡛◳ᗘࡀపୗࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬⾲ 1 ྛ✀᥋ྜ᮲௳࡟࠾ࡅࡿ A7075 ᥋ྜᐇ㦂ࡢ⤖ᯝᅇ㌿ᩘ 800rpm
1

᥋ྜ㏿ᗘ 300mm/min౵ධ῝ࡉ 3.8mm
ᅇ㌿ᩘ 800rpm

2᥋ྜ㏿ᗘ 50mm/min౵ධ῝ࡉ 3.8mm
ᅇ㌿ᩘ 1100rpm

3᥋ྜ㏿ᗘ 50mm/min౵ධ῝ࡉ 3.8mm

㻌− 177 −

ᅗ 1 ᥋ྜ㒊࡟࠾ࡅࡿࣅࢵ࣮࢝ࢫ◳ᗘ ᐃ⤖ᯝ
3.3 A7075 ᥋ྜయࡢ⤌⧊ほᐹ᥋ྜయ᩿㠃ࢆ㙾㠃◊☻ࡋ㸪⭉㣗ฎ⌮ࢆ⾜ࡗࡓᚋࡢ㸪SEM ほᐹࢆ⾜ࡗࡓ⤖ᯝࢆᅗ 2 ࡟♧ࡍ㸬(a)࡟ẚ࡭࡚㸪(b)ࡢ⤖ᬗ⢏ࡀᚤ⣽࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬࡞࠾㸪(b)ࡢ⤖ᬗ⢏ࢧ࢖ࢬࡣ㸪(a)ࡢ⣙ 11%࡛࠶ࡗࡓ㸬ࡇࢀࡣࢶ࣮ࣝ࡟ࡼࡿ᧠ᢾ࡟
ࡼࡗ࡚⤖ᬗ⢏ࡀᚤ⣽໬ࡉࢀࡓࡓࡵ࡛࠶ࡿ㸬ࡼࡗ࡚㸪᧠ᢾ㒊࡛ࡢ◳ᗘୖ᪼ࡣ㸪ࢶ࣮ࣝ࡟ࡼࡿ⤖ᬗ⢏ࡢᚤ⣽໬ࡀཎᅉ࡜
⪃࠼ࡽࢀࡿ㸬

ᅗ 2 ᥋ྜ㒊᩿㠃ࡢ SEM ほᐹ⤖ᯝ4㸬 ⤖ゝ ྛ✀᥋ྜ᮲௳࡟࠾ࡅࡿ A7075 ᥋ྜᐇ㦂ࡼࡾ㸪ᅇ㌿ᩘ 1000rpm㸪᥋ྜ㏿ᗘ 50mm/min㸪౵ධ῝ࡉ 3.8mm ࡛Ḟ㝗ࡀ࡞ࡃ㸪ࣂࣜࡢ࡯࡜ࢇ࡝࡞࠸᥋ྜయࡀᚓࡽࢀࡓ㸬ࡲࡓ㸪ᅗ 2 ࡢ SEM ⏬ീࡼࡾ㸪⤖ᬗ⢏ࡀᚤ⣽໬ࡉࢀ࡚࠸ࡿࡇ࡜࠿ࡽ㸪
FSW ࢆ⏝࠸ࡓ A7075 ᥋ྜయ࡟࠾࠸࡚ࡢ◳ᗘపୗࡣᑠࡉ࠸ࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ㸬㸦ඹྠ◊✲ศ㔝㸸ᶵ⬟ᛶデ᩿Ꮫศ㔝㸧− 178 − ࣮ࣞࢨ࣮ຍᕤ᫬࡟࠾ࡅࡿⅣ⣲⧄⥔ᙉ໬ࣉࣛࢫࢳࢵࢡࡢ
⇕ⓗ⌧㇟࡟㛵ࡍࡿᩘ್ゎᯒᮾிᕤ⛉኱Ꮫ ኱ஂಖ཭㞞

1. ࡣࡌࡵ࡟
Ⅳ ⣲ ⧄ ⥔ ᙉ ໬ ࣉ ࣛ ࢫ ࢳ ࢵ ࢡ (Carbon Fiber
Reinforced Plastic=CFRP)ࡣẚᙉᗘࡀ㧗ࡃ㸪⮬ື㌴ࡢ࣎ࢹ࢕➼࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬ࡲࡓࡑࡢຍᕤᛶ
ࡢపࡉ࠿ࡽ㸪ຍᕤ᪉ἲ࡜ࡋ࡚࣮ࣞࢨ࣮ຍᕤࡀὀ┠ࡉࢀ࡚࠸ࡿ㸬CFRP ࢆ࣮ࣞࢨ࣮ษ᩿ࡋࡓሙྜ㸪⇕ⓗ࡞ᙳ㡪࡟ࡼࡾᶞ⬡ࡀ㝖ཤࡉࢀ㸪Ⅳ⣲⧄⥔ࡀࡴࡁฟࡋ࡟࡞ࡿ
㡿ᇦ(Heat Affected Zone=HAZ)ࡀᙧᡂࡉࢀࡿ஦ࡀၥ
㢟࡜࡞ࡿ㸬ࡇࡢ HAZ ࡟ࡘ࠸࡚㸪ᐇ㦂࡟ࡼࡿほᐹ➼ࡣⰍࠎ࡜࡞ࡉࢀ࡚࠸ࡿࡀ㸪ࡑࡢ≀⌮ⓗヲ⣽࡟㋃ࡳ㎸ࢇࡔ
㆟ㄽࡣᮍࡔ୙༑ศ࡛࠶ࡿ㸬ࡇࢀࡣ CFRP ࡀ」ྜᮦᩱ
࡛࠶ࡿ஦࡟୍ࡘࡢཎᅉࡀ࠶ࡿ㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ」ྜᮦᩱࡢࡑࢀࡒࢀࡢ⇕ఏᑟ⋡㸪ẚ⇕㸪྾཰ಀᩘ➼࡟ຍ࠼㸪ࡇࢀࡲ࡛⪃៖ࡉࢀ࡚᮶࡞࠿
ࡗࡓ஝⇱✵Ẽୗ࡟࠾ࡅࡿ㓟໬ࡢᙳ㡪ࢆ⪃៖ࡋࡓᩘ್
ィ⟬ࢆ⾜ࡗࡓ㸬

2. CFRP ࡢ஝⇱✵Ẽୗ࡛ࡢ⇞↝ᩘ್ィ⟬࡟⇞↝ࡢᙳ㡪ࢆධࢀࡿࡓࡵ࡟㸪ᓥὠ〇సᡤ〇ࡢ⇕ศᯒ⿦⨨ DTG-60 ࢆ⏝࠸࡚㸪CFRP ࡢ ᗘ࡟
ᑐࡍࡿ㉁㔞ኚ໬ཬࡧⓎ⇕㔞ࢆィ ࡋࡓ㸬ࡑࡢ⤖ᯝࢆᅗ
1 ࡟♧ࡍ㸬ᅗ࡟♧ࡉࢀࡿ㏻ࡾ㸪460Υ௜㏆࡛ᶞ⬡ࡀ⇞↝ࡋ㸪850Υ௜㏆࡛Ⅳ⣲⧄⥔ࡀ⇞↝ࡍࡿ஦ࡀࢃ࠿ࡗࡓ㸬ࡇࡇ࡛ߣǡ ܶǡ ܳሶǡ ߩǡ ‫ܥ‬ǡࡣࡑࢀࡒࢀྛ఩⨨࡟࠶ࡿᮦᩱ࡟࠾
ࡅࡿ⇕ఏᑟ⋡㸪 ᗘ㸪Ⓨ⇕ᐦᗘ㸪ᐦᗘ㸪ẚ⇕࡛࠶ࡿ㸬ࡇࢀࡽࡢᨭ㓄᪉⛬ᘧ࡟ᑐࡋ࡚᭷㝈ᕪศἲ࡟ࡼࡗ࡚ィ⟬ࢆ⾜ࡗࡓ㸬 ィ⟬㡿ᇦࡣ㸰ḟඖ┤஺ᗙᶆ⣔࡟ࡼࡾ⾲⌧ࡋ㸪Ⅳ⣲⧄⥔୍ᮏ࡜ࡑࡢᅇࡾࡢᶞ⬡࡟ࡘ࠸࡚ࡢィ⟬ࢆ⾜ࡗࡓ㸬ቃ⏺᮲௳ࡣ㸪ᶞ⬡ࡀ⧞ࡾ㏉ࡋྠࡌࡼ࠺࡟㓄⨨ࡉࢀ࡚࠸ࡿ
஦ࢆᶍᨃࡍࡿࡇ࡜㸪࣮ࣞࢨ࣮↷ᑕⅬ࡟ᑐࡋ࡚ᑐ⛠࡞⣔ࢆィ⟬ࡋ࡚࠸ࡿࡇ࡜㸪ィ⟬㡿ᇦ࡟༑ศ࡞㛗ࡉࢆྲྀࡗࡓ
ࡇ࡜࠿ࡽ㸪඲࿘ᅖࢆᑐ⛠ቃ⏺࡜ࡋࡓ㸬 Ⓨ⇕ᐦᗘ࡟ࡘ࠸࡚ࡣ㸪ྛ఩⨨࡟࠾ࡅࡿᮦᩱࡢ࣮ࣞࢨ
࣮࡟ᑐࡍࡿ྾཰ಀᩘࢆ⪃៖ࡋ࡚Ỵᐃࡋࡓ㸬ࡲࡓ㸪ྛᮦ
ᩱࡢ⵨Ⓨ࣭ศゎ ᗘ࡟฿㐩ࡍࡿ࡜≀㉁ࡀ㝖ཤࡉࢀࡿࡼ
࠺ࣔࢹࣝ໬ࡋࡓ㸬 ィ⟬⤖ᯝࢆᅗ 2 ࡟♧ࡍ㸬㯮ࡀ㝖ཤ㒊㸪ⷧ࠸⅊Ⰽࡀᶞ⬡㸪⃰࠸⅊ⰍࡀⅣ⣲⧄⥔࡛࠶ࡿ㸬Ⅳ⣲⧄⥔ࡼࡾࡶᶞ⬡ࡢ᪉ࡀዟࡲ࡛㝖ཤࡉࢀ࡚࠸ࡿⅬࡸ㸪Ⅳ⣲⧄⥔௜㏆ࡢᶞ⬡ࡀ❑ࢇ࡛࠸ࡿ஦㸪ࡉࡽ࡟Ⅳ⣲⧄⥔ࡢඛ➃ࡀ୸ࡲࡗ
࡚࠸ࡿⅬ➼㸪ᐇ㦂⤖ᯝ࡜ࡢᐃᛶⓗ୍⮴ࢆᚓࡓ㸬

ᅗ 2 ᩘ್ィ⟬࡟ࡼࡿ HAZ ᙧᡂࡢᵝᏊ4. ⤖ㄽ
ᅗ 1 CFRP ࡢ♧ᕪ⇕࣭⇕㔜㔞ྠ᫬ィ⤖ᯝ

3. ⇞↝ࡢᙳ㡪ࢆ⪃៖ࡋࡓᩘ್ィ⟬࣮ࣞࢨ࣮↷ᑕ᫬ࡢྛᮦᩱࡢ ᗘศᕸࡢ᫬㛫Ⓨᒎࢆィ⟬ࡋࡓ㸬ᨭ㓄᪉⛬ᘧࡣୗグࡢ㏻ࡾ࡛࠶ࡿ㸬߲ܶߩ‫ܥ‬ൌ ߣߘ ଶ ܶ ൅ ܳሶ߲‫ݐ‬

CFRP ࡟ࡘ࠸࡚♧ᕪ⇕࣭⇕㔜㔞ྠ᫬ィ ࢆ⾜࠸㸪ࡑࡢ⤖ᯝࢆ⏝࠸࡚࣮ࣞࢨ࣮ຍᕤ᫬࡟࠾ࡅࡿ HAZ ࡢᙧᡂ࡟ࡘ࠸࡚ࡢᩘ್ィ⟬ࢆ⾜ࡗࡓ㸬ࡑࡢ⤖ᯝ㸪ᵝࠎ࡞㠃࡛ᐇ㦂⤖ᯝ࡜ࡢᐃᛶⓗ୍⮴ࢆᚓࡓ㸬௨ୖࡢ஦࠿ࡽ㸪HAZ
࡟ࡘ࠸࡚㆟ㄽࡍࡿሙྜ࡟ࡣ㓟໬ࡢᙳ㡪ࢆ⪃៖ࡍ࡭ࡁ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝㸧− 179 −

▷ࣃࣝࢫ࣮ࣞࢨ࣮࡟ࡼࡿᮦᩱຍᕤࡢᇶ♏ⓗ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࠶ࡿࠋ㏆ᖺࡢ࣮ࣞࢨ࣮
⿦⨨ࡢ㐍ᒎ࡜ࡋ࡚ࡣࠊ▷Ἴ㛗໬࡜▷ࣃࣝࢫ໬ࡀ࠶ࡿࠋ▷Ἴ㛗໬࡟࠾࠸࡚ࡣࠊ⣸እࡉࡽ࡟ࡣ῝⣸እࠊ┿✵⣸እ㡿ᇦࡢἼ㛗࡛࣮ࣞࢨ࣮Ⓨ᣺ࡀᮇᚅࡉࢀࡿࠋ୍⯡࡟⣸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࡜࠿ࡽࠊ࣮ࣞࢨ
࣮↷ᑕ㒊㏆ഐࡢࡳ࡟ᒁᡤⓗ࡟࢚ࢿࣝࢠ࣮ࢆ㞟୰ࡉࡏࡿࡇ࡜ࡀ࡛ࡁࠊ
⇕ⓗ࡞ᙳ㡪ࡢᑡ࡞࠸ຍᕤࢆ᪋ࡍࡇ࡜ࡀྍ⬟࡛࠶ࡿࠋ ᐑᓮ኱Ꮫ࡟࠾࠸࡚ࡣࠊࡇࢀࡽࡢ≉㛗ࢆేࡏᣢࡘ▷Ἴ㛗࣭▷ࣃࣝࢫ࣮ࣞࢨ࣮ග※㸹┿✵⣸እ (VUV)ᇦ࡛࠶ࡿἼ㛗126 nm ࡟Ⓨ᣺⥺ࢆᣢࡕࠊࣃࣝࢫᖜࡀࢧࣈ ps ࡢࢥࣄ࣮ࣞࣥࢺග※ࡢ㛤Ⓨࢆ⾜ࡗ࡚࠸ࡿࠋࡉࡽ࡟ࠊ⮬ᕫ఩┦ኚㄪ࡟ࡼࡿᗈᖏᇦගࡢⓎ⏕ࢆ┠ᣦࡋ࡚ࠊVUV ᇦ࡟࠾ࡅࡿගࢹࣂ࢖ࢫࡢ㛤Ⓨ࡟╔ᡭࡋࡓࠋ ᮏඹྠ◊✲࡟࠾࠸࡚ࡣࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࡟ࡼࡿගࣉࣟࢭࢫ࡟࠾࠸࡚ࡢᇶ♏ⓗ࡞▱ぢࢆᚓࡿࡇ࡜࡜ࠊࣇ࢙࣒ࢺ
⛊ࣉࣟࢭࢫࢆ⏝࠸ࡓගࢹࣂ࢖ࢫస〇ᢏ⾡ࡢ㛤Ⓨࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ
ᮏᖺᗘࡣ᪂ࡓ࡟ࣇࢵ໬≀ᮦᩱࡢෆ㒊ຍᕤᢏ⾡ࡢ
㛤Ⓨ࡟㛵ࡍࡿᐇ㦂ࢆ㛤ጞࡋࡓࠋ㸰㸬㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ࣉࣟࢭࢫࡢ≉㛗− 180 −

ᅗ 1 㺪㺅㺵㺡㺼㺎㺔㺍㺪㺽࡟ࡼࡿ㺐㺓㺻㺒㺦㺷㺕㺼㺎 ᐃ

Ions velocity (m/s)

 ᅗ 1 ࡟ 2008 ᖺᗘ࡟ඹྠ◊✲࡜ࡋ࡚ᐇ᪋ࡋࡓࣇ࢓ࣛࢹ࣮
࢝ࢵࣉ࡟ࡼࡿ࢖࢜ࣥ㟁ὶࡢィ ࡢᴫせࢆ♧ࡍࠋᮏᐇ㦂࡟࠾࠸࡚ࠊ࢔ࣈ࣮ࣞࢩࣙࣥග※࡜ࡋ࡚ࡣࠊࣇ࢙࣒ࢺ⛊㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮㸦Ἴ㛗 800nm㸪ࣃࣝࢫ࢚ࢿࣝࢠ࣮ 0.5 mJ,ࣃࣝࢫᖜ 175 fs, 㞟ගᙉᗘ 6.0×1012 W/cm2㸧ࢆ⏝࠸ࡓࠋࡲࡓẚ㍑ࡢࡓࡵ࡟ࠊࢼࣀ⛊ KrF ࢚࢟ࢩ࣐࣮ࣞࢨ࣮㸦248 nm,
20 mJ, 15 ns, 2.3×108 W/cm2㸧ࢆ⏝࠸ࡓࠋࢱ࣮ࢤࢵࢺ࡟ࡣ
༙ᑟయ࣭㔠ᒓࢆ⏝࠸ࡓࠋࢱ࣮ࢤࢵࢺ࠿ࡽᨺฟࡉࢀࡓṇ࢖࢜ࣥࢆ㖡㟁ᴟ࡟⾪✺ࡉࡏࠊࡑࡢ㝿࡟ὶࢀࡿ࢖࢜ࣥ㟁ὶࡢ᫬㛫ኚ໬ࢆ ᐃࡋࠊ㣕⾜᫬㛫࡜㣕⾜㊥㞳࠿ࡽ࢖࢜ࣥࡢ࢚
ࢿࣝࢠ࣮ࢆ⟬ฟࡋࡓࠋ ࢖࢜ࣥ㟁ὶࡢ TOF Ἴᙧ࠿ࡽ࢖࢜ࣥࡢ㏿ᗘࢆ⟬ฟࡋࠊཎᏊ㔞࡟ࡼࡾࣉࣟࢵࢺࡋࡓࡶࡢࢆᅗ 2 ࡟♧ࡍࠋࡇࢀࡼࡾࠊ
ࢼࣀ⛊࡞ࡽࡧ࡟ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥඹ࡟ࠊ
㏿ᗘࡀ 104 m/s ࣮࢜ࢲ࣮࡛ཎᏊ㔞࡟౫Ꮡࡍࡿ㏿ᗘᡂศࡀ࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡲࡓࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࡟ẚ࡭࡚࣮ࣞࢨ࣮࢚ࢿࣝࢠ࣮ࡢ㧗࠸ࢼࣀ⛊࣮ࣞࢨ࣮ࡢ᪉ࡀࠊ࢖
࢜ࣥࡢ㏿ᗘࡀ㧗ࡃࠊཎᏊ㔞࡟ᑐࡋ࡚ῶᑡࡍࡿഴࡁ࡟ࡶ㐪࠸ࡀ࡞࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋࡲࡓࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࡟
࠾࠸࡚ࡣࠊཎᏊ㔞࡟౫Ꮡࡏࡎ 105 m/s ࣮࢜ࢲ࣮ࡢ୍ᐃ㏿ᗘ
ࢆᣢࡘ㧗㏿࢖࢜ࣥࡶほ ࡉࢀࡓࠋࡇࡢ㧗㏿࢖࢜ࣥࡢᡂศ

105

fs-fastns
104

fs-slow
0

50

100

150

200

Atomic Weightᅗ 2 㺸㺎㺙㺼㺎㺏㺪㺼㺸㺎㺚㺌㺻࡟ࡼࡾᨺฟࡉࢀࡓ㺐㺓㺻ࡢ㏿ᗘࡣࢼࣀ⛊࣮ࣞࢨ࣮࡛ࡣほ ࡉࢀ࡚࠸࡞࠿ࡗࡓࠋࡇࢀࡽࡢࡇ࡜࠿ࡽࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࣉࣟࢭࢫ࡟࠾࠸࡚ࡣࠊ
࣮ࣞࢨ࣮ග㟁⏺࡟౫Ꮡࡍࡿ㐣⛬ࡀ㧗㏿ࡢ࢖࢜ࣥᨺฟࢆㄏᑟࡋࠊග࢚ࢿࣝࢠ࣮ࡢ྾཰࠿ࡽ᱁Ꮚ⦆࿴ࠊ࢔ࣈ࣮ࣞ
ࢩࣙࣥ࡟⮳ࡿ㐣⛬࡛ࡣ࢖࢜ࣥࡣప㏿ࡢ࢖࢜ࣥࡀᨺฟࡉࢀ࡚࠸ࡿࡶࡢ࡜᥎ ࡋࡓࠋ ୍⯡࡟ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࣉࣟࢭࢫࡣ⇕ᣑᩓ࡟ࡼࡿ↷ᑕ㒊࿘㎶࡬ࡢᙳ㡪ࡀᑠࡉ࠸ࣉࣟࢭࢫ࡛࠶ࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋᮏᐇ㦂࠿ࡽᨺฟ⢏ᏊࡢほⅬ࠿ࡽࡶࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࣉࣟࢭࢫࡣࠊࡑࡢᙉ࠸ග㟁⏺ࢆά࠿ࡋࡓࣉࣟࢭࢫ࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
㸱㸬㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ࣉࣟࢭࢫ࡟ࡼࡿㄏ㟁యෆ㒊ຍᕤ࡜ࡑࡢᛂ⏝࡬ࡢᒎ㛤 ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࡟࠾࠸࡚ࡣࠊ㧗࠸ࣆ࣮ࢡࣃ࣮࣡ࢆ≉㛗࡜ࡍࡿຍᕤࣉࣟࢭࢫࡀ࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗ
ࡓࠋ㧗࠸ࣆ࣮ࢡࣃ࣮࣡ࢆά࠿ࡍᢏ⾡࡜ࡋ࡚ࠊከගᏊ྾཰ࢆ฼⏝ࡋࡓ㏱᫂ᮦᩱࡢຍᕤࡀ࠶ࡿࠋᮦᩱࡢࣂࣥࢻࢠ
ࣕࢵࣉࡀ㏆㉥እࡼࡾ㧗࢚ࢿࣝࢠ࣮㡿ᇦ࡟࠶ࡿ㏱᫂ᮦᩱ࡟࠾࠸࡚ࡶࠊ▷ࣃࣝࢫ࣮ࣞࢨ࣮ࢆ㞟ගࡋࡓ㝿࡟ࡣከගᏊ࡛ࡢ྾཰ࡀ⏕ࡌࠊᨵ㉁ࡸ࢔ࣈ࣮ࣞࢩࣙࣥࡀྍ⬟࡜࡞ࡿࠋከගᏊ㐣⛬࡛࠶ࡿࡢ࡛ࠊᅇᢡ㝈⏺ࢆ㉺࠼ࡓᑠࡉ࡞
㡿ᇦ࡛ࡢຍᕤࡀྍ⬟࡛࠶ࡿࠋ ᮏඹྠ◊✲࡟࠾࠸࡚ࡣࠊ110 nm ࡲ࡛ࡢ VUV ගࢆ㏱㐣ࡉࡏࡿ MgF2 ༢⤖ᬗෆ㒊࡟㏆㉥እࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ
㞟ග↷ᑕࡍࡿࡇ࡜࡟ࡼࡾෆ㒊ຍᕤࢆ᪋ࡋࠊVUV 㡿ᇦ࡟࠾ࡅࡿගཷືࢹࣂ࢖ࢫࢆస〇ࡍࡿᐇ㦂࡟╔ᡭࡋࡓࠋMgF2ࡢࣂࣥࢻࢠࣕࢵࣉࡣ 11 eV ࡛࠶ࡾࠊຍᕤࡣ 7ࠥ8 ගᏊ྾
཰ࡀᚲせ࡛࠶ࡿࠋ Ἴ㛗 785 nm ࡢࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࠿ࡽࡢฟຊࢆ 50
ᅗ 3 MgF2 ༢⤖ᬗᯈ࡟࠾ࡅࡿෆ㒊ຍᕤ⑞
PJ ࡟ㄪᩚࡋࠊཌࡉ 5 mm ࡢ MgF2 ༢⤖ᬗᯈࡢෆ㒊࡟ NA =0.45 ࡢᑐ≀ࣞࣥࢬࢆ౑ࡗ࡚㞟ග↷ᑕࡋࡓࠋMgF2 ༢⤖ᬗ
ヨᩱࡣ 10 mm/s ࡢ㏿ᗘ࡛࣮ࣔࢱ࣮㥑ືࢫࢸ࣮ࢪࢆ⏝࠸࡚
1 ḟඖ࡛ᤲᘬࡋࡓࠋᅗ 3 ࡟ຍᕤ⤖ᯝࢆ♧ࡍࠋᇶᯈࡢ OPཌࡳ᪉ྥ୰ᚰ࡟┤⥺≧ࡢ➽ࡀ้ࡲࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋ
ᅗ 4 ࡢࢹࢪࢱ࣐ࣝ࢖ࢡࣟࢫࢥ࣮ࣉീࡼࡾࠊຍᕤᚄࡣ⣙ 10
Pm ࡜ồࡵࡽࢀࡓࠋ఩┦ኚㄪ⣲Ꮚ࡜ࡋ࡚ࡣࠊຍᕤ㒊఩ࢆ࿘ᮇⓗ࡟୪࡭ࡓࣇ࢛ࢺࢽࢵࢡᵓ㐀ࢆ MgF2 ෆ㒊࡟స〇ࡍࡿ⪃࠼࡛࠶ࡿࠋྠ᮲௳࡛ 5  ᚟ࡢᤲᘬࡋ࣮ࣞࢨ࣮↷ᑕࢆ
ᅗ 4 MgF2 ༢⤖ᬗ࡟࠾ࡅࡿ
⾜ࡗࡓ࡜ࡇࢁࠊMgF2 ヨᩱࡣ๼㛤ࡋࠊ2 ศ๭࡜࡞ࡗࡓࠋࡇ
ෆ㒊ຍᕤ⑞ࡢ㺡㺼㺚㺼㺞㺷㺭㺐㺖㺹㺛㺘㺎㺪㺽ീࡢࡇ࡜࠿ࡽࠊ50 PJ ࡢ᮲௳࡟࠾࠸࡚ࡣࢡࣛࢵࢡࡀⓎ⏕ࡋࠊ⧞ࡾ㏉ࡋࡢᤲᘬ࡟ࡼࡾࢡࣛࢵࢡࡀᡂ㛗ࡋ๼㛤࡟⮳ࡗࡓࡶࡢ࡜᥎ ࡋࡓࠋ௒ᚋࡣ࣮ࣞࢨ࣮ࡢᢞධ࢚ࢿࣝࢠ࣮ࢆୗࡆࠊᚄࡢᑠࡉ࠸ຍᕤ㒊ࢆᚓࡿࡇ࡜ࠊ࡞ࡽࡧ࡟ຍᕤ㒊఩ࡢෆ㒊ᵓ㐀࡜⤌ᡂ࡞࡝ࡀ࡝ࡢᵝ࡟ኚ໬ࡍࡿ࠿࡟ࡘ࠸࡚ㄪᰝࡍࡿணᐃ࡛࠶ࡿࠋ
 MgF2 ࡢෆ㒊ຍᕤ㡿ᇦࢆ࿘ᮇⓗ࡟ᙧᡂࡋࠊࣇ࢛ࢺࢽࢵࢡᵓ㐀ࢆ᭷ࡍࡿࢹࣂ࢖ࢫࢆస〇ࡍࡿࠋࡇࢀ࡟ VUV ㉸▷ࣃࣝࢫ࣮ࣞࢨ࣮ࢆᑟධࡋࠊ⮬ᕫ఩┦ኚㄪ࡟ࡼࡿᗈᖏᇦ VUV ࢥࣄ࣮ࣞࣥࢺගࢆⓎ⏕ࡉࡏࡿ⪃࠼࡛࠶ࡿࠋ
㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝㸧− 181 −

ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥ࡟ࡼࡾࣜࢳ࣒࢘࣍࢘㓟ሷ⤖ᬗ࠾ࡼࡧ࢞ࣛࢫ⾲㠃࡟ᙧᡂࡋࡓࢼࣀ࣮࣍ࣝࡢࣔࣝࣇ࢛ࣟࢪ࣮                          ⛅⏣኱ᏛᕤᏛ㈨※Ꮫ◊✲⛉                          ᑠ⋢ ᒎᏹࠊᆏୗᬛ⨾ࠊᕤ⸨⍞ᕫࠊ㧗ᶫᬛᏊ
1. ⫼ᬒ࡜┠ⓗ ࣇ࢛ࢺࢽࢵࢡ⤖ᬗࡣࠊㄏ㟁⋡ࡢ␗࡞ࡿ፹㉁ࢆ࿘ᮇⓗ࡟㓄ิࡋࡓᵓ㐀య࡛࠶ࡾࠊࡑࡢ୰࡛࠶ࡿἼ㛗⠊ᅖࡢගࡢᏑᅾࡀチࡉࢀ࡞࠸ࣇ࢛ࢺࢽࢵࢡࣂࣥࢻࡀ⌧ࢀࡿࠋࣇ࢛ࢺࢽࢵࢡ⤖ᬗࡢస〇ࡣࠊ㟁Ꮚࣅ࣮࣒ࣜࢯࢢࣛࣇ࢕࣮ࡸ࢖࢜ࣥࣅ࣮࣒࢚ࢵࢳ
ࣥࢢ࡟ࡼࡾ༙ᑟయࡸㄏ㟁యⷧ⭷࡟㛵ࡋ࡚ከࡃሗ࿌ࡉࢀ࡚࠸ࡿࠋࡑࡢ୍᪉ࠊ㧗ᙉᗘࠊ㉸▷ࣃࣝࢫࡢࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࢔
ࣈ࣮ࣞࢩࣙࣥ࡟ࡼࡿ⣸እᇦࡲ࡛㏱᫂࡞ᮦᩱࡢ⾲㠃࡟㸰ḟඖࢼࣀ࣮࣍ࣝ࢔ࣞ࢖ࢆᙧᡂࡋࡓ㸰ḟඖࣇ࢛ࢺࢽࢵࢡ⤖ᬗࡢస〇ࡣࠊࡇࢀࡲ࡛◊✲ࡣ࡯࡜ࢇ࡝࡞ࡉࢀ࡚࠸࡞࠸ࠋ ࡜ࡾࢃࡅࠊ࢔ࣈ࣮ࣞࢩࣙࣥࡼࡗ࡚ᙧᡂࡉࢀࡿࢼࣀ࣮࣍ࣝᙧ≧ࡸ኱ࡁࡉࠊ῝ࡉ࡟㛵ࡍࡿᮦᩱࡢᵓ㐀ࡸ⤌ᡂ౫Ꮡࡢ◊✲ࡣᑡ࡞ࡃࠊྠࡌ⤌ᡂࢆᣢࡘ࢞ࣛࢫ࡜⤖ᬗ࡟ᑐࡍࡿ࢔ࣈ࣮ࣞࢩࣙࣥ࡟ࡼࡿ
࣮࣍ࣝࡢࣔࣝࣇ࢛ࣟࢪ࣮㸦ᙧែ㸧࡟ࡘ࠸࡚ࡣࠊࡇࢀࡲ࡛ሗ࿌ࡉࢀ࡚࠸࡞࠸ࠋ࣮࣍ࣝࡢࣔࣝࣇ࢛ࣟࢪ࣮ࡢᮦᩱᵓ㐀౫Ꮡ࡟㛵ࡍࡿ᝟ሗࡣࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥ㐣⛬ࡢ᪂ࡓ࡞ᇶ♏ⓗ▱ぢࢆ୚࠼ࡿࡶࡢ࡜⪃࠼ࡽࢀࡿࠋᡃࠎࡣࠊࡇ
ࢀࡲ࡛┿✵⣸እᇦࡲ࡛㏱᫂࡞࣡࢖ࢻࣂࣥࢻࢠࣕࢵࣉᮦᩱ࡜ࡋ࡚ࠊ
Li+/B3+⤌ᡂẚ 1 : 2 ࢆࡶࡘ 1/3Li2O-2/3B2O3 (LTB)࢞ࣛࢫ࡜ Li2B4O7 (LTB) ⤖ᬗ࡟ᑐࡋ࡚ࢼࣀ࣮࣍ࣝࡢᙧᡂࡋࠊ⤖ᬗ࡜࢞ࣛࢫ࡟࠾ࡅࡿᙧᡂࡉࢀࡿ࣮࣍ࣝࡢᙧែࡢ㐪࠸ࢆぢฟࡋࡓࠋ[1] ௒ᅇࠊࡉࡽ࡟ Li+/B3+ ⤌ᡂẚࡀ 1 : 3 ࡜␗࡞ࡿ 1/4Li2O·3/4B2O3 (LBO)࢞ࣛࢫ࡜ LiB3O5 (LBO)⤖ᬗ࡟ᑐࡋ࡚ࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩࣙࣥ࡟ࢼࣀ࣮࣍ࣝࢆᙧᡂࡋࠊ࣮࣍ࣝࡢᙧ≧࡜኱ࡁࡉࠊ῝ࡉࡢ㐪࠸ࢆㄪ࡭ࠊేࡏ࡚ Li+/B3+⤌ᡂẚ 1 : 2 ࡢ࢞ࣛࢫ࡜⤖ᬗ࡜ẚ㍑ࡋࡓࠋࡇࡇ࡛ࡣࠊ2 ✀ࡢ⤌ᡂࡢ࢞ࣛࢫ࡜⤖ᬗ࡟㛵ࡋ࡚ࠊྠ⤌ᡂࢆᣢࡘ࢞ࣛࢫ࡜⤖ᬗ࡟ᑐࡍࡿ࣮࣍ࣝࡢࣔࣝࣇ࢛ࣟࢪ࣮ࡢ⤌ᡂ౫Ꮡࠊᵓ㐀౫Ꮡࢆ᫂ࡽ࠿࡟ࡍࡿࠋຍ࠼࡚ࠊ࣮࣍ࣝ
ᵓ㐀ࡢࣇ࢚ࣝ̿ࣥࢫ౫Ꮡࢆሗ࿌ࡍࡿࠋ

2. ◊✲᪉ἲ LTB ࠾ࡼࡧ LBO ࢞ࣛࢫࡢస〇ࡣࠊฟⓎཎᩱࢆⓑ㔠ࡿࡘࡰ࡟ධࢀࠊ㟁Ẽ⅔ࢆ⏝࠸࡚ࠊ950Υࠊ30-50minಖᣢᚋࠊ⮬↛ᨺ෭(㝆 ㏿ᗘ⣙ 5.0Υ3.0Υ/min)ࡋྜᡂࡋࡓࠋLTB ༢⤖ᬗ࠾ࡼࡧ LBO ༢⤖ᬗࡣࠊࣈࣜࢵࢪ࣐ࣥἲ࡟
ࡼࡾ⫱ᡂࡉࢀࡓᕷ㈍ရࢆ⏝࠸ࡓࠋࡇࢀࡽ㸲ࡘࡢ LTBࠊLBO ࢞ࣛࢫ࠾ࡼࡧ⤖ᬗࡣࠊᴟ➃⣸እࢩࣥࢡࣟࢺࣟࣥ㌶㐨ᨺᑕග(UVSOR)ࢆ⏝࠸ࠊⓎගࠊບ㉳࠾ࡼࡧ྾཰ࢫ࣌ࢡࢺࣝࢆ ᐃࡋࠊ྾཰➃Ἴ㛗ࡀ 170nm ௜㏆ࡢ┿✵⣸እᇦࡲ࡛㏱᫂࡞㓟໬≀࡛࠶ࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋLTB ࠾ࡼࡧ LBO ࢞ࣛࢫ࡜⤖ᬗ⾲㠃࡬ࡢࢼࣀ࣮࣍ࣝࡢᙧᡂࡣࠊ୰ᚰἼ㛗ǌ = 775 nm, ࣃࣝࢫᖜ 150 fs, 1kHz, ┤⥺೫ග,TEM00 ࣮ࣔࢻࡢࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ⏝࠸ࠊ㢧ᚤ㙾࡛㞟ගࡋ(ࣅ࣮࣒ࢫ࣏ࢵࢺᚄ㸸⣙ 2 ȝm)ࠊࢧࣥࣉࣝࢆࢫ࢟ࣕࣥࡋ࡚ࠊ㸯࣮࣍ࣝࢆࢩࣥࢢࣝࢩࣙࢵࢺ↷ᑕ࡛, 0.15,0.2,0.3,0.4,0.5mW(ࣇ࣮࢚ࣝࣥࢫ 4.7,6.4,9.6,12.7,15.9 J/cm2) ࡢฟຊ࡛ᙧᡂࡋࡓࠋ࣮࣍ࣝࡣ FE-SEM ࡛⾲㠃ᙧ≧ࢆࠊFIB-SEM ࡛᩿㠃ࢆほᐹࡋࠊ2 ࡘࡢ࢞ࣛࢫ࡜ࠊ2 ࡘࡢ⤖ᬗ⾲㠃ࡢ࣮࣍ࣝᙧែ㸦ᙧ≧ࠊ኱ࡁࡉࠊ῝ࡉ㸧ࢆㄪ࡭ࡓࠋ

3. ⤖ᯝ
㸯౛࡜ࡋ࡚ࠊLi+/B3+⤌ᡂẚ 1 : 2 ࢆࡶࡘ 1/3Li2O-2/3B2O3 (LTB)࢞ࣛࢫ࡜ Li2B4O7 (LTB) ⤖ᬗࠊ࠾ࡼࡧ Li+/B3+ ⤌ᡂẚ 1 : 3 ࡢ 1/4Li2O·3/4B2O3 (LBO)࢞ࣛࢫ࡜ LiB3O5 (LBO) ⤖ᬗࡢ 4 ࡘࡢヨᩱࢆࠊฟຊ 0.15mW(ࣇ࣮࢚ࣝࣥࢫ

4.7 J/cm2) ࡢฟຊ࡛࢔ࣈ࣮ࣞࢩࣙࣥ࡟ࡼࡾᙧᡂࡉࢀࡓ࣮࣍ࣝࡢ SEM ⏬ീࢆᅗ 1(a)-(d)࡟♧ࡍࠋᅗ 1(a)࡜(b)ࡣࠊLTB
࢞ࣛࢫ࡜ LTB ⤖ᬗ⾲㠃ࡢ࣮࣍ࣝࡢ SEM ⏬ീ㸪(c)࡜(d)ࡣ LBO ࢞ࣛࢫ࡜ LBO ⤖ᬗ⾲㠃ࡢ SEM ⏬ീ࡛࠶ࡿࠋLTB− 182 −

⤖ᬗࡢ࣮࣍ࣝࡢ⾲㠃 SEM ⏬ീ࡛(a)㸪(c)ࡣࣇ࣮࢚ࣝࣥࢫ 15.9J/cm2(0.5mw), (b), (d) ࡣ 6.4J/cm2(0.2mW)࡛ࡢຍᕤ
ࡋࡓ࣮࣍ࣝࡢᙧ≧ࢆ 1 ౛࡜ࡋ࡚♧ࡍࠋ࢔ࣈ࣮ࣞࢩ࡛ࣙࣥᙧᡂࡉࢀࡓ࣮࣍ࣝࡣࠊ⤌ᡂẚ࡟࠿࠿ࢃࡽࡎ LTB ࡜ LBO࢞ࣛࢫ࡛ࡣࠊࣅ࣮࣒ᙉᗘࣉࣟࣇ࢓࢖ࣝࢆ཯ᫎࡋࡓ࡯ࡰ෇ᙧ(ᴃ෇≧)ࡢ࣮࣍ࣝࡀᙧᡂࡉࢀࡓࠋࡑࢀ࡟ᑐࡋ࡚ࠊLTB ⤖ᬗ࡜ LBO ⤖ᬗ࡛ࡣ㸪ࣅ࣮࣒ࣉࣟࣇ࢓࢖ࣝ࡜ࡣ␗࡞ࡾࠊ⤖ᬗࡢᵓ㐀 (LTB ࡣṇ᪉ᬗ, LBO ࡣᩳ᪉ᬗ) ࢆ཯ᫎࡋࡓ࡜
⪃࠼ࡽࢀࡿᅄゅᙧ≧ࡢ࣮࣍ࣝࡀᙧᡂࡉࢀ࡚࠸ࡿࠋࡲࡓࠊࡑࢀࡽࡢᅄゅᙧ࣮࣍ࣝࡢ⦕ (᩿㠃) ࡣࠊX ⥺ᅇᢡ࡛㍈᪉఩ࢆỴᐃࡋࡓ⤖ᯝ࡟ᇶ࡙ࡃ࡜ࠊLTB ⤖ᬗ࡛ࡣࠊ{hh0} ᆺ㠃࡟ᖹ⾜ࠊLBO ࡛ࡣ{h00}࡜{00l} ᆺ㠃࡟ᖹ⾜࡟࡞ࡗ࡚࠸ࡿࠋ
(hh0)

a-axis
(hh0)
((hh
hh0

(00l)

a-axis((hh0)(a)㽢30,000

1ȝm

(b)
(b)

1ȝm

a-axis

(h00)

(hh0)

㽢30,000

c-axis

(h00)
(00l)

(c)

㽢30,0001ȝm

(d)

㽢30,0001ȝm

Fig.1 SEM images of ablated holes on the surface of LTB and LBO glasses and crystals with a laser intensity of 0.15mW. (a) LTB glass,(b) LTB crystal. Ablated holes on (c) LBO glass and (d) LBO crystal using a laser intensity of 0.15 mW࣮࣍ࣝࡢ኱ࡁࡉࡣࠊ࢔ࣈ࣮ࣞࢩࣙࣥฟຊ࡛␗࡞ࡾࠊLTB ࢞ࣛࢫ࡜ LBO ࢞ࣛࢫࡣࠊྛࠎࠊ⾲㠃ࡢ┤ᚄࡣ 3ǌ/2-5ǌ/2 ࡜ 5ǌ/3-3ǌ ࡛ࠊࣅ࣮࣒ࢫ࣏ࢵࢺᚄ (⣙ 2Ǎm)௨ୗࡢࢼࣀ࣮࣍ࣝࡀࠊࡲࡓࠊLTB ࡜ LBO ⤖ᬗ࡛ࡣࠊ୍㎶
4ǌ/5-7ǌ/5 ࡜ ǌ/3-7ǌ/4 ࡛ࠊࣅ࣮࣒ࢫ࣏ࢵࢺᚄ (⣙ 2Ǎm) ཬࡧ Ἴ㛗(Ȣ=775nm)௨ୗࡢ኱ࡁࡉࢆࡶࡘࢼࣀ࣮࣍
ࣝࡀᙧᡂࡉࢀࡓࠋ࣮࣍ࣝࢧ࢖ࢬࡣ࣮ࣞࢨ࣮ࣇ࣮࢚ࣝࣥࢫࡢῶᑡ࡜࡜ࡶ࡟ᑠࡉࡃࠊ࠸ࡎࢀࡶ㜈್ຍᕤ(<4.7J/m2)࡛
࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋᅗ 2(a)-(d)࡟ࠊLTB ࢞ࣛࢫ࡜⤖ᬗ࡜ LBO ࢞ࣛࢫ࡜⤖ᬗࡢ࣮᩿࣍ࣝ㠃ࢆ♧ࡍࠋ࣮࣍ࣝ῝ࡉࡣࠊLTB ࢞ࣛࢫ࡜⤖ᬗࡀὸࡃ(0.59-1.69Ǎm)ࠊLBO ࢞ࣛࢫ࡜⤖ᬗࡣ(2.9-2.0ȝm)࡜῝࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋ

(a)

㽢60,0001ȝm

(b)

㽢60,0001ȝm

(c)

㽢60,0001ȝm

(d)

㽢60,000

1ȝm

Fig.2 FIB-SEM three dimensional images (cross sectional view) of nanoholes (a) (a) LTB glass, (b) LTB crystal. (c) LBO glass and (d) LBO
crystal

LTB ࢞ࣛࢫ࡜ LBO ࢞ࣛࢫࡣࠊ࠾᳐≧ࡲࡓࡣ෇⟄≧ࠊLTB ⤖ᬗ࡜ LBO ⤖ᬗ࡛ࡣࠊ㸲ゅᙧ≧ࡢ࣮᩿࣍ࣝ㠃ࢆ♧ࡍࡀࠊ୍㒊࣮࣍ࣝෆ㒊࡟ࡣࠊ࣮᩿࣍ࣝ㠃࡟ᑐࡋ࡚ᶓ᪉ྥࡲࡓࡣᩳࡵ࡟ட⿣ࡀධࡗ࡚࠸ࡿࡢࡀࡳࡽࢀࡿࠋࡇࡢ
ཎᅉࡣ⌧ẁ㝵࡛ࡣ᫂ࡽ࠿࡛ࡣ࡞࠸ࡀࠊ࢔ࣈ࣮ࣞࢩࣙࣥࡉࢀࡓᇶᯈᮦᩱࡀ✰ࡢഃቨ࡟෌௜╔ࡍࡿ࢖࢜ࣥ࡟ࡼࡾ࢔ࣈࣞ
㸫ࢪࣙࣥࡉࢀࡿࠊ࠶ࡿ࠸ࡣட⿣ࡣ⮬యࡣ⇕࡟ࡼࡿኚᙧ࡛Ⓨ⏕ࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ≉࡟ࠊ⇕⭾ᙇಀᩘࡀ⤖ᬗ᪉఩࡟ࡼ
ࡗ࡚␗࡞ࡿࡼ࠺࡞ᮦᩱࡔ࡜ட⿣ࡀධࡿࡼ࠺࡞ࡇ࡜ࡀ㉳ࡇࡿࡢ࡛ࡣ࡞࠸࠿࡜᥎ᐃࡉࢀࡿࠋ

4. ⤖ㄽ㓟໬≀㏱᫂ᮦᩱࡢ 2 ḟඖࣇ࢛ࢺࢽࢵࢡ⤖ᬗ๰〇࡟ྥࡅࠊ
Li+/B3+⤌ᡂẚ 1/2 ࢆࡶࡘ 1/3Li2O-2/3B2O3 (LTB)࢞ࣛ

ࢫ)࡜ Li2B4O7 (LTB) ⤖ᬗࠊLi+/B3+ ⤌ᡂẚ 13 ࡢ 1/4Li2O·3/4B2O3 (LBO)࢞ࣛࢫ࡜ LiB3O5 (LBO) ⤖ᬗ⾲㠃࡟ࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩ࡛ࣙࣥࢼࣀ࣮࣍ࣝࢆᙧᡂࡋࡓࠋLTB ࡜ LBO ࢞ࣛࢫ࡛ࡣ㸪ࣅ࣮࣒ࣉࣟࣇ
࢓࢖ࣝࢆ཯ᫎࡋࡓ࡯ࡰ෇ᙧࡢࢼࣀ࣮࣍ࣝࡀࠊLTB ࡜ LBO ⤖ᬗ࡛ࡣ㸪༢఩᱁Ꮚᵓ㐀࡟㛵ಀࡍࡿᅄゅᙧ≧ࡢࢼࣀ࣮࣍ࣝࡀᙧᡂࡉࢀࡿ࡜࠸࠺ᵓ㐀౫Ꮡࡀ࠶ࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋࡇࡢ⤖ᯝࡣࠊ࣮࣍ࣝᙧ≧ࡢ㐪࠸࡟ࡼࡿ㟁☢⏺
ศᕸᙧ≧ࡀ␗࡞ࡿ㸰ḟඖࣇ࢛ࢺࢽࢵࢡ⤖ᬗࡢస〇ࡀࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮࢔ࣈ࣮ࣞࢩ࡛ࣙࣥྍ⬟ᛶࡀ࠶ࡿ஦ࢆ♧ࡍࠋ

5. ཧ⪃ᩥ⊩ >1@ ᆏୗᬛ⨾ࠊ㧗ᶫᬛᏊࠊᑠ⋢ᒎᏹࠊ⠛Ọᮾ࿃ࠊሯᮏ㞞⿱ࠊụ⏣┤ᶞࠊᮡᮏ႐ṇࠊ➨ 27 ᅇ᪥ᮏࢭ࣑ࣛࢵࢡࢫ༠఍⛅Ꮨࢩ࣏ࣥࢪ࣒࢘ ணཎ㞟 2PN01 ࠊ2014 ᖺ 9 ᭶ 10 ᪥ 㮵ඣᓥ኱Ꮫඹྠ◊✲ศ㔝 :ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝  − 183 −

࣮ࣞࢨᒁᡤຍ⇕ἲ࡟ࡼࡿ⣧ࢳࢱࣥ/࣏࢚ࣜࢳࣞࣥ」ྜᮦᩱࡢస〇ᅜ❧኱Ꮫἲேᐩᒣ኱ᏛᕤᏛ㒊ᮦᩱᶵ⬟ᕤᏛ⛉ᰘᰗᩄဢ⫼ᬒ࡜┠ⓗ
࣮ࣞࢨᒁᡤຍ⇕ἲࡣࠊ≉ᐃࡢ㡿ᇦࡢࡳࢆඃඛⓗ࡟⤌⧊ኚ໬ࡉࡏࡿࡇ࡜ࡀ࡛ࡁࠊᮦᩱ⤌⧊ࡢ୙ᆒ୍ᛶࢆࡼࡾ
ຠᯝⓗ࡟⤌⧊ไᚚ࡟ά࠿ࡍ᪉ἲ࡜ࡋ࡚఩⨨࡙ࡅࡽࢀ࡚࠸ࡿࠋ➹⪅࡜ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝ࡢࢢ࣮ࣝࣉ࡛ඹྠ㛤Ⓨࡋࡓ࣮ࣞࢨᒁᡤຍ⇕ࢩࢫࢸ࣒ࡣ᭱ᑠᚄ㸳ȣP ࡢ㡿ᇦ࡟࣮ࣞࢨගࢆ㞟ගࡋ࡚ຍ⇕࡛ࡁࡿࠋࡇࢀࢆ
᥼⏝ࡋ࡚ࠊ௵ពࡢ↷ᑕࣃࢱ࣮ࣥ࡟ࡼࡾᮦᩱ⾲㠃࡟࣮ࣞࢨຍ⇕ฎ⌮ࢆ᪋ࡏࡤሙᡤ࡟ࡼࡾ␗࡞ࡿ⇕ᒚṔ㸦ࡍ࡞ࢃࡕ␗࡞ࡿ⤌⧊㸧ࢆᣢࡗࡓ⤌⧊ࢆసࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡇࢀࡲ࡛࡟ࠊ⣧࢔࣑ࣝࢽ࣒࢘ᯈ࡬ࡢᒁᡤ෌⤖ᬗ⢏⤌⧊ࡢ
๰ฟࡸ 686 ࢫࢸࣥࣞࢫ㗰ᯈ⾲㠃࡟㒊ศⓗ࡟࣐ࣝࢸࣥࢧ࢖ࢺኚែ㡿ᇦࢆసࡾฟࡍࡇ࡜࡟ᡂຌࡋ࡚ࡁࡓࠋ
ࡇࢀࡽࡢᒁᡤ⤌⧊ไᚚᢏ⾡ࢆࠕ↝⤖ࠖ࡜࠸࠺ほⅬ࡛ᤊ࠼┤ࡍ࡜ࠊ␗࡞ࡿ⤌ᡂ࡜⤌⧊ࢆ᭷ࡍࡿ㡿ᇦࢆ≺࠸㏻ࡾࡢሙᡤ࡟๰ࡾฟࡍ㸱' ࣉࣜࣥࢸ࢕ࣥࢢᢏ⾡࡬࡜ᒎ㛤࡛ࡁࡿࠋᮏ◊✲࡛ࡣࠊ⏕యぶ࿴ᛶࡢ㧗࠸⣧ࢳࢱࣥ࡜࣏
࢚ࣜࢳࣞࣥࡢ」ྜ⢊ᮎ࡟ᒁᡤຍ⇕ᢏ⾡ࢆ㐺⏝ࡋ࡚≉␗࡞ຊᏛ≉ᛶࢆ᭷ࡍࡿ」ྜᮦᩱࢆ㐀ࡾฟࡍࡇ࡜ࢆ୺㢟࡜ࡋࠊᮏᖺᗘࡣ」ྜ໬ᶵᵓࢆྵࡵࡓᇶ♏ࢹ࣮ࢱࡢྲྀᚓࢆ┠ⓗ࡜ࡋࡓࠋ
ᐇ㦂᪉ἲ」ྜᮦᩱࢆ㐀ᙧࡍࡿ࡟࠶ࡓࡾ⢊ᮎᒙࡢཷࡅ─࡜࡞ࡿヨ

Table1 」ྜᮦᩱ㛤Ⓨࡢ࣮ࣞࢨ࣮↷ᑕ᮲௳⢊ᮎᒙᑍἲ

:/7PP

඘ሸ⋡

7L3( ඹ࡟⣙ 㸣࣮ࣞࢨ࣮ࣅ࣮࣒ᚄ

⣙ 㹼ȣP

࣮ࣞࢨ࣮㏦ࡾ㏿ᗘ

PPV

⢊ᮎࢆ඘ሸࡋࠊ࣮ࣞࢨࢆ↷ᑕࡋࡓࠋ

ฟຊ

:

 ḟ࡟ගᏛ⣔࡟ࡘ࠸࡚࡛࠶ࡿࡀ ,3* ࣇ࢓ࢺࢽࢡࢫࢪࣕࣃ

㞺ᅖẼ࢔ࣝࢦࣥ㞺ᅖẼ  ᩱ࣍ࣝࢲ࣮ࢆタィࡋࡓࠋᮦ㉁ࡣ࣮ࣞࢨ↷ᑕ࡟ࡼࡾⓎ⇕ࡋ࡟ࡃࡃ⼥Ⅼࡢẚ㍑ⓗ㧗࠸㖡〇࡜ࡋࡓࠋヨᩱ࣍ࣝࢲ࣮ࡣ」ྜᮦᩱ㛤Ⓨ⏝࣍ࣝࢲ࣮࡜ᘬᙇヨ㦂∦సᡂ⏝࣍ࣝࢲ࣮ࡢ ✀㢮⏝ពࡋࡓࠋ」ྜᮦᩱࡢᡂᙧࡣࠊ࣍ࣝࢲ࣮ࡢ⁁࡟ΰྜࣥᰴᘧ఍♫〇ࣇ࢓࢖ࣂ࣮࣮ࣞࢨࠊᐃ᱁ฟຊ :ࠊἼ㛗ȣP ࢆ⏝࠸ࡓࠋ+H1H ࣮ࣞࢨ࡛↷‽ࢆᐃࡵࡽࢀࡿ௙ᵝ࡜ࡋࠊࣇ࢓࢖ࣂ࣮࣮ࣞࢨගࡣ㞟ග⏝ࣞࣥࢬ㸦I PPࠊ

I PP㸧ࢆ౑ࡗ࡚ヨᩱ⾲㠃࡟㞟ගࡉࡏࡓࠋI ࡣࣞࣥࢬࡢ↔Ⅼ㊥㞳ࢆ⾲ࡍࠋࡇࡢ㞟ග⏝ࣞࣥࢬࡣྍືᘧ࡛࠶
ࡾࠊヨᩱ⾲㠃ࡢ࣮ࣞࢨᚄࢆኚ࠼ࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࠋ࡞࠾ࠊ࣮ࣞࢨᚄࡣ &&' ࣓࢝ࣛ࡟ࡼࡗ࡚☜ㄆฟ᮶ࡿ௙ᵝ࡜ࡋࡓࠋࡲࡓ ;<ࢫࢸ࣮ࢪࢆ⏝࠸࡚ヨᩱ࣍ࣝࢲ࣮ࢆ⛣ືࡉࡏࠊ࣮ࣞࢨࡢ↷ᑕ఩⨨ࢆኚ࠼ࡿࡇ࡜ࡀ࡛ࡁࡿ௙⤌ࡳ࡜ࡋࡓࠋ
ᮦᩱ⢊ᮎ࡟ࡣᰴᘧ఍♫ᮾ㑥ࢳࢱࢽ࣒࢘ࡼࡾỈ⣲໬⬺Ỉἲ࡛〇సࡋࡓ⣧ࢳࢱࣥ⢊ᮎࠊ⢏Ꮚᚄࡀ ࠊࠊȣP ࡢ  ✀㢮ࢆ⏝ពࡋࡓࠋ࣏࢚ࣜࢳࣞࣥ⢊ᮎ࡟ࡘ࠸࡚ࡣࢭ࢖ࢩࣥᰴᘧ఍♫ࡼࡾపᐦᗘ࣏࢚ࣜࢳࣞࣥ⢏Ꮚᚄ ȣPࢆ⏝ពࡋࡓࠋྛ⢊ᮎࡢΰྜ࡟ࡣᰴᘧ఍♫ఀ⸨〇సᡤ〇࣓ࣀ࢘ங㖊ࠊእᑍἲ PP ࢆ⏝࠸ࡓࠋΰྜࡢ๭ྜࡣ⢏Ꮚᚄ ȣP ࡢపᐦᗘ࣏࢚ࣜࢳࣞࣥࢆ࣮࣋ࢫ࡜ࡋ࡚⣧ࢳࢱࣥ⢊ᮎ⢏Ꮚ ȣP 㓄ྜ๭ྜࡀయ✚๭ྜ࡛ 㸣ཬࡧ㸣ࡢ  ✀㢮ࢆ⏝ពࡋࡑࢀࡒࢀ࣮ࣞࢨ↷ᑕࡋࡓࠋ࣮ࣞࢨ↷ᑕ᮲௳ࢆ 7DEOH ࡟♧ࡍࠋ」ྜᮦᩱ㐀ᙧ⤖ᯝ⣧ࢳࢱࣥ⢊ᮎ㓄ྜ⋡ ࡛ᚓࡽࢀࡓ」ྜᮦࡢࠊ㛗ᡭ᪉ྥ᩿㠃ࡢගᏛ㢧ᚤ㙾෗┿ࢆ )LJ ࡟♧ࡍࠋ࡞࠾ࠊほᐹ఩⨨ࡣ࣮ࣞࢨ↷ᑕ㛤ጞⅬ㏆ഐ࡛࠶ࡿࠋⓑ࠸ࢥࣥࢺࣛࢫࢺࡀ⣧ࢳࢱࣥ⢊ᮎ࡛࠶ࡾࠊ࣏࢚ࣜࢳࣞࣥࢆ࣮࣋ࢫ࡜
ࡋ࡚ᆒ୍࡟ศᩓࡋ࡚࠸ࡿᵝᏊࡀศ࠿ࡿࠋࡇࢀࡣ」ᩘࡢ㢧ᚤ㙾෗┿ࡼࡾ༢఩㠃✚ᙜࡓࡾࡢ⣧ࢳࢱࣥ⢏Ꮚࡢᩘࢆ− 184 −

ᩘ࠼ࡿࡇ࡜࡟ࡼࡾ⣧ࢳࢱࣥ⢏Ꮚࡀᆒ୍࡟ศᕸࡋ
࡚࠸ࡿࡇ࡜ࢆᢕᥱࡋࡓࠋࡑࡢᩘࡣ PP ࠶ࡓࡾ࡟ ಶࠊᶆ‽೫ᕪ  ࡛࠶ࡗࡓࠋ⣧ࢳࢱࣥ⢊ᮎ㓄ྜ⋡ ࡢࡶࡢ࡟㛵ࡋ࡚ࡣΰྜ⢊ᮎᒙ⾲㠃࡬
࣮ࣞࢨ㊧࡟ἢࡗ࡚࣏࢚ࣜࢳࣞࣥࡀ⵨Ⓨࡋࡓ࡜ᛮࢃࢀࡿ⁁ࡀ⌧ࢀ඲యࡀ㐀ᙧ࡛ࡁ࡞࠸⤖ᯝ࡜࡞ࡗࡓࠋ」ྜᮦᩱࡢຊᏛⓗ≉ᛶᘬᙇヨ㦂∦ࡢ✀㢮ࡣ 3( ⢊ᮎࢆᡂᙧࡋࡓࡶࡢࠊ
⣧ࢳࢱࣥ⢊ᮎࡢ㓄ྜ⋡ࢆ 㸣࡜ࡋ࡚⢏ᏊᚄࡀࡑFig.1 ⣧ࢳࢱࣥ⢊ᮎ㓄ྜ⋡ 10㸣ᮦࡢගᏛ㢧ᚤ㙾⤌⧊ࢀࡒࢀ ȣPࠊȣPࠊȣP ࡢࡶࡢࠊ⣧ࢳࢱࣥࡢ㓄ྜ⋡ࢆ 㸣࡜ࡋ࡚⢏Ꮚᚄࡀ ȣP ࡢࡶࡢࠊྜィ  ✀㢮⏝ពࡋࡑࢀࡒࢀ 㹼 ᅇࡢヨ㦂ࢆ⾜ࡗࡓࠋ࣮ࣞࢨ↷ᑕ᮲௳ࡣฟຊ 㹼: ࡛ࠊ࣮ࣞࢨᚄ PPࠊ㏦ࡾ㏿ᗘ PPVࠊ⣧࢔ࣝࢦࣥ㞺ᅖẼ࡛࠶ࡗࡓࠋ
ヨ㦂᮲௳ࡣࠊᑍἲ :/7PP ࡛࠶ࡾᶆⅬ㛫㊥㞳ࢆ PP ࡜ࡋࡓࠋヨ㦂 ᗘࡣᖖ ࡜ࡋࡦࡎࡳ㏿ᗘ V ࡜ࡋࡓࠋࡘ࠿ࡳࡣ୧➃࡟ PP
࡛࠶ࡗࡓࠋᘬᙇヨ㦂࡟ࡼࡾ◚᩿ࡋࡓ௦⾲ⓗ࡞ヨ

(a)

(b)

)LJ◚᩿ᚋࡢヨ㦂∦3( D ࠊ7LȣP EᩱࡢගᏛ㢧ᚤ㙾෗┿ࢆ )LJ ࡟♧ࡍࠋ◚᩿ᚋࡢヨ㦂∦ࡢᵝᏊ࠿ࡽぢ࡚ศ࠿ࡿࡼ࠺࡟
୧⪅࡛◚᩿ᶵᵓࡀ඲ࡃ␗࡞ࡗ࡚࠸ࡿࡇ࡜ࡀ࠺࠿
ࡀ࠼ࡿࠋࡲࡓࠊヨ㦂࡟ࡼࡿྛヨ㦂∦ࡢ◚᩿㠃ࡢほᐹ࡟ࡘ࠸࡚ゎᯒࢆ㐍ࡵ㐀ᙧཎ⌮ゎ᫂ࡢࢹ࣮ࢱ࡜
ࡍࡿࡇ࡜ࡀḟᖺᗘ௨㝆ࡢㄢ㢟࡜࡞ࡿࠋ
ḟ࡟ᐇ㦂⤖ᯝ࠿ࡽᘬᙇᙎᛶ⋡ࢆ⟬ฟࡋࡓࠋ,62ࠊ-,6. ࡛ࡣࠊ㸣࡜ 㸣ࡢබ⛠ࡦࡎࡳ࡟ᑐᛂࡍࡿࡑࢀࡒࢀࡢᛂຊ࠿ࡽᙎᛶ⋡ࢆ⟬ฟࡍࡿࡼ࠺ᐃࡵࡽࢀ࡚࠸ࡿࡓࡵࡇࢀ࡟‽ࡌ࡚⟬ฟࡋࡓࠋࡑࡢ௦⾲ⓗ࡞⤖ᯝࢆ )LJ ࡟♧ࡍࠋࢢࣛࣇ࡟࠾࠸࡚ᶓ㍈࡟ࡣᘬᙇ࡟ࡼࡿఙࡧࢆࠊ⦪㍈ࡣ

)LJヨ㦂⤖ᯝࠊⲴ㔜ఙࡧ᭤⥺Ⲵ㔜࡛࠶ࡿࠋࢢࣛࣇࡢഴࡁ࠿ࡽ」ྜᮦࡢᙎᛶ⋡ࡀศ࠿ࡿࡀࠊ࠸ࡎࢀࡢ」ྜᮦࡢᐇ㦂⤖ᯝ࡟࠾࠸࡚ࡶᘬᙇᙎᛶ⋡ࡀ࣏࢚ࣜࢳࣞࣥࡢ 0SD ࢆ⣧ࢳࢱࣥ⢊ᮎ㓄ྜ⋡ࡀ 㸣ࠊȣP ࡛ 03DࠊȣP ࡛ 03Dࠊ⣧ࢳࢱࣥ⢊ᮎࡢ㓄ྜ⋡ 㸣ࠊȣP ࡛ 03D ࡜඲࡚࡟࠾࠸࡚ୖ
ᅇࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡑࡢ⤖ᯝࠊ」ྜᮦᩱࡢᙎᛶ⋡ࡣࣄࢺࡢ㦵㸦⭜᳝ᾏ⥥㦵ࡢ๛ᛶ⋡ 㹼03D㸧ࢆ㐩ᡂࡋࡓࠋ㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝㸧− 185 −

ࣇ࢙࣒ࢺ⛊࣮ࣞࢨࢆ⏝࠸ࡓྍどගᛂ⟅ᆺ㓟໬ࢳࢱࣥࡢ๰〇㸦ᆅ⊂㸧኱㜰ᕷ❧ᕤᴗ◊✲ᡤ 㧗ᶫ㞞ஓ ┠ⓗ

(a)㓟໬ࢳࢱࣥࡣගゐ፹ᶵ⬟ࢆ᭷ࡍࡿ༙ᑟయᮦ
ᩱ࡜ࡋ࡚▱ࡽࢀ࡚࠾ࡾࠊ✵ẼΎίࠊ་⒪ࠊᅵተởᰁฎ⌮࡞࡝ࡑࡢᛂ⏝฼⏝ࡣከᒱ࡟ࢃࡓࡿࠋ
ࡋ࠿ࡋ࡞ࡀࡽࠊ㓟໬ࢳࢱࣥࡣᗈ࠸ࣂࣥࢻࢠࣕ
ࢵࣉ(3.2 eV)ࢆ᭷ࡋ࡚࠸ࡿࡇ࡜࠿ࡽࠊࡑࡢ࢚ࢿ
ࣝࢠ࣮࡟┦ᙜࡍࡿἼ㛗(388 nm)௨ୗ࡛࠶ࡿ⣸እගࡢ฼⏝ࡢࡳ࡟ไ㝈ࡉࢀࡿࠋ୍᪉ࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨࡢ↷ᑕ࡟ࡼࡾ㓟໬ࢳࢱࣥࡀ㯮Ⰽ໬ࡍࡿࡇ࡜ࡀぢฟࡉࢀ࡚࠸ࡿࠋ
ᮏ◊✲࡛ࡣࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨࡢ↷ᑕ࡟ࡼ(b)ࡾ㓟໬ࢳࢱࣥ⭷࡟ྍどග࡟࠾ࡅࡿගゐ፹ᶵ⬟ࢆ௜୚ࡋࠊ≉ᛶࢆไᚚࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ ◊✲᪉ἲ
ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࡜ࡋ࡚ࢳࢱࣥࢧࣇ࢓࢖࢔
ࣇ࢙࣒ࢺ⛊࣮ࣞࢨࢩࢫࢸ࣒(Clark-MXR ♫〇ࠊ
CPA2110)ࢆ⏝࠸ࡓࠋ࣮ࣞࢨἼ㛗ࠊࣃࣝࢫᖜཬ
ࡧ⧞ࡾ㏉ࡋ࿘Ἴᩘࡣࡑࢀࡒࢀ 775 nmࠊ150 fs

ᅗ㸯 Result of the acetaldehyde testཬࡧ 1 kHz ࡛࠶ࡿࠋ(a) laser fluence below 100 mJ/cm2

࣮ࣞࢨࣇ࣮࢚ࣝࣥࢫࡣ࢚ࢿࣝࢠ࣮ῶ⾶ჾࢆ(b) laser fluence over 100 mJ/cm2

ㄪ⠇ࡍࡿࡇ࡜࡟ࡼࡾ 20ࠊ40ࠊ60ࠊ80ࠊ100ࠊ
120ࠊ 140 ࠾ࡼࡧ 160 mJ/cm2 ࡜ࡋࡓࠋ࣮࢜
ࣂ࣮ࣛࢵࣉᩘ 250 pulses ࡛ 10mm20mm ࡢ㡿ᇦ࡟࣮ࣞࢨࢆ↷ᑕࡋࡓࠋගゐ፹ᶵ⬟ࡣἼ㛗
410 nm ௨ୖࡢྍどගࢆ↷ᑕࡋࠊ࢔ࢭࢺ࢔ࣝ

࠿ࡗࡓࠋࡲࡓࠊᅗ㸯(b)࡟♧ࡍࡼ࠺࡟࣮ࣞࢨࣇ
࣮࢚ࣝࣥࢫ 120 mJ/cm2 ௨ୖࡢ㡿ᇦ࡛ࡣࠊࣞ
࣮ࢨ↷ᑕ࡟ࡼࡗ࡚㓟໬ࢳࢱࣥ⭷ࡢගゐ፹ᶵ⬟ࡀኻࢃࢀࡓࡇ࡜ࡀࢃ࠿ࡗࡓࠋ

ࢹࣄࢻศゎヨ㦂࡟ࡼࡗ࡚⾜ࡗࡓࠋ࢔ࢭࢺ࢔ࣝ
ࢹࣄࢻࡢึᮇ⃰ᗘ 100 ppm ࠿ࡽࠊᬯᐊ࡛ 120 ⤖ㄽ
ᮏ◊✲࡛ࡣࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨࢆ↷ᑕࡋࡓศ㛫ಖᣢࡋࡓᚋࠊἼ㛗 410 nm ௨ୖࡢྍどග㓟໬ࢳࢱࣥ⭷ࡢගゐ፹ᶵ⬟ࢆㄪ࡭ࡓࠋࣇ࢙࣒

ࢆヨᩱ࡟↷ᑕࡋࠊ⃰ᗘࡢኚ໬ࢆㄪ࡭ࡓࠋ

ࢺ⛊࣮ࣞࢨ↷ᑕ㒊࡟ᑐࡋἼ㛗 410 nm ௨ୖࡢྍどගࢆ↷ᑕࡍࡿ࡜ࠊ࣮ࣞࢨࣇ࣮࢚ࣝࣥࢫ ◊✲⤖ᯝᬯᡤಖᣢᚋࠊ࢔ࢭࢺ࢔ࣝࢹࣄࢻ⃰ᗘࡣ㓟໬ࢳࢱࣥ⭷࡬ࡢ྾╔࡟ࡼࡾᅗ㸯࡟♧ࡍࡼ࠺࡟

100 mJ/cm2 ௨ୗࡢ㡿ᇦ࡛ࡣྍどගᛂ⟅ᆺගゐ፹ᶵ⬟ࡀ௜୚ࡉࢀࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡲࡓ

90ppm ୍࡛ᐃ࡜࡞ࡗࡓࠋᅗ㸯(a)࡟♧ࡍࡼ࠺࡟ࡑࡢάᛶࡣࠊ࣮ࣞࢨࣇ࣮࢚ࣝࣥࢫࡢୖ᪼࡟

࣮ࣞࢨࣇ࣮࢚ࣝࣥࢫ 100 mJ/cm2 ௨ୗࡢ㡿ᇦకࡗ࡚㧗άᛶ໬ࡋࡓࠋ

࡛ࡣࠊ࣮ࣞࢨࣇ࣮࢚ࣝࣥࢫࡢቑຍ࡜࡜ࡶ࡟࢔
ࢭࢺ࢔ࣝࢹࣄࢻศゎ⬟ࡀቑຍࡍࡿࡇ࡜ࡀࢃ

㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝㸧− 186 −

ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ⏝࠸ࡓ⣽⬊ఙᒎไᚚࡢࡓࡵࡢ
⾲㠃ᵓ㐀ᙧᡂ࡟㛵ࡍࡿ◊✲㏆␥኱Ꮫ⌮ᕤᏛ㒊 ୰㔝ேᚿ࣭ὠᒣ⨾✑ ┠ⓗ ࢳࢱࣥࡣᙉᗘࠊ⪏㣗ᛶࡀ㧗࠸ࡓࡵேᕤṑ᰿ࡸேᕤ㦵ࠊேᕤ㛵⠇➼ࡢ࢖ࣥࣉࣛࣥࢺ⏝⏕యᮦᩱ࡜ࡋ࡚⏝࠸ࡽࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊࢳࢱࣥࡣ⏕య୙άᛶᮦᩱ࡛࠶ࡾࠊάᛶ໬
ࡢࡓࡵࡢ᪂ᶵ⬟ࢆ௜ຍࡍࡿࡇ࡜ࡀồࡵࡽࢀ࡚࠸ࡿࠋࡑࡢ
᭷ຠ࡞᪉ἲࡢ୍ࡘ࡟ᮦᩱ⾲㠃࡟࿘ᮇⓗᚤ⣽ᵓ㐀ࢆᙧᡂࡍࡿࡇ࡜࡟ࡼࡾࠊ⣽⬊ࡢఙᒎ᪉ྥࢆไᚚࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋ⣽⬊ఙᒎไᚚࢆ⾜࠺ࡓࡵࡢ࿘ᮇⓗᚤ⣽ᵓ㐀ࡢᙧᡂ࡟ࡣࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ⏝࠸ࡿࡇ࡜ࡀ᭷ຠ࡛࠶ࡿ[1]ࠋ
ࡇࢀࡲ࡛ࡢ◊✲࡛ࢳࢱࣥ࡟ᑐࡋ࡚࿘ᮇ 775 nm ࡢࣇ࢙࣒ᅗ㸰 ⣽⬊ࡢఙᒎゅᗘ࡜๭ྜࢺ⛊࣮ࣞࢨ࣮ࢆ↷ᑕࡍࡿ࡜ࠊ࿘ᮇ 600 nm ࡢ࿘ᮇⓗᚤ⣽ࢆ⏝࠸࡚⣽⬊ヨ㦂ࢆ⾜ࡗࡓ࡜ࡇࢁࠊ⣽⬊ࡀ⁁࡟ἢࡗ࡚ఙ

3. ◊✲⤖ᯝἼ㛗 775 nm, 388 nm, 258 nm ࡢࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ᒎࡍࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊ࿘ᮇࡀ⣽⬊࡟୚࠼ࡿᙳ㡪ࡣ᫂ࡽගࢆ⣧ࢳࢱࣥᇶᯈ࡟ᤲᘬ↷ᑕࡋ࡚ᙧᡂࡋࡓ࿘ᮇⓗᚤ⣽ᵓ࠿࡟࡞ࡗ࡚࠸࡞࠸ࠋࡇࡢ࿘ᮇⓗᚤ⣽ᵓ㐀ࡢ࿘ᮇࡣἼ㛗࡟㐀ࡢ SEM ほᐹീࢆᅗ㸯࡟♧ࡍࠋE ࡣ࣮ࣞࢨ࣮ගࡢ೫ග

౫Ꮡࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋ

᪉ྥࢆ⾲ࡍࠋᙧᡂࡉࢀࡓ࿘ᮇⓗᚤ⣽ᵓ㐀࿘ᮇࡣ࣮ࣞࢨ࣮

ᵓ㐀ࡀᙧᡂࡉࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗ࡚࠸ࡿࠋ㦵ⱆ⣽⬊ᮏ◊✲࡛ࡣ⣧ࢳࢱࣥ࡟ᑐࡋ࡚Ἴ㛗ࢆኚ໬ࡉࡏ࡚ࣇ࢙࣒

Ἴ㛗ࡀ 775 nm, 388 nm, 258 nm ࡢ᫬ࡑࢀࡒࢀ 600 nmࠊࢺ⛊࣮ࣞࢨ࣮ࢆ↷ᑕࡋࠊ࿘ᮇࡢ␗࡞ࡿ࿘ᮇⓗᚤ⣽ᵓ㐀ࡢ

290 nmࠊ190 nm ࡛࠶ࡗࡓࠋࡑࢀࡒࢀࡢ࿘ᮇⓗᚤ⣽ᵓ㐀ᙧᡂࢆヨࡳࡓࠋ⣽⬊ᇵ㣴ヨ㦂ࢆ⾜࠸ࠊ࿘ᮇࡢኚ໬ࡀ⣽⬊ୖ࡛⣽⬊ᇵ㣴ヨ㦂ࢆ⾜ࡗࡓࠋᅗ㸰࡟ᇵ㣴ࡋࡓ⣽⬊ࡢఙᒎఙᒎ࡟୚࠼ࡿᙳ㡪࡟ࡘ࠸࡚ㄪ࡭ࡓࠋ

ゅᗘ࡜⣽⬊ᩘ඲య࡟༨ࡵࡿ๭ྜࢆ♧ࡋࡓࠋ࿘ᮇⓗᚤ⣽ᵓ㐀ࡢ⁁᪉ྥ࡟ఙᒎࡋ࡚࠸ࡿ⣽⬊ࢆ 90 rࠊࣛࣥࢲ࣒࡟ఙ ◊✲᪉ἲ
ヨᩱ࡟ࡣ⣧ࢳࢱࣥࢆ౑⏝ࡋࡓࠋࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࡢ
ࣃࣝࢫᖜࡣ 150 fs㸪⧞ࡾ㏉ࡋ࿘Ἴᩘ 1 kHz ࡛࠶ࡿࠋἼ㛗ࡣἼ㛗ኚ᥮ჾࢆ⏝࠸࡚ࡑࢀࡒࢀ 775 nm, 388 nm, 258
nm ࡟ኚ໬ࡉࡏࡓࠋ
ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡾᙧᡂࡋ

ᒎࡋ࡚࠸ࡿ⣽⬊ࢆ 0 r࡜ᐃ⩏ࡋࡓࠋ࿘ᮇ 600 nm ࡛᭱ࡶ࿘ᮇⓗᚤ⣽ᵓ㐀ࡢ⁁࡟ἢࡗ࡚ఙᒎࡋ࡚࠸ࡿ⣽⬊ࡢ๭ྜࡀከ࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋ

ࡓ࿘ᮇⓗᚤ⣽ᵓ㐀ࡣ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾(SEM)ࢆ⏝࠸࡚ほ4. ⤖ㄽ
ᮏ◊✲࡛ࡣࢳࢱࣥ࡟ᑐࡋ࡚Ἴ㛗ࢆኚ໬ࡉࡏ࡚ࣇ࢙࣒ࢺ

ᐹࡉࢀࡓࠋࡲࡓࠊ࣮ࣞࢨ࣮↷ᑕᚋࡢヨᩱୖ࡛⣽⬊ᇵ㣴ヨ⛊࣮ࣞࢨ࣮ࢆ↷ᑕࡋࠊ࿘ᮇࡢ␗࡞ࡿ࿘ᮇⓗᚤ⣽ᵓ㐀ࢆᙧ㦂ࢆ⾜ࡗࡓࠋ⣽⬊ᇵ㣴ヨ㦂࡟ࡣ㦵ⱆ⣽⬊㸦MG-63㸧ࢆ౑ᡂࡋࡓࠋ⣽⬊ᇵ㣴ヨ㦂ࢆ⾜࠸ࠊ࿘ᮇࡢኚ໬ࡀ⣽⬊㐍ᒎ࡟⏝ࡋࠊ5%CO2 ࠾ࡼࡧ 37Υ୍࡛ᐃ࡜ࡋࡓ࢖࣮ࣥ࢟ࣗ࣋ࢱ

୚࠼ࡿᙳ㡪࡟ࡘ࠸࡚ㄪ࡭ࡓࠋࡑࡢ⤖ᯝࠊ࿘ᮇ 600 nm ࡛࣮ෆ࡛ 3 ᫬㛫࢖࣮ࣥ࢟ࣗ࣋ࢺࢆ⾜ࡗࡓᚋᅛᐃࡋࡓࠋᅛᐃ

᭱ࡶ࿘ᮇⓗᚤ⣽ᵓ㐀ࡢ⁁࡟ἢࡗ࡚ఙᒎࡋ࡚࠸ࡿ⣽⬊ࡢ๭ࡋࡓ⣽⬊ࡣ୍ḟࠊ஧ḟᢠయࢆ⏝࠸࡚ᰁⰍࢆ⾜ࡗࡓࠋ⣽⬊ྜࡀከ࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋ

ࡢఙᒎ᪉ྥࡣ⺯ග㢧ᚤ㙾ࢆ౑⏝ࡋ࡚ほᐹࡋࡓࠋཧ⪃ᩥ⊩[1] T. Shinonaga, et al: “Applied Surface Science”, Vol. 288,
p.p.649-653, (2014)(ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ࣉࣟࢭࢫᏛศ㔝)ᅗ㸯 ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡾᙧᡂࡉࢀࡓ࿘ᮇⓗᚤ⣽ᵓ㐀ࡢ SEM ほᐹീࠊ࣮ࣞࢨ࣮Ἴ㛗(a)775 nmࠊ(b)388 nmࠊ (c)258 nm− 187 −

ᚤ⢏Ꮚ࣭ࢼࣀ⢏Ꮚࡢᵓ㐀ไᚚ࡜≉ᛶホ౯ 㹼㔠ᒓ࣭㔠ᒓ㓟໬≀⢏Ꮚࡢࢼࣀ࣭࢔ࢺ㓄ิゎᯒ㹼ᅜ❧኱Ꮫἲே⇃ᮏ኱ᏛᕤᏛ㒊࣐ࢸࣜ࢔ࣝᕤᏛ⛉ᶫ᪂ ๛┠ⓗࡇࢀࡲ࡛࡟㧗㏿㐟࣮࣑ᫍ࣎ࣝࣝࢆ⏝࠸ࡓ࢔ࢼࢱ࣮ࢮ⢊య࡜ࢫࢳ࣮࣮ࣝ࣎ࣝ࡜ࡢ⾪✺ᐇ㦂࡟㛵ࡍࡿ௨๓ࡢ
ᡂᯝ 3 ࢆ㊊᥃࠿ࡾ࡜ࡋࠊ࢖࣓ࣝࢼ࢖ࢺ࡜ࢫࢳ࣮࣮ࣝ࣎ࣝ࡜ࡢ⾪✺࢚ࢿࣝࢠ࣮㸦150 G㸧࡟ࡼࡾ㧗࣓ࣝࢼ࢖ࢺࢆᖖ㧗ᅽ┦࢖࡟෾⤖ࡋࡓศᯒⓗドᣐ࡜ࡋ࡚ࠊᨺᑕග XRD ࡟ࡼࡿᕧどⓗ࡞⤖ᬗᅇᢡࠊ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾࡟ࡼࡿᚤどⓗ࡞㟁Ꮚ⥺ᅇᢡࢆᥦ♧ࡋ࡚ࡁࡓ[1]ࠋ
ᮏ◊✲࡛ࡣ㧗㏿㐟࣮࣑ᫍ࣎ࣝࣝ㸦150 G㸧ࡢ⣙ 3 ಸࡢ㐲ᚰຍ㏿ᗘ(420 G)ࢆ᭷ࡍࡿ(ᰴ)ࢩ࣮ࣥ࢟〇ࢼࣀ⢊○ჾ NP-100 ࢆ⏝࠸ࡿࡇ࡜࡛ࠊ⾪✺࢚ࢿࣝࢠ࣮ࡢቑ኱ࡀ㧗 㧗ᅽ┦࢖࣓ࣝࢼ࢖ࢺࡢᙧᡂ࡟ཬࡰࡍᙳ㡪࡟ࡘ
࠸࡚ࠊX ⥺ᅇᢡࣃࢱ࣮ࣥ࡜᱁Ꮚീ࡟ࡼࡿ㠃㛫㝸 ᐃ࠿ࡽ᳨ウࡋࡓࠋᐇ㦂㐲ᚰຍ㏿ᗘࢆᆅ⌫ࡢ㔜ຊຍ㏿ᗘ࡟ᑐࡍࡿẚ࡜ࡋ࡚⾲ࡋࡓ┦ᑐ㐲ᚰຍ㏿ᗘ㸦*㸧ࡣḟᘧ࡛ồࡵࡽࢀࡿࠋ
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81118 u N u r u 10 (G )   >Uබ㌿༙ᚄ FP ࠊ1㸸බ㌿ᅇ㌿ᩘ USP @ࢼࣀ⢊○ᶵ 13 ࡛ࡣࠊᅗ  ࡢᩘ್㸦බ㌿ᅇ㌿ᩘࠊබ㌿༙ᚄ㸧ࢆ௦ධࡋ࡚ࠊ* ࡢ┦ᑐ㐲ᚰຍ㏿ᗘࡀᚓࡽࢀࡿࠋࢫࢳ࣮࣮ࣝ࣎
ࣝ 㸦 686& ࠊ ┤ ᚄ  PP 㸧 ࡜ ⾪ ✺ ᑐ ㇟ ≀ ㉁ 㸦 ࢖ ࣝ ࣓ ࢼ ࢖ ࢺ>0HWD)H7L2ࠊ୕ὠ࿴໬Ꮫ〇@㸧ࢆࢫࢳ࣮࣏ࣝࢵࢺ࡟ᢞධࡋࠊୖ⵹
ࢆ㛢ࡌ࡚⪏⇕࢔ࢲࣉࢱ࣮ࢆ⿦╔ࡋࡓ⾪✺཯ᛂᐜჾ㸦ᅗ D㸧ࢆࢼࣀ⢊○ᶵ࡟タ⨨ࡋࠊUSP ࡢබ㌿࡜⮬㌿ࢆస⏝ࡉࡏࡿࡇ࡜࡛ࠊ
࢖࣓ࣝࢼ࢖ࢺࢆ࣮࣎ࣝ㛫࡜࣏ࢵࢺෆቨ࡜ࡢ⾪✺࡟᭚ࡋࠊ⇕Ⓨ⏕࡜ࡑࢀ࡟⥆ࡃ๧᩿ᛂຊ࡟ࡼࡿᵓ㐀ṍࡳࢆㄏⓎࡉࡏࡓࠋ࡞࠾ࠊ⪏⇕࢔ࢲࣉࢱ࣮ࡢୖ㝈ᗘ Υࢆ㉸࠼࡞࠸ࡼ࠺࡟ࠊUSP *PLQ ࡢ⾪✺ࣉࣟࢭࢫࡢ┤ᚋ࡟ USP * PLQ ࡢ෭༷ࣉࣟࢭࢫࢆ⾜࠸ࠊࡇࢀࢆࢭࢵࢺ࡜ࡋ࡚⧞ࡾ㏉ࡋࡓ㸦⾪✺᫬㛫 PLQࡢሙྜࡣ  ࢭࢵࢺ㸧ࠋ ⾪✺ᐇ㦂ᚋࡢ⏕ᡂ≀ࡢ┦ࡢྠᐃ࡟ࡣ⢊ᮎ X ⥺ᅇᢡ㸦Ultima4,⌮Ꮫ㟁ᶵ〇㸧ࢆ⏝࠸ࡓࠋ࡞࠾ࠊḟ㡯ࡢᅗ 2 ࡟ẚ㍑ᑐ㇟࡜ࡋ࡚♧ࡋࡓ 150 G ࡢ⾪✺ᐇ㦂࡛ᚓࡽࢀࡓ⏕ᡂ≀ࡢᨺᑕග XRD ࣃࢱ࣮ࣥࡣ኱ᆺࢹࣂ࢖࣭ࢩ࢙࣮࣓ࣛ࢝ࣛ (BL02B2, 0.35441 Å [35keV])࡟タ⨨ࡋ࡚ᅇᢡᐇ㦂ࢆ⾜ࡗࡓ⤖ᯝ࡛࠶ࡿࠋ
⾪✺ᐇ㦂ᚋࡢ⏕ᡂ≀ࡢཎᏊ㓄ิࡢほᐹ࡟ࡣ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾㸦JEM-2100F, ᪥ᮏ㟁Ꮚ〇㸧ࢆ⏝࠸ࡓࠋ⏕ᡂ≀ࡢ 0.1wt%࢚ࢱࣀ࣮ࣝᠱ⃮ᾮࢆ㉸㡢Ἴศᩓ㸦45 kHz10 min㸧ࡉࡏࡓᾮ⁲㸦1 mL㸧ࢆ࣐࢖ࢡࣟࢢࣜࢵ
ࢻ࣓ࢵࢩࣗ㸦ࣁ࢖ࣞࢰ࣮ࣜࣗࢩ࣮ࣙࣥ࢝࣎ࣥᨭᣢ⭷, ᛂ◊ၟ஦〇㸧࡟⁲ୗ࣭஝⇱ᚋࠊほᐹ࡟౪ヨࡋࡓࠋ− 188 −

⤖ᯝ
3.5

3.0

2.5

2.0

2.90 2.80 2.70 2.60 2.50 2.40

1.5

(B)
150 G - 24 h
100 G - 24 h(c) 420 G - 20 min

2.0

Revolutiontime/h2424240.50(30min)
0.33(20min)
0.17(10min)0

ortho-Fe 2TiO 4(30-43 GPa, 1500-2500 K)

No.229 Fe(1 1 0)(0 2 3)(1 0 4)(1 0 0)(152)

No.248 Trigonal FeTiO 3

(110)

3.0
2.5
d spacing / ύCentrifucationforce/G
150
100
50
420
420
420
0

(d) 420 G - 30 min(b) 420 G - 10 min(a) Meta-FeTiO3

(200)

(024)

(116)
(018)
(214)
(300)

(113)
(131)

(104)
(100)

3.5

(e) 50 G - 24 h

M-FeTiO 3(Intensity 1/10)

(110)
(023)

(110)

420 G - 30 min
420 G - 20 min
420 G - 10 min(012)

Intensity [a. u.]

50 G - 24 h

4.0(g) 150 G - 24 h(f) 100 G - 24 h

Intensity [a. u.](A)(1 1 0)4.0

ortho-Fe2TiO4
No.148 Trigonal FeTiO3

2.90 2.80 2.70 2.60 2.50 2.40
d spacing / ύᅗ 2 ⾪✺࢚ࢿࣝࢠ࣮ࡀ㠃㛫㝸࡟ཬࡰࡍᙳ㡪(A)㠃㛫㝸 1.4㹼4.0ύࠊ㸦B㸧㠃㛫㝸 2.4㹼2.9ύ

1.5

⾲ 1 ⾪✺࢚ࢿࣝࢠ࣮ࠊ㠃㛫㝸ࠊ᱁Ꮚయ✚Collisionenergy/J/ball
7934
4329
1525
1050
700
350
0

d(104)/䊅
2.72392.72392.68452.72802.72802.7280d(110)/䊅 Latticevolume/䊅3
2.4998㻞㻥㻥㻚㻝
2.5309㻟㻜㻤㻚㻥
2.5340㻟㻜㻥㻚㻢
2.4924㻞㻥㻡㻚㻢
2.7069 2.5227
㻟㻜㻟㻚㻜
2.7069 2.5227
㻟㻜㻢㻚㻡
2.5210㻟㻝㻝㻚㻣d(110)*/䊅
2.7130Compactionrate/%
㻠㻚㻜
㻜㻚㻥
㻜㻚㻣
㻡㻚㻞
㻞㻚㻤
㻝㻚㻣
㻜

࣮࣎ࣝ࠿ࡽࡢ㕲ࡢࢥࣥࢱ࣑ࡣ㧗㏿㐟࣮࣑ᫍ࣎ࣝࣝࢆ⏝࠸ࡓ 150 G ࡛ 24᫬㛫ࡢฎ⌮࡛᭱ࡶከ࠸ࡀࠊࢼࣀ⢊○ჾࢆ⏝࠸ࡓ 420 G ࡛ 30 ศࡢฎ⌮࡛ࡣ࡯࡜ࢇ࡝㕲ࡢࢥࣥࢱ࣑ࡀㄆࡵࡽࢀ࡞࠸㸦ᅗ 2-A㸧ࠋᚋ⪅ࡢฎ⌮᫬㛫ࡀ▷࠸᮲௳㸦420 G - 20 ศ㸧࡛㕲ࡢࢥࣥࢱ࣑ࡀᏑᅾࡍࡿ࡜ࡣ⪃࠼ࡀࡓ࠸ࠋ㧗㧗ᅽ┦࢖࣓ࣝࢼ࢖ࢺ㸦Fe2TiO4㸧ࡣ㧗㧗ᅽୗ࡛ศゎ⏕ᡂ≀࡛࠶ࡿ FeO

࡜ᩳ᪉ᬗ୰㛫┦㸦OI-TiO2㸧ࡢඹᏑࡀ☜ㄆࡉࢀ࡚࠸ࡿ[2]ࠋFeO ࡢ d200[2.156
ύ]ࡣ Fe ࡢ d110[2.027 ύ]ࡼࡾࡶᑡࡋ኱ࡁࡃࠊFe2TiO4 ➨㸲ࣆ࣮ࢡࡢᅗ 3 ཎᏊࣞ࣋ࣝゎᯒd131[2.05 ύ]ࡼࡾࡶᑠࡉ࠸ࠋࡇࢀࡽࡢࡇ࡜࠿ࡽࠊFe ࡢ(110)࡟㏆ഐ࡟Ꮡᅾࡍࡿࣆ࣮ࢡࡣ FeO ࡜ Fe2TiO4 ࡢඹᏑࢆ⾲ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋ

୍᪉ࠊ150 G ࡜ 420 G ࡢ⾪✺࢚ࢿࣝࢠ࣮ᕪ࡟ࡼࡿ㠃㛫㝸ࡢῶᑡࡣⴭࡋ࠸㸦ᅗ 2-B-d, g㸧ࠋ୕᪉ᬗ⣔ࢆභ᪉ᬗ⣔࡜ࡋ࡚ィ⟬ࡋࡓ᱁Ꮚయ✚ࡀ⾪✺࢚ࢿࣝࢠ࣮࡟ࡼࡗ࡚࡝ࡢ⛬ᗘᅽ⦰ࡉࢀࡓࡢ࠿ࢆ⾲ 1 ࡟♧ࡍࠋ420 G ࡛ 30ศࡢฎ⌮ࢆ⾜ࡗࡓ᪉ࡀࠊ150 G ࡛ 24 ᫬㛫ࡢฎ⌮ࡼࡾࡶຠᯝⓗ࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡲࡓࠊ๓⪅ࡢ᪉ࡀ࣮࣎
ࣝ㸯ಶᙜࡓࡾࡢ⾪✺࢚ࢿࣝࢠ࣮ࡀᑡ࡞࠸ࡓࡵࠊຠ⋡ⓗ࡟㧗㧗ᅽ┦ࢆᐊ࡟෾⤖ࡉࡏࡿᡭἲ࡜ࡋ࡚㐺ࡋ࡚

࠸ࡿࠋ5.2㸣ࡢ᱁Ꮚయ✚ࡢᅽ⦰⋡ࢆ♧ࡋࡓ࢖࣓ࣝࢼ࢖ࢺࡢ㧗ศゎ⬟ TEM ീࢆᅗ 3 ࡟♧ࡍࠋOI-TiO2 ࡣᅇᢡࣆ࣮ࢡ࡜ࡋ࡚᫂░࡟⌧ࢀ࡞࠿ࡗࡓࡀࠊཎᏊ࡛ࣞ࣋ࣝࡣ Fe2TiO4 ࡜ࡢඹᏑࡀほᐹࡉࢀࡓࠋཧ⪃ᩥ⊩1) T. Hashishin, S. Ohara, et al., Scientific Reports, 4, 4700-1-6 (2014).
2) D. N. Hamane, et al., Am. Mineral., 97, 568-572 (2012).
㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝㸧− 189 −

ᅛయ࢖࢜ࣥ஺᥮ἲ࡟ࡼࡿ࢞ࣛࢫ୰࡬ࡢ㔠ᒓᒙᙧᡂ
༓ⴥ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ ᯇᆏኊኴ
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ෆ㒊࡟㔠ᒓ࢖࢜ࣥࢆᑟධࡍࡿࡇ࡜࡟ࡼࡾ㸪࢞ࣛࢫ⮬యࡢ࣮ࣞࢨຍᕤ≉ᛶࡢྥୖࢆᅗࡗ࡚ࡁࡓ㸬ࡑࡢ◊✲㐣⛬࡟࠾࠸࡚㸪㔠ᒓ࢖࢜ࣥࢆῧຍࡋࡓᚋ㸪ῧຍ᫬࡜ࡣ㏫᪉ྥࡢ㟁ᅽ༳ຍࢆ⾜࠺ࡇ࡜࡟ࡼࡾ㸪࢞ࣛࢫෆ㒊࡟㔠ᒓᒙࡀᯒฟࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࡢ࡛ሗ࿌ࡍࡿ㸬
U2. ౪ヨᮦᩱ࠾ࡼࡧᐇ㦂᪉ἲU ᐇ㦂࡟౑⏝ࡋࡓ࢞ࣛࢫࡣ࣍࢘ࢣ࢖㓟࢞ࣛࢫ(Schott㸪TEMPAX㸪25251.1mm3)࡛࠶ࡾ㸪⣧Ag⟩㸦ᯈཌ㸸
10 Pm㸧࡜㔜ࡡྜࢃࡏ࡚㧗┿✵୰(< 1.0 x 10-3 Pa)࡟タ⨨ࡋࡓᚋ㸪㞺ᅖẼ ᗘ623 K㸪༳ຍ㟁ᅽ100 V㸦㔠ᒓ⟩ഃࢆ㝧ᴟ㸧㸪༳ຍ᫬㛫10.8 ksࡢ᮲௳࡛㟁ᅽ༳ຍ㸦㡰㟁ᅽ㸧ࢆ⾜ࡗࡓ㸬ࡑࡢᚋ㸪㟁ሙࡢᴟᛶࢆ཯㌿ࡉࡏ㸪ྠ᮲௳࡛㟁ᅽ༳ຍ㸦㏫㟁ᅽ㸧ࢆ⾜ࡗࡓ㸬స〇ࡋࡓ࢞ࣛࢫヨᩱ࡟ᑐࡋ㟁Ꮚ㢧ᚤ㙾ほᐹ(SEM, TEM)ࢆ⾜ࡗࡓ㸬
3. ᐇ㦂⤖ᯝ Fig. 1 (a)㹼(c) ࡟㡰㟁ᅽ༳ຍ๓㸪㡰㟁ᅽ༳ຍᚋ㸪㏫㟁ᅽ༳ຍᚋࡢヨᩱእほࢆ♧ࡍ㸬ྠᅗ࠿ࡽศ࠿ࡿࡼ࠺
࡟㸪㡰㟁ᅽ༳ຍᚋ㸦㏫㟁ᅽ༳ຍ๓㸪Fig. 1 (b)㸧࡟ࡣᴫࡡ㏱᫂ᛶࢆ⥔ᣢࡋ࡚࠸ࡓヨᩱࡀ㸪㏫㟁ᅽ༳ຍᚋ(Fig.
1 (c))࡟ࡣ㖟Ⰽࡢᯒฟ≀࡟ࡼࡾ㸪㏱᫂ᛶࢆኻࡗ࡚࠸ࡿ㸬Fig. 2 ࡟㸪࢞ࣛࢫ⾲㠃㏆ഐࡢ᩿㠃SEMീ࠾ࡼࡧTEMീࢆ♧ࡍ㸬ྠᅗ(a) ࡣ㏫㟁ᅽ༳ຍ๓࡛࠶ࡾ㸪㖟࢖࢜ࣥῧຍ㡿ᇦ࡜ᮍῧຍ㡿ᇦ࡟ࡣ㸪ࢥࣥࢺࣛࢫࢺ࡟ⱝᖸࡢ
ᕪ␗ࡀㄆࡵࡽࢀࡿ㸬୍᪉㸪㏫㟁ᅽ༳ຍᚋࡢྠᅗ(b)࡛ࡣ㸪㖟ῧຍ㡿ᇦࡢ᭱῝㒊㸦ῧຍ㡿ᇦ࡜ᮍῧຍ㡿ᇦࡢቃ⏺௜㏆㸧ࡢᖜ20 Pm⛬ᗘࡢ㡿ᇦ࡟⣽⥺≧ࡢᯒฟ≀ࡀㄆࡵࡽࢀࡓ㸬TEMほᐹࡢ⤖ᯝ(Fig. 2 (c), (d))㸪ࡇࡢᯒฟ≀ࡣ┤ᚄ300 nm௨ୗࡢ㖟ࢼࣀ࣡࢖ࣖࡢࢿࢵࢺ࣮࣡ࢡ࡛ᵓᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡑࡇ࡛㸪Fig. 3(a) ࡟♧ࡍࡼ࠺࡞⥺≧ࡢ㖟⟩ࢆ⏝࠸࡚࢞ࣛࢫෆ㒊࡬ࡢ㖟㓄⥺ࡢస〇ࢆヨࡳࡓ࡜ࡇࢁ㸪ྠᅗ(b)࡟♧ࡍࡼ࠺࡟㸪౑⏝ࡋࡓ㖟⟩ࡢᙧ≧ࢆṇ☜࡟࢞ࣛࢫෆ㒊࡬㌿෗ࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡗࡓ㸬㓄⥺ࡢ୧➃㛫࡛ࡢ㟁Ẽ᢬ᢠ⋡ᐃࡢ⤖ᯝ㸪ࡇࡢᯒฟ≀ࡀ⣧㖟࡟㏆࠸㸪㧗࠸㟁Ẽఏᑟᗘࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬

Fig. 1 Surfaces of glass slides (a) with no ion exchange, (b) with only
forward applied voltage, and (c) both forward and reverse applied
voltages.

(a)Fig. 3 Preparation of embedded electricalcircuit in the glass matrix. (a) Used silver foil,(b) appearance of silver precipitated glass.

(c)

(b)

(d)

Fig. 2 Cross-sectional micrographs of the ion-exchanged glass slides. SEM images (a) before and (b) after applying
reverse voltage. (c) and (d) Bright-field TEM images of silver precipitates. Inset in (d): electron diffraction pattern for the
precipitate.

㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝㸧− 190 −

ࣉࣛࢬࣔࢽࢵࢡࢹࣂ࢖ࢫ࡟ྥࡅࡓᚤ⢏Ꮚࣅ࣮࣒࡟ࡼࡿᶵ⬟ᛶⷧ⭷ࡢస〇࡜ホ౯ᡤᒓ  ᅜ❧◊✲㛤Ⓨἲே ⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ ↓ᶵᶵ⬟ᮦᩱ◊✲㒊㛛Ặྡ  ᮧ஭ ೺௓㸯㸬┠ⓗ 㔠ᒓ㸫ㄏ㟁య㸫㔠ᒓ㸦MIM㸧ᵓ㐀ࡼࡾᡂࡿࣉࣛࢬࣔࢽࢵࢡࢹࣂ࢖ࢫ[1]ࡢᐇ⌧࡟ࡣࠊㄏ㟁యⷧ⭷㸦I
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ᅗ 2 AD ἲ࡟ࡼࡿ TiO2 ࢥ࣮ࢸ࢕ࣥࢢ⤖ᯝ㸸⤖ᯝ㸦  ᚟㸧㸸㖡ᇶᯈࡢ◊☻࠶ࡾ㸦ᕥ㸧࢞ࣛࢫᇶᯈ㸦ᇶᯈ 1㸧࡜㖟ⷧ⭷࠶ࡾ㸦ᇶᯈ 2&3㸧࡜◊☻࡞ࡋ㸦ྑ㸧㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝㸧− 192 −

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ࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ࡛㛤Ⓨࡋࡓࣇ࢓࢖ࣂ࣮࣮ࣞࢨᦚ㍕ࡢ SLM㸦㑅ᢥⓗ࣮ࣞࢨ⁐⼥ἲ㸧⿦⨨ࢆ౑⏝ࡋࠊ㐀ᙧ㞺ᅖẼࡢ㐪࠸࡟ࡼࡿ㐀ᙧ≀ࡢ⾲㠃ᛶ≧࡬ࡢᙳ㡪ࢆㄪ࡭ࡓࠋ
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⾲ 2 ࢳࣕࣥࣂ࣮ෆᅽຊ
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ᅽຊ 㸦3D  
㛤㛢䝞䝹䝤

㛤㛢䝞䝹䝤

ᅗ 1 SLM ⿦⨨ࡢᴫ␎ᅗ


− 193 −

㞺ᅖẼ┿✵࢔ࣝࢦࣥ࢞ࢫ

䠏䠊ᐇ㦂⤖ᯝ 㐀ᙧᚋࠊゐ㔪ᘧ⾲㠃⢒ࡉィ㸦Form Talysurf PGI1200ࠊࢸ࣮࣮࣭ࣛ࣍ࣈࢯࣥ♫〇㸧ࢆ⏝࠸࡚⾲㠃⢒ࡉࡢᐃࢆ⾜࠸ࠊ⾲㠃⢒ࡉࢆホ౯ࡋࡓࠋ⾲㠃⢒ࡉ Ra ࡢホ౯⤖ᯝࢆᅗ 2 ࡟♧ࡍࠋ࣮ࣞࢨගฟຊ 50W ཬࡧ 100W ඹ࡟ࠊࢳࣕࣥࣂ࣮ෆᅽຊࡀ㧗ࡃ࡞ࡿ࡟ࡘࢀ⾲㠃ࡀ⢒ࡃ࡞ࡿഴྥ࡜࡞ࡗࡓࠋࡇࢀࡣࠊᅽຊࡀ㧗ࡃ࡞ࡿࡇ࡜࡟ࡼࡾࠊ㔠ᒓࡢ⁐⼥࡟క࠺⇕⭾ᙇࡀ㜼ᐖࡉࢀ⼥Ⅼࡀ㧗ࡃ࡞ࡾᮍ⁐⼥㒊ศࡀⓎ⏕ࡋࡓࡇ࡜ࡀ୍ᅉ࡜ࡋ࡚⪃࠼ࡽࢀࡿࠋࡲࡓࠊ
㐀ᙧ᫬ࡢほᐹࢆ⾜ࡗࡓ࡜ࡇࢁࠊᅗ 3 ࡟♧ࡍࡼ࠺࡟࢔ࣝࢦࣥ࢞ࢫ㞺ᅖẼୗ࡟࠾ࡅࡿ㐀ᙧ᫬࡟ࡣࠊ࣮ࣞࢨࣅ࣮࣒
ࡢග⥺ୖ࡟㯮Ⰽࡢ↮ᵝࡢࣄ࣮࣒ࣗࡀከ㔞࡟Ⓨ⏕ࡋ࡚࠾ࡾ࣮ࣞࢨගࡢ㐀ᙧ㠃࡬ࡢ฿㐩ࢆጉࡆ࡚࠸ࡿࡇ࡜ࡀࢃ࠿
ࡿࠋࡇࢀ࡟ࡼࡾࠊ㐀ᙧ㠃࡟࠾ࡅࡿࣃ࣮࣡ᐦᗘࡀపୗࡋ㔠ᒓ⢊ᮎࡢ⁐⼥ࡀⰋዲ࡟⾜࡞࠼ࡎ⾲㠃ࡀ⢒ࡃ࡞ࡗࡓ࡜
ࡶ⪃࠼ࡽࢀࡿࠋ
ࡲࡓࠊ⾲㠃⢒ࡉࡢ⤖ᯝ࡟࠾࠸࡚ࠊྠᅽຊୗࡢ࣮ࣞࢨගฟຊࡢ㐪࠸ࢆẚ㍑ࡍࡿ࡜ࠊ࢔ࣝࢦࣥ࢞ࢫ㞺ᅖẼୗ࡟
࠾ࡅࡿ 0.1MPa ࠾ࡼࡧ 0.01MPa ࡛ࡣࠊ࣮ࣞࢨගฟຊࡢ㧗࠸᪉ࡀ⾲㠃ࡀ⢒࠸⤖ᯝ࡜࡞ࡗ࡚࠸ࡿࠋᮏ᮶ࡣࠊ࣮ࣞ
ࢨගฟຊࡢ㧗࠸᪉ࡀࣃ࣮࣡ᐦᗘࡀ㧗ࡃ࡞ࡾࠊ㔠ᒓ⢊ᮎࡀ⁐⼥ࡋࡸࡍࡃࠊ⾲㠃ࡀ⁥ࡽ࠿࡟࡞ࡿࡣࡎ࡛࠶ࡿ(1)ࠋ
ࡇࢀ࡟㛵ࡋ࡚ࡣࠊ㧗ฟຊࡢ᪉ࡀࣄ࣮࣒ࣗࡀከࡃⓎ⏕ࡋࠊ㔠ᒓ⢊ᮎࡀ⁐⼥ࡋ㞴ࡃ࡞ࡾ⾲㠃⢒ࡉ࡟ᙳ㡪ࢆ୚࠼ࡓ࡜⪃࠼ࡽࢀࡿࠋ

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㻌㻝㻜㻜㼃

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㻣

㻡

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㻾㼍㻌㻔ȝ 㼙㻕

㻢

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ͤ䜹䝑䝖䜸䝣䝣䜱䝹䝍ʄc0.8mm䛻䜘䜚ホ౯㻜㻝㻱㻙㻡㻝㻜㻜㻜㻜㻜

䝏䝱䞁䝞䞊ෆᅽຊ䚷㻔㻼㼍㻕     ᅗ 2 ⾲㠃⢒ࡉࡢホ౯         ᅗ 3 ࢔ࣝࢦࣥ࢞ࢫ㞺ᅖẼୗࡢ㐀ᙧ෗┿䠐䠊䜎䛸䜑㻌
ᮏ◊✲࡛ࡣࠊ㐀ᙧ㞺ᅖẼࡢᅽຊࡢ㐪࠸࡟ࡼࡿ⾲㠃ᙧ≧࡬ࡢᙳ㡪ࢆㄪ࡭ࡓࠋ⾲㠃⢒ࡉࢆホ౯ࡋࡓ࡜ࡇࢁࠊᅽ
ຊࡀ㧗ࡃ࡞ࡿ࡯࡝⾲㠃ࡀ⢒ࡃ࡞ࡿഴྥ࡜࡞ࡗࡓࠋ୍᪉ࠊ㐀ᙧ᫬࡟࠾ࡅࡿࣄ࣮࣒ࣗࡢᙳ㡪ࢆཷࡅ⾲㠃ࡀ⢒ࡃ࡞ࡗ࡚࠸ࡿࡇ࡜ࡀ⪃࠼ࡽࢀࠊ௒ᚋࣄ࣮࣒ࣗࡢᙳ㡪ࢆྲྀࡾ㝖࠸ࡓ᳨ドࡀᚲせ࡛࠶ࡿࠋ䠑䠊ཧ⪃ᩥ⊩㻌1)Y.Sato,M.Tsukamoto,㸤Y.YamashitaࠊSurface morphology of Ti-6Al-4V plate fabricated by vacuum selective laser
meltingࠊApplied Physics B 㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝㸧− 194 −

㓟໬ࢳࢱࣥෆ㒊ࡢ㟁Ẽ᢬ᢠῶᑡࡢࡓࡵࡢࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮㞟ග↷ᑕ㏆␥኱Ꮫ⌮ᕤᏛ㒊ྜྷ⏣ᐇ㸬 ┠ⓗ
㓟໬ࢳࢱࣥ࡟ࡣගゐ፹ᶵ⬟ࡸ㧗ㄏ㟁⋡ࠊ㧗⪏㣗ᛶࠊගᑟ㟁ᛶࠊගᩓ஘ᛶ࡜࠸ࡗࡓᛶ㉁ࡀ࠶ࡾࠊ᭦࡞ࡿᛂ⏝⠊ᅖᣑ኱ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋᡃࠎࡣࡇࢀࡲ࡛ࡢ◊✲࡛ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ⏝࠸࡚㓟໬ࢳࢱࣥ⭷⾲㠃ࡢᒁᡤ㡿ᇦ࡟᪂ᶵ⬟ࢆ௜ຍࡍࡿᐇ㦂ࢆ⾜ࡗ࡚ࡁࡓࠋ࢚࢔ࣟ
ࢰࣝࣅ࣮࣒ࢆ⏝࠸࡚࢞ࣛࢫᇶᯈୖ࡟ᙧᡂࡋࡓ㓟໬ࢳࢱࣥ⭷࡟ᑐࡋ࡚ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࡢ↷ᑕࢆ⾜࠺࡜ࠊ࣮ࣞࢨ࣮↷ᑕ㒊ࡀᙧ≧ኚ໬ࡏࡎ࡟㯮Ⰽ໬ࡍࡿࠋ㯮Ⰽ໬㡿ᇦ࡛ࡣ㟁Ẽ᢬ᢠ್ࡀῶᑡࡍࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋ࡚
ࡁࡓ[1]ࠋࡇࡢ⌧㇟ࡣ㓟໬ࢳࢱࣥ⭷ࡢෆ㒊࡟㓟⣲Ḟ㝗ࡀ⏕ࡌ࡚࠸ࡿࡇ࡜ࡀཎᅉ࡛࠶ࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿࠋ࢞ࣛ
ࢫᇶᯈ࡛࢝ࣂ࣮ࡉࢀ✵Ẽ࡜᥋ゐࡋ࡞࠸㓟໬ࢳࢱࣥ⭷⾲㠃࡟ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ↷ᑕࡋࡓ࡜ࡇࢁࠊ࣮ࣞࢨ
࣮↷ᑕ㒊ࡢ㟁Ẽ᢬ᢠ್ࡀῶᑡࡋ࡚࠸ࡓ[2]ࠋࡇࡢ⤖ᯝࡣ㓟໬ࢳࢱࣥ⤖ᬗෆ㒊ࡢ㟁Ẽ᢬ᢠ್ࢆῶᑡࡉࡏࡽࢀࡿ
ࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ㓟໬ࢳࢱࣥ༢⤖ᬗෆ㒊࡟ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ㞟ග↷ᑕࡋࠊ㓟໬ࢳࢱࣥ༢⤖ᬗෆ㒊ࡢ㟁Ẽ᢬ᢠ್ࢆῶᑡࡉࡏࡿࡇ࡜ࢆ
┠ⓗ࡜ࡋࡓࠋᅗ㸯࡟ࠊᐇ㦂⿦⨨ᴫ␎ᅗࢆ♧ࡍࠋヨᩱෆ㒊࡟࣮ࣞࢨ࣮ගࢆ㞟ගࠊᤲᘬࡍࡿࠋ࣮ࣞࢨ࣮↷ᑕ㒊ࡢ㟁Ẽ᢬ᢠ್ࢆㄪ࡭ࡿࠋ
㸬◊✲᪉ἲ
ᮏᐇ㦂ࡢヨᩱ࡜ࡋ࡚ 7 mm9 mm3 mm ࡢ㓟໬ࢳࢱࣥ༢⤖ᬗࢆ⏝࠸ࡓࠋᅗ㸯࡟♧ࡍࡼ࠺࡟㓟໬ࢳࢱࣥ༢⤖ᬗෆ㒊࡟ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ㞟ග↷ᑕࡋࠊ㞟ගࢫ࣏ࢵࢺࢆᤲᘬ↷ᑕࡍࡿࡇ࡜࡟ࡼࡾ㟁Ẽᑟ㏻㊰ࢆసᡂ
ࡋࡓࠋᮏᐇ㦂࡟⏝࠸ࡓࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࡢἼ㛗ࠊࣃࣝࢫᖜࠊ⧞ࡾ㏉ࡋ࿘Ἴᩘࡣྛࠎ800 nmࠊ100 fsࠊ1 kHz࡛࠶ࡿࠋ࣮ࣞࢨ࣮ࣇ࣮࢚ࣝࣥࢫࡣ࢚ࢿࣝࢠ࣮ῶ⾶ჾࢆ⏝࠸࡚ไᚚࡋࡓࠋ㟁Ẽᑟ㏻㊰ᙧᡂࡢࡓࡵࠊࢫࢸ࣮ࢪࢆ
᧯సࡍࡿࡇ࡜࡟ࡼࡾ㞟ග㒊ࡢᤲᘬ㏿ᗘࢆኚ໬ࡉࡏࡓࠋ
࣮ࣞࢨ࣮↷ᑕ㒊࡟ᑐࡋࢫࣃࢵࢱࣜࣥࢢ࡟ࡼࡾ㔠ࢆࢥ࣮ࢸ࢕ࣥࢢࡋ࡚㟁ᴟ࡜ࡍࡿࡇ࡜࡟ࡼࡾࠊ࣮ࣞࢨ࣮↷ᑕ㒊ࡢ㟁Ẽ᢬ᢠ್ࢆ஧➃Ꮚἲ࡛ ᐃࡋࡓࠋ㸬◊✲⤖ᯝ
࣮ࣞࢨ࣮↷ᑕᚋࠊ↷ᑕ㒊ศࡢ㟁Ẽ᢬ᢠ್ῶᑡࢆ☜ㄆ࡛ࡁࡓࠋ࣮ࣞࢨ࣮ᮍ↷ᑕࡢ㡿ᇦ࡛ࡣ㟁Ẽ᢬ᢠ್ࡀ኱ࡁࡃᡃࠎࡢ ᐃჾࢆ⏝࠸࡚㟁Ẽ᢬ᢠ್ࢆ ᐃࡍࡿࡇ࡜ࡀ࡛ࡁ
࡞࠿ࡗࡓࠋ㓟໬ࢳࢱࣥ༢⤖ᬗෆ㒊࡟ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆࡑࢀࡒࢀ࣮ࣞࢨ࣮ᙉᗘ 1.1ࠊ1.9ࠊ2.5ࠊ3.2ࠊ3.8ࠊ4.5

1014 W/cm2 ࡛↷ᑕࡋࡓ࡜ࡁࡢ࣮ࣞࢨ࣮↷ᑕ㒊ࡢ㟁Ẽ᢬ᢠ್ࢆ ᐃࡋࡓࠋࡑࡢ᫬ࡢ㟁Ẽ᢬ᢠ್ࡣࡑࢀࡒࢀࠊ5.6ࠊ1.1ࠊ
1.4ࠊ1.9ࠊ2.7ࠊ2.7106Ȑ/mm ࡜࡞ࡗࡓࠋࡇࢀࡽࡢ⤖ᯝࡼࡾࠊ࣮ࣞࢨ࣮ᙉᗘ 1.91014 W/cm2 ࡟࠾࠸࡚㟁Ẽ᢬ᢠ್ࡀ᭱ࡶῶᑡࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ2.41014 W/cm2
௨ୖࡢ࣮ࣞࢨ࣮ᙉᗘ࡛ࡣࠊ1.91014 W/cm2 ࡢ࣮ࣞࢨ࣮ᙉ
ᗘࡢ᫬࡜ẚ࡭㟁Ẽ᢬ᢠ್ࡀቑຍࡋࡓࠋ㓟໬ࢳࢱࣥ༢⤖ᬗࡢ㟁Ẽ᢬ᢠ್ῶᑡࡣ࣮ࣞࢨ࣮ᙉᗘ࡟౫Ꮡࡋ࡚࠾ࡾࠊ᭱ࡶ
㟁Ẽ᢬ᢠ್ࡀῶᑡࡍࡿ࣮ࣞࢨ࣮ᙉᗘࡀᏑᅾࡍࡿࡇ࡜ࡀุ
᫂ࡋࡓࠋࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮

ᤲᘬ᪉ྥ

ᑐ≀ࣞࣥࢬ

㓟໬ࢳࢱࣥ༢⤖ᬗᅗ㸯 ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕᐇ㦂ᴫ␎ᅗ㸬⤖ㄽᮏ◊✲࡛ࡣࠊ㓟໬ࢳࢱࣥ༢⤖ᬗෆ㒊࡟ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࡢ㞟ග↷ᑕࢆ⾜ࡗࡓ⤖ᯝࠊᒁᡤⓗ࡟㓟໬ࢳࢱࣥࡢ㟁Ẽ᢬ᢠ್ࢆῶᑡࡉࡏࡿࡇ࡜ࡀ࡛ࡁࡓࠋࡲࡓࠊ㓟໬ࢳࢱࣥ༢⤖ᬗࡢ㟁Ẽ᢬ᢠ್ࡢῶᑡࡣ࣮ࣞࢨ࣮ᙉᗘ࡟౫Ꮡࡍࡿࡇ
࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋ
ཧ⪃ᩥ⊩[1]M. Tsukamoto et al: “Control of electrical resistanceof TiO2 films by short-pulse laser irradiation”, Appl.
Phys. A 93, pp. 193-196 (2008)[2]ᇼཱྀ┤ே௚㸪࣮ࣞࢨ࣮Ꮫ఍Ꮫ⾡ㅮ₇఍➨ 31 ᅇᖺḟ኱
఍ㅮ₇09pVI03 2011 㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࣅ࣮࣒ࣉࣟࢭࢫᏛศ㔝㸧− 195 −

」ྜᮦᩱࡢ⇕≀ᛶホ౯㸦⊂㸧⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ ᮦᩱ≀ᛶ⛉ ⇕≀ᛶᶆ‽◊✲ᐊ㜿Ꮚᓥ ࡵࡄࡳ
㸯㸬◊✲ࡢ⫼ᬒ」ྜᮦᩱ࡟ࡣࠊࣇ࢕࣮ࣛࢆศᩓࡉࡏࡓᮦᩱࡸᒙ≧࡟㔜ࡡࡓᮦᩱࠊ⢏Ꮚ࡜⧄⥔ࢆΰྜࡋࡓᮦᩱ࡞࡝ࡀ࠶ࡿࠋ
㏆ᖺ࡛ࡣࠊ࢚ࢿࣝࢠ࣮ၥ㢟ࢆ⫼ᬒ࡟ࠊ」ྜᮦ࡜ࡍࡿࡇ࡜࡛ᶵ⬟ࢆྥୖࡉࡏࡓ᩿⇕ᮦࡀὀ┠ࡉࢀ࡚࠸ࡿࠋ౛࠼
ࡤࠊ⧄⥔ࡸࢫ࣏ࣥࢪࡢ᩿⇕ᮦࢆ㧗ศᏊࣇ࢕࣒ࣝࡸ࢔࣑ࣝ⟩➼࡛࣑ࣛࢿ࣮ࢺࡋ࡚ෆ㒊ࢆ┿✵࡟ࡋࡓ┿✵᩿⇕ᮦࠊ⇕ఏᑟ⋡ࡀⰋࡃ࡞࠸Ẽయࢆ㛢ࡌ㎸ࡵࡓ㛢ẼᏍࢆᣢࡘⓎἻᮦࠊ࢚࢔ࣟࢤࣝࠊࢼࣀ⢏Ꮚࢆ฼⏝ࡋࡓᮦᩱ࡞࡝ࡀ࠶
ࡿࠋ⇕ఏᑟ⋡ࡸ⇕ᣑᩓ⋡ࡣ㍺㏦≉ᛶ࡛࠶ࡾࠊ≀㉁ࡔࡅ࡛ࡣ࡞ࡃᵓ㐀࡟ᑐࡋ࡚ࡶᩄឤ࡛࠶ࡿࡓࡵࠊᮦᩱẖ࡟ᐃࡍࡿᚲせࡀ࠶ࡿࠋ
᩿⇕ᮦࡢ⇕ఏᑟ⋡ࡣࠊᐃᖖἲ࡟ࡼࡾ

ᐃࡉࢀࡿࡇ࡜ࡀከ࠸ࠋᐃᖖἲࡣࠊ⇕ఏᑟ⋡ࡀẚ㍑ⓗᑠࡉࡃᐦᗘࡀప

࠸ᮦᩱࡢ⇕ఏᑟ⋡ᐃࡢᐇ⦼ࡀ࠶ࡾࠊ」ྜᮦᩱࡢ࣐ࢡࣟ࡞ホ౯ࡀྍ⬟࡛࠶ࡿ฼Ⅼࡀ࠶ࡿࠋ୍᪉࡛ࠊẚ㍑ⓗ኱ࡁ࡞ヨᩱࢆ⏝࠸ࠊᐃ᫬㛫ࡀ㛗࠸ࡓࡵࠊホ౯࡟᫬㛫せࡋࠊᮦᩱ㛤Ⓨ࡬ࡢࣇ࢕࣮ࢻࣂࢵࢡࡢຠ⋡໬ࡀᮃࡲࢀ࡚

࠸ࡿࠋᑐ↷ⓗ࡟ࠊᐦᗘࡀẚ㍑ⓗ㧗ࡃ⦓ᐦ࡛ẚ㍑ⓗ⇕ఏᑟ⋡ࡀ኱ࡁ࠸ᅛయᮦᩱࡣࠊࣇࣛࢵࢩࣗἲ[1]࡟ࡼࡿ⇕ᣑᩓ⋡ࠊDSC ἲ࡟ࡼࡿẚ⇕ᐜ㔞ࠊ㉁㔞࡜ᑍἲ࠿ࡽồࡵࡓ࠿ࡉᐦᗘࢆࡑࢀࡒࢀồࡵࠊࡇࢀࡽࡢ✚࡜ࡋ࡚⇕ఏᑟ⋡ࢆ⟬ฟࡍࡿሙྜࡀከ࠸ࠋࣇࣛࢵࢩࣗἲࡣࠊ୍⯡࡟ࡣ᩿⇕ᮦࡢ࡛⇕ᣑᩓ⋡ࢆ

ᐃᐇ⦼ࡀ࡯࡜ࢇ࡝↓࠸ࡀࠊ▷᫬㛫࠿ࡘ㠀᥋ゐᐃ࡛ࡁࡿ฼Ⅼࡀ࠶ࡾࠊࡇࡢ᪉ἲࢆ᩿⇕ᮦࡢホ౯࡟⏝࠸ࡿࡇ࡜ࡀ࡛ࡁࢀࡤࠊᮦᩱ㛤Ⓨࡢຠ⋡ࡢྥୖࡀᮇᚅ࡛ࡁࡿࠋ᫖ᖺᗘࠊᡃࠎࡣᕷ㈍ࡢ᩿⇕ᮦࡢ⇕ᣑᩓ⋡ᐃࢆヨ⾜ࡋࠊ

ᐃࡀ୙ྍ⬟࡛ࡣ࡞࠸ࡇ࡜ࢆ᫂

ࡽ࠿࡟ࡋࡓࠋ௒ᖺᗘࡣࠊࣇࣛࢵࢩࣗἲࢆ⏝࠸࡚ࠊ⢏Ꮚ࡜⧄⥔ࡢ」ྜᮦᩱ࡛࠶ࡿ᩿⇕ᮦࡢ⇕ᣑᩓ⋡ᐃࢆ⾜࠸ࠊᐃࡢྍྰࢆ㆟ㄽࡋࡓࠋ㸰㸬◊✲᪉ἲ
⇕ᣑᩓ⋡ᐃࡣ⏘⥲◊࡛ᐇ᪋ࡋࡓࠋࣇࣛࢵࢩࣗἲࡢ

ᐃ⿦⨨ࡢᴫせཬࡧᐃ᮲௳➼ࡣୗグࡢ㏻ࡾ࡛࠶ࡿࠋ

࣭ࣃࣝࢫຍ⇕ග※㸸Nd;YAG ࣮ࣞࢨ㸦Ἴ㛗 1064 nmࠊࣃࣝࢫᖜ ್༙᫬㛫࡛⣙ 300ȣs㸧࣭ヨᩱ⿬㠃ࡢᗘኚ໬ほ㸸㉥እᨺᑕィ㸦୰ᚰἼ㛗 4.8 ȣm㸧

࣭

ᐃ᮲௳㸸ᐊ

࣭✵Ẽ୰

࣭

ᗘୖ᪼᭤⥺ࡢゎᯒ᪉ἲ㸸Cape & Lehman ࡢᘧ[2,3]ཬࡧ➼㠃✚ἲ[4]࡟ࡼࡿ࣮࢝ࣈࣇ࢕ࢵࢸ࢕ࣥࢢ

࣭ࣃࣝࢫຍ⇕౫Ꮡᛶ࠿ࡽ

ᗘୖ᪼ࢮࣟ᫬ࡢ⇕ᣑᩓ⋡[5]ࢆ᥎ᐃ

ᐃࡋࡓヨᩱࡢ෗┿ࢆᅗ㸯࡟♧ࡍࠋヨᩱࢧ࢖ࢬ࣭ᙧ≧ࡣࠊ┤ᚄ 10mm ཌࡉ 2 mm㸫3 mm ࡢ෇ᯈ࡛࠶ࡿࠋࡇ
ࢀࡽࡣࠊࢩࣜ࢝ࢼࣀ⢏Ꮚ࡜࢞ࣛࢫ⧄⥔࡟ SiC ⢊ᮎࢆῧຍࡋ࡚ Mechanical Processing ࡛ΰྜᚋ࡟ຍᅽᡂᙧࡋ࡚
స〇ࡋࡓ」ྜᮦᩱࡢᯈᮦ࠿ࡽษࡾฟࡋࡓࠋぶỈᛶཬࡧ␯Ỉᛶࡢ␗࡞ࡿ 2 ✀㢮ࡢࢩࣜ࢝ࢼࣀ⢏Ꮚࡑࢀࡒࢀࢆ౑
⏝ࡋࡓ 2 ✀㢮ࡢヨᩱࢆ᥋ྜ⛉Ꮫ◊✲ᡤ࡛⏝ពࡋࡓࠋ⾲㸯㸧ヨᩱࡢཌࡉ࠾ࡼࡧᐃ⤖ᯝヨᩱཌࡉ㸦ᶆ‽೫ᕪ㸧

⇕ᣑᩓ⋡

[mm]

[m2/s]

ぶỈ-1

2.304㸦0.050㸧

1.210-7

ぶỈ-2

2.522㸦0.065㸧

1.410-7ᐃ࡟⏝࠸ࡓヨᩱࡢ෗┿ࠋᕥࡀぶỈᛶࠊ␯Ỉ-12.709㸦0.068㸧

1.510-7ྑࡀ␯Ỉᛶࡢࢩࣜ࢝ࢼࣀ⢏Ꮚࢆ౑⏝ࡋࡓࡶࡢࠋ

␯Ỉ-22.532㸦0.077㸧

1.410-7

ヨᩱྡᅗ㸯㸧− 196 −

ᐃ࡟㝿ࡋ࡚ヨᩱࡣ⾲㠃඲య࡟࣮࢝࣎ࣥࢫࣉ࣮ࣞ㸦᪥ᮏ⯪⯧ᕤල᭷㝈఍♫〇ࠊDry Graphite Film Lubricant㸧ࢆሬᕸࡋࡓࠋࣇࣛࢵࢩࣗἲ࡛ࡣࠊࣃࣝࢫຍ⇕ගࢆヨᩱ⾲㠃࡛྾཰ࡉࡏ࡚ヨᩱࢆຍ⇕ࡋࠊ㉥እᨺᑕィ࡛⾲㠃ࡢᗘኚ໬ほࢆ⾜࠺ࡓࡵࠊࡇࢀࡽࡢἼ㛗࡟ᑐࡋ࡚྾཰ಀᩘࡀ㧗ࡃ୙㏱࡛᫂࠶ࡿࡇ࡜ࡀᚲせ࡛࠶ࡿࠋヨᩱࡢཌࡉࡣࠊ࣮࢝࣎ࣥࢫࣉ࣮ࣞࢆሬᕸࡍࡿ๓࡟ࣜࢽ࢔ࢤ࣮ࢪ࡛ 1 ヨᩱ࠶ࡓࡾ 5 Ⅼᐃࡋࡓᖹᆒ್ࢆ⏝࠸ࡓࠋ㸱㸬◊✲⤖ᯝ࠾ࡼࡧ⪃ᐹ  ᅗ㸰࡟ࠊ ᐃࡋࡓヨᩱ࡛ほ ࡉࢀࡓ ᗘୖ᪼᭤⥺ࢆ♧ࡍࠋa)ࡣぶỈᛶࠊb)ࡣ␯Ỉᛶࡢࢩࣜ࢝ࢼࣀ⢏Ꮚࢆ⏝࠸ࡓヨᩱࡢほ ࢹ࣮ࢱ࡛࠶ࡿࠋほ ࢹ࣮ࢱࡣࠊᶓ㍈ࡀ᫬㛫ࠊ⦪㍈ࡀ ᗘୖ᪼࡟┦ᙜࡍࡿಙྕᙉᗘ࡜࡞ࡗ࡚࠾ࡾࠊ
ࡇࡢ᭤⥺࠿ࡽ ᗘୖ᪼ࡢ㏿ࡉ㸦⇕ᣑᩓ᫬㛫㸧ࢆồࡵࠊヨᩱࡢཌࡉ࡜ྜࢃࡏ࡚ࠊ⇕ᣑᩓ⋡ࢆ⟬ฟࡋࡓࠋ⤖ᯝࢆ⾲㸯࡟ࡲ࡜ࡵࡓࠋᅗ㸰a)ࡣࠊぶỈᛶࢩࣜ࢝ࢼࣀ⢏Ꮚࡢヨᩱࡢ ᗘୖ᪼᭤⥺࡛࠶ࡾࠊS/N ẚࡀⰋዲ࡛ࠊ⇕ᦆኻࢆ⪃៖ࡋࡓゎᯒゎ࡛࠶ࡿ Cape & Lehman ࡢᘧ࡜ࡶ඲యⓗ࡟Ⰻ࠸୍⮴ࢆ♧ࡋ࡚࠸ࡿࠋࡼࡗ࡚ࠊᚓࡽࢀࡓ⤖ᯝࡣጇᙜ࡞⤖ᯝ࡛࠶ࡿ࡜ุ᩿ࡋࡓࠋ୍᪉ࠊ␯Ỉᛶࢩࣜ࢝ࢼࣀ⢏Ꮚࡢヨᩱ㸦ᅗ㸰b㸧㸧࡛ࡣࠊ ᗘୖ᪼᭤⥺ࡢ ᗘୖ᪼㒊ࡀ 2 ẁ࡟ศ࠿ࢀ࡚࠾ࡾࠊ⇕ᣑᩓ⌧㇟ࡀヨᩱෆ୍࡛ᵝ࡛ࡣ࡞ࡃ୙ᆒ୍࡛࠶ࡿ࡜᥎ ࡉࢀࡓࠋ2 ẁࡢ ᗘୖ᪼࡟ᑐᛂࡍࡿ⇕ᣑᩓ⋡ࡣࡑࢀࡒࢀ 1.610-7 m2/s ࡜ 0.9510-7 m2/s ࡜ぢ✚ࡶࡽࢀࠊ඲యࢆᖹᆒⓗ࡟ᤊ࠼ࡿ࡜⾲㸯ࡢ⤖ᯝ࡜࡞ࡗࡓࠋ
ᐃᚋ࡟␯Ỉᛶヨᩱࢆ☜ㄆࡋࡓ࡜ࡇࢁࠊୖୗ࡟๭ࢀࡸࡍ࠸≧ἣ࡟࡞ࡗ࡚࠸ࡓࡓࡵࠊෆ㒊⤌⧊࡟␗᪉ᛶࡀ࠶ࡗ
ࡓࡾࢡࣛࢵࢡࡀධࡗ࡚࠸ࡓࡾࡋࡓྍ⬟ᛶࡀ⪃࠼ࡽࢀࡿࠋ10-7 m2/s ࣮࢜ࢲ࣮ࡢ⇕ᣑᩓ⋡ࢆ᭷ࡍࡿࡇ࡜ࡣ᫂ࡽ࠿
࡛࠶ࡿࡀࠊࡑࢀ௨ୖヲ⣽࡞ ᐃ⤖ᯝࢆồࡵࡿࡇ࡜ࡣ㞴ࡋ࠿ࡗࡓࠋD ぶỈᛶ

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7LPHV ᅗ㸰㸧ࢩࣜ࢝ࢼࣀ⢏Ꮚ࡜࢞ࣛࢫ⧄⥔ࡢ」ྜᮦᩱࢆ ᐃࡋ࡚ほ ࡉࢀࡓ ᗘୖ᪼᭤⥺㸹a) ぶỈᛶࢩࣜ࢝ࢼࣀ⢏Ꮚࢆ⏝࠸ࡓヨᩱࠊb) ␯Ỉᛶࢩࣜ࢝ࢼࣀ⢏Ꮚࢆ⏝࠸ࡓヨᩱࠋ㸲㸬⤖ㄽ 」ྜᮦᩱࡢ౛࡜ࡋ࡚ࠊࢩࣜ࢝ࢼࣀ⢏Ꮚ࡜࢞ࣛࢫ⧄⥔ࡢ」ྜᮦᩱࡢ⇕ᣑᩓ⋡ ᐃࢆࣇࣛࢵࢩࣗἲ࡟ࡼࡾ⾜ࡗࡓࠋᚓࡽࢀࡓ ᗘୖ᪼᭤⥺ࡢᵝᏊ࠿ࡽࠊࣇࣛࢵࢩࣗἲ࡟ࡼࡿ ᐃࡀ༑ศྍ⬟࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋぶỈᛶࢩࣜ࢝ࢼࣀ⢏Ꮚࢆ⏝࠸ࡓヨᩱ࡛ࡣࠊጇᙜ࡞ ᐃ⤖ᯝࡀᚓࡽࢀࡓࡀࠊ␯Ỉᛶࡢࡶࡢ࡛ࡣ ᐃ⤖ᯝࡢಙ㢗ᛶ࡟ㄢ㢟ࡀṧࡗࡓࠋ௒ᚋࡶࡇࢀࡽࡢヨᩱࡢホ౯ࢆ㐍ࡵࡿ࡜࡜ࡶ࡟ࠊᐃᖖἲ࡟ࡼࡿ ᐃ⤖ᯝ࡞࡝࡜ࡢẚ㍑ࢆࡋࡓ࠸ࠋ

㸳㸬ཧ⪃ᩥ⊩[1] W. J. Parker, R. J. Jenkins, C. P. Butler, and G. L. Abbott, J. Appl. Phys., 32 (1961) 1679.
[2] J. A. Cape and G. W. Lehman, J. Appl. Phys., 34-7 (1963) 1913.
[3] D. Josell, J. Warren, A. Cezairliyan, J. Appl. Phys., 78-11 (1995) 6867.
[4] JIS R 1611 “ࣇ࢓࢖ࣥࢭ࣑ࣛࢵࢡࢫࡢࣇࣛࢵࢩࣗἲ࡟ࡼࡿ⇕ᣑᩓ⋡࣭ẚ⇕ᐜ㔞࣭⇕ఏᑟ⋡ࡢ
(2010) 㝃ᒓ᭩ C.
[5] M. Akoshima, B. Hay, M. Neda, M. Grelard, Int. J. Thermophys., 34 (2013) 778.

ᐃ᪉ἲ”                    (ඹྠ◊✲ศ㔝: ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝)− 197 −

ከᏍ㉁ᮦᩱࡢ⇕≀ᛶホ౯㸦⊂㸧⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ ィᶆ‽◊✲㒊㛛㜿㒊 㝧㤶

1. ⥴ ゝᮏ◊✲࡛ࡣࠊከᏍ㉁ᮦᩱࡢ⇕≀ᛶࠊ≉࡟ẚ⇕ᐜ㔞㸦௨ୗẚ⇕㸧ࡢ ᐃࢆ⾜࡞࠸ࠊከᏍ㉁ᮦᩱࡢ⇕ⓗᛶ㉁ࢆ
᫂ࡽ࠿࡟ࡍࡿ࡜ඹ࡟ࡑࡢホ౯ἲࡢ᳨ウࢆ⾜࠺ࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋከᏍ㉁ᮦᩱ࡜ࡣࡑࡢෆ㒊࡟ከᩘࡢᚤ⣽࡞Ꮝࢆࡶࡘᅛయࡢ⥲⛠࡛࠶ࡾࠊᏍࡢ࡞࠸⦓ᐦ࡞ᅛయ࡜ࡣ✀ࠎ␗࡞ࡿᛶ㉁ࢆࡶࡘࠋࡑࡢ≉␗࡞ᛶ㉁ࢆ฼⏝ࡋ࡚ࠊ⪏ⅆ≀ࡸ᩿⇕ᮦࠊ⦆⾪ᮦࠊ྾㡢ᮦࠊ࠶ࡿ࠸ࡣ྾╔ᮦࠊゐ፹ࡲࡓࡣゐ፹ᢸయ࡜ࡋ࡚ከ᪉㠃࡟ࢃࡓࡗ࡚౑⏝ࡉࢀ࡚ࡁࡓࠋ≉࡟㏆ᖺ࡛ࡣࠊప⇕ఏᑟ⋡ࢆ᭷ࡍࡿᮦᩱ㛤Ⓨࡀὀ┠ࡉࢀ࡚࠾ࡾࠊࡑࡢホ౯ἲ࡟㛵ࡍࡿ㆟ㄽࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋࡑࡢࡦ࡜ࡘ࡜ࡋ࡚ࠊ⇕ᣑᩓ⋡ࠊẚ⇕ࠊ࠿ࡉᐦᗘ࠿ࡽ⇕ఏᑟ⋡ࢆồࡵࡿ᪉ἲ࡟ࡘ࠸᳨࡚ウࡀ࡞ࡉࢀ࡚࠸ࡿࠋࡑࡇ࡛௒ᖺᗘࡣࠊẚ⇕ ᐃ࡟㛵ࡋ࡚ࠊ♧ᕪ㉮ᰝ⇕㔞ἲ㸦Differential Scanning Calorimetry :௨ୗ DSC
ἲ㸧ࢆ⏝࠸ࡓ᩿⇕ᮦࡢホ౯ࢆヨࡳࡓࠋ ᐃヨᩱࡣࢩࣜ࢝ࢼࣀ⢏Ꮚ࡜࢞ࣛࢫ⧄⥔࡟Ⅳ໬⌛⣲⢊ᮎࢆῧຍࡋ࡚స
〇ࡋࡓ࢞ࣛࢫ⧄⥔/ࣇ࣮࣒ࣗࢻࢩࣜ࢝」ྜከᏍయ࡛࠶ࡿࠋぶỈᛶ࡜␯Ỉᛶࡢࣇ࣮࣒ࣗࢻࢩࣜ࢝ࢆ⏝࠸ࡓ␗࡞ࡿ
஧✀㢮ࡢ」ྜከᏍయࢆ⏝ពࡋࠊྠ᮲௳࡛ ᐃࡍࡿࡇ࡜࡟ࡼࡾẚ㍑ࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ

2.
ᐃヨᩱ࠾ࡼࡧ ᐃ᪉ἲ
DSC ἲࡣࠊ ᗘࢆ୍ᐃࡢࣉࣟࢢ࣒ࣛ࡟ᚑࡗ࡚ኚ໬ࡉࡏ࡞ࡀࡽࠊᇶ‽≀㉁࡜ ᐃヨᩱ࡟ᑐࡍࡿධຊ࢚ࢿࣝࢠ࣮ᕪࢆ ᐃࡍࡿᢏἲ࡜ࡋ࡚▱ࡽࢀ࡚࠾ࡾࠊ⡆౽࡟ ᐃヨᩱࡢẚ⇕ࢆồࡵࡿࡇ࡜ࡀ࡛ࡁࡿẚ㍑ ᐃἲ࡛࠶ࡿࠋ
ᐃࣉࣟࢢ࣒ࣛࡣࠊJIS R1672[1]࡟ᚑ࠸ࠊ➼ 㐣⛬Ѝ➼㏿᪼ 㐣⛬Ѝ➼ 㐣⛬࡛ᵓᡂࡉࢀࡿࠋ௒ᅇࡣ 300㹼500
K ࡢ ᗘⅬ࡟࠾࠸࡚ࠊ➼ 㐣⛬ 10 ศࠊ➼㏿᪼ ㏿ᗘ 10 K / min ࡜ࡋ࡚ ᐃࢆ⾜ࡗࡓࠋ ᐃ⿦⨨࡟ࡣཧ↷ഃ࡜ヨᩱഃ࡜࿧ࡤࢀࡿ஧ࡘࡢᐜჾ࣍ࣝࢲ࣮ࡀ࠶ࡾࠊ ᐃヨᩱࡢ⇕ᐜ㔞ࢆồࡵࡿࡓࡵ࡟ࡣࠊཧ↷࣍ࣝࢲ࣮ഃࡣ✵ࡢヨᩱᐜჾࡢࡳࡢ≧ែ࡛ࠊヨᩱ࣍ࣝࢲ࣮ഃ࡟ (A) ✵ᐜჾࠊ(B) ᐜჾ㸩ᇶ‽≀㉁ࠊ(C) ᐜჾ㸩 ᐃヨᩱࠊࢆࢭࢵ
ࢺࡋࡓ 3 ᐃࢆྠ᮲௳࡛⾜࠺ࠋ࣮࣋ࢫࣛ࢖ࣥࡢ⿵ṇᚋࠊ ᐃ(B) ࠿ࡽ ᐃ(A) ࡢ⇕ὶ᮰ࢆᕪࡋᘬࡃࡇ࡜࡟ࡼ
ࡾᇶ‽≀㉁ࡢ⇕ὶ᮰ࢆồࡵࠊ ᐃ(C) ࠿ࡽ ᐃ(A) ࡢ⇕ὶ᮰ࢆᕪࡋᘬࡃࡇ࡜࡟ࡼࡾࠊ ᐃヨᩱࡢ⇕ὶ᮰ࢆồࡵࡿࠋࡇࡢ஧ࡘࡢ⇕ὶ᮰ࡢẚ㍑࠿ࡽࠊ࠶ࡿ ᗘ T ࡛ࡢ⇕ᐜ㔞ࢆ⟬ฟࡋࠊ ᐃヨᩱࡢ㉁㔞ࢆ⏝࠸࡚ẚ⇕ᐜ㔞ࢆᚓࡿࠋヨᩱᐜჾࡣࠊ࢔࣑ࣝࢽ࣒࢘ᐜჾࢆ౑⏝ࡋࠊ஝⇱❅⣲㞺ᅖẼ୰࡛ ᐃࢆ⾜ࡗࡓࠋ ᐃヨᩱࡣࠊ᥋ྜ⛉Ꮫ◊✲ᡤ࡛⏝ពࡉࢀࡓぶỈᛶ࡜␯Ỉᛶࡢࣇ࣮࣒ࣗࢻࢩࣜ࢝ࢆ⏝࠸ࡓ஧✀㢮ࡢ」ྜከᏍయ࡛࠶ࡾࠊࡑࢀࡒࢀヨᩱ
Aࠊヨᩱ B ࡜ࡍࡿࠋFig. 1 ࡟ ᐃヨᩱࡢ෗┿ࢆ♧ࡍࠋ஧✀㢮ࡢヨᩱࡣࠊヨᩱᐜჾࡢᙧ≧࡟ྜࢃࡏ࡚┤ᚄ 5 mm
ཌࡉ 1 mm ࡢ෇ᯈ≧࡟ຍᕤࡉࢀࠊ㉁㔞ࡣࡑࢀࡒࢀ 6.97 mgࠊ5.92 mg ࡛࠶ࡿࠋึࡵ࡟ࡇࡢヨᩱࢆ⏝࠸࡚ ᐃࢆ⾜ࡗࡓࡀࠊヨᩱࡢ㉁㔞ࡀᑡ࡞࠸ࡓࡵࠊ⇕ὶ᮰ࡢࢩࢢࢼࣝࡀ㠀ᖖ࡟ᑠࡉ࠸࡜࠸࠺ၥ㢟ࡀ⏕ࡌࡓࠋࡑࡇ࡛ࠊヨᩱࡣᐜჾࢆ‶ࡓࡍࡼ࠺࡟ワࡵ࡚ࢭࢵࢺࡋࠊ࡛ࡁࡿࡔࡅ㉁㔞ࢆቑࡸࡋࡓࠋࡑࡢ⤖ᯝࠊヨᩱ AࠊB ࡢ㉁㔞ࡣࡑࢀࡒࢀ 15.04 mgࠊ12.20 mg ࡜࡞ࡾࠊࢩࢢࢼࣝࡢ኱ࡁࡉࢆ☜ಖ࡛ࡁࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡇࡢヨᩱࢆ⏝࠸࡚ ᐃࢆᐇ᪋ࡋࡓࠋᇶ‽≀㉁࡜ࡋ࡚ࡣࠊ⇕ᐜ㔞ᶆ‽≀㉁ NIST SRM720㸦ྜᡂࢧࣇ࢓࢖࢔㸧࡟ࢺ࣮ࣞࢧࣈࣝ࡞Ș࢔࣑ࣝࢼࢆ౑⏝ࡋࡓࠋFig. 2 ࡟ヨᩱ B ᐃ᫬࡟࠾ࡅࡿ࣮࣋ࢫࣛ࢖ࣥࡢ⿵ṇ๓ࡢࢩࢢࢼࣝ౛ࢆ♧ࡍࠋ3 ᐃඹ࡟ࢩࢢ
ࢼࣝࡣᏳᐃࡋ࡚࠾ࡾࠊⰋዲ࡛࠶ࡗࡓࠋ

⇕ὶ
/ mW

ᐜჾ㸩ᇶ‽≀㉁

ᐜჾ㸩ヨᩱ B㻌✵ᐜჾ㻌       ᫬㛫 / ศ

Fig. 1ᐃヨᩱ㸦ᕥ㸸ヨᩱ Aࠊྑ㸸ヨᩱ B㸧     Fig. 2 DSC ἲ࡟ࡼࡿ ᐃ౛㸦ヨᩱ B㸧

− 198 −

3.ᐃ⤖ᯝ  ྛヨᩱࡢ ᐃ⤖ᯝࢆ Fig. 3 ࡟♧ࡍࠋ‫ࡣە‬ヨᩱ Aࠊ‫ࡣڦ‬ヨᩱ B ࡛࠶ࡾࠊྛ ᗘ࡛ࡢ ᐃⅬࡣ 2 ᅇࡎࡘ⧞ࡾ㏉ࡋ ᐃࢆ⾜࠸ࠊࡑࡢᖹᆒ್ࢆࣉࣟࢵࢺࡋࡓࠋ⌧᫬Ⅼ࡛ࡣࠊᮏヨᩱࡢ ᐃࡢಙ㢗ᛶࢆ☜ㄆ࡛ࡁࡿẚ㍑ࢹ࣮ࢱࡀ࡞࠸ࡓࡵࠊᮏヨᩱࡢཎᮦᩱ࡛࠶ࡿࠊࢩࣜ࢝ࠊ࢞ࣛࢫ⧄⥔ࠊⅣ໬⌛⣲ࡢཧ↷್ࢆ⏝࠸࡚ࠊ300 K ࡛ࡢ್ࢆ᥎ᐃ
ࡋࡓ[1]ࠋࡑࡢ⤖ᯝࡀ‫ࡓࡋ♧࡛ۃ‬᥎ᐃ್࡛࠶ࡿࠋ≉࡟࢞ࣛࢫ⧄⥔࡟㛵ࡋ࡚ࡣࠊཧ↷್࡟ࡤࡽࡘࡁࡀ࠶ࡗࡓࡓࡵࠊ
ࡑࢀࢆ᥎ᐃ್࡟཯ᫎࡋ࡚ࠊ‫ࠊࡾࡼࢀࡇࠋࡓࡋ♧࡛࣮ࣂ࣮࢚ࣛ࡟ۃ‬300 K ࡛ࡣࠊヨᩱ AࠊB ඹ࡟ࠊ᥎ᐃ್࡟㏆࠸್࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡲࡓヨᩱ A ࡜ B ࢆẚ㍑ࡍࡿ࡜ࠊẚ⇕್ࡣ ᐃ ᗘ⠊ᅖ࡟࠾࠸࡚ࠊヨᩱ B ࡢ࡯࠺ࡀ2.5㹼5.3 㸣 ኱ࡁ࠸⤖ᯝ࡜࡞ࡗࡓࠋࡇࡇ୍࡛ࡘၥ㢟ࡣࠊヨᩱ A ࡜ B ඹ࡟ࠊ ᐃᚋ࡟㉁㔞ࡢῶᑡࡀぢࡽࢀࡓࡇ࡜࡛࠶ࡿࠋࡇࡢ㉁㔞ῶᑡࡣࠊẚ⇕࡟᥮⟬ࡍࡿ࡜ヨᩱ A ࡛ࡣ㸩2.5 㸣ࠊヨᩱ B ࡛ࡣ㸩1.4 㸣ࡢࡤࡽࡘࡁ࡟ᑐᛂ
ࡍࡿࠋヨᩱ A ࡜ B ࡢ ᐃ್࡟᭷ព࡞ᕪࡀ࠶ࡿ࠿࡝࠺࠿ࢆ☜ㄆࡍࡿࡓࡵ࡟ࡣࠊ௒ᚋࡉࡽ࡟ヲ⣽࡞ ᐃࢆ㐍ࡵࡿᚲせࡀ࠶ࡿ࡜ุ᩿ࡋࡓࠋ

ヨᩱ$ ぶỈᛶࢩࣜ࢝㸧
ヨᩱ% ␯Ỉᛶࢩࣜ࢝㸧
᥎ᐃ್

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

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

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7HPSHUDWXUH.

Fig. 3 ࢞ࣛࢫ⧄⥔/ࣇ࣮࣒ࣗࢻࢩࣜ࢝」ྜከᏍయࡢẚ⇕ᐜ㔞 ᐃ⤖ᯝ     4㸬⤖⤖ゝప⇕ఏᑟ⋡ᮦᩱ࡜ࡋ࡚ᮇᚅࡉࢀࡿ࢞ࣛࢫ⧄⥔/ࣇ࣮࣒ࣗࢻࢩࣜ࢝」ྜከᏍయࡢẚ⇕ᐜ㔞 ᐃࢆࠊ300㹼500 Kࡢ ᗘ⠊ᅖ࡛ᐇ᪋ࡋࡓࠋぶỈᛶࢩࣜ࢝࡜␯Ỉᛶࢩࣜ࢝ࢆ⏝࠸ࡓ஧✀㢮ࡢ」ྜከᏍయࢆ DSC ἲ࡟ࡼࡾྠ᮲௳࡛
ᐃࡋࡓ࡜ࡇࢁࠊ300 K ࡟࠾ࡅࡿ᥎ᐃ್࡜ẚ㍑ࡍࡿࡇ࡜࡟ࡼࡾࠊ஧ࡘࡢヨᩱඹ࡟ᴫࡡጇᙜ࡞್ࢆᚓࡓ࡜᥎
ࡉࢀࡿࠋࡋ࠿ࡋ࡞ࡀࡽ 300 K ௨ୖࡢ ᗘ౫Ꮡᛶ࡟㛵ࡋ࡚ࡣࠊ᪤Ꮡࡢࢹ࣮ࢱࡀᏑᅾࡋ࡞࠸ࡓࡵࠊ ᐃ⤖ᯝࡢጇᙜᛶࢆ㆟ㄽࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓࠋDSC ἲࡣࠊ௒ᅇࡢヨᩱࡢࡼ࠺࡟⇕ఏᑟ⋡ࡢᑠࡉ࠸᩿⇕ᮦࡢ ᐃ࡟㛵ࡋ࡚ࡣࠊ ᐃࡢಙ㢗ᛶࡀ☜ಖࡉࢀ࡚࠸࡞࠸ࠋ௒ᚋࡣࠊ᩿⇕ἲࠊᢞୗἲ࡞࡝[3]ࠊDSC ἲࡼࡾࡶಙ㢗ᛶࡢ㧗࠸ ᐃἲ࡛ࡢ ᐃࢆᐇ᪋ࡋࠊ௒ᅇࡢ⤖ᯝ࡜ẚ㍑ࠊ᳨ウࡍࡿࡇ࡜ࡀ୙ྍḞ࡛࠶ࡿࠋཧ⪃ᩥ⊩[1] JIS R 1672ࠊ㛗⧄⥔ᙉ໬ࢭ࣑ࣛࢵࢡࢫ」ྜᮦᩱࡢ♧ᕪ㉮ᰝ⇕㔞ἲ࡟ࡼࡿẚ⇕ᐜ㔞[2] ᪂⦅⇕≀ᛶࣁࣥࢻࣈࢵࢡࠊ᪥ᮏ⇕≀ᛶᏛ఍⦅ࠊ㣴㈼ᇽ
[3] ⇕㔞 ᐃ࣭⇕ศᯒࣁࣥࢻࣈࢵࢡ➨ 2 ∧ࠊ᪥ᮏ⇕ ᐃᏛ఍⦅ࠊ୸ၿᰴᘧ఍♫ᐃ᪉ἲ(ඹྠ◊✲ศ㔝: ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝)− 199 −

⧄⥔≧⢏Ꮚࢆ⏝࠸ࡓᶵᲔⓗ」ྜ໬㐣⛬ࡢ DEM ࢩ࣑࣮ࣗࣞࢩࣙࣥ
ᮾ໭኱Ꮫ኱Ꮫ㝔⎔ቃ⛉Ꮫ◊✲⛉ ▼ཎ┿࿃ᮾ໭኱Ꮫከඖ≀㉁⛉Ꮫ◊✲ᡤ ຍ⣡⣧ஓ
1. ⥴ゝ

 ADEM ࡣ㸪⌫ᙧࡢᵓᡂ⢏Ꮚࡢ㞟ྜయ࡜ࡋ࡚௵ពᙧ ᮦᩱࡢ」ྜ໬࡟ࡼࡾᵝࠎ࡞᪂ᶵ⬟ᮦᩱࡀ๰〇ࡉࢀ≧ࢆ⾲⌧ࡋ㸪ᵓᡂ⢏Ꮚྠኈࡣ┦஫࡟㐃⤖ࣂࢿ࡛᥋⥆࡚࠾ࡾ㸪≉࡟⢏Ꮚ⾲㠃࡟ᶵᲔⓗᛂຊࢆస⏝ࡉࡏ࡚ᚤࡉࢀ࡚࠸ࡿ㸬㐃⤖ࣂࢿ࡟ࡣ᭱኱ࡦࡎࡳࡀタᐃࡉࢀ࡚⢏Ꮚࢆ⤖ྜࡉࡏࡿ」ྜ⢏Ꮚࡢస〇ᢏ⾡ࡣ㸪᪂ࡋ࠸༢࠾ࡾ㸪᭱኱ࡦࡎࡳࢆ㉸࠼࡚㐃⤖ࣂࢿࡀఙࡧࡓሙྜࡣ

఩᧯సࡢ୍ࡘ࡜ࡋ࡚ὀ┠ࢆ㞟ࡵ࡚࠸ࡿ 1-4)㸬ᶞ⬡㸪㔠᥋⥆ࢆ◚᩿ࡍࡿࡇ࡜࡜ࡋࡓ㸬ィ⟬࡟⏝࠸ࡓᲬ≧⢏Ꮚᒓ㸪ࢭ࣑ࣛࢵࢡࢫ࡞࡝ᖜᗈ࠸⤌ࡳྜࢃࡏ࡟ࡼࡿ」ྜ

ࢆ Fig.2 ࡟♧ࡍ㸬⢏Ꮚᚄ 2 mm ࡢᵓᡂ⢏Ꮚࢆ 8 ಶ㐃⢏Ꮚࡢస〇ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿ 3-6)⤖ࡋ㸪඲㛗ࡀ 16 mm ࡜ࡋࡓ㸬㐃⤖ࣂࢿᐃᩘ㸪᭱኱ࡦ࡯࠿㸪ࡑࡢᛂ⏝࡟㛵ࡍࡿ◊✲ࡶከᩘ⾜ࢃࢀ࡚࠸ࡿ 7)㸬

ࡎࡳࡢ್ࡣࡑࢀࡒࢀ 1.0 N/mm㸪1.2 ࢆ⏝࠸ࡓ㸬ᅇ㌿ ⴭ⪅ࡽࡣࡇࢀࡲ࡛㸪㞳ᩓせ⣲ἲ(Distinct Element㏿ᗘࡀ⧄⥔≧⢏Ꮚࡢ◚○࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸᳨࡚ウ

Method : DEM)8)ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆᶵᲔⓗ」ྜ໬ࡍࡿࡓࡵ㸪300 rpm, 500 rpm, 1000 rpm ࡢ 3 ࡘࡢ᮲࡟㐺⏝ࡋ㸪⿦⨨ࡢ᧯స᮲௳࡞࡝ࡀᶵᲔⓗ」ྜ໬࡟ཬ௳࡛ィ⟬ࢆ⾜ࡗࡓ㸬ィ⟬᮲௳ࢆ Table 1 ࡟♧ࡍ㸬ࡰࡍᙳ㡪࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗ࡚ࡁࡓ 9)㸬⌫ᙧ⢏Ꮚࢆᑐ㇟࡜ࡋࡓゎᯒࡢ௚㸪⧄⥔≧⢏Ꮚࡢ⿦⨨ෆᣲືࢆ᫂
ࡽ࠿࡟ࡍࡿࡇ࡜ࢆヨࡳ࡚࠸ࡿ㸬ᐇ㝿ࡢ」ྜ໬ࣉࣟࢭ
ࢫ࡛ࡣ㸪⧄⥔≧⢏Ꮚ࡜⌫ᙧ⢏Ꮚࢆΰྜࡋࡓ≧ែ࡛⿦⨨ࢆ㐠㌿ࡋ࡚࠾ࡾ㸪୧⪅ࡢ⿦⨨ෆᣲືࡢᢕᥱࡀ㧗ຠ⋡໬࡟࠾࠸࡚㔜せ࡛࠶ࡿ㸬≉࡟㸪」ྜ໬ࢆ⾜࠺ࡓࡵ࡟ࡣ⢏Ꮚ࡟㧗࢚ࢿࣝࢠ࣮ࢆ༳ຍࡍࡿᚲせࡀ࠶ࡿࡀ㸪༳ຍࡍࡿ࢚ࢿࣝࢠ࣮ࡀ኱ࡁࡍࡂࡿ࡜⢏Ꮚࡀ◚ቯࡋ࡚ࡋࡲ࠺ࡓࡵ㸪」ྜ໬࡟᭱㐺࡞࢚ࢿࣝࢠ࣮ࢆぢᴟࡵࡿ

Fig. 1 Schematic configuration of the fabricating
composite particles.

ࡇ࡜ࡀ⫢せ࡛࠶ࡿ㸬ࡇࡇ࡛ࡣ㸪ⴭ⪅ࡽࡀ㛤Ⓨࡋࡓ
ADEM(Advanced DEM)ࢆ⏝࠸㸪⌫ᙧ⢏Ꮚ࡜⧄⥔≧⢏Ꮚࢆΰྜࡋࡓゎᯒ࡟ࡼࡾ㸪ࡑࢀࡒࢀࡢ⢏Ꮚ࡟༳ຍࡉࢀࡿ࢚ࢿࣝࢠ࣮࡜⧄⥔≧⢏Ꮚࡢ◚○ᣲືࢆ᫂ࡽ࠿

Fig. 2 Schematic diagram of rod-like particle

࡟ࡍࡿࡓࡵࡢ᳨ウࢆ⾜ࡗࡓ㸬consist of primary particles.

2. ࢩ࣑࣮ࣗࣞࢩࣙࣥ᮲௳ ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓ⿦⨨ᙧ≧ࢆ Fig.1 ࡟♧

Table 1 Conditions of simulationࡍ㸬ࡇࢀࡣ㸪ᦶ○ᘧ」ྜ໬᪉ἲࢆᶍᨃࡋࡓᙧ≧࡛࠶

Number of rod-like particle [-]1250

ࡿ㸬ࡇࡇ࡛⢊యࡣ㸪ᅇ㌿ࡍࡿ෇⟄ᐜჾ࡜ෆഃ࡟ᅛᐃ

Young’s modulus [Pa]7.63106ࡉࢀࡓ࢔࣮࣒࣊ࢵࢻ࡜ࡢ㛫࡛ຊᏛⓗస⏝ࢆཷࡅࡿ㸬

Frictional coefficient [-]0.7

స⏝ࢆཷࡅࡓ⢊యࡣࢫࢡ࣮ࣞࣃ࣮࡟ࡼࡾᥙࡁྲྀࡽࢀ

Rotational speed [rpm]300, 500, 1000෌ᗘస⏝ࢆཷࡅࡿ㸬ࡇࢀࡀ⧞ࡾ㏉ࡉࢀ㸪」ྜ໬ࡀ㐍

Scraper angle [deg]

270

⾜ࡍࡿ㸬

− 200 −

3. ࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝ࡜⪃ᐹ
Fig.3 ࡟㸪ྛᅇ㌿㏿ᗘ࡟࠾ࡅࡿ⧄⥔≧⢏Ꮚ࠾ࡼࡧ⌫ᙧ⢏Ꮚࡢ⿦⨨ෆ࡛ࡢ㐠ືᣲືࢆ♧ࡍ㸬⢏ᏊࡢⰍࡣ㸪⌫ᙧ⢏Ꮚࡣ㟷Ⰽ㸪⧄⥔≧⢏Ꮚࡣᵓᡂ⢏Ꮚᩘ࡛Ⰽศࡅ
ࢆࡋ࡚࠾ࡾ㸪ᵓᡂ⢏Ꮚᩘࡀከ࠸ࡶࡢࡣ㉥Ⰽ㸪ᑡ࡞࠸ࡶࡢࡣ㟷Ⰽ࡟㏆࡙ࡃࡼ࠺࡟Ⰽศࡅࡋࡓ㸬࠸ࡎࢀࡢᅇ
㌿㏿ᗘ࡟࠾࠸࡚ࡶ㸪⌫ᙧ⢏Ꮚࡀᐜჾቨ௜㏆࡟㸪⧄⥔(a) 300 rpm≧⢏Ꮚࡀᐜჾ୰ᚰ௜㏆࡟೫ᯒࡋ࡚࠸ࡿᵝᏊࡀࢃ࠿ࡿ㸬ࡇࢀࡣ㸪⧄⥔≧⢏Ꮚࡀࢫࢡ࣮ࣜࣥࡢస⏝ࢆ࡞ࡋ㸪⌫ᙧ⢏Ꮚࡀࡑࡢ㛫㝽ࢆᢤࡅࡿࣃ࣮ࢥ࣮ࣞࢩࣙࣥ࡟
ࡼࡿࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬ᅇ㌿㏿ᗘࡀ 1000 rpm ࡢ࡜ࡁ㸪⧄⥔≧⢏Ꮚࡀ◚ቯࡉࢀࡿᵝᏊࡀほᐹࡉࢀࡓ㸬Fig.4 ࡟ࡣ㸪ྛᅇ㌿㏿ᗘ࡟࠾ࡅࡿ⾪✺࢚ࢿࣝࢠ࣮ࡢ
್ࢆ♧ࡍ㸬ᅇ㌿㏿ᗘࡢቑຍ࡟క࠸⾪✺࢚ࢿࣝࢠ࣮ࡢ

(b) 500 rpm

್ࡶቑຍࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬௒ᅇࡢ᳨ウ࡛⏝࠸ࡓ≀ᛶ್ࡣ㸪ᐇ㝿ࡢヨᩱࡢ≀ᛶ್ࢆ཯ᫎࡋࡓࡶࡢ࡛
ࡣ࡞࠸ࡀ㸪ᐇ㝿ࡢ⢏Ꮚࡢ≀ᛶ್ࢆ⏝࠸ࡿࡇ࡜࡟ࡼࡗ
࡚㸪⧄⥔≧⢏Ꮚࡀ◚ቯࡉࢀ࡞࠸⠊ᅖ࡛㧗࢚ࢿࣝࢠ࣮
ࢆ௜ຍ࡛ࡁࡿࡼ࠺࡞᧯స᮲௳ࡸ⿦⨨ᙧ≧ࢆࢩ࣑࣮ࣗࣞࢩࣙࣥ࠿ࡽ⟬ฟྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬
ཧ⪃ᩥ⊩

3)

4)
5)
6)
7)

8)
9)

(c) 1000 rpm
Fig.3 Effect of rotational speed for particle
breakage behavior.
㻌㻝㻜㻠

P.A. Cundall and O.D. L. Strack : “A
Discrete numerical model for granularassemblies”, Geotechnique, 29, 47-65 (1979)
R. Soda, K. Yagi, J. Kano, F. Saito, M. Naito:
Journal of Smart Processing, 1, 218-223(2012)

㻝㻜㻟㻌㻟㻜㻜㻌㼞㼜㼙
㻌㻡㻜㻜㻌㼞㼜㼙
㻌㻝㻜㻜㻜㻌㼞㼜㼙

㻝㻜㻞

㻌

2)

M. Koishi : J. Soc. Powder Technol., Japan, 24,
18-23 (1987)
M. Koishi : “Biryushi Sekkei”, Kogyo
Chosakai, (1987)
H. Honda, K. Ono, T. Ishizaka, T. Matsuno, T.
Katano, and M. Konishi : J. Soc. Powder
Technol., Japan, 24, 593 (1987)
M. Naito, A. Kondo and T. Yokoyama: ISIJInternational, Vol.33, 915-924 (1993)
T. Yokoyama, K. Urayama, M. Naito, M. Katoand T. Yokoyama: KONA, No.5, 59 (1987)
K. Tanno, T. Yokoyama and K. Urayama: J.
Soc. Powder Technol., Japan, 27, 153 (1990)“Funsai to Bunkyu to Hyoumenkaishitsu”,
NGT, 481-592 (2001)㻲㼞㼑㼝㼡㼑㼚㼏㼥㻌㻔㻙㻕

1)

㻝㻜㻝

㻝㻜㻜

㻝㻱㻙㻝㻞 㻝㻱㻙㻝㻜

㻝㻱㻙㻤

㻝㻱㻙㻢

㻝㻱㻙㻠

㻜㻚㻜㻝

㻝

㻵㼙㼜㼍㼏㼠㻌㼑㼚㼑㼞㼓㼥㻌㻔㻶㻕Fig.4 Distribution of the impact energy witha parameter of rotational speed.

  (ඹྠ◊✲ศ㔝: ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝)− 201 −

ࢫ࣮ࣛࣜ⤌ᡂࡢ␗࡞ࡿࢤࣝ࢟ࣕࢫᡂᙧయ୰࣏࣐࣮ࣜࡢࢢࣛࣇ࢓࢖ࢺ໬ᣲື࡜ࡑࡢᑟ㟁≉ᛶྡྂᒇᕤᴗ኱Ꮫ ඛ㐍ࢭ࣑ࣛࢵࢡࢫ◊✲ࢭࣥࢱ࣮ⓑ஭ Ꮥ ┠ⓗ
㏆ᖺࠊⅣ⣲ᮦᩱࡢᣢࡘඃࢀࡓᑟ㟁ᛶࠊ⪏㣗ᛶ➼ࡢ≉ᛶࢆࢭ࣑ࣛࢵࢡࢫ࡟௜୚ࡍࡿࡓࡵ࡟ࠊ✀ࠎࡢᡭἲ࡟
ࡼࡿⅣ⣲㸭ࢭ࣑ࣛࢵࢡࢫ」ྜᮦᩱࡢస〇࡟ࡘ࠸࡚ࡢ᳨ウࡀ⾜ࢃࢀ࡚࠸ࡿࠋ୍⯡ⓗ࡟ࡣࠊ࣮࢝࣎ࣥࣈࣛࢵࢡ
ࡸ࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈ࡞࡝ࢆࠊࢭ࣑ࣛࢵࢡࢫ⢏Ꮚ࡜࡜ࡶ࡟஝ᘧ࡞࠸ࡋࡣ‵ᘧ᮲௳࡟࠾࠸࡚ࠊΰ⦎ࠊᡂᙧ
ࡍࡿᡭἲࡀ࡜ࡽࢀࡿࡀࠊⅣ⣲ᡂศ࡜ࢭ࣑ࣛࢵࢡࢫ⢏Ꮚࡢ೫ᯒࡸจ㞟ࡀᙉᗘࠊྛ✀≀ᛶࡢపୗࢆᣍࡃࡓࡵࠊ
ᆒ㉁࡞ศᩓ≧ែࢆᚓࡿࡓࡵࡢᵝࠎ࡞᳨ウࡀ⾜ࢃࢀ࡚࠸ࡿࠋᡃࠎࡣࠊࢭ࣑ࣛࢵࢡࢫࡢᡂᙧᡭἲ࡛࠶ࡿࢤࣝ࢟
ࣕࢫࢸ࢕ࣥࢢἲ࡟ࡼࡾస〇ࡉࢀࡓᡂᙧయࢆ୙άᛶ㞺ᅖẼୗ࡛↝ᡂࡍࡿࡇ࡜࡛Ⅳ⣲࢔࣑ࣝࢼ」ྜᮦᩱࢆస
〇ࡍࡿࡇ࡜࡟ࡼࡾࠊ⡆౽࠿ࡘ㧗ရ㉁࡞Ⅳ⣲㸭ࢭ࣑ࣛࢵࢡࢫ」ྜᮦᩱࡢస〇࡟ᡂຌࡋ࡚࠸ࡿ>@ࠋᮏ◊✲࡛ࡣࠊ㧗࠸㟁Ẽᑟ㟁ᛶࢆᣢࡗࡓ࢔࣑ࣝࢼ࣮࢝࣎ࣥ」ྜయࡢస〇ࢆ┠ⓗ࡜ࡋࠊ࣮࢝࣎ࣥࢿࢵࢺ࣮࣡
ࢡࡢཎᩱ࡛࠶ࡿࣔࣀ࣐࣮㔞ࢆቑຍࡉࡏ࡚ࠊ㧗ᑟ㟁ᛶࡢ࢔࣑ࣝࢼ࣮࢝࣎ࣥ」ྜᮦᩱࢆస〇ࡍࡿࠋ㏻ᖖࠊࣔࣀ
࣐࣮࡜ࡋ࡚⏝࠸ࡿ࣓ࢱࢡࣜࣝ࢔࣑ࢻࡸ࣓ࢳࣞࣥࣅࢫ࢔ࢡࣜࣝ࢔࣑ࢻࡢ⁐ゎᗘ࡟ࡣ㝈⏺ࡀ࠶ࡿⅭࠊᮏ◊✲࡛ࡣ࢔࣑ࣝࢼ㔞ࢆῶࡽࡍࡇ࡜࡛࢔࣑ࣝࢼࣔࣀ࣐࣮ẚࢆኚ໬ࡉࡏ࡚࢔࣑ࣝࢼ࣮࢝࣎ࣥ」ྜᮦᩱࢆస〇ࡍࡿࡇ࡜ࢆヨࡳࡿࠋ ᐇ㦂᪉ἲ
ࣔࣀ࣐࣮㸦0HWKDFU\ODPLGH㸧࠾ࡼࡧᯫᶫ๣㸦11̓0HWK\OHQHELVDFU\ODPLGH㸧ࠊศᩓ๣ ࢭࣝࢼ '୰
ிἜ⬡ओ〇 ࡢỈ⁐ᾮࢆㄪᩚࡋࠊࢫ࣮ࣛࣜ୰ࡢࢭ࣑ࣛࢵࢡࢫ⢊య⃰ᗘࡀ ࠊࠊYRO࡜࡞ࡿࡼ࠺࡟࢔࣑ࣝ
ࢼ⢊య㸦$/6*᫛࿴㟁ᕤओ〇㸧ࢆຍ࠼ࠊ࣮࣑࣎ࣝࣝ࡟ࡼࡾࢫ࣮ࣛࣜࢆస〇ࡋࡓࠋ⬺Ἳࠊὀᆺࠊᅛ໬ࠊ
⬺ᆺࠊ஝⇱ࢆ⤒࡚ᚓࡽࢀࡓᡂᙧయࢆࠊ୙άᛶ㞺ᅖẼୗ࡛ Υࠊ ᫬㛫↝ᡂࡋࡓࠋ↝ᡂయࡢᑟ㟁ᛶ࡟ࡘ࠸࡚ࡣᅄ➃Ꮚἲ࡛ࠊⅣ⣲ࡢᵓ㐀ホ౯ࡣ࣐ࣛࣥศගἲ㸦156ओ᪥ᮏศග〇㸧ࢆ⏝࠸࡚ ᐃࡋࡓࠋ ⤖ᯝ࠾ࡼࡧ⪃ᐹᅄ➃Ꮚἲ࡟ࡼࡾồࡵࡓᑟ㟁⋡ࡢ⤖ᯝࢆ )LJ࡟
♧ࡍࠋ⤖ᯝࡼࡾࠊࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏࡿࡇ࡜࡛ࠊ
ᑟ㟁ᛶ࡟㐪࠸ࡀぢࡽࢀࡓࠋࣔࣀ࣐࣮㔞ࢆቑຍࡉࡏࡓ
ヨᩱ࡛ࡣᑟ㟁ᛶࡀྥୖࡍࡿഴྥࡀぢࡽࢀࡓࠋᑟ㟁ᛶࡀྥୖࡋࡓཎᅉ࡜ࡋ࡚ࡣࠊࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏ
ࡓࢤࣝ࢟ࣕࢫࢸ࢕ࣥࢢ↝ᡂయࡢⅣ⣲㔞ࡢቑຍࠊࢢࣛ
ࣇ࢓࢖ࢺ໬ࡢኚ໬ࡀ⪃࠼ࡽࢀࡿࠋ
Fig. 1 ࢫ࣮ࣛࣜ⤌ᡂࡢ␗࡞ࡿ࢔࣑ࣝࢼ-࣮࢝ࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏࡓ㝿ࡢ࣐ࣛࣥࢫ࣌ࢡࢺ
࣎ࣥ」ྜయࡢᑟ㟁ᛶࣝࡼࡾồࡵࡓ್༙ᖜ࠾ࡼࡧᙉᗘẚࢆ )LJ ࡟♧ࡍࠋࡑࡢ⤖ᯝࠊ࣮࢝࣎ࣥᵓ㐀ࢆ♧ࡍ * ࣂࣥࢻࠊ' ࣂࣥࢻࡢࣆ࣮ࢡࡀほᐹࡉࢀࡓࠋࡋ࠿ࡋࠊࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏࡓ࢔࣑ࣝࢼ࣮࢝࣎ࣥ」ྜయࡢᙉᗘẚࠊ್༙ᖜඹ࡟ྠᵝࡢ್ࢆ♧ࡋࡓࡇ࡜࠿ࡽࠊࢢࣛࣇ࢓࢖ࢺᵓ
㐀ࡣኚ໬ࡋ࡞࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋ
ࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏࡓ㝿ࡢ࢔࣑ࣝࢼ࣮࢝࣎
ࣥ」ྜయ୰ࡢⅣ⣲㔞ࡢኚ໬ࢆほᐹࡋࡓࠋ)LJ ࡟ࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏࡓ࢔࣑ࣝࢼ࣮࢝࣎ࣥ」ྜయ
ࡢṧⅣ㔞ࠊⅣ໬⋡ࢆ♧ࡍࠋࡇࡢ⤖ᯝࠊࢫ࣮ࣛࣜ୰ࡢ
Fig. 2 ࢔࣑ࣝࢼయ✚ศ⋡ࢆኚ໬ࡉࡏࡓ㝿ࡢᙉࣔࣀ࣐࣮㔞ࢆቑຍࡉࡏࡓ࢔࣑ࣝࢼయ✚ศ⋡ 9ROᗘẚ࠾ࡼࡧ್༙ᖜ

− 202 −

ヨᩱࡣ⤥Ⅳ㔞ࡀከ࠸ࡇ࡜࠿ࡽṧⅣ㔞ࡣቑຍࡋࡓࡀࠊ
Ⅳ໬⋡ࡣῶᑡഴྥࢆ♧ࡍࡇ࡜ࡀศ࠿ࡗࡓࠋࡇࡢཎᅉ
ࡣࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏࡿࡇ࡜࡛ࠊ࢔࣑ࣝࢼ࢝
࣮࣎ࣥ」ྜయࡢᚤ⣽ᵓ㐀ࡀኚ໬ࡋⅣ໬⋡ࡀኚ໬ࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ
ࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏࡓ࢔࣑ࣝࢼ࣮࢝࣎ࣥ」ྜయ୰ࡢ࣮࢝࣎ࣥࡢᏑᅾ఩⨨ࡢほᐹࢆ⾜ࡗࡓࠋ)LJ ࡟≉ᚩⓗ࡞࣮࢝࣎ࣥᏑᅾ఩⨨ࢆ♧ࡍࠋ࢔࣑ࣝࢼ
࣮࢝࣎ࣥ」ྜయ୰࡛࣮࢝࣎ࣥࡢᏑᅾ⟠ᡤ࡟ࡣୗグࡢࡼ࠺࡞≉ᚩࡀぢࡽࢀࡓࠋ
D ࢔࣑ࣝࢼ⢏Ꮚࢆそ࠺ᵝ࡟ศᕸࡍࡿ࣮࢝࣎ࣥ
Fig. 3 ࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏࡓ࢔࣑ࣝࢼࣔࣀ࣐࣮ࡀ࢔࣑ࣝࢼ⢏Ꮚࢆそ࠸ࠊࣔࣀ࣐࣮ࡀⅣ໬࣮࢝࣎ࣥ」ྜయࡢṧⅣ㔞ࠊⅣ໬⋡ࡋࡓࡇ࡜࡛࢔࣑ࣝࢼ⢏Ꮚࡢ࿘ᅖ࡟࣮࢝࣎ࣥࡀᏑᅾ
ࡋࡓࡇ࡜ࡀཎᅉࡔ࡜⪃࠼ࡽࢀࡿࠋ
(a)(b)
E ࣮࢝࣎ࣥࢆᯫᶫࡍࡿ࣮࢝࣎ࣥ
࿘ᅖ࢔࣑ࣝࢼ⢏Ꮚྠኈࡢ⢏ᡂ㛗࡟ࡼࡗ࡚࣮࢝࣎
ࣥࡀᘬࡗᙇࡽࢀࡿࡼ࠺࡟Ⅳ໬ࡋࡓࡇ࡜࡛ࠊ࣮࢝࣎ࣥ
ࢆᯫᶫࡍࡿ࣮࢝࣎ࣥࡀᏑᅾࡋࡓࡇ࡜ࡀཎᅉࡔ࡜⪃
100nm
100nm
࠼ࡽࢀࡿࠋ
F ⢏ᡂ㛗ࡋࡓ࢔࣑ࣝࢼ⢏Ꮚෆ࡟Ꮡᅾࡍࡿ࣮࢝࣎ࣥ
࢔࣑ࣝࢼ⢏Ꮚࡢ⢏ᡂ㛗ࡋࡓ㝿࡟ྲྀࡾṧࡉࢀࡓࣔ (c)ࣀ࣐࣮ࡀⅣ໬ࡋ⢏ᡂ㛗ࡋࡓ࢔࣑ࣝࢼ⢏Ꮚෆ࡟Ꮡᅾ
ࡍࡿ࣮࢝࣎ࣥࡀᏑᅾࡋࡓࡇ࡜ࡀཎᅉࡔ࡜⪃࠼ࡽࢀࡿࠋ⤖ᯝࡼࡾࠊࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏࡿࡇ࡜࡟ࡼࡾࠊ
100nmᏑᅾࡍࡿ࣮࢝࣎ࣥࡢഴྥ࡟㐪࠸ࡀぢࡽࢀࡓࠋ࢔࣑ࣝ
Fig. 4 ࢔࣑ࣝࢼ-࣮࢝࣎ࣥ」ྜయ୰ࡢ࣮࢝࣎
ࢼయ✚ศ⋡ࡢ኱ࡁ࠸࢔࣑ࣝࢼ࣮࢝࣎ࣥ」ྜయ࡯࡝
ࣥࡢᏑᅾ఩⨨ࠋ(a) ࢔࣑ࣝࢼ⢏Ꮚࢆそ࠺ᵝ࡟ศF ࡢ࣮࢝࣎ࣥࡢᏑᅾࡀከ࠸ഴྥࡀぢࡽࢀࡓࠋࡇࢀ
ᕸࡍࡿ࣮࢝࣎ࣥࠊ(b)ᯫᶫᵓ㐀࣮࢝࣎ࣥࠊ(c) ⢏ࡣࣔࣀ࣐࣮㔞ࢆቑຍࡉࡏࡓࡇ࡜࡛ࠊ࢔࣑ࣝࢼࡢ⢏ᡂᡂ㛗ࡋࡓ࢔࣑ࣝࢼ⢏Ꮚෆ࡟Ꮡᅾࡍࡿ࣮࢝࣎ࣥ
㛗ࡀጉࡆࡽࢀࡓࡇ࡜࡛ & ࡢ࣮࢝࣎ࣥࡢᏑᅾࡀῶᑡ
ࡋࡓࡓࡵࡔ࡜⪃࠼ࡽࢀࡿࠋ ⤖ㄽ
ࢫ࣮ࣛࣜ୰ࡢ࢔࣑ࣝࢼࣔࣀ࣐࣮ẚࢆኚ໬ࡉࡏࡿࡇ࡜࡛ࠊ࣮࢝࣎ࣥ㔞ࡀቑຍࡋ࢔࣑ࣝࢼ࣮࢝࣎ࣥ」ྜయࡢ
ᑟ㟁⋡ࢆቑຍࡉࡏࡿࡇ࡜ࡀฟ᮶ࡓࠋᑟ㟁⋡ࡣ >6FP@࡛࠶ࡗࡓࠋ
ࡲࡓࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏ࡚ࡶࢢࣛࣇ࢓࢖ࢺᵓ㐀ࡣኚ໬ࡋ࡞࠿ࡗࡓࠋࡋ࠿ࡋࠊࢫ࣮ࣛࣜ⤌ᡂࢆኚ໬ࡉࡏ
ࡿࡇ࡜࡟ࡼࡾⅣ໬⋡ࡸᚤ⣽ᵓ㐀࡟㐪࠸ࡀぢࡽࢀࡓࠋࣔࣀ࣐࣮㔞ࢆቑຍࡉࡏࡿࡇ࡜࡛ࠊⅣ໬⋡ࡣపୗࡋᚤ⣽ᵓ㐀࡟ࡣẼᏍࡀከࡃほᐹࡉࢀࡓࠋࡇࢀࡣࠊࣔࣀ࣐࣮㔞ࡀቑຍࡋࠊ࢔࣑ࣝࢼ⢏Ꮚࡢ⢏ᡂ㛗ࡀ㉳ࡁ࡟ࡃࡃ࡞ࡗ
ࡓࡓࡵẼᏍࡢᏑᅾࡀぢࡽࢀࡓ࡜⪃࠼ࡽࢀࡿࠋ  ཧ⪃ᩥ⊩>@7.DWR76KLUDL+:DWDQDEH0)XML07DNDKDVKL͆(IIHFWRIWKH3RO\PHU6WUXFWXUHLQ
D*HOFDVW*UHHQ%RG\RQ*UDSKLWL]DWLRQ͇&HUDP7UDQV  㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 203 −

ᚤ⢏Ꮚࠊࢼࣀ⢏Ꮚࡢᵓ㐀ไᚚ࡜≉ᛶホ౯㸸MgTi2O5 ⢊ᮎࡢ⢏Ꮚᙧែไᚚ࡜ίỈࣇ࢕ࣝࢱ࣮࡬ࡢᛂ⏝⟃Ἴ኱Ꮫᩘ⌮≀㉁⣔≀㉁ᕤᏛᇦ 㕥ᮌ ⩏࿴
㸯㸬ࡣࡌࡵ࡟ ஧ࢳࢱࣥ㓟࣐ࢢࢿࢩ࣒࢘(MgTi2O5)ࡣᇶᮏ⤌ᡂᘧ Me3O5 ࡛⾲ࡉࢀࡿᨃࣈࣝࢵ࢝࢖ࢺᆺᵓ㐀ࢆ᭷ࡍࡿ」㓟໬≀࡛࠶ࡿࠋᨃࣈࣝࢵ࢝࢖ࢺᆺᵓ㐀⏤᮶ࡢ⇕⭾ᙇ␗᪉ᛶࢆᣢࡕࠊࣂࣝࢡయ඲య࡜ࡋ࡚ప⇕⭾ᙇ⋡ࢆ♧ࡍࡶࡢࡢࠊࡇࡢ⇕⭾ᙇ␗᪉ᛶ࡟ࡼࡗ࡚ࣂࣝࢡయ୰࡟࣐࢖ࢡࣟࢡࣛࢵࢡࡀ⏕ࡌࠊᶵᲔⓗ≉ᛶࡀຎ໬ࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋᡃࠎࡢࢢ࣮ࣝ
ࣉ࡛ࡣࡇࢀࡲ࡛ࠊࣇࢵ໬ࣜࢳ࣒࢘(LiF)ࢆཎᩱ⢊ᮎ࡟ᑐࡋ࡚ 0.5 wt.%ῧຍࡍࡿࡇ࡜࡛ࠊ⢏Ꮚࡀࣟࢵࢻ≧࡟ᡂ㛗ࡋࡓ
MgTi2O5 ⢊ᮎࡀᚓࡽࢀࡿࡇ࡜ࢆሗ࿌ࡋ࡚ࡁࡓࠋLiF ῧຍ㔞ࢆㄪᩚࡍࡿࡇ࡜࡟ࡼࡾࠊ⢏Ꮚᙧែไᚚ࡟ࡼࡿ㧗㠎໬➼ࡀྍ⬟࡞ࡢ࡛ࡣ࡞࠸࠿࡜⪃࠼ࡽࢀࡿࠋ୍᪉ࠊLiF ࢆῧຍࡋ࡞࠸ MgTi2O5 ࡣ➼㍈≧ࡢ⢏Ꮚ࡟ࡼࡗ࡚ᵓᡂࡉࢀ࡚࠾ࡾࠊẚ㍑ⓗ㧗ᙉᗘ࡞ከᏍయ࣐ࢺࣜࢵࢡࢫ࡟㐺ࡋ࡚࠸ࡿࠋᮏ◊✲࡛ࡣᑗ᮶ⓗ࡞ᕤᴗࣉࣟࢭࢫ໬ࢆ᝿ᐃࡋࠊ⡆᫆࡞ࣉࣟࢭࢫ࡛
Ⰻ㉁࡞ MgTi2O5 ⢊ᮎࢆᚓࡿࡇ࡜ࠊࡲࡓࠊᚓࡽࢀࡓ MgTi2O5 ⢊ᮎࢆ⏝࠸ࡓᯈ≧ίỈࣇ࢕ࣝࢱ࣮ࡢస〇ཬࡧホ౯ࢆ┠ⓗ࡜ࡋࡓࠋ㸰㸬ᐇ㦂᪉ἲ ཎᩱ⢊ᮎ࡜ࡋ࡚ MgCO3 (basic) ࡜ TiO2 (anatase)ࢆ⏝࠸ࠊ㖔໬๣࡜ࡋ࡚ LiF ࢆ⏝࠸ࡓࠋMg ࡜ Ti ࡀཎᏊẚ࡛ 1:2
࡜࡞ࡿࡼ࠺୧⢊ᮎࢆ⛗㔞ࡋࠊLiF ࢆཎᩱ⢊ᮎ࡟ᚤ㔞ῧຍࡋ࡚࢚ࢱࣀ࣮ࣝ୰ࠊ‵ᘧ࣮࣑࣎ࣝࣝΰྜࢆ⾜ࡗࡓࠋῶᅽ஝
⇱ᚋࠊΰྜ⢊ᮎࢆࡩࡿ࠸ࡀࡅࡋࠊ኱Ẽ୰ 1100 ÛC ࡛ 2 ᫬㛫௬↝ࡍࡿࡇ࡜࡛ MgTi2O5 ⢊ᮎࢆᚓࡓࠋᚓࡽࢀࡓ MgTi2O5⢊ᮎࡢᵓᡂ┦ࢆ X ⥺ᅇᢡ(XRD)࡟࡚ྠᐃࡋࠊ⢏Ꮚࡢᚤᵓ㐀ࢆ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾(SEM)࡟࡚ほᐹࡋࡓࠋྜᡂࡋࡓ LiF
ῧຍ MgTi2O5 ⢊ᮎ࡜↓ῧຍࡢ MgTi2O5 ⢊ᮎࡢࡑࢀࡒࢀࢆࠊ୍㍈ຍᅽ࡟ࡼࡾ࣌ࣞࢵࢺ≧࡟ᡂᆺࡋࠊᡂᆺࡋࡓ࣌ࣞࢵ
ࢺࢆᡤᐃࡢ ᗘ࡟࡚↝⤖ࡍࡿࡇ࡜࡛ࠊᯈ≧ࡢίỈࣇ࢕ࣝࢱ࣮ࢆస〇ࡋࡓࠋస〇ࡋࡓࣇ࢕ࣝࢱ࣮ࢆ⏝࠸࡚ࠊ࣮࣐࣋࢖
ࢺ⢊ᮎᠱ⃮ᾮࢆῶᅽℐ㐣ࡋࠊࡑࡢ㏱㐣ᾮࡢ⃮ᗘཬࡧ㏱㐣㔞ࢆ ᐃࡍࡿࡇ࡜࡛ࠊࣇ࢕ࣝࢱ࣮≉ᛶࡢホ౯ࢆ⾜ࡗࡓࠋ㸱㸬⤖ᯝ࡜⪃ᐹ LiF ࢆῧຍࡍࡿࡇ࡜࡛Წ≧࡟Ⰻࡃᡂ㛗ࡋࡓࠊ␗᪉ᛶࡢ㧗࠸ MgTi2O5 ⢏Ꮚࡀᚓࡽࢀࡓ[1]ࠋLiF ῧຍ MgTi2O5 ⢏Ꮚ⾲㠃ࡀ⁥ࡽ࠿࡛࠶ࡿࡇ࡜࠿ࡽࠊLiF ࡀ⢏Ꮚ⾲㠃࡛ᾮ┦ࢆᙧᡂࡋࠊ㖔໬๣࡜ࡋ࡚ാ࠸ࡓ࡜⪃࠼ࡽࢀࡿ (Fig. 1) ࠋLiF ῧຍࠊ↓ῧຍࡢ MgTi2O5 ⢊ᮎࢆ⏝࠸ࡓίỈࣇ࢕ࣝࢱ࣮ࡢ≉ᛶホ౯㸦Fig. 2㸧ࡢヲ⣽࡟ࡘ࠸࡚ࡣㄽᩥᢞ✏୰࡛࠶ࡿࠋ

Fig.1 LiF ῧຍ࡟ࡼࡿ MgTi2O5 ⢊ᮎࡢᙧែไᚚ㸦኱㜰኱Ꮫ᥋ྜ◊ SU-70 ࡟࡚᧜ᙳ㸧.

− 204 −

Fig. 2 MgTi2O5 ࣇ࢕ࣝࢱ࣮ࢆ⏝࠸ࡓίỈヨ㦂ࡢ୍౛.
ㅰ ㎡
 ᮏඹྠ◊✲ࢆᐇ᪋ࡍࡿ࡟㝿ࡋࠊཷධᢸᙜᩍဨࡢ㜿㒊ᾈஓ෸ᩍᤵ㸦ࢫ࣐࣮ࢺࣉࣟࢭࢫ◊✲ࢭࣥࢱ࣮㸧ࠊࡲࡓࠊ౗㛫࿴⏨ᵝ࡟኱ኚ࠾ୡヰ࡟࡞ࡾࡲࡋࡓࠋࡲࡓࠊ✚ᴟⓗ࡟ᐇ㦂ࢆ㐍ࡵ࡚ࡃࢀࡓ୰㉺ᝆኴྩ࡟グࡋ࡚ឤㅰ࠸ࡓࡋࡲࡍࠋᮏ
◊✲ࡢ୍㒊ࡣࠊ⛉◊㈝ᇶ┙◊✲㸦% ࠕᨃࣈࣝࢵ࢝࢖ࢺᆺᵓ㐀ࢆ᭷ࡍࡿప⇕⭾ᙇ࣭⎔ቃㄪ࿴ᆺࢭ࣑ࣛࢵࢡࢫከᏍయࡢ
ᛂ⏝ࠖ㸦㸧࡟ࡼࡾຓᡂࡉࢀࡲࡋࡓࠋཧ⪃ᩥ⊩[1] Y. Nakagoshi and Y. Suzuki, "Morphology control of pseudobrookite-type MgTi2O5 powders by LiF doping," Int. Lett.
Chem. Phys. Astro., 46, 37-41 (2015).
  㸦ඹྠ◊✲ศ㔝:ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 205 −

Si3N4

1
Si3N4
Si3N4

Si

N2

Si3N4

Si3N4

Si
Si3N4

2
Si
( ) AKP-30

Al2O315mm×8mm
1375
2h

( )

-6ȝm
Si

45mm×35mm×5mm
0.9MPa N2

Y2O3( ) BB
Si3N4 Y2O3 Al2O3 92 5 3
NOB-130
CIP
0.15MPa N2
1800
2h
XRD
SEM

3
Fig. 1
SEM

Si
Si

EDS
Y2O3

Si
Al2O3

Si
Fig.2
XRD
-Si3N4 -Si3N4

Si

XRD

Fig. 1
SEM(a) 3kW, (b) 4kW, (c) 5kW, (d)

Si

70
90
-Si3N4Si

Si
Si

Fig. 3Si
Fig. 4
SEM
Si− 206 −

Fig. 2(a) 3kW, (b) 4kW, (c) 5kW, (d)ฎ⌮䛷䛿ฟຊ䛾ቑຍ䛻క䛳䛶ᚤᵓ㐀䛿䜘䜚ᆒ୍䛻䛺䜛䛣䛸䜒᫂䜙䛛䛸䛺䛳䛯䚹䛩䛺䜟䛱䚸ᶵᲔⓗ⢏Ꮚ」ྜ໬䛻䜘䛳䛶Si ⢏Ꮚ䛾⾲㠃䛻↝⤖ຓ๣䜢」ྜ໬䛥䛫䜛䛣䛸䛻䜘䜚䚸ෆ㒊䜎䛷ᆒ㉁䛺❅໬ฎ⌮䛜ྍ⬟䛷䛒䜛䛣䛸䛜䜟䛛䛳䛯䚹䛣䜜䜙䛾❅໬཯ᛂᚋ䛾ヨᩱ䜢㧗 䛷⦓ᐦ໬䛧䛯ヨᩱ䛾ᵓᡂ┦䛿䚸ȕ-Si3N4 䛾䜏䛷䛒䛳䛯䚹䜎䛯䚸䛣䜜䜙䛾┦ᑐᐦᗘ䛿⣙ 98䠂⛬ᗘ䛷䛒䛳䛯䛜䚸䝪䞊䝹䝭䝹ฎ⌮䜘䜚䜒ᶵᲔⓗ⢏Ꮚ」ྜ໬ฎ⌮䛾᪉䛜䜟䛪䛛䛻㧗䛔್䛸䛺䛳䛯䚹Fig. 5 䛻⦓ᐦ໬ᚋ䛾ヨᩱ䛾ᚤᵓ㐀䛾 SEM ෗┿䜢♧䛩䚹䝪䞊䝹䝭䝹ฎ⌮䛷స〇䛧䛯ヨᩱ䛷䛿ከᩘ䛾⢒኱䛺ẼᏍ䛜Ꮡᅾ䛧䛶䛔䛯䛾䛻ᑐ䛧䛶䚸ᶵᲔⓗ⢏Ꮚ」ྜ໬ฎ⌮䛷䛿ṧᏑ䛩䜛ẼᏍ䛜ᑡ䛺䛔䛣䛸䛜☜ㄆ䛥䜜䛯䚹≉䛻䚸ᶵᲔⓗ⢏Ꮚ」ྜ໬ฎ⌮᫬䛾ฟຊ䛾ቑຍ䛸ඹ䛻䚸ほᐹ䛥䜜䜛ẼᏍ䜒ῶᑡ䛧䛯䚹௨ୖ䜘䜚䚸ᶵᲔⓗ⢏Ꮚ」ྜ໬ฎ⌮䛻䜘䜚↝⤖ຓ๣䛷䛒䜛ᚤ⢏Ꮚ䜢ᆒ୍䛻ศᩓ䛥䛫䛶」ྜ⢏Ꮚ䛸䛩䜛䛣䛸䛷䚸ᆒ㉁䛛䛴⦓ᐦ䛺 Si3N4 䝉䝷䝭䝑䜽䝇䛜ᚓ䜙䜜䜛䛣䛸䛜䜟䛛䛳䛯䚹4. ⤖ㄽᶵᲔⓗฎ⌮䛻䜘䜚 Si-Y2O3-Al2O3 」ྜ⢏Ꮚ䜢ㄪ〇䛧䛯䚹䛣䜜䜢฼⏝䛧䛶ᡂᙧయ䜢స〇䛧䚸❅⣲୰䛷↝ᡂ䛧䛯⤖ᯝ䚸䝪䞊䝹䝭䝹ฎ⌮䛻䜘䜛ΰྜ⢊య䛸ẚ㍑䛧䛶ᆒ㉁䛛䛴㧗䛔๭ྜ䛷❅໬཯ᛂ䛜㐍⾜䛩䜛䛣䛸䛸䛜䜟䛛䛳䛯䚹䜎䛯䚸ᚓ䜙䜜䛯❅໬య䜢㧗 䛷↝ᡂ䛧䛯⤖ᯝ䚸」ྜ⢏Ꮚ䜢⏝䛔䜛䛣䛸䛷⦓ᐦ䛷ᆒ୍䛺ᚤᵓ㐀䜢᭷䛩䜛 Si3N4 䝉䝷䝭䝑䜽䝇䜢స〇䛷䛝䜛䛣䛸䛜᫂䜙䛛䛸䛺䛳䛯䚹䠄ඹྠ◊✲ศ㔝䠖䝇䝬䞊䝖䝁䞊䝔䜱䞁䜾䝥䝻䝉䝇ศ㔝䠅

Fig. 3㻌 ཯ᛂ↝⤖య䛾᩿㠃䛾෗┿㻌(a) 3kW, (b) 4kW, (c) 5kW, (d) ‵ᘧ࣮࣑࣎ࣝࣝ

Fig. 4㻌 ❅໬཯ᛂ↝⤖య䛾ᚤᵓ㐀䛾 㻿㻱㻹 ෗┿(a) 3kW, (b) 4kW, (c) 5kW, (d) ‵ᘧ࣮࣑࣎ࣝࣝ

Fig. 5 ⦓ᐦ໬ࡋࡓ Si3N4 ࢭ࣑ࣛࢵࢡࢫࡢ SEM ෗┿(a) 3kW, (b) 4kW, (c) 5kW, (d) ‵ᘧ࣮࣑࣎ࣝࣝ

㻌− 207 −

ᚤ⢏Ꮚไᚚ࡟ࡼࡿࢭ࣑ࣛࢵࢡࢫࡢ࣑ࢡࣟ࠾ࡼࡧ࣐ࢡࣟᵓ㐀ไᚚ࡜≉ᛶホ౯㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ ᕤᏛ◊✲⛉ ≀㉁ᮦᩱᕤᏛᑓᨷ⏣୰ㅍ1.┠ⓗࢭ࣑ࣛࢵࢡࢫࡣࠊ
ཎᩱ⢊యࢆᡂᙧᚋࠊ
↝⤖ࡋ࡚ᚓࡽࢀࡿࣃ࢘ࢲ࣮ࣉࣟࢭࢫ࡛స〇ࡉࢀࡿࠋࣃ࢘ࢲ࣮ࣉࣟࢭࢫ࡛ࡣࠊ
ཎᩱ⢊యࡸ㢛⢏ࡢᛶ᝟ࠊᡂᙧయࡢ⢏Ꮚ඘ሸᵓ㐀ࡀࠊ↝⤖యࡢᵓ㐀࡟ᙉ࠸ᙳ㡪ࢆ࠾ࡼࡰࡍࠋࡇࢀࡲ࡛ගᏛ㢧ᚤ㙾ࢆ⏝࠸ࡓ┤᥋ほᐹἲ࡟ࡼࡿࢭ࣑ࣛࢵࢡࢫ〇㐀ࣉࣟࢭࢫ࡟࠾ࡅࡿ୍㐃ࡢ◊✲ࢆ⾜ࡗ࡚࠸ࡿࠋᡂᙧయࡢほᐹ࡛ࡣࠊ㢛⢏ࡢᙧ≧ࡣᡂᙧయ୰࡟ᴫࡡṧࡾࠊ୙ᆒ୍࡞ᵓ㐀࡜࡞ࡿࡇ࡜ࢆ♧ࡋࡓࠋࡲࡓࠊ↝⤖యࡢほᐹ࡟ࡼࡗ࡚ࠊᡂᙧయ࡛ࡳࡽࢀࡓᵓ
㐀ࡀ↝⤖యᵓ㐀࡟ࡶ཯ᫎࡉࢀࠊ㢛⢏ᙧ≧࡟⏤᮶ࡍࡿ࡜᥎ᐹࡉࢀࡿ⢒኱Ḟ㝗ࡀከࡃほᐹࡉࢀࡓࠋ᫖ᖺᗘࠊᚤ⣽࡞୍ḟ⢏Ꮚ࠿ࡽ࡞ࡿ㢛⢏ࢆ⏝࠸࡚ࠊࢭ࣑ࣛࢵࢡࢫ↝⤖యࡢᵓ㐀ᆒ㉁໬ࢆ᳨ウࡋࡓࠋࡑࡢ⤖ᯝࠊ࠸ࡃࡘ࠿ࡢ⢒኱Ḟ㝗ࡣᾘ⁛ࡍࡿࡀࠊ࠸ࡃࡘ࠿ࡢ⢒኱Ḟ㝗ࡣṧ␃ࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡑࡇ࡛ᮏᖺᗘࡣࠊᡂᙧయ࠿ࡽ↝⤖యࡲ࡛ࡢᵓ㐀ࡢኚ໬࡟ࡘ࠸࡚ࠊ㏆ᖺ㛤Ⓨࡀ㐍ࡴ㹶⥺࣐࢖ࢡࣟ CT ࢆ⏝࠸࡚㏣㊧ࡋࠊ⢒኱Ḟ㝗ࡢⓎ㐩ࣉࣟࢭࢫࢆ᳨ウࡋࡓࠋ
2. ᐇ㦂᪉ἲཎᩱ࡟ࡣ୍ḟ⢏Ꮚࡀ 0.15ȝm ࡢ㧗⣧ᗘ࣭ᚤ⣽⢊࠿ࡽ࡞ࡿ࢔࣑ࣝࢼ㢛⢏㸦኱᫂໬Ꮫ DS-31㸧ࢆ⏝࠸ࡓࠋ⏝࠸ࡓ࢔࣑ࣝࢼ㢛⢏ࡣࠊᡂᙧຓ๣࡜ࡋ࡚ࣂ࢖ࣥࢲࢆྵࡴࠋࡇࡢ㢛⢏ࢆ㔠ᆺ࡟඘ሸࡋࠊ୍㍈ຍᅽ 40MPa ࡛ຍᅽᡂᙧᚋࠊ෭㛫㟼Ỉຍᅽἲ㸦CIP㸧࡛ 200MPa ࡢ㟼Ỉᅽࢆ࠿ࡅ࡚ᡂᙧయ࡜ࡋࡓࠋ800°C ࡛⬺⬡ᚋࠊ900°C ࠿ࡽ 1350°C ࡲ࡛ࠊ↝⤖ᗘࢆ 50ιC ࡎࡘ㧗ࡃࡋࡓࠋ᪼ ㏿ᗘࡣ 5ιC/min ࡛࠶ࡿࠋᡤᐃࡢ ᗘ࡟฿㐩ᚋࠊࡑࡢ㒔ᗘࠊヨᩱࢆ㟁Ẽ⅔࠿ࡽྲྀࡾฟࡋࠊ࣐࢖ࢡࣟ CT ࡛ほᐹࢆ⾜ࡗࡓࠋ3. ᐇ㦂⤖ᯝ
 Fig.1 ࡟࢔࣑ࣝࢼ㢛⢏࠾ࡼࡧᡂᙧయࡢᾐᾮ㏱ග⏬ീࢆ♧ࡍࠋ㢛⢏ࡣ┤ᚄ 50-100ȝm ࡢ⌫ᙧ࡛࠶ࡿࡀࠊෆ㒊࡟❑ࡳࢆࡶࡘࠋᡂᙧయ࡛ࡣ࠸ࡎࢀࡶ㢛⢏ࡢᙧ≧ࡀほᐹࡉࢀࡓࠋᡂᙧయෆࡢṧᏑ㢛⢏ࡢᙧ≧ࡣ⌫ᙧ࡟㏆ࡃࠊ㢛⢏㛫ࡢ㝽㛫ࡶ᫂░࡛࠶ࡿࠋࡇࢀࡣ㢛⢏ࡢ◳ࡵࡢ≉ᛶ࡜ᑐᛂࡍࡿࠋࡇࢀࡲ࡛ᡂᙧయ࠾ࡼࡧ↝⤖యࡢほᐹ࠿ࡽࠊᡂᙧయ࡛ࡣ⢒኱Ḟ㝗ࡢཎᅉ࡜࡞ࡿ㢛⢏⑞➼ࡢ୙ᆒ୍࡞඘ሸᵓ㐀ࡀከᩘ☜ㄆࡉࢀ࡚࠸ࡿࠋࡑࡋ࡚ࠊࡑࡢ୰ࡢ࠸ࡎࢀ࠿ࡀ↝⤖࡟కࡗ࡚⢒኱Ḟ㝗໬ࡋ࡚࠸ࡿࡇ࡜ࡀ᥎ᐹࡉࢀࡓࠋFig.2 ࡟ࠊ࣐࢖ࢡࣟ CT ࡟ࡼࡿࠊྠ୍⟠ᡤࡢẼᏍࡢศᕸࡢẚ㍑ࢆ♧ࡍࠋ┦ᑐᐦᗘࡣࠊࡑࢀࡒࢀ 60%ࠊ95㸣࡛࠶ࡿࠋࡇࡇ࡛ࡣࠊ ᐃྍ⬟࡞ 1ȝm ௨ୖࡢẼᏍࢆ♧ࡋࡓࠋ900ιC ࡢప ࡛ࡣᚤ⣽࡞ẼᏍࡀᆒ୍࡟Ꮡᅾࡋ࡚࠸ࡿࡼ࠺࡟ほᐹࡉࢀࡿࠋ┠❧ࡘẼᏍࡣ 5ȝm ⛬ᗘࡢ኱ࡁࡉ࡛ࠊ」ᩘࡢ㢛⢏ࡢ㛫ࡢ㝽㛫࡟࠶ࡿࠋ㐃⥆ⓗ࡞ほᐹ࠿ࡽࠊ↝⤖ࡀ㐍ࡴ࡜࡜ࡶ࡟ࠊࡑࢀࡽࡀⓎ㐩ࡋࠊ⢒኱࡞ẼᏍࡀ࿘ᅖࡢẼᏍࢆ㞟⣙ࡋࠊ⢒኱໬ࡍࡿࡇ࡜ࡀ
☜ㄆࡉࢀࡓࠋᚑ᮶ࠊẼᏍࡢ⢒኱໬ࡣࠊ㧗 ࡛⢏ᡂ㛗࡜ేࡏ࡚㐍⾜ࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࡀࠊᐇ㝿ࡣࠊ↝⤖୰ᮇ࡛ࡶほᐹࡉࢀࡓࠋࡇࢀࡽࡣࠊྠ୍ࡢࢧࣥࣉࣝࢆ⏝࠸ࡓᡂᙧయ࠿ࡽ↝⤖యࡲ࡛ࡢẁ㝵ⓗ࡞ෆ㒊ᵓ㐀ほᐹ࡟ࡼࡗ࡚ࠊࡣࡌ
ࡵ࡚᫂ࡽ࠿࡟࡞ࡗࡓ஦㇟࡛࠶ࡿࠋFig.3 ࡟↝⤖࡟క࠺⢒኱ẼᏍࡢኚ໬ࢆ♧ࡍࠋࡇࢀࡼࡾ 5ȝm ௨ୖࡢ⢒኱ẼᏍࡀ↝⤖୰ᮇ࡟Ⓨ㐩ࡋࠊࡉࡽ࡟ 1200ιC ࢆ㉸࠼ࡿ㡿ᇦ࡛ࡣ 10ȝm ௨ୖࡢẼᏍࡀⓎ㐩ࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡇࢀࡽࡼࡾࠊ
ࡲࡎࠊ㢛⢏ෆ࡛ࡢ↝⤖ࡀ 1200ιC ௜㏆ࡲ࡛࡟࠾ࡇࡾࠊᑠࡉ࡞ẼᏍࡣ㢛⢏㛫࡟᤼ฟࡉࢀࠊḟ࡟ࠊࡑࢀ௨ୖࡢ㧗 ࡛ࡣࠊ㢛⢏㛫ࡢ↝⤖ࡀ㛤ጞࡋ࡚ࠊ௒ᗘࡣ㢛⢏㛫ࡢ኱ࡁ࡞ẼᏍࡀࠊ᤼ฟࡉࢀࡓẼᏍࢆ㞟⣙ࡋ࡚Ⓨ㐩ࡋࡓ࡜᥎ᐹࡉࢀࡿࠋ௒ᚋ
⢒኱Ḟ㝗ࢆⓎ㐩ࡉࡏ࡞࠸ࡓࡵ࡟ࡣࠊ᰾࡜࡞ࡿᡂᙧయෆࡢ㢛⢏㛫ࡢẼᏍ࡜ࡑࡢᙧᡂ࡟࠾ࡼࡰࡍ㢛⢏ࡢᛶ≧࡜ࡢ㛵ಀࢆ᳨ウࡍࡿᚲせࡀ࠶ࡿࠋ− 208 −

(a)

(b)

100ȝm

50ȝm
Fig.1 Internal macrostructures of granule (a) , and powder compacts (b)
(b)

(a)

100ȝm

The number of pores in unit volume

Fig.2 Internal pore distribution of sintered ceramics (a)950ιC (b) 1300ιC

100ȝm

(b)

(a)

de-binder

950 1000

1050 1100

1150

1200

1250 1300 1350

Temperature / ιC
Fig.3 Pore size distributions of internal pore of sintered ceramics
 (ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 209 −

⢏Ꮚ䝧䞊䝇䝰䝕䝹䜢⤌䜏㎸䜣䛰 DEM 䝅䝭䝳䝺䞊䝅䝵䞁䛻䜘䜛䝭䝹䛾ゎᯒ᪩✄⏣኱Ꮫ㻌 ⌮ᕤᏛ⾡㝔㻌 ⎔ቃ㈨※ᕤᏛ⛉ᡤ㻌 ༓ᬕ
1.㻌 ┠ⓗ㻌 䝘䝜ᮦᩱ䛾〇㐀䝥䝻䝉䝇䛻䛚䛔䛶䠈䝭䝹䛻䜘䜛ᶵᲔⓗฎ⌮䛿㔜せ䛺䝥䝻䝉䝇䛾 1 䛴䛷䛒䜛䚹䛧䛛䛧䛺䛜䜙䠈䛣䜜䜙䛾⿦⨨䛾ᶵᵓ䜔⿦⨨ෆ䛾⢊యᣲື䛿ᴟ䜑䛶」㞧䛷䛒䜚䠈୍⯡䛻ᐃ㔞໬䜔୍⯡໬䛜ᅔ㞴䛷䛒䜛䛣䛸䛜▱䜙䜜䛶䛔䜛䚹䛧䛯䛜䛳䛶䠈䝘䝜ᮦᩱ䛾ရ㉁ྥୖ䛚䜘䜃䝥䝻䝉䝇䛾ຠ⋡໬䜢┠ⓗ䛸䛧䛯ヲ⣽䛺ᶵᵓゎ᫂䛻ᑐ䛧䛶䛿䠈䝅䝭䝳䝺䞊䝅䝵䞁䛻䜘䜛䜰䝥䝻䞊䝏䛜ᐇ㦂䜢⿵᏶䛩䜛᪉ἲ䛸䛧䛶ᗈ䛟ᮇᚅ䛥䜜䛶䛔䜛䚹⢊య䛾㛵䜟䜛ㅖ⌧㇟䜢䝅䝭䝳䝺䞊䝅䝵䞁䛩䜛ᡭἲ䛸䛧䛶䛿䠈㞳ᩓせ⣲ἲ䠄discrete element method; DEM䠅[1]䛜ᗈ䛟⏝䛔䜙䜜䛶䛔䜛䚹ᚑ᮶䛾 DEM 䝅䝭䝳䝺䞊䝅䝵䞁䛷䛿⌫ᙧ⢏Ꮚ䜢ᑐ㇟䛸䛧䛯◊✲䛜ከ䛔䛜䠈ᐇᅾ䛾ᑐ㇟⢏Ꮚ䛿」㞧ᙧ≧䛷䛒䜛䛣䛸䛜ᅽಽⓗ䛻ከ䛔䛣䛸䜢㚷䜏䠈ᮏ◊✲䛷䛿䠈⢏Ꮚ䝧䞊䝇䝰䝕䝹䜢 DEM䝅䝭䝳䝺䞊䝅䝵䞁䛻⤌䜏㎸䜏䠈䝭䝹ෆ䛾⢏Ꮚᣲື䜢ヲ⣽䛻ᢕᥱ䛩䜛䛣䛸䜢┠ⓗ䛸䛧䛯䚹ᮏ◊✲䛷䛿≉䛻䠈⌫ᙧ⢏Ꮚ䛸䛿ᣲື䛜ᴟ➃䛻␗䛺䜛䛸ண᝿䛥䜜䜛ᯈ≧⢏Ꮚ䜢ᑐ㇟䛸䛧䛶䠈䝭䝹ෆ䛾ᣲື䜢෌⌧䛧䠈⢏Ꮚ䝧䞊䝇䝰䝕䝹䛾᭷⏝ᛶ䜢ㄪᰝ䛧䛯䚹2.㻌 ◊✲᪉ἲ
2.1.㻌 䝅䝭䝳䝺䞊䝅䝵䞁ᡭἲ㻌 ᮏ◊✲䛷䛿䠈ᯈ≧⢏Ꮚ䜢ከᩘ䛾ᑠ䛥䛺ᵓᡂ⢏Ꮚ䛾㞟ྜయ䛷䝰䝕䝹໬䛧䛯䚹䜎䛯䠈ィ⟬㈇Ⲵ䜢పῶ䛥䛫䜛䛯䜑䠈䝰䝕䝹໬䛧䛯ᑐ㇟≀䛿๛య䛸௬ᐃ䛧䛯䚹ィ⟬䜰䝹䝂䝸䝈䝮䛻㛵䛧䛶䛿䠈Tanaka 䜙䛜ᥦၐ䛧䛯⢏Ꮚ䝧䞊䝇๛య䝰䝕䝹[2]䜢᥇⏝䛧䛯䚹ᮏ䝰䝕䝹䛷䛿䠈ᑐ㇟≀䜢⢏Ꮚ䛾㞟ྜయ䛷䝰䝕䝹໬䛧䛶䛔䜛䛯䜑䠈ᵓᡂ⢏Ꮚ䛻╔┠䛧䛶⾪✺ุᐃ䛚䜘䜃⾪✺ィ⟬䜢⾜䛺䛖䛣䛸䛜䛷䛝䜛䚹䛭䛾䛯䜑䠈ᇶᮏⓗ䛺ィ⟬䜰䝹䝂䝸䝈䝮䛿䠈ᚑ᮶䛾 DEM 䛸ྠᵝ䛾䜒䛾䜢⏝䛔䜛䛣䛸䛜䛷䛝䜛䚹᥋ゐ䝰䝕䝹䛻䛿⥺ᙧ䝞䝛䠈䝎䝑䝅䝳䝫䝑䝖䛚䜘䜃ᦶ᧿䝇䝷䜲䝎䞊䛛䜙ᵓᡂ䛥䜜䜛 Voigt 䝰䝕䝹䜢⏝䛔䛯䚹䜀䛽ᐃᩘ䛿ィ⟬㈇Ⲵపῶ䛾䛯䜑䛻௬᝿ⓗ䛺್䛸䛧䛯䛜䠈ணഛ䝅䝭䝳䝺䞊䝅䝵䞁䛻䜘䜚䠈䜀䛽ᐃᩘ䛾್䛿ᮏ◊✲䛷ᑐ㇟䛸䛧䛯ィ⟬⤖ᯝ䛻䜋䛸䜣䛹ᙳ㡪䛧䛺䛔䛣䛸䜢☜ㄆ䛧䛶䛔䜛䚹
2.2.㻌 䝅䝭䝳䝺䞊䝅䝵䞁䝰䝕䝹㻌 ᮏ◊✲䛷䛿䠈ⷧ⫗ᙧ≧䜢᭷䛩䜛ᯈ≧⢏Ꮚ䛸䛧䛶㟁Ꮚᇶᯈ䜢ᑐ㇟䛸䛧䛯䚹ᵓᡂ⢏Ꮚ䜢᱁Ꮚ≧䛻㓄⨨䛧䠈ᇶᯈ㒊ศ䜢 1 ᒙ䛾⢏Ꮚ䛷ᵓᡂ䛧䛯ᚋ䠈㒊ရ䜢ᶍᨃ䛧䛯ᵓᡂ⢏Ꮚ䜢䛭䛾ୖ䛻㓄⨨䛧䛯䚹ᇶᯈ 1 ᯛ䛒䛯䜚䠈1320 ಶ䛾ᵓᡂ⢏Ꮚ䜢⏝䛔䛯䚹䜎䛯䠈ᵓᡂ⢏Ꮚ䛾⢏Ꮚᚄ䛿 5 mm 䛸䛧䛯䚹䜎䛯䠈䝭䝹䛿䝗䝷䝮ᆺ⾪ᧁᘧ◚○ᶵ䠄䝟䞊䝒䝉䝟䝺䞊䝍䠈ᖹ⏣ᶵᵓᰴᘧ఍♫䠅䜢ᑐ㇟䛸䛧䛯䚹◚○ᶵ䛾䝗䝷䝮┤ᚄ䛚䜘䜃䝗䝷䝮㧗䛥䛿䛸䜒䛻 0.86 m 䛷䛒䜛䚹◚○ᶵ䛻䛿䠈䝗䝷䝮ᗏ㠃䛻 2 ಶ䛾✺㉳䜢᭷䛩䜛᧠ᢾయ
1 ᯛ䛸䝗䝷䝮ഃ㠃䛻✺㉳䛜 2 䞄ᡤタ⨨䛥䜜䛶䛔䜛䚹ᐇᶵ䛾䝟䞊䝒䝉䝟䝺䞊䝍䛿䠈Ỉᖹ㠃䛻ᑐ䛧䛶 30㼻ഴ䛔䛶䛔䜛䛜䠈ᮏ䝅䝭䝳䝺䞊䝅䝵䞁䛷䛿䠈Ỉᖹ㠃䛻ᑐ䛧䛶ഴᩳ䜢௜䛡䛪䝰䝕䝸䞁䜾䛧䛯䚹◚○ᶵ䛿䠈䝗䝷䝮䛭䛾䜒䛾䛿ᅇ㌿䛫䛪䠈᧠ᢾయ䛷䛒䜛᧠ᢾ⩼䛾䜏䛜ᅇ㌿䛩䜛䛣䛸䛷䠈ヨᩱ䜢᧠ᢾ䞉◚○䛩䜛䚹సᡂ䛧䛯ᇶᯈ䛾䝰䝕䝹䛚䜘䜃◚○ᶵ䛾䝰䝕䝹䜢ᅗ 1 䛻♧䛩䚹

ᅗ 1 ࢩ࣑࣮ࣗࣞࢩࣙࣥࣔࢹࣝ㸦ᕥ㸸ᇶᯈࣔࢹࣝ㸪ྑ㸸◚○ᶵࣔࢹࣝ㸧− 210 −

3.㻌 ⤖ᯝ㻌 ᵓ⠏䛧䛯䝭䝹ෆ䛻䛚䛡䜛⢏Ꮚᣲື䜢ゎᯒ䛩䜛䛯䜑䛻䠈⌫ᙧ⢏Ꮚ䝰䝕䝹䛚䜘䜃⢏Ꮚ䝧䞊䝇䝰䝕䝹䛾 DEM 䝅䝭䝳䝺䞊䝅䝵䞁䜢⾜䛔䠈2 䛴䛾䝰䝕䝹䛾ᣲື䜢ẚ㍑䛧䛯䚹2 䛴䛾䝰䝕䝹䛛䜙ᚓ䜙䜜䛯◚○ᶵෆ䛾⢏Ꮚᣲື䜢ᅗ 2 䛻♧䛩䚹ୖẁ䛜⌫ᙧ⢏Ꮚ䝰䝕䝹䠈ୗẁ䛜⢏Ꮚ䝧䞊䝇䝰䝕䝹䛷䛒䜛䚹䝅䝭䝳䝺䞊䝅䝵䞁᮲௳䛿䠈ヨᩱᢞධᩘ䛜 50䠈᧠ᢾయᅇ㌿㏿ᗘ䛜 565.5 rpm䛷䛒䜛䚹ᅗ୰䛷䛿ᵓᡂ⢏Ꮚ䛾㏿ᗘ䛻ᛂ䛨䛶Ⰽศ䛡䛧䛶䛚䜚䠈㏿ᗘ䛜኱䛝䛔⛬⃰䛔Ⰽ䠄㯮Ⰽ䠅䛷⾲♧䛧䛶䛔䜛䚹㻌 ᅗ䜘䜚䠈᧠ᢾయ䛾ᅇ㌿䛻క䛔䠈ヨᩱ䛜䝭䝹඲య䛻᧠ᢾ䛥䜜䛶䛔䜛ᵝᏊ䛜☜ㄆ䛷䛝䜛䚹䛭䛾䛯䜑䠈䛹䛱䜙䛾䝰䝕䝹䛻䛚䛔䛶䜒᧠ᢾయ䛸᥋ゐ䛧䛯┤ᚋ䛾⢏Ꮚ䛾㏿ᗘ䛜኱䛝䛟䠈䝭䝹ୖ㒊䛷᧠ᢾ䛥䜜䛶䛔䜛⢏Ꮚ䛾㏿ᗘ䛜ẚ㍑ⓗᑠ䛥䛔䛣䛸䛜䜟䛛䜛䚹䛧䛛䛧䛺䛜䜙䠈⌫ᙧ⢏Ꮚ䝰䝕䝹䛸⢏Ꮚ䝧䞊䝇䝰䝕䝹䛷䛿䠈᧠ᢾ䛾䛥䜜᪉䛜␗䛺䜛䛣䛸䜒☜ㄆ䛥䜜䛯䚹⌫ᙧ⢏Ꮚ䝰䝕䝹䛿ヨᩱ䛜᏶඲䛺⌫䛷䛒䜛䛯䜑䠈䝗䝷䝮ቨ㠃䛻ᙇ䜚௜䛟䜘䛖䛺㌶㐨䛸䛺䜚᫆䛔䚹୍᪉䠈⢏Ꮚ䝧䞊䝇䝰䝕䝹䛷䛿ヨᩱ䛜ᯈ≧䛷䛒䜛䛯䜑䠈䝗䝷䝮ቨ㠃䛻ᙇ䜚௜䛟䜘䛖䛺㌶㐨䛿㉳䛣䜚䛻䛟䛟䠈䜎䛯ᯈ≧⢏Ꮚྠኈ䛾⾪✺䛻䜘䛳䛶୙つ๎䛺ᣲື䜢⏕䛨䜔䛩䛔䚹t = 0.00 s

t = 0.25 s

t = 0.50 s

t = 0.75 s

t = 0.00 s

t = 0.25 s

t = 0.50 s

t = 0.75 s

ᅗ 2 ࣑ࣝෆࡢヨᩱᣲື㸦ୖẁ㸸⌫ᙧ⢏Ꮚࣔࢹࣝ㸪ୗẁ㸸⢏Ꮚ࣮࣋ࢫࣔࢹࣝ㸧4.㻌 ⤖ㄽ㻌 ᮏ◊✲䛷䛿䠈⢏Ꮚ䝧䞊䝇䝰䝕䝹䜢⏝䛔䛶ᑐ㇟≀䛾ᙧ≧䜢ヲ⣽䛻෌⌧䛧䠈䝭䝹ෆ䛾⢏Ꮚᣲື䜢ヲ⣽䛻ᢕᥱ䛩䜛䛣䛸䜢┠ⓗ䛸䛧䛶䠈⌫ᙧ⢏Ꮚ䛚䜘䜃ᯈ≧⢏Ꮚ䛾䝭䝹ෆ䛾ᣲື䜢ゎᯒ䠈ẚ㍑䛩䜛䛣䛸䛻䜘䛳䛶⢏Ꮚ䝧䞊䝇䝰䝕䝹䛾᭷⏝ᛶ䜢ㄪᰝ䛧䛯䚹
2 䛴䛾䝰䝕䝹䛷ゎᯒ䛧䛯ᣲື䜢ẚ㍑䛧䛯䛸䛣䜝䠈⢏Ꮚ䝧䞊䝇䝰䝕䝹䛻䜘䜛ᯈ≧⢏Ꮚ䛿⌫ᙧ⢏Ꮚ䛸䛿ᣲື䛜␗䛺䜚䠈ᯈ≧⢏Ꮚྠኈ䛾⾪✺䛻䜘䛳䛶୙つ๎䛺ᣲື䜢⏕䛨䜔䛩䛔䛣䛸䛜☜ㄆ䛥䜜䛯䚹䛧䛯䛜䛳䛶䠈䛸䛟䛻ᯈ≧⢏Ꮚ䛾䜘䛖䛺㠀⌫ᙧ⢏Ꮚ䛾ᣲືゎᯒ䛷䛿䠈⢏Ꮚ䝧䞊䝇䝰䝕䝹䜢⏝䛔䛯ゎᯒ䛜᭷⏝䛷䛒䜛䛣䛸䛜♧၀䛥䜜䛯䚹
5.㻌 ཧ⪃ᩥ⊩[1] P. A. Cundall,O. D. L. Strack, “A discrete numerical model for granular assemblies,” Geotechnique, 29, pp. 47–65, 1979.
[2] M. Tanaka, M. Sakai, S. Koshizuka, “Particle-based rigid body simulation and coupling with fluid simulation”,
Transactions of JSCES, No.20070007.
䠄ඹྠ◊✲ศ㔝䠖䝇䝬䞊䝖䝁䞊䝕䜱䞁䜾䝥䝻䝉䝇Ꮫศ㔝䠅− 211 −

㟁Ẽ໬Ꮫᯒฟἲ࡟ࡼࡿ㓟໬ள㖄ⷧ⭷ࡢᵓ㐀ไᚚྡྂᒇᕤᴗ኱Ꮫ ඛ㐍ࢭ࣑ࣛࢵࢡࢫ◊✲ࢭࣥࢱ࣮⸨ ṇ╩ ┠ⓗ
㟁Ẽ໬Ꮫᯒฟἲ (&' ࡜ࡣ㟁Ẽ໬Ꮫ཯ᛂࢆ฼⏝ࡋࡓࢭ࣑ࣛࢵࢡࢫྜᡂᡭἲ࡛࠶ࡾࠊపࢥࢫࢺ࣭┬࢚ࢿࣝࢠ࣮࡞᮲௳࡛ࠊᑟ㟁ᛶᇶᯈୖ࡟㔠ᒓ㓟໬≀ⷧ⭷ࡀస〇࡛ࡁࡿࠋ≉࡟ࠊ㓟໬ள㖄 =Q2 ࡢ (&' ࡟ࡘ࠸࡚ࡣࠊள㖄࢖࢜ࣥ࡜㓟⣲๓㥑యࢆྵࢇࡔỈ⁐ᾮ୰࡛㝜ᴟ㑏ඖࢆ⾜࠺ࡇ࡜࡛ࠊ㟁ᴟୖ࡟ =Q2 ⷧ⭷ࢆᙧᡂࡍࡿࡇ࡜ࡀ࡛ࡁ
ࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋ㏆ᖺࠊ%DL;XH ࡽࡣ PRO/ ௨ୗࡢ◪㓟ள㖄Ỉ⁐ᾮ୰ࡢ (&' ࡟ࡼࡗ࡚ ,72 ᇶᯈୖ࡟ =Q2 ࢼࣀࣟࢵࢻ࢔ࣞ࢖ =Q215$ ࡀᚓࡽࢀࡿ࡜ሗ࿌ࡋࡓ>@ࠋ=Q215$ ࡣኴ㝧㟁ụࡸ࢞ࢫࢭࣥࢧࠊ/L ࢖࢜ࣥ㟁ụ㈇ᴟࠊぶỈ࣭᧕Ỉࢥ࣮ࢸ࢕ࣥࢢ࡞࡝࡬ࡢᖜᗈ࠸ᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࡀࠊᯒฟࡉࡏࡿᇶᯈࡀࡑࡢ㓄ิ࡬୚࠼ࡿᙳ㡪ࡢㄪᰝࡣ୙༑ศ࡛࠶ࡿࠋࡑࡇ࡛ࠊ␗࡞ࡿ⾲㠃≧ែࢆᣢࡗࡓ࠸ࡃࡘ࠿ࡢᇶᯈୖ࡛ =Q215$ ࡢ (&'ࢆ⾜࠸ࠊࡑࡢ㓄ิ࡟୚࠼ࡿᇶᯈࡢᙳ㡪ࢆㄪᰝࡋࡓࠋ ᐇ㦂᪉ἲ
0.01mol/L ࡢ Zn(NO3)2 Ỉ⁐ᾮࢆ࢛࣮࢘ࢱ
࣮ࣂࢫ࡛ 70Υ࡟ຍ⇕ࡋࠊ୕㟁ᴟࢭࣝࢆ⏝࠸ࡓᐃ㟁఩᪉ᘧ࡛㝜ᴟ㑏ඖࢆ⾜ࡗࡓࠋస⏝ᴟ࡟ࡣ㟁ゎ◊☻ࡋࡓཌࡉࡢ␗࡞ࡿ Cu ᇶᯈ(0.5mm ࡜5ȣm)࡜࢔ࢭࢺࣥ୰࡛㉸㡢ἼὙίࢆ⾜ࡗࡓ
ITO ᇶᯈࠊᑐᴟ࡟ࡣ Pt ᇶᯈࠊཧ↷ᴟ࡟ࡣ KCl
㣬࿴ Ag/AgCl 㟁ᴟ(HS205C,TOADKK)ࢆ⏝࠸ࡓࠋ
ZnO NRA ࢆᚓࡿࡓࡵ࡟ࠊྠ➼ࡢ㟁ὶᐦᗘ㡿ᇦ࡟࡞ࡿࡼ࠺ࠊCu ᇶᯈࢆ⏝࠸ࡓሙྜࡣ
-0.3VࠊITO ᇶᯈࢆ⏝࠸ࡓሙྜࡣ-0.9V ࡢ㟁఩࡛ 30 ศ㛫㏻㟁ࡋࠊZnO NRA ࢆᚓࡓࠋࡑࡢᚋ
ỈὙ࣭⮬↛஝⇱ࡋࡓࠋ
Fig.1 㟁Ẽ໬Ꮫᯒฟἲ࡟ࡼࡿ ZnO ࢼࣀࣟࢵࢻ࢔ࣞ࢖
ECD ᫬ࡢ㟁ὶᐦᗘ-᫬㛫᭤⥺ࡣ㟁Ẽ໬Ꮫ⿦⨨(ZnO NRA)⏕ᡂ(HZ5000,Hokuto Denko)࡟ࡼࡗ࡚ ᐃࡋࠊZnO
NRA ࡢ⤖ᬗᵓ㐀ཬࡧ⾲㠃ᙧ≧ࡣ⢊ᮎ X ⥺ᅇᢡ⿦⨨(XRD, Ultima IV,Rigaku)࡜㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾(SEM,JEM-7000F,JEOL)࡟ࡼࡾホ౯ࡋࡓࠋ ⤖ᯝ࠾ࡼࡧ⪃ᐹ
)LJ ࡟ࠊ௒ᅇ౑⏝ࡍࡿ㟁ゎ◊☻ࡋࡓ㖡ᯈࠊ㟁ゎ◊☻ࡋࡓ㖡⟩ࠊ)72 ᇶᯈࡢ 6(0 ⏬ീࢆ♧ࡍࠋᅗࡼࡾࠊ㖡ᯈࡣ⤖ᬗ⢏⏺ࡀࡣࡗࡁࡾࡋ࡚࠾ࡾࠊ⤖ᬗᛶࡢⰋ࠸ᇶᯈࡔ࡜ࢃ࠿ࡿࠋ㖡⟩ࡣ⤖ᬗ⢏⏺ࡀ᫂☜࡛࡞ࡃࠊ⤖ᬗᛶࡢᝏ࠸ᇶᯈࡔ࡜ࢃ࠿ࡿࠋ)72 ᇶᯈࡣพฝࡀᏑᅾࡍࡿ⾲㠃࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿࠋ








Fig.2 ௒ᅇ౑⏝ࡍࡿ㟁ゎ◊☻ࡋࡓ㖡ᯈࠊ㟁ゎ◊☻ࡋࡓ㖡⟩ࠊFTO ᇶᯈࡢ SEM ⏬ീ− 212 −)LJ ࡟␗࡞ࡿᇶᯈୖ࡟ =Q215$ ࢆస〇ࡋࡓ㝿ࡢ㟁ὶᐦᗘ᫬㛫᭤⥺ࢆ♧ࡍࠋᅗࡼࡾࠊ)72 ࡜㖡ᯈ࣭㖡⟩ࡣᑟ㟁⋡ࡀ␗࡞ࡿࡓࡵࠊྠࡌ⛬ᗘࡢ㟁ὶᐦᗘࢆᚓࡿ࡟ࡣࠊ
␗࡞ࡿ㟁఩࡛ (&' ࢆ⾜࠺ᚲせࡀ࠶ࡿࡇ࡜ࡀࢃ࠿ࡿࠋ㟁ὶᐦᗘࡸ㟁Ẽ㔞ࡀ␗࡞ࡿࡶࡢࡢࠊ௒ᅇࡣࣟࢵࢻࡢ㓄ྥ࡟ὀ┠ࡍࡿࡓࡵࠊࡇࢀࡽ࡟㉳ᅉࡍࡿࣟࢵࢻࡢ኱ࡁࡉࡢ
ኚ໬ࡣ⪃៖ࡋ࡞࠸ࠋ
)LJ ࡟␗࡞ࡿᇶᯈୖ࡟సᡂࡋࡓ =Q215$ ࡢ ;5'ᐃ⤖ᯝࢆ♧ࡍࠋᅗࡼࡾࠊ㖡ᯈୖ࡛ࡣ  ࡢࡳࠊ㖡⟩ୖ࡛ࡣ  ࡜  ࠊ)72 ୖ࡛ࡣࡑࢀ௨እ࡟ࡶ =Q2 ࡢከࡃࡢ㠃࡟㉳ᅉࡍࡿࣆ࣮ࢡࡀ⌧ࢀࡿࡇ࡜ࡀࢃ࠿ࡿࠋ
Fig.3 㟁ὶᐦᗘ-᫬㛫᭤⥺(␗࡞ࡿᇶᯈ࣭㟁఩))LJ ࡟␗࡞ࡿᇶᯈୖ࡟ (&' ࡟ࡼࡗ࡚స〇ࡋࡓ =Q2
15$ ࡢ 6(0 ⏬ീࢆ♧ࡍࠋᅗࡼࡾࠊ=Q2 15$ ࡣᇶᯈ࡟ࡼ
ࡗ࡚␗࡞ࡿ㓄ิࢆ♧ࡍࡇ࡜ࡀࢃ࠿ࡿࠋཌ࠸㖡ᯈୖ࡛ࡣࠊ
⤖ᬗ⢏⏺ࢆቃ࡟ࡋ࡚㓄ิࡀ␗࡞ࡾࠊ⤖ᬗ㠃ࡢᙳ㡪ࡀぢࡽࢀࡓࡀࠊ⤖ᬗᛶࡀⰋ࠸ࡓࡵṤ࡝ࡢࣟࢵࢻࡣᆶ┤࡟㓄ิࡋࡓࠋⷧ࠸㖡⟩ୖ࡛ࡣ⤖ᬗ⢏⏺ࡸ⤖ᬗ㠃ࡢᙳ㡪ࡣぢࡽࢀࡎࠊᇶᯈࡢ⤖ᬗᛶࡀᝏ࠸ࡓࡵ࡟஘㞧࡟ഴ࠸ࡓ㓄ิࢆ♧ࡋࡓࠋ)72 ᇶᯈୖ࡛ࡣᇶᯈࡢพฝࡀཎᅉ࡜࡞ࡾࠊ࡯
ࡰࣛࣥࢲ࣒࡞㓄ิࢆ♧ࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ
⤖ᯝࡼࡾࠊ=Q 12  Ỉ⁐ᾮ୰࡟࠾ࡅࡿ (&' ࡟ࡼࡾ &Xᇶᯈཬࡧ ,72 ᇶᯈ࡟ =Q215$ ࡀᚓࡽࢀࡓࠋ(&' ᫬ࡢ㟁ὶᐦᗘ᫬㛫᭤⥺࠿ࡽࠊ␗࡞ࡿᇶᯈ࡛ࡶࠊ࡯ࡰྠᵝࡢ㟁ὶᐦᗘ㡿ᇦ࡟࠾࠸࡚ =Q215$ ࡀᚓࡽࢀࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
;5' ࡢ⤖ᯝ࡛ࡣࠊ=Q215$ ࡣཌ࠸ &X ᇶᯈୖ࡛᭱ࡶ 
Fig.4 ZnO NRA ࡢ XRD ᐃ⤖ᯝ㓄ྥࡋࡓࠋ6(0 ࡢ⤖ᯝ࡛ࡣࠊཌ࠸ &X ᇶᯈࢆ⏝࠸ࡓሙྜ࡟ࡣ⤖ᬗ㠃࡟ࡼࡗ࡚ࡣഴ࠸ࡓ㓄ิࠊⷧ࠸ &X ᇶᯈࢆ⏝࠸ SEM 㖡ᯈ㖡⟩ࡓሙྜࡣ୙つ๎࡟஘ࢀࡓ㓄ิࠊ,72 ᇶᯈࢆ⏝࠸ࡓሙྜࡣ
᭱ࡶࣛࣥࢲ࣒࡞㓄ิࡀほᐹࡉࢀࡓࠋ&X ᇶᯈୖ࡛㓄ิࡀ
100nm
100nm
஘ࢀࡓཎᅉࡣࡑࡢᇶᯈ⾲㠃ࡢ⤖ᬗᛶ࡟㉳ᅉࡍࡿࡶࡢ࡛
࠶ࡾࠊ,72 ᇶᯈୖࡢ㓄ิࡀ஘ࢀࡓ୺࡞ཎᅉࡣࡑࡢ⾲㠃ࡢ1ʅm⢒ࡉ࡟ࡼࡿࡶࡢ࡜⪃࠼ࡽࢀࡿࠋ
1ʅm

ITO
 ⤖ㄽ
ZnO䝘䝜䝻䝑䝗䛾㓄ิ≧ἣከ⤖ᬗ &X ᇶᯈࡸ ,72 ᇶᯈୖ࡟ =Q215$ ࡢస〇࡟ᡂຌࡋ
100nm 㖡ᯈ䠖䜋䜌ᇶᯈ䛻ᆶ┤䛻㓄ิ䛧䛯䛜䚸ᇶᯈ⤖ᬗ㠃䛻䜘䛳䛶䛿ഴ䛟䚹ࡓࠋ⾲㠃ࡀᖹ⁥࡞ᇶᯈୖ࡟࠾࠸࡚ࠊࣟࢵࢻࡢከࡃࡣᇶ
㖡⟩䠖䛒䜛⛬ᗘ䛿ᇶᯈ䛻ᑐ䛧䛶ᆶ┤䛰ᯈ࡟ᆶ┤࡟㓄ิࡋࡼ࠺࡜ࡍࡿࡀࠊከ⤖ᬗᇶᯈ࡬ࡢ┤᥋䛜䚸ὶ䜜䛯䜘䛖䛺㓄ิ䚹1ʅm(&' ࡟࠾࠸࡚ࡣᇶᯈ⾲㠃ࡢ⤖ᬗ㠃ࡢᙳ㡪ࡀ኱ࡁࡃࠊ୍ᵝ
ITO:䜋䛸䜣䛹䛜䝷䞁䝎䝮䛺㓄ิ࡟ᥞࡗࡓࢼࣀࣟࢵࢻ㓄ิࢆᚓࡿࡇ࡜ࡣ㞴ࡋ࠸࡜ᛮࢃࢀ
Fig.5 ZnO NRA ࡢ SEM ⏬ീࡿࠋ  ཧ⪃ᩥ⊩>@%DL;XH ࡽ$SSOLHG6XUIDFH6FLHQFH  ̽
㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 213 −

ᡂᙧయࡢ୙ᆒ㉁ᵓ㐀ᙧᡂ࡟㛵ࡍࡿ◊✲ ᮾிᕤᴗ኱Ꮫ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉ᮦᩱᕤᏛᑓᨷ                                  Ᏻ⏣ බ୍                          ⢊యࢆᅽ⦰ࡋ࡚ᡂᙧయࢆసࡿ㐣⛬࡛㸪㢛⢏ࡢὶື㸪ᙎᛶኚᙧ㸪ᔂቯ㸪㝆అ㸪࠶ࡿ࠸ࡣᚤどⓗ࡟ぢࡿ࡜ಶࠎࡢ  ḟ⢏Ꮚࡢ⛣ືࡸ㓄఩ᩘࡢኚ໬࡞࡝㸪ᵝࠎ࡞ᵓ㐀ᙧᡂࡀ㉳ࡇࡗ࡚࠸ࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ࡇࢀࡽࡢ㐣⛬ࢆ⤫୍ⓗ࡟ᢅ࠺ࣔࢹࣝࡸ⌮ㄽࡣ㸪ࡲࡔ㸪᏶඲࡟ᵓ⠏ࡉࢀ࡚࠸ࡿ࡜ࡣゝ࠸ࡀࡓ࠸㸬ࡑࡇ࡛㸪㐃⥆యຊᏛ࡟ᇶ࡙࠸࡚㸪ᡂᙧయࡢᵓ㐀ᙧᡂ࡜ࡑࡢ
ኚ໬ࢆ୍⯡໬ࡍࡿࡓࡵࡢᇶ♏ⓗ⪃ᐹࢆ⾜࠺ࡇ࡜ࢆ㸪ᮏ◊✲ࡢ┠ⓗ࡜ࡍࡿ㸬᫖ᖺᗘࡣ㸪ከ㔜⌫Ẇࣔࢹࣝࢆ⏝࠸࡚⧞ࡾ㏉ࡋ㟼Ỉᅽຍᅽ࡟࠾ࡅࡿࢭ࣑ࣛࢵࢡࢫᡂᙧయෆࡢᆒ㉁໬࡟㛵ࡍࡿᙎᛶゎᯒ࡟ࡘ࠸᳨࡚ウࡋࡓ㸬ࡑࡇ࡛㸪ᮏᖺᗘࡣ㸪㟼Ỉᅽᡂᙧ୰ࡢ㢛⢏ࡢᔂቯ࠶ࡿ࠸ࡣ㝆అࡢᅽຊ࡜㸬ࡑࡢⓎ⏕఩⨨࡜ࡢ⤖ྜ☜⋡ᐦᗘ㛵ᩘࢆ⏝࠸࡚㸪㢛⢏ࡢᔂቯ࠶ࡿ࠸ࡣ㝆అ๭ྜࢆᐃᘧ
໬ࡍࡿࡇ࡜ࢆ᳨ウࡋࡓ㸬㸯㸬ᡂᙧయෆࡢ㢛⢏ࡢᔂቯࡸኚᙧ࡟㛵ࡍࡿᐇ㝿ࡢ≧ἣ

1.5 )LJ ࡟㸪⏣୰  ࡟ࡼࡗ࡚ ᐃࡉࢀࡓ࢔࣑ࣝࢼ༢୍㢛⢏ࡢᅽ⦰ᙉᗘࡢ࣡࢖ࣈࣝࣉࣟࢵࢺࢆ♧ࡍ㸬‫ۍ‬㸪‫ڧ‬㸪‫ࡣڹ‬㸪㢛⢏ࢆ

1సࡿ᫬ࡢᡂᙧຓ๣ࡢ✀㢮ࡸ㔞ࡢ㐪࠸ࢆ⾲ࡋ࡚࠸ࡿ㸬ࡇࢀࡼࡾ㸪0.5࠿ࡿ㸬ᐇ㝿㸪Ᏻ⏣ࡽ㸰㸧ࡀ༢ศᩓࢩࣜ࢝⢏Ꮚ࡛㢛⢏ࢆసࡗࡓሙྜ࡟ࡣ㸪ᡂᙧయ࡟୍ᐃࡢᅽຊࡀ㈇Ⲵࡉࢀࡿ࡜㸪㢛⢏ࡀᔂቯࡋ࡚㸪ᆒ୍࡟ᅽᐦࡉࢀࡓ࣐ࢺࣜࢵࢡࢫ࡟ኚࢃࡿࡇ࡜ࡀሗ࿌ࡉ
ࢀ࡚࠸ࡿ㸬ࡑࡢ୍᪉࡛㸪)LJ ࡟♧ࡋࡓ࢔࣑ࣝࢼ㢛⢏ࡢሙྜࡣ㸪㢛⢏ࡑࡢࡶࡢࡀ㝆అࡋ࡚㸪㢛⢏㛫ẼᏍࢆ  ḟ⢏Ꮚࡀᇙࡵ࡚࠸ࡃࡀ㸪㢛⢏ࡑࡢࡶࡢࡣṧࡗ࡚࠸ࡿ≧ែ࡟࡞ࡗ࡚࠸ࡿ㸬ࡇlnln(1/(1-Fi)㢛⢏ࡢᅽ⦰ᙉᗘࡣ㸪࡯ࡰ࣡࢖ࣈࣝศᕸ࡛㏆ఝ࡛ࡁࡿࡇ࡜ࡀࢃ

-0.5

DS-90M
5

6

7

-1
-1.5
-2
-2.5

ࡑࡢྛࠎ࡟ࡘ࠸࡚ࣔࢹࣝࢆᵓ⠏ࡍࡿࡇ࡜ࡶ࡛ࡁࡿࡀ㸪⪃࠼࡚

-3ᅽຊࡀ㐩ࡍࡿ࡜㉳ࡇࡿ⮫⏺⌧㇟࡞ࡢ࡛㸪౛࠼ࡤ㸪ᔂቯ⌧㇟࡟

DS-31

0

ࡢࡼ࠺࡟㸪㢛⢏ࡢᛶ≧࡟ࡼࡗ࡚㸪ᡂᙧయෆࡢᣲືࡀ␗࡞ࡾ㸪ࡳࡿ࡜㸪ᔂቯ㸦◚ቯ㸧ࡶ㸪㝆అ ረᛶኚᙧ ࡶ㸪࠶ࡿ⮫⏺್࡟

DS-6

lnı [kPa]

ࡘ࠸࡚ᐃᘧ໬ࡋ࡚࠾ࡅࡤ㸪㝆అ⌧㇟ࡢሙྜ࡟ࡣ㸪◚ቯᙉᗘࢆ㝆Fig.1 Weibull Plot of Compressive Strength ofఅᛂຊ࡟ㄞࡳ᭰࠼ࡿࡇ࡜ࡀྍ⬟࡜࡞ࡿ㸬

Three Types of Alumina Granules1).

 ࡶ࠺୍ࡘ⪃៖ࡋ࡞ࡅࢀࡤ࡞ࡽ࡞࠸ࡇ࡜ࡣ㸪)LJ ࡟♧ࡍࡼ࠺࡟㸪 㢛⢏࡟ࡣ㸪ࢹ࢕ࣥࣉࣝ࡜࠸࠺ࡃࡰࡳࢆᣢࡘࡶࡢࡀ࠶ࡿ㸬㏻
ᖖ㸪༢୍㢛⢏ࡢᅽ⦰ᙉᗘࡢィ⟬࡟ࡣ㸪ࡇࡢᙳ㡪ࡀ⪃៖ࡉࢀ࡚࠸࡞࠸ࡢ࡛㸪)LJ ࡢ⤖ᯝࢆ⪃ᐹࡍࡿ࡜ࡁ࡟ࡶ㸪ὀពࡀᚲせ࡛࠶ࡿࡀ㸪ᐇ㝿ࡢᡂᙧయෆ࡛㸪㢛⢏ࡀᔂቯ࠶ࡿ࠸ࡣ㝆అࡍࡿሙྜ㸪ࡇࡢࢹ࢕ࣥࣉࣝࡢᙳ㡪࡛㸪ࡑࡢ⮫⏺ᅽຊࡀࡤࡽࡘࡃࡇ࡜ࡀ⌮ㄽⓗ࡟ண ࡉࢀࡿ㸬 㢛⢏ࡑࡢࡶࡢࡢᮏ᮶ࡢᙉᗘ㸪ࡍ࡞ࢃࡕ㸪 ḟ⢏Ꮚ㛫ࡢ⤖ྜຊ࡟㛵㐃ࡍࡿ㆟ㄽ࡛࠶ࢀࡤ㸪ࡇࡢࢹ࢕ࣥࣉࣝࡢᙳ㡪ࢆ⪃៖ࡋ࡚㸪⤖ྜຊࡢᣦᶆࢆồࡵࡿࡇ࡜ࡀᚲせ࡛࠶ࡿࡀ㸪ᐇ㝿ࡢᡂᙧ࡟࠾࠸࡚ࡣ㸪ࢹ࢕ࣥࣉࣝࡀᏑᅾࡍࡿୖ࡛ࡢᡂᙧ࡟࡞ࡗ࡚࠸ࡿࡢ࡛㸪ࢹ࢕ࣥࣉࣝࡀ
Ꮡᅾࡍࡿ≧ែ࡛ ᐃࡋࡓぢ࠿ࡅࡢᅽ⦰ᙉᗘ࡟ࡶ㸪ᐇ⏝ୖࡢព⩏ࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ࡑࢀᨾ࡟㸪㢛⢏ࡀఱࡽ࠿ࡢᙉᗘศᕸࢆ

− 214 −

Fig.2 Dimple Structure of Granules1).

ᣢࡗ࡚࠸ࡿࡇ࡜ࢆ๓ᥦ࡜ࡋࡓᡂᙧయෆࡢᅽᐦ⌧㇟ࢆᐃᘧ໬ࡍࡿࡇ࡜ࡣ㸪ࡶ࠺୍ࡘࡢ㔜せ࡞どⅬ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬㸱㸬ゎᯒࣔࢹࣝ  ࡇࡇ࡛ࡣ㸪㢛⢏࠿ࡽ࡞ࡿ⌫≧ணഛᡂᙧయ㸦༙ᚄ 5㸧ࢆ㟼Ỉᅽᡂᙧࡋࡓሙྜࢆ⪃࠼ࡿ㸬ணഛᡂᙧయࡢ୰ᚰᑐ⛠ᛶ㸦ゅᗘ ࡟౫Ꮡࡋ࡞࠸ࡇ࡜㸧࠿ࡽ┦ᑐᐦᗘ G U ࠾ࡼࡧ┦ᑐᐦᗘ࡟౫Ꮡࡍࡿࣖࣥࢢ⋡ ( U ࡣ༙ᚄ᪉ྥࡢᗙᶆ U ࡔࡅࡢ㛵ᩘ࡛࠶ࡿ࡜ࡋ㸪ึᮇ᮲௳࡜ࡋ࡚ᐇ㦂ⓗ࡟୚࠼ࡽࢀ࡚࠸ࡿࡶࡢ࡜ࡍࡿ㸬ࡇࡢணഛᡂᙧయ࡟እ㒊࠿ࡽ㟼Ỉᅽ 3 ࢆ㈇Ⲵࡋࡓ᫬ࡢᡂᙧయෆ
ࡢᛂຊศᕸࡣ㸪ᐇ㝿࡟ࡣ㸪3 ㍈ᛂຊୗ࡛ࡢᅽᐦ࡜࡞ࡿࡀ㸪ࡇࡇ࡛ࡣ㸪㆟ㄽࡢぢ㏻ࡋࢆࡼࡃࡍࡿࡓࡵ㸪༙ᚄ᪉ྥᛂຊ r (r)ࡢࡳࢆ⪃៖ࡍࡿࡇ࡜࡟ࡍࡿ㸬ࡇࡢᛂຊศᕸ

r(r) ࡣ㸪እ㒊࠿ࡽ㈇Ⲵࡍࡿ㟼Ỉᅽ P ࢆ⏝࠸࡚㸪ḟᘧࡢࡼ࠺࡟つ᱁໬ࡋ࡚⾲ࡍࡇ࡜ࡀ࡛ࡁࡿ㸬
r

(r)

P (r)

(1)


◚ቯ఩⨨ࡢ☜⋡ㄽࢆ⏝࠸࡚㸪㢛⢏ࡢᔂቯᅽຊ࡜ᔂቯ఩⨨࡟㛵ࡍࡿ⤖ྜ☜⋡ᐦᗘ㛵ᩘ h(P,r) ࢆồࡵࡿ࡜㸪ḟᘧࡀᚓࡽࢀࡿ㸬mm

ª § V · § P · º w 1 § P (r) ·h(P, r)exp « ¨ e ¸ ¨ ¸ »¨«¬ © V0 ¹ © P0 ¹ »¼ wP V0 ©

P0

¹¸

(2)

ࡇࡇ࡛㸪m, P0 ࡣ㸪㢛⢏ᙉᗘࢆ࣡࢖ࣈࣝศᕸ࡛⾲ࡋࡓ᫬ࡢᙧ≧ẕᩘ㸪ᑻᗘẕᩘ㸪Ve ࡣ᭷ຠయ✚㸪P ࡣᇶ‽ᛂຊ(㟼Ỉᅽຊ)㸪
Ȟ(r)ࡣつ᱁໬ࡉࢀࡓᛂຊศᕸ㸪V0 ࡣ༢఩య✚࡛࠶ࡿ㸬᭷ຠయ✚ࡣ㸪ḟᘧ࡛⾲ࡉࢀࡿ㸬

R
Ve

r2

4

m

(r)dr

(3)

0

ࡇࡢ h(P,r)ࡢ࿘㎶ศᕸࢆィ⟬ࡍࡿࡇ࡜࡟ࡼࡾ㸪ᔂቯᅽຊ࠶ࡿ࠸ࡣᔂቯ఩⨨࡟㛵ࡍࡿ㢛⢏ࡢᔂቯ๭ྜࢆồࡵࡿࡇ࡜ࡀ࡛ࡁࡿ㸬 ࡞࠾㸪㢛⢏ࡀ㝆అࡍࡿሙྜ࡟ࡣ㸪  ᘧࢆ㝆అᅽຊ࡜㝆అ఩⨨ࡢ⤖ྜ☜⋡ᐦᗘ㛵ᩘ࡜ㄞࡳ᭰࠼ࢀࡤࡼ࠸ࡀ㸪๓㏙ࡢࡼ࠺࡟㸪㝆అᅽຊࡀࢹ࢕ࣥࣉࣝࡢᙳ㡪࡛ぢ࠿ࡅୖࡤࡽࡘࡃࡢ࡛㸪㝆అᛂຊศᕸࡶྠᵝ࡟࣡࢖ࣈࣝศᕸ࡛㏆ఝࡍࡿࡇ࡜࡟ࡍࡿ㸬 ௒ᚋ㸪  ᘧ࡟ྵࡲࢀ࡚࠸ࡿ㢛⢏ࡢᔂቯᙉᗘ࡟㛵ࡍࡿࣃ࣓࣮ࣛࢱࢆ ᐃࡍࡿ࡜ඹ࡟㸪୍ᐃࡢ᮲௳࡛స〇ࡋࡓᡂᙧయෆࡢ⤌⧊ほᐹ࡟ࡼࡾ㸪ᐇ㝿ࡢ㢛⢏ࡢᔂቯ๭ྜࢆ ᐃࡋ࡚㸪  ᘧ࡟ࡼࡿ᥎ᐃ࡜୍⮴ࡍࡿ࠿࡝࠺࠿࡟ࡘ࠸᳨࡚ウࡋࡓ࠸࡜⪃࠼࡚࠸ࡿ㸬㸲㸬⤖ㄽ
ᡂᙧయෆࡢ㢛⢏ࡢᔂቯ࠶ࡿ࠸ࡣ㝆అࢆ⮫⏺⌧㇟࡜ࡋ࡚ᤊ࠼㸪ࡲࡓ㸪㢛⢏ࡢࢹ࢕ࣥࣉࣝࡀ㸪ࡑࡢ⮫⏺್࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚⪃ᐹࡋࡓ㸬ࡑࡢ⤖ᯝ࡟ᇶ࡙࠸࡚㸪㟼Ỉᅽୗࡢᡂᙧయෆࡢ㢛⢏ࡢᔂቯ㸦࠶ࡿ࠸ࡣ㝆అ㸧ᅽຊ࡜ᔂቯ㸦࠶ࡿ࠸ࡣ㝆అ㸧఩⨨ࡢ⤖ྜ☜⋡ᐦᗘ㛵ᩘࢆᐃᘧ໬ࡋࡓ㸬㸳㸬ཧ⪃ᩥ⊩⏣୰ㅍ㸪⚾ಙ.<DVXGD7.LWDPXUD<0DWVXRDQG76KLRWD'HQVLILFDWLRQSURFHVVRISRZGHUFRPSDFWLRQE\&\FOLF&,3
3URF0DWHULDOV6FLHQFHDQG7HFKQRORJ\ 06 7 &LQFLQQDWL2+86$SSD  Ᏻ⏣බ୍㸪⏣୰ㅍ㸪ෆ⸨∾⏨͆⧞ࡾ㏉ࡋ㟼Ỉᅽຍᅽ࡟࠾ࡅࡿࢭ࣑ࣛࢵࢡࢫᡂᙧᑐෆࡢᆒ㉁໬㐣⛬࡟㛵ࡍࡿከ㔜⌫Ẇࣔࢹࣝ࡟ࡼࡿᙎᛶゎᯒ͇㸪⢊యᕤᏛ఍ㄅ㸪9RO1R  Ᏻ⏣බ୍㸪⏣୰ ㅍ㸪ෆ⸨∾⏨, “CIP ᡂᙧయ୰ࡢ㢛⢏ᔂቯࡢ☜⋡ㄽ”, ⢊య⢊ᮎ෬㔠༠఍ᖹᡂ 26 ᖺᗘ᫓Ꮨ኱఍ㅮ₇ᴫ
せ㞟, 2014.6/4, ᪩✄⏣㸦ᮾி㸧Ᏻ⏣බ୍͆㧗ಙ㢗ᛶࢭ࣑ࣛࢵࢡࢫࡢࡓࡵࡢ &,3 ᡂᙧయࡢᆒ㉁໬࡟㛵ࡍࡿ㐃⥆యຊᏛ࢔ࣉ࣮ࣟࢳ͇㸪⢊యᕤᏛ఍⢊యᮦᩱタィ◊✲఍ ᖺ➨  ᅇ◊✲఍㸪-XO\ᮾᕤ኱㸦ᮾி㸧6) Ᏻ⏣බ୍㸪⏣୰ ㅍ㸪ෆ⸨∾⏨, “㟼Ỉᅽᡂᙧయ୰ࡢ㢛⢏ᔂቯࡢ☜⋡ㄽ”, ⢊యᕤᏛ఍ ➨50ᅇኟᮇࢩ࣏ࣥࢪ࣒࢘㸪2014
Aug.6-7㸪኱㜰㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢥ࣮ࢸ࢕ࣥࢢࣉࣟࢭࢫᏛศ㔝㸧− 215 −

ග㐀ᙧἲࢆ⏝࠸ࡓࢭ࣑ࣛࢵࢡ୕ḟඖᵓ㐀యࡢస〇࡟㛵ࡍࡿ⥴᮲௳ࡢ᳨ウᅜ❧◊✲㛤Ⓨἲே ⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ  ‫ۑ‬ᇼ⏣ ᖿ๎ࠊ㏆⸨ ┤ᶞ㜰኱᥋ྜ◊ ᱒ཎ ⪽⚽

1㸬⥴ゝ
SiC ࡸ AlN ࡞࡝ࡢ㠀㓟໬≀ࢭ࣑ࣛࢵࢡࢫࡣࠊᵓ㐀ᮦᩱ࡜ࡋ࡚ᗈࡃᛂ⏝ࡉࢀ࡚࠸ࡿࠋSiC
࡜ AlN ࡣࠊ20㹼100mol%AlN ࡢᗈ࠸⤌ᡂ㡿ᇦ࡛ᅛ⁐యࢆᙧᡂࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋࡇ
ࡢࡼ࠺࡟ࠊඹ᭷⤖ྜࡢᙉ࠸㠀㓟໬≀ࢭ࣑ࣛࢵࢡࢫࡀᅛ⁐యࢆᙧᡂࡍࡿ⣔ࡣᑡ࡞ࡃࠊᶵᲔⓗࡸ໬Ꮫⓗ࡞࡝ᵝࠎ࡞≉ᛶࡢྥୖࡀᮇᚅࡉࢀࡿࠋࡑࡇ࡛ࠊSiC-AlN ࢥ࣏ࣥࢪࢵࢺࡢ୕ḟඖᵓ㐀యࡢ㐀ᙧࢆ┠ᣦࡋࠊග㐀ᙧἲ࡛ᚓࡽࢀࡿ SiC-AlN ࢥ࣏ࣥࢪࢵࢺᡂᙧయࡢ↝ᡂ᮲௳ࢆ᳨ウࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ2㸬ᐇ㦂᪉ἲ
ฟⓎཎᩱ࡜ࡋ࡚ᚤ⣽࡞E-SiC㸦࢖ࣅࢹࣥ〇ࠊ⢏ᚄ 0.3Pm㸧࠾ࡼࡧ AlN㸦Dow Chemical 〇ࠊ⢏ᚄ 1.1Pm㸧ࡢྛ⢊ᮎࢆ⏝࠸ࡓࠋSiC:AlN ࡢ⤌ᡂẚࡀࣔࣝẚ 90:10㸦9S1A㸧ࠊ70:30㸦7S3A㸧ࠊ
50:50㸦5S5A㸧࡜࡞ࡿࡼ࠺࡟ SiC ࠾ࡼࡧ AlN ⢊ᮎࢆ⛗㔞ࡋࠊ࢚ࢱࣀ࣮ࣝ୰࡛‵ᘧΰྜࡋࡓࠋ
ࡑࡢᚋࠊ஝⇱ࠊ㏻⠠ࡉࡏࡓΰྜ⢊ᮎࢆ Ar 㞺ᅖẼ୰ࠊ1900㹼2000Υࠊ30minࠊ30MPaࠊ100Υ
/min ࡢ᮲௳࡛ᨺ㟁ࣉࣛࢬ࣐↝⤖ἲ࡟ࡼࡾ↝⤖ࡉࡏࡓࠋホ౯࡟ࡘ࠸࡚ࡣࠊ཰⦰ᣲືㄪᰝࡸᐦ
ᗘᐃࠊ⤖ᬗ┦ྠᐃࢆ⾜ࡗࡓࠋ3㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ
ᅗ 1 ࡟ࠊ2000Υࠊ30min ࡢ↝⤖ᐇ㦂࡟࠾ࡅࡿヨᩱࡢ཰⦰ኚ໬ࢆ♧ࡍࠋ᪼㐣⛬࡟࠾࠸࡚

1500㹼1600Υ࡛཰⦰ࡀ㛤ጞࡋ࡚࠾ࡾࠊAlN 㔞ࡀከࡃ࡞ࡿ࡯࡝ࠊࡑࡢ཰⦰㛤ጞᗘࡣపࡃ࡞ࡿഴྥࡀ☜ㄆࡉࢀࡓࠋࡉࡽ࡟ࠊ5S5A ࡛ࡣࠊ2000Υ฿㐩᫬࡟཰⦰ࡣ࡯ࡰ᏶஢ࡋ࡚࠸ࡿࡢ࡟
ᑐࡋ࡚ࠊSiC 㔞ࡢከ࠸ 9S1A ࡸ 7S3A ࡛ࡣࠊ2000Υ࡛ࡢಖᣢ୰࡛ࡶ཰⦰ࡀ㐍⾜ࡋ࡚࠸ࡓࠋ
ᅗ 2 ࡟ 1900Υ࠾ࡼࡧ 2000Υࠊ30min ࡛ᚓࡽࢀࡓヨᩱࡢ┦ᑐᐦᗘࢆ♧ࡍࠋAlN ࢆῧຍࡏࡎ
࡟ SiC ࡢࡳࢆ 2000Υ࡛↝ᡂࡋࡓሙྜ࡛ࡣ┦ᑐᐦᗘࡣ⣙ 70%࡛࠶ࡗࡓࡀࠊAlN ࢆῧຍࡍࡿࡇ
࡜࡛ᐦᗘࡣ⣙ 99%ࡲ࡛ቑຍࡋࠊ⦓ᐦ໬ࡀ㐍⾜ࡍࡿࡇ࡜ࡀ㢧ⴭ࡟ㄆࡵࡽࢀࡓࠋࡲࡓࠊ1900Υ
࡛ࡣࠊAlN ࡢῧຍ㔞ࡀቑຍࡍࡿ࡟ࡘࢀ࡚ࠊᐦᗘࡀቑຍࡍࡿഴྥࡀぢཷࡅࡽࢀࡓࠋ9S1Aࠊ7S3A
࡛ࡣࠊᐦᗘࡣ⣙ 94%࡛࠶ࡾࠊ5S5A ࡛ࡣࠊ⣙ 98%࡛࠶ࡗࡓࠋࡇࢀࡣࠊSiC ࡼࡾࡶ AlN ࡢ᪉ࡢ↝⤖ᛶࡀⰋ࠸ࡓࡵ࡜⪃࠼ࡽࢀࡿࠋ
ࡲࡓࠊ1900Υ࠾ࡼࡧ 2000Υ࡛ᚓࡽࢀࡓ↝⤖యࡢ XRDᐃࡢ⤖ᯝࠊ1900Υ࡛ࡣE-SiC㸦3C㸧

࡜D-SiC㸦2H㸧ࡢ⏕ᡂࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊAlN ┦ࡢࣆ࣮ࢡࡣྠᐃࡉࢀ࡞࠿ࡗࡓࡢ࡛ࠊ2H
࡟ᅛ⁐ࡋ࡚ࠊSiC-AlN ᅛ⁐యࡀᙧᡂࡉࢀ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋ2000Υ࡛ࡣࠊ࡯ࡰ 2H ┦ࡢࡳ࡛࠶ࡾࠊAlN ┦ࡢࣆ࣮ࢡࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓࡇ࡜࠿ࡽࠊSiC-AlN ᅛ⁐యࡀ୺┦࡜ࡋ࡚ᙧᡂࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ

− 216 −

Holding time /
0
10
20

30

Displacement / mm

1.0
9S1A
7S3A
5S5A

0.8
0.6
0.4
0.2
0

100 150 200
Temperature / o C

Fig.1. Shrinkage behavior of specimens obtained during SPS process.
Holding: 2000 o C-30min.

Relative density / %100
90
1900oC
2000oC

80
70
60

0

10

30

50

Nominal AlN content / mol%Fig.2. Changes in relative density of the sample sintered at 1900o C and2000 o C for 30min, as a function of nominal AlN content.

㸦ඹྠ◊✲ศ㔝㸸ࢼࣀ࣭࣐࢖ࢡࣟᵓ㐀ไᚚࣉࣟࢭࢫᏛศ㔝㸧− 217 −

࣓࢝ࢽ࢝ࣝ࢔ࣟ࢖ࣥࢢἲ࡟ࡼࡾస〇ࡋࡓ⪏⇕࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢᚤ⣽⤌⧊ホ౯ឡ፾኱Ꮫ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉ 㜰ᮏ㎮㢧㸪⥞㇂ᑗኴ
1. ┠ⓗAl ྜ㔠ࡣ㍍㔞࡛࠶ࡿࡓࡵ⮬ື㌴ᮦᩱ࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ㧗 ࡛ࡢ฼⏝ࢆᣑ኱ࡍࡿࡓࡵ࡟ࡣ⪏⇕ᛶࢆྥୖࡉࡏࡿࡇ࡜ࡀᚲせ࡛࠶ࡿࠋ㧗 ᙉᗘࢆᨵၿࡍࡿࡓࡵ࡟ࠊ㓟໬≀ࡸ㔠ᒓ㛫໬ྜ≀ࢆศᩓࡉࡏࡿ᪉ἲࡀࡼࡃ▱ࡽࢀ࡚࠸ࡿࠋᕼᅵ㢮㸦RE㸧࡜ Al ࡜ࡢ㔠ᒓ㛫໬ྜ≀ࡣ㧗⼥Ⅼ࡛࠶ࡾࠊAl-RE 㔠ᒓ㛫໬ྜ≀ࢆศᩓࡉࡏࡿࡇ࡜࡟ࡼࡾ
Al ྜ㔠ࡢ㧗 ᙉᗘࢆᨵၿࡍࡿࡇ࡜ࡀᮇᚅࡉࢀࡿࠋࡋ࠿ࡋ RE ࡢ⣧㔠ᒓࡣ㧗౯࡛࠶ࡿࡓࡵࠊẚ㍑ⓗᏳ౯࡞ RE 㓟໬≀ࢆ฼⏝ࡋ࡚ Al ྜ㔠ࢆస〇ࡍࡿࡇ࡜ࡀᮃࡲࡋ࠸ࠋRE 㓟໬≀࡜ Al ࠿ࡽ Al-RE 㔠ᒓ㛫໬ྜ≀ࢆస〇ࡍࡿ᪉ἲ࡜ࡋ࡚࣓
࢝ࢽ࢝ࣝ࢔ࣟ࢖ࣥࢢ㸦MA㸧᪉ࡀ฼⏝࡛ࡁࡿࠋMA ࡣ㓟໬≀ࡸ㔠ᒓ㛫໬ྜ≀ࢆᚤ⣽ศᩓࡉࡏࡿࡇ࡜ࡀྍ⬟࡞᪉ἲ࡜ࡋ࡚ࡼࡃ▱ࡽࢀ࡚࠸ࡿࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊAl ࡜ RE 㓟໬≀ࢆ MA ࢆ⏝࠸ࡓ⢊ᮎ෬㔠ἲ࡟ࡼࡾྜ㔠໬ࡋࠊAl-RE㔠ᒓ㛫໬ྜ≀࡜ RE 㓟໬≀ࢆศᩓࡉࡏࡓ Al ྜ㔠ࢆస〇ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ ᐇ㦂᪉ἲ
ཎᩱ⢊ᮎ࡜ࡋ࡚ Al ⢊ᮎࠊLa2O3 ⢊ᮎࠊY2O3 ⢊ᮎࢆ౑⏝ࡋࡓࠋࡇࢀࡽࡢ⢊ᮎࢆ Al–5wt%La2O3ࠊAl–5wt%Y2O3 ࡜࡞ࡿࡼ࠺࡟⛗㔞ࡋࡓࠋࡑࢀࡒࢀࢆ La2O3 ῧຍᮦࠊY2O3 ῧຍᮦ࡜࿧ࡪࡇ࡜࡜ࡍࡿࠋࡇࢀࡽࡢ⢊ᮎࢆࢫࢸࣥࣞࢫࡢ MAᐜჾ࡟ࢫࢸࣥࣞࢫ࣮࣎ࣝ࡜࡜ࡶ࡟ධࢀࠊ㐟ᫍᆺ࣮࣑࣎ࣝࣝ࡟࡚ MA ࢆ⾜ࡗࡓࠋබ㌿㏿ᗘ 0rpmࠊ⮬㌿㏿ᗘ 700pm ࡛
100 ᫬㛫 MA ࢆ⾜ࡗࡓࠋMA ⢊ᮎࢆࢫࢸࣥࣞࢫ〇ࡢ㔠ᆺ࡟ධࢀ 400MPa ࡢᅽ⦰ୗ࡛ 550Υ࡟࡚࣍ࢵࢺࣉࣞࢫ࡟ࡼࡿ
↝⤖ࢆ⾜ࡗࡓࠋᚓࡽࢀࡓヨᩱࢆᵓᡂࡍࡿ┦ࡢྠᐃ࠾ࡼࡧ᱁Ꮚᐃᩘኚ໬ࢆ XRD ࡟࡚ホ౯ࡋࡓࠋ⤌⧊ほᐹࢆගᏛ㢧ᚤ㙾ࠊ㉮ᰝᆺ㸦SEM㸧࠾ࡼࡧ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾㸦TEM㸧࡟ࡼࡾ⾜ࡗࡓࠋࣅࢵ࣮࢝ࢫ◳ᗘ ᐃ࡟࡚ᶵᲔⓗᛶ㉁ࢆホ౯ࡋࡓࠋFig. 1 (a)MA ࠾ࡼࡧ(b)࣍ࢵࢺࣉࣞࢫ࡟ࡼࡿヨᩱస〇ἲࡢᴫ␎ᅗ ⤖ᯝ࠾ࡼࡧ⪃ᐹ ࣅࢵ࣮࢝ࢫ◳ᗘ ᐃࡢ⤖ᯝࢆ Fig.1 ࡟♧ࡍࠋLa2O3 ῧຍᮦ࡜ Y2O3 ῧຍᮦࡢ MA ⢊ᮎࡢࣅࢵ࣮࢝ࢫ◳ᗘࡣࠊࡑࢀࡒ
ࢀ 75 ࡜ 88 ࡛࠶ࡾࠊ↝⤖ᚋࡢ◳ᗘࡣࡑࢀࡒࢀ 151 ࡜ 94 ࡛࠶ࡗࡓࠋLa2O3 ῧຍᮦ࡟࠾࠸࡚ࠊ↝⤖࡟ࡼࡿ኱ࡁ࡞◳ᗘቑຍࡀぢࡽࢀࡿࠋࡇࡢཎᅉࢆㄪ࡭ࡿࡓࡵ࡟⤌⧊ࡢホ౯ࢆ⾜ࡗࡓࠋ La2O3 ῧຍᮦ࠾ࡼࡧ Y2O3 ῧຍᮦࡢ XRDᐃࡢ⤖ᯝࢆ Fig.2 ࠾ࡼࡧ 3 ࡟♧ࡍࠋLa2O3 ῧຍᮦ࡟࠾࠸࡚ࡣ MA ๓ᚋ࡟࠾࠸࡚ Al ࡜ La2O3 ࡢᅇᢡࣆ࣮ࢡࡀぢࡽࢀࠊ↝⤖ᚋ࡟ࡣ Al11La3 ࡢࣆ࣮ࢡࡀぢࡽࢀࡿࠋࡑࢀ࡟ᑐࡋ࡚ࠊY2O3 ῧຍᮦ࡛ࡣࠊMA ๓࠿ࡽ↝⤖ᚋ࡟⮳ࡿࡲ࡛ࠊAl ࡜ Y2O3 ࡢࣆ࣮ࢡࡢࡳぢࡽࢀࡿࠋࡇࡢࡇ࡜࠿ࡽࠊAl ࡜ La ࡢ㔠ᒓ㛫໬ྜ≀ࡣ

− 218 −

ᙧᡂࡉࢀࡓࡀࠊAl ࡜ Y ࡢ㔠ᒓ㛫໬ྜ≀ࡣᙧᡂࡉࢀ࡞࠿ࡗࡓࡇ࡜ࡀࢃ࠿ࡿࠋࡇࡢ⌮⏤࡜ࡋ࡚ࠊAl ࡜ La ࡢΰྜ࢚ࣥࢱࣝࣆ࣮ࡢ⤯ᑐ್ࡀ Al ࡜ Y ࡢࡑࢀࡼࡾ኱ࡁ࠸ࡇ࡜࡟ࡼ
ࡾ㔠ᒓ㛫໬ྜ≀ࡀᙧᡂࡋࡸࡍ࠸ࡓࡵ࡛࠶
ࡗࡓ࡜⪃࠼ࡽࢀࡿ[1]ࠋ
 ࡇࢀࡽࡢヨᩱࡢ TEM ほᐹࡢ⤖ᯝࢆ Fig.4
࡟♧ࡍࠋ La2O3 ῧຍᮦ࡟࠾࠸࡚ࠊAl ࡢ⢏ᚄࡣ⣙ 100nmࠊAl11La3 ࡢࢧ࢖ࢬࡣ 50㹼100nm⛬ᗘ࡛࠶ࡿࠋ୍᪉ࠊY2O3 ῧຍᮦ࡟࠾࠸࡚ࠊ
Fig. 1 ࣅࢵ࣮࢝ࢫ◳ᗘAl ࡢ⢏ᚄࡣ⣙ 200nmࠊY2O3 ࡢࢧ࢖ࢬࡣ 50
㹼100nm ⛬ᗘ࡛࠶ࡿࡀࠊY2O3 ࡣ La2O3 ῧຍᮦࡢ Al11La3 ࡼࡾ኱ࡁ࠸ࢧ࢖ࢬࡢࡶࡢࡀከ࠸ࠋ ↝⤖࡟ࡼࡾ Al ࡢ⢏ᚄࡀቑຍࡋࡓࡇ࡜ࡣXRD ࡟࠾ࡅࡿ್༙ᖜࡀῶᑡࡋࡓࡇ࡜࠿ࡽ
ศ࠿ࡿࠋࡋ࠿ࡋࣅࢵ࣮࢝ࢫ◳ᗘࡀ La2O3 ῧຍᮦ࡟࠾࠸࡚ࡣ኱ࡁࡃቑຍࡋࠊY2O3 ῧຍᮦ࡟࠾࠸࡚ࡣ࡯࡜ࢇ࡝ኚ໬ࡀ࡞࠿ࡗࡓࡢࡣࠊ
La2O3 ῧຍᮦ࡜ Y2O3 ῧຍᮦ࡟࠾࠸࡚ࠊẕ┦୰࠿ࡽࡑࢀࡒࢀ Al11La3 ࠾ࡼࡧ Y2O3 ࡀᯒฟࡋࡓࡓࡵ࡜⪃࠼ࡽࢀࡿࠋAl11La3 ࡢᯒฟࡀFig. 2 La2O3 ῧຍᮦࡢ XRD ࣉࣟࣇ࢓࢖ࣝ

Y2O3 ࡢᯒฟࡼࡾᚤ⣽࡛࠶ࡿࡓࡵ࡟ࠊLa2O3ῧຍᮦ࡟࠾࠸࡚↝⤖࡟ࡼࡿ኱ࡁ࡞◳ᗘቑຍࡀぢࡽࢀࡓ࡜⪃࠼ࡽࢀࡿࠋ
4. ཧ⪃ᩥ⊩[1]J. J. Lee and F. Sommer: Z. Metallkd, 76(1985) 750-754.
㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶホ౯࣭ண ࢩࢫࢸ࣒Ꮫศ㔝㸧Fig. 3 Y2O3 ῧຍᮦࡢ XRD ࣉࣟࣇ࢓࢖ࣝ              Fig. 4 (a) La2O3 ῧຍᮦ࡜(b)Y2O3 ῧຍᮦࡢ↝⤖ᚋࡢ TEM ᫂ど㔝ീ㸬▮༳ࡣࡑࢀࡒࢀ Al11La3 ࡜ Y2O3 ࢆ♧ࡍ㸬

− 219 −

㌿఩⥙ࢆ฼⏝ࡋࡓ⢏ෆ࣋࢖ࢼ࢖ࢺ⏕ᡂ࡜ࡑࡢᶵᲔⓗᛶ㉁࡬ࡢຠᯝ
ឡ፾኱Ꮫ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉ 㜰ᮏ㎮㢧㸪ᑠす᪩ⱑ㸪୰す♸ኴ㸪ྜྷ⃝ಇᕼ㸬ᖹᮏ㈗ྐ
1. ┠ⓗ㕲㗰ᮦᩱ୰ࡢ࣮࢜ࢫࢸࢼ࢖ࢺ⢏ෆ࡟᰾⏕ᡂࡍࡿ࣋࢖ࢼ࢖ࢺ㸦⢏ෆ࣋࢖ࢼ࢖ࢺ㸧ࡀᮦᩱࡢᙉᗘ࡜㠌ᛶࡢྥୖ࡟ຠᯝ
ⓗ࡛࠶ࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋ⢏ෆ࣋࢖ࢼ࢖ࢺ ࡢ᰾⏕ᡂࢧ࢖ࢺ࡜ࡋ࡚௓ᅾ≀ࡀᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿࡀࠊ௓ᅾ≀ࡣ◚ቯࡢ㉳Ⅼ࡜ࡋ࡚ാࡁࠊᘏᛶࢆపୗࡉࡏࡿཎᅉ࡜࡞ࡿࠋࡑࡇ࡛ᡃࠎࡣࠊ⢏ෆ࣋࢖ࢼ࢖ࢺࡢ᰾⏕ᡂࢧ࢖ࢺ࡜ࡋ࡚࣮࢜
ࢫࢸࢼ࢖ࢺ୰ࡢ㌿఩⥙ࢆ฼⏝ࡍࡿ◊✲ࢆ⾜ࡗ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊ࣮࢜ࢫࢸࢼ࢖ࢺ໬ฎ⌮๓ࡢ 750Υ࡛ࡢ➼ ಖᣢࡀ࣮࢜ࢫࢸࢼ࢖ࢺ୰࡬ࡢ㌿఩⥙ࡢᑟධ࠾ࡼࡧ⢏ෆ࣋࢖ࢼ࢖ࢺࡢ⏕ᡂ࡟ཬࡰࡍຠᯝࢆㄪ࡭ࡓࠋ ᐇ㦂᪉ἲ
Table1 ࡟౪ヨᮦࡢ໬Ꮫ⤌ᡂࢆ♧ࡍࠋ ヨᩱ SP ࡟ࡣ

Table1 ໬Ꮫ⤌ᡂ (mass%)

Fig. 1 ࡟♧ࡍࡼ࠺࡟ࠊ
࣮࢜ࢫࢸࢼ࢖ࢺ໬ฎ⌮๓࡟ 750Υ
࡛ 15 ࠶ࡿ࠸ࡣ 100s ࡢ➼ ಖᣢࢆ⾜࠸ịሷỈ୰࡟↝ධࢀ㸦IBQ㸧ࢆ⾜ࡗࡓࠋࡑࡢᚋࠊ1400Υ࡛ 300s ࡢ࣮࢜ࢫࢸࢼ࢖ࢺ໬ฎ⌮ࠊ500Υ࡛ 20s ࡢ࣋࢖ࢼ࢖ࢺ⏕ᡂฎ⌮ࢆ᪋ࡋࠊịሷỈ୰࡟↝ධࢀࡓࠋ࣮࢜ࢫࢸࢼ࢖ࢺ໬ฎ
⌮๓ࡢಖᣢ᫬㛫ࡀ 15 ࠶ࡿ࠸ࡣ 100s ࡢヨᩱࢆྛࠎࠊ
SP15
࠾ࡼࡧ SP100 ࡜グࡍࠋࡇࢀࡽࡢヨᩱࢆ࢚࣓࣮ࣜ⣬ࠊ࢔࣑ࣝࢼ⢊ᮎ࠾ࡼࡧࢥࣟ࢖ࢲࣝࢩ࡛ࣜ࢝ᶵᲔ◊☻ࡋࡓᚋࠊᚋ᪉ᩓ஘㟁Ꮚᅇᢡ㸦EBSD㸧 ἲ࡟ࡼࡾࠊ࣋࢖ࢼ࢖ࢺ࣭
ࣛࢫ࠿ࡽ⤖ᬗ᪉఩ࡢࢹ࣮ࢱࢆᚓ࡚ࠊ㞄᥋ࣛࢫ㛫ࡢࡍ࡭ࡾ⣔ࡢᖹ⾜ᛶࢆㄪ࡭ࡓࠋࡲࡓࠊࡑࢀࡒࢀࡢヨᩱ࡟ࡘ࠸࡚ࠊṍ㏿ᗘ 1 × 10 – 4 / s ࡟࡚ᐊ ࡛ᘬᙇヨ㦂ࢆ⾜࠸ࠊ㉮ᰝ㟁Ꮚ㢧ᚤ㙾㸦 SEM 㸧࡛◚㠃ほᐹࢆ⾜ࡗࡓࠋFig. 1 ⇕ฎ⌮ᅗ ⤖ᯝ SP15 ࠾ࡼࡧ SP100 ࡢᛂຊṍ᭤⥺ࢆ Fig. 2 ࡟♧ࡍࠋ
SP15 ࡜ SP100 ࡢ 0.2㸣⪏ຊࠊᘬᙇᙉᗘࠊᆒ୍ఙࡧ࠾ࡼࡧᒁ㒊ఙࡧࡣࠊྛࠎࠊ524 ࡜
538MPaࠊ650 ࡜ 709MPaࠊ5.9 ࡜ 7.4㸣ࠊ10.1
࡜ 15.4㸣࡛࠶ࡗࡓࠋSP100 ࡢ᪉ࡀ㧗ᙉᗘ࠾ࡼࡧ㧗ᘏᛶࢆ♧ࡍࡇ࡜ࡀศ࠿ࡿࠋ ࡇࡢཎᅉࢆㄪ࡭ࡿࡓࡵ࡟⤌⧊ほᐹࢆ⾜ࡗࡓࠋගᏛ㢧ᚤ㙾ほᐹࡢ⤖ᯝࢆ Fig. 3 ࡟♧ࡍࠋ࡝ࡕࡽࡢヨᩱ࡟ࡶ⢏ෆ࣋࢖ࢼ࢖ࢺࡀ୍㠃࡟ぢࡽࢀࡓࠋSP15 ࡜ SP100 ࡢࣛࢫᖜࢆ ᐃࡋࡓ⤖ᯝࠊ
ྛࠎࠊ2.5s0.63 ࠾ࡼࡧ 2.1s0.54 ȝ㹫࡜࡞ࡾࠊ
SP15 ࡢࣛࢫᖜࡼࡾ SP100 ࡢࣛࢫᖜࡢ᪉ࡀᑠ
ࡉ࠸ࡇ࡜ࡀศ࠿ࡿࠋSP100 ࡀ㧗ᙉᗘࢆ♧ࡋࡓ
Fig. 2  ᛂຊṍ᭤⥺ࡢࡣࠊ࣋࢖ࢼ࢖ࢺ࣭ࣛࢫࡀᚤ⣽࡛࠶ࡗࡓ࠿ࡽ

− 220 −

ࡔ࡜⪃࠼ࡽࢀࡿࠋ ࡲࡓࠊᘬᙇヨ㦂ᚋࡢ◚㠃ࢆ SEM ࡛ほᐹࡋࡓࠋࡑࡢ⤖ᯝࢆ Fig. 4 ࡟♧ࡍࠋᘏᛶ◚ቯ࡟ࡼࡿࢹ࢕ࣥࣉࣝࡀぢࡽࢀࠊࢹ࢕ࣥ
ࣉࣝࡢࢧ࢖ࢬࡣ SP15 ࡜ SP100 ࡟࠾࠸࡚ྛࠎࠊ3.2s1.1 ࠾ࡼࡧ 3.1s0.95 ȝm ࡛࠶
ࡾࠊSP100 ࡢ᪉ࡀࢃࡎ࠿࡟ᑠࡉ࠸ࡇ࡜ࡀ
ศ࠿ࡿࠋ

Fig. 3  ( a ) SP15 ࡜ ( b ) SP100 ࡢගᏛ㢧ᚤ㙾෗┿ ⪃ᐹ
ఙࡧ࡟ࡘ࠸࡚௨ୗ࡟⪃ᐹࡍࡿࠋ⢏ෆ࣋࢖ࢼ࢖ࢺࡣࠊ㞄᥋ࡍࡿࣛࢫྠኈࡢࡍ࡭ࡾ
⣔ࡢᖹ⾜ᛶࡀࡼ࠸ࣛࢫࡢ㞟ྜయ㸦ALPS࡜⛠ࡍࡿ㸧ࢆᙧᡂࡋࠊALPS ෆ࡟࠾࠸࡚
ࡣᘬᙇኚᙧ᫬࡟ࠊ࠶ࡿࣛࢫ࡟⏕ࡌࡓṍࢆ㞄᥋ࡍࡿࣛࢫࡀ⦆࿴ࡍࡿࡇ࡜ࡀ࡛ࡁࡿ

Fig. 4  ( a ) SP15 ࡜ ( b ) SP100 ࡢᘬᙇᚋ◚㠃ࡢ SEM ෗┿࡜⪃࠼ࡽࢀࡿࠋALPS ෆ࡟Ꮡᅾࡍࡿࣛࢫ
ࡢᩘࡀከ࠸ሙྜ࡜ᑡ࡞࠸ሙྜࢆẚ㍑ࡍ
ࡿ࡜ࠊከ࠸ሙྜ࡟ࡣᘬᙇኚᙧ᫬࡟ࢩ࣑ࣗ
ࢵࢺᅉᏊࡢ㧗࠸ࣛࢫࡢᏑᅾ☜⋡ࡀ㧗ࡃ࡞ࡿࡓࡵࠊALPS ෆ࡛ࡼࡾከࡃࡢ⟠ᡤ࡛㌿఩ࡀࡍ࡭ࡾ㐠ືࢆ㛤ጞࡋࠊ࠿ࡘࠊቑṪࡍࡿࡇ࡜࡟࡞ࡿࠋࡋࡓࡀࡗ࡚ࠊALPS ෆ࡟Ꮡᅾࡍࡿࣛࢫࡢᩘࡀከ࠸ሙྜ࡜ᑡ࡞
࠸ሙྜ࡜࡛ྠࡌṍࢆ୚࠼ࡓ࡜ࡁࠊ1 ࡘࡢࣛࢫෆ࡛㌿఩ࡀᤲࡃ㠃✚ࡣࣛࢫࡢᩘࡀ
ከ࠸࡯࠺ࡀᑠࡉࡃ࡞ࡿࠋࡇࡢࡓࡵࠊALPSෆ࡟ከࡃࡢࣛࢫࡀᏑᅾࡍࡿ᪉ࡀࣛࢫ⏺

Fig. 5   ( a ) As-received ᮦ࡜( b )750Υ15s ࠾ࡼࡧ( c )100s ➼ ಖᣢฎ⌮ᚋࡢ SEM ෗┿㠃࡛ࡢ㌿఩ࡢ⵳✚ࡣᑡ࡞ࡃࠊ๭ࢀࡢⓎ⏕ࡀᢚ࠼ࡽࢀࠊᆒ୍ఙࡧࡀ኱ࡁࡃ࡞ࡿ࡜⪃࠼ࡽࢀࡿࠋALPS ࡜ࢹ࢕ࣥࣉࣝࡢᑐᛂ࡟ࡘ࠸࡚ࡣ௒ᚋࡢㄢ㢟࡛࠶ࡿࠋ๓ฎ⌮࡟ࡼࡾ࣮࢜ࢫࢸࢼ࢖ࢺ୰࡟㌿఩ࡀᑟධࡉࢀࡿࡇ࡜࡟ࡘ࠸࡚ࠊ௨ୗ࡟⪃ᐹࡍࡿࠋ౪ヨᮦࡣ Fig. 5(a) ࡟♧ࡍࡼ࠺࡟ࣇ࢙ࣛ࢖ࢺ⤌⧊࡜࡞ࡗ࡚࠸ࡿࠋࡇࢀ࡟ 750Υ࡛➼ ಖᣢࢆ᪋ࡍࡇ࡜࡟ࡼࡾࠊ⢏⏺࠾ࡼࡧ཮ᬗቃ⏺࡟࣮࢜ࢫࢸ
ࢼ࢖ࢺࡀ⏕ᡂࡍࡿࠋ࣮࢜ࢫࢸࢼ࢖ࢺࡀⷧࡃ⏕ᡂࡋࡓ⑞㊧ࡀ Figs. 5(b) ࠾ࡼࡧ (c) ࡟ࠊ⢏⏺࠾ࡼࡧ཮ᬗቃ⏺ୖࡢ᫂ࡿ࠸ࢥࣥࢺࣛࢫࢺࡢ㡿ᇦ࡜ࡋ࡚⌧ࢀ࡚࠸ࡿࠋ
➼ ಖᣢ᫬࡟࠾࠸࡚࣮࢜ࢫࢸࢼ࢖ࢺࡀⷧࡃ⏕ᡂࡍࡿ࡜ᩚྜṍ࠾ࡼࡧኚែ
ṍࢆ⦆࿴ࡍࡿࡓࡵ࡟ⷧ࠸࣮࢜ࢫࢸࢼ࢖ࢺࡀኚᙧࡋ࡚㌿఩ࡀᑟධࡉࢀࡿ࡜⪃࠼ࡽࢀࡿࠋ
㌿఩⥙ࡀᙧᡂࡉࢀࡿࡓࡵ࡟ࡣ
㌿఩ࡀ⛣ືࡋ஫࠸࡟཯ᛂࡍࡿᚲせࡀ࠶ࡿࡀࠊ࣮࢜ࢫࢸࢼ࢖ࢺࡀⷧࡍࡂࡿ࡜ࣇ࢙ࣛ࢖ࢺ/࣮࢜ࢫࢸࢼ࢖ࢺ⏺㠃ࡢᙳ㡪࡛㌿఩ࡢ⛣ືࡀጉࡆࡽࢀ㌿఩ྠኈࡢ཯ᛂࡀᢚไࡉࢀࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡢࡓࡵ࣮࢜ࢫࢸࢼ࢖ࢺࡢཌࡉࡀቑຍࡋࡓ
SP100 ࡟࠾࠸࡚ࡼࡾከࡃࡢ㌿఩⥙ࡀᙧᡂࡉࢀ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡢ⤖ᯝࠊ㌿఩⥙ࢆ᰾⏕ᡂࢧ࢖ࢺࡋ࡚⏕ᡂࡋࡓ࣋࢖ࢼ࢖ࢺ࣭ࣛࢫࡀ SP100 ࡟࠾࠸࡚ᚤ⣽໬ࡉࢀࡓ࡜⪃࠼ࡽࢀࡿࠋ ௨ୖࡼࡾࠊ㧗ᙉᗘ࣭㧗ᘏᛶࢆᘬࡁฟࡍ⤌⧊ไᚚࢆ⾜࠺ࡓࡵ࡟ࡣࠊᚤ⣽࡞ࣛࢫ࠾ࡼࡧ ALPS ෆࡢࣛࢫᩘࡢไᚚࡀ㔜せ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ
㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶホ౯࣭ண ࢩࢫࢸ࣒Ꮫศ㔝㸧     − 221 −

࣐ࢢࢿࢩ࣒࢘ྜ㔠ࡢ⤖ᬗ⢏ᚤ⣽໬࡟ཬࡰࡍ࢖ࢵࢺ࣒ࣜ࢘ῧຍຠᯝ
ឡ፾኱Ꮫ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉ 㜰ᮏ㎮㢧㸪ᯇᮏᣅஓ㸪ᑠཎ᫂᪥ே
1. ┠ⓗᆅ⌫ ᬮ໬ࡀ⌧ᅾၥ㢟࡜࡞ࡗ࡚࠾ࡾࠊ⮬ື㌴ᮦᩱ࡟࠾࠸࡚ࡣ㍍㔞໬ࡀ㔜せ࡜࡞ࡗ࡚࠸ࡿࠋࡑࡢࡓࡵ㍍㔞࡛࠶ࡿ
Mg ྜ㔠ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋMg ྜ㔠ࡢ୰࡛ AZ91㸦Mg-9Al-1Zn㸧ࡣ⪏㣗ᛶ࡟ඃࢀ࡚࠾ࡾࠊᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿࠋࡉࡽ࡟㧗ᙉᗘ໬࠾ࡼࡧ⪏⇕ᛶࢆྥୖࡉࡏࡿࡇ࡜ࡀ࡛ࡁࢀࡤࠊᛂ⏝⠊ᅖࡢᣑ኱ࡀᮇᚅ࡛ࡁࡿࠋࡑࡢࡓࡵ࡟ᕼᅵ
㢮ඖ⣲ࡢῧຍࡀ୍ࡘࡢ᭷ຠ࡞᪉ἲ࡛࠶ࡾࠊ
ᕼᅵ㢮ඖ⣲ࡢῧຍ࡟ࡼࡾ⤖ᬗ⢏ᚤ⣽໬ࡸ⪏⇕ᛶࡢྥୖ࡟㛵ࡍࡿ◊✲ࡀሗ࿌ࡉࢀ࡚࠸ࡿ[1]ࠋMg ྜ㔠࡟ Y ࢆῧຍࡋࡓ◊✲ࡣ࠸ࡃࡘ࠿ᏑᅾࡍࡿࡀࠊY ῧຍ࡟ࡼࡿ⤖ᬗ⢏ᚤ⣽໬ࡢᶵᵓࡣ✀ࠎࡢሗ࿌౛ࡀ࠶ࡾ᫂☜࡟ࡉࢀ࡚࠸࡞࠸ࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊAZ91 ࡟ Y ࢆῧຍࡋࠊ⤖ᬗ⢏ᚤ⣽໬࡟ཬࡰࡍ Y ࡢῧຍຠᯝࢆㄪ࡭ࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ ᐇ㦂᪉ἲ
Table1 ࡟♧ࡍ໬Ꮫ⤌ᡂࡢ࢖ࣥࢦࢵ

Table1 ໬Ꮫ⤌ᡂ (mass%)ࢺࢆ‽ഛࡋࡓࠋࡇࢀࡽ AZ91-(0.1㹼1)Yࡣḟࡢࡼ࠺࡟㔜ຊ㗪㐀࡟ࡼࡾస〇ࡋࡓࠋࡲࡎ AZ91 ࢆ㕲㗰〇ࣝࢶ࣎ࡢ୰࡛
800Υ࡟࡚⁐࠿ࡋࠊ
0.1㹼1mass%ࡢ Y ࢆᢞධࡋࡓᚋ 5 ศ㛫᧠ᢾࡋࡓࠋ᧠ᢾࡋ࡚
40 ศᚋ࡟㕲㗰〇ࡢ㗪ᆺ࡟㗪㐀ࡋࡓࠋ

AZ91-0Y ࡣ Y ࢆῧຍࡏࡎ࡟㗪㐀ࡋࡓࠋヨᩱࡣ࢖ࣥࢦࢵࢺࡢ୰ኸ㒊࠿ࡽษࡾฟࡋࡓࠋAZ91-(0㹼1)Y ࡛ྛ࢖ࣥࢦࢵࢺ
࠿ࡽษࡾฟࡋࡓヨᩱࡢ㗪㐀᮲௳ࡀྠࡌ࡟࡞ࡿࡼ࠺࡟ࠊヨᩱࡢษࡾฟࡋ⟠ᡤࢆ⤫୍ࡋࡓࠋ┦ࡢྠᐃࡣ X ⥺ᅇᢡ㸦XRD㸧
࡟ࡼࡾゎᯒࡋࡓࠋ⤌⧊ほᐹࡣࠊ
ᶵᲔ◊☻ᚋࠊ
1%ࢼ࢖ࢱ࣮࡛ࣝ⭉㣗ࡋගᏛ㢧ᚤ㙾࡛⾜ࡗࡓࠋᚋ᪉ᩓ஘㟁Ꮚᅇᢡ㸦EBSD㸧
⏝ࡢヨᩱࡣࠊᶵᲔ◊☻ᚋࠊ◪㓟 10mlࠊ㓑㓟 30mlࠊỈ 40mlࠊ࢚ࢱࣀ࣮ࣝ 120ml ࡢΰྜ⁐ᾮ࡛໬Ꮫ◊☻ࡋࡓࡶࡢࢆ౑
⏝ࡋࡓࠋ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾㸦TEM㸧⏝ࡢヨᩱࡣ㞟᮰࢖࢜ࣥࣅ࣮࣒࡟ࡼࡾస〇ࡋࡓࠋ ⤖ᯝ࠾ࡼࡧ⪃ᐹ
AZ91-(0㹼1)Y ࡢ XRDᐃࡢ⤖ᯝࢆ Fig.1

࡟♧ࡍࠋࡍ࡭࡚ࡢヨᩱ࡟࠾࠸࡚ Į-Mg ࡜ȕ-Mg17Al12 ࡢࣆ࣮ࢡࡀぢࡽࢀࡓࠋ඲࡚ࡢヨᩱࡣ Į ┦࡜ ȕ ┦࠿ࡽ࡞ࡗ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋ
ࡇࢀࡽࡢヨᩱࡢ࠺ࡕ AZ91-0Y ࡜-1Y ࡢගᏛ㢧ᚤ㙾ほᐹࡢ⤖ᯝࢆ Fig.2 ࡟♧ࡍࠋAZ91-0Y ࡜-1Y ࡟ࡣ࡜ࡶ࡟ࢹࣥࢻࣛ࢖ࢺ≧ࡢ Į ┦ࡀぢࡽࢀࠊࢹࣥࢻࣛ࢖ࢺ࢔࣮࣒ࡢᖜ࡟኱ࡁ࡞ᕪࡣぢࡽࢀ࡞࠸ࠋࢹࣥࢻࣛ࢖ࢺ࢔࣮࣒ࡢ㛫࡟㠀ᖹ⾮ඹᬗ࡟ࡼࡾ⏕ᡂࡋࡓሢ≧ࡢ ȕ ┦ࡀぢࡽࢀࡿࠋࡲࡓ Į ┦࡜ ȕ ┦ࡀ࣓ࣛࣛ≧࡟⏕ᡂࡋ࡚࠸ࡿ⟠ᡤࡀぢࡽࢀࡿࠋ㐣㣬࿴࡞ Į ┦࠿ࡽ୙㐃⥆ᯒฟ࡟ࡼࡾᯒฟࡋࡓ ȕ ┦࡛࠶ࡾࠊࢹࣥࢻࣛ࢖ࢺ࢔

Fig. 1  AZ91-(0~1)Y ࡢ XRD ࣉࣟࣇ࢓࢖ࣝ

࣮࣒ࡢ୰ᚰ㒊࡟ࡣᏑᅾࡏࡎࠊእഃ௜㏆࡟Ꮡᅾ

− 222 −

Fig. 3 (a)AZ91-0Y ࡜(b)AZ91-1Y ࡢ SEM ෗┿࡜ࠊ(c,d)ྠࡌ㡿ᇦࡢ EBSD ࡟ࡼࡿ㏫ᴟⅬᅗ࣐ࢵ

Fig. 2 (a,c)AZ91-0Y ࡜(b,d)AZ91-1Y ࡢගᏛ㢧ᚤ㙾෗┿ࡋ࡚࠸ࡿࠋEDS ࡟ࡼࡿ⤌ᡂศᯒࡢ⤖ᯝࢹࣥࢻࣛ࢖ࢺ࢔࣮࣒ࡢ୰ᚰ㒊ࡼࡾእഃࡢ᪉ࡀ Al ⃰ᗘࡀ㧗ࡃࠊ㗪㐀ࡢ㝿ࡢ㠀ᖹ⾮จᅛࡢࡓࡵࢹࣥࢻࣛ࢖ࢺ࢔࣮࣒ࡢእഃࡢ Al ⃰ᗘࡀ㧗ࡃ࡞ࡗࡓࡓࡵ࡜⪃࠼ࡽࢀࡿࠋ
ࡇࢀࡽࡢヨᩱࡢ EBSD ࡟ࡼࡿ᪉఩ゎᯒࢆ⾜ࡗࡓ⤖ᯝࢆ Fig.3 ࡟♧ࡍࠋAZ91-0Y ࡜-1Y ࡜࡛ࡣࢹࣥࢻࣛ࢖ࢺ࢔࣮࣒
ࡢᖜ࡟ᕪࡣぢࡽࢀ࡞࠸ࡀࠊྠࡌ⤖ᬗ᪉఩ࢆ᭷ࡍࡿ㡿ᇦࡢࢧ࢖ࢬ࡟ᕪࡀぢࡽࢀࠊAZ91-1Y ࡛ࡣࡑࡢ㡿ᇦࡀᚤ⣽໬ࡉࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡇࡢ㡿ᇦࡣ⤖ᬗ⢏࡛࠶ࡿ࡜⪃࠼ࡽࢀࠊY ࢆῧຍࡍࡿࡇ࡜࡟ࡼࡾ⤖ᬗ⢏ࡀᚤ⣽໬ࡋ࡚࠸ࡿࡇ
࡜ࡀศ࠿ࡿࠋࡇࡢཎᅉࢆㄪ࡭ࡿࡓࡵ࡟ TEM ほᐹࢆ⾜ࡗࡓࠋFigure 4 ࡟♧ࡍࡼ࠺࡟ AZ91-1Y ࡟ࡣ Al2Y ࡢᯒฟࡀぢࡽࢀࠊFig.5 ࡢ㟁Ꮚᅇᢡᅗᙧࡢゎᯒࡢ⤖ᯝࠊAl2Y ࡜ Į ┦࡜ࡢ㛫࡟ࡣ (000 1 ) Į// ( 1 10 ) Al2Yࠊ ( 2 1 1 0) Į// (11 1 ) Al2Yࠊ
(0 1 1 0) Į// (112 ) Al2Yࠊࡢ᪉఩㛵ಀࡀぢࡽࢀࡓࠋY ῧຍ࡟ࡼࡾ⤖ᬗ⢏ࡀᚤ⣽໬ࡋࡓࡢࡣࠊAl2Y ࡀ Į ┦ࡢจᅛ᰾࡜ࡋ

࡚ാ࠸ࡓࡇ࡜ࡀ୍ᅉ࡜⪃࠼ࡽࢀࡿࠋࡋ࠿ࡋࠊࡍ࡭࡚ࡢ⤖ᬗ⢏ࡢ᰾࡜࡞ࡿ࡯࡝ࡢ Al2Y ࡣ⏕ᡂࡋ࡚࠸࡞࠸࡜⪃࠼ࡽࢀࡿࠋࡋࡓࡀࡗ࡚ࠊ⤖ᬗ⢏ᚤ⣽໬࡟ࡣ Al2Y ࡢ࡯࠿ࡢせᅉࡶ⪃࠼ࡽࢀࡿࠋࡍ࡞ࢃࡕ Į ┦ࡢจᅛࡢ㝿ࠊY ࡀᾮ┦࡟ྤࡁฟࡉࢀࡿࡇ࡜࡟ࡼࡾ Į ┦ࡢ⼥Ⅼࡀୗࡀࡾ Į ┦ࡢจᅛ㏿ᗘࢆపୗࡉࡏࡿࡓࡵ࡟⤖ᬗ⢏ᚄࡀᑠࡉࡃ࡞ࡿྍ⬟ᛶࡀ⪃࠼ࡽࢀࡿࡀ௒ᚋࡢㄢ㢟࡛࠶ࡿࠋ ཧ⪃ᩥ⊩
[1]S. R. Wang, P. Q. Guo, L. Y. Yang and Y. Wang: J. Mater. Eng. Perform., 18 (2009) 137-144.
㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶホ౯࣭ண ࢩࢫࢸ࣒Ꮫศ㔝㸧Fig.4 (a)AZ91-1Y ࡢ SEM ෗┿࡜ࠊ(b)௓ᅾ≀࠿
ࡽࡢ EDS ࢫ࣌ࢡࢺࣝ

Fig.5 Fig.4 ࡢ௓ᅾ≀ࡢ TEM ෗┿㸸(a)᫂ど㔝ീࠊ(b)ᬯど㔝ീࠊ(c)Al2Y ࡜(d)ࡢ㟁Ꮚᅇᢡᅗᙧ

− 223 −㧗 ࣮ࣞࢨ㢧ᚤ㙾࡟ࡼࡿจᅛ࣭ᅛ┦ኚែ࡜ࡑࡢሙほᐹ ⁐⼥ụ☢Ẽไᚚ࢔࣮ࢡ⁐᥋ἲ࡟ࡼࡿ஺ὶ☢ሙࢆᛂ⏝ࡋࡓจᅛ⤌⧊ࡢほᐹἈ⦖┴ᕤᴗᢏ⾡ࢭࣥࢱ࣮ ⏕⏘ᢏ⾡◊✲⌜Ჴཎ 㟹 ┠ⓗ
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㧗࣮ࣞࢨ㢧ᚤ㙾࡟ࡼࡿจᅛ࣭ᅛ┦ኚែ࡜ࡑࡢሙほᐹࣁ࢖ࣈࣜࢵࢻ㸲D ࡑࡢሙほᐹࢩࢫࢸ࣒ࡢ㛤Ⓨ୍⯡㈈ᅋ ⥲ྜ⛉Ꮫ◊✲ᶵᵓᮾᾏ஦ᴗࢭࣥࢱ࣮ ฼⏝◊✲ಁ㐍㒊
PARKER JOSEPHDONᙇ ᭾※㸦௨ୗ ᮏᩥ㸧֙ ┠ⓗTo improve the safety and reliability of the infrastructure that underpins our modern society, it isimperative that we fully understand metal manufacturing processes (e.g., solidification, heat treatment,
welding, etc.). Using X-ray or optical methods for material characterization, it is difficult to see below thesurface to study the internal properties of real world, bulk materials, forcing us to rely on simulation
methods. To construct accurate simulation models, we require specific knowledge of the changes in thematerials that occur during the fabrication process as obtained experimentally using a 4D (i.e., space +time) measurement system. In pursuit of such measurements, a system comprised of a laser microscopeand high-temperature cell was used to directly record the solidification process on the surface of a heatedsteel sample as it was allowed to cool [1].
While this previous work was limited to the surface of the metal, by using neutrons, which arehighly penetrating, we can directly measure the internal properties of bulk materials and the effects offabrication processes in situ. In particular, by using a pulsed neutron beam, we are able to access a wide
range of neutron energies in a single measurement (accurately measured via the time-of-flight between
the source and detector) to perform newly developed energy-resolved neutron imaging techniques todirectly image the macroscopic distribution of microscopic properties such as crystallographic structure
and internal strain (Bragg-edge transmission method), nuclide-specific density and temperature
distributions (neutron resonance absorption method), and internal/external magnetic fields (pulsed,
polarized neutron imaging method) [2]. Such measurements, combined with the 4D measurement
system, will lead to a deeper understanding of material processing and provide direct benefits for the
improvement of fabrication techniques and the development of new, innovative materials.

֚ ◊✲᪉ἲ
As our ultimate goal, we will use the pulsed neutron beam at the Energy-Resolved Neutron Imaging
System, RADEN, of the J-PARC Materials and Life Science Experimental Facility (MLF) [2] to perform− 226 −

energy-resolved neutron imaging of material fabrication processes in real time. These energy-resolved
imaging measurements will be combined with the 4D measurement system for the characterization of
the materials and fabrication processes on both the surface and within the bulk of the sample. At thefirst stage, we will carry out the development of the high-temperature cell necessary to accomplish suchmeasurements. This development was advanced through the collaborative research with the Osaka
University Joining and Welding Institute (JWRI).

֛ ⤖ᯝ
Over a series of four meetings held at JWRI and attended by myself and S. Zhang (also of ⥲ྜ⛉Ꮫ◊✲ᶵᵓ) and Professor Yu-ichi Komizo and Associate Professor Hidenori Terasaki, we discussed thedevelopment of a high-temperature sample environment for use at RADEN. Using a sample heater at
JWRI as a base, we were able to consider the development of similar equipment tailored to theconditions (beam size, safety requirements, etc.) at RADEN, gleaning valuable information. Thisdevelopment has since been subsumed into a project at RADEN to construct a tensile testing system
including a high-temperature sample cell.
Additionally, we developed an experiment proposal to perform Bragg-edge imaging of a welded steel
sample at RADEN (principal investigator: H. Terasaki). The proposal was accepted under the ‘Trial Use’program for the 2015A run period of the J-PARC/MLF. Such measurements are a necessary first step
towards real-time imaging experiments.

֜ ⤖ㄽ
Through our collaborative research and the experience and expertise of the JWRI, we have successfully
taken the first steps toward our goal of developing a hybrid 4D measurement system for real-time, insitu imaging of metal fabrication processes. The insights gained into the design parameters of thehigh-temperature cell and through the proposed imaging measurement at RADEN will be invaluable as
we continue this work.

֝ ཧ⪃ᩥ⊩[1] S. Zhang, S. Morito, and Y. Komizo, “Variant Selection of Low Carbon High Alloy Steel in an
Austenite Grain during Martensite Transformation”, ISIJ International, Vol. 52 (2012) pp. 510-515.
[2] Y. Kiyanagi et al., “Present status of research on pulsed neutron imaging in Japan”, Physics Procedia
Vol. 43 (2013) pp. 92-99.

㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶホ౯࣭ண

− 227 −

ࢩࢫࢸ࣒Ꮫศ㔝㸧࣍࢘໬ࢳࢱࣥ࡟ࡼࡿࢳࢱࣥ⁐᥋㔠ᒓࡢ⤌⧊ไᚚ          ኱㜰ᗓ❧኱Ꮫ  䭜ᕝṇே࠙⥴ゝࠚࢳࢱ࣭ࣥࢳࢱࣥྜ㔠ࡣ㧗ẚᙉᗘࠊ㧗⪏㣗ᛶ࡞࡝ࡢ≉ᛶࢆ᭷ࡋ࡚࠸ࡿࡇ࡜࠿ࡽࠊᾏὒᵓ㐀≀ࡸ⯪⯧࡞࡝ࡢ⁐᥋ᵓ㐀≀࡟౑⏝ࡉࢀ࡚࠾ࡾࠊࡑࡢ㐺⏝ࡀᣑ኱ࡉࢀࡘࡘ࠶ࡿ 1)ࠋࡋ࠿ࡋࠊ⁐᥋ຍᕤࡢၥ㢟Ⅼ࡜ࡋ࡚ࠊ⁐᥋㔠ᒓࡢ⤖ᬗ⢏ࡀẕᮦ࡟ẚ࡭࡚⢒኱໬ࡍࡿࡇ࡜࡟ࡼࡾᛶ㉁ࡀຎ໬ࡍࡿ࡜࠸࠺ࡇ࡜ࡀᣲࡆࡽ
ࢀࡿࠋࡇࡢၥ㢟Ⅼࢆゎᾘࡍࡿࡓࡵࠊ⤌⧊ไᚚ࡟ࡼࡿᶵᲔⓗᛶ㉁ࡢྥୖࢆᅗࡿࡇ࡜ࡀᚲせ࡛࠶ࡿࠋ㏆ᖺࠊ࣍࢘⣲ࢆࢳࢱࣥ࡟ῧຍࡋ࡚࣍࢘໬ࢳࢱࣥ(TiB)ࢆᙧᡂࡍࡿࡇ࡜࡟ࡼࡾࠊ⤌⧊ᚤ⣽໬ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ
㗪㐀ࠊ↝⤖ࡢศ㔝࡛᫂ࡽ࠿࡟࡞ࡗ࡚࠾ࡾࠊᘬᙇᙉࡉࡸ◳ࡉྥୖ࡜࠸ࡗࡓᶵᲔⓗᛶ㉁ࡢᨵၿࡀㄆࡵࡽࢀ࡚࠸ࡿ 2, 3)ࠋ
ᮏ◊✲࡛ࡣࠊTiB ࡟ࡼࡿ⣧ࢳࢱࣥ⁐᥋㔠ᒓࡢᙉ໬ࢆヨࡳࠊ࢘⣲ῧຍ࡟ࡼࡿ⣧ࢳࢱࣥ⁐᥋㔠ᒓ࡬ࡢᙳ㡪ࢆヲ⣽࡟ほᐹࡋࠊࡉࡽ࡟ከᒙ┒⁐᥋ࢆᶍᨃࡋࡓ෌⇕࡟ࡼࡿ⤌⧊ኚ໬࡟ࡘ࠸࡚
࠶ࢃࡏ᳨࡚ウࡋࡓࠋFig.1 FE-SEM images of Ti with boron :࠙ᐇ㦂᪉ἲࠚᕤᴗ⏝⣧ࢳࢱࣥᯈ 150l×30w×1.5tmm ୖ࡟࣍࢘a) As-welded, b) Reheat.
ࢆሬᕸࡋࠊ࢞ࢫ࣭ࢱࣥࢢࢫࢸ࣭ࣥ࢔࣮ࢡ⁐᥋ἲ࡟ࡼࡿ୍ᐃ
ࣅ࣮ࢻ࢜ࣥࣉ࣮ࣞࢺ࡛⁐᥋ࢆ⾜ࡗࡓࠋ⁐᥋᮲௳ࡣࠊ⁐᥋㟁ὶ
100Aࠊ⁐᥋㏿ᗘ 144cm/minࠊ࢔࣮ࢡ㛗 1.5mmࠊࢺ࣮ࢳࢩ࣮ࣝ
ࢻ࢞ࢫ࠾ࡼࡧ࢔ࣇࢱ࣮ࢩ࣮ࣝࢻ࢞ࢫ࡜ࡋ࡚࢔ࣝࢦࣥ࢞ࢫࢆ⏝࠸ࠊὶ㔞ࡣࡑࢀࡒࢀ 20ࠊ30 l/min ࡜ࡋࡓࠋࡲࡓࠊᙧᡂࡉࢀࡓ⁐᥋㔠ᒓࢆ㉥እ⥺࢖࣓࣮ࢪຍ⇕⅔࡟ࡼࡾ෌⇕ࡋࠊ࣮ࣞࢨ㢧ᚤ㙾࡟ࡼࡾࡑࡢሙほᐹࢆ⾜ࡗࡓࠋ⇕ࢧ࢖ࢡࣝࡣ᭱㧗ຍ⇕ ᗘ 1495Υࠊຍ⇕㏿ᗘ 3.3Υ/sࠊ෭༷㏿ᗘ 37.5Υ/s ࡜ࡋࡓࠋᙧᡂࡉࢀࡓ⤌⧊࡟ࡘ࠸࡚ගᏛ㢧ᚤ㙾(OM)ࠊ㟁Ꮚ㢧ᚤ㙾(FE-SEMࠊTEM)࡟ࡼࡾ
ほᐹࡋࡓࠋࡉࡽ࡟ᚋ᪉㟁Ꮚᩓ஘ࣃࢱ࣮ࣥ(EBSD)࡟ࡼࡿ⤌⧊ホ౯ࡶ⾜ࡗࡓࠋ
࠙⤖ᯝ࡜⪃ᐹࠚFig.1 (a) ࡟࣍࢘⣲ࢆῧຍࡋࡓ⣧ࢳࢱࣥ⁐᥋㔠ᒓࡢ FE-SEM ほᐹീࢆ♧ࡍࠋࢭࣝ≧࡟ TiB ࡀศᕸࡋ࡚࠸ࡿ⤌⧊࡛࠶ࡗࡓࠋࡇࢀࢆ㉥እ⥺࢖࣓࣮ࢪຍ⇕⅔࡛ 1495Υࡲ࡛ຍ⇕ᚋࠊ෭༷ࡍࡿ࡜ Fig.1 (b)ࡢࡼ࠺࡟ࢭࣝ≧⤌⧊ࡣほᐹࡉࢀࡎࠊሢ
≧ࡢᯒฟ≀ࡀࣛࣥࢲ࣒࡟Ꮡᅾࡍࡿ⤌⧊࡜࡞ࡗࡓࠋFig.2 ࡟෌⇕᫬ࡢຍ⇕࣭෭༷㐣⛬࡟࠾ࡅࡿ⤌⧊ᙧែኚ໬ࢆ♧ࡍࠋຍ⇕㐣⛬࡟࠾࠸࡚ࠊ1250Υ௜㏆࠿ࡽḟ➨࡟ࢭࣝ≧ࡢ⤌⧊ࡀᾘ⁛ࡋࠊሢ≧ࡢ
Fig.2 In-situ observation of microstructure
evolution during reheating and cooling.
ᯒฟ≀ࡀ⏕ᡂࡋጞࡵࡓࠋࡑࡢᚋࠊ᭱㧗ຍ⇕ ᗘ௜㏆࡟࠾࠸࡚ᯒ
ฟ≀ࡢࢧ࢖ࢬࡣ 2ȝm ⛬ᗘ࡟࡞ࡗࡓࠋࡲࡓࠊ෭༷㐣⛬࡟࠾࠸࡚ࠊ
ȕ-Į ኚែ᫬࡟ሢ≧ࡢᯒฟ≀࠿ࡽ㔪≧ࡢ Į ࢳࢱࣥࣉ࣮ࣞࢺࡀከ᪉
ྥ࡟⏕ᡂࡋࡓࠋFig.3 (a) ~ (c) ࡟⢏ෆ࡟ほᐹࡉࢀࡓሢ≧ࡢᯒฟ≀࠿ࡽࡢ᫂ど㔝ീࠊไ㝈ど㔝ᅇᢡࣃࢱ࣮ࣥࠊᬯど㔝ീࢆ♧ࡍࠋྠᐃࡢ⤖ᯝࠊᯒฟ≀ࡣᩳ᪉ᬗࡢ TiB ࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ
ࡲࡓࠊࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂ࡢ⤖ᯝࠊ⁐᥋ࡲࡲ࡛ࡣ HV 174 ࡛࠶ࡿࡢ࡟ᑐࡋࠊ෌⇕ᚋ࡛ࡣ HV 199 ࡛࠶ࡗࡓࠋࡇࢀࡣ෌⇕࡟ࡼࡗ࡚ࠊ␗࡞ࡿ TiB ᯒฟ≀࠿ࡽ⏕ᡂࡋࡓ Į ࢳࢱࣥࣉ࣮ࣞࢺྠኈࡀ
⾪✺ࡋྜ࠺ࡇ࡜࡟ࡼࡾࠊ⤖ᬗ⢏ᡂ㛗ࡀᢚไࡉࢀࡿࡇ࡜࡟ࡼࡿ⤌⧊ᚤ⣽໬ࡢᙳ㡪࡛࠶ࡿ࡜⪃࠼ࡽࢀࠊᶵᲔⓗᛶ㉁ࡢྥୖࡀᮇᚅࡉ
ࢀࡿࠋ࠙ཧ⪃ᩥ⊩ࠚ
1) ኱໭ ⱱ, ཬᕝ ึᙪ: ᪂᪥㕲ᢏሗ, ➨ 385 ྕ, 2006
2) S. Tamirisakandala, R.B. Bhat, J.S. Tiley, D.B. Miracle: Scripta
Fig.3 TEM analysis of TiB in weld metal :Materialia, Vol. 53, 2005, p.p.1421-1426.
㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶホ౯࣭ணࢩࢫࢸ࣒Ꮫศ㔝㸧− 228 −a) Bright field image, b) SAD pattern,c) Dark field image taken from TiB spot.

DLC ࢥ࣮ࢸ࢕ࣥࢢࡢ๓ฎ⌮࡜ࡋ࡚ࡢ࢔ࢡࢸ࢕ࣈࢫࢡ࣮ࣜࣥࣉࣛࢬ࣐❅໬ࡢຠᯝ㛵す኱Ꮫ኱Ꮫ㝔      ㏆⸨ᾈᘺẸ㇂㝯⣧㛵す኱Ꮫ኱Ꮫ㝔 ⌧ ᰴ ࣇ࢓࢖ࣥࢩࣥࢱ࣮  ኳ㔝 ᛭㛵す኱Ꮫ໬Ꮫ⏕࿨ᕤᏛ㒊     すᮏ᫂⏕
1. ⥴ゝ
DLC ࡣࢺࣛ࢖࣎ࣟࢪ࣮≉ᛶ࡟ඃࢀࡓ◳㉁⓶⭷࡛࠶ࡿࡀࠊ⓶⭷ࢆᙧᡂࡍࡿ㝿ࡢᇶᮦ࡜ࡢᐦ╔ᛶࡣࡑࢀࡽࡢ≀ᛶࡢᩚྜᛶ࡟ᙳ㡪ࡉࢀࡿࠋࡑࡢࡓࡵࠊ❅໬ࡸᾐⅣ࡜࠸ࡗࡓ◳㉁⓶⭷ࡢୗᆅ࡛࠶ࡿᇶᮦ
ࢆ◳໬ࡍࡿฎ⌮࡜⓶⭷ࢆᙧᡂࡉࡏࡿฎ⌮ࢆ⤌ࡳྜࢃࡏࡓ」ྜฎ⌮ࢆ᪋ࡍࡇ࡜࡛ࠊᩚྜᛶᨵၿࡢྲྀ
ࡾ⤌ࡳࡀ࡞ࡉࢀ࡚࠸ࡿࠋ❅໬ἲࡢ୍✀࡛࠶ࡿ࢔ࢡࢸ࢕ࣈࢫࢡ࣮ࣜࣥࣉࣛࢬ࣐❅໬(ASPN)ࡣࠊᚑ᮶
ࡢࣉࣛࢬ࣐❅໬࡛࠶ࡿ┤ὶࣉࣛࢬ࣐❅໬(DCPN)࡛ၥ㢟࡜ࡉࢀ࡚࠸ࡿ࢚ࢵࢪຠᯝࡸ࢔࣮࢟ࣥࢢ࡜
࠸ࡗࡓᆒ୍࡟ฎ⌮ࡉࢀ࡞࠸࡜࠸࠺⌧㇟ࢆゎỴࡍࡿ᪉ἲ࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊASPN ฎ⌮ࢆ⾜࠺ࡇ࡜࡛⏕ࡌࡿ㔠ᒓ❅໬≀࡞࡝࠿ࡽᵓᡂࡉࢀࡿሁ✚≀ࡀࠊDLC ࡬ࡢᐦ╔ᛶ࡟ཬࡰࡍᙳ㡪ࡣࡲࡔ᫂ࡽ࠿࡟ࡉࢀ࡚࠸࡞࠸ࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊASPN ฎ⌮ᚋ࡟ DLC ᡂ⭷ࢆ⾜࠸ࠊDLC ᡂ⭷๓ฎ⌮࡜ࡋ࡚ࡢ ASPN ࡢሁ✚≀ࡀ⓶⭷ࡢᛶ㉁࡬ཬࡰࡍᙳ㡪ࢆㄪᰝࡋࡓࠋ
2. ᐇ㦂᪉ἲ
ᇶᮦ࡜ࡋ࡚ȭ25×5 mm ࡢ࣮࢜ࢫࢸࢼ࢖ࢺ⣔ࢫࢸࣥࣞࢫ㗰 SUS304 ࢆ⏝࠸ࠊ㙾㠃◊☻ᚋྛヨᩱ࡟
DCPN ฎ⌮࡜ ASPN ฎ⌮ࢆ᪋ࡋࡓࠋฎ⌮ ᗘ 673 Kࠊฎ⌮᫬㛫 18 ࠾ࡼࡧ 54 ksࠊ࢞ࢫᅽຊ 600 Paࠊ࢞ࢫ⤌ᡂ N2㸸H2=1㸸3 ࡛ฎ⌮ࡋࡓࠋASPN ฎ⌮࡛ࡣࠊࢫࢡ࣮ࣜࣥ࡜ࡋ࡚ SUS304 〇ࡢ࢚࢟ࢫࣃࣥ
ࢻ࣓ࢱࣝࢆ⏝࠸ࡓࠋࡑࡢᚋࠊASPN ฎ⌮ࡋࡓヨᩱ࡛ࡣሁ✚≀ࡢ㝖ཤࢆ┠ⓗ࡟ࠊฎ⌮㠃ࡢࣂࣇ◊☻ࢆ⾜ࡗࡓࠋࡑࡢᚋࠊࣉࣛࢬ࣐ CVD ἲ࡟ࡼࡾ DLC ⭷ࢆᡂ⭷ࡋࡓࠋฎ⌮ࡣ Ar ࣎ࣥࣂ࣮ࢻࢆ 0.6 ks᪋ࡋࠊࡑࡢᚋ SiDLC ᒙࢆ 0.9 ks ⿕そࡋࠊ᭱ᚋ࡟࣓ࢱࣥ(CH4)࢞ࢫ࡛ DLC ࢆฎ⌮ ᗘ 443 Kࠊ㧗࿘Ἴ㟁ຊ 800 W ࡛ 5.4 ks ᡂ⭷ࡋࡓࠋฎ⌮ࢆ᪋ࡋࡓヨᩱ࡟ࡘ࠸࡚ࠊእほほᐹࠊX ⥺ᅇᢡヨ㦂ࠊ⾲㠃ほᐹࠊ᩿㠃⤌⧊ほᐹࠊࣟࢵࢡ࢙࢘ࣝᅽ⑞ヨ㦂ࠊࢫࢡࣛࢵࢳヨ㦂࠾ࡼࡧᦶ᧿࣭ᦶ⪖ヨ㦂ࢆ⾜࠺ࡇ࡜࡟ࡼࡾ✀ࠎࡢᛶ㉁ࢆホ౯ࡋࡓࠋ
3. ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹእほほᐹ࠿ࡽࠊDCPN ฎ⌮ࡉࢀࡓヨᩱ࡛ࡣ࢚ࢵࢪຠᯝࡸ࢔࣮࢟ࣥࢢࡀほᐹࡉࢀࡓࠋ୍᪉ࠊASPNฎ⌮ᮦ࡛ࡣ DCPN ฎ⌮ᮦ࡛ほᐹࡉࢀࡓࡼ࠺࡞࢚ࢵࢪຠᯝࡸ࢔࣮࢟ࣥࢢࡣほᐹࡉࢀࡎࠊᆒ୍࡞ฎ⌮㠃࡛࠶ࡗࡓࠋDLC ᡂ⭷ᚋࡢヨᩱ⾲㠃ࡣ㯮Ⰽࢆ࿊ࡋࡓࠋ
ᮍฎ⌮ᮦ࡜❅໬ᚋࡢヨᩱࡢ X ⥺ᅇᢡヨ㦂ࡢ⤖ᯝࠊ❅໬ฎ⌮ࡉࢀࡓヨᩱ࡛ࡣ࣮࢜ࢫࢸࢼ࢖ࢺ࡬ࡢ
❅⣲ࡢ㐣㣬࿴ᅛ⁐య࡜ࡉࢀࡿ S ┦࠿ࡽࡢᅇᢡ⥺ࡀ᳨ฟࡉࢀࡓࠋࡲࡓ DCPN ฎ⌮࡛ࡣヨᩱࡢ୰ᚰ㒊࡜➃㒊࡛ S ┦ࡢᅇᢡᙉᗘ࡟኱ࡁ࡞ᕪࡀ࠶ࡾࠊࡇࢀࡣ࢚ࢵࢪຠᯝ࡟ࡼࡾ୰ᚰ㒊࡜➃㒊࡛❅໬ࡢ㐍⾜ලྜ࡟ᕪࡀฟࡓࡓࡵ࡜⪃࠼ࡽࢀࡿࠋࡲࡓ ASPN ฎ⌮ᚋࠊሁ✚≀ࢆ◊☻࡟ࡼࡾ㝖ཤࡋࡓヨᩱ࠾ࡼࡧ
ASPN ฎ⌮ࢆ㛗᫬㛫᪋ࡋࡓヨᩱࡢᅇᢡ⥺࡟ࡣ኱ࡁ࡞ኚ໬ࡣぢࡽࢀࡎࠊࡇࢀࡣሁ✚≀ࡀᚤ㔞࡛࠶ࡾ᳨ฟࡉࢀࡿᅇᢡ⥺ࡀᚤᙅ࡛࠶ࡗࡓࡓࡵ࡜⪃࠼ࡽࢀࡿࠋ
᩿㠃⤌⧊ほᐹࡢ⤖ᯝࢆ Fig. 1 ࡟♧ࡍࠋ
ASPN ฎ⌮ᮦࡢ⾲㠃࡟㠀ᖖ࡟ⷧ࠸ሁ✚≀ᒙ࠾ࡼࡧ S ┦ࡀ☜ㄆࡉࢀࡓࠋDCPN ฎ⌮ᮦ࡟࠾࠸࡚ࡶ S ┦ࡀ☜ㄆࡉࢀࡓࡀࠊᆒ୍࡞❅໬ᒙࡣᚓࡽࢀ࡞࠿ࡗࡓࠋASPNฎ⌮ᚋ࡟◊☻ࢆ⾜ࡗࡓヨᩱ࡛ࡣሁ✚≀ᒙࡢ㝖ཤࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊASPN ฎ⌮ࢆ㛗᫬㛫᪋ࡍࡇ࡜࡛ࠊሁ✚≀ᒙ࠾ࡼࡧ S ┦ࡢཌࡉࡀቑຍࡋࡓࠋ

− 229 −

− 230 −䛭䛾ሙほᐹ䛻䜘䜛୰Ⅳ⣲㗰䝷䝇䝬䝹䝔䞁䝃䜲䝖䛾⤌⧊ᙧᡂᶵᵓ䛾ゎ᫂ᓥ᰿኱Ꮫ㻌 ኱Ꮫ㝔⥲ྜ⌮ᕤᏛ◊✲⛉᳃ᡞ㻌 ⱱ୍䠍䠊┠ⓗ㻌 䝷䝇䝬䝹䝔䞁䝃䜲䝖䠄௨ୗ䝷䝇䠩䠅䛿௚䛾⤌⧊䛸ẚ䜉䛶◳ᗘ䜔◳ᗘ䛜㧗䛟䚸䜘䛟◳㉁⤌⧊䛸䛧䛶฼⏝䛥䜜䛶䛔䜛䚹䜎䛯䚸䛣䛾⤌⧊䛿ᙉᗘ䜔◳ᗘ䛰䛡䛷䛺䛟㠎ᛶ䜒ᣢ䛴஦䛛䜙ᶵᲔ⏝ᵓ㐀⏝㗰䜔ᕤල㗰䛾⏕ᆅ⤌⧊䛸䛧䛶䜒฼⏝䛥䜜䛶䛔䜛䚹䝷䝇䠩䛻⌧䜜䜛㠎ᛶ䛿䚸䛣䛾⤌⧊䛾ᵓᡂせ⣲䛷䛒䜛䛂䝟䜿䝑䝖䛃䜔䛂䝤䝻䝑䜽䛃䛸ゝ䛳䛯㝵ᒙ⤌⧊䛻䜘䜚Ⓨ⌧䛩䜛䚹≉䛻Ⅳ⣲㔞䛜
0.4mass%௨ୖ䛾୰䞉㧗Ⅳ⣲䝷䝇䠩䛿ᚤ⣽䛺㝵ᒙ⤌⧊䜢ྵ䜏䚸䛭䜜䛻䜘䜚㧗䛔ᙉᗘ䜢ᣢ䛱䛺䛜䜙㐺ᗘ䛺㠎ᛶ䛜ಖ䛯䜜䛶䛔䜛䚹䛣䛾ᵝ䛺㝵ᒙᵓ㐀䜢ᣢ䛴⤌⧊䛾ᶵᲔⓗ≉ᛶ䛾ไᚚ䛻䛿⤌⧊䛾ไᚚ䛜ᚲせ䛷䛒䜚䚸䛭䛾Ⅽ䛻䛿⤌⧊ᙧᡂ㐣⛬䜢▱䜛䛣䛸䛜㔜せ䛷䛒䜛䚹
㻌 ㏆ᖺపⅣ⣲㗰䝷䝇䠩䛾䛭䛾ሙほᐹ䛜⾜䜟䜜䚸ᡂ㛗㐣⛬䛸⤌⧊䛻ྵ䜎䜜䜛䠩䝷䝇䛾⤖ᬗ᪉఩䛾㛵ಀ䛻䛴䛔䛶ሗ࿌䛥䜜䛯1)䚹䛧䛛䛧ᐇ⏝䛷ከ䛟౑⏝䛥䜜䜛୰Ⅳ⣲㗰䝷䝇䠩䛾⤌⧊ᙧᡂ㐣⛬䜢ゎᯒ䛧䛯ሗ࿌䛿ᑡ䛺䛔䚹䛭䛾Ⅽ⏦ㄳ⪅䛿ᖹᡂ 25 ᖺᗘ䛻㧗 䝺䞊䝄㢧ᚤ㙾䜢౑⏝䛧䛶୰Ⅳ⣲㗰䝷䝇䠩䛾⤌⧊Ⓨ㐩䜢ほᐹ䛧䛯䚹䛣䛾◊✲䛻䜘䜚୰Ⅳ⣲㗰䝷䝇䠩䛿పⅣ⣲㗰䛾䛭䜜䛻㏆䛔⤌⧊ᙧᡂ㐣⛬䜢⤒䜛䛣䛸䛺䛹䛜᫂䜙䛛䛻䛺䛳䛯䚹୍᪉䚸䝷䝇䠩䛾䛭䛾ሙほᐹ䛷䛿⾲㠃䛷䛾ᛂຊ㛤ᨺ䛻䜘䜚䛾⾲㠃ㄏ㉳䝷䝇䠩䛜⌧䜜䚸ヨᩱෆ㒊䛷⏕䛨䜛ᮏ᮶䛾䝷䝇䠩䛸␗䛺䜛䛸䛾ሗ࿌䜒䛒䜚䚸ヨᩱෆ㒊䛷䛾⤌⧊ᙧᡂ䜒⪃៖䛧䛶⪃ᐹ䛩䜛ᚲせ䛜ฟ䛶䛝䛯䚹ᮏ◊✲䛷䛿ヨᩱෆ㒊䛻䛚䛡䜛⤌⧊䛾ᙧᡂ䜢ほᐹ䛧䚸䛭䛾ሙほᐹ⤖ᯝ䛸ྜ䜟䛫䛶⤌⧊ᙧᡂ㐣⛬䜢᫂䜙䛛䛻䛩䜛䛣䛸䜢┠ⓗ䛸䛧䛯䚹䠎䠊ᐇ㦂᪉ἲ㻌 ヨᩱ䛿 Fe௅0.6C௅3Si ௅2Mn(mass%)㗰䜢⏝䛔䛯䚹䛣䛾ヨᩱ䛻ᑐ䛧䜰䝹䝂䞁㞺ᅖẼ୰䛾⅔ෆ䛷1423K, 90h䛷ᆒ୍໬ฎ⌮䜢᪋䛧䛯䚹ᆒ୍໬䛧䛯ヨᩱ䛻䚸1000Υ1.8ks 䛾䜸䞊䝇䝔䝘䜲䝖໬ฎ⌮䜢᪋䛧䚸䛭䛾ᚋ 180䡚220Υ0.6ks 䛾᫬ຠฎ⌮䜢᪋䛧䛯䚹䛣䛾᫬ຠฎ⌮䛻䜘䜚ྛ ᗘ䛷⏕ᡂ䛧䛯䝷䝇䠩䛜↝䜒䛹䛥䜜䚸⭉㣗䛻䜘䜚ุู䛷䛝䜛䜘䛖䛻䛺䜛 2)䚹᫬ຠฎ⌮ᚋ䛻ヨᩱ䜢Ỉ୰䛻↝ධ䜜䛯䚹㻌 ゎᯒ䛻䛿ගᏛ㢧ᚤ㙾䛻䜘䜛ほᐹ䛸ྠ୍⟠ᡤ䛾㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾䠋ᚋ᪉ᩓ஘㟁Ꮚ⥺ᅇᢡ䠄SEM/EBSD䠅 ᐃ䜢⾜䛔䚸䛣䜜䛻䜘䜚ᚓ䜙䜜䛯⤖ᬗ᪉఩䝕䞊䝍䛛䜙䜸䞊䝇䝔䝘䜲䝖䛾⤖ᬗ᪉఩䛸䛭䛾⢏⏺䛚䜘䜃↝䜒䛹䛥䜜䛯䝷䝇䠩䛾⤖ᬗ᪉఩䜢ྠᐃ䛧䛯䚹䜸䞊䝇䝔䝘䜲䝖䛾⤖ᬗ᪉఩䛸䝷䝇䠩䛻䛚䛡䜛⤌⧊䛾ྠᐃ䛻䛿䚸䠩䛾⤖ᬗ᪉఩䛛䜙䜸䞊䝇䝔䝘䜲䝖䛸䠩䛾䝞䝸䜰䞁䝖䜢ᐃ㔞ⓗ䛻ゎᯒ䛩䜛䝋䝣䝖䜴䜵䜰䜢౑⏝䛧䛯 3)䚹
䠏䠊⤖ᯝ㻌 Fig. 1(a)䛻 220Υ࡛᫬ຠฎ⌮ࢆ᪋ࡋࡓヨᩱࡢගᏛ㢧ᚤ㙾ീࢆ♧ࡍࠋࡲࡓ Fig. 1(b)࡟ࡣ⳥ụᅗᙧ㩭᫂ᗘ㸦IQ ್㸧ࢆࢢ࣮ࣞࢫࢣ࡛ࣝ⾲グࡋࡓ⤖ᬗ᪉఩ᅗ䜢♧䛩䚹Fig. 1(a)䜢ぢ䜛䛸䚸䝷䝇䠩⏕ᡂึᮇ䛿పⅣ⣲䝷䝇䠩䛸ྠ䛨䜘䛖䛻䜸䞊䝇䝔䝘䜲䝖⢏⏺䛛䜙䠩䛜⏕䛨䛶䛔䜛䛣䛸䛜ศ䛛䜛䚹䛣䛾䠩䛻ᑐᛂ䛩䜛㡿ᇦ䜢⤖ᬗ᪉఩ᅗ䛷ぢ䛶䜏䜛䛸䚸䜋䜌༢୍⤖ᬗ᪉఩䜢ᣢ䛱 IQ್䜒㧗䛔஦䛜ศ䛛䜛䚹䛣䛾ᵝ䛺⢒኱䛺䠩䛿䛭䛾ሙほᐹ䛷䛿ぢ䜙䜜䛺䛛䛳䛯䛜䚸䜸䞊䝇䝔䝘䜲䝖ᇦ䛛䜙↝ධ䜜䛯ヨᩱ䛰䛡䛷䛺䛟௚䛾㧗Ⅳ⣲㗰䛷䜒ほᐹ䛥䜜䛶䛔䜛䚹୍᪉䛷䜸䞊䝇䝔䝘䜲䝖⢏⏺䛛䜙⢏ෆ᪉ྥ䛻ᡂ㛗䛧䛶䛔䜛ᯈ≧䛾䠩䜒ほᐹ䛥䜜䛶䛔䜛䚹䛣䜜䜙䛾ᯈ≧䛾䠩䛿పⅣ⣲㗰䝷䝇䠩䛸ྠ䛨䛟䝃䝤䝤䝻䝑䜽䜢ྵ䜐䝤䝻䝑䜽䛷䛒䛳䛯䚹䜎䛯䚸ᑡᩘ࡛ࡣ࠶ࡿࡀ࣮࢜ࢫࢸࢼ
࢖ࢺ㸫㹋⏺㠃࠿ࡽࡢูࣃࢣࢵࢺ࡟ᒓࡍࡿ㹋ࡢ⏕ᡂࡶぢࡽࢀ࡚࠸ࡿࠋ௚࡟ࡶ⢏ෆ䛻Ꮡᅾ䛧䛶䛔䜛䠩䜒ぢ䜙䜜䜛䛜䚸䛣䜜䛿௒䜎䛷䛾୕ḟඖほᐹ⤖ᯝ䛛䜙୕ḟඖⓗ䛻䛿⢏⏺䛸᥋䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹㻌 Fig. 2(a)䛸(b)䛿 210Υ࡛᫬ຠฎ⌮ࢆ᪋ࡋࡓヨᩱࡢගᏛ㢧ᚤ㙾ീ࡜⤖ᬗ᪉఩ᅗ࡛࠶ࡿࠋࡇࢀࡽࡢᅗࢆぢࡿ࡜ࠊ220Υ᫬ຠᮦ࡜ྠࡌࡼ࠺࡟ᯈ≧ࡢ㹋ࡀᏑᅾࡋࠊᵝࠎ࡞᪉ྥ࡟ఙࡧ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋࡋ࠿ࡋࠊ220Υ᫬ຠᮦ࡜␗࡞ࡾࠊ
ࡇࢀࡽࡢᯈ≧ࡢ㹋ࡣࢧࣈࣈࣟࢵࢡࢆྵࡴࣈࣟࢵࢡ࡛ࡣ࡞ࡃࠊ஫࠸࡟཮ᬗ㛵ಀ࡟࠶ࡿ஧✀㢮ࡢࣈࣟࢵࢡ࡛ᵓᡂࡉࢀ࡚
࠸ࡿሙྜࡀከ࠸ࠋ↝ධࢀᮦࡸࡉࡽ࡟ప ࡛᫬ຠࡋࡓヨᩱࢆほᐹࡍࡿ࡜ࡇࡢᵝ࡞⤌⧊ࡀከࡃほᐹࡉࢀ࡚࠸ࡿࠋࡇࡢ஦
࠿ࡽࠊ᭱ึᮇ࡟ࡣࢧࣈࣈࣟࢵࢡࢆྵࡴࣈࣟࢵࢡࡀᯈ≧࡟⏕ᡂࡍࡿࡀࠊ⤌⧊ᙧᡂࡀ㐍ࡴ࡜ኚែᛂຊ⦆࿴ࡢࡓࡵ࡟஫࠸
࡟཮ᬗ㛵ಀ࡟࠶ࡿࣈࣟࢵࢡࡀ⤌ࡳྜࢃࡉࡾ࡞ࡀࡽ⤌⧊ࡀᙧᡂࡉࢀࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿࠋࡲࡓࠊᯈ≧ࡢࣈࣟࢵࢡࡢཌ
ࡉࡣ᫬ຠ ᗘ࡟౫Ꮡࡋ࡚࠾ࡽࡎࠊࣈࣟࢵࢡࡣཌࡉ᪉ྥ࡟ᡂ㛗ࡋ࡞࠸࡜⪃࠼ࡽࢀࡿࠋ ࣛࢫ㹋⏕ᡂ୰ᮇ࡛ࡣࠊ㹋ࡣ࣮࢜ࢫࢸࢼ࢖ࢺ㸫㹋⏺㠃࠿ࡽ⌧ࢀ࡚࠸ࡓࠋࡋ࠿ࡋࠊపⅣ⣲㗰࡛ࡣྠ୍ࣃࢣࢵࢺ࡟ᒓࡍ

− 231 −

ࡿ㹋ࡀከࡃ⌧ࢀ⢒኱࡞ࣃࢣࢵࢺࢆᵓᡂࡋ࡚࠸ࡿࡢ࡟ᑐࡋࠊ
ࡇࡢヨᩱ࡛ࡣ஫࠸࡟ูࣃࢣࢵࢺ࡟ᒓࡍࡿ㹋ྠኈࡢ᥋⥆ࡀከࡃぢࡽࢀࡓࠋࡲࡓࠊ᥋⥆ࡋ࡚࠸ࡿ㹋ྠኈࡣ⤖ᬗ᪉఩ࡀ㏆࠸ྠ୍࣋࢖ࣥࢢ࣮ࣝࣉ࡟ᒓࡋ࡚ࡣ࠸ࡿࡀࠊపⅣ⣲㗰ࣛࢫ㹋࡛ぢࡽࢀࡓ⤖ᬗ᪉఩㛵ಀ࡜ࡣ␗࡞ࡿ㛵ಀࢆᣢࡘࢣ࣮ࢫࡀከࡃほᐹࡉࢀࡓࠋ

Fig. 1 (a) Optical micrograph and (b) orientation image map with gray-scaled image quality of Kikuchi patterns instep-quenched specimen at 220 degrees Celsius. Color in Fig. 1(b) indicates crystal direction perpendicular to the sheet.

Fig. 2 (a) Optical micrograph and (b) orientation image map with gray-scaled image quality of Kikuchi patterns instep-quenched specimen at 210 degrees Celsius. Color in Fig. 1(b) indicates crystal direction perpendicular to the sheet.
䠐䠊⤖ㄽ㻌 ௨ୖ䛾⤖ᯝ䛛䜙䚸୰Ⅳ⣲㗰䝷䝇䠩䜒పⅣ⣲㗰䝷䝇䠩䛸ྠ䛨䜘䛖䛻䜸䞊䝇䝔䝘䜲䝖⢏⏺䛛䜙ึᮇ䛾䠩䛜⏕ᡂ䛩䜛䛣䛸䛜♧䛥䜜䚸䛭䜜䛜⢏⏺䛻Ꮡᅾ䛧䛶䛔䜛⢒኱䛺䠩䛷䛒䜛஦䛜♧䛥䜜䛯䚹䜎䛯䚸䝷䝇䠩䛿ᯈ≧䛻ᡂ㛗䛩䜛䛜䚸పⅣ⣲㗰䛾ሙྜ䛸␗䛺䜚䚸཮ᬗ㛵ಀ䛻䛒䜛䝞䝸䜰䞁䝖䛸䛾⤌䜏ྜ䜟䛫䛸䛺䛳䛶䛚䜚䚸䝤䝻䝑䜽䛜ཌ䜏᪉ྥ䛻ᡂ㛗䛧䛺䛔஦䛜᫂䜙䛛䛻䛺䛳䛯䚹䠑䠊ཧ⪃ᩥ⊩
1) S. Zhang, S. Morito, Y. Komizo, ISIJ Int., 52 (2012), 510-515.
2) A.B. Greninger, A.R. Troiano, Trans. ASM, 28 (1940), 537-574.
3) A.H. Pham, T. Ohba, S. Morito, T. Hayashi, Mater. Trans., 54 (2013), 1396-1402.
䠄ඹྠ◊✲ศ㔝䠖ಙ㢗ᛶホ౯䞉ண 䝅䝇䝔䝮Ꮫศ㔝䠅− 232 −

࢔࣑ࣝࢽ࣒࢘ྜ㔠࡜࣐ࢢࢿࢩ࣒࢘ྜ㔠ࡢ㘫᥋⏺㠃ࡢᵓ㐀ゎᯒᐩᒣ┴ᕤᴗᢏ⾡ࢭࣥࢱ࣮
ᒣᓊⱥᶞ
1. ┠ⓗ
  ㍺㏦ᶵჾ➼࡟࠾ࡅࡿ㍍㔞㧗ᶵ⬟⣲ᮦά⏝ࡢほⅬ࠿ࡽࠊ࢔࣑ࣝࢽ࣒࢘ྜ㔠࡜࣐ࢢࢿࢩ࣒࢘ྜ㔠ࢆ᥋ྜࡍࡿ

ᢏ⾡ࡀᮃࡲࢀ࡚࠸ࡿ㸦࣐ࣝࢳ࣐ࢸࣜ࢔ࣝ໬ᢏ⾡㸧ࠋࡇࢀࡲ࡛ࡶᙜヱ␗ᮦ᥋ྜ࡟ࡣࠊᣑᩓ᥋ྜ [1]ࡸᦶ᧿᧠ᢾ᥋
ྜ㸦FSW㸧 [2]➼ࢆ⏝࠸ࡓᢏ⾡㛤Ⓨࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࡇࢀࡽᚑ᮶ࡢ᥋ྜᡭἲ࡟࠾࠸࡚ࡣࠊῶ
ᅽ➼ࡢ⎔ቃࡀᚲせ࡞ࡇ࡜ࠊ᥋ྜຍᕤ࡟᫬㛫ࢆせࡍࡇ࡜ࠊࡲࡓࡑࡢ㐺⏝᮲௳ࠊ౛࠼ࡤⅬࡸ⥺᥋ྜ࡟㝈ࡽࢀࡿࡇ࡜࡞࡝ࠊᐇ⏝࡟౪ࡍࡿ㝿࡟୙㒔ྜ࡞Ⅼࡶぢཷࡅࡽࢀࡿࠋ
ᮏ◊✲࡛ࡣࠊ኱Ẽ୰ࡢ▷᫬㛫ࣉࣟࢭࢫ࡟࠾࠸࡚ࠊ㧗ᙉᗘ࡞㠃᥋ྜࢆྍ⬟࡜ࡍࡿᐇ⏕⏘ⓗ࡞ᢏ⾡㛤Ⓨࢆ┠ⓗ࡜ࡋ࡚ࠊ኱ᆺࣉࣞࢫᶵ㸦9000 ࢺࣥ㸧ࢆ⏝࠸ࡓᐇ〇ရࢧ࢖ࢬࢆぢᤣ࠼ࡓ㘫᥋᪉ἲࢆヨࡳࠊࡑࡢᙉᗘཬࡧ᥋ྜ⏺
㠃ࡢᵓ㐀࡟ࡘ࠸࡚ㄪᰝࡋࡓࠋ
2. ◊✲᪉ἲ ẕᮦࢆ AZ80 ࡜ A6151 ࡶࡋࡃࡣ A2017 ࡢ㗪㐀ࣅࣞࢵࢺ࡜ࡋࠊᆺ㘫㐀࡟ࡼࡿ᥋ྜຍᕤࢆᐇ᪋ࡋࡓ㸦ᡂᆺᑍἲ㸸ࠋ࢖ࣥࢧ࣮ࢺᮦࢆ⏝࠸࡞࠸┤᥋᥋ྜࡢ࡯࠿ࠊ࢖ࣥࢧ࣮ࢺᮦ࡟⣧ Cuࠊ⣧ Ni ཬࡧ⣧ Ti ࢆ⏝࠸ࡓሙ
ȭ335140mm㸧
ྜࡢ᥋ྜᙉᗘ࡟ཬࡰࡍᙳ㡪ࢆࠊࣂ࣮ࢼ࣮⅔࡟ࡼࡿண⇕ ᗘ㸦㞺ᅖẼ ᗘ㸧ཬࡧຍᕤᅽຊࢆࡑࢀࡒࢀ 250㹼480Υཬࡧ 100㹼750MPa ࡲ࡛ኚ໬ࡉࡏホ౯ࡋࡓ [3]ࠋ࡞࠾ࠊண⇕ಖᣢ᫬㛫ཬࡧ᥋ྜಖᣢ᫬㛫ࡣࠊࡑࢀࡒࢀ 90 ศ㛫ཬࡧ 20⛊࡜ࡋࠊ⏺㠃ཬࡧ᥋ྜ㒊ᮦࡢ≉ᛶࡣࠊᘬᙇヨ㦂ࠊSEM/EDS ศᯒཬࡧ FIB-STEM/EDS ศᯒ࡟ࡼࡾᐇ᪋ࡋࡓࠋホ౯ᮦࡣ᥋ྜ㒊ᮦ୰ኸ㏆ഐ࠿ࡽ᥇ྲྀࡋࡓࠋ
㻌

3. ⤖ᯝ

㻞㻜㻜

Fig.㸯࡟ྛ᥋ྜᮦᩱ࡟࠾ࡅࡿ᭱኱ᘬᙇᙉࡉ࠾ࡼࡧࡑࡢ
㧗Ⲵ㔜㈇Ⲵࡢᮏ᥋ྜࣉࣟࢭࢫ࡟ࡼࡾࠊ┤᥋᥋ྜ࡟࠾࠸
࡚ࡶࡑࡢᘬᙇᙉࡉࡣ࢖ࣥࢧ࣮ࢺᮦࢆ⏝࠸ࡓ୍⯡ⓗ࡞ᣑᩓ᥋ྜ(㹼25 MPa [1])ࢆୖᅇࡗࡓ㸦56 MPa㸧ࠋFig. 2 ࡟ࡑࡢ᥋ྜ⏺㠃 SEM ീࢆ♧ࡍࠋረᛶὶື⏺㠃ࡢᙧᡂ࡜࡜ࡶ
࡟ࠊ⬤ᙅ࡞㔠ᒓ㛫໬ྜ≀㸦Al3Mg2 ཬࡧ Al12Mg17㸧ࡀཌࡳ⣙ 30ȣm ᙧᡂࡉࢀࠊ
࣡ࣞࡸ࣎࢖ࢻࡀᩘከࡃぢࡽࢀࡓࠋ◚㠃ࡣ࣎࢖ࢻࡀከࡃ⏕ࡌࡓ Al3Mg2 ┦࡛࠶ࡗࡓࠋ

㼀㼑㼚㼟㼕㼘㼑㻌㼟㼠㼞㼑㼚㼓㼠㼔㻘㻌V㻮㻌㻛㻹㻼㼍᥋ྜຍᕤ᮲௳ࢆ♧ࡍࠋ㻝㻢㻜ࡒࢀ᭱኱ᘬᙇᙉࡉࡀ 100 MPa ཬࡧ 119 MPa ࡜࡞ࡗࡓࠋ
ࡇࢀࡽࡢ᥋ྜ⏺㠃࡛ࡣࠊ┤᥋᥋ྜࡢሙྜ࡜ࡣ␗࡞ࡾȣmࢫࢣ࣮ࣝཌࡢ㔠ᒓ㛫໬ྜ≀ࡣ⏕ᡂࡉࢀ࡚࠸࡞࠿ࡗࡓࠋࡲ

㻝㻢㻟

㻝㻡㻝

㻝㻠㻜
㼀㼕

㻝㻝㻥

㻝㻞㻜

㻭㼆㻤㻜
㼎㼕㼘㼘㼑㼠

㻝㻜㻜

㻝㻜㻜
㻤㻜

㻯㼡

㻺㼕

㻡㻢

㻢㻜
㻠㻜

㻰㼕㼞㼑㼏㼠

㻞㻜㻜 㻮㼛㼚㼐㼕㼚㼓 ࢖ࣥࢧ࣮ࢺᮦ࡟⣧ Cu ཬࡧ⣧ Ni ࢆ⏝࠸ࡓሙྜࡣࠊࡑࢀ

㻭㼆㻤㻜㻌㻗㻭㻞㻜㻝㻣

㻭㼆㻤㻜㻌㻗㻭㻢㻝㻡㻝

㻝㻤㻜㼜㼞㼑㼟㼟㼡㼞㼑 㻣㻜㻜㻹㻼㼍㻼㼞㼑㼔㼑㼍㼠 㻠㻤㻜䉝㼠㼑㼙㼜㻚㼡㼟㼕㼚㼓㻌㼕㼚㼠㼑㼞㼘㼍㼥㼑㼞㻣㻡㻜㻹㻼㼍
㻟㻡㻜䉝㻌㻣㻡㻜㻹㻼㼍
㻟㻜㻜䉝㻞㻜㻜㻹㻼㼍
㻟㻜㻜䉝㼍㼟㻌㼏㼍㼟㼠

Fig. 1 Tensile strength of the Mg-Al bonding joints and AZ80 basemetal.
AZ80

Al12Mg17

ࡓ࠸ࡎࢀࡶ࠶ࡿ⛬ᗘࡢረᛶὶື⏺㠃ࢆᙧᡂࡋ࡚࠸ࡓࠋ◚㠃ࡣ㧗 ࣭㧗ᅽࡢຍᕤ᮲௳࡟࡞ࡿ࡟ᚑ࠸ࠊ࢖ࣥࢧ࣮ࢺᮦ
ࡀ⣧ Cu ࡛ࡣࠊMg ྜ㔠ഃ࠿ࡽ Al ྜ㔠ഃ࡬ࠊࡲࡓ࢖ࣥࢧ
࣮ࢺᮦࡀ⣧ Ni ࡛ࡣࠊAl ྜ㔠ഃ࠿ࡽ Mg ྜ㔠ഃ࡟㑄⛣ࡋࡓࠋࡑࢀࡒࢀࡢ⏺㠃࡟࠾ࡅࡿ⬤ᙅ࡞㔠ᒓ㛫໬ྜ≀ࡢᡂ㛗

Al3Mg2A6151

50ʅm

Fig. 2 SEM imagesof the bonded interface of direct bonding.

࡟ᙳ㡪ࢆཷࡅࡓᣲື࡜ᛮࢃࢀࡿࠋ

− 233 −

୍᪉ࠊ࢖ࣥࢧ࣮ࢺᮦ࡟⣧ Ti ࢆ⏝࠸ࡓሙྜࡣࠊᘬᙇᙉࡉࡀⴭࡋࡃྥୖࡋ㸦151 MPa㸧ࠊ᭱኱⥅ᡭຠ⋡ࡣࠊAZ80
㗪㐀ࣅࣞࢵࢺ࡟ᑐࡋ࡚⣙ 93 㸣࡟㐩ࡋࡓࠋࡑࡢຍᕤ᮲௳ࡣ௚࡜ẚ㍑ࡋప ࣭పᅽ࡛ࠊ᭱ࡶ┬࢚ࢿࣝࢠ࣮࡜࡞
ࡗࡓࠋ⏺㠃࡟ࡣࠊ௚࢖ࣥࢧ࣮ࢺ࡜ྠᵝ࡟ȣm ࢫࢣ࣮ࣝࡢ཯ᛂᒙ(RL)ࡣㄆࡵࡽࢀࡎࠊࡲࡓ◚㠃ࡣࠊ࠸ࡎࢀࡢ᥋
ྜຍᕤ᮲௳࡟࠾࠸࡚ࡶ Mg ྜ㔠ഃࡢ᥋ྜ⏺㠃࡛࠶ࡗࡓࠋ࡞࠾ࠊAl ྜ㔠࡟ A6151 ࢆ౪ࡋࡓሙྜ࡛ࡣẕᮦ◚᩿࡜࡞ࡗࡓࡓࡵࠊᮏヨ㦂࡛ࡣ A2017 ࢆ⏝࠸ࠊ᥋ྜᚋ࡟㐺ᙜ࡞⇕ฎ⌮ࢆ᪋ࡋ࡚࠸ࡿࠋ
ࡇࢀࡽ 3 ✀ࡢ࢖ࣥࢧ࣮ࢺᮦࢆ⏝࠸ࡓ 6 ࡘࡢ᥋ྜ⏺㠃ࡢ TEM ᫂ど㔝ീࢆ Fig.3 ࡟♧ࡍࠋ࠸ࡎࢀࡶⷧ࠸཯ᛂ
ᒙࡀᙧᡂࡉࢀ࡚࠾ࡾࠊ≉࡟ࠊ᭱㧗ᙉᗘࢆ♧ࡋࡓ⣧ Ti ࢖ࣥࢧ࣮ࢺᮦࡣ᭱ࡶ཯ᛂᒙࡀⷧࡃ㸦◚ቯ⏺㠃࡜࡞ࡿ Mg
ྜ㔠ഃ࡟࠾࠸࡚ᴫࡡ 20㹼60nm㸧ࠊࡲࡓ㓟໬ࡢᙳ㡪ࡀ୍␒ᑠࡉ࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋSTEM-EDS ศᯒࡼࡾࠊࡇ
ࡢ⣧ Ti ࢖ࣥࢧ࣮ࢺᮦࡢ Mg ྜ㔠ഃࡢ཯ᛂᒙ࡟ࡣࠊAZ80 ẕᮦ࡟ẚ࡭ Al ࡀⴭࡋࡃ⃰໬ࡋࡓᩘ༑ nm ཌࡢ Ti㸫
Al ⣔㔠ᒓ㛫໬ྜ≀ᒙࡀᙧᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡍ࡞ࢃࡕࠊ᥋ྜᶵᵓ࡜ࡋ࡚ࠊMg ࡜ Ti ࡣ┦஫⁐ゎᗘࡀᴟࡵ࡚ᑠࡉ࠸ࡀࠊAZ80 ୰ࡢ Al ࡜ Ti ࡜ࡢ཯ᛂ࡟ࡼࡾࠊⰋዲ࡟᥋ྜࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋ
ࡇࢀࡽྛ✀࢖ࣥࢧ࣮ࢺᮦࢆ⏝࠸ࡓ᥋ྜ࡛ࡣࠊ⬤ᙅ࡞㔠ᒓ㛫໬ྜ≀ࡢ⏕ᡂࢆᢚไࡋ࡞ࡀࡽࠊረᛶὶື⏺㠃ᙧᡂ࡟ࡼࡿ࢔࣮ࣥ࢝ຠᯝ࡜࡜ࡶ࡟᥋ྜ㠃✚ࡢቑຍࡢຠᯝࡶᚓࡽࢀࡓࡇ࡜ࡀࠊ▷᫬㛫ࡢ኱Ẽ୰ຍᕤࣉࣟࢭࢫ࡛࠶
ࡾ࡞ࡀࡽࠊẚ㍑ⓗ㧗ᙉᗘ࡞᥋ྜ⏺㠃ࢆᚓࡓせᅉ࡜⪃࠼ࡽࢀࡿࠋ≉࡟ᙉᗘࠊ⪏㣗ᛶཬࡧຍᕤ᮲௳࡟ඃࢀࡿ⣧ Ti࢖ࣥࢧ࣮ࢺᮦ࡟ࡘ࠸࡚ࡣࠊAl-Mg ᥋ྜࡔࡅ࡛࡞ࡃ Mg ྜ㔠ࡢ⾲㠃ᨵ㉁ࣉࣟࢭࢫ࡜ࡋ࡚ࡶᮇᚅ࡛ࡁࡿࠋ
㼕㼚㼟㼑㼞㼠㻯㼡㻺㼕㼀㼕㼠㼑㼚㼟㼕㼘㼑㻌㼟㼠㼞㼑㼚㼓㼠㼔㻔㼒㼞㼍㼏㼠㼡㼞㼑㼟㼡㼞㼒㼍㼏㼑㻕

㻝㻜㻜㻌㻹㻼㼍
䠄㻹㼓㻌㼍㼘㼘㼛㼥㻌㼟㼕㼐㼑䠅㻝㻝㻥㻌㻹㻼㼍
䠄㻹㼓㻌㼍㼘㼘㼛㼥㻌㼟㼕㼐㼑䠅㻝㻡㻝㻌㻹㻼㼍
䠄㻹㼓㻌㼍㼘㼘㼛㼥㻌㼟㼕㼐㼑䠅

AZ80

AZ80

AZ80

Cu

Ni

Ti

㻿㻱㻹㻌㼕㼙㼍㼓㼑

TEMほᐹ

A6151

A6151
100ʅm

㻹㼓㻌㼍㼘㼘㼛㼥㻌㼟㼕㼐㼑

100ʅm

A2017

AZ80

AZ80

AZ80

RL
RL
Cu

RL

Ti

Ni

2 ʅm

100 nmCu

㻭㼘㻌㼍㼘㼘㼛㼥㻌㼟㼕㼐㼑㼀㻱㻹㻌㻮㻲㻌㼕㼙㼍㼓㼑

100ʅm

100 nm

Ti

Ni

RL

RL

RL
A6151

1 ʅm

A6151

A2017
100 nm

100 nmFig. 3 TEM bright field (BF) images of bonded interface, using pure Cu, pure Ni and pure Ti inserts.

 4. ཧ⪃ᩥ⊩㼇㻝㼉㻌 ᖹ▼䚸▼ᕝ䚸⏣ᐑ䠖᪂₲┴ᕤᴗᢏ⾡◊✲ሗ࿌᭩㻘㻌㻟㻟㻔㻞㻜㻜㻠㻕㻠㻥㻚㻌㼇㻞㼉㻌 㻺㻚㻌㼅㼍㼙㼍㼙㼛㼠㼛㻌㼑㼠㻌㼍㼘㻚㻦㻹㼍㼠㼑㼞㻚㻌㼀㼞㼍㼚㼟㻚㻘㻔㻞㻜㻜㻥㻕㻞㻤㻟㻟㻚㻌 㻌 㻌㼇㻟㼉㻌 ᒣᓊ௚㻦⁐᥋Ꮫ఍⛅Ꮨ඲ᅜ኱఍ㅮ₇ᴫせ㻘㻌㻥㻡㻔㻞㻜㻝㻠㻕㻞㻣㻢㻚㻌㸦ඹྠ◊✲ศ㔝㸸ಙ㢗ᛶホ౯࣭ண ࢩࢫࢸ࣒Ꮫศ㔝㸧− 234 −

㖟⣔ࣇ࢕࣮ࣛࢆ฼⏝ࡋࡓᑟ㟁ᛶ᥋╔๣ࡢ㟁Ẽఏᑟ≉ᛶ࡟ཬࡰࡍ໬ᏛⓗᅉᏊࡢᙳ㡪⩌㤿኱Ꮫ ඛ➃⛉Ꮫ◊✲ᣦᑟ⪅⫱ᡂࣘࢽࢵࢺ஭ୖ 㞞༤
1. ┠ⓗᑟ㟁ᛶ᥋╔๣ࡣ㸪᭷ᶵ㧗ศᏊࣂ࢖ࣥࢲ୰࡟ Ag ࡞࡝ࡢᑟ㟁ࣇ࢕࣮ࣛࢆศᩓࡉࡏࡿࡇ࡜࡛㟁Ẽఏᑟ≉ᛶࢆ௜୚ࡋ
ࡓ᥋╔๣࡛࠶ࡿ㸬㏆ᖺ㸪࢚ࣞࢡࢺࣟࢽࢡࢫᶵჾ࡛ࡣ㸪ࡣࢇࡔ࡛ᑐᛂ࡛ࡁ࡞࠸᥋ྜ㒊ࡀ⌧ࢀጞࡵ㸪ᑟ㟁ᛶ᥋╔๣࡟ᑐࡍࡿᮇᚅࡀ㧗ࡲࡗ࡚ࡁ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪㧗ಙ㢗ᛶࡢᑟ㟁ᛶ᥋╔๣᥋⥆ࢆᐇ⌧ࡍࡿࡓࡵ࡟ࡣᇶ♏ⓗ࡞◊✲ㄢ㢟ࡀᒣ✚ࡋ࡚࠸ࡿ≧ἣ࡟࠶ࡾ㸪⏘ᴗᛂ⏝ᣑ኱ࡢጉࡆ࡟࡞ࡗ࡚࠸ࡿ㸬౛࠼ࡤ㸪ᑟ㟁ᛶ᥋╔๣࡟࠾ࡅࡿᑟ㟁ᛶⓎ⌧࣓࢝ࢽࢬ࣒ࡣṇ☜࡟ࡣ᫂ࡽ࠿࡟ࡉࢀ࡚࠾ࡽࡎ㸪ㄽ⌮ⓗ࡞ᮦᩱタィᣦ㔪ࡀ࡞࠸ࡲࡲ〇ရ㛤Ⓨࡀ㐍ࡵࡽࢀ࡚࠸ࡿ㸬ᑟ㟁ᛶ᥋╔๣࡛ࡣ㸪ᑟ㟁ࣇ࢕࣮ࣛ࡟ࡼࡗ࡚ᙧᡂࡉࢀࡿࣇ࢕࣮ࣛࢿࢵࢺ࣮࣡ࢡ㸦ࣃ࣮ࢥ࣮ࣞࢩࣙࣥࢿࢵࢺ࣮࣡ࢡ㸧ࡀᑟ㟁ࣃࢫ࡜࡞ࡗ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࡀ㸪ࣇ࢕࣮ࣛ㛫⏺㠃࡟࠾ࡅࡿ⤯⦕ࣂࣜ࢔ࢆ௓ࡋࡓ㟁Ⲵ⛣ື࣓࢝ࢽࢬ࣒࡟ࡘ࠸࡚ࡣ㸪⤯⦕◚ቯ㸪࣍ࢵࣆࣥࢢ㸪ࢺࣥࢿࣜࣥࢢ࡞࡝ࡢࣔࢹࣝࡀᥦၐࡉࢀ࡚࠸ࡿࡶࡢࡢ㸪ᐇែࡣ୙࡛᫂࠶ࡿ㸬ᚑ᮶ࡢࣇ࢕࣮ࣛ㛫⏺㠃࡛ࡢ㟁Ⲵ⛣ືࣔࢹࣝ࡟ࡼࢀࡤ⤯⦕ࢠࣕࢵࣉཌࡉ࡟ࡼࡗ࡚⏺㠃㟁Ẽ᢬ᢠࡀᨭ㓄ࡉࢀࡿࡇ࡜
࡟࡞ࡿࡓࡵ㸪
ࣂ࢖ࣥࢲࡢ◳໬཰⦰࡟ࡼࡗ࡚ࢠࣕࢵࣉཌࡉࡀῶᑡࡍࡿࡇ࡜ࡀᑟ㟁ᛶⓎ⌧ࡢཎᅉ࡛࠶ࡿ࡜⪃࠼ࡽࢀ࡚ࡁ
ࡓ㸬ࡋ࠿ࡋ㸪᭱㏆㸪ᡃࠎࡢ◊✲ᡂᯝ࡟ࡼࡾ㸪ᑟ㟁ᛶ᥋╔๣ࡢయ✚཰⦰⋡࡜㟁Ẽ᢬ᢠ⋡ࡢ㛫࡟ࡣ᫂☜࡞┦㛵㛵ಀࡀ࡞࠸ࡇ࡜ࡀ᫂☜࡟࡞ࡾ㸪◳໬㐣⛬࡛ࡢᑟ㟁ᛶⓎ⌧ᣲືࢆ෌᳨ドࡍࡿᚲせࡀฟ࡚ࡁࡓ㸬ᮏ◊✲࡛ࡣ㸪ᑟ㟁ᛶ᥋╔๣ࡢ㟁Ẽఏᑟ≉ᛶ࡟ཬࡰࡍࣂ࢖ࣥࢲ㓄ྜ⤌ᡂࡢᙳ㡪ࢆㄪ࡭ࡓ㸬
2. ◊✲᪉ἲ
2-1 ᑟ㟁ᛶ᥋╔๣ࢧࣥࣉࣝ
4,4’-࣓ࢳࣞࣥࣅࢫ(N,N-ࢪࢢࣜࢩࢪࣝ࢔ࢽࣜࣥ)࡟࢖࣑ࢲࢰ࣮ࣝ⣔ゐ፹㸦5wt%㸧ࢆῧຍࡋࡓࡶࡢ࡜㸪໬Ꮫ㔞ㄽ⤌ᡂࡢ㓟↓Ỉ≀ࢆΰྜࡋࡓ 2 ✀㢮ࡢࣂ࢖ࣥࢲࢆㄪᩚࡋࡓ㸬ࡇࢀࡽࡢࣂ࢖ࣥࢲ࡟ Ag Ỉ࢔ࢺ࣐࢖ࢬ⢊㸦ᖹᆒ⢏ᚄ 2.5Pm㸧ࢆῧຍࡋ㸪ࣈࢳࣝ࢝ࣝࣅࢺ࣮࡛ࣝ⢓ᗘㄪᩚࢆ⾜࠸࡞ࡀࡽ㐟ᫍᆺ࣑࢟ࢧ࡛᧠ᢾࢆ⾜࠸㸪ᑟ㟁ᛶ᥋╔๣࣮࣌ࢫࢺࢆᚓࡓ㸬ࡲࡓ㸪୍㒊ࡢࢧࣥࣉࣝ࡟ࡘ࠸࡚ࡣ㸪࣮࣌ࢫࢺㄪᩚ᫬࡟ࣇ࢙ࢽࣝࢢࣜࢩࢪ࢚࣮ࣝࢸࣝࢆ཯ᛂᛶᕼ㔘๣࡜ࡋ࡚ῧຍࡋࡓ㸬
2-2 ࢟ࣗ࢔ᚋࡢᑟ㟁ᛶ᥋╔๣ࢧࣥࣉࣝࡢホ౯
2-1 ࡟♧ࡋࡓ᪉ἲ࡛ㄪᩚࡋࡓᑟ㟁ᛶ᥋╔๣ࢆ࢞ࣛࢫᇶᯈୖ
࡟༳ๅሬᕸࡋ㸪150 °C ࡢ 㢼ࢳࣕࣥࣂ࣮୰࡛࢟ࣗ࢔ࡋࡓ㸬࢟ࣗ࢔᫬㛫ࡣ 1㹼50 h ࡢ⠊ᅖ࡛ኚ໬ࡉࡏࡓ㸬࢟ࣗ࢔ᚋࡢࢧࣥࣉ
ࣝࡢ㟁Ẽ᢬ᢠ⋡ࢆᅄ᥈㔪ἲ࡟ࡼࡾ ᐃࡋࡓ㸬ࡲࡓ㸪ࢧࣥࣉࣝࡢ᩿㠃⤌⧊ࢆ FE-SEM ࡟ࡼࡾほᐹࡋ㸪3mm30Pm ࡢ㡿ᇦ࡟Ꮡᅾࡍࡿࣇ࢕࣮ࣛࡢศᩓ≧ែࢆ⏬ീゎᯒ࡟ࡼࡾ⤫ィⓗ࡟ホ౯ࡋࡓ㸬
2-3 ⢓ᙎᛶ≉ᛶ㸫㟁Ẽ᢬ᢠኚ໬ྠ᫬ ᐃἲ࡟ࡼࡿ࢟ࣗ࢔ࣉࣟࢭࢫゎᯒᑟ㟁ᛶ᥋╔๣ࡢ◳໬཯ᛂᣲືࢆㄪ࡭ࡿࡓࡵ㸪๛య᣺ࡾᏊヨ㦂㸦ISO12013-1㸧ࢆᐇ᪋ࡋࡓ㸬ࡑࡢ㝿㸪ᇶᯈ⾲㠃࡟ Ag 㟁ᴟ(㟁Ẽ᢬ᢠ⋡㹼10P:cm)ࢆ↝ࡁ௜ࡅ㸪ࢹࢪࢱ࢚ࣝࣞࢡࢺ࣓࣮ࣟࢱ
࡟᥋⥆ࡍࡿࡇ࡜࡟ࡼࡾ㟁Ẽ᢬ᢠኚ໬ࡶྠ᫬࡟ ᐃࡋࡓ㸬࢟ࣗ࢔᮲௳ࡣ 150 °C㸪1㹼10 h ࡜ࡋࡓ㸬

− 235 −

ᅗ㸫1㸧࢖࣑ࢲࢰ࣮ࣝゐ፹◳໬⣔ࣂ࢖ࣥࢲ㸦཯ᛂᛶᕼ㔘๣↓ῧຍ㸧ࢆ⏝࠸ࡓᑟ㟁ᛶ᥋╔๣ࢧࣥࣉࣝࡢ㟁Ẽ᢬ᢠ⋡ࡢࣇ࢕࣮ࣛయ✚ศ⋡౫Ꮡᛶ㸬

3. ⤖ᯝ
3-1 ࣃ࣮ࢥ࣮ࣞࢩࣙࣥ㌿⛣ᣲື࡜ࣂ࢖ࣥࢲ㓄ྜࡢ㛵ಀᅗ㸫1㸧࠾ࡼࡧᅗ㸫2㸧࡟࢖࣑ࢲࢰ࣮ࣝゐ፹◳໬⣔ࣂ࢖ࣥࢲࢆ⏝࠸ࡓᑟ㟁ᛶ᥋╔๣ࡢ㟁Ẽ᢬ᢠ⋡࡜ࣇ࢕࣮ࣛయ✚ศ⋡ࡢ㛵ಀࢆ♧ࡍ㸬ᅗ㸫1㸧ࡣ࢖࣑ࢲࢰ࣮ࣝゐ፹ࡢࡳῧຍࡋࡓሙྜࡢ⤖ᯝ࡛࠶ࡾ㸪ᅗ㸫2㸧ࡣࡑࡢࣂ࢖ࣥࢲࡢ୺ᡂศ࡛࠶ࡿࢢࣜࢩࢪࣝ
࢔࣑ࣥࡢ 40wt%ࢆ཯ᛂᛶᕼ㔘๣㸦ࣇ࢙ࢽࣝࢢࣜࢩࢪࣝ࢔࣑ࣥ㸧࡛⨨᥮ࡋࡓሙྜࡢ⤖ᯝ࡛࠶ࡿ㸬࡞࠾㸪࢟ࣗ࢔᫬㛫ࡣ 1㹼50 hࡢ⠊ᅖ࡛ኚ໬ࡉࡏࡓ㸬཯ᛂᛶᕼ㔘๣ࢆ⏝࠸࡞࠿ࡗࡓࢧࣥࣉ࡛ࣝࡣ 40㹼45vol%ࡢయ✚ศ⋡࡛ࣃ࣮ࢥ࣮ࣞࢩࣙࣥ㌿⛣ࡀぢࡽࢀࡓࡀ㸪཯ᛂᛶᕼ㔘๣ࢆῧຍࡍࡿࡇ࡜࡟ࡼࡾࣃ࣮ࢥ࣮ࣞࢩࣙࣥ㜈್ࡀ 30㹼
35vol%ࡲ࡛పୗࡋࡓ㸬ࡲࡓ㸪཯ᛂᛶᕼ㔘๣ࢆῧຍࡋ࡞࠿ࡗࡓ
ࢧࣥࣉ࡛ࣝࡣ࢟ࣗ࢔᫬㛫ࢆ 1㹼50 h ࡢ⠊ᅖ࡛ኚ໬ࡉࡏࡓ࡜ࡋ
࡚ࡶ㟁Ẽ᢬ᢠ⋡ࡢ್࡟ኚ໬ࡣぢࡽࢀ࡞࠿ࡗࡓࡀ㸪཯ᛂᛶᕼ㔘ᅗ㸫2㸧࢖࣑ࢲࢰ࣮ࣝゐ፹◳໬⣔ࣂ࢖ࣥࢲ㸦཯ᛂᛶᕼ㔘๣ 40wt%㸧ࢆ⏝࠸ࡓᑟ㟁ᛶ᥋╔๣ࢧࣥࣉࣝࡢ㟁Ẽ᢬ᢠ⋡ࡢࣇ࢕࣮ࣛయ✚ศ⋡౫Ꮡᛶ㸬๣ࢆῧຍࡋࡓ⣔࡛ࡣ࢟ࣗ࢔᫬㛫ࡀቑຍࡍࡿ࡜࡜ࡶ࡟ࣃ࣮ࢥࣞ
࣮ࢩࣙࣥ㜈್ࡀపୗࡍࡿഴྥࡀぢࡽࢀࡓ㸬ࣇ࢕࣮ࣛศᩓ⣔ࡢ㟁Ẽఏᑟ≉ᛶࡣ㸪ࣇ࢕࣮ࣛࡢศᩓᵓ㐀࡜ࣇ࢕࣮ࣛ㛫⏺㠃᢬ᢠࡢ஧ࡘࡢᅉᏊࡢᙳ㡪ࢆཷࡅ࡚ኚ
໬ࡍࡿ㸬ᅗ㸫1㸧࠾ࡼࡧᅗ㸫2㸧࡟♧ࡋࡓᑟ㟁ᛶ᥋╔๣ࡢ᩿㠃⤌⧊ࢆ⏬ീฎ⌮ࡋ㸪᳃ୗᣦᩘ࡜㞄᥋⢏Ꮚ㔜ᚰⅬ㛫㊥㞳ศᕸࢆồࡵࡓ㸬ࡑࡢ⤖ᯝ㸪ࣇ࢕࣮ࣛࡢศᩓᵓ㐀ࡣࣇ࢕࣮ࣛయ✚ศ⋡࡟ࡼࡗ࡚ࡢࡳኚ໬ࡋ㸪ࣂ࢖ࣥࢲ㓄ྜ⤌ᡂ࡟ࡼࡗ࡚ࡣ᭷ព࡞ᕪࢆ⏕ࡌ࡚࠸࡞࠸ࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡋࡓࡀࡗ࡚㸪ࣂ࢖ࣥࢲ㓄ྜ⤌ᡂ࡟ࡼࡿ㟁Ẽ᢬ᢠ⋡ࡢኚ໬ࡣࣇ࢕
࣮ࣛ㛫⏺㠃᢬ᢠ࡟㉳ᅉࡋ࡚⏕ࡌ࡚࠸ࡿࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪࢟ࣗ࢔᫬㛫࡟ࡼࡗ࡚ࡶࣇ࢕࣮ࣛศᩓᵓ㐀࡟᭷ព࡞ᕪࡀぢࡽࢀ࡞࠿ࡗࡓࡀ㸪཯ᛂᛶᕼ㔘๣ࢆῧຍࡋࡓࢧࣥ
ࣉ࡛ࣝࡣ㟁Ẽ᢬ᢠ⋡ࡢ࢟ࣗ࢔᫬㛫౫Ꮡᛶࡀぢࡽࢀࡓ㸬ࡇࡢࡇ࡜ࡣ㸪ࣇ࢕࣮ࣛ㛫ࡢᑟ㟁ࢥࣥࢱࢡࢺⓎ㐩ࡀ㏿ᗘㄽⓗ࡞ᛶ㉁ࢆࡶࡗࡓືⓗ࡞㐣⛬࡛࠶ࡿࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿ㸬
3-2 ࢟ࣗ࢔ࣉࣟࢭࢫ࡟࠾ࡅࡿᑟ㟁ࣃࢫᙧᡂ㐣⛬཯ᛂᛶᕼ㔘๣ࢆῧຍࡋࡓࢧࣥࣉࣝ࡟࠾࠸࡚㸪⢓ᙎᛶ≉ᛶ㸫㟁Ẽ᢬ᢠኚ໬ྠ᫬ ᐃἲ࡟ࡼࡿ࢟
ࣗ࢔ࣉࣟࢭࢫゎᯒࢆᐇ᪋ࡋࡓ㸬ᅗ㸫3㸧ࡣ཯ᛂᛶᕼ㔘๣ࢆ 40wt%ྵࡴࣂ࢖ࣥࢲ࡟ 82wt%ࡢ Agࣇ࢕࣮ࣛࢆῧຍࡋࡓᑟ㟁ᛶ᥋╔๣ࢧࣥࣉࣝࡢ࢟
ࣗ࢔ࣉࣟࢭࢫゎᯒ⤖ᯝ࡛࠶ࡿ㸬ࣂ࢖ࣥࢲ୰࡟㸱ḟඖᯫᶫᵓ㐀ࡀᙧᡂࡉࢀࡓ
ᚋ㸪㟁Ẽ᢬ᢠࡀపୗࡋ࡚࠸ࡗࡓ㸬ࡉࡽ࡟㸪࢟ࣗ࢔ࣉࣟࢭࢫ㛤ጞ࠿ࡽ 13000㹼20000 s ࡢ᫬㛫⠊ᅖ࡛ᛴ⃭࡞㟁Ẽ᢬ᢠࡢపୗࡀぢࡽࢀࡓ㸬ࡇࡢ㟁Ẽ᢬ᢠࡢῶᑡࡣࣂ࢖ࣥࢲࡢ◳໬཯ᛂᣲື࡜ࡣ㐃ᅗ㸫3㸧࢟ࣗ࢔ࣉࣟࢭࢫゎᯒ⤖ᯝ㸬ືࡍࡿࡇ࡜࡞ࡃ㉳ࡇࡗ࡚࠾ࡾ㸪ࣇ࢕࣮ࣛ⏺㠃㏆ഐ࡛㉳ࡇࡿ໬Ꮫⓗ࡞⌧㇟ࡢᙳ㡪࡟ࡼࡾᘬࡁ㉳ࡇࡉࢀࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪ࣇ࢕࣮ࣛ㛫ᑟ㟁ࢥࣥࢱࢡࢺࡣ㏿ᗘㄽⓗ࡞㐣⛬࡟ࡼࡗ࡚Ⓨ㐩ࡋ࡚࠸ࡃࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ㸬ࣂ࢖ࣥࢲࢣ࣑ࢫࢺࣜ࡟ࡼࡗ࡚ࣇ࢕࣮ࣛ㛫ᑟ㟁ࢥࣥࢱࢡࢺ
Ⓨ㐩ࡢ࢝࢖ࢿࢸ࢕ࢡࢫࢆไᚚࡍࡿࡇ࡜ࡣ㸪ᑟ㟁ᛶ᥋╔๣ࡢᮦᩱタィୖ㸪㔜せ࡞ព࿡ࢆᣢࡘࡇ࡜࡟࡞ࡿ࡜⪃࠼ࡽࢀࡿ㸬㸦ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢢ࣮ࣜࣥࣉࣟࢭࢫᏛศ㔝㸧− 236 −

ࡵࡗࡁἲ࡜㑅ᢥ⁐ゎࢆ⏝࠸ࡓࢼࣀ࣏࣮ࣛࢫᵓ㐀ࡢ⏕ᡂ᪩✄⏣኱Ꮫ ࢼࣀ⌮ᕤᏛ◊✲ᶵᵓ 㰻⸨ ⨾⣖Ꮚ
1.◊✲┠ⓗࢼࣀ࣏࣮ࣛࢫᮦᩱࡣప ࡛ࡢ↝⤖ࡀ㐍⾜ࡍࡿ࡜ሗ࿌ࡉࢀ࡚࠾ࡾࠊ᥋ྜᢏ⾡࡬ࡢ᪂ࡓ࡞ᛂ⏝໬ࡀᮇᚅࡉࢀࡿࠋᮏ
◊✲࡛ࡣࠊప ↝⤖ᆺ᥋ྜ࡟㐺ࡋࡓࢼࣀ࣏࣮ࣛࢫᮦᩱࡢ㛤Ⓨ࡜ࡑࢀ࡟ࡼࡿ㧗ᛶ⬟࣭㧗ಙ㢗ᛶ᥋ྜ㒊ࡢ๰ฟࢆ⾜࠺ࡇ࡜ࢆ┠ⓗ࡜ࡋࠊࡵࡗࡁἲࢆ⏝࠸࡚ Au-Ag ྜ㔠ࢆస〇ࡋࠊ㑅ᢥ⁐ゎ࠿ࡽᚓࡽࢀࡿ Au ࢼࣀ࣏࣮ࣛࢫᵓ㐀ࡢస〇᳨ウࡸ⢏Ꮚࡢᙧែไᚚࡢ᳨ウࢆ㐍ࡵࡓࠋ᪤࡟ Au-Ag ࢼࣀ࣏࣮ࣛࢫࢩ࣮ࢺࢆ⏝࠸ࡓホ౯࡟ࡘ࠸࡚ࡣࡑࡢ᭷ຠᛶࡀ☜ㄆࡉࢀ࡚࠸ࡿࡇ࡜࠿ࡽ  ࠊᮏㄢ㢟࡛ࡣࡵࡗࡁἲࢆ⏝࠸࡚ Au-Ag ྜ㔠ࢆస〇ࡋࠊ㑅ᢥ⁐ゎ࠿ࡽᚓࡽࢀࡿ Au ࢼࣀ࣏࣮ࣛࢫᵓ㐀ࡢస〇᳨ウࡸ⢏Ꮚࡢᙧែไᚚࡢ᳨ウࢆ㐍ࡵࡓࠋ

Table 1. Bath composition of Au-Ag films.
ヨ⸆⃰ᗘ
HAuCl4·4H2O 1 mM
AgNO3
2 mM, 4mM
Thiourea
0.2 M
H2SO4
0.01M

2. ◊✲᪉ἲ

Au-Ag ࡢ⭷ᙧᡂࡣ㟁Ẽ໬Ꮫ ᐃ⿦⨨㸦HZ7000ࠊ໭ᩯ㟁ᕤᰴ㸧ࢆ⏝࠸࡚⾜ࡗࡓࠋ⾲ 1 ࡟⁐ᾮᵓᡂ  ࢆ♧ࡍࠋ⭷⤌ᡂศᯒࡣ ICP-MS㸦ICAP-QࠊThermo Scientific㸧ࡸ GD-OES JY5000RFࠊᇼሙ〇సᡤ♫〇 ࢆ⏝࠸࡚⾜ࡗࡓࠋᙧែほᐹࡣ FESEM㸦S-4800ࠊओ᪥❧ࣁ࢖ࢸࢡࣀࣟࢪ࣮ࢬ㸧ࢆ⏝࠸࡚⾜ࡗࡓࠋ᥋ྜホ౯ࡣᅗ 1 ࡟♧ࡍࡼ࠺࡟ Cu ࣌ࣞࢵࢺ࡟ Au37-Ag63 ࡢࢼࣀ࣏࣮ࣛࢫᵓ㐀ࢆᙧᡂࡋࠊ❅⣲୰ 350 °C ࠊ 30 ศࠊ 20(Au nano-porous)

MPa ࡢ᥋ྜ᮲௳࡛ ࡏࢇ᩿ᙉᗘࡢホ౯ࢆ⾜ࡗࡓࠋ⾲㠃ࡢࢮ࣮ࢱ㟁఩࡟ࡘ࠸࡚ࡣ Zetasizer range (Malvern Instruments

Ltd.)ࢆ⏝࠸ࡓࠋ

Fig. 1. Schematic image of a sample for theevaluation of bond strength.

3. ⤖ᯝᚋࡢࢼࣀ࣏࣮ࣛࢫᵓ㐀⭷≀ᛶ࡟ࡘ࠸᳨࡚ウࢆ㐍ࡵࡓࠋᅗ 2
ࡣ 0.1M ࡢ◪㓟⁐ᾮ୰ࡢ࢔ࣀ࣮ࢻศᴟ ᐃ⤖ᯝࢆ♧ࡍࠋᐃ⤖ᯝ࠿ࡽ㟁ᯒᚋ࡟⇕ฎ⌮ࢆ⾜࠺ࡇ࡜࡟ࡼࡾ⭷ࡢ⪏㣗ᛶࡀྥୖࡍࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ⇕ฎ⌮࡟ࡼࡿ⬺࢞ࢫࡀ⢏Ꮚࡢจ㞟࡜࡞ࡾࠊ⭷ࡢḞ㝗ࢆపῶࡉࡏࠊ⪏㣗ᛶࡢྥୖ࡟ࡘ࡞ࡀ
ࡗࡓࡶࡢ࡜⪃࠼࡚࠸ࡿࠋࡇࡢࡼ࠺࡞࢔ࣀ࣮ࢻศᴟ≉ᛶࡢᕪ

14

Current density / mA/cm2

 Au-Ag 㟁ᯒ⭷ᙧᡂᚋࡢ⇕ฎ⌮᮲௳࡜ࡑࡢᚋࡢࢹ࢔ࣟ࢖

Room temperature

12

50 㼻C

10

150 㼻C8200 㼻C

6
4
2
0
0

0.2

0.4

0.6

0.8

Fig. 1 $QRdic polalizatio for electrodepositedࡣࡑࡢᚋࡢࢹ࢔ࣟ࢖ᚋࡢ⭷ᙧែ࡟ᙳ㡪ࢆ୚࠼ࡓࠋᅗ 3 ࡟ࢹ
Au-Ag.   Potential / V vs. Ag / AgCl࢔ࣟ࢖ᚋࡢ SEM ീࢆ♧ࡍࠋSEM ീ࠿ࡽ㟁ᯒᚋࡢ⇕ฎ⌮࡟
Sol; 0.1M HNO3ࡼࡾ⢏Ꮚࢧ࢖ࢬ㸦࣓ࣜ࢞ࣥࣥࢺࢧ࢖ࢬ㸧ࡢቑ኱ࡀ☜ㄆࡉࢀࡓࠋ Fig.2. Anodic polarization curves for the Au-Ag
ࡲࡓ࣏࣮ࣛࢫ㒊ࡶ኱ࡁࡃ࡞ࡗ࡚࠸ࡿࡇ࡜࠿ࡽ⢏Ꮚࡢᣑᩓࠊจ

1electrodeposited films.

㞟ࡀ⏕ࡌ࡚࠸ࡿࡶࡢ࡜⪃࠼ࡽࢀࡓࠋᅗ 4 ࡟ࡣ᥋ྜᙉᗘ࡟ࡘ࠸࡚ㄪ࡭ࡓ⤖ᯝࢆ♧ࡍࠋᮏ⤖ᯝ࠿ࡽ 50Υ࡛ࡢ⇕ฎ⌮ࢆ⾜ࡗࡓヨᩱ࡟࠾࠸࡚኱ࡁ࡞᥋ྜᙉᗘࢆ♧ࡍࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ⾲ 2 ࡟ࡣ⇕ฎ⌮᮲௳ࢆኚ࠼ࠊస〇ࡋࡓࢼࣀ࣏࣮
ࣛࢫᵓ㐀ࡢࢮ࣮ࢱ㟁఩ ᐃ⤖ᯝࢆ♧ࡍࠋᐊ ࠊ50 Υࡢ⇕ฎ⌮࡛ࡣ࡯ࡰྠ⛬ᗘࡢ㟁఩ࢆ♧ࡋࡓࡀ 150 Υࡢ⇕ฎ⌮࡛ࡣࡼࡾ㈇ࡢ㟁఩࡜࡞ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ௒ᅇࡢ᥋ྜホ౯⤖ᯝ࡜↷ࡽࡋྜࢃࡏ⪃៖ࡍࡿ࡜ࢮ࣮ࢱ㟁఩ࡢ ᐃ⤖ᯝࡣ᥋ྜᙉᗘ࡜ࡣ㛵㐃ࡏࡎࠊࡴࡋࢁᙧែࡀ㛵୚ࡋ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ௒ᚋࠊࡉࡽ࡟ᙧែࡢᕪ࡜᥋ྜ࡜ࡢ㛵− 237 −

ಀ࡟ࡘ࠸᳨࡚ウࢆ㐍ࡵ࡚࠸ࡃணᐃ࡛࠶ࡿࠋ







(a) R. T.

(b) 50 ºC

Fig.3. FE-SEM images of the Au-Ag films after de-alloying.
Shear strength / MPa

20



15



10



Table 2. Zeta potential measurement
results.


5



0



R. T.
50
150
Annealing temperature / ºC(c) 150 ºC

200 nm

R.T.

50 °C
-16.6
-18.1

150 °C
-17
-27.4
-16.1
-26.7



Fig.4. Effect of process temperature on shear strength ofa Cu-to-Cu joint under nitrogen atmosphere.

⤖ㄽ
Au ࢼࣀ࣏࣮ࣛࢫᵓ㐀ࡢస〇᳨ウࡸ⢏Ꮚࡢᙧែไᚚࡢ᳨ウ࡟ࡘ࠸࡚ࡵࡗࡁἲࢆ⏝࠸ࡓ᳨ウࢆ㐍ࡵࡓࠋAu-Ag 㟁ᯒᚋ࡟⇕ฎ⌮ࢆ⾜࠺ࡇ࡜࡟ࡼࡾࢼࣀ࣏࣮ࣛࢫᙧែࡀ␗࡞ࡿࡇ࡜ࡀほ ࡉࢀࡓࠋ150 Υࡢ⇕ฎ⌮࡛ࡣ⢏ࢧ࢖ࢬࡀ኱
ࡁࡃ࡞ࡿࡇ࡜ࠊᐊ ࡛ࡣ࣏࣮ࣛࢫᵓ㐀ࡀࡼࡃ࡛ࡁ࡚࠸࡞࠸ࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ௒ᅇࡢ⤖ᯝ࠿ࡽ 50 Υࡢ⇕ฎ⌮ᚋࡢ⾲㠃ᙧែ࡟࠾࠸࡚⢏Ꮚࡀ኱ࡁࡃ࡞ࡽࡎ࠿ࡘࢼࣀ࣏࣮ࣛࢫᵓ㐀ࡀస〇࡛ࡁࡓࠋࢼࣀ࣏࣮ࣛࢫᵓ㐀ࡀᙧᡂࡉࢀࡓ Cu࣌ࣞࢵࢺࢆ⏝࠸࡚᥋ྜホ౯ࢆ⾜ࡗࡓ⤖ᯝࠊ50 Υࡢ⇕ฎ⌮ࢆ⾜ࡗࡓヨᩱࡀ௒ᅇࡢヨᩱࡢ୰୍࡛␒኱ࡁ࡞᥋ྜᙉᗘ
ࢆ♧ࡍࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࢼࣀ࣏࣮ࣛࢫᵓ㐀ࡢࢮ࣮ࢱ㟁఩ ᐃ⤖ᯝ࠿ࡽࠊᐊ ࠊ50 Υࡢ⇕ฎ⌮࡛ࡣ࡯ࡰྠ⛬ᗘࡢࢮ࣮ࢱ㟁఩ࢆ♧ࡋࡓࡀ 150 Υࡢ⇕ฎ⌮࡛ࡣࡼࡾ㈇ࡢࢮ࣮ࢱ㟁఩࡜࡞ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ᥋ྜホ౯⤖ᯝ࡜↷ࡽࡋྜࢃࡏ⪃៖ࡍࡿ࡜ࢮ࣮ࢱ㟁఩ࡢ ᐃ⤖ᯝࡣ᥋ྜᙉᗘ࡜ࡣ㛵㐃ࡏࡎࠊࡴࡋࢁᙧែࡀ㛵୚ࡋ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ
5. ཧ⪃ᩥ⊩(1) H. Mimatsu, J. Mizuno, M. Saito, T. Kasahara, H. Nishikawa, S. Shoji, ” Low-Temperature Au-Au Bonding Using
Nanoporous Au-Ag Sheets”, J. Appl. Phys., Vol. 52, (2013) pp. 050204.
(2) Y-Y. Tang, C-L. Kao. And P-Y. Chen, “Electrochemical detection of hydrazine using a highly sensitive nanoporous gold
electrode”, Analytical Chimica Acta, 711, 32-39 (2012).

(3) M. Saito, K. Matsunaga, J. Mizuno, H. Nishikawa,“Nano-porous Structure Control under Electrodeposition andDealloying Conditions for Low-temperature Bonding”, 5th Electronics System-Integration Technology Conference,
ESTC 2014; Helsinki; Finland; 16 September 2014 through 18 September 2014; Category numberCFP14TEM-ART;
Code 109411 Article number 6962819.
(4) K. Matsunaga, Min-Su Kim, H. Nishikawa, M. Saito, J. Mizuno, “Relationship between bonding conditions andshear strength on joints using Au nanoporous sheet”, 5th Electronics System-Integration Technology Conference, ESTC
2014; Helsinki; Finland; 16 September 2014 through 18 September 2014; Category numberCFP14TEM-ART;
Code 109411. Article number 6962855.          (ඹྠ◊✲ศ㔝㸸ࢫ࣐࣮ࢺࢢ࣮ࣜࣥࣉࣟࢭࢫศ㔝)− 238 −