1A-a01

Y 系線材プロセス (1)㻴㼛㼠㻙㼣㼍㼘㼘㻌㻼㻸㻰 䛻䜘䜛ேᕤ䝢䞁ᑟධ 㻾㻱㻮㻯㻻 ⥺ᮦ㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㻮㻹㻻㻌㼐㼛㼜㼑㼐㻌㻾㻱㻮㻯㻻㻌㼏㼛㼍㼠㼑㼐㻌㼏㼛㼚㼐㼡㼏㼠㼛㼞㼟㻌㼎㼥㻌㼠㼔㼑㻌㼔㼛㼠㻙㼣㼍㼘㼘㻌㻼㻸㻰㻌㼠㼑㼏㼔㼚㼕㼝㼡㼑㻌㻌ᖹ⏣㻌 ΅䠈ᰠᮏ㻌 ୍⮧㻘஬༑ᔒ㻌 ග๎㻘㻌 ⸨⏣㻌 ┿ྖ㻘㻌 ྜྷ⏣㻌 ᭸㻘㻌 Ṋ⸨㻌 ⩧࿃㻘㻌 㣤ᓥ㻌 ᗣ⿱㻘㻌 ┤Ụ㻌 㑥ᾈ䠄䝣䝆䜽䝷䠅䠗㻌 㻌ᒸ⏣㻌 㐩඾㻘㻌 ῐ㊰㻌 ᬛ䠄ᮾ໭኱䠅㻧㻌 ᮌ㡲㻌 㝯ᬸ䠄஑኱䠅㻌㻴㻵㻾㻭㼀㻭㻌㼃㼍㼠㼍㼞㼡䠈㻷㻭㻷㻵㻹㻻㼀㻻㻌㻷㼍㼦㼡㼛㼙㼕㻘㻌㻵㻳㻭㻾㻭㻿㻴㻵㻌㻹㼕㼠㼟㼡㼚㼛㼞㼕㻘㻌㻲㼁㻶㻵㼀㻭㻌㻿㼔㼕㼚㼖㼕㻘㻌㼅㻻㻿㻴㻵㻰㻭㻌㼀㼛㼙㼛㻘㻌㻹㼁㼀㻻㻌㻿㼔㼛㼓㼛㻘㻌㻵㻵㻶㻵㻹㻭㻌㼅㼍㼟㼡㼔㼕㼞㼛㻘㻌㻺㻭㻻㻱㻌㻷㼡㼚㼕㼔㼕㼞㼛㻌㻔㻲㼁㻶㻵㻷㼁㻾㻭㻕㻧㻌㻻㻷㻭㻰㻭㻌㼀㼍㼠㼟㼡㼚㼛㼞㼕㻘㻌㻭㼃㻭㻶㻵㻌㻿㼍㼠㼛㼟㼔㼕㻌㻔㼀㼛㼔㼛㼗㼡㻌㼁㼚㼕㼢㻚㻕㻧㻌㻷㻵㻿㻿㻌㼀㼍㼗㼍㼚㼛㼎㼡㻌㻔㻷㼥㼡㼟㼔㼡㻌㼁㼚㼕㼢㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼣㼍㼠㼍㼞㼡㻚㼔㼕㼞㼍㼠㼍㻬㼖㼜㻚㼒㼡㼖㼕㼗㼡㼞㼍㻚㼏㼛㼙㻌㻌㻝䠊䛿䛨䜑䛻㻌
㼀㼍㼎㼘㼑㻌㻝㻌㻿㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㼟㻌㼛㼒㻌㻮㻴㻻㻌㼐㼛㼜㼑㼐㻌㻱㼡㻮㻯㻻㻌㼟㼍㼙㼜㼘㼑㼟㻚㻌㻌䝣 䝆 䜽 䝷 䛷 䛿 䚸 㻵㻮㻭㻰㻛㻼㻸㻰 ἲ 䜢 ⏝ 䛔 䛯 㧗 ရ ㉁ 䛺 㛗 ᑻ㻾㻱㻮㼍㻞㻯㼡㻟㻻㼥㻌 㻔㻾㻱㻮㻯㻻㻕⥺ᮦ䛾㛤Ⓨ㻘㻌 〇㐀䜢䛚䛣䛺䛳䛶䛚䜚㻘㻌☢ሙ୰ 㻶㼏 䜢ྥୖ䛥䛫䜛䛯䜑㻘㻌㻴㼛㼠㻙㼣㼍㼘㼘 ᪉ᘧ䛾 㻼㻸㻰 ⿦⨨䜢⏝䛔䛯ேᕤ䝢䞁ᑟධ 㻾㻱㻮㻯㻻 ⥺ᮦ䛾㛤Ⓨ䜢㐍䜑䛶䛔䜛䚹㏆ᖺ䛷䛿㻘㻌㻮㼍㻴㼒㻻㻟㻔㻮㻴㻻㻕䜢ேᕤ䝢䞁䛸䛧䛶 㻱㼡㻮㻯㻻 䛻ᑟධ䛩䜛䛣䛸䛷㻘㻌 㢧ⴭ䛺≉ᛶྥୖ䛜ሗ࿌䛥䜜䛶䛚䜚㼇㻝㼉㻘㻌 䝣䝆䜽䝷䛷䜒ᡂ⭷᮲௳䛾᭱㐺໬䜔㛗ᑻ໬䜢㐍䜑䛶䛔䜛㼇㻞㼉䚹௒ᅇ䛿㻘㻌 ேᕤ䝢䞁ᑟධ㻾㻱㻮㻯㻻 ⥺ᮦ䛾☢ሙ୰ 㻶㼏 䛾ྥୖ䜢┠ᣦ䛧㻘㻌㻮㻴㻻 ῧຍ㔞䜢ኚ䛘㻌㻌䛶≉ᛶ䛾ኚ໬䜢ㄪᰝ䛧䛯⤖ᯝ䜢ሗ࿌䛩䜛䚹㻌㻌㻞䠊⥺ᮦస〇㻌㻣㻡㻌 䃛㼙 ཌ㻘㻌㻝㻞㻌㼙㼙 ᖜ䛾 㻴㼍㼟㼠㼑㼘㼘㼛㼥㼹䝔䞊䝥ୖ䛻 㻵㻮㻭㻰㻙㻹㼓㻻ᒙ䜢ྵ䜐୰㛫ᒙⷧ⭷䜢ᡂ⭷䛧䛯ᇶᯈୖ䛻㻘㻌 ேᕤ䝢䞁䛸䛧䛶㻮㻴㻻 䜢ῧຍ䛧䛯 㻱㼡㻮㻯㻻 䝍䞊䝀䝑䝖䜢౑⏝䛧䛶 㻴㼛㼠㻙㼣㼍㼘㼘㻌 㻼㻸㻰⿦⨨䛷 㻾㻱㻮㻯㻻 ᒙ䜢ᡂ⭷䛧䛯䚹㻮㻴㻻 䛾ῧຍ㔞䛜␗䛺䜛䝍䞊䝀䝑䝖䜢⏝䛔㻘㻌 㧗⵨╔㏿ᗘ䛷ᡂ⭷䛧䛯䝃䞁䝥䝹䛾ㅖඖ䜢 㼀㼍㼎㼘㼑㻌㻝䛻♧䛩䚹㻮㻴㻻 䛾ῧຍ㔞䛿䝃䞁䝥䝹 㻭㻘㻌㻮㻘㻌㻯 䛾㡰䛻ከ䛟䛺䛳䛶䛔䜛䚹㻾㻱㻮㻯㻻 ᒙୖ䛻䛿䝇䝟䝑䝍ἲ䛻䜘䜚 㻭㼓 ಖㆤᒙ䜢ᡂ⭷䛧䛯䚹㻌㻌㻟䠊ホ౯᪉ἲ㻌☢ሙ୰ 㻶㼏 䛾ホ౯䛻䛿㻘㻌 䝣䜷䝖䝸䝋䜾䝷䝣䜱䞊䛚䜘䜃䜴䜵䝑䝖䜶㻌䝑䝏䞁䜾䛻䜘䜚 㻟㻜㻌 䃛㼙 ⛬ᗘ㽢㻝㻌 㼙㼙 㛗䛾䝬䜲䜽䝻䝤䝸䝑䝆䜢ᙧ㻲㼕㼓㻚㻌㻝㻌㻭㼚㼓㼡㼘㼍㼞㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㼟㻌㼛㼒㻌㻶㼏㻌㼍㼠㻌㼀㻌㻩㻌㻟㻜㻌㻷㻌㼍㼚㼐㻌 㻌ᡂ䛧䛯䚹䝃䞁䝥䝹䜢㻌 㻴㼑 䜺䝇䛷෭༷䛧㻘㻌 ㉸ఏᑟ䝬䜾䝛䝑䝖䜢⏝㻮㻌㻩㻌㻣㻌㼀㻚㻌䛔䛶☢ሙ䜢༳ຍ䛧䛶ᅄ➃Ꮚ㏻㟁ἲ䛷 㻵㻙㼂 ᐃ䜢⾜䛳䛯䚹⮫⏺
㻌㟁ὶ 㻵㼏 䛾㟁⏺ᇶ‽䛿 㻝㻌 䃛㼂㻛㼏㼙 䛸䛧㻘㻌㻝㻜㻌㼙㼙 ᖜ᥮⟬ 㻵㼏㻌㼇㻭㻛㼏㼙㼉㻌䛿㻘㻌 ᐃ䛧䛯 㻵㼏 䛻㻘㻌 㻣㻣㻚㻟㻌 㻷㻘㻌 㼟㼑㼘㼒㻙㼒㼕㼑㼘㼐 䛻䛚䛡䜛䝤䝸䝑䝆ຍᕤ๓ᚋ䛾 㻵㼏 ẚ䜢᥃䛡䛶⟬ฟ䛧䛯䚹ᙉ☢ሙ୰䛷䛾 㻵㼏 ᐃ䛿㻘㻌 ᮾ໭኱Ꮫ㔠ᒓᮦᩱ◊✲ᡤ㝃ᒓᙉ☢ሙ㉸ఏᑟᮦᩱ◊✲䝉䞁䝍䞊䛻䛚䛔䛶ᐇ᪋䛧䛯䚹㻌㻾㻱㻮㻯㻻 ᒙ䛾ᚤ⣽ᵓ㐀䛿䚸㞟᮰䜲䜸䞁䝡䞊䝮⿦⨨䜢⏝䛔䛶䝃䞁䝥䝹䜢ຍᕤ䛧㻘㻌 ㏱㐣㟁Ꮚ㢧ᚤ㙾䛻䜘䜚᩿㠃㻛ᖹ㠃ほᐹ䜢⾜䛳䛯䚹㻌㻌㻠䠊⤖ᯝ䛚䜘䜃⪃ᐹ㻌ྛ䝃䞁䝥䝹䛾 㻟㻜㻌 㻷㻘㻌 㻣㻌 㼀 䛻䛚䛡䜛 㻶㼏 䛾☢ሙゅᗘ౫Ꮡᛶ䜢㻲㼕㼓㻚㻌㻝 䛻♧䛩䚹㻮㻴㻻 ῧຍ㔞䛜ᑡ䛺䛔䝃䞁䝥䝹 㻭 䜔 㻮 䛾ሙྜ㻘㻌㻌䃗㻩㻌㻥㻜㼻㻔㻮㻛㻛㼍㼎㻕㻌 䛾 㻶㼏 䛜㧗䛟㻘㻌 䃗㻩㻌㻜㼻㻔㻮㻛㻛㼏㻕㻌 ௜㏆䛾 㻶㼏 䛾ゅ㻲㼕㼓㻚㻌㻞㻌㻼㼘㼍㼚㻙㼢㼕㼑㼣㻌㻿㼀㻱㻹㻌㼕㼙㼍㼓㼑㻌㼛㼒㻌㼠㼔㼑㻌㼟㼍㼙㼜㼘㼑㻌㻯㻚㻌㻌ᗘ౫Ꮡᛶ䛿ᑠ䛥䛔䚹㻮㻴㻻 ῧຍ㔞䛜ከ䛔䝃䞁䝥䝹 㻯 䛷䛿㻘㻌 䃗㻩㻌ㅰ㎡㻌㻥㻜㼻௜㏆䛾 㻶㼏 䛿పୗ䛧䛶䛔䜛䛜㻘㻌 䃗㻩㻌 㻜㼻௜㏆䛾 㻶㼏 䛜ྥୖ䛧㻌 䛣䛾ᡂᯝ䛾୍㒊䛿ᅜ❧◊✲㛤Ⓨἲே᪂䜶䝛䝹䜼䞊䞉⏘ᴗ䛶䛔䜛䛣䛸䛜䜟䛛䜛䚹㻌ᢏ⾡⥲ྜ㛤Ⓨᶵᵓ㻔㻺㻱㻰㻻㻕䛾ጤク䛚䜘䜃ຓᡂ஦ᴗ䛾⤖ᯝᚓ㻲㼕㼓㻚㻌㻞 䛻䝃䞁䝥䝹 㻯 䛾ᖹ㠃 㻿㼀㻱㻹 ീ䜢♧䛩䚹㻮㻴㻻 䝘䝜䝻䝑䜙䜜䛯䜒䛾䛷䛒䜛䚹㻌 㻌䝗䛾ᚄ䛿 㻡㼚㼙 ⛬ᗘ䛷䛒䜚㻘㻌 㻝㻜㼚㼙 ⛬ᗘ䛾㛫㝸䜢䛚䛔䛶ᆒ୍䛻㻌ศᩓ䛧䛶䛔䜛䛣䛸䛜䜟䛛䜛䚹᩿㠃 㻿㼀㻱㻹 ീ䛻䛚䛔䛶䜒 㼏 ㍈᪉ྥཧ㻌㻌⊩㻌䛻┤⥺≧䛻ᡂ㛗䛩䜛䝘䝜䝻䝑䝗䜢☜ㄆ䛧䛶䛚䜚㻘㻌㻮㻛㻛㼏 ௜㏆䛾 㻶㼏㼇㻝㼉㻌㼀㻚㻌㼅㼛㼟㼔㼕㼐㼍㻌㼑㼠㻌㼍㼘㻚㻘㻌㻶㻚㻌㻯㼞㼥㼛㻚㻌㻿㼡㼜㼑㼞㻚㻌㻿㼛㼏㻚㻌㻶㼜㼚㻚㻘㻌㼂㼛㼘㻚㻌㻠㻥㻌㻺㼛㻚㻌㻟㻌䛾ቑຍ䛻ᐤ୚䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹㻌㻔㻞㻜㻝㻠㻕㻌㼜㻚㻝㻢㻟㻚㻌⏕⏘ᛶྥୖ䛻᭷฼䛺㧗⵨╔㏿ᗘ䛾ᡂ⭷᮲௳䛷䜒㻘㻌 ┤⥺≧㼇㻞㼉㻌㻿㻚㻌㻲㼡㼖㼕㼠㼍㻌㼑㼠㻌㼍㼘㻚㻘㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻥㻠㻌䛾䝘䝜䝻䝑䝗䛜ᡂ㛗䛩䜛䛣䛸䜢☜ㄆ䛷䛝㻘㻌 ☢ሙ୰ 㻶㼏 䜢ไᚚ䛷䛝㻔㻞㻜㻝㻣㻕㻌㼜㻚㻞㻤㻚㻌䜛ぢ㎸䜏䛜ᚓ䜙䜜䛯䚹㻌
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第95回

2017年度秋季低温工学・超電導学会

1A-a02

Y 系線材プロセス (1)PLD-SmBCO ୰ᑻ⥺ᮦ䛾䝥䝹䞊䝮䛾⤌ᡂศᕸ䛾ᆒ୍໬ཬ䜃㧗 Jc ໬ᢏ⾡㻌High Jc in SmBCO Coated Conductor by homogeneous composition in plume during PLD processᚋ⸨ ኱ᚿ, ᅵᒇ 㞝ྖ, ୍㔝 ♸ு(ྡ኱), ῐ㊰ ᬛ(ᮾ໭኱), ᯇᮏ せ(஑ᕤ኱) , ྜྷ⏣ 㝯(ྡ኱)
GOTO Daishi, TSUCHIYA Yuji, ICHINO Yusuke, YOSHIDA Yutaka (Nagoya University);
AWAJI Satoshi (Tohoku University); MATSUMOTO Kaname (Kyushu Institute of Technology)
E-mail: goto-daishi16@ees.nagoya-u.ac.jp㻝㻚䛿䛨䜑䛻㻌
REBa2Cu3Oy(REBCO)㧗 ㉸ఏᑟ⥺ᮦ䛿☢ሙ୰⮫⏺㟁ὶᐦᗘ Jc 䛾≉ᛶ䛜ඃ䜜䜛ᮦᩱ䛸䛧䛶ᵝ䚻䛺㉸ఏᑟᶵჾ䜈ᛂ⏝䛜ᮇᚅ䛥䜜䛶䛔䜛䚹௦⾲ⓗ䛺స〇ἲ䛷䛒䜛䝟䝹䝇䝺䞊䝄䞊⵨
╔(PLD)ἲ䛿䚸REBCO ↝⤖య䝍䞊䝀䝑䝖䛻㧗䜶䝛䝹䜼䞊⣸እ䝺䞊䝄䞊䜢↷ᑕ䛧䚸䝍䞊䝀䝑䝖䛾䜰䝤䝺䞊䝅䝵䞁䛻䜘䜚⵨╔䛩䜛᪉ἲ䛷䛒䜛䚹䜎䛯䚸PLD ἲ䜢⏝䛔䛯㛗ᑻ⥺ᮦస〇䛻䛿 Reel toReel (RTR)䝅䝇䝔䝮䛷⥺ᮦ䜢⛣ື䛥䛫䛺䛜䜙ᡂ⭷䜢⾜䛖䚹䛧䛛䛧䚸PLD ἲ䛷䛿䚸䝥䝹䞊䝮ෆ䛾䜰䝤䝺䞊䝅䝵䞁䛧䛯ඖ⣲䛾⤌ᡂศᕸ䛜Ꮡᅾ䛩䜛䛯䜑䛻⥺ᮦ䛺䛹䛾⤌ᡂ䛻୙ᆒ୍䛺Ⅼ䛜ㄢ㢟䛸䛧䛶ᣲ䛢䜙䜜䜛䚹䛭䛣䛷䚸ᮏ◊✲䛷䛿 RTR 䝅䝇䝔䝮䜢⏝䛔䛯 PLD-SmBCO ⥺ᮦ䛾 Jc ྥୖ䜢┠ⓗ䛸䛧䛶䚸䝬䝇䜽䜢⏝䛔䛯⥺ᮦ䛾⤌ᡂ䛾ᆒ୍ᛶ䛾ྥୖ䜢⾜䛳䛯䚹䛭䛾䛯䜑䚸PLD ἲ䛻䜘䜚⵨╔䛥䜜䛯ඖ⣲䛾⤌ᡂศᕸ䜢 ᐃ䛧䚸⤌ᡂ䛪䜜䛜㉳䛣䜛㡿ᇦ䛻䝬䝇䜽䜢タ䛡䛶⵨╔䜢ᢚไ䛧䚸䛭䛾 Jc 䛻୚䛘䜛ᙳ㡪䜢᳨ウ䛧䛯䚹㻞㻚㻌 ᐇ㦂᪉ἲ㻌
KrF 䜶䜻䝅䝬䝺䞊䝄䞊䚸RTR 䝅䝇䝔䝮䜢⏝䛔䛯 PLD ἲ䛻䜘䜚
IBAD-MgO ᇶᯈୖ䛻 SmBCO ⥺ᮦ䜢స〇䛧䛯䚹ᅛᐃᇶᯈヨ㦂䛸䛧䛶䚸⥺ᮦ䜢ᅛᐃ䛧䛶ඖ⣲ศᕸ䛚䜘䜃⵨╔䝺䞊䝖ศᕸ䜢ᐃ䛧䛯䚹ḟ䛻䚸⥺ᮦ䜢㏦䜚䛺䛜䜙ᡂ⭷䜢⾜䛳䛯䚹䛣䛾䛸䛝䚸䝬䝇䜽䛾᭷↓䛻䜘䜚䚸ヨᩱ䜢 with Mask䚸without Mask 䛸⾲グ䛩䜛䚹୧ヨᩱ䛾స〇᮲௳䛿䚸ᡂ⭷ ᗘ䛿 850ºC ᅛᐃ䛧䚸⥺ᮦ㏦
䜚㏿ᗘ 0.072-0.288 m/h 䛻ᑐ䛧䝺䞊䝄䞊⧞䜚㏉䛧࿘Ἴᩘ䜢
10-40 Hz 䛸䚸ྠ➼䛾⭷ཌ䛸䛺䜛䜘䛖䛻ኚ໬䛥䛫䛯䚹Fig.1 䛻䝬䝇䜽䜢⏝䛔䛯 SmBCO ⥺ᮦ䛾ᡂ⭷ᶍᘧᅗ䜢♧䛩䚹with Mask ⥺ᮦ䛿 Fig.1 䛻♧䛩䜘䛖䛻䝠䞊䝍䞊ຍ⇕㒊䛾୰ᚰ䜢ཎⅬ䛸䛧䛶䚸-3 cm ௨ୗ䛚䜘䜃+3 cm ௨ୖ䛾㡿ᇦ䛻䝬䝇䜽䜢タ⨨䛧䛯䚹స〇䛧䛯ヨᩱ䛾⤌ᡂཬ䜃⭷ཌ䛿䚸ㄏᑟ⤖ྜ䝥䝷䝈䝬(ICP)ศගἲ
䜢⏝䛔䛶ホ౯䛧䛯䚹ヨᩱ䛾㉸ఏᑟ≉ᛶ䛿䚸┤ὶᅄ➃Ꮚἲ䛻䜘䜚 ᐃ䛧䛯䚹䜎䛯䚸㼄 ⥺ᅇᢡ䛻䜘䜚⥺ᮦ䛾⤖ᬗᵓ㐀䜢ྠᐃ䛧䛯䚹㻌㻟䠊ᐇ㦂⤖ᯝཬ䜃⪃ᐹ㻌
Fig.2 䛻ᅛᐃᇶᯈヨ㦂䛾⤖ᯝ䛸䛧䛶䚸఩⨨ x 䛷䛾⤌ᡂẚ䛚䜘䜃ᡂ⭷䝺䞊䝖䜢♧䛩䚹୰ᚰ䛛䜙 3 cm ௨ୖ㞳䜜䛯㡿ᇦ䛷䛿䚸Sm/Cu ཬ䜃 Ba/Cu 䛾ẚ⋡䛜 S䡉BCO ⤌ᡂ䜘䜚ᑠ䛥䛟䚸Cu-rich䛷䛒䛳䛯䚹䜎䛯䚸ᅗ䜘䜚ᡂ⭷䝺䞊䝖䛿୰ᚰ䛛䜙㞳䜜䜛䜋䛹 1 ḟ㛵ᩘⓗ䛻ῶᑡ䛧䛯䚹䛭䛣䛷䚸୰ᚰ䛛䜙 3 cm ௨ෆ䛾⤌ᡂ䛪䜜䛾ᑠ䛥䛔㡿ᇦ䛷ᡂ⭷䜢⾜䛖䛯䜑䚸6 cm ᖜ䛾䝬䝇䜽䜢タ䛡䜛䛣䛸䛷⤌ᡂศᕸ䜢ᆒ୍໬䛧䚸Jc 䛾ྥୖ䜢ᅗ䛳䛯䚹
Fig.3 䛻 with Mask ཬ䜃 without Mask ⥺ᮦ䛾⥺ᮦ㏦䜚㏿ᗘ䛻ᑐ䛩䜛 Jc 䜢♧䛩䚹ᅗ䜘䜚඲䛶䛾⥺ᮦ㏦䜚㏿ᗘ䛻䛴䛔䛶 with
Mask 䛾᪉䛜 Jc 䛜ྥୖ䛩䜛䛣䛸䛜ศ䛛䜚䚸䝬䝇䜽䛿 Jc 䛾ྥୖ䛻᭷ຠ䛷䛒䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹䜎䛯 㼄 ⥺ᅇᢡ䛾⤖ᯝ䜘䜚⥺ᮦ㏦
䜚㏿ᗘ䛜㏿䛔䜋䛹 a ㍈㓄ྥ┦䛾ቑຍ䛩䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹䛣䜜䛿⥺ᮦ㏦䜚㏿ᗘ䛜㏿䛔䜋䛹䝺䞊䝄䞊⧞䜚㏉䛧࿘Ἴᩘ䛜኱䛝䛟䚸ᡂ⭷䝺䞊䝖䛜ቑຍ䛩䜛䛯䜑䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹䛧䛯䛜䛳䛶䚸Fig.3 䛷☜ㄆ䛥䜜䜛⥺ᮦ㏦䜚㏿ᗘ䛜ቑຍ䛩䜛䛻క䛖 Jc 䛾ྥୖ⋡䛾ῶᑡ䛿 a ㍈㓄ྥ⢏䛾ቑຍ䛻䜘䜛 Jc 䛾పୗ䛜ᨭ㓄ⓗ䛻䛺䜛䛯䜑䛷䛒䜛䛸᥎ᐹ䛥䜜䜛䚹ᙜ᪥䛿 with Mask ཬ䜃 without Mask 䛾⾲㠃ᙧ≧䜔⤖ᬗ㓄ྥᛶ䛻䛴䛔䛶䜒㆟ㄽ䛩䜛䛸䛸䜒䛻㧗 Jc 㛗ᑻ⥺ᮦ䛻㛤Ⓨ≧ἣ䛻䛴䛔䛶Ⓨ⾲䛩䜛ணᐃ䛷䛒䜛䚹

Fig. 1 Schematic drawing of RTR-system PLD with Mask

'HSRVLWLRQDUHDZLWK0DVN

Fig. 2 Composition ratio and deposition rate of fixed
PLD-SmBCO CCs.

Fig. 3 Jc at 77 K for the SmBa2Cu3Oy coated conductors with orwithout Mask㻌㻌㻌㻠㻚ㅰ㎡㻌ᮏ ◊ ✲ ࡢ ୍ 㒊 ࡣ ࠊ JSPS ⛉ ◊ ㈝ (15H04252, 15K14301,
15K14302,16H04512 ཬࡧ 16K20898)࡜ඛ➃ⓗపⅣ⣲ᢏ⾡㛤Ⓨ(JST-ALCA)ཬࡧྡ኱-⏘⥲◊࢔ࣛ࢖࢔ࣥࢫ஦ᴗ࠿ࡽࡢຓ
ᡂࢆཷࡅ࡚ᐇ᪋ࡋࡓࡶࡢ࡛࠶ࡿࠋࡲࡓࠊᮏ◊✲࡛ࡣࠊᰴᘧ
఍♫ࣇࢪࢡࣛ㣤ᓥᗣ⿱ᵝࡼࡾ㔠ᒓࢸ࣮ࣉ࡟㛵ࡋ࡚ᚚ༠ຊ
ࢆᚓࡓࠋ

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第95回

2017年度秋季低温工学・超電導学会

1A-a03

Y 系線材プロセス (1)ࢹࣗ࢔ࣝࣅ࣮࣒࡟ࡼࡿ࣮ࣞࢨ࣮ࢫࢡࣛ࢖ࣅࣥࢢຍᕤࡢ㏿ᗘྥୖ
Increase of speed of laser scribing process by dual beam㻌⏫㻌 ᩗே䠈⾰ᩫ㻌㢧䠈࿴Ἠ㍤㑻䠄⏘⥲◊䠅㻌
Takato MACHI䠈 Akira Ibi, Teruo Izumi (AIST)
E-mail: t.machi@aist.go.jp㻌㸬ࡣࡌࡵ࡟
REBa2Cu3O7-d (REBCO)⥺ᮦࢆ㉸㟁ᑟ࣐ࢢࢿࢵࢺ࡟ᛂ⏝ࡍࡿୖ࡛஺ὶᦆኻࡢపῶ࠾ࡼࡧ㐽ⶸ☢ሙࡢᙳ㡪ࡢపῶࡀᚲせ୙ྍḞ࡛࠶ࡿࠋࡑࡢࡓࡵ࡟ᡃࠎࡣᏳᐃ໬ᒙ࡜㉸㟁ᑟᒙࢆ⁁≧࡟ษ๐ࡍࡿ࣮ࣞࢨ࣮ࢫࢡࣛ࢖ࣅࣥࢢἲࢆ⏝࠸࡚⥺ᮦࡢ⣽⥺ຍᕤࢆ⾜ࡗ࡚࠸ࡿ>@ࠋࡇࢀࡲ࡛࢚࢟ࢩ࣐࣮ࣞࢨ࣮ .U) ࢆ⏝࠸ࡓ㛗ᑻࢫࢡࣛ࢖ࣅࣥࢢ⿦⨨ࡢ㛤Ⓨࢆ⾜࠸㸪⁁ᖜࡢไᚚᛶ࡟ඃࢀ㸪ຍᕤ࡟ࡼࡿຎ໬ࢆ⏕ࡌ࡟ࡃࡃ㸪๤㞳ᙉᗘࡶ⥔ᣢ࡛ࡁ㸪㛗ᑻ⥺ᮦ࡟㐺⏝࡛ࡁࡿᡭἲ࡛࠶ࡿࡇ࡜ࢆ♧ࡋ࡚ࡁࡓࠋḟ࡟ඞ᭹ࡋ࡞
ࡃ࡚ࡣ࡞ࡽ࡞࠸ᢏ⾡ㄢ㢟ࡣ㸪ຍᕤ㏿ᗘࡢྥୖ࡛࠶ࡿࠋ
㛤Ⓨࡋࡓ⿦⨨࡛ࡣ୍ᗘ࡟㸯ᮏࡢࣅ࣮࣒ࡋ࠿↷ᑕ࡛ࡁ࡞࠸
ࡇ࡜ࡀຍᕤ㏿ᗘࢆᚊ㏿ࡍࡿ᭱኱ࡢせᅉ࡛࠶ࡗࡓࠋ࣮ࣞࢨ࣮※࡜ࡋ࡚⏝࠸࡚࠸ࡿࢥࣄ࣮ࣞࣥࢺ♫ࡢ࢚࢟ࢩ࣐࣮ࣞࢨ࣮ࡣ࢞ࢫ
࣮ࣞࢨ࣮࡛࠶ࡿࡓࡵ㸪ᅛయ࣮ࣞࢨ࣮࡯࡝ࡢᙉ࠸࢞࢘ࢩ࢔ࣥᡂ
ศࡀ࠶ࡿࢃࡅ࡛ࡣ࡞࠸ࡀ㸪ගᏛ࣐ࢫࢡ࡟ࡼࡗ࡚㛗᪉ᙧ࡟ᩚᙧ
ࡉࢀࡓ࣮ࣞࢨ࣮ࣅ࣮࣒ࡣᆒ୍࡛࡞ࡃ㸪୰ኸ㒊࡟ྥ࠿ࡗ࡚ᙉᗘ
ࡀ㧗ࡃ࡞ࡿࡓࡵ㸪୍ᗘ࡟㸯ᮏࡢࣅ࣮࣒ࡋ࠿సࡾฟࡍࡇ࡜ࡀ࡛
ࡁ࡞࠿ࡗࡓࠋ
ࡑࡇ࡛㸪⥺ᮦࡢᖜ᪉ྥ࡟┦ᙜࡍࡿ᪉ྥ࡟ࣅ࣮࣒࣍ࣔࢪࢼ࢖
ࢨ࣮ࢆᑟධࡍࡿࡇ࡜࡟ࡼࡗ࡚࣐ࢫࢡ㠃࡛ࡢࣅ࣮࣒ᙉᗘࢆᆒ୍
࡟ࡍࡿࡇ࡜ࢆヨࡳ㸪ᚓࡽࢀࡓᆒ୍ࣅ࣮࣒࡟ࡼࡾࢹࣗ࢔ࣝࣅ࣮
࣒ࢆసࡾฟࡋ࡚㸰ᮏྠ᫬ࡢࢫࢡࣛ࢖ࣅࣥࢢࢆ⾜ࡗࡓ⤖ᯝࢆሗ࿌ࡍࡿࠋ㸬ᐇ㦂᪉ἲ  ⿦⨨タィ ࢹࣗ࢔ࣝࣅ࣮࣒໬࡟ࡣ⥺ᮦࡢᖜ᪉ྥ㸦▷㍈᪉ྥ㸧࡛ࡢ࣮ࣞࢨ࣮ࣅ࣮࣒ᙉᗘࡢᆒ୍໬ࡀᚲせ࡛࠶ࡿࠋ⥺ᮦࡣ୍ᐃࡢ㏿ᗘ࡛
ᦙ㏦ࡉࢀ࡚࠾ࡾ㸪ࡑࡇ࡟㛗᪉ᙧ࡟ᩚᙧࡉࢀࡓࣃࣝࢫࣅ࣮࣒ࡀ
↷ᑕࡉࢀࡿࡢ࡛㸪⥺ᮦࡢ㛗ᡭ᪉ྥࡢᆒ୍ᗘࡣᚲせ࡜ࡋ࡞࠸ࠋ
ᨵ㐀ࡍࡿගᏛ⣔ࡢᴫᛕᅗࢆᅗ㸯࡟♧ࡋࡓࠋ  ࣅ࣮࣒ࡢᆒ୍ᛶࡢほᐹ࡜ 5(%&2 ⥺ᮦ࡛ࡢຍᕤ ⥺ᮦ㠃࡛ࡢࣅ࣮࣒ࡢᙉᗘศᕸࡣࣅ࣮࣒ࣉࣟࣇ࢓࢖࣮ࣛࢆ⏝࠸࡚ほᐹࡋࡓࠋࡲࡓ $J ཌ wP ࡢ (X%&2 ⥺ᮦ࡟ᙧᡂࡋࡓ㸰ᮏࡢ⁁ࡢ῝ࡉࢆ㉮ᰝᆺ࣮ࣞࢨ࣮㢧ᚤ㙾࡛ほᐹࡋࡓࠋ
㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ ᅗ㸰࡟⥺ᮦ㠃࡛ࡢ࣮ࣞࢨ࣮ࡢᙉᗘศᕸࡢほᐹ⤖ᯝࢆ♧ࡍࠋᨵ㐀ᚋ࡟࣐ࢫࢡࢆᢤ࠸࡚ࣅ࣮࣒ᙉᗘࢆ ᐃࡋࡓሙྜ D ࡟ࡣ㸪ᖜ᪉ྥ࡟ wP ࡢᆒ୍࡞ࣅ࣮࣒ࣉࣟࣇ࢓࢖ࣝࡀᚓࡽࢀ㸪タィ್ wP ࡼࡾࡶᆒ୍ᖜࡀᗈࡃ࡜ࢀࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ࣐ࢫࢡ
ࢆᤄධࡋ࡚ࢹࣗ࢔ࣝࣅ࣮࣒࡜ࡋࡓሙྜ E ࡛ࡶ㸪ᙉᗘࡀᆒ୍࡞
㸰ᮏࡢࣅ࣮࣒ࢆᚓࡿࡇ࡜࡟ᡂຌࡋࡓࠋ
(b)

(a)





Fig.2 Beam profiles obtained by beam profiler, (a) a profile without mask
after modification, (b) a profile of dual beam after modification.

 ᅗ  ࡟㸰ᮏࡢࣅ࣮࣒࡟ࡼࡗ࡚ࢫࢡࣛ࢖ࣅࣥࢢຍᕤࡋࡓ⁁ࡢ῝ࡉࡢ࢚ࢿࣝࢠ࣮ᐦᗘ౫Ꮡᛶࢆ♧ࡍࠋ㸰ᮏࡢࣅ࣮࣒ࡢ῝ࡉศᕸࡣ࡯ࡰྠ୍࡜࡞ࡾ㸪タィ㏻ࡾ࡟ྠ᫬࡟㸰ᮏࡢࢫࢡࣛ࢖ࣅࣥ
ࢢຍᕤࡀྍ⬟࡜࡞ࡗࡓࡇ࡜ࢆ♧ࡏࡓࠋFig.3 The energy density dependence of the slope depth in

Fig.1 Concept of optical design for uniformity of laser beamsimultaneous laser scribing processing.

 ▷㍈᪉ྥࡢࣅ࣮࣒ࢆᆒ୍໬ࡍࡿ᪉ἲ࡜ࡋ࡚㸪ࢩࣜࣥࢻࣜ࢝
ࣝࣞࣥࢬࢆ▷㍈᪉ྥ࡟」ᩘ⤌ࡳྜࢃࡏࡓࡶࡢࢆ㸰ᯛࢭࢵࢺ࡟
ࡋࡓ᪉ᘧ㸦࣍ࣔࢪࢼ࢖ࢨ࣮㸧ࢆ᥇⏝ࡋࡓࠋࡲࡓ࣐ࢫࢡ┤๓ࡢࣇ࢕࣮ࣝࢻࣞࣥࢬ㠃୍࡛ᐃࡢ኱ࡁࡉ࡜࡞ࡿࡼ࠺࡟ࡍࡿࡓࡵࡢ
ࢥࣥࢹࣥࢧ࣮ࣞࣥࢬࢆタࡅࡓࠋ࣐ࢫࢡࢆ㏻㐣ࡋࡓࣅ࣮࣒ࢆ↷ᑕࡍࡿࡓࡵ࡟ࡶ᪂ࡓ࡞ࣇ࢕࣮ࣝࢻࣞࣥࢬࢆタࡅࡓࠋ⥺ᮦ㠃࡛ᆒ୍࡞⠊ᅖࡀᖜ᪉ྥ࡛ PP ௨ୖ࡜タィࡋࡓࠋࡇࢀ
ࡣ㸪PP ᖜ⥺ᮦࢆ  ศ๭㸦PP 㛫㝸࡛ࢫࢡࣛ࢖ࣅࣥࢢ㸧ຍᕤࡍࡿࡓࡵ࡛࠶ࡿࠋ ௒ᚋࡣ㸪㞟ගࣞࣥࢬࡢศゎ⬟ࢆ㧗ࡵࡿࡇ࡜࡟ࡼࡗ࡚ࣅ࣮࣒
ࡢᩘࢆቑຍࡉࡏࡿᢏ⾡ࢆ㛤Ⓨࡍࡿࠋ ㅰ㎡ᮏ◊✲ࡣࠊ0(7,㸪$0('࠾ࡼࡧ1('2ࡢጤク࡟ࡼࡾᐇ᪋ࡋࡓࡶ
ࡢ࡛࠶ࡿࠋ

 ཧ⪃ᩥ⊩
[1] T. Machi, et al., Supercond. Sci. Technol. 26 (2013).



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2017年度秋季低温工学・超電導学会

1A-a04

Y 系線材プロセス (1)㓄ྥ 㻯㼡 䝔䞊䝥ୖ䛻ᑟ㟁ᛶ୰㛫ᒙ䜢㓄⨨䛧䛯ప䝁䝇䝖 㻾㻱㻮㻯㻻 ⥺ᮦ䛾᳨ウ㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㻸㼛㼣㻙㼏㼛㼟㼠㻌㻾㻱㻮㻯㻻㻌㻯㻯㻌㼁㼟㼕㼚㼓㻌㻯㼛㼚㼐㼡㼏㼠㼕㼢㼑㻌㻮㼡㼒㼒㼑㼞㻌㻸㼍㼥㼑㼞㻌㼛㼚㻌㼀㼑㼤㼠㼡㼞㼑㼐㻌㻯㼡㻌㼀㼍㼜㼑㻌㻌㻌ᅵ஭ ಇဢ(ி኱㸪JST-ALCA)㸪᳃ᮧ ᓅ㞝(ி኱)㸪ᇼ஭ ⁠(ி኱㸪JST-ALCA); ୍℩ ୰(㟁୰◊㸪JST-ALCA)
DOI Toshiya (Kyoto Univ., JST-ALCA), MORIMURA Takeo (Kyoto Univ.), HORII Shigeru (Kyoto Univ., JST-ALCA);ICHINOSE Ataru (CRIEPI, JST-ALCA)
E-mail: doi@device.energy.kyoto-u.ac.jp䃗ἲ䛚䜘䜃ᴟⅬᅗἲ䠅⤖ᯝ䛛䜙䚸Nb-STO ᒙ䛚䜘䜃 YBCO ᒙ㻝㻚㻌䛿䛨䜑䛻㻌
ᾮయ❅⣲෭༷䛷౑⏝ྍ⬟䛺 Y ⣔⥺ᮦ䛾㛤Ⓨ䛜㐍䜏䚸⌧ᅾ䛿Ⰻዲ䛺 2 ㍈㓄ྥ䜢᭷䛧䛶䛔䜛䛣䛸䛜☜ㄆ䛷䛝䛯䚹

IBAD ἲ䜒䛧䛟䛿 RABiTS ἲ䛻䜘䛳䛶〇㐀䛥䜜䛯 Y ⣔㉸㟁ᑟ

ᅗ 1 䛻䚸YBCO/Nb-STO/Ni/Cu/SUS316 䝔䞊䝥ヨᩱ䛾 ᐃ⥺ᮦ䛜ᕷ㈍䛥䜜䛶䛔䜛䚹䛧䛛䛧䚸䛹䛱䜙䛾⥺ᮦ䜒㠀ᖖ䛻㧗౯᱁⤖ᯝ䜢䚸᭷㝈せ⣲ἲ(FEM)䛻䜘䜛䝅䝭䝳䝺䞊䝅䝵䞁⤖ᯝ䛸ే䛫䛷䛒䜛䛯䜑䚸୍⯡䜈䛾ᬑཬ䛜㐍䜎䛺䛔≧ἣ䛻䛒䜛䚹䛣䜜䜙 Y ⣔䛶♧䛧䛯䚹Ic 䛿 0.94 A䚸Jc 䛻᥮⟬䛩䜛䛸 2.5 MA/cm2 䛸༑ศ䛺್⥺ᮦ䛾୰䛷ᇶᮦ䝔䞊䝥䚸䛚䜘䜃 Ag ᒙ䛿኱䛝䛺䝁䝇䝖䜴䜶䞊䝖䛷䛒䜛䛣䛸䛜☜ㄆ䛷䛝䛯䚹ᅗ୰䚸㉥䛾ᐇ⥺䛿 n ್䝰䝕䝹䛷ィ⟬䜢༨䜑䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹䛣䜜䜙䛾㒊ศ䛾኱ᖜ䛺䝁䝇䝖పῶ䛧䛯 I-V ᭤⥺䚸4 ᮏ䛾◚⥺䛿 Nb-STO ᒙ䛾᢬ᢠ⋡䜢ኚ໬䛥䛫䜢ᅗ䜛䛯䜑䛻䛿䠈䝝䝇䝔䝻䜲䜔 NiW ྜ㔠䝔䞊䝥䜢Ᏻ౯䛺䝁䝰䛶 FEM 䛷ィ⟬䛧䛯 I-V ᭤⥺䛷䛒䜛䚹 ᐃ⤖ᯝ䛿䚸Nb-STO ᒙ䞁䝯䝍䝹䜢⏝䛔䛯ᇶᮦ䝔䞊䝥䛻ኚ᭦䛩䜛䛸ྠ᫬䛻䚸YBCO ᒙ䛾᢬ᢠ⋡䜢 1 䃈cm䚸5 䃈cm 䛸䛧䛶ィ⟬䛧䛯 I-V ᭤⥺䛾㛫䛻䛾ୖ䛻Ᏻᐃ໬ᒙ䜢ᙧᡂ䛩䜛䛯䜑䛻୙ྍḞ䛺 Ag ᒙ䜢୙せ䛻䛩᮶䛶䛔䜛䛣䛸䛛䜙䚸㏻㟁㟁ὶ䛜 Ic ௨ୖ䛻䛺䛳䛯᫬䚸㟁ὶ䛜䜛᪂䛧䛔⥺ᮦᵓ㐀䛾᥇⏝䛜᭷ຠ䛸⪃䛘䜙䜜䜛䚹

Nb-STO ᒙ䜢㏻䜚䛼䛡䛶㓄ྥ Cu 䝔䞊䝥䛻ศὶ䛧䛶䛔䜛䛣䛸䛜ᡃ䚻䛿䚸䛣䜜䜎䛷⤯⦕ᛶ㓟໬≀䛜⏝䛔䜙䜜䛶䛝䛯୰㛫ᒙ䛻☜ㄆ䛷䛝䛯䚹

YBCO/㻌௨ ୖ 䛾 䛣 䛸 䛛 䜙 䚸 ᪂ つ 䛺 ⥺ ᮦ ᵓ 㐀

SrTi0.95Nb0.05O3/Ni/{100}<001>Cu 䝔䞊䝥ᵓ㐀䜢ᥦ᱌䛧[1, 2]䚸

YBCO/Nb-STO/Ni/Cu/SUS316 䝔䞊䝥䛸䛩䜛䛣䛸䛷䚸ᇶᮦ䛸䛧᪂ᵓ㐀䛾▷ᑻ⥺ᮦ䛷 2.6 MA/cm2 (at 77 K, ⮬ᕫ☢ሙ୰䠅䛸ᐇ䛶౑⏝䛩䜛⣧ Cu 䝔䞊䝥䛻䚸䝔䞁䝥䝺䞊䝖ᒙ䛸Ᏻᐃ໬ᒙ䛾ᙺ๭⏝⥺ᮦ䛸ྠ➼䛾㧗䛔 㻶㼏 䛜ᚓ䜙䜜䜛䛣䛸䜢ሗ࿌䛧䛶䛝䛯㼇㻟㼉䚹௒ᅇ䚸䜢ྠ᫬䛻ᢸ䜟䛫䜛䛣䛸䛜ྍ⬟䛷䛒䜛䛣䛸䛜☜ㄆ䛷䛝䛯䚹䛴䜎䜚䚸㏻㟁㟁ὶ䛜 Ic ್䜢㉸䛘䛯㝿䛻䚸㓄ྥ㖡䝔䞊䝥䛻㟁ὶ䛜ᅇ㑊᪂つᵓ㐀䛸䛩䜛䛣䛸䛷䚸㧗౯䛺 Ag 䜢ᚲせ䛸䛧䛺䛔 REBCO ⥺䛩䜛䛣䛸䜢☜ㄆ䛧䛯䛾䛷ሗ࿌䛩䜛䚹㻌ᮦ䛜స〇ྍ⬟䛸䛺䜛䛣䛸䛜ศ䛛䜛䚹ᑟ 㟁 ᛶ 㓟 ໬ ≀ 䜢 ᥇ ⏝ 䛧 䛯 ᪂ つ 䛺㻞㻚㻌ᐇ㦂᪉ἲ
ᇶᮦ䛻䛿⏣୰㈗㔠ᒓᕤᴗ〇䠄ᕷ㈍䠅䛾 Ni 䜑䛳䛝{100}<001>⤖ ᬗ 㞟 ྜ ⤌ ⧊ Cu/SUS316 ㈞ ྜ 䛫 䝔 䞊 䝥 䜢 ⏝ 䛔 䛯 䚹
SrTi0.85Nb0.15O3 (Nb-STO)䛚䜘䜃 YBCO ᒙ䛾స〇䛻䛿 KrF 䜶䜻䝅䝬䝺䞊䝄䞊䜢ග※䛸䛩䜛䝟䝹䝇䝺䞊䝄䞊⵨╔ἲ䠄PLD ἲ䠅䜢⏝䛔䛯䚹SrTi0.85Nb0.15O3䚸YBCO ᒙ䛾ཌ䛥䛿䛭䜜䛮䜜 310㻌
nm䚸190 nm 䛸䛧䛯䚹స〇䛧䛯ⷧ⭷䛾⾲㠃≧ែ䛾ホ౯䛿㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾(SEM)䛻䜘䜚䚸㓄ྥᗘ䛾ホ౯䛿 X ⥺ᅇᢡ䛻䜘䜚⾜䛳䛯䚹䜎䛯䚸ྛᒙ䛾ཌ䛥䛿㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾䠄㼀㻱㻹䠅䛻䜘䜛
ヨᩱ᩿㠃䛾ほᐹ⤖ᯝ䜘䜚ồ䜑䛯䚹I-Vᐃ䛻⏝䛔䛯ヨᩱ䛾 YBCO ᒙ㒊ศ䛿䝬䝇䜽䜢᥃䛡䛯ᚋ䚸䝺䞊䝄䞊䜢↷ᑕ䛩䜛䛣䛸䛷㛗䛥 10 mm䚸ᖜ 0.2 mm 䛻ຍᕤ䛧䛯䚹༳ຍ☢ሙ↓䛧䛾≧ែ䛷ヨᩱ䜢ᾮయ❅⣲䛻ᾐₕ䛧䛺䛜䜙䚸┤ὶ
4 ➃Ꮚἲ䛻䜘䜚 I-Vᐃ䜢⾜䛳䛯䚹

㻟㻚㻌⤖ᯝ䛸⪃ᐹ㻌

Fig. 1 I-V characteristics of the YBCO/Nb-STO/Ni/Cu/SS316
tape, comparing with calculated curves by a finite element
method.
ཧ⪃ᩥ⊩㻌Ni 䜑䛳䛝{100}<001>⤖ᬗ㞟ྜ⤌⧊ Cu/SUS316 ㈞ྜ䛫䝔䞊䝥䠄Ni/Cu/SUS316 䝔䞊䝥䠅ୖ䛻䚸Nb-STO ᑟ㟁ᛶ୰㛫ᒙ䜢ᙧᡂ䛧䚸䛭䛾ୖ䛻 YBCO ᒙ䜢స〇䛧䛯䚹X ⥺ᅇᢡ ᐃ䠄䃗-2[1] ᅵ஭䜙䚸ᛂ⏝≀⌮ 84(2015) 419䚹[2] Ichinose et. al., Jpn. J. Appl. Phys. 56(2017)103101.
[3] Doi et. al., Materials Trans. 58(2017)1493.

― 4 ―

第95回

2017年度秋季低温工学・超電導学会

1A-a05

Y 系線材プロセス (1)㓄ྥ 㻯㼡 䝔䞊䝥ୖ䛻ᑟ㟁ᛶ୰㛫ᒙ䜢㓄⨨䛧䛯 㼅㻮㻯㻻 ⥺ᮦ䛾ᚤ⣽⤌⧊㻌㻹㼕㼏㼞㼛㼟㼠㼞㼡㼏㼡㼠㼡㼞㼑㼟㻌㼛㼒㻌㼅㻮㻯㻻㻌㻯㻯㻌㼁㼟㼕㼚㼓㻌㻯㼛㼚㼐㼡㼏㼠㼕㼢㼑㻌㻮㼡㼒㼒㼑㼞㻌㻸㼍㼥㼑㼞㻌㼛㼚㻌㼀㼑㼤㼠㼡㼞㼑㼐㻌㻯㼡㻌㼀㼍㼜㼑㻌㻌୍℩㻌 ୰㻌 䠄㟁୰◊㻘㻌㻶㻿㼀㻙㻭㻸㻯㻭䠅䠗㻌 ᳃ᮧ㻌 ᓅ㞝䠄ி኱䠅䠈ᇼ஭㻌 ⁠䠈ᅵ஭㻌 ಇဢ㻌 䠄ி኱㻘㻌㻶㻿㼀㻙㻭㻸㻯㻭䠅㻌㻵㻯㻴㻵㻺㻻㻿㻱㻌㻭㼠㼍㼞㼡㻌㻔㻯㻾㻵㻱㻼㻵㻘㻌㻶㻿㼀㻙㻭㻸㻯㻭㻕㻧㻌㻹㻻㻾㻵㻹㼁㻾㻭㻌㼀㼍㼗㼑㼛㻌㻔㻷㼥㼛㼠㼛㻌㼁㼚㼕㼢㻚㻕㻘㻌㻌 㻴㻻㻾㻵㻵㻌㻿㼔㼕㼓㼑㼞㼡㻘㻌㻰㻻㻵㻌㼀㼛㼟㼔㼕㼥㼍㻌㻔㻷㼥㼛㼠㼛㻌㼁㼚㼕㼢㻚㻘㻌㻶㻿㼀㻙㻭㻸㻯㻭㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼍㼕㻬㼏㼞㼕㼑㼜㼕㻚㼐㼑㼚㼗㼑㼚㻚㼛㼞㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌ไ㝈ど㔝㟁Ꮚ⥺ᅇᢡ䠄6$('䠅䜢ᅗ䠍䛻♧䛩䚹1E672<%&2᭱㏆䛷䛿ᾮయ❅⣲෭༷䛷౑⏝ྍ⬟䛺 < ⣔⥺ᮦ䛾㛤Ⓨ䛜⏺㠃䛿䝅䝱䞊䝥䛷 1E672 ୰㛫ᒙ䛸 <%&2 ᒙ䛾㛫䛷཯ᛂ䜔㐍䜏䠈,%$' ἲ䜒䛧䛟䛿 5$%L76 ἲ䛻䜘䛳䛶〇㐀䛥䜜䛯 < ⣔ᣑᩓ䛿⏕䛨䛶䛔䛺䛔䛣䛸䛜䜟䛛䜛䚹('; ศᯒ䜢⾜䛳䛯⤖ᯝ䛛㉸㟁ᑟ⥺ᮦ䛜ᕷ㈍䛥䜜䛶䛔䜛䚹䛧䛛䛧䠈䛹䛱䜙䛾⥺ᮦ䜒㠀ᖖ䛻䜙䜒ྠᵝ䛾䛣䛸䛜☜ㄆ䛷䛝䛯䚹䜎䛯䠈1L1E672 ⏺㠃䜒䝅䝱䞊㧗౯᱁䛷䛒䜛䛯䜑䠈୍⯡䜈䛾ᬑཬ䛜㐍䜎䛺䛔≧ἣ䛻䛒䜛䚹䛣䝥䛷཯ᛂ䛒䜛䛔䛿ᣑᩓᒙ䛜Ꮡᅾ䛫䛪䠈('; ศᯒ䜢⾜䛳䛯⤖䜜䜙 < ⣔⥺ᮦ䛾୰䛷ᇶᮦ䝔䞊䝥䠈䛚䜘䜃䠈㉸㟁ᑟᒙୖ䛻㟁ᯝ䛛䜙䜒⏺㠃䛻 1L2 䛺䛹䛾཯ᛂᒙ䛿Ꮡᅾ䛧䛺䛔䛣䛸䛜☜ㄆ䛷ẼⓗᏳᐃ໬ᒙ䛾ཌ䛔 &X 䜢స〇䛩䜛䛯䜑䛻㑊䛡䜙䜜䛺䛔 $J䛝䛯䚹⣙ QP 䛾 1E672 ᒙ䜢⏝䛔䛶స〇䛧䛯ヨᩱ䛻䛚䛔ᒙ䛿ᮦᩱ䝁䝇䝖䛻䛚䛔䛶䜴䜶䞊䝖䜢༨䜑䛶䛔䜛䚹䛧䛯䛜䛳䛶䠈

䛶䛿䠈1L1E672 ⏺㠃䛻୍㒊ⷧ䛔 1L2 ᒙ䛜⏕ᡂ䛧䛶䛔䛯䛜኱ᖜ䛺䝁䝇䝖పῶ䜢ᅗ䜛䛯䜑䛻䛿䠈䝝䝇䝔䝻䜲䜔 1L: ྜ㔠䝔>@䠈௒ᅇ䠈1E672 ᒙ䛾ཌ䛥䜢᭱㐺໬䛩䜛䛣䛸䛷䠈ẚ㍑ⓗⷧ䛔䞊䝥䜢Ᏻ౯䛺䝁䝰䞁䝯䝍䝹䜢⏝䛔䛯ᇶᮦ䝔䞊䝥䛻ኚ᭦䛩䜛䛸

QP 䛾 1E672 ᒙ䛷 <%&2 స〇୰䛾㓟⣲ᣑᩓ䜢䝤䝻䝑䜽䛸䜒䛻䠈<%&2 ᒙ䛾ୖ䛻Ᏻᐃ໬ᒙ䜢ᙧᡂ䛩䜛䛯䜑䛻୙ྍḞ䛺

䛧䛶䠈1L 䜑䛳䛝ᒙ⾲㠃䛷䛾⤯⦕ᛶ 1L2 ᒙ䛾⏕ᡂ䜢㜵Ṇྍ⬟$J ᒙ䜢୙せ䛻䛩䜛᪂䛧䛔⥺ᮦᵓ㐀䛜ᚲせ䛸䛺䜛䚹䛺䛣䛸䛜䜟䛛䛳䛯䚹ᡃ䚻䛿䠈⤯⦕ᛶ㓟໬≀䛜⏝䛔䜙䜜䛶䛝䛯୰㛫ᒙ䛻ᑟ㟁ᛶ௨ୖ䛾䛣䛸䛛䜙䚸ᑟ㟁ᛶ୰㛫ᒙ䛸䛧䛶 䡊䡉䛾ཌ䛥䛾 1E

㓟໬≀䜢᥇⏝䛧䛯᪂つ䛺 <%&21E6721L^`!&X

672 䜢⏝䛔䜛䛣䛸䛷⏺㠃䛻཯ᛂ⏕ᡂ≀䛜Ꮡᅾ䛧䛺䛔䠈Ⰻዲ䛺䝔䞊䝥ᵓ㐀䜢ᥦ᱌䛧>@䠈⣙ QP 䛾䠪E672 ୰㛫ᒙୖ䛻 5(%&2 ⥺ᮦ䛜స〇ྍ⬟䛷䛒䜛䛣䛸䛜䜟䛛䛳䛯䚹
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 䠄DW  . ⮬ᕫ☢ሙ䠅䛾㧗䛔䠦

0$FP䜢᭷䛩䜛 <%&2 ᒙ䛾䠟స〇䛻ᡂຌ䛧䛯䚹䛧䛛䛧䠈䛣䛾⥺ᮦ䛷䛿 1L 䛸 1E672 䛾⏺㠃䛻 1L 䛾㓟໬≀䛜⏕ᡂ䛧䛶䛔䜛䛣䛸䛜䜟䛛䛳䛯 >@䚹䜎䛯䠈1E
672 ཌ䜢 QP ⛬ᗘ䛻䛩䜛䛸⏺㠃䛾 1L 㓟໬≀䛜䜋䛸䜣䛹⏕>@ ᅵ஭䜙䚸ᛂ⏝≀⌮   䠈SS

ᡂ䛧䛺䛔䛣䛸䜒☜ㄆ䛧䛯 >@䚹䛭䛣䛷䠈௒ᅇ䠈1E672 ᒙ䛾ཌ䛥

>@ ᅵ஭䜙䚸᪥ᮏ㔠ᒓᏛ఍ㄅ䚸༳ๅ୰

䜢᭱㐺໬䛧䛶 <%&2 ᒙ䜢స〇䛧䛯䛸䛣䜝䠈 ㍈㓄ྥ䛧䠈㻌>@$,FKLQRVH6+RULL7'RL--$3

0$FP 䛾䠦䠟䛜ᚓ䜙䜜䛯䛾䛷䠈ෆ㒊⤌⧊䜢㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾䡂䛷ㄪ䜉䛯䚹
㻌㻞䠊ᐇ㦂᪉ἲ㻌ᇶ ᮦ 䛻 䛿 ⏣ ୰ ㈗ 㔠 ᒓ ᕤ ᴗ 〇 䠄 ᕷ ㈍ 䠅 䛾 1L 䜑 䛳 䛝^`!⤖ᬗ㞟ྜ⤌⧊ &X686 ㈞ྜ䛫䝔䞊䝥䜢⏝䛔
䛯䚹6U7L1E2 1E672 䛚䜘䜃 <%&2 ᒙ䛾స〇䛻䛿.U) 䜶䜻䝅䝬䝺䞊䝄䞊䜢ග※䛸䛩䜛䝟䝹䝇䝺䞊䝄䞊⵨╔ἲ
䠄3/' ἲ䠅䜢⏝䛔䛯䚹1E672 ᒙ䛾ཌ䛥䛿㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾
䠄7(0䠅䛷ᐇ 䛧䛯⤖ᯝ 㻌 QP 䛷䛒䛳䛯䚹స〇䛧䛯ⷧ⭷䛾㓄ྥᗘ䛾ホ౯䛿 ; ⥺ᅇᢡ䛻䜘䜚⾜䛔䠈ヨᩱ᩿㠃䛾⤌⧊ほᐹ䛚䜘䜃ඖ⣲ศᯒ䛿 7(0 䜢⏝䛔䛯䚹㻌㻟䠊ᐇ㦂⤖ᯝ䛚䜘䜃⪃ᐹ㻌

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䠾

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䠽

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䠿

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1L 䜑䛳䛝^`!⤖ᬗ㞟ྜ⤌⧊ &X686 ㈞ྜ䛫䝔
䞊䝥䠄1L&X686 䝔䞊䝥䠅ୖ䛻䠈1E672 ᑟ㟁ᛶ୰㛫ᒙ䜢ᙧᡂ䛧䚸䛭䛾ୖ䛻 <%&2 ᒙ䜢స〇䛧䛯䚹; ⥺ᅇᢡ

䡁

䡁

ᐃ䠄䃗

䃗ἲ䛚䜘䜃ᴟⅬᅗἲ䠅⤖ᯝ䛛䜙䠈1E672 ᒙ䛚䜘䜃 <%&2 ᒙ䛿Ⰻዲ䛺  ㍈㓄ྥ䜢᭷䛧䛶䛔䜛䛣䛸䛜☜ㄆ䛷䛝䛯䚹
QP 䛾 1E672 ᒙ䜢⏝䛔䛶స〇䛧䛯 <%&21E6721L㻌&X686 䝔䞊䝥ヨᩱ䛾᩿㠃 7(0 ほᐹ⤖ᯝ䛚䜘䜃ྛᒙ䛾 )LJ&URVVVHFWLRQDO7(0LPDJHDQG6$('V D
J  IURP HDFK FLUFOHV LQGLFDWHG LQ WKH 7(0LPDJH

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第95回

2017年度秋季低温工学・超電導学会

1A-a06

Y 系線材臨界電流

UTOC-MOD ἲ䛻䜘䜛 BZO ᑟධ YGdBCO ⥺ᮦ䛾☢⏺୰☢Ẽ㢧ᚤほᐹIn-field Magnetic Microscopy of BaZrO3 Doped YGdBCO Coated Conductor Made by
UTOC-MOD Process㻌㻌ᮾᕝ ⏥ᖹ, 䝰䝝䞁 䝅䝱䝮, 㕥ᮌ ໶, ኱ᮧ ಇ௓, ௒ᮧ ࿴Ꮥ, ஭ୖ ᫀ╬ (஑኱);ῐ㊰ ᬛ (ᮾ໭኱); ୰ᒸ ᫭୍, ࿴Ἠ ㍤㑻 (⏘⥲◊); ᮌ㡲 㝯ᬸ (஑኱)
HIGASHIKAWA Kohei, MOHAN Shyam, SUZUKI Takumi, OMURA Shunsuke, IMAMURA Kazutaka, INOUE Masayoshi (Kyushu Univ.);
AWAJI Satoshi (Tohoku Univ.); NAKAOKA Koichi, IZUMI Teruo (AIST); KISS Takanobu (Kyushu Univ.);
E-mail: kohei@super.ees.kyushu-u.ac.jp
㻝㻚㻌 䛿䛨䜑䛻
TFA-MOD ἲ䛿䚸RE-123 ⥺ᮦ䛾స〇䝥䝻䝉䝇䛾୰䛷䜒䚸ᑗ᮶䛾㔞⏘໬䛻୙ྍḞ䛺ప䝁䝇䝖䝥䝻䝉䝇䛷䛒䜛䛣䛸䛜ᮇᚅ䛥䜜䛶䛔䜛䚹๓ᅇ䛿䚸䛭䛾୰䛷䜒ᴟⷧ⭷䜢✚ᒙ䛧䛶స〇䛩䜛
UTCO-MOD䠄Ultra-Thin-Once-Coating MOD䠅ἲ[1][2] 䛻䜘䛳䛶䚸㢧ⴭ䛺≉ᛶ䛾ྥୖ䛜ぢ䜙䜜䜛䛣䛸䜢䚸ᅄ➃Ꮚἲ䛻䜘䜛ホ౯䛻ᇶ䛵䛔䛶ሗ࿌䛧䛯[3]䚹ᮏሗ࿌䛷䛿䚸㉮ᰝᆺ䝩䞊䝹⣲Ꮚ㢧ᚤ㙾
䠄SHPM䠅䛻䜘䜛ホ౯䛻ᇶ䛵䛝䚸ᐇ㝿䛻䝬䜾䝛䝑䝖ᛂ⏝䛷㔜せ䛸䛺䜛ప㟁⏺㡿ᇦ䛾≉ᛶ䜔䚸ᒁᡤ⮫⏺㟁ὶᐦᗘ䛾✵㛫ᆒ୍ᛶ䛻䛴䛔䛶䚸䛭䛾䝥䝻䝉䝇䛾ඃ఩ᛶ䜢ホ౯䛧䛯䚹

donce =30 nm
㻌Fig. 1. Sheet current density distributions of the magnetizedsamples obtained by the SHPM at 3 T and 20 K.

N

3000

Count

4000

2000

(a) donce =170 nm1000
00.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20
4000
3000
2000

Normalized critical current density Jn(b) donce =
30 nm

1000
0
0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20

Normalized critical current density Jn

Fig. 2. Histograms of normalized critical current density
shown for the two fabrication processes: donce = 170 nm anddonce = 30 nm.

4-probedonce = 170 nmㅰ㎡ᮏ◊✲䛾୍㒊䛿䚸᪥ᮏᏛ⾡᣺⯆఍䛾⛉◊㈝䠄16H02334,
16K14216䠅䛻䜘䜛ຓᡂ䜢ᚓ䛶⾜䛳䛯䜒䛾䛷䛒䜛䚹ཧ⪃ᩥ⊩[1] K. Nakaoka et al., IEEE Trans. Appl. Supercond. 26 (2016) 8000304.
[2] T. Izumi et al., IEEE Trans. Appl. Supercond. 27 (2017) 6601604.
[3] T. Suzuki et al., Abstract of CSSJ Conference 94 (2017) 17.

30.0

donce =
170 nmN㻟㻚㻌 ⤖ᯝ䞉⪃ᐹ㻌
ヨᩱ ᗘ 20 K 䛻䛚䛔䛶እ㒊☢⏺ 3 T 䜢༳ຍ䛧䛯㝿䛻ᚓ䜙䜜䛯䝅䞊䝖㟁ὶᐦᗘศᕸ䜢 Fig. 1 䛻♧䛩䚹donce = 170 nm 䛾ヨᩱ䜘䜚䜒 donce = 30 nm 䛾ヨᩱ䛾᪉䛜䚸⥲⭷ཌ䛜ᑠ䛥䛔䛻䜒䛛䛛䜟䜙䛪䚸㧗䛔䝅䞊䝖㟁ὶᐦᗘ䜢᭷䛧䛶䛚䜚䚸䛣䜜䛿⮫⏺㟁ὶᐦᗘ䛜䛛䛺䜚㧗䛔䛣䛸䜢ព࿡䛧䛶䛔䜛䚹䜎䛯䚸ᮏ䝅䞊䝖㟁ὶᐦᗘศᕸ䛻䛚䛔䛶⮫⏺≧ែ䝰䝕䝹䛛䜙⮫⏺㟁ὶᐦᗘ䛻㐩䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛㡿ᇦ䛻䛴䛔䛶䝠䝇䝖䜾䝷䝮䜢䛸䛳䛯䜒䛾䜢 Fig. 2 䛻♧䛩䚹donce = 30 nm 䛾ヨᩱ䛿䚸⮫⏺㟁ὶᐦᗘ䛾್䛾䜏䛺䜙䛪䚸䛭䛾✵㛫ᆒ୍ᛶ䛻䜒ඃ䜜䜛䛣䛸䛜ᮏᡭἲ䛻䜘䛳䛶᫂䜙䛛䛸䛺䛳䛯䚹䛥䜙䛻䚸☢Ẽ⦆࿴ィ 䛻䜘䜚䚸䛭䜜䛮䜜䛾⮫⏺㟁ὶᐦᗘ䜢ᵝ䚻䛺㟁⏺ᇶ‽䛻ᑐ䛧䛶ᚓ䛯䜒䛾䜢 Fig. 3 䛻♧䛧䛶䛔䜛䚹ᅄ➃Ꮚἲ䛻䜘䜛 ᐃ⤖ᯝ䜒ྜ䜟䛫䛶♧䛧䛶䛔䜛䛜䚸ᅄ➃Ꮚἲ䛷䛿ホ౯䛾ᅔ㞴䛷䛒䛳䛯ᐇ⏝ⓗ䛺ప㟁⏺㡿ᇦ䛻䛚䛔䛶䜒䚸donce =30 nm 䛾ヨᩱ䛾ඃ఩ᛶ䛜ぢ䜙䜜䛶䛔䜛䚹䜎䛯䚸ᮏᡭἲ䛸ᅄ➃Ꮚἲ䛸䛾ᑐᛂ䛿Ⰻ䛟䚸ᮏᡭἲ䛾ᐃ㔞ᛶ䛾☜ㄆ䜒☜ㄆ䛷䛝䛶䛔䜛䚹௨ୖ䛾䜘䛖䛻䚸୍ᅇᙜ䛯䜚䛾ሬᕸ⭷ཌ䜢పῶ䛧䛯
UTCO-MOD ἲ䛿䚸䝬䜾䝛䝑䝖ᛂ⏝䛷㔜せ䛸䛺䜛ప㟁⏺㡿ᇦ䜎䛷⮫⏺㟁ὶᐦᗘ䛻኱䛝䛺ඃ఩ᛶ䜢᭷䛧䛶䛔䜛䛸䛸䜒䛻䚸䛣䛱䜙䜒㔜せ䛸䛺䜛✵㛫ᆒ୍ᛶ䛻㛵䛧䛶䜒ඃ఩ᛶ䛜ぢ䜙䜜䜛㧗䛔䝫䝔䞁䝅䝱䝹䜢᭷䛩䜛〇ἲ䛷䛒䜛䛣䛸䛜䚸ᮏ ᐃ䛻䜘䛳䛶᫂䜙䛛䛸
䛺䛳䛯䚹

0.0

2 mm

Count

㻞㻚㻌 ᐇ㦂᪉ἲ㻌
SHPM 䛻䜘䜛 ᐃ䛿 2 ✀㢮䛾〇ἲ䛾ヨᩱ䛻ᑐ䛧䛶⾜䛳䛯䚹1䛴䛿㉸ఏᑟᒙ䜢 170 nm 䛾⭷ཌ䛷 4 ᅇሬᕸ䛧䛯⥲⭷ཌ 0.75μm 䛾ヨᩱ䠄donce = 170 nm䠅䚸䜒䛖 1 䛴䛿㉸ఏᑟᒙ䜢 30 nm 䛾⭷ཌ䛷 20 ᅇሬᕸ䛧䛯⥲⭷ཌ 0.53 μm 䛾ヨᩱ䠄donce = 30 nm䠅䛷䛒䜛䚹䛭䜜䛮䜜䛻ᑐ䛧䛶䚸2 mm ᖜ 4 mm 㛗䛾ヨᩱ䜢 2 䛴䛪䛴⏝ព䛧䚸ィ 4 䛴䛾ヨᩱ䛻ᑐ䛧䛶䚸እ㒊☢⏺䛧䛯㝿䛾☢⏺ศᕸ䜢ィ 䛧䚸Biiot-Savart ๎䛾㏫ၥ㢟䜢ゎ䛟䛣䛸䛷䚸☢໬䛧䛯ヨᩱ୰䛾䝅䞊䝖㟁ὶᐦᗘศᕸ䜢ホ౯䛧䛯䚹

Sheet current density Js (A/mm)

donce = 30 nm

1T

3T

SHPM

Fig. 3. Current density, J, vs. electric field, E, properties at 20
K obtained for the samples with the two fabrication
processes: donce = 170 nm and donce = 30 nm.

㻌
― 6 ―

第95回

2017年度秋季低温工学・超電導学会

1A-a07

Y 系線材臨界電流䝘䝜䝻䝑䝗䛸✚ᒙḞ㝗䜢ᑟධ䛧䛯 <%&2 ⷧ⭷䛾☢᮰䝢䞁䝙䞁䞁䜾≉ᛶ
Vortex pinning property in YBCO filmcontaining nanorods and stacking faults)F *1P

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1䠊䛿䛨䜑䛻3䠊⤖ᯝ㉸ఏᑟ䝬䜾䝛䝑䝖䜔䜿䞊䝤䝹ᛂ⏝䛻ྥ䛡㉸ఏᑟ⥺ᮦ㛤Ⓨᅗ  䛻㓟⣲䜰䝙䞊䝹䛧䛯 <%&2%+2 ⷧ⭷䛾   㐍䜑䜙䜜䛶䛔䜛䚹<%D&X2G <%&2 䛿☢ሙ୰⮫⏺㟁ὶᐦ
. 䛻䛚䛡䜛 -F 䛾☢ሙ౫Ꮡᛶ䜢♧䛩䚹䜎䛯ᕧどⓗ䝢䞁ຊ )Sᗘ -F ≉ᛶ䛜ඃ䜜䛶䛚䜚䚸☢ሙ୰䛷䜒ᕧ኱䛺㟁ὶ䜢ὶ䛩䛣䛸䛜
-F% 䛾☢ሙ౫Ꮡᛶ䜒♧䛧䛯䚹. 䛷䛿 )S *1P 䛷䛒䜚䚸䛷䛝䜛㉸ఏᑟ⥺ᮦ䛾㛤Ⓨ䛜ᮇᚅ䛥䜜䛶䛔䜛䚹<%&2 䛿≀㉁ᅛ䝘䝜䝻䝑䝗䜢ᑟධ䛧䛯 <%&2 ⷧ⭷䛸䛧䛶䛿኱䛝䛟䛿䛺䛔䚹䛧䛛䛧᭷䛾㉸ఏᑟ≉ᛶ䛸䛧䛶㧗䛔 -F 䜢᭷䛩䜛䛜䚸䛥䜙䛺䜛㧗 -F ໬䛾 . 䛷䛿 )S  *1P 䛸䛺䛳䛶䛚䜚䚸䝬䝖䝸䝑䜽䝇䜢 <%&2䛯䜑䛻䝢䞁䝙䞁䜾䝉䞁䝍䞊䛾ᑟධ䛜⾜䜟䜜䛶䛝䛯䚹%D=U2 䜔䛻㝈ᐃ䛧䛯䜒䛾䛸䛧䛶䛿ᴟ䜑䛶኱䛝䛺್䛻䛺䛳䛶䛔䜛䚹ప 䛷
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࿌䛥䜜䛯>@䚹䛣䛾䜘䛖䛻䝘䝜䝻䝑䝗䝢䞁䝙䞁䜾䛻㓟⣲✵Ꮝศᕸ䛜኱䛝䛟ᙳ㡪䛩䜛䛣䛸䛜᫂䜙䛛䛻䛺䛳䛶䛝䛶䛔䜛䚹䛧䛛䛧㓟⣲୙ᐃẚᛶ䛻╔┠䛧䛯䝘䝜䝻䝑䝗ᵓ㐀䜔䝢䞁䝙䞁䜾ไᚚ䛻㛵䛩䜛◊✲䛿䛣䜜䜎䛷䛻䜋䛸䜣䛹⾜䜟䜜䛶䛣䛺䛛䛳䛯䚹
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䛧䛯ᚋ䚸䛥䜙䛻㏣ຍ䝫䝇䝖䜰䝙䞊䝹䜢⾜䛳䛯䚹䛭䛾⤖ᯝ䚸✚ᒙ
0DJQHWLFILHOG
7Ḟ㝗䛜ᑟධ䛥䜜㧗䛔 -F ≉ᛶ䜢ᚓ䜛䛣䛸䛜䛷䛝䛯䚹ᮏ◊✲䛷䛿㧗 -F 䛾ᶵᵓ䜢᫂䜙䛛䛻䛩䜛䛯䜑䛻䚸㏣ຍ䝫䝇䝖䜰䝙䞊䝹䛧䛯)LJ D  -F% DQG E  )S% FKDUDFWHULVWLFV LQ WKH DQQHDOHG
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㏣ຍ㓟⣲䜰䝙䞊䝹䛻䜘䜛䝘䝜䝻䝑䝗䝢䞁䝙䞁䜾ไᚚ䛾ྍ⬟ᛶཧ⪃ᩥ⊩㻌䛻䛴䛔䛶㆟ㄽ䛩䜛䚹
&&DQWRQLHWDO$&61DQR9RO  S
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2䠊ᐇ㦂᪉ἲ
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0HDVXUHPHQW 6\VWHP 䛷 ᐃ䛧䛯䚹䛥䜙䛻ᮾ໭኱Ꮫ㔠ᒓᮦᩱ◊✲ᡤ㝃ᒓᙉ☢ሙ㉸ఏᑟᮦᩱ䝉䞁䝍䞊䛻䛚䛔䛶 䠉 7䚸䠉. 䛷 -F ᐃ䜢⾜䛳䛯䚹

― 7 ―

第95回

2017年度秋季低温工学・超電導学会

1A-a08

Y 系線材臨界電流㻮㻴㻻 䝘䝜䝻䝑䝗䜢ᑟධ䛧䛯 㻿㼙㻮㻯㻻 㧗㉸ఏᑟⷧ⭷䛻䛚䛡䜛☢໬⦆࿴≉ᛶ㻌Magnetization relaxation in SmBa2Cu3Oy films with BaHfO3 nanorods㻌ᅵᒇ㞝ྖ䠄ྡ኱䠅䠗ᮌෆ຾䠄஑ᕤ኱䠅䠗୍㔝♸ு䚸୕ᾆᓧ䠄ྡ኱䠅䠗ῐ㊰ᬛ䠄ᮾ໭኱䠅䠗ᯇᮏせ䠄஑ᕤ኱䠅䠗ྜྷ⏣㝯䠄ྡ኱䠅
TSUCHIYA Yuji, ICHINO Yusuke, MIURA Shun, YOSHIDA Yutaka (Nagoya Univ.);
AWAJI Satoshi (Tohoku Univ.); KIUCHI Masaru, MATSUMOTO Kaname (Kyushu Institute of Technology)
E-mail: tsuchiya@nuee.nagoya-u.ac.jp㻟䠊ᐇ㦂⤖ᯝ䛚䜘䜃⪃ᐹ㻌 ᅗ 1 䛻䚸BHO ῧຍ SmBCO ⷧ⭷䛻䛚䛡䜛 30 K䚸c ㍈᪉ྥ䛻☢ሙ䜢༳ຍ䛧䛯䛸䛝䛾 S 䛾 BHO ῧຍ㔞౫Ꮡᛶ䜢♧䛩䚹S 䛿䚸
BHO ῧຍ㔞ቑຍ䛻䛸䜒䛺䛔䚸ప☢ሙ(1 T)䛷䛿ቑຍ䛧䛯䛾䛻ᑐ䛧䚸ᙉ☢ሙ(3 䛚䜘䜃 5 T)䛷䛿ῶᑡ䛧䛯䚹YBCO ༢⤖ᬗ䛻ᑐ䛧䛶㔜䜲䜸䞁↷ᑕ䛻䜘䛳䛶ᰕ≧䝢䞁䜢ᑟධ䛩䜛䛸䚸ప☢ሙ䛷䛿☢᮰㔞Ꮚ䛾 2 㔜䜻䞁䜽䛻䜘䛳䛶☢໬⦆࿴䛜ຍ㏿䛩䜛䛣䛸䛜ሗ࿌䛥䜜䛶䛔䜛[2]䚹ᮏ◊✲䛾⤖ᯝ䜒ྠᵝ䛾☢᮰㔞Ꮚ䛾᣺⯙䛔䜢♧၀䛧䛶䛔䜛䚹୍᪉䚸ᙉ☢ሙ୰䛷䛿 BHO 䝘䝜䝻䝑䝗䛾ᑟධ䛜 S 䛾ᢚไ䛻ຠᯝⓗ䛷䛒䜛䛣䛸䛜♧၀䛥䜜䛯䚹㻌 ᅗ 2(a)䛚䜘䜃ᅗ 2(b)䛻䚸↓ῧຍ䛚䜘䜃 2.2vol.%BHO ῧຍ
SmBCO ⷧ⭷䛻䛚䛡䜛 S 䛾☢ሙ ᗘ౫Ꮡᛶ䜢♧䛩䚹୧ᅗ䛻䛚䛡䜛䜹䝷䞊䝇䜿䞊䝹䛿ྠ䛨䛷䛒䜛䚹ᅗ 2(b)䛻䚸2.2vol.%BHO ῧຍヨᩱ䛻䛚䛡䜛 Bĭ = 3.3 T 䜢♧䛧䛯䚹䛣䛾☢ሙ䛿䚸Fp 䛜᭱኱䜢♧䛩☢ሙ䛚䜘䜃 3.8vol.%BHO ῧຍヨᩱ䛾ᖹ㠃 TEM ほᐹ䛛䜙ィ⟬䛧䛯 Bĭ = 5.8 T 䛛䜙⟬ฟ䛧䛯䚹↓ῧຍⷧ⭷䛷䛿 ᗘ䞉☢ሙ䛾ቑຍ䛻䛸䜒䛺䛔 S 䛜༢ㄪቑຍ䛩䜛䛾䛻ᑐ䛧䚸BHO ῧຍⷧ⭷䛷䛿㠀༢ㄪ䛺᣺䜛⯙䛔䛜ぢ䜙䜜䛯䚹≉䛻䚸ప☢ሙ(1 T)䛷
䛿䚸S 䛾 ᗘኚ໬䛻ᑐ䛩䜛ᴟ኱್䛜⌧䜜䚸Bĭ ௜㏆䛻 S 䛾☢ሙ䛻ᑐ䛩䜛ᴟᑠ್䛜ぢ䜙䜜䛯䚹䛣䜜䜙䛾᣺䜛⯙䛔䛿䛭䜜䛮䜜䚸☢᮰㔞Ꮚ䛾 2 㔜䜻䞁䜽䛚䜘䜃䝰䝑䝖⤯⦕యⓗ᣺⯙䛔䛸⪃䛘䜙䜜䜛䚹㻌 ᮏㅮ₇䛷䛿䚸☢໬⦆࿴≉ᛶ䛾⤖ᯝ䛛䜙䚸䝬䜾䝛䝑䝖ᛂ⏝䛻㐺䛧䛯ேᕤ䝢䞁䝙䞁䜾䝉䞁䝍䞊䛾ῧຍ㔞䛻䛴䛔䛶㆟ㄽ䛩䜛䚹ཧ⪃ᩥ⊩
1. S. Miura et al., Appl. Phys. Express 10, 103101 (2017).
2. Y. Yeshurun et al., Rev. Mod. Phys. 68, 911 (1996).

Fig. 1 BHO content dependence of relaxation rate S in
BHO-doped SmBCO films at 30 K and 1, 3, and 5 T.
㻞㻝㻾㼑㼘㼍㼤㼍㼠㼕㼛㼚㻌㼞㼍㼠㼑㻘㻌S㻔B㻘㻌T㻕㻌㻔㼤㻝㻜 㻕
㻞
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㻣

㻢
㻔㼍㻕㻌㼜㼡㼞㼑㻙㻿㼙㻮㻯㻻㻌䟺㼘㼙
㻡
㻠
B㻌㻔㼀㻕

㻞䠊ᐇ㦂᪉ἲ
㻌 PLD ἲ䜢⏝䛔䛶 IBAD ᇶᯈୖ䛻 0-3.8vol.%䛾 BHO 䜢ῧຍ䛧䛯 SmBCO ⷧ⭷䜢స〇䛧䛯䚹ⷧ⭷䜢䝤䝸䝑䝆ຍᕤ䛧䚸ᮾ໭኱㔠◊ᙉ☢ሙ䝉䞁䝍䞊䛻䛚䛡䜛 20 T ㉸ఏᑟ䝬䜾䝛䝑䝖䛸኱㟁ὶᅇ㌿䝥䝻䞊䝤䜢⏝䛔䛶䚸0-15 T䚸4.2-77 K 䛷┤ὶᅄ➃Ꮚἲ䛻䜘䜛 Jc 䛾㍺㏦ ᐃ䜢⾜䛳䛯䚹䜎䛯䚸ⷧ⭷䜢⣙ 2 mm ゅ䛻ຍᕤ䛧䚸䜹䞁䝍䝮䝕䝄䜲䞁♫ MPMS 䜢⏝䛔䛶 0-5 T䚸10-77 K 䛻䛚䛡䜛☢໬䝠䝇䝔䝸䝅䝇䛚䜘䜃☢໬䛾᫬㛫౫Ꮡᛶ䜢 ᐃ䛧䛯䚹☢໬䝠䝇䝔䝸䝅䝇䛛䜙 Jc 䜢䚸☢໬⦆࿴≉ᛶ䛛䜙つ᱁໬☢໬⦆࿴⋡S(= dlnM/dlnt)䜢ホ౯䛧䛯䚹ㅰ㎡㻌 ᮏ◊✲䛿䚸⛉◊㈝(23226014, 15K14301, 15K14302,
15H04252,16K20898,16H04512)䚸JST- ALCA 䛾ຓᡂ䜢ཷ䛡䛶ᐇ᪋䛧䛯䚹⏘⥲◊ ࿴Ἠ㍤㑻Ặ䛛䜙䝔䞊䝥ᇶᯈ䛾ᥦ౪䜢ཷ
䛡䛯䚹

㻟
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㻔㼎㻕㻌㻿㼙㻮㻯㻻㻗㻞㻚㻞㼢㼛㼘㻚㻑 㻮㻴㻻㻌䟺㼘㼙
㻡
㻠

B㻌㻔㼀㻕

㻝䠊䛿䛨䜑䛻㻌REBCO 㧗 ㉸ఏᑟ⥺ᮦ䛿䚸㧗䛔㌿⛣ ᗘ䛸☢ሙ୰䛷㧗䛔⮫⏺㟁ὶᐦᗘ Jc 䛛䜙䚸ḟୡ௦㟁ຊᶵჾ䜈䛾ᛂ⏝䛜ᮇᚅ䛥䜜䛶䛔䜛䚹୍᪉䚸REBCO ⥺ᮦ䛾䝬䜾䝛䝑䝖ᛂ⏝䛻䛚䛔䛶䚸⥺ᮦ䛜䝔䞊䝥ᙧ≧䛷䛒䜛䛣䛸䛻䜘䜛኱䛝䛺㐽ⶸ㟁ὶ䛻㉳ᅉ䛧䛯☢
໬䛻䜘䜛୙ᩚ☢ሙ䛜ၥ㢟䛸䛺䜛䚹䛣䛾㐽ⶸ㟁ὶ䛻䜘䜛☢໬䛿䚸☢᮰䜽䝸䞊䝥䛻䜘䛳䛶᫬㛫⤒㐣䛻䛸䜒䛺䛔ῶ⾶䠄☢໬⦆࿴䠅䛧䚸☢ሙ䝗䝸䝣䝖䛾ཎᅉ䛸䛺䜛䚹REBCO ⥺ᮦ䛾䝬䜾䝛䝑䝖ᛂ⏝䛷䛿䚸☢ሙ䝗䝸䝣䝖䜢㜵Ṇ䛩䜛䛯䜑☢໬⦆࿴䛾ᢚไ䛜㔜せ䛷䛒䜛䚹䛔䜎䜎䛷ᡃ䚻䛾䜾䝹䞊䝥䛷䛿䚸SmBa2Cu3Oy (SmBCO)ⷧ⭷䜈䛾 BaHfO3 (BHO)䛾ῧຍ䛻䜘䜛☢ሙ୰ Jc 䛾ቑᙉ䛻䛴䛔䛶ሗ࿌䛧䛶䛝䛯䚹≉䛻䚸c ㍈┦㛵䛾䛒䜛ேᕤ䝢䞁 BHO 䝘䝜䝻䝑䝗䛾ᑟධ䛻䜘䛳䛶 77 K 䛻䛚䛔䛶 32 GN/m3 䛸㧗䛔䝢䞁ຊᐦᗘ䜢ሗ࿌䛧䛶䛔䜛[1]䚹ᮏ◊✲䛷䛿䚸SmBCO ⷧ⭷䜈䛾 BHO 䝘䝜䝻䝑䝗䛾ῧຍ㔞䜢ኚ໬䛥䛫䛶ᗈ䛔 ᗘ☢ሙ⠊ᅖ䛷䛾☢໬⦆࿴≉ᛶ䜢 ᐃ䛩䜛䛣䛸䛷䚸ேᕤ䝢䞁䛜☢໬⦆࿴䜈୚䛘䜛ᙳ㡪䛻䛴䛔䛶ㄪ䜉䛯䚹≉䛻୰ ᇦ(20-40 K)䚸ᙉ☢ሙ(3-5 T)୰䛷䛾☢
໬⦆࿴≉ᛶ䛻╔┠䛧䛯䚹

Bĭ

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Fig. 2 Relaxation rate maps for magnetic field and temperaturein (a) pure and (b) 2.2vol.%BHO-doped SmBCO films.

― 8 ―

㻞㻜

第95回

2017年度秋季低温工学・超電導学会

1A-a09

Y 系線材臨界電流

ᒁᡤ Jc ศᕸ䜢᭷䛩䜛 RBCO ⥺ᮦ䛾㟁⏺䠉㟁ὶᐦᗘ≉ᛶ
E-J characteristics of REBCO coated conductors under the influence of local Jc variation㕥ᮌ໶㎷㔝኱ᶞ኱ᮧಇ௓ᮾᕝ⏥ᖹ஭ୖᫀ╬ ஑኱ Valery Petrykin, Sergey Lee, (SuperOx Japan) ; ᮌ㡲㻌 㝯ᬸ㻌 㻔஑኱㻕SUZIKI Takumi䠈TSUJINO Daiki, OOMURA Syunsuke, HIGASHIKAWA Kohei, INOUE Masayoshi, (Kyushu Univ.);
VALERY Petrykin, SERGEY Lee (SuperOx Japan); KISS Takanobu (Kyushu Univ.)
E-mail: suzuki@ees.kyushu-u.ac.jp― 9 ―(a) Uniform region

Ic (A)

30
25
20
15
10
5
0

RTR-SHPM
Transport meas.

36.35 36.36 36.37 36.38 36.39
Longitudinal position (m)Ic (A)(b) Low Ic region
30
25
20
15
10
RTR-SHPM
5Transport meas.
036.67 36.68 36.69 36.7 36.71

Longitudinal position (m)Fig.1 Comparison with critical current at reel-to- reel
SHPM and four probe method. (a)Uniform region, (b)Low
Ic region.

E (V/cm)

10-4

Low IcregionWith Ag
Without Ag

Uniform
region

10-5
10-6
10-7

5 6 7 8 9 10

I (A)

20

30

Fig.2 E-I characteristics of uniform region and comparison
with E-I characteristics with and without Ag including low
Ic region.

10-4

Exp.
Percolation modeln-value model-5

E (V/cm)㻝䠊䛿䛨䜑䛻㻌
REBa2Cu3O7(REBCO)⥺ᮦ䛿୍⯡䛻 Bi ⣔⥺ᮦ䛻ẚ䜉኱䛝䛺 n ್䜢᭷䛧䛶䛚䜚䚸✵㛫୙ᆒ୍ᛶ䛾ᙳ㡪䜢㢧ⴭ䛻ཷ䛡䜛䚹䛩䛺䜟䛱䚸㝈ὶჾ䜔䝬䜾䝛䝑䝖䛾䜽䜶䞁䝏᳨ฟ➼䛾䜘䛖䛺⏝㏵
䛻䛚䛔䛶䚸ᒁᡤⓗ䛻 Ic 䛜పୗ䛧䛶䛔䜛㡿ᇦ䜢ྵ䜐ሙྜ䛻䛚䛡䜛 E-J ≉ᛶ䜈䛾ᙳ㡪䜔Ᏻᐃ໬ᒙ䜈䛾㟁ὶศὶ䛾ṇ☜䛺ᢕᥱ䛜㔜せ䛸䛺䜛䚹䛣䜜䜎䛷䚸E-J ≉ᛶ䛿 n ್䝰䝕䝹䜢⏝䛔䛶⾲⌧䛧䚸Ᏻᐃ໬ᒙ䜈䛾㟁ὶศὶ䜢⪃៖䛧䛶 n ್䛾పୗ䜢グ㏙䛩䜛౛䛜ከ䛟ぢ䜙䜜䜛䛜䚸䝰䝕䝹䛾ጇᙜᛶ䜔ᐃ㔞ᛶ䛻㛵䛧䛶䛿୙᫂░䛷䛒䜛䚹ᮏ◊✲䛷䛿ᒁᡤⓗ䛺 Ic 䛾ኚ໬䛸 E-J ≉ᛶ䛾㛵ಀ䛻䛴䛔䛶Ᏻᐃ໬ᒙ䛾᭷↓䛻䜘䜛ᙳ㡪䜢ᐇ㦂ⓗ䛻ホ౯䛧䚸ᒁᡤ Ic ศᕸ䜢⪃៖䛧䛯 E-J ≉ᛶ䛾䝰䝕䝹໬[1]䜢⾜䛳䛯䚹㻞䠊ᐇ㦂᪉ἲ㻌ᐃヨᩱ䛿 SuperOx ♫䛾 PLD ἲ䛷స〇䛥䜜䛯 1 mm ᖜ
GdBCO ⥺ᮦ䛷䛒䜛䚹䝸䞊䝹ᘧ㉮ᰝᆺ䝩䞊䝹⣲Ꮚ㢧ᚤ㙾(RTR-SHPM)䜢⏝䛔䛶⥺ᮦ㛗ᡭ᪉ྥ䛾 Ic ศᕸ䜢 ᐃ䛧䚸ྠ
ヨᩱ䛻㟁ᅽ➃Ꮚ㛫㊥㞳 10 mm 㛫㝸䛷」ᩘ䛾㟁ᅽ➃Ꮚ䜢ྲྀ䜚௜䛡ᅄ➃Ꮚἲ䛻䜘䜛㏻㟁ἲ䛷 E-J ≉ᛶ䜢 ᐃ䛧䛯䚹䛭䛾ᚋ䚸䜴䜵䝑䝖䜶䝑䝏䞁䜾䛻䜘䜚᭱⾲㠃䛾㖟䛾Ᏻᐃ໬ᒙ䜢ྲྀ䜚㝖䛝䚸ྠᵝ䛻㏻㟁ἲ䛷 E-J ≉ᛶ䜢 ᐃ䛧䛯䚹㏻㟁ἲ䛷䛿 Ec=10-6
V/cm 䜢㟁⏺ᇶ‽䛸䛧䛯䚹㻟䠊ᐇ㦂⤖ᯝ䚸⪃ᐹ
Fig.1 䛻 RTR-SHPM 䜢⏝䛔䛶ィ 䛧䛯 Ic(x)䛸㏻㟁ἲ䛷ィ
䛧䛯 Ic 䜢♧䛩䚹䛣䜜䜙䛾ィ ᡭἲ䛷䛿㟁⏺ᇶ‽䛜 4 ᱆䜋䛹␗䛺䜛䛯䜑 RTR-SHPM 䛾 Ic 䛿㏻㟁ἲ䛻䜘䜛 Ic 䜘䜚ప䛟ぢ✚䜒䜙䜜䜛䚹(a)䛿 Ic 䛜ᆒ୍䛺㡿ᇦ(ᆒ୍㒊)䛷䛒䜚䚸䛹䛾༊㛫䛷䜒䚸䜋䜌ྠ⛬ᗘ䛾 Ic 䛸䛺䜛䚹(b)䛿 Ic 䛜኱ᖜ䛻పୗ䛧䛶䛔䜛㒊ศ䜢ྵ䜐㡿ᇦ(ప Ic 㒊)䛸䛺䜚䚸㏻㟁ἲ䛻䜘䜛 Ic 䜒 1/3 䜋䛹䛻పୗ䛧䛶䛔䜛䚹䛣䜜䜙䛾༊㛫䛾 E-I ≉ᛶ䜢 Fig. 2 䛻♧䛩䚹ᆒ୍㒊䛸ప
Ic 㒊䛾ഴ䛝䜢ẚ㍑䛩䜛䛸䚸ప Ic 㒊䛷ഴ䛝䛜⦆䜔䛛䛻䛺䛳䛶䛔䜛䛣䛸䛜ศ䛛䜚䚸n ್䛷䛿ᆒ୍㒊఩䛾 30 ⛬ᗘ䛻ẚ䜉 20 ⛬ᗘ䜎䛷పୗ䛧䛶䛔䜛䚹䜎䛯䚸㖟䜢ྲྀ䜚㝖䛔䛯ሙྜ䚸䜶䝑䝏䞁䜾䛾ᙳ㡪䛷 Ic 䛿䜟䛪䛛䛻పୗ䛧䛶䛔䜛䛜䚸n ್䛿೺඲㒊䚸ప Ic 㒊䛷䛭䜜䛮䜜䚸30, 20 ⛬ᗘ䛷䛒䜚䜋䜌ኚ໬䛿䛺䛔䚹䜘䛳䛶䚸㟁ὶศὶ䛜䛺䛔ሙྜ䛷䜒 n ್䛜పୗ䛩䜛䛣䛸䜢ᐇ㦂ⓗ䛻᫂䜙䛛䛻䛧䛯䚹䛣䛾ᐇ㦂⤖ᯝ䛿䚸㏻ᖖ䛾 䡊 ್䝰䝕䝹䛷䛿グ㏙䛷䛝䛺䛔䚹䛩䛺䜟䛱䚸E-J ≉ᛶ䛻䛚䛡䜛䝟䝽䞊ᣦᩘ䛜㟁⏺䛻䜘䜚ኚ໬䛩䜛䛣䛸䜢᫂☜䛻♧䛧䛶䛔䜛䚹ḟ䛻䚸E-J ≉ᛶ䜢 RTR-SHPM 䛛䜙ᚓ䜙䜜䛯ᒁᡤ⮫⏺㟁ὶศᕸ䛾ኚ໬䛿㉸ఏᑟ䛾᭷ຠ᩿㠃✚䛾ኚ໬䛷䛒䜛䛸䛧䛶䚸E-J ≉ᛶ䜢䝟䞊䝁䝺䞊䝅䝵䞁㌿⛣䝰䝕䝹䛸 n ್䝰䝕䝹䛷䛭䜜䛮䜜௬ᐃ䛧グ㏙䛧䛯䚹Fig. 3 䛻䛭䛾⤖ᯝ䜢♧䛩䚹䛹䛱䜙䛾ሙྜ䜒㟁⏺ᇶ‽䛷䛾 Ic 䛿ྠ⛬ᗘ䛷䛒䜛䛜䚸䝟䞊䝁䝺䞊䝅䝵䞁䝰䝕䝹䛷䛿ᐇ㦂⤖ᯝ䛾ഴ䛝䜢Ⰻ䛟グ㏙䛷䛝䛶䛔䜛䛣䛸䛜ศ䛛䜛䚹䜘䛳䛶䚸n ್䝰䝕䝹䛷䛿㧗㟁⏺䛷䜘䜚ᐇ㦂್䛸䛾஋㞳䛜኱䛝䛟䛺䜛䛸⪃䛘䜙䜜䜛䚹᭦䛻䚸䝟䞊䝁䝺䞊䝅䝵䞁㌿⛣䝰䝕䝹䛷ᚓ䜙䜜䜛ᵝ䛺䚸㉸ఏᑟᒙ䛾☢᮰䝣䝻䞊㡿ᇦ䛻䛚䛡䜛ୖ䛻ฝ䛾 E-J ≉ᛶ䛻䜘䛳䛶䚸㉸ఏᑟ䛾ᮏ㉁ⓗ䛺≉ᛶ䛸䛧䛶 n ್䛜పୗ䛩䜛䛣䛸䛜ศ䛛䛳䛯䚹㻠䠊ㅰ㎡㻌ᮏ◊✲䛿᪥ᮏᏛ⾡᣺⯆఍䛾⛉◊㈝䠄16H02334䠅䛾ຓᡂ䜢ᚓ䛶⾜䛳䛯䚹
ཧ⪃ᩥ⊩[1] T. Kiss et al., Cryogenics 80 (2016) 221-228.

10

-6

10

-7

10

6

7

8

9 10
I (A)

Fig.3 E-I characteristics of the experiment and theoreticalcurves including low Ic region using n-value model andpercolation transition model, respectively.
第95回

2017年度秋季低温工学・超電導学会

1A-a10Y 系線材臨界電流㻠㻚㻞㻌㻷䚸ᖹ⾜☢ሙୗ䛻䛚䛡䜛 㻾㻱㻮㻯㻻 ⥺ᮦ䛾⮫⏺㟁ὶᐃ㻌㻯㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌㼛㼒㻌㻾㻱㻮㻯㻻㻌㼏㼛㼚㼐㼡㼏㼠㼛㼞㼟㻌㼍㼠㻌㻠㻚㻞㻌㻷㻌㼕㼚㻌㼜㼍㼞㼍㼘㼘㼑㼘㻌㼒㼕㼑㼘㼐㻌ᅵᒇ㻌 Ύ⃈㻘㻌 ᑎᓥ㻌 ᫛⏨㻘㻌 ⋤㻌 ᪫ᮾ䠄㻷㻱㻷䠅䠗⳥ụ❶ᘯ㻌 㻔㻺㻵㻹㻿䠅䠗๎ᮏ㻌 ▱ဢ㻘㻌 ෆ⏣㻌 ⪷㻘㻌 㧗ᑿ㻌 ᬛ᫂䠄ୖᬛ኱䠅㻌㼀㻿㼁㻯㻴㻵㼅㻭㻌㻷㼕㼥㼛㼟㼡㼙㼕㻘㻌㼀㻱㻾㻭㻿㻴㻵㻹㻭㻌㻭㼗㼕㼛㻘㻌㼃㻭㻺㻳㻌㼄㼡㼐㼛㼚㼓㻌㻔㻷㻱㻷㻕㻧㻌㻷㻵㻷㼁㻯㻴㻵㻌㻭㼗㼕㼔㼕㼞㼛㻌㻔㻺㻵㻹㻿㻕㻧㻌㻺㻻㻾㻵㻹㻻㼀㻻㻌㻷㼍㼦㼡㼗㼕㻘㻌 㻌㼁㻯㻴㻵㻰㻭㻌㻹㼕㼛㻘㻌㼀㻭㻷㻭㻻㻌㼀㼛㼙㼛㼍㼗㼕㻌㻔㻿㼛㼜㼔㼕㼍㻌㼁㼚㼕㼢㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼗㼕㼥㼛㼟㼡㼙㼕㻚㼠㼟㼡㼏㼔㼕㼥㼍㻬㼗㼑㼗㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
㻾㻱㻮㻯㻻 ⥺ᮦ䜢⏝䛔䛯㧗☢ሙ䝋䝺䝜䜲䝗䛾㛤Ⓨ䛿䚸ୡ⏺䛾ከ䛟䛾㧗☢ሙ◊✲ᡤ䛷᥎㐍䛥䜜䛶䛔䜛䚹䜎䛯䚸㏆ᖺ 㻯㻱㻾㻺 䛜᳨ウ䜢ጞ䜑䛯 㻝㻜㻜㻌 㼀㼑㼂㻌 䜽䝷䝇䛾㉸኱ᆺຍ㏿ჾ 㻲㼡㼠㼡㼞㼑㻌 㻯㼕㼞㼏㼡㼘㼍㼞㻌㻯㼛㼘㼘㼕㼐㼑㼞㻌㻔㻲㻯㻯㻕䛻䛚䛔䛶䜒 㻴㼀㻿 ⥺ᮦ䜢⏝䛔䛯 㻞㻜㻌㼀 ⣭☢▼䛜䠍䛴䛾ೃ⿵䛻ୖ䛢䜙䜜䛶䛚䜚䚸௒ᚋ䛣䜜䜙䛾☢▼㛤Ⓨ䛜άⓎ໬䛩䜛䛸ᛮ䜟䜜䜛䚹䛣䛾䜘䛖䛺≧ἣ䛾୰䚸ᡃ䚻䛿ᕷ㈍ 㻾㻱㻮㻯㻻 ᑟయ䛾 㻠㻚㻞㻌㻷 䛻᪊䛡䜛⮫⏺㟁ὶ≉ᛶ䛾◊✲䜢㛤ጞ䛧䛯䚹ᮏ✏䛷䛿䚸᪤ሗ䛾 㻠㻚㻞䚸ᆶ┤☢ሙୗ䛷䛾≉ᛶ ᐃ㼇㻝㻘㻞㼉䛻⥆䛔䛶⾜䛳䛯ᖹ⾜☢ሙୗ䛷䛾 㻵㼏 ᐃ䛾ᴫ␎䛸⤖ᯝ䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌䛾ᾮయ❅⣲୰䚸⮬ᕫ☢ሙୗ䛷䛾 㻵㼏ᐃ䜢⾜䛺䛳䛯䚹䛭䛾⤖ᯝ䜢 㼀㼍㼎㼘㼑㻌 㻞 䛻♧䛩䚹ᆶ┤☢ሙୗ䛷䛾 㻵㼏 ᐃ⏝ 㼁 ᆺ䝩䞊䝹䝎䞊䛷䛾 ᐃ್䛸ẚ䜉 㻡㻌 㻑㻌 ⛬ᗘ䛾ᕪ䛜ぢ䜙䜜䜛䛜䚸䛣䜜䛿⥺ᮦ≉ᛶ䛾䜀䜙䛴䛝䜔ྲྀ䜚ᢅ䛔䛻䜘䜛ከᑡ䛾ຎ໬䛻䜘䜛䜒䛾䛷䛿䛺䛔䛛䛸ᛮ䜟䜜䜛䚹㻌 㻲㼕㼓㻚㻌㻞 䛻 ᐃ䛧䛯䝃䞁䝥䝹䛾 㻠㻚㻞㻌㻷䚸ᖹ⾜☢ሙୗ䛻䛚䛡䜛 Ic-B ≉ᛶ䜢䚸䜎䛯䚸㻲㼕㼓㻚㻌㻟 䛻䛿ᖹ⾜☢ሙୗ㻵㼏 ್䛸ᆶ┤☢ሙୗ 㻵㼏 ್䛾ẚ䜢♧䛩䚹㻌㻌㻌㻞䠊ᖹ⾜☢ሙୗ䛷䛾⮫⏺㟁ὶ ᐃ㻌㻿㼡㼜㼑㼞㻼㼛㼣㼑㼞㻙㻯㻲䚸㻿㼡㻺㻭㻹䚸㻿㼡㼜㼑㼞㻻㼤 ♫䛾 㻾㻱㻮㻯㻻 ᑟయ䛾 㻵㼏ᐃ䜢⾜䛳䛯䚹 ᐃ䛧䛯ᑟయ䛾ㅖඖ䜢 㼀㼍㼎㼘㼑㻌 㻝 䛻♧䛩䚹 ᐃ䛻⏝䛔䛯䝃䞁䝥䝹䝩䞊䝹䝎䞊䛿䚸㻺㻵㻹㻿 ᙉ☢ሙ䝇䝔䞊䝅䝵䞁䛾㻝㻤㻌㼀 䝋䝺䝜䜲䝗䠄ཱྀᚄ 㻡㻞㼙㼙䠅䛾୰䛷䚸㻠㻚㻞㻷䚸ᖹ⾜☢ሙୗ䛷 㻲㼡㼘㼘㻌㼟㼕㼦㼑 ᑟయ䛾 㻵㼏 ᐃ䜢⾜䛖䛯䜑䛻㛤Ⓨ䛧䛯䜒䛾䛷䚸䠎ᮏ䛾⥺ᮦ䛜ྲྀ䜚௜䛡䜙䜜䜛䚹䛭䛾እほ䜢 㻲㼕㼓㻚㻌㻝 䛻♧䛩䚹㻌㻵㼏㻌 ᐃ䛿䚸㻝㻤㻌 㼀㻌 䡚㻞㻌 㼀 䛾⠊ᅖ䛷☢ሙ䜢ኚ໬䛥䛫䛶⾜䛳䛯䚹ᾮయ䝦䝸䜴䝮୰䛷䛾 ᐃ䛷䛒䜛䛯䜑䚸 ᐃ ᗘ䛿䚸㻠㻚㻞㻌 㻷 䛷䛒䜛䚹䝃䞁䝥䝹䛾㛗䛥䛿ࠥ㻝㻟㻜㻌㼙㼙 䛷䚸ྲྀ䜚௜䛡䛯㟁ᅽ䝍䝑䝥䛿䚸㻵㼏 ᐃ⏝䠄䝍䝑䝥㛫㊥㞳㻦㻡㻜㻌㼙㼙䠅䚸䠎䛴䛾 㻵㼏 䝍䝑䝥እഃ㟁ᅽ䝰䝙䝍䞊⏝䠄䝍䝑䝥㛫㊥㞳㻦㻝㻟㻌 㼙㼙䠅䛸⥺ᮦ䛾䜽䜶䞁䝏ಖㆤ⏝㻔㻝㻟㻗㻡㻜㻗㻝㻟㻌㼙㼙㻕䛾䠐䛴䛷䛒䜛䚹⥺ᮦ䛸㟁ᴟ䛾᥋⥆䛻䛿 㻿㼚㻙㻮㼕 䛿䜣䛰䜢⏝䛔䚸䛭䛾㛗䛥䛿 㻝㻤㻌㼙㼙 䛷䛒䛳䛯䚹䜎䛯䚸⥺ᮦ䛿䝝䝇䝔䝻䜲ᇶ┙䜢እഃ䛻䛩䜛䜘䛖䛻ྲྀ䜚௜䛡䛯䚹㻌䝃䞁䝥䝹䜢䝩䞊䝹䝎䞊䛻ྲྀ䜚௜䛡䛯ᚋ䚸䜎䛪䚸ᾮయ❅⣲୰䚸⮬ᕫ☢ሙୗ䛷䛾 㻵㼏 ᐃ䜢⾜䛳䛯䚹䛭䛾ᚋ䚸㻝㻤㼀 䝋䝺䝜䜲䝗୰䛻䝩䞊䝹䝎䞊䜢ᤄධ䛧䛶ᖹ⾜☢ሙୗ䛷䛾 㻵㼏ᐃ䜢⾜䛳䛯䚹
ᐃ☢ሙ䛿 㻝㻤㻌㼀 䛛䜙☢ሙ䜢ᚎ䚻䛻ୗ䛢䚸㻵㼏 ್䛜 㻝㻜㻜㻜㻌㻭 ⛬ᗘ䛸䛺䜛☢ሙ䜎䛷䛾 ᐃ䜢⾜䛳䛯䚹⮫⏺㟁ὶ䛿㻌 㻵㼏ᐃ⏝㟁ᅽ䝍䝑䝥ಙྕ䛾㟁⏺䛜 㻝㻌㽀㼂㻛㼏㼙䠄᫬䛻䛿 㻜㻚㻞㻌㽀㼂㻛㼏㼙䠅䛸䛺䛳䛯᫬䛾㟁್䛸䛧䚸㼚 ್䛿 㻜㻚㻝㻙㻝㻌㽀㼂㻛㼏㼙 䛾⠊ᅖ䛷ồ䜑䛯䚹㻌㻌 Table 1 Technical characteristics of REBCO samples
Conductor
SuNAM
SuperOxSuperPower-CF

Hastelloy
thickness
60 Pm
60 Pm
50 Pm

Cu stabilizer
thickness
20 Pm
40 Pm
20 Pm

Dimensions(w× t)
4.1 × 0.10 mm
4.0 × 0.152 mm
4.0 × 0.09 mm

㻌Table 2. Ic (1PV/cm) and n-values
measured using the sample holder at 77
K and self-field condition. The values in
the parentheses are of the perpendicularfield.
Ic (A) n-value
SuNAM
210
46
(217)
(43)
SuperOx
126
34
(132)
(36)
SuperPower-CF 118
34
(116)
(31)

㻌
Fig. 1. Sample holder㻌㻟䠊 ᐃ⤖ᯝ㻌㻌 䝃䞁䝥䝹ྲྀ䜚௜䛡᫬䛾≉ᛶຎ໬䜢☜ㄆ䛩䜛䛯䜑䛻䚸㻠㻚㻞㻌㻷 䛷䛾 㻵㼏 ᐃ䛻ඛ❧䛱䚸䝩䞊䝹䝎䞊䛻௜䛡䛯 㻠㻌㼙㼙 ᖜ䛾䝃䞁䝥䝹

Fig. 2. Critical current of REBCO
conductors at 4.2 K in parallel field.

㻌Fig. 3. Ratio of Ic in parallel field
to Ic in perpendicular field at 4.2
K.

㻌㻲㼕㼓㻚㻌 㻞㻌 䜘䜚䚸㻵㼏 ್䛾☢ሙ౫Ꮡᛶ䛿⥺ᮦ䛻䜘䜚␗䛺䜛䛣䛸䛜䜟䛛䜛䚹㻿㼡㻺㻭㻹 ⥺䛸 㻿㼡㼜㼣㼞㻼㼛㼣㼑㼞㻙㻯㻲 ⥺䛿䜘䛟ఝ䛯᣺䜛⯙䛔䜢䛩䜛䛜䚸㻌 㻿㼡㼜㼑㼞㻻㼤 ⥺䛿䛭䜜䛸䛿␗䛺䛳䛶䛔䜛䚹㻿㼡㼜㼑㼞㻻㼤 ⥺䛾 㻵㼏 ್䛿 ప ☢ ሙ 䛷 ప 䛟 䚸 㧗 ☢ ሙ 䛷 㧗 䛔 䚹 㻿㼡㻺㻭㻹 ⥺ 䛸㻿㼡㼜㼑㼞㻼㼛㼣㼑㼞㻙㻯㻲 ⥺䛜䜘䛟ఝ䛯≉ᛶ䜢ᣢ䛴䛣䛸䛿䚸ᆶ┤☢ሙୗ䛷 䛾 㻵㼏㻙㻮 ≉ ᛶ 䛷 䜒 ぢ 䜙 䜜 䛶 䛔 䜛 䛜 䚸 䛣 䛾 ሙ ྜ 䛻 䛿 䚸㻿㼡㼜㼑㼞㻼㼛㼣㼑㼞㻙㻯㻲 ⥺䛾᪉䛜 㻿㼡㻺㻭㻹 ⥺䜘䜚㧗┠䛾 㻵㼏 ್䜢᭷䛧䛶䛔䛯䚹㻲㼕㼓㻚㻌 㻟 䛛䜙䛿䚸䛹䛾⥺ᮦ䛻䛚䛔䛶䜒 Ic(B//ab)䛸 Ic(B//c)䛾ẚ䛿☢ሙ䛸䛸䜒䛻኱䛝䛟䛺䜛䛣䛸䚸⥺ᮦ䛻䜘䜚䛣䛾್䛿␗䛺䜚䚸
15 T ௨ୖ䛾☢ሙ䛷䛿䠐ࠥ䠒⛬ᗘ䛾್䛸䛺䜛䛣䛸䛜䜟䛛䜛䚹㻌㻌㻠䠊䜎䛸䜑㻌㻌 㻠㻌 㼙㼙ᖜ䛾ᕷ㈍㻾㻱㻮㻯㻻㻌 ᑟయ䛾㻠㻚㻞㻌 㻷䚸ᖹ⾜☢ሙୗ䛻䛚䛡䜛⮫⏺㟁ὶ ᐃ䜢⾜䛳䛯䚹ᖹ⾜☢ሙୗ䛾 ᐃ䛷䛿䚸ᆶ┤☢ሙୗ䛷䛾 ᐃ䛻ẚ䜉䚸⥺ᮦ䛻ാ䛟㟁☢ຊ䛜䠐ಸ௨ୖ䛸䛺䜚䚸䛭䛾⥺ᮦᨭᣢ᪉ἲ䛻ⱞປ䛧䛯䛜䚸ᖹ⾜☢ሙୗ䛷䛾㻌 㼒㼡㼘㼘㻌 㼟㼕㼦㼑ᑟయ䛾㻵㼏㻌 ᐃ䝩䞊䝹䝎䞊䜢㛤Ⓨ䛩䜛䛣䛸䛜䛷䛝䛯䚹 ᐃ䛧䛯⥺ᮦ䛷䛿䚸ᖹ⾜☢ሙୗ䛷䛾㻵㼏್䛿ᆶ┤☢ሙୗ䛷䛾್䛻ẚ䜉䛶䠐ࠥ䠒ಸ⛬ᗘ䠄㻬㻮㻪㻝㻡㻌 㼀䠅䛸䛺䜛䛣䛸䚸ཪ䚸䛣䛾㻵㼏್䛾ẚ䛿ప☢
ሙ䛷ᑠ䛥䛟䚸㧗☢ሙ䛷኱䛝䛟䛺䜛䛣䛸䛺䛹䛜ศ䛛䛳䛯䚹ㅰ㎡㻌
㻌 ᮏࢧࣥࣉ࣮ࣝ࣍ࣝࢲ࣮ࡢ〇స࡛ࡣࠊ.(.ᶵᲔᕤᏛࢭࣥࢱ
࣮ࡢ᪉ࠎ࡟኱ኚ࠾ୡヰ࡟࡞ࡾࡲࡋࡓࠋឤㅰ⏦ࡋୖࡆࡲࡍࠋ
ᮏ◊✲ࡣ⛉Ꮫ◊✲㈝⿵ຓ㔠 + ࡢຓᡂ࡟ࡼࡾᐇ᪋
ࡋࡓࡶࡢ࡛࠶ࡿࠋ
ཧ⪃ᩥ⊩㻌
1. K. Tsuchiya et al., Cryogenics 85 (2017) 1.
2. K. Tsuchiya et al., IEEE Trans. Appl. Supercond., vol. 27,
no. 4, June 2017.

― 10 ―

第95回

2017年度秋季低温工学・超電導学会

1A-p01

HTS コイル保護㧗☢ሙ 㻴㼀㻿 䝁䜲䝹䛻⏕䛨䜛᪩ᮇ⇕ᭀ㉮䠄䜽䜶䞁䝏䠅䛾ᢚไ䠄䠍䠅㻌䡚᪩ᮇ⇕ᭀ㉮䛾஦౛䛸ᢚไἲ䛾య⣔໬䡚㻌
6XSSUHVVLRQRISUHPDWXUHWKHUPDOUXQDZD\ TXHQFK LQKLJKILHOG+76FRLOV  
䇵 &DVHVDQGVXSSUHVVLRQPHWKRGRISUHPDWXUHWKHUPDOUXQDZD\V 䇵ᰗ⃝ ྜྷ⣖䠄⌮◊䠅䠗ᮎᐩ భ ༓ⴥ኱ 䠗ᣢ⏣ ᐶᕼ䠈㧗ᑿ ᬛ᫂ ୖᬛ኱ 䠗℈⏣㻌 ⾫ -$67(& 䠗ᯇᮏ ┿἞䠄1,06䠅䠗ᮔ ௵୰䠈๓⏣ ⚽᫂䠄⌮◊䠅
<$1$*,6$:$<RVKLQRUL 5,.(1 68(720,<X &KLED8QLY 02&+,'$+LURNL7$.$27RPRDNL 6RSKLD8QLY 
+$0$'$0DPRUX -$67(& 0$76802726KLQML 1,06 3,$25HQ]KRQJ0$('$+LGHDNL 5,.(1 (PDLO\RVKLQRUL\DQDJLVDZD#ULNHQMS㻌㻝㻚㻌 䛿䛨䜑䛻㻌
7DEOH  6WUHVV PRGH RI HOHFWURPDJQHWLF IRUFHLQGXFH
/76 䝁䜲䝹䛷䛿䝽䜲䝲䞊䝰䞊䝅䝵䞁䛺䛹䛾ᚤᙅ䛺䝟䝹䝇Ⓨ
GHJUDGDWLRQLQ5(%&2DQG%LFRLOV>@⇕䠄ȝP 䝺䝧䝹䠅䛻䜘䜚᪩ᮇ⇕ᭀ㉮䠄䜽䜶䞁䝏䠅䛜⏕䛨䜛䛾䛷䚸䜽䜶䞁䝏䜢㜵䛠ᢏ⾡䠄Ᏻᐃ໬䠅䛸䚸䜽䜶䞁䝏䛧䛶䜒ᦆയ䛧䛺䛔ᢏ⾡
REBCO
Bi-2223䠄ಖㆤ䠅䛜㔜せ䛷䛒䜛䚹୍᪉䚸+76 䝁䜲䝹䛷䛿䛣䛾✀䛾᪩ᮇ䜽䜶䞁䝏䛿⏕䛨䛺䛔䛜䚸㟁☢ຊ䛻䜘䜛⥺ᮦ䛾ᒁᡤຎ໬䛷ᐃᖖⓎ
Tensile100 mm order⇕䛜⏕䛨䚸᪩ᮇ⇕ᭀ㉮䛻⮳䜛䚹䛣䛾᫬䚸㟁ὶᐦᗘ䛜㧗䛔䛸䝁䜲))䝹䛜↝ᦆ䛧䚸䝬䜾䝛䝑䝖඲య䛻⿕ᐖ䛜ཬ䜆䚹ᚑ䛳䛶䚸⥺ᮦ䛾ᒁPeeling / cleavage)ᡤຎ໬䛸⇕ᭀ㉮䛾㜵Ṇ䛿 +76 䝁䜲䝹ᢏ⾡䛾㔜せ䛺ศ㔝䛷䛒))䜛䚹ᮏሗ䛷䛿䛣䛾ᢏ⾡䛾య⣔໬䜢┠ᣦ䛩䚹
Stress concentration
Bucklingᮏሗ䛷䛿䚸⤯⦕ +76䠄5(%&2 %L䠅⥺ᮦ䜢⏝䛔䛯䝁䜲
Several mm order䝹䛾㧗☢ሙ䛻䛚䛡䜛⥺ᮦຎ໬䞉⇕ᭀ㉮䛾஦౛䜢䜒䛸䛻䚸ຎ໬
Tensile stress under䝰䞊䝗䛸䚸⇕ᭀ㉮䛜㉳䛝䜛Ⓨ⇕㔞䜢ᩚ⌮䛩䜛䚹䛴䛵䛟➨  ሗ䛷edgewise bending))䛿䚸⇕ᭀ㉮䛾ᩘ್ゎᯒ䛻䜘䛳䛶䚸ຎ໬䛜䛒䜛ሙྜ䛻䜒䝁䜲䝹䜢(combination)Ᏻᐃⓗ䛻㐠㌿䛩䜛䛯䜑䛾䜽䝷䜲䝔䝸䜰䜢ᚓ䜛䚹➨  ሗ䛷䛿䚸䝺䜲䝲䞊ᕳ䝁䜲䝹䛻䛚䛔䛶䚸1, ἲ䛾⇕ᭀ㉮ᢚไ䞉⮬ᕫಖㆤᛶ䜢ᚓ
7DEOH  2SHUDWLQJ FRQGLWLRQV RI GHJUDGDWLRQV DQG WKHUPDO䛺䛜䜙䚸▷䛔☢ሙ㐜䜜䜒୧❧䛩䜛ᢏ⾡䜢♧䛩䚹
UXQDZD\V>@㻌
N CoilLayers B0 (T)Jcond
Q (V x I) Thermal Degradation㻞㻚㻌 ⤯⦕ 㻴㼀㻿 ⥺ᮦ䝁䜲䝹䛾㧗☢ሙ䛻䛚䛡䜛ຎ໬䛸⇕ᭀ㉮㻌
(A/mm2)o.
(W)runawaymode㻌 䛣䜜䜎䛷䛻〇స䞉ホ౯䛧䛯 +76 ヨ㦂䝁䜲䝹䛾እ㒊☢ሙ୰䛷
1 REBCO
4
11.4
1025
0.37
No
Combination䛾㟁☢ຊ䛻㉳ᅉ䛧䛯≉ᛶ䛾ຎ໬≧ែ䜢 7DEOH  䛻♧䛩䚹ከᒙ
2 REBCO
8
17 .7
803
0.72
Yes
Bucklingᵓ㐀䛛䛴䚸᭤䛢๛ᛶ䛾ప䛔 5(%&2 ⥺ᮦ䛾䝁䜲䝹䛿䚸ప㈇Ⲵ
3 REBCO
8
17.9
883
0.71
Yes
Buckling⋡䛾ẁ㝵䛛䜙ᛂຊ㞟୰䝰䞊䝗䛻䜘䛳䛶ᒁᡤⓗ䠄ᩘ PP 䜸䞊䝎
Peeling /4 REBCO
74
25
284
0.46
No
cleavage䞊䠅䛺ຎ໬䛜㉳䛝䜛䚹୍᪉䚸%L 䝁䜲䝹䛿䛣䛾✀䛾ຎ໬䛿
5 REBCO
76
27.6
389
0.4
Yes
?
㉳䛝䛺䛔䛜䚸㛗䛔࿘㛗䠄 PP 䜸䞊䝎䞊䠅䛻䜟䛯䜚㐣๫䛺䝣
Tensile䞊䝥ᛂຊ䜢⤒㦂䛩䜛䛸ຎ໬䛜㉳䛝䜛䚹䛩䛺䜟䛱䚸%L 䝁䜲
6 Bi2223
6
17.7
383
1.5
No
stress䝹䛾ຎ໬㜵Ṇ䛿ᛂຊタィ䠄䝣䞊䝥ᛂຊ䞉㍈ᅽ⦰ᛂຊ䠅䛾ၥ㢟䛸䛧䛶ᑐฎ䛷䛝䜛䛜䚸5(%&2 䝁䜲䝹䛾ሙྜ䛿䚸ᛂຊタィ䛰䛡䛷䛿ᚤᑠ䛺ຎ໬㒊䛾Ⓨ⏕䜢᏶඲䛻㜵Ṇ䛩䜛䛣䛸䛿㞴䛧䛔䚹
7DEOH  5HTXLUHPHQWV RI DSSOLFDWLRQV DQG VXLWDEOH FRLOFRQILJXUDWLRQV㻌 7DEOH 䛻እ㒊☢ሙ୰䛷ヨ㦂䛧䛯 +76 䝁䜲䝹䛻䛚䛔䛶䚸㟁☢
ຊ䛻䜘䜛ຎ໬䞉᪩ᮇ⇕ᭀ㉮䛜㉳䛝䛯䜿䞊䝇䛾㐠㌿᮲௳䜢♧䛩䚹Premature thermal
PancakeLayer
runaway (quench)
5(%&2 䝁䜲䝹䛾ሙྜ䚸ᐃᖖⓎ⇕䠄䠙䝁䜲䝹㟁ᅽ㽢㟁ὶ䠅䛜 
NI
High fieldPersistent: ᮍ‶䛷⇕ᭀ㉮䛜㉳䛝䛯䠄1R䠅䚹୍᪉䚸%L 䝁䜲䝹䛿current
Defect irrelevant [9]Homogeneous ౛䠄1R䠅䛾䜏䛷䛿䛒䜛䛜䚸䜘䜚኱䛝䛺Ⓨ⇕㔞䠄 :䠅䛷䜒⇕fieldᭀ㉮䛜㉳䛝䛺䛛䛳䛯䚹䛩䛺䜟䛱䚸㧗☢ሙ +76 䝁䜲䝹䛻䛚䛔䛶
Bi-2223:
Stress management
Insulated Applications which cannot⇕ᭀ㉮䛜Ⓨ⏕䛩䜛ᐃᖖⓎ⇕䛿䝁䞁䝬ᩘ :䡚 : 䝺䝧䝹䛷䛒REBCO:
accept field delay and charging
䜛䚹䛣䜜䛿䚸㧗☢ሙ +76 䝁䜲䝹䛾ບ☢䛻䛒䛯䛳䛶㠀ᖖ䛻㔜せStress management
loss
and heating criteria䛺ᣦᶆ䛷䛒䜛䚹ḟሗ䛷䛿䚸ᩘ್ゎᯒ䛻䜘䛳䛶㐠㌿᮲௳䜢䝟䝷䝯䞊䝍䛸䛧䛶䛣䛾ᣦᶆ䜢య⣔໬䛩䜛䚹ㅰ㎡䠖ᮏ◊✲䛿⛉Ꮫᢏ⾡᣺⯆ᶵᵓ䛾◊✲ᡂᯝᒎ㛤஦ᴗ㻌 ᡓ㻌␎ⓗ䜲䝜䝧䞊䝅䝵䞁๰ฟ᥎㐍䝥䝻䜾䝷䝮䛾⿵ຓ䜢ཷ䛡䛯䚹㻌㻟㻚㻌 䜎䛸䜑㻌
㻌
㻌 7DEOH  䛻䚸+76 䝁䜲䝹䛻䛚䛡䜛≉ᛶ䛾せồ䛸䚸㐺䛧䛯䝁䜲䝹ཧ⪃ᩥ⊩㻌ᵓᡂ䛾㛵ಀ䚸䛥䜙䛻⇕ᭀ㉮㜵Ṇ䛾⪃䛘᪉䜢♧䛩䚹1, ἲ䛜㐺⏝>@0DHGDDQG<DQDJLVDZD,(((7$6  
䛷䛝䜛䝁䜲䝹䛷䛿䚸ຎ໬䛜䛒䛳䛶䜒㟁ὶ䛜㎽ᅇ䛩䜛䛾䛷⇕ᭀ>@.DMLWDHWDO6X67  
>@0DWVXGDHWDOSUHVHQWHGDW$6&/3R*㉮䛿㉳䛝䛺䛔䛖䛘>@䚸⮬ᕫಖㆤస⏝䛜ാ䛟䚹୍᪉䚸1, ἲ䛜㐺>@ ᯇ⏣௚䚸 ᖺᗘ⛅Ꮨప ᕤᏛ䞉㉸㟁ᑟᏛ఍䚸%D⏝䛷䛝䛺䛔ᶵჾ䛷䛿⤯⦕䝁䜲䝹䛜ᚲせ䛸䛺䜛䚹%L 䛾ሙྜ䚸
>@0DWVXPRWRHWDO,(((7$6  
㐺ษ䛺ᛂຊタィ䛻䜘䛳䛶⇕ᭀ㉮䛜㜵䛢䜛䛜䚸5(%&2 䛾ሙྜ>@.DMLWDHWDO,(((7$6  
>@<DQDJLVDZDHWDO,(((&6& (6$661)-XO\
䛿䛣䜜䛻ຍ䛘䛶䚸ᒁᡤຎ໬䛜⏕䛨䛯䛸䛧䛶䜒䚸୙ྍ㏫䛺᪩ᮇ⇕>@<DQDJLVDZDHWDO6X67  
ᭀ㉮䛻⮳䜙䛺䛔Ⓨ⇕ᇶ‽䜢Ᏺ䜛㐠㌿䛜ᚲせ䛷䛒䜛䚹>@+DKQHWDO6X67  㻌㻌

― 11 ―

第95回

2017年度秋季低温工学・超電導学会

1A-p02

HTS コイル保護㧗☢ሙ 㻴㼀㻿 䝁䜲䝹䛻⏕䛨䜛᪩ᮇ⇕ᭀ㉮㻔䜽䜶䞁䝏㻕䛾ᢚไ㻌 㻔㻞㻕㻌䡚⤯⦕䝁䜲䝹䛾Ᏻᐃ㐠㌿䛻チᐜ䛥䜜䜛Ⓨ⇕ᇶ‽䡚㻌Suppression of premature thermal runaway (quench) in high-field HTS coils (2)䇵 Joule heating criteria of a thermal runaway for an insulated coil 䇵㻌ᮎᐩ భ䠄༓ⴥ኱䠅䠗ᣢ⏣ ᐶᕼ䠈㧗ᑿ ᬛ᫂䠄ୖᬛ኱䠅䠗ᮔ௵୰, ᰗ⃝ ྜྷ⣖䠈๓⏣ ⚽᫂䠄⌮◊䠅
SUETOMI Yu (Chiba Univ.)䠗MOCHIDA Hiroki, TAKAO Tomoaki (Sophia Univ.);
PIAO Renzhong, YANAGISAWA Yoshinori, MAEDA Hideaki (RIKEN)㻌㻝䠊䛿䛨䜑䛻㻌
㧗☢ሙ䛾⤯⦕ REBCO 䝁䜲䝹䛷䛿䚸㈇Ⲵ⋡䛾ప䛔⠊ᅖ䛷䛒䛳䛶䜒䚸㟁☢ຊ䛻㉳ᅉ䛧䛯ᛂຊ㞟୰䠄ᘬ䛝๤䛜䛧䚸ᗙᒅ䚸」ྜ
ᛂຊ䛺䛹䠅䛻䜘䛳䛶ᩘ mm 䜸䞊䝎䞊䛾ᒁᡤຎ໬䛜㉳䛝䚸ᐃᖖⓗ䛺Ⓨ⇕䛜኱䛝䛟䛺䜛䛸୙ྍ㏫䛺⇕ᭀ㉮䠄䜽䜶䞁䝏䠅䛻⮳䜛䚹䛣䛾✀䛾᪩ᮇ⇕ᭀ㉮䛾ᢚไ䛻䛿䚸䜎䛪ຎ໬䜢㜵䛠ᢏ⾡䛜㔜せ䛷䛒䜛䛜䚸10 km 䜸䞊䝎䞊䛾 REBCO ⥺ᮦ䜢⏝䛔䜛ᐇ䝁䜲䝹䛻䛚䛔䛶䚸䛣䛾✀䛾ຎ໬䜢᏶඲䛻᤼㝖䛩䜛䛣䛸䛿ᅔ㞴䛷䛒䜛䚹䛩䛺䜟䛱䚸⤯⦕䝁䜲䝹䛻䛚䛔䛶䛿䚸ᒁᡤຎ໬䛻䜘䜛䝁䜲䝹㟁ᅽ䛜Ⓨ⏕䛧䛯ሙྜ䛷䜒䚸⇕ᭀ㉮䜢㉳䛣䛥䛪䛻㐠㌿䛷䛝䜛ᐃᖖⓎ⇕䜽䝷䜲䝔䝸䜰䜢ᢕᥱ䛧䚸䛭䜜䜢㏻㟁䛾ୖ㝈䛸䛩䜛⪃䛘᪉䛜ᐇ⏝ୖᚲせ䛻䛺䛳䛶䛟䜛䚹ᮏሗ䛷䛿䚸㧗☢ሙ HTS (REBCO,
Bi-2223)䝁䜲䝹䛾⇕ᭀ㉮⌧㇟䜢䜒䛸䛻䝰䝕䝹໬䛧䛯ᩘ್ゎᯒ䛻䜘䜚䚸4.2 K 䛻䛚䛡䜛ᐃᖖⓎ⇕䜽䝷䜲䝔䝸䜰䜢య⣔໬䛧䚸チᐜ
Ⓨ⇕ᣦᶆ䜢ồ䜑䛯䚹䛿䜋䜌㉳䛝䛺䛔䛸䛔䛘䜛䛜䚸㧗☢ሙ䞉㧗㟁ὶᐦᗘ䛷䛿䚸REBCO 䛸ྠᵝ䛻 1 W ௨ୗ䛾ᑠ䛥䛔ᐃᖖⓎ⇕㔞䛷⇕ᭀ㉮䛩䜛䜘䛖䛻䛺䜛䛯䜑䚸ὀព䛜ᚲせ䛷䛒䜛䚹㻌㻠䠊䜎䛸䜑㻌
4.2 K䞉㧗☢ሙ䛾 HTS 䝁䜲䝹䛚䛔䛶䚸ᒁᡤຎ໬䛻䜘䜛㟁ᅽ䛜⏕䛨䛯䛸䛝䛻チᐜ䛥䜜䜛ᐃᖖⓎ⇕ᣦᶆ䜢ᩘ್ゎᯒ䛻䜘䛳䛶ᚓ䛯䚹㉸㧗☢ሙ NMR 䛺䛹䛻䛸䛳䛶ᐇ⏝ⓗ䛺㐠㌿⎔ቃ(>20 T,>200 A/mm2)䛻䛚䛔䛶䚸REBCO 䝁䜲䝹䛿 0.2 W ⛬ᗘ䚸
Bi-2223 䝁䜲䝹䛿 0.5 W ⛬ᗘ䛾ᐃᖖⓎ⇕䛾⠊ᅖ䛷㐠㌿䛩䜛ᚲせ䛜䛒䜛䚹≉䛻䚸ᒁᡤຎ໬䛾Ⓨ⏕䜢ᢚไ䛩䜛䛣䛸䛜ᅔ㞴䛺REBCO 䝁䜲䝹䛻䛚䛔䛶䛿䚸䛣䛾䜽䝷䜲䝔䝸䜰䛜≉䛻㔜せ䛷䛒䜚䚸ບ☢୰䛻䝁䜲䝹㟁ᅽ䜢⢭ᗘ䜘䛟䝰䝙䝍䞊䛧䚸ᐃᖖⓎ⇕㔞䜢ᢕᥱ䛩䜛ᡭἲ䛾㛤Ⓨ䛜ᚲ㡲䛷䛒䜛䚹㻌㻌㻌㻞䠊ᩘ್ゎᯒ䝰䝕䝹㻌‽ 2 ḟඖ⇕ఏᑟゎᯒ䛸㉸ఏᑟ⥺ᮦෆ୪ิᅇ㊰ゎᯒ䜢⏝䛔䛶䚸ෆᚄ 80 mm 䛾 5 䝍䞊䞁䝅䜾䝹䝟䞁䜿䞊䜻ᕳ䝁䜲䝹䜢䝰䝕䝹໬䛧䛯䚹REBCO ⥺ᮦ(4 mm×0.13 mm䠈Ic(77 K, SF) = 200 A,㖡Ᏻᐃ໬ᮦཌ䜏 50 ȝm)䛸㧗ᙉᗘ Bi-2223 ⥺ᮦ(4.5 mm×0.31
mm䠈Ic(77 K, SF) = 180 A䠈㖟ẚ 1.6)䜢᝿ᐃ䛧䛯䚹3 䝍䞊䞁┠୰ኸ㒊䛻ᐃᖖⓎ⇕䜢⏕䛨䛥䛫䛯᫬䛻䚸⇕ᭀ㉮䛻⮳䜛Ⓨ⇕䜢 Qtr 䛸䛩䜛䚹እ㒊☢ሙ䠄Bex: 0, 10, 20 T䚸⥺ᮦ㠃䛻୪⾜䠅䜢䝟䝷䝯䞊䝍䛻䛧䚸Qtr 䛸⥺ᮦ㟁ὶᐦᗘ Jcond 䛾㛵ಀ䜢ㄪ䜉䛯䚹ゎᯒ䛷䛿⮫⏺㟁ὶ䞉⮫⏺ ᗘ䞉Ᏻᐃ໬ᮦ᢬ᢠ⋡䛾☢ሙ౫Ꮡᛶ䜢⪃៖䛧䛯䚹⮫⏺ ᗘ䛿䚸୙ྍ㏫☢ሙ Birr-T ᭤⥺[1,2]䛻䜘䜚ᑟฟ䛧䛯䚹䜎䛯䚸䝁䜲䝹⾲㠃䛿᩿⇕䚸䝁䜲䝹➃ᮎ㒊䛾⥺ᮦ䛾䜏 4.2 K ᅛᐃቃ⏺᮲௳䛸䛧䚸෭፹䛾ᑐὶ෭༷䛜ຠ䛛䛺䛔⣔䜢᝿ᐃ䛧䛯䚹Fig.1 Qtr-Jcond curves of a REBCO coil (ID 80 mm, 5 turns).

㻌㻟䠊ゎᯒ⤖ᯝ䠖㻴㼀㻿 䝁䜲䝹䛾ᐃᖖⓎ⇕䜽䝷䜲䝔䝸䜰㻌
4.2 K 䛻䛚䛡䜛 Qtr-Jcond ᭤⥺䜢 Fig. 1䠄REBCO䠅䚸 Fig. 2
䠄Bi-2223䠅䛻♧䛩䚹๓ሗ䛷♧䛧䛯㟁☢ຊ䛻䜘䜛ຎ໬䛾ᐇ౛䛻
ᇶ䛵䛝䚸REBCO 䝁䜲䝹䛷䛿Ⓨ⇕㛗 10 mm䚸Bi-2223 䝁䜲䝹䛷
䛿Ⓨ⇕㛗 100 mm 䛸䛧䛯䚹
Fig. 1 䛻♧䛩㏻䜚 REBCO 䝁䜲䝹䛻䛚䛔䛶䛿䚸Bex 䛸 Jcond 䛻㛵䜟䜙䛪䚸Qtr 䛜 0.8 - 1 W 䛷䛒䜛䚹䛣䜜䛿䚸REBCO 䛾 Tc 䛾☢
ሙ౫Ꮡᛶ䛜ᑠ䛥䛟䚸䜎䛯ప㈇Ⲵ⋡䛻䛒䜛䛯䜑䛷䛒䜛䚹䛯䛰䛧䚸䛣䛾䜾䝷䝣䛾⠊ᅖ䜢㉸䛘䛯㧗㈇Ⲵ⋡(80%)䛾㐠㌿⎔ቃ䛷䛿⇕ⓗ䝬䞊䝆䞁䛜ᑠ䛥䛟䛺䜛䛯䜑 Qtr 䛿 0.2 W 䛻䜎䛷ῶᑡ䛩䜛䚹ྠ✀䛾 REBCO ⥺ᮦ䜢⏝䛔䛯ᐇ㝿䛾㧗☢ሙ䝁䜲䝹[3,4]䛻䛚䛡䜛⇕ᭀ㉮᫬䛾ᐃᖖⓎ⇕㔞䜢䝥䝻䝑䝖䛩䜛䛸䚸䛭䜜䛮䜜䜾䝷䝣ୖ䛾(a)䚸(b)䛻఩⨨䛩䜛䚹䛣䜜䜙䛾䝥䝻䝑䝖䛿 Qtr-Jcond ᭤⥺䛸ẚ䜉ᑡ䛧ప䛔䚹䛣䜜䛿䚸ᐇ㝿䛾䝁䜲䝹䛷䛿䚸⥺ᮦ㠃䛻ᆶ┤䛺☢ሙᡂศ䛻䜘䛳䛶 Je 䛜ప䛟䛺䛳䛶䛚䜚䚸䛥䜙䛻䚸䝍䞊䞁ᩘ䞉䝺䜲䝲䞊ᩘ䛜ከ䛟⇕䛿䛡䛜ᝏ䛔䛯䜑䛷䛒䜛䚹䛣䛾Ⅼ䛻䛴䛔䛶䛿䚸䛥䜙䛺䜛᳨ウ䜢⾜䛔ᙜ᪥Ⓨ⾲䛩䜛䚹
Fig. 2 䛻 Bi-2223 䝁䜲䝹䛾 Qtr-Jcond ᭤⥺䜢♧䛩䛜䚸REBCO䝁䜲䝹䛸䛿᣺䜛⯙䛔䛜኱䛝䛟␗䛺䜚䚸Bex 䛸 Jcond 䛜㧗䛟䛺䜛䜋䛹
Qtr 䛜኱䛝䛟ῶᑡ䛩䜛䚹Bi-2223 䛿䚸Tc 䛾☢ሙ౫Ꮡᛶ䛜኱䛝䛟䚸
䜎䛯䚸REBCO 䛸ẚ䜉䛶 Je 䛜ప䛔䛯䜑䚸⇕ⓗ䛺䝬䞊䝆䞁䛜㢧ⴭ䛻ῶᑡ䛩䜛䛯䜑䛷䛒䜛䚹ప☢ሙ୰䛷䛿ᩘ W 䝺䝧䝹䛾኱䛝䛔
ᐃᖖⓎ⇕䛻䜒⪏䛘䜛䛯䜑䚸ᐇ㉁ⓗ䛺㐠㌿᮲௳ୗ䛷䛿⇕ᭀ㉮㻌

Fig.2 Qtr-Jcond curves of a Bi-2223 coil (ID 80 mm, 5 turns).
ཧ⪃ᩥ⊩㻌[1] Fuger et al. IEEE TAS 19 (2009) 1532-1535[2] Ayai et al. Physica C 468 (2008) 1747-1752[3] Awaji et al. SuST 30 (2017) 065001[4] Yanagisawa et al. IEEE/CSC & ESAS SNF, July 2016
ㅰ㎡: ᮏ◊✲䛿 JST 䛾◊✲ᡂᯝᒎ㛤஦ᴗ䛂ᡓ␎ⓗ䜲䝜䝧䞊䝅䝵䞁๰ฟ᥎㐍䝥䝻䜾䝷䝮䛃(S-䜲䝜䝧)䛾ᨭ᥼䛻䜘䛳䛶⾜䜟䜜䛯䚹― 12 ―

第95回

2017年度秋季低温工学・超電導学会

1A-p03

HTS コイル保護㧗☢ሙ 㻴㼀㻿 䝁䜲䝹䛻⏕䛨䜛᪩ᮇ⇕ᭀ㉮㻔䜽䜶䞁䝏㻕䛾ᢚไ㻌 㻔㻟㻕㻌䡚㻺㻵 䝺䜲䝲䞊ᕳ䝁䜲䝹䛻䛚䛡䜛▷䛔☢ሙ㐜䜜䛸⮬ᕫಖㆤᛶ䛾୧❧䡚㻌㻿㼡㼜㼜㼞㼑㼟㼟㼕㼛㼚㻌㼛㼒㻌㼜㼞㼑㼙㼍㼠㼡㼞㼑㻌㼠㼔㼑㼞㼙㼍㼘㻌㼞㼡㼚㼍㼣㼍㼥㻌㻔㼝㼡㼑㼚㼏㼔㻕㻌㼕㼚㻌㼔㼕㼓㼔㻙㼒㼕㼑㼘㼐㻌㻴㼀㻿㻌㼏㼛㼕㼘㼟㻌㻔㻟㻕㻌 㻌䇵㻯㼛㼙㼜㼍㼠㼕㼎㼕㼘㼕㼠㼥㻌㼛㼒㻌㼍㻌㼟㼔㼛㼞㼠㻌㼒㼕㼑㼘㼐㻌㼐㼑㼘㼍㼥㻌㼍㼚㼐㻌㼟㼑㼘㼒㻙㼜㼞㼛㼠㼑㼏㼠㼕㼛㼚㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼒㼛㼞㻌㼍㻌㻺㻵㻌㼘㼍㼥㼑㼞㻙㼣㼛㼡㼚㼐㻌㼏㼛㼕㼘䇵㻌㻌ᮎᐩ భ䠄༓ⴥ኱䠅䠗㧗ᶫ ಇ஧䠈㧗ᑿ ᬛ᫂䠄ୖᬛ኱䠅䠗ᰗ⃝ ྜྷ⣖䠈๓⏣ ⚽᫂䠄⌮◊䠅
SUETOMI Yu (Chiba Univ.)䠗TAKAHASHI Shunji, TAKAO Tomoaki (Sophia Univ.);
YANAGISAWA Yoshinori, MAEDA Hideaki (RIKEN)㻌

5䠊䜎䛸䜑䝺䜲䝲䞊ᕳ䝁䜲䝹䛻䛚䛔䛶䚸▷䛔ບ☢㐜䜜䛸⮬ᕫಖㆤᛶ䜢୧❧䛩䜛ᡭἲ䛷䛒䜛 LNI ἲ䛾ຠᯝ䜢 77 K 䛻䛚䛔䛶ᐇド䛧䛯䚹䛣䛾ᡭἲ䛿䚸NMR 䛾ᵝ䛺㧗䛔☢ሙ⢭ᗘ䛜ᚲせ䛷䚸Ọஂ㟁ὶ䛜ồ䜑䜙䜜䜛ᶵჾ䛻䛚䛡䜛 REBCO 䝁䜲䝹䛾ᕳ⥺᪉ᘧ䛸䛧䛶ᮇᚅ䛷䛝䜛䚹௒ᚋ䚸4 K 䛻䛚䛡䜛≉ᛶ䚸㧗☢ሙ䛻䛚䛡䜛ホ౯䜢㐍䜑䜛䚹(a) NI coil(+)

1 turn inductance2䠊ᒙෆ㠀⤯⦕䠄intra-Layer No-Insulation: LNI䠅ἲ
Fig. 1(a)䛻䚸NI 䝺䜲䝲䞊ᕳ䝁䜲䝹䛻䛚䛡䜛ྛ䝍䞊䞁䛾䜲䞁䝎䜽䝍䞁䝇䛸ᚄ᪉ྥ䞉㍈᪉ྥ䛾⥺ᮦ㛫᥋ゐ᢬ᢠ䛛䜙ᡂ䜛ᅇ㊰ᵓ㐀䜢♧䛩䚹䝺䜲䝲䞊ྠኈ䛜䝅䝵䞊䝖䛩䜛஦䛷䚸㛗䛔ບ☢㐜䜜䛾ཎᅉ䛸䛺䜛኱䛝䛺஧ḟᅇ㊰䛜ᙧᡂ䛥䜜䜛䚹䝺䜲䝲䞊㛫䛻⤯⦕䝅䞊䝖䜢ධ䜜䜛஦䛷䝅䝵䞊䝖ᅇ㊰䜢ษ䜛䛸䚸ᅇ㊰ᵓ㐀䛿 Fig.
1(b)䛾ᵝ䛻䚸኱䛝䛺஧ḟᅇ㊰䜢䛺䛟䛩஦䛜䛷䛝䜛䚹䛣䛾ᅇ㊰ᵓ㐀䛿 NI 䝟䞁䜿䞊䜻ᕳ䝁䜲䝹䛸➼౯䛷䛒䜛䚹䛩䛺䜟䛱䚸ᗄఱⓗᙧ≧䛿䝺䜲䝲䞊ᕳ䝁䜲䝹䛾䜎䜎䚸NI 䝟䞁䜿䞊䜻ᕳ䝁䜲䝹䛸ྠ䛨ෆ㒊ᅇ㊰䛻䛺䜛䛾䛷䚸ບ☢㐜䜜䛾๻ⓗ䛺పῶ䛜ᮇᚅ䛷䛝䜛䚹

(+)

turn

1st
turn

2th
turn

2th
turn

1st

㻌

Axial contact resistance
19th
turn

19th
turn

20th
turn

20th
turn

1st layer

2nd layer

3rd layer

1st layer

2nd layer

3rd layer

Fig.1 Circuit models. (a) NI coil. (b) LNI coil.

15
10

5

Isupply 5
Bcenter
2000

0
4000

3000
Time (s)1010ʏ= 0.2 s

5

15

10

10
5

5
0

0

15

85

85.8

86

0
86.2 86.4 86.6 86.8

Isupply
Isupply
Bcenter
Bcenter

90
95
Time (s)50100Central magnetic field (mT)Power supply current (A)ʏ = 500 s

0㻌(b) LNI coil
( )(a) NI coil
10

pp y

3䠊ᐇ㦂᪉ἲREBCO ⥺ᮦ(ᖜ 4.0 mm䠈ཌ䜏 0.13 mm䠈㖡䝯䝑䜻)䜢⏝䛔䛶䚸䝺䜲䝲䞊㛫䛻䝫䝸䜲䝭䝗䝅䞊䝖(ཌ䛥 12.5 䃛m)䜢ᣳ䜏䛺䛜䜙䚸ෆ
ᚄ 80 mm 䛾 8 䝺䜲䝲䞊䠄⥲ᕳᩘ 157.9䠅䛾 LNI 䝁䜲䝹〇స䛧䛯䚹䝁䜲䝹䛾䝻䞊䝗䝷䜲䞁䛸⥺ᮦ䛾 Ic-B ᭤⥺䛛䜙ぢ✚䜒䛳䛯䝁䜲䝹
Ic 䛿 103 A 䛷䛒䜛䚹䛣䛾䝁䜲䝹䜢⏝䛔䛶䚸ᾮయ❅⣲୰䛷䚸☢ሙ㐜䜜䜢 ᐃ䛩䜛㟁※㐽᩿ヨ㦂䠄10 A䠅䛸䚸⇕ᭀ㉮䛛䜙䛾⮬ᕫಖㆤᛶ䜢ホ౯䛩䜛㐣㟁ὶヨ㦂䜢⾜䛳䛯䚹㐣㟁ὶヨ㦂䛷䛿䚸⇕ᭀ㉮䛜Ⓨ⏕䛩䜛䜎䛷ບ☢㏿ᗘ 0.16 A/s 䛷㏻㟁䛧䚸ྛ䝺䜲䝲䞊䛾㟁ᅽಙྕ(᭱ෆᒙ䜘䜚 V1䡚V8)䛸䚸䝪䜰ෆ䛾ୖ㒊䞉୰ᚰ㒊䞉ୗ㒊䛻ྲྀ䜚௜䛡䛯䝩䞊䝹⣲Ꮚ䛻䜘䜛☢ሙಙྕ(Bup, Bcenter,
Blow)䜢ィ 䛧䛯䚹

Power supply current (A)㻌

Fig.2 Measured magnetic field of current dump measurement.
(a) NI coil. (b) LNI coil.

(a)
V1
V2
V3
V4

0.2
0.1
0
856

Power supply current (A)

V5
V6
V7
V8

857
Time(s)

(b)

858

150
Isupply = 145.7 A 1

100
50
0
856

Isupply
Bup
Bcenter
Blow

Normalized
axial magnetic field (null)

Voltage (V)㻌㻌4䠊ᐇ㦂⤖ᯝ
Fig. 2 䛻䚸 (a)ẚ㍑⏝䛾ྠᙧ≧䛾 NI 䝺䜲䝲䞊ᕳ䝁䜲䝹[1]䚸
(b)௒ᅇ䛾 LNI 䝁䜲䝹䛾㟁※㐽᩿ヨ㦂䛾⤖ᯝ䜢♧䛩䚹LNI 䝁䜲䝹䛾☢ሙῶ⾶᫬ᐃᩘ Ĳ 䛿 0.2 s 䛷䛒䜚䚸ᚑ᮶䛾 NI 䝺䜲䝲䞊ᕳ䝁䜲䝹䛾 500 s 䛸ẚ㍑䛧䛶䚸๻ⓗ䛻▷䛔䠄1/2500䠅䚹
Fig. 3(a)䛻㐣㟁ὶヨ㦂䛻䛚䛡䜛ྛ䝺䜲䝲䞊㟁ᅽ䜢䚸Fig.
3(b)䛻㟁※㟁ὶ䛸☢ሙ䜢♧䛩䚹䛺䛚䚸☢ሙ䛿᭱኱್䛷ṇつ໬䛧䛯䚹㏻㟁㟁ὶ 145.7 A(㈇Ⲵ⋡ 141%)䛷䚸V1 䛛䜙ᛴ⃭䛺㟁ᅽୖ᪼䛜Ⓨ⏕䛧 V2 䛻ఏ᧛䛧䛯䚹V1 䛸 V2 䛜䝢䞊䜽䛻㐩䛧䛯᫬Ⅼ䛷䚸ᛴ⃭䛺☢ሙῶ⾶䛜ጞ䜎䛳䛯䚹䛣䛾᫬ V3-V8 䛻䛿㈇㟁ᅽ䛜Ⓨ⏕䛧䚸䝢䞊䜽䜢㏄䛘䛯䛾䛱 V1䚸V2 䛸䛸䜒䛻ῶ⾶䛧䛯䚹䛣䛾㐣⛬䠄<1 s䠅䛷୰ᚰ☢ሙ䛿⇕ᭀ㉮䛜㉳䛝䜛๓䛾 2 ๭䛻䜎䛷ῶᑡ䛧䛯䚹䛣䜜䛿䚸䜎䛪➨ 1䚸2 䝺䜲䝲䞊䛷⇕ᭀ㉮䠄䜽䜶䞁䝏䠅䛜㉳䛝㟁ὶ䛜ῶᑡ䛧䚸☢Ẽⓗ䛻⤖ྜ䛧䛯እᒙഃ䝺䜲䝲䞊䛾㟁ὶ䛜ቑ䛘䜛䛣䛸䛷㏿䜔䛛䛻⇕ᭀ㉮䛜ఏ᧛䛧䛯䛣䛸䜢♧䛩䚹䛣䛾ᚋ䚸⇕ᭀ㉮཰᮰ᚋ䜒䛥䜙䛻㟁ὶୖ᪼䛥䛫䜛ᐇ㦂䠄᭱኱
186 A䠅䜢⧞䜚㏉䛧䛯䛸䛣䜝䚸ཱྀฟ䛧㒊䛾⥺ᮦ䛜↝ᦆ䛧䛯䛜䚸ᕳ⥺㒊䛾㏻㟁≉ᛶ䛿ᐇ㦂๓ᚋ䛷ኚ໬䛿䛺䛟䚸⇕ᭀ㉮䛛䜙䛾⮬ᕫಖㆤᛶ䛜☜ㄆ䛥䜜䛯䚹⇕ᭀ㉮᫬䛾 Bup䠈Bcenter䠈Blow 䜢ẚ䜉䜛䛸䚸ྠᵝ䛾ῶ⾶䜹䞊䝤䜢ᥥ䛔䛶䛚䜚䚸䝁䜲䝹㍈᪉ྥ䛻䛴䛔䛶ᆒ୍䛺㟁ὶῶ⾶䛜㉳䛝䛯䛣䛸䜢♧䛧䛶䛔䜛䚹䛣䛾᣺䜛⯙䛔䛿䚸⇕ᭀ㉮᫬䛾㟁☢ຊ䜰䞁䝞䝷䞁䝇䜢㜵䛠ほⅬ䛛䜙᭷฼䛷䛒䜛䚹(b) LNI coil

Radial contact resistanceCentral magnetic field (mT)㻌1䠊䛿䛨䜑䛻
No-insulation (NI)ἲ䛻䜘䜜䜀䚸㟁☢ຊ䛷ᒁᡤຎ໬㒊䛜⏕䛨䛶䜒㟁ὶ䛜ຎ໬㒊䜢㎽ᅇ䛩䜛䛾䛷䚸Ⓨ⇕䛻䜘䜛⇕ᭀ㉮䛜⏕䛨䛺䛔䚹䛭䜜ᨾ䚸㉸㧗☢ሙ(>20T)䜢Ⓨ⏕䛥䛫䜛䛯䜑䛾 REBCO䝁䜲䝹䛾ᕳ⥺᪉ᘧ䛸䛧䛶ᴟ䜑䛶᭷ຠ䛷䛒䜛䚹୍᪉䚸☢ሙ⢭ᗘ䛸Ọஂ㟁ὶ㐠㌿䛾ほⅬ䛛䜙䛿䚸䝺䜲䝲䞊ᕳ䝁䜲䝹䛾᪉䛜ᮃ䜎䛧
䛔䛜䚸NI 䝺䜲䝲䞊ᕳ䝁䜲䝹䛷䛿䚸䝟䞁䜿䞊䜻ᕳ䝁䜲䝹䛸ẚ㍑䛧
䛶ᩘ᱆㛗䛔ບ☢㐜䜜䜢♧䛩䛾䛷[1]䚸ᐇ⏝ⓗ䛷䛿䛺䛔䛸⪃䛘䜙䜜䛶䛝䛯䚹䛣䜜䛿䚸ᕳ⥺ෆ㒊䛻኱䛝䛺஧ḟᅇ㊰䛜ᙧᡂ䛥䜜䜛஦䛜ཎᅉ䛷䛒䜛䚹ᡃ䚻䛿䚸NI 䝺䜲䝲䞊ᕳ䝁䜲䝹䛻䛚䛔䛶䚸▷䛔☢ሙ㐜䜜䛸䚸⇕ᭀ㉮㜵Ṇ䞉⮬ᕫಖㆤᛶ䜢୧❧䛩䜛᪂䛯䛺ᡭἲ䜢ᥦ᱌䛧䚸ᐇ㦂䛻䜘䜚ᐇド䛧䛯䛾䛷ሗ࿌䛩䜛䚹

0.5

0
857
858
Time (s)Fig.3 (a) Layer voltages and (b) power supply current andnormalized magnetic field in an over current operation.
㻌
㻌

ཧ⪃ᩥ⊩
[1] Suetomi et al. SuST 29 (2016) 10502

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第95回

2017年度秋季低温工学・超電導学会

1A-p04

HTS コイル保護ఏᑟ෭༷ᆺ㧗

㉸㟁ᑟ䝁䜲䝹䛾ಖㆤᢏ⾡㻔㻝㻕㻌
㻙㛤Ⓨ᪉㔪㻙㻌

㻽㼡㼑㼚㼏㼔㻌㼜㼞㼛㼠㼑㼏㼠㼕㼛㼚㻌㼠㼑㼏㼔㼚㼕㼝㼡㼑㻌㼒㼛㼞㻌㼍㻌㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻙㼏㼛㼛㼘㼑㼐㻌㻴㼀㻿㻌㼏㼛㼕㼘㻌㻙㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼜㼛㼘㼕㼏㼥㻙㻌㻌ᐑ㷂㻌 ᐶྐ䠈ᒾ஭㻌 ㈆᠇䠈ᡞᆏ㻌 Ὀ㐀䠈▼஭㻌 ♸௓䠈㔝ᮧ㻌 ಇ⮬䠈᮶ᰨ㻌 ດ䠄ᮾⰪ䜶䝛䝹䜼䞊䝅䝇䝔䝮䝈䠅㻌㻹㻵㼅㻭㼆㻭㻷㻵㻌㻴㼕㼞㼛㼟㼔㼕䠈㻌 㻵㼃㻭㻵㻌㻿㼍㼐㼍㼚㼛㼞㼕䠈㻌 㼀㻻㻿㻭㻷㻭㻌㼀㼍㼕㼦㼛䠈㻌 㻌㻵㻿㻴㻵㻵㻌㼅㼡㼟㼡㼗㼑䠈㻌 㻺㻻㻹㼁㻾㻭㻌㻿㼔㼡㼚㼖㼕䠈㻌 㻷㼁㻾㼁㻿㼁㻌㼀㼟㼡㼠㼛㼙㼡㻌㻔㼀㼛㼟㼔㼕㼎㼍㻌㻱㼚㼑㼞㼓㼥㻌㻿㼥㼟㼠㼑㼙㼟㻌㻒㻌㻿㼛㼘㼡㼠㼕㼛㼚㼟㻌㻯㼛㼞㼜㼛㼞㼍㼠㼕㼛㼚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼔㼕㼞㼛㼟㼔㼕㻝㻣㻚㼙㼕㼥㼍㼦㼍㼗㼕㻬㼠㼛㼟㼔㼕㼎㼍㻚㼏㼛㻚㼖㼜㻌㻌ῶ⾶䜢㏿䜑䜛ᵓᡂ䛸䛧䛯䚹䛯䛸䛘䜀䝟䞁䜿䞊䜻䜢✚ᒙ䛧䛯䝁䜲㻝䠊䛿䛨䜑䛻㻌
䝹䛷䛒䜜䜀䚸䝟䞁䜿䞊䜻䛤䛸䛻ᚤᑠ᢬ᢠ䜢ྲྀ䜚௜䛡䜛䛣䛸䜒䛷㧗㟁ὶᐦᗘタィ䛾ఏᑟ෭༷㧗 ㉸㟁ᑟ䝁䜲䝹䛿䚸䜽䜶䞁䛝䜛䚹ᐇ㝿䛻 㻠 ✚ᒙ 㻾㻱㻮㻯㻻 䝁䜲䝹䜢ヨస䛧䚸㻞 ✚ᒙ䝁䜲䝹ẖ䝏䠄⇕ᭀ㉮䠅䛩䜛䛸↝ᦆ䛩䜛༴㝤ᛶ䛜ᴟ䜑䛶㧗䛔䛯䜑䚸䜽䜶䞁䛻ᚤᑠ᢬ᢠ䜢ྲྀ䜚௜䛡䜛䛣䛸䛷ಖㆤ䛜ྍ⬟䛷䛒䜛䛣䛸䜢ᐇ㦂䛸䝏䛻ᑐ䛩䜛䝁䜲䝹ಖㆤタィ䛜㔜せ䛸䛺䜛䚹䛣䜜䜎䛷⇕ᭀ㉮㝈ゎᯒ䛾୧㠃䛷☜ㄆ䛧䛯䚹㻌⏺䜢ṇ☜䛻ண 䛧䚸䝁䜲䝹 ᗘ䜢䝰䝙䝍䛧䛶ᮍ↛䛻㜵Ṇ䛩䜛㻌᪉ἲ䜢᥇⏝䛧䛶䛝䛯䚹௒ᅇ䚸᪂䛯䛺䝁䜲䝹ಖㆤ᪉ἲ䛸䛧䛶䚸䝣㻡䠊ᑟ㟁ᛶᶞ⬡䛷䝍䞊䞁㛫䜢▷⤡䛧䛯䝁䜲䝹ಖㆤ䠄㻝㻭㻙㼜㻜㻢䠅㻌䝷䝑䜽䝇䝣䝻䞊᢬ᢠⓎ⏕᫬䛻䚸㟁ὶ䛾㎽ᅇ㊰䛸䛧䛶䚸䝁䜲䝹䛾▷⤡⟠ᡤ䜢ቑ䜔䛧䛶䛔䛟䛸᭱⤊ⓗ䛻䛿䝍䞊䞁㛫䜢▷⤡䛧䛯୧➃䜢ᚤᑠ᢬ᢠ䠄㉸㟁ᑟ䝇䜲䝑䝏䠅䛷▷⤡䛩䜛᪉ἲ䚸䛚䜘䜃䝍↓⤯⦕䝁䜲䝹䛸ྠ䛨ᛮ᝿䛸䛺䜛䚹↓⤯⦕䝁䜲䝹䛿䝍䞊䞁㛫䛾᢬䞊䞁㛫䜢ᚤᑠ᢬ᢠ䠄ᑟ㟁ᛶᶞ⬡䠅䛷▷⤡䛩䜛᪉ἲ䛾 㻞 䛴䛾䝁ᢠ䛜ᑠ䛥䛩䛞䜛䛸ບ☢᫬䛾☢ሙ㐜䜜䛜ၥ㢟䛸䛺䜛䚹䜎䛯䚸ఏᑟ䜲䝹ಖㆤᡭἲ䛾㛤Ⓨ䜢㐍䜑䛶䛔䜛䚹㻌෭༷䝁䜲䝹䛷䛿䚸෭෾ᶵ䛸⥺ᮦ䜢㐺ษ䛺෭༷䝟䝇䛷䛴䛺䛠䛯㻌䜑䝁䜲䝹䛿ᶞ⬡ྵᾐ䛩䜛ᚲせ䛜䛒䜛䛜䚸ᶞ⬡ྵᾐ䛥䜜䛯䝁䜲㻞䠊䜽䜶䞁䝏䠄⇕ᭀ㉮䠅ཎᅉ㻌䝹䛾ෆ㒊䛷䛿䝍䞊䞁㛫䛾㟁Ẽⓗ䛺᥋⥆䛜㞴䛧䛔䛰䛡䛷䛺䛟䚸㧗 ㉸㟁ᑟ䝁䜲䝹䛿䚸⇕ⓗᏳᐃᛶ䛜㧗䛔䛯䜑䚸ప ㉸㟁෭༷᫬䛾⇕ᛂຊ䛷㉸㟁ᑟ≉ᛶ䛜ຎ໬䛧䛶䛧䜎䛖䚹䛭䛣䛷䚸⇕ᑟ䝁䜲䝹䛾䜘䛖䛻䝽䜲䝲䞊䝰䞊䝅䝵䞁䜔ྵᾐᮦ䛾๭䜜䛺䛹䛾䜟ᛂຊ䜢పῶ䛧䛴䛴䝍䞊䞁㛫䜢㟁Ẽⓗ䛻᥋⥆䛩䜛᪉ἲ䛸䛧䛶䚸䛪䛛䛺ᨐ஘䛷䜽䜶䞁䝏䛩䜛ྍ⬟ᛶ䛿ప䛟䚸䜽䜶䞁䝏䛾ཎᅉ䛸䛧䝟䞁䜿䞊䜻䛾ഃ㠃䜢ᑟ㟁ᛶ䛾ᶞ⬡䛷ྵᾐ䛩䜛ಖㆤ᪉ἲ䛾㛤䛶䛿䚸䐟䝁䜲䝹䛾Ⓨ⇕䠄䝣䝷䝑䜽䝇䝣䝻䞊ᦆኻ䚸஺ὶᦆኻ䚸᥋⥆Ⓨ䜢㐍䜑䛶䛔䜛䚹㻲㼕㼓㻚㻌㻞 䛻♧䛩䜘䛖䛻䝍䞊䞁㛫䛻䛿㞳ᙧฎ⌮䛧㒊䛾䝆䝳䞊䝹ᦆኻ䚸 㟁ὶᦆኻ䠅䚸䐠㉸㟁ᑟ≉ᛶ䛾ຎ໬䠄෭䛯䝫䝸䜲䝭䝗䝔䞊䝥䜢ᤄධ䛩䜛䛣䛸䛷⇕ᛂຊ䛻䜘䜛ຎ໬䜢ᅇ㑊༷᫬䛾⇕ᛂຊ䚸㟁☢ຊ䚸⤯⦕◚ቯ䠅䚸䐡䝅䝇䝔䝮ᨾ㞀䠄ィ ⣔䚸䛧䚸䛛䛴ᑟ㟁ᛶ䛾ᶞ⬡䛷ྵᾐ䛩䜛䛣䛸䛷䚸䝣䝷䝑䜽䝇䝣䝻䞊᢬㟁※䚸᩿⥺䚸ಖㆤ⣔䚸෭༷⣔䠅䛺䛹䛜⪃䛘䜙䜜䜛䚹㻌ᢠ䛜Ⓨ⏕䛧䛯㝿䛻䛿䚸ᑟ㟁ᛶᶞ⬡䜢௓䛧䛶㟁ὶ䜢㎽ᅇ䛥䛫䜛㧗 ㉸㟁ᑟ䝁䜲䝹䛿ᖖఏᑟ㡿ᇦ䛜ᗈ䛜䜚䛻䛟䛔䛯䜑䚸㟁䛣䛸䛜䛷䛝䜛䚹ᑟ㟁ᛶᶞ⬡䛿䚸㔠ᒓ䝣䜱䝷䞊䜢ᶞ⬡䛻ΰ䛬䛶ᙧᅽⓎ⏕䛷䜽䜶䞁䝏䜢᳨ฟ䛧䛯᫬Ⅼ䛷䚸䛩䛷䛻ᒁᡤⓗ䛻 ᗘ䛜ᡂ䛩䜛䚹䜎䛯䚸㔠ᒓ䝣䜱䝷䞊䛾✀㢮䜔㔞䜢ኚ໬䛥䛫䜛䛣䛸䛷䝍ୖ᪼䛧䛶䛚䜚䚸↝ᦆ䜢ᅇ㑊䛩䜛䛣䛸䛜ᅔ㞴䛸䛺䜛䚹䜎䛯䚸↝ᦆ䜢䞊䞁㛫䛾᢬ᢠ䜢䝁䞁䝖䝻䞊䝹䛧䚸ບ☢᫬䛾☢ሙ䛾㐜䜜䛾ᙳ㡪㜵䛠䛯䜑䛻㟁ὶᐦᗘ䜢ୗ䛢䛶䛧䜎䛖䛸䚸㧗㟁ὶᐦᗘ໬䛻䜘䜛䜢పῶ䛷䛝䜛䚹௒ᅇ䚸ᐇ㝿䛻ᑟ㟁ᛶᶞ⬡䛷ྵᾐ䛧䛯 㻾㻱㻮㻯㻻ᑠᆺ໬䛸䛔䛖㧗 ㉸㟁ᑟ䛾䝯䝸䝑䝖䛜ኻ䜟䜜䛶䛧䜎䛖䚹䛭䛣䛷䚸䝁䜲䝹䜢ヨస䛧䚸ᾮయ❅⣲୰䛚䜘䜃ఏᑟ෭༷୰䛻䛶㏻㟁ヨ㧗㟁ὶᐦᗘᵓᡂ䜢⥔ᣢ䛧䛴䛴ಖㆤྍ⬟䛺᪉ἲ䛻䛴䛔䛶᳨ウ㦂䜢ᐇ᪋䛧䚸ಖㆤ䛜ྍ⬟䛷䛒䜛䛣䛸䜢☜ㄆ䛧䛯䚹㻌䛧䛯䚹㻌㻌㻌㻢䠊䜎䛸䜑㻌
㻟䠊䝁䜲䝹ಖㆤᛮ᝿㻌ఏᑟ෭༷ᆺ㧗 ㉸㟁ᑟ䝁䜲䝹䛾ಖㆤᡭἲ䛸䛧䛶䚸䝣䝷䝑䜽䛣䜜䜎䛷䚸ఏᑟ෭༷㧗 ㉸㟁ᑟ䝁䜲䝹䛾ಖㆤ᪉ἲ䛸䛧䛶䚸䝇䝣䝻䞊᢬ᢠⓎ⏕᫬䛻䚸䝁䜲䝹୧➃䛻ྲྀ䜚௜䛡䛯ᚤᑠ᢬ᢠ䛻⇕ᭀ㉮㝈⏺䜢ṇ☜䛻ண 䛧䚸䝁䜲䝹 ᗘ䜢䝰䝙䝍䛧䛶ᮍ↛䛻㟁ὶ䜢㎽ᅇ䛥䛫䜛᪉ἲ䚸䛚䜘䜃ᑟ㟁ᛶᶞ⬡䜢௓䛧䛶䝍䞊䞁㛫㜵Ṇ䛩䜛᪉ἲ䜢᥇⏝䛧䛶䛝䛯䚹䛧䛛䛧䛺䛜䜙䚸䝁䜲䝹䛾㉸㟁ᑟ䛻㟁ὶ䜢㎽ᅇ䛥䛫䜛᪉ἲ䛾㛤Ⓨ䜢㐍䜑䛶䛔䜛䚹௒ᚋ䚸䛭䜜䛮≉ᛶ䛜ຎ໬䛧䛶䛧䜎䛖䛸䚸ṇ☜䛺ண 䛜ᅔ㞴䛻䛺䜛䚹䜎䛯䚸㏆䜜䛾᪉ᘧ䛷ಖㆤྍ⬟䛺⠊ᅖ䜢᫂☜䛻䛩䜛䛯䜑䚸 ᗘ䚸㟁ὶᖺ䚸䝍䞊䞁㛫䛾⤯⦕ᮦ䜢↓䛟䛧䛯↓⤯⦕䝁䜲䝹䛾◊✲䛜┒䜣ᐦᗘ䛚䜘䜃⵳✚䜶䝛䝹䜼䞊䛺䛹䜢䝟䝷䝯䞊䝍䛸䛧䛯᳨ウ䜢㐍䛻㐍䜑䜙䜜䚸⮫⏺㟁ὶ䜢㉸䛘䛶㏻㟁䛧䛶䜒↝ᦆ䛧䛺䛔⤖ᯝ䛜䜑䚸ᮏಖㆤᡭἲ䛾᭷ຠᛶ䜢᳨ド䛧䛶䛔䛟䚹㻌♧䛥䜜䛶䛔䜛䚹↓⤯⦕䝁䜲䝹ᵓᡂ䛷䛿ఏᑟ෭༷䜈䛾ᑐᛂ䛾㞴㻌䛧䛥䜔ບ☢᫬䛾☢ሙ㐜䜜䛺䛹䛜ㄢ㢟䛸䛺䛳䛶䛔䜛䚹䛭䛣䛷䚸᪂䛯䛺᪉ᘧ䛸䛧䛶䚸䝁䜲䝹୧➃䜢ᚤᑠ᢬ᢠ䠄㉸㟁ᑟ䝇䜲䝑䝏䠅䛷
Cooling plate▷⤡䛧䚸䝣䝷䝑䜽䝇䝣䝻䞊᢬ᢠⓎ⏕᫬䛻ᚤᑠ᢬ᢠ䛻㟁ὶ䜢㎽
FRP sheetᅇ䛥䛫䜛ಖㆤ᪉ἲ䛾㛤Ⓨ䜢㐍䜑䛶䛔䜛䚹㻌
Conductive㻌epoxy resin
Cryocooler㻠䠊ᚤᑠ᢬ᢠ䛷䝁䜲䝹୧➃䜢▷⤡䛧䛯䝁䜲䝹ಖㆤ䠄㻝㻭㻙㼜㻜㻡䠅㻌REBCO tapeఱ䜙䛛䛾␗ᖖ䛷䝁䜲䝹 ᗘ䛜ୖ᪼䛧䚸䝁䜲䝹ෆ㒊䛻䝣䝷䝑
Polyimide tape䜽䝇䝣䝻䞊᢬ᢠ䛜⏕䛨䛯ሙྜ䛻䚸䝁䜲䝹䛸୪ิ䛻ྲྀ䜚௜䛡䛯ᚤᑠ᢬ᢠ䛻㟁ὶ䜢㎽ᅇ䛥䛫䜛䛣䛸䛷䝁䜲䝹䛻ὶ䜜䜛㟁ὶ䜢⮬ືⓗ䛻ῶᑡ䛥䛫䝁䜲䝹䜢ಖㆤ䛩䜛䚹䛺䛚䚸ᚤᑠ᢬ᢠ䜢㉸㟁ᑟ䝇䜲䝑䝏䛸䛩䜛䛣䛸䛷䚸ບ☢᫬䛻ᚤᑠ᢬ᢠ䛻㟁ὶ䛜㎽ᅇ䛧䛶䛧䜎䛖䛾䜢㜵Ṇ䛩䜛䛣䛸䛜䛷䛝䜛䚹㻌
Cooling plateᮏᡭἲ䛜㐺⏝ྍ⬟䛺⠊ᅖ䛿䚸 ᗘୖ᪼㏿ᗘ䛜㟁ὶῶ⾶Pancake coil
㻌㏿ᗘ䜢ୗᅇ䜛⠊ᅖ䛷䛒䜚䚸⵳✚䜶䝛䝹䜼䞊䛜኱䛝䛔䝁䜲䝹䜈㻲㼕㼓㻚㻌㻝㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼐㼞㼍㼣㼕㼚㼓㻌㼛㼒㻌㻴㼀㻿㻌㼏㼛㼕㼘㻌㼕㼙㼜㼞㼑㼓㼚㼍㼠㼑㼐㻌㼣㼕㼠㼔㻌䛾㐺⏝䛿ᅔ㞴䛸䛺䜛䚹䛭䛣䛷䚸ᚤᑠ᢬ᢠ䜢」ᩘྲྀ䜚௜䛡䚸㟁ὶ㼏㼛㼚㼐㼡㼏㼠㼕㼢㼑㻌㼑㼜㼛㼤㼥㻌㼞㼑㼟㼕㼚㻌― 14 ―

第95回

2017年度秋季低温工学・超電導学会

1A-p05

HTS コイル保護ఏᑟ෭༷ᆺ㧗 ㉸㟁ᑟ䝁䜲䝹䛾ಖㆤᢏ⾡㻔㻞㻕㻌䠉䝣䝷䝑䜽䝇䝣䝻䞊᢬ᢠ䜢฼⏝䛧䛯䝁䜲䝹ಖㆤ䇷㻌㻽㼡㼑㼚㼏㼔㻌㼜㼞㼛㼠㼑㼏㼠㼕㼛㼚㻌㼠㼑㼏㼔㼚㼕㼝㼡㼑㻌㼒㼛㼞㻌㼍㻌㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻙㼏㼛㼛㼘㼑㼐㻌㻴㼀㻿㻌㼏㼛㼕㼘㻌㻔㻞㻕㻌䠉㻼㼞㼛㼠㼑㼏㼠㼕㼛㼚㻌㼙㼑㼠㼔㼛㼐㻌㼡㼟㼕㼚㼓㻌㼒㼘㼡㼤㻌㼒㼘㼛㼣㻌㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑䠉㻌― 15 ―&XUUHQW $7HPSHUDWXUH .

㻌ᒾ஭㻌 ㈆᠇䠈ᐑ㷂㻌 ᐶྐ䠈኱㇂㻌 Ᏻぢ䠈▼஭㻌 ♸௓䠈㔝ᮧ㻌 ಇ⮬䠄ᮾⰪ䜶䝛䝹䜼䞊䝅䝇䝔䝮䝈䠅㻌㻵㼃㻭㻵㻌㻿㼍㼐㼍㼚㼛㼞㼕㻘㻌㻹㻵㼅㻭㼆㻭㻷㻵㻌㻴㼕㼞㼛㼟㼔㼕䠈㻻㻴㼀㻭㻺㻵㻌㼅㼍㼟㼡㼙㼕㻘㻌 㻌㻵㻿㻴㻵㻵㻌㼅㼡㼟㼡㼗㼑㻘㻌㻺㻻㻹㼁㻾㻭㻌㻿㼔㼡㼚㼖㼕㻌㻔㼀㼛㼟㼔㼕㼎㼍㻌㻱㼚㼑㼞㼓㼥㻌㻿㼥㼟㼠㼑㼙㼟㻌㻒㻌㻿㼛㼘㼡㼠㼕㼛㼚㼟㻌㻯㼛㼞㼜㼛㼞㼍㼠㼕㼛㼚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼟㼍㼐㼍㼚㼛㼞㼕㻚㼕㼣㼍㼕㻬㼠㼛㼟㼔㼕㼎㼍㻚㼏㼛㻚㼖㼜㻌㻌㻡䠊䜎䛸䜑㻌
㻝䠊䛿䛨䜑䛻㻌
䝣䝷䝑䜽䝇䝣䝻䞊᢬ᢠ䛾Ⓨ⏕䛻䜘䜛ᚤᑠ᢬ᢠయ䜈䛾㟁ὶ㎽ఏᑟ෭༷ᆺ㧗 ㉸㟁ᑟ䝁䜲䝹䛾ಖㆤ䜢┠ⓗ䛸䛧䛯㛤Ⓨ䜢ᅇ⌧㇟䜢฼⏝䛧䛯ಖㆤᅇ㊰䛻䛴䛔䛶䚸⵳✚䜶䝛䝹䜼䞊㻡㻚㻠㻌 㼗㻶㐍䜑䛶䛔䜛䚹⇕ᭀ㉮๓䛻䝁䜲䝹䛜Ⓨ⏕䛩䜛䝣䝷䝑䜽䝇䝣䝻䞊᢬䛾䠐✚ᒙ 㻾㻱㻮㻯㻻 䝁䜲䝹䜢䝰䝏䞊䝣䛸䛧䛯ಖㆤືస䜢᳨ド䛧䛯䚹ᢠ䜢฼⏝䛧䛯䝁䞁䝉䝥䝖䛷䛒䜚䚸䛭䛾 㻝 䛴䛸䛧䛶ప 㒊䛾䝁䜲䝹⤖ᯝ䚸䝁䜲䝹 ᗘ䛾ୖ᪼᫬䚸㻾㻱㻮㻯㻻 䝁䜲䝹䛻ὶ䜜䜛㟁ὶ್୧➃䛻ᚤᑠ᢬ᢠయ䜢᥋⥆䛧䚸㟁ὶ䜢㎽ᅇ䛥䛫䜛᪉ᘧ䜢ᥦ᱌䛧䛿⮬ືⓗ䛻ῶᑡ䛧䚸⇕ᭀ㉮䛾ᅇ㑊䛻ᡂຌ䛧䛯䚹௒ᚋ䚸㟁ὶᐦ䛶䛔䜛䚹䛣䜜䜎䛷䛻䚸⵳✚䜶䝛䝹䜼䞊䛜 㻝㻌㼗㻶 䛾 㻾㻱㻮㻯㻻 䝁䜲䝹ᗘ䜔 ᗘୖ᪼㏿ᗘ䜢ኚ໬䛥䛫䛯ヨ㦂䜢㐍䜑䛶䛔䛟䚹㻌䜢䝰䝏䞊䝣䛸䛧䛯ཎ⌮᳨ドヨ㦂䜢ᐇ᪋䛧䛶䛚䜚㼇㻝㼉䚸୍ᐃ㟁ὶ㻌್ 㻝㻥㻜㻌 㻭 䜢㏻㟁䛧䛺䛜䜙䝁䜲䝹 ᗘ䜢ୖ᪼䛥䛫䛯㝿䚸㈇Ⲵ⋡㼀㼍㼎㼘㼑㻌㻝㻌㻿㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼠㼑㼟㼠㻌㼏㼛㼕㼘㻌㼏㼛㼙㼜㼛㼟㼑㼐㻌㼛㼒㻌㼍㻌㼟㼠㼍㼏㼗㻌㼛㼒㻌䛾ୖ᪼䛻క䛔ᚤᑠ᢬ᢠయ䛻㟁ὶ䛜㎽ᅇ䛧䚸⇕ᭀ㉮䛾ᅇ㑊䜢㼒㼛㼡㼞㻌㼟㼕㼚㼓㼘㼑㻌㼜㼍㼚㼏㼍㼗㼑㼟㻚㻌☜ㄆ䛧䛯䚹䛯䛰䛧䚸⵳✚䜶䝛䝹䜼䞊䛜㧗䛟䛺䜛䛸⇕ᭀ㉮䛾ᅇ㑊㼀㼍㼜㼑㻌㼣㼕㼐㼠㼔㻌㻔㼙㼙㻕㻌㻠㻌䛿䚸䜘䜚㞴䛧䛟䛺䜛䚹䛭䛣䛷௒ᅇ䚸⵳✚䜶䝛䝹䜼䞊䛜 㻡㻚㻠㻌㼗㻶 䛾 㻠㼀㼍㼜㼑㻌㼠㼔㼕㼏㼗㼚㼑㼟㼟㻌㻔㼙㼙㻕㻌㻜㻚㻝㻣㻌✚ᒙ 㻾㻱㻮㻯㻻 䝁䜲䝹䜢ヨస䛧䚸㧗㈇Ⲵ⋡㐠㌿䛧䛯㝿䛾ಖㆤື㼀㼍㼜㼑㻌㼘㼑㼚㼓㼠㼔㻌㻔㼙㻛㼜㼍㼚㼏㼍㼗㼑㻕㻌㻝㻡㻠㻌స䜢᳨ド䛧䛯䛾䛷ሗ࿌䛩䜛䚹㻌㻵㼚㼚㼑㼞㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌㻔㼙㼙㻕㻌㻞㻜㻜㻌㻌㻻㼡㼠㼑㼞㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌㻔㼙㼙㻕㻌㻞㻥㻝㻌㻞䠊㻠 ✚ᒙ 㻾㻱㻮㻯㻻 䝁䜲䝹䛾ㅖඖ㻌㻺㼡㼙㼎㼑㼞㻌㼛㼒㻌㼠㼡㼞㼚㼟㻛㼜㼍㼚㼏㼍㼗㼑㻌㻞㻜㻜㻌ಖㆤືస䛾᳨ドヨ㦂䛻౑⏝䛧䛯䠐✚ᒙ 㻾㻱㻮㻯㻻 䝁䜲䝹䛾㻺㼡㼙㼎㼑㼞㻌㼛㼒㻌㼟㼠㼍㼏㼗㼟㻌㻠㻌ㅖඖ䜢 㼀㼍㼎㼘㼑㻌㻝 䛻♧䛩䚹㻠 䛴䛾䝅䞁䜾䝹䝟䞁䜿䞊䜻䛿䚸ྠㅖඖ㼀㼛㼠㼍㼘㻌㼕㼚㼐㼡㼏㼠㼍㼚㼏㼑㻌㻔㼙㻴㻕㻌 㻌㻞㻞㻝㻌䛷ヨస䛧䚸䝟䞁䜿䞊䜻ྠኈ䛾ᒙ㛫䛻䛿䚸ఏᑟ෭༷⏝䛻䜰䝹䝭㻻㼜㼑㼞㼍㼠㼕㼚㼓㻌㼏㼡㼞㼞㼑㼚㼠㻌㻔㻭㻕㻌㻞㻞㻜㻌㻿㼠㼛㼞㼑㼐㻌㼑㼚㼑㼞㼓㼥㻌㻔㼗㻶㻕㻌㻡㻚㻠㻌ఏ⇕ᯈ䜢ᤄධ䛧䛯䚹㻞㻞㻜㻌 㻭 ㏻㟁᫬䚸䝁䜲䝹᩿㠃䛷䛾㟁ὶᐦᗘ䛿 㻞㻜㻜㻌 㻭㻛㼙㼙㻞 䛸䛺䜛䚹䜎䛯䚸䜲䞁䝎䜽䝍䞁䝇䛿䚸ཎ⌮᳨ドヨ㦂䛷⏝䛔䛯 㻞 ✚ᒙ 㻾㻱㻮㻯㻻 䝁䜲䝹䛾⣙ 㻠 ಸ䛸䛺䜛 㻞㻞㻝㻌 㼙㻴 䛷䚸e‫& ڀ‬U\RVWDW⵳✚䜶䝛䝹䜼䞊䛿 㻡㻚㻠㻌㼗㻶 䛷䛒䜛䚹䛺䛚䚸ヨస䛧䛯䝅䞁䜾䝹䝟䞁䜿䞊䜻䛿䚸䛭䜜䛮䜜ᾮయ❅⣲୰䛷㏻㟁᳨ᰝ䛧䚸㻠 䛴䛸䜒㉸㟁
5(%&2FRLOᑟ≉ᛶ䛻ຎ໬䛜䛺䛔䛣䛸䜢☜ㄆ䛧䛯ୖ䛷ఏᑟ෭༷ヨ㦂⿦⨨/RZ䛻⤌䜏㎸䜣䛰䚹㻌
ŬFRLO
ŬU UHVLVWRU([WHUQDO '&㻌
SRZHU
UHVLVWRUVXSSO\
㻟䠊ಖㆤᅇ㊰䛾ᵓᡂ㻌/RZŬFRLO
ŬU UHVLVWRUᅇ㊰ᵓᡂ䜢 㻲㼕㼓㻚㻌㻝 䛻♧䛩䚹௒ᅇ䚸䜲䞁䝎䜽䝍䞁䝇䚸䛚䜘䜃⵳✚䜶䝛䝹䜼䞊䛜䚸ཎ⌮᳨ドヨ㦂᫬䜘䜚䜒㧗䛟䛺䛳䛯䛣䛸䛻ᑐᛂ
6KXQW
䛩䜛䛯䜑䚸㻠 ✚ᒙ䛾୧➃䛷䛿䛺䛟䚸㻞 ᒙẖ䛾୧➃䜢▷⤡䛩䜛䜘ŬRS
UHVLVWRU
㻌䛖䛻䚸㻞 䛴䛾ᚤᑠ᢬ᢠయ䜢୪ิ᥋⥆䛧䛯䚹䛺䛚䚸ບ☢᫬䛾ᚤ㻲㼕㼓㻚㻌㻝㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼐㼕㼍㼓㼞㼍㼙㻌㼛㼒㻌㼠㼔㼑㻌㼜㼞㼛㼠㼑㼏㼠㼕㼛㼚㻌㼏㼕㼞㼏㼡㼕㼠㻚㻌ᑠ᢬ᢠయ䜈䛾ศὶ䜢ᢚไ䛩䜛䛯䜑䚸ᚤᑠ᢬ᢠయ䛻䛿䝠䞊䝍㻌䞊䜢ྲྀ䜚௜䛡䛶䛚䜚䚸Ọஂ㟁ὶ䝇䜲䝑䝏䛾䜘䛖䛻ບ☢᫬䛻䛿ᖖ
7HPSHUDWXUH
([S
&DO
㟁ᑟ㌿⛣ ᗘ௨ୖ䛻᪼ 䛧䛯䚹ບ☢┤ᚋ䛾ึᮇ≧ែ䛿䚸䜋&XUUHQW([S&DO䜌඲䛶䛾㟁ὶ䛜䝁䜲䝹䜈ὶ䜜䜛䚹୍᪉䚸䝁䜲䝹 ᗘ䛜ୖ᪼䛩䜛䛺䛹䛧䛶㈇Ⲵ⋡䛜ୖ䛜䜚䚸䝣䝷䝑䜽䝇䝣䝻䞊᢬ᢠ䛜Ⓨ⏕䛩䜛䛸䚸┤ὶ㟁※䛛䜙౪⤥䛥䜜䜛㟁ὶ್䛿䚸ᚤᑠ᢬ᢠయ䛸䝁䜲䝹䛾᢬ᢠẚ䛻䜘䛳䛶⮬ືⓗ䛻ศὶ䛧䚸ᚎ䚻䛻ᚤᑠ᢬ᢠయ䜈㟁ὶ䜢㎽ᅇ䛥䛫䜛䛣䛸䛜䛷䛝䜛䚹㻌㻌㻠䠊ఏᑟ෭༷ୗ䛻䛚䛡䜛ಖㆤືస䛾᳨ドヨ㦂⤖ᯝ㻌䜰䝹䝭ఏ⇕ᯈ䜢 㻞 ẁ 㻳㻹 ෭෾ᶵ䛻᥋⥆䛧䚸㻠 ✚ᒙ 㻾㻱㻮㻯㻻䝁䜲䝹䜢ఏᑟ෭༷䛧䛯䚹䜎䛯䚸ึᮇ෭༷ᚋ䚸䝁䜲䝹 ᗘ䜢 㻞㻡㻌㻷   䛻ไᚚ䛧䛯≧ែ䛷 㻞㻞㻜㻌 㻭 䜎䛷ບ☢䛧䛯䚹㏻㟁ᚋ䚸㧗㈇Ⲵ⋡㐠
7LPH PLQ㌿䛧䛯㝿䛾ಖㆤືస䜢᳨ド䛩䜛䛯䜑䚸෭෾ᶵ䜢೵Ṇ䛧䛶䝁䜲㻲㼕㼓㻚㻌㻞㻌㼀㼑㼟㼠㻌㼞㼑㼟㼡㼘㼠㼟㻌㼛㼒㻌㼠㼔㼑㻌㼜㼞㼛㼠㼑㼏㼠㼕㼛㼚㻌㼏㼕㼞㼏㼡㼕㼠㻚㻌䝹 ᗘ䜢ୖ᪼䛥䛫䛯䚹䝁䜲䝹 ᗘ䛸䚸䝁䜲䝹䛻ὶ䜜䜛㟁ὶ್䛾㻌᫬㛫ኚ໬䜢 㻲㼕㼓㻚㻌 㻞 䛻♧䛩䚹䝁䜲䝹䛻ὶ䜜䜛㟁ὶ್䛿䚸䝩䞊䝹ཧ⪃ᩥ⊩㻌⣲Ꮚ䛻䜘䜚 ᐃ䛧䛯୰ᚰ☢ሙ䛛䜙⟬ฟ䛧䛯䚹ึᮇ≧ែ䛛䜙㻝㻚㻌 ᒾ஭㈆᠇䚸ᡞᆏὈ㐀䚸ᐑ㷂ᐶྐ௚䠖➨ 㻥㻞 ᅇ 㻞㻜㻝㻡 ᖺᗘ⛅㻝㻞㻜 ศᚋ䚸㈇Ⲵ⋡䛜⣙ 㻝㻜㻜㻑䛸䛺䜛 㻡㻜㻌 㻷 䛻㐩䛧䛯䛜䚸䝁䜲䝹䛻Ꮨప ᕤᏛ䞉㉸㟁ᑟᏛ఍ㅮ₇ᴫせ㞟㻘㻌㻟㻭㻙㼜㻝㻞㻌㻔㻞㻜㻝㻡㻕㻌ὶ䜜䜛㟁ὶ䛿ῶᑡ䛧䚸⇕ᭀ㉮䛾ᅇ㑊䛜ᐇ㦂ⓗ䛻☜ㄆ䛷䛝䛯䚹㻌

第95回

2017年度秋季低温工学・超電導学会

1A-p06

HTS コイル保護ఏᑟ෭༷ᆺ㧗 ㉸㟁ᑟ䝁䜲䝹䛾ಖㆤᢏ⾡㻔㻟㻕㻌㻙ᑟ㟁ᛶᶞ⬡䜢฼⏝䛧䛯䝁䜲䝹ಖㆤ㻙㻌㻽㼡㼑㼚㼏㼔㻌㼜㼞㼛㼠㼑㼏㼠㼕㼛㼚㻌㼠㼑㼏㼔㼚㼕㼝㼡㼑㻌㼒㼛㼞㻌㼍㻌㼏㼛㼚㼐㼡㼏㼠㼕㼛㼚㻙㼏㼛㼛㼘㼑㼐㻌㻴㼀㻿㻌㼏㼛㼕㼘㻌㻙㻼㼞㼛㼠㼑㼏㼠㼕㼛㼚㻌㼙㼑㼠㼔㼛㼐㻌㼡㼟㼕㼚㼓㻌㼏㼛㼚㼐㼡㼏㼠㼕㼢㼑㻌㼑㼜㼛㼤㼥㻌㼞㼑㼟㼕㼚㻙㻌

Current(A)Voltage(mV)

I/I0,B/B0㻌ᐑ㷂㻌 ᐶྐ䠈ᒾ஭㻌 ㈆᠇䠈Ᏹ㒔㻌 㐩㑻䠈ⲡ㔝㻌 ㈗ྐ䠈ᑠᰗ㻌 ᆂ䠈▼஭㻌 ♸௓䠈㔝ᮧ㻌 ಇ⮬䠄ᮾⰪ䜶䝛䝹䜼䞊䝅䝇䝔䝮䝈䠅㻌㻹㻵㼅㻭㼆㻭㻷㻵㻌㻴㼕㼞㼛㼟㼔㼕䠈㻌 㻵㼃㻭㻵㻌㻿㼍㼐㼍㼚㼛㼞㼕䠈㻌 㼁㼀㻻㻌㼀㼍㼠㼟㼡㼞㼛䠈㻌 㻷㼁㻿㻭㻺㻻㻌㼀㼍㼗㼍㼟㼔㼕䠈㻌 㻌㻷㻻㼅㻭㻺㻭㻳㻵㻌㻷㼑㼕㻌㼕䠈㻵㻿㻴㻵㻵㻌㼅㼡㼟㼡㼗㼑䠈㻌 㻺㻻㻹㼁㻾㻭㻌㻿㼔㼡㼚㼖㼕㻌㻔㼀㼛㼟㼔㼕㼎㼍㻌㻱㼚㼑㼞㼓㼥㻌㻿㼥㼟㼠㼑㼙㼟㻌㻒㻌㻿㼛㼘㼡㼠㼕㼛㼚㼟㻌㻯㼛㼞㼜㼛㼞㼍㼠㼕㼛㼚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼔㼕㼞㼛㼟㼔㼕㻝㻣㻚㼙㼕㼥㼍㼦㼍㼗㼕㻬㼠㼛㼟㼔㼕㼎㼍㻚㼏㼛㻚㼖㼜㻌㻌㻌㻝䠊䛿䛨䜑䛻㻌
㼀㼍㼎㼘㼑㻌㻝㻌㻿㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㻌㼛㼒㻌㼟㼕㼚㼓㼘㼑㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㻌㼕㼙㼜㼞㼑㼓㼚㼍㼠㼑㼐㻌㼣㼕㼠㼔㻌ఏᑟ෭༷ᆺ㧗 ㉸㟁ᑟ䝁䜲䝹䜢ಖㆤ䛩䜛᪉ἲ䛸䛧䛶䚸䝁䜲㼏㼛㼚㼐㼡㼏㼠㼕㼢㼑㻌㼑㼜㼛㼤㼥㻌㼞㼑㼟㼕㼚㻌䝹䛻␗ᖖ䛜⏕䛨䛯ሙྜ䛻䚸ᑟ㟁ᛶᶞ⬡䜢௓䛧䛶䚸䝍䞊䞁㛫䛻㼀㼍㼜㼑㻌㼣㼕㼐㼠㼔㻌㻔㼙㼙㻕㻌㻠㻌㟁ὶ䜢㎽ᅇ䛥䛫䜛᪉ἲ䜢㛤Ⓨ䛧䛶䛔䜛䚹䝍䞊䞁㛫䜢▷⤡䛥䛫㼀㼍㼜㼑㻌㼠㼔㼕㼏㼗㼚㼑㼟㼟㻌㻔㼙㼙㻕㻌㻜㻚㻝㻣㻌䛯ሙྜ䛻䛿䚸ບ☢᫬䛻▷⤡⟠ᡤ䛻㟁ὶ䛜㎽ᅇ䛩䜛䛣䛸䛻䜘䜛㼀㼍㼜㼑㻌㼘㼑㼚㼓㼠㼔㻌㻔㼙㻕㻌㻞㻜㻌ບ☢㐜䜜䛜ㄢ㢟䛸䛺䜛䛜䚸ᑟ㟁ᛶᶞ⬡䛾᢬ᢠ⋡䜢䝁䞁䝖䝻䞊㻵㼚㼚㼑㼞㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌㻔㼙㼙㻕㻌㻝㻜㻜㻌䝹䛩䜛䛣䛸䛷ບ☢㐜䜜䛾ᙳ㡪䜢ῶ䜙䛩䛣䛸䛜ྍ⬟䛸䛺䜛䚹ᮏㅮ㻻㼡㼠㼑㼞㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌㻔㼙㼙㻕㻌㻝㻞㻤㻌
₇䛷䛿䚸ᑟ㟁ᛶᶞ⬡䜢౑⏝䛧䛶ヨస䛧䛯ྵᾐ䝁䜲䝹䛾㏻㟁ヨ㻺㼡㼙㼎㼑㼞㻌㼛㼒㻌㼠㼡㼞㼚㼟㻛㼜㼍㼚㼏㼍㼗㼑㻌㻢㻜㻌㦂⤖ᯝ➼䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌㻌㻌㻞䠊䝁䜲䝹ㅖඖ㻌ᑟ㟁ᛶᶞ⬡䜢౑⏝䛧䛶ヨస䛧䛯ྵᾐ䝁䜲䝹䛾ㅖඖ䛚䜘䜃እほ䜢 㼀㼍㼎㼘㼑㻌 㻝 䛚䜘䜃 㻲㼕㼓㻚㻌 㻝 䛻♧䛩䚹ᶞ⬡ྵᾐ䛧䛯䝁䜲䝹䛿෭༷᫬䛾⇕ᛂຊ䛻䜘䜚㉸㟁ᑟ≉ᛶ䛜ຎ໬䛧䛶䛧䜎䛖ၥ㢟䛜䛒䜛䛯䜑䚸㞳ᙧฎ⌮䛧䛯䝫䝸䜲䝭䝗䝔䞊䝥䛸 㻾㻱㻮㻯㻻 ㉸㟁ᑟ⥺ᮦ䜢ඹᕳ䛝䛧䚸ᑟ㟁ᛶᶞ⬡䛷ᶞ⬡ྵᾐ䛧䛯䚹௒ᅇ౑⏝䛧䛯ᑟ㟁㻌ᛶᶞ⬡䛿䚸㔠ᒓ䛸䜶䝫䜻䝅ᶞ⬡䜢ΰྜ䛧䛯䜒䛾䛷䛒䜚䚸య✚᢬㻲㼕㼓㻚㻌㻝㻌㻼㼔㼛㼠㼛㼓㼞㼍㼜㼔㻌㼛㼒㻌㼟㼕㼚㼓㼘㼑㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㻌㼕㼙㼜㼞㼑㼓㼚㼍㼠㼑㼐㻌㼣㼕㼠㼔㻌ᢠ⋡䛿 㻟㽢㻝㻜㻙㻡䡚㻠㽢㻝㻜㻙㻡㻌:㼙 䛷䛒䜛䚹⥺ᮦ䛻䝣䝷䝑䜽䝇䝣䝻㼏㼛㼚㼐㼡㼏㼠㼕㼢㼑㻌㼑㼜㼛㼤㼥㻌㼞㼑㼟㼕㼚㻌䞊᢬ᢠ䛜Ⓨ⏕䛧䛯ሙྜ䛻䛿䚸ᑟ㟁ᛶᶞ⬡䜢௓䛧䛶㟁ὶ䛜㎽㻌ᅇ䛧䚸䝁䜲䝹䜢ಖㆤ䛩䜛䛣䛸䛜䛷䛝䜛䚹㻌1.2
㻌1
㻟䠊㏻㟁ヨ㦂⤖ᯝ㻌᭱ึ䛻䚸ᑟ㟁ᛶᶞ⬡䛷ྵᾐ䛧䛯䝅䞁䜾䝹䝟䞁䜿䞊䜻䝁䜲䝹
0.8
䜢ᾮయ❅⣲䛷෭༷䛧䚸㐽᩿ヨ㦂䜢ᐇ᪋䛧䛯䚹䝁䜲䝹୰ᚰ䛻タ⨨䛧䛯䝩䞊䝹⣲Ꮚ䛷☢ሙ䜢 ᐃ䛧䚸㐽᩿᫬䛾☢ሙ䛾㐜䜜䛛䜙0.6
I/I0ᚄ᪉ྥ䛾᢬ᢠ䜢⟬ฟ䛧䛯䚹ヨ㦂䛿 㻝㻜㻌㻭 ㏻㟁᫬䛻㐽᩿䛧䛯㝿
0.4
B/B0䛾㟁ὶ䛸☢ሙ䜢 ᐃ䛧䚸☢ሙ䛾ῶ⾶᫬ᐃᩘ䛛䜙ᚄ᪉ྥ䛾᢬ᢠ䜢⟬ฟ䛧䛶䛔䜛䚹ヨ㦂⤖ᯝ䜢 㻲㼕㼓㻚㻌 㻞 䛻♧䛩䚹᫬ᐃᩘ䛿䚸
0.2
㻜㻚㻞㻠㻌㼟 䛷䛒䜚䚸ᚄ᪉ྥ䛾᢬ᢠ䛻᥮⟬䛩䜛䛸 㻞㻚㻥㻌㼙:䛸䛺䜚䚸ᶞ⬡0䛾య✚᢬ᢠ⋡䛛䜙ᚓ䜙䜜䜛್䛸䜋䜌ྠ➼䛷䛒䛳䛯䚹
0.0
0.2
0.4
0.6
0.8
1.0
ḟ䛻䚸ᾮయ❅⣲୰䛷㏻㟁ヨ㦂䜢ᐇ᪋䛧䛯䚹㟁ὶ䚸㟁ᅽ䛾
Time(s)᫬㛫ኚ໬䜢 㻲㼕㼓㻚㻌 㻟 䛻♧䛩䚹㻵T䛿䚸䝁䜲䝹࿘᪉ྥ䛾㟁ὶ䛷䛒䜚䚸୰ᚰ☢ሙ䛾 ᐃ⤖ᯝ䛛䜙☢ሙಀᩘ䜢ඖ䛻ィ⟬䛧䛯್䛷䛒䜛䚹㻲㼕㼓㻚㻌㻞㻌㻿㼡㼐㼐㼑㼚㻌㼐㼕㼟㼏㼔㼍㼞㼓㼕㼚㼓㻌㼠㼑㼟㼠㻌㼞㼑㼟㼡㼘㼠㻌㼛㼒㻌㼟㼕㼚㼓㼘㼑㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㻌䜎䛯䚸඲㟁ὶ䛛䜙 㻵T䜢ᘬ䛟䛣䛸䛷䝁䜲䝹ᚄ᪉ྥ㟁ὶ 㻵㼞 䜢ィ⟬䛧㼕㼙㼜㼞㼑㼓㼚㼍㼠㼑㼐㻌㼣㼕㼠㼔㻌㼏㼛㼚㼐㼡㼏㼠㼕㼢㼑㻌㼑㼜㼛㼤㼥㻌㼞㼑㼟㼕㼚㻌
䛯䚹㏻㟁㛤ጞᚋ 㻞㻡㻜㻜㻌㼟 䛷ᚄ᪉ྥ䛻㟁ὶ䛜㎽ᅇ䛧䚸䛭䛾ᚋ䚸㏻㻌㟁䜢⥆䛡䛯䛜䚸㻵T䛿ῶᑡ䛧䚸⇕ᭀ㉮䛩䜛䛣䛸䛺䛟Ᏻᐃ䛻ᾘ☢䛧
120
250
Ir+IT
䛯䚹㻌
㻌
100
200
IT
㻠䠊䜎䛸䜑㻌
Voltage80ᑟ㟁ᛶᶞ⬡䛷 㻾㻱㻮㻯㻻 䝁䜲䝹䜢ྵᾐ䛩䜛䛣䛸䛷䚸䝁䜲䝹ෆ
150
Ir
㒊䛻䝣䝷䝑䜽䝇䝣䝻䞊᢬ᢠ䛜Ⓨ⏕䛧䛯ሙྜ䛻䚸ᑟ㟁ᛶᶞ⬡䜢60௓䛧䛶ᚄ᪉ྥ䛻㟁ὶ䜢㎽ᅇ䛧䚸ಖㆤ䛩䜛᪉ἲ䜢㛤Ⓨ䛧䛶䛔䜛䚹100
40௒ᅇ䚸ෆᚄ 㻝㻜㻜㻌㼙㼙䚸እᚄ 㻝㻞㻤㻌㼙㼙䚸㻢㻜 䝍䞊䞁䛾䝅䞁䜾䝹䝟䞁50䜿䞊䜻䝁䜲䝹䜢య✚᢬ᢠ⋡ 㻟㽢㻝㻜㻙㻡䡚㻠㽢㻝㻜㻙㻡㻌:㼙 䛾ᶞ⬡䛷20ྵᾐ䛧䛯䝁䜲䝹䜢ヨస䛧䚸ᾮయ❅⣲୰䛻䛶㏻㟁ヨ㦂䜢ᐇ᪋䛧00
䛯䚹㈇Ⲵ⋡ 㻝㻜㻜㻑䜢㉸䛘䜛㟁ὶ䜢㏻㟁䛧䛶䜒䚸㟁ὶ䛜ᚄ᪉ྥ䛻
0
1000
2000
3000
4000
㎽ᅇ䛧䚸⇕ᭀ㉮䛩䜛䛣䛸䛺䛟Ᏻᐃ䛻㏻㟁䛷䛝䜛䛣䛸䜢☜ㄆ䛧䛯䚹
Time(s)௒ᚋ䚸ఏᑟ෭༷୰䛻䛶㏻㟁ヨ㦂䜢ᐇ᪋䛧䚸 ᗘ䛚䜘䜃㟁ὶᐦᗘ䜢䝟䝷䝯䞊䝍䛸䛧䛯ヨ㦂䜢ᐇ᪋䛧䛶䛔䛟䚹㻌㻲㼕㼓㻚㻌㻟㻌㻻㼢㼑㼞㼏㼡㼞㼞㼑㼚㼠㻌㼠㼑㼟㼠㻌㼞㼑㼟㼡㼘㼠㻌㼛㼒㻌㼟㼕㼚㼓㼘㼑㻌㼜㼍㼚㼏㼍㼗㼑㻌㼏㼛㼕㼘㻌㻌㼕㼙㼜㼞㼑㼓㼚㼍㼠㼑㼐㻌㼣㼕㼠㼔㻌㼏㼛㼚㼐㼡㼏㼠㼕㼢㼑㻌㼑㼜㼛㼤㼥㻌㼞㼑㼟㼕㼚㻌― 16 ―

第95回



2017年度秋季低温工学・超電導学会

1A-p07

HTS マグネット㻹㻾㻵 ⏝ 㻝㻛㻞 䝃䜲䝈䜰䜽䝔䜱䝤䝅䞊䝹䝗ᆺ 㻡㼀 㧗 ㉸㟁ᑟ䝁䜲䝹䛾ᇶᮏタィ㻌㼀㼔㼑㻌㼎㼍㼟㼕㼏㻌㼐㼑㼟㼕㼓㼚㻌㼛㼒㻌㼔㼕㼓㼔㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼏㼛㼕㼘㻌㼣㼕㼠㼔㻌㼍㼏㼠㼕㼢㼑㻌㼟㼔㼕㼑㼘㼐㼕㼚㼓㻌㼏㼛㼕㼘㻌㼒㼛㼞㻌㼍㻌㼔㼍㼘㼒㻙㼟㼕㼦㼑㻌㻡㼀㻌㻹㻾㻵㻌୕ᾆ㻌 ⱥ᫂䠈ᯇ⏣㻌 ဴஓ䠈኱ᒇ㻌 ṇ⩏䠈ᶓᒣ㻌 ᙲ୍䠈኱✐㻌 ᫭⿱䠄୕⳻㟁ᶵ䠅㻌㻹㻵㼁㻾㻭㻌㻴㼕㼐㼑㼍㼗㼕䠈㻌 㻹㻭㼀㻿㼁㻰㻭㻌㼀㼑㼠㼟㼡㼥㼍䠈㻌 㻻㼅㻭㻌㻹㼍㼟㼍㼥㼛㼟㼔㼕䠈㻌 㼅㻻㻷㻻㼅㻭㻹㻭㻌㻿㼔㼛㼕㼏㼔㼕㻘㻌㻰㻭㻵㻷㻻㻷㼁㻌㻭㼗㼕㼔㼕㼞㼛㻌㻔㻹㼕㼠㼟㼡㼎㼕㼟㼔㼕㻌㻱㼘㼑㼏㼠㼞㼕㼏㻌㻯㼛㼞㼜㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㻹㼕㼡㼞㼍㻚㻴㼕㼐㼑㼍㼗㼕㻬㼐㼤㻚㻹㼕㼠㼟㼡㼎㼕㼟㼔㼕㻱㼘㼑㼏㼠㼞㼕㼏㻚㼏㼛㻚㼖㼜㻌㻌ㅰ㎡㻌㻝䠊䛿䛨䜑䛻㻌
ᮏ◊✲ࡣ㸪ᅜ❧◊✲㛤Ⓨἲே᪂࢚ࢿࣝࢠ࣮࣭⏘ᴗᢏ⾡⥲ᖹᡂ 㻞㻤 ᖺᗘ䜘䜚 㻺㻱㻰㻻 䝥䝻䝆䜵䜽䝖䛸䛧䛶䠈ᾮయ䝦䝸䜴䝮䝺䝇ྜ㛤Ⓨᶵᵓ㸦1('2㸧ࡢࠕ㧗 ㉸㟁ᑟᐇ⏝໬ಁ㐍ᢏ⾡㛤Ⓨࠖ䛛䛴ᑠᆺ䞉㍍㔞䛾་⒪⏝ 㻹㻾㻵 ㉸㟁ᑟ䝬䜾䝛䝑䝖䜢ᐇ⏝໬䛩䜛ࡢ࠺ࡕࠕ㧗 ㉸㟁ᑟ㧗Ᏻᐃ☢ሙ࣐ࢢࢿࢵࢺࢩࢫࢸ࣒㛤Ⓨࠖ䛯䜑䛾◊✲㛤Ⓨ䜢ᐇ᪋䛧䛶䛔䜛㼇㻝㼉䚹⌧ᅾ䠈ᾮయ䝦䝸䜴䝮䝺䝇඲࡟ࡼࡾጤク࣭ᨭ᥼ࢆཷࡅᐇ᪋ࡋࡓࡶࡢ࡛࠶ࡿࠋ
㌟⏝ 㻹㻾㻵 ᐇ⌧䛻ྥ䛡䛶䠈㻝㻛㻞 䝃䜲䝈䜰䜽䝔䜱䝤䝅䞊䝹䝗ᆺ㻟㼀㻙㻹㻾㻵 ㉸㟁ᑟ䝬䜾䝛䝑䝖䜢〇స୰䛷䛒䜛㼇㻞㼉䚹඲㌟⏝ 㻟㼀 䝬䜾ཧ⪃ᩥ⊩㻌䝛䝑䝖䛸ẚ㍑䛧䠈㻝㻛㻞 䝃䜲䝈 㻟㼀 䝬䜾䝛䝑䝖䛿䠈㉸㟁ᑟ⥺䛻༳ຍ䛥
 6 <RNR\DPD HW DO $EVWUDFWV RI &66- &RQIHUHQFH 9RO
䜜䜛☢ሙ䜔䝁䜲䝹䛻䛿䛯䜙䛟㟁☢ຊ䛜ᑠ䛥䛔䚹䜎䛯䠈඲㌟⏝ 㻟㼀  S
02\DHWDO$EVWUDFWVRI&66-&RQIHUHQFH9RO  䝬䜾䝛䝑䝖䛾ᑠᆺ䞉㍍㔞໬䛻䛿䠈⌧ᅾ〇స୰䛾䝬䜾䝛䝑䝖䜘䜚䜒S
㧗㟁ὶᐦᗘ໬䛜ᚲせ䛷䛒䜛䚹䛭䛣䛷䠈ᑠᆺ䞉㍍㔞䛾඲㌟⏝ 㻟㻌㼀
 7 0DWVXGD HW DO $EVWUDFWV RI &66- &RQIHUHQFH 9RO
䝬䜾䝛䝑䝖䜢᳨ド䛩䜛䛯䜑䠈䝥䝻䝆䜵䜽䝖ᚋ༙䛻䛶 㻝㻛㻞 䝃䜲䝈 㻡㼀  S䝬䜾䝛䝑䝖䜢ヨసணᐃ䛷䛒䜛䚹௒ᅇ䠈㻝㻛㻞 䝃䜲䝈䜰䜽䝔䜱䝤䝅䞊㻌䝹䝗ᆺ 㻡㼀 㧗 ㉸㟁ᑟ䝁䜲䝹䛾☢Ẽタィ䜢ᐇ᪋䛧䛯䛾䛷䠈䛭䛾⤖ᯝ䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌㻌㻞䠊䝁䜲䝹タィ㻌㻝㻛㻞 䝃䜲䝈䜰䜽䝔䜱䝤䝅䞊䝹䝗ᆺ 㻡㼀 㧗 ㉸㟁ᑟ䝬䜾䝛䝑䝖䜢᝿ᐃ䛧䠈䝁䜲䝹᭱㐺㓄⨨䜢ィ⟬䛧䛯䚹᭱㐺໬ᡭἲ䛿 㻿㼕㼙㼡㼘㼍㼠㼑㼐㻌㻭㼚㼚㼑㼍㼘㼕㼚㼓 ἲ䛸䛧䠈᭱㐺໬䛾┠ⓗ㛵ᩘ䛿☢ሙᆒ୍ᗘ䛸䛧䛯㼇㻟㼉䚹☢ሙᆒ୍ᗘ䛾ᐃ⩏ᘧ䜢௨ୗ䛻♧䛩䚹㻌㻌ͳ‫׬‬ሺ‫ܤ‬ሺ‫ݎ‬ǡ ߠǡ ‫ݖ‬ሻ െ ‫ܤ‬ሺͲǡͲǡͲሻሻଶ ݀‫ݒ‬ඨ㻌‫ܤ‬ሺͲǡͲǡͲሻ
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㻾㻱㻮㻯㻻 ⥺ᮦ䛿ᖜᗈ䛷䛒䜛䛣䛸䛛䜙䠈䝁䜲䝹䛿䝟䞁䜿䞊䜻ᙧ≧䛸䛺䜛䚹䛣䛾ᙧ≧䛻䜘䜚䠈㍈㻔㼆㻕᪉ྥ䜈䛾䝁䜲䝹఩⨨䛿㐃⥆ⓗ䛻ኚ໬䛥䛫䛻䛟䛔䛯䜑䠈᭱㐺໬䝟䝷䝯䞊䝍䛿䝁䜲䝹㧗䛥䛸䛧䛯䚹䝁䜲䝹䛿䠈䜰䜽䝔䜱䝤䝅䞊䝹䝗䝁䜲䝹䜢ྵ䜑 㻤 䝁䜲䝹⩌㻔䝎䝤䝹䝟䞁䜿䞊䜻䝁䜲䝹ᩘ䠖㻝㻝㻢 ಶ㻕䛷ᵓᡂ䛧䠈୺䝁䜲䝹⩌䛾䝁䜲䝹㧗䛥䜢ኚ໬䛥䛫䛶䠈ᡤᐃ䛾☢ሙᆒ୍ᗘ௨ୗ䛻䛺䜛䜘䛖☢ሙゎᯒ䛧䛯䚹䝅䞊䝹䝗䝁䜲䝹䛿䠈୰ᚰ☢ሙ䛾ᆒ୍ᗘ䛻኱䛝䛟ᙳ㡪䛧䛺䛔䛣䛸䛛䜙䠈㻟㻜 ಶ䛩䜉䛶ྠ䛨ᙧ≧䛸䛧䛯䚹䝁䜲䝹タィ䛾๓ᥦ᮲௳䛿௨ୗ䛾㏻䜚䚹㻌
䞉䝯䜲䞁䝁䜲䝹ෆ༙ᚄ䠖㻞㻤㻜㻌㼙㼙㻌䞉䝅䞊䝹䝗䝁䜲䝹እ༙ᚄ䠖㻢㻜㻜㻌㼙㼙㻌䞉୰ᚰ☢ሙ䠖㻡㻚㻜㻌㼀㻌䞉☢ሙᆒ୍ᗘ䠖㻞㻌㼜㼜㼙 ௨ୗ㻔I㻌㻞㻡㻜㻌㼙㼙㻰㻿㼂㻕㻌䞉₃䜜☢ሙ㡿ᇦ䠖㻠㻌㼙㻌㼤㻌㻞㻚㻡㻌㼙 ௨ୗ㻌 㻔㻡 䜺䜴䝇䝷䜲䞁㻕㻌䝁䜲䝹㓄⨨䛾ィ⟬⤖ᯝ䜢 㻲㼕㼓㻚㻝 䛻♧䛩䚹☢ሙᆒ୍ᗘ㻔I㻞㻡㻜㻌㼙㼙㻰㻿㼂㻕䛿 㻝㻚㻣㻌㼜㼜㼙䠈䝁䜲䝹䛾㟁ὶᐦᗘ䛿 㻞㻜㻜㻌㻭㻛㼙㼙㻞 䛷䛒䜛䚹㻡㻌㼀 䝁䜲䝹䛾ㅖඖ䜢 㼀㼍㼎㼘㼑㻌㻝䠈఩⨨ㄗᕪಀᩘ䜢 㼀㼍㼎㼘㼑㻌㻞 䛻♧䛩䚹䜎䛯䠈㻡 䜺䜴䝇䝷䜲䞁䜢 㻲㼕㼓㻚㻞 䛻♧䛩䚹㻡 䜺䜴䝇䝷䜲䞁䛿┠ᶆ㡿ᇦ௨ୗ䛷䛒䜛䚹⥺ᮦ䛾᭱኱⤒㦂☢ሙ䛿䠈㻢㻚㻣㻌 㼀㻔㼏 ㍈䛸䛾ゅᗘ㻤㻢㼻㻕䛷䛒䜚䠈㻞㻜㻌 㻷 䛻䛚䛡䜛㟁ὶ㈇Ⲵ⋡㻔⮫⏺㟁ὶ䛻ᑐ䛩䜛㏻㟁㟁ὶ䛾๭ྜ㻕䛾┠Ᏻ䜢 㻢㻜㻑䛸䛧䛶䛔䜛䚹㻌㻌㻟䠊䜎䛸䜑㻌㻝㻛㻞 䝃䜲䝈䜰䜽䝔䜱䝤䝅䞊䝹䝗ᆺ 㻡㼀 㧗 ㉸㟁ᑟ䝬䜾䝛䝑䝖䛾䝁䜲䝹㓄⨨䜢タィ䛧䛯䚹☢ሙᆒ୍ᗘ㻔I㻞㻡㻜㻌 㼙㼙㻰㻿㼂㻕䛿䠈㻝㻚㻣㻌㼜㼜㼙 䜢ᚓ䜙䜜䛯䚹ᖹᡂ 㻟㻜 ᖺᗘ䛻ᇶᮏタィ䜢᏶஢䛧䠈ヨస䜢⾜䛖ணᐃ䛷䛒䜛䚹㻌
㻌㻌㻌㻌
)LJFURVVVHFWLRQDOYLHZRIWKHKDOIVL]H7FRLO
7DEOH6SHFLILFDWLRQVRIWKHKDOIVL]H7FRLO䝁䜲䝹ෆ༙ᚄ㻌䝁䜲䝹᭱኱እ༙ᚄ㻌䝁䜲䝹㍈㛗㻌
䝁䜲䝹㟁ὶᐦᗘ㻌୰ᚰ☢ሙ㻌 㻛㻌 ᭱኱⤒㦂☢ሙ㻌☢ሙᆒ୍ᗘ㻔
I㻞㻡㻜㻌㼙㼙㻰㻿㼂㻕㻌㻞㻤㻜㻌 㼙㼙㻌
㻢㻜㻜㻌 㼙㼙㻌
㻝㻜㻞㻜㻌 㼙㼙㻌㻞㻜㻜㻌 㻭㻛㼙㼙㻞㻌㻡㻚㻜㻌 㼀㻌 㻛㻌 㻢㻚㻣㻌 㼀㻌㻝㻚㻣㻌 㼜㼜㼙㻌

7DEOH,QKRPRJHQHRXVPDJQHWLFILHOGRYHUPP'69
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― 17 ―

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㼆㻤㻌

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㻙㻝㻚㻣㻞㻌

㻟㻚㻝㻜㻌㻙㻞㻚㻢㻟㻌

㻙㻝㻡㻚㻠㻝㻌

㻙㻝㻚㻞㻞㻌

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)LJ/HDNDJHPDJQHWLFILHOGRIWKHKDOIVL]H7FRLO

第95回

2017年度秋季低温工学・超電導学会

1A-p08

HTS マグネット㻟㻌㼀㻌㻴㼀㻿㻙㻹㻾㻵 䝁䜲䝹䛾タィ䝥䝻䜾䝷䝮㛤Ⓨ䛸㠀⥺ᙧ㟁ὶ㍺㏦≉ᛶ㻌䜢㐺⏝䛧䛯≉ᛶゎᯒ㻌㻰㼑㼟㼕㼓㼚㻌㻼㼞㼛㼓㼞㼍㼙㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㻟㻌㼀㻌㻴㼀㻿㻙㻹㻾㻵㻌㻯㼛㼕㼘㻌㼍㼚㼐㻌㻵㼠㼟㻌㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㻌㻭㼚㼍㼘㼥㼟㼕㼟㻌 㻌㼁㼟㼕㼚㼓㻌㻺㼛㼚㼘㼕㼚㼑㼍㼞㻌㻯㼡㼞㼞㼑㼚㼠㻌㼀㼞㼍㼚㼟㼜㼛㼞㼠㻌㻼㼞㼛㼜㼑㼞㼠㼥㻌㼕㼚㻌㻴㼀㻿㻌㼀㼍㼜㼑㻌㻌၈ᓥ㻌 ᬛ἞䠈୰ᮧ㻌 Ṋᜏ㻌 㻔ி኱㻕䠗㻌 ᯇ⏣㻌 ဴஓ䠈ᶓᒣ㻌 ᙲ୍㻌 䠄୕⳻㟁ᶵ䠅㻌㻷㻭㻾㻭㻿㻴㻵㻹㻭㻌㼀㼛㼙㼛㼔㼍㼞㼡㻘㻌㻺㻭㻷㻭㻹㼁㻾㻭㻌㼀㼍㼗㼑㼠㼟㼡㼚㼑㻌㻔㻷㼥㼛㼠㼛㻌㼁㼚㼕㼢䚹㻕㻧㻌㻹㻭㼀㻿㼁㻰㻭㻌㼀㼑㼠㼟㼡㼥㼍㻘㻌 㻌㼅㻻㻷㻻㼅㻭㻹㻭㻌㻿㼔㼛㼕㼏㼔㼕㻌㻔㻹㼕㼠㼟㼡㼎㼕㼟㼔㼕㻌㻱㼘㼑㼏㼠㼞㼕㼏㻌㻯㼛㼞㼜㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼚㼍㼗㼍㼙㼡㼞㼍㻚㼠㼍㼗㼑㼠㼟㼡㼚㼑㻚㻞㼍㻬㼗㼥㼛㼠㼛㻙㼡㻚㼍㼏㻚㼖㼜㻌㻌ཧ⪃ᩥ⊩㻌䠍䠊䛿䛨䜑䛻㻌㻝㻚 㻿㻚㻌㼅㼛㼗㼛㼥㼍㼙㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼢㼛㼘㻚㻌ᡃ䚻䛿䠈㻹㻾㻵 ⏝㧗 ㉸㟁ᑟ㧗Ᏻᐃ☢ሙ䝬䜾䝛䝑䝖䝅䝇䝔䝮㻥㻠㻘㻌㻞㻭㻙㼍㻜㻝㻌㻔㻞㻜㻝㻣㻕㻌 㻌䛾◊✲㛤Ⓨ㼇㻝㼉䛾୍⎔䛸䛧䛶䠈඲㌟ 㻟㼀㻙㻹㻾㻵 ⏝㧗 ㉸㟁ᑟ䝁䜲㻞㻚 㼀㻚㻌㻺㼍㼗㼍㼙㼡㼞㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼢㼛㼘㻚㻌䝹䛾᭱㐺໬タィἲ䛻㛵䛩䜛◊✲㛤Ⓨ䜢ᐇ᪋䛧䛶䛔䜛䚹≉䛻䠈㻥㻞㻘㻌㻝㻭㻙㼜㻜㻡㻌㻔㻞㻜㻝㻡㻕㻌෭෾ᶵຠ⋡䜒ྵ䜑䛯䝅䝇䝔䝮ຠ⋡䛾᭱㐺໬䜢┠ᶆ䛸䛧䛶䠈㐠㻟㻚 㼀㻚㻌 㻹㼍㼠㼟㼡㼐㼍㻘㻌 㼑㼠㻌㼍㼘㻚㻦㻌 㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌 㼛㼒㻌 㻯㻿㻿㻶㻌 㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌 㼢㼛㼘㻚㻌㌿ ᗘ䜢ኚ໬䛥䛫䛯タィ䝁䞊䝗䛾㛤Ⓨ䜢⾜䛳䛶䛔䜛䚹ᮏㅮ₇㻥㻞㻘㻌㻝㻭㻙㼜㻜㻞㻌㻔㻞㻜㻝㻡㻕㻌 㻌䛷䛿䠈ୖグ᳨ウ䛾୍⎔䛸䛧䛶䠈㑇ఏⓗ䜰䝹䝂䝸䝈䝮䜢㐺⏝䛧䛶㻌┠ᶆ䛾☢ሙᆒ୍ᗘ䜢ᐇ⌧䛩䜛䝁䜲䝹タィ䝁䞊䝗䜢㛤Ⓨ䛧䛯䚹䛭䛧䛶䠈タィ䛧䛯䝁䜲䝹䛾㠀⥺ᙧ┤ὶ㏻㟁≉ᛶ䜢ゎᯒⓗ䛻ホ౯䛧䛯䛾䛷ሗ࿌䛩䜛䚹㻌䠎䠊ゎᯒ᪉ἲ㻌䜎䛪䠈㻳㼐⣔㧗 ㉸㟁ᑟ⥺ᮦ䛾౑⏝䜢๓ᥦ䛸䛧䛶䠈ᙜヱ⥺㟁ὶ㏆ఝ䛧䛯䝁䜲䝹≉ᛶゎᯒ䝁䞊䝗䜢సᡂ䛧䛯㻔㻳㼐⣔⥺ᮦ䛾ᗄఱᏛⓗ䛺᩿㠃ᙧ≧䛿⪃៖䛧䛶䛔䜛㻕䚹ḟ䛻䠈㐠㌿㟁ὶ㻞㻜㻜㻌㻭䠈䝁䜲䝹ෆᚄ㻝㻜㻜㻜㻌 㼙㼙䠈䛚䜘䜃䝁䜲䝹㍈᪉ྥ䛾䝁䜲䝹ẁᩘ䜢㻝㻞㻜䛸䛧䠈ྛ䚻䛾ẁ䛻䛚䛡䜛ᕳᩘ䜢ኚ䛘䜛䛣䛸䛻䜘䜚䠈ᆒ୍⌫㻡㻜㻜㻌㼙㼙䛾✵㛫䛻䛚䛡䜛☢ሙᆒ୍ᗘ᭱ᑠ໬䛾᭱㐺໬タィ䝁䞊䝗㻔㑇ఏⓗ䜰䝹䝂䝸䝈䝮䜢㐺⏝㻕䜢㛤Ⓨ䛧䛯䚹䜎䛯䠈᭱㐺໬䛥䜜䛯㻌⥺㟁ὶ䝰䝕䝹䜢⏝䛔䛶㻞ḟඖ㟁☢ሙゎᯒ䜢ᐇ᪋䛧䠈ᐇ㝿䛻ᡤ㻲㼕㼓㻚㻌㻝㻌㼀㼞㼕㼍㼘㻌㼐㼑㼟㼕㼓㼚㻌㼞㼑㼟㼡㼘㼠㻌㼛㼒㻌㼍㻌㻟㼀㻌㼣㼔㼛㼘㼑㻙㼎㼛㼐㼥㻌㻹㻾㻵㻌㼏㼛㼕㼘㻌ᮇ䛾☢ሙ䛺䜙䜃䛻☢ሙᆒ୍ᗘ䛜ᚓ䜙䜜䛶䛔䜛䛣䛸䜢☜ㄆ䛧䛯䚹䛥䜙䛻䠈ୖグタィ䛧䛯䝁䜲䝹䛾㏻㟁᫬☢ሙ䝧䜽䝖䝹䜢ィ⟬䛧䠈ᙜヱ䝧䜽䝖䝹䛸㟁ὶ್䛛䜙ồ䜑䜙䜜䜛ᒁᡤ㟁ᅽ䜢ຍ⟬䛩䜛䛣䛸䛻䜘䛳䛶䠈䝁䜲䝹඲య䛾䛾㠀⥺ᙧ┤ὶ㏻㟁≉ᛶ䛾 ᗘ౫Ꮡᛶ䜢ホ౯䛧䛯㼇㻞㼉䚹㻌䠏䠊ゎᯒ⤖ᯝ㻌㻲㼕㼓㻚㻌 㻝䛻䛿䠈඲䛶䛾䝁䜲䝹ẁ䛾ᕳᩘ䜢䝷䞁䝎䝮䛻ኚ໬䛥䛫䛯ሙྜ䛾䝁䜲䝹タィ⤖ᯝ䛾୍౛䜢♧䛩㻔ᑐ⛠ᛶ䛛䜙䠈㻝㻛㻠䛾㡿ᇦ䛾䜏䜢♧䛧䛶䛔䜛㻕䚹ྠᅗ䛻♧䛩䜘䛖䛻䠈䝁䜲䝹୰ᚰ㒊䛾ᆒ୍⌫✵㛫䛾☢ሙ䛿䠈୺䛸䛧䛶୧➃䛾䝁䜲䝹㻔୺䝁䜲䝹㻕䛸୰ኸ௜㏆䛾䝁䜲䝹㻔⿵ṇ䝁䜲䝹㻕䛻䜘䛳䛶స䜙䜜䜛䛣䛸䛜ศ䛛䛳䛯㼇㻟㼉䚹䛭䛣䛷䠈ゎᯒ᫬㛫▷⦰䛾䛯䜑䠈䝁䜲䝹୧➃䛾୺䝁䜲䝹ᙧ≧䜢ᅛᐃᏊ䛧䠈୰ኸ㒊䝁䜲䝹䛾ᕳᩘ䜢ኚ໬䛥䛫䛶タィ䛧䛯⤖ᯝ䜢㻲㼕㼓㻚㻌㻞㻌㻌㻌䛻♧䛩䚹ྠᅗ䛻䛚䛡䜛䝁䜲䝹䛾☢ሙᆒ୍ᗘ䛿䠈⌫య✚䛾ᖹᆒ㻲㼕㼓㻚㻌 㻞㻌 㻭㼚㻌 㼍㼚㼍㼘㼥㼟㼕㼟㻌 㼞㼑㼟㼡㼘㼠㻌 㼛㼒㻌 㼙㼍㼓㼚㼑㼠㼕㼏㻌 㼒㼕㼑㼘㼐㻌 㼕㼚㻌 㼍㻌್䛷㻝㻞㻌 㼜㼜㼙䛷䛒䛳䛯䚹⌧ᅾ䠈䛥䜙䛺䜛ᆒ୍ᗘ䛾ᨵၿ䜢᳨ウ䛧䛶䛔䜛䚹䜎䛯䠈௒ᚋ䛿䛥䜙䛻㧗 ㉸㟁ᑟ⥺ᮦ䛾㏻㟁≉ᛶ䜢⪃㼔㼛㼙㼛㼓㼑㼚㼑㼛㼡㼟㻌㼎㼍㼘㼘㻌㼟㼜㼍㼏㼑㻌㻔㻡㻜㻜㻌㼙㼙㻕㻌㼛㼒㻌㼣㼔㼛㼘㼑㻙㼎㼛㼐㼥㻌㻟㼀㻌㼏㼛㼕㼘㻌㻌៖䛧䛯 ᗘ≉ᛶ䜔䠈䛒䜛䛔䛿㐽ⶸ㟁ὶ䛾ᙳ㡪䜢⪃៖䛧䛯タィ䛻䛴䛔䛶䜒᳨ウணᐃ䛷䛒䜛䚹㻌㻲㼕㼓㻚㻌㻟䛻䛿䠈㻲㼕㼓㻚㻌㻞䛷ᚓ䜙䜜䛯䝁䜲䝹䛻䛴䛔䛶䠈䝁䜲䝹ྛ㒊䛾ᒁᡤ☢ሙ䝧䜽䝖䝹䛛䜙ᒁᡤ㟁ᅽ䜢ホ౯䛧䠈䛭䜜䜢䝁䜲䝹඲య䛻ர䛳䛶ຍ⟬䛩䜛䛣䛸䛻䜘䛳䛶ᚓ䜙䜜䛯┤ὶ㟁ᅽ䠉㟁ὶ≉ᛶ䜢♧䛩㻔Ⓨ⇕㻝㻜㻜㻌 㼃䛷ィ⟬䜢ᡴ䛱ษ䛳䛶䛔䜛㻕䚹ྠᅗ䛛䜙䠈ᮏ䝁䜲䝹䛾ᐃ᱁㟁ὶ㻞㻜㻜㻌㻭䛜⮫⏺㟁ὶ䛸䛺䜛㐠㌿ ᗘ䛿㻠㻡㻌㻷⛬ᗘ䛸᥎ᐃ䛥䜜䜛䚹タィἲ䛾ヲ⣽䜔☢ሙᆒ୍ᗘ䜢ᨵၿ䛧䛯タィ⤖ᯝ䠈䛒䜛䛔䛿⥺ᮦ≉ᛶ䛾㛗ᡭ᪉ྥ୙ᆒ୍ᛶ䜢⪃៖䛧䛯≉ᛶホ౯⤖ᯝ䛺䛹䠈ヲ⣽䛿ㅮ₇ᙜ᪥䛻ሗ࿌䛩䜛䚹㻌ㅰ㎡㻌ᮏ◊✲䛿䠈ᅜ❧◊✲㛤Ⓨἲே᪂䜶䝛䝹䜼䞊䞉⏘ᴗᢏ⾡⥲㻌ྜ㛤Ⓨᶵᵓ䠄㻺㻱㻰㻻䠅䛾䛂㧗 ㉸㟁ᑟᐇ⏝໬ಁ㐍ᢏ⾡㛤Ⓨ䛃㻲㼕㼓㻚㻌㻟㻌㻭㼚㻌㼍㼚㼍㼘㼥㼟㼕㼟㻌㼞㼑㼟㼡㼘㼠㻌㼛㼒㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼥㻌㼛㼒㻌䛾䛖䛱䛂㧗 ㉸㟁ᑟ㧗Ᏻᐃ☢ሙ䝬䜾䝛䝑䝖䝅䝇䝔䝮㛤Ⓨ䛃䛻䜘䜚㻰㻯㻌㼏㼡㼞㼞㼑㼚㼠㻌㼠㼞㼍㼚㼟㼜㼛㼞㼠㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼛㼒㻌㻲㼕㼓㻚㻌㻞㻌ጤク䞉ᨭ᥼䜢ཷ䛡ᐇ᪋䛧䛯䜒䛾䛷䛒䜛䚹㻌㻌

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第95回

2017年度秋季低温工学・超電導学会

1A-p09

HTS マグネット

ຍ㏿ჾ⏝ 㻴㼀㻿 䝬䜾䝛䝑䝖䛾㛤Ⓨ䠄䠑䠅㻌䇷㻿㼡㼜㼑㼞㻷㻱㻷㻮 ⾪✺Ⅼ⏝භᴟ䝬䜾䝛䝑䝖䛾䝁䜲䝹ヨస䇷㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㻴㼀㻿㻌㼍㼏㼏㼑㼘㼑㼞㼍㼠㼛㼞㻌㼙㼍㼓㼚㼑㼠㻌㻔㻡㻕㻌䇶㻌 㻲㼍㼎㼞㼕㼏㼍㼠㼕㼛㼚㻌㼛㼒㻌㼜㼞㼛㼠㼛㼠㼥㼜㼑㻌㼏㼛㼕㼘㼟㻌㼒㼛㼞㻌㻿㼡㼜㼑㼞㻷㻱㻷㻮㻌㻵㻾㻌㼟㼑㼤㼠㼡㼜㼛㼘㼑㻌㼙㼍㼓㼚㼑㼠㻌䇶㻌㻌⸨⏣㻌 ┿ྖ㻘㻌 Ṋ⸨㻌 ⩧࿃㻘㻌 㣤ᓥ㻌 ᗣ⿱㻘㻌 ┤Ụ㻌 㑥ᾈ㻌 䠄䝣䝆䜽䝷䠅㻌 㻧㻌 㻌኱ෆ㻌 ᚨே㻘㻌 ከ࿴⏣㻌 ṇᩥ㻘㻌 ᑎᓥ㻌 ᫛⏨㻘㻌 ቑ⃝㻌 ⨾ె㻘㻌 ⋤㻌 ᪫ᮾ㻘㻌 ᅵᒇ㻌 Ύ⃈㻌 䠄㻷㻱㻷䠅㻌 㻧㻌 ⳥ụ㻌 ❶ᘯ㻌 䠄≀ᮦ◊䠅㻌㻲㼁㻶㻵㼀㻭㻌㻿㼔㼕㼚㼖㼕㻘㻌㻹㼁㼀㻻㻌㻿㼔㼛㼓㼛㻘㻌㻵㻵㻶㻵㻹㻭㻌㼅㼍㼟㼡㼔㼕㼞㼛㻘㻌㻺㻭㻻㻱㻌㻷㼡㼚㼕㼔㼕㼞㼛㻌㻔㻲㼁㻶㻵㻷㼁㻾㻭㻕㻌㻧㻌 㻌㻻㻴㼁㻯㻴㻵㻌㻺㼛㼞㼕㼔㼕㼠㼛㻘㻌㼀㻭㼃㻭㻰㻭㻌㻹㼍㼟㼍㼒㼡㼙㼕㻘㻌㼀㻱㻾㻭㻿㻴㻵㻹㻭㻌㻭㼗㼕㼛㻘㻌㻹㻭㻿㼁㼆㻭㼃㻭㻌㻹㼕㼗㼍㻘㻌㼃㻭㻺㻳㻌㼄㼡㼐㼛㼚㼓㻘㻌㼀㻿㼁㻯㻴㻵㼅㻭㻌㻷㼕㼥㼛㼟㼡㼙㼕㻌㻔㻷㻱㻷㻕㻌 䠗㻌㻷㻵㻷㼁㻯㻴㻵㻌㻭㼗㼕㼔㼕㼞㼛㻌㻔㻺㻵㻹㻿㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼟㼔㼕㼚㼖㼕㻚㼒㼡㼖㼕㼠㼍㻬㼖㼜㻚㼒㼡㼖㼕㼗㼡㼞㼍㻚㼏㼛㼙㻌㻌㻝䠊䛿䛨䜑䛻㻌⌧ᅾᘓタ䛜㐍䜑䜙䜜䛶䛔䜛 㻿㼡㼜㼑㼞㻷㻱㻷㻮 䛻䛚䛔䛶䠈Ⰽ཰ᕪ⿵ṇ⏝䛾䛯䜑䛾 㻴㼀㻿 භᴟ䝬䜾䝛䝑䝖䛜᳨ウ䛥䜜䛶䛔䜛㼇㻝㼉䠊㻴㼀㻿 ᑟయ䛸䛧䛶䛿 㻾㻱㻮㻯㻻 䝔䞊䝥⥺ᮦ䜢᝿ᐃ䛧䛶䛚䜚䠈䛣䜜䜎䛷ᡃ䚻䛿䝬䜾䝛䝑䝖タィ㼇㻞㼉䠈ᑠᆺ 㻾㻱㻮㻯㻻 䝁䜲䝹䜢⏝䛔䛯䜽䜶䞁䝏ヨ㦂㼇㻟㼉䠈䜽䜶䞁䝏ᣲື䛾ᩘ್ゎᯒ㼇㻠㼉䜢ᐇ᪋䛧䛶䛝䛯䠊௒ᅇ䠈භᴟ䝬䜾䝛䝑䝖䛾䝜䞊䝬䝹භᴟ⏝䛾▴ᙧ䝺䞊䝇䝖䝷䝑䜽ᙧ≧䛾 㻾㻱㻮㻯㻻 䝁䜲䝹䜢స〇䛧䛯䛾䛷䠈䛭䛾≉ᛶ䛻䛴䛔䛶ሗ࿌㻲㼕㼓㻚㻌㻝㻚㻌㻼㼔㼛㼠㼛㼓㼞㼍㼜㼔㻌㼛㼒㻌㼍㻌㻾㻱㻮㻯㻻㻌㼏㼛㼕㼘㻌㻔㻏㻢㻕㻚㻌䛩䜛䠊㻌㻌㻞䠊䝁䜲䝹௙ᵝ㻌䝁䜲䝹䛻౑⏝䛧䛯 㻾㻱㻮㻯㻻 䝔䞊䝥⥺ᮦ䛿䝣䝆䜽䝷〇 㻠㻌㼙㼙ᖜ䠈㻣㻡㻌P㼙 ᇶᯈ䠈඲࿘ 㻞㻜㻌P㼙 ཌ 㻯㼡 䜑䛳䛝⥺ᮦ䠄䝫䝸䜲䝭䝗䝔䞊䝥⤯⦕䠅䛷䛒䜛䠊䝁䜲䝹௙ᵝ䜢 㼀㼍㼎㼘㼑㻌 㻝 䛻♧䛩䠊ᕳᯟ䛿┿㘷〇䛷䛒䜚䠈㛗᪉ᙧ䛾ゅ䜢 㻾㻤㻚㻡㻌㼙㼙 䛸䛧䛯▴ᙧ䝺䞊䝇䝖䝷䝑䜽ᙧ≧䛷䛒䜛䠊䝁䜲䝹䛿 㻞 ᒙ䛾䝟䞁䜿䞊䜻䝁䜲䝹䛷䛒䜚䠈ྵᾐ䛿䜶䝫䜻䝅ᶞ⬡䛻䜘䜛┿✵ྵᾐ䛸䛧䛯䠊ᕳ⥺ෆ㒊䛻䛿⥺ᮦྠኈ䛾༙⏣᥋⥆䜢 㻟 䞃ᡤྵ䜣䛷䛔䜛䠊㻌㻌㻟䠊䝁䜲䝹ヨస⤖ᯝ㻌㻲㼕㼓㻚㻌㻞㻚㻌㻵㻙㼂㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㼛㼒㻌㼍㼘㼘㻌㻾㻱㻮㻯㻻㻌㼏㼛㼕㼘㼟㻌㼍㼠㻌㻣㻣㻚㻟㻌㻷㻚㻌㻲㼕㼓㻚㻌 㻝 䛻ヨస䛧䛯䝁䜲䝹䛾እほ෗┿䜢♧䛩䠊䛣䛾䜘䛖䛺䝁䜲㻌䝹䜢ྜィ 㻢 ಶస〇䛧䠈ᾮయ❅⣲୰䛷 㻵㻙㼂 ≉ᛶ䜢 ᐃ䛧䛯䠊㻵㻙㼂㼀㼍㼎㼘㼑㻌㻞㻚㻌㻾㼑㼟㼡㼘㼠㼟㻌㼛㼒㻾㻱㻮㻯㻻㻌㼏㼛㼕㼘㻌㼒㼍㼎㼞㼕㼏㼍㼠㼕㼛㼚㻚㻌䜹䞊䝤䛻䛿᥋⥆᢬ᢠ䛻㉳ᅉ䛩䜛䜸䞊䝭䝑䜽䛺ഴ䛝䛜䛒䜛䠊䛭䛾᢬ᢠᡂศ䜢ᕪ䛧ᘬ䛔䛯 㻵㻙㼂 ≉ᛶ䜢ᅗ 㻞 䛻♧䛩䠊ྛ䝁䜲䝹䛾 㻵㼏䠈㼚 ್䠈᥋⥆᢬ᢠ䠈䝁䜲䝹ᑍἲ䛾⤖ᯝ䜢 㻲㼕㼓㻚㻌㻞 䛻♧䛩䠊䝁䜲䝹 㻵㼏䛿⥺ᮦ 㻵㼏 䛻䜘䛳䛶ከᑡ䛾䜀䜙䛴䛝䛿䛒䜛䛜䠈㼚 ್䛿䛩䜉䛶 㻞㻜௨ୖ䛷䛒䜚䠈Ⰻዲ䛺≉ᛶ䛜ᚓ䜙䜜䛯䠊ᑍἲ䛻㛵䛧䛶䛿䠈㼀㼍㼎㼘㼑㻌㻝 䛾ᑍἲ௙ᵝ䛻ᑐ䛧䛶㼼㻜㻚㻝㻌㼙㼙䠄ᮃ䜎䛧䛟䛿㼼㻜㻚㻜㻡㻌㼙㼙䠅䜢┠ᶆ䛸䛧䛯䛜䠈⤖ᯝ䛸䛧䛶 㻝㻌㼙㼙 ⛬ᗘ䛾ㄗᕪ䛜⏕䛨䛯䠊௒ᚋ䛥䜙䛺䜛ᑍἲ⢭ᗘ䛾ᨵၿ䛜ᚲせ䛷䛒䜛䠊㻌㻌㻠䠊䜎䛸䜑㻌
භᴟ䝬䜾䝛䝑䝖⏝䛾▴ᙧ䝺䞊䝇䝖䝷䝑䜽 㻾㻱㻮㻯㻻 䝁䜲䝹䜢 㻢 ಶస〇䛧䛯䠊㟁Ẽⓗ䛺≉ᛶ䛿Ⰻዲ䛷䛒䛳䛯䛜䠈ᑍἲ⢭ᗘ䛿┠ᶆ䛻㐩䛧䛺䛛䛳䛯䠊௒ᚋ䠈䛣䜜䜙䛾䝁䜲䝹䜢භᴟ䝬䜾䝛䝑䝖䛻⤌䜏❧䛶䠈☢ሙ⢭ᗘ➼䛾ホ౯䜢⾜䛖ணᐃ䛷䛒䜛䠊㻌㻌㼀㼍㼎㼘㼑㻌㻝㻚㻌㻿㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㼟㻌㼛㼒㻌㼍㻌㻾㻱㻮㻯㻻㻌㼏㼛㼕㼘㻚㻌㻼㼍㼞㼍㼙㼑㼠㼑㼞㼟㻌㻾㻱㻮㻯㻻㻌㼠㼍㼜㼑㻌㼣㼕㼐㼠㼔㻘㻌㼠㼔㼕㼏㼗㼚㼑㼟㼟㻌㻔㼣㼕㼠㼔㻌㼕㼚㼟㼡㼘㼍㼠㼕㼛㼚㻕㻌㻾㻱㻮㻯㻻㻌㼠㼍㼜㼑㻌㼘㼑㼚㼓㼠㼔㻌㻯㼛㼕㼘㻌㼣㼕㼐㼠㼔㻌㻔㼕㼚㼚㼑㼞㻘㻌㼛㼡㼠㼑㼞㻕㻌㻯㼛㼕㼘㻌㼘㼑㼚㼓㼠㼔㻌㻔㼕㼚㼚㼑㼞㻘㻌㼛㼡㼠㼑㼞㻕㻌㻯㼛㼕㼘㻌㼔㼑㼕㼓㼔㼠㻌㻵㼚㼚㼑㼞㻌㼞㼍㼐㼕㼡㼟㻌㼛㼒㻌㼏㼡㼞㼢㼑㻌㼜㼍㼞㼠㻌㻺㼡㼙㼎㼑㼞㻌㼛㼒㻌㼠㼡㼞㼚㻌㼂㼍㼘㼡㼑㼟㻌
㻠㻚㻝㻌㼙㼙㻘㻌㻜㻚㻝㻤㻡㻌㼙㼙㻌㻝㻝㻜㻌㼙㻌
㻟㻤㻚㻢㻌㼙㼙㻘㻌㻤㻟㻚㻢㻌㼙㼙㻌㻝㻡㻡㻚㻜㻌㼙㼙㻘㻌㻞㻜㻜㻚㻜㻌㼙㼙㻌㻥㻚㻜㻌㼙㼙㻌
㻤㻚㻡㻌㼙㼙㻌
㻝㻞㻝㻌㼠㼡㼞㼚㼟㻌 㽢㻌 㻞㻌㼘㼍㼥㼑㼞㼟㻌㻌㻯㼛㼕㼘㻌㻵㼏㻌㼇㻭㼉㻌

㻏㻝㻌

㻏㻞㻌

㻏㻟㻌

㻏㻠㻌

㻏㻡㻌

㻏㻢㻌

㻣㻡㻚㻞㻌

㻤㻜㻚㻟㻌

㻣㻥㻚㻝㻌

㻣㻤㻚㻥㻌

㻤㻤㻚㻠㻌

㻤㻤㻚㻢㻌

㻯㼛㼕㼘㻌㼚㻙㼢㼍㼘㼡㼑㻌

㻟㻢㻌

㻟㻠㻌

㻞㻥㻌

㻟㻝㻌

㻟㻜㻌

㻟㻣㻌

㻔㻜㻚㻝㻌P㼂㻛㼏㼙㻌㼏㼞㼕㼠㼑㼞㼕㼍㻕㻌㻔㻜㻚㻜㻜㻝㻌 䡚㻌 㻜㻚㻝㻌P㼂㻛㼏㼙㻕㻌㻶㼛㼕㼚㼠㻌㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌
㻜㻚㻡㻢㻌
㻜㻚㻠㻣㻌
㻜㻚㻠㻝㻌
㻜㻚㻡㻟㻌
㻜㻚㻡㻞㻌
㻜㻚㻣㻜㻌
㼇P:㼉㻌
㻯㼛㼕㼘㻌㼣㼕㼐㼠㼔㻌㻔㼛㼡㼠㼑㼞㻕㻌㻤㻠㻚㻠㻡㻌 㻤㻠㻚㻢㻥㻌 㻤㻠㻚㻡㻞㻌 㻤㻟㻚㻤㻞㻌 㻤㻟㻚㻣㻡㻌 㻤㻠㻚㻜㻣㻌㼇㼙㼙㼉㻌㻯㼛㼕㼘㻌㼘㼑㼚㼓㼠㼔㻌㻔㼛㼡㼠㼑㼞㻕㻌㻝㻥㻥㻚㻝㻠㻌 㻝㻥㻥㻚㻠㻥㻌 㻞㻜㻜㻚㻝㻝㻌 㻝㻥㻥㻚㻤㻠㻌 㻞㻜㻜㻚㻝㻜㻌 㻞㻜㻜㻚㻝㻟㻌㼇㼙㼙㼉㻌㻯㼛㼕㼘㻌㼔㼑㼕㼓㼔㼠㻌 㻌
㻤㻚㻤㻡㻌
㻤㻚㻤㻠㻌
㻤㻚㻤㻟㻌
㻤㻚㻥㻜㻌
㻤㻚㻥㻣㻌
㻤㻚㻥㻜㻌
㼇㼙㼙㼉㻌


ㅰ㎡㻌
ᮏ◊✲ࡣ⛉Ꮫ◊✲㈝⿵ຓ㔠 + ࡢຓᡂ࡟ࡼࡾᐇ
᪋ࡋࡓࡶࡢ࡛࠶ࡿࠋ㻌ཧ⪃ᩥ⊩㻌㼇㻝㼉㻌㻷㻚㻌㼀㼟㼡㼏㼔㼕㼥㼍㻌㼑㼠㻚㼍㼘㻚㻘㻌㻵㻱㻱㻱㻌㼀㼞㼍㼚㼟㻚㻌㻭㼜㼜㼘㻚㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻘㻌㼂㼛㼘㻚㻌㻞㻢㻌㻔㻞㻜㻝㻢㻕㻌㻠㻝㻜㻜㻥㻜㻠㻚㻌㼇㻞㼉㻌㻷㻚㻌㼀㼟㼡㼏㼔㼕㼥㼍㻌㼑㼠㻚㼍㼘㻚㻘㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻥㻞㻌㻔㻞㻜㻝㻡㻕㻌㼜㻚㻝㻥㻠㻚㻌㼇㻟㼉㻌 㻿㻚㻌 㻲㼡㼖㼕㼠㼍㻌 㼑㼠㻚㼍㼘㻚㻘㻌 㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌 㼛㼒㻌 㻯㻿㻶㻌 㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌 㼂㼛㼘㻚㻌 㻥㻞㻌㻔㻞㻜㻝㻡㻕㻌㼜㻚㻝㻥㻡㻚㻌 㻌㼇㻠㼉㻌 㼄㻚㻌 㼃㼍㼚㼓㻌 㼑㼠㻚㼍㼘㻚㻘㻌 㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌 㼛㼒㻌 㻯㻿㻶㻌 㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌 㼂㼛㼘㻚㻌 㻥㻞㻌㻔㻞㻜㻝㻡㻕㻌㼜㻚㻝㻥㻢㻚㻌― 19 ―

第95回

2017年度秋季低温工学・超電導学会