2B-a01

鉄系線材・バルク

686$J6Q ྜ㔠஧㔜⿕そᮦࢆ⏝࠸ࡓ 3,7 %D. )H$V ࢸ࣮ࣉࡢస〇᮲௳㻼㼞㼑㼜㼍㼞㼍㼠㼕㼛㼚㻌㼏㼛㼚㼐㼕㼠㼕㼛㼚㼟㻌㼛㼒㻌㻼㻵㼀㻙㻔㻮㼍㻘㻷㻕㻲㼑㻞㻭㼟㻞㻌㼠㼍㼜㼑㼟㻌㼡㼟㼕㼚㼓㻌㻿㼁㻿㻛㻭㼓㻙㻿㼚㻌㼍㼘㼘㼛㼥㻌㼐㼛㼡㼎㼘㼑㻌㼟㼔㼑㼍㼠㼔㻌㻌ᡞྔ㻌 ୍ṇ㻔㻺㻵㻹㻿㻕䠗㻌 㻳㼍㼛㻌㼆㼔㼍㼛㼟㼔㼡㼚㻔㻵㻱㻱㻙㻯㻭㻿㻕䠗㻌 ᯇᮏ㻌 ᫂ၿ㻘㻌 ⳥ụ㻌 ❶ᘯ㻘㻌 ⇃಴㻌 ᾈ᫂䠄㻺㻵㻹㻿䠅㻌㼀㻻㻳㻭㻺㻻㻌㻷㼍㼦㼡㼙㼍㼟㼍㻧㻌㻳㼍㼛㻌㼆㼔㼍㼛㼟㼔㼡㼚㻔㻵㻱㻱㻙㻯㻭㻿㻕㻧㻌㻹㻭㼀㼁㻿㻹㻻㼀㻻㻌㻭㼗㼕㼥㼛㼟㼔㼕㻘㻌㻷㻵㻷㼁㻯㻴㻵㻌㻭㼗㼕㼔㼕㼞㼛㻘㻌㻷㼁㻹㻭㻷㼁㻾㻭㻌㻴㼕㼞㼛㼍㼗㼕㻌㻔㻺㻵㻹㻿㻕㻌㻌㻱㻙㼙㼍㼕㼘㻦㻌㼀㻻㻳㻭㻺㻻㻚㻷㼍㼦㼡㼙㼍㼟㼍㻬㼚㼕㼙㼟㻚㼓㼛㻚㼖㼜㻌㻌㻌㻞㻚㻌㼆㻚㻿㻚㻌㻳㼍㼛㻌㼑㼠㻌㼍㼘㻚㻦㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻌㻿㼏㼕㻚㻌㼀㼑㼏㼔㼚㼛㼘㻚㻌㻞㻤㻔㻞㻜㻝㻡㻕㻌㻜㻝㻜㻡㻜㻝㻚㻌䠍䠊䛿䛨䜑䛻㻌
㻟㻚㻌㼆㻚㻿㻚㻌㻳㼍㼛㻌㼑㼠㻌㼍㼘㻚㻦㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻌㻿㼏㼕㻚㻌㼀㼑㼏㼔㼚㼛㼘㻚㻌㻞㻤㻔㻞㻜㻝㻣㻕㻌㻜㻥㻡㻜㻝㻞㻚㻌㕲⣔㉸ఏᑟయ䛿㧗䛔⮫⏺ ᗘ㻔㼀㼏㻕䛸ᴟ䜑䛶㧗䛔ୖ㒊⮫⏺
㻌☢⏺㻔㻴㼏㻞㻕䜢᭷䛩䜛䛯䜑䚸ᾮయ䝦䝸䜴䝮䛾䜏䛺䜙䛪ᾮయỈ⣲䚸෭෾ᶵ෭༷䛺䛹୰ ᗘ䛷䛾ᙉ☢ሙⓎ⏕⏝⥺ᮦ䛸䛧䛶ᛂ⏝䛜ᮇᚅ䛥䜜䛶䛔䜛䚹௒䛾䛸䛣䜝㻔㻮㼍㻔㻿㼞㻕㻘㻷㻕㻲㼑㻞㻭㼟㻞㻌 㻔㻝㻞㻞 ⣔㻕䛜ᐇ⏝ⓗ䛻᭱䜒᭷ᮃ䛷䚸㼑㼤㻙㼟㼕㼠㼡㻌 㻼㼛㼣㼐㼑㼞㻙㼕㼚㻙㼠㼡㼎㼑㻌 㻔㻼㻵㼀㻕ἲ䛻䜘䜚⥺ᮦ䛜ヨస䛥䜜䛶䛝䛯䚹㻼㻵㼀 ἲ䛾⿕そᮦ䛸䛧䛶䛿⣧ 㻭㼓 䛜᭱䜒୍⯡ⓗ䛷䛒䜛䛜䚸ᡃ䚻䛾䜾䝹䞊䝥䛷䛿⣧ 㻭㼓 䛻᭰䜟䜚ᶵᲔⓗᙉᗘ䛻ඃ䜜䛯 㻭㼓㻙㻿㼚 ྜ㔠䜢⏝䛔䜛ᡭἲ䜢ᥦ᱌䛧䛶䛔䜛㼇㻝㼉䚹䛥䜙䛻ᡃ䚻䛿䚸㻿㼁㻿㻛㻭㼓㻛㻮㼍㻙㻝㻞㻞 ஧㔜⿕そ䝔䞊䝥㼇㻞㼉䛾 㻭㼓 䜢 㻭㼓㻙㻿㼚ྜ㔠䛻ධ䜜᭰䛘䜛䛣䛸䛻䜘䛳䛶኱ᖜ䛺≉ᛶྥୖ䛻䜒ᡂຌ䛧䛯㼇㻟㼉䚹㻌䛣䛾 㻿㼁㻿㻛㻭㼓㻙㻿㼚㻛㻝㻞㻞 䝔䞊䝥䛿㏻ᖖ䛾෭㛫ຍᕤ䚸⇕ฎ⌮䛷స〇䛥䜜䜛 㻼㻵㼀㻝㻞㻞 ⥺ᮦ䛾䛺䛛䛷䛿᭱䜒ඃ䜜䛯≉ᛶ䜢♧䛧䚸㻌ᐇ⏝㠃䛷䛾ᮇᚅ䜒኱䛝䛔䚹ᮏ◊✲䛷䛿ຍᕤ䚸㻿㼚 ⃰ᗘ䚸⇕ฎ⌮㻲㼕㼓㻚㻌㻝㻌㼀㼞㼍㼚㼟㼢㼑㼞㼟㼑㻌㼏㼞㼛㼟㼟㻌㼟㼑㼏㼠㼕㼛㼚㼟㻌㼛㼒㻌㻿㼁㻿㻛㻭㼓㻙㻔㻜㻙㻣㻚㻡㻕㼍㼠㻑㻿㼚㻛㻮㼍㻝㻞㻞㻌䛺䛹䛾స〇᮲௳䜢ᗈ⠊ᅖ䛻ኚ໬䛥䛫䛶䚸䛭䛾㐺ṇ໬䜢┠ᣦ䛧㼠㼍㼜㼑㼟㻌㼔㼑㼍㼠㻌㼠㼞㼑㼍㼠㼑㼐㻌㼍㼠㻌㻣㻡㻜º㻯㻌㼒㼛㼞㻌㻞㼔㻚㻌䛯⣔⤫ⓗ䛺◊✲䜢⾜䛳䛯䚹㻌㻞䠊ᐇ㦂᪉ἲ㻌㻭㼓㻙㻿㼚 ྜ㔠䛿 㻭㼓 ∦䛸 㻿㼚 ⢏䜢⁐ゎ㻘㗪㐀䛧䛶స〇䛧䚸㻿㼚 ⃰ᗘ䛿 㻜㻙㻝㻜㼍㼠㻑䛾㛫䛷ኚ໬䛥䛫䛯䚹㻔㻮㼍㻘㻷㻕㻲㼑㻞㻭㼟㻞 䛾๓㥑య䛿䚸ྛඖ⣲༢య䛾ཎᩱ䜢䝪䞊䝹䝭䝹䛷ΰྜ䚸⇕ฎ⌮䛩䜛䛣䛸䛻䜘䛳䛶స〇䛧䛯䚹䛣䛾๓㥑య⢊ᮎ䜢 㻭㼓㻙㻿㼚 ྜ㔠⟶䛻䛴䜑䛶ຍᕤᚋ 䚸 ෌ ᗘ 㻿㼁㻿 ⟶ 䛻 ᤄ ධ 䚸 ຍ ᕤ 䛩 䜛 䛣 䛸 䛻 䜘 䜚㻿㼁㻿㻛㻭㼓㻙㻿㼚㻛㻮㼍㻙㻝㻞㻞 䛾஧㔜⿕そ䛾䝔䞊䝥⥺ᮦ䜢స〇䛧䛯䚹ຍᕤ䛿⁁䝻䞊䝹䚸䜹䝉䝑䝖䝻䞊䝷䚸ᅽᘏ䛷⾜䛔䚸⇕ฎ⌮䛿 㻿㼁㻿⟶䛻ᑒධ䛧䛶⾜䛳䛯䚹㻌㻌㻟䠊ᐇ㦂⤖ᯝ䛸⪃ᐹ㻌㻭㼓㻙㻿㼚 ྜ㔠䛿 㻿㼚 ⃰ᗘ䛜ᴟ➃䛻㧗䛟䛺䜛䛸ᅛ⁐య◳໬䚸ຍᕤ◳໬䛻䜘䛳䛶෭㛫ຍᕤ䛜ᅔ㞴䛻䛺䜛䚹䛧䛛䛧䚸㻲㼕㼓㻚㻌 㻝 䛻♧䛧㻌䛯䜘䛖䛻 㻿㼁㻿㻛㻭㼓㻙㻿㼚 䛾஧㔜⿕そ䛻䛩䜛䛸 㻣㻚㻡㼍㼠㻑㻿㼚 䛾⃰ᗘ䜎䛷㻲㼕㼓㻚㻌㻞㻌㻶㼏㻙㻴㻌㼏㼡㼞㼢㼑㼟㻌㼛㼒㻌㼠㼔㼑㻌㻿㼁㻿㻛㻭㼓㻙㻔㻜㻙㻣㻚㻡㻕㼍㼠㻑㻿㼚㻛㻮㼍㻝㻞㻞㻌㼠㼍㼜㼑㼟㻌」ྜయ䛸䛧䛶䛾ຍᕤ䛿඘ศྍ⬟䛷䛒䜛䚹㻿㼚 ⃰ᗘ䛾ୖ᪼䛸䛸䜒㼔㼑㼍㼠㻌㼠㼞㼑㼍㼠㼑㼐㻌㼍㼠㻌㻣㻡㻜º㻯㻌㼒㼛㼞㻌㻞㼔㻚㻌䛻 㻮㼍㻙㻝㻞㻞 䝁䜰㒊䛾⦓ᐦᗘ䚸㓄ྥᛶ䛿ྥୖ䛧䚸㻲㼕㼓㻚㻌 㻞㻌 䛻♧䛩䜘䛖䛻 㻶㼏 䛿 㻡㼍㼠㻑㻿㼚 䜎䛷ୖ᪼䛩䜛䚹㻣㻚㻡㼍㼠㻑㻿㼚 䛻䛺䜛䛸 㻶㼏 䛿኱ᖜ䛻పୗ䛩䜛䛜䚸䛣䜜䛿ᙉຍᕤ䛻䜘䜛ᚤᑠ䜽䝷䝑䜽䛾Ⓨ⏕䛻䜘䜛䜒䛾䛸᥎ 䛥䜜䜛䚹䛧䛯䛜䛳䛶㐺ṇ䛺 㻿㼚 ⃰ᗘ䛿 㻞㻚㻡㻙㻡㼍㼠㻑䛾⠊ᅖ䛷䚸䝥䝺䝇䛧䛯ヨᩱ䛷䛿 㻠㻚㻞㻷䚸㻝㻜㻌 㼀 䛷ᐇ⏝䝺䝧䝹䛾 㻝㻜㻡㻌㻭㻛㼏㼙㻞 䜢㉺䛘䜛ඃ䜜䛯 㻶㼏 ್䛜ᚓ䜙䜜䛯䚹㻌㻭㼓㻙㻿㼚 ྜ㔠໬䛻䜘䜛䜒䛖୍䛴䛾≉ᚩ䛿䚸⇕ฎ⌮ ᗘ䛾పୗ䛜ྍ⬟䛺䛣䛸䛷䛒䜛䚹㻲㼕㼓㻚㻌㻟 䛿⇕ฎ⌮ ᗘ䛻䜘䜛 㻶㼏㻔㻠㻚㻞㻷㻘㻌㻝㻜㻌㼀㻕䛾ኚ໬䜢⣧ 㻭㼓 䛸 㻡㼍㼠㻑㻿㼚 䛾ሙྜ䛸䛷ẚ㍑䛧䛶♧䛧䛯䚹䛣䜜䛛䜙䜟䛛䜛䜘䛖䛻 㻡㼍㼠㻑㻿㼚 䛷䛿 㻡㻡㻜º㻯 䛾ప 䜎䛷 㻡㼤㻝㻜㻠㻭㻛㼏㼙㻞 ௨ୖ䛾㧗䛔 㻶㼏 䛜ಖᣢ䛥䜜䛶䛔䜛䚹⇕ฎ⌮ ᗘ䛜ప䛟䛶῭䜐䛣䛸䛿䚸ᑗ᮶䛾㛗ᑻ໬䜢⪃៖䛩䜛䛸᭷฼䛷䛒䜛䚹㻌㻌㻠䠊ㅰ㻌 ㎡㻌㻌☢ሙ୰䛾㻶㼏 ᐃ䛻㝿䛧䛶䛚ୡヰᡝ䛔䛯⸨஭ᏹᶞẶ㻔㻺㻵㻹㻿㻕㻲㼕㼓㻚㻌 㻟㻌 㻌 㻯㼔㼍㼚㼓㼑㻌 㼛㼒㻌 㻶㼏㻔㻠㻚㻞㻷㻘㻌 㻝㻜㻌 㼀㻕㻌 㼍㼟㻌 㼍㻌 㼒㼡㼚㼏㼠㼕㼛㼚㻌 㼛㼒㻌 㼔㼑㼍㼠㻌䛻ឤㅰ䛩䜛䚹㻌
㼠㼞㼑㼍㼠㼙㼑㼚㼠㻌 㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼙㼑㼍㼟㼡㼞㼑㼐㻌 㼒㼛㼞㻌 㻿㼁㻿㻛㼜㼡㼞㼑㻭㼓㻛㻮㼍㻝㻞㻞㻌㻌㼍㼚㼐㻌㻿㼁㻿㻛㻭㼓㻙㻡㼍㼠㻑㻿㼚㻛㻮㼍㻝㻞㻞㻌㼠㼍㼜㼑㼟㻚㻌 㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌㻷㻚㻌㼀㼛㼓㼍㼚㼛㻌㼑㼠㻌㼍㼘㻚㻦㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻌㻿㼏㼕㻚㻌㼀㼑㼏㼔㼚㼛㼘㻚㻟㻜㻔㻞㻜㻝㻣㻕㻌㻜㻝㻡㻜㻝㻞㻚㻌― 98 ―

第95回

2017年度秋季低温工学・超電導学会

2B-a02

鉄系線材・バルク㧗䜶䝛䝹䜼䞊ΰྜἲ䛻䜘䜛 㻮㼍㻝㻞㻞 ከ⤖ᬗ䝞䝹䜽䛾ྜᡂ䛸 㻶㼏 ≉ᛶ㻌㻿㼥㼚㼠㼔㼑㼟㼕㼟㻌㼍㼚㼐㻌㻶㼏㻌㼜㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㼛㼒㻌㻝㻞㻞㻌㼜㼔㼍㼟㼑㻌㻲㼑㻙㼎㼍㼟㼑㼐㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼜㼛㼘㼥㼏㼞㼥㼟㼠㼍㼘㼘㼕㼚㼑㻌㼎㼡㼘㼗㼟㻌 㻌㼠㼔㼞㼛㼡㼓㼔㻌㼔㼕㼓㼔㻌㼑㼚㼑㼞㼓㼥㻌㼙㼕㼘㼘㼕㼚㼓㻌㼜㼞㼛㼏㼑㼟㼟㻌㻌ᚫ⏣㻌 㐍அ௓䠄㎰ᕤ኱䠅䠈ᒣᮏ㻌 ᫂ಖ䠄㎰ᕤ኱㻘㻌 ᮾᕤ኱䠅㻌㼀㻻㻷㼁㼀㻭㻌㻿㼔㼕㼚㼚㼛㼟㼡㼗㼑㻌㻔㼀㼁㻭㼀㻕䠈㻌 㼅㻭㻹㻭㻹㻻㼀㻻㻌㻭㼗㼕㼥㼍㼟㼡㻌㻔㼀㼁㻭㼀㻘㻌㼀㻵㼀㻱㻯㻴㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼟㻝㻣㻣㻠㻣㻞㼥㻬㼟㼠㻚㼓㼛㻚㼠㼡㼍㼠㻚㼍㼏㻚㼖㼜㻌㻌㻝䠊◊✲┠ⓗ㻌㻌㕲⣔㧗 ㉸ఏᑟయ䛿㧗䛔⮫⏺ ᗘ䛸⮫⏺☢ሙ䜢ᣢ䛴䛣䛸㻌䛛䜙䚸ᙉ☢ሙ☢▼䛺䛹䜈䛾ᛂ⏝䛜ᮇᚅ䛥䜜䛶䛔䜛䚹୍᪉䛷䚸㻌ᙅ⤖ྜ䛾䛯䜑䚸⤖ᬗ⢏ෆ䜢ὶ䜜䜛⮫⏺㟁ὶ㻔㻶㼏㼘㼛㼏㼍㼘㻕䛸ẚ㍑䛧䛶䚸㻌㻌⢏⏺䜢㉺䛘䛶ヨᩱ඲య䜢ὶ䜜䜛⮫⏺㟁ὶ㻔㻶㼏㼓㼘㼛㼎㼍㼘㻕䛜ప䛔ၥ㢟㻌䛜䛒䜛䛜䚸䛭䛾ᙳ㡪䛿௚䛾㧗 ㉸ఏᑟయ䜘䜚䜒ᑠ䛥䛟㼇㻝㻘㻞㼉䚸ከ㻌⤖ᬗᮦᩱ䛸䛧䛶䛾䝫䝔䞁䝅䝱䝹䛿㧗䛔䚹ᮏ◊✲䛷䛿Ⰻዲ䛺㻌㻶㼏㼓㼘㼛㼎㼍㼘 䜢♧䛩㧗⣧ᗘ㕲⣔ከ⤖ᬗయ䜢ྜᡂ䛩䜛䛣䛸䜢┠ⓗ䛸䛧䛯䚹㻌ΰྜ䜶䝛䝹䜼䞊㻔㻱㻮㻹㻕㼇㻟㼉䜢䝟䝷䝯䞊䝍䛸䛧䛶ヨᩱ䜢స〇䛧䚸㧗㻌䜶䝛䝹䜼䞊ΰྜἲ 㻮㼍㻔㻲㼑㻘㻯㼛㻕㻞㻭㼟㻞㼇㻮㼍㻝㻞㻞㼉ከ⤖ᬗయ䛻䛚䛡䜛㻌┦䞉⤌⧊ᙧᡂ䛚䜘䜃⮫⏺㟁ὶ≉ᛶ䛸䛾㛵ಀ䜢᳨ウ䛧䛯䚹㻌㻌㻌㻌㻞䠊ᐇ㦂᪉ἲ㻌㻌㻭㼞 䜾䝻䞊䝤䝪䝑䜽䝇ෆ䛷௙㎸⤌ᡂ䛜 㻮㼍㻔㻲㼑㻜㻚㻥㻞㻯㼛㻜㻚㻜㻤㻕㻞㻭㼟㻞 䛸㻌䛺䜛䜘䛖䛻༢య㔠ᒓ䜢⛗㔞䛧䚸㐟ᫍᆺ䝪䞊䝹䝭䝹䛷 㻱㻮㻹 䜢⣔⤫㻌ⓗ䛻ኚ໬䛥䛫䛶ΰྜ䛧䛯䚹ΰྜ⢊ᮎ䜢୍㍈䝥䝺䝇䛻䜘䜚䝨䝺䝑㻌䝖ᡂᆺ䛧䛯ᚋ䚸▼ⱥ⟶䛻┿✵ᑒධ䛧䚸㻢㻜㻜&㻘㻌㻠㻤㻌㼔 ↝ᡂ䛧䛶ヨ㻌ᩱ䜢స〇䛧䛯䚹స〇䛧䛯ヨᩱ䛻䛴䛔䛶䚸ᐦᗘ ᐃ䚸㼄㻾㻰 䛻䜘㻌䜛ᵓᡂ┦䛚䜘䜃᱁Ꮚᐃᩘ㻔㼍㻘㻌 㼏㻕ホ౯䚸㻿㻱㻹 䛻䜘䜛ᚤ⣽⤌⧊ほ㻌ᐹ䚸㻿㻽㼁㻵㻰㻌㼂㻿㻹 䛻䜘䜛☢໬ ᐃ䚸㻼㻼㻹㻿 䛻䜘䜛㟁Ẽ᢬ᢠ⋡㻌ᐃ䜢⾜䛳䛯䚹↝ᡂᚋヨᩱ䛾 㼄㻾㻰㻔㻲㼕㼓㻚㻞㻔㼎㻕㻕䛛䜙 㻮㼍㻝㻞㻞 䛾䝯䜲䞁㻌䝢䞊䜽್༙ᖜ㻔㻲㼃㻴㻹㻔㻝㻜㻟㻕㻕䛸᱁Ꮚᐃᩘ㻔㼍㻘㻌 㼏㻕䜢䚸☢໬⋡ ᐃ)LJ%DOOPLOOLQJHQHUJ\(
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&R %DSRO\FU\VWDOOLQH VDPSOHV㻚ZLGWKIRUWKH&R%DSRO\FU\VWDOOLQHVDPSOHV㻚 ZLGWKIRUWKH㻲㼕㼓㻚㻝 䛻 㼍䚸㼏䚸㻲㼃㻴㻹㻔㻝㻜㻟㻕䚸㼀㼏㼙㼍㼓 䛚䜘䜃 㻶㼏 䛾 㻱㻮㻹 ౫Ꮡᛶ䜢♧䛩䚹㻱㻮㻹 䛾ቑຍ䛻ᑐ䛧䛶䚸㼍 䛿ῶᑡ䛧䛯䛜䚸㼏 䛿ᴟᑠ䜢䛸䛳䛯ᚋ䛻ቑຍ䛧䛯䚹㻲㼃㻴㻹㻔㻝㻜㻟㻕䛜ᴟᑠ䜢ྲྀ䛳䛯ᚋቑຍ䛧䛯䛯䜑䚸㧗 㻱㻮㻹 䛷 㻮㼍㻝㻞㻞 䛾⤖ᬗᛶ䛜పୗ䛩䜛䛣䛸䛜ศ䛛䛳䛯䚹୍᪉䛷䚸㼀㼏㼙㼍㼓 䛿ᴟ኱䜢ྲྀ䛳䛯ᚋῶᑡ䛧䛯䚹㼀㼏㼙㼍㼓 䛾᭱኱್䛿 㻱㻮㻹㻌 㻩㻌 㻡㻜㻌㻹㻶㻛㼗㼓 䛷 㻞㻞㻚㻠㻌㻷 䛷䛒䜚 㻯㼛㻤㻑㻙㻮㼍㻝㻞㻞 ༢⤖ᬗ㻔㻞㻞㻌㻷㻕㼇㻠㼉䛸ྠ➼䛾್䜢♧䛧䛯䚹䛣䛾 㻱㻮㻹 䛿 㼏 䛸 㻲㼃㻴㻹㻔㻝㻜㻟㻕䛜ᴟᑠ䜢ྲྀ䛳䛯 㻱㻮㻹䛸୍⮴䛧䛯䚹䜎䛯䚸䛣䛾䛸䛝䛾᱁Ꮚᐃᩘ䛿 㼍㻌㻩㻌㻟㻚㻥㻢㻜㻠㻝㻔㻝㻣㻕䊅䚸㼏㻌㻩㻌㻝㻞㻚㻥㻥㻢㻥㻔㻤㻕䊅䛷䛒䜚䚸༢⤖ᬗ㻔㼍㻌㻩㻌㻟㻚㻥㻢㻟㻥㻔㻠㻕䊅㻘㻌 㼏㻌㻩㻌㻝㻞㻚㻥㻤㻜㻔㻞㻕䊅㻕㼇㻠㼉䛸ẚ䜉䛶䚸㼍 䛿 㻜㻚㻜㻥㻑▷䛟䚸㼏 䛿 㻜㻚㻝㻟㻑㛗䛔್䛸䛺䛳䛯䚹᱁Ꮚᐃᩘ䛾ኚ໬䛾ཎᅉ䛸䛧䛶䝗䞊䝥㔞䛾ቑῶ䛜⪃䛘䜙䜜䜛䛜䚸༢⤖ᬗ䛷䛿 㻯㼛 䝗䞊䝥㔞䛾ቑຍ䛻ᑐ䛧䛶 㼍 䛸 㼏 䛿䛹䛱䜙䜒ῶᑡ䛩䜛䛯䜑䚸䝗䞊䝥㔞䛰䛡䛷䛿ㄝ᫂䛜䛷䛝䛪䚸㧗䜶䝛䝹䜼䞊ΰྜ䛻䜘䜛⤖ᬗᵓ㐀䛾ኚ໬䛻ཎᅉ䛜䛒䜛䛸⪃䛘䛶䛔䜛䚹㻌)LJ ;5';5' SDWWHUQVSDWWHUQV IRUIRU D  WKHWKH DVPLOOHG
DV PLOOHG SRZGHUVSRZGHUV DQG
DQG E  )LJ㼙㼍㼓㻶㼏 䛿 㼀㼏 䛸ྠᵝ䛻 㻱㻮㻹 䛾ቑຍ䛻ᑐ䛧䛶ᴟ኱䜢ྲྀ䛳䛯ᚋ䛻 WKHKHDWHGEXONVZLWKGLIIHUHQWEDOOPLOOLQJHQHUJ\(%0ῶᑡ䛧䛯䛜䚸ᴟ኱䛾఩⨨䛿䜔䜔㧗 㻱㻮㻹 ഃ䛻䛪䜜䛯䚹ΰྜ⢊ᮎ䛾 㼄㻾㻰㻔㻲㼕㼓㻚㻞㻔㼍㻕㻕䛿䚸䝯䜹䝙䜹䝹䜰䝻䜲䞁䜾䛻䜘䜛 㻮㼍㻝㻞㻞 䛾⏕ᡂㅰ㎡㻌 ᮏ◊✲䛿㻶㻿㻼㻿⛉◊㈝ⱝᡭ◊✲䠄㻭䠅䚸ᩥ㒊⛉Ꮫ┬ඖ⣲䜢♧䛧䛶䛚䜚䚸䛥䜙䛻 㻲㼑 䝢䞊䜽䛜ྵ䜎䜜䜛ప 㻱㻮㻹 ヨᩱ䛷䛿䚸ヨᡓ␎䝥䝻䝆䜵䜽䝖䛾ᨭ᥼䜢ཷ䛡䛶⾜䛳䛯䜒䛾䛷䛒䜛䚹㻌ᩱ◚᩿㠃䛾 㻿㻱㻹 ほᐹ䛛䜙䚸୙⣧≀㻔㻲㼑㻭㼟㻕䛜⏕ᡂ䛧䛶䛔䜛䛣䛸㻌䛜☜ㄆ䛷䛝䛯䚹䜎䛯䚸㻶㼏 䛜ῶᑡ䛧ጞ䜑䛯 㻥㻜㻌㻹㻶㻛㼗㼓 ௨ୖ䛾ヨᩱཧ⪃ᩥ⊩㻌$<DPDPRWRHWDO6XSHUFRQG6FL7HFKQRO9RO
䛻䛿䚸⦓ᐦ䛺⢏䛾㞟ྜయ䠄䠚㻝㻜䃛㼙䠅䛜ᙧᡂ䛥䜜䚸࿘ᅖ䛾ᚤ⣽ 
䛺⢏䛸䛾㛫䛻䜽䝷䝑䜽䛜䛒䜛䛣䛸䛜☜ㄆ䛷䛝䛯䚹ᮏ◊✲䛷ᚓ䜙-+HFKHUHWDO6XSHUFRQG6FL7HFKQRO9RO
 
䜜䛯᭱኱䛾 㻶㼏㻌㻔㻡㻌㻷㻘㻌㼟㼑㼘㼒㻙㼒㼕㼑㼘㼐㻕䛿 㻱㻮㻹㻌㻩㻌㻤㻜㻌㻹㻶㻛㼗㼓 䛾䛸䛝䛻 㻝㻚㻣㻠㻞㽢㻝㻜 㻌㻭㻛㼏㼙 䛰䛳䛯䚹ྠヨᩱ䛻ᑐ䛩䜛ṧ␃☢໬ ᐃ㼇㻝㼉䛛䜙ぢ
:+lOHUHWDO6XSHUFRQG6FL7HFKQRO9RO  ✚䜒䛳䛯䚸㻶㼏㼓㼘㼛㼎㼍㼘 䛸㻌 㻶㼏㼘㼛㼏㼍㼘 䛾☢໬䜈䛾ᐤ୚⋡䛿 㻥㻠㻑䛸 㻢㻑䛷䛒䛳䛯
䛯䜑䚸䛣䛾 㻶㼏 䛿⢏㛫㟁ὶ䜢ᙉ䛟཯ᫎ䛧䛯䜒䛾䛸⪃䛘䜙䜜䜛䚹㻌
$66HIDWHWDO3K\V5HY/HWW9RO  

― 99 ―

第95回

2017年度秋季低温工学・超電導学会

2B-a03

鉄系線材・バルク䝩䝑䝖䝥䝺䝇㖟䝅䞊䝇㻔㻮㼍㻘㻷㻕㻲㼑㻞㻭㼟㻞 ⥺ᮦ䛾☢⏺୰☢Ẽ㢧ᚤἲ䛻䜘䜛㻌ᒁᡤ⮫⏺㟁ὶศᕸホ౯㻌Characterization of Local Critical Current Distribution in Hot-pressed Ag-sheathed(Ba,K)Fe2As2 Tape Based on In-field Magnetic Microscopy㻌⋢Ụ㻌 ⯟⛥䠈䝰䝝䞁㻌 䝅䝱䝮䠈ᆓᆅ㻌 ಟᖹ䠈ᮾᕝ㻌 ⏥ᖹ䠈஭ୖ㻌 ᫀ╬㻌 㻔஑ᕞ኱Ꮫ㻕㻧㻌㯤㻌 Ἑ䠈ጦ㻌 ㉸䠈㤿㻌 ⾝೧㻌 㻔୰ᅜ⛉Ꮫ㝔㟁ᕤ◊㻕㻧㻌 ᮌ㡲㻌 㝯ᬸ㻌 㻔஑ᕞ኱Ꮫ㻕㻌TAMAE Koki, MOHAN Shyam, BOCHI Shuhei , HIGASHIKAWA Kohei䠈INOUE Masayoshi䠈KISS Takanobu (Kyushu Univ.);
HUANG He, YAO Chao, MA Yanwei (IEE CAS)
E-mail: k.tamae@pse.ees.kyushu-u.ac.jp㸬ᐇ㦂᪉ἲ
ヨᩱ䛾෗┿䜢 Fig. 1(a)䛻♧䛩䚹ᮏヨᩱ䛿䛒䜙䛛䛨䜑ᅄ➃Ꮚἲ䛻䜘䜛ホ౯䛜⾜䜟䜜䛯䜒䛾䛷䛒䜚䚸ᡃ䚻䛿䛭䛾㟁ᅽ➃Ꮚ㛫䜢ྵ䜐㡿ᇦ䠄ᖜ 5 mm䚸㛗䛥 13 mm䠅䜢㉮ᰝᆺ䝩䞊䝹⣲Ꮚ㢧ᚤ㙾䠄SHPM䠅䛻䜘䛳䛶ほ 䛧䛯䚹䛺䛚ᮏヨᩱ䛿᩿㠃䜢 Fig. 1(b)䛻♧䛩䜘䛖䛺༢ⰺ䛾⥺ᮦ䛷䛒䜛䚹 ᐃᡭ㡰䛿䚸ḟ䛾㏻䜚䛷䛒䜛䚹ヨᩱ䜢 ᐃ ᗘ䜎䛷෭༷䛧䚸እ㒊☢⏺䜢༳ຍ䛩䜛䛣䛸䛷☢໬䛥䛫䚸እ㒊☢⏺䜢୍ᐃ䛻ಖ䛳䛯≧ែ䛷ヨᩱ䛾┤ୖ䛾☢⏺ศᕸ䜢ィ 䛧䛯䚹䜎䛯䚸 ᐃ䛧䛯☢⏺ศᕸ䛛䜙☢໬㟁ὶศᕸ䜢ホ౯䛩䜛䛣䛸䛻䜘䜚䚸ྠヨᩱෆ䛾ᒁᡤ⮫⏺㟁ὶศᕸ䜢ホ౯䛧䛯䚹㻌㸬⤖ᯝ࡜⪃ᐹᐃ ᗘ 5 K䚸10 K䚸20 K䛻䛚䛔䛶䚸እ㒊༳ຍ☢⏺䜢2 T༳ຍ䛧䛯㝿䛻ᚓ䜙䜜䛯⤖ᯝ䜢Fig. 2䛻♧䛩䚹Fig. 2(a)䛻♧䛩☢⏺ศᕸ䛻╔┠䛩䜛䛸䚸ᮏヨᩱ䛿༢ⰺ⥺ᮦ䛷䛒䜛䛻䜒䛛䛛䜟
䜙䛪䚸2䛴䛾㡿ᇦ䛻ศ䛛䜜䛶☢໬䛧䛶䛔䜛ᵝᏊ䛜䜟䛛䜛䚹䛣䜜
䛿䚸Fig. 1(b)♧䛩䜘䛖䛻⥺ᮦ䛾ᖜ᪉ྥ䛾୰ᚰ㒊䛷䛿䝣䜱䝷䝯䞁䝖䛜ⷧ䛟䛺䛳䛶䛚䜚䚸⥺ᮦస〇᫬䛾ຍᕤ䛻㉳ᅉ䛩䜛䜒䛾䛸⪃䛘䜙䜜䜛䚹䜎䛯䚸☢⏺ᙉᗘ䛜㛗ᡭ᪉ྥ䛻୙ᆒ୍䛸䛺䛳䛶䛔䜛ᵝᏊ䜒☜ㄆ䛷䛝䛯䚹୍⯡ⓗ䛺☢໬ἲ䛻䛚䛔䛶䛿䚸☢໬㟁ὶ䛾䝟䝍䞊䞁䜢௬ᐃ䛧䛺䛡䜜䜀䛺䜙䛺䛔䛯䜑䚸䛣䛾䜘䛖䛺୙ᆒ୍ᛶ䛜䛒䜛ሙྜ䛻䚸⮫⏺㟁ὶ್䛾ホ౯䜢⾜䛖䛣䛸䛿ᅔ㞴䛷䛒䜛䛜䚸ᮏ
ᡭἲ䛷䛿Biot-Savart๎䛾㏫ၥ㢟䜢ゎ䛟䛣䛸䛻䜘䛳䛶䚸┤᥋☢
໬㟁ὶศᕸ䜢ホ౯䛩䜛䛣䛸䛜䛷䛝䚸䛭䛾⤖ᯝ䜢Fig. 2(b)䛻♧䛧䛶䛔䜛䚹ྠᅗ䛻䜘䜚ᒁᡤḞ㝗఩⨨䛾≉ᐃ䛜ྍ⬟䛸䛺䜛䚹䜎䛯䚸⮫⏺≧ែ䝰䝕䝹䛻䜘䜜䜀䛣䛾㟁ὶᐦᗘ䛿⮫⏺㟁ὶᐦᗘ䛻ᑐᛂ䛩䜛䛯䜑䚸⥺ᮦ䛾ᖜ᪉ྥ䛻✚ศ䛩䜜䜀䛭䛾఩⨨䛻䛚䛡䜛ᒁᡤ⮫⏺㟁ὶ䜢ồ䜑䜛䛣䛸䛜䛷䛝䜛䚹㟁ᅽ➃Ꮚ㛫䛷䛣䛾್䛾㛗ᡭศᕸ䜢ᖹᆒ䛧䛶ᵝ䚻䛺 ᗘ䛸☢⏺䛻ᑐ䛧䛶䝥䝻䝑䝖䛧䛯䜒
䛾䜢Fig. 3䛻♧䛩䚹5 K䛷ᚓ䜙䜜䛯್䛿䚸4.2 K䛷ᅄ➃Ꮚἲ䛻䜘䛳䛶ᚓ䜙䜜䛯್䛸ᩚྜᛶ䛜Ⰻ䛟䚸ᮏᡭἲ䛾ᐃ㔞ᛶ䜢♧䛧䛶䛔䜛䚹䜎䛯䚸እ㒊☢⏺䛻ᑐ䛩䜛⮫⏺㟁ὶ䛾౫Ꮡᛶ䛾ᑠ䛥䛔䛣䛸䛜☜ㄆ䛷䛝䚸ᙉ䛔☢᮰䝢䞁䝙䞁䜾䜢♧၀䛧䛶䛔䜛䚹䜎䛯䚸ヲ⣽䛿ᙜ᪥䛻ሗ࿌䛩䜛䛜䚸☢Ẽ⦆࿴≉ᛶ䛻䛴䛔䛶䜒ホ౯䛷䛝䛶䛔䜛䚹௨ୖ䛾䜘䛖䛻䚸ᮏᡭἲ䛜㕲⣔㉸ఏᑟ⥺ᮦ䛾ホ౯䛻㧗䛟ᶵ⬟䛩䜛䛣䛸䛜᫂䜙䛛䛸䛺䛳䛯䚹

(a)

(b)

Voltage terminals

Fig. 1. Photographs of the sample: (a)㻌appearance and (b)cross-section. The square region indicates the scannedarea for the SHPM.
(b)

(a)

5K

10 K

20 K

Fig. 2. Experimental results obtained by the SHPM at
2 T in external magnetic field and 5, 10 and 20 K intemperature: (a) perpendicular component of themagnetic field shown by subtracting the backgroundfield and (b) magnetization current distribution.
500
400
Ic [A]

㸬ࡣࡌࡵ࡟
㕲⣔䛾㉸ఏᑟᮦᩱ䛿㧗☢⏺㡿ᇦ䜎䛷⮫⏺㟁ὶᐦᗘ䛜㧗䛟⥔ᣢ䛥䜜䜛䛣䛸䛷▱䜙䜜䛶䛚䜚䚸㧗☢⏺䝬䜾䝛䝑䝖ᛂ⏝䛻ᮇᚅ䛥䜜䛶䛔䜛䚹୍᪉䚸ᛂ⏝䛻䛿⥺ᮦ໬䛜ᚲ㡲䛷䛒䜚䚸䛭䛾≉ᛶไ㝈ᅉᏊゎ᫂䛻䜘䜛⥺ᮦస〇䝥䝻䝉䝇䜈䛾䝣䜱䞊䝗䝞䝑䜽䛜㔜せ䛸䛺䜛䛜䚸ᅄ➃Ꮚἲ䛷䛿ホ౯䛾ᅔ㞴䛺✵㛫ศᕸ䛾᝟ሗ䛜䛭䛾㘽䜢ᥱ䜛䚹䛭䛣䛷ᮏ◊✲䛷䛿䚸☢Ẽ㢧ᚤἲ䛻䜘䜚䚸䝩䝑䝖䝥䝺䝇ἲ䛻䜘䛳䛶స〇䛥䜜䛯㖟䝅䞊䝇(Ba,K)Fe2As2 ⥺ᮦ䛾ᒁᡤ⮫⏺㟁ὶศᕸ䛾ホ౯䜢⾜䛳䛯䚹300

㻵㼏㻬㻡㻷㼋㻿㻴㻼㻹㻵㼏㻬㻠㻚㻞㻷㼋㼠㼞㼍㼚㼟㼜㼛㼞㼠200

㻵㼏㻬㻝㻜㻷㼋㻿㻴㻼㻹㻌100
0㻵㼏㻬㻞㻜㻷㼋㻿㻴㻼㻹㻌㻵㼏㻬㻟㻜㻷㼋㻿㻴㻼㻹㻌

0

2

4

6
B [T]

8

10

12

Fig. 3. Critical current, Ic, vs. external magnetic field,
B, properties obtained by the in-field SHPM. The
results at 5 K is compared with those by the four-probetransport method at 4.2K.㻌

ㅰ㎡ ᮏ◊✲䛿䚸⊂❧⾜ᨻἲே᪥ᮏᏛ⾡᣺⯆఍䛸୰ᅜ⛉Ꮫ㝔(CAS)䛸䛾஧ᅜ㛫஺ὶ஦ᴗ䠄ඹྠ◊✲䠅䛻䜘䜛ᨭ᥼䜢ᚓ䛯䚹

― 100 ―

㻌
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2B-a04

鉄系線材・バルク䝩䝑䝖䝥䝺䝇ἲ䛷స〇䛥䜜䛯 Ba-122 䝔䞊䝥⥺ᮦ䛾X ⥺䝬䜲䜽䝻 CT 䛻䜘䜛ෆ㒊ᵓ㐀ほᐹMicrostructural Analysis in Hot-press Processed Ba-122 Tape by Use of X-ray Micro-CT㻌஭ୖ㻌 ᫀ╬䠈⋢Ụ⯟⛥䠈ࣔࣁࣥࢩ࣒ࣕ㻘㻌 ᆓᆅಟᖹ㻘㻌 ᮾᕝ⏥ᖹ䠄஑኱䠅䠗㻌㯤Ἑ㻘㻌 ጦ㉸㸪㤿⾝೧䠄୰ᅜ⛉Ꮫ㝔䠅䠗㻌 ᮌ㡲㻌 㝯ᬸ䠄஑኱䠅㻌
INOUE Masayoshi䠈TAMAE Koki , MOHAN Shyam, BOCHI Shuhei, HIGASHIKAWA Kohei (Kyushu Univ.);
HUANG He, YAO Chao, MA Yanwei (Chinese Academy of Sciences); KISS Takanobu (Kyusyu Univ.)
E-mail: inoue@ees.kyushu-u.ac.jp㻌䠊䛿䛨䜑䛻
㻌
(Ba, K)Fe2As2 (Ba-122) 䝔䞊䝥⥺ᮦ䛿䚸㧗䛔☢ሙ୰ Jc 䛚䜘㻌䜃୙ྍ㏫☢ሙ䛜ᚓ䜙䜜䜛䛣䛸䛛䜙ᙉ☢ሙᛂ⏝䛻ྥ䛡䛯㛤Ⓨ䛜㐍䜑䜙䜜䛶䛔䜛䚹䝩䝑䝖䝥䝺䝇ἲ䛿䚸☢ሙ୰⮫⏺㟁ὶ䜢ྥୖ䛥䛫䜛ᡭἲ䛸䛧䛶▱䜙䜜䛶䛔䜛䛜䚸ᡃ䚻䛜䝔䞊䝥⥺ᮦෆ㒊䛾⮫⏺㟁ὶᐦᗘศᕸ䜢㉮ᰝᆺ☢Ẽ㢧ᚤ㙾䛷ィ 䛧䛯䛸䛣䜝䚸ෆ㒊䛷䛿኱䛝䛺ศᕸ䜢᭷䛧䛶䛔䜛䛣䛸䛜᫂䜙䛛䛸䛺䛳䛯䚹ᮏ◊✲䛷䛿䚸ྠ⥺ᮦ䛾ෆ㒊ᵓ㐀䜢 X ⥺䝬䜲䜽䝻 CT 䛻䜘䜚ㄪ䜉䚸⥺ᮦෆ㒊䛾୙ᆒ୍ᛶ䛾ཎᅉ䛻䛴䛔䛶⪃ᐹ䜢⾜䛳䛯䚹㻞䠊ᐇ㦂ㅖඖ
ヨᩱ䛿䚸PIT ἲ䛻䜘䜚స〇䛥䜜䛯 Ba-122 䝔䞊䝥⥺ᮦ䛷䚸᭱ᚋ䛻䝩䝑䝖䝥䝺䝇ຍᕤ䛜᪋䛥䜜䛶䛔䜛䚹䝅䞊䝇ᮦ䛿㖟䛷䛒䜛䚹ྠ⥺ᮦ䛾☢ሙ୰⮫⏺㟁ὶ䜢㏻㟁ἲ䛷ィ 䛧䛯ᚋ䚸㉮ᰝᆺ䝩䞊䝹⣲Ꮚ☢Ẽ㢧ᚤ㙾䠄Scanning Hall-probe Microscopy, SHPM䠅
䛷䝔䞊䝥⥺ᮦ㠃ෆ䛾ṧ␃☢ሙศᕸ䜢ィ 䛧䛯䚹ෆ㒊ᵓ㐀䛿䚸X ⥺䝬䜲䜽䝻 CT䠄Micro-scan 1172, Bruker䠅䛻䜘䜚㠀◚ቯ䛻ほᐹ䛧䛯䚹ほᐹ᫬䛾✵㛫ศゎ⬟䛿 ȝPSLx 䛸䛧䛯䚹11
Fig. 1 Distribution of remnant magnetic field in
Ba-122Fe tape measured by Scanning Hall-probe
Microscopy (SHPM). Red square corresponds to thearea of X-ray micro-CT observation.

Solder㻟䠊⤖ᯝ䛚䜘䜃⪃ᐹ
Fig. 1 䛻䚸SHPM 䛷ほᐹ䛥䜜䛯 Ba-122 䝔䞊䝥⥺ᮦ䛾㠃ෆ䛾☢ሙศᕸ䜢♧䛩䚹ྠ⥺ᮦ䛿༢୍䝣䜱䝷䝯䞁䝖ᵓ㐀䛷〇స䛥䜜䛯䛻䜒㛵䜟䜙䛪䚸ṧ␃☢ሙ䛜ᕥྑ䛻ศ㞳䛧䛶䛔䜛䛣䛸䛜ศ䛛䜛䚹䜎䛯䚸䛭䛾☢ሙᙉᗘ䜒㛗ᡭ᪉ྥ䛻ศᕸ䛧䛶䛔䜛䚹Fig. 1 䛾㉥ᯟ䛾㡿ᇦ䜢 X ⥺䝬䜲䜽䝻 CT 䛻䜘䜚ほᐹ䛧䛯䚹䛭䛾⤖ᯝ䜢 Fig. 2䛻♧䛩䚹ྠᅗ䛾⃰ῐ䛿 X ⥺྾཰⋡䛾㐪䛔䜢⾲䛧䛶䛚䜚䚸᫂㒊䛿㧗 X ⥺྾཰⋡䜢䚸ᬯ㒊䛿ప X ⥺྾཰⋡䜢♧䛧䛶䛔䜛䚹䝔䞊䝥⥺ᮦ䛿㖟䝅䞊䝇䜔༙⏣䛸䛔䛳䛯㧗X ⥺྾཰⋡䛾≀㉁䛷そ䜟䜜 䛶 䛔 䜛 䠄 Fig. 2(a) 䠅 䛯 䜑 䚸 ஧ ್ ໬ ཬ 䜃 ㏱ ᫂ ໬ 䜢 ⾜ 䛳 䛯䠄Fig. 2(b), (c)䠅䚹Fig. 2(b) 䜢ぢ䜛䛸䚸(1) 䝣䜱䝷䝯䞁䝖䛾୰ኸ㒊䛻X ⥺྾཰⋡䛾㧗䛔㡿ᇦ䛜䝣䜱䝷䝯䞁䝖䜢ศ᩿䛩䜛䜘䛖䛻Ꮡᅾ䛧䛶䛔䜛䛣䛸䚸(2) ṧ␃☢ሙᙉᗘ䛾ప䛔㡿ᇦ䛷䛿䚸X ⥺྾཰⋡䛾㧗䛔㡿ᇦ䛜ᒁᅾ䛧䛶䛔䜛䛣䛸䚸䛜☜ㄆ䛷䛝䜛䚹䜎䛯䚸䛭䜜䜙䛾 X ⥺྾཰⋡䛿䚸㖟䝅䞊䝇䜔༙⏣䛸ྠ⛬ᗘ䛷䛒䜛䛣䛸䛛䜙䚸ᒁᅾ䛧䛶䛔䜛䛾䛿㔠ᒓ⤌ᡂ䛾≀㉁䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹௨ୖ䜘䜚䚸䝣䜱䝷䝯䞁䝖ෆ㒊䛻ᒁᅾ䛩䜛㔠ᒓ䛜⮫⏺㟁ὶᐦᗘ䛾పୗ䛾ཎᅉ䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹䜎䛯䚸䝣䜱䝷䝯䞁䝖䛾㛗ᡭ᪉ྥ䛻ᑐ䛧䛶䜒 X ྾཰⋡䛾ኚ໬䛜ぢ䜙䜜䚸䝣䜱䝷䝯䞁䝖䛾ᐦᗘ➼䛾⤌⧊䛜ኚ໬䛧䛶䛔䜛䛣䛸䜢♧၀䛧䛶䛔䜛䚸ᙜ᪥䛿䚸⮫⏺㟁ὶᐦᗘ䛾ศᕸ䛸䛾ᑐᛂ䜢ྵ䜑䛯⤖ᯝ䛻䛴䛔䛶ሗ࿌䛩䜛䚹ㅰ㎡ᮏ◊✲䛿䚸JSPS䛸୰ᅜ⛉Ꮫ㝔(CAS)䛸䛾஧ᅜ㛫஺ὶ஦ᴗ䠄ඹྠ◊✲䠅䛻䜘䜛ᨭ᥼䜢ᚓ䛯䚹㻌47.3(mT)Ag sheath
Solder(a)(b)

SolderAg sheath
Solder(c)Fig. 2 Three-dimensional tomograms for HP processed
Ba-122Fe tape. (a) to (c) are corrensponding toincrease of transparency threshold.
㻌― 101 ―

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2017年度秋季低温工学・超電導学会

2B-p01

超電導接続

㻵㻹㻰㻙㻹㼓㻮㻞 ⥺ᮦ䛻䛚䛡䜛㉸ఏᑟ᥋⥆㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼖㼛㼕㼚㼠㼟㻌㼙㼍㼐㼑㻌㼣㼕㼠㼔㻌㼕㼚㼠㼑㼞㼚㼍㼘㻌㻹㼓㻌㼐㼕㼒㼒㼡㼟㼕㼛㼚㻔㻵㻹㻰㻕㻌㼜㼞㼛㼏㼑㼟㼟㼑㼐㻌㻹㼓㻮㻞㼣㼕㼞㼑㼟㻌

Critical current Ic (A)Voltage (PV cm-1)

㻌ᯇᮏ㻌 ᫂ၿ㻘㻌 ๓⏣㻌 ✑䠈⇃಴㻌 ᾈ᫂䠄㻺㻵㻹㻿䠅䠗୍ᮌ㻌 ὒኴ䠈⏣୰㻌 ⚽ᶞ䠄᪥❧〇సᡤ䠅㻌㻹㻭㼀㻿㼁㻹㻻㼀㻻㻌㻭㼗㼕㼥㼛㼟㼔㼕䠈㻹㻭㻱㻰㻭㻌㻹㼕㼚㼛㼞㼡㻘㻌㻷㼁㻹㻭㻷㼁㻾㻭㻌㻴㼕㼞㼛㼍㼗㼕䠄㻺㻵㻹㻿䠅䠗㻵㻯㻴㻵㻷㻵㻌㼅㼛㼠㼍㻘㻌㼀㻭㻺㻭㻷㻭㻌㻴㼕㼐㼑㼗㼕䠄㻴㼕㼠㼍㼏㼔㼕㻘㻌㻸㼠㼐㻚䠅㻌㻱㻙㼙㼍㼕㼘㻦㻌㼙㼍㼠㼟㼡㼙㼛㼠㼛㻚㼍㼗㼕㼥㼛㼟㼔㼕㻬㼚㼕㼙㼟㻚㼓㼛㻚㼖㼜㻌㻌㻝䠊◊✲⫼ᬒ㻌㻹㼓㻮㻞 䛿䚸㔠ᒓ⣔㉸ఏᑟయ䛸䛧䛶䛿㧗䛔⮫⏺ ᗘ䠄 㼀㼏 䠙10㻟㻥㻷䠅䜢᭷䛧䚸ᾮయ䝦䝸䜴䝮䝣䝸䞊䛷㐠㌿䛩䜛ᛂ⏝ᶵჾ䛾㉸ఏ
20 Kᑟᮦᩱ䛸䛧䛶ᮇᚅ䛥䜜䛶䛔䜛䚹䜎䛯䚸㖡㓟໬≀㉸ఏᑟయ䛺䛹8䛾㧗 ㉸ఏᑟయ䛻ẚ䜉䚸㻞 ඖ⣔䛾༢⣧䛺ᮦᩱ䛷䛒䜚㈨※ⓗIMD-wire䛻䜒㇏ᐩ䛷ẚ㍑ⓗᏳ౯䛷䛒䜛䛣䛸䚸⤖ᬗᵓ㐀䜔㉸ఏᑟ≉ᛶ䛾
4.0 T
4.0 T
3.0 T 2.0 T 1.0 T
6␗᪉ᛶ䛜ᑠ䛥䛟㓄ྥฎ⌮䛜୙せ䛷స〇䛧䜔䛩䛔䛣䛸䛷䚸Ⓨぢᙜ᫬䜘䜚⥺ᮦ໬䛾◊✲㛤Ⓨ䛜㐍䜣䛷䛝䛯䚹≉䛻⢊ᮎ䜢㔠ᒓ⟶4
䛻ワ䜑㎸䜏ຍᕤ䜢⾜䛖䝟䜴䝎䞊䞉䜲䞁䞉䝏䝳䞊䝤㻔㻼㻵㼀㻕ἲ䛻䜘䜛
1 V/cm criterion
2⥺ᮦ㛤Ⓨ䛿ᛴ㏿䛻❧䛱ୖ䛜䜚䚸ᕷ㈍䛥䜜䜛䜎䛷䛻䛺䛳䛶䛔䜛䚹(Voltage tap interval: 1 cm)୍᪉䚸⮫⏺㟁ὶᐦᗘ≉ᛶ䛜㧗䛔ෆ㒊䝬䜾䝛䝅䜴䝮ᣑᩓ0䠄㻵㻹㻰䠅ἲ䛻䜘䜛 㻹㼓㻮㻞 ⥺ᮦ䛻䛚䛔䛶䜒㛗ᑻ໬䛜╔䚻䛸㐍䜣䛷
0
5
10
15
20
25
30
䛔䜛㼇㻝㼉䚹䛭䛾䜘䛖䛺୰䚸㉸ఏᑟ䝬䜾䝛䝑䝖➼䛾ᛂ⏝䜢⪃䛘䜛ୖ
Current (A)䛷䚸㻹㼓㻮㻞 ⥺ᮦྠኈ䛾㉸ఏᑟ᥋⥆䛿㔜せ䛺ᢏ⾡䛷䛒䜛䚹ᡃ䚻䛿䛣䜜䜎䛷㧗䛔 㻶㼏 䜢ᣢ䛴 㻵㻹㻰 ⥺ᮦ䛾㛤Ⓨ䜢⾜䛳䛶䛝䛶䛚䜚䚸Fig.1 I–V curve of one of the joints at 20 K.
ᮏ⥺ᮦ䛾ᐇ⏝໬䛾䛯䜑䛻㉸ఏᑟ᥋⥆䛾ᢏ⾡㛤Ⓨ䜢⾜䛳䛶䛝䛯䚹ᮏሗ࿌䛷䛿⡆༢䛺᥋⥆ᡭἲ䛻䜘䜚స〇䛧䛯᥋⥆㒊䛾ヲ⣽100
䛺ホ౯䜢⾜䛳䛯䛾䛷ሗ࿌䜢䛩䜛䚹㻌
4.2 K
㻞䠊ᐇ㦂᪉ἲ㻌
IMD wireJoint㻌 㻵㻹㻰㻙㻹㼓㻮㻞 ⥺ᮦྠኈ䛾㉸ఏᑟ᥋⥆䛾ᡭἲ䛻䛴䛔䛶䛿௨๓
10
䛻Ⓨ⾲㼇㻞㼉䛧䛶䛔䜛䛾䛷ヲ⣽䛿┬䛟䛜䚸㻞 ᮏ䛾⥺ᮦ➃㒊䜢䛴䜆䛧䛯ᚋ䚸㔠ᒓ䝅䞊䝇䜢䛿䛜䛧䛯⥺ᮦྠኈ䜢㔠ᒓ䜻䝱䝑䝥䛻ワ䜑㎸䜏䚸ᅽᘏ䜢᪋䛧䛯ᚋ䚸⇕ฎ⌮䜢⾜䛖ᡭἲ䛷䛒䜛䚹ᮏᡭἲ
25 K
10 K
1
䛷స〇䛧䛯᥋⥆㒊䛻ᑐ䛧䛶ᅄ➃Ꮚἲ䛻䜘䜛⮫⏺㟁ὶ ᐃ䛚
15 K
20 K
䜘䜃 㻿㻱㻹 ➼䛻䜘䜛᩿㠃⤌⧊ほᐹ䜢⾜䛳䛯䚹䜎䛯䚸ྠᡭἲ䛻䜘䛳䛶స〇䛧䛯᥋⥆㒊䜢ྵ䜐 㻝 䝍䞊䞁䝁䜲䝹䜢స〇䛧☢ሙῶ⾶ἲ䛻䜘䜛᥋⥆㒊䛾ホ౯䜢⾜䛳䛯䚹ලయⓗ䛻䛿ఏᑟ෭༷䛻䜘䛳
0.1
0
2
4
6
8
10
12
14
16
䛶䝁䜲䝹䜢෭༷䛧䚸ㄏᑟ䝁䜲䝹䛻䜘䜚☢ሙ䜢Ⓨ⏕䛥䛫䛯ᚋ䚸㻝 䝍
Magnetic field B(T)䞊䞁䝁䜲䝹䛻⿵㊊䛥䜜䛯☢ሙ䛾᫬㛫౫Ꮡᛶ䜢䝩䞊䝹⣲Ꮚ䛻䜘
Fig.2 Magnetic field dependence of Ic of the䜚 ᐃ䛧䛯䚹ᚓ䜙䜜䛯☢ሙῶ⾶᭤⥺䛛䜙᢬ᢠ್䜢⟬ฟ䛧䛯䚹㻌
IMD-processed MgB2 joint at various temperatures.
㻟䠊⤖ᯝ䛚䜘䜃⪃ᐹ㻌㻲㼕㼓㻚㻝 䛻௦⾲ⓗ䛺᥋⥆㒊䛾 㻞㻜㻌㻷 䛷䛾 㻵㻙㼂 ᭤⥺䛾⤖ᯝ䜢♧䛩䚹䛔䛪䜜䛾☢ሙ䛻䛚䛔䛶䜒᫂☜䛺㉸ఏᑟ㑄⛣䛜ぢ䜙䜜䚸㉸ఏᑟ᥋⥆㒊䛻䛚䛔䛶㉸ఏᑟ㟁ὶ䛜ὶ䜜䛶䛔䜛䛣䛸䜢♧䛧䛶䛔䜛䚹䛣䜜䜙䛾 㻵㻙㼂 ᭤⥺䛛䜙ぢ✚䜒䛳䛯 㻵㼏 䜢ྛ ᗘ䛚䜘䜃☢ሙ䛻䛚䛔䛶䝥䝻䝑䝖䛧䛯䛾䛜 㻲㼕㼓㻚㻞 䛷䛒䜛䚹㻠㻚㻞㻌㻷 䛻䛚䛔䛶㉸ఏᑟ᥋⥆㒊䛾್䛿 㻵㻹㻰 ⥺ᮦ䛾 㻝㻛㻟 ⛬ᗘ䛸ప䛔್䛷䛒䛳䛯䚹᥋⥆㒊䛻䛚䛡䜛⥺ᮦ㛗ᡭ᪉ྥ䛻ᑐ䛧䛶᩿㠃ほᐹ䜢⾜䛳䛯⤖ᯝ䜢㻲㼕㼓㻚㻟 䛻♧䛩䚹ᅗ୰䛻ぢ䜙䜜䜛䜘䛖䛻⏺㠃㒊ศ䛻䛿䜽䝷䝑䜽䜔୙⣧≀䛜ከᩘほᐹ䛥䜜䛯䚹⌧᫬Ⅼ䛾᥋⥆᪉ἲ䛿㠀ᖖ䛻⡆౽䛺䜒䛾䛷䛒䜚䚸༢䛺䜛✺䛝ྜ䜟䛫䛰䛡䛷䛿䛣䛾䜘䛖䛺䜽䝷䝑䜽䛾Ⓨ⏕䛿ᢚ䛘䜙䜜䛺䛔䛾䛛䜒䛧䜜䛺䛔䚹୍᪉䛷䚸䛣䛾䜘䛖䛺⏺㠃≧ἣ䛷䛒䜛䛻䜒䛛䛛䜟䜙䛪䚸㻵㼏 䛜ᚓ䜙䜜䛶䛔䜛䛸䛔䛖䛣䛸䛛䜙䚸䝥䝻䝉䝇䛾ᕤኵ➼䛻䛚䛔䛶䛥䜙䛺䜛ᨵၿ䛜ぢ㎸䜑䜛䛸⪃䛘䛶䛔䜛䚹᭱ᚋ䛻☢ሙῶ⾶ἲ䛻䜘䜚䚸᥋⥆㒊䛻䛚䛡䜛᢬ᢠ䜢ぢ✚䜒䛳䛯䛸䛣䜝䚸㻝㻡㻌 㻷 䛻䛚䛔䛶 㻝㻜㻙㻝㻟㻌 䃈䛷䛒䜚䚸㉸ఏᑟ䝬䜾䝛䝑䝖స〇䛾ୖ䛷䜒ẚ㍑ⓗⰋ䛔್䛜ᚓ䜙䜜䛶䛔䜛䛣䛸䛜䜟䛛䛳䛯䚹㻌㻠䠊⤖ゝ㻌㻌 㧗䛔⮫⏺㟁ὶᐦᗘ≉ᛶ䜢᭷䛩䜛 㻵㻹㻰㻙㻹㼓㻮㻞 ⥺ᮦ䛻䛚䛔䛶⡆౽䛺᪉ἲ䛻䜘䜛㉸ఏᑟ᥋⥆䜢ヨ䜏䛯䚹㻞㻡㻌㻷 䛻䛚䛔䛶䜒 㻵㼏 䛜ᚓ䜙䜜䚸㉸ఏᑟ≧ែ䛷᥋⥆䛥䜜䛶䛔䜛䛣䛸䛜☜ㄆ䛷䛝䛯䚹䜎䛯䚸☢ሙῶ⾶ἲ䛻䜘䜛 ᐃ䛻䛚䛔䛶䜒 㻝㻜㻙㻝㻟㻌 䃈⣭䛾⤖ᯝ䛜ᚓ䜙䜜䛯䛜䚸䛥䜙䛺䜛⤌⧊ᨵၿ䛜ᚲせ䛷䛒䜛䛣䛸䛜䜟䛛䛳䛯䚹㻌㻌

Fig.3 Longitudinal cross-sectional SEM image of thesuperconducting joint for IMD-processed MgB2 wire䠊ཧ⪃ᩥ⊩㻌㼇㻝㼉㻌㻿㻚㼅㼑㻌㼑㼠㻌㼍㼘㻚㻘㻌㻿㼡㼜㼑㼏㼛㼚㼐㻚㻌㻿㼏㼕㻚㻌㼀㼑㼏㼔㼚㼛㼘㻚㻌㻞㻞㻥㻌㻔㻞㻜㻝㻢㻕㻘㻌㻝㻝㻟㻜㻜㻠㻚㻌㼇㻞㼉㻌 ⇃಴ᾈ᫂➼㻘㻌㻞㻜㻝㻡 ᖺప ᕤᏛ䡡㉸㟁ᑟᏛ఍⛅Ꮨ኱఍ 㻞㻯㻙㼍㻜㻣㻚㻌― 102 ―

第95回

2017年度秋季低温工学・超電導学会

2B-p02超電導接続

㧗☢ሙ䝬䜾䝛䝑䝖฼⏝䜢┠ᣦ䛧䛯 㻺㼎㼀㼕 䛸 㻮㼕 ⣔⥺ᮦ䛾㉸ఏᑟ᥋ྜ㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼖㼛㼕㼚㼠㻌㼎㼑㼠㼣㼑㼑㼚㻌㻺㼎㼀㼕㻌㼍㼚㼐㻌㻮㼕㻙㻴㼀㻿㻌㼏㼍㼎㼘㼑㼟㻌㼒㼛㼞㻌㼔㼕㼓㼔㻌㼒㼕㼑㼘㼐㻌㼙㼍㼓㼚㼑㼠㻌㻌㧗㔝㻌 ⩏ᙪ䠈ᯇᮏ㻌 ෽䠈㻌 すᓥ㻌 ඖ㻌 䠄≀ᮦᶵᵓ䠅㻌㼀㼍㼗㼍㼚㼛㻌㼅㼛㼟㼔㼕㼔㼕㼗㼛䠈㻌 㻹㼍㼠㼟㼡㼙㼛㼠㼛㻌㻾㼥㼛㻘㻌㻺㼕㼟㼔㼕㼖㼕㼙㼍㻌㻳㼑㼚㻌㻔㻺㻵㻹㻿㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼠㼍㼗㼍㼚㼛㻚㼥㼛㼟㼔㼕㼔㼕㼗㼛㻬㼚㼕㼙㼟㻚㼓㼛㻚㼖㼜㻌㻌

%L

1E7L

D

E

,
9

%L

,
9

1E7L
த஫଑
म॒ट

த஫଑
म॒ट

ȝP)LJ D 6FKHPDWLFLPDJHRIWKHVXSHUFRQGXFWLQJ
MRLQWEHWZHHQ1E7LDQG%L E %6(LPDJHRISROLVKHG FURVVVHFWLRQ DURXQG WKHVXSHUFRQGXFWLQJ MRLQW RI 1E7L DQG %LZLUHVXVLQJ3E6QVROGHU
200


.
4.2 K

1
kOe
N2H

Critical current (A)&ULWLFDOFXUUHQW$㻝䠊䛿䛨䜑䛻㻌
㻞㻜㻝㻠 ᖺ䛻㛤Ⓨ䛥䜜䛯 㻝㻜㻞㻜㻌 㻹㻴㼦㻌 㻔㻞㻠㻌 㼀㻕㻌 ᰾☢Ẽඹ㬆⿦⨨䛾 ㉸ ఏ ᑟ ☢ ▼ 䛻 䛿 䚸 ᭱ ෆ ᒙ 䝁 䜲 䝹 䛻 㻮㼕㻞㻿㼞㻞㻯㼍㻞㻯㼡㻟㻻㻝㻜㻌㻔㻮㼕㻞㻞㻞㻟㻕㻌 䛜⏝䛔䜙䜜䛯㻔㻝㻕䚹䛧䛛䛧䚸䛣䛾㉸ఏᑟ☢▼䛿Ọஂ㟁ὶ㐠㌿䛷䛿䛺䛔䚹䛭䜜䛿䚸㻮㼕㻞㻞㻞㻟㻙㻮㼕㻞㻞㻞㻟 ㉸ఏᑟ᥋ྜ䛰䛡䛷䛺䛟䚸㻺㼎㼀㼕㻙㻮㼕㻞㻞㻟 ㉸ఏᑟ᥋ྜᢏ⾡䛜☜❧䛧䛶䛔䛺䛔䛯䜑䛷䛒䜛䚹㻌䛭䛣䛷ᡃ䚻䛿䚸⁐⼥䛧䛯㉸ఏᑟ䛿䜣䛰䛻㉸ఏᑟ⥺ᮦ䜢䝅䞊䝇䛤䛸ᤄධ䛧䛶᥋ྜ䛩䜛 㼕㼚㻙㼟㼕㼠㼡 䝅䞊䝇⁐⼥ἲ䜢⪃᱌䛧䚸㻺㼎㼀㼕㻙㻮㼕㻞㻞㻞㻟 ⥺ᮦ䛾䝊䝻᢬ᢠ᥋ྜ䜢ヨ䜏䛯䚹䛣䛾᪉ἲ䛷䛿䚸⥺ᮦ䛾䝅䞊䝇䜢஦๓䛻ྲྀ䜚㝖䛟ᚲせ䛜↓䛟䚸⡆༢䛺䝥䝻䝉䝇䛷⥺ᮦྠኈ䜢᥋ྜ䛩䜛䛣䛸䛜䛷䛝䜛㻔㻞㻕䚹㻌㻌㻞䠊ᐇ㦂᪉ἲ㻌ཎᮦᩱ䜢㻌 㻔㻼㼎㻜㻚㻣㻿㼚㻜㻚㻟㻕㻝㻙㼤㻮㼕㼤 䛾ẚ⋡䛷ィ㔞䞉ΰྜ䛧䚸┿✵ᘬ䛝䛧䛯▼ⱥ⟶୰䛷ຍ⇕䛩䜛䛣䛸䛷㉸ఏᑟ䛿䜣䛰䜢ྜᡂ䛧䛯䚹▼ⱥᆣላ䛾୰䛻ྜᡂ䛧䛯䛿䜣䛰䜢඘ሸ䛧䚸㻠㻜㻜䉝䛾㟁Ẽ⅔୰
䛷⁐⼥䛥䛫䛯䚹⁐⼥䛧䛯䛿䜣䛰䛻 㻺㼎㼀㼕 䛚䜘䜃 㻮㼕㻞㻞㻞㻟 ⥺ᮦ䜢ᤄධ䛧䚸㻠 ᫬㛫䛾ຍ⇕ᚋ䛻⅔෭䛧䛯䚹ᅗ 㻝㻔㼍㻕䛻♧䛩䜘䛖䛻㟁ὶ䞉㟁ᅽ➃Ꮚ䜢௜䛡䚸㻠 ➃Ꮚἲ䜢⏝䛔䛶⮫⏺㟁ὶ್㻌 㻔㻵㼏㻕㻌 䜢ᐃ䛧䛯䚹 ᐃ䛿ᾮయ 㻴㼑 ୰䛷⾜䛳䛯䚹㻌㻌㻟䠊⤖ᯝ䛸᳨ウ㻌ᅗ 㻝㻔㼎㻕䛻 㻺㼎㼀㼕㻙㻮㼕㻞㻞㻞㻟 ᥋ྜ௜㏆䛾᩿㠃཯ᑕ㟁Ꮚീ䜢♧䛩䚹ᅗ䛛䜙䚸⥺ᮦ䜢そ䛳䛶䛔䛯䝅䞊䝇䛿䛿䜣䛰䜈䛸⁐䛡ฟ䛧䚸㉸ఏᑟ䝣䜱䝷䝯䞁䝖䛜䛿䜣䛰䛷┤᥋そ䜟䜜䛶䛔䜛䛣䛸䛜ศ䛛䜛䚹䛣䜜䛻䜘䛳䛶䚸⥺ᮦ㛫䛜㉸ఏᑟᮦᩱ䛷⧅䛜䜜䜛䚹㻌ᅗ 㻞 䛻䛿䚸㻡㻌㼗㻻㼑 䜎䛷䛾☢ሙୗ䛷 ᐃ䛧䛯᥋ྜ㒊 㻵㼏 䛾䛿䜣䛰⤌ᡂ౫Ꮡᛶ䜢♧䛩䚹䝊䝻☢ሙ ᐃ䛷䛿䚸㼤㻩㻜㻚㻞䡚㻜㻚㻤 䛾⠊ᅖ䛷 㻵㼏㻌㻪㻌㻞㻜㻜㻌㻭㻌㻔 ᐃ㝈⏺㻕㻌 䛷䛒䛳䛯䚹䜎䛯䚸㻡㻌㼗㻻㼑 䛾☢ሙୗ䛷䛿 㼤㻩㻜㻚㻟㻘㻜㻚㻠 䛾䛸䛝䛻 㻵㼏㻌 䛜 㻡㻜㻌 㻭 䛷䛒䛳䛯䚹ㅮ₇ᙜ᪥䛿䚸᥋ྜ㒊᩿㠃䛾ᚤ⣽ᵓ㐀䛻䛴䛔䛶䜒Ⓨ⾲䛩䜛䚹㻌
㻌
㻌
ཧ⪃ᩥ⊩㻌
㻝㻚㻌 㻷㻚㻌㻴㼍㼟㼔㼕㻌㼑㼠㻌㼍㼘㻚㻘㻌㻶㻚㻌㻹㼍㼓㼚㻚㻌㻾㼑㼟㼛㼚㻚㻘㻌㻞㻞㻡㻢㻘㻌㻟㻜㻌㻔㻞㻜㻝㻡㻕㻚㻌㻞㻚㻌 㻾㻚㻌 㻹㼍㼠㼟㼡㼙㼛㼠㼛㻌 㼑㼠㻌 㼍㼘㻚㻘㻌 㻭㼜㼜㼘㻚㻌 㻼㼔㼥㼟㻚㻌 㻱㼤㼜㼞㼑㼟㼟㻘㻌 㻝㻜㻘㻌 㻜㻥㻟㻝㻜㻞㻌㻔㻞㻜㻝㻣㻕㻚㻌

150


N2H
1.5
kOe

zero-ﬁeld]HURILHOG

2 kOe
N2H

100


500
Oe
2H

3
kOe
N2H
50


5
kOe
N2H
0

3E
6Q0.3
Pb
0Sn
0.7


0.2


0.4


0.6


[LQ
3E
6Q0.3
x in (PbSn)[%LBi [x 1-x
0.7

0.8


%L
Bi
1




)LJ&ULWLFDOFXUUHQWRIWKHMRLQWXQGHUYDULRXVDSSOLHGPDJQHWLFILHOGVDW.DVDIXQFWLRQRI%L
FRQWHQWV\LQ 3E6Q [%L[― 103 ―

第95回

2017年度秋季低温工学・超電導学会

2B-p03

超電導接続

6U7L2 ༢⤖ᬗᇶᯈࢆ⏝࠸ࡓ 1E ⷧ⭷ࡢ࢚ࣆࢱ࢟ࢩࣕࣝᡂ㛗(SLWD[LDO1EWKLQILOPVRQ6U7L2VLQJOHFU\VWDOVXEVWUDWHV

Nb 220

STO 003

STO 002

Nb 110

STO 001

Resistivity ? (mOcm)
㻾㼑㼟㼕㼟㼠㼕㼢㼕㼠㼥㻌㻔㼙:㼏㼙㻕

Intensity (arb. units)㻌 㧗ᓥ㻌 ᾈ䠈ΎỈ㻌 㞝ᖹ䠈ྜྷ⏣㻌 Ⰻ⾜䠈ྂ℩㻌 ඘✑㻔⏘⥲◊㻕㻌㼀㻭㻷㻭㻿㻴㻵㻹㻭㻌㻴㼕㼞㼛㼟㼔㼕㻘㻌㻿㻴㻵㻹㻵㼆㼁㻌㼅㼡㼔㼑㼕㻘㻌㼅㻻㻿㻴㻵㻰㻭㻌㼅㼛㼟㼔㼕㼥㼡㼗㼕㻘㻌㻲㼁㻾㼁㻿㻱㻌㻹㼕㼠㼟㼡㼔㼛㻌㻔㻭㻵㻿㼀㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼔㻙㼠㼍㼗㼍㼟㼔㼕㼙㼍㻬㼍㼕㼟㼠㻚㼓㼛㻚㼖㼜㻌㻝䠊䛿䛨䜑䛻㻌
㻌㏆ᖺ䚸㧗 ㉸㟁ᑟ⥺ᮦ䛿ḟୡ௦㧗☢ሙ 㻹㻾㻵 ⏝䛾䝁䜲䝹⥺ᮦ䛸䛧䛶䛾฼⏝䛜ᮇᚅ䛥䜜䛶䛔䜛䚹䛭䛾฼⏝䛻㝿䛧䚸せ⣲ᢏ⾡䛸䛧䛶㉸㟁ᑟ᥋⥆ᢏ⾡䛾◊✲㛤Ⓨ䛜άⓎ䛻䛺䛳䛶䛔䜛䚹㧗㉸㟁ᑟ⥺ᮦ䛾᥋⥆䛿䚸୺䛻 㻰㼕㼞㼑㼏㼠 ᥋⥆䛸 㻵㼚㼐㼕㼞㼑㼏㼠 ᥋⥆䛾䠎ᡭἲ䛜ᣲ䛢䜙䜜䜛䠷㻝䠹䚹㻰㼕㼞㼑㼏㼠 ᥋⥆䛾ㄢ㢟䛿䚸᥋⥆⟠ᡤ䛾⤖ᬗ᪉఩䛾ᕪ␗䜔㧗 ⇕ฎ⌮䛻䜘䜛㉸㟁ᑟ≉ᛶ䛾ຎ໬䛜ᣲ䛢䜙䜜䜛䚹ᡃ䚻䛿䚸䝙䜸䝤㻔㻺㼎㻕䜢⏝䛔䛯 㻵㼚㼐㼕㼞㼑㼏㼠㻌 ᥋⥆䛻䜘䜚⥺ᮦ
500 °C䛸䛿␗䛺䜛㉸㟁ᑟⷧ⭷ᮦᩱ䜢௓䛧䛯᥋⥆ᢏ⾡䛾㛤Ⓨ䜢㐍䜑䛶䛔䜛䠷㻞䠹䚹㻌㻺㼎 䛿༢య㔠ᒓ㉸㟁ᑟయ䛸䛧䛶䛿㧗䛔㉸㟁ᑟ㌿⛣ ᗘ㻔㼀㼏㻕䜢♧䛧䚸௚䛾㉸㟁ᑟᮦᩱ䜘䜚Ᏻᐃ䛷ຍᕤᛶ䛻ඃ䜜䚸㉸㟁ᑟ㔞Ꮚᖸ΅ィ㻔㻿㻽㼁㻵㻰㻕䜔㧗㏿༢୍☢᮰㔞Ꮚ㻔㻾㻿㻲㻽㻕ᅇ㊰䛺䛹䛻฼RT⏝䛥䜜䛶䛔䜛㼇㻟㻙㻡㼉䚹䝕䝞䜲䝇ᛂ⏝䛸䛧䛶ⷧ⭷䛜⏝䛔䜙䜜䚸㻺㼎ⷧ⭷䛾㉸㟁ᑟ≉ᛶ䛿ᅛయᇶᯈᮦᩱ䛺䛹ୗᆅᮦᩱ䛾⤖ᬗᛶ
10
20
30
40
50
60
70
80
90
䜔ᖹᆠᛶ䛻኱䛝䛟౫Ꮡ䛩䜛䚹ᮏ◊✲䛷䛿䚸㻵㼚㼐㼕㼞㼑㼏㼠㻌 ᥋⥆ἲ䛻
2?
(deg.)
㻞T㻔㼐㼑㼓㻚㻕䜘䜚㧗 ㉸㟁ᑟ⥺ᮦ䜢᥋⥆䛩䜛䛣䛸䜢┠ⓗ䛸䛧䚸䜎䛪඾ᆺⓗ䛺㻌㧗 ㉸㟁ᑟ⥺ᮦ䛾᱁Ꮚᐃᩘ䛻㏆䛔 㻿㼞㼀㼕㻻㻟㻌 㻔㻜㻜㻝㻕༢⤖ᬗᇶᯈ㻌ୖ䛻 㻺㼎 ⷧ⭷䜢ᡂ⭷䛧䚸⤖ᬗᛶ䚸⾲㠃ᙧ≧䚸㟁Ẽⓗ≉ᛶ䛴䛔㻲㼕㼓㻚㻝㻌 T㻞T㻌㼄㻙㼞㼍㼥㻌㼐㼕㼒㼒㼞㼍㼏㼠㼕㼛㼚㻌㼜㼍㼠㼠㼑㼞㼚㼟㻌㼒㼛㼞㻌㻺㼎㻌㼒㼕㼘㼙㼟㻌㼛㼚㻌㻿㼞㼀㼕㻻㻟㻌䛶ㄪᰝ䜢⾜䛔䚸᥋⥆䛾ྍ⬟ᛶ䛻䛴䛔䛶᳨ウ䜢⾜䛳䛯䛾䛷ሗ㻔㻜㻜㻝㻕㻌㼟㼡㼎㼟㼠㼞㼍㼠㼑㼟㻌
࿌䛩䜛䚹㻌
㻌
㻞䠊ᐇ㦂㻌
0.04
㻺㼎 ⷧ⭷䛿 㻺㼎 䝍䞊䝀䝑䝖㻔⣧ᗘ 㻥㻥㻚㻥㻌㻑㻕䜢⏝䛔䛶 㻾㻲 䝬䜾䝛䝖䝻䞁䝇䝟䝑䝍䝸䞁䜾ἲ䛻䜘䜚⾜䛳䛯䚹ᇶᯈᮦᩱ䛻䛿᱁Ꮚᐃᩘ㻜㻚㻟㻥㻜㻡㼚㼙 䛾 㻿㼞㼀㼕㻻㻟䠄㻜㻜㻝䠅ᇶᯈ䜢⏝䛔䛯䚹㧗 ㉸㟁ᑟ⥺ᮦ䛸䛧
0.03
䛶⏝䛔䜙䜜䛶䛔䜛 㼅㻮㻯㻻 䛸䛾᱁Ꮚ䝭䝇䝬䝑䝏䛿 㻞䠂䛷䛒䜛䠷㻢䠹䚹RTᇶᯈຍ⇕ ᗘ䛿ᐊ 䛛䜙 㻡㻜㻜䉝䛸䛧䚸ᇶᯈຍ⇕䛿䝷䞁䝥ຍ⇕᪉ᘧ䜢⏝䛔䛯䚹䝇䝟䝑䝍䝸䞁䜾䜺䝇䛻䛿 㻭㼞 䜢⏝䛔䛯䚹ᡂ⭷䛧䛯
0.02ⷧ⭷䝃䞁䝥䝹䛾⤖ᬗᛶ䛿 㼄 ⥺ᅇᢡ⿦⨨䜢⏝䛔䛶ホ౯䛧䛯䚹ⷧ⭷⾲㠃䛾พฝ䛿㉮ᰝᆺ䝥䝻䞊䝤㢧ᚤ㙾䜢⏝䛔䛶ほᐹ䛧ホ
500 °C0.01౯䛧䛯䚹䜎䛯䚸ⷧ⭷䛾㟁Ẽ᢬ᢠ⋡䛿≀⌮≉ᛶ ᐃ⿦⨨㻔㻽㼡㼍㼚㼠㼡㼙㻌㻰㼑㼟㼕㼓㼚㻘㻌㻼㻼㻹㻿㻕䜢⏝䛔䛶䚸㻠 ➃Ꮚἲ䛻䜘䜚 ᐃ䛧䛯䚹㻌㻟䠊⤖ᯝ䛸⪃ᐹ㻌
0.00㻲㼕㼓㻚㻌㻝 䛻ᇶᯈ ᗘ䛜ᐊ 䛸 㻡㻜㻜㻌 䉝䚸㻭㼞 䜺䝇ᅽ 㻝㻚㻜㻌㻼㼍 䛷
5
10
15
20
25
30
ᡂ⭷䛧䛯඾ᆺⓗ䛺 㻺㼎 ⷧ⭷䛾 㼄㻾㻰 䝟䝍䞊䞁䜢♧䛩䚹୧⪅䛸䜒Temperature (K)㻌ᇶᯈ䛻⏤᮶䛩䜛䝢䞊䜽௨እ䛻䛿 㻺㼎㻌㻔㼔㼔㻜㻕䛾䝢䞊䜽䛾䜏䛜ฟ⌧㻲㼕㼓㻚㻞㻌㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌㼛㼒㻌㼞㼑㼟㼕㼟㼠㼕㼢㼕㼠㼥㻌䛧䛶䛔䜛䛣䛸䛜ศ䛛䜛䚹䛥䜙䛻཯ᑕ㧗㏿㟁Ꮚ⥺ᅇᢡ㻔㻾㻴㻱㻱㻰㻕䜢㻌⏝䛔䛶ⷧ⭷⾲㠃䛾⤖ᬗᛶ䜢ㄪ䜉䛯⤖ᯝ䚸䝇䝖䝸䞊䜽≧䛾ᅇᢡ䝟䝍䞊䞁䜢ほ 䛧䛯䚹䛣䜜䜙䛾⤖ᯝ䚸㻺㼎 ⷧ⭷䛿㻔㻝㻝㻜㻕᪉఩䛻䜶ㅰ㎡㻌 ᮏ◊✲䛾୍㒊䛿᪂䜶䝛䝹䜼䞊䞉⏘ᴗᢏ⾡⥲ྜ㛤Ⓨᶵ䝢䝍䜻䝅䝱䝹ᡂ㛗䛧䛶䛔䜛䛣䛸䛜ศ䛛䛳䛯䚹䛥䜙䛻䃥䝇䜻䝱䞁䛷ᵓ㻌 㻔㻺㻱㻰㻻㻕㻌 䛾᥼ຓ䛻䜘䜚⾜䜟䜜䛯䚹㻌ⷧ⭷䛾㠃ෆ㓄ྥ䛻䛴䛔䛶ㄪᰝ䛧䛯䚹䛭䛾⤖ᯝ䚸㻥㻜㼻ẖ䛻䝢䞊㻌䜽䛜ほ 䛥䜜䠐ᅇᑐ⛠ᛶ䛜☜ㄆ䛥䜜䛯䚹䛣䜜䛿䚸㻺㼎㻔㼔㼔㻜㻕㠃ෆཧ⪃ᩥ⊩㻌䛷䛿䚸㻌 㻺㼎㼇㻜㻜㻝㼉䛜 㻿㼞㼀㼕㻻㻟㻌 㼇㻝㻜㻜㼉䛸㼇㻜㻝㻜㼉䛻ἢ䛳䛶㓄ྥ䛧䛶䛔䜛㻝㻚 㻳㻚㻰㻚㻌 㻮㼞㼕㼠㼠㼘㼑㼟㻌 㼑㼠㻌 㼍㼘㻚㻘㻌 㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻌 㻿㼏㼕㻚㻌 㼀㼑㼏㼔㼚㼛㼘㻚㻌 㻞㻤㻌 㻔㻞㻜㻝㻡㻕㻌䛣䛸䛻㉳ᅉ䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹ⷧ⭷䛾ᖹᆠᛶ䛻䛴䛔䛶ཎᏊ㻜㻥㻟㻜㻜㻝㻚㻌
㛫ຊ㢧ᚤ㙾㻔㻭㻲㻹㻕ീ䛷☜ㄆ䛧䛯⤖ᯝ䚸ᇶᯈ䛾㼇㻝㻜㻜㼉㻘㻌 㼇㻜㻝㻜㼉᪉㻞㻚ΎỈ㞝ᖹ䚸㧗ᓥᾈ䚸ྜྷ⏣㻌 Ⰻ⾜䠈ྂ℩㻌 ඘✑䚸➨㻌 㻣㻤㻌 ᅇᛂྥ䛻ἢ䛳䛯⥙┠≧ᵓ㐀䜢☜ㄆ䛧䚸ᖹᆒ㠃⢒䛥䠄㻾㼍䠅䛿 㻝㻚㻜㼚㼙⏝≀⌮Ꮫ఍Ꮫ⾡ㅮ₇఍ண✏㞟㻔㻞㻜㻝㻣㻌 ⛅㻕㻌 㼇㻣㼜㻙㻿㻠㻟㻙㻝㻞㼉㻌๓ᚋ䛷䛒䜛䛣䛸䛜ศ䛛䜚䚸ᴟ䜑䛶ᖹᆠ䛺ⷧ⭷䛷䛒䜛䛣䛸䛜ศ䛛㼜㻚㻝㻜㻙㻝㻢㻝㻚㻌 㻌䛳䛯䚹㻲㼕㼓㻚㻞 䛻᢬ᢠ⋡䛾 ᗘ౫Ꮡᛶ䜢♧䛩䚹ᐊ ᡂ⭷䚸㻡㻜㻜䉝㻟㻚 㻿㻚㻌㻷㼛㼔㼖㼕㼞㼛㻌㼑㼠㻌㼍㼘㻚㻘㻌㻶㻚㻌㻭㼜㼜㼘㻚㻌㻼㼔㼥㼟㻚㻌㻝㻝㻡㻌㻔㻞㻜㻝㻠㻕㻌㻞㻞㻟㻥㻜㻞㻚㻌ᡂ⭷䛾ⷧ⭷䛷䚸㉸㟁ᑟ㌿⛣Ⅼ䛜 㻤㻚㻜㻌㻷 䛸 㻤㻚㻢㻌㻷 䛷䛒䜛䛣䛸䛜ศ㻠㻚 㻷㻚㻌 㼅㼛㼗㼛㼟㼍㼣㼍㻘㻌 㻿㻚㻌 㻷㼡㼞㼕㼗㼕㻘㻌 㻾㼑㼢㻚㻌 㻿㼏㼕㻚㻌 㻵㼚㼟㼠㼞㼡㼙㻚㻌 㻢㻡㻌 㻔㻝㻥㻥㻠㻕㻌䛛䛳䛯䚹඾ᆺⓗ䛺㧗 ㉸㟁ᑟ⥺ᮦ䛿㧗 䝥䝻䝉䝇䛻䜘䛳䛶㉸㟁ᑟ≉ᛶ䛾ຎ໬䛜⏕䛨䜛䚹䛭䛾䛯䜑㉸㟁ᑟ᥋⥆ᢏ⾡䛿ᐊ㻟㻤㻝㻠㻙㻟㻤㻝㻥㻚㻌䛷䛾඲䝥䝻䝉䝇䛜⌮᝿䛷䛒䜛䚹ᮏ◊✲䛷䛿䚸㻺㼎 䜶䝢䝍䜻䝅䝱㻡㻚 㻹㻚㻌㻹㼍㼑㼦㼍㼣㼍㻌㼑㼠㻌㼍㼘㻚㻘㻌㻼㼔㼥㼟㼕㼏㼍㻌㻯㻌㻠㻝㻞㻙㻠㻝㻠㻌㻔㻞㻜㻜㻠㻕㻌㻝㻡㻥㻝㻚㻌䝹ⷧ⭷䛾స〇䛻䛚䛔䛶䚸඾ᆺⓗ䛺㧗 ㉸㟁ᑟ⥺ᮦ䛾᱁Ꮚᐃ㻢㻚 㻴㻚㻌 㼀㼍㼗㼍㼟㼔㼕㼙㼍㻌 㼑㼠㻌 㼍㼘㻚㻘㻌 㻭㼜㼜㼘㼕㼑㼐㻌 㻼㼔㼥㼟㼕㼏㼟㻌 㻸㼑㼠㼠㼑㼞㼟㻘㻌㻤㻟㻌 㻔㻞㻜㻜㻟㻕㻌ᩘ䛻㏆䛔 㻿㼞㼀㼕㻻㻟䠄㻜㻜㻝䠅ᇶᯈୖ䛻ᐊ ᡂ⭷䛷 㼀㼏䠙㻤㻚㻜㻌 㻷 䛜ᐇ㻞㻤㻤㻟㻚㻌
⌧䛷䛝䛯䚹䛣䛾⤖ᯝ䚸㻺㼎 ⷧ⭷䛜 㼅㻮㻯㻻 䜶䝢䝍䜻䝅䝱䝹ⷧ⭷ୖ䛻䚸ᐊ ᡂ⭷䛷䜶䝢䝍䜻䝅䝱䝹ᡂ㛗䛩䜛ྍ⬟ᛶ䛜䛒䜚䚸㻵㼚㼐㼕㼞㼑㼏㼠㻌 ᥋⥆ἲ䛻᭷ຠ䛷䛒䜛ྍ⬟ᛶ䜢ぢฟ䛧䛯䚹㻌― 104 ―

第95回

2017年度秋季低温工学・超電導学会

2B-p04

超電導接続㏣ຍሁ✚⭷ࡢⷧ⭷ᡂ㛗ࢆ฼⏝ࡋࡓ 5(%&2 ⥺ᮦࡢ㉸ఏᑟ᥋⥆㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼖㼛㼕㼚㼠㻌㼛㼒㻌㻾㻱㻮㻯㻻㻌㼏㼛㼍㼠㼑㼐㻌㼏㼛㼚㼐㼡㼏㼠㼛㼞㻌㼎㼥㻌㼏㼞㼥㼟㼠㼍㼘㼘㼕㼦㼍㼠㼕㼛㼚㻌㼛㼒㻌㼍㼐㼐㼕㼠㼕㼛㼚㼍㼘㼘㼥㻌㼐㼑㼜㼛㼟㼕㼠㼑㼐㻌㼜㼞㼑㼏㼡㼞㼟㼛㼞㻌㼘㼍㼥㼑㼞㼟㻌㻌ᑎす㻌 ு㻘㻌 ᐑᓥ཭༤䠈ᖹᯇ࿴ᘺ䠈బ⸨ᖾ⏕䠈㔠Ꮚ㈼἞䠄஑ᕞ኱Ꮫ䠅䠗୰ᮧ⨾ᖾ㻘㻌㼂㼍㼘㼑㼞㼥㻌㻼㼑㼠㼞㼥㼗㼕㼚㻘㻌㻿㼑㼞㼓㼑㼥㻌㻸㼑㼑䠄㻿㼡㼜㼑㼞㻻㼤㻌㻶㼍㼜㼍㼚䠅䠗㻌㻌 ῐ㊰ᬛ䠄ᮾ໭኱Ꮫ䠅㻌㼀㻱㻾㻭㻺㻵㻿㻴㻵㻌㻾㼥㼛㻘㻌㻹㻵㼅㻭㻶㻵㻹㻭㻌㼀㼛㼙㼛㼔㼕㼞㼛㻘㻌㻴㻵㻾㻭㻹㻭㼀㻿㼁㻌㻷㼍㼦㼡㼥㼍㻘㻌㻿㻭㼀㻻㻌㼅㼡㼗㼕㼛㻘㻌㻷㻭㻺㻱㻷㻻㻌㻷㼑㼚㼖㼕㻌㻔㻷㼥㼡㼟㼔㼡㻌㼁㼚㼕㼢㻚㻕㻧㻌㻺㻭㻷㻭㻹㼁㻾㻭㻌㻹㼕㼥㼡㼗㼕㻘㻌㻼㻱㼀㻾㼅㻷㻵㻺㻌㼂㼍㼘㼑㼞㼥㻘㻌㻸㻱㻱㻌㻿㼑㼞㼓㼑㼥㻌㻔㻿㼡㼜㼑㼞㻻㼤㻌㻶㼍㼜㼍㼚㻕㻧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㻌㻱㻙㼙㼍㼕㼘㻦㻌㼠㼑㼞㼍㼚㼕㼟㼔㼕㻬㼦㼍㼕㼗㼛㻚㼗㼥㼡㼟㼔㼡㻙㼡㻚㼍㼏㻚㼖㼜㻌㻌㻌㻌㻝䠊䛿䛨䜑䛻㻌
㟁ຊᶵჾᛂ⏝䜢┠ᣦ䛧䛯 㻾㻱㻮㼍㻞㻯㼡㻟㻻㼥䠄㻾㻱㻮㻯㻻䠅⥺ᮦ䛾㛗ᑻ໬䛻䛿䚸⥺ᮦ䛾༢⥺㛗ᑻ໬䛾䜏䛺䜙䛪⥺ᮦ䛾᥋⥆ᢏ⾡䛾㛤Ⓨ䛜୙ྍḞ䛷䛒䜛䚹⥺ᮦ䜢᥋⥆䛩䜛㝿䛾せồ㡯┠䛻䚸㧗䛔
㏻㟁ᛶ⬟㻔㻵㼏䚸㻵㼏㻙㻮㻕䚸ᶵჾᛂ⏝䛻ᛂ䛨䛯⥺ᮦ᥋⥆㒊䛾ᙧ≧ไᚚᛶ䚸㧗䛔ᶵᲔᙉᗘ䚸䝥䝻䝉䝇䛾⡆᫆໬䛺䛹䛜ᣲ䛢䜙䜜䜛䚹≉䛻䚸㧗䛔㏻㟁ᛶ⬟䜢ᚓ䜛䛻䛿⥺ᮦ䜢ప᢬ᢠ䛷᥋⥆䛩䜛䛣䛸䛜ᚲせ䛷䛒䜚䚸䛭䛾䛯䜑䛻䛿⥺ᮦ䛾㉸ఏᑟᒙྠኈ䜢᥋⥆䛩䜛䛣䛸䛜᭷⏝䛷䛒䜛䚹䜎䛯䚸᥋⥆䝥䝻䝉䝇䛾⌧㇟䛾⌮ゎ䜔ᢏ⾡䛾
Ⓨᒎ䛻䛿䚸ᵝ䚻䛺ᡭἲ䛻䜘䜛䜰䝥䝻䞊䝏䛜ຠᯝⓗ䛷䛒䜛䚹䛣䜜䜎䛷䚸䛔䛟䛴䛛䛾ᡭἲ䛻䜘䜛㉸ఏᑟᒙྠኈ䛾᥋⥆䛜ሗ࿌䛥䜜䛶䛔䜛㼇㻝㻙㻠㼉䚹ᡃ䚻䛿 㻾㻱㻮㻯㻻 ⥺ᮦୖ䛻㏣ຍሁ✚⭷䜢స〇䛧䚸䛭䜜䜙䜢ᑐྥ䛥䛫䛶⇕ฎ⌮䛩䜛ᡭἲ䛻䜘䜚㏣ຍ⭷䜢⤖ᬗ໬䛧䛶᥋⥆య䜢స〇䛧䛶䛔䜛㼇㻡㼉䚹ᮏ◊✲䛷䛿䚸᥋⥆⏺㠃䛾ᚤ⣽⤌⧊䜢ほᐹ䛧䚸ᮏἲ䛾ㄢ㢟䜢᳨ウ䛧䛯䚹㻌㻌㻞䠊ᐇ㦂᪉ἲ㻌㻵㻮㻭㻰 ⥺ᮦୖ䛻స〇䛧䛯 㻳㼐㻮㻯㻻 ⷧ⭷ୖ䛻䝟䝹䝇䝺䞊䝄䞊⵨╔ἲ䛻䛶 㻳㼐䚸㻌 㻮㼍䚸㻯㼡 䛾㓟໬≀ᚤ⤖ᬗ䛛䜙䛺䜛㏣ຍሁ✚⭷䜢స〇䛧䚸஧䛴䛾ヨᩱ䜢ᑐྥ䛥䛫䛶⥺ᮦᖜ 㻢㻌 㼙㼙䚸㛗䛥 㻡㻌㼙㼙 䛾㡿ᇦ䛷㔜䛽ྜ䜟䛫䚸㻝㻜㻌㻹㻼㼍 䛷ຍᅽ䛧䛺䛜䜙 㻝㻜㻥㻟㻌㻷 䛷⤖ᬗ໬䛧䛶᥋⥆య䜢ᚓ䛯䚹䛭䛾ᚋ䚸ヨᩱ䜢㓟⣲୰䛷 㻣㻣㻟㻌㻷 䛻䛶䜰䝙䞊䝹ฎ⌮䛧䚸㻠 ➃Ꮚἲ䛻䛶᥋⥆㒊䛾㉸ఏᑟ㌿⛣ ᗘ㻔㼀㼏㻕䜢 ᐃ䛧䛯䚹䜎䛯䚸ヨᩱ᥋⥆㒊䛾᩿㠃⤌⧊䜢㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾㻌 㻔㼀㻱㻹䠅䛻䛶ほᐹ䛧䛯䚹㻌㻌㻟䠊⤖ᯝ䛸⪃ᐹ㻌㓟⣲䜰䝙䞊䝹ᚋ䛾ヨᩱ᥋⥆㒊䛻䛚䛡䜛㟁Ẽ᢬ᢠ䛾 ᗘ౫Ꮡᛶ䜢 㻲㼕㼓㻚㻝㻔㼍㻕䛻♧䛩䚹᢬ᢠ್䛿 ᗘ䛾పୗ䛸䛸䜒䛻పୗ䛧䚸㻥㻠㻌㻷 䛛䜙 㻥㻟㻌㻷 䛾㛫௜㏆䛷୍ẁ㝵┠䛾ᛴ⃭䛺పୗ䛜ほᐹ䛥䜜䚸䛭䛾ᚋ䚸㻥㻟㻌 㻷 䛛䜙 㻥㻜㻌 㻷 䛻䛛䛡䛶஧ẁ㝵┠䛾పୗ䛜ほᐹ䛥䜜䛯䚹䛣䜜䜙஧䛴䛾ẁ㝵䛿䚸䛭䜜䛮䜜⥺ᮦ䛾㠀᥋⥆㒊䛚䜘䜃᥋⥆㒊䛻㉳ᅉ䛧䛯᢬ᢠ್䛾ኚ໬䛷䛒䜛䛸⪃䛘䜙䜜䚸㻥㻜㻚㻤㻌㻷 䛷䝉䝻᢬ᢠ䜢♧䛧䛯䚹ྠᅗ୰䛻♧䛧䛯ᚓ䜙䜜䛯ヨᩱ䛾እほ㻌෗┿䛛䜙䛿䚸஧䛴䛾ヨᩱ䛜ᐦ╔ᛶⰋ䛟᥋⥆䛧䛶䛔䜛ᵝᏊ䛜ほ㻌ᐹ䛥䜜䜛䚹㻌
㻲㼕㼓㻚㻌 㻝㻌 㻌 㻔㼍㻕㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌 㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌 㼛㼒㻌 㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌 㼛㼒㻌㻲㼕㼓㻚㻌㻝㻔㼎㻕㻌 䛻᥋⥆య䛾᥋⥆⏺㠃㒊ศ䛾᩿㠃 㼀㻱㻹 ീ䜢♧䛩䚹㼖㼛㼕㼚㼑㼐㻌㼟㼍㼙㼜㼘㼑㻌㼍㼚㼐㻌㻔㼎㻕㼏㼞㼛㼟㼟㻙㼟㼑㼏㼠㼕㼛㼚㼍㼘㻌㼀㻱㻹㻌㼕㼙㼍㼓㼑㻌㼛㼒㻌㼠㼔㼑㻌෗┿ୖୗ᪉ྥ䛾䜋䜌୰ኸ䛻Ⅼ⥺䛷♧䛧䛯㒊ศ䛜᥋⥆⏺㠃䛸㼖㼛㼕㼚㼑㼐㻌 㼍㼞㼑㼍㻚㻌 㻼㼔㼛㼠㼛㼓㼞㼍㼜㼔㻌 㼛㼒㻌 㼠㼔㼑㻌 㼖㼛㼕㼚㼑㼐㻌 㼟㼍㼙㼜㼘㼑㻌 㼣㼍㼟㻌 㻌ุ᩿䛥䜜䛯䚹ⓑ䛔䝁䞁䝖䝷䝇䝖䛷ほᐹ䛥䜜䜛㒊ศ䛿✵㝽䛷䛒䜛㼟㼔㼛㼣㼚㻌㼕㼚㻌㼒㼕㼓㼡㼞㼑㻔㼍㻕㻚㻌䛸⪃䛘䜙䜜䚸⏺㠃㒊ศ䛻䛚䛔䛶ᖹ㠃᪉ྥ䛻ᩘⓒ 㼚㼙 ⛬ᗘ䛾✵㻌㝽䛜䜟䛪䛛䛻ほᐹ䛥䜜䛯䚹䛭䛾୍᪉䚸᥋⥆⏺㠃䛷➨஧┦ᯒཧ⪃ᩥ⊩㻌ฟ≀䛿ほᐹ䛥䜜䛺䛛䛳䛯䚹䛣䛾䛣䛸䛛䜙䚸ほᐹ䛧䛯⠊ᅖ䛻䛚䛔㼇㻝㼉㼅㻚㻌 㻶㻚㻌 㻼㼍㼞㼗㻌 㼑㼠㼍㼘㻚㻘㻌 㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻌 㻿㼏㼕㻚㻌 㼀㼑㼏㼔㼚㼛㼘㻚㻘㻌 㻞㻣㻌 㻔㻞㻜㻝㻠㻕㻌䛶䛿✵㝽௨እ䛾䜋䜌඲ᇦ䛻䜟䛯䛳䛶஧䛴䛾⥺ᮦ䛜ᐦ╔䛧䛶㻤㻡㻜㻜㻤㻚㻌
䛔䜛䛣䛸䛜♧䛥䜜䛯䚹㏣ຍሁ✚⭷䜢㍕䛫䛯஧䛴䛾⥺ᮦ䜢ᑐྥ㼇㻞㼉㼄㻚㻌㻶㼕㼚㻌㼑㼠㼍㼘㻚㻘㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻌㻿㼏㼕㻚㻌㼀㼑㼏㼔㼚㼛㼘㻚㻘㻌㻞㻤㻌㻔㻞㻜㻝㻡㻕㻌㻣㻡㻜㻝㻜㻚㻌䛥䛫䛶⇕ฎ⌮䛩䜛䛣䛸䛻䜘䛳䛶䚸䛭䜜䛮䜜䛾ヨᩱ䛻䛚䛔䛶䛿㼇㻟㼉㻲㼡㼞㼡㼗㼍㼣㼍㻱㼘㼑㼏㼠㼞㼕㼏㼣㼑㼎㼟㼕㼠㼑㻦㻌ୗᒙ䛛䜙䜶䝢䝍䜻䝅䝱䝹ᡂ㛗䛧䚸䜎䛯᥋⥆㒊䛻䛚䛔䛶䛿୧ヨ㼔㼠㼠㼜㼟㻦㻛㻛㼒㼡㼞㼡㼗㼍㼣㼍㻚㼏㼛㻚㼖㼜㻛㼞㼑㼘㼑㼍㼟㼑㻛㻞㻜㻝㻢㻛㼗㼑㼚㼗㼍㼕㼋㻝㻢㻜㻠㻞㻣㻚㼔㼠㼙㼘㻌ᩱ㛫䛷ᅛ┦ᣑᩓ䛜༑ศ䛻㐍⾜䛧䛯䜒䛾䛸᥎ᐹ䛥䜜䚸䛣䛾䛣䛸㼇㻠㼉㻷㻚㻌㻻㼔㼗㼕㻌㼑㼠㼍㼘㻚㻘㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻌㻿㼏㼕㻚㻌㼀㼑㼏㼔㼚㼛㼘㻚㻘㻌㻟㻜㻌㻔㻞㻜㻝㻣㻕㻌㻝㻝㻡㻜㻝㻚㻌䛜㧗䛔 㼀㼏 䜢♧䛧䛯せᅉ䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹ᑦ䚸᥋⥆⏺㠃䛻㼇㻡㼉㻷㻚㻌㻴㼕㼞㼍㼙㼍㼠㼟㼡㻌㼑㼠㼍㼘㻚㻘㻌㻼㼔㼥㼟㼕㼏㼟㻌㻼㼞㼛㼏㼑㼐㼕㼍㻘㻌㻤㻝㻌㻔㻞㻜㻝㻢㻕㻌㻝㻜㻥㻚㻌䛶ほᐹ䛥䜜䛯✵㝽䛿䚸᥋⥆๓䛾ヨᩱ⾲㠃䛾พฝ䛻㉳ᅉ䛩䜛㻌䛸⪃䛘䜙䜜䜛䚹㻌

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第95回

2017年度秋季低温工学・超電導学会

2B-p05

超電導接続

㻯㻶㻹㻮 ἲ䛻䜘䜛 㻳㼐㻝㻞㻟 ⥺㛫䛾㉸ఏᑟ᥋ྜ䛾⮫⏺㟁ὶ㻌㻯㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼛㼒㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼖㼛㼕㼚㼠㻌㼎㼑㼠㼣㼑㼑㼚㻌㻳㼐㻝㻞㻟㻌㼏㼛㼍㼠㼑㼐㻌㼏㼛㼚㼐㼡㼏㼠㼛㼞㼟㻌㼎㼥㻌㻯㻶㻹㻮㻌㼙㼑㼠㼔㼛㼐㻌㻌㔠㻌 ᪂ဴ䠄ᐊᕤ኱䠅㻧㻌 ᰗ⃝㻌 ྜྷ⣖㻘㻌 ๓⏣㻌 ⚽᫂䠄⌮◊䠅㻌㼄㼕㼚㼦㼔㼑㻌㻶㼕㼚㻌㻔㻹㼡㼞㼛㼞㼍㼚㻙㻵㼀㻚㻕㻧㻌㼅㼛㼟㼔㼕㼚㼛㼞㼕㻌㼅㼍㼚㼍㼓㼕㼟㼍㼣㼍㻘㻌㻴㼕㼐㼑㼍㼗㼕㻌㻹㼍㼑㼐㼍㻌㻔㻾㻵㻷㻱㻺㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼟㼔㼕㼚㼋㼗㼕㼚㻬㼙㼙㼙㻚㼙㼡㼞㼛㼞㼍㼚㻙㼕㼠㻚㼍㼏㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
㻾㻱㻝㻞㻟 㧗 ㉸ఏᑟ⥺ᮦ㛫䛾㉸ఏᑟ᥋ྜ䛻䛴䛔䛶䚸ᡃ䚻䛿⁐⼥䝞䝹䜽ᡂ㛗ἲ䠄㻯㻶㻹㻮 ἲ䠅㼇㻝㼉䜢ᥦ᱌䛧䚸䛣䜜䜎䛷᥋ྜヨᩱ䛾⮫⏺㟁ὶ䛸ᘬᙇᙉᗘ䛚䜘䜃✵Ẽ୰䛷䛾⤒᫬Ᏻᐃᛶ䛺䛹䛾 ᐃホ౯䜢⾜䛳䛯䚹௒ᅇ䛿᥋ྜయ䛾⮫⏺㟁ὶ䛻╔┠䛧䚸⁐⼥䝞䝹䜽ᡂ㛗ἲ䛻䛚䛡䜛⮫⏺㟁ὶ䛾≉ᚩ䛸㛵㐃せ⣲䛚䜘䜃ᨵၿྍ⬟ᛶ䛻䛴䛔䛶ㄪ䜉䛯䛾䛷ሗ࿌䛩䜛䚹㻌㻌㻞䠊᥋ྜ䛻䛚䛡䜛⁐⼥䝞䝹䜽ᡂ㛗ἲ䛸ᚑ᮶䛾 㻾㻱㻝㻞㻟 ༢⤖ᬗ䝞䝹䜽స〇ἲ䛸䛾㐪䛔㻌䝞䝹䜽䛾◊✲ศ㔝䛷䛿⤖ᬗᡂ㛗䛻䜘䜚䝞䝹䜽඲య䜢༢⤖ᬗ䛻䛩䜛䛣䛸䜢⪃䛘䛶䛔䜛䛜䚸⁐⼥䝞䝹䜽ᡂ㛗ἲ䛿⏺㠃䛾⤖ᬗᡂ㛗䛻䜘䜚⥺ᮦ䜢᥋ྜ䛩䜛䛣䛸䛜┠ⓗ䛷䛒䜛䛯䜑䚸䝞䝹䜽⾲㠃䛾䜏䜢ᡂ㛗䛥䛫䛶䜒᥋ྜ䛿䛷䛝䜛䚹䛧䛛䛧䚸㓄ྥᛶ䛜䛺䛡䜜䜀⏺㠃䛾⮫⏺㟁ὶ䛜⥺ᮦ䜘䜚㝆ୗ䛧䛶䛧䜎䛖䛾䛷ᑐ⟇䛜ᚲせ䛷䛒䜛䚹䛺䛚䚸㻾㻱㻝㻞㻟 ⥺ᮦ䛿᥋ྜ᫬䛾㧗 ຍ⇕䛻䜘䜚㔠ᒓᇶᯈ䛜ᚎ䚻䛻↝ᦆ䛧䛶䛔䛟䛯䜑䚸ᩘ᫬㛫௨ෆ䛷⇕ฎ⌮䜢⾜䛖ᚲせ䛜䛒䜚䚸䝞䝹䜽䛾◊✲ศ㔝䛷㏻ᖖ⾜䜟䜜䛶䛔䜛ໟᬗ཯ᛂ䛻䜘䜛ᩘ᪥௨ୖ䛾ᚎ෭ฎ⌮䛿㐺⏝䛷䛝䛺䛔䚹䛭䛣䛷䚸⁐⼥䝞䝹䜽ᡂ㛗ἲ䛷䛿ᾮ┦ᡂ㛗䜢฼⏝䛧䚸㻾㻱㻝㻞㻟 䛜ศゎ⁐⼥ᚋ䛻⏕ᡂ䛥䜜䛯ᾮయ䛛䜙䛾ྛ⤌ᡂඖ⣲䛾ศᏊ䞉ཎᏊ䜢ཎᮦᩱ䛸䛧䛶㻾㻱㻝㻞㻟 ┦䜢෌⤖ᬗ䛥䛫䛶䛔䜛䚹ศゎ⁐⼥䛧䛯ᅛయ䛾㠀㉸ఏᑟ┦䛿䛭䛾䜎䜎䝞䝹䜽䛻ṧ␃䛩䜛䛜䚸⮫⏺㟁ὶ䛾☢ሙ౫Ꮡᛶ䛻䛚䛔䛶䛿䝢䞁ຊ䛻ᐤ୚䛩䜛䛣䛸䛸⪃䛘䜛䛾䛷䚸୍ᐃ䛾㉸ఏᑟ┦䛜ᅇ᚟䛷䛝䜜䜀䛒䜛⛬ᗘ䛾⮫⏺㟁ὶ䛿ᚓ䜙䜜䜛䚹䛣䜜䜎䛷䛾ᐇ㦂◊✲䛷䛿⣙ 㻡㻜㻑௨ୖ䛾㉸ఏᑟ┦䛜ᅇ᚟䛷䛝䚸⮫⏺
㟁ὶ䛿 㻣㻭 ⛬ᗘ䛻ᨵၿ䛷䛝䛯䚹㻌㻌㻟䠊㐺ษ䛺᥋ྜ㠃✚䛸⮫⏺㟁ὶ䛻㛵䛩䜛ᐇ㦂ホ౯㻌㻾㻱㻝㻞㻟 䝔䞊䝥㠃㛫䛾᥋ྜ䛿䚸㛗䛟᥋ྜ䛩䜜䜀኱䛝䛺㠃✚䛜ྲྀ䜜䜛䛜䚸ከ䛟䛾ᐇ㦂ホ౯䛾⤖ᯝ䚸㟁ὶ䝟䝇䛻䛺䜜䜛᭷ຠ䛺᥋ྜ㠃✚䛿㝈⏺䛜䛒䜛䛣䛸䛜ࢃ࠿ࡗࡓࠋ䛺䛚䚸㐃⥆䛧䛯᥋ྜ⏺㠃䜢」ᩘ䛻ศ㞳䛩䜜䜀᥋⥆ヨᩱ䛾⮫⏺㟁ὶ䛜ྥୖ䛩䜛䛣䛸䜒ぢฟ䛧䛯䚹౛䛘䜀䚸୍⟠ᡤ䛾⏺㠃䛾⮫⏺㟁ὶ䛜 㻣㻭 䛷䛒䜜䜀䚸୕⟠ᡤ䛾⏺㠃䛿䛭䛾 㻟 ಸ⛬ᗘ䛻䛺䜛䚹㻲㼕㼓㻌㻝 䛿䛭䛾ᐇ㦂䛾⤖ᯝ䜢♧䛩䚹䛣䛾䜘䛖䛺」ᩘ⏺㠃䜢฼⏝䛧䛯᥋ྜ᪉ἲ䛻䜘䜚䚸⮫⏺㟁ὶ䜢኱䛔䛻ྥୖ䛷䛝䜛䛜䚸䛣䜜䜒㝈⏺䛜䛒䜛䚹⯆࿡῝䛔䛾䛿䛣䛾㝈⏺䛜⥺ᮦ䛾䜏䛻౫Ꮡ䛩䜛≉ᚩ䛜䛒䜚䚸᥋ྜฎ⌮ᚋ䛻⥺ᮦ䛾⮫⏺㟁ὶ䜢ඖ䛻ᅇ᚟䛷䛝䜜䜀䚸ከᩘ䛾⏺㠃䜢⏝䛔䜛䛣䛸䛻䜘䜚༑ศ䛺᥋ྜ㒊䛾⮫⏺㟁ὶ䛜ᚓ䜙䜜䜛䛣䛸䛻䛺䜛䚹䛧䛛䛧䚸⌧ᅾ䛿᥋ྜ䛾⇕ฎ⌮ᚋ䛻⥺ᮦ䜢ඖ䛸䛚䜚䛻⮫⏺㟁ὶ䜢ᅇ᚟䛩䜛䛣䛸䛿䛷䛝䛶䛔䛺䛔䛾䛷䚸௒ᚋ䛾ㄢ㢟䛷䛒䜛䚹㻌ᐇ㦂䛷౑⏝䛧䛯⥺ᮦ䛿ఫ཭㟁ᕤ〇䛾ᖜ 㻠㼙㼙 䛾⮫⏺㟁ὶ㻞㻝㻜㻭䠄㻣㻣㻷䠅⛬ᗘ䛾䝍䜲䝥䛷䛒䜚䚸᥋ྜ፹య䛿 㼅㼎㻝㻞㻟 ከ⤖ᬗ䜢⏝䛔䛯䚹᥋ྜ㠃✚䛾ቑຍ䛿䚸⏺㠃䛾ᖜ䜢୍ᐃ䛻䛧䚸᥋ྜ㛗䛥䜢ኚ䛘䜛䛣䛸䛷䚸᥋ྜ㠃✚䛾⮫⏺㟁ὶ䜈䛾౫Ꮡᛶ䛻䛴䛔䛶ㄪ䜉䛯䚹㻌స〇䛧䛯 㻟 䛴䛾᥋ྜ⏺㠃䜢᭷䛩䜛ヨᩱ䛾ᙧ≧䜢 㻲㼕㼓㻚㻌 㻞 䛻♧䛧䛯䚹㟁ὶ䛿䛭䜜䛮䜜䛾⏺㠃䜢ศᒱⅬ䛸䛧䛶ศὶ䛥䜜䚸඲యⓗ䛻䛿୪ิᅇ㊰䛸䛺䜛䚹᥋ྜ䛧䛯䝃䞁䝥䝹䛿㓟⣲୰䛷༑᫬㛫䜰䝙䞊䝹䛧䚸ᾮయ❅⣲ ᗘ䛷㟁Ẽ≉ᛶ䛾 ᐃ䜢⾜䛳䛯䚹㻌㻌)LJ&ULWLFDOFXUUHQWRIMRLQWZLWKPXOWLSOH
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)LJ-RLQWFRQILJXUDWLRQXVLQJWKUHHMXQFWLRQV㻌㻠䠊⤖ᯝ㻌」ᩘ⏺㠃䛻䜘䜛᥋ྜ᪉ἲ䛿⁐⼥䝞䝹䜽ᣑᩓἲ䛾䜏䛷䛿䛺䛟䚸௚䛾᪉ἲ䠄ᣑᩓἲ䛺䛹䠅䛻䜒ే⏝ྍ⬟䛷䛒䜚䚸⮫⏺㟁ὶ䜢ྥୖ䛩䜛᭷ຠ䛺᪉ἲ䛾୍䛴䛷䛒䜛䚹䜘䜚኱䛝䛺⮫⏺㟁ὶ䜢ᅇ᚟䛩䜛䛻䛿䚸᥋ྜฎ⌮ᚋ䛻⥺ᮦ䛾⮫⏺㟁ὶ䜢ඖ䛻ᅇ᚟䛩䜛䛣䛸䛜㔜せ䛷䛒䜛䚹㻌㻌㻡䠊ㅰ㎡㻌ᮏ◊✲䛿ᖹᡂ㻞㻤ᖺᗘ䛛䜙䝇䝍䞊䝖䛧䛯ᩥ㒊⛉Ꮫ┬༟㉺◊✲ဨ஦ᴗ䠄ㄢ㢟㻵㻰䠖㻝㻢㻤㻝㻜㻞㻝㻜䠅䛾୍⎔䛸䛧䛶ᐇ᪋䛧䛯䚹㻌㻌ཧ⪃ᩥ⊩㻌㼇㻝㼉㻌 㼄㼕㼚㼦㼔㼑㻌 㻶㼕㼚㻘㻌 㼅㼛㼟㼔㼕㼚㼛㼞㼕㻌 㼅㼍㼚㼍㼓㼕㼟㼍㼣㼍㻘㻌 㻴㼕㼐㼑㼍㼗㼕㻌 㻹㼍㼑㼐㼍㻌 㼍㼚㼐㻌㼅㼛㼟㼔㼕㼗㼕㻌㼀㼍㼗㼍㼚㼛㻘㻌㻎㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㼍㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼖㼛㼕㼚㼠㻌㼎㼑㼠㼣㼑㼑㼚㻌 㼍㻌 㻳㼐㻮㼍㻞㻯㼡㻟㻻㻣㻙䃓㻙㼏㼛㼍㼠㼑㼐㻌 㼏㼛㼚㼐㼡㼏㼠㼛㼞㻌 㼍㼚㼐㻌㼅㻮㼍㻞㻯㼡㻟㻻㻣㻙䃓㻌 㼎㼡㼘㼗㻦㻌 㼠㼛㼣㼍㼞㼐㼟㻌 㼍㻌 㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌 㼖㼛㼕㼚㼠㻌㼎㼑㼠㼣㼑㼑㼚㻌㻾㻱㻌㻔㻾㼍㼞㼑㻌㻱㼍㼞㼠㼔㻕㻌㻮㼍㻞㻯㼡㻟㻻㻣䌦䃓㻙㼏㼛㼍㼠㼑㼐㻌㼏㼛㼚㼐㼡㼏㼠㼛㼞㼟㻎㻘㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼛㼞㻌㻿㼏㼕㼑㼚㼏㼑㻌㼍㼚㼐㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼥㻌㻞㻞㻤㻌㻔㻞㻜㻝㻡㻕㻌㻜㻣㻡㻜㻝㻜㻌㻔㻢㼜㼜㻕㻌
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第95回

2017年度秋季低温工学・超電導学会