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Development of defect repair method of superconducting film with damage of scratch

Research Project

Project/Area Number 19K22157
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 31:Nuclear engineering, earth resources engineering, energy engineering, and related fields
Research InstitutionKyushu University

Principal Investigator

Teranishi Ryo  九州大学, 工学研究院, 教授 (70415941)

Project Period (FY) 2019-06-28 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Keywords酸化物超伝導 / 線材 / 薄膜 / 結晶配向 / 接合 / 熱処理 / 機械的圧力 / 微細組織 / 超伝導体 / 結晶成長 / 固相拡散 / 生成相 / 微構造解析 / 結晶方位 / 酸化物 / 酸化物超伝導薄膜 / 結晶化熱処理 / 通電性能 / 補修
Outline of Research at the Start

REBa2Cu3Oy(RE:希土類)超伝導薄膜線材は、液体窒素冷却にて電気抵抗なく電力エネルギーを輸送できることから、長尺線材コイル化によるマグネット応用に期待されている。本研究では、線材の超伝導層の欠陥部位を補修する方法を開発する。
1年目は、(i)補修用薄膜材料の開発、(ii)薄膜線材の超伝導層と補修用薄膜との張り合わせ及び熱処理による薄膜の接合、(iii)補修部の評価、を行う。
2年目は、1年目にて得られた超伝導層の接合の知見をもとに、(iv)欠陥を人工導入した薄膜線材へ上記(i)から(iii)を適用し、補修効果の検証を行う。

Outline of Final Research Achievements

GdBa2Cu3Oy(GdBCO) superconducting tape has high critical temperature above 90 K and high critical current at liquid nitrogen temperature, so the tape has been expected to operate as long length wires. Nevertheless, devices using the tapes have not been commercialized yet, due to the difficulty for fabricating long length tapes. If a very small number of defects are found in the superconducting layer, the current value at the defect becomes the upper limit of the current value of the total length of the wire, and it is necessary to cut the wire at the defective part. In this study, superconducting joints of GdBCO tapes were prepared to for the purpose of partially repairing the defective part.
As results, we found important factors to join superconducting layer with high crystal orientation; heat-treatment temperature of jointing, mechanical pressure and partial pressure of oxygen during heat-treatment. Finally, we found optimum condition to join the tapes with high orientation.

Academic Significance and Societal Importance of the Research Achievements

本研究では、GdBCO超伝導薄膜線材を高い結晶配向で接合するための条件を明らかにすることができた。得られた成果は、超伝導線材に生じた極微小な欠陥部位を局所的に補修する技術に展開することができ、これまで欠陥部位で線材を切断していたがその必要がなくなるため長尺線材の作製において歩留まりが飛躍的に向上するものと期待され、高性能な線材を量産供給することによる超伝導技術の普及への一助となる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (27 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results) Presentation (24 results) (of which Int'l Joint Research: 10 results,  Invited: 2 results)

  • [Journal Article] Superconducting joint ofGdBa2Cu3Oy coated conductors by crystallization of additionally deposited precursor layer2019

    • Author(s)
      R. Teranishi, K. Hiramatsu, S. Yasuyama, T. Miyajima, Y. Sato, K. Kaneko, S. Awaji, A. Matsumoto, M. Inoue
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 巻未定 Issue: 5 Pages: 1-4

    • DOI

      10.1109/tasc.2019.2902693

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Microstructures of superconducting joint between GdBa2Cu3Oy-coated conductors via additionally deposited precursor films2019

    • Author(s)
      Tomohiro Miyajima, Ryo Teranishi, Syotaro Yasuyama, Yukio Sato, Kenji Kaneko, Takuya Maeda, Minoru Ochi, Kazuya Hiramatsu, Miyuki Nakamura, Valery Petrykin, Sergey Lee, Tatsunori Okada, and Satoshi Awaji
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: 5 Pages: 050913-050913

    • DOI

      10.7567/1347-4065/ab0f23

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Influence of joint pressure on superconducting and mechanical properties for jointed GdBa2Cu3Oy coated conductors via precursor films2019

    • Author(s)
      Tomohiro Miyajima, Ryo Teranishi, Syotaro Yasuyama, Yukio Sato, Kenji Kaneko, Valery Petrykin, Sergey Lee, Tatsunori Okada, Satoshi Awaji, and Akiyoshi Matsumoto
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: 5 Pages: 050907-050907

    • DOI

      10.7567/1347-4065/ab0727

    • NAID

      210000135480

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] REBa2Cu3Oy超伝導薄膜線材の接合プロセス2021

    • Author(s)
      寺西 亮
    • Organizer
      2021年度日本鉄鋼協会/日本金属学会 九州支部春季講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] TFA-MOD法で作製されたREBCO線材の臨界電流密度分布と組織分布の関係2021

    • Author(s)
      酒井 秀哉, 井上 昌睦, 寺西 亮
    • Organizer
      2021年度春季 第101回 低温工学・超電導学会研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高分解能X線CTを用いた超伝導線材接合部の非破壊評価(2)2021

    • Author(s)
      井上 昌睦, 太田 真揮人, 寺西 亮
    • Organizer
      2021年度春季 第101回 低温工学・超電導学会研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 2軸配向したLa添加YBa2Cu3Oy薄膜の作製条件の検討2021

    • Author(s)
      原口 顕輔、寺西 亮、金子 賢治、松本 明善、井上 昌睦
    • Organizer
      軽金属学会・日本金属学会・日本鉄鋼協会九州支部2021年度合同学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] MOD法によるBaHfO3添加YBa2Cu3Oy膜作製時のBa塩追加の効果2021

    • Author(s)
      寺西 亮, 山田 眞, 佐藤 幸生, 金子 賢治, 井上 昌睦, 岡田 達典, 淡路 智
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Ca添加によるGdBa2Cu3O7-δ薄膜の結晶配向性への影響の調査2021

    • Author(s)
      清原 悠生、寺西 亮、金子 賢治
    • Organizer
      軽金属学会・日本金属学会・日本鉄鋼協会九州支部2021年度合同学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Jc and composition distribution of YBCO coated conductor fabricated by TFA-MOD process2021

    • Author(s)
      Yoshiki Tanaka, Ryo Teranishi, Masataka Iwakuma, Masayoshi Inoue
    • Organizer
      The 15th European Conference on Applied Superconductivity (EUCAS2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of the formation mechanism of a-axis oriented grains in GdBa2Cu3Oy coated conductors deposited by pulsed laser deposition2021

    • Author(s)
      Ryo Teranishi, Kenta Inoue, Tatsuhiko Kikuyama, Takeshi Nishiyama, Kenji Kaneko, Masayoshi Inoue
    • Organizer
      27th International Conference on Magnet Technology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of precursor film thickness and heat-treatment temperature on superconducting joint2021

    • Author(s)
      Y. Doi, R. Teranishi, T. Miyajima, Y. Sato, K. Kaneko, A. Matsumoto, V. Petrykin, S. Lee, T. Okada, S. Awaji
    • Organizer
      27th International Conference on Magnet Technology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Air-gap Observation in Joints of REBCO Tapes by Use of X-ray Computed Tomography2021

    • Author(s)
      Masayoshi Inoue, Makito Ota, Ryo Teranishi, Takanobu Kiss
    • Organizer
      27th International Conference on Magnet Technology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Superconducting joint of GdBa2Cu3Oy coated conductors via crystallization of precursor layers2021

    • Author(s)
      Ryo Teranishi, Yutaro Doi, Yukio Sato, Kenji Kaneko, Valery Petrykin, Sergey Lee, Akiyoshi Matsumoto, Tatsunori Okada, Satoshi Awaji
    • Organizer
      The 2020 International Chemical Congress of Pacific Basin Societies(Pacifichem2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 追加堆積膜を利用したGdBa2Cu3Oy線材接合体作製時の機械的圧力の効果2020

    • Author(s)
      寺西 亮、土井 裕太郎、佐藤 幸生、金子 賢治、PETRYKIN Valery、LEE Sergey、松本 明善、岡田 達典、淡路 智
    • Organizer
      2020年度春季第99回 低温工学・超電導学会研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 追加堆積膜を利用したGdBa2Cu3Oy線材接合時の接合温度と結晶相の関係2020

    • Author(s)
      宮島友博、寺西 亮、佐藤幸生、金子賢治、Valery Petrykin、Sergey Lee、岡田達典、淡路 智、松本明善
    • Organizer
      2020年度応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 追加堆積膜を利用したGdBa2Cu3O7-x線材接合体の接合面積に及ぼす因子2020

    • Author(s)
      土井裕太郎、寺西亮、佐藤幸生、金子賢治
    • Organizer
      2020年度低温工学・超電導学会 九州西日本支部若手セミナー・研究成果発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] YBa2Cu3O7-δ粉末を利用した磁場シールド材の開発2020

    • Author(s)
      田丸隼也、寺西亮、佐藤幸生、金子賢治、岩熊成卓
    • Organizer
      2020年度低温工学・超電導学会 九州西日本支部若手セミナー・研究成果発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 追加堆積膜を利用したGdBa2Cu3Oy線材接合時の膜厚の影響2020

    • Author(s)
      寺西 亮、土井 裕太郎、佐藤 幸生、金子 賢治、PETRYKIN Valery、LEE Sergey、松本 明善、岡田 達典、淡路 智
    • Organizer
      2020年度秋季 第100回 低温工学・超電導学会研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] Influence of joint pressure on superconducting properties for jointed GdBa2Cu3Oy coated conductors prepared by crystallization of precursor films2020

    • Author(s)
      R. Teranishi, T. Miyajima, S. Yasuyama, Y. Sato, K. Kaneko, V. Petrykin, S. Lee, T. Okada, S. Awaji, A. Matsumoto
    • Organizer
      10th ACASC/2nd Asian-ICMC/CSSJ Joint Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication of additional deposited layer of for GdBa2Cu3O7-δ on coated conductors for joint2019

    • Author(s)
      Syotaro Yasuyama,Tomohiro Miyajima,Ryo Teranishi,Yukio Sato,Kenji Kaneko,Valery Petrykin,Sergey Lee,Satoshi Awaji,Tatsunori Okada,Akiyoshi Matsumoto
    • Organizer
      The 32nd International Symposium on Superconductivity
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of extra addition of Ba into YBa2Cu3O7-δ coated conductor with BaHfO32019

    • Author(s)
      Shin Yamada,Ryo Teranishi,Yukio Sato,Kenji Kaneko,Masayoshi Inoue
    • Organizer
      The 32nd International Symposium on Superconductivity
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Improving current characteristic of REBa2Cu3O7-δthin films2019

    • Author(s)
      S.Yasuyama,S.Yamada,Y.Doi,J.Tamaru,T.Miyajima,R.Teranishi,Y.Sato,K.Kaneko,V.Petrykin,S.Lee,S.Awaji,T.Okada,A.Matsumoto
    • Organizer
      TIA 超電導スクール 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Processing of superconducting joint for GdBa2Cu3Oy coated conductors2019

    • Author(s)
      TERANISHI, Ryo; MIYAJIMA, Tomohiro; YASUYAMA,Syotaro; SATO, Yukio; KANEKO, Kenji; PETRYKIN, Valery;LEE, Sergey; AWAJI, Satoshi; MATSUMOTO, Akiyoshi;INOUE, Masayoshi
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Societies
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] GdBa2Cu3O7-δ超伝導線材接続体の高Tc化2019

    • Author(s)
      安山正太郎、宮島友博、寺西亮、佐藤幸生、金子賢治、V. Petrykin、S. Lee、淡路智、岡田達典、松本明善
    • Organizer
      低温工学・超電導学会九州・西日本支部2019年度支部研究成果発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] BaHfO3添加YBa2Cu3O7-δ薄膜へのBa塩追加による表面析出物の抑制2019

    • Author(s)
      山田 眞、寺西亮、佐藤幸生、金子賢治
    • Organizer
      低温工学・超電導学会九州・西日本支部2019年度支部研究成果発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 追加堆積膜を利用した GdBa2Cu3Oy線材接合体の微細組織観察2019

    • Author(s)
      寺西 亮, 宮島友博, 佐藤幸生, 金子賢治, Valery Petrykin, Sergey Lee, 松本明善, 岡田達典, 淡路智
    • Organizer
      2019年度春季第98回 低温工学・超電導学会研究発表会
    • Related Report
      2019 Research-status Report

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Published: 2019-07-04   Modified: 2023-01-30  

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