JP6688914B1 - 酸化物超電導線材及び超電導コイル - Google Patents
酸化物超電導線材及び超電導コイル Download PDFInfo
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- JP6688914B1 JP6688914B1 JP2019005260A JP2019005260A JP6688914B1 JP 6688914 B1 JP6688914 B1 JP 6688914B1 JP 2019005260 A JP2019005260 A JP 2019005260A JP 2019005260 A JP2019005260 A JP 2019005260A JP 6688914 B1 JP6688914 B1 JP 6688914B1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
Description
特許文献1には、樹脂コートの膨れや剥がれの発生を確実に防止するため、外周に形成されたCu安定化層の上面と下面の表面粗さが、JIS B0601:2013の算術平均粗さRaで0.3〜1μmである酸化物超電導線材が開示されている。
特許文献2には、超電導積層体の外面を覆うように樹脂材料の焼き付けにより絶縁被覆層を形成する場合に超電導層の剥離を防止するため、超電導積層体の外面が、JIS B0601:2001の最大高さRzで890nm以下である酸化物超電導線材が開示されている。
また、本発明は、前記安定化層の周囲に、前記安定化層の外表面に樹脂テープからなる絶縁層を有することを特徴とする酸化物超電導線材を提供する。
また、本発明は、前記酸化物超電導線材が厚さ方向に積層された超電導コイルを提供する。
Claims (4)
- 基板上に中間層を介して酸化物超電導層を有し、前記酸化物超電導層の上にAg保護層を有する超電導積層体と、
前記超電導積層体の周囲に形成された銅めっきからなる安定化層と、
を有する酸化物超電導線材であって、
前記安定化層の厚さdが10〜40μmの範囲であり、前記安定化層の外表面の算術平均粗さRaが、0.1〜1.0μmの範囲であり、前記安定化層の厚さdと、前記安定化層の外表面の算術平均粗さRaとの比Ra/dが0.005〜0.03の範囲であり、
前記酸化物超電導線材を、液体窒素中で180〜600MPaの応力範囲で長手方向に引っ張る引張試験を実施して、繰り返し引張回数が100,000回に達したときの臨界電流(Ic)と、前記引張試験を実施する前に測定した初期臨界電流(Ic0)との比(Ic/Ic0)が0.99以上であることを特徴とする酸化物超電導線材。 - 前記基板の厚さが50〜75μmの範囲であることを特徴とする請求項1に記載の酸化物超電導線材。
- 前記安定化層の周囲に、前記安定化層の外表面に樹脂テープからなる絶縁層を有することを特徴とする請求項1又は2に記載の酸化物超電導線材。
- 請求項1〜3のいずれか1項に記載の酸化物超電導線材が厚さ方向に積層された超電導コイル。
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CN110797148A (zh) * | 2019-10-08 | 2020-02-14 | 上海交通大学 | 适用于无绝缘线圈的超导带材、无绝缘线圈及其制备方法 |
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CN110797148A (zh) * | 2019-10-08 | 2020-02-14 | 上海交通大学 | 适用于无绝缘线圈的超导带材、无绝缘线圈及其制备方法 |
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