Title:
THIN-FILM SUPERCONDUCTING WIRE ROD AND SUPERCONDUCTING CABLE CONDUCTOR
Document Type and Number:
WIPO Patent Application WO/2010/103699
Kind Code:
A1
Abstract:
A thin-film superconducting wire rod wherein a copper plating tin film is formed on the surface of a multilayer structure has a degraded flexural characteristic compared with the flexural characteristic of a thin-film superconducting wire rod having no copper plating thin film formed thereon. In order to suppress the degrading of the flexural characteristic, the thin-film super conducting wire rod (10) is provided with a multilayer structure (20) which includes a substrate (1), an intermediate layer (3) formed on one of the main surfaces of the substrate (1), and a superconducting layer (5) formed on the intermediate layer (3) main surface on the reverse side of the main surface facing the substrate (1). The thin-film superconducting wire rod (10) is further provided with a copper plating thin film (9) covering the outer circumference of the multilayer structure (20), and the residual stress inside of the copper plating thin film (9) operates as compression stress. The multilayer structure (20) may be provided with a silver-sputtered layer (6), and furthermore, may be provided with a silver coating layer (7) covering the outer circumference of the multilayer structure (20) between the copper plating thin film (9) and the multilayer structure (20).
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Inventors:
TANEDA, Takahiro (1-3, Shimaya 1-chome, Konohana-ku, Osaka-sh, Osaka 24, 〒5540024, JP)
種子田 賢宏 (〒24 大阪府大阪市此花区島屋一丁目１番３号 住友電気工業株式会社 大阪製作所内 Osaka, 〒5540024, JP)
種子田 賢宏 (〒24 大阪府大阪市此花区島屋一丁目１番３号 住友電気工業株式会社 大阪製作所内 Osaka, 〒5540024, JP)
Application Number:
JP2009/070302
Publication Date:
September 16, 2010
Filing Date:
December 03, 2009
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
住友電気工業株式会社 (〒41 大阪府大阪市中央区北浜四丁目５番３３号 Osaka, 〒5410041, JP)
INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER, THE JURIDICAL FOUNDATION (10-13, Shinonome 1-chome Koto-k, Tokyo 62, 〒1350062, JP)
財団法人国際超電導産業技術研究センター (〒62 東京都江東区東雲一丁目１０番１３号 Tokyo, 〒1350062, JP)
住友電気工業株式会社 (〒41 大阪府大阪市中央区北浜四丁目５番３３号 Osaka, 〒5410041, JP)
INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER, THE JURIDICAL FOUNDATION (10-13, Shinonome 1-chome Koto-k, Tokyo 62, 〒1350062, JP)
財団法人国際超電導産業技術研究センター (〒62 東京都江東区東雲一丁目１０番１３号 Tokyo, 〒1350062, JP)
International Classes:
H01B12/06; C23C14/34; H01B12/04
Attorney, Agent or Firm:
FUKAMI, Hisao et al. (Fukami Patent Office, Nakanoshima Central Tower 22nd Floor, 2-7, Nakanoshima 2-chome, Kita-ku, Osaka-shi, Osaka 05, 〒5300005, JP)
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