H - Electricity – 01 – B
Patent
H - Electricity
01
B
337/86, 26/112.1
H01B 12/06 (2006.01) H01B 13/00 (2006.01) H01F 6/06 (2006.01) H01L 39/24 (2006.01)
Patent
CA 2030558
An oxide superconductive wire is provided by, for example, forming an oxide superconductive layer on a tape- type flexible base. A preliminary compressive strain is applied to the oxide superconductive layer in the longitudinal direction. The remaining strain can be provided by using a base having thermal expansion coefficient larger than that of the oxide superconductive layer and by cooling the same after heat treatment, due to contraction of the base. Since the preliminary compressive strain is applied to the oxide superconductive layer, degradation of superconductivity of the oxide superconductive layer can be suppressed even if the oxide superconductive wire is bent in any direction, compared with the wire without such strain. Therefore, the oxide superconductive wire can be coiled, for example, without much degrading the superconductivity.
Hayashi Noriki
Hitotsuyanagi Hajime
Okuda Shigeru
Takano Satoshi
Bereskin & Parr
Sumitomo Electric Industries Ltd.
The Kansai Electric Power Co. Inc.
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