发明名称 |
Method of preparing oxide superconducting wire |
摘要 |
<p>Disclosed herein is a method of preparing an oxide superconducting wire comprising the steps of coating a powder material for forming an oxide superconductor with a metal, performing deformation processing on the metal-coated powder material thereby obtaining a tape-type wire material, superposing a plurality of such tape-type wire materials, performing first heat treatment on the plurality of superposed tape-type wire materials while simultaneously diffusion-bonding the metallic coats to each other, then performing deformation processing on the plurality of superposed tape-type wire materials, and performing second heat treatment on the plurality of deformation-processed tape-type wire materials. Preferably the oxide superconductor to be obtained is a bismuth oxide superconductor having a 2223 composition in a composition of Bi-Sr-Ca-Cu or (Bi,Pb)-Sr-Ca-Cu, and the powder material consists of a superconducting phase, which is mainly composed of a 2212 phase, and non-superconducting phases.</p> |
申请公布号 |
EP0467237(B1) |
申请公布日期 |
1997.10.22 |
申请号 |
EP19910111684 |
申请日期 |
1991.07.12 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LIMITED |
发明人 |
SATO, KENICHI;MUKAI, HIDEHITIO;HIKATA, TAKESHI |
分类号 |
B21F15/06;B21F19/00;B22F3/14;C22C1/05;H01B12/10;H01B13/00;H01L39/24;(IPC1-7):H01L39/24 |
主分类号 |
B21F15/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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