发明授权
US5093312A (Ba, Ca).sub.x (.alpha., Dy).sub.1-x Tl.sub.y Cu.sub.1-Y O.sub.3-z where
.alpha. is Y or La oxide high temperature superconducting material
失效
（BA，CA）X（（ALPHA），DY）1-XTLYCU1-YO3-Z其中（ALPHA）为氧化亚锡高温超导材料
- 专利标题： (Ba, Ca).sub.x (.alpha., Dy).sub.1-x Tl.sub.y Cu.sub.1-Y O.sub.3-z where .alpha. is Y or La oxide high temperature superconducting material
- 专利标题（中）： （BA，CA）X（（ALPHA），DY）1-XTLYCU1-YO3-Z其中（ALPHA）为氧化亚锡高温超导材料
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申请号： US426669申请日： 1989-10-26
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公开(公告)号： US5093312A公开(公告)日： 1992-03-03
- 发明人: Hideo Itozaki , Saburo Tanaka , Nobuhiko Fujita , Shuji Yazu , Tetsuji Jodai
- 申请人： Hideo Itozaki , Saburo Tanaka , Nobuhiko Fujita , Shuji Yazu , Tetsuji Jodai
- 申请人地址： JPX Osaka
- 专利权人： Sumitomo Electric Industries, Ltd.
- 当前专利权人： Sumitomo Electric Industries, Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX62-185739 19870725; JPX62-185710 19870726
- 主分类号： C04B35/45
- IPC分类号： C04B35/45 ; H01L39/12 ; H01L39/24
摘要：
A superconducting material and a process for producing a superconducting material comprising a compound oxide represented by the general formula:(Ba, .gamma.).sub.x (.alpha.,.beta.).sub.1-x .epsilon..sub.y Cu.sub.1-y O.sub.3-zin which".gamma." represents an element of the IIa group of the periodic table except Ba, an atomic ratio of .gamma. to Ba, being selected in a range between 1% and 90%,".alpha." represents Y or La,".beta." represents an element of the IIIa group of the periodic table but is different from .alpha., and atomic ratio of .beta. to .alpha. being selected in a range between 1 and 90%,".epsilon." represents a metal element of the IIIb group of the periodic table, x, y and z are numbers each satisfies ranges of 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1, and 0.ltoreq.z.ltoreq.1 respectively, andthe expression of (Ba, .gamma.) and (.alpha., .beta.) mean that the respective elements occupy predetermined sites in a crystal in a predetermined proportion.
公开/授权文献
- US3951996A Process for making nicotinic acid hydrazides 公开/授权日：1976-04-20
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