发明授权
- 专利标题: Oxide superconductor and method for producing the same
- 专利标题(中): 氧化物超导体及其制造方法
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申请号: US598040申请日: 1996-02-07
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公开(公告)号: US5670458A公开(公告)日: 1997-09-23
- 发明人: Mikio Takano , Zenji Hiroi , Yasuo Takeda , Toshio Takada, deceased , by Komichi Takada, administrator , by Jun Takada, administrator , by Kei Takada, administrator
- 申请人: Mikio Takano , Zenji Hiroi , Yasuo Takeda , Toshio Takada, deceased , by Komichi Takada, administrator , by Jun Takada, administrator , by Kei Takada, administrator
- 申请人地址: JPX JPX
- 专利权人: Seisan Kaihatsu Kagaku Kenkyusho,NEC Corporation
- 当前专利权人: Seisan Kaihatsu Kagaku Kenkyusho,NEC Corporation
- 当前专利权人地址: JPX JPX
- 优先权: JPX5-131778 19930602
- 主分类号: C01G1/00
- IPC分类号: C01G1/00 ; B01J3/06 ; C01G3/00 ; C04B35/45 ; H01L39/12 ; H01B12/00 ; C04B35/01 ; C04B35/057
摘要:
An oxide superconductor having a composition of the formula: A.sub.n+1 Cu.sub.n O.sub.2n+1+.delta. in which A is at least one alkaline earth metal element selected from the group consisting of calcium, strontium and barium, n is an integer of at least one, and .delta. is a number larger than 0 and not larger than 1, a laminate structure in which a layer having a partial composition of A.sub.2 O.sub.1+.delta. and a layer having a partial composition of A.sub.n-1 Cu.sub.n O.sub.2n are alternately laminated, and a superconductive critical temperature equal to or higher than the liquid nitrogen temperature.
公开/授权文献
- US5083687A Nozzle for continuous casting and method of producing 公开/授权日:1992-01-28
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