发明公开
- 专利标题： Ceramic composition
- 专利标题（中）： Keramische Verbindung。
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申请号： EP90104053.5申请日： 1990-03-02
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公开(公告)号： EP0387625A2公开(公告)日： 1990-09-19
- 发明人: Spencer, Nicholas David
- 申请人： W.R. Grace & Co.-Conn.
- 申请人地址： Grace Plaza, 1114 Avenue of the Americas New York, New York 10036 US
- 专利权人： W.R. Grace & Co.-Conn.
- 当前专利权人： W.R. Grace & Co.-Conn.
- 当前专利权人地址： Grace Plaza, 1114 Avenue of the Americas New York, New York 10036 US
- 代理机构： Abitz, Walter, Dr.-Ing.
- 优先权： US324482 19890316
- 主分类号： H01L39/24
- IPC分类号： H01L39/24
摘要：
Improved process for making Bi-Pb-Sb-Sr-Ca-Cu oxide superconductors. A solution of the nitrates of Bi, Pb, Sr, Ca, and Cu is reacted with a quaternary ammonium carbonate in a dispersion (heel) of Sb₂O₅. Carbonates of Bi, Pb, Sr, Ca, and Cu precipitate homogeneously on the Sb₂O₅ particles. Solids are recovered, dried, and heated to make a superconductor. The method minimizes handling toxic antimony compounds and reduces introduction of contaminants. Novel compositions result.
公开/授权文献
- EP0387625A3 Ceramic composition 公开/授权日：1991-04-17
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