发明授权
US5147848A Precipitation process for forming Bi-Pb-Sr-Ca-Cu-O superconductors by
dissolving nitrate salts in acid and adding a solution of triethylamine
and oxalic acid
失效
通过将硝酸盐溶解在酸中并加入三乙胺和草酸溶液来形成Bi-Pb-Sr-Ca-Cu-O超导体的沉淀过程
- 专利标题： Precipitation process for forming Bi-Pb-Sr-Ca-Cu-O superconductors by dissolving nitrate salts in acid and adding a solution of triethylamine and oxalic acid
- 专利标题（中）： 通过将硝酸盐溶解在酸中并加入三乙胺和草酸溶液来形成Bi-Pb-Sr-Ca-Cu-O超导体的沉淀过程
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申请号： US551629申请日： 1990-07-11
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公开(公告)号： US5147848A公开(公告)日： 1992-09-15
- 发明人: Chau-Ting Chang , Cheng-Yei Shei , Ru-Shi Liu
- 申请人： Chau-Ting Chang , Cheng-Yei Shei , Ru-Shi Liu
- 申请人地址： TWX
- 专利权人： Industrial Technology Research Institute
- 当前专利权人： Industrial Technology Research Institute
- 当前专利权人地址： TWX
- 主分类号： C01G29/00
- IPC分类号： C01G29/00 ; H01L39/24
摘要：
A process for preparing powder of high temperature oxide superconductors of Bi-Pb-Sr-Ca-Cu-O type. In an aqueous solution of nitrate salts of Bi, Pb, Sr, Ca, and Cu metals, an appropriate ratio of triethylamine/oxalic acid was added to form a coprecipitate. Through the process of calcination at a temperature in the range of 750.degree. C. to 800.degree. C. and sintering at a temperature of 860.degree. C., a uniform and fine powder superconductive metal oxide having a critical temperature of 110K is obtained as the final product.
公开/授权文献
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