发明授权
- 专利标题： Method of producing bismuth layered compound
- 专利标题（中）： 生产铋层状化合物的方法
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申请号： US621618申请日： 1996-03-26
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公开(公告)号： US5935549A公开(公告)日： 1999-08-10
- 发明人: Takaaki Ami , Katsuyuki Hironaka , Chiharu Isobe , Yuji Ikeda
- 申请人： Takaaki Ami , Katsuyuki Hironaka , Chiharu Isobe , Yuji Ikeda
- 申请人地址： JPX Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-073882 19950330
- 主分类号： C01G35/00
- IPC分类号： C01G35/00 ; C01G29/00 ; C01F1/00
摘要：
A process is disclosed for making a bismuth layered compound, such as Bi.sub.2 SrTa.sub.2 O.sub.9, by forming mixture of Bi.sub.2 O.sub.3, Ta.sub.2 O.sub.5 and a compound selected from strontium hydroxide or strontium nitrate, grinding the mixture, shaping the ground mixture at elevated temperature and pressure to form a pellet of bismuth strontium tantalum oxide having a fluorite structure and then heating the pellet in a flow of oxygen at 800-1000.degree. C. until a single phase bismuth layered compound is obtained.
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