| 发明名称 |
PROCESS FOR PRODUCING POWDER MATERIAL FOR LEAD PEROVSKITE CERAMIC |
| 摘要 |
A process for producing a powder material for niobium-containing lead perovskite ceramics represented by the general formula: PbAxNb1-xO3, wherein X = 1/2 or 1/3 and A represents at least one element selected from Fe, Co, Cr, Ni, Mn, Mg, Zn, Cd, Zr, In, Cu and Hf. A dried mixture of a sol or suspension of a hydroxide of A (which has a lower activity than Pb) and a niobic acid sol is first calcined A Pb compound is then added to the mixture and the resultant mixture is calcined again. |
| 申请公布号 |
EP0428387(A3) |
申请公布日期 |
1992.02.26 |
| 申请号 |
EP19900312385 |
申请日期 |
1990.11.13 |
| 申请人 |
SAKAI CHEMICAL INDUSTRY CO., LTD.,;DIRECTOR-GENERAL NATIONAL INSTITUTE FOR RESEARCH IN INORGANIC MATERIALS |
发明人 |
TERADA, YASUJIKO;UNO, HAJIME;ABE, KAZUNOBU;SHIRASAKI, SHINICHI |
| 分类号 |
C04B35/626;C01G33/00;C01G45/00;C01G49/00;C01G51/00;C01G53/00;C04B35/00;C04B35/497;(IPC1-7):C01G33/00;C04B35/49;C01G37/00 |
主分类号 |
C04B35/626 |
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