发明授权
- 专利标题: Method of producing composite oxide ceramics
- 专利标题(中): 复合氧化物陶瓷的制造方法
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申请号: US693608申请日: 1996-08-07
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公开(公告)号: US5795537A公开(公告)日: 1998-08-18
- 发明人: Mamoru Senna , Sang-Hee Cho , Kenji Hamada
- 申请人: Mamoru Senna , Sang-Hee Cho , Kenji Hamada
- 申请人地址: JPX Tokyo
- 专利权人: Nara Machinery Co., Ltd.
- 当前专利权人: Nara Machinery Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX7-203322 19950809
- 主分类号: B02C15/02
- IPC分类号: B02C15/02 ; C01G33/00 ; C04B35/499 ; C04B35/622 ; C04B35/628
摘要:
The present invention provides a method of producing composite oxide ceramics which is capable of efficiently producing single-phase multi-component metal oxide ceramics having less impurity phase and excellent dielectric characteristics, by a simple process comprising sintering at a low temperature. The method has the steps of mixing a metallic hydroxide or hydrous gel with a plurality of metallic oxide powders to prepare a raw material mixture powder, activating the raw material mixture powder by mechanochemical treatment for grinding the raw material mixture powder with a degree of impact, which provides a centrifugal effect of 15 or more, to form a precursor, and synthesizing composite oxide ceramics by heat treatment of the activated raw material mixture powder (precursor).
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