发明授权
- 专利标题: Method of sintering translucent alumina
- 专利标题(中): 烧结半透明氧化铝的方法
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申请号: US802414申请日: 1985-11-27
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公开(公告)号: US4762655A公开(公告)日: 1988-08-09
- 发明人: William H. Rhodes , George C. Wei , George A. Fryburg
- 申请人: William H. Rhodes , George C. Wei , George A. Fryburg
- 申请人地址: MA Waltham
- 专利权人: GTE Laboratories Incorporated
- 当前专利权人: GTE Laboratories Incorporated
- 当前专利权人地址: MA Waltham
- 主分类号: C04B35/111
- IPC分类号: C04B35/111 ; C04B35/10
摘要:
An improved process for producing a translucent polycrystalline alumina body comprising sintering a prefired compacted green body of alumina of predetermined shape is disclosed. The green body of alumina includes alumina doped with one or more sintering aids. The method of the present invention comprises sintering the prefired compacted green body of predetermined shape at a maximum sintering temperature in an atmosphere containing nitrogen and an amount of hydrogen greater than or equal to about 2.5 volume percent and less than 75 volume percent for a period of time sufficient to produce a translucent polycrystalline alumina body.
公开/授权文献
- US5738355A Game 公开/授权日:1998-04-14
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