发明申请
- 专利标题： Ceramic polycrystal and method of manufacturing the same
- 专利标题（中）： 陶瓷多晶及其制造方法
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申请号： US10099450申请日： 2002-03-15
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公开(公告)号： US20020155944A1公开(公告)日： 2002-10-24
- 发明人: Mitsuru Kurashina , Norikazu Niimi , Hirofumi Yamaguchi
- 申请人： NGK Insulators, Ltd.
- 申请人地址： JP Nagoya
- 专利权人： NGK Insulators, Ltd.
- 当前专利权人： NGK Insulators, Ltd.
- 当前专利权人地址： JP Nagoya
- 优先权： JP2001-095,673 20010329
- 主分类号： C04B035/115
- IPC分类号： C04B035/115 ; C04B035/581 ; C04B035/10
摘要：
A ceramic polycrystal and a method of manufacturing such a ceramic polycrystal having thermal stability enough to be used in an arc tube are provided. The ceramic polycrystal has crystalline particles. Each of crystalline particles has a crystalline structure selected from triclinc, monoclinic, rhombi, tetragonal, trigonal, and hexagonal systems, with an average grain size being not less than 5 nullm and a linear transmittance being not less than 8%.
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