发明授权
- 专利标题： Yttria sintered body and corrosion-resistant material, and manufacturing method
- 专利标题（中）： 氧化钇烧结体和耐腐蚀材料及其制造方法
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申请号： US11486956申请日： 2006-07-14
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公开(公告)号： US07407904B2公开(公告)日： 2008-08-05
- 发明人: Takayuki Ide , Masakatsu Kiyohara
- 申请人： Takayuki Ide , Masakatsu Kiyohara
- 申请人地址： JP Fukuoka
- 专利权人： Toto Ltd.
- 当前专利权人： Toto Ltd.
- 当前专利权人地址： JP Fukuoka
- 代理机构： Carrier, Blackman & Associates, P.C.
- 代理商 Joseph P. Carrier; William D. Blackman
- 优先权： JP2005-206830 20050715; JP2006-192408 20060713
- 主分类号： C04B35/505
- IPC分类号： C04B35/505
摘要：
The object of the present invention is to provide an yttria (Y2O3) sintered body having high density and excellent plasma-resistance. The yttria sintered body has a structure in which a Y2O3 crystal and a Y3BO6 crystal are included as the constituent crystal thereof. In order to produce the yttria sintered body, a boron oxide (B2O3) of 0.02 wt % to 10 wt % is added to an yttria (Y2O3) powder, the mixed powder is formed, and thereafter sintered at 1300-1600° C.