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METHOD OF PRODUCING TRANSPARENT CERAMICS 发明申请

2023-03-30 1800 448K 0

专利信息

申请日期 2025-07-16 申请号 US12728865
公开(公告)号 US20100248932A1 公开(公告)日 2010-09-30
公开国别 US 申请人省市代码 全国
申请人 MENKE YVONNE; IKESUE AKIO
简介 The method of making a transparent ceramic includes making a molded body from a powder mixture of starting materials, which include one or more sintering aids. The sintering aids can include SiO2, TiO2, ZrO2, HfO2, Al2O3 and/or fluorides. The transparent ceramic is made by pre-sintering the molded body at temperatures between 500° C. to 900° C., subsequently sintering in vacuum at temperatures between 1400° C. and 1900° C. and then pressurizing the sintered molded body at a pressure of from 10 to 198 MPa followed by annealing. The optoceramic material contains crystals with a stoichiometry of A2+XBYBYDZE7, wherein −1.15≦x≦+1.1, 0≦y≦3, 0≦z≦1.6 and 3x+4y+5z=8; and wherein A is a trivalent rare earth cation, B is a tetravalent cation, D is a pentavalent cation and E is a divalent anion.


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