发明名称 |
LIGHT-TRANSMISSIVE POLYCRYSTALLINE MATERIAL AND METHOD FOR PRODUCING THE SAME |
摘要 |
Provided is a method for producing a light-transmissive polycrystalline material wherein a suspension (slurry 1) is prepared by suspending, in a solution, a starting powder which comprises optically-anisotropic single crystal grains to which a rare earth element has been added. A molded article is obtained from the suspension by slip casting within the space of a magnetic field. The temperature is controlled at this time such that the single crystal grains demonstrate a predetermined magnetic anisotropy while a static magnetic field or a rotary magnetic field is selected and applied in the direction of the easy axis of magnetization of the single crystal grains. The molded article is baked to obtain a light-transmissive polycrystalline material having a polycrystalline structure wherein the crystal orientation is controlled. During this baking step, the molded article is subjected to primary sintering at a temperature of 1,600 to 1,900 K and the primary sintered compact is then subjected to hot isostatic pressing (HIP treatment) at a temperature of 1,600 to 1,900 K. |
申请公布号 |
WO2010073712(A1) |
申请公布日期 |
2010.07.01 |
申请号 |
WO2009JP07279 |
申请日期 |
2009.12.25 |
申请人 |
INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION, NATIONAL INSTITUTES OF NATURAL SCIENCES;GENESIS RESEARCH INSTITUTE, INCORPORATED;TAIRA, TAKUNORI;AKIYAMA, JUN;ASAI, SHIGEO;HARA, KUNIHIKO |
发明人 |
TAIRA, TAKUNORI;AKIYAMA, JUN;ASAI, SHIGEO;HARA, KUNIHIKO |
分类号 |
C04B35/00;B28B1/00;C04B35/447;C04B35/50;C04B35/645;C30B1/02;C30B29/22;H01S3/16 |
主分类号 |
C04B35/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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