发明名称 |
Preparation of sintered zirconia body |
摘要 |
A sintered zirconia sheet is prepared by firing a green sheet of zirconia while placing at least one weight on the sheet to apply a load thereto. Preferably a weight made of a porous material having a porosity of 5 to 30% and having a weight per unit area W (g/cm2) and a surface area S (cm2) is placed on the sheet to apply a load per unit area G (g/cm2) to the sheet under the conditions: S</=200, G</=5, and W/G>/=0.5. Sintered zirconia sheets free of camber, distortion or cracking are obtained, particularly when their dimensions are at least 15 cmx15 cm and up to 0.5 mm thick.
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申请公布号 |
US5620637(A) |
申请公布日期 |
1997.04.15 |
申请号 |
US19940343881 |
申请日期 |
1994.11.17 |
申请人 |
NISSAN CHEMICAL INDUSTRIES, LTD. |
发明人 |
KAGA, TAKAO;HOSHI, YUZI;KIMURA, YUTAKA |
分类号 |
C04B35/486;C04B35/622;C04B35/64;(IPC1-7):C04B35/48 |
主分类号 |
C04B35/486 |
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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