发明名称 |
METHOD FOR PRODUCING SIC FIBER-REINFORCED SIC COMPOSITE MATERIAL BY MEANS OF HOT PRESS |
摘要 |
<p>A powdery mixture of fine SiC powder with one or more oxide sintering additives of Al2O3, Y2O3, SiO2 and CaO is blended and uniformly dispersed in a polymeric SiC precursor to prepare a matrix-forming polymeric slurry. A preform of SiC fiber, which has quasi-stoichiometric composition with high crystallinity, is impregnated with the polymeric slurry and then hot-pressed at a temperature of 1600 DEG C or higher in presence of a liquid phase. Since the heat-resistant SiC fiber is used as strengthening fiber, the prepreg is sintered to a dense SiC composite excellent in mechanical properties by one-step hot-pressing.</p> |
申请公布号 |
EP1375452(A1) |
申请公布日期 |
2004.01.02 |
申请号 |
EP20010980902 |
申请日期 |
2001.10.25 |
申请人 |
JAPAN SCIENCE AND TECHNOLOGY CORPORATION |
发明人 |
KOHYAMA, AKIRA;KATOH, YUTAI |
分类号 |
C04B35/565;C04B35/571;C04B35/575;C04B35/80;(IPC1-7):C04B35/80 |
主分类号 |
C04B35/565 |
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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