首页>
外国专利>
Hot press manufacturing method for SiC fiber reinforced SiC composite material
Hot press manufacturing method for SiC fiber reinforced SiC composite material
展开▼
机译:SiC纤维增强SiC复合材料的热压制造方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
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.
展开▼