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通过热压烧结成功地制备了高致密度的ＳｉＣｗ晶须补强ＣＭＡＳ玻璃陶瓷基复合材料．ＳｉＣｗ晶须经超声波分散以后，加入到已球磨好的ＣＭＡＳ粉末与有机添加剂的浆料中，搅拌得到ＳｉＣｗ分散均匀的混合浆料．含有机添加剂的浆料在较低的压力下（２．３７ｋＰａ）挤压通过微孔（＝２５０μｍ），获得ＳｉＣｗ晶须分散均匀并高度取向的纤维状生坯．含晶须２０％的ＣＭＡＳ通过无压烧结，烧结后样品相对密度仅达８０％．但是通过热压烧结就可制备出相对密度达９４．２％的复合材料．
High-density SiCw whisker reinforced CMAS glass-ceramic matrix composites were successfully prepared by hot pressing sintering. After SiCw whisker is dispersed by ultrasonic wave, it is added to the slurry of well-milled CMAS powder and organic additive, and stirred to obtain a uniformly mixed slurry of SiCw. Slurries containing organic additives were extruded through micropores ( = 250 μm) at a lower pressure (2.37 kPa) to obtain a fibrous green body with uniformly dispersed and highly oriented SiCw whiskers. The CMAS with 20% whiskers was sintered by pressureless sintering, and the relative density of the sintered samples was only 80%. However, the composites with a relative density of 94.2% can be prepared by hot pressing.