分别以碳毡和二维碳纤维为预制体,采用化学液相气化渗入法结合熔融渗硅反应法快速制备了C/C-SiC陶瓷复合材料.对这种材料的密度和气孔率进行了表征,并通过XRD,OM和SEM等方法对其相组成、显微结构和反应机理进行了研究.结果表明:不同预制体制备的C/C-SiC材料密度和气孔率分别为～2.0 g/cm3和～1.0%.其相组成包括反应生成β-SiC以及未反应的游离Si和C.C/C-SiC中纤维被环状的沉积碳包裹,生成SiC的反应只发生在Si与沉积碳之间,纤维没有损伤.Si,C和SiC各相分布和含量因预制体的不同而有明显差异.
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