采用碳纤维针刺预制体,用前驱体浸渍裂解(PIP)法分别制备了C/C-SiC和C/C-SiC-ZrC陶瓷基复合材料,并对材料的微观结构、力学和烧蚀性能进行了分析对比.结果表明:利用该方法可制备出陶瓷相填充充分且分布均匀的复合材料.C/C-SiC-ZrC的面内弯曲强度、厚度方向的压缩强度、层间剪切强度均低于对应的C/C-SiC的.2 200℃、600 s氧化烧蚀后,C/C-SiC-ZrC的抗烧蚀性能显著优于C/C-SiC,其线烧蚀率下降43.8％,质量烧蚀率下降25％.在超高温阶段,C/C-SiC-ZrC复合材料基体的ZrC氧化生成的ZrO2溶于SiC氧化生成的SiO2中,形成黏稠的二元玻璃态混合物,有效阻止了氧化性气氛进入基体内部.
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