为了满足不同马赫数飞行器对透波材料提出的集透波、承载、防热、耐蚀、抗冲击于一体的性能要求,本文开展了不同耐热区间纤维增强陶瓷基复合材料的研究.采用PIP工艺分别制备了氧化铝、莫来石、石英、氮化硅纤维增强SiBN陶瓷基复合材料,并对其介电和力学性能进行了测试与评价.结果发现莫来石纤维增强SiBN陶瓷基复合材料的介电常数和介电损耗分别为4.1 ～4.2和1.0× 10-2～ 9.7×10-3,抗弯、拉伸、压缩强度分别为95.12、34.95和80.92 MPa,具有最佳的综合性能.
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