碳纤维增强陶瓷基复合材料抗氧化技术研究

Oxidation Protection of Carbon Fiber Reinforced Ceramic Matrix Composites

碳纤维增强陶瓷基复合材料(CFRCMCs)具有良好的高温力学性能和热性能,是航空航天领域非常理想的热结构材料.但CFRCMCs中的碳纤维极易发生氧化,因此CFRCMCs的氧化防护问题一直是CFRCMCs研究的热点.文章对碳纤维改性、基体抗氧化技术、界面层抗氧化技术和表面涂层技术这四种CFRCMCs的抗氧化技术及其原理进行了评述,分析了各类抗氧化技术的特点并对其发展趋势进行了展望.

Carbon fiber reinforced ceramic matrix composites （CFRCMCs） are the ideal thermostructure materials owing to its perfect high - temperature mechanical property and good hot property. However, the carbon fiber in the CFRCMCs could be oxidized easily, so the oxidation protection of the CFRCMCs had attracted the interest of researchers. In this paper, the methods for oxidation protection, such as modification of the carbon fibers, oxidation protection by matrix, and oxidation protection by interphase and coat- ing technology, were discussed, and their mechanics and features were summarized. The development trend of the antioxidation technology was prospected.