MoSi_2基复相材料的研究进展

Research Progress of MoSi_2 Matrix Composites

通过对MoSi2 复相材料近年来研究进展的总结 ,阐述了合金化和复合化对MoSi2 基复相材料性能的改善 .着重叙述了MoSi2 SiC系复相材料的制备方法 ,以及增强相的含量对力学性能的影响 .研究结果表明 ,通过基体的改性和复合化 ,使复相材料的强韧性得到很大程度的提高 ,而不同的制备工艺所得到材料的性能有成倍的差异 .因此 ,协同优化增强剂种类、数量和多种制备工艺的有机结合 ,是制备高性能复相材料的关键 .同时 ,介绍了几种有发展前景的复相材料 ,并提出了MoSi2基复相材料的研究发展趋势 .

The recent research progress of molybdenum disilicide matrix composites is summarized, and improvement of molybdenum disilicide matrix composites properties by alloying and compositing is analyzed. The effect of processing methods and reinforcing volume on the mechanical properties are discussed in detail. The research result indicates that composites properties are improved greatly, and that the processing methods have much effect on material’s properties. It is a key to synergy the type of reinforcing phase, quantity and processing methods for making high performance materials. Some prospective composites are introduced and the trend of research and development on the disilicide composites is proposed.