界面层对陶瓷基复合材料性能的影响

Effect of Interface Layer on Properties of Ceramic Matrix Composites

纤维增强SiC陶瓷基复合材料由纤维、界面层和SiC基体组成。界面层可以传递载荷和偏转裂纹,同时防止纤维受到材料制备和使用过程中的化学侵蚀,对于调节SiC陶瓷基复合材料的各项性能具有非常重要的作用。本文在叙述界面层功能的基础上,讨论了界面层对陶瓷基复合材料的力学、耐高温及抗氧化性能的影响,并分析了研究中存在的问题,指出了未来研究的方向和重点。

Fiber reinforced SiC ceramic matrix composites are composed of fiber,interface layer and SiC matrix.The interface layer can transfer load and deflect cracks,and prevent the fibers from being chemically eroded in the process of material preparation and use.It plays a very important role in adjusting the properties of SiC ceramic matrix composites.Based on the description of the function of the interface layer,this paper discusses the influence of the interface layer on the mechanical,high temperature resistance and oxidation resistance of ceramic matrix composites,analyzes the problems existing in the research,and points out the direction and focus of future research.