SiC-MoSi_2复合材料的制备及其性能的研究进展

Research Progress on Preparation and Properties of SiC-MoSi_2 Composite

二硅化钼(MoSi2)是目前广泛应用的一种高温材料,但低温脆性和高温抗蠕变性差限制了其应用领域,通过在MoSi2中添加碳化硅(SiC)能有效改善上述性能。本文综述了近十年来SiC-MoSi2复合材料制备方法,SiC颗粒、晶须、纤维等强韧化MoSi2材料的研究进展,并对SiC-MoSi2复合材料的其它性能进行了总结。

Molybdenum disilicide （MoSi2 ） is widely used as an elevated temperature material, while the poor brittleness at low temperature and weak creep resistance at high temperature of the material limit it＇ s application. Adding silicon carbide （SiC） into MoSi2 can effectively improve the above-mentioned performances of MoSi2. The paper reviewed the preparation method of the SiC-MoSi2 composites, the strengthening and toughening mechanism of SiC particle, whisker and fiber to MoSi2 material during the past decade. Furthermore, other properties of SiC-MoSi2 composites was discussed.