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采用改制的盘销式摩擦磨损试验机，在１５℃、３００℃、６００℃下，对浸Ｓｉ反应烧结ＳｉＣ及其复合材料的干摩擦磨损性能进行了研究．结果表明，添加Ｎｉ、Ｔｉ的ＳｉＣ复合材料对原ＳｉＣ材料１５℃常温时的摩擦学性能影响不大，但能使６００℃条件下的摩擦学性能得到明显改善，其中加Ｔｉ的ＳｉＣ复合材料的摩擦系数可降低到０３２．磨屑的Ｘ射线物相分析结果表明，加Ｎｉ、Ｔｉ的ＳｉＣ陶瓷复合材料与原ＳｉＣ陶瓷材料相比，在高温下的摩擦机制有着本质的不同，从而造成在摩擦学性能上有较大的差异．同时结合ＳＥＭ磨面分析，对磨损机制进行了讨论
The friction and wear properties of SiC and its composites subjected to Si reaction were studied by using a modified plate-type friction and wear tester at 15 ℃, 300 ℃ and 600 ℃. The results show that the addition of Ni, Ti SiC composites has little effect on the tribological properties of the original SiC materials at 15 ℃, but the tribological properties of the SiC composites at 600 ℃ can be obviously improved. The friction coefficient can be reduced to 0 32. X-ray phase analysis of the wear debris showed that compared with the original SiC ceramic material, SiC and Ni-Ti-based SiC composites have different frictional mechanisms at high temperature, resulting in larger tribological properties difference. At the same time, combined with SEM grinding surface analysis, the wear mechanism was discussed