Abstract
Wear behaviours of La2O3-MoSi2composite against SiC under different loads at 1000°C and 0.126m/s sliding speed in air were investigated by using an XP-5 type high temperature friction and wear tester. The worn surfaces and phase of the sample were observed by scanning election microscopy (SEM) and X-ray diffraction (XRD), respectively. Results showed that friction coefficient and wear rate of La2O3-MoSi2composite and SiC decreased with the increase of loads. The wear mechanisms of La2O3-MoSi2composite are oxidation, adhesion abrasion and fatigue pitting.
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