【摘 要】
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Wear behaviors of MoSi2 doped with La2O3 against SiC under different loads at 1000 ℃ in air were investigated by using an XP-5type high temperature friction an
【机 构】
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Institute of Material Preparation and Applied Technology,College of Electromechanical Engineering
论文部分内容阅读
Wear behaviors of MoSi2 doped with La2O3 against SiC under different loads at 1000 ℃ in air were investigated by using an XP-5type high temperature friction and wear tester. The worn surfaces and phases of the samples were analyzed by scanning electron microscopy (SEM) and X-ray diffraction, respectively. Results showed that the addition of La2O3 could obviously improve wear resistance of MoSi2. Because of the formation of MoO3 phase on the worn surface, La2O3/MoSi2 composite mainly exhibited oxidation and abrasive wear, which was different fiom the wear form of MoSi2 such as adhesion, oxidation and abrasion.
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