Effect of La_2O_3 on the wear behavior of MoSi_2 at high temperature |
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| Authors: | ZHANG Houan GU Siyong XIE Nengping |
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| Affiliation: | ZHANG Houan GU Siyong XIE Nengping (1. Institute of Material Preparation and Applied Technology,Xiamen University of Technology,Xiamen 361024,China,2. College of Electromechanical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China) |
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| Abstract: | Wear behaviors of MoSi2 doped with La2O3 against SiC under different loads at 1000 oC in air were investigated by using an XP-5 type 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 an... |
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| Keywords: | MoSi2 matrix composite wear high temperature La2O3 SiC rare earths |
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