Abstract

Titanium carbide (TiC) particles have been added to molybdenum disilicide (MoSi 2) to form TiC–MoSi 2 composites. Benefits associated with the addition of the TiC to MoSi 2 include finer microstructure, higher strength, higher fracture toughness and higher hardness. Under the wear condition of this test, the wear resistance of MoSi 2 increases significantly by the addition of TiC particles. The wearing rate of TiC–MoSi 2 composites is as low as tenth of monolithic MoSi 2. The effects of fracture toughness and hardness on wear resistance are discussed.

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