| 摘要 |
PROBLEM TO BE SOLVED: To obtain a silicon carbide-based composite material excellent in sliding characteristics without damaging an opposite material while maintaining high hardness by dispersing carbon particles in a silicon carbide matrix. SOLUTION: A laminated body is produced by laminating a formed body of spherical high density carbon particles having >=5μm particle size and ceramic fibers. The laminated body is impregnated with molten silicon heated at 1420 to 1500 deg.C in vacuum and to effect reaction sintering to obtain a silicon carbide composite material. In the composite material, silicon layers 5 and carbon particles 6 of >=5μm average particle size are dispersed by 2-50wt.% in a silicon carbide matrix 4. Thus, the silicon carbide composite material is reinforced by the ceramic fibers 2. A wear resistance sliding part is obtd. by using this silicon carbide composite material as a sliding face. |
