| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal matrix composite having excellent properties required of a sliding material for brakes, particularly properties such as hardness, heat resistance, wear resistance, proper fraction coefficient and friction coefficient stability, and also having excellent properties required of a high- temperature bearing, particularly properties such as hardness, heat resistance and extremely low friction coefficient. SOLUTION: The metal matrix composite can be obtained by impregnating aluminum or aluminum alloy into a preform which is composed of (1) ceramic fibers, carbon fibers, ceramic whiskers, ceramic particles or carbon particles and (2) metal titanium powder and in which the volume fraction of the metal titanium powder is made to 0.5-15% and further carrying out heat treatment. |
