| abstract |
PROBLEM TO BE SOLVED: To provide an inexpensive sliding material excellent in lubricity, abrasion resistance and mechanical strength. SOLUTION: Raw metal powder selected from stainless steel, heat-resistant steel, copper, copper alloy, aluminum, aluminum alloy and the like is sintered by powder metallurgy to form a large number of dispersed pores 11b. Is manufactured. Surface 11 of base material 11 In a, a large number of base dimples 11b 'composed of a part of the dispersed pores 11b are randomly formed. Base material 1 A hard film 12 is formed on the surface 11a by vapor-depositing a material selected from amorphous carbon, diamond-like carbon, silicon carbide, titanium carbide, titanium nitride, titanium carbonitride, silicon nitride, and the like. The dimple 10b corresponding to the base dimple 11b is formed on the (sliding surface 10a). |