Patent ID: 7498083
Filing Date: 2009-03-03
Classification: C23C,Y10T

Abstract:
1. A sliding member with excellent wear resistance in water-based environments, comprising a combination of sliding members to be operated in water-based environments, wherein both sliding surfaces of said sliding part consist essentially of an amorphous carbon film and an intermediate layer between the amorphous carbon film and a base material, wherein the amorphous carbon film is a hydrogenated amorphous carbon film consisting of carbon and hydrogen, an atomic per cent of hydrogen is from 5 to 40 at %, a thickness of the amorphous carbon film is from 0.5 to 5 μm, a hardness of the amorphous carbon film is 7 to 25 GPa; the intermediate layer consists of: a water-based environment is a state of immersion in a water-based solvent which does not exhibit equivalent lubricating effects to oil-based solvents or a state wherein a water-based solvent is supplied as a lubricant.