Patent ID: 7294416
Filing Date: 2007-11-13
Classification: C04B,C23C,Y10T

Abstract:
1. A hard film formed of a material containing a (M 1-x Si x ) (C 1-d N d ) compound, wherein M is Cr, 0.55≦x≦0.98 and 0≦d≦1, where x, 1-x, d and 1-d are atomic ratios of Si, M, N and C, respectively, and the hard film has a combination of lubricity, low friction coefficient of less than 0.01 μ, wear resistance provided by a hardness of 1900-2200 HV, small specific abrasion loss of 1.20×10 −8 −5.50×10 −8 mm 3 /N-m, and adhesion of 55-67 N to a substrate in an aqueous environment.