Patent ID: 7166155
Filing Date: 2007-01-23
Classification: C23C,Y10T

Abstract:
1. A hard film formed by an arc-discharge ion-plating method, having a composition comprising metal components represented by Al x Cr 1-x , wherein x is an atomic ratio meeting 0.45≦x≦0.75, and non-metal components represented by N 1-α-β-γ B α C β O γ , wherein α, β and γ are respectively atomic ratios meeting 0≦α≦0.15, 0≦β≦0.35, and 0.01≦γ≦0.25; said hard film having the maximum X-ray diffraction intensity in a (200) face or a (111) face, and the binding energy of Al and/or Cr to oxygen in a range of 525–535 eV in an X-ray photoelectron spectroscopy.