Patent ID: 6617057
Filing Date: 2003-09-09
Classification: C23C,Y10T

Abstract:
A wear resistant, composite vapour deposited metal-ceramic coating on a substrate capable of electrical conduction, comprising:at least one metallic layer selected from the group consisting of titanium, chromium, vanadium, aluminum, molybdenum, niobium, tungsten, hafnium, zirconium, and alloys thereof, and having a metallic layer thickness; at least one ceramic layer selected from the group consisting of nitrides, carbides, carbonitrides, oxycarbides and oxynitrides; wherein said composite, vapour deposited metal-ceramic coating has a thickness greater than 1 &mgr;m, an average exposed surface micro-roughness less than 0.1 &mgr;m and a micro-hardness in excess of 20 GPa.