Chemical vapor deposition of diamond coatings on hard substrates

摘要

There is provided a wear-resistant composite coated article comprising a hard substrate selected from cemented carbides, TiCN-based sintered Cermet, ceramic materials and steels, a first coating layer applied by chemical vapour deposition and consisting of a pure metal of the groups Vb and VIb of the Periodic Table, or a carbide or nitride thereof, and an outer coating layer of diamond applied by chemical vapour deposition.