Patent ID: 9346148
Filing Date: 2016-05-24
CPC Classification: B24D,C04B,C09K,C23C

Claim Text:
1. A coating on mono- or poly-crystalline diamond or diamond-containing material, the coating comprising: a first layer formed directly on the diamond or diamond-containing material, the first layer comprising a composite structure, wherein the composite structure consists essentially of a dispersed mixture of metal tungsten, tungsten monocarbide, and tungsten semicarbide phases, and wherein the mixture is alloyed with fluorine in an amount of 0.001 to 0.12 wt % calculated on the total weight of the first layer; and a second layer formed on the first layer, the second layer comprising at least tungsten alloyed with fluorine in an amount of 0.001 to 0.12 wt % calculated on the total weight of the second layer.