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Application of Diamond-Like Carbon Coatings to Cobalt-Cemented Tungsten Carbide Components

Abstract: 

The present invention uses ion beam assisted deposition to adhere a diamond-like carbon coating to a cobalt-cemented tungsten carbide substrate, resulting in the following gradient at the surface of the substrate: substrate/(metal-silicide or metal-germanide)/(silicon or germanium)/(silicon carbide or germanium carbide)/DLC.

Patent Number: 
5,731,045
Date Of Issue: 
03/24/1998
Inventors: 

Geoffrey Dearnaley;James Lankford, Jr.