Disordered coating and method

Details Disordered coating and method Disordered coating and method

C - Chemistry, Metallurgy

23

C

117/236, 204/96.

C23C 14/14 (2006.01) A61C 3/02 (2006.01) C23C 14/06 (2006.01) C23C 30/00 (2006.01)

Patent

CA 1234776

ABSTRACT A coating and method of depositing it is provided. The wear resistant coating comprises a thin layer of disordered boron and carbon applied to a substrate. The coating has good adherence and provides good resistance to wear so that it is useful as a tool coating. In a more specific embodi- ment, the coating is disordered boron carbide. The coating can have a high gloss and can also be used as a decorative coating. The coating can be made by sputtering boron and carbon onto a substrate. A bias voltage may be applied to the sub- strate during sputtering. In accordance with one embodiment, the disordered boron and carbon coating is of a composition BxC1-x where x is from about 0.60 to about 0.90.

463594

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