Disordered coating

Details Disordered coating Disordered coating

1983-09-23

1987-12-29

Tung, T.

Stock material or miscellaneous articles

Composite

Of metal

20419215, 20419216, 428698, B32B 900, B32B 1518, C23C 1400

Patent

active

047160837

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 embodiment, 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 substrate during sputtering.
In accordance with one embodiment, the disordered boron and carbon coating is of a composition B.sub.x C.sub.1-x where x is from about 0.60 to about 0.90.

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