Chromic oxide coatings by thermal decomposition of chromic acid

Details Chromic oxide coatings by thermal decomposition of chromic acid Chromic oxide coatings by thermal decomposition of chromic acid

1993-07-28

1995-01-10

Bell, Janyce

Coating processes

Heat decomposition of applied coating or base material

427343, 427380, 4274193, 427431, B05D 302

Patent

active

053805542

ABSTRACT:
A diamond, ceramic, metal, or metal alloy surface is coated with molten Csub.3. The coated surface is then heated in air at a temperature of from about 200.degree. C. to 250.degree. C. until the molten CrO.sub.3 coating is converted into a black, powdery adherent coating of CrO.

REFERENCES:
patent: 3749595 (1973-07-01), Foucry
patent: 3956531 (1976-05-01), Church et al.
patent: 3985916 (1976-10-01), Church et al.
patent: 4382104 (1983-05-01), Smith et al.

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