Co-deposited coating of aluminum oxide and titanium oxide and me

Details Co-deposited coating of aluminum oxide and titanium oxide and me Co-deposited coating of aluminum oxide and titanium oxide and me

1976-08-09

1977-10-04

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428336, 428469, 428472, 428539, 428565, 428932, B32B 904, B32B 1504

Patent

active

040525309

ABSTRACT:
Disclosed is a method of forming dense protective coatings of co-deposited aluminum oxide and titanium oxide on wear surfaces. The coating is formed by simultaneously reacting an aluminum halide gas and a titanium halide gas with water vapor on a surface maintained at a temperature of about 900.degree. C to about 1250.degree. C. Reaction conditions are maintained to assure mixing of the titanium halide gas with the other reactants only in the reaction zone and compositions of the reactant gases are limited to produce a coating comprising alpha alumina (Al.sub.2 O.sub.3) with about 2% to about 10% hexagonal alpha titanium oxide (Ti.sub.2 O.sub.3) dispersed in the alumina matrix.

REFERENCES:
patent: 3684585 (1972-08-01), Stroup et al.
patent: 3736107 (1973-05-01), Hale
patent: 3787229 (1974-01-01), Rudness
patent: 3919124 (1975-11-01), Friedel et al.
patent: 3974322 (1976-08-01), Drabking et al.

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