Vapor phase process for the deposition of a protective metal coa

Details Vapor phase process for the deposition of a protective metal coa Vapor phase process for the deposition of a protective metal coa

1982-06-11

1984-01-24

Hoffman, James R.

Coating processes

Interior of hollow article coating

Coating by vapor, gas, mist, or smoke

427253, C03C 1302

Patent

active

044277202

ABSTRACT:
The present invention concerns a vapor phase process for the deposition of at least one protective metal coating on a metal piece. The coating is aluminum, chromium, titanium, or a derivative of these metals or alloys or mixtures. The coating is effected by the reaction of the surface of the metal piece, suitably heated in an enclosure, with a halide compound of the coating metal which is formed by the reaction, in the enclosure, between a chemical halide compound with a donor. The donor consists of the coating metal or an alloy formed in a thin sheet, the surface area being of the same order of magnitude as that of the piece to be coated, located so that the surface area faces the metal piece.

REFERENCES:
patent: 3286684 (1966-11-01), Aves

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