Gas phase deposition of aluminum using a complex aluminum halide

Details Gas phase deposition of aluminum using a complex aluminum halide Gas phase deposition of aluminum using a complex aluminum halide

1976-02-25

1979-01-02

Kendall, Ralph S.

Coating processes

Interior of hollow article coating

Coating by vapor, gas, mist, or smoke

427239, 427253, C23C 1100

Patent

active

041328167

ABSTRACT:
A gas phase aluminizing process for alloys based on Group VI B and VIII metals such as chromium, iron, cobalt and nickel is disclosed. The process is particularly useful in the coating of internal passages of complex high temperature gas turbine hardware such as blades and vanes, where it has been found that the complex aluminum halide activators used herein have a "throwing power" greater than was heretofore obtained with the conventional halide activators such as ammonium chloride in the gas phase process.

REFERENCES:
patent: 3325313 (1967-06-01), Galmich
patent: 3462288 (1969-08-01), Schmidt et al.
patent: 3486927 (1969-12-01), Gauje
patent: 3904789 (1975-08-01), Speirs et al.
patent: 3978251 (1976-08-01), Stetson et al.

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