Coating processes – Coating by vapor – gas – or smoke – Base includes an inorganic compound containing silicon or...
Patent
1985-12-11
1987-12-22
Childs, Sadie L.
Coating processes
Coating by vapor, gas, or smoke
Base includes an inorganic compound containing silicon or...
4272554, 427318, 427343, C23C 1624
Patent
active
047146320
ABSTRACT:
A silicon diffusion coating is formed in the surface of a metal article by exposing the metal article to a reducing atmosphere followed by treatment in an atmosphere of 1 ppm to 100% by volume silane, balance hydrogen or hydrogen inert gas mixture. Hydrogen with a controlled dew point is utilized as a surface preparation agent and diluent for the silane.
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Cabrera Alejandro L.
Kirner John F.
Miller Robert A.
Pierantozzi Ronald
Air Products and Chemicals Inc.
Childs Sadie L.
Marsh William F.
Simmons James C.
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