Coating processes – Coating by vapor – gas – or smoke – Base includes an inorganic compound containing silicon or...
Patent
1987-11-12
1989-04-18
Childs, Sadie
Coating processes
Coating by vapor, gas, or smoke
Base includes an inorganic compound containing silicon or...
4272553, 4272554, 427318, 427343, C23C 1624
Patent
active
048226424
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.
REFERENCES:
patent: 3902930 (1975-09-01), Sata et al.
patent: 4579752 (1986-04-01), Dubois et al.
patent: 4714632 (1987-12-01), Cabrera et al.
A. Abba et al., "Protection of Iron Against Corrosion by Surface Siliconization", Materials Chemistry, vol. 5, 147-164, (1980).
M. Pons et al., Materials Chemistry and Physics, vol. 8, 153 (1983).
L. H. Dubois et al., "Reactivity of Intermetallic Thin films Formed by the Surface Mediated Decomposition of Main Group Organometallic Compounds", of Vac. Sci. and Tech., A2(2), 441-445 (1984).
Armor John N.
Cabrera Alejandro L.
Kirner John F.
Miller Robert A.
Pierantozzi Ronald
Air Products and Chemicals Inc.
Childs Sadie
Marsh William F.
Rodgers Mark L.
Simmons James C.
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