Coating processes – Coating by vapor – gas – or smoke
Patent
1977-11-07
1979-04-03
Pianalto, Bernard D.
Coating processes
Coating by vapor, gas, or smoke
427249, C23C 1100, C23C 1300
Patent
active
041478207
ABSTRACT:
A method for producing a hard deposit on a substrate is described wherein a volatile halide of tungsten or molybdenum is reacted with carbon monoxide and water vapor to effect the deposition on a substrate of a compound of the metal in a liquid phase. The liquid phase deposited on the substrate is then reacted to remove oxygen and halogen and produce a hard deposit containing the metal and carbon. Also described are products which may be producted by the above method.
REFERENCES:
patent: 3574672 (1971-04-01), Tarver
Chemetal Corporation
Pianalto Bernard D.
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