Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1989-06-20
1993-11-16
Owens, Terry J.
Coating processes
With post-treatment of coating or coating material
Heating or drying
4273831, 4273835, 4273837, 427249, C23C 1600
Patent
active
052622029
ABSTRACT:
A method for heat treating a coated substrate is described wherein the outer coating on the substrate is comprised of a chemically vapor deposited mixture of tungsten and tungsten carbide. The coated substrate is heated to the deposition temperature or not substantially above the deposition temperature in a non-reactive atmosphere. The heat treating temperature is sufficient to confer a desired improvement in erosive and abrasive wear resistance in the outer coating but does not result in substantial degradation of the mechanical properties of the substrate or in formation of undesirable inter-metallic layers.
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Dimos Duane
Dyer Paul N.
Garg Diwakar
Air Products and Chemicals Inc.
Dang Vi Duong
Gourley Keith D.
Marsh William F.
Owens Terry J.
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