Method for coating a carbonaceous material with a molybdenum car

Details Method for coating a carbonaceous material with a molybdenum car Method for coating a carbonaceous material with a molybdenum car

1997-02-12

1999-06-22

King, Roy V.

Coating processes

Immersion or partial immersion

Molten metal or fused salt bath

4273833, 427249, 4272554, B05D 118, C23C 1632

Patent

active

059141565

ABSTRACT:
A carbonaceous material coated with a molybdenum carbide coating, the molybdenum carbide coating protecting the carbonaceous material against attack by molten metal while simultaneously providing a wetting action for the molten metal to infiltrate the carbonaceous material. The carbonaceous material is any suitable carbonaceous material such as diamond; graphite fibers, both continuous and discontinuous; carbon and graphite particulate; lampblack; and carbon-rich surfaces. The molybdenum carbide coating is produced by reacting a gaseous molybdenum compound with the surface of the carbonaceous material under a reducing atmosphere. The molybdenum carbide coated carbonaceous material is formed into a metal/carbonaceous material composite by being heated with the metal under an inert atmosphere until the molten metal infiltrates the molybdenum carbide coated carbonaceous material. The metals include copper, aluminum, magnesium, iron, nickel, cobalt, titanium, silver, gold, platinum, rhodium, tin, zinc, and alloys of these metals.

REFERENCES:
patent: 5244748 (1993-09-01), Weeks, Jr. et al.
patent: 5410796 (1995-05-01), Weeks, Jr.
Pierson, e "Handbook of Chemical Vapor Deposition (CVD) Principles, Technology and Applications", Noyes Publications, 1992, pp. 214-215.

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