Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1997-02-12
1998-11-10
Edwards, Newton
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428614, 428615, D02G 300, B21D 3900, B32B 1500
Patent
active
058341153
ABSTRACT:
A composite of a metal infiltrated into a carbonaceous material. The carbonaceous material is 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. The composite exhibits a high degree of thermal and electrical conductivity and a low coefficient of thermal expansion.
REFERENCES:
patent: 5244748 (1993-09-01), Weeks, Jr. et al.
patent: 5410796 (1995-05-01), Weeks, Jr.
Sommer Jared L.
Weeks, Jr. Joseph K.
Edwards Newton
Technical Research Associates, Inc.
Young J. Winslow
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