Refractory carbide particles with thin outer layer of highly crystalline carbon
AssigneeGeneral Atomic Company
InventorsDavid V. Ragone, Massoud T. Simnad
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Abstract
A method of making refractory carbide particles, which method comprises heating a granule containing refractory metal and carbon to a sufficient temperature to form a molten droplet of refractory carbide, carbon being included in said droplet in excess of the stoichiometric amount which combines with the refractory metal in the highest usual valence thereof, and cooling said molten droplet below the eutectic temperature within 60 seconds or less to cause a thin continuous layer of highly crystalline carbon to precipitate out on the outer surface thereof.
Claims10
A method of making refractory carbide particles, which method comprises heating a granule containing refractory metal and carbon to a sufficient temperature to form a molten droplet of refractory carbide, carbon being included in said droplet in excess of the stoichiometric amount which combines with the refractory metal in the highest usual valence thereof, and cooling said molten droplet below the eutectic temperature within 60 seconds or less to cause a thin continuous layer of highly crystalline carbon to precipitate out on the outer surface thereof.
Dependencies are inferred from the claim text.