Refractory carbide particles with thin outer layer of highly crystalline carbon

Refractory carbide particles with thin outer layer of highly crystalline carbon

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 wit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: RAGONE, DAVID V, SIMNAD, MASSOUD T
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung: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.