Production of high purity ultrafine metal carbide particles

Chemistry of inorganic compounds – Boron or compound thereof – Binary compound

Reexamination Certificate

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C422S186000, C423S345000, C423S439000, C423S440000

Reexamination Certificate

active

07438880

ABSTRACT:
The production of ultrafine metal carbide powders from solid metal carbide and nitrogen-containing material is disclosed. The starting materials are fed together or separately to a plasma system where the solid metal carbide is melted and/or vaporized in the presence of nitrogen to form ultrafine metal carbide particles of high purity.

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