Method for producing refractory nitrides

Details Method for producing refractory nitrides Method for producing refractory nitrides

1986-04-09

1989-01-24

Doll, John

Compositions: ceramic

Ceramic compositions

Refractory

423254, 423290, 423344, 423409, 423411, 423412, 501 97, C01B 2106, C01F 700

Patent

active

048001830

ABSTRACT:
A process for making fine, uniform metal nitride powders that can be hot pressed or sintered. A metal salt is placed in a solvent with Melamine and warmed until a metal-Melamine compound forms. The solution is cooled and the metal-Melamine precipitate is calcined at a temperature below 700.degree. C. to form the metal nitrides and to avoid formation of the metal oxide.

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Iwama et al., "Ultrafine Powders of TiN and AIN Produced by a Reactive Gas Evaporation Technique with Electron Beam Heating", Journal of Crystal Growth, 56(1982), 265-269, North-Holland Pub. Co.

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