Method for producing refractory nitrides

Patent · Tue Jan 24 04:00:00 EST 1989

OSTI ID:6238388

Quinby, T C

A process is described for making metal nitride powders comprising: combining Melamine and a soluble metal compound in a non-reacting solvent, the metal compound having a cation capable for reacting with the Melamine to form a metal-Melamine compound; heating the Melamine and the metal compound in the solvent until in solution resulting in the formation of a metal-Melamine compound, the Melamine present in suitable excess to cause precipitation upon cooling and to minimize particle size of a metal nitride power reaction product; cooling the solution until a precipitate of the metal-Melamine compound forms; separating the precipitate from the solvent; and calcining of the precipitate in air at 600/sup 0/ to 700/sup 0/C.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4800183
• OSTI ID: 6238388
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
AMINES
AZINES
CALCINATION
CHEMICAL REACTIONS
COOLING
DECOMPOSITION
HETEROCYCLIC COMPOUNDS
HIGH TEMPERATURE
MELAMINE
NITRIDES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PARTICLE SIZE
PNICTIDES
POWDERS
PRECIPITATION
PRODUCTION
PYROLYSIS
REFRACTORY METAL COMPOUNDS
SEPARATION PROCESSES
SIZE
SOLUBILITY
SOLVENTS
SYNTHESIS
THERMOCHEMICAL PROCESSES
TRIAZINES