Metal nitride powders

Details Metal nitride powders Metal nitride powders

C - Chemistry, Metallurgy

01

B

C01B 21/06 (2006.01) C01B 21/072 (2006.01) C01B 21/076 (2006.01)

Patent

CA 2151140

A metal nitride powder can be made by heating a reactant powder that includes an oxide or hydroxide of Al, Ti or Zr to a reaction temperature in a nonreactive atmosphere. The heated reactant powder is contacted with a gaseous reactant mixture comprising a nitrogen source and a carbon source. The molar ratio of nitrogen to carbon in the gaseous reactant mixture is at least about 15. The reactant powder is maintained at the reaction temperature for a sufficient time to convert a portion of it to metal nitride powder.

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