METHOD OF OBTAINING ZIRCONIUM NITRIDE Russian patent published in 2014 - IPC C01B21/76 

FIELD: chemistry.

SUBSTANCE: method of obtaining zirconium nitride consists in carrying out self-propagating high-temperature synthesis of an exothermic mixture, which consists of zirconium oxide and an energy component, in the presence of a nitriding agent. Heat-treatment of intermediate products is performed by interrupting the process of burning in 20-90 seconds after initiation; an activating additive of yttrium oxide nanopowder is additionally introduced into the exothermic mixture; zirconium nanopowder is used as the energy component. The size of zirconium oxide particles is 500-1000 times smaller than the size of zirconium particles, with the following component ratio, wt %: energy component - 60-100, zirconium oxide - 0-40, activating additive (introduced over 100%) - 1-3.

EFFECT: increased output of zirconium nitride with simplicity of its obtaining.

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