Получение и свойства нитридов хрома

Abstract

The preparation of refractory nitrides in the air under the conditions of thermal explosions of aluminium nanopowder mixtures with metal oxides presents practical interest both for materials science and for the theory of the reactivity of air at high temperatures. This synthesis is the least energy-intensive, and it does not require complicated equipment. Only the heating of the initialcharge is necessary for synthesis, then rhe process proceeds spontaneously. The main aim of the research is to determine experimentally compositions of combustion products of aluminum nanopowder mixtures with chromium (Ⅲ) oxide from 5:1 to 5:5 in the air, to substantiate theoretically the stabilization of chromium nitrides in the air. Method: xray analysis (diffractometer Difrey-401).