Combustion and autowave chemical transformations of a highly exothermic CaCrO4/Al/B mixture

Abstract

The combustion of a highly exothermic mixture of calcium chromate with aluminum and boron has been studied. It has been shown that these mixtures are able to burn in a wide range of reactant ratios. The autowave chemical transformation is accompanied by decomposition of calcium chromate, the chemical reaction of the decomposition products with aluminum and boron, the formation of a two-phase melt of the combustion products with its subsequent gravity separation, and crystallization of the layers. The results of the study may be useful for obtaining chromium borides.