Structure and properties of the composite material obtained by thermal explosion of a mixture of $\mathrm{Ni}+\mathrm{Al}+\mathrm{Cr}_2\mathrm{O}_3$

The synthesis of the composite material by thermal explosion of a reaction mixture of $\mathrm{Ni}+\mathrm{Al}+\mathrm{Cr}_2\mathrm{O}_3$ was studied. The thermodynamic parameters of combustion of the systems studied were estimated to predict the composition of the inorganic products (condensed or gaseous) of self-propagating high-temperature synthesis and calculate the adiabatic combustion temperature. It is shown that the synthesis process involves competing reactions in the sample volume which are responsible for the formation of a multiphase product. The influence of the content of $\mathrm{Cr}_2\mathrm{O}_3$ in the reaction system on the strength characteristics of the product synthesis. The microstructure of the synthesized samples, defined by their micro-hardness, toughness and residual porosity. The possibility of obtaining a homogeneous material based on $\mathrm{NiAl}$ intermetallic compound containing dissolved chromium and chromium oxide nanoparticles.