Home – Home – Jornals – Combustion, Explosion and Shock Waves 2026 number 5

The influence of the Fe + Co + Cr + Ni + Al metallic binder content, mechanical activation and compression of the samples on the maximum combustion temperature and rate, sample elongation during synthesis, mixture yield after mechanical activation, morphology and phase composition of the combustion products in the 5Ti + 3Si + x(Fe + Co + Cr + Ni + Al) system was studied. A composite material consisting of ceramics and a high-entropy silicide was obtained using self-propagating high-temperature synthesis. A two-phase high-entropy alloy consisting of solid solutions with an fcc and bcc lattice is formed during a 5-minute activation of 5Ti + 3Si + x(Fe + Co + Cr + Ni + Al) mixtures. With an increase in the metallic binder content in the mixtures, the grain size of the ceramics in the products, the maximum combustion temperature and the mixture yield after mechanical activation decrease. Compression of the samples from the initial mixtures expanded the concentration limits of combustion for the metallic binder content. The dependence of the combustion rate on the metallic binder content shows a maximum at x = 10% by weight. Activation of the mixtures increased the combustion rate and expanded the combustion concentration range depending on the binder content.