Abstract
The physical phenomena accompanying the bulk synthesis of a composite from pure elements with addition of inert particles are analyzed. Among the main reasons, a change in thermophysical properties (heat capacity and thermal conductivity coefficient), as well as a decrease in the total heat release in a chemical reaction, are highlighted. The complex of chemical reactions is described by a total reaction with effective formal kinetic parameters. The kinetic law takes into account strong inhibition of the reaction by the layer of the synthesized product which prevents the interaction of the reagents. The effective thermophysical properties of the mixture in the reactor depend on the properties of the components and the volume fraction of inert particles. It is shown that the addition of refractory particles to the mixture leads to a slowdown in the stage of the ignition process and a more complete conversion due to the heat stored in the inert particles.
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