The effect of inert particles on the physical laws of bulk synthesis of a composite
Physical phenomena accompanying the bulk synthesis of a composite from pure elements with the addition of inert particles are analyzed in the article. Among the main reasons, a change in the thermophysical properties (heat capacity and thermal conductivity coefficient) and a decrease in the total heat release in a chemical reaction are highlighted. The complex of chemical reactions in this case is described by the total reaction with effective formal kinetic parameters. The kinetic law accounts for the reaction retardation by the layer of the synthesized product, which prevents the interaction of 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 slows down the stage of the ignition process and leads to a more complete conversion due to the heat stored in inert particles.