Generation and Superposition of Concentration and Heat Waves under Exothermic Reactions in Powder Systems

Abstract

In studying the thermal kinetics of interaction in reaction mixtures with exothermic reactions during contact melting, superposition of reaction waves, leading to energy concentration in local regions of the reacting mixture, is revealed. The local energy is relaxed through spontaneous emission of charged particles. This influences the thermal electromotive force and allows the dynamics of reaction wave interaction to be followed in the process. In such cases, the synthesis and reaction sintering are uncontrolled processes.