THE ROLE OF IONS THERMAL DIFFUSION IN SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS

摘要

A new approach to elucidating of mutual-induced physical and chemical phenomena during heterogeneous combustion in condensed systems is suggested. The decisive role of rapid thermal diffusion of ions and electron-ionic interaction is established. For self-propagating high-temperature synthesis of oxides taken as an example, the electromotive force of combustion was found to depend on the ion charge and its diffusivity. It is shown that an ionic structure of the combustion wave can be examined potentiometrically.