Role of the gas phase in the transition of condensed material to combustion on ignition by a radiation flux

A model of ignition and the transition to combustion in condensed material under the action of a pulse of radiant flux is outlined. Chemical reactions on both sides of the phase interface are taken into account. It is shown that taking account of the thermophysical and chemical properties of the phases has a significant effect on the limits of stable ignition. The dynamics of the basic characteristics of the process is studied with pulsed heating of gasifying condensed material.