Phase formation kinetics in cooperative processes of chemical gas-phase deposition

A mathematical model of chemical condensation of two-phase ultra-fine particles including local thermal and concentration microscopic inhomogeneities induced by heterogeneous physicochemical conversions is suggested. The laws governing motion of the solid - gas interface are inferred from the numerical solutions obtained at various parameters of the process. A possibility of relaxation vibrational regimes of particle growth (evaporation) is established. The conditions under which both homogeneous and gradient (in composition) condensed reaction products are formed are ascertained.