Phase state of a mixture during recondensation in a flat gap filled with inert gas

The phase state of a mixture is analyzed with respect to the temperatures of evaporation and condensation surfaces by the example of a stationary problem on carbon recondensation in a flat gap filled with inert gas. Mass and energy transfers are described by continuum equations on the assumption of local thermodynamic equilibrium. It is shown that regions with different phase states can exist in the gap; the mixture parameters may change stepwise when passing through the interfaces of these regions.