Heat transfer in the high-temperature phase of solid SF6

Abstract

The temperature dependences of the thermal conductivity are calculated for solid SF 6 and Xe. The influence of thermal pressure in a crystal on the isochoric thermal conductivity is investigated. The contributions of the phonon-phonon and phonon-rotation interactions to the total thermal resistance of solid SF 6 are calculated using a modified method of reduced coordinates. The temperature dependence of the isochoric thermal conductivity of SF 6 is explained by a combined effect of thermal pressure and phonon-rotation interaction.