Temperature and volume dependence of the thermal conductivity of solid argon

Abstract

The temperature dependence of the isochoric thermal conductivity has been measured for five solid argon specimens with molar volumes between 22.14 ml and 24.06 ml. The results are in good agreement with the zero pressure data of previous workers provided that allowance is made for the thermal expansion of their specimens. Above 20 K the isochoric thermal conductivity was found to be inversely proportional to temperature as predicted by many theoretical models. The measured volume dependence of the conductivity can also be qualitatively understood in terms of these models.