Correlation dependence of the volumetric thermal expansion coefficient of metallic aluminum on its heat capacity

Abstract

The correlation between the volumetric thermal expansion coefficient β(T) and the heat capacity C(T) of aluminum is considered in detail. It is shown that a clear correlation is observed in a significantly wider temperature range, up to the melting temperature of the metal, along with the low-temperature range where it is linear. The significant deviation of dependence β(C) from the low-temperature linear behavior is observed up to the point where the heat capacity achieves the classical Dulong–Petit limit of 3R (R is the universal gas constant).