Article

Thermophysical Properties of Materials
2018. V. 56. № 2. P. 177–183
Bodryakov V.Yu.
Joint study of temperature dependences of thermal expansion and heat capacity of solid beryllium
Annotation
This work presents the detailed joint study of temperature dependences of thermal expansion and heat capacity of solid beryllium. It is shown that, as for the earlier studied solid bodies, within the limits of experimental and statistical errors, the heat capacity $C(T)$ and the temperature coefficient of volume expansion $\beta(T)$ in the entire range of the HCP-phase of metal are in a pronounced correlation $\beta(C)$ that has a typical (as earlier) “bilinear” form consisting of two smoothly conjugate linear sections with the up-fracture hitting the classical Dulong and Petit heat capacity limit $3R$. The consistent values of the heat capacity obtained and the thermal expansion are tabulated and an estimate of the temperature dependence of the Gru?neisen differential parameter $\gamma' \sim (\partial\beta/\partial C)$ is given.
Article reference:
Bodryakov V.Yu. Joint study of temperature dependences of thermal expansion and heat capacity of solid beryllium, High Temp., 2018. V. 56. № 2. P. 177