Key points are not available for this paper at this time.
A theoretical study suggests a distinction between the elasticity coefficients for very high frequencies (of the elastic waves representing thermal agitation) and for low frequencies. These last coefficients should show a rapid decrease of rigidity when temperature increases, and the melting point can be said to represent the point at which the macroscopic rigidity becomes zero.
Léon Brillouin (Thu,) studied this question.