On intel-coupling between elastic and thermal features of the solids

For solids of one structure type thermodynamic Gryunizen's parameter depends linear on value y3=(2 + - 2u), which is a function of Poisson. We can possibly conduct certain categorization of solids on the nature of certain dependencies. It is shown that Gryunizen's parameter yD is an unambiguous function of a relation between dilatation and crosscut velocities of sound waves.