Abstract

Abstract—There are model for calculating the latent heat of fusion of pure metals, included the contribution of the phonon “analogue of the Casimir force” to the melting of metals. The model makes it possible to explain the mismatch between the experimental value of the latent heat of melting and the theoretically calculated sum of the jump in the configuration and vibrational entropy during the phase transition from solid to liquid. The described approach also makes it possible to estimate the magnitude of the volume change during melting using the values of the crystallogeometric and thermodynamic parameters of the material.

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