Data which correlated the entropy of fusion with other properties of metals and other inorganic compounds were analyzed. It was shown that the occurrence of a solid-solid phase transformation decreased the magnitude of the entropy of fusion. The self-diffusion rates, within any class of solid, scaled inversely with the entropy of fusion. It was concluded that the entropy of fusion was not merely a physical parameter which described the energy changes that were associated with melting. It was instead closely related to the bulk properties of the solid, and controlled the phase-transition characteristics and self-diffusion behavior - within any group or class of solids - in a uniform and consistent manner.

Role of Entropy of Fusion in Phase Transformation and Self-Diffusion. G.P.Tiwari, J.M.Juneja, Y.Iijima: Journal of Materials Science, 2004, 39[5], 1535-46