Thermoadjustable molecular alloys for energy storage and thermal protection: fundamental aspects and applications

Abstract

The formation, stability, and phase change behaviour of molecular mixed crystals have been studied. More than 100 phase diagrams have been determined within various families of substances. This permits the correlation of thermodynamic properties of A 1-x B x with the degree of isomorphism of the pure substances A and B. This work has led to the development of important rules which allow the prediction of syncrystallisation. Moreover, if A and B correctly chosen it is possible to obtain molecular alloys which have a high latent heat of phase transition. They are thermoadjustable by means of the composition. They can provide suitable molecular alloy phse change materials in the field of energy storage and/or thermal protection