Interest of TEM for the development of new out-of-equilibrium materials by crystallisation from glass

Abstract text (incl. figure legends and references)

Crystallization from glass or high temperature melt is an original synthesis route allowing the elaboration of new non-equilibrium crystalline phases. The (partial) control of the nucleation and growth phenomena, by means of thermal treatments and adapted compositions, thus allows the synthesis of original materials not accessible by classical solid reaction. These innovative materials frequently show (micro)structural order and disorder phenomena. The use of transmission electron microscopy, coupled to other characterization techniques such as diffraction or NMR spectroscopy allows a fine and multi-scale description, opening the way to the understanding and control of some observed properties