Amorphization of Ionic Salts in Nanocomposites

Analysis of experimental data obtained for nanocomposites AgI-Al₂O₃, RbNO₃-Al₂O₃ and CsHSO₄-SiO₂ shows that unusual physical properties of ionic salts in the nanocomposite are caused by the presence of amorphous interface phases. Thermodynamic reasons of the formation of nanocomposite are considered and the criterion of spontaneous spreading the ionic salt along the oxide surface is proposed. Possible reasons of the stabilisation of the amorphous phase in composite are discussed. Concentration and thickness of the interface layer are estimated.