EFFECTS OF Si SUBSTITUTION ON VARIOUS PROPERTIES OF Na₅YSi₄O₁₂-TYPE GLASS-CERAMIC Na⁺-SUPERIONIC CONDUCTORS

Abstract

Na₅YSi₄O₁₂-type glass-ceramic Na⁺-superionic conductors (Na₅YXSi) were prepared by crystallization of glasses. In the present study, polycrystalline Na5YXSi glass-ceramics have been obtained with X = B, Al, Ti, Te, Ge, P, V and Mo. The effects of X elements on the crystallization of the phase and the microstructural effects on the conduction properties of the glass-ceramics were discussed, and the crystallization kinetics of the glasses was examined by DTA analysis.