Lithium ion conductivity, crystallization tendency, and microstructural evolution of LiZrxTi2-x(PO4)3 NASICON glass-ceramics (x = 0 - 0.4)

In this research, NASICON type (LiZrXTi2-X(PO4)3) glass-ceramics were fabricated (x = 0.1, 0.2, 0.3, 0.4). Lithium-ion conductivity along with the crystallization tendency and microstructural features examined in regard. Parent glasses obtained through melt quenching converted to glass-ceramic specimens after one-step heat treatment procedure. The resultant deeply explored by means of different techniques including scanning electron microscope, differential thermal analysis, X-ray diffractometry, ionic measurements. According results, presence Zr4+ ions glass network its gradual increase caused enhanced temperature as well declined crystallinity microstructure coarsening. all studied glass-ceramics, LiT2(PO4)3 solid solution was dominant crystalline phase partly substituted structure phase. Moreover, composition resulted diminished lithium-ion corresponded at ambient temperature. Consequently, total specimen highest level ZrO2 0.4) measured be 0.78 x 10-5 Scm-1, being considerably less than base 0) (3.04 Scm-1). It seems that containing decreases required connectivity between free paths is responsible for these specimens.