The effects of crystallization parameters on the ionic conductivity of a lithium aluminum germanium phosphate glass–ceramic

摘要: Abstract This paper reports on a relationship between the conductivity and crystallization parameters (time temperature) of lithium aluminum germanium phosphate (LAGP) glass–ceramic. To study relationship, specific formulation LAGP [Li 1+ x Al Ge 2− (PO 4 ) 3 (  = 0.5)] glass was chosen. The crystallized at different temperatures times it characterized for microstructures ionic conductivity. highest total glass–ceramic material, 4.22 × 10 −3  S cm −1 27 °C, obtained by crystallizing 825 °C 8 h. superionic in specimens is attributed to space charge-mediated effect resulting from presence dielectric phase (AlPO ). impurity AlPO imparted characteristic non-linearity Arrhenius plots. A decrease with an increase temperature time observed. observed explained basis blocking increased concentration or size phase, . thermally unstable nature reflected parameters. Conductivity believed be significantly affected charge effects that originate relate time.