Electrical conductivity of Li2O·B2O3·P2O5·Li2SO4 glass system
Abstract The electrical conductivity of glasses has been studied in the Li 2 O·B 2 O 3 ·P 2 O 5 ·Li 2 SO 4 system. It has been observed that Li 2 SO 4 dissolves into amorphous matrix only upto 20 m% and further addition of Li 2 SO 4 leads to crystallization. The observed conductivity results have been explained by dividing the compositions in two regions. In region I (Li 2 SO 4 ⩽20 mol%) the enhancement in the conductivity has been explained on the basis of activation energy, Li frac and incorporation of Li 2 SO 4 in the macromolecular network of the glass. The conductivity behaviour in region II (Li 2 SO 4 ⩾30 mol%) has been explained in the light of dispersion of crystalline phase into amorphous matrix.