Modification of structure and electrical conductivity of cadmium borate glasses in the presence of V 2O 5

Abstract

Various compositions of vanadium cadmium borate glasses have been prepared using normal melt quench technique. The changes caused by the addition of V 2O 5 on the structure of these glasses have been studied by recording the FTIR spectra over the range 400–4000 cm −1. The theoretical optical basicity has been calculated as a function of composition. The density and molar volume studies indicate that V 2O 5 in these glasses is acting as network modifier rather than network former. The temperature (373–573 K) and composition dependent direct current (DC) electrical conductivity have been reported. The variations in density, molar volume and electrical conductivity with V 2O 5 content have been discussed in terms of changes in the glass structure.