Abstract
Borotellurite glasses doped with Nd2O3 [xB2O3(95-x)TeO25Nd2O3] have been prepared by the standard melt-quenching technique. Amorphous nature of the present system was estimated by XRD patterns. The thermal parameters like glass transition temperature (Tg), crystallization (Tc) and melting (Tm) temperatures have been estimated from differential scanning calorimetry (DSC) traces. Density and molar volume have been determined. It was found that Tg is increased due to increasing number of Te-O bonds were replaced by a number of stronger B-O bonds whereas density was decreased with an increase in B2O3 content is due to the higher degree of cross-bonding between the Boron and non-bridging oxygen ions resulting in a strengthening of glass network.
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