BaF2–contained tellurite glasses: Quantitative analysis and prediction of elastic properties and ultrasonic attenuation–Part I

Abstract

In this article, the semi-empirical formulas of Abd El-Moneim’s model were applied to predict the composition dependence of ultrasonic attenuation coefficient in BaF2-contained tellurite glasses, for the first time. In addition to this, the various experimental elastic moduli and Poisson’s ratio were analyzed quantitatively and predicted on the basis of the bond compression, ring deformation and Makishima-Mackenzie’s models. The results show that:•The molar volume, packing density, fractal bond connectivity, average cross-link density, number of network bonds per unit volume and average atomic ring size play a dominant role in predicting the modifier role of the alkaline earth fluoride BaF2 in binary fluorotellurite BaF2-TeO2 glasses.•The theoretically calculated values of Poisson’s ratio on the basis of the bond compression model are in a better agreement with the corresponding experimentally measured values, when compared with those theoretically calculated on the basis of Makishima-Mackenzie’s model.•The agreement between theoretical and experimental values is excellent for bulk, good for Young’s and longitudinal moduli and unsatisfactory for shear modulus. The divergence between theoretical and experimental values has been attributed to the anomalous behavior between elastic moduli and dissociation energy per unit volume of the glass.•The correlation between ultrasonic attenuation coefficient and the most significant compositional and structural parameters was achieved on the basis of Abd El-Moneim’s model.