Structural and Optical Studies of Quaternary Glass System

The new tellurite glasses with chemical composition 64TeO₂-15CdO-(20-x) ZnO-xLi₂O-1V₂O₅ (x= 0, 5, 10, 15 and 20 mol %) were synthesized by traditional melt quench hardening method. The glass samples showed broad humps of typical amorphous phase in the X- ray diffraction patterns. The physical properties of glass samples such as density (ρ), molar volume (V_m), oxygen packing density (OPD), refractive index (n), molar refractivity (R_m) and metallization parameter (M) were estimated. The Fourier transform infrared spectroscopy (FTIR) studies exhibited that replacement of ZnO by Li₂O forms significantly some basic structural units of TeO₄, TeO₃/TeO₃₊₁ and ZnO₄. Differential scanning calorimetry (DSC) was employed to find out the glass transition temperature (T_g) and thermal stability ( ). The optical enthrallment studi