Mechanical, optical, and gamma-attenuation properties of a newly developed tellurite glass system

Abstract

ObjectiveThis study presents an experimental evaluation of the optical properties of a newly developed 75TeO2-5Na2O-(20-x)BaO-xTiO2 (with x = 0; 5; 10; 15) glass system. Moreover, we examine the mechanical and gamma attenuation features of the studied glasses. MethodThe glasses were prepared by the melt and rapid quench method; gamma attenuation coefficients were obtained through FLUKA simulations and XCOM computations; UV-Vis data were used to estimate the optical parameters of the glasses; while the mechanical quantities were estimated theoretically. ResultsThe optical, mechanical, and gamma radiation absorption quantities showed fluctuations as the chemical composition of the glasses changed. The refractive index changes from 2.35 to 2.43 while the optical bandgap and transmission declines from 3.20 eV and 72% to 2.88 eV and 70% respectively as the molar concentration of TiO2 changes from 0−15 mol%. The computed Young’s, bulk, shear, and longitudinal modulus increased from 210.31 to 256.53, 126 – 158.92, 91.90 – 111.33, and 249.11 – 307.35 GPa respectively for increasing TiO2 content. The calculated gamma radiation shielding parameters shielding effectiveness of the glasses narrowly trend in the order of TNB-Ti00 > TNB-Ti05 > TNB-Ti10 > TNB-Ti15. ConclusionCompared to conventional glass shields and shielding concrete, the present glasses are superior. The optical, mechanical, and shielding qualities of the investigated glass system reveal their huge potentials in optical and structural shielding applications in radiation facilities.