Akademik Veri Yönetim Sistemi
MATERIALS CHEMISTRY AND PHYSICS, cilt.312, 2024 (SCI-Expanded)
The objective of this study is to develop radiation-shielding glass materials with excellent physical properties by incorporating varying amounts of WO3 (x = 1, 3, 5, 10, 20 mol%) into 45B2O3-(20-x)PbO-30TeO2-5CeO2-xWO3 glasses. The glasses were synthesized using the melt casting method with B2O3-PbO-TeO2-CeO2 powders. Experimental measurements and theoretical calculations were performed to determine the mass attenuation coefficients (MAC), mean free path (MFP), half value layer (HVL), and effective atomic numbers (Zeff) of the glasses within the energy range of 59.54-661.62 keV. Additionally, the structural and mechanical properties of the synthesized glasses were evaluated using XRD, UV-Vis, FT-IR, and Micro-Vickers hardness techniques. XRD analysis indicated that all glass compositions formed amorphous structure. The addition of WO3 caused a decrease in the optical band gap energy values of the glasses. Moreover, the incorporation of WO3 enhanced the elasticity of the glasses by 17-21%. The hardness and fracture toughness values were also improved with the addition of 5% WO3, increasing from 3.53 to 4.14 GPa and from 1.07 to 1.14 MPa m0.5, respectively. The radiation shielding properties assessed through proton and alpha shielding characteristics, revealed that the addition of 20% WO3 to the glass composition allowed approximations of 82.8% of the MAC values of the glass doped with 20% PbO. Overall, the findings indicate that incorporating WO3 as a dopant improves the glasses' elastic and mechanical properties enhancing their radiation shielding ability.