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Investigation of the Structural, Elastic, and Radiation Shielding Properties of the SiO2 –Pb3O4–ZnO –Y2O3 Glass System

  • Ali S. Alzahrani,
  • Dalal Abdullah Aloraini,
  • E. A. Abdel Wahab,
  • Kh. S. Shaaban

摘要

This work examined the SiO2–Pb3O4–ZnO–Y2O3 glasses mechanical, structural, and radiation shielding features. X-ray diffraction is a powerful technique for investigating the structural properties of these glasses. Experimental results were used to evaluate the mechanical characteristics, and the Makishima and Mackenzie model's semi-empirical approaches were used to investigate the elastic properties. Longitudinal velocity VL increase from 4935 m/s to 5325 m/s, while transverse velocity VT increase from 2520 m/s to 2905 m/s. Hardness improved from 4.41 to 8.31 GPa. The behaviour of the elastic moduli at both theoretical and experimental levels is the same. The mass attenuation coefficients (MAC), mean free paths (MFP), tenth & half-value layers (TVL), (HVL), and energy building factors (EBF) were estimated. Overall, higher MAC values were produced by a decrease in ZnO concentration and an increase in Y2O3 content. As the concentration of Y2O3 increases, the MFP, TVL, and HVL values decrease. Better radiation shielding is provided by lower MFP, TVL, and HVL values. The MFP, TVL, and HVL values are lower in the G 5 sample with the Y2O3 contribution (5%, mole). Higher concentrations of Y2O3 in glasses with a SiO2-Pb3O4-ZnO-composition were shown to have improved radiation shielding properties.