An exploration of the physical, optical, mechanical, and radiation shielding properties of PbO-MgO-ZnO-B2O3 glasses

被引:5
作者
Aloraini, Dalal A. [3 ]
Kumar, Ashok [1 ,2 ]
Almuqrin, Aljawhara H. [3 ]
Abualsayed, Mohammad Ibrahim [4 ,5 ]
机构
[1] Univ Coll Benra, Dhuri 148024, Punjab, India
[2] Punjabi Univ, Dept Phys, Patiala 147002, Punjab, India
[3] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Dept Phys, POB 84428, Riyadh 11671, Saudi Arabia
[4] Isra Univ, Fac Sci, Dept Phys, Amman, Jordan
[5] Imam Abdulrahman bin Faisal Univ IAU, Inst Res & Med Consultat IRMC, Dept Nucl Med Res, POB 1982, Dammam 31441, Saudi Arabia
来源
OPEN CHEMISTRY | 2023年 / 21卷 / 01期
关键词
electronic polarizability; glass; mechanical properties; elastic moduli; optical basicity; gamma ray shielding; OXIDE;
D O I
10.1515/chem-2023-0104
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This study presents the results of an investigation into the physical, optical, and mechanical characteristics of glasses prepared from a mixture of ZnO, MgO, B2O3, and PbO. It was found that increasing the concentration of PbO in the glasses led to an increase in both the density (rho) and molar mass (M). The addition of PbO also affected the packing arrangement of oxygen atoms in the glass network, resulting in changes to the oxygen molar volume (V-o) and oxygen packing density. Furthermore, the investigation found that the optical basicity (Lambda(th)) of the glass elevated with increasing PbO concentration. Finally, the behavior of the average electronegativity (chi(av)) and electronic polarizability (alpha(-2)(o)) with respect to the concentration of PbO in the glasses is discussed, whereby the addition of PbO affected the glasses' mechanical characteristics as follows: (i) the addition of PbO increased the complexity of the glass network by enhancing the average cross-link density ((n) over barc) and the number of bonds per unit volume of the glasses (nb); (ii) the glasses' Young's modulus (E), bulk modulus (B), and shear modulus (G) declined as the mol percent of the PbO increased; (iii) the longitudinal modulus (L) reduced but remained greater than G; (iv) the glass network cross-linking reduced the Poisson ratio (sigma); (v) the glasses' fractal bond connectivity (d) values indicated a three-dimensional network; and (vi) lead oxide hardened the glass, suggesting that a stronger structure manifests. These findings collectively demonstrate that PbO improves the rigidity and interconnectivity of glass. The gamma radiationshielding characteristics of the glasses were evaluated using the Phy-X software in the 0.015-15 MeV energy range. The radiation-shielding properties of the studied glasses can be compared with other materials by introducing a new parameter known as the radiation coefficient ratio (R). It is observed that Q4 glass sample had superior shielding performance.
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页数:13
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