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Five glass samples with the following chemical formation: 21.5 SiO2-58.5B2O3-(20-x) ZnO- xLa2O3, where x = 0–10 mol% were fabricated utilizing melt quenching. With an increase in La2O3, the glasses' density increased from 3.174 to 4.754 g/cm3. Experimental data were used to evaluate the mechanical characteristics, and the Makishima and Mackenzie model's semi-empirical methods were used to analyze the elastic properties. As the amount of La2O3 increases, there's a noticeable rise in the velocity of ultrasonic waves. This heightened velocity is likely linked to the strengthening or increased rigidity of the glass network. Elastic moduli values of the glasses under investigation increase with an increase La2O3 content. Employing Phy-X/PSD code, the radiation attenuation behaviour of zinc borosilicate glasses with varying La2O3 concentrations were examined. With increased energy, the enhancement LAC decreases from 2.576 to 0.0375. The ZBSL10 glasses demonstrated strong mechanical and physical characteristics as well as radiation shielding capabilities. The features of the ZBSL glasses are particularly attractive for a variety of mechanical and shielding applications. [ABSTRACT FROM AUTHOR]

The composition of the pentagonal glass system, which is composed of 57B2O3-16SiO2-11BeO- (16-x) MgO-xLa2O3, x = (0 ≤ x ≤ 16 mol %), has been synthesized by the melt quench process. XRD diffractograms' wide haloes testified to the materials' amorphous state. It was discovered that, density increased in response to La2O3 concentration, whereas molar volume decreased. Additionally, the ranges of longitudinal and shear velocities are 4730 to 5085 m/s and 2685–2895 m/s, respectively. The elastic moduli for longitudinal range between 71.9–154.3 GPa, shear range between 23.2–50 GPa, bulk range between 23.2–50 GPa, and Young's range between 58.5–126 GPa, respectively. The study employed Phy-X/PSD code to examine the radiation attenuation behaviour of magnesium beryllia-borosilicate, also known as (BMBSLa) glasses, at varying concentrations of La2O3. We examined the relationship among the half value layer (HVL) and density. HVL values at a density of 3.213 g/cm3 range from 0.0087 to 11.746 cm and at density of 5.967 g/cm3 range from 0.02 to 5.727 cm at (0.015–15 MeV). Tenth value layer (TVL) and mean free path (MFP) are evaluation and comparison between HVL, TVL and MFP for the same glass at specific energy were also conducted. The glass samples under investigation are excellent candidates for usage in the field of shielding radiation because they are more transparent. [ABSTRACT FROM AUTHOR]

The structural, physical, mechanical, and radiation shielding characteristics of the glass system consisting of 27SiO2-53B2O3- 2ZnF2- (18-x) Li2O-xV2O5 (0 ≤ x ≤ 2) were studied. The glasses were fabricated using the melt-quench method. It was found that the density and molar volume of the current glasses were influenced by the V2O5 content. The structural characteristics were investigated using X-ray diffraction (XRD). Using the pulse-echo method, longitudinal and shear velocities were measured to study elastic characteristics. The radiation shielding characteristics were determined using the Phy-X program for γ rays. The densities varied from 3090 kgm−3 to 4140 kgm−3, whereas molar volume varied from 19.6 × 10–6 m3 mol−1 to 15.36 × 10–6 m3 mol−1. With the addition of V2O5, ultrasonic velocities, elastic moduli (experimentally and theoretically), hardness (H), and Debye temperature ( θ D ) were increased. It is noteworthy that the theoretically predicted elastic moduli, obtained using the (MMM) model, exhibits a remarkable agreement with the experimentally determined elastic moduli. This consistency is further corroborated by the shielding properties of the borosilicate glasses. As the V2O5 content increases and the Li2O decreases, the MAC values increase suggesting greater radiation shielding capacities. It's observed that the MAC values for G5 are higher than those for G1. Therefore, it is a great choice for application in the field of radiation shielding. [ABSTRACT FROM AUTHOR]