The impact of PbF2 on the ionizing radiation shielding competence and mechanical properties of TeO2–PbF2 glasses and glass-ceramics
Source abstract
Abstract
Abstract The influence of adding PbF2 on the elastic properties and radiation shielding competences of nine different samples labelled as TPb10-TPb90 with the form of (100-X)TeO2-XPbF2: (where X = 10–90 in steps of 10 mol%) glasses and glass-ceramics was investigated via the bond compression model and WinXcom software. The average cross-link density ( n ‾ c ) increased from 2.2 to 3.8 and the average atomic ring size (l) decreases from 0.390 to 0.356 nm with the increase of Pb ions content in the TPb10-TPb90 samples. The KBC increased from 84.47 GPa to 111.09 GPa and Young's modulus (EBC) increased from 136.89 GPa to 199.60 GPa for TPb10 to TPb90 samples. Poisson's ratio (σBC) decreased from 0.229 to 0.200, while the hardness (H) increased from 10.02 GPa to 16.59 GPa. The MAC of the glasses follows the order throughout the energy spectrum: TPb10 Z e f f while TPb10 had the least. The buildup factors of TPb10 was highest at all depths while TPb90 had the least buildup factors. The obtained results showed that the addition of Pb to the proposed samples improves their mechanical and radiation shielding properties. Therefore, TPb90 sample has a better photon, fast neutron, proton, and alpha particle absorber compared to the other eight glass species in this study.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Radiation Shielding Materials Analysis · Nuclear materials and radiation effects · X-ray Diffraction in Crystallography
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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