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<p>In this work, lithium barium borate (LBB) glasses doped with varying concentrations of vanadium pentoxide (V<sub>2</sub>O<sub>5</sub>) were synthesized and systematically investigated for their thermal, electrical, and radiation shielding properties. Differential scanning calorimetry (DSC) was employed to determine the thermal stability, glass transition temperature (<i>T</i><sub>g</sub>), and thermal activation energy. Electrical characterization, including DC conductivity and activation energy, was carried out to evaluate the impact of V<sub>2</sub>O<sub>5</sub> doping on the conduction mechanism of the glass matrix. Radiation shielding parameters, including the radiation shielding efficiency, the total mass attenuation coefficient (<i>μ/ρ</i>), photoelectric absorption, Compton scattering, and pair production, were calculated using the XCOM database across the photon energy range of 0.0374–3&#xa0;MeV. Results demonstrated that increasing V<sub>2</sub>O<sub>5</sub> concentration enhanced the glass density and improved photon attenuation efficiency. Electrical conductivity also exhibited a significant increase, attributed to the formation of non-bridging oxygens and the presence of mixed valence vanadium ions (V<sup>+4</sup>/V<sup>+5</sup>), which promote polaron hopping conduction. These findings suggest that V<sub>2</sub>O<sub>5</sub>-doped LBB glasses are promising candidates for radiation shielding and electronic applications.</p>

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Enhanced Thermal, Electrical, and Radiation Shielding Properties of Lithium Barium Borate Glasses doped with V2O5

  • 期刊论文

  • 发表日期：

    2025年11月21日

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  • B. Ajay Kumar,
  • B. Sreenivas,
  • P. Indira,
  • A. K. Bhatnagar,
  • P. Hima Bindu

摘要

In this work, lithium barium borate (LBB) glasses doped with varying concentrations of vanadium pentoxide (V2O5) were synthesized and systematically investigated for their thermal, electrical, and radiation shielding properties. Differential scanning calorimetry (DSC) was employed to determine the thermal stability, glass transition temperature (Tg), and thermal activation energy. Electrical characterization, including DC conductivity and activation energy, was carried out to evaluate the impact of V2O5 doping on the conduction mechanism of the glass matrix. Radiation shielding parameters, including the radiation shielding efficiency, the total mass attenuation coefficient (μ/ρ), photoelectric absorption, Compton scattering, and pair production, were calculated using the XCOM database across the photon energy range of 0.0374–3 MeV. Results demonstrated that increasing V2O5 concentration enhanced the glass density and improved photon attenuation efficiency. Electrical conductivity also exhibited a significant increase, attributed to the formation of non-bridging oxygens and the presence of mixed valence vanadium ions (V+4/V+5), which promote polaron hopping conduction. These findings suggest that V2O5-doped LBB glasses are promising candidates for radiation shielding and electronic applications.