The role of Bi2O3 on improving the physical, optical and radiation shielding properties of TeO2–BaO–ZnO glasses

Kamalam, E. Blessy; Manikandan, N.

doi:10.1007/s10854-024-13510-7

J Mater Sci: Mater Electron

2024

DOI: 10.1007/s10854-024-13510-7

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The role of Bi2O3 on improving the physical, optical and radiation shielding properties of TeO2–BaO–ZnO glasses

E. Blessy Kamalam,

N. Manikandan

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Cited by 1 publication

References 48 publications

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Optical, thermal, and radiation shielding characterization of bismuth-modified zinc-lithium-tungsten-borate glass

Usman,

Mohd Sanusi,

Ahmad

et al. 2024

Phys. Scr.

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This study examines the optical, thermal, and radiation attenuation properties of zinc-tungsten-lithium-borate glass modified with Bi2O3, synthesized using melt-quench techniques. The resulting glass samples display a significant physical property, with density increasing from 3.22 g/cm³ to 4.84 g/cm³ as Bi2O3 concentration increase from 2 to 16 mol%. The optical band gap narrows from 2.9 eV to 2.55 eV, while the refractive index increases from 2.42 to 3.49, indicating a shift in absorption to lower energy levels. Higher Bi2O3 concentrations reduce optical non-linearity while enhancing the linear optical properties of the synthesized glasses. The formation of orthoborate anions suggests that Bi3+ ions in the glasses act as network modifiers, disrupting the borate framework and introducing structural disorder. Additionally, thermal properties, including glass transition temperature (T_g), crystallization temperature (T_c), and melting temperature (T_m), decrease with increasing Bi2O3 concentration. The radiation shielding effectiveness is significantly improved, with the linear attenuation coefficient (LAC) increasing from 0.56 cm⁻¹ to 1.35 cm⁻¹ at 0.284 MeV and from 0.127 cm⁻¹ to 0.186 cm⁻¹ at 2.506 MeV as Bi2O3 content rises from 2 mol% to 16 mol%. For a glass thickness of 1 cm, the radiation protection efficiency reaches approximately 74% for a photon energy of 0.284 MeV in the sample doped with 16 mol% Bi2O3. The glass's remarkable combination of high transparency and effective radiation attenuation, positions it as a promising option for radiation shielding applications.

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Optical, thermal, and radiation shielding characterization of bismuth-modified zinc-lithium-tungsten-borate glass

Usman,

Mohd Sanusi,

Ahmad

et al. 2024

Phys. Scr.

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show abstract

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The role of Bi2O3 on improving the physical, optical and radiation shielding properties of TeO2–BaO–ZnO glasses

Cited by 1 publication

References 48 publications

Optical, thermal, and radiation shielding characterization of bismuth-modified zinc-lithium-tungsten-borate glass

Optical, thermal, and radiation shielding characterization of bismuth-modified zinc-lithium-tungsten-borate glass

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