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Erschienen in: Journal of Electronic Materials 6/2023

22.03.2023 | Original Research Article

Effect of La2O3 Concentration on the Structural, Optical and Radiation-Shielding Behaviors of Titanate Borosilicate Glasses

verfasst von: Kh. S. Shaaban, B. M. Alotaibi, El Sayed Yousef

Erschienen in: Journal of Electronic Materials | Ausgabe 6/2023

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Abstract

In this investigation, many aspects of the structural, optical, and radiation-shielding effectiveness of glasses with the formula xLa2O3-(20 − x) TiO2-23SiO2-57B2O3 were assessed. The XRD patterns of the as-quenched sample demonstrated their glassy nature. With the addition of La2O3 content, the density, refractive index, ion concentration, and field strength increased significantly. Due to the interchanging dominance of bridging oxygen (BO) in the glass network, optical spectroscopy showed that the indirect optical band gap (Eopt) decreased from 3.79 eV to 3.41 eV as the La2O3 content increased, whereas the Urbach energy (Eu) increased from 0.281 eV to 0.311 eV. The structural modifications to the glass network were explored in relation to this change. The conversion of BO3 into BO4 tetrahedral units in the glasses was detected by FTIR spectra. Phy-X/PSD software was used to estimate the radiation-shielding characteristics of the glass sample for the 15 keV–15 MeV photon energy range. In comparison to other glasses, the current glass technology demonstrated superior gamma radiation- and neutron-shielding performance.

Graphical Abstract

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Metadaten
Titel
Effect of La2O3 Concentration on the Structural, Optical and Radiation-Shielding Behaviors of Titanate Borosilicate Glasses
verfasst von
Kh. S. Shaaban
B. M. Alotaibi
El Sayed Yousef
Publikationsdatum
22.03.2023
Verlag
Springer US
Erschienen in
Journal of Electronic Materials / Ausgabe 6/2023
Print ISSN: 0361-5235
Elektronische ISSN: 1543-186X
DOI
https://doi.org/10.1007/s11664-023-10347-4

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