Lanthanum-Doped Zinc Borate Glasses: Fabrication, Structural Analysis, Thermal Properties, and Gamma Radiation Shielding Performance
| dc.contributor.author | Hordieiev, Yu. S. | en |
| dc.contributor.author | Zaichuk, A. V. | en |
| dc.date.accessioned | 2025-04-09T08:00:18Z | |
| dc.date.available | 2025-04-09T08:00:18Z | |
| dc.date.issued | 2025 | |
| dc.description | A. Zaichuk: ORCID 0000-0001-5209-7498 | en |
| dc.description.abstract | ENG: Zinc borate glasses with a composition formula of (60-m)B₂O₃–40ZnO–mLa₂O₃ (m = 0, 3, 6, 9, 12, and 15 mol%) were synthesized via the melt-quenching technique for the purpose of investigating the effects of La₂O₃ incorporation on their structural, thermal, and radiation shielding properties. Amorphous structures for all samples (coded as ZBLa0 to ZBLa15) were confirmed using X-ray diffraction and Differential thermal analysis. Incorporating La₂O₃ significantly influenced the glass matrix, increasing density, molar volume, thermal expansion and the glass transition, while decreasing the crystallization peak temperature and thermal stability. These effects highlight La₂O₃'s role as a network modifier that depolymerizes the glass structure, as indicated by shifts in FT-IR bands and altered vibrational modes. Radiation shielding properties improve markedly with La₂O₃ addition, as evidenced by increased mass attenuation coefficients and effective atomic numbers, making the glass with 15 mol% La₂O₃ (ZBLa15) particularly effective at gamma-ray attenuation across a wide photon energy range. These findings suggest that La₂O₃-doped zinc borate glasses are highly suitable for applications requiring enhanced radiation shielding alongside reliable thermal performance. | en |
| dc.description.sponsorship | Ukrainian State University of Chemical Technology, Dnipro | en |
| dc.identifier.citation | Hordieiev Yu. S., Zaichuk A. V. Lanthanum-Doped Zinc Borate Glasses: Fabrication, Structural Analysis, Thermal Properties, and Gamma Radiation Shielding Performance. Journal of Ovonic Research. 2025. Vol. 21, No. 1. P. 85–94. DOI: https://doi.org/10.15251/JOR.2025.211.85. | en |
| dc.identifier.doi | https://doi.org/10.15251/JOR.2025.211.85 | en |
| dc.identifier.issn | 1584-9953 | |
| dc.identifier.uri | https://chalcogen.ro/index.php/journals/journal-of-ovonic-research?view=article&id=642&catid=12 | en |
| dc.identifier.uri | https://crust.ust.edu.ua/handle/123456789/20040 | en |
| dc.language.iso | en | |
| dc.publisher | S.C. Virtual Company of Physics S.R.L, Romania | en |
| dc.subject | zinc borate glasses | en |
| dc.subject | structure | en |
| dc.subject | glass stability | en |
| dc.subject | radiation shielding properties | en |
| dc.subject | thermal expansion | en |
| dc.subject.classification | TECHNOLOGY::Materials science | en |
| dc.title | Lanthanum-Doped Zinc Borate Glasses: Fabrication, Structural Analysis, Thermal Properties, and Gamma Radiation Shielding Performance | en |
| dc.type | Article | en |