Impact of HfO2 on the structural, thermal, gamma, and neutron shielding properties of boro-tellurite glasses

被引：6
作者：
Rasul, Sleman Yahya [1 ,4 ]
Aktas, Bulent [1 ]
Yilmaz, Demet [2 ]
Pathman, Abdul Fatah [2 ]
Yalcin, Serife [3 ]
Acikgoz, Abuzer [1 ]
机构：
[1] Harran Univ, Mech Engn Dept, Sanliurfa, Turkiye
[2] Ataturk Univ, Fac Sci, Dept Phys, Erzurum, Turkiye
[3] Harran Univ, Fac Art & Sci, Dept Phys, Sanliurfa, Turkiye
[4] Koya Univ, Dept Mfg & Ind Engn, Koya, Iraq
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2025年 / 174卷
关键词：
Boro-tellurite glasses; Hafnium dioxide; Thermal stability; Structural properties; Gamma shielding; Neutron attenuation; PHOSPHATE-BASED GLASSES; OPTICAL-PROPERTIES; RADIATION PROTECTION; PARAMETERS; LEAD; TRANSMISSION; SYSTEM; ENERGY; B2O3;
D O I：
10.1016/j.inoche.2025.113993
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
This study explores the structural, thermal, and radiation shielding properties of boro-tellurite glasses doped with varying concentrations of HfO2, a material relevant for radiation protection in medical and nuclear applications. The glass system, consisting of TeO2-B2O3-WO3-HfO2, was synthesized using the melt-quenching technique with HfO2 content ranging from 0 to 10 mol%. XRD and FT-IR analyses confirmed the amorphous structure and stable glass network. The addition of HfO2 notably enhanced thermal properties, as reflected by an increase in the glass transition temperature (Tg) from 402 degrees C (TBWH-0) to 419 degrees C (TBWH-10), indicating stronger bonding within the glass matrix. Gamma radiation shielding improved with higher HfO2 content, especially at lower photon energies. At 80.99 keV, the mass attenuation coefficient (MAC) increased from 2.746 cm2/g (TBWH-0) to 3.246 cm2/g (TBWH-10), demonstrating better gamma attenuation. The mean free path (MFP) decreased from 1.6299 cm (TBWH-0) to 1.4510 cm (TBWH-10) at 0.356 MeV, further enhancing shielding efficiency. The fast neutron removal cross-section (Sigma R) reached its maximum in the TBWH-3 sample, with neutron dose absorption rising by 30.68 %. Overall, the inclusion of HfO2 significantly enhances both gamma and neutron shielding performance, making these glasses promising candidates for high-radiation environments.
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页数：13
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