Stuctural, optical and radiation shielding properties of zinc boro-tellurite alumina glasses

Abstract

In this work, boro-telluride glasses with additional zinc, aluminum, and alkali-alkaline modifiers have been synthesized using the melt-quenching-annealing method. Six glasses were fabricated with composition of [(60 − x)B₂O₃-(10 + x)TeO₂-10ZnO-10Al₂O₃ 5Li₂O-5MgO] all in mol% and x varied from 0, 10, 20, 30, 40 and 50. The aim of this work is to understand the effect of changing the main glass former from B₂O₃ → TeO₂, to obtain new optical materials. To confirm the amorphous nature of these six glasses, X-ray diffraction was characterized for all six glasses from 10° to 80°. Optical absorption with wavelength range 200-800 nm in room temperature was measured, and the optical absorption coefficient α(λ) calculated to obtain the cutoff wavelength. In addition, gamma photons shielding features of the prepared K1-K6 glasses were evaluated by means of some essential parameters such as mass attenuation coefficients (μ/ρ) and effective atomic number (Zeff) at five energies between 0.356 and 1.33 MeV. No significant difference between the theoretical and simulation μ/ρ values was found. The effective atomic number results indiacte that as the TeO₂ content increases, the photons' attenuation increases. The number of interactions of gamma photons with K6 sample (which contains the maximum amount of TeO₂) is relatively high (in comparison to the rest of the samples), which results in more attenuation and thus better shielding features for K6.

Tuning the 3D Printability and Thermomechanical Properties of Radiation Shields

“…Additionally, some high-Z elements such as gadolinium and tungsten were and are still used for gamma radiation shielding [34,35]. Recently, more precise radiation shielding materials have been developed such as glasses and amorphous alloys for use in other nuclear technologies such as radiation protection and medicine [36][37][38]. The advancement in this area of materials development has also occurred with 3D printing technology, where filaments for FFF and inks for DIW have been created in contemporary research [14,[39][40][41][42][43][44].…”

Radiation Shielding Parameters for Zinc Borate and Zinc Silicate Glasses Doped with Oxides of Bismuth -A Comparative Study

“…polymers, alloys, and glasses have been reported for radiation shielding applications [7][8][9][10][11]. Heavy metal oxide (HMO) glasses have a promising future to use in radiation shielding applications because of their properties which can meet all the radiation shielding requirements [12][13][14]. Kaky et al investigated some glass samples with the chemical form of [(60 − x) B2O3-(10 + x)TeO2-10ZnO-10Al2O3-5Li2O-5MgO] all in mol% and x varied from 0 to 50.…”

Structural, Thermal and Optical Properties of Rare Earth Doped Lead-Tellurite Oxide Glasses

“…Heavy metal oxides (HMO) glasses recently have attracted much attention for photonic and radiation shielding applications due to their excellent physical and optical properties [1][2]. Independent oxide tellurite glass does not have the ability to form glass structure easily under normal conditions.…”