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Efficiency of K2WO4 containing a newly synthesized phosphate based glasses: Physical, thermal properties, FTIR spectroscopy and γ-ray shielding parameters
Radiation Physics and Chemistry ( IF 2.8 ) Pub Date : 2024-07-18 , DOI: 10.1016/j.radphyschem.2024.112068
Hanan Al-Ghamdi , Nada Alfryyan , Norah A.M. Alsaif , Y.S. Rammah , H.A. Abo-Mosallam , Ebrahim A. Mahdy

New K2WO4-containing potassium-iron-phosphate glasses were synthesized and examined. Specifically, we studied a glass composition consisting of 20K2O-(20-Y) Fe2O3-YK2WO4–60P2O5 (where Y = 0.0, 5.0, 10.0, 15.0 and 20.0 mol%). Various characterizations such as X-ray diffraction (XRD), Fourier transform infrared spectrometer (FTIR), differential scanning calorimetry (DSC), density, and radiation-calculated shielding parameters were investigated. The XRD analyses confirmed the glassy nature of the synthesized material. The K2WO4/Fe2O3 replacement led to an increase in the density of glass and aided in the formation of non-bridging oxygen atoms. Q1 groups are the predominant structural elements within the phosphate network and decrease the rigidity and compactness of glass structures. Investigation of the thermal parameters revealed that an increase in K2WO4 content led to a decrease in the transition and crystallization temperatures, accompanied by a decrease in the glass's stability. Whereas, the values of the phosphate/oxygen (O/P) molar ratio and the change in heat capacity (ΔCp) were increased. The capacity of using the prepared W0–W20 glasses as γ-ray shields has been evaluated using Phy-X/PSD software in the photon energy range of 0.015–15 MeV. Results showed that the mass-(MAC) and linear-(LAC) absorption coefficients of samples possessed the following trends: W0(MAC, LAC) < W5(MAC, LAC) < W10(MAC, LAC) < W15(MAC, LAC) < W20(MAC, LAC). The lowest half-value layer (HVL) values were verified by the W20 sample. Therefore, the suggested compositions can be used as superior γ-ray shields compared to some concrete materials.

中文翻译:


含有新合成磷酸盐基玻璃的 K2WO4 的效率:物理、热性能、FTIR 光谱和 γ 射线屏蔽参数



合成并检验了新型含 K2WO4 钾铁磷酸盐玻璃。具体来说,我们研究了由 20K2O-(20-Y) Fe2O3-YK2WO4–60P2O5(其中 Y = 0.0、5.0、10.0、15.0 和 20.0 mol%)组成的玻璃成分。研究了各种表征,如 X 射线衍射 (XRD)、傅里叶变换红外光谱仪 (FTIR)、差示扫描量热法 (DSC)、密度和辐射计算屏蔽参数。 XRD 分析证实了合成材料的玻璃性质。 K2WO4/Fe2O3 的替代导致玻璃密度增加,并有助于非桥接氧原子的形成。 Q1 基团是磷酸盐网络内的主要结构元素,会降低玻璃结构的刚性和致密性。对热参数的研究表明,K2WO4 含量的增加导致转变温度和结晶温度降低,同时玻璃的稳定性降低。然而,磷酸盐/氧(O/P)摩尔比和热容变化(ΔCp)的值增加。使用 Phy-X/PSD 软件在 0.015-15 MeV 的光子能量范围内评估了使用制备的 W0-W20 玻璃作为 γ 射线屏蔽的能力。结果表明,样品的质量(MAC)和线性(LAC)吸收系数具有以下趋势:W0(MAC,LAC)%3C W5(MAC,LAC)%3C W10(MAC,LAC)%3C W15( MAC、LAC)< W20(MAC、LAC)。最低半值层 (HVL) 值由 W20 样品验证。因此,与一些混凝土材料相比,所建议的组合物可以用作优异的γ射线屏蔽。
更新日期:2024-07-18
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