The European Physical Journal Plus ( IF 2.8 ) Pub Date : 2021-01-22 , DOI: 10.1140/epjp/s13360-020-01056-6 K A Naseer 1 , K Marimuthu 1 , K A Mahmoud 2, 3 , M I Sayyed 4, 5
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Abstract
A sequence of Bi2O3 varying barium–zincborate (BZX) glasses with the chemical composition (60-x) B2O3-20ZnO-20BaCO3-xBi2O3-0.5Dy2O3 (where x = 0, 5, 10, 15, 20, 25, and 30 in wt%) is fabricated by melt-quenching method. The fabricated samples were examined for the variation in physical, structural, elastic, and radiation-shielding properties with the Bi2O3 concentration. The structural and compositional evaluations are done using XRD and FTIR spectra. The BZX matrixes consist of the trigonal-planar and tetrahedral groups of borates, BiO3 and BiO6 units of Bi2O3, and the non-bridging oxygen in general. The average single-bond strength values substantiate the increasing ionic nature of the BZX glasses. The variation in the density and molar volume of the BZX series discussed in terms of various structural and elastic properties. The glass-coded BZ15 was found to be the best candidate for the sound-resistant applications based on the atomic packing fraction and the acoustic impedance studies. With MCNP5 simulation, the mass attenuation coefficient (MAC) values of all the samples were calculated and compared with a theoretical approach using the XCOM program. As the amount of Bi2O3 increases, the linear attenuation coefficient (LAC) increases with it at all energies. The LAC values varied between 0.2805 and 0.5269 cm−1 for the investigated glasses at 0.81 MeV. BZ30 glass is the more effective shield due to the highest MAC and LAC values.
Graphic abstract
中文翻译：
Bi 2 O 3 改性剂浓度对硼酸钡锌玻璃的影响：物理、结构、弹性和辐射屏蔽性能
抽象的
一系列 Bi 2 O 3不同的钡锌硼酸盐 (BZX) 玻璃，其化学成分为 (60- x ) B 2 O 3 -20ZnO-20BaCO 3 - x Bi 2 O 3 -0.5Dy 2 O 3 （其中x = 0 、5、10、15、20、25和30（重量%）通过熔融淬火方法制造。检查所制造的样品的物理、结构、弹性和辐射屏蔽性能随Bi 2 O 3浓度的变化。使用 XRD 和 FTIR 光谱进行结构和成分评估。 BZX 矩阵由硼酸盐的三角平面和四面体基团、Bi 2 O 3的BiO 3和BiO 6单元以及一般的非桥接氧组成。平均单键强度值证实了 BZX 玻璃离子性质的增加。从各种结构和弹性性能角度讨论了 BZX 系列的密度和摩尔体积的变化。根据原子堆积分数和声阻抗研究，发现玻璃编码的 BZ15 是隔音应用的最佳候选者。通过 MCNP5 模拟，计算所有样品的质量衰减系数 (MAC) 值，并使用 XCOM 程序与理论方法进行比较。随着Bi 2 O 3量的增加，所有能量下的线性衰减系数(LAC)也随之增加。对于所研究的玻璃，在0.81 MeV 下，LAC 值在0.2805 和0.5269 cm -1之间变化。 由于具有最高的 MAC 和 LAC 值，BZ30 玻璃是更有效的防护罩。
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