Electrical and gamma ray shielding characteristics of zinc-borovanadate glasses mixed with MnO

IF 1.9 4区材料科学 Q3 Materials Science

Journal of the Australian Ceramic Society Pub Date : 2023-01-20 DOI:10.1007/s41779-023-00840-8

Ashwini Devidas, T. Sankarappa, Amarkumar Malge, Mohansingh Heerasingh, B. Raghavendra

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引用次数: 2

Abstract

A set of glasses of composition, (ZnO)_0.3-(V₂O₅)_0.6 − x-(B₂O₃)_0.1-(MnO)_x, where x = 0.05 to 2, was synthesized by melt quenching method. The powder XRD studies revealed nanocrystalline phase of the samples. Room temperature density is found to increase and molar volume to decrease with MnO concentration. Conductivity of the glasses has been measured for the temperature range 303–523 K. The conduction mechanism at high temperature is found to be consistent with Mott’s small polaron hopping and Greaves variable range hopping at low temperature. Gamma ray shielding characteristics were evaluated using Phy-X/PSD software for the energy range 0.005–15 MeV. Mass attenuation coefficient (MAC) and linear attenuation coefficient (LAC) were found to be maximum at 0.005 MeV for all the samples. Observed variations of all the shielding characteristics showed evidence for photoelectric dominance at low energy and pair production at high energy levels. Half value layer (HVL), tenth value layer (TVL) and mean free path (MFP) increased with an increase in energy. MFP decreased with an increase of MnO content. Electron density (N_eff) decreased with an increase of energy. Equivalent atomic number (Z_eq) of the samples is found to be higher than the marbles of different colours and black granite. These results indicate that the present glasses are the suitable candidates for nuclear radiation (gamma rays) shielding at lower energy.

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掺MnO的硼钒酸锌玻璃的电屏蔽和γ射线屏蔽特性

采用熔体淬火法制备了一组(ZnO)0.3-(V2O5)0.6−x-(B2O3)0.1-(MnO)x的玻璃，其中x = 0.05 ~ 2。粉末XRD研究表明样品呈纳米晶相。随着MnO浓度的增加，室温密度增大，摩尔体积减小。在303 - 523k温度范围内测量了玻璃的电导率。高温下的传导机制与Mott的小极化子跳变和Greaves的变范围跳变是一致的。使用Phy-X/PSD软件对能量范围为0.005-15 MeV的射线屏蔽特性进行了评估。质量衰减系数(MAC)和线性衰减系数(LAC)在0.005 MeV时最大。观察到的所有屏蔽特性的变化表明，在低能量下存在光电优势，在高能量下产生对。半值层(HVL)、十值层(TVL)和平均自由程(MFP)随能量的增加而增加。MFP随MnO含量的增加而降低。电子密度(Neff)随能量的增加而减小。样品的等效原子序数(Zeq)高于不同颜色的大理石和黑色花岗岩。这些结果表明，目前的玻璃是较低能量的核辐射(伽马射线)屏蔽的合适候选者。

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来源期刊

Journal of the Australian Ceramic Society MATERIALS SCIENCE, CERAMICS-

CiteScore

3.20

自引率

5.30%

发文量

审稿时长

>12 weeks

期刊介绍： Publishes high quality research and technical papers in all areas of ceramic and related materials Spans the broad and growing fields of ceramic technology, material science and bioceramics Chronicles new advances in ceramic materials, manufacturing processes and applications Journal of the Australian Ceramic Society since 1965 Professional language editing service is available through our affiliates Nature Research Editing Service and American Journal Experts at the author''s cost and does not guarantee that the manuscript will be reviewed or accepted