优化屏蔽能力:硅藻土与硅酸钠混合复合材料的压力效应

IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Silicon Pub Date : 2024-09-01 DOI:10.1007/s12633-024-03120-7
K. A. Mahmoud, O. L. Tashlykov, Taha A. Hanafy, M. I. Sayyed, Islam M. Nabil
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引用次数: 0

摘要

为了进行这项研究,我们制作了五种硅藻土粘土材料样品,它们是硅藻土矿物和硅酸钠的混合物。成型压力从 22.84 兆帕到 114.24 兆帕不等,样品是在各种条件下成型的。在整个过程中,Na2SiO3 占压制样品总质量的比例始终保持在 15%。通过增加成型压力,压制样品的密度增加了约 11%。为了确定成型压力对屏蔽能力的影响,采用了蒙特卡罗模拟。当成型压力从 22.84 兆帕增加到 114.24 兆帕时,压制硅藻土样品的线性衰减从 0.123 厘米-1 提高到 0.136 厘米-1。将压力从 22.84 兆帕提高到 114.24 兆帕后,半值厚度从 5.63 厘米减小到 5.09 厘米,相当于 1 厘米纯铅金属的厚度从 10.09 厘米减小到 9.12 厘米。研究发现,对于人工制造的压制硅藻土样品,提高成型压力可增强快中子去除率。
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Optimising Shielding Capacity: Pressure Effects on Diatomaceous Earth Composite Materials mixed with Sodium Silicate

A five pressured diatomite clay materials samples were produced as a mixture of diatomaceous earth mineral and sodium silicate for the purpose of this investigation. The forming pressures ranged from 22.84 MPa to 114.24 MPa, and the samples were formed under a variety of conditions. The ratio of Na2SiO3 to the total mass of the produced pressed samples was maintained at precisely 15 wt.% throughout the process. Through the process of increasing the forming pressure, the density of the pressed samples was increased by ~ 11%. For the purpose of determining how the forming pressure will affect the shielding capacity, the Monte Carlo simulation was applied. The linear attenuation of the fabricated pressed diatomite samples improves from 0.123 to 0.136 cm−1 when the forming pressure is increased from 22.84 MPa to 114.24 MPa. By increasing the pressure from 22.84 MPa to 114.24 MPa, the half-value thickness reduced from 5.63 cm to 5.09 cm, and the thickness equivalent = 1 cm of pure Pb metal decreased from 10.09 cm to 9.12 cm. It was found that elevating the forming pressure resulted in an augmentation of the fast neutron removal for the artificially manufactured pressed diatomite samples.

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来源期刊
Silicon
Silicon CHEMISTRY, PHYSICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
5.90
自引率
20.60%
发文量
685
审稿时长
>12 weeks
期刊介绍: The journal Silicon is intended to serve all those involved in studying the role of silicon as an enabling element in materials science. There are no restrictions on disciplinary boundaries provided the focus is on silicon-based materials or adds significantly to the understanding of such materials. Accordingly, such contributions are welcome in the areas of inorganic and organic chemistry, physics, biology, engineering, nanoscience, environmental science, electronics and optoelectronics, and modeling and theory. Relevant silicon-based materials include, but are not limited to, semiconductors, polymers, composites, ceramics, glasses, coatings, resins, composites, small molecules, and thin films.
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