硼钨增强硼硅酸盐玻璃的热中子-伽马射线双功能玻璃屏蔽

IF 5.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2025-06-06 DOI:10.1016/j.materresbull.2025.113606

Dalal Abdullah Aloraini , Aly Saeed

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引用次数: 0

摘要

通过将硼和钨掺入20SiO2-(20+x)B2O3-(60-4x)Na2O-3xWO3 (x = 5、10和15 mol %) （BSiW系列）中，开发了一种多功能的伽马射线和热中子玻璃屏蔽。本研究利用B2O3和WO3的协同效应来增强核应用的机械、热、光学和屏蔽性能。研究了B2O3和WO3浓度增加对结构的影响，揭示了W6+/W4+离子和BO3/BO4比在增强刚性和热稳定性方面的关键作用。BSiW玻璃具有较高的透明度。加入45和35 mol %的WO3和B₂O₃后，对1173.23 keV和1332.51 keV伽马射线的衰减率分别提高了83.4%和110.4%，对热中子的衰减率提高了237.1%。25-75 kGy的伽马辐射使透射率降低至50 kGy；而含wo3的组分在75 kGy时表现出部分恢复。热学、力学和抗辐射性的结合使BSiW玻璃具有高B2O3和WO3含量，是理想的屏蔽材料。

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Thermal neutrons-gamma rays dual-function glass shield of boron-tungsten-reinforced borosilicate glass

A versatile glass shield for gamma rays and thermal neutrons was developed by incorporating boron and tungsten into 20SiO₂-(20+x)B₂O₃-(60–4x)Na₂O-3xWO₃ (x = 5, 10, and 15 mol %) (BSiW series). This study harnesses the synergistic effect of B₂O₃ and WO₃ to enhance mechanical, thermal, optical, and shielding properties for nuclear applications. Structural effects of increased B₂O₃ and WO₃ concentrations were explored, revealing the critical role of W⁶⁺/W⁴⁺ ions and the BO₃/BO₄ ratio in enhancing rigidity and thermal stability. The BSiW glasses demonstrated high transparency. Incorporating 45 and 35 mol % of WO₃ and B₂O₃ enhanced the attenuation of 1173.23 keV and 1332.51 keV gamma rays by 83.4 % and 110.4 % and thermal neutron by 237.1 %. Gamma irradiation at 25–75 kGy decreased transmittance up to 50 kGy; however, WO₃-containing compositions showed partial recovery at 75 kGy. The combined thermal, mechanical, and radiation resistance makes BSiW glasses with high B₂O₃ and WO₃ content ideal for shielding.

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.