Bi2O3和Y2O3共掺杂对多元素基微晶玻璃结构和核屏蔽性能的影响

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-05-01 DOI:10.1016/j.ceramint.2025.01.574

Norah Salem Alsaiari , Usman Iliyasu , Erhan Ibrahimoglu , M.S. Al-Buriahi

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引用次数: 0

摘要

本研究探讨了共掺杂Bi2O3和Y2O3 （Bi-Y）对熔融和粉末冶金制备的B2O3 -ZrO2 -Na2O -K2O -SiO2 -Al2O3 -ZnO -CaO微晶玻璃的影响，该微晶玻璃具有潜在的光子和中子屏蔽应用。能量色散x射线能谱（EDS）和扫描电镜（SEM）结果表明，未掺杂体系的密度为2.68 g/cm3，均匀性较好，而在20 wt% Bi-Y时，出现孔隙和部分不均匀性，密度增加到3.12 g/cm3。在0.5 kg的载荷下，维氏硬度值从6.27 Gpa提高到12.42 Gpa，断裂韧性值（通过Palmqvist模型测量）在20 wt%的Bi-Y共掺杂下提高了33%。在0.015 MeV下，未掺杂和共掺杂20% Bi-Y的材料的质量和线性衰减系数从10.5226增加到20.7356 cm2/g，从28.2006增加到64.6951 cm−1，而平均自由程（MFP）从0.0355减少到0.0155 cm，表明了明显的成分依赖关系。20 wt% Bi-Y掺杂样品的有效中子去除截面比一些普通中子屏蔽材料的有效中子去除截面大0.0939 cm−1，表明在光子和中子屏蔽方面具有双重应用潜力。

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Influence of Bi2O3 and Y2O3 co-doping on the structural and nuclear shielding properties of multi-elemental based glass-ceramics

This study explores the effects of co-doping Bi₂O₃ and Y₂O₃ (Bi-Y) on B₂O₃ -ZrO₂ -Na₂O –K₂O -SiO₂ -Al₂O₃ -ZnO -CaO glass-ceramics, produced via melting and powder metallurgy, for potential photon and neutron shielding applications. The Energy-Dispersive X-ray Spectroscopy (EDS) and Scanning Electron Microscopy (SEM) results showed that the undoped system had density of 2.68 g/cm³ and good homogeneity, while at 20 wt% Bi-Y, porosities and partial inhomogeneity appeared, with density increasing to 3.12 g/cm³. The Vickers hardness values increased from 6.27 Gpa to 12.42 GPa under a 0.5 kg load, and fracture toughness values (measured via the Palmqvist model) improved by 33 % with 20 wt% Bi-Y co-doping. The radiation shielding properties shows enhancement in mass and linear attenuation coefficient from 10.5226 to 20.7356 cm²/g and from 28.2006 to 64.6951 cm⁻¹, while the Mean Free Path (MFP) decrease from 0.0355 to 0.0155 cm for the undoped and co-doped with 20 wt% Bi-Y, at 0.015 MeV, indicating a clear compositional dependence. The effective neutron removal cross-sections of 20 wt% Bi-Y doped sample were 0.0939 cm⁻¹ greater than those of some common neutron shielding materials, indicating the potential for dual application in both photon and neutron shielding.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.