Effect of boron doping on the irradiation resistance of iron phosphate glass: Insights from mechanical properties and chemical stability

IF 3.2 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of Non-crystalline Solids Pub Date : 2024-10-08 DOI:10.1016/j.jnoncrysol.2024.123238

Yutian Cao , Tianci Ou , Haoxiang Xue , Fan Yang , Chunting Wang , Junhua Li , Qian Zhou , Liang Chen , Kaihong Fang , Peng Lv

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引用次数: 0

Abstract

We investigated the ion-irradiation effects of iron phosphate glasses (IPGs) with composition of 40Fe₂O₃‒60P₂O₅ (mol%) and 10B₂O₃‒36Fe₂O₃‒54P₂O₅ (mol%), respectively, and explored the effect of boron doping on the mechanical properties and the chemical stability. Mono-ion irradiation (5-MeV Xe²⁰⁺) and sequential irradiation scenario (5-MeV Xe²⁰⁺+ 250-keV H⁺) were performed with different doses. As the Xe-dose increased, both the hardness and the Young's modulus decreased until converging to saturation, and then the hardness tended to recover. The variations in mechanical properties and water contact angle of the 10B₂O₃‒36Fe₂O₃‒54P₂O₅ were more significant than those of the 40Fe₂O₃‒60P₂O₅, indicating inferior irradiation resistance. The hardness recovery was also observed in H-ion irradiation whose energy deposition is predominated by electronic interaction, while the boron doping weakened this phenomenon. Our study contributes to understanding the long-term behavior of IPG during the underground disposal of high-level waste, and provides fundamental data to optimize the design of IPG formulations.

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掺硼对磷酸铁玻璃耐辐照性的影响：机械性能和化学稳定性的启示

我们研究了分别由 40Fe2O3-60P2O5 (mol%) 和 10B2O3-36Fe2O3-54P2O5 (mol%) 组成的磷酸铁玻璃（IPGs）的离子辐照效应，并探讨了掺硼对其力学性能和化学稳定性的影响。采用不同剂量的单离子辐照（5-MeV Xe20+）和顺序辐照（5-MeV Xe20++ 250-keV H+）方案。随着 Xe 剂量的增加，硬度和杨氏模量都在下降，直到接近饱和，然后硬度趋于恢复。与 40Fe2O3-60P2O5 相比，10B2O3-36Fe2O3-54P2O5 的机械性能和水接触角的变化更为显著，表明其抗辐照性能较差。在氢离子辐照中也观察到了硬度恢复现象，氢离子辐照的能量沉积主要是通过电子相互作用实现的，而掺硼则削弱了这一现象。我们的研究有助于理解 IPG 在地下处置高放射性废物过程中的长期行为，并为 IPG 配方的优化设计提供基础数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Non-crystalline Solids 工程技术-材料科学：硅酸盐

CiteScore

6.50

自引率

11.40%

发文量

576

审稿时长

35 days

期刊介绍： The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid. In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.