模拟核废料Nd2O3在花岗岩衍生玻璃陶瓷中的封装

IF 1.6 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-08-05 DOI:10.1007/s10967-025-10287-9

Ran Tan, Xiaoyan Shu, Wenhong Han, Jiaqin Wei, Mingfen Wen, Zhanqiang Li, Xirui Lu

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引用次数: 0

摘要

实验结果表明，花岗岩的碱金属含量为9.13 wt.%，固溶极限为25 wt.%。在向玻璃态过渡和完全玻璃化期间，Q3的比例增加，而Q1的比例减少。超过固溶极限后，Q3结构的比例降低，Q1和Q2结构的比例增加。因此，Q3被认为是废物形态的关键部分。最大维氏硬度为6.06 GPa，最大密度为2.95 g·cm−3。42 d后，Nd3+的标准化浸出率为4.01 × 10-8 g·m−2·d−1。图形抽象

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Encapsulation of simulated nuclear waste Nd2O3 in a granite derived glass–ceramic

The experimental results showed that 9.13 wt.% of alkali metal of granite, solid solubility limit was 25 wt.%. During the transition to the glassy state and the complete vitrification period, the proportion of Q³ increased, while the proportions of Q¹ decreased. When exceeding the solid solubility limit, the proportion of Q³ structure decreased, and the proportions of Q¹ and Q² structures increased. Therefore, Q³ was considered the key part of waste form. In addition, the maximum Vickers hardness was 6.06 GPa and the maximum density was 2.95 g·cm⁻³. After 42 d, the normalized leaching rate of Nd³⁺ was 4.01 × 10^–8 g·m⁻²·d⁻¹.

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.