Yuqian Sun, Xiaofen Chen, Ning Chen, Buyun Zhang, Zhaoxuan Jin, Yuzhu Liang, Yuhe Pan, Kai Bai, Tieshan Wang, Haibo Peng
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引用次数: 0
摘要
硼硅酸盐玻璃已被用于固定高放射性废物（HLW）。在长期地质处置过程中，放射性核素的辐照破坏和地下水腐蚀的潜在风险可能会损害高放射性废物安全壳的完整性。在这项研究中，用 2 MeV He 离子辐照了 Na 硼硅酸盐玻璃和 Zr-Na 硼硅酸盐玻璃。在 90°C 温度下，使用 MCC-1 方法对这两种玻璃的浸出行为进行了研究。采用拉曼光谱、傅立叶变换红外光谱、电感耦合等离子体光学发射光谱和飞行时间二次离子质谱等不同技术对浸出样品和浸出液进行了分析。结果表明，He 离子辐射可加速硼硅玻璃的浸出过程。He 辐照硼硅玻璃的浸出率介于原始硼硅玻璃和 Xe 辐照硼硅玻璃之间。这一发现加深了我们对α衰变过程中与α粒子和反冲核素相关的沥滤行为差异的理解。
Effect of He ions irradiation on the leaching behavior of borosilicate glasses
Borosilicate glass has been employed for immobilization of high-level radioactive waste (HLW). During long-term geological disposal, the irradiation damage from radionuclides and the potential risk of groundwater corrosion may compromise the integrity of HLW containment. In this work, Na-borosilicate and Zr-Na borosilicate glasses were irradiated with 2 MeV He ions. The leaching behaviors of both glass types were investigated using the MCC-1 method at 90°C. Different techniques, including Raman spectroscopy, Fourier Transform Infrared Spectroscopy, Inductively Coupled Plasma Optical Emission Spectroscopy, and Time-of-Flight Secondary Ion Mass Spectrometry, were employed to analyze the leached samples and the leachate. The results indicated that He ion radiation could accelerate the leaching process of borosilicate glasses. The leaching rate of He irradiated borosilicate glass was between that of the pristine and Xe irradiated borosilicate glasses. This finding enhances our understanding of the discrepancies in leaching behavior associated with alpha particles and recoil nuclides during alpha decay.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
Papers on fundamental ceramic and glass science are welcome including those in the following areas:
Enabling materials for grand challenges[...]
Materials design, selection, synthesis and processing methods[...]
Characterization of compositions, structures, defects, and properties along with new methods [...]
Mechanisms, Theory, Modeling, and Simulation[...]
JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.
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