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首页> 外文会议>Symposium on Surface-Active Process in Materials, Cocoa Beach, Florida, January 25-29, 1999 >Progress of Corrosion and element Kinetics of HLW Glasses in Geological Burial; Evaluation by SIMS
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Progress of Corrosion and element Kinetics of HLW Glasses in Geological Burial; Evaluation by SIMS

机译：HLW玻璃在地质埋葬中的腐蚀及元素动力学研究进展； SIMS评估

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摘要

The technique of in-depth concentration profiling by Secondary Ion Mass Spectrometry (SIMS) has developed into a versatile tool for evaluating the performance of nuclear waste form materials. Several long-term studies of glasses leached in interaction with geological environments have been evaluated with SIMS. Particularly extensive international burial tests of numerous waste forms leached under reaslistic repository conditions have been conducted in Sweden (granite environment), the US (salt & brine), and Belgium (Boom Clay). SIMS profiling quantitatively monitored the in-depth distributions of up to 4- elements, including very small concentrations of simulated nuclear waste, in residual corroded layers and precipitates on leached waste forms of about 25 different compositions. Variations in leachability in dependence of composition were charted, as well as typical elemental differences in kinetic response to leaching in the different geologies of long-term repository.
机译：通过二次离子质谱（SIMS）进行深度浓度分析的技术已发展成为一种用于评估核废料形式材料性能的多功能工具。 SIMS已评估了与地质环境相互作用浸出的玻璃的多项长期研究。在瑞典（花岗岩环境），美国（盐和盐水）和比利时（动臂粘土）中，对在稀疏储存条件下浸出的多种废物形式进行了特别广泛的国际埋葬测试。 SIMS分析可定量监测残留腐蚀层中的多达4种元素的深度分布，包括非常低浓度的模拟核废料，以及约25种不同成分的浸出废料形式上的沉淀物。绘制了依赖于组成的可浸出性变化，以及在长期地质库的不同地质环境中对浸出的动力学响应中的典型元素差异。

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