Microstructure and micro/macro-diffusion behavior of tritium in bentonite
Microstructure and micro/macro-diffusion behavior of tritium in bentonite
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DOI：
10.1016/j.clay.2003.09.013
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发表时间：
2004-08
影响因子：
5.6
通讯作者：
Y. Ichikawa;K. Kawamura;N. Fujii;K. Kitayama
中科院分区：
文献类型：
--
作者：
Y. Ichikawa;K. Kawamura;N. Fujii;K. Kitayama
研究了氚水在膨润土中的扩散。该方法提供了一个连续的过程中的微观表征的粘土共聚焦激光扫描显微镜（CLSM），分子动力学（MD）模拟和微观/宏观分析的均匀化分析（HA）的方法，其中使用的显微镜表征和MD模拟的结果。计算结果与实验数据吻合较好。在此基础上，模拟了HTO在高放废物管理屏障系统中的扩散行为。
Diffusion of tritium water, HTO, in bentonite clay is investigated. The method provides a sequential procedure of microscopic characterizations of the clay by a confocal laser scanning microscope (CLSM), the molecular dynamics (MD) simulation and the micro-/macro-analysis by the homogenization analysis (HA) method in which the results of the microscope characterizations and the MD simulations are used. The diffusion properties of HTO calculated by HA agree with the experimental data. Then we simulate the diffusion behavior of HTO in the barrier system of high-level radioactive waste management.