Tritium trapping capacity on metal surface
Tritium trapping capacity on metal surface
复制标题
金属表面的氚捕获能力
DOI：
10.1016/s0022-3115(99)00133-6
复制
发表时间：
2000
影响因子：
3.1
通讯作者：
Kozo Kamimae
中科院分区：
文献类型：
--
作者：
M. Nishikawa;N. Nakashio;Tomofumi Shiraishi;S. Odoi;T. Takeishi;Kozo Kamimae
经验告诉我们，氚容易附着在各种材料的表面。如果捕获到表面的氚的量与引入系统的氚的量相比不够小，则氚与系统材料的相互作用以系统特有的方式影响氚的行为。本文作者将这一现象称为氚的系统效应，并提出了用完全混合型堆和活塞流型堆串联模型来定量分析这一效应的方法。考虑到表面水由物理吸附水、化学吸附水和结构水组成，本文对不锈钢、铜和铝表面的氚捕获能力进行了定量研究。据观察，在这项研究中，在这项研究中的每种材料上的表面水的量给出了不可忽略的氚捕获能力和结构水控制的氚捕获能力时，蒸汽压低或温度高。由于氚与材料表面的相互作用高度依赖于表面条件，因此需要从材料科学的角度进行进一步的现象学讨论。
It is well known by experience that tritium is apt to stick to the surface of various materials. If the amount of tritium trapped to the surface is not small enough compared to the amount of tritium introduced to the system, interactions of tritium with the system materials affect the behavior of tritium in a manner peculiar to the system. This phenomenon has been named as the system effect of tritium by the present authors and the way to quantify this effect using the serial reactors model, connection of perfect mixed type reactors and plug flow type reactors, also has been proposed. The tritium trapping capacity on the surface of stainless steel, copper or aluminum is quantified in this study considering that the surface water consists of physically adsorbed water, chemically adsorbed water and structural water. It is observed in this study that the amount of surface water on each material in this study gives non-negligible tritium trapping capacity and that the structural water controls the tritium trapping capacity when the vapor pressure is low or when temperature is high. Further phenomenal discussion from the viewpoint of material science is required because the interaction of tritium with material surface is observed to be highly dependent on the surface condition.