郁金南

• 1: 原子能研究院

摘要(Abstract)：

本文用非平衡统计原理和方法描述辐照下微观结构演化的物理体系,演译出气泡和间隙原子团的分布函数的演化方程组,其数字解得出气泡和间隙原子团的分布函数,它们直接与高能质子辐照实验结果相比较,获得一致的结果;并预示高纯铝辐照硬化主要来自高浓度的间隙原子团。嬗变杂质对间隙原子团形核很敏感,没有杂质,间隙原子团浓度要低4个量级。气泡和间隙原子团的生长涨落系数与辐照温度成指数关系,对铝的激活能分别是0.4eV和1.215eV。实验上气泡平均浓度与辐照温度亦成指数关系,其激活能与气泡涨落系数的激活能相近,印证着气泡生长的非平衡热力学性质,气泡生长的热涨落项促进着气泡的生长。

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基金项目(Foundation):

作者(Author): 郁金南

参考文献(References)：

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