离子辐照石墨生成的纳米尺寸Ar泡  

Nanoscale Ar-Bubbles Formed by Ions Irradiating Graphite

作　　者：王震遐[1] 余礼平[1] 张伟[1] 马余刚[1] 朱志远[1] 何国伟[2] 胡刚[2] 陈一[2] 

机构地区：[1]中国科学院上海原子核研究所,上海201800 [2]复旦大学材料科学系,上海200433

出　　处：《高能物理与核物理》2002年第12期1316-1319,共4页High Energy Physics and Nuclear Physics

基　　金：中国科学院知识创新工程重要方向项目 (2 60 1 0 0 3 1 )资助~~

摘　　要：用 60keV的Ni+和Ar+在相同实验条件下 ,先后分别辐照同一块石墨靶 ,剂量均为 1 0 1 8 cm2 .带能量色散X射线分析和电子衍射分析的高分辨透射电子显微镜观察和分析发现 ,尺寸不同的纳米Ar泡嵌在类玻璃碳薄片中 ,部分泡内的Ar可能已形成固体结构 .The identical graphite targets were irradiated by 60keV Ni+ and Ar+ ions with the fluences of 10 18/cm2 in turns under the same experimental conditions. Using high-resolution transmission electron microscope (HRTEM) with energy dispersive X-ray (EDX) and electron diffraction (ED), we found different-size nanoscale Ar-bubbles embedded in glass-carbon-like membranes for the first time. Moreover, in part of these nanobubbles Ar may have been formed into a solid-like structures.

关 键 词：离子辐照 石墨 Ar泡 氩泡 纳米结构 靶材料 透射电子显微镜 

分 类 号：O571.33[理学—粒子物理与原子核物理]