English

应用科学学报 ›› 1984, Vol. 2 ›› Issue (4): 302-309.

• 论文 • 上一篇    下一篇

晶体中原子排列的高分辨电子显微镜观察

叶恒强   

  1. 中国科学院金属研究所
  • 收稿日期:1983-12-04 出版日期:1984-12-31 发布日期:1984-12-31

OBSERVATIONS OF THE ATOMIC ARRANGEMENT IH CRYSTALS BY MEANS OF HIGH RESOLUTION ELECTRON MICROSCOPY

YE HENGQIANG   

  1. Institute of Metal Research, Academic, Sinica
  • Received:1983-12-04 Online:1984-12-31 Published:1984-12-31

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109

被引次数

2

摘要： 用电子显微镜直接观察晶体中原子排列的成象条件,本文作了概括的理论分析.用实例说明了三种情况:反映晶体结构及缺陷的结构象;在特殊情况下与晶体结构对应的细节可以超过仪器的分辨率的超高分辨象;二元合金中能直接反映原子有序排列的超结构象.

Abstract: The atomic arrangement in crystals can be seen directly by means of high resolution electron microscopy. An outline of the theoretical analysis for imaging conditions was given. Three kinds of high resolution images were explained with examples:structural image representing the projection of crystal structures and defects; ultra-high resolution images showing structural details beyond the point-to-point resolution under special conditions; "superstructure" image exhibiting the ordered atom columns in binary alloys.