论文部分内容阅读
本文对作者十几年来利用高分辨电子显微学研究几种金属的初期氧化(硫化)产物的结构的成果做了概要的介绍。文中首先以分析Cu_4O为例,简要地说明了作者建立的轻原子成像法的原理。接着介绍了作者运用此法对Cu、Ni的初期氧化和Ag的初期硫化产物的研究。在对Cu_(64)O的分析中指出,利用动力散射效应实现对这种含氧量极低的初期产物中氧原子像的观测,不是在晶体的薄区域,而是在晶膜相对较厚的区域。在对Cu_4O_(0.75)的分析中指出,人们有可能不仅利用氧原子像点的几何分布,而且有可能利用像点的强弱来分析氧原子串的线密度,并推断氧原子是处于面心立方点阵的八面体空洞还是处于四面体空洞。
In this paper, we summarize the author’s research on the structure of the initial oxidation (vulcanization) products of several metals by high resolution electron microscopy for more than ten years. In this paper, the first analysis of Cu_4O as an example, a brief description of the author established the principle of light atomic imaging. Then introduced the author using this method of Cu, Ni, the initial oxidation of Ag and the initial vulcanization products. In the analysis of Cu_ (64) O, it is pointed out that the use of dynamic scattering effect to observe the oxygen atom image in the initial product with very low oxygen content is not in the thin region of the crystal but in the relatively thick film Area. In the analysis of Cu_4O_ (0.75), it is pointed out that it is possible to use not only the geometrical distribution of image points of oxygen atoms but also the intensity of image points to analyze the linear density of oxygen atom clusters and deduce that the oxygen atoms are in the face-centered Cubic lattice octahedral hollow or tetrahedral hollow.