Electron-beam-induced surface reconstructing in vermicular alumina

被引：0
作者：
Yan Xiong
Wei Liu
Ling Wang
机构：
[1] Hubei University of Technology,Collaborative Innovation Center for Green Light
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2017年 / 32卷
关键词：
surface reconstruction; electron irradiation; alumina;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The surface reconstructing of vermicular alpha-alumina exposed under electron-beam irradiation was investigated by a scanning electron microscope with 0.5 keV beam energy and by a transmittance electron microscope at room temperature and 90 K, respectively. The in-situ recorded results showed that the present electron-beam-induced surface reconstructing was both electron dose and temperature dependent and accompanied by bulk shape change. The surface reconstruction was explained by an Auger decay process, in which surface composition constancy was proposed by the equilibrium between electron stmulated reduction of Al2O3 and oxidation of aluminum by desorbed oxygen from bulk.
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页码：888 / 892
页数：4
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