In-situ TEM study on microstructural evolution of nanostructured TiO2

被引：1
|
作者：
Shao, Yanqun
Tang, Dian [1 ]
Xiong, Weihao
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Die & Mould Technol, Wuhan 430074, Peoples R China
[2] Fuzhou Univ, Inst Mat Res, Fuzhou 35000, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2007年 / 22卷 / 02期
基金：
中国国家自然科学基金;
关键词：
electron beam; sol-gel technique; TiO2; phase transformation; microstructure;
D O I：
10.1007/s11595-005-2209-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of electron beam on the microstructures and phase transformation of nano-structured TiO2 heat treated at various temperatures for different time was studied by in-situ TEM and SAED. Anatase ex-situ heated at 250 degrees C and 360 degrees C transformed to rutile while irradiated by the electron beam. With the increasing sizes and distribution of the powders on the amorphous carbon, the process of phase transformation by the electron beam was encumbered. These evolutions may be due to the changes of vacuum atmosphere and the properties of powders.
引用
收藏
页码：209 / 213
页数：5
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