| In-situ TEM Study on Mierostruetural Evolution of Nanostruetured TiO2 |
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| 引用本文： | 邵艳群,唐电. In-situ TEM Study on Mierostruetural Evolution of Nanostruetured TiO2[J]. 武汉理工大学学报(材料科学英文版), 2007, 22(2): 209-213. DOI: 10.1007/s11595-005-2209-5 |
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| 作者姓名： | 邵艳群 唐电 |
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| 作者单位： | [1]State Key Laboratory of Die ＆ Mould Technology, Huazhong University of Science and Technology,Wuhan 430074, China [2]Institute for Materials Research, Fuzhou University, Fuzhou 35000, China |
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| 基金项目： | Funded by the National Natural Science Foundation of China （No. 50472002） and the Science ＆ Technical Development Foundation of Fuzhou Univcrsity（2005-XQ-02） |
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| 摘 要： | The effect of electron beam on the microstructures and phase transformation of nanostructured TiO2 heat treated at various temperatures for different time was studied by in-situ TEM and SAED. Anatase ex-situ heated at 250℃ and 360℃ 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.
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| 关 键 词： | 纳米结构 二氧化钛 原位TEM 显微结构 相变 |
| 收稿时间： | 2005-04-19 |
| 修稿时间： | 2005-04-192006-09-09 |
In-situ TEM study on microstructural evolution of nanostructured TiO2 |
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| Shao Yanqun,Tang Dian,Xiong Weihao. In-situ TEM study on microstructural evolution of nanostructured TiO2[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2007, 22(2): 209-213. DOI: 10.1007/s11595-005-2209-5 |
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| Authors: | Shao Yanqun Tang Dian Xiong Weihao |
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| Affiliation: | (1) State Key Laboratory of Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074, China;(2) Institute for Materials Research, Fuzhou University, Fuzhou, 35000, China |
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| Abstract: | The effect of electron beam on the microstructures and phase transformation of nanostructured TiO2 heat treated at various temperatures for different time was studied by in-situ TEM and SAED. Anatase ex-situ heated at 250 °C and 360 °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. Funded by the National Natural Science Foundation of China (No. 50472002) and the Science & Technical Development Foundation of Fuzhou University(2006-XQ-02) |
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| Keywords: | electron beam sol-gel technique TiO2 phase transformation microstructure |
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