| Preparation of Al2O3-SiO2-TiO2-ZrO2 Composite Ceramic Membranes by Sol-Gel Method |
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| 作者姓名： | WUJianfeng BAIZhanliang XUXiaohong ZHANGYing |
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| 作者单位： | [1]SchoolofMaterialScienceandEngineering,WuhanUniversityofTechnology,Wuhan430070,China [2]SchoolofMaterialEngineering,SoochowUniversity,Suzhou215000,China |
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| 摘 要： | Al2O3-SiO2- TiO2-ZrO2 supported membranes were prepared by Sol-Gel method. These composite ceramic membranes are level, even and no macro crack. There exist several crystalline phases such as Al2O3, TiO2 ( anatase ), Al2 SiO5 , and ZrO2 in these membranes. Changing the molar ratio of Al:Si: Ti : Zr ,the kinds and content of crystal phases of composite membranes could be different, which may lend to a variety of microstructure of membranes. The surface nanoscale topography and microstructure of membranes were investigated by XRD, SEM, AFM, EPMA. The effects of additives and heat treatments on the surface nanoscale topography and microstracture of composite ceramic membranes were also analyzed.
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| 关 键 词： | 溶胶凝胶 Al2O3-SiO2-TiO2-ZrO2复合陶瓷膜 显微结构 纳米外形 |
| 收稿时间： | 12 May 2004 |
| 修稿时间： | 20 November 2004 |
Preparation of Al2O3−SiO2−TiO2−ZrO2 composite ceramic membranes by Sol-Gel method |
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| WUJianfeng BAIZhanliang XUXiaohong ZHANGYing.Preparation of Al2O3-SiO2-TiO2-ZrO2 Composite Ceramic Membranes by Sol-Gel Method[J].Journal of Wuhan University of Technology. Materials Science Edition,2005,20(1):42-45. |
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| Authors: | Wu Jianfeng Ph D Bai Zhanliang Xu Xiaohong Zhang Ying |
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| Affiliation: | (1) School of Material Science and Engineering, Wuhan University of Technology, 430070 Wuhan, China;(2) School of Material Engineering, Soochow University, 215000 Suzhou, China |
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| Abstract: | Al2O3−SiO2−TiO2−ZrO2 supported membranes were prepared by Sol-Gel method. These composite ceramic membranes are level, even and no macro crack.
There exist several crystalline phases such as Al2O3, TiO2 (anatase), Al2SiO5, and ZrO2 in these membranes. Changing the molar ratio of Al:Si:Ti:Zr, the kinds and content of crystal phases of composite membranes
could be different, which may lead to a variety of microstructure of membranes. The surface nonoscale topography and microstructure
of membranes were investigated by XRD, SEM, AFM, EPMA. The effects of additives and heat treatments on the surface nanoscale
topography and microstructure of composite ceramic membranes were also analyzed. |
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| Keywords: | sol-gel method Al2O3− SiO2− TiO2− ZrO2 composite ceramic membranes surface nanoscale topography microstructure |
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