| Effect of Microstructure on Electrorheological Property for Pure TiO2 Particle Material |
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| 作者姓名： | Yanli SHANG Shuzhen MA Junran LI Mingxiu LI Juan WANG Shaohua ZHANG |
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| 作者单位： | [1]State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China [2]Department of Chemistry, Hebei Normal University, Shijiazhuang 050091, China [3]Department of Chemistry, Baoding Teacherrs College, Baoding 071051, China [4]School of Vehicle and Transmission Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| 基金项目： | 国家重点实验室基金，国家高技术研究发展计划(863计划)，国家重点基础研究发展计划(973计划) |
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| 摘 要： | Pure titanium dioxide （TiO2） particle materials were prepared by hydrolyzing titanium tetrachloride （TiCl4）. The microstructures of these materials were determined by X-ray diffraction （XRD）, accelerated surface area and porosimetry apparatus （BET）, and transmission electron microscopy （TEM）. The TiO2 materials obtained by calcinations under different temperatures distinctly revealed different microstructures in crystal structure type, surface area, pore size, pore volume and grain size. The relationship between the microstructure of the TiO2 materials and their electrorheological （ER） activity was investigated. Anatase titania particles have better ER performance than rutile titania particles. Amorphous TiO2 materials display higher ER activity than the crystalline titania materials. A large pore volume can be more advantageous in improving the ER effect of a particle material.
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| 关 键 词： | 二氧化钛粒子材料 温度 微观结构 电流变性 |
| 收稿时间： | 2005-04-17 |
| 修稿时间： | 2005-06-10 |
Effect of Microstructure on Electrorheological Property for Pure TiO2 Particle Material |
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| Yanli SHANG Shuzhen MA Junran LI Mingxiu LI Juan WANG Shaohua ZHANG.Effect of Microstructure on Electrorheological Property for Pure TiO2 Particle Material[J].Journal of Materials Science & Technology,2006,22(4):572-576. |
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| Authors: | Yanli SHANG Shuzhen MA Junran LI Mingxiu LI Juan WANG Shaohua ZHANG |
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| Affiliation: | State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China... |
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| Abstract: | Pure titanium dioxide (TiO2) particle materials were prepared by hydrolyzing titanium tetrachloride (TiCl4).The microstructures of these materials were determined by X-ray diffraction (XRD), accelerated surface area and porosimetry apparatus (BET), and transmission electron microscopy (TEM). The TiO2 materials obtained by calcinations under different temperatures distinctly revealed different microstructures in crystal structure type, surface area, pore size, pore volume and grain size. The relationship between the microstructure of the TiO2 materials and their electrorheological (ER) activity was investigated. Anatase titania particles have better ER performance than rutile titania particles. Amorphous TiO2 materials display higher ER activity than the crystalline titania materials. A large pore volume can be more advantageous in improving the ER effect of a particle material. |
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| Keywords: | Titanium dioxide Temperature Microstructure Electrorheolagical property |
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