| Preparation and Electrorheological Property of Y4O（OH）9（NO3）-NH4NO3 Materials |
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| 引用本文： | 马淑珍,霍莉,贾云玲,商艳丽,李淑新,许明远,李俊然,张少华.Preparation and Electrorheological Property of Y4O（OH）9（NO3）-NH4NO3 Materials[J].中国稀土学报(英文版),2006,24(2):168-171. |
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| 作者姓名： | 马淑珍 霍莉 贾云玲 商艳丽 李淑新 许明远 李俊然 张少华 |
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| 作者单位： | State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular Engineering Peking University Beijing 100871 China，Department of Chemistry Baoding Teacher′s College Baoding 071051 China，Department of Chemistry Baoding Teacher′s College Baoding 071051 China，State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular Engineering Peking University Beijing 100871 China，Department of Chemistry Hebei Normal University Shijiazhuang 050091 China，State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular Engineering Peking University Beijing 100871 China，Department of Chemistry Hebei Normal University Shijiazhuang 050091 China，Department of Chemistry Baoding Teacher′s College Baoding 071051 China，Department of Chemistry Baoding Teacher′s College Baoding 071051 China，State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular Engineering Peking University Beijing 100871 China，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，中国科学院资助项目，The National Key Project for Fundamental Research |
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| 摘 要： | The new electrorheological (ER) material, a particle material composed of Y4O(OH)9(NO3) and NH4NO3, was obtained.They display better ER performance.The shear stress of the suspension of Y4O(OH)9(NO3)(NH4NO3)2.8 material in dimethyl silicone oil reaches 1469 Pa at an electric field strength (E) of 4.2 kV·mm-1 and the shear rate (γ) of 150 s-1.The relative shear stress, τE/τ0 (τE and τ0 are the shear stresses at E=4.2 and 0 kV·mm-1, respectively), is up to 29, which is 19 times that of pure Y2O3 material.The dielectric and conductive property of the materials play important roles in the modification of the ER effect of the particle materials.The researches on these new ER materials are very useful for obtaining a better understanding on the mechanism of the ER effect and finding an ideal ER material.
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| 关 键 词： | 流变性能 制备 稀土 Y4O（OH）9（NO3）-（NH4NO3） 绝缘性能 导电性能 |
| 文章编号： | 1002-0721（2006）02-0168-04 |
| 收稿时间： | 2005-06-11 |
| 修稿时间： | 2005-10-31 |
Preparation and Electrorheological Property of Y4O(OH)9(NO3)-NH4NO3 Materials |
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| Shuzhen , Li Huo, Yunling Jia, Yanli Shang, Shuxin Li, Mingyuan Xu, Junran Li,Shaohua Zhang.Preparation and Electrorheological Property of Y4O(OH)9(NO3)-NH4NO3 Materials[J].Journal of Rare Earths,2006,24(2):168-171. |
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| Authors: | Shuzhen Li Huo Yunling Jia Yanli Shang Shuxin Li Mingyuan Xu Junran Li Shaohua Zhang |
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| Affiliation: | aState Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;bDepartment of Chemistry, Baoding Teacher's College, Baoding 071051, China;cDepartment of Chemistry, Hebei Normal University, Shijiazhuang 050091, China;dSchool of Vehicle and Transmission Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The new electrorheological (ER) material, a particle material composed of Y4O(OH)9(NO3) and NH4NO3, was obtained. They display better ER performance. The shear stress of the suspension of Y4O(OH)9(NO3) (NH4NO3)2.8 material in dimethyl silicone oil reaches 1469 Pa at an electric field strength (E) of 4.2 kV. mm−1 and the shear rate (γ) of 150s−1. The relative shear stress, τE/τ0 (τE and τ0 are the shear stresses at E = 4.2 and O kV-mm−1, respectively), is up to 29, which is 19 times that of pure Y2O3 material. The dielectric and conductive property of the materials play important roles in the modification of the ER effect of the particle materials. The researches on these new ER materials are very useful for obtaining a better understanding on the mechanism of the ER effect and finding an ideal ER material. |
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| Keywords: | electrorheological property Y4O(OH)9(NO3)-(NH4NO3) material dielectric and conductive property rare earths |
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