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题名: Polar molecule dominated electrorheological effect
作者: Lu Kun-Quan ;  Shen Rong ;  Wang Xue-Zhao ;  Sun Gang ;  Wen Wei-Jia ;  Liu Ji-Xing
刊名: CHINESE PHYSICS
出版日期: 2006
卷号: 15, 期号:11, 页码:2476-2480
关键词: PARTICLE-PARTICLE INTERACTIONS ;  HIGH-YIELD STRESS ;  FLUIDS ;  SPHERES ;  FORCE
学科分类: Physics
通讯作者: Lu, KQ , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China
部门归属: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China; Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The yield stress of our newly developed electrorheological (ER) fluids consisting of dielectric nano-particles suspended in silicone oil reaches hundreds of kPa, which is orders of magnitude higher than that of conventional ones. We found that the polar molecules adsorbed on the particles play a decisive role in such new ER fluids. To explain this polar molecule dominated ER (PM-ER) effect a model is proposed based on the interaction of polar molecule-charge between the particles, where the local electric field is significantly enhanced and results in the polar molecules aligning in the direction of the electric field. The model can well explain the giant ER effect and a near-linear dependence of the yield stress on the electric field. The main effective factors for achieving high-performance PM-ER fluids are discussed. The PM-ER fluids with the yield stress higher than one MPa can be expected.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000242215500002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5876
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Lu Kun-Quan,Shen Rong,Wang Xue-Zhao,et al. Polar molecule dominated electrorheological effect[J]. CHINESE PHYSICS,2006,15(11):2476-2480.
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