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Lu Kun-Quan; Shen Rong; Wang Xue-Zhao; Sun Gang; Wen Wei-Jia; Liu Ji-Xing; Lu, KQ , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China
Polar molecule dominated electrorheological effect
Source PublicationCHINESE PHYSICS
KeywordParticle-particle Interactions High-yield Stress Fluids Spheres Force
AbstractThe 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.
2006
ISSN1009-1963
Volume15Issue:11Pages:2476-2480
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5876
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLu, KQ , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Lu Kun-Quan,Shen Rong,Wang Xue-Zhao,et al. Polar molecule dominated electrorheological effect[J]. CHINESE PHYSICS,2006,15(11):2476-2480.
APA Lu Kun-Quan.,Shen Rong.,Wang Xue-Zhao.,Sun Gang.,Wen Wei-Jia.,...&Lu, KQ , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.(2006).Polar molecule dominated electrorheological effect.CHINESE PHYSICS,15(11),2476-2480.
MLA Lu Kun-Quan,et al."Polar molecule dominated electrorheological effect".CHINESE PHYSICS 15.11(2006):2476-2480.
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