中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The interfacial polarization-induced electrorheological effect

文献类型:期刊论文

作者Hao, T
刊名JOURNAL OF COLLOID AND INTERFACE SCIENCE
出版日期1998-10-01
卷号206期号:1页码:240-246
关键词Interfacial Polarization The Wagner Model Electrorheological Phenomena
ISSN号0021-9797
英文摘要The Wagner theory, which describes the interfacial polarization in heterogeneous systems, was employed to model the electrorheological(ER) effect under the presumption that the shear stress increment is induced by the interfacial polarization. The currently observed experimental facts, such as the yield stress of some ER fluids, decreases with the applied field frequency increasing or the environment temperature decreasing, while that of other fluids increases with the frequency decreasing or temperature increasing; the strongest ER effect is usually observed in the suspension with the dispersed particle conductivity around 10(-7) S/m; the particle dielectric loss tangent of a good ER fluid usually is above 0.10 at 1000 Hz; and the fluid with a high conductive particle usually has a short response time, can be satisfactorily understood with the extended Wagner model. The Wagner-polarization-induced maximum yield stress of a heterogeneous-type ER fluid is estimated around 7 kPa under the presumption that the dielectric constants of the solid particle and the liquid medium are 10 and 2, respectively, the particle volume fraction is 35%, and the applied electric field strength is 3 kV/mm. It is concluded that the ER effect may substantially correlate with the Wagner polarization, which would help in understanding the mechanism of the ER effect and would provide a strategy for designing high performance ER fluids. (C) 1998 Academic Press.
语种英语
WOS记录号WOS:000076375400029
出版者ACADEMIC PRESS INC
源URL[http://ir.iccas.ac.cn/handle/121111/74715]  
专题中国科学院化学研究所
通讯作者Hao, T
作者单位1.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
推荐引用方式
GB/T 7714
Hao, T. The interfacial polarization-induced electrorheological effect[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,1998,206(1):240-246.
APA Hao, T.(1998).The interfacial polarization-induced electrorheological effect.JOURNAL OF COLLOID AND INTERFACE SCIENCE,206(1),240-246.
MLA Hao, T."The interfacial polarization-induced electrorheological effect".JOURNAL OF COLLOID AND INTERFACE SCIENCE 206.1(1998):240-246.

入库方式: OAI收割

来源:化学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。