TITLE

Enhancement of local electric field in an electrorheological system

AUTHOR(S)
Jie, H.; Shen, M.; Xu, J.; Chen, W. X.; Jin, Y.; Peng, W. N.; Fu, X. B.; Zhou, L. W.
PUB. DATE
September 2004
SOURCE
Applied Physics Letters;9/27/2004, Vol. 85 Issue 13, p2646
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A local electric field distribution in the midplane between two spherical metal particles under an applied electric field is measured for comparison with the real electrorheological system. It was found that the ratio of the maximum value of local electric field to applied electric field is not a constant as most theoretical models predicted.
ACCESSION #
14546573

 

Related Articles

  • Particle size scaling of the giant electrorheological effect. Wen, Weija; Xianxiang Huang; Ping Sheng // Applied Physics Letters;7/12/2004, Vol. 85 Issue 2, p299 

    This letter shows that by decreasing the size of the barium titanyl oxalate nanoparticles coated with urea, achieved through Rb doping, the giant electrorheological (GER) effect can attain a yield stress of >250 kPa. The shear thinning effect observed in parallel-plate sandwich configuration is...

  • Electrorheological-fluid-based microvalves. Xize Niu; Weijia Wen; Yi-Kuen Lee // Applied Physics Letters;12/12/2005, Vol. 87 Issue 24, p243501 

    We present the successful design and fabrication of push-and-pull microvalves that use a giant electrorheological (GER) fluid. Our multilayer microvalves, including the GER fluid control channel, the electrode, the flow channel, and the flexible membrane, are fabricated with...

  • Electric field induced solidification. Tao, R.; Woestman, J. T.; Jaggi, N. K. // Applied Physics Letters;10/30/1989, Vol. 55 Issue 18, p1844 

    We present a description of electrorheological fluids in terms of an electric field induced phase transition at a critical electric field Ec. Theoretically, we find that as the applied field exceeds Ec, the osmotic pressure becomes negative and the liquid experiences a phase transition to a...

  • Pattern transitions induced by the surface properties of suspended microspheres... Weijia Wen; Kunquan Lu // Physics of Fluids;Jun97, Vol. 9 Issue 6, p1826 

    Presents experimental results showing the formation of different patterns of microspheres in electrorheological fluids depending on whether metal, or dielectric microspheres are presented in the electric field. Occurrence of a pattern transition when the surface conductivity of the solid phase...

  • Influence of a surface film on conducting particles on the electrorheological response with... Wu, C.W.; Conrad, H. // Journal of Applied Physics;6/15/1997, Vol. 81 Issue 12, p8057 

    Examines the role of a surface film on highly conducting particles on the electrorheological response at any alternating current field. Critical frequency separating the conduction domain from the dielectric domain; Ratio of the conductivity to the permittivity of the host oil; Suggested method...

  • Model for the electrorheological effect in flowing polymeric nematics. Rodríguez, R.F.; Reyes, J.A.; Manero, O. // Journal of Chemical Physics;4/22/1999, Vol. 110 Issue 16, p8197 

    An analytical model to study the response of a polymeric nematic confined in a rectangular cell, to a dc electric field is presented. The effect of a pressure-driven plane Poiseuille flow and its competition with the electric field is explicitly considered. For the final stationary state where...

  • Frequency-induced structure variation in electrorheological fluids. Wen, Weijia; Weijia Wen; Ma, Hongru; Hongru Ma; Tam, Wing Yim; Wing Yim Tam; Sheng, Ping; Ping Sheng // Applied Physics Letters;12/4/2000, Vol. 77 Issue 23 

    We show that by changing the frequency of the externally applied electric field there can be significant variation in the column structure of the electrorheological (ER) fluids, with attendant yield stress implications. This phenomenon is quantitatively explained by the Debye-type relaxation...

  • Chain/column evolution and corresponding electrorheological effect. Wen, Weijia; Zheng, D. W. // Journal of Applied Physics;1/1/1999, Vol. 85 Issue 1, p530 

    Investigates chain/column evolution and the corresponding electrorheological (ER) effect performed with glass/oil ER fluid. Evolution of chain/column transition in fast aggregation; Interactions among fluid particles; Processes of sequential transition between molecular states.

  • Use of electro-rheological fluids in a damping device. Korobko, E.; Levin, M.; Bilyk, V.; Binshtok, A. // Journal of Engineering Physics & Thermophysics;Sep2005, Vol. 78 Issue 5, p940 

    This paper presents results of experimental studies of an electro-rheological shock absorber based on a controlled hydrosuspension designed to damp a wheeled tractor driver’s cab accommodating not only the operator but also complex electronic equipment by regulating the rheological...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics