화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea-Australia Rheology Journal, Vol.11, No.3, 169-195, September, 1999
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Advances in modelling the mechanisms and rheology of electrorheological fluids
Howard See†
  • Department of Mechanical & Mechatronic Engineering, The University of Sydney, NSW 2006, Australia
E-mail:
An electrorheological fluid (ERF) is typically a suspension of semi-conducting solid particles dispersed in an insulating carrier fluid, and shows a dramatic change in rheological properties when an external electric field is applied. This rapid and reversible change in flow properties has potential application in many electronically controlled mechanical devices, but the development of efficient devices and optimal materials for ERF is still hindered by incomplete understanding of the fundamental physical mechanisms involved. In recent years there have been considerable advances in relating microstructural models to the rheological behaviour, and these will form the basis of this review. Results of the theoretical calculations and simulations will by compared to the key experimental evidence available. An overview of the fundamental physical concepts behind electrorheological fluid behaviour will also be presented.
Keywords:electrorheological fluid;ERF;microstructure;yield stress;electric polarisation
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