화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.9, No.3, 336-339, May, 2003
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Rheological Characteristics of an Iron Particle-based Magnetorheological Fluid under Weak Magnetic Field Strength
Sung Taek Lim, Min Seong Cho, Hyoung Jin Choi†, and Myung S. Jhon1
  • Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea
  • 1Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh PA 15213-3890, USA
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The flow behavior of a magnetic particle suspension was investigated in a steady shear mode, and the internal structure formation as a function of external magnetic field strength was analyzed. Contrary to the general trend of an increase in flow properties with magnetic field strength, distinct transition regions in which the viscosities and stresses temporarily decrease were observed. This depletion zone was explained by a change in the structural formation of the magnetic particles in the continuous medium by the competing processes of chain formation and rupture with an increase in magnetic field strength.
Keywords:magnetorheological fluid;rheology;magnetic particle;electrorheological fluid
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