Main Page
About the Journal
Subscription information

Current Issue
Tables of Contents
Author Index


Solid to liquid transition of inverse ferrofluids under shear

R. Saldivar-Guerrero1, 3 - R. Richter1 - I. Rehberg1 - N. Aksel2 - L. Heymann2 - O. S. Rodriguez-Fernández3

1 Experimentalphysik V, Universität Bayreuth, D-95440 Bayreuth, Germany
2 Lehrstuhl für Technische Mechanik und Strömungsmechanik, Universität Bayreuth, D-95440 Bayreuth, Germany
3 Centro de Investigación en Química aplicada, 25100 Saltillo, Coahuila México

By dispersing microsized monodisperse polystyrene particles in a ferrofluid, an ideal magneto-rheological model fluid is created. Due to the dipolar interactions of the particles, the hybrid fluid shows solid-like behavior under the shear, i.e., one has to overcome an apparent yield stress before flow sets in. We compare this quantity with theoretical predictions for different magnetic fields and volume fractions of nonmagnetic particles. Figs 3, Refs 6.

Magnetohydrodynamics 41, No. 4, 385-390, 2005 [PDF, 0.22 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X