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Magnetic dimer motion effects in a rotating magnetic field (A qualitative model of magnetoviscosity and permittivity in magnetorheological suspensions)

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Czechoslovak Journal of Physics Aims and scope

Abstract

The motion of a pair of uniform interacting spherical mesoscopic particles situated in a viscous fluid under the influence of a rotating magnetic field was studied. The coupling interactions between the particles were chosen as a superposition of steric and dipolar pair potentials (for the dipoles parallel to the external field). The model dynamics consisting of particular rotation and vibration modes is the result of the interplay of viscous and interaction forces. The transition from the synchronous to the asynchronous regime of dimer rotation has been found. The results were discussed from a synergetic point of view. A qualitative picture of behaviour of the effective magnetoviscosity and permittivity for dimerized magnetorheological suspension has been given.

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Authors and Affiliations

  1. Institute of Experimental Physics, Slovak Acad. Sci., Watsonová 47, Kosice, Slovak Republic

    D. Horváth & P. Kopčanský

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  1. D. Horváth
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  2. P. Kopčanský
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Horváth, D., Kopčanský, P. Magnetic dimer motion effects in a rotating magnetic field (A qualitative model of magnetoviscosity and permittivity in magnetorheological suspensions). Czech J Phys 43, 671–681 (1993). https://doi.org/10.1007/BF01591541

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  • DOI: https://doi.org/10.1007/BF01591541

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