Magnetic drop-sheath wetting transition of a ferrofluid on a wire

Abstract : We study the spreading of a non wetting ferrofluid drop along a wire. The external control parameter of the magnetic fluid spreading is the magnetic field generated by the current in the conducting wire. For a current threshold we predict a spreading of the drop into a sheath coverage. This magnetic wetting transition is analogous to the wetting transition on a fiber predicted for totally wetting fluid in presence of Van der Waals forces.
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Submitted on : Friday, January 1, 1988 - 8:00:00 AM
Last modification on : Friday, January 1, 1988 - 8:00:00 AM
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J.-C. Bacri, C. Frenois, R. Perzynski, D. Salin. Magnetic drop-sheath wetting transition of a ferrofluid on a wire. Revue de Physique Appliquee, 1988, 23 (6), pp.1017-1022. ⟨10.1051/rphysap:019880023060101700⟩. ⟨jpa-00245902⟩

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