The dynamic behavior of magnetic fluid adsorbed to small permanent magnet in alternating magnetic field

Seiichi Sudo, Daisaku Asano, Hidemasa Takana, Hideya Nishiyama

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The dynamic behavior of a magnetic fluid adsorbed to a small NdFeB permanent magnet subjected to an alternating magnetic field was studied with a high speed video camera system. The directions of alternating magnetic field are parallel and opposite to that of the permanent magnet. It was found that the surface of magnetic fluid responds to the external alternating magnetic field in elongation and contraction with a lot of spikes. Generation of a capillary magnetic fluid jet was observed in the neighbourhood of a specific frequency of alternating field. The effect of gravitational force on surface phenomena of magnetic fluid adsorbed to the permanent magnet was revealed.

Original languageEnglish
Pages (from-to)1314-1318
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume323
Issue number10
DOIs
Publication statusPublished - 2011 May 1

Keywords

  • Capillary jet
  • Frequency response
  • Magnetic fluid
  • Magnetic fluid droplet
  • Surface phenomenon

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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