Ultrasonic propagation characteristics of a magnetic fluid under AC magnetic fields

Y. Fujita, A. Isnikurniawan, S. Tanimoto, T. Sawada

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

An experimental study in ultrasonic propagation characteristics of a magnetic fluid under AC magnetic fields was conducted. Sound velocities in a magnetic fluid increased with elapsed time of the AC magnetic fields. Moreover, rapid decreases in sound velocities in a magnetic fluid were observed when the AC magnetic fields were stopped. These results were similar to those for DC magnetic fields. Dependence of frequencies and magnitudes of AC magnetic fields on sound velocities in a magnetic fluid was observed. Moreover, anisotropy was found in each frequency of the AC magnetic fields.

Original languageEnglish
Pages (from-to)667-673
Number of pages7
JournalInternational Journal of Applied Electromagnetics and Mechanics
Volume45
Issue number1-4
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • AC magnetic field
  • Magnetic fluid
  • anisotropy
  • ultrasonic

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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