Electrical and thermal conductivities of magneto-rheological fluids in magnetic field

Run Ze Jia, Yi Chun Wang*, Fei Zhou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

An experiment on two prepared Fe-Co-Ni MRFs (Magneto Rheological Fluids) was conducted through a homemade device. Then, the electrical and thermal conductivities of the two MRFs were analyzed and compared with those of the Fe-Co-Ni magnetic powder itself. The results show that the magnetic field causes the electrical and thermal conductivities of the Fe-Co-Ni MRFs and magnetic powder to change greatly, and that, when the magnetic field intensity increases within 0~0.92T, the resistance of the Fe-Co-Ni magnetic powder decreases by two-to-three orders of magnitude with a significant increase in thermal conductivity from 4 W/(m2·K) to 13.2 W/(m2·K), and the thermal conductivities of the two MRFs also increase.

Original languageEnglish
Pages (from-to)57-62
Number of pages6
JournalHuanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science)
Volume42
Issue number10
DOIs
Publication statusPublished - 1 Oct 2014

Keywords

  • Electrical conductivity
  • Magnetic fields
  • Magneto rheological fluid
  • Thermal conductivity

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