Study of the electrical and magnetic properties of MnZn ferrite by equivalent electrical elements

H. H. Nien, T. J. Liang, J. F. Chen, S. K. Changchien

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper investigates the electrical and magnetic properties of Cobalt-substituted Manganese-Zinc soft ferrite by the equivalent lumped elements acquired from the appropriate equivalent electrical circuit of polycrystalline ferrite. The equivalent lumped circuit, combined with equivalent lumped resistances and capacitance, is applied to investigate the effect of microstructure on electrical and magnetic properties of Cobalt-substituted Manganese-Zinc ferrites. Replacing a small portion of Fe2+ with Co2+ remarkably increases the bulk resistivity of the MnZn ferrite and decreases the core loss with lower eddy current loss. A longer isothermal duration causes grain growth and forms a larger equivalent capacitance, which conducts a drop of hysteresis loss. However, excess substitution of Co 2+ for Fe2+ is disadvantageous to magnetic permeability and raises core loss. The DC resistivity and magnetic permeability were measured by impedance analyzer at room temperature. The total loss of Mn 0.58Zn0.37Co0.01Fe2.04O4 ferrite core does not exceed 420 m W/cm3 at 300 kHz/70mT.

Original languageEnglish
Title of host publicationSecond International Conference on Innovative Computing, Information and Control, ICICIC 2007
PublisherIEEE Computer Society
ISBN (Print)0769528821, 9780769528823
DOIs
Publication statusPublished - 2007 Jan 1
Event2nd International Conference on Innovative Computing, Information and Control, ICICIC 2007 - Kumamoto, Japan
Duration: 2007 Sep 52007 Sep 7

Publication series

NameSecond International Conference on Innovative Computing, Information and Control, ICICIC 2007

Other

Other2nd International Conference on Innovative Computing, Information and Control, ICICIC 2007
CountryJapan
CityKumamoto
Period07-09-0507-09-07

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Mechanical Engineering

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    Nien, H. H., Liang, T. J., Chen, J. F., & Changchien, S. K. (2007). Study of the electrical and magnetic properties of MnZn ferrite by equivalent electrical elements. In Second International Conference on Innovative Computing, Information and Control, ICICIC 2007 [4427977] (Second International Conference on Innovative Computing, Information and Control, ICICIC 2007). IEEE Computer Society. https://doi.org/10.1109/ICICIC.2007.546