Effects of Heat Treatments on Magnetoimpedance of Fe40Ni38Mo4B18 Ribbons

Authors

  • Pongsakorn Jantaratana Electricity and Magnetism Properties Research Laboratory, Department of Physics, Kasetsart University, Bangkok 10900, Thailand.
  • Saisunee Pasuksan Electricity and Magnetism Properties Research Laboratory, Department of Physics, Kasetsart University, Bangkok 10900, Thailand.

Keywords:

annealing, magnetic anisotropy, magnetic permeability, magnetoimpedance, skin effect

Abstract

The magnetoimpedance effect in Fe40Ni38Mo4B18 ribbons was studied as a function of the frequency of the driving current and the static magnetic field. The as-cast sample exhibited single peak magnetoimpedance with small hysteresis in the low magnetic field regime. The conventional furnace
annealing led to magnetic hardening and a decrease in the magnetoimpedance ratio. However, furnace annealing also induced transverse magnetic anisotropy and increased the magnetic field sensitivity. The maximum field sensitivity of 6%/Oe for the as-cast sample increased to more than 14 %/Oe after being annealed at 200°C. The magnetoimpedance of the samples can be explained by the frequency of the current and magnetic field dependence on the transverse magnetic permeability of the soft ferromagnetic conductor.

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Published

2009-03-30

How to Cite

Pongsakorn Jantaratana, and Saisunee Pasuksan. 2009. “Effects of Heat Treatments on Magnetoimpedance of Fe40Ni38Mo4B18 Ribbons”. Agriculture and Natural Resources 43 (1). Bangkok, Thailand:205-9. https://li01.tci-thaijo.org/index.php/anres/article/view/244655.

Issue

Vol. 43 No. 1 (2009): January-March

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.