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2017 | 131 | 4 | 714-716
Article title

Imaging of Magnetic Domain Structure in FeSi/Mn_{0.8}Zn_{0.2}Fe₂O₄ Composite using Magnetic Force Microscopy

Content
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EN
Abstracts
EN
Soft magnetic composite was prepared by coating the commercial FeSi powder by Mn_{0.8}Zn_{0.2}Fe₂O₄ (MnZn) ferrite, which serves as a potential dielectric phase. MnZn ferrite was prepared by the sol-gel method followed by the auto-self combustion process. The spinel structure of MnZn ferrite was analyzed by X-ray diffraction technique. The composite material was prepared by uniaxial compaction technique and sintered either by conventional or unconventional microwave method. The microwave sintering was applied in order to reduce a grain growth and decrease the overall sintering time. The microstructure of FeSi powder is formed by grains of different diameter. Magnetic force microscopy and scanning electron microscopy were used for an investigation of the correlation between the grain size, grain boundaries and magnetic domains. Magnetic force microscopy visualization of magnetic domains in the prepared soft magnetic composite brings insight into how the magnetically active coating (MnZn ferrite) influences the soft magnetic (FeSi) powder under the influence of the external magnetic field.
Keywords
Year
Volume
131
Issue
4
Pages
714-716
Physical description
Dates
published
2017-04
References
  • [1] Höganäs datasheet http://hoganas.com
  • [2] M. Lauda, J. Fuzer, P. Kollar, M. Streckova, R. Bures, J. Kovac, M. Batkova, I. Batko, J. Magn. Magn. Mater. 411, 12 (2016), doi: 10.1016/j.jmmm.2016.03.051
  • [3] P.J. Zaag, M.T. Johnson, A. Noordermeer, P.T. Por, M.Th. Rekveldt, J. Magn. Magn. Mater. 99, L1 (1991), doi: 10.1016/0304-8853(92)90861-H
  • [4] P.J. Zaag, P.J. Valk, M.Th. Rekveldt, Appl. Phys. Lett. 69, 2927 (1996), doi: 10.1063/1.117326
  • [5] J. Aartsa, I. Abu Shiekah, P.J. van der Zaag, J. Appl. Phys. 85, 7302 (1999), doi: 10.1063/1.369353
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv131n4034kz
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