Magnetic Properties of Soft Magnetic FeSi Composite Powder Cores

• Authors: M. Lauda , J. Füzer , J. Füzerová , P. Kollár , M. Strečková , M. Fáberová
• Languages of publication: EN

Abstracts

EN

Soft magnetic composites (SMCs), which are used in electromagnetic applications, can be described as ferromagnetic powder particles surrounded by an electrical insulating film. These composite materials offer several advantages over traditional laminated steel cores such as reduction in weight and size. They have some unique properties, including three-dimensional isotropic ferromagnetic behaviour, very low eddy current loss, relatively low total core loss at medium and high frequencies, high electrical resistivity and good relative magnetic permeability. FeSi powder was used as a base ferromagnetic material for preparation of soft magnetic composites. The commercial FeSi particles of a precise spherical shape were prepared in two granulometric fractions (up to 150 μm or up to 356 μm). The phenol-formaldehyde resin modified by SiO_{2} nanoparticles was used as an electroinsulating layer. The FeSi particles covered by the synthesized resin were compacted at 800 MPa into the ring samples for magnetic measurements. The final samples were treated thermally under the curing schedule, which was suggested according to thermal degradation of the modified resin.

Keywords

EN

81.05.Ni; 75.50.Bb; 07.55.-w

Discipline

• 81.05.Ni: Dispersion-, fiber-, and platelet-reinforced metal-based composites
• 07.55.-w: Magnetic instruments and components
• 75.50.Bb: Fe and its alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 144-145

Dates

published

2014-07

Contributors

author

M. Lauda

• Institute of Physics, Faculty of Sciences, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

J. Füzer

• Institute of Physics, Faculty of Sciences, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

J. Füzerová

• Faculty of Mechanical Engineering, Technical University, Letná 9, 042 00 Košice, Slovakia

author

P. Kollár

• Institute of Physics, Faculty of Sciences, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

M. Strečková

• Institute of Materials Research SAS, Watsonova 47, 040 01 Košice, Slovakia

author

M. Fáberová

• Institute of Materials Research SAS, Watsonova 47, 040 01 Košice, Slovakia

References

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Identifiers

DOI

10.12693/APhysPolA.126.144