A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins

Magdalena Streckova; Radovan Bures; Maria Faberova; Lubomir Medvecky; Jan Fuzer; Peter Kollar

doi:10.1016/j.cjche.2014.12.005

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A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins

材料与产品工程 | Updated：2026-01-06

- A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins
- A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins
- 中国化学工程学报（英文版） 2015年23卷第4期页码：736-743
- Affiliations：
  
  2 Institute of Physics, Faculty of Science P. J. Šafárik University, Park Angelinum 904001, Košice, Slovak Republic
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2014.12.005
  中图分类号：
- 纸质出版：2015
- Accepted：
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Magdalena Streckova, Radovan Bures, Maria Faberova, 等. A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins[J]. 中国化学工程学报（英文版）, 2015,23(4):736-743.

Magdalena Streckova, Radovan Bures, Maria Faberova, Lubomir Medvecky, Jan Fuzer, Peter Kollar. A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins[J]. Chin.J.Chem.Eng., 2015, 23(4): 736-743.
Magdalena Streckova, Radovan Bures, Maria Faberova, 等. A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins[J]. 中国化学工程学报（英文版）, 2015,23(4):736-743. DOI： 10.1016/j.cjche.2014.12.005.

Magdalena Streckova, Radovan Bures, Maria Faberova, Lubomir Medvecky, Jan Fuzer, Peter Kollar. A comparison of soft magnetic composites designed from different ferromagnetic powders and phenolic resins[J]. Chin.J.Chem.Eng., 2015, 23(4): 736-743. DOI： 10.1016/j.cjche.2014.12.005.

摘要

Abstract

Soft magnetic composites (SMCs) were prepared from three different ferromagnetic powder particles: iron powder ASC 100.29

spherical FeSi particles and vitroperm (Fe

) flakes. Two types of hybrid organic-inorganic phenolic resins modified with either silica nanoparticles or boron were used to design a thin insulating layer perfectly covering the ferromagnetic particles. Fourier transform infrared (FTIR) spectrometry confirmed an incorporation of silica or boron into the polymer matrix

which manifested itself through an improved thermal stability of the hybrid resins verified by thermogravimetric-differential scanning calorimetry (TG-DSC) analysis. The core-shell particles prepared from the ferromagnetic powder particles and themodified hybrid resins were further compacted to the cylindrical and toroidal shapes for the mechanical

electrical and magnetic testing. A uniform distribution of the resin between the ferromagnetic particles was evidenced by scanning electron microscope (SEM) analysis

which was also reflected in a rather high value of the electrical resistivity. A low porosity and extraordinary high values of mechanical hardness and flexural strength were fou

nd in SMC consisting of the iron powder and phenolic resinmodified with boron. The coercive fields of the prepared samples were comparable with the commercial SMCs.

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