| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1645260 | Materials Letters | 2013 | 4 Pages |
•Soft magnetic composite based on Fe powder and hybrid resin were designed.•SiO2-nanocomposite polymer matrix represents electrically insulating layer.•Hybrid polymer improves the thermal and mechanical resistance of composites.•Homogeneous microstructure provides lower eddy currents in prepared composites.
Mechanical, magnetic and electrical properties of a novel family of soft magnetic composites (SMCs) are studied in detail. The phenolic resin serving as electrical insulating layer in designed Fe/resin composites was modified by 3-glycidoxypropyltrimethoxysilane and tetraethylorthosilicate. The chemical bonding between organic and inorganic parts of a polymer matrix was confirmed by FTIR spectroscopy. Mechanical hardness, flexural strength and distribution of SiO2 nano-particles were substantially improved by using silane coupling agents. The hybrid insulating layer results in a defect-free structure of prepared green compacts, which consequently exhibit a higher permeability and lower eddy current losses.
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