Innovative ferrite nanofibres reinforced soft magnetic composite with enhanced electrical resistivity

Soft magnetic materials with an excellent performance are desired for functional applications. We present an innovative method for manufacturing the soft magnetic composites that may pave the way for magnetic cores with improved electromagnetic properties. In this paper, soft magnetic composites based on FeSi powder coated with the hybrid organic-inorganic coating composed of boron phenol-formaldehyde resin and Ni0.3Zn0.7Fe2O4 ferrite fibres were fabricated to investigate the effects of ferrite nanofibres on the structural and electromagnetic properties. A uniformity of hybrid organic-inorganic coating is reflected in a high value of the electrical resistivity. A low porosity and extraordinary high values of mechanical hardness and flexural strength were found in prepared soft magnetic composites.