The Influence of SiO2 Layer on the Temperature Stability of SMC Based on Iron and Mn-Zn Ferrite

Soft magnetic composites Fe/SiO
2
/Mn-Zn ferrite with low energy losses and high magnetic permeability are studied. The electromagnetic properties in composites with (a) 0 wt%, (b) 1 wt %, (c) 2 wt %, (d) 3 wt %, (e) 4 wt %, and (f) 10 wt % of ferrite are investigated. Further, loss separation as a function of ferrite content and temperature was studied. An increase in temperature in working conditions affects the magnetic properties of the SMCs, which requires consideration of the temperature effect in the process of predicting magnetic properties. The content of ferrite plays a significant role in modulating the magnetic properties of Fe/SiO
2
/ferrite soft magnetic composites. The effect of the presence of the SiO
2
layer can play the positive role after the thermal cycles to keep the unchanged structure.