https://doi.org/10.1140/epjs/s11734-022-00520-x
Regular Article
Specific loss power of epoxy composites with embedded magnetite particles
1
Ural Federal University, Institute of Natural Sciences and Mathematics, 19 Mira Str., 620002, Yekaterinburg, Russian Federation
2
Institute of Electrophysics UB RAS, 106 Amundsen Str., 620016, Yekaterinburg, Russian Federation
3
Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russia
Received:
23
June
2021
Accepted:
3
March
2022
Published online:
31
March
2022
Results of experimental study of a heat production by systems of magnetite particles, immobilized in an epoxy composite and placed under the action of oscillating magnetic fields are presented. The samples, consisting of the particles with diameters 8.3, 16 and 180 nm were studied and the specific loss power (SLP) per 1 g of magnetic particles was evaluated as a function of their volume fraction in an epoxy composite, the frequency and the intensity (H
of the applied magnetic field. It was shown that SLP increased with the volume fraction of magnetic particles in the composite due to the dipole–dipole interaction in concentrated magnetic dispersions. Unexpectedly, intensities of the heat productions in the composites with embedded batches of particles 16 and 180 nm in diameter were practically the same; the thermal effect increased with the applied field amplitude faster than 
.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjs/s11734-022-00520-x.
© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2022
