Abstract:
The aim of this work is to study the effect of the phase composition of the synthesized Fe2O3
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Gd2O3 nanoparticles on the efficiency of using magnetic hyperthermia as a basis for experiments.
This class of structures is one of the most promising materials for biomedical applications and
magnetic resonance imaging. In the course of the study, the dynamics of phase transformations of
nanoparticles Fe2O3 → Fe2O3/GdFeO3 → GdFeO3 were established depending on the annealing
temperature. It has been determined that the predominance of the GdFeO3 phase in the structure of
nanoparticles leads to an increase in their size from 15 to 40 nm. However, during experiments to
determine the resistance to degradation and corrosion, it was found that GdFeO3 nanoparticles have
the highest corrosion resistance. During the hyperthermal tests, it was found that a change in the
phase composition of nanoparticles, as well as their size, leads to an increase in the heating rate of
nanoparticles, which can be further used for practical purposes.
