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Thermophysical and structural properties of manganese ferrite nanoparticles
Modern Physics Letters B  (IF1.668),  Pub Date : 2021-11-29, DOI: 10.1142/s0217984921505424
A. F. Gochuyeva

This paper discusses the results of the research carried out to study the structure, optical properties and thermophysical properties of a sample (nanopowder with a true density of 4.96 g/cm3, a particle size of 60 nm and a purity of 98.5%, SkySpring Nanomaterials, USA) with high purity. Based on the results of X-ray diffraction, the crystalline phase of MnFe2O4 ferrite nanoparticles was completely obtained and the values of the lattice parameters were determined. The results of the MID-IR analysis showed that the absorption coefficient $(α)$ reaches its maximum value at 748 cm$−1$ wave number. The optical properties of the as-prepared nanostructures were also investigated by VERTEX 70 V diffuse reflectance spectroscopy (DRS). As can be seen from the results of the DSC analysis, the effects occurring in the temperature range up to $300∘$C clearly reflect the nature of the phase transitions and the amount of energy generated in the ferrite samples.