Nanoparticles of nonstoichiometric magnetite obtained by controlled oxidation of carbonyl iron (α-Fe) in water are studied. The Fe : H2O mole ratio is 3 : 4, 4 : 4 and 3 : 10. The particles are synthesized in a high-power Activator 2S mill in an air atmosphere by 24-h milling. X-ray diffraction and spectrum analyses of the synthesized magnetite nanoparticles are performed. Formulas describing the crystal chemistry of the nanoparticles are derived using the data of Mossbauer spectroscopy. The magnetic properties and the microstructure of the nanoparticles are studied.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 33 – 38, February, 2021.
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Shchetinin, I.V., Seleznev, S.V. & Dorofievich, I.V. Structure and Magnetic Properties of Nanoparticles of Magnetite Obtained by Mechanochemical Synthesis. Met Sci Heat Treat 63, 95–100 (2021). https://doi.org/10.1007/s11041-021-00653-1
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DOI: https://doi.org/10.1007/s11041-021-00653-1