Mechanochemical Synthesis of Hexagonal Ferrites BaFe₁₂O₁₉

Abstract:

The phase composition, structural parameters, and basic magnetic characteristics of BaFe₁₂O₁₉ hexaferrites prepared by the mechanochemical synthesis with subsequent annealing at a temperature of 1000°С and 1100°С for 1 h are investigated. The influence of the annealing temperature on the properties of synthesized materials is analyzed. Values of the saturation magnetization and the anisotropy field are determined. It is established that annealing temperature in the interval 1000 - 1100 °C does not significantly affect on the phase composition and the size of nanoparticles. The value of the anisotropy field increases substantially with increasing temperature.

• Periodical: Key Engineering Materials (Volume 781)
• Pages: 119-124
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.781.119
• Online since: September 2018
• Authors: Viktor Zhuravlev*, Anna Nevmyvaka, Volya Itin, Dmitry Velikanov
• Keywords: Ferromagnetic Resonance, Magnetization Curve, Magnetocrystalline Anisotropy, Mechanochemical Synthesis, Nanostructure Hexaferrites

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