Study of the magnetic anisotropy of the multiphase samples of the ferrimagnets with hexagonal crystal structure by the method of ferromagnetic resonance

The influence of machining conditions in a planetary ball mill on the phase composition, structural and magnetic parameters of hexaferrite powders composition BaFe12O19 was investigated. The properties of powders vary greatly depending on the power density and the time of machining. Magnetocrystalli...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 168; no. 1; pp. 12081 - 12086
Main Authors Zhuravlev, V A, Minin, R M, Itin, V I, Lopushnyak, Y M, Zhuravlev, A V, Lilenko, E P
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2017
Subjects
Anisotropy
Ball milling
Barium hexaferrite
Crystal structure
Disintegration
Ferrimagnets
Ferromagnetic resonance
Ferromagnetism
Machining
Magnetic anisotropy
Magnetic properties
Multiphase
Phase composition
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Summary:The influence of machining conditions in a planetary ball mill on the phase composition, structural and magnetic parameters of hexaferrite powders composition BaFe12O19 was investigated. The properties of powders vary greatly depending on the power density and the time of machining. Magnetocrystalline anisotropy of multiphase powders was studied by the method of ferromagnetic resonance. The effective field of magnetic anisotropy is reduced by more than two times, with decreasing particle size of ∼ 67 nm to ∼ 10 nm when the processing time equal to 10 minutes. The flow of mechanochemical reactions during grinding leads to the disintegration of the hexagonal crystal phase and the formation of the magnetite phase with a small value of the magnetocrystalline anisotropy field.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/168/1/012081