Effect of Annealing, Stoichiometry, and Surface on Magnetism of (Pr,Dy)FeCoB Microparticles Ensemble

Magnetic properties of powder (Pr,Dy)FeCoB ferrimagnetic alloys and effects of annealing, surface states were analyzed. X-ray photoelectron spectroscopy and Mössbauer spectra of powders indicate the effect of surface states on phase composition and magnetic properties of the studied powder, if parti...

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Bibliographic Details
Published in:Archives of metallurgy and materials 2017-09, Vol.62 (3), p.1923-1930
Main Authors: Kablov, E.N., Ospennikova, O.G., Kunitsyna, E.I., Piskorskii, V.P., Korolev, D.V., Morgunov, R.B.
Format: Article
Language:English
Subjects:
Annealing
Cobalt
Composition effects
Dysprosium base alloys
Ferrimagnetism
Iron
Magnetic anisotropy
Magnetic properties
magnetisation
Magnetism
magnets
Microparticles
Mössbauer spectroscopy
Phase composition
Rare-earth metals
Spectrum analysis
Stoichiometry
Thermal stability
X-ray spectroscopy
X-rays
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Summary:Magnetic properties of powder (Pr,Dy)FeCoB ferrimagnetic alloys and effects of annealing, surface states were analyzed. X-ray photoelectron spectroscopy and Mössbauer spectra of powders indicate the effect of surface states on phase composition and magnetic properties of the studied powder, if particles average size is smaller than 10 μm. Effect of stoichiometry on magnetic anisotropy was found. Thermal stability of anisotropy field was proved by replacement of Fe atoms with Co atoms.
ISSN:2300-1909
1733-3490
2300-1909
DOI:10.1515/amm-2017-0290