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Magnetic characteristics of Mn–Co–Ti substituted barium ferrite synthesized by sol–gel processing
Author(s) -
Ghasemi A.,
Saatchi A.,
Salehi M.,
Hossienpour A.,
Morisako A.,
Liu X.
Publication year - 2006
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200622002
Subject(s) - barium ferrite , thermogravimetric analysis , scanning electron microscope , coercivity , materials science , ferrite (magnet) , sol gel , ceramic , diffraction , magnetometer , barium , analytical chemistry (journal) , hexagonal crystal system , crystallography , chemistry , metallurgy , composite material , nanotechnology , condensed matter physics , optics , magnetic field , physics , organic chemistry , chromatography , quantum mechanics
BaFe 12– x (Mn 0.5 Co 0.5 Ti) x /2 O 19 hexaferrites with x = 1, 2 and 3 were prepared by a sol–gel process. The reaction temperature was much lower than that of the conventional ceramic method. The ferrite powders possess a hexagonal shape and are well separated from one another. Thermogravimetric analysis, X‐ray diffraction, a scanning electron microscope, an ac susceptometer and a vibrating sample magnetometer were used to analyze their structures and magnetic properties. The results showed that for all the samples magnetoplumbite structures have been formed. The samples with x = 2 and 3 have higher magnetic susceptibility and larger coercive force. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)