Magnetic comparison of BaCa and BaSr substituted hexaferrite powders

Results on magnetic studies of Ba0.5Sr0.5Fe12-2x(ZnTi)xO19 and Ba0.75Ca0.25Fe12-2x(ZnTi)xO19, where x 0.2 to 0.6, ferromagnetic powders prepared by mechanical alloying are discussed. The structural and magnetic properties of the resulting powders were analyzed by thermo-magnetic analysis, X-ray diff...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 217; no. 1; p. 012137
Main Authors González-Angeles, A, Lipka, J, Grusková, A, Sláma, J, Jančárik, V, Slugeň, V
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2010
Subjects
Curie temperature
Ferromagnetism
Magnetic measurement
Magnetic properties
Magnetism
Mechanical alloying
Mossbauer spectroscopy
Physics
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Summary:Results on magnetic studies of Ba0.5Sr0.5Fe12-2x(ZnTi)xO19 and Ba0.75Ca0.25Fe12-2x(ZnTi)xO19, where x 0.2 to 0.6, ferromagnetic powders prepared by mechanical alloying are discussed. The structural and magnetic properties of the resulting powders were analyzed by thermo-magnetic analysis, X-ray diffraction, scanning electron microscopy, Mössbauer spectroscopy and magnetic measurements. Curie temperature, Tc decreased dramatically (drop ~ 39%) for BaCa samples, whilst for BaSr samples remained almost without change (diminution ~ 2%) at x ≤ 0.2. SEM studies showed that all the particles present nearly hexagonal platelet shape.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/217/1/012137