Synthesis and magnetic properties of Fe substituted hibonite

Synthesis and magnetic properties of Fe substituted hibonite

  We have investigated the synthesis conditions and magnetic properties of Fe substituted hibonite with initial compositions of CaAl12-xFexO19 (0≤x≤12) and CaAl10-xFexO19-δ (0≤x≤10). The Fe doped hibonite can be synthesized at a sintering temperature of 1300˚C. The X-ray diffraction patterns of Fe s...

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Veröffentlicht in:Journal of the Magnetics Society of Japan 2017, Vol.41(2), pp.20-24
Hauptverfasser: Nagumo, H., Watanabe, K., Kakizaki, K., Kamishima, K.
Format: Artikel
Sprache:eng
Schlagworte:
Curie temperature
Diffraction patterns
hexaferrite
M-type
Magnetic properties
Materials substitution
Synthesis
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Zusammenfassung:  We have investigated the synthesis conditions and magnetic properties of Fe substituted hibonite with initial compositions of CaAl12-xFexO19 (0≤x≤12) and CaAl10-xFexO19-δ (0≤x≤10). The Fe doped hibonite can be synthesized at a sintering temperature of 1300˚C. The X-ray diffraction patterns of Fe substituted hibonite samples are in good agreement with the pattern of hibonite. The lattice parameter increased due to the difference between the radius of Al3+ and that of Fe3+. The magnetization and Curie temperature of the best sample (CaAl2Fe8O19-δ) are 31 emu/g and 290˚C, respectively.
ISSN:1882-2924
1882-2932
DOI:10.3379/msjmag.1701R001