Journal of Materials Science

, Volume 28, Issue 19, pp 5247–5250 | Cite as

Hydrothermal synthesis of barium ferrite fine particles from goethite

  • H. Kumazawa
  • H. -M. Cho
  • E. Sada


Barium ferrite fine particles were prepared from aqueous suspensions containing goethite (α-FeOOH) and barium hydroxide by a hydrothermal method. Barium ferrite particles of thin hexagonal plate shape could be produced from commercially available goethite with an Fe: Ba molar ratio of 7.2, whereas barium ferrite particles could be produced from synthesized goethite with a molar ratio of unity. The effects on the size of hexagonal platelike particles of such reaction conditions as temperature, stirring speed and alkali concentration were investigated. Particles of 0.6 to 0.8 μm mean size were prepared under the reaction conditions covered here.


Polymer Ferrite Hydroxide Hexagonal Barium 
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  1. 1.
    E. Sada, H. Kumazawa andH. -M. Cho,Ind. Eng. Chem. Res. 30 (1991) 1319.CrossRefGoogle Scholar
  2. 2.
    M. Kiyama,Bull. Chem. Soc. Jpn 49 (1976) 1885.CrossRefGoogle Scholar
  3. 3.
    D. Barb, L. Diamandescu, A. Rucci, D. Tarabasanu-Mihaila andV. Teodorescu,J. Mater. Sci. 21 (1986) 1118.CrossRefGoogle Scholar
  4. 4.
    E. Sada, H. Kumazawa andY. Murakami,Chem. Eng. Commun. 103 (1991) 57.CrossRefGoogle Scholar
  5. 5.
    E. Sada, H. Kumazawa, K. Makino andH. -M. Cho,ibid. 91 (1990) 225.CrossRefGoogle Scholar

Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • H. Kumazawa
    • 1
  • H. -M. Cho
    • 1
  • E. Sada
    • 1
  1. 1.Department of Chemical EngineeringKyoto UniversityKyotoJapan

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