Nanosized barium ferrite powders prepared by spray pyrolysis from citric acid solution

Min Ha Kim, Dae Soo Jung, Yun Chan Kang, Jeong Hoo Choi

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Highly crystalline nanosized barium ferrite (BaFe12O19) powders were prepared by spray pyrolysis from a spray solution containing a high concentration of the metal components. The precursor powders obtained from the spray solution containing citric acid were amorphous with a porous and hollow structure. Purely crystalline and fine BaFe12O19 powders were obtained after post-treatment between 700 and 1000 °C and subsequent mechanical grinding in an agate mortar. The mean sizes of the powders post-treated at 700 and 1000 °C were 125 and 550 nm, respectively. The specific magnetization of the powders prepared from the spray solution containing citric acid was 57 emu/g.

Original languageEnglish
Pages (from-to)1933-1937
Number of pages5
JournalCeramics International
Volume35
Issue number5
DOIs
Publication statusPublished - 2009 Jul 1
Externally publishedYes

Fingerprint

Spray pyrolysis
Citric acid
Barium
Citric Acid
Powders
Ferrite
Crystalline materials
Mortar
Magnetization
Metals
barium ferrite

Keywords

  • A. Powders: chemical preparation
  • A. Powders: gas-phase reaction
  • C. Magnetic properties

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Nanosized barium ferrite powders prepared by spray pyrolysis from citric acid solution. / Kim, Min Ha; Jung, Dae Soo; Kang, Yun Chan; Choi, Jeong Hoo.

In: Ceramics International, Vol. 35, No. 5, 01.07.2009, p. 1933-1937.

Research output: Contribution to journalArticle

Kim, Min Ha ; Jung, Dae Soo ; Kang, Yun Chan ; Choi, Jeong Hoo. / Nanosized barium ferrite powders prepared by spray pyrolysis from citric acid solution. In: Ceramics International. 2009 ; Vol. 35, No. 5. pp. 1933-1937.
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