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 language | English |
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Pages (from-to) | 1933-1937 |
Number of pages | 5 |
Journal | Ceramics International |
Volume | 35 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2009 Jul |
Externally published | Yes |
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