J. Phys. IV France 07 (1997) C1-751-C1-752
Preparation of Single Crystallites of Barium Ferrite by Hydrothermal SynthesisJ.-H. Lee1, T.-B. Byeon2, H.-J. Lee1, C.-G. Kim1 and T.-O. Kim1
1 Laboratory of Electromagnetic Materials, Department of Inorganic Materials, Pusan National University, Jangjeon-dong, Kumjeong-ku, Pusan, 609-735, Korea
2 Resource Utilization Team, Research Institute of Industrial Science & Technology, P.O. Box 135, Pohang, 790-330, Korea
We investigated the formation process and characteristics of barium ferrite single crystallite prepared by hydrothermal synthesis and the effect of heat treatment on crystallization and magnetic properties. The single phase of barium ferrite is formed in the batch composition Ba : Fe 1 : 10 and above alkali molar ratio 2.5. The particle size has tendency to decrease with increase in alkali molar ratio. Crystallization and magnetic properties of the hydrothermal-synthesized barium ferrite powders can be improved by the heat treatment.
© EDP Sciences 1997