Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-933 - C8-934
DOI https://doi.org/10.1051/jphyscol:19888425
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-933-C8-934

DOI: 10.1051/jphyscol:19888425

SYNTHESIS OF BARYUM HEXAFERRITE PIGMENTS FOR MAGNETIC RECORDING

E. Di Marcello1, B. Grange1, J. C. Joubert1 et P. Mollard2

1  INPG-ENSPG-LMGP, Domaine Universitaire, BP 46, 38402 Saint Martin d'Hères, France
2  Laboratoire Louis Néel, CNRS, BP 166 X, 39042 Grenoble Cedex, France


Abstract
BaFe12O19 hexagonal particles have been prepared in a salt melt using a fine reactive NaFeO2 powder. By introduction in the M structure of some Me4+-Me2+ doping metallic ions, we obtained particles with low coercive force and high saturation magnetization suitable for magnetic recording.