Nanophase BaFe12O19 synthesized from a nonaqueous microemulsion with Ba- and Fe-containing surfactants
- 1 November 1995
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 10 (11) , 2689-2692
- https://doi.org/10.1557/jmr.1995.2689
Abstract
Ultrafine BaFe12O19 with uniform particle size was synthesized from an alcohol-in-oil (nonaqueous) microemulsion system where the metal ions were supplied by the surfactant (metal di-2-ethylhexylsulfosuccinate) molecules themselves. A monodisperse, fine-grained precipitate (Ba-Fe oxalate) was ensured by the steric barrier provided by the surfactant monolayer, while the nonaqueous environment promoted stoichiometric coprecipitation. Pure BaFe12O19 was obtained by calcining the oxalate precursor at or above 950 °C. Structural and magnetic properties of the resulting ultrafine magnetic material are reported.Keywords
This publication has 11 references indexed in Scilit:
- PREPARATION OF AOT-METAL SURFACTANTS AND THEIR PROPERTIES IN NON-AQUEOUS AND AQUEOUS MEDIAJournal of Dispersion Science and Technology, 1992
- Formation of theoretical-density microhomogeneous YBa2Cu3O7-χ using a microemulsion-mediated processPhysica C: Superconductivity and its Applications, 1990
- Uniform colloidal barium ferrite particlesJournal of Colloid and Interface Science, 1987
- Magnetic Properties of Magnetite Ultrafine Particles Prepared by W/O Microemulsion MethodJapanese Journal of Applied Physics, 1987
- The preparation of monodisperse colloidal metal particles from microemulsionsColloids and Surfaces, 1982
- Properties of Ba ferrite particles for perpendicular magnetic recording mediaIEEE Transactions on Magnetics, 1982
- Microemulsions and the flexibility of oil/water interfacesThe Journal of Physical Chemistry, 1982
- Formation of Chemically Coprecipitated Barium FerriteJournal of the American Ceramic Society, 1980
- Preparation of High‐Coercivity BaFe12O19Journal of the American Ceramic Society, 1974
- A mechanism of magnetic hysteresis in heterogeneous alloysPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1948