| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-947 - C8-948 | |
| DOI | https://doi.org/10.1051/jphyscol:19888432 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-947-C8-948
DOI: 10.1051/jphyscol:19888432
1 Physics Department, the Penn State University, University Park, Pa. 16802, U.S.A.
2 Materials Research Lab., the Penn State University, University Park, Pa. 16802, U.S.A.
J. Phys. Colloques 49 (1988) C8-947-C8-948
DOI: 10.1051/jphyscol:19888432
A NOVEL LOW TEMPERATURE PREPARATION OF ULTRAFINE NICKEL-ZINC FERRITES AND THEIR MAGNETIC AND MÖSSBAUER CHARACTERIZATION
T. Pannaparayil1, R. Marande1 et S. Komarneni21 Physics Department, the Penn State University, University Park, Pa. 16802, U.S.A.
2 Materials Research Lab., the Penn State University, University Park, Pa. 16802, U.S.A.
Abstract
Ultrafine particles of Nil-xZnxFe2O4 were prepared under mild hydrothermal conditions by precipitating from metal nitrates. Magnetic and Mössbauer effect measurements revealed the superparamagnetic nature of these particles having average crystallite sizes around 15 nm. These hydrothermal ferrite powders were found to sinter to almost theoretical density with little or no intergranular porosity.