Characterization of nanodimensional Ni-Zn ferrite prepared by mechanochemical and thermal methods.

Elina Manova (1) , Daniela Paneva (1) , Boris Kunev (1) , Éric Rivière (2) , Claude Estournès (3) , Ivan Mitov (1)

1 Institute of Catalysis (Sofia, Bulgaria)
2 ICMMO - Institut de Chimie Moléculaire et des Matériaux d'Orsay
3 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux

Nickel zinc ferrite nanoparticles, Ni1−xZnxFe2O4 (x = 0, 0.2, 0.5, 0.8, 1.0), with dimensions below 10 nm have been prepared by combining chemical precipitation with high-energy ball milling. For comparison, their analogues obtained by thermal synthesis have also been studied. Mössbauer spectroscopy, X-ray diffraction, and magnetic measurements are used for the characterization of the obtained materials. X-ray diffraction shows that after 3h of mechanical treatment ferrites containing zinc are formed, while 6h of treatment is needed to obtain NiFe2O4. The magnetic properties of the samples exhibit a strong dependence on the phase composition, particle size and preparation method.

Mots clés: Matériaux; X-ray diffraction; Nanoparticles; Mössbauer spectroscopy; Magnetic measurements

Domaines: Matériaux; Matériaux

Elina Manova, Daniela Paneva, Boris Kunev, Éric Rivière, Claude Estournès, et al.. Characterization of nanodimensional Ni-Zn ferrite prepared by mechanochemical and thermal methods.. Journal of Physics: Conference Series, 2010, 217 (1), pp.0. ⟨10.1088/1742-6596/217/1/012102⟩. ⟨hal-03551039⟩