• Journal of Advanced Dielectrics
  • Vol. 11, Issue 3, 2140001 (2021)
Javier E. Camargo*, Leandro A. Ramajo*, and Miriam S. Castro*
Author Affiliations
  • División Cerámicos, INTEMA Instituto de Investigaciones en Ciencia y, Tecnología de Materiales (INTEMA, CONICET-UNMdP), Av. Colón 10850, 7600, Mar del Plata, Argentina
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    DOI: 10.1142/S2010135X21400014 Cite this Article
    Javier E. Camargo, Leandro A. Ramajo, Miriam S. Castro. Synthesis and evaluation of nickel cobalt ferrite magnetic ceramics employing two alternative routes[J]. Journal of Advanced Dielectrics, 2021, 11(3): 2140001 Copy Citation Text show less

    Abstract

    Ni0.5Co0.5Fe2O4 (NCF) powders were obtained employing two alternative synthesis routes: solid-state reaction and Pechini’s methods. The ceramic powders were pressed and sintered in the temperature range of 1100C to 1250C. Microstructural and structural properties were evaluated by SEM, XRD, and Raman spectroscopy. Magnetic hysteresis loops of sintered samples were also recorded. A secondary phase was observed in samples synthesized by Pechini’s method, whereas samples obtained by the solid-state reaction method, with the mechanochemical activation of the reagents, only produced the spinel structure. Magnetic properties of samples obtained by the solid-state method displayed higher magnetic saturations and lower coercive fields than those obtained from the Pechini’s method.Ni0.5Co0.5Fe2O4 (NCF) powders were obtained employing two alternative synthesis routes: solid-state reaction and Pechini’s methods. The ceramic powders were pressed and sintered in the temperature range of 1100C to 1250C. Microstructural and structural properties were evaluated by SEM, XRD, and Raman spectroscopy. Magnetic hysteresis loops of sintered samples were also recorded. A secondary phase was observed in samples synthesized by Pechini’s method, whereas samples obtained by the solid-state reaction method, with the mechanochemical activation of the reagents, only produced the spinel structure. Magnetic properties of samples obtained by the solid-state method displayed higher magnetic saturations and lower coercive fields than those obtained from the Pechini’s method.
    Javier E. Camargo, Leandro A. Ramajo, Miriam S. Castro. Synthesis and evaluation of nickel cobalt ferrite magnetic ceramics employing two alternative routes[J]. Journal of Advanced Dielectrics, 2021, 11(3): 2140001
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