Understanding the Effect of Synthesis and Sintering Temperature on the Functional Properties of Barium Titanate/Cobalt Ferrite Composites

Authors

  • Marija Šuljagić University of Belgrade-Institute of Chemistry, Technology and Metallurgy, Department of Chemistry
  • Aleksandar Kremenović Faculty of Mining and Geology, University of Belgrade
  • Ivan Petronijević Faculty of Physics, University of Belgrade
  • Adis Džunuzović Institute for Multidisciplinary Research, University of Belgrade
  • Miljana Mirković Department of Materials Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
  • Vladimir Pavlović University of Belgrade, Faculty of Agriculture
  • Ljubica Andjelković University of Belgrade-Institute of Chemistry, Technology and Metallurgy, Department of Chemistry

Abstract

To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the samples sintered at 1300°C had better performances than those sintered at 1150°C. The composite synthesized by thermal decomposition and sintered at 1300 °C stands out among other prepared BaTiO3/CoFe2O4 ceramics, owing to high stability in the wide frequency range and low leakage currents. The obtained results indicate that such composite might be successfully applied as a functional multiferroic.

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Published

2023-09-23

Issue

Vol. 55 No. 3 (2023)

Section

Articles