Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites

• Published in: Science of sintering Vol. 55; no. 3; pp. 367 - 381
• Main Authors: Suljagic, Marija, Kremenovic, Aleksandar, Petronijevic, Ivan, Dzunuzovic, Adis, Mirkovic, Miljana, Pavlovic, Vladimir, Andjelkovic, Ljubica
• Format: Journal Article
• Language: English
• Published: Beograd International Institute for the Science of Sintering (IISS) 2023; International Institute for the Science of Sintering, Beograd
• Subjects: Aqueous solutions; Barium; Barium titanates; Ceramics; Cobalt; Cobalt ferrites; Composite materials; Decomposition; Dielectric properties; Drug delivery systems; Electric properties; Ethanol; Ferroelectricity; Frequency ranges; influence of synthesis method; Leakage current; Microemulsions; Morphology; multiferroic; Nanoparticles; Particle size; perovskite/spinel ceramics; Perovskites; Phase composition; Scanning electron microscopy; Sintering; Sintering (powder metallurgy); Spectrum analysis; Surfactants; Synthesis; Temperature; Thermal decomposition; X ray powder diffraction
• ISSN: 0350-820X; 1820-7413
• DOI: 10.2298/SOS220512013S

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.