Structure and Properties of Nanocrystalline Tetragonal BaTiO3 Prepared by Combustion Solid State Synthesis

Authors

  • S. Filipović Institute of Technical Sciences of SASA
  • Lj. Anđelković University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Chemistry
  • D. Jeremić Innovation Center of the Faculty of Chemistry, University of Belgrade
  • P. Vulić University of Belgrade, Faculty of Mining and Geology
  • A. S. Nikolić University of Belgrade, Faculty of Chemistry
  • S. Marković Institute of Technical Sciences of SASA
  • V. Paunović University of Niš, Faculty of Electronic Engineering
  • S. Lević University of Belgrade, Faculty of Agriculture
  • V. B. Pavlović University of Belgrade, Faculty of Agriculture

Abstract

Barium titanate (BaTiO3) attracts high scientific and technological attention due to good dielectric and electromechanical properties. Although BaTiO3 is one of the most frequently investigated ferroelectric materials, the need for finding new and/or improved synthesis methods of this material still exists. In this paper, a novel, mild synthesis route for producing tetragonal BaTiO3 from barium nitrate and Ti-oxalate precursor is presented. Morphology of the prepared and subsequently sintered BaTiO3 was determined by SEM. Particle size distribution of the as prepared powder was monitored by the laser diffraction. The phase composition, structure and lattice dynamics were investigated by XRD and Raman spectroscopy. Finally, dielectric parameters were determined in the temperature range from 30 to 180 oC, and within a variety of frequencies. Curie temperature was detected at 130 oC.

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Published

2020-08-05

Issue

Vol. 52 No. 3 (2020)

Section

Articles