Characterization of Barium Titanate Ceramic Powders by Raman Spectroscopy

• Authors: Z. Lazarević , N. Romčević , M. Vijatović , N. Paunović , M. Romčević , B. Stojanović , Z. Dohčević-Mitrović
• Languages of publication: EN

Abstracts

EN

Barium titanate, BaTiO_3 ceramic powders were prepared by mechanochemical synthesis and by the Pechini method. A powder mixture of BaO and TiO_2 was treated in a planetary ball mill in an air atmosphere for up to 1 h, using zirconium oxide vial and zirconium oxide balls as the milling medium. After 60 min BaTiO_3 phase was formed. In both ways BaTiO_3 ceramics were sintered after 2 h on 1300°C without pre-calcinations step. The heating rate was 10°C min^{-1}. The formation of phase and crystal structure of BaTiO_3 was approved by X-ray diffraction analysis and the Raman spectroscopy. The morphology and microstructure of obtained powders were examined by scanning electron microscopy method. Sharp phase transition from ferroelectric to paraelectric state was observed. The hysteresis loop is very well performed with regular sharp characteristic of ferroelectric materials.

Keywords

EN

77.84.-s; 81.07.Bc; 81.20.Ev; 83.85.Hf

Discipline

• 77.84.-s: Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials(for nonlinear optical materials, see 42.70.Mp; for dielectric materials in electrochemistry, see 82.45.Un)
• 83.85.Hf: X-ray and neutron scattering
• 81.20.Ev: Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
• 81.07.Bc: Nanocrystalline materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 4
• Pages: 808-810

Dates

published

2009-04

Contributors

author

Z. Lazarević

• Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia

author

N. Romčević

• Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia

author

M. Vijatović

• The Institute for Multidisciplinary Research, Kneza Viseslava 1a, 11 000 Belgrade, Serbia

author

N. Paunović

• Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia

author

M. Romčević

• Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia

author

B. Stojanović

• The Institute for Multidisciplinary Research, Kneza Viseslava 1a, 11 000 Belgrade, Serbia

author

Z. Dohčević-Mitrović

• Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia

References

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• 8. Z.Ž. Lazarevic, M. Vijatovic, N.Ž. Romcevic, M.J. Romcevic, B. Stojanovic, in: Proc. Electroceramics IX Conf., Manchester 2008, electronic version by CD, C-023-P

Identifiers

DOI

10.12693/APhysPolA.115.808