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2009 | 115 | 4 | 808-810
Article title

Characterization of Barium Titanate Ceramic Powders by Raman Spectroscopy

Content
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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
Year
Volume
115
Issue
4
Pages
808-810
Physical description
Dates
published
2009-04
References
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  • 7. B.D. Stojanovic, J. Mater. Proc. Technol. 78, 143 (2003)
  • 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
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv115n412kz
Identifiers
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