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Journal of Materials Science

, Volume 29, Issue 18, pp 4847–4851 | Cite as

Properties of mechanochemically pretreated precursors of doped BaTiO3 ceramics

  • P. Baláž
  • J. Briančin
  • Z. Bastl
  • L. Medvecký
  • V. Šepelák
Papers

Abstract

The properties of doped BaTiO3 ceramics prepared from mechanically activated precursors (BaCO3, TiO2, PbO), dopant (Sb) and admixtures (SiO2, Al2O3) were investigated. Mechanical activation of the mixture 1.00 BaCO3 + 1.15 TiO2 + 0.10 PbO brings about an increase in its specific surface and partial amorphization of BaCO3; Ba, O and C occur in the surface of this mixture in at least two chemically different states. BaTiO3 obtained from the above mentioned mechanically activated precursors by high-temperature solid-state synthesis at 1100 ° C consists of homogeneous particles with a narrow particle size distribution.

Keywords

Polymer Particle Size TiO2 SiO2 Al2O3 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • P. Baláž
    • 1
  • J. Briančin
    • 2
  • Z. Bastl
    • 3
  • L. Medvecký
    • 2
  • V. Šepelák
    • 1
  1. 1.Institute of Geotechnic of the Slovak Academy of SciencesKošiceSlovakia
  2. 2.Institute of Material Research of the Slovak Academy of SciencesKošiceSlovakia
  3. 3.J. Heyrovsky-lnstitute of Physical Chemistry and Electrochemistry of the Czech Academy of SciencesPrahaCzech Republic

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