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Properties of mechanochemically pretreated precursors of doped BaTiO3 ceramics

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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.

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Authors and Affiliations

  1. Institute of Geotechnic of the Slovak Academy of Sciences, 043 53, Košice, Slovakia

    P. Baláž & V. Šepelák

  2. Institute of Material Research of the Slovak Academy of Sciences, 043 57, Košice, Slovakia

    J. Briančin & L. Medvecký

  3. J. Heyrovsky-lnstitute of Physical Chemistry and Electrochemistry of the Czech Academy of Sciences, 182 23, Praha, Czech Republic

    Z. Bastl

Authors
  1. P. Baláž
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  2. J. Briančin
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  3. Z. Bastl
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  4. L. Medvecký
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  5. V. Šepelák
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Baláž, P., Briančin, J., Bastl, Z. et al. Properties of mechanochemically pretreated precursors of doped BaTiO3 ceramics. Journal of Materials Science 29, 4847–4851 (1994). https://doi.org/10.1007/BF00356532

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  • DOI: https://doi.org/10.1007/BF00356532

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