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Synthesis of BaTiO3 from a mechanically activated BaCO3-TiO2 system
Author(s) -
Vera P. Pavlović,
B.D. Stojanović,
Vladimir B. Pavlović,
Zorica Marinkovic-Stanojevic,
Lj. Živković,
Mira Ristić
Publication year - 2008
Publication title -
science of sintering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 25
eISSN - 1820-7413
pISSN - 0350-820X
DOI - 10.2298/sos0801021p
Subject(s) - differential thermal analysis , ball mill , materials science , diffraction , characterization (materials science) , chemical engineering , mechanochemistry , analytical chemistry (journal) , metallurgy , nanotechnology , chemistry , organic chemistry , optics , physics , engineering
In this article the solid state reaction of BaTiO3 formation from a mechanically activated BaCO3-TiO2 system has been investigated. An equimolar mixture of BaCO3 and TiO2 powders was activated in a planetary ball mill in a continual regime for 0, 30 and 90 min, pressed and thermally treated up to 1200oC. The effect of the milling and firing regime on the phase formation was investigated by the X-ray diffraction (XRD) method and differential thermal analysis (DTA). Deconvolution of the experimental DTA curve corresponding to the BaTiO3 synthesis process has been performed. The influence of the activation time on the change of characteristic temperature for each elementary step in the complete solid-state reaction of BaTiO3 formation, was analyzed. These results were correlated with the ones obtained by SEM characterization and by XRD analysis

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