In this article, in order to obtain tetragonal nanocrystalline BaTiO3, structural investigations of mechanically activated BaTiO3 powder have been performed. A mercury porosimetry analysis and scanning electron microscopy method have been applied for determination of the specific pore volume, porosity and microstructure morphology of the samples. The lattice vibration spectra of nonactivated and activated powders, their phase composition, lattice microstrains and the mean size of coherently diffracting domains were examined by Raman spectroscopy and the X-ray powder diffraction method. The average crystal structure of obtained nanocrystalline powders, estimated from X-ray diffraction data, gave evidence of retained, but slightly sustained tetragonality of powders, even for particles as small as similar to 30 nm. Raman spectroscopy also gave clear evidence for local tetragonal symmetries, in particular through the presence of a band at similar to 307 cm(-1).
TY - JOUR
AU - Pavlović, Vera P.
AU - Krstić, Jugoslav
AU - Scepanovic, M. J.
AU - Dojčilović, Jablan R.
AU - Minić, Dragica M.
AU - Blanusa, J.
AU - Stevanović, Suzana
AU - Mitic, V.
AU - Pavlović, Vladimir B.
PY - 2011
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/808
AB - In this article, in order to obtain tetragonal nanocrystalline BaTiO3, structural investigations of mechanically activated BaTiO3 powder have been performed. A mercury porosimetry analysis and scanning electron microscopy method have been applied for determination of the specific pore volume, porosity and microstructure morphology of the samples. The lattice vibration spectra of nonactivated and activated powders, their phase composition, lattice microstrains and the mean size of coherently diffracting domains were examined by Raman spectroscopy and the X-ray powder diffraction method. The average crystal structure of obtained nanocrystalline powders, estimated from X-ray diffraction data, gave evidence of retained, but slightly sustained tetragonality of powders, even for particles as small as similar to 30 nm. Raman spectroscopy also gave clear evidence for local tetragonal symmetries, in particular through the presence of a band at similar to 307 cm(-1).
PB - Elsevier Sci Ltd, Oxford
T2 - Ceramics International
T1 - Structural investigation of mechanically activated nanocrystalline BaTiO3 powders
VL - 37
IS - 7
SP - 2513
EP - 2518
DO - 10.1016/j.ceramint.2011.03.064
ER -
@article{
author = "Pavlović, Vera P. and Krstić, Jugoslav and Scepanovic, M. J. and Dojčilović, Jablan R. and Minić, Dragica M. and Blanusa, J. and Stevanović, Suzana and Mitic, V. and Pavlović, Vladimir B.",
year = "2011",
abstract = "In this article, in order to obtain tetragonal nanocrystalline BaTiO3, structural investigations of mechanically activated BaTiO3 powder have been performed. A mercury porosimetry analysis and scanning electron microscopy method have been applied for determination of the specific pore volume, porosity and microstructure morphology of the samples. The lattice vibration spectra of nonactivated and activated powders, their phase composition, lattice microstrains and the mean size of coherently diffracting domains were examined by Raman spectroscopy and the X-ray powder diffraction method. The average crystal structure of obtained nanocrystalline powders, estimated from X-ray diffraction data, gave evidence of retained, but slightly sustained tetragonality of powders, even for particles as small as similar to 30 nm. Raman spectroscopy also gave clear evidence for local tetragonal symmetries, in particular through the presence of a band at similar to 307 cm(-1).",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Structural investigation of mechanically activated nanocrystalline BaTiO3 powders",
volume = "37",
number = "7",
pages = "2513-2518",
doi = "10.1016/j.ceramint.2011.03.064"
}
Pavlović, V. P., Krstić, J., Scepanovic, M. J., Dojčilović, J. R., Minić, D. M., Blanusa, J., Stevanović, S., Mitic, V.,& Pavlović, V. B.. (2011). Structural investigation of mechanically activated nanocrystalline BaTiO3 powders. in Ceramics International
Elsevier Sci Ltd, Oxford., 37(7), 2513-2518.
https://doi.org/10.1016/j.ceramint.2011.03.064
