Structural investigation of mechanically activated nanocrystalline BaTiO3 powders
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2011
Authors
Pavlović, Vera P.
Krstić, Jugoslav

Scepanovic, M. J.
Dojčilović, Jablan R.

Minić, Dragica M.

Blanusa, J.

Stevanović, Suzana

Mitic, V.
Pavlović, Vladimir B.

Article (Published version)

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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).
Keywords:
Nanocrystalline BaTiO3 / mechanical activation / X-ray diffraction / Raman spectroscopySource:
Ceramics International, 2011, 37, 7, 2513-2518Publisher:
- Elsevier Sci Ltd, Oxford
Funding / projects:
DOI: 10.1016/j.ceramint.2011.03.064
ISSN: 0272-8842
WoS: 000293759300063
Scopus: 2-s2.0-79960320812
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IHTMTY - 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
Pavlović VP, Krstić J, Scepanovic MJ, Dojčilović JR, Minić DM, Blanusa J, Stevanović S, Mitic V, Pavlović VB. Structural investigation of mechanically activated nanocrystalline BaTiO3 powders. in Ceramics International. 2011;37(7):2513-2518. doi:10.1016/j.ceramint.2011.03.064 .
Pavlović, Vera P., Krstić, Jugoslav, Scepanovic, M. J., Dojčilović, Jablan R., Minić, Dragica M., Blanusa, J., Stevanović, Suzana, Mitic, V., Pavlović, Vladimir B., "Structural investigation of mechanically activated nanocrystalline BaTiO3 powders" in Ceramics International, 37, no. 7 (2011):2513-2518, https://doi.org/10.1016/j.ceramint.2011.03.064 . .