TY  - JOUR
AU  - Zivojinović, Jelena
AU  - Pavlović, Vera P.
AU  - Kosanović, Darko
AU  - Marković, Smilja
AU  - Krstić, Jugoslav
AU  - Blagojević, Vladimir A.
AU  - Pavlović, Vladimir
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4358
AB  - Structural changes caused by mechanical activation of SrTiO3 powders were investigated using a variety of methods. Average crystallite size continuously decreased with increased activation time to around 20 nm after 120 min activation, while mesopore volume and specific surface area increased accordingly. Higher activation times lead to increased agglomeration of nanoparticles to form agglomerates of around 2 mu m in size, ultimately producing a relatively stable powder, which exhibits lower microstrain than powders activated for shorter periods of time. Raman spectroscopy shows that the behavior of TO2 and TO4 modes is consistent with a decrease in particle size, while behavior of the nonpolar TO3 mode is markedly different, indicating relaxation of the inversion symmetry in polycrystalline SrTiO3. UV-VIS spectra show that mechanical activation has negligible effect on SrTiO3, with a slight shift caused by TiO2 contamination due to presence of air. Other than this, the mechanical activation process preserves the chemical purity of the initial powder.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders
EP  - 870
SP  - 863
VL  - 695
DO  - 10.1016/j.jallcom.2016.10.159
ER  - 

@article{
author = "Zivojinović, Jelena and Pavlović, Vera P. and Kosanović, Darko and Marković, Smilja and Krstić, Jugoslav and Blagojević, Vladimir A. and Pavlović, Vladimir",
year = "2017",
abstract = "Structural changes caused by mechanical activation of SrTiO3 powders were investigated using a variety of methods. Average crystallite size continuously decreased with increased activation time to around 20 nm after 120 min activation, while mesopore volume and specific surface area increased accordingly. Higher activation times lead to increased agglomeration of nanoparticles to form agglomerates of around 2 mu m in size, ultimately producing a relatively stable powder, which exhibits lower microstrain than powders activated for shorter periods of time. Raman spectroscopy shows that the behavior of TO2 and TO4 modes is consistent with a decrease in particle size, while behavior of the nonpolar TO3 mode is markedly different, indicating relaxation of the inversion symmetry in polycrystalline SrTiO3. UV-VIS spectra show that mechanical activation has negligible effect on SrTiO3, with a slight shift caused by TiO2 contamination due to presence of air. Other than this, the mechanical activation process preserves the chemical purity of the initial powder.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders",
pages = "870-863",
volume = "695",
doi = "10.1016/j.jallcom.2016.10.159"
}

Zivojinović, J., Pavlović, V. P., Kosanović, D., Marković, S., Krstić, J., Blagojević, V. A.,& Pavlović, V.. (2017). The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 695, 863-870.
https://doi.org/10.1016/j.jallcom.2016.10.159

Zivojinović J, Pavlović VP, Kosanović D, Marković S, Krstić J, Blagojević VA, Pavlović V. The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders. in Journal of Alloys and Compounds. 2017;695:863-870.
doi:10.1016/j.jallcom.2016.10.159 .

Zivojinović, Jelena, Pavlović, Vera P., Kosanović, Darko, Marković, Smilja, Krstić, Jugoslav, Blagojević, Vladimir A., Pavlović, Vladimir, "The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders" in Journal of Alloys and Compounds, 695 (2017):863-870,
https://doi.org/10.1016/j.jallcom.2016.10.159 . .