TY  - JOUR
AU  - Obradović, Nina
AU  - Fahrenholtz, William G.
AU  - Filipović, Suzana
AU  - Marković, Smilja
AU  - Blagojević, Vladimir A.
AU  - Lević, Steva
AU  - Savić, Slobodan
AU  - Djordjević, Antonije
AU  - Pavlović, Vladimir
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5344
AB  - Solid-state mechanical activation of MgO and alpha-Al2O3 powders was used to produce MgAl2O4. The cation site occupancy in the resulting MgAl2O4 spinel was investigated using different methods. Differential thermal analysis and thermal gravimetry showed that mechanical activation reduced the spinel formation temperature by around 200 degrees C, and the corresponding activation energy by about 25%. In addition, characteristic temperatures for evaporation of physisorbed water and decomposition of Mg(OH)(2) shifted to lower values, and peaks were more pronounced. Raman spectra were used to characterize the degree of inversion as a function of the sintering temperature for all of the sintered specimens, indicating that the breaking point for ordering of the crystal structure was around 1500 degrees C for non-activated samples, and 1400 degrees C for activated samples.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Formation kinetics and cation inversion in mechanically activated MgAl2O4 spinel ceramics
EP  - 107
IS  - 1
SP  - 95
VL  - 140
DO  - 10.1007/s10973-019-08846-w
ER  - 

@article{
author = "Obradović, Nina and Fahrenholtz, William G. and Filipović, Suzana and Marković, Smilja and Blagojević, Vladimir A. and Lević, Steva and Savić, Slobodan and Djordjević, Antonije and Pavlović, Vladimir",
year = "2020",
abstract = "Solid-state mechanical activation of MgO and alpha-Al2O3 powders was used to produce MgAl2O4. The cation site occupancy in the resulting MgAl2O4 spinel was investigated using different methods. Differential thermal analysis and thermal gravimetry showed that mechanical activation reduced the spinel formation temperature by around 200 degrees C, and the corresponding activation energy by about 25%. In addition, characteristic temperatures for evaporation of physisorbed water and decomposition of Mg(OH)(2) shifted to lower values, and peaks were more pronounced. Raman spectra were used to characterize the degree of inversion as a function of the sintering temperature for all of the sintered specimens, indicating that the breaking point for ordering of the crystal structure was around 1500 degrees C for non-activated samples, and 1400 degrees C for activated samples.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Formation kinetics and cation inversion in mechanically activated MgAl2O4 spinel ceramics",
pages = "107-95",
number = "1",
volume = "140",
doi = "10.1007/s10973-019-08846-w"
}

Obradović, N., Fahrenholtz, W. G., Filipović, S., Marković, S., Blagojević, V. A., Lević, S., Savić, S., Djordjević, A.,& Pavlović, V.. (2020). Formation kinetics and cation inversion in mechanically activated MgAl2O4 spinel ceramics. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 140(1), 95-107.
https://doi.org/10.1007/s10973-019-08846-w

Obradović N, Fahrenholtz WG, Filipović S, Marković S, Blagojević VA, Lević S, Savić S, Djordjević A, Pavlović V. Formation kinetics and cation inversion in mechanically activated MgAl2O4 spinel ceramics. in Journal of Thermal Analysis and Calorimetry. 2020;140(1):95-107.
doi:10.1007/s10973-019-08846-w .

Obradović, Nina, Fahrenholtz, William G., Filipović, Suzana, Marković, Smilja, Blagojević, Vladimir A., Lević, Steva, Savić, Slobodan, Djordjević, Antonije, Pavlović, Vladimir, "Formation kinetics and cation inversion in mechanically activated MgAl2O4 spinel ceramics" in Journal of Thermal Analysis and Calorimetry, 140, no. 1 (2020):95-107,
https://doi.org/10.1007/s10973-019-08846-w . .