TY  - JOUR
AU  - Pavlović, Vera P.
AU  - Krstić, Jugoslav B.
AU  - Šćepanović, Maja
AU  - Dojčilović, Jablan R.
AU  - Minić, Dragica M.
AU  - Blanuša, Jovan
AU  - Stevanović, Stojan
AU  - Mitić, Vojislav V.
AU  - Pavlović, Vladimir B.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4449
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). (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
PB  - Elsevier
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 B. and Šćepanović, Maja and Dojčilović, Jablan R. and Minić, Dragica M. and Blanuša, Jovan and Stevanović, Stojan and Mitić, Vojislav 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). (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
publisher = "Elsevier",
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. B., Šćepanović, M., Dojčilović, J. R., Minić, D. M., Blanuša, J., Stevanović, S., Mitić, V. V.,& Pavlović, V. B.. (2011). Structural investigation of mechanically activated nanocrystalline BaTiO3 powders. in Ceramics International
Elsevier., 37(7), 2513-2518.
https://doi.org/10.1016/j.ceramint.2011.03.064

Pavlović VP, Krstić JB, Šćepanović M, Dojčilović JR, Minić DM, Blanuša J, Stevanović S, Mitić VV, 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 B., Šćepanović, Maja, Dojčilović, Jablan R., Minić, Dragica M., Blanuša, Jovan, Stevanović, Stojan, Mitić, Vojislav 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 . .

TY  - JOUR
AU  - Pošarac, Milica B.
AU  - Devečerski, Aleksandar
AU  - Volkov-Husović, Tatjana
AU  - Matović, Branko
AU  - Minić, Dragica M.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3747
AB  - The effect of yttria additive on the thermal shock behavior of magnesium aluminate spinel has been investigated. As a starting material we used spinel (MgAl2O4)obtained by the modified glycine nitrate procedure (MGNP). Sintered products were characterized in terms Of phase analysis, densities, thermal shock, monitoring the damaged surface area in the refractory specimen during thermal shock and ultrasonic determination of the Dynamic Young modulus of elasticity. It was found that a new phase between yttria and alumina is formed, which improved thermal shock properties of the spinel refractories. Also densification of samples is enhanced by yttria addition.
T2  - Science of Sintering
T1  - The Effect of Y2O3 Addition on Thermal Shock Behavior of Magnesium Aluminate Spinel
VL  - 41
IS  - 1
SP  - 75
EP  - 81
DO  - 10.2298/SOS0901075P
ER  - 

@article{
author = "Pošarac, Milica B. and Devečerski, Aleksandar and Volkov-Husović, Tatjana and Matović, Branko and Minić, Dragica M.",
year = "2009",
abstract = "The effect of yttria additive on the thermal shock behavior of magnesium aluminate spinel has been investigated. As a starting material we used spinel (MgAl2O4)obtained by the modified glycine nitrate procedure (MGNP). Sintered products were characterized in terms Of phase analysis, densities, thermal shock, monitoring the damaged surface area in the refractory specimen during thermal shock and ultrasonic determination of the Dynamic Young modulus of elasticity. It was found that a new phase between yttria and alumina is formed, which improved thermal shock properties of the spinel refractories. Also densification of samples is enhanced by yttria addition.",
journal = "Science of Sintering",
title = "The Effect of Y2O3 Addition on Thermal Shock Behavior of Magnesium Aluminate Spinel",
volume = "41",
number = "1",
pages = "75-81",
doi = "10.2298/SOS0901075P"
}

Pošarac, M. B., Devečerski, A., Volkov-Husović, T., Matović, B.,& Minić, D. M.. (2009). The Effect of Y2O3 Addition on Thermal Shock Behavior of Magnesium Aluminate Spinel. in Science of Sintering, 41(1), 75-81.
https://doi.org/10.2298/SOS0901075P

Pošarac MB, Devečerski A, Volkov-Husović T, Matović B, Minić DM. The Effect of Y2O3 Addition on Thermal Shock Behavior of Magnesium Aluminate Spinel. in Science of Sintering. 2009;41(1):75-81.
doi:10.2298/SOS0901075P .

Pošarac, Milica B., Devečerski, Aleksandar, Volkov-Husović, Tatjana, Matović, Branko, Minić, Dragica M., "The Effect of Y2O3 Addition on Thermal Shock Behavior of Magnesium Aluminate Spinel" in Science of Sintering, 41, no. 1 (2009):75-81,
https://doi.org/10.2298/SOS0901075P . .