Labus, Nebojša

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orcid::0000-0003-1557-0711
  • Labus, Nebojša (58)
Projects

Author's Bibliography

Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics

Kosanović, Darko; Labus, Nebojša; Živojinović, Jelena; Peleš Tadić, Adriana; Blagojević, Vladimir A.; Pavlović, Vladimir B.

(Belgrade : ETRAN, 2020)

TY  - JOUR
AU  - Kosanović, Darko
AU  - Labus, Nebojša
AU  - Živojinović, Jelena
AU  - Peleš Tadić, Adriana
AU  - Blagojević, Vladimir A.
AU  - Pavlović, Vladimir B.
PY  - 2020
AB  - The influence of mechanical activation on the formation, sintering kinetics and morphology was investigated in sintered barium strontium titanate (BST) ceramics with different Ba-to-Sr ratios. Initial powders were mechanically activated for 20 and 120 min, leading to mechano-chemical reaction and formation of BaxSr1-xTiO3 phases. Agglomeration was found to represent an important factor in the process of formation of BaxSr1-xTiO3 phases around 800 oC and during sintering. It reduces the effectiveness of mechanical activation on formation of BaxSr1-xTiO3 phases beyond the short period (20 min), while in the process of sintering, prolonged mechanical activation (120 min) leads to a significant reduction in sintering temperature and the corresponding value of activation energy. In addition, all three systems show a phase transformation around 1100 oC, attributed to the hexagonal-to-cubic phase transition. Morphology of the final sintered ceramics can be correlated primarily with the state of the pre-sintered powder, where mechanically activated powders with smaller particle size produced more compact and less porous final product.
PB  - Belgrade : ETRAN
T2  - Science of Sintering
T1  - Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics
SP  - 371
EP  - 385
VL  - 52
IS  - 4
DO  - 10.2298/SOS2004371K
ER  - 
@article{
author = "Kosanović, Darko and Labus, Nebojša and Živojinović, Jelena and Peleš Tadić, Adriana and Blagojević, Vladimir A. and Pavlović, Vladimir B.",
year = "2020",
abstract = "The influence of mechanical activation on the formation, sintering kinetics and morphology was investigated in sintered barium strontium titanate (BST) ceramics with different Ba-to-Sr ratios. Initial powders were mechanically activated for 20 and 120 min, leading to mechano-chemical reaction and formation of BaxSr1-xTiO3 phases. Agglomeration was found to represent an important factor in the process of formation of BaxSr1-xTiO3 phases around 800 oC and during sintering. It reduces the effectiveness of mechanical activation on formation of BaxSr1-xTiO3 phases beyond the short period (20 min), while in the process of sintering, prolonged mechanical activation (120 min) leads to a significant reduction in sintering temperature and the corresponding value of activation energy. In addition, all three systems show a phase transformation around 1100 oC, attributed to the hexagonal-to-cubic phase transition. Morphology of the final sintered ceramics can be correlated primarily with the state of the pre-sintered powder, where mechanically activated powders with smaller particle size produced more compact and less porous final product.",
publisher = "Belgrade : ETRAN",
journal = "Science of Sintering",
title = "Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics",
pages = "371-385",
volume = "52",
number = "4",
doi = "10.2298/SOS2004371K"
}
Kosanović, D., Labus, N., Živojinović, J., Peleš Tadić, A., Blagojević, V. A.,& Pavlović, V. B. (2020). Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics.
Science of Sintering
Belgrade : ETRAN., 52(4), 371-385.
https://doi.org/10.2298/SOS2004371K
Kosanović D, Labus N, Živojinović J, Peleš Tadić A, Blagojević VA, Pavlović VB. Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics. Science of Sintering. 2020;52(4):371-385.
doi:10.2298/SOS2004371K.
Kosanović Darko, Labus Nebojša, Živojinović Jelena, Peleš Tadić Adriana, Blagojević Vladimir A., Pavlović Vladimir B., "Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics" Science of Sintering, 52, no. 4 (2020):371-385,
https://doi.org/10.2298/SOS2004371K .

Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing

Nikolić, Maria Vesna; Krstić, Jugoslav; Labus, Nebojša; Luković, Miloljub; Dojčinović, Milena; Radovanović, Milan; Tadić, Nenad

(Elsevier, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Labus, Nebojša
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Radovanović, Milan
AU  - Tadić, Nenad
PY  - 2020
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.
PB  - Elsevier
T2  - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
SP  - 114547
VL  - 257
DO  - 10.1016/j.mseb.2020.114547
ER  - 
@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav and Labus, Nebojša and Luković, Miloljub and Dojčinović, Milena and Radovanović, Milan and Tadić, Nenad",
year = "2020",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.",
publisher = "Elsevier",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
pages = "114547",
volume = "257",
doi = "10.1016/j.mseb.2020.114547"
}
Nikolić, M. V., Krstić, J., Labus, N., Luković, M., Dojčinović, M., Radovanović, M.,& Tadić, N. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing.
Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Elsevier., 257, 114547.
https://doi.org/10.1016/j.mseb.2020.114547
Nikolić MV, Krstić J, Labus N, Luković M, Dojčinović M, Radovanović M, Tadić N. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2020;257:114547.
doi:10.1016/j.mseb.2020.114547.
Nikolić Maria Vesna, Krstić Jugoslav, Labus Nebojša, Luković Miloljub, Dojčinović Milena, Radovanović Milan, Tadić Nenad, "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 257 (2020):114547,
https://doi.org/10.1016/j.mseb.2020.114547 .
2
1
1

Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material

Nikolić, Maria Vesna; Dojčinović, Milena; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Labus, Nebojša

(IEEE, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Labus, Nebojša
PY  - 2020
AB  - Nanocomposite Zn2SnO4/SnO2 powder was
obtained by solid state synthesis from homogenized
starting nanopowders of ZnO and SnO2, mixed in the 1:1
molar ratio, structurally and morphologically characterized
using X-ray diffraction (XRD) and Scanning Electron
Microscopy (SEM). Thick film paste was made by adding
organic vehicles to the obtained powder. Three to five
layers (layer thickness approx. 12 µm) were screen printed
on alumina substrate with small test PdAg electrodes and
fired at 600oC for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing.
Impedance response was studied at the working temperatures of 25 and 50oC in a humidity chamber where the
relative humidity (RH) was 30-90% and measured frequency 42 Hz – 1 MHz. With increase in film thickness the overall
sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 µm), from 23.4 to 0.25 MΩ (48 µm) and from
6.8 to 0.02 MΩ (36 µm) at 25 oC, while at 50 oC and also 100 Hz it reduced from 14 MΩ to 0.72 MΩ (48 µm) for RH 30 and
90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for
application in humidity sensing.
PB  - IEEE
T2  - IEEE Sensors Journal
T1  - Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material
SP  - 7509
EP  - 7516
VL  - 20
IS  - 14
DO  - 10.1109/JSEN.2020.2983135
ER  - 
@article{
author = "Nikolić, Maria Vesna and Dojčinović, Milena and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Labus, Nebojša",
year = "2020",
abstract = "Nanocomposite Zn2SnO4/SnO2 powder was
obtained by solid state synthesis from homogenized
starting nanopowders of ZnO and SnO2, mixed in the 1:1
molar ratio, structurally and morphologically characterized
using X-ray diffraction (XRD) and Scanning Electron
Microscopy (SEM). Thick film paste was made by adding
organic vehicles to the obtained powder. Three to five
layers (layer thickness approx. 12 µm) were screen printed
on alumina substrate with small test PdAg electrodes and
fired at 600oC for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing.
Impedance response was studied at the working temperatures of 25 and 50oC in a humidity chamber where the
relative humidity (RH) was 30-90% and measured frequency 42 Hz – 1 MHz. With increase in film thickness the overall
sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 µm), from 23.4 to 0.25 MΩ (48 µm) and from
6.8 to 0.02 MΩ (36 µm) at 25 oC, while at 50 oC and also 100 Hz it reduced from 14 MΩ to 0.72 MΩ (48 µm) for RH 30 and
90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for
application in humidity sensing.",
publisher = "IEEE",
journal = "IEEE Sensors Journal",
title = "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material",
pages = "7509-7516",
volume = "20",
number = "14",
doi = "10.1109/JSEN.2020.2983135"
}
Nikolić, M. V., Dojčinović, M., Vasiljević, Z. Ž., Luković, M. D.,& Labus, N. (2020). Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material.
IEEE Sensors Journal
IEEE., 20(14), 7509-7516.
https://doi.org/10.1109/JSEN.2020.2983135
Nikolić MV, Dojčinović M, Vasiljević ZŽ, Luković MD, Labus N. Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material. IEEE Sensors Journal. 2020;20(14):7509-7516.
doi:10.1109/JSEN.2020.2983135.
Nikolić Maria Vesna, Dojčinović Milena, Vasiljević Zorka Ž., Luković Miloljub D., Labus Nebojša, "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material" IEEE Sensors Journal, 20, no. 14 (2020):7509-7516,
https://doi.org/10.1109/JSEN.2020.2983135 .
4
1
3

Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material

Nikolić, Maria Vesna; Dojčinović, Milena; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Labus, Nebojša

(IEEE, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Labus, Nebojša
PY  - 2020
AB  - Nanocomposite Zn2SnO4/SnO2 powder wasobtained by solid state synthesis from homogenizedstarting nanopowders of ZnO and SnO2, mixed in the 1:1molar ratio, structurally and morphologically characterizedusing X-ray diffraction (XRD) and Scanning ElectronMicroscopy (SEM). Thick film paste was made by addingorganic vehicles to the obtained powder. Three to fivelayers (layer thickness approx. 12 µm) were screen printedon alumina substrate with small test PdAg electrodes andfired at 600oC for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing.Impedance response was studied at the working temperatures of 25 and 50oC in a humidity chamber where therelative humidity (RH) was 30-90% and measured frequency 42 Hz – 1 MHz. With increase in film thickness the overallsensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 µm), from 23.4 to 0.25 MΩ (48 µm) and from6.8 to 0.02 MΩ (36 µm) at 25 oC, while at 50 oC and also 100 Hz it reduced from 14 MΩ to 0.72 MΩ (48 µm) for RH 30 and90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential forapplication in humidity sensing.
PB  - IEEE
T2  - IEEE Sensors Journal
T1  - Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material
SP  - 7509
EP  - 7516
VL  - 20
IS  - 14
DO  - 10.1109/JSEN.2020.2983135
ER  - 
@article{
author = "Nikolić, Maria Vesna and Dojčinović, Milena and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Labus, Nebojša",
year = "2020",
abstract = "Nanocomposite Zn2SnO4/SnO2 powder wasobtained by solid state synthesis from homogenizedstarting nanopowders of ZnO and SnO2, mixed in the 1:1molar ratio, structurally and morphologically characterizedusing X-ray diffraction (XRD) and Scanning ElectronMicroscopy (SEM). Thick film paste was made by addingorganic vehicles to the obtained powder. Three to fivelayers (layer thickness approx. 12 µm) were screen printedon alumina substrate with small test PdAg electrodes andfired at 600oC for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing.Impedance response was studied at the working temperatures of 25 and 50oC in a humidity chamber where therelative humidity (RH) was 30-90% and measured frequency 42 Hz – 1 MHz. With increase in film thickness the overallsensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 µm), from 23.4 to 0.25 MΩ (48 µm) and from6.8 to 0.02 MΩ (36 µm) at 25 oC, while at 50 oC and also 100 Hz it reduced from 14 MΩ to 0.72 MΩ (48 µm) for RH 30 and90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential forapplication in humidity sensing.",
publisher = "IEEE",
journal = "IEEE Sensors Journal",
title = "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material",
pages = "7509-7516",
volume = "20",
number = "14",
doi = "10.1109/JSEN.2020.2983135"
}
Nikolić, M. V., Dojčinović, M., Vasiljević, Z. Ž., Luković, M. D.,& Labus, N. (2020). Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material.
IEEE Sensors Journal
IEEE., 20(14), 7509-7516.
https://doi.org/10.1109/JSEN.2020.2983135
Nikolić MV, Dojčinović M, Vasiljević ZŽ, Luković MD, Labus N. Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material. IEEE Sensors Journal. 2020;20(14):7509-7516.
doi:10.1109/JSEN.2020.2983135.
Nikolić Maria Vesna, Dojčinović Milena, Vasiljević Zorka Ž., Luković Miloljub D., Labus Nebojša, "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material" IEEE Sensors Journal, 20, no. 14 (2020):7509-7516,
https://doi.org/10.1109/JSEN.2020.2983135 .
4
1
3

Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing

Nikolić, Maria Vesna; Krstić, Jugoslav; Labus, Nebojša; Luković, Miloljub; Dojčinović, Milena; Radovanović, Milan; Tadić, Nenad

(Elsevier, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Labus, Nebojša
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Radovanović, Milan
AU  - Tadić, Nenad
PY  - 2020
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.
PB  - Elsevier
T2  - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
SP  - 114547
VL  - 257
DO  - 10.1016/j.mseb.2020.114547
ER  - 
@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav and Labus, Nebojša and Luković, Miloljub and Dojčinović, Milena and Radovanović, Milan and Tadić, Nenad",
year = "2020",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.",
publisher = "Elsevier",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
pages = "114547",
volume = "257",
doi = "10.1016/j.mseb.2020.114547"
}
Nikolić, M. V., Krstić, J., Labus, N., Luković, M., Dojčinović, M., Radovanović, M.,& Tadić, N. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing.
Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Elsevier., 257, 114547.
https://doi.org/10.1016/j.mseb.2020.114547
Nikolić MV, Krstić J, Labus N, Luković M, Dojčinović M, Radovanović M, Tadić N. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2020;257:114547.
doi:10.1016/j.mseb.2020.114547.
Nikolić Maria Vesna, Krstić Jugoslav, Labus Nebojša, Luković Miloljub, Dojčinović Milena, Radovanović Milan, Tadić Nenad, "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 257 (2020):114547,
https://doi.org/10.1016/j.mseb.2020.114547 .
2
1
1

Analysis of the initial-stage sintering of mechanically activated SrTiO3

Živojinović, Jelena; Pavlović, Vera P.; Labus, Nebojša; Blagojević, Vladimir A.; Kosanović, Darko; Pavlović, Vladimir B.

(ETRAN, 2019)

TY  - JOUR
AU  - Živojinović, Jelena
AU  - Pavlović, Vera P.
AU  - Labus, Nebojša
AU  - Blagojević, Vladimir A.
AU  - Kosanović, Darko
AU  - Pavlović, Vladimir B.
PY  - 2019
AB  - The initial-stage of sintering plays a significant role in determining the final microstructure that defines the main characteristics of electroceramics materials such as functional properties. In this article non-isothermal sintering of non-activated and mechanically activated SrTiO3 samples was investigated up to 1300 °C. Dilatometric curves indicate that mechanical activation leads to an earlier onset of sintering, suggesting that it should lead to a more homogenous and denser sintered product. Analysis of the initial stage of sintering reveals that the sintering process of all examinated samples consists of two or three overlapping single-step processes, with a change in the dominant mass transport mechanism. The values of apparent activation energy of the considered single-step process exhibit a significant decrease with an increase in mechanical activation time. The values of the density of samples after isothermal sintering indicate that the final stage of sintering has not been reached by 1300 °C. © 2018 Authors.
PB  - ETRAN
T2  - Science of Sintering
T1  - Analysis of the initial-stage sintering of mechanically activated SrTiO3
SP  - 199
EP  - 208
VL  - 51
IS  - 2
DO  - 10.2298/SOS1902199Z
ER  - 
@article{
author = "Živojinović, Jelena and Pavlović, Vera P. and Labus, Nebojša and Blagojević, Vladimir A. and Kosanović, Darko and Pavlović, Vladimir B.",
year = "2019",
abstract = "The initial-stage of sintering plays a significant role in determining the final microstructure that defines the main characteristics of electroceramics materials such as functional properties. In this article non-isothermal sintering of non-activated and mechanically activated SrTiO3 samples was investigated up to 1300 °C. Dilatometric curves indicate that mechanical activation leads to an earlier onset of sintering, suggesting that it should lead to a more homogenous and denser sintered product. Analysis of the initial stage of sintering reveals that the sintering process of all examinated samples consists of two or three overlapping single-step processes, with a change in the dominant mass transport mechanism. The values of apparent activation energy of the considered single-step process exhibit a significant decrease with an increase in mechanical activation time. The values of the density of samples after isothermal sintering indicate that the final stage of sintering has not been reached by 1300 °C. © 2018 Authors.",
publisher = "ETRAN",
journal = "Science of Sintering",
title = "Analysis of the initial-stage sintering of mechanically activated SrTiO3",
pages = "199-208",
volume = "51",
number = "2",
doi = "10.2298/SOS1902199Z"
}
Živojinović, J., Pavlović, V. P., Labus, N., Blagojević, V. A., Kosanović, D.,& Pavlović, V. B. (2019). Analysis of the initial-stage sintering of mechanically activated SrTiO3.
Science of Sintering
ETRAN., 51(2), 199-208.
https://doi.org/10.2298/SOS1902199Z
Živojinović J, Pavlović VP, Labus N, Blagojević VA, Kosanović D, Pavlović VB. Analysis of the initial-stage sintering of mechanically activated SrTiO3. Science of Sintering. 2019;51(2):199-208.
doi:10.2298/SOS1902199Z.
Živojinović Jelena, Pavlović Vera P., Labus Nebojša, Blagojević Vladimir A., Kosanović Darko, Pavlović Vladimir B., "Analysis of the initial-stage sintering of mechanically activated SrTiO3" Science of Sintering, 51, no. 2 (2019):199-208,
https://doi.org/10.2298/SOS1902199Z .
2
2

Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material

Nikolić, Maria Vesna; Dojčinović, Milena; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Labus, Nebojša

(IEEE, 2019)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Labus, Nebojša
PY  - 2019
AB  - Nanocomposite Zn2SnO4/SnO2 powder was obtained by solid state synthesis from homogenized starting nanopowders of ZnO and SnO2 mixed in the 1:1 molar ratio, structurally and morphologically characterized using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thick film paste was made by adding organic vehicles to the obtained powder. Three to five layers (layer thickness approx. 12 μm) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600°C for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing. Impedance response was studied at the working temperatures of 25 and 50°in a humidity chamber where the relative humidity (RH) was 30-90% and measured frequency 42 Hz - 1 MHz. With increase in film thickness the overall sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 μm), from 23.4 to 0.25 MΩ (48 μm) and from 6.8 to 0.02 MΩ (36 μm) at 25°C, while at 50°C the overall measured impedance was lower, and reduced from 14 MΩ to 0.72 MΩ (48 μm) for RH 30 and 90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for application in humidity sensing.
PB  - IEEE
C3  - 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
T1  - Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material
SP  - 1
EP  - 3
DO  - 10.1109/FLEPS.2019.8792304
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Dojčinović, Milena and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Labus, Nebojša",
year = "2019",
abstract = "Nanocomposite Zn2SnO4/SnO2 powder was obtained by solid state synthesis from homogenized starting nanopowders of ZnO and SnO2 mixed in the 1:1 molar ratio, structurally and morphologically characterized using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thick film paste was made by adding organic vehicles to the obtained powder. Three to five layers (layer thickness approx. 12 μm) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600°C for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing. Impedance response was studied at the working temperatures of 25 and 50°in a humidity chamber where the relative humidity (RH) was 30-90% and measured frequency 42 Hz - 1 MHz. With increase in film thickness the overall sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 μm), from 23.4 to 0.25 MΩ (48 μm) and from 6.8 to 0.02 MΩ (36 μm) at 25°C, while at 50°C the overall measured impedance was lower, and reduced from 14 MΩ to 0.72 MΩ (48 μm) for RH 30 and 90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for application in humidity sensing.",
publisher = "IEEE",
journal = "2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)",
title = "Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material",
pages = "1-3",
doi = "10.1109/FLEPS.2019.8792304"
}
Nikolić, M. V., Dojčinović, M., Vasiljević, Z. Ž., Luković, M. D.,& Labus, N. (2019). Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material.
2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
IEEE., 1-3.
https://doi.org/10.1109/FLEPS.2019.8792304
Nikolić MV, Dojčinović M, Vasiljević ZŽ, Luković MD, Labus N. Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material. 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). 2019;:1-3.
doi:10.1109/FLEPS.2019.8792304.
Nikolić Maria Vesna, Dojčinović Milena, Vasiljević Zorka Ž., Luković Miloljub D., Labus Nebojša, "Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material" 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) (2019):1-3,
https://doi.org/10.1109/FLEPS.2019.8792304 .

Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material

Nikolić, Maria Vesna; Dojčinović, Milena; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Labus, Nebojša

(IEEE, 2019)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Labus, Nebojša
PY  - 2019
AB  - Nanocomposite Zn2SnO4/SnO2 powder was obtained by solid state synthesis from homogenized starting nanopowders of ZnO and SnO2 mixed in the 1:1 molar ratio, structurally and morphologically characterized using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thick film paste was made by adding organic vehicles to the obtained powder. Three to five layers (layer thickness approx. 12 μm) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600°C for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing. Impedance response was studied at the working temperatures of 25 and 50°in a humidity chamber where the relative humidity (RH) was 30-90% and measured frequency 42 Hz - 1 MHz. With increase in film thickness the overall sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 μm), from 23.4 to 0.25 MΩ (48 μm) and from 6.8 to 0.02 MΩ (36 μm) at 25°C, while at 50°C the overall measured impedance was lower, and reduced from 14 MΩ to 0.72 MΩ (48 μm) for RH 30 and 90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for application in humidity sensing.
PB  - IEEE
C3  - 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
T1  - Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material
SP  - 1
EP  - 3
DO  - 10.1109/FLEPS.2019.8792304
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Dojčinović, Milena and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Labus, Nebojša",
year = "2019",
abstract = "Nanocomposite Zn2SnO4/SnO2 powder was obtained by solid state synthesis from homogenized starting nanopowders of ZnO and SnO2 mixed in the 1:1 molar ratio, structurally and morphologically characterized using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thick film paste was made by adding organic vehicles to the obtained powder. Three to five layers (layer thickness approx. 12 μm) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600°C for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing. Impedance response was studied at the working temperatures of 25 and 50°in a humidity chamber where the relative humidity (RH) was 30-90% and measured frequency 42 Hz - 1 MHz. With increase in film thickness the overall sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 μm), from 23.4 to 0.25 MΩ (48 μm) and from 6.8 to 0.02 MΩ (36 μm) at 25°C, while at 50°C the overall measured impedance was lower, and reduced from 14 MΩ to 0.72 MΩ (48 μm) for RH 30 and 90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for application in humidity sensing.",
publisher = "IEEE",
journal = "2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)",
title = "Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material",
pages = "1-3",
doi = "10.1109/FLEPS.2019.8792304"
}
Nikolić, M. V., Dojčinović, M., Vasiljević, Z. Ž., Luković, M. D.,& Labus, N. (2019). Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material.
2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
IEEE., 1-3.
https://doi.org/10.1109/FLEPS.2019.8792304
Nikolić MV, Dojčinović M, Vasiljević ZŽ, Luković MD, Labus N. Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material. 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). 2019;:1-3.
doi:10.1109/FLEPS.2019.8792304.
Nikolić Maria Vesna, Dojčinović Milena, Vasiljević Zorka Ž., Luković Miloljub D., Labus Nebojša, "Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material" 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) (2019):1-3,
https://doi.org/10.1109/FLEPS.2019.8792304 .

Humidity sensing potential of iron manganite (FeMNO3)

Nikolić, Maria Vesna; Luković, Miloljub D.; Vasiljević, Zorka Ž.; Dojčinović, Milena; Labus, Nebojša

(Budapest : [s. n.], 2019)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub D.
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Labus, Nebojša
PY  - 2019
AB  - Though different metal oxide systems have been investigated and applied in humidity sensing as resistive or capacitive ceramic humidity sensors new materials remain the subject of much research. Iron manganite (FeMnO3) has a bixybyite type structure with the cubic space group. Iron manganite powder was obtained by solid state synthesis (milling in a planetary ball mill, calcination at 1000°C for 2 hours, milling) of starting hematite (Fe2O3) and manganese carbonate (MnCO3) powders mixed in a suitable ratio. Bulk samples were obtained by sintering green samples of pressed powder 8 mm in diameter at 1000oC for 4 hours. Thick film paste was obtained by mixing the powder with organic vehicles. Four layers were screen printed on test interdigitated electrodes on alumina substrate and fired at 900oC for 6 h. XRD analysis of bulk and thick film samples confirmed the formation of iron manganite with a perovskite structure. Scanning electron microscopy (SEM) analysis of freshly cleaved bulk samples showed a network of interconnected grains and pores. A similar structure was observed for the thick film sample surface. Change of complex impedance was monitored in a humidity chamber in the relative humidity range 30-90% at the working temperature of 25°C and frequency range 42 Hz to 1 MHz. In bulk samples at 100 Hz the impedance decreased from 32 (RH 30%) to 3 MΩ (RH 90%), while in thick film samples on test interdigitated electrodes it decreased from 8.24 (RH 30%) to 0.87 MΩ ((RH 90%). The thick film sensor response and recovery was several seconds and a low hysteresis value of 2.78% was obtained showing that iron manganite can successfully be applied for humidity sensing applications.
PB  - Budapest : [s. n.]
C3  - Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest
T1  - Humidity sensing potential of iron manganite (FeMNO3)
SP  - 16
EP  - 17
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Luković, Miloljub D. and Vasiljević, Zorka Ž. and Dojčinović, Milena and Labus, Nebojša",
year = "2019",
abstract = "Though different metal oxide systems have been investigated and applied in humidity sensing as resistive or capacitive ceramic humidity sensors new materials remain the subject of much research. Iron manganite (FeMnO3) has a bixybyite type structure with the cubic space group. Iron manganite powder was obtained by solid state synthesis (milling in a planetary ball mill, calcination at 1000°C for 2 hours, milling) of starting hematite (Fe2O3) and manganese carbonate (MnCO3) powders mixed in a suitable ratio. Bulk samples were obtained by sintering green samples of pressed powder 8 mm in diameter at 1000oC for 4 hours. Thick film paste was obtained by mixing the powder with organic vehicles. Four layers were screen printed on test interdigitated electrodes on alumina substrate and fired at 900oC for 6 h. XRD analysis of bulk and thick film samples confirmed the formation of iron manganite with a perovskite structure. Scanning electron microscopy (SEM) analysis of freshly cleaved bulk samples showed a network of interconnected grains and pores. A similar structure was observed for the thick film sample surface. Change of complex impedance was monitored in a humidity chamber in the relative humidity range 30-90% at the working temperature of 25°C and frequency range 42 Hz to 1 MHz. In bulk samples at 100 Hz the impedance decreased from 32 (RH 30%) to 3 MΩ (RH 90%), while in thick film samples on test interdigitated electrodes it decreased from 8.24 (RH 30%) to 0.87 MΩ ((RH 90%). The thick film sensor response and recovery was several seconds and a low hysteresis value of 2.78% was obtained showing that iron manganite can successfully be applied for humidity sensing applications.",
publisher = "Budapest : [s. n.]",
journal = "Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest",
title = "Humidity sensing potential of iron manganite (FeMNO3)",
pages = "16-17"
}
Nikolić, M. V., Luković, M. D., Vasiljević, Z. Ž., Dojčinović, M.,& Labus, N. (2019). Humidity sensing potential of iron manganite (FeMNO3).
Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest
Budapest : [s. n.]., 16-17.
Nikolić MV, Luković MD, Vasiljević ZŽ, Dojčinović M, Labus N. Humidity sensing potential of iron manganite (FeMNO3). Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest. 2019;:16-17.
Nikolić Maria Vesna, Luković Miloljub D., Vasiljević Zorka Ž., Dojčinović Milena, Labus Nebojša, "Humidity sensing potential of iron manganite (FeMNO3)" Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest (2019):16-17

Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering

Labus, Nebojša; Rosić, Milena; Čebela, Maria; Jordanov, Dragana; Dodevski, Dragan; Radović, Ivana

(Belgrade : Institute for Multidisciplinary Research, 2019)

TY  - CONF
AU  - Labus, Nebojša
AU  - Rosić, Milena
AU  - Čebela, Maria
AU  - Jordanov, Dragana
AU  - Dodevski, Dragan
AU  - Radović, Ivana
PY  - 2019
AB  - In this study we have combined two research methods: structure prediction of ZnTiO3 using computational SPuDS software, and the characterization of binary oxides obtained from ZnO TiO2 system. Pure nanosized ZnTiO3 (99.5%), was compacted in cylindrical shape specimens by uniaxial double sided compaction and then sintered in air atmosphere in a dilatometric device [1,2]. One compact was sintered up to 915 °C to retain metastabile ZnTiO3 and held 5 minutes on that temperature, and another one at the same conditions, but now up to 970 °C to induce phase transition and to obtain stabile Zn2TiO4 and TiO2 according to phase diagram [2]. Reheated samples obtained at different characteristic temperatures in air were analyzed by X-ray diffraction (XRD). The infrared attenuated total reflectivity measurements confirmed XRD results. In order to estimate theoretical stability of these perovskite structure, Goldschmidt tolerance factor Gt and global instability index GII were calculated. Furthermore, the Ti valence states were determined by bond valence calculations (BVC). Also, we have investigated the formation of new phases (Zn2Ti3O8, TiO2 and Zn2TiO4) originating from ZnTiO3 with temperature change, as well as the relation between the crystal structures which have been predicted and the structure of the phases we have experimentally observed.
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
T1  - Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering
SP  - 110
EP  - 110
ER  - 
@conference{
author = "Labus, Nebojša and Rosić, Milena and Čebela, Maria and Jordanov, Dragana and Dodevski, Dragan and Radović, Ivana",
year = "2019",
abstract = "In this study we have combined two research methods: structure prediction of ZnTiO3 using computational SPuDS software, and the characterization of binary oxides obtained from ZnO TiO2 system. Pure nanosized ZnTiO3 (99.5%), was compacted in cylindrical shape specimens by uniaxial double sided compaction and then sintered in air atmosphere in a dilatometric device [1,2]. One compact was sintered up to 915 °C to retain metastabile ZnTiO3 and held 5 minutes on that temperature, and another one at the same conditions, but now up to 970 °C to induce phase transition and to obtain stabile Zn2TiO4 and TiO2 according to phase diagram [2]. Reheated samples obtained at different characteristic temperatures in air were analyzed by X-ray diffraction (XRD). The infrared attenuated total reflectivity measurements confirmed XRD results. In order to estimate theoretical stability of these perovskite structure, Goldschmidt tolerance factor Gt and global instability index GII were calculated. Furthermore, the Ti valence states were determined by bond valence calculations (BVC). Also, we have investigated the formation of new phases (Zn2Ti3O8, TiO2 and Zn2TiO4) originating from ZnTiO3 with temperature change, as well as the relation between the crystal structures which have been predicted and the structure of the phases we have experimentally observed.",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia",
title = "Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering",
pages = "110-110"
}
Labus, N., Rosić, M., Čebela, M., Jordanov, D., Dodevski, D.,& Radović, I. (2019). Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering.
Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 110-110.
Labus N, Rosić M, Čebela M, Jordanov D, Dodevski D, Radović I. Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering. Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;:110-110.
Labus Nebojša, Rosić Milena, Čebela Maria, Jordanov Dragana, Dodevski Dragan, Radović Ivana, "Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering" Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019):110-110

Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders

Kosanović, Darko; Blagojević, Vladimir A.; Labus, Nebojša; Tadić, Nenad B.; Pavlović, Vladimir B.; Ristić, Momčilo M.

(Belgrade : ETRAN, 2018)

TY  - JOUR
AU  - Kosanović, Darko
AU  - Blagojević, Vladimir A.
AU  - Labus, Nebojša
AU  - Tadić, Nenad B.
AU  - Pavlović, Vladimir B.
AU  - Ristić, Momčilo M.
PY  - 2018
AB  - Barium strontium titanate powders with different Ba:Sr ratios were investigated to determine the influence of the initial composition of powder mixture on microstructural properties and sintering kinetics. It was determined that BaCO3 and SrCO3 react differently to mixing, resulting in Ba0.5Sr0.5CO3 in the sample with 80% Ba and different contents of Ba1-xSrxTiO3 in samples with 50% and 20% Ba. In addition, the morphology is also different, with higher Sr content leading to larger particles size and less agglomeration. The different chemical content of the initial powder mixture also has a marked impact on the sintering process: the onset of sintering shifts towards higher temperature with higher Sr content, while the average apparent activation energy of sintering is the highest for the sample with 80% Ba and the lowest for the mixture with 50% Ba. In addition, hexagonal-to-cubic phase transformation was observed in parallel with the sintering process, where the position of the phase transition shifts to lower temperatures with an increase in Sr content. This is consistent with the behavior of low-temperature phase transitions of BST. The phase transition was not observed in sintered samples, suggesting that there is a size-dependence of the phase transition temperature. © 2016 Authors.
PB  - Belgrade : ETRAN
T2  - Science of Sintering
T1  - Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders
SP  - 29
EP  - 38
VL  - 50
IS  - 1
DO  - 10.2298/SOS1801029K
ER  - 
@article{
author = "Kosanović, Darko and Blagojević, Vladimir A. and Labus, Nebojša and Tadić, Nenad B. and Pavlović, Vladimir B. and Ristić, Momčilo M.",
year = "2018",
abstract = "Barium strontium titanate powders with different Ba:Sr ratios were investigated to determine the influence of the initial composition of powder mixture on microstructural properties and sintering kinetics. It was determined that BaCO3 and SrCO3 react differently to mixing, resulting in Ba0.5Sr0.5CO3 in the sample with 80% Ba and different contents of Ba1-xSrxTiO3 in samples with 50% and 20% Ba. In addition, the morphology is also different, with higher Sr content leading to larger particles size and less agglomeration. The different chemical content of the initial powder mixture also has a marked impact on the sintering process: the onset of sintering shifts towards higher temperature with higher Sr content, while the average apparent activation energy of sintering is the highest for the sample with 80% Ba and the lowest for the mixture with 50% Ba. In addition, hexagonal-to-cubic phase transformation was observed in parallel with the sintering process, where the position of the phase transition shifts to lower temperatures with an increase in Sr content. This is consistent with the behavior of low-temperature phase transitions of BST. The phase transition was not observed in sintered samples, suggesting that there is a size-dependence of the phase transition temperature. © 2016 Authors.",
publisher = "Belgrade : ETRAN",
journal = "Science of Sintering",
title = "Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders",
pages = "29-38",
volume = "50",
number = "1",
doi = "10.2298/SOS1801029K"
}
Kosanović, D., Blagojević, V. A., Labus, N., Tadić, N. B., Pavlović, V. B.,& Ristić, M. M. (2018). Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders.
Science of Sintering
Belgrade : ETRAN., 50(1), 29-38.
https://doi.org/10.2298/SOS1801029K
Kosanović D, Blagojević VA, Labus N, Tadić NB, Pavlović VB, Ristić MM. Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders. Science of Sintering. 2018;50(1):29-38.
doi:10.2298/SOS1801029K.
Kosanović Darko, Blagojević Vladimir A., Labus Nebojša, Tadić Nenad B., Pavlović Vladimir B., Ristić Momčilo M., "Effect of chemical composition on microstructural properties and sintering kinetics of (Ba,Sr)TiO3 powders" Science of Sintering, 50, no. 1 (2018):29-38,
https://doi.org/10.2298/SOS1801029K .
1
7
7

Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction

Labus, Nebojša; Marković, Smilja; Nikolić, Maria Vesna; Krstić, Jugoslav; Pavlović, Vladimir B.

(2018)

TY  - CONF
AU  - Labus, Nebojša
AU  - Marković, Smilja
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Pavlović, Vladimir B.
PY  - 2018
T1  - Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction
ER  - 
@conference{
author = "Labus, Nebojša and Marković, Smilja and Nikolić, Maria Vesna and Krstić, Jugoslav and Pavlović, Vladimir B.",
year = "2018",
title = "Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction"
}
Labus, N., Marković, S., Nikolić, M. V., Krstić, J.,& Pavlović, V. B. (2018). Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction.
.
Labus N, Marković S, Nikolić MV, Krstić J, Pavlović VB. Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction. 2018;.
Labus Nebojša, Marković Smilja, Nikolić Maria Vesna, Krstić Jugoslav, Pavlović Vladimir B., "Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction" (2018)

Humidity sensing potential of Fe2TiO5—pseudobrookite

Nikolić, Maria Vesna; Luković, Miloljub D.; Vasiljević, Zorka Ž.; Labus, Nebojša; Aleksić, Obrad S.

(Springer US, 2018)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub D.
AU  - Vasiljević, Zorka Ž.
AU  - Labus, Nebojša
AU  - Aleksić, Obrad S.
PY  - 2018
AB  - Bulk samples of pseudobrookite with an orthorhombic crystal structure were prepared by sintering a mixture of starting hematite and anatase nano powders in the weight ratio 60:40 at three different sintering temperatures (950, 1050 and 1150 °C) resulting in different microstructures determined by SEM analysis. Humidity sensing properties of pseudobrookite were investigated by measuring changes in electrical properties at operating temperatures of 20, 40 and 60 °C in the frequency range 100 Hz–100 kHz in the relative humidity range 30–90% in a climatic chamber. At 100 Hz, and 20 °C the impedance of pseudobrookite sintered at 1150 °C reduced over 5 times in the humidity range 40–90%, and 7 times at 60 °C for pseudobrookite sintered at 950 °C. Detailed analysis of dielectric properties showed that the dielectric constant increased noticeably with increase in humidity at low frequencies. Electrical conductivity change with frequency followed the Jonscher power law, and increased with increase in relative humidity. The determined frequency constant reduced with increase in sample temperature and increase in relative humidity. The conduction mechanism can be explained using the correlated barrier hopping model. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Low hysteresis (3.6 and 2.99%) was obtained in the 40–90% humidity range at room temperature (25 °C) for pseudobrookite sintered at 950 and 1150 °C. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
PB  - Springer US
T2  - Journal of Materials Science: Materials in Electronics
T2  - Journal of Materials Science: Materials in Electronics
T1  - Humidity sensing potential of Fe2TiO5—pseudobrookite
SP  - 9227
EP  - 9238
VL  - 29
IS  - 11
DO  - 10.1007/s10854-018-8951-1
ER  - 
@article{
author = "Nikolić, Maria Vesna and Luković, Miloljub D. and Vasiljević, Zorka Ž. and Labus, Nebojša and Aleksić, Obrad S.",
year = "2018",
abstract = "Bulk samples of pseudobrookite with an orthorhombic crystal structure were prepared by sintering a mixture of starting hematite and anatase nano powders in the weight ratio 60:40 at three different sintering temperatures (950, 1050 and 1150 °C) resulting in different microstructures determined by SEM analysis. Humidity sensing properties of pseudobrookite were investigated by measuring changes in electrical properties at operating temperatures of 20, 40 and 60 °C in the frequency range 100 Hz–100 kHz in the relative humidity range 30–90% in a climatic chamber. At 100 Hz, and 20 °C the impedance of pseudobrookite sintered at 1150 °C reduced over 5 times in the humidity range 40–90%, and 7 times at 60 °C for pseudobrookite sintered at 950 °C. Detailed analysis of dielectric properties showed that the dielectric constant increased noticeably with increase in humidity at low frequencies. Electrical conductivity change with frequency followed the Jonscher power law, and increased with increase in relative humidity. The determined frequency constant reduced with increase in sample temperature and increase in relative humidity. The conduction mechanism can be explained using the correlated barrier hopping model. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Low hysteresis (3.6 and 2.99%) was obtained in the 40–90% humidity range at room temperature (25 °C) for pseudobrookite sintered at 950 and 1150 °C. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.",
publisher = "Springer US",
journal = "Journal of Materials Science: Materials in Electronics, Journal of Materials Science: Materials in Electronics",
title = "Humidity sensing potential of Fe2TiO5—pseudobrookite",
pages = "9227-9238",
volume = "29",
number = "11",
doi = "10.1007/s10854-018-8951-1"
}
Nikolić, M. V., Luković, M. D., Vasiljević, Z. Ž., Labus, N.,& Aleksić, O. S. (2018). Humidity sensing potential of Fe2TiO5—pseudobrookite.
Journal of Materials Science: Materials in Electronics
Springer US., 29(11), 9227-9238.
https://doi.org/10.1007/s10854-018-8951-1
Nikolić MV, Luković MD, Vasiljević ZŽ, Labus N, Aleksić OS. Humidity sensing potential of Fe2TiO5—pseudobrookite. Journal of Materials Science: Materials in Electronics. 2018;29(11):9227-9238.
doi:10.1007/s10854-018-8951-1.
Nikolić Maria Vesna, Luković Miloljub D., Vasiljević Zorka Ž., Labus Nebojša, Aleksić Obrad S., "Humidity sensing potential of Fe2TiO5—pseudobrookite" Journal of Materials Science: Materials in Electronics, 29, no. 11 (2018):9227-9238,
https://doi.org/10.1007/s10854-018-8951-1 .
9
8
10

Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction

Labus, Nebojša; Marković, Smilja; Nikolić, Maria Vesna; Krstić, Jugoslav; Pavlović, Vladimir B.

(Belgrade : Serbian Ceramic Society, 2018)

TY  - CONF
AU  - Labus, Nebojša
AU  - Marković, Smilja
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Pavlović, Vladimir B.
PY  - 2018
AB  - During the compaction of the powder mixture of ZnO and Mn2O3 (MnCO3) and Fe2O3 compacts were find fragile for further handling. Poly vinyl alcohol PVA was used as a binder in an unusual 20% PVA content. We made as well 2% PVA with 0.6% Poly ethylene glycol PEG and 20% PVA with 6 % PEG. Binder was wrapped over the powder by suspension forming in the polymer water solution and drying afterwards until all water content evaporates. On the these obtained powders employed characterization techniques were: Fourier transformed Infra red FTIR spectra with ATR attenuated total reflection technique as well as differential thermal analysis DTA on the device with low temperature sensitivity and TEM transmition electron microscopy. All binder concentrations gave compacts with good mechanical properties, that can be handled with ease but with adding, a PEG as plasticizer the operating of the anvil and piston were extremely difficult due to friction.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018
T1  - Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction
SP  - 83
EP  - 83
ER  - 
@conference{
author = "Labus, Nebojša and Marković, Smilja and Nikolić, Maria Vesna and Krstić, Jugoslav and Pavlović, Vladimir B.",
year = "2018",
abstract = "During the compaction of the powder mixture of ZnO and Mn2O3 (MnCO3) and Fe2O3 compacts were find fragile for further handling. Poly vinyl alcohol PVA was used as a binder in an unusual 20% PVA content. We made as well 2% PVA with 0.6% Poly ethylene glycol PEG and 20% PVA with 6 % PEG. Binder was wrapped over the powder by suspension forming in the polymer water solution and drying afterwards until all water content evaporates. On the these obtained powders employed characterization techniques were: Fourier transformed Infra red FTIR spectra with ATR attenuated total reflection technique as well as differential thermal analysis DTA on the device with low temperature sensitivity and TEM transmition electron microscopy. All binder concentrations gave compacts with good mechanical properties, that can be handled with ease but with adding, a PEG as plasticizer the operating of the anvil and piston were extremely difficult due to friction.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018",
title = "Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction",
pages = "83-83"
}
Labus, N., Marković, S., Nikolić, M. V., Krstić, J.,& Pavlović, V. B. (2018). Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction.
Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018
Belgrade : Serbian Ceramic Society., 83-83.
Labus N, Marković S, Nikolić MV, Krstić J, Pavlović VB. Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction. Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018. 2018;:83-83.
Labus Nebojša, Marković Smilja, Nikolić Maria Vesna, Krstić Jugoslav, Pavlović Vladimir B., "Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction" Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018 (2018):83-83

Humidity sensing potential of Fe2TiO5—pseudobrookite

Nikolić, Maria Vesna; Luković, Miloljub D.; Vasiljević, Zorka Ž.; Labus, Nebojša; Aleksić, Obrad S.

(Springer US, 2018)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub D.
AU  - Vasiljević, Zorka Ž.
AU  - Labus, Nebojša
AU  - Aleksić, Obrad S.
PY  - 2018
AB  - Bulk samples of pseudobrookite with an orthorhombic crystal structure were prepared by sintering a mixture of starting hematite and anatase nano powders in the weight ratio 60:40 at three different sintering temperatures (950, 1050 and 1150 °C) resulting in different microstructures determined by SEM analysis. Humidity sensing properties of pseudobrookite were investigated by measuring changes in electrical properties at operating temperatures of 20, 40 and 60 °C in the frequency range 100 Hz–100 kHz in the relative humidity range 30–90% in a climatic chamber. At 100 Hz, and 20 °C the impedance of pseudobrookite sintered at 1150 °C reduced over 5 times in the humidity range 40–90%, and 7 times at 60 °C for pseudobrookite sintered at 950 °C. Detailed analysis of dielectric properties showed that the dielectric constant increased noticeably with increase in humidity at low frequencies. Electrical conductivity change with frequency followed the Jonscher power law, and increased with increase in relative humidity. The determined frequency constant reduced with increase in sample temperature and increase in relative humidity. The conduction mechanism can be explained using the correlated barrier hopping model. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Low hysteresis (3.6 and 2.99%) was obtained in the 40–90% humidity range at room temperature (25 °C) for pseudobrookite sintered at 950 and 1150 °C. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
PB  - Springer US
T2  - Journal of Materials Science: Materials in Electronics
T1  - Humidity sensing potential of Fe2TiO5—pseudobrookite
SP  - 9227
EP  - 9238
VL  - 29
IS  - 11
DO  - 10.1007/s10854-018-8951-1
ER  - 
@article{
author = "Nikolić, Maria Vesna and Luković, Miloljub D. and Vasiljević, Zorka Ž. and Labus, Nebojša and Aleksić, Obrad S.",
year = "2018",
abstract = "Bulk samples of pseudobrookite with an orthorhombic crystal structure were prepared by sintering a mixture of starting hematite and anatase nano powders in the weight ratio 60:40 at three different sintering temperatures (950, 1050 and 1150 °C) resulting in different microstructures determined by SEM analysis. Humidity sensing properties of pseudobrookite were investigated by measuring changes in electrical properties at operating temperatures of 20, 40 and 60 °C in the frequency range 100 Hz–100 kHz in the relative humidity range 30–90% in a climatic chamber. At 100 Hz, and 20 °C the impedance of pseudobrookite sintered at 1150 °C reduced over 5 times in the humidity range 40–90%, and 7 times at 60 °C for pseudobrookite sintered at 950 °C. Detailed analysis of dielectric properties showed that the dielectric constant increased noticeably with increase in humidity at low frequencies. Electrical conductivity change with frequency followed the Jonscher power law, and increased with increase in relative humidity. The determined frequency constant reduced with increase in sample temperature and increase in relative humidity. The conduction mechanism can be explained using the correlated barrier hopping model. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Low hysteresis (3.6 and 2.99%) was obtained in the 40–90% humidity range at room temperature (25 °C) for pseudobrookite sintered at 950 and 1150 °C. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.",
publisher = "Springer US",
journal = "Journal of Materials Science: Materials in Electronics",
title = "Humidity sensing potential of Fe2TiO5—pseudobrookite",
pages = "9227-9238",
volume = "29",
number = "11",
doi = "10.1007/s10854-018-8951-1"
}
Nikolić, M. V., Luković, M. D., Vasiljević, Z. Ž., Labus, N.,& Aleksić, O. S. (2018). Humidity sensing potential of Fe2TiO5—pseudobrookite.
Journal of Materials Science: Materials in Electronics
Springer US., 29(11), 9227-9238.
https://doi.org/10.1007/s10854-018-8951-1
Nikolić MV, Luković MD, Vasiljević ZŽ, Labus N, Aleksić OS. Humidity sensing potential of Fe2TiO5—pseudobrookite. Journal of Materials Science: Materials in Electronics. 2018;29(11):9227-9238.
doi:10.1007/s10854-018-8951-1.
Nikolić Maria Vesna, Luković Miloljub D., Vasiljević Zorka Ž., Labus Nebojša, Aleksić Obrad S., "Humidity sensing potential of Fe2TiO5—pseudobrookite" Journal of Materials Science: Materials in Electronics, 29, no. 11 (2018):9227-9238,
https://doi.org/10.1007/s10854-018-8951-1 .
9
8
10

Non-isothermal crystallization of lithium germanophosphate glass studied by different kinetic methods

Matijašević, Srđan D.; Grujić, Snežana R.; Topalović, Vladimir S.; Nikolić, Jelena D.; Smiljanić, Sonja V.; Labus, Nebojša; Savić, Veljko V.

(Belgrade : International Institute for the Science of Sintering, 2018)

TY  - JOUR
AU  - Matijašević, Srđan D.
AU  - Grujić, Snežana R.
AU  - Topalović, Vladimir S.
AU  - Nikolić, Jelena D.
AU  - Smiljanić, Sonja V.
AU  - Labus, Nebojša
AU  - Savić, Veljko V.
PY  - 2018
AB  - Crystallization kinetics of 22.5Li2O•10Al2O3 •30GeO2•37.5P2 O5 (mol%) glass was studied under non-isothermal condition using the differential thermal analysis (DTA). The study was performed by using the first crystallization peak temperature (Tp1) which belongs to the precipitation of LiGe2 (PO4)3 phase in the glass. The activation energy of glass crystallization (Ea) was determined using different isokinetic methods. The dependence of Ea on the degree of glass-crystal transformation (α) was studied using model-free isoconversional linear integral KAS (Kissinger–Akahira–Sunose) and FWO (Flynn–Wall– Ozawa) methods. It was shown that the Ea varies with α and hence with temperature and consequently the glass/crystal transformation can be described as a complex process involving different mechanisms of nucleation and growth. © 2016 Authors. Published by the International Institute for the Science of Sintering.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Non-isothermal crystallization of lithium germanophosphate glass studied by different kinetic methods
SP  - 193
EP  - 203
VL  - 50
IS  - 2
DO  - 10.2298/SOS1802193M
ER  - 
@article{
author = "Matijašević, Srđan D. and Grujić, Snežana R. and Topalović, Vladimir S. and Nikolić, Jelena D. and Smiljanić, Sonja V. and Labus, Nebojša and Savić, Veljko V.",
year = "2018",
abstract = "Crystallization kinetics of 22.5Li2O•10Al2O3 •30GeO2•37.5P2 O5 (mol%) glass was studied under non-isothermal condition using the differential thermal analysis (DTA). The study was performed by using the first crystallization peak temperature (Tp1) which belongs to the precipitation of LiGe2 (PO4)3 phase in the glass. The activation energy of glass crystallization (Ea) was determined using different isokinetic methods. The dependence of Ea on the degree of glass-crystal transformation (α) was studied using model-free isoconversional linear integral KAS (Kissinger–Akahira–Sunose) and FWO (Flynn–Wall– Ozawa) methods. It was shown that the Ea varies with α and hence with temperature and consequently the glass/crystal transformation can be described as a complex process involving different mechanisms of nucleation and growth. © 2016 Authors. Published by the International Institute for the Science of Sintering.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Non-isothermal crystallization of lithium germanophosphate glass studied by different kinetic methods",
pages = "193-203",
volume = "50",
number = "2",
doi = "10.2298/SOS1802193M"
}
Matijašević, S. D., Grujić, S. R., Topalović, V. S., Nikolić, J. D., Smiljanić, S. V., Labus, N.,& Savić, V. V. (2018). Non-isothermal crystallization of lithium germanophosphate glass studied by different kinetic methods.
Science of Sintering
Belgrade : International Institute for the Science of Sintering., 50(2), 193-203.
https://doi.org/10.2298/SOS1802193M
Matijašević SD, Grujić SR, Topalović VS, Nikolić JD, Smiljanić SV, Labus N, Savić VV. Non-isothermal crystallization of lithium germanophosphate glass studied by different kinetic methods. Science of Sintering. 2018;50(2):193-203.
doi:10.2298/SOS1802193M.
Matijašević Srđan D., Grujić Snežana R., Topalović Vladimir S., Nikolić Jelena D., Smiljanić Sonja V., Labus Nebojša, Savić Veljko V., "Non-isothermal crystallization of lithium germanophosphate glass studied by different kinetic methods" Science of Sintering, 50, no. 2 (2018):193-203,
https://doi.org/10.2298/SOS1802193M .
1
1
1

Two step sintering of ZnTiO3 nanopowder

Labus, Nebojša; Vasiljević, Zorka Ž.; Vasiljević Radović, Dana; Rakić, Srđan; Nikolić, Maria Vesna

(Belgrade : International Institute for the Science of Sintering, 2017)

TY  - JOUR
AU  - Labus, Nebojša
AU  - Vasiljević, Zorka Ž.
AU  - Vasiljević Radović, Dana
AU  - Rakić, Srđan
AU  - Nikolić, Maria Vesna
PY  - 2017
AB  - Metastable nanopowder ZnTiO3 was pressed into cylindrical compacts at 200 MPa. Compacts were treated by conventional heating with isothermal holding at 931°C for 10 minutes, 25 minutes and 40 minutes. ZnTiO3 compacts were also heated with a two-step sintering schedule with maximal 913°C and isothermal holding at 896°C, for approximately the same holding times as the isothermal schedule. Shrinkage during heating was monitored with a dilatometric device, while microstructure was determined with atomic force microscopy. XRD patterns were collected for the most interesting samples. Microstructures of sintered specimens showed differences introduced during the last sintering stage by the two different heating schedules. Goal of the presented work was to discuss the possible sintering mechanisms for the two step sintering schedulle according to the presented results
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Two step sintering of ZnTiO3 nanopowder
SP  - 51
EP  - 60
VL  - 49
IS  - 1
DO  - 10.2298/SOS1701051L
ER  - 
@article{
author = "Labus, Nebojša and Vasiljević, Zorka Ž. and Vasiljević Radović, Dana and Rakić, Srđan and Nikolić, Maria Vesna",
year = "2017",
abstract = "Metastable nanopowder ZnTiO3 was pressed into cylindrical compacts at 200 MPa. Compacts were treated by conventional heating with isothermal holding at 931°C for 10 minutes, 25 minutes and 40 minutes. ZnTiO3 compacts were also heated with a two-step sintering schedule with maximal 913°C and isothermal holding at 896°C, for approximately the same holding times as the isothermal schedule. Shrinkage during heating was monitored with a dilatometric device, while microstructure was determined with atomic force microscopy. XRD patterns were collected for the most interesting samples. Microstructures of sintered specimens showed differences introduced during the last sintering stage by the two different heating schedules. Goal of the presented work was to discuss the possible sintering mechanisms for the two step sintering schedulle according to the presented results",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Two step sintering of ZnTiO3 nanopowder",
pages = "51-60",
volume = "49",
number = "1",
doi = "10.2298/SOS1701051L"
}
Labus, N., Vasiljević, Z. Ž., Vasiljević Radović, D., Rakić, S.,& Nikolić, M. V. (2017). Two step sintering of ZnTiO3 nanopowder.
Science of Sintering
Belgrade : International Institute for the Science of Sintering., 49(1), 51-60.
https://doi.org/10.2298/SOS1701051L
Labus N, Vasiljević ZŽ, Vasiljević Radović D, Rakić S, Nikolić MV. Two step sintering of ZnTiO3 nanopowder. Science of Sintering. 2017;49(1):51-60.
doi:10.2298/SOS1701051L.
Labus Nebojša, Vasiljević Zorka Ž., Vasiljević Radović Dana, Rakić Srđan, Nikolić Maria Vesna, "Two step sintering of ZnTiO3 nanopowder" Science of Sintering, 49, no. 1 (2017):51-60,
https://doi.org/10.2298/SOS1701051L .
1
3
3

Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment

Labus, Nebojša; Vasiljević, Zorka Ž.; Aleksić, Obrad S.; Luković, Miloljub D.; Marković, Smilja; Pavlović, Vladimir B.; Mentus, Slavko; Nikolić, Maria Vesna

(2017)

TY  - JOUR
AU  - Labus, Nebojša
AU  - Vasiljević, Zorka Ž.
AU  - Aleksić, Obrad S.
AU  - Luković, Miloljub D.
AU  - Marković, Smilja
AU  - Pavlović, Vladimir B.
AU  - Mentus, Slavko
AU  - Nikolić, Maria Vesna
PY  - 2017
AB  - Commercial Mn-Zn powder (Mn0.63Zn0.37Fe2O4, 93 wt. % and Fe2O3 7 wt. %) was milled 0.5, 1, 2 and 4 hours in a planetary ball mill. The goal was to observe intensive milling influences on oxidation and reduction processes that will happen during subsequent heating. Powders were characterized with XRD, SEM and particle seizer. Subsequent heating was monitored on TGA/DTA in an air atmosphere. After compaction of the milled powders, sintering was also performed in a dilatometric device. Sintered specimens were characterized micro structurally with SEM on a fresh breakage. Obtained differential TGA diagrams suggest intensive changes during prolonged milling of the oxidation kinetics on heating. Ferrite powders changed with milling as well as with second run heating were characterized to enable determination of the potentially best ratio of milling and heating to be applied to obtain the desired microstructure.
T2  - Science of Sintering
T1  - Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment
SP  - 455
EP  - 467
VL  - 49
IS  - 4
DO  - 10.2298/SOS1704455L
ER  - 
@article{
author = "Labus, Nebojša and Vasiljević, Zorka Ž. and Aleksić, Obrad S. and Luković, Miloljub D. and Marković, Smilja and Pavlović, Vladimir B. and Mentus, Slavko and Nikolić, Maria Vesna",
year = "2017",
abstract = "Commercial Mn-Zn powder (Mn0.63Zn0.37Fe2O4, 93 wt. % and Fe2O3 7 wt. %) was milled 0.5, 1, 2 and 4 hours in a planetary ball mill. The goal was to observe intensive milling influences on oxidation and reduction processes that will happen during subsequent heating. Powders were characterized with XRD, SEM and particle seizer. Subsequent heating was monitored on TGA/DTA in an air atmosphere. After compaction of the milled powders, sintering was also performed in a dilatometric device. Sintered specimens were characterized micro structurally with SEM on a fresh breakage. Obtained differential TGA diagrams suggest intensive changes during prolonged milling of the oxidation kinetics on heating. Ferrite powders changed with milling as well as with second run heating were characterized to enable determination of the potentially best ratio of milling and heating to be applied to obtain the desired microstructure.",
journal = "Science of Sintering",
title = "Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment",
pages = "455-467",
volume = "49",
number = "4",
doi = "10.2298/SOS1704455L"
}
Labus, N., Vasiljević, Z. Ž., Aleksić, O. S., Luković, M. D., Marković, S., Pavlović, V. B., Mentus, S.,& Nikolić, M. V. (2017). Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment.
Science of Sintering, 49(4), 455-467.
https://doi.org/10.2298/SOS1704455L
Labus N, Vasiljević ZŽ, Aleksić OS, Luković MD, Marković S, Pavlović VB, Mentus S, Nikolić MV. Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment. Science of Sintering. 2017;49(4):455-467.
doi:10.2298/SOS1704455L.
Labus Nebojša, Vasiljević Zorka Ž., Aleksić Obrad S., Luković Miloljub D., Marković Smilja, Pavlović Vladimir B., Mentus Slavko, Nikolić Maria Vesna, "Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment" Science of Sintering, 49, no. 4 (2017):455-467,
https://doi.org/10.2298/SOS1704455L .
1
4
4

Influence of starting powder milling on magnetic properties of Mn-Zn ferrite

Milutinov, Miodrag M.; Nikolić, Maria Vesna; Luković, Snežana G.; Blaž, Nelu; Labus, Nebojša; Aleksić, Obrad S.; Živanov, Ljiljana D.

(Novi Sad : Faculty of Technology, University of Novi Sad, 2017)

TY  - JOUR
AU  - Milutinov, Miodrag M.
AU  - Nikolić, Maria Vesna
AU  - Luković, Snežana G.
AU  - Blaž, Nelu
AU  - Labus, Nebojša
AU  - Aleksić, Obrad S.
AU  - Živanov, Ljiljana D.
PY  - 2017
AB  - In this paper, the influence of additional sieving and milling of starting industrial Mn-Zn powders on magnetic properties was investigated. The starting powder was milled for 60 minutes, followed by sieving through 325 and 400 meshes. The starting and milled powders were used to fabricate toroid shaped samples sintered at 1200°C for 2 hours. Structural parameters of the fabricated samples were analysed by X-ray diffraction and scanning electron microscopy. Complex permeability, core loss density, and hysteresis were measured using the modified watt-meter method. The complex permeability and hysteresis loop were modelled with a new model proposed in the paper. The core loss density was modelled with the Steinmetz empirical equation. The experimental results and calculations show the significance of the additional milling and sieving process on magnetic properties of Mn-Zn ferrite in the frequency range 0.1-10MHz. These processes increase the relative permeability about 3 times and decrease the core loss 4 times by milling of the starting powder.
PB  - Novi Sad : Faculty of Technology, University of Novi Sad
T2  - Processing and Application of Ceramics
T1  - Influence of starting powder milling on magnetic properties of Mn-Zn ferrite
SP  - 160
EP  - 169
VL  - 11
IS  - 2
DO  - 10.2298/PAC1702160M
ER  - 
@article{
author = "Milutinov, Miodrag M. and Nikolić, Maria Vesna and Luković, Snežana G. and Blaž, Nelu and Labus, Nebojša and Aleksić, Obrad S. and Živanov, Ljiljana D.",
year = "2017",
abstract = "In this paper, the influence of additional sieving and milling of starting industrial Mn-Zn powders on magnetic properties was investigated. The starting powder was milled for 60 minutes, followed by sieving through 325 and 400 meshes. The starting and milled powders were used to fabricate toroid shaped samples sintered at 1200°C for 2 hours. Structural parameters of the fabricated samples were analysed by X-ray diffraction and scanning electron microscopy. Complex permeability, core loss density, and hysteresis were measured using the modified watt-meter method. The complex permeability and hysteresis loop were modelled with a new model proposed in the paper. The core loss density was modelled with the Steinmetz empirical equation. The experimental results and calculations show the significance of the additional milling and sieving process on magnetic properties of Mn-Zn ferrite in the frequency range 0.1-10MHz. These processes increase the relative permeability about 3 times and decrease the core loss 4 times by milling of the starting powder.",
publisher = "Novi Sad : Faculty of Technology, University of Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Influence of starting powder milling on magnetic properties of Mn-Zn ferrite",
pages = "160-169",
volume = "11",
number = "2",
doi = "10.2298/PAC1702160M"
}
Milutinov, M. M., Nikolić, M. V., Luković, S. G., Blaž, N., Labus, N., Aleksić, O. S.,& Živanov, L. D. (2017). Influence of starting powder milling on magnetic properties of Mn-Zn ferrite.
Processing and Application of Ceramics
Novi Sad : Faculty of Technology, University of Novi Sad., 11(2), 160-169.
https://doi.org/10.2298/PAC1702160M
Milutinov MM, Nikolić MV, Luković SG, Blaž N, Labus N, Aleksić OS, Živanov LD. Influence of starting powder milling on magnetic properties of Mn-Zn ferrite. Processing and Application of Ceramics. 2017;11(2):160-169.
doi:10.2298/PAC1702160M.
Milutinov Miodrag M., Nikolić Maria Vesna, Luković Snežana G., Blaž Nelu, Labus Nebojša, Aleksić Obrad S., Živanov Ljiljana D., "Influence of starting powder milling on magnetic properties of Mn-Zn ferrite" Processing and Application of Ceramics, 11, no. 2 (2017):160-169,
https://doi.org/10.2298/PAC1702160M .
1
1
1

Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior

Aleksić, Obrad S.; Vasiljević, Zorka Ž.; Vujković, Milica; Nikolić, Marko G.; Labus, Nebojša; Luković, Miloljub D.; Nikolić, Maria Vesna

(Springer US, 2017)

TY  - JOUR
AU  - Aleksić, Obrad S.
AU  - Vasiljević, Zorka Ž.
AU  - Vujković, Milica
AU  - Nikolić, Marko G.
AU  - Labus, Nebojša
AU  - Luković, Miloljub D.
AU  - Nikolić, Maria Vesna
PY  - 2017
AB  - Nanostructured Fe2TiO5 thick films were deposited on fluorine-doped tin oxide glass substrate using screen printing technology. Starting hematite and anatase nanopowders were mixed in molar ratios 1:1 and 1:1.5 and calcined in air at 900°C for 2 h to form pseudobrookite, Fe2TiO5. Functional powders and sintered thick films were analyzed by X-ray diffraction, scanning electron microscopy, energy-dispersive spectroscopy and transmission electron microscopy. UV–Vis analysis enabled determination of the band gap. Separation and transfer efficiency of photogenerated charge carriers was confirmed by the photoluminescence and electrochemical impedance spectra. Even though a slightly high onset oxygen evolution potential of photoexcited film electrode samples in NaOH was obtained, photocurrent densities were high, especially in the presence of H2O2 (~12 mA cm−2 at 1.7 V RHE). This work shows promise for practical application due to favorable band positions of pseudobrookite and low-cost screen printing technology.
PB  - Springer US
T2  - Journal of Materials Science
T1  - Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior
SP  - 5938
EP  - 5953
VL  - 52
IS  - 10
DO  - 10.1007/s10853-017-0830-2
ER  - 
@article{
author = "Aleksić, Obrad S. and Vasiljević, Zorka Ž. and Vujković, Milica and Nikolić, Marko G. and Labus, Nebojša and Luković, Miloljub D. and Nikolić, Maria Vesna",
year = "2017",
abstract = "Nanostructured Fe2TiO5 thick films were deposited on fluorine-doped tin oxide glass substrate using screen printing technology. Starting hematite and anatase nanopowders were mixed in molar ratios 1:1 and 1:1.5 and calcined in air at 900°C for 2 h to form pseudobrookite, Fe2TiO5. Functional powders and sintered thick films were analyzed by X-ray diffraction, scanning electron microscopy, energy-dispersive spectroscopy and transmission electron microscopy. UV–Vis analysis enabled determination of the band gap. Separation and transfer efficiency of photogenerated charge carriers was confirmed by the photoluminescence and electrochemical impedance spectra. Even though a slightly high onset oxygen evolution potential of photoexcited film electrode samples in NaOH was obtained, photocurrent densities were high, especially in the presence of H2O2 (~12 mA cm−2 at 1.7 V RHE). This work shows promise for practical application due to favorable band positions of pseudobrookite and low-cost screen printing technology.",
publisher = "Springer US",
journal = "Journal of Materials Science",
title = "Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior",
pages = "5938-5953",
volume = "52",
number = "10",
doi = "10.1007/s10853-017-0830-2"
}
Aleksić, O. S., Vasiljević, Z. Ž., Vujković, M., Nikolić, M. G., Labus, N., Luković, M. D.,& Nikolić, M. V. (2017). Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior.
Journal of Materials Science
Springer US., 52(10), 5938-5953.
https://doi.org/10.1007/s10853-017-0830-2
Aleksić OS, Vasiljević ZŽ, Vujković M, Nikolić MG, Labus N, Luković MD, Nikolić MV. Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior. Journal of Materials Science. 2017;52(10):5938-5953.
doi:10.1007/s10853-017-0830-2.
Aleksić Obrad S., Vasiljević Zorka Ž., Vujković Milica, Nikolić Marko G., Labus Nebojša, Luković Miloljub D., Nikolić Maria Vesna, "Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior" Journal of Materials Science, 52, no. 10 (2017):5938-5953,
https://doi.org/10.1007/s10853-017-0830-2 .
3
3
3

Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite

Luković, Miloljub D.; Nikolić, Maria Vesna; Balaz, Nelu; Milutinov, Miodrag; Vasiljević, Zorka Ž.; Labus, Nebojša; Aleksić, Obrad S.

(Belgrade : Institute for Multidisciplinary Research of the University of Belgrade, 2017)

TY  - CONF
AU  - Luković, Miloljub D.
AU  - Nikolić, Maria Vesna
AU  - Balaz, Nelu
AU  - Milutinov, Miodrag
AU  - Vasiljević, Zorka Ž.
AU  - Labus, Nebojša
AU  - Aleksić, Obrad S.
PY  - 2017
AB  - Starting hematite (Fe2O3), zinc oxide (ZnO) and manganese carbonate (MnCO3) powders were homogenized in a planetary ball mill in stainless steel bowls with stainless steel balls for 15 min, calcined in air at 1000 C for 2 h, milled in a planetary ball mill for 30 minutes, followed by 4 h in an aghate mill, sieved through a 325 mesh to form four starting powders: MnFe2O4, ZnFe2O4, Mn0.5Zn0.5Fe2O4 and a two-phase mixture of zinc and manganese ferrite. Structural properties of the obtained powders were analyzed using XRD, SEM and EDS. Electrical properties of disk shaped samples were measured at room temperature on an impedance analyzer in the frequency range 100 to 40 MHz, enabling determination and comparison of dielectric permittivity and complex impedance. Complex relative permeability of toroid shaped samples was measured on an impedance analyzer in the frequency range from 1 MHz to 500 MHz.
PB  - Belgrade : Institute for Multidisciplinary Research of the University of Belgrade
C3  - Programme and the Book of Abstracts / 4th Conference of The Serbian Society for Ceramic Materials, 4CSCS-2017, June 14-16, 2017, Belgrade, Serbia
T1  - Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite
SP  - 102
EP  - 102
ER  - 
@conference{
author = "Luković, Miloljub D. and Nikolić, Maria Vesna and Balaz, Nelu and Milutinov, Miodrag and Vasiljević, Zorka Ž. and Labus, Nebojša and Aleksić, Obrad S.",
year = "2017",
abstract = "Starting hematite (Fe2O3), zinc oxide (ZnO) and manganese carbonate (MnCO3) powders were homogenized in a planetary ball mill in stainless steel bowls with stainless steel balls for 15 min, calcined in air at 1000 C for 2 h, milled in a planetary ball mill for 30 minutes, followed by 4 h in an aghate mill, sieved through a 325 mesh to form four starting powders: MnFe2O4, ZnFe2O4, Mn0.5Zn0.5Fe2O4 and a two-phase mixture of zinc and manganese ferrite. Structural properties of the obtained powders were analyzed using XRD, SEM and EDS. Electrical properties of disk shaped samples were measured at room temperature on an impedance analyzer in the frequency range 100 to 40 MHz, enabling determination and comparison of dielectric permittivity and complex impedance. Complex relative permeability of toroid shaped samples was measured on an impedance analyzer in the frequency range from 1 MHz to 500 MHz.",
publisher = "Belgrade : Institute for Multidisciplinary Research of the University of Belgrade",
journal = "Programme and the Book of Abstracts / 4th Conference of The Serbian Society for Ceramic Materials, 4CSCS-2017, June 14-16, 2017, Belgrade, Serbia",
title = "Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite",
pages = "102-102"
}
Luković, M. D., Nikolić, M. V., Balaz, N., Milutinov, M., Vasiljević, Z. Ž., Labus, N.,& Aleksić, O. S. (2017). Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite.
Programme and the Book of Abstracts / 4th Conference of The Serbian Society for Ceramic Materials, 4CSCS-2017, June 14-16, 2017, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research of the University of Belgrade., 102-102.
Luković MD, Nikolić MV, Balaz N, Milutinov M, Vasiljević ZŽ, Labus N, Aleksić OS. Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite. Programme and the Book of Abstracts / 4th Conference of The Serbian Society for Ceramic Materials, 4CSCS-2017, June 14-16, 2017, Belgrade, Serbia. 2017;:102-102.
Luković Miloljub D., Nikolić Maria Vesna, Balaz Nelu, Milutinov Miodrag, Vasiljević Zorka Ž., Labus Nebojša, Aleksić Obrad S., "Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite" Programme and the Book of Abstracts / 4th Conference of The Serbian Society for Ceramic Materials, 4CSCS-2017, June 14-16, 2017, Belgrade, Serbia (2017):102-102

Dilatometer as a scientific tool

Labus, Nebojša; Pavlović, Vladimir B.; Vasiljević, Zorka Ž.; Nikolić, Maria Vesna

(Belgrade : Serbian Ceramic Society, 2017)

TY  - CONF
AU  - Labus, Nebojša
AU  - Pavlović, Vladimir B.
AU  - Vasiljević, Zorka Ž.
AU  - Nikolić, Maria Vesna
PY  - 2017
AB  - Dilatometry is defined as the dimensional change of a solid specimen recorded during temperature schedule. Set of data obtained in such a manner are known as dilatogram. Dilatograms for different sort of materials represent an important trace for deduction of other materials properties than volume. Property parameters directly appointable from the dilatogram graph are: thermal expansion coefficient for the temperature interval, glass transition temperature, phasetransition temperature, sintering shrinkage and sintering temperature for maximal shrinkage rate, crystallization point temperature for amorphous bulk metallic glasses, defect annealing temperature. From dilatometric data we can also calculate more complex values such as the sintering activation energy, deduce sintering kinetic mechanisms, for the phase transition kinetic parameters and phase composition, defect concentration, materials thermal expansion coefficient at a particular temperature, solid state reaction kinetic parameters. Dilatometric devices regarding the construction are divided into contact and non contact ones, for they physically exert force on the specimen or not. Furthermore, contact dilatometric devices can be ascribed due to their construction as vertical and horizontal. This categorization leads to different and changeable contact force on the specimen. Vertical dilatometers usually use higher and temporarily changeable forces applied on the specimen. They can be, with suitable equipment, used for other mechanical properties determination than expansion, such as compressibility, tension or inflection. Non contact devices are divided into interferometric and optical. Interferometric ones use a two laser beams construction where for the length change measuring they count the number of wave lengths that are formed as a path difference between two beams. Optical devices, however, uses monochromatic light projected on the specimen that forms shadow recorded on an optical sensor. Obtained images are then analyzed for the specimen`s dimensional change.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VI: New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, September 18-20, 2017
T1  - Dilatometer as a scientific tool
SP  - 49
EP  - 49
ER  - 
@conference{
author = "Labus, Nebojša and Pavlović, Vladimir B. and Vasiljević, Zorka Ž. and Nikolić, Maria Vesna",
year = "2017",
abstract = "Dilatometry is defined as the dimensional change of a solid specimen recorded during temperature schedule. Set of data obtained in such a manner are known as dilatogram. Dilatograms for different sort of materials represent an important trace for deduction of other materials properties than volume. Property parameters directly appointable from the dilatogram graph are: thermal expansion coefficient for the temperature interval, glass transition temperature, phasetransition temperature, sintering shrinkage and sintering temperature for maximal shrinkage rate, crystallization point temperature for amorphous bulk metallic glasses, defect annealing temperature. From dilatometric data we can also calculate more complex values such as the sintering activation energy, deduce sintering kinetic mechanisms, for the phase transition kinetic parameters and phase composition, defect concentration, materials thermal expansion coefficient at a particular temperature, solid state reaction kinetic parameters. Dilatometric devices regarding the construction are divided into contact and non contact ones, for they physically exert force on the specimen or not. Furthermore, contact dilatometric devices can be ascribed due to their construction as vertical and horizontal. This categorization leads to different and changeable contact force on the specimen. Vertical dilatometers usually use higher and temporarily changeable forces applied on the specimen. They can be, with suitable equipment, used for other mechanical properties determination than expansion, such as compressibility, tension or inflection. Non contact devices are divided into interferometric and optical. Interferometric ones use a two laser beams construction where for the length change measuring they count the number of wave lengths that are formed as a path difference between two beams. Optical devices, however, uses monochromatic light projected on the specimen that forms shadow recorded on an optical sensor. Obtained images are then analyzed for the specimen`s dimensional change.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VI: New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, September 18-20, 2017",
title = "Dilatometer as a scientific tool",
pages = "49-49"
}
Labus, N., Pavlović, V. B., Vasiljević, Z. Ž.,& Nikolić, M. V. (2017). Dilatometer as a scientific tool.
Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VI: New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, September 18-20, 2017
Belgrade : Serbian Ceramic Society., 49-49.
Labus N, Pavlović VB, Vasiljević ZŽ, Nikolić MV. Dilatometer as a scientific tool. Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VI: New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, September 18-20, 2017. 2017;:49-49.
Labus Nebojša, Pavlović Vladimir B., Vasiljević Zorka Ž., Nikolić Maria Vesna, "Dilatometer as a scientific tool" Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VI: New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, September 18-20, 2017 (2017):49-49

Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment

Labus, Nebojša; Vasiljević, Zorka Ž.; Aleksić, Obrad S.; Vuković, Miloljub; Marković, Smilja; Pavlović, Vladimir B.; Mentus, Slavko; Nikolić, Maria Vesna

(Belgrade : Serbian Ceramic Society, 2016)

TY  - CONF
AU  - Labus, Nebojša
AU  - Vasiljević, Zorka Ž.
AU  - Aleksić, Obrad S.
AU  - Vuković, Miloljub
AU  - Marković, Smilja
AU  - Pavlović, Vladimir B.
AU  - Mentus, Slavko
AU  - Nikolić, Maria Vesna
PY  - 2016
AB  - Commercial Mn-Zn powder (Mn0.63Zn0.37Fe2O4, 93 wt. % and Fe2O3 7 wt. %) was milled 0.5, 1, 2 and 4 hours in a planetary ball mill. Powders were characterized with XRD, SEM and particle seizer. Subsequent heating was monitored on TGA/DTA in air atmosphere. After compaction of the milled powders, sintering was also performed in a dilatometric device. Sintered specimens were characterized microstructurally with SEM on a fresh breakage. Ferrite powders changed with milling as well as with second run heating are characterised to approach the possible best ratio of the milling and heating that should be used to obtain desired micrstructure.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : V Serbian Ceramic Society Conference, Sep 21-23 September 2016, Belgrade
T1  - Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment
SP  - 48
EP  - 48
UR  - https://hdl.handle.net/21.15107/rcub_dais_869
ER  - 
@conference{
author = "Labus, Nebojša and Vasiljević, Zorka Ž. and Aleksić, Obrad S. and Vuković, Miloljub and Marković, Smilja and Pavlović, Vladimir B. and Mentus, Slavko and Nikolić, Maria Vesna",
year = "2016",
abstract = "Commercial Mn-Zn powder (Mn0.63Zn0.37Fe2O4, 93 wt. % and Fe2O3 7 wt. %) was milled 0.5, 1, 2 and 4 hours in a planetary ball mill. Powders were characterized with XRD, SEM and particle seizer. Subsequent heating was monitored on TGA/DTA in air atmosphere. After compaction of the milled powders, sintering was also performed in a dilatometric device. Sintered specimens were characterized microstructurally with SEM on a fresh breakage. Ferrite powders changed with milling as well as with second run heating are characterised to approach the possible best ratio of the milling and heating that should be used to obtain desired micrstructure.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : V Serbian Ceramic Society Conference, Sep 21-23 September 2016, Belgrade",
title = "Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment",
pages = "48-48",
url = "https://hdl.handle.net/21.15107/rcub_dais_869"
}
Labus, N., Vasiljević, Z. Ž., Aleksić, O. S., Vuković, M., Marković, S., Pavlović, V. B., Mentus, S.,& Nikolić, M. V. (2016). Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment.
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : V Serbian Ceramic Society Conference, Sep 21-23 September 2016, Belgrade
Belgrade : Serbian Ceramic Society., 48-48.
Labus N, Vasiljević ZŽ, Aleksić OS, Vuković M, Marković S, Pavlović VB, Mentus S, Nikolić MV. Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment. Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : V Serbian Ceramic Society Conference, Sep 21-23 September 2016, Belgrade. 2016;:48-48.
Labus Nebojša, Vasiljević Zorka Ž., Aleksić Obrad S., Vuković Miloljub, Marković Smilja, Pavlović Vladimir B., Mentus Slavko, Nikolić Maria Vesna, "Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment" Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : V Serbian Ceramic Society Conference, Sep 21-23 September 2016, Belgrade (2016):48-48

Influence of starting powder milling on structural properties, complex impedance, electrical conductivity and permeability of Mn–Zn ferrite

Milutinov, M.; Nikolić, Maria Vesna; Luković, Miloljub D.; Blaž, Nelu; Labus, Nebojša; Živanov, Ljiljana D.; Aleksić, Obrad S.

(Springer, 2016)

TY  - JOUR
AU  - Milutinov, M.
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub D.
AU  - Blaž, Nelu
AU  - Labus, Nebojša
AU  - Živanov, Ljiljana D.
AU  - Aleksić, Obrad S.
PY  - 2016
AB  - In this work we have analyzed how milling starting commercial Mn–Zn powder prior to the sintering process has an influence on electrical conductivity, relative permittivity and complex impedance in the frequency range from 100 Hz to 1 GHz and relative permeability in the frequency range 1–500 MHz. Starting powders additionally were milled for 30, 60, 120 and 240 min followed by sintering disk samples between 900 and 1300 °C. Structural properties were analyzed using XRD and SEM analysis. Milling the starting powder reduced grain and crystallite size, but longer milling leads to agglomeration and consequently an inhomogeneous microstructure that was more expressed at higher sintering temperatures. Milling the starting powder improved relative permeability, reaching a maximum for samples of starting powder milled for 60 min and sintered at 1200 °C.
PB  - Springer
T2  - Journal of Materials Science: Materials in Electronics
T1  - Influence of starting powder milling on structural properties, complex impedance, electrical conductivity and permeability of Mn–Zn ferrite
SP  - 11856
EP  - 11865
VL  - 27
IS  - 11
DO  - 10.1007/s10854-016-5328-1
ER  - 
@article{
author = "Milutinov, M. and Nikolić, Maria Vesna and Luković, Miloljub D. and Blaž, Nelu and Labus, Nebojša and Živanov, Ljiljana D. and Aleksić, Obrad S.",
year = "2016",
abstract = "In this work we have analyzed how milling starting commercial Mn–Zn powder prior to the sintering process has an influence on electrical conductivity, relative permittivity and complex impedance in the frequency range from 100 Hz to 1 GHz and relative permeability in the frequency range 1–500 MHz. Starting powders additionally were milled for 30, 60, 120 and 240 min followed by sintering disk samples between 900 and 1300 °C. Structural properties were analyzed using XRD and SEM analysis. Milling the starting powder reduced grain and crystallite size, but longer milling leads to agglomeration and consequently an inhomogeneous microstructure that was more expressed at higher sintering temperatures. Milling the starting powder improved relative permeability, reaching a maximum for samples of starting powder milled for 60 min and sintered at 1200 °C.",
publisher = "Springer",
journal = "Journal of Materials Science: Materials in Electronics",
title = "Influence of starting powder milling on structural properties, complex impedance, electrical conductivity and permeability of Mn–Zn ferrite",
pages = "11856-11865",
volume = "27",
number = "11",
doi = "10.1007/s10854-016-5328-1"
}
Milutinov, M., Nikolić, M. V., Luković, M. D., Blaž, N., Labus, N., Živanov, L. D.,& Aleksić, O. S. (2016). Influence of starting powder milling on structural properties, complex impedance, electrical conductivity and permeability of Mn–Zn ferrite.
Journal of Materials Science: Materials in Electronics
Springer., 27(11), 11856-11865.
https://doi.org/10.1007/s10854-016-5328-1
Milutinov M, Nikolić MV, Luković MD, Blaž N, Labus N, Živanov LD, Aleksić OS. Influence of starting powder milling on structural properties, complex impedance, electrical conductivity and permeability of Mn–Zn ferrite. Journal of Materials Science: Materials in Electronics. 2016;27(11):11856-11865.
doi:10.1007/s10854-016-5328-1.
Milutinov M., Nikolić Maria Vesna, Luković Miloljub D., Blaž Nelu, Labus Nebojša, Živanov Ljiljana D., Aleksić Obrad S., "Influence of starting powder milling on structural properties, complex impedance, electrical conductivity and permeability of Mn–Zn ferrite" Journal of Materials Science: Materials in Electronics, 27, no. 11 (2016):11856-11865,
https://doi.org/10.1007/s10854-016-5328-1 .
1
2

Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films

Vasiljević, Zorka Ž.; Aleksić, Obrad S.; Luković, Miloljub D.; Vujković, Milica; Pavlović, Vladimir B.; Labus, Nebojša; Nikolić, Maria Vesna

(Belgrade : Institute of Technical Sciences of the Serbian Academz of Sciences and Arts, 2016)

TY  - CONF
AU  - Vasiljević, Zorka Ž.
AU  - Aleksić, Obrad S.
AU  - Luković, Miloljub D.
AU  - Vujković, Milica
AU  - Pavlović, Vladimir B.
AU  - Labus, Nebojša
AU  - Nikolić, Maria Vesna
PY  - 2016
AB  - Pseudobrookite paste was composed of a mixture of starting nanopowders of hematite (α-Fe2O3) and anatase (TiO2) in the molar ratio 1:1.5, organic vehicle and glass frit. The paste was screen printed on on fluorine-doped tin oxide (FTO) glass substrate using screen printing technology. Structural, morphological and optical studies have been carried out using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM). The photo-electrochemical performance of Fe2TiO5 screen printed thick film was examined under xenon lamp illumination in 1 M NaOH electrolyte.
PB  - Belgrade : Institute of Technical Sciences of the Serbian Academz of Sciences and Arts
C3  - Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade
T1  - Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films
SP  - 45
EP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_dais_893
ER  - 
@conference{
author = "Vasiljević, Zorka Ž. and Aleksić, Obrad S. and Luković, Miloljub D. and Vujković, Milica and Pavlović, Vladimir B. and Labus, Nebojša and Nikolić, Maria Vesna",
year = "2016",
abstract = "Pseudobrookite paste was composed of a mixture of starting nanopowders of hematite (α-Fe2O3) and anatase (TiO2) in the molar ratio 1:1.5, organic vehicle and glass frit. The paste was screen printed on on fluorine-doped tin oxide (FTO) glass substrate using screen printing technology. Structural, morphological and optical studies have been carried out using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM). The photo-electrochemical performance of Fe2TiO5 screen printed thick film was examined under xenon lamp illumination in 1 M NaOH electrolyte.",
publisher = "Belgrade : Institute of Technical Sciences of the Serbian Academz of Sciences and Arts",
journal = "Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade",
title = "Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films",
pages = "45-45",
url = "https://hdl.handle.net/21.15107/rcub_dais_893"
}
Vasiljević, Z. Ž., Aleksić, O. S., Luković, M. D., Vujković, M., Pavlović, V. B., Labus, N.,& Nikolić, M. V. (2016). Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films.
Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade
Belgrade : Institute of Technical Sciences of the Serbian Academz of Sciences and Arts., 45-45.
Vasiljević ZŽ, Aleksić OS, Luković MD, Vujković M, Pavlović VB, Labus N, Nikolić MV. Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films. Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade. 2016;:45-45.
Vasiljević Zorka Ž., Aleksić Obrad S., Luković Miloljub D., Vujković Milica, Pavlović Vladimir B., Labus Nebojša, Nikolić Maria Vesna, "Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films" Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade (2016):45-45