TY  - CONF
AU  - Labus, Nebojša J.
AU  - Marković, Smilja
AU  - Nikolić, Maria Vesna
AU  - Rosić, Milena
AU  - Matijašević, Srđan
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13641
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1610
AB  - Sintering and phase transition are often superimposed at dimensional change diagram recorded during heating. Phase transition kinetic is thus hard to deconvolute due to the superposition of the sintering and phase transition dimensional change phenomena. Metastabile perovskite phase ZnTiO3has transition to stabile spinel Zn2TiO4which occurs at 945oC with high kinetic rate. Nano powder with 40 nm particle diameter was pressed uniaxially at 200 MPa pressure without binder to form compact that will be consequently sintered. Dimensional change during heating was monitored using dilatometric thermo-mechanical analyzer TMA model SETSYS Evolution. Lever`s rule was used to calculate amount of the emerging phase during phase transition. The compacted specimens were treated on the nonisothermal schedule up to 1050oC.Sintering phenomenon of the ZnTiO3 nanopowder compact was also recorded up to 900oCwith isothermal holding of 25 minutes where phase transition was avoided due to lower temperature and isothermal holding. Second run heating of the obtained sintered specimens were recorded with the heating schedule of non-isothermal heating up to 1050oC. Kinetic of the phase transition was obtained from dilatograms recorded during sintering and from bulk on the second run heating. Furthermore, phase transition kinetics was obtained by subsequent data subtraction of the sintering curves without phase transition from the dilatation sintering curves containing phase transition. In such a manner complex kinetics of phenomena such as sintering, linear expansion and phase transition recorded as dimensional change during heating brings the recognition of their mutual interconnected relations. Also application of these mathematical operations on dilatometric data leads to the established procedure for the sintering and phase transition data treatment.
PB  - Belgrade : ETRAN Society
PB  - Belgrade : Academic Mind
C3  - Зборник радова / IX међународне конференције ИцЕТРАН и LXVI конференције ЕТРАН, Нови Пазар 6-9. јуна 2022. године = Proceedings / IX International Conference IcETRAN and LXVI ETRAN Conference, Novi Pazar, Serbia, 6-9, June, 2022
T1  - Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution
EP  - 486
SP  - 479
UR  - https://hdl.handle.net/21.15107/rcub_dais_13641
ER  - 

@conference{
author = "Labus, Nebojša J. and Marković, Smilja and Nikolić, Maria Vesna and Rosić, Milena and Matijašević, Srđan",
year = "2022",
abstract = "Sintering and phase transition are often superimposed at dimensional change diagram recorded during heating. Phase transition kinetic is thus hard to deconvolute due to the superposition of the sintering and phase transition dimensional change phenomena. Metastabile perovskite phase ZnTiO3has transition to stabile spinel Zn2TiO4which occurs at 945oC with high kinetic rate. Nano powder with 40 nm particle diameter was pressed uniaxially at 200 MPa pressure without binder to form compact that will be consequently sintered. Dimensional change during heating was monitored using dilatometric thermo-mechanical analyzer TMA model SETSYS Evolution. Lever`s rule was used to calculate amount of the emerging phase during phase transition. The compacted specimens were treated on the nonisothermal schedule up to 1050oC.Sintering phenomenon of the ZnTiO3 nanopowder compact was also recorded up to 900oCwith isothermal holding of 25 minutes where phase transition was avoided due to lower temperature and isothermal holding. Second run heating of the obtained sintered specimens were recorded with the heating schedule of non-isothermal heating up to 1050oC. Kinetic of the phase transition was obtained from dilatograms recorded during sintering and from bulk on the second run heating. Furthermore, phase transition kinetics was obtained by subsequent data subtraction of the sintering curves without phase transition from the dilatation sintering curves containing phase transition. In such a manner complex kinetics of phenomena such as sintering, linear expansion and phase transition recorded as dimensional change during heating brings the recognition of their mutual interconnected relations. Also application of these mathematical operations on dilatometric data leads to the established procedure for the sintering and phase transition data treatment.",
publisher = "Belgrade : ETRAN Society, Belgrade : Academic Mind",
journal = "Зборник радова / IX међународне конференције ИцЕТРАН и LXVI конференције ЕТРАН, Нови Пазар 6-9. јуна 2022. године = Proceedings / IX International Conference IcETRAN and LXVI ETRAN Conference, Novi Pazar, Serbia, 6-9, June, 2022",
title = "Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution",
pages = "486-479",
url = "https://hdl.handle.net/21.15107/rcub_dais_13641"
}

Labus, N. J., Marković, S., Nikolić, M. V., Rosić, M.,& Matijašević, S.. (2022). Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution. in Зборник радова / IX међународне конференције ИцЕТРАН и LXVI конференције ЕТРАН, Нови Пазар 6-9. јуна 2022. године = Proceedings / IX International Conference IcETRAN and LXVI ETRAN Conference, Novi Pazar, Serbia, 6-9, June, 2022
Belgrade : ETRAN Society., 479-486.
https://hdl.handle.net/21.15107/rcub_dais_13641

Labus NJ, Marković S, Nikolić MV, Rosić M, Matijašević S. Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution. in Зборник радова / IX међународне конференције ИцЕТРАН и LXVI конференције ЕТРАН, Нови Пазар 6-9. јуна 2022. године = Proceedings / IX International Conference IcETRAN and LXVI ETRAN Conference, Novi Pazar, Serbia, 6-9, June, 2022. 2022;:479-486.
https://hdl.handle.net/21.15107/rcub_dais_13641 .

Labus, Nebojša J., Marković, Smilja, Nikolić, Maria Vesna, Rosić, Milena, Matijašević, Srđan, "Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution" in Зборник радова / IX међународне конференције ИцЕТРАН и LXVI конференције ЕТРАН, Нови Пазар 6-9. јуна 2022. године = Proceedings / IX International Conference IcETRAN and LXVI ETRAN Conference, Novi Pazar, Serbia, 6-9, June, 2022 (2022):479-486,
https://hdl.handle.net/21.15107/rcub_dais_13641 .

TY  - CONF
AU  - Labus, Nebojša J.
AU  - Rosić, Milena
AU  - Marković, Smilja
AU  - Nikolić, Maria Vesna
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/11894
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1632
AB  - Sintering is often accompanied with phase transition. Phase transition kinetic is thushard to deconvolute due to the superposition of the sintering and phase transition dimensionalchange phenomena. Metastabile perovskite phase ZnTiO3 reforms to stabile spinel Zn2TiO4 at950°C with high kinetic rate. Dimensional change during heating of ZnTiO3 nano powdercompacts up to 1050°C was monitored using dilatometric thermo mechanical analyzer TMAmodel SETSYS Evolution. Shrinkage of simultaneous sintering and phase transition wererecorded. The obtained non-isothermally sintered specimens were then second run treatedwith same schedule. Sintering phenomenon of the ZnTiO3 nanopowder compact was alsorecorded up to 900°C with isothermal holding of 25 minutes. Here phase transition wasavoided with lower temperature and isothermal holding. Second run heating, of isothermallyobtained specimens at 900°C, was recorded with non-isothermal heating schedule to 1050°C.This has led to the dilatometric curve record of the ZnTiO3 phase transition in polycrystallinebulk specimen, now recorded without sintering. In such a manner when kinetic is complex,the separation of phenomena such as sintering, linear expansion and phase transition areleading to the knowledge of their mutual interconnected relations. Also application ofmathematical operations on dilatometric data leads to the established procedure for thesintering and phase transition data treatment.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021
T1  - Dilatometric study of the ZnTiO3 phase transition kinetic  influenced  by nano powder sintering
EP  - 41
SP  - 41
UR  - https://hdl.handle.net/21.15107/rcub_dais_11894
ER  - 

@conference{
author = "Labus, Nebojša J. and Rosić, Milena and Marković, Smilja and Nikolić, Maria Vesna",
year = "2021",
abstract = "Sintering is often accompanied with phase transition. Phase transition kinetic is thushard to deconvolute due to the superposition of the sintering and phase transition dimensionalchange phenomena. Metastabile perovskite phase ZnTiO3 reforms to stabile spinel Zn2TiO4 at950°C with high kinetic rate. Dimensional change during heating of ZnTiO3 nano powdercompacts up to 1050°C was monitored using dilatometric thermo mechanical analyzer TMAmodel SETSYS Evolution. Shrinkage of simultaneous sintering and phase transition wererecorded. The obtained non-isothermally sintered specimens were then second run treatedwith same schedule. Sintering phenomenon of the ZnTiO3 nanopowder compact was alsorecorded up to 900°C with isothermal holding of 25 minutes. Here phase transition wasavoided with lower temperature and isothermal holding. Second run heating, of isothermallyobtained specimens at 900°C, was recorded with non-isothermal heating schedule to 1050°C.This has led to the dilatometric curve record of the ZnTiO3 phase transition in polycrystallinebulk specimen, now recorded without sintering. In such a manner when kinetic is complex,the separation of phenomena such as sintering, linear expansion and phase transition areleading to the knowledge of their mutual interconnected relations. Also application ofmathematical operations on dilatometric data leads to the established procedure for thesintering and phase transition data treatment.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021",
title = "Dilatometric study of the ZnTiO3 phase transition kinetic  influenced  by nano powder sintering",
pages = "41-41",
url = "https://hdl.handle.net/21.15107/rcub_dais_11894"
}

Labus, N. J., Rosić, M., Marković, S.,& Nikolić, M. V.. (2021). Dilatometric study of the ZnTiO3 phase transition kinetic  influenced  by nano powder sintering. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021
Belgrade : Serbian Ceramic Society., 41-41.
https://hdl.handle.net/21.15107/rcub_dais_11894

Labus NJ, Rosić M, Marković S, Nikolić MV. Dilatometric study of the ZnTiO3 phase transition kinetic  influenced  by nano powder sintering. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021. 2021;:41-41.
https://hdl.handle.net/21.15107/rcub_dais_11894 .

Labus, Nebojša J., Rosić, Milena, Marković, Smilja, Nikolić, Maria Vesna, "Dilatometric study of the ZnTiO3 phase transition kinetic  influenced  by nano powder sintering" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021 (2021):41-41,
https://hdl.handle.net/21.15107/rcub_dais_11894 .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Z
AU  - Luković, Miloljub
AU  - Labus, Nebojša J.
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1348
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 mu m) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600 degrees 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 degrees C 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 M Omega (60 mu m), from 23.4 to 0.25 M Omega (48 mu m) and from 6.8 to 0.02 M Omega (36 mu m) at 25 degrees C, while at 50 degrees C and also 100 Hz it reduced from 14 M Omega to 0.72 \text{M}\Omega (48 mu m) 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  - Institute of Electrical and Electronics Engineers Inc.
T2  - IEEE Sensors Journal
T1  - Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material
EP  - 7516
IS  - 14
SP  - 7509
VL  - 20
DO  - 10.1109/JSEN.2020.2983135
ER  - 

@article{
author = "Nikolić, Maria Vesna and Dojčinović, Milena and Vasiljević, Zorka Z and Luković, Miloljub and Labus, Nebojša J.",
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 mu m) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600 degrees 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 degrees C 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 M Omega (60 mu m), from 23.4 to 0.25 M Omega (48 mu m) and from 6.8 to 0.02 M Omega (36 mu m) at 25 degrees C, while at 50 degrees C and also 100 Hz it reduced from 14 M Omega to 0.72 \text{M}\Omega (48 mu m) 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 = "Institute of Electrical and Electronics Engineers Inc.",
journal = "IEEE Sensors Journal",
title = "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material",
pages = "7516-7509",
number = "14",
volume = "20",
doi = "10.1109/JSEN.2020.2983135"
}

Nikolić, M. V., Dojčinović, M., Vasiljević, Z. Z., Luković, M.,& Labus, N. J.. (2020). Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material. in IEEE Sensors Journal
Institute of Electrical and Electronics Engineers Inc.., 20(14), 7509-7516.
https://doi.org/10.1109/JSEN.2020.2983135

Nikolić MV, Dojčinović M, Vasiljević ZZ, Luković M, Labus NJ. Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material. in IEEE Sensors Journal. 2020;20(14):7509-7516.
doi:10.1109/JSEN.2020.2983135 .

Nikolić, Maria Vesna, Dojčinović, Milena, Vasiljević, Zorka Z, Luković, Miloljub, Labus, Nebojša J., "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material" in IEEE Sensors Journal, 20, no. 14 (2020):7509-7516,
https://doi.org/10.1109/JSEN.2020.2983135 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Labus, Nebojša J.
AU  - Pavlović, Vera P.
AU  - Marković, Smilja
AU  - Luković, Miloljub
AU  - Tadić, Nenad B.
AU  - Vujančević, Jelena
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1364
AB  - Nanocrystalline Zn2SnO4/SnO2 powder was obtained by a solid state reaction of ZnO and SnO2 nanopowders mixed in the molar ratio 1:1. The phase composition of the obtained powder was studied by XRD and Raman spectroscopy, morphology and texture were characterized by FESEM, TEM, BET and Hg porosimetry, while XPS and FTIR spectroscopy were used to determine the surface chemistry. The influence of humidity on complex impedance was monitored on bulk samples in the relative humidity (RH) range 30-90% in a climatic chamber in the frequency range 42 Hz- 1 MHz at working temperatures of 25 and 50 degrees C. Change in RH had a significant influence on impedance reduction, especially noticeable in the lower frequency range, indicating potential application of this nanocomposite as a humidity sensing material. Increase in RH led to an increase in AC conductivity that changed with frequency according to the Jonscher power law. The frequency exponent decreased with increase in RH and sample temperature indicating that the correlated hopping barrier model is the dominant conduction mechanism. Complex impedance was analyzed using an equivalent circuit consisting of a parallel resistance and constant phase element, showing the dominant influence of grain boundaries at both working temperatures (25 and 50 degrees C). The resistance decreased, while the capacitance and relaxation frequency increased with increase in RH. At high humidity an added Wartburg element enabled modeling of the charge diffusion process.
PB  - Springer, Dordrecht
T2  - Journal of Electroceramics
T1  - Nanocrystalline Zn2SnO4/SnO2: Crystal structure and humidity influence on complex impedance
EP  - 147
IS  - 4
SP  - 135
VL  - 45
DO  - 10.1007/s10832-021-00232-z
ER  - 

@article{
author = "Nikolić, Maria Vesna and Labus, Nebojša J. and Pavlović, Vera P. and Marković, Smilja and Luković, Miloljub and Tadić, Nenad B. and Vujančević, Jelena and Vlahović, Branislav and Pavlović, Vladimir B",
year = "2020",
abstract = "Nanocrystalline Zn2SnO4/SnO2 powder was obtained by a solid state reaction of ZnO and SnO2 nanopowders mixed in the molar ratio 1:1. The phase composition of the obtained powder was studied by XRD and Raman spectroscopy, morphology and texture were characterized by FESEM, TEM, BET and Hg porosimetry, while XPS and FTIR spectroscopy were used to determine the surface chemistry. The influence of humidity on complex impedance was monitored on bulk samples in the relative humidity (RH) range 30-90% in a climatic chamber in the frequency range 42 Hz- 1 MHz at working temperatures of 25 and 50 degrees C. Change in RH had a significant influence on impedance reduction, especially noticeable in the lower frequency range, indicating potential application of this nanocomposite as a humidity sensing material. Increase in RH led to an increase in AC conductivity that changed with frequency according to the Jonscher power law. The frequency exponent decreased with increase in RH and sample temperature indicating that the correlated hopping barrier model is the dominant conduction mechanism. Complex impedance was analyzed using an equivalent circuit consisting of a parallel resistance and constant phase element, showing the dominant influence of grain boundaries at both working temperatures (25 and 50 degrees C). The resistance decreased, while the capacitance and relaxation frequency increased with increase in RH. At high humidity an added Wartburg element enabled modeling of the charge diffusion process.",
publisher = "Springer, Dordrecht",
journal = "Journal of Electroceramics",
title = "Nanocrystalline Zn2SnO4/SnO2: Crystal structure and humidity influence on complex impedance",
pages = "147-135",
number = "4",
volume = "45",
doi = "10.1007/s10832-021-00232-z"
}

Nikolić, M. V., Labus, N. J., Pavlović, V. P., Marković, S., Luković, M., Tadić, N. B., Vujančević, J., Vlahović, B.,& Pavlović, V. B.. (2020). Nanocrystalline Zn2SnO4/SnO2: Crystal structure and humidity influence on complex impedance. in Journal of Electroceramics
Springer, Dordrecht., 45(4), 135-147.
https://doi.org/10.1007/s10832-021-00232-z

Nikolić MV, Labus NJ, Pavlović VP, Marković S, Luković M, Tadić NB, Vujančević J, Vlahović B, Pavlović VB. Nanocrystalline Zn2SnO4/SnO2: Crystal structure and humidity influence on complex impedance. in Journal of Electroceramics. 2020;45(4):135-147.
doi:10.1007/s10832-021-00232-z .

Nikolić, Maria Vesna, Labus, Nebojša J., Pavlović, Vera P., Marković, Smilja, Luković, Miloljub, Tadić, Nenad B., Vujančević, Jelena, Vlahović, Branislav, Pavlović, Vladimir B, "Nanocrystalline Zn2SnO4/SnO2: Crystal structure and humidity influence on complex impedance" in Journal of Electroceramics, 45, no. 4 (2020):135-147,
https://doi.org/10.1007/s10832-021-00232-z . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav B.
AU  - Labus, Nebojša J.
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Radovanović, Milan
AU  - Tadić, Nenad B.
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1349
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite, Ia (3) over bar) crystal structure was obtained by a solid state reaction. Thick film paste (powder + organic vehicles) was screen printed on alumina substrate with test interdigitated PdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) was determined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable pore system. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of the thick film compared to powder. Impedance response of the thick film sensor was monitored in a humidity chamber in the relative humidity (RH) range 30-90%, at room temperature (25 degrees C) and frequency range from 42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 M Omega for RH 30% to 0.68 M Omega for RH 90%. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. The sensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% was obtained.
PB  - Elsevier, Amsterdam
T2  - Materials Science and Engineering B-Advanced Functional Solid-State Materials
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
VL  - 257
DO  - 10.1016/j.mseb.2020.114547
ER  - 

@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav B. and Labus, Nebojša J. and Luković, Miloljub and Dojčinović, Milena and Radovanović, Milan and Tadić, Nenad B.",
year = "2020",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite, Ia (3) over bar) crystal structure was obtained by a solid state reaction. Thick film paste (powder + organic vehicles) was screen printed on alumina substrate with test interdigitated PdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) was determined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable pore system. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of the thick film compared to powder. Impedance response of the thick film sensor was monitored in a humidity chamber in the relative humidity (RH) range 30-90%, at room temperature (25 degrees C) and frequency range from 42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 M Omega for RH 30% to 0.68 M Omega for RH 90%. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. The sensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% was obtained.",
publisher = "Elsevier, Amsterdam",
journal = "Materials Science and Engineering B-Advanced Functional Solid-State Materials",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
volume = "257",
doi = "10.1016/j.mseb.2020.114547"
}

Nikolić, M. V., Krstić, J. B., Labus, N. J., Luković, M., Dojčinović, M., Radovanović, M.,& Tadić, N. B.. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B-Advanced Functional Solid-State Materials
Elsevier, Amsterdam., 257.
https://doi.org/10.1016/j.mseb.2020.114547

Nikolić MV, Krstić JB, Labus NJ, Luković M, Dojčinović M, Radovanović M, Tadić NB. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B-Advanced Functional Solid-State Materials. 2020;257.
doi:10.1016/j.mseb.2020.114547 .

Nikolić, Maria Vesna, Krstić, Jugoslav B., Labus, Nebojša J., Luković, Miloljub, Dojčinović, Milena, Radovanović, Milan, Tadić, Nenad B., "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" in Materials Science and Engineering B-Advanced Functional Solid-State Materials, 257 (2020),
https://doi.org/10.1016/j.mseb.2020.114547 . .

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub
AU  - Vasiljević, Zorka Z
AU  - Dojčinović, Milena
AU  - Labus, Nebojša J.
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6999
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1621
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)
EP  - 17
SP  - 16
UR  - https://hdl.handle.net/21.15107/rcub_dais_6999
ER  - 

@conference{
author = "Nikolić, Maria Vesna and Luković, Miloljub and Vasiljević, Zorka Z and Dojčinović, Milena and Labus, Nebojša J.",
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 = "17-16",
url = "https://hdl.handle.net/21.15107/rcub_dais_6999"
}

Nikolić, M. V., Luković, M., Vasiljević, Z. Z., Dojčinović, M.,& Labus, N. J.. (2019). Humidity sensing potential of iron manganite (FeMNO3). in Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest
Budapest : [s. n.]., 16-17.
https://hdl.handle.net/21.15107/rcub_dais_6999

Nikolić MV, Luković M, Vasiljević ZZ, Dojčinović M, Labus NJ. Humidity sensing potential of iron manganite (FeMNO3). in Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest. 2019;:16-17.
https://hdl.handle.net/21.15107/rcub_dais_6999 .

Nikolić, Maria Vesna, Luković, Miloljub, Vasiljević, Zorka Z, Dojčinović, Milena, Labus, Nebojša J., "Humidity sensing potential of iron manganite (FeMNO3)" in Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest (2019):16-17,
https://hdl.handle.net/21.15107/rcub_dais_6999 .

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Z
AU  - Labus, Nebojša J.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1268
AB  - Iron manganite (FeMnO3) thick film samples were obtained by screen printing four layers of thick film paste on alumina substrate with test PdAg electrodes. The paste was made by adding organic vehicles to iron manganite powder obtained by solid state synthesis of starting hematite (alpha-Fe2O3) and manganese carbonate (MnCO3) powders. SEM analysis of the sample surface revealed a porous structure with a uniform particle size distribution. The average resulting film thickness was 48. m. The change of impedance was monitored in a humidity chamber in the relative humidity range 30.90% at three working temperatures: 25, 50 and 75 degrees C in the frequency range 42 Hz to 1 MHz. With increase in relative humidity the measured impedance decreased, showing the greatest difference at lower frequency with a low time delay (below 3%) between absorption and desorption processes (hysteresis). The sensor response and recovery times were several seconds.
PB  - IEEE Computer Society
C3  - Proceedings of the International Spring Seminar on Electronics Technology
T1  - Application of Iron Manganite Thick Films for Humidity Sensing
VL  - 2019-May
DO  - 10.1109/ISSE.2019.8810291
ER  - 

@conference{
author = "Nikolić, Maria Vesna and Luković, Miloljub and Dojčinović, Milena and Vasiljević, Zorka Z and Labus, Nebojša J.",
year = "2019",
abstract = "Iron manganite (FeMnO3) thick film samples were obtained by screen printing four layers of thick film paste on alumina substrate with test PdAg electrodes. The paste was made by adding organic vehicles to iron manganite powder obtained by solid state synthesis of starting hematite (alpha-Fe2O3) and manganese carbonate (MnCO3) powders. SEM analysis of the sample surface revealed a porous structure with a uniform particle size distribution. The average resulting film thickness was 48. m. The change of impedance was monitored in a humidity chamber in the relative humidity range 30.90% at three working temperatures: 25, 50 and 75 degrees C in the frequency range 42 Hz to 1 MHz. With increase in relative humidity the measured impedance decreased, showing the greatest difference at lower frequency with a low time delay (below 3%) between absorption and desorption processes (hysteresis). The sensor response and recovery times were several seconds.",
publisher = "IEEE Computer Society",
journal = "Proceedings of the International Spring Seminar on Electronics Technology",
title = "Application of Iron Manganite Thick Films for Humidity Sensing",
volume = "2019-May",
doi = "10.1109/ISSE.2019.8810291"
}

Nikolić, M. V., Luković, M., Dojčinović, M., Vasiljević, Z. Z.,& Labus, N. J.. (2019). Application of Iron Manganite Thick Films for Humidity Sensing. in Proceedings of the International Spring Seminar on Electronics Technology
IEEE Computer Society., 2019-May.
https://doi.org/10.1109/ISSE.2019.8810291

Nikolić MV, Luković M, Dojčinović M, Vasiljević ZZ, Labus NJ. Application of Iron Manganite Thick Films for Humidity Sensing. in Proceedings of the International Spring Seminar on Electronics Technology. 2019;2019-May.
doi:10.1109/ISSE.2019.8810291 .

Nikolić, Maria Vesna, Luković, Miloljub, Dojčinović, Milena, Vasiljević, Zorka Z, Labus, Nebojša J., "Application of Iron Manganite Thick Films for Humidity Sensing" in Proceedings of the International Spring Seminar on Electronics Technology, 2019-May (2019),
https://doi.org/10.1109/ISSE.2019.8810291 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub
AU  - Labus, Nebojša J.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1211
AB  - Bulk samples of iron manganite with a cubic Ia3 lt mml:mo stretchy="false"> lt overbar> lt /mml:mover> crystal structure were obtained by solid state synthesis (combination of milling and calcination) of starting hematite (Fe2O3) and manganese carbonate (MnCO3) powders followed by sintering green samples at 1000 degrees C for 4h. Structural characterization performed by XRD and SEM analysis confirmed the formation of iron manganite in the form of a porous network of grains and pores with average particle size of 530 and 430nm, respectively. The influence of humidity on complex impedance and dielectric properties was monitored in the relative humidity range 30-90% in a climatic chamber in the frequency range 42Hz-1MHz at working temperatures of 25 and 50 degrees C. At the lowest frequency of 42Hz the impedance reduced with relative humidity from 57.9 (RH 30%) to 3.21M ohm (RH 90%) at 25 degrees C, and from 23.3 (RH 30%) to 1.3M ohm (RH 90%) at 50 degrees C that is approximately 20 times. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. The influence of grains (bulk) was taken into account for higher relative humidity values (70% at 25 degrees C and 60% at 50 degrees C) that is related to the mechanism of water interaction with the sample surface. The dielectric constant and loss tangent decreased with increase in frequency in accordance with the Maxwell-Wagner type interfacial polarization mechanism and also increased with increase in relative humidity.
PB  - Springer, Dordrecht
T2  - Journal of Materials Science-Materials in Electronics
T1  - Influence of humidity on complex impedance and dielectric properties of iron manganite (FeMnO3)
EP  - 12405
IS  - 13
SP  - 12399
VL  - 30
DO  - 10.1007/s10854-019-01598-1
ER  - 

@article{
author = "Nikolić, Maria Vesna and Luković, Miloljub and Labus, Nebojša J.",
year = "2019",
abstract = "Bulk samples of iron manganite with a cubic Ia3 lt mml:mo stretchy="false"> lt overbar> lt /mml:mover> crystal structure were obtained by solid state synthesis (combination of milling and calcination) of starting hematite (Fe2O3) and manganese carbonate (MnCO3) powders followed by sintering green samples at 1000 degrees C for 4h. Structural characterization performed by XRD and SEM analysis confirmed the formation of iron manganite in the form of a porous network of grains and pores with average particle size of 530 and 430nm, respectively. The influence of humidity on complex impedance and dielectric properties was monitored in the relative humidity range 30-90% in a climatic chamber in the frequency range 42Hz-1MHz at working temperatures of 25 and 50 degrees C. At the lowest frequency of 42Hz the impedance reduced with relative humidity from 57.9 (RH 30%) to 3.21M ohm (RH 90%) at 25 degrees C, and from 23.3 (RH 30%) to 1.3M ohm (RH 90%) at 50 degrees C that is approximately 20 times. Analysis of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. The influence of grains (bulk) was taken into account for higher relative humidity values (70% at 25 degrees C and 60% at 50 degrees C) that is related to the mechanism of water interaction with the sample surface. The dielectric constant and loss tangent decreased with increase in frequency in accordance with the Maxwell-Wagner type interfacial polarization mechanism and also increased with increase in relative humidity.",
publisher = "Springer, Dordrecht",
journal = "Journal of Materials Science-Materials in Electronics",
title = "Influence of humidity on complex impedance and dielectric properties of iron manganite (FeMnO3)",
pages = "12405-12399",
number = "13",
volume = "30",
doi = "10.1007/s10854-019-01598-1"
}

Nikolić, M. V., Luković, M.,& Labus, N. J.. (2019). Influence of humidity on complex impedance and dielectric properties of iron manganite (FeMnO3). in Journal of Materials Science-Materials in Electronics
Springer, Dordrecht., 30(13), 12399-12405.
https://doi.org/10.1007/s10854-019-01598-1

Nikolić MV, Luković M, Labus NJ. Influence of humidity on complex impedance and dielectric properties of iron manganite (FeMnO3). in Journal of Materials Science-Materials in Electronics. 2019;30(13):12399-12405.
doi:10.1007/s10854-019-01598-1 .

Nikolić, Maria Vesna, Luković, Miloljub, Labus, Nebojša J., "Influence of humidity on complex impedance and dielectric properties of iron manganite (FeMnO3)" in Journal of Materials Science-Materials in Electronics, 30, no. 13 (2019):12399-12405,
https://doi.org/10.1007/s10854-019-01598-1 . .

TY  - CONF
AU  - Labus, Nebojša J.
AU  - Marković, Smilja
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Pavlović, Vladimir B
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4099
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1638
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
EP  - 83
SP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_dais_4099
ER  - 

@conference{
author = "Labus, Nebojša J. 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",
url = "https://hdl.handle.net/21.15107/rcub_dais_4099"
}

Labus, N. J., 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. in 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.
https://hdl.handle.net/21.15107/rcub_dais_4099

Labus NJ, Marković S, Nikolić MV, Krstić J, Pavlović VB. Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction. in 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.
https://hdl.handle.net/21.15107/rcub_dais_4099 .

Labus, Nebojša J., 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" in 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,
https://hdl.handle.net/21.15107/rcub_dais_4099 .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub
AU  - Vasiljević, Zorka Z
AU  - Labus, Nebojša J.
AU  - Aleksić, Obrad
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1144
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 degrees 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 degrees 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 degrees C the impedance of pseudobrookite sintered at 1150 degrees C reduced over 5 times in the humidity range 40-90%, and 7 times at 60 degrees C for pseudobrookite sintered at 950 degrees 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 degrees C) for pseudobrookite sintered at 950 and 1150 degrees C.
PB  - Springer, Dordrecht
T2  - Journal of Materials Science-Materials in Electronics
T1  - Humidity sensing potential of Fe2TiO5-pseudobrookite
EP  - 9238
IS  - 11
SP  - 9227
VL  - 29
DO  - 10.1007/s10854-018-8951-1
ER  - 

@article{
author = "Nikolić, Maria Vesna and Luković, Miloljub and Vasiljević, Zorka Z and Labus, Nebojša J. and Aleksić, Obrad",
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 degrees 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 degrees 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 degrees C the impedance of pseudobrookite sintered at 1150 degrees C reduced over 5 times in the humidity range 40-90%, and 7 times at 60 degrees C for pseudobrookite sintered at 950 degrees 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 degrees C) for pseudobrookite sintered at 950 and 1150 degrees C.",
publisher = "Springer, Dordrecht",
journal = "Journal of Materials Science-Materials in Electronics",
title = "Humidity sensing potential of Fe2TiO5-pseudobrookite",
pages = "9238-9227",
number = "11",
volume = "29",
doi = "10.1007/s10854-018-8951-1"
}

Nikolić, M. V., Luković, M., Vasiljević, Z. Z., Labus, N. J.,& Aleksić, O.. (2018). Humidity sensing potential of Fe2TiO5-pseudobrookite. in Journal of Materials Science-Materials in Electronics
Springer, Dordrecht., 29(11), 9227-9238.
https://doi.org/10.1007/s10854-018-8951-1

Nikolić MV, Luković M, Vasiljević ZZ, Labus NJ, Aleksić O. Humidity sensing potential of Fe2TiO5-pseudobrookite. in Journal of Materials Science-Materials in Electronics. 2018;29(11):9227-9238.
doi:10.1007/s10854-018-8951-1 .

Nikolić, Maria Vesna, Luković, Miloljub, Vasiljević, Zorka Z, Labus, Nebojša J., Aleksić, Obrad, "Humidity sensing potential of Fe2TiO5-pseudobrookite" in Journal of Materials Science-Materials in Electronics, 29, no. 11 (2018):9227-9238,
https://doi.org/10.1007/s10854-018-8951-1 . .

TY  - CONF
AU  - Labus, Nebojša J.
AU  - Pavlović, Vladimir B
AU  - Vasiljević, Zorka Z
AU  - Nikolić, Maria Vesna
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/3681
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1637
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
EP  - 49
SP  - 49
UR  - https://hdl.handle.net/21.15107/rcub_dais_3681
ER  - 

@conference{
author = "Labus, Nebojša J. and Pavlović, Vladimir B and Vasiljević, Zorka Z 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",
url = "https://hdl.handle.net/21.15107/rcub_dais_3681"
}

Labus, N. J., Pavlović, V. B., Vasiljević, Z. Z.,& Nikolić, M. V.. (2017). Dilatometer as a scientific tool. in 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.
https://hdl.handle.net/21.15107/rcub_dais_3681

Labus NJ, Pavlović VB, Vasiljević ZZ, Nikolić MV. Dilatometer as a scientific tool. in 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.
https://hdl.handle.net/21.15107/rcub_dais_3681 .

Labus, Nebojša J., Pavlović, Vladimir B, Vasiljević, Zorka Z, Nikolić, Maria Vesna, "Dilatometer as a scientific tool" in 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,
https://hdl.handle.net/21.15107/rcub_dais_3681 .

TY  - CONF
AU  - Luković, Miloljub
AU  - Nikolić, Maria Vesna
AU  - Balaz, Nelu
AU  - Milutinov, Miodrag
AU  - Vasiljević, Zorka Z
AU  - Labus, Nebojša J.
AU  - Aleksić, Obrad S.
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/15430
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1636
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
EP  - 102
SP  - 102
UR  - https://hdl.handle.net/21.15107/rcub_dais_15430
ER  - 

@conference{
author = "Luković, Miloljub and Nikolić, Maria Vesna and Balaz, Nelu and Milutinov, Miodrag and Vasiljević, Zorka Z and Labus, Nebojša J. 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",
url = "https://hdl.handle.net/21.15107/rcub_dais_15430"
}

Luković, M., Nikolić, M. V., Balaz, N., Milutinov, M., Vasiljević, Z. Z., Labus, N. J.,& Aleksić, O. S.. (2017). Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite. in 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.
https://hdl.handle.net/21.15107/rcub_dais_15430

Luković M, Nikolić MV, Balaz N, Milutinov M, Vasiljević ZZ, Labus NJ, Aleksić OS. Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite. in 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.
https://hdl.handle.net/21.15107/rcub_dais_15430 .

Luković, Miloljub, Nikolić, Maria Vesna, Balaz, Nelu, Milutinov, Miodrag, Vasiljević, Zorka Z, Labus, Nebojša J., Aleksić, Obrad S., "Structural, electrical and magnetic properties of mechanically activated manganese and zinc ferrite" in 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,
https://hdl.handle.net/21.15107/rcub_dais_15430 .

TY  - JOUR
AU  - Labus, Nebojša J.
AU  - Vasiljević, Zorka Z
AU  - Aleksić, Obrad
AU  - Luković, Miloljub
AU  - Marković, Smilja
AU  - Pavlović, Vladimir B
AU  - Mentus, Slavko
AU  - Nikolić, Maria Vesna
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1102
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.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Characterisation of Mn0.63Zn0.37Fe2O4 Powders After Intensive Milling and Subsequent Thermal Treatment
EP  - 467
IS  - 4
SP  - 455
VL  - 49
DO  - 10.2298/SOS1704455L
ER  - 

@article{
author = "Labus, Nebojša J. and Vasiljević, Zorka Z and Aleksić, Obrad and Luković, Miloljub 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.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Characterisation of Mn0.63Zn0.37Fe2O4 Powders After Intensive Milling and Subsequent Thermal Treatment",
pages = "467-455",
number = "4",
volume = "49",
doi = "10.2298/SOS1704455L"
}

Labus, N. J., Vasiljević, Z. Z., Aleksić, O., Luković, M., Marković, S., Pavlović, V. B., Mentus, S.,& Nikolić, M. V.. (2017). Characterisation of Mn0.63Zn0.37Fe2O4 Powders After Intensive Milling and Subsequent Thermal Treatment. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(4), 455-467.
https://doi.org/10.2298/SOS1704455L

Labus NJ, Vasiljević ZZ, Aleksić O, Luković M, Marković S, Pavlović VB, Mentus S, Nikolić MV. Characterisation of Mn0.63Zn0.37Fe2O4 Powders After Intensive Milling and Subsequent Thermal Treatment. in Science of Sintering. 2017;49(4):455-467.
doi:10.2298/SOS1704455L .

Labus, Nebojša J., Vasiljević, Zorka Z, Aleksić, Obrad, Luković, Miloljub, Marković, Smilja, Pavlović, Vladimir B, Mentus, Slavko, Nikolić, Maria Vesna, "Characterisation of Mn0.63Zn0.37Fe2O4 Powders After Intensive Milling and Subsequent Thermal Treatment" in Science of Sintering, 49, no. 4 (2017):455-467,
https://doi.org/10.2298/SOS1704455L . .

TY  - JOUR
AU  - Aleksić, Obrad
AU  - Vasiljević, Zorka Z
AU  - Vujković, Milica
AU  - Nikolic, Marko
AU  - Labus, Nebojša J.
AU  - Luković, Miloljub
AU  - Nikolić, Maria Vesna
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1098
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 900A degrees 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 (similar to 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, New York
T2  - Journal of Materials Science
T1  - Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior
EP  - 5953
IS  - 10
SP  - 5938
VL  - 52
DO  - 10.1007/s10853-017-0830-2
ER  - 

@article{
author = "Aleksić, Obrad and Vasiljević, Zorka Z and Vujković, Milica and Nikolic, Marko and Labus, Nebojša J. and Luković, Miloljub 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 900A degrees 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 (similar to 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, New York",
journal = "Journal of Materials Science",
title = "Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior",
pages = "5953-5938",
number = "10",
volume = "52",
doi = "10.1007/s10853-017-0830-2"
}

Aleksić, O., Vasiljević, Z. Z., Vujković, M., Nikolic, M., Labus, N. J., Luković, M.,& Nikolić, M. V.. (2017). Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior. in Journal of Materials Science
Springer, New York., 52(10), 5938-5953.
https://doi.org/10.1007/s10853-017-0830-2

Aleksić O, Vasiljević ZZ, Vujković M, Nikolic M, Labus NJ, Luković M, Nikolić MV. Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior. in Journal of Materials Science. 2017;52(10):5938-5953.
doi:10.1007/s10853-017-0830-2 .

Aleksić, Obrad, Vasiljević, Zorka Z, Vujković, Milica, Nikolic, Marko, Labus, Nebojša J., Luković, Miloljub, Nikolić, Maria Vesna, "Structural and electronic properties of screen-printed Fe2O3/TiO2 thick films and their photoelectrochemical behavior" in Journal of Materials Science, 52, no. 10 (2017):5938-5953,
https://doi.org/10.1007/s10853-017-0830-2 . .

TY  - JOUR
AU  - Labus, Nebojša J.
AU  - Vasiljević, Zorka Z
AU  - Vasiljević-Radović, Dana
AU  - Rakic, Srdan
AU  - Nikolić, Maria Vesna
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1087
AB  - Metastable nanopowder ZnTiO3 was pressed into cylindrical compacts at 200 MPa. Compacts were treated by conventional heating with isothermal holding at 931 degrees C for 10 minutes, 25 minutes and 40 minutes. ZnTiO3 compacts were also heated with a two-step sintering schedule with maximal 913 degrees C and isothermal holding at 896 degrees 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  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Two Step Sintering of ZnTiO3 nanopowder
EP  - 60
IS  - 1
SP  - 51
VL  - 49
DO  - 10.2298/SOS1701051L
ER  - 

@article{
author = "Labus, Nebojša J. and Vasiljević, Zorka Z and Vasiljević-Radović, Dana and Rakic, Srdan 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 degrees C for 10 minutes, 25 minutes and 40 minutes. ZnTiO3 compacts were also heated with a two-step sintering schedule with maximal 913 degrees C and isothermal holding at 896 degrees 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 = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Two Step Sintering of ZnTiO3 nanopowder",
pages = "60-51",
number = "1",
volume = "49",
doi = "10.2298/SOS1701051L"
}

Labus, N. J., Vasiljević, Z. Z., Vasiljević-Radović, D., Rakic, S.,& Nikolić, M. V.. (2017). Two Step Sintering of ZnTiO3 nanopowder. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(1), 51-60.
https://doi.org/10.2298/SOS1701051L

Labus NJ, Vasiljević ZZ, Vasiljević-Radović D, Rakic S, Nikolić MV. Two Step Sintering of ZnTiO3 nanopowder. in Science of Sintering. 2017;49(1):51-60.
doi:10.2298/SOS1701051L .

Labus, Nebojša J., Vasiljević, Zorka Z, Vasiljević-Radović, Dana, Rakic, Srdan, Nikolić, Maria Vesna, "Two Step Sintering of ZnTiO3 nanopowder" in Science of Sintering, 49, no. 1 (2017):51-60,
https://doi.org/10.2298/SOS1701051L . .

TY  - JOUR
AU  - Milutinov, Miodrag M.
AU  - Nikolić, Maria Vesna
AU  - Luković, Snežana
AU  - Blaz, Nelu V.
AU  - Labus, Nebojša J.
AU  - Aleksić, Obrad
AU  - Živanov, Ljiljana D
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1088
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 degrees 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  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Influence of starting powder milling on magnetic properties of Mn-Zn ferrite
EP  - 169
IS  - 2
SP  - 160
VL  - 11
DO  - 10.2298/PAC1702160M
ER  - 

@article{
author = "Milutinov, Miodrag M. and Nikolić, Maria Vesna and Luković, Snežana and Blaz, Nelu V. and Labus, Nebojša J. and Aleksić, Obrad 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 degrees 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 = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Influence of starting powder milling on magnetic properties of Mn-Zn ferrite",
pages = "169-160",
number = "2",
volume = "11",
doi = "10.2298/PAC1702160M"
}

Milutinov, M. M., Nikolić, M. V., Luković, S., Blaz, N. V., Labus, N. J., Aleksić, O.,& Živanov, L. D.. (2017). Influence of starting powder milling on magnetic properties of Mn-Zn ferrite. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 11(2), 160-169.
https://doi.org/10.2298/PAC1702160M

Milutinov MM, Nikolić MV, Luković S, Blaz NV, Labus NJ, Aleksić O, Živanov LD. Influence of starting powder milling on magnetic properties of Mn-Zn ferrite. in Processing and Application of Ceramics. 2017;11(2):160-169.
doi:10.2298/PAC1702160M .

Milutinov, Miodrag M., Nikolić, Maria Vesna, Luković, Snežana, Blaz, Nelu V., Labus, Nebojša J., Aleksić, Obrad, Živanov, Ljiljana D, "Influence of starting powder milling on magnetic properties of Mn-Zn ferrite" in Processing and Application of Ceramics, 11, no. 2 (2017):160-169,
https://doi.org/10.2298/PAC1702160M . .

TY  - CONF
AU  - Vasiljević, Zorka Z
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, 2016, 45-45
T1  - Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1109
ER  - 

@conference{
author = "Vasiljević, Zorka Z 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, 2016, 45-45",
title = "Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1109"
}

Vasiljević, Z. Z., 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. in Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade, 2016, 45-45
Belgrade : Institute of Technical Sciences of the Serbian Academz of Sciences and Arts..
https://hdl.handle.net/21.15107/rcub_rimsi_1109

Vasiljević ZZ, Aleksić OS, Luković MD, Vujković M, Pavlović VB, Labus N, Nikolić MV. Fabrication, characterization and photoelectrochemical behavior of Fe2TiO5 screen printed thick films. in Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade, 2016, 45-45. 2016;.
https://hdl.handle.net/21.15107/rcub_rimsi_1109 .

Vasiljević, Zorka Z, 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" in Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade, 2016, 45-45 (2016),
https://hdl.handle.net/21.15107/rcub_rimsi_1109 .

TY  - JOUR
AU  - Milutinov, Miodrag M.
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub
AU  - Blaz, Nelu V.
AU  - Labus, Nebojša J.
AU  - Živanov, Ljiljana D
AU  - Aleksić, Obrad
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1013
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 A degrees 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 A degrees C.
PB  - Springer, Dordrecht
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
EP  - 11865
IS  - 11
SP  - 11856
VL  - 27
DO  - 10.1007/s10854-016-5328-1
ER  - 

@article{
author = "Milutinov, Miodrag M. and Nikolić, Maria Vesna and Luković, Miloljub and Blaz, Nelu V. and Labus, Nebojša J. and Živanov, Ljiljana D and Aleksić, Obrad",
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 A degrees 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 A degrees C.",
publisher = "Springer, Dordrecht",
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 = "11865-11856",
number = "11",
volume = "27",
doi = "10.1007/s10854-016-5328-1"
}

Milutinov, M. M., Nikolić, M. V., Luković, M., Blaz, N. V., Labus, N. J., Živanov, L. D.,& Aleksić, O.. (2016). Influence of starting powder milling on structural properties, complex impedance, electrical conductivity and permeability of Mn-Zn ferrite. in Journal of Materials Science-Materials in Electronics
Springer, Dordrecht., 27(11), 11856-11865.
https://doi.org/10.1007/s10854-016-5328-1

Milutinov MM, Nikolić MV, Luković M, Blaz NV, Labus NJ, Živanov LD, Aleksić O. Influence of starting powder milling on structural properties, complex impedance, electrical conductivity and permeability of Mn-Zn ferrite. in Journal of Materials Science-Materials in Electronics. 2016;27(11):11856-11865.
doi:10.1007/s10854-016-5328-1 .

Milutinov, Miodrag M., Nikolić, Maria Vesna, Luković, Miloljub, Blaz, Nelu V., Labus, Nebojša J., Živanov, Ljiljana D, Aleksić, Obrad, "Influence of starting powder milling on structural properties, complex impedance, electrical conductivity and permeability of Mn-Zn ferrite" in Journal of Materials Science-Materials in Electronics, 27, no. 11 (2016):11856-11865,
https://doi.org/10.1007/s10854-016-5328-1 . .

TY  - CONF
AU  - Vasiljević, Zorka Z
AU  - Vasiljević-Radović, Dana
AU  - Nikolić, Maria Vesna
AU  - Labus, Nebojša J.
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/15426
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1634
AB  - Metastabile nanopowder ZnTiO3 pressed into cylindrical compacts at 200 MPa was submitted to conventional heating with isothermal holding at 931oC for 10 minutes, 25 minutes and 40 minutes. Same compacts were heated with two-step sintering schedule with maximal 912oC and isothermal holding at 896oC, for approximately the same holding times as with isothermal. Shrinkage during heating was monitored with dilatometric device, while microstructure was determined with atomic force microscopy. XRD patterns were collected for the most prominent samples. Sintered specimens microstructure showed differences introduced during last sintering stage by two heating schedules.
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia
T1  - Two step sintering of the ZnTiO3 nanopowder
EP  - 101
SP  - 101
UR  - https://hdl.handle.net/21.15107/rcub_dais_15426
ER  - 

@conference{
editor = "Matović, Branko, Branković, Zorica, Bučevac, Dušan, Srdić, Vladimir",
author = "Vasiljević, Zorka Z and Vasiljević-Radović, Dana and Nikolić, Maria Vesna and Labus, Nebojša J.",
year = "2015",
abstract = "Metastabile nanopowder ZnTiO3 pressed into cylindrical compacts at 200 MPa was submitted to conventional heating with isothermal holding at 931oC for 10 minutes, 25 minutes and 40 minutes. Same compacts were heated with two-step sintering schedule with maximal 912oC and isothermal holding at 896oC, for approximately the same holding times as with isothermal. Shrinkage during heating was monitored with dilatometric device, while microstructure was determined with atomic force microscopy. XRD patterns were collected for the most prominent samples. Sintered specimens microstructure showed differences introduced during last sintering stage by two heating schedules.",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia",
title = "Two step sintering of the ZnTiO3 nanopowder",
pages = "101-101",
url = "https://hdl.handle.net/21.15107/rcub_dais_15426"
}

Matović, B., Branković, Z., Bučevac, D., Srdić, V., Vasiljević, Z. Z., Vasiljević-Radović, D., Nikolić, M. V.,& Labus, N. J.. (2015). Two step sintering of the ZnTiO3 nanopowder. in Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 101-101.
https://hdl.handle.net/21.15107/rcub_dais_15426

Matović B, Branković Z, Bučevac D, Srdić V, Vasiljević ZZ, Vasiljević-Radović D, Nikolić MV, Labus NJ. Two step sintering of the ZnTiO3 nanopowder. in Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia. 2015;:101-101.
https://hdl.handle.net/21.15107/rcub_dais_15426 .

Matović, Branko, Branković, Zorica, Bučevac, Dušan, Srdić, Vladimir, Vasiljević, Zorka Z, Vasiljević-Radović, Dana, Nikolić, Maria Vesna, Labus, Nebojša J., "Two step sintering of the ZnTiO3 nanopowder" in Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia (2015):101-101,
https://hdl.handle.net/21.15107/rcub_dais_15426 .

TY  - CONF
AU  - Vasiljević, Zorka Z
AU  - Nikolić, Maria Vesna
AU  - Aleksić, Obrad S.
AU  - Labus, Nebojša J.
AU  - Luković, Miloljub
AU  - Marković, Smilja
AU  - Nikolić, Pantelija M.
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/15425
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1633
AB  - Starting powders of TiO2 (anatase) and Fe2O3 (hematite) were mixed in the molar ratio 1:1. Pseudobrookite powder was obtained by a combined milling/calcination procedure. Particle size distribution was analyzed on a laser particle size analyzer and correlated with XRD and SEM analysis. The band gap was determined using UV/Vis spectroscopy. Green samples were sintered in a dilatometer and at 1000oC for 2h in air. Thermal diffusivity was determined from photoacoustic measurements. Electrical conductivity measurements were performed. The aim was to obtain pseudobrookite with properties suitable for polymer paste for thick films to be applied as gas sensors.
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia
T1  - Structural and Electronic Properties of Pseudobrookite
EP  - 99
SP  - 98
UR  - https://hdl.handle.net/21.15107/rcub_dais_15425
ER  - 

@conference{
author = "Vasiljević, Zorka Z and Nikolić, Maria Vesna and Aleksić, Obrad S. and Labus, Nebojša J. and Luković, Miloljub and Marković, Smilja and Nikolić, Pantelija M.",
year = "2015",
abstract = "Starting powders of TiO2 (anatase) and Fe2O3 (hematite) were mixed in the molar ratio 1:1. Pseudobrookite powder was obtained by a combined milling/calcination procedure. Particle size distribution was analyzed on a laser particle size analyzer and correlated with XRD and SEM analysis. The band gap was determined using UV/Vis spectroscopy. Green samples were sintered in a dilatometer and at 1000oC for 2h in air. Thermal diffusivity was determined from photoacoustic measurements. Electrical conductivity measurements were performed. The aim was to obtain pseudobrookite with properties suitable for polymer paste for thick films to be applied as gas sensors.",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia",
title = "Structural and Electronic Properties of Pseudobrookite",
pages = "99-98",
url = "https://hdl.handle.net/21.15107/rcub_dais_15425"
}

Vasiljević, Z. Z., Nikolić, M. V., Aleksić, O. S., Labus, N. J., Luković, M., Marković, S.,& Nikolić, P. M.. (2015). Structural and Electronic Properties of Pseudobrookite. in Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 98-99.
https://hdl.handle.net/21.15107/rcub_dais_15425

Vasiljević ZZ, Nikolić MV, Aleksić OS, Labus NJ, Luković M, Marković S, Nikolić PM. Structural and Electronic Properties of Pseudobrookite. in Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia. 2015;:98-99.
https://hdl.handle.net/21.15107/rcub_dais_15425 .

Vasiljević, Zorka Z, Nikolić, Maria Vesna, Aleksić, Obrad S., Labus, Nebojša J., Luković, Miloljub, Marković, Smilja, Nikolić, Pantelija M., "Structural and Electronic Properties of Pseudobrookite" in Programme and the Book of Abstracts / 3rd Conference of the Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia (2015):98-99,
https://hdl.handle.net/21.15107/rcub_dais_15425 .

TY  - JOUR
AU  - Labus, Nebojša J.
AU  - Mentus, S.
AU  - Rakic, S.
AU  - Đurić, Zorka Z
AU  - Vujančević, Jelena
AU  - Nikolić, Maria Vesna
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/845
AB  - The scope of this work was observing dimensional and heat transfer changes in ZnTiO3 samples during heating in nitrogen and air atmosphere. Interactions of bulk specimens with gaseous surrounding induce microstructure changes during heating. Sintered ZnTiO3 nanopowder samples were submitted to subsequent heating. Dilatation curves and thermogravimetric with simultaneous differential thermal analysis TGA/DTA curves were recorded. Reheating was performed in air and nitrogen atmospheres. Reheated samples obtained at different characteristic temperatures in air were analyzed by X-ray diffraction (XRD). Microstructures obtained by scanning electron microscopy (SEM) of reheated sintered samples are presented and compared. Reheating in a different atmosphere induced different microstructures. The goal was indicating possible causes leading to the microstructure changes.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Reheating of Zinc-titanate Sintered Specimens
EP  - 81
IS  - 1
SP  - 71
VL  - 47
DO  - 10.2298/SOS1501071L
ER  - 

@article{
author = "Labus, Nebojša J. and Mentus, S. and Rakic, S. and Đurić, Zorka Z and Vujančević, Jelena and Nikolić, Maria Vesna",
year = "2015",
abstract = "The scope of this work was observing dimensional and heat transfer changes in ZnTiO3 samples during heating in nitrogen and air atmosphere. Interactions of bulk specimens with gaseous surrounding induce microstructure changes during heating. Sintered ZnTiO3 nanopowder samples were submitted to subsequent heating. Dilatation curves and thermogravimetric with simultaneous differential thermal analysis TGA/DTA curves were recorded. Reheating was performed in air and nitrogen atmospheres. Reheated samples obtained at different characteristic temperatures in air were analyzed by X-ray diffraction (XRD). Microstructures obtained by scanning electron microscopy (SEM) of reheated sintered samples are presented and compared. Reheating in a different atmosphere induced different microstructures. The goal was indicating possible causes leading to the microstructure changes.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Reheating of Zinc-titanate Sintered Specimens",
pages = "81-71",
number = "1",
volume = "47",
doi = "10.2298/SOS1501071L"
}

Labus, N. J., Mentus, S., Rakic, S., Đurić, Z. Z., Vujančević, J.,& Nikolić, M. V.. (2015). Reheating of Zinc-titanate Sintered Specimens. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 47(1), 71-81.
https://doi.org/10.2298/SOS1501071L

Labus NJ, Mentus S, Rakic S, Đurić ZZ, Vujančević J, Nikolić MV. Reheating of Zinc-titanate Sintered Specimens. in Science of Sintering. 2015;47(1):71-81.
doi:10.2298/SOS1501071L .

Labus, Nebojša J., Mentus, S., Rakic, S., Đurić, Zorka Z, Vujančević, Jelena, Nikolić, Maria Vesna, "Reheating of Zinc-titanate Sintered Specimens" in Science of Sintering, 47, no. 1 (2015):71-81,
https://doi.org/10.2298/SOS1501071L . .

TY  - JOUR
AU  - Vasiljević, Zorka Z
AU  - Aleksić, Obrad
AU  - Nikolić, Maria Vesna
AU  - Labus, Nebojša J.
AU  - Radovanović, Milan
AU  - Luković, Miloljub
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/783
AB  - Starting nanopowders of TiO2 (anatase 99.7%) and alpha-Fe2O3 (hematite) were mixed in the weight ratios 60:40 and 40:60. Green samples were sintered in the temperature range 750-1250 degrees C in air. Structural, morphological and electrical studies were carried out using XRD, SEM and EDS analysis, Hall measurements and electrical conductivity measurements. The aim was analyzing the influence of the starting nanopowder structure on the resulting sample composition, density, grain size and electrical resistivity in view of tailoring properties for developing different applications such as anodes for photoelectrochemical cells, photocatalysts and gas sensors. Compared to pure anatase samples, the presence of hematite lowered the temperature of completion of the anatase to rutile phase transformation to 850 degrees C. Formation of pseudobrookite was also noted at this temperature. Higher sintering temperatures lead to increased sample density, changes in grain size (grain growth and inhomogenous microstructure) and decreased electric resistivity.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Structural and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures
EP  - 15141
IS  - 9
SP  - 15131
VL  - 40
DO  - 10.1016/j.ceramint.2014.06.126
ER  - 

@article{
author = "Vasiljević, Zorka Z and Aleksić, Obrad and Nikolić, Maria Vesna and Labus, Nebojša J. and Radovanović, Milan and Luković, Miloljub",
year = "2014",
abstract = "Starting nanopowders of TiO2 (anatase 99.7%) and alpha-Fe2O3 (hematite) were mixed in the weight ratios 60:40 and 40:60. Green samples were sintered in the temperature range 750-1250 degrees C in air. Structural, morphological and electrical studies were carried out using XRD, SEM and EDS analysis, Hall measurements and electrical conductivity measurements. The aim was analyzing the influence of the starting nanopowder structure on the resulting sample composition, density, grain size and electrical resistivity in view of tailoring properties for developing different applications such as anodes for photoelectrochemical cells, photocatalysts and gas sensors. Compared to pure anatase samples, the presence of hematite lowered the temperature of completion of the anatase to rutile phase transformation to 850 degrees C. Formation of pseudobrookite was also noted at this temperature. Higher sintering temperatures lead to increased sample density, changes in grain size (grain growth and inhomogenous microstructure) and decreased electric resistivity.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Structural and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures",
pages = "15141-15131",
number = "9",
volume = "40",
doi = "10.1016/j.ceramint.2014.06.126"
}

Vasiljević, Z. Z., Aleksić, O., Nikolić, M. V., Labus, N. J., Radovanović, M.,& Luković, M.. (2014). Structural and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures. in Ceramics International
Elsevier Sci Ltd, Oxford., 40(9), 15131-15141.
https://doi.org/10.1016/j.ceramint.2014.06.126

Vasiljević ZZ, Aleksić O, Nikolić MV, Labus NJ, Radovanović M, Luković M. Structural and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures. in Ceramics International. 2014;40(9):15131-15141.
doi:10.1016/j.ceramint.2014.06.126 .

Vasiljević, Zorka Z, Aleksić, Obrad, Nikolić, Maria Vesna, Labus, Nebojša J., Radovanović, Milan, Luković, Miloljub, "Structural and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures" in Ceramics International, 40, no. 9 (2014):15131-15141,
https://doi.org/10.1016/j.ceramint.2014.06.126 . .

TY  - JOUR
AU  - Labus, Nebojša J.
AU  - Mentus, S.
AU  - Đurić, Zorka Z
AU  - Nikolić, Maria Vesna
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/748
AB  - The influence of air and nitrogen atmosphere during heating on TiO2 nano and micro sized powders as well as sintered polycrystalline specimens was analyzed. Sintering of TiO2 nano and micro powders in air atmosphere was monitored in a dilatometer. Non compacted nano and micro powders were analyzed separately in air and nitrogen atmospheres during heating using thermo gravimetric (TG) and differential thermal analysis (DTA). The anatase to rutile phase transition temperature interval is influenced by the powder particle size and atmosphere change. At lower temperatures for nano TiO2 powder a second order phase transition was detected by both thermal techniques. Polycrystalline specimens obtained by sintering from nano powders were reheated in the dilatometer in nitrogen and air atmosphere, and their shrinkage is found to be different. Powder particle size influence, as well as the air and nitrogen atmosphere influence was discussed.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Influence of Nitrogen and Air Atmosphere During Thermal Treatment on Micro and Nano Sized Powders and Sintered TiO2 Specimens
EP  - 375
IS  - 3
SP  - 365
VL  - 46
DO  - 10.2298/SOS1403365L
ER  - 

@article{
author = "Labus, Nebojša J. and Mentus, S. and Đurić, Zorka Z and Nikolić, Maria Vesna",
year = "2014",
abstract = "The influence of air and nitrogen atmosphere during heating on TiO2 nano and micro sized powders as well as sintered polycrystalline specimens was analyzed. Sintering of TiO2 nano and micro powders in air atmosphere was monitored in a dilatometer. Non compacted nano and micro powders were analyzed separately in air and nitrogen atmospheres during heating using thermo gravimetric (TG) and differential thermal analysis (DTA). The anatase to rutile phase transition temperature interval is influenced by the powder particle size and atmosphere change. At lower temperatures for nano TiO2 powder a second order phase transition was detected by both thermal techniques. Polycrystalline specimens obtained by sintering from nano powders were reheated in the dilatometer in nitrogen and air atmosphere, and their shrinkage is found to be different. Powder particle size influence, as well as the air and nitrogen atmosphere influence was discussed.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Influence of Nitrogen and Air Atmosphere During Thermal Treatment on Micro and Nano Sized Powders and Sintered TiO2 Specimens",
pages = "375-365",
number = "3",
volume = "46",
doi = "10.2298/SOS1403365L"
}

Labus, N. J., Mentus, S., Đurić, Z. Z.,& Nikolić, M. V.. (2014). Influence of Nitrogen and Air Atmosphere During Thermal Treatment on Micro and Nano Sized Powders and Sintered TiO2 Specimens. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 46(3), 365-375.
https://doi.org/10.2298/SOS1403365L

Labus NJ, Mentus S, Đurić ZZ, Nikolić MV. Influence of Nitrogen and Air Atmosphere During Thermal Treatment on Micro and Nano Sized Powders and Sintered TiO2 Specimens. in Science of Sintering. 2014;46(3):365-375.
doi:10.2298/SOS1403365L .

Labus, Nebojša J., Mentus, S., Đurić, Zorka Z, Nikolić, Maria Vesna, "Influence of Nitrogen and Air Atmosphere During Thermal Treatment on Micro and Nano Sized Powders and Sintered TiO2 Specimens" in Science of Sintering, 46, no. 3 (2014):365-375,
https://doi.org/10.2298/SOS1403365L . .

TY  - CONF
AU  - Labus, Nebojša J.
AU  - Krstić, Jugoslav
AU  - Peleš, Adriana
AU  - Živojinović, Jelena
AU  - Nikolić, Maria Vesna
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1639
AB  - Nanopowder density, as well as compact density, is due to powder particle size, different in their values, compared to micron powders. Also, the technique used for density determination induces large mutual value discrepancies. Scanning electron micrographs of as received powder are presented as an illustration of the shape and size of powder particles and agglomerates. The density of the loose powder pretreated differently was determined using mercury porosimetry and He pycnometry. The methods used for determining the apparent density of the compacts were pycnometry with water as the wetting liquid, mercury porosimetry and also a new approach using a combination of mercury pycnometry along with nitrogen adsorption. Bulk densities of compacts were determined by dimension measurement and mercury pycnometry. Conclusions about nanopowder usage as a charge for dry compaction as well as the most appropriate way for the determination of compact and powder densities are shown.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
T1  - Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods
EP  - 18
SP  - 18
UR  - https://hdl.handle.net/21.15107/rcub_dais_411
ER  - 

@conference{
author = "Labus, Nebojša J. and Krstić, Jugoslav and Peleš, Adriana and Živojinović, Jelena and Nikolić, Maria Vesna",
year = "2013",
abstract = "Nanopowder density, as well as compact density, is due to powder particle size, different in their values, compared to micron powders. Also, the technique used for density determination induces large mutual value discrepancies. Scanning electron micrographs of as received powder are presented as an illustration of the shape and size of powder particles and agglomerates. The density of the loose powder pretreated differently was determined using mercury porosimetry and He pycnometry. The methods used for determining the apparent density of the compacts were pycnometry with water as the wetting liquid, mercury porosimetry and also a new approach using a combination of mercury pycnometry along with nitrogen adsorption. Bulk densities of compacts were determined by dimension measurement and mercury pycnometry. Conclusions about nanopowder usage as a charge for dry compaction as well as the most appropriate way for the determination of compact and powder densities are shown.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade",
title = "Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods",
pages = "18-18",
url = "https://hdl.handle.net/21.15107/rcub_dais_411"
}

Labus, N. J., Krstić, J., Peleš, A., Živojinović, J.,& Nikolić, M. V.. (2013). Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
Belgrade : Serbian Ceramic Society., 18-18.
https://hdl.handle.net/21.15107/rcub_dais_411

Labus NJ, Krstić J, Peleš A, Živojinović J, Nikolić MV. Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade. 2013;:18-18.
https://hdl.handle.net/21.15107/rcub_dais_411 .

Labus, Nebojša J., Krstić, Jugoslav, Peleš, Adriana, Živojinović, Jelena, Nikolić, Maria Vesna, "Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade (2013):18-18,
https://hdl.handle.net/21.15107/rcub_dais_411 .

TY  - JOUR
AU  - Labus, Nebojša J.
AU  - Krstic, Jelena D
AU  - Marković, Smilja
AU  - Vasiljević-Radović, Dana
AU  - Nikolić, Maria Vesna
AU  - Pavlović, Vera P.
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/667
AB  - ZnTiO3 nanopowder as a constitutive component in compact production was primarily characterised. Scanning electron micrographs of as received powder were recorded. Mercury porosimetry and nitrogen adsorption were also performed on loose powder. Particle size distribution in a water powder suspension was determined with a laser particle size analyser. Compaction was performed on different pressures in a range from 100 to 400 MPa using the uniaxial double sided compaction technique without binder and lubricant. Micrographs of compacted specimens were obtained using scanning electron microscopy and atomic force microscopy. Pore size distribution was also determined by mercury porosimetry and nitrogen adsorption. Results revealed that with increasing pressure during compaction interagglomerate pores diminish in size until they reach some critical diameter related to the intra-agglomerate pore size.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - ZnTiO3 Ceramic Nanopowder Microstructure Changes During Compaction
EP  - 221
IS  - 2
SP  - 209
VL  - 45
DO  - 10.2298/SOS1302209L
ER  - 

@article{
author = "Labus, Nebojša J. and Krstic, Jelena D and Marković, Smilja and Vasiljević-Radović, Dana and Nikolić, Maria Vesna and Pavlović, Vera P.",
year = "2013",
abstract = "ZnTiO3 nanopowder as a constitutive component in compact production was primarily characterised. Scanning electron micrographs of as received powder were recorded. Mercury porosimetry and nitrogen adsorption were also performed on loose powder. Particle size distribution in a water powder suspension was determined with a laser particle size analyser. Compaction was performed on different pressures in a range from 100 to 400 MPa using the uniaxial double sided compaction technique without binder and lubricant. Micrographs of compacted specimens were obtained using scanning electron microscopy and atomic force microscopy. Pore size distribution was also determined by mercury porosimetry and nitrogen adsorption. Results revealed that with increasing pressure during compaction interagglomerate pores diminish in size until they reach some critical diameter related to the intra-agglomerate pore size.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "ZnTiO3 Ceramic Nanopowder Microstructure Changes During Compaction",
pages = "221-209",
number = "2",
volume = "45",
doi = "10.2298/SOS1302209L"
}

Labus, N. J., Krstic, J. D., Marković, S., Vasiljević-Radović, D., Nikolić, M. V.,& Pavlović, V. P.. (2013). ZnTiO3 Ceramic Nanopowder Microstructure Changes During Compaction. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 45(2), 209-221.
https://doi.org/10.2298/SOS1302209L

Labus NJ, Krstic JD, Marković S, Vasiljević-Radović D, Nikolić MV, Pavlović VP. ZnTiO3 Ceramic Nanopowder Microstructure Changes During Compaction. in Science of Sintering. 2013;45(2):209-221.
doi:10.2298/SOS1302209L .

Labus, Nebojša J., Krstic, Jelena D, Marković, Smilja, Vasiljević-Radović, Dana, Nikolić, Maria Vesna, Pavlović, Vera P., "ZnTiO3 Ceramic Nanopowder Microstructure Changes During Compaction" in Science of Sintering, 45, no. 2 (2013):209-221,
https://doi.org/10.2298/SOS1302209L . .