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NSF CRESTNational Science Foundation (NSF)NSF- Directorate for Education & Human Resources (EHR) [HRD-0833184]

Authors

Publications

Synthesis and characterization of BaTiO3/α-Fe2O3 core/shell structure

Filipović, Suzana; Pavlović, Vera P.; Mitrić, Miodrag; Lević, Steva; Mitrović, Nebojša; Maricić, Aleksa; Vlahović, Branislav; Pavlović, Vladimir

(Springeropen, London, 2019)

TY  - JOUR
AU  - Filipović, Suzana
AU  - Pavlović, Vera P.
AU  - Mitrić, Miodrag
AU  - Lević, Steva
AU  - Mitrović, Nebojša
AU  - Maricić, Aleksa
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5111
AB  - Multiferroic materials attracted a lot of attention in recent years because of their significant
scientific interest and technological applications. The multiferroic core/shell powders have a better
connectivity between the phases, resulting in superior dielectric and magneto electric properties. In
this study, the influence of preparation condition on structure and properties of BaTiO3/α-Fe2O3
core/shell composite materials was examined. The five samples were obtained by varying synthesis
conditions, such as synthesized method (co-precipitation and sonochemical method) and pH values of
solution. XRD and Raman spectroscopy analyses were performed in order to determine phase
composition and structural changes within samples. Morphology modifications were examined by
SEM and EDS analyses. Finally, effect of structural and microstructural changes on magnetic and
electrical properties was detected and explained.
PB  - Springeropen, London
T2  - Journal of Advanced Ceramics
T1  - Synthesis and characterization of BaTiO3/α-Fe2O3 core/shell structure
EP  - 147
IS  - 1
SP  - 133
VL  - 8
DO  - 10.1007/s40145-018-0301-5
ER  - 
@article{
author = "Filipović, Suzana and Pavlović, Vera P. and Mitrić, Miodrag and Lević, Steva and Mitrović, Nebojša and Maricić, Aleksa and Vlahović, Branislav and Pavlović, Vladimir",
year = "2019",
abstract = "Multiferroic materials attracted a lot of attention in recent years because of their significant
scientific interest and technological applications. The multiferroic core/shell powders have a better
connectivity between the phases, resulting in superior dielectric and magneto electric properties. In
this study, the influence of preparation condition on structure and properties of BaTiO3/α-Fe2O3
core/shell composite materials was examined. The five samples were obtained by varying synthesis
conditions, such as synthesized method (co-precipitation and sonochemical method) and pH values of
solution. XRD and Raman spectroscopy analyses were performed in order to determine phase
composition and structural changes within samples. Morphology modifications were examined by
SEM and EDS analyses. Finally, effect of structural and microstructural changes on magnetic and
electrical properties was detected and explained.",
publisher = "Springeropen, London",
journal = "Journal of Advanced Ceramics",
title = "Synthesis and characterization of BaTiO3/α-Fe2O3 core/shell structure",
pages = "147-133",
number = "1",
volume = "8",
doi = "10.1007/s40145-018-0301-5"
}
Filipović, S., Pavlović, V. P., Mitrić, M., Lević, S., Mitrović, N., Maricić, A., Vlahović, B.,& Pavlović, V.. (2019). Synthesis and characterization of BaTiO3/α-Fe2O3 core/shell structure. in Journal of Advanced Ceramics
Springeropen, London., 8(1), 133-147.
https://doi.org/10.1007/s40145-018-0301-5
Filipović S, Pavlović VP, Mitrić M, Lević S, Mitrović N, Maricić A, Vlahović B, Pavlović V. Synthesis and characterization of BaTiO3/α-Fe2O3 core/shell structure. in Journal of Advanced Ceramics. 2019;8(1):133-147.
doi:10.1007/s40145-018-0301-5 .
Filipović, Suzana, Pavlović, Vera P., Mitrić, Miodrag, Lević, Steva, Mitrović, Nebojša, Maricić, Aleksa, Vlahović, Branislav, Pavlović, Vladimir, "Synthesis and characterization of BaTiO3/α-Fe2O3 core/shell structure" in Journal of Advanced Ceramics, 8, no. 1 (2019):133-147,
https://doi.org/10.1007/s40145-018-0301-5 . .
1
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DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells

Dojčilović, Radovan; Pajović, Jelena D.; Božanić, Dušan K.; Jović, Nataša; Pavlović, Vera P.; Pavlović, Vladimir; Lenhardt-Acković, Lea; Zeković, Ivana; Dramicanin, Miroslav D.; Kascakova, Slavka; Refregiers, Matthieu; Rasić, Goran; Vlahović, Branislav; Djoković, Vladimir

(IOP Publishing Ltd, Bristol, 2018)

TY  - JOUR
AU  - Dojčilović, Radovan
AU  - Pajović, Jelena D.
AU  - Božanić, Dušan K.
AU  - Jović, Nataša
AU  - Pavlović, Vera P.
AU  - Pavlović, Vladimir
AU  - Lenhardt-Acković, Lea
AU  - Zeković, Ivana
AU  - Dramicanin, Miroslav D.
AU  - Kascakova, Slavka
AU  - Refregiers, Matthieu
AU  - Rasić, Goran
AU  - Vlahović, Branislav
AU  - Djoković, Vladimir
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4655
AB  - The interaction of partially reduced graphene oxide (prGO) and Huh7.5.1 liver cancer cells was investigated by means of DUV fluorescence bioimaging. The prGO sample was obtained by the reduction (to a certain extent) of the initially prepared graphene oxide (GO) nanosheets with hydrazine. The fluorescence of the GO nanosheets increases with time of the reduction due to a change in ratio of the sp(2) and sp(3) carbon sites and the prGO sample was extracted from the dispersion after 6 min, when the intensity of the fluorescence reached its maximum. The reduction process was left to proceed further to saturation until highly reduced graphene oxide (denoted here as rGO) was obtained. GO, prGO and rGO samples were investigated by structural (scanning electron microscopy (SEM), scanning transmission electron microscopy coupled with energy dispersive spectrometry (STEM-EDS)) and spectroscopic (UV-vis, photoluminescence (PL), Raman) methods. After that, Huh7.5.1 cells were incubated with GO, prGO and rGO nanosheets and used in bioimaging studies, which were performed on DISCO beamline of synchrotron SOLEIL. It was found that the prGO significantly enhanced the fluorescence of the cells and increased the intensity of the signal by similar to 2.5 times. Time-lapse fluorescence microscopy experiments showed that fluorescence dynamics strongly depends on the type of nanosheets used. The obtained prGO nanostructure can be easily conjugated with aromatic ring containing drugs, which opens a possibility for its applications in fluorescence microscopy monitored drug delivery.
PB  - IOP Publishing Ltd, Bristol
T2  - 2d Materials
T1  - DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells
IS  - 4
VL  - 5
DO  - 10.1088/2053-1583/aad72b
ER  - 
@article{
author = "Dojčilović, Radovan and Pajović, Jelena D. and Božanić, Dušan K. and Jović, Nataša and Pavlović, Vera P. and Pavlović, Vladimir and Lenhardt-Acković, Lea and Zeković, Ivana and Dramicanin, Miroslav D. and Kascakova, Slavka and Refregiers, Matthieu and Rasić, Goran and Vlahović, Branislav and Djoković, Vladimir",
year = "2018",
abstract = "The interaction of partially reduced graphene oxide (prGO) and Huh7.5.1 liver cancer cells was investigated by means of DUV fluorescence bioimaging. The prGO sample was obtained by the reduction (to a certain extent) of the initially prepared graphene oxide (GO) nanosheets with hydrazine. The fluorescence of the GO nanosheets increases with time of the reduction due to a change in ratio of the sp(2) and sp(3) carbon sites and the prGO sample was extracted from the dispersion after 6 min, when the intensity of the fluorescence reached its maximum. The reduction process was left to proceed further to saturation until highly reduced graphene oxide (denoted here as rGO) was obtained. GO, prGO and rGO samples were investigated by structural (scanning electron microscopy (SEM), scanning transmission electron microscopy coupled with energy dispersive spectrometry (STEM-EDS)) and spectroscopic (UV-vis, photoluminescence (PL), Raman) methods. After that, Huh7.5.1 cells were incubated with GO, prGO and rGO nanosheets and used in bioimaging studies, which were performed on DISCO beamline of synchrotron SOLEIL. It was found that the prGO significantly enhanced the fluorescence of the cells and increased the intensity of the signal by similar to 2.5 times. Time-lapse fluorescence microscopy experiments showed that fluorescence dynamics strongly depends on the type of nanosheets used. The obtained prGO nanostructure can be easily conjugated with aromatic ring containing drugs, which opens a possibility for its applications in fluorescence microscopy monitored drug delivery.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "2d Materials",
title = "DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells",
number = "4",
volume = "5",
doi = "10.1088/2053-1583/aad72b"
}
Dojčilović, R., Pajović, J. D., Božanić, D. K., Jović, N., Pavlović, V. P., Pavlović, V., Lenhardt-Acković, L., Zeković, I., Dramicanin, M. D., Kascakova, S., Refregiers, M., Rasić, G., Vlahović, B.,& Djoković, V.. (2018). DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells. in 2d Materials
IOP Publishing Ltd, Bristol., 5(4).
https://doi.org/10.1088/2053-1583/aad72b
Dojčilović R, Pajović JD, Božanić DK, Jović N, Pavlović VP, Pavlović V, Lenhardt-Acković L, Zeković I, Dramicanin MD, Kascakova S, Refregiers M, Rasić G, Vlahović B, Djoković V. DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells. in 2d Materials. 2018;5(4).
doi:10.1088/2053-1583/aad72b .
Dojčilović, Radovan, Pajović, Jelena D., Božanić, Dušan K., Jović, Nataša, Pavlović, Vera P., Pavlović, Vladimir, Lenhardt-Acković, Lea, Zeković, Ivana, Dramicanin, Miroslav D., Kascakova, Slavka, Refregiers, Matthieu, Rasić, Goran, Vlahović, Branislav, Djoković, Vladimir, "DUV fluorescence bioimaging study of the interaction of partially reduced graphene oxide and liver cancer cells" in 2d Materials, 5, no. 4 (2018),
https://doi.org/10.1088/2053-1583/aad72b . .
5
4
3

Structure and photocatalytic properties of sintered TiO2 nanotube arrays

Vujancević, Jelena; Bjelajac, Andjelika; Cirković, Jovana; Pavlović, Vera P.; Horvath, Endre; Forro, Laszlo; Vlahović, Branislav; Mitrić, Miodrag; Janacković, Djordje; Pavlović, Vladimir

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2018)

TY  - JOUR
AU  - Vujancević, Jelena
AU  - Bjelajac, Andjelika
AU  - Cirković, Jovana
AU  - Pavlović, Vera P.
AU  - Horvath, Endre
AU  - Forro, Laszlo
AU  - Vlahović, Branislav
AU  - Mitrić, Miodrag
AU  - Janacković, Djordje
AU  - Pavlović, Vladimir
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4714
AB  - One-dimensional (1D) TiO2 nanotubes perpendicular to the substrate were obtained by electrochemical oxidation of titanium foil in an acid electrolyte. In order to alter the crystallinity and the morphology of films the as-anodized amorphous TiO2 nanotube films were sintered at elevated temperatures. The evolution of the morphology was visualized via scanning electron microscopy (SEM), while the crystalline structure was investigated by Xray diffraction (XRD) and Raman spectroscopy. The chemical composition was studied by Xray photoelectron spectroscopy (XPS). The effects of crystallinity and morphology of TiO2 nanotube (NTs) films on photocatalytic degradation of methyl orange (MO) in an aqueous solution under UV light irradiation were also investigated. The TiO2 nanotubes sintered at 650 degrees C for 30 min had the highest degree of crystallinity and exhibited the best photocatalytic activity among the studied TiO2 nanotube films.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Structure and photocatalytic properties of sintered TiO2 nanotube arrays
EP  - 50
IS  - 1
SP  - 39
VL  - 50
DO  - 10.2298/SOS1801039V
ER  - 
@article{
author = "Vujancević, Jelena and Bjelajac, Andjelika and Cirković, Jovana and Pavlović, Vera P. and Horvath, Endre and Forro, Laszlo and Vlahović, Branislav and Mitrić, Miodrag and Janacković, Djordje and Pavlović, Vladimir",
year = "2018",
abstract = "One-dimensional (1D) TiO2 nanotubes perpendicular to the substrate were obtained by electrochemical oxidation of titanium foil in an acid electrolyte. In order to alter the crystallinity and the morphology of films the as-anodized amorphous TiO2 nanotube films were sintered at elevated temperatures. The evolution of the morphology was visualized via scanning electron microscopy (SEM), while the crystalline structure was investigated by Xray diffraction (XRD) and Raman spectroscopy. The chemical composition was studied by Xray photoelectron spectroscopy (XPS). The effects of crystallinity and morphology of TiO2 nanotube (NTs) films on photocatalytic degradation of methyl orange (MO) in an aqueous solution under UV light irradiation were also investigated. The TiO2 nanotubes sintered at 650 degrees C for 30 min had the highest degree of crystallinity and exhibited the best photocatalytic activity among the studied TiO2 nanotube films.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Structure and photocatalytic properties of sintered TiO2 nanotube arrays",
pages = "50-39",
number = "1",
volume = "50",
doi = "10.2298/SOS1801039V"
}
Vujancević, J., Bjelajac, A., Cirković, J., Pavlović, V. P., Horvath, E., Forro, L., Vlahović, B., Mitrić, M., Janacković, D.,& Pavlović, V.. (2018). Structure and photocatalytic properties of sintered TiO2 nanotube arrays. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 50(1), 39-50.
https://doi.org/10.2298/SOS1801039V
Vujancević J, Bjelajac A, Cirković J, Pavlović VP, Horvath E, Forro L, Vlahović B, Mitrić M, Janacković D, Pavlović V. Structure and photocatalytic properties of sintered TiO2 nanotube arrays. in Science of Sintering. 2018;50(1):39-50.
doi:10.2298/SOS1801039V .
Vujancević, Jelena, Bjelajac, Andjelika, Cirković, Jovana, Pavlović, Vera P., Horvath, Endre, Forro, Laszlo, Vlahović, Branislav, Mitrić, Miodrag, Janacković, Djordje, Pavlović, Vladimir, "Structure and photocatalytic properties of sintered TiO2 nanotube arrays" in Science of Sintering, 50, no. 1 (2018):39-50,
https://doi.org/10.2298/SOS1801039V . .
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9
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Influence of mechanical activation on functional properties of barium hexaferrite ceramics

Kosanović, Darko; Blagojević, Vladimir A.; Maricić, A.; Aleksić, S.; Pavlović, Vera P.; Pavlović, Vladimir; Vlahović, Branislav

(Elsevier Sci Ltd, Oxford, 2018)

TY  - JOUR
AU  - Kosanović, Darko
AU  - Blagojević, Vladimir A.
AU  - Maricić, A.
AU  - Aleksić, S.
AU  - Pavlović, Vera P.
AU  - Pavlović, Vladimir
AU  - Vlahović, Branislav
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4755
AB  - Barium hexaferrite ceramics were prepared using mechanically activated mixtures of iron and barium titanate. The 60:40 mass% Fe:BaTiO3 powder mixtures were mechanically activated for different times (100-240 min) and sintered at 1100 and 1200 degrees C in order to determine the influence of mechanical activation of the precursor on the magnetic and dielectric properties of the resulting barium hexaferrite ceramics. The final product contained 84-89 mass% of Ba2Fe22.46O38Ti1.54 phase, with higher content corresponding to longer mechanical activation of the precursor. XRD and Raman measurements indicated that the remainder of the sample consists of leftover BaTiO3 and hematite, which was formed by the oxidation of iron during mechanical activation and sintering in air. Magnetic properties of samples sintered at 1200 degrees C are superior to those sintered at 1100 degrees C, which can be attributed to higher Ba2Fe22.46O38Ti1.54 phase content. The position of the Curie temperature in 350-420 degrees C temperature region is consistent with 0.8:1 ratio of Ti to Ba. Maximum magnetization was observed for samples activated for 120 min. Dielectric properties of samples sintered at 1200 degrees C showed a dependence on frequency, with a significant drop in relative permittivity with an increase in frequency in the low-frequency region, and relatively constant values of relative permittivity in the high-frequency region. The tangent loss showed a decrease with increase in frequency, where peaks corresponding to the resonance of the electron hopping frequency with the external field were observed in the samples corresponding to the longer mechanical activation. Dielectric properties showed relatively small changes for samples activated longer than 150 min.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Influence of mechanical activation on functional properties of barium hexaferrite ceramics
EP  - 6672
IS  - 6
SP  - 6666
VL  - 44
DO  - 10.1016/j.ceramint.2018.01.078
ER  - 
@article{
author = "Kosanović, Darko and Blagojević, Vladimir A. and Maricić, A. and Aleksić, S. and Pavlović, Vera P. and Pavlović, Vladimir and Vlahović, Branislav",
year = "2018",
abstract = "Barium hexaferrite ceramics were prepared using mechanically activated mixtures of iron and barium titanate. The 60:40 mass% Fe:BaTiO3 powder mixtures were mechanically activated for different times (100-240 min) and sintered at 1100 and 1200 degrees C in order to determine the influence of mechanical activation of the precursor on the magnetic and dielectric properties of the resulting barium hexaferrite ceramics. The final product contained 84-89 mass% of Ba2Fe22.46O38Ti1.54 phase, with higher content corresponding to longer mechanical activation of the precursor. XRD and Raman measurements indicated that the remainder of the sample consists of leftover BaTiO3 and hematite, which was formed by the oxidation of iron during mechanical activation and sintering in air. Magnetic properties of samples sintered at 1200 degrees C are superior to those sintered at 1100 degrees C, which can be attributed to higher Ba2Fe22.46O38Ti1.54 phase content. The position of the Curie temperature in 350-420 degrees C temperature region is consistent with 0.8:1 ratio of Ti to Ba. Maximum magnetization was observed for samples activated for 120 min. Dielectric properties of samples sintered at 1200 degrees C showed a dependence on frequency, with a significant drop in relative permittivity with an increase in frequency in the low-frequency region, and relatively constant values of relative permittivity in the high-frequency region. The tangent loss showed a decrease with increase in frequency, where peaks corresponding to the resonance of the electron hopping frequency with the external field were observed in the samples corresponding to the longer mechanical activation. Dielectric properties showed relatively small changes for samples activated longer than 150 min.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Influence of mechanical activation on functional properties of barium hexaferrite ceramics",
pages = "6672-6666",
number = "6",
volume = "44",
doi = "10.1016/j.ceramint.2018.01.078"
}
Kosanović, D., Blagojević, V. A., Maricić, A., Aleksić, S., Pavlović, V. P., Pavlović, V.,& Vlahović, B.. (2018). Influence of mechanical activation on functional properties of barium hexaferrite ceramics. in Ceramics International
Elsevier Sci Ltd, Oxford., 44(6), 6666-6672.
https://doi.org/10.1016/j.ceramint.2018.01.078
Kosanović D, Blagojević VA, Maricić A, Aleksić S, Pavlović VP, Pavlović V, Vlahović B. Influence of mechanical activation on functional properties of barium hexaferrite ceramics. in Ceramics International. 2018;44(6):6666-6672.
doi:10.1016/j.ceramint.2018.01.078 .
Kosanović, Darko, Blagojević, Vladimir A., Maricić, A., Aleksić, S., Pavlović, Vera P., Pavlović, Vladimir, Vlahović, Branislav, "Influence of mechanical activation on functional properties of barium hexaferrite ceramics" in Ceramics International, 44, no. 6 (2018):6666-6672,
https://doi.org/10.1016/j.ceramint.2018.01.078 . .
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A high-sensitive current-mode pressure/force detector based on piezoelectric polymer PVDF

Petrović, Predrag B.; Pavlović, Vladimir; Vlahović, Branislav; Mijailović, Vladica

(Elsevier Science Sa, Lausanne, 2018)

TY  - JOUR
AU  - Petrović, Predrag B.
AU  - Pavlović, Vladimir
AU  - Vlahović, Branislav
AU  - Mijailović, Vladica
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4791
AB  - This paper introduces new electronic sensor circuits based on the usage of a piezoelectric Polyvinylidene fluoride-PVDF pressure detector coupled with a current-mode instrumentation amplifier, Schmitt comparator, and only grounded resistors. Pressure/force is measured in terms of the charge generated by the PVDF element as a result of the direct piezoelectric effect. The experimental test results demonstrated that the dynamic pressure response, the sensitivity and linearity of the designed sensor were higher than the sensitivity and linearity of a traditional piezoelectric sensor. The sensitivity of the PVDF sensor was 0.08 mV/Pa. The detector is calibrated over a frequency range of 1 Hz-1 kHz. The proposed signal conditioning electronics offer a potential for future miniaturization in order to be integrated with different commercial devices, for detecting certain tiny activities including finger movements, robotics and smart electronic devices.
PB  - Elsevier Science Sa, Lausanne
T2  - Sensors and Actuators A-Physical
T1  - A high-sensitive current-mode pressure/force detector based on piezoelectric polymer PVDF
EP  - 175
SP  - 165
VL  - 276
DO  - 10.1016/j.sna.2018.04.014
ER  - 
@article{
author = "Petrović, Predrag B. and Pavlović, Vladimir and Vlahović, Branislav and Mijailović, Vladica",
year = "2018",
abstract = "This paper introduces new electronic sensor circuits based on the usage of a piezoelectric Polyvinylidene fluoride-PVDF pressure detector coupled with a current-mode instrumentation amplifier, Schmitt comparator, and only grounded resistors. Pressure/force is measured in terms of the charge generated by the PVDF element as a result of the direct piezoelectric effect. The experimental test results demonstrated that the dynamic pressure response, the sensitivity and linearity of the designed sensor were higher than the sensitivity and linearity of a traditional piezoelectric sensor. The sensitivity of the PVDF sensor was 0.08 mV/Pa. The detector is calibrated over a frequency range of 1 Hz-1 kHz. The proposed signal conditioning electronics offer a potential for future miniaturization in order to be integrated with different commercial devices, for detecting certain tiny activities including finger movements, robotics and smart electronic devices.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Sensors and Actuators A-Physical",
title = "A high-sensitive current-mode pressure/force detector based on piezoelectric polymer PVDF",
pages = "175-165",
volume = "276",
doi = "10.1016/j.sna.2018.04.014"
}
Petrović, P. B., Pavlović, V., Vlahović, B.,& Mijailović, V.. (2018). A high-sensitive current-mode pressure/force detector based on piezoelectric polymer PVDF. in Sensors and Actuators A-Physical
Elsevier Science Sa, Lausanne., 276, 165-175.
https://doi.org/10.1016/j.sna.2018.04.014
Petrović PB, Pavlović V, Vlahović B, Mijailović V. A high-sensitive current-mode pressure/force detector based on piezoelectric polymer PVDF. in Sensors and Actuators A-Physical. 2018;276:165-175.
doi:10.1016/j.sna.2018.04.014 .
Petrović, Predrag B., Pavlović, Vladimir, Vlahović, Branislav, Mijailović, Vladica, "A high-sensitive current-mode pressure/force detector based on piezoelectric polymer PVDF" in Sensors and Actuators A-Physical, 276 (2018):165-175,
https://doi.org/10.1016/j.sna.2018.04.014 . .
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22

Structural investigation of mechanically activated ZnO powder

Peles, A.; Pavlović, Vera P.; Filipović, Suzana; Obradović, N.; Mancić, L.; Krstić, J.; Mitrić, M.; Vlahović, Branislav; Rasić, G.; Kosanović, Darko; Pavlović, Vladimir

(Elsevier Science Sa, Lausanne, 2015)

TY  - JOUR
AU  - Peles, A.
AU  - Pavlović, Vera P.
AU  - Filipović, Suzana
AU  - Obradović, N.
AU  - Mancić, L.
AU  - Krstić, J.
AU  - Mitrić, M.
AU  - Vlahović, Branislav
AU  - Rasić, G.
AU  - Kosanović, Darko
AU  - Pavlović, Vladimir
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3691
AB  - Commercially available ZnO powder was mechanically activated in a planetary ball mill. In order to investigate the specific surface area, pore volume and microstructure of non-activated and mechanically activated ZnO powders the authors performed N-2 physisorption, SEM and TEM. Crystallite size and lattice microstrain were analyzed by X-ray diffraction method. XRD patterns indicate that peak intensities are getting lower and expend with activation time. The reduction in crystallite size and increasing of lattice microstrain with prolonged milling time were determined applying the Rietveld's method. The difference between non-activated and the activated powder has been also observed by X-ray photoelectron spectroscopy (XPS). XPS is used for investigating the chemical bonding of ZnO powder by analyzing the energy of photoelectrons. The lattice vibration spectra were obtained using Raman spectroscopy. In Raman spectra some changes along with atypical resonant scattering were noticed, which were caused by mechanical activation.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Structural investigation of mechanically activated ZnO powder
EP  - 979
SP  - 971
VL  - 648
DO  - 10.1016/j.jallcom.2015.06.247
ER  - 
@article{
author = "Peles, A. and Pavlović, Vera P. and Filipović, Suzana and Obradović, N. and Mancić, L. and Krstić, J. and Mitrić, M. and Vlahović, Branislav and Rasić, G. and Kosanović, Darko and Pavlović, Vladimir",
year = "2015",
abstract = "Commercially available ZnO powder was mechanically activated in a planetary ball mill. In order to investigate the specific surface area, pore volume and microstructure of non-activated and mechanically activated ZnO powders the authors performed N-2 physisorption, SEM and TEM. Crystallite size and lattice microstrain were analyzed by X-ray diffraction method. XRD patterns indicate that peak intensities are getting lower and expend with activation time. The reduction in crystallite size and increasing of lattice microstrain with prolonged milling time were determined applying the Rietveld's method. The difference between non-activated and the activated powder has been also observed by X-ray photoelectron spectroscopy (XPS). XPS is used for investigating the chemical bonding of ZnO powder by analyzing the energy of photoelectrons. The lattice vibration spectra were obtained using Raman spectroscopy. In Raman spectra some changes along with atypical resonant scattering were noticed, which were caused by mechanical activation.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Structural investigation of mechanically activated ZnO powder",
pages = "979-971",
volume = "648",
doi = "10.1016/j.jallcom.2015.06.247"
}
Peles, A., Pavlović, V. P., Filipović, S., Obradović, N., Mancić, L., Krstić, J., Mitrić, M., Vlahović, B., Rasić, G., Kosanović, D.,& Pavlović, V.. (2015). Structural investigation of mechanically activated ZnO powder. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 648, 971-979.
https://doi.org/10.1016/j.jallcom.2015.06.247
Peles A, Pavlović VP, Filipović S, Obradović N, Mancić L, Krstić J, Mitrić M, Vlahović B, Rasić G, Kosanović D, Pavlović V. Structural investigation of mechanically activated ZnO powder. in Journal of Alloys and Compounds. 2015;648:971-979.
doi:10.1016/j.jallcom.2015.06.247 .
Peles, A., Pavlović, Vera P., Filipović, Suzana, Obradović, N., Mancić, L., Krstić, J., Mitrić, M., Vlahović, Branislav, Rasić, G., Kosanović, Darko, Pavlović, Vladimir, "Structural investigation of mechanically activated ZnO powder" in Journal of Alloys and Compounds, 648 (2015):971-979,
https://doi.org/10.1016/j.jallcom.2015.06.247 . .
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Raman Responses in Mechanically Activated BaTiO3

Pavlović, Vera P.; Nikolić, Maria V.; Pavlović, Vladimir; Blanusa, Jovan; Stevanović, Suzana; Mitić, Vojislav V.; Scepanović, Maja; Vlahović, Branislav

(Wiley, Hoboken, 2014)

TY  - JOUR
AU  - Pavlović, Vera P.
AU  - Nikolić, Maria V.
AU  - Pavlović, Vladimir
AU  - Blanusa, Jovan
AU  - Stevanović, Suzana
AU  - Mitić, Vojislav V.
AU  - Scepanović, Maja
AU  - Vlahović, Branislav
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3495
AB  - The structure and lattice dynamics of mechanically activated BaTiO3 was investigated in this study. Phonon behavior and crystal structure stability of the obtained nanocrystalline BaTiO3 were discussed from the view point of crystallite size effects and microstrains induced by mechanical activation. A systematic study of Raman responses indicates that mechanical activation has a distinct influence on BaTiO3 lattice spectra affecting the intensity, width, and position of Raman modes. The measured Raman spectra were deconvoluted and phonon parameters were estimated. It has been established that applied mechanical activation leads to a significant decrease in the mean crystallites size, but nevertheless enables formation of tetragonal nanocrystalline BaTiO3.
PB  - Wiley, Hoboken
T2  - Journal of the American Ceramic Society
T1  - Raman Responses in Mechanically Activated BaTiO3
EP  - 608
IS  - 2
SP  - 601
VL  - 97
DO  - 10.1111/jace.12423
ER  - 
@article{
author = "Pavlović, Vera P. and Nikolić, Maria V. and Pavlović, Vladimir and Blanusa, Jovan and Stevanović, Suzana and Mitić, Vojislav V. and Scepanović, Maja and Vlahović, Branislav",
year = "2014",
abstract = "The structure and lattice dynamics of mechanically activated BaTiO3 was investigated in this study. Phonon behavior and crystal structure stability of the obtained nanocrystalline BaTiO3 were discussed from the view point of crystallite size effects and microstrains induced by mechanical activation. A systematic study of Raman responses indicates that mechanical activation has a distinct influence on BaTiO3 lattice spectra affecting the intensity, width, and position of Raman modes. The measured Raman spectra were deconvoluted and phonon parameters were estimated. It has been established that applied mechanical activation leads to a significant decrease in the mean crystallites size, but nevertheless enables formation of tetragonal nanocrystalline BaTiO3.",
publisher = "Wiley, Hoboken",
journal = "Journal of the American Ceramic Society",
title = "Raman Responses in Mechanically Activated BaTiO3",
pages = "608-601",
number = "2",
volume = "97",
doi = "10.1111/jace.12423"
}
Pavlović, V. P., Nikolić, M. V., Pavlović, V., Blanusa, J., Stevanović, S., Mitić, V. V., Scepanović, M.,& Vlahović, B.. (2014). Raman Responses in Mechanically Activated BaTiO3. in Journal of the American Ceramic Society
Wiley, Hoboken., 97(2), 601-608.
https://doi.org/10.1111/jace.12423
Pavlović VP, Nikolić MV, Pavlović V, Blanusa J, Stevanović S, Mitić VV, Scepanović M, Vlahović B. Raman Responses in Mechanically Activated BaTiO3. in Journal of the American Ceramic Society. 2014;97(2):601-608.
doi:10.1111/jace.12423 .
Pavlović, Vera P., Nikolić, Maria V., Pavlović, Vladimir, Blanusa, Jovan, Stevanović, Suzana, Mitić, Vojislav V., Scepanović, Maja, Vlahović, Branislav, "Raman Responses in Mechanically Activated BaTiO3" in Journal of the American Ceramic Society, 97, no. 2 (2014):601-608,
https://doi.org/10.1111/jace.12423 . .
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Mechanical-Chemical Synthesis Ba0.77Sr0.23TiO3

Kosanović, Darko; Obradović, N.; Zivojinović, J.; Filipović, Suzana; Maricić, A.; Pavlović, Vladimir; Tang, Y.; Ristić, M.M.

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2012)

TY  - JOUR
AU  - Kosanović, Darko
AU  - Obradović, N.
AU  - Zivojinović, J.
AU  - Filipović, Suzana
AU  - Maricić, A.
AU  - Pavlović, Vladimir
AU  - Tang, Y.
AU  - Ristić, M.M.
PY  - 2012
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3040
AB  - Barium-Strontium-Titanate Ba0.77Sr0.23TiO3 was prepared from starting materials BaCO3, SrCO3 and TiO2 through solid-state reactions. Mixtures of these oxides are mechanically activated in a high-energy planetary ball mill at different time intervals from 0 to 120 minutes. In order to obtain information on phase composition, crystal structure was determent by X-ray diffraction. It was observed that after 80 minutes in process synthesis Ba0.77Sr0.23TiO3 started Thermal analyzes were performed in order to determine the characteristic temperatures of the processes that occur in the solid phase. Particle size distribution, together with electron microscopy scanning has given us very useful information about the morphology of the powder.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Mechanical-Chemical Synthesis Ba0.77Sr0.23TiO3
EP  - 55
IS  - 1
SP  - 47
VL  - 44
DO  - 10.2298/SOS1201047K
ER  - 
@article{
author = "Kosanović, Darko and Obradović, N. and Zivojinović, J. and Filipović, Suzana and Maricić, A. and Pavlović, Vladimir and Tang, Y. and Ristić, M.M.",
year = "2012",
abstract = "Barium-Strontium-Titanate Ba0.77Sr0.23TiO3 was prepared from starting materials BaCO3, SrCO3 and TiO2 through solid-state reactions. Mixtures of these oxides are mechanically activated in a high-energy planetary ball mill at different time intervals from 0 to 120 minutes. In order to obtain information on phase composition, crystal structure was determent by X-ray diffraction. It was observed that after 80 minutes in process synthesis Ba0.77Sr0.23TiO3 started Thermal analyzes were performed in order to determine the characteristic temperatures of the processes that occur in the solid phase. Particle size distribution, together with electron microscopy scanning has given us very useful information about the morphology of the powder.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Mechanical-Chemical Synthesis Ba0.77Sr0.23TiO3",
pages = "55-47",
number = "1",
volume = "44",
doi = "10.2298/SOS1201047K"
}
Kosanović, D., Obradović, N., Zivojinović, J., Filipović, S., Maricić, A., Pavlović, V., Tang, Y.,& Ristić, M.M.. (2012). Mechanical-Chemical Synthesis Ba0.77Sr0.23TiO3. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 44(1), 47-55.
https://doi.org/10.2298/SOS1201047K
Kosanović D, Obradović N, Zivojinović J, Filipović S, Maricić A, Pavlović V, Tang Y, Ristić M. Mechanical-Chemical Synthesis Ba0.77Sr0.23TiO3. in Science of Sintering. 2012;44(1):47-55.
doi:10.2298/SOS1201047K .
Kosanović, Darko, Obradović, N., Zivojinović, J., Filipović, Suzana, Maricić, A., Pavlović, Vladimir, Tang, Y., Ristić, M.M., "Mechanical-Chemical Synthesis Ba0.77Sr0.23TiO3" in Science of Sintering, 44, no. 1 (2012):47-55,
https://doi.org/10.2298/SOS1201047K . .
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