TY  - JOUR
AU  - Obradović, Nina
AU  - Gigov, Mihajlo
AU  - Đorđević, Aleksandar
AU  - Kern, Frank
AU  - Dmitrović, S.
AU  - Matović, Branko
AU  - Ðorđević, Antonije
AU  - Tshantshapanyan, Ani
AU  - Vlahović, Branislav
AU  - Petrović, Predrag
AU  - Pavlović, Vladimir B.
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6372
AB  - The paper presents results of the influence of mechanical activation of shungite, a carbon-mineral rock material rich in silica and carbon, on its sintering behaviour, and obtaining of pure SiC ceramics. The mechanical activation of the starting powder was performed in a high-energy ball mill in time intervals from 30 to 480 min. The phase composition of the starting powders and sintered samples was analysed by the X-ray diffraction method. The first traces of SiC were detected after sintering at 1350 °C for 2 h in an Ar atmosphere, along with traces of unreacted SiO2. The scanning electron microscopy was performed in order to determine changes in the microstructure. Sintering was performed at various temperatures for 2 h, in an Ar atmosphere and a vacuum. Dielectric properties of the sintered samples were measured in the frequency range from 1 to 500 MHz. The obtained results indicate that the sintered powder is a good candidate for applications as an absorber of electromagnetic waves in microwave engineering. © 2019 University of Novi Sad, Faculty of Technology. All rights reserved.
PB  - Novi Sad : Faculty of Technology, University of Novi Sad
T2  - Processing and Application of Ceramics
T1  - Shungite – a carbon-mineral rock material: Its sinterability and possible applications
SP  - 89
EP  - 97
VL  - 13
IS  - 1
DO  - 10.2298/PAC1901089O
UR  - https://hdl.handle.net/21.15107/rcub_dais_6372
ER  - 

@article{
author = "Obradović, Nina and Gigov, Mihajlo and Đorđević, Aleksandar and Kern, Frank and Dmitrović, S. and Matović, Branko and Ðorđević, Antonije and Tshantshapanyan, Ani and Vlahović, Branislav and Petrović, Predrag and Pavlović, Vladimir B.",
year = "2019",
abstract = "The paper presents results of the influence of mechanical activation of shungite, a carbon-mineral rock material rich in silica and carbon, on its sintering behaviour, and obtaining of pure SiC ceramics. The mechanical activation of the starting powder was performed in a high-energy ball mill in time intervals from 30 to 480 min. The phase composition of the starting powders and sintered samples was analysed by the X-ray diffraction method. The first traces of SiC were detected after sintering at 1350 °C for 2 h in an Ar atmosphere, along with traces of unreacted SiO2. The scanning electron microscopy was performed in order to determine changes in the microstructure. Sintering was performed at various temperatures for 2 h, in an Ar atmosphere and a vacuum. Dielectric properties of the sintered samples were measured in the frequency range from 1 to 500 MHz. The obtained results indicate that the sintered powder is a good candidate for applications as an absorber of electromagnetic waves in microwave engineering. © 2019 University of Novi Sad, Faculty of Technology. All rights reserved.",
publisher = "Novi Sad : Faculty of Technology, University of Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Shungite – a carbon-mineral rock material: Its sinterability and possible applications",
pages = "89-97",
volume = "13",
number = "1",
doi = "10.2298/PAC1901089O",
url = "https://hdl.handle.net/21.15107/rcub_dais_6372"
}

Obradović, N., Gigov, M., Đorđević, A., Kern, F., Dmitrović, S., Matović, B., Ðorđević, A., Tshantshapanyan, A., Vlahović, B., Petrović, P.,& Pavlović, V. B.. (2019). Shungite – a carbon-mineral rock material: Its sinterability and possible applications. in Processing and Application of Ceramics
Novi Sad : Faculty of Technology, University of Novi Sad., 13(1), 89-97.
https://doi.org/10.2298/PAC1901089O
https://hdl.handle.net/21.15107/rcub_dais_6372

Obradović N, Gigov M, Đorđević A, Kern F, Dmitrović S, Matović B, Ðorđević A, Tshantshapanyan A, Vlahović B, Petrović P, Pavlović VB. Shungite – a carbon-mineral rock material: Its sinterability and possible applications. in Processing and Application of Ceramics. 2019;13(1):89-97.
doi:10.2298/PAC1901089O
https://hdl.handle.net/21.15107/rcub_dais_6372 .

Obradović, Nina, Gigov, Mihajlo, Đorđević, Aleksandar, Kern, Frank, Dmitrović, S., Matović, Branko, Ðorđević, Antonije, Tshantshapanyan, Ani, Vlahović, Branislav, Petrović, Predrag, Pavlović, Vladimir B., "Shungite – a carbon-mineral rock material: Its sinterability and possible applications" in Processing and Application of Ceramics, 13, no. 1 (2019):89-97,
https://doi.org/10.2298/PAC1901089O .,
https://hdl.handle.net/21.15107/rcub_dais_6372 .

TY  - JOUR
AU  - Petrović, Predrag B.
AU  - Pavlović, Vladimir B.
AU  - Vlahović, Branislav
AU  - Mijailović, Vladica
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/3704
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. © 2018 Elsevier B.V.
PB  - Elsevier
T2  - Sensors and Actuators, A: Physical
T1  - A high-sensitive current-mode pressure/force detector based on piezoelectric polymer PVDF
SP  - 165
EP  - 175
VL  - 276
DO  - 10.1016/j.sna.2018.04.014
UR  - https://hdl.handle.net/21.15107/rcub_dais_3704
ER  - 

@article{
author = "Petrović, Predrag B. and Pavlović, Vladimir B. 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. © 2018 Elsevier B.V.",
publisher = "Elsevier",
journal = "Sensors and Actuators, A: Physical",
title = "A high-sensitive current-mode pressure/force detector based on piezoelectric polymer PVDF",
pages = "165-175",
volume = "276",
doi = "10.1016/j.sna.2018.04.014",
url = "https://hdl.handle.net/21.15107/rcub_dais_3704"
}

Petrović, P. B., Pavlović, V. B., 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., 276, 165-175.
https://doi.org/10.1016/j.sna.2018.04.014
https://hdl.handle.net/21.15107/rcub_dais_3704

Petrović PB, Pavlović VB, 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
https://hdl.handle.net/21.15107/rcub_dais_3704 .

Petrović, Predrag B., Pavlović, Vladimir B., 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 .,
https://hdl.handle.net/21.15107/rcub_dais_3704 .