TY  - CONF
AU  - Čebela, Maria
AU  - Marković, Bojana
AU  - Radović, Ivana M.
AU  - Stajičić, Aleksandar
AU  - Rosić, Milena
AU  - Panić, Ivan
AU  - Maletić, Dejan
AU  - Mitić, Vojislav V.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10838
AB  - From the technological point of view, the mutual control of electric and magnetic properties is an attractive possibility, but the number of candidate multiferroic materials is limited. One of the most studied of them, BiFeO3 , has critical conditions for synthesizing single phase since the phase temperature stability range is very narrow. Bismuth ferrite (BFO) particles were synthesized by controlled hydrothermal process, where the particles of small sizes and high purity were obtained. A fitting refinement procedure using the Rietveld method was performed. Bismuth ferrite crystallizes in the perovskite type structure (α-BiFeO3 ) with rhombohedral space group R3c. The effects of thermal treatment through applied hydrothermal method on the obtained BFO grains morphology were evaluated by SEM and TEM analyses.SEM analysis showed that grains are very well crystallized, with non- fragmented crystal flats. Individual particles HRTEM analysis confirmed the evidence of ultra-fine single crystal particles, with characteristic (012) crystal planes. Furthermore, HRTEM confirmed the existence of twin stacking faults responsible for synthesized fine particles enhanced magnetic properties. The EPR results suggested the existence and participation of electrons trapped by vacancies or defects. It has been proposed that the existence of Fe 3+−OV defect complex could be generated at elevated temperatures followed by formation of Fe 3+ ions, which intensely provide the local 3d moments.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - BiFeO3 fine powder controlled hydrothermal process synthesis and characterization
SP  - 79
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10838
ER  - 

@conference{
author = "Čebela, Maria and Marković, Bojana and Radović, Ivana M. and Stajičić, Aleksandar and Rosić, Milena and Panić, Ivan and Maletić, Dejan and Mitić, Vojislav V.",
year = "2021",
abstract = "From the technological point of view, the mutual control of electric and magnetic properties is an attractive possibility, but the number of candidate multiferroic materials is limited. One of the most studied of them, BiFeO3 , has critical conditions for synthesizing single phase since the phase temperature stability range is very narrow. Bismuth ferrite (BFO) particles were synthesized by controlled hydrothermal process, where the particles of small sizes and high purity were obtained. A fitting refinement procedure using the Rietveld method was performed. Bismuth ferrite crystallizes in the perovskite type structure (α-BiFeO3 ) with rhombohedral space group R3c. The effects of thermal treatment through applied hydrothermal method on the obtained BFO grains morphology were evaluated by SEM and TEM analyses.SEM analysis showed that grains are very well crystallized, with non- fragmented crystal flats. Individual particles HRTEM analysis confirmed the evidence of ultra-fine single crystal particles, with characteristic (012) crystal planes. Furthermore, HRTEM confirmed the existence of twin stacking faults responsible for synthesized fine particles enhanced magnetic properties. The EPR results suggested the existence and participation of electrons trapped by vacancies or defects. It has been proposed that the existence of Fe 3+−OV defect complex could be generated at elevated temperatures followed by formation of Fe 3+ ions, which intensely provide the local 3d moments.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "BiFeO3 fine powder controlled hydrothermal process synthesis and characterization",
pages = "79",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10838"
}

Čebela, M., Marković, B., Radović, I. M., Stajičić, A., Rosić, M., Panić, I., Maletić, D.,& Mitić, V. V.. (2021). BiFeO3 fine powder controlled hydrothermal process synthesis and characterization. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 79.
https://hdl.handle.net/21.15107/rcub_vinar_10838

Čebela M, Marković B, Radović IM, Stajičić A, Rosić M, Panić I, Maletić D, Mitić VV. BiFeO3 fine powder controlled hydrothermal process synthesis and characterization. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:79.
https://hdl.handle.net/21.15107/rcub_vinar_10838 .

Čebela, Maria, Marković, Bojana, Radović, Ivana M., Stajičić, Aleksandar, Rosić, Milena, Panić, Ivan, Maletić, Dejan, Mitić, Vojislav V., "BiFeO3 fine powder controlled hydrothermal process synthesis and characterization" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):79,
https://hdl.handle.net/21.15107/rcub_vinar_10838 .

TY  - CONF
AU  - Radović, Ivana M.
AU  - Mitić, Vojislav V.
AU  - Stajčić, Aleksandar
AU  - Serpa, Cristina
AU  - Ribar, Srđan
AU  - Ranđelović, Branislav
AU  - Vlahović, Branislav
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10787
AB  - Polymers offer the possibility of different reinforcement incorporation due to a broad range of chemical structures.Along with this feature, their light weight and processing ease made them a class of materials that have been applied in construction parts, drug delivery agents or electronic devices. Epoxy-based composites have used as insulators in microelectronic devices due to its chemical resistance, good adhesion properties and endurance. As epoxies have low fracture resistance, they are often reinforced with different kinds of fibers.With thorough knowledge of the structure, physical properties can be predicted and included in the processing of future composites, especially that electronic materials minituarization brought micro- and nanoscale level properties at spotlight. Fractal nature analysis is a mathematical method that has proved to be efficient in grain interface properties applied on perovskite ceramic materials.In our study, fiber shape reconstruction and determination of Hausdorff dimension have been achieved with the application of fractal regression model employed in software Fractal Real Finder opening a new path for the prediction of reinforcement shape and size, all with the aim of processing composite materials with desired properties.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - Fractal reconstruction of fiber-reinforced polymer composites
SP  - 49
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10787
ER  - 

@conference{
author = "Radović, Ivana M. and Mitić, Vojislav V. and Stajčić, Aleksandar and Serpa, Cristina and Ribar, Srđan and Ranđelović, Branislav and Vlahović, Branislav",
year = "2021",
abstract = "Polymers offer the possibility of different reinforcement incorporation due to a broad range of chemical structures.Along with this feature, their light weight and processing ease made them a class of materials that have been applied in construction parts, drug delivery agents or electronic devices. Epoxy-based composites have used as insulators in microelectronic devices due to its chemical resistance, good adhesion properties and endurance. As epoxies have low fracture resistance, they are often reinforced with different kinds of fibers.With thorough knowledge of the structure, physical properties can be predicted and included in the processing of future composites, especially that electronic materials minituarization brought micro- and nanoscale level properties at spotlight. Fractal nature analysis is a mathematical method that has proved to be efficient in grain interface properties applied on perovskite ceramic materials.In our study, fiber shape reconstruction and determination of Hausdorff dimension have been achieved with the application of fractal regression model employed in software Fractal Real Finder opening a new path for the prediction of reinforcement shape and size, all with the aim of processing composite materials with desired properties.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "Fractal reconstruction of fiber-reinforced polymer composites",
pages = "49",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10787"
}

Radović, I. M., Mitić, V. V., Stajčić, A., Serpa, C., Ribar, S., Ranđelović, B.,& Vlahović, B.. (2021). Fractal reconstruction of fiber-reinforced polymer composites. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 49.
https://hdl.handle.net/21.15107/rcub_vinar_10787

Radović IM, Mitić VV, Stajčić A, Serpa C, Ribar S, Ranđelović B, Vlahović B. Fractal reconstruction of fiber-reinforced polymer composites. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:49.
https://hdl.handle.net/21.15107/rcub_vinar_10787 .

Radović, Ivana M., Mitić, Vojislav V., Stajčić, Aleksandar, Serpa, Cristina, Ribar, Srđan, Ranđelović, Branislav, Vlahović, Branislav, "Fractal reconstruction of fiber-reinforced polymer composites" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):49,
https://hdl.handle.net/21.15107/rcub_vinar_10787 .

TY  - JOUR
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Mitić, Vojislav
AU  - Šaponjić, Aleksandra
AU  - Kasić, Vladan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9991
AB  - Data on thermally induced transformations of Mn exchanged zeolites LTA and FAU topology are presented in this paper. Thermally induced phase transformation of Mn-exchange zeolites are followed in the range from 700 to 1300oC. Both frameworks collapse into amorphous intermediate products after heating between 600 and 650oC. Prolonged heating of the intermediate product above 1100 °C results directly in formation of a disorder Mn-anorthiteLTA and Mn-anorthiteFAU. The parameter of unit cell of Mn-anorthiteLTA and Mn-anorthiteFAU, in temperature range between 700 and 1300oC, was observed in space group C-1. The phase conversions in the temperature range investigated were followed by thermal, X-ray powder diffraction and FT-IR analyses.
T2  - Science of Sintering
T1  - Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases
VL  - 53
IS  - 3
SP  - 397
EP  - 406
DO  - 10.2298/SOS2103397R
ER  - 

@article{
author = "Radosavljević-Mihajlović, Ana S. and Mitić, Vojislav and Šaponjić, Aleksandra and Kasić, Vladan",
year = "2021",
abstract = "Data on thermally induced transformations of Mn exchanged zeolites LTA and FAU topology are presented in this paper. Thermally induced phase transformation of Mn-exchange zeolites are followed in the range from 700 to 1300oC. Both frameworks collapse into amorphous intermediate products after heating between 600 and 650oC. Prolonged heating of the intermediate product above 1100 °C results directly in formation of a disorder Mn-anorthiteLTA and Mn-anorthiteFAU. The parameter of unit cell of Mn-anorthiteLTA and Mn-anorthiteFAU, in temperature range between 700 and 1300oC, was observed in space group C-1. The phase conversions in the temperature range investigated were followed by thermal, X-ray powder diffraction and FT-IR analyses.",
journal = "Science of Sintering",
title = "Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases",
volume = "53",
number = "3",
pages = "397-406",
doi = "10.2298/SOS2103397R"
}

Radosavljević-Mihajlović, A. S., Mitić, V., Šaponjić, A.,& Kasić, V.. (2021). Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases. in Science of Sintering, 53(3), 397-406.
https://doi.org/10.2298/SOS2103397R

Radosavljević-Mihajlović AS, Mitić V, Šaponjić A, Kasić V. Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases. in Science of Sintering. 2021;53(3):397-406.
doi:10.2298/SOS2103397R .

Radosavljević-Mihajlović, Ana S., Mitić, Vojislav, Šaponjić, Aleksandra, Kasić, Vladan, "Thermally induced phase transformation of Mn-LTA and Mn-FAU zeolite to anorthite phases" in Science of Sintering, 53, no. 3 (2021):397-406,
https://doi.org/10.2298/SOS2103397R . .

TY  - JOUR
AU  - Mitić, Vojislav V.
AU  - Lazović, Goran
AU  - Ribar, Srđan
AU  - Lu, Chun-An
AU  - Radović, Ivana M.
AU  - Stajčić, Aleksandar
AU  - Fecht, Hans
AU  - Vlahović, Branislav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9728
AB  - This paper is based on fundamental research to develop the interface structure around the grains and to control the layers between two grains, as a prospective media for high-level electronic parameters integrations. We performed the experiments based on nano-BaTiO3 powders with Y additives. All results on dielectric parameters on submicron level are the part of global values the same measured characteristics at the bulk samples. The original idea is to develop the new computing ways to network electronic parameters in thin layers between the grains on the way to get and to compare the values on the samples. Artificial neural networks are computing tools that map input-output data and could be applied on ceramic electronic parameters. These are developed in the manner signals are processed in biological neural networks. The signals are processed by using elements which represent artificial neurons, which have a simple function to process input signal, as well as adjustable parameter which has an influence to change output signal. The total network output presents the sum of a large number neurons outputs. This important research idea is to connect analysis results and neural networks. There is a great interest to connect all of these microcapacitances by neural network with the goal to compare the results in the standard bulk samples measurements frame and microelectronics parameters. The final result of the study was functional relation definition between consolidation parameters, voltage (U) and relative capacitance change, from the level of the bulk sample down to the grains boundaries.
T2  - Integrated Ferroelectrics
T1  - The Artificial Neural Networks Applied for Microelectronics Intergranular Relations Determination
VL  - 212
IS  - 1
SP  - 135
EP  - 146
DO  - 10.1080/10584587.2020.1819042
ER  - 

@article{
author = "Mitić, Vojislav V. and Lazović, Goran and Ribar, Srđan and Lu, Chun-An and Radović, Ivana M. and Stajčić, Aleksandar and Fecht, Hans and Vlahović, Branislav",
year = "2020",
abstract = "This paper is based on fundamental research to develop the interface structure around the grains and to control the layers between two grains, as a prospective media for high-level electronic parameters integrations. We performed the experiments based on nano-BaTiO3 powders with Y additives. All results on dielectric parameters on submicron level are the part of global values the same measured characteristics at the bulk samples. The original idea is to develop the new computing ways to network electronic parameters in thin layers between the grains on the way to get and to compare the values on the samples. Artificial neural networks are computing tools that map input-output data and could be applied on ceramic electronic parameters. These are developed in the manner signals are processed in biological neural networks. The signals are processed by using elements which represent artificial neurons, which have a simple function to process input signal, as well as adjustable parameter which has an influence to change output signal. The total network output presents the sum of a large number neurons outputs. This important research idea is to connect analysis results and neural networks. There is a great interest to connect all of these microcapacitances by neural network with the goal to compare the results in the standard bulk samples measurements frame and microelectronics parameters. The final result of the study was functional relation definition between consolidation parameters, voltage (U) and relative capacitance change, from the level of the bulk sample down to the grains boundaries.",
journal = "Integrated Ferroelectrics",
title = "The Artificial Neural Networks Applied for Microelectronics Intergranular Relations Determination",
volume = "212",
number = "1",
pages = "135-146",
doi = "10.1080/10584587.2020.1819042"
}

Mitić, V. V., Lazović, G., Ribar, S., Lu, C., Radović, I. M., Stajčić, A., Fecht, H.,& Vlahović, B.. (2020). The Artificial Neural Networks Applied for Microelectronics Intergranular Relations Determination. in Integrated Ferroelectrics, 212(1), 135-146.
https://doi.org/10.1080/10584587.2020.1819042

Mitić VV, Lazović G, Ribar S, Lu C, Radović IM, Stajčić A, Fecht H, Vlahović B. The Artificial Neural Networks Applied for Microelectronics Intergranular Relations Determination. in Integrated Ferroelectrics. 2020;212(1):135-146.
doi:10.1080/10584587.2020.1819042 .

Mitić, Vojislav V., Lazović, Goran, Ribar, Srđan, Lu, Chun-An, Radović, Ivana M., Stajčić, Aleksandar, Fecht, Hans, Vlahović, Branislav, "The Artificial Neural Networks Applied for Microelectronics Intergranular Relations Determination" in Integrated Ferroelectrics, 212, no. 1 (2020):135-146,
https://doi.org/10.1080/10584587.2020.1819042 . .

TY  - JOUR
AU  - Ranđelović, Branislav M.
AU  - Mitić, Vojislav V.
AU  - Ribar, Srđan
AU  - Lu, Chun-An
AU  - Radović, Ivana M.
AU  - Stajčić, Aleksandar
AU  - Novaković, Igor
AU  - Vlahović, Branislav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9763
AB  - This research is focused on further developing of application and use of graph theory in order to describe relations between grains and to establish control over layers. We used functionalized BaTiO3 nanoparticles coated with Yttrium-based salt. The capacitance change results on super-microstructure levels are the part of the measured values on the bulk samples. The new idea is graph theory application for determination of electronic parameters distribution at the grain boundary and to compare them with the bulk measured values. We present them with vertices in graph, corresponding with grains, connected with edges. Capacitance change with applied voltage was measured on samples sintered in air and nitrogen, up to 100 V. Using graph theory, it has been shown that capacitance change can be successfully calculated on the layers between grains. Within the idea how to get parameters values at microlevel between the grains and pores, mathematical tool can be developed. Besides previously described 1D case, some original calculations for 2D cases were performed in this study, proving successful graph theory use for the calculation of values at nanolevel, leading to a further minituarization in micropackaging.
T2  - Modern Physics Letters B
T1  - Ceramics, materials, microelectronics and graph theory new frontiers
VL  - 34
SP  - 2150159
DO  - 10.1142/S0217984921501591
ER  - 

@article{
author = "Ranđelović, Branislav M. and Mitić, Vojislav V. and Ribar, Srđan and Lu, Chun-An and Radović, Ivana M. and Stajčić, Aleksandar and Novaković, Igor and Vlahović, Branislav",
year = "2020",
abstract = "This research is focused on further developing of application and use of graph theory in order to describe relations between grains and to establish control over layers. We used functionalized BaTiO3 nanoparticles coated with Yttrium-based salt. The capacitance change results on super-microstructure levels are the part of the measured values on the bulk samples. The new idea is graph theory application for determination of electronic parameters distribution at the grain boundary and to compare them with the bulk measured values. We present them with vertices in graph, corresponding with grains, connected with edges. Capacitance change with applied voltage was measured on samples sintered in air and nitrogen, up to 100 V. Using graph theory, it has been shown that capacitance change can be successfully calculated on the layers between grains. Within the idea how to get parameters values at microlevel between the grains and pores, mathematical tool can be developed. Besides previously described 1D case, some original calculations for 2D cases were performed in this study, proving successful graph theory use for the calculation of values at nanolevel, leading to a further minituarization in micropackaging.",
journal = "Modern Physics Letters B",
title = "Ceramics, materials, microelectronics and graph theory new frontiers",
volume = "34",
pages = "2150159",
doi = "10.1142/S0217984921501591"
}

Ranđelović, B. M., Mitić, V. V., Ribar, S., Lu, C., Radović, I. M., Stajčić, A., Novaković, I.,& Vlahović, B.. (2020). Ceramics, materials, microelectronics and graph theory new frontiers. in Modern Physics Letters B, 34, 2150159.
https://doi.org/10.1142/S0217984921501591

Ranđelović BM, Mitić VV, Ribar S, Lu C, Radović IM, Stajčić A, Novaković I, Vlahović B. Ceramics, materials, microelectronics and graph theory new frontiers. in Modern Physics Letters B. 2020;34:2150159.
doi:10.1142/S0217984921501591 .

Ranđelović, Branislav M., Mitić, Vojislav V., Ribar, Srđan, Lu, Chun-An, Radović, Ivana M., Stajčić, Aleksandar, Novaković, Igor, Vlahović, Branislav, "Ceramics, materials, microelectronics and graph theory new frontiers" in Modern Physics Letters B, 34 (2020):2150159,
https://doi.org/10.1142/S0217984921501591 . .