TY  - CONF
AU  - Ferreira Teixeira, Guilhermina
AU  - Džunuzović, Adis
AU  - Lustosa, Glauco
AU  - Vijatović Petrović, Mirjana
AU  - Stojanović, Biljana
AU  - ZAGHETE, MARIA
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2633
AB  - Photoluminescence (PL) analysis provide us important information about the structure of materials, however the PL behavior of (x)Ni0.7Zn0.3Fe2O4-(1-x)BaTiO3 ((x)NZF-(1-x)BT) multiferroic composites is not very well know. Based on this, (x)NZF-(1-x)BT powders whit different ratio of NZF/BT (x= 0.1, 0.3, 0.5, 0.7, 0.9) were synthesized by auto-combustion method. After that, the PL property of the composites was explored through measurements carried out using as excitation source a krypton laser with wavelength of 350 nm. The presence of PL emission suggests that the structures of the materials are medium range disordered. Oxygen vacancies (anion vacancies), metal vacancies (cation vacancy) and lattice distortion are responsible by PL emission due to formation of structural defects which are essential to promote the electronic transitions inside band gap. Emission at low energy (green/yellow/red) occurs due to deep defects which modify the Fermi level generating intermediary levels near the conduction band. On the other hand, PL emission at high energy region (violet/ blue) is originated by the presence of shallow defects which generate states next to the valence band. In the present work, all samples showed a broad band emission centered around 450 nm (Figure 1), being a region characteristic of contribution of shallow defects for photoluminescence emission. In addition, the PL broad band emission is an evidence of structural disorder in the lattice of materials which promotes the formation of numerous states within the band gap.
PB  - Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia
C3  - 4th Conference of The Serbian Society for Ceramic Materials, June 14-16.2017. Belgrade Serbia
T1  - NZF-BT COMPOSITES: A PHOTOLUMINESCENCE APPROACH
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2633
ER  - 

@conference{
author = "Ferreira Teixeira, Guilhermina and Džunuzović, Adis and Lustosa, Glauco and Vijatović Petrović, Mirjana and Stojanović, Biljana and ZAGHETE, MARIA",
year = "2017",
abstract = "Photoluminescence (PL) analysis provide us important information about the structure of materials, however the PL behavior of (x)Ni0.7Zn0.3Fe2O4-(1-x)BaTiO3 ((x)NZF-(1-x)BT) multiferroic composites is not very well know. Based on this, (x)NZF-(1-x)BT powders whit different ratio of NZF/BT (x= 0.1, 0.3, 0.5, 0.7, 0.9) were synthesized by auto-combustion method. After that, the PL property of the composites was explored through measurements carried out using as excitation source a krypton laser with wavelength of 350 nm. The presence of PL emission suggests that the structures of the materials are medium range disordered. Oxygen vacancies (anion vacancies), metal vacancies (cation vacancy) and lattice distortion are responsible by PL emission due to formation of structural defects which are essential to promote the electronic transitions inside band gap. Emission at low energy (green/yellow/red) occurs due to deep defects which modify the Fermi level generating intermediary levels near the conduction band. On the other hand, PL emission at high energy region (violet/ blue) is originated by the presence of shallow defects which generate states next to the valence band. In the present work, all samples showed a broad band emission centered around 450 nm (Figure 1), being a region characteristic of contribution of shallow defects for photoluminescence emission. In addition, the PL broad band emission is an evidence of structural disorder in the lattice of materials which promotes the formation of numerous states within the band gap.",
publisher = "Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia",
journal = "4th Conference of The Serbian Society for Ceramic Materials, June 14-16.2017. Belgrade Serbia",
title = "NZF-BT COMPOSITES: A PHOTOLUMINESCENCE APPROACH",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2633"
}

Ferreira Teixeira, G., Džunuzović, A., Lustosa, G., Vijatović Petrović, M., Stojanović, B.,& ZAGHETE, M.. (2017). NZF-BT COMPOSITES: A PHOTOLUMINESCENCE APPROACH. in 4th Conference of The Serbian Society for Ceramic Materials, June 14-16.2017. Belgrade Serbia
Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia..
https://hdl.handle.net/21.15107/rcub_rimsi_2633

Ferreira Teixeira G, Džunuzović A, Lustosa G, Vijatović Petrović M, Stojanović B, ZAGHETE M. NZF-BT COMPOSITES: A PHOTOLUMINESCENCE APPROACH. in 4th Conference of The Serbian Society for Ceramic Materials, June 14-16.2017. Belgrade Serbia. 2017;.
https://hdl.handle.net/21.15107/rcub_rimsi_2633 .

Ferreira Teixeira, Guilhermina, Džunuzović, Adis, Lustosa, Glauco, Vijatović Petrović, Mirjana, Stojanović, Biljana, ZAGHETE, MARIA, "NZF-BT COMPOSITES: A PHOTOLUMINESCENCE APPROACH" in 4th Conference of The Serbian Society for Ceramic Materials, June 14-16.2017. Belgrade Serbia (2017),
https://hdl.handle.net/21.15107/rcub_rimsi_2633 .

TY  - CONF
AU  - Ferreira Teixeira, Guilhermina
AU  - Džunuzović, Adis
AU  - Lustosa, G.M.M.M.
AU  - Amoresi, R.C.
AU  - Vijatović Petrović, Mirjana
AU  - ZAGHETE, MARIA
AU  - Stojanović, Biljana
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2614
AB  - Ferroics and multiferroics are among the most attractive multifunctional materials. In recent years, multiferroic composite consisted of two or more ferroic orders, such as ferroelectric, ferromagnetic, or ferroelastic, in which coupling between these phases can produce magnetoelectric effect, has been drawing significant attention. Besides others, (Ni, Zn)Fe2O4-BaTiO3 composites have attracted considerable attention not only due to fundamental research of magneto-electric effect, but also for the potential applications in many electronic devices such as drug delivery, heterogeneous catalysis, levitated railway system, magnetic-refrigeration, microwave devices, antennas, memory devices, etc. In this composite, (Ni,Zn)Fe2O4(NZF) possesses magnetic behavior, and the ferroelectricity is due to the presence of BaTiO3 (BT). In the present work, it was investigated the structural and photoluminiscence properties of NZF-BT composite nanopowders prepared by auto-combution method and the different ratio of NZF/BT was explored. XRD indicated well cristallized powders but with small presence of secondary phases respecting to BT. By FE-SEM analyses was noticed the agglomerates with wide particles size distribution, as well as the difference of the particles morphology between (Ni,Zn)Fe2O4 and BaTiO3. FT-IR spectra display interactions between metal-oxygen around 500-600 cm-1. The different ratio of NZF/BT effects on the optical band gap values indicating the formation of intermediary levels modifying the Fermi level. Photoluminescence (PL) analysis provides important information about the materials structures, however the PL behavior of these composites is not very well known. The presence of PL emission suggests that the structures of the materials are medium range disordered. All samples showed a broad band emission centered around 450 nm, being a region characteristic of resultant emission from the presence of shallow defects in materials structures. This behavior is reinforced by deconvolution of PL bands, which shows the contribution of tree sub bands to emission (blue, green and yellow emission), being that the largest area of spectra is occupied by a band correspondent to blue emission.
PB  - Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia
C3  - 12th Conference for Young Scientists in Ceramics, CYSC-2017 Novi Sad, Serbia, October 18-21, 2017
T1  - STRUCTURAL AND PHOTOLUMINESCENCE PROPERTIES OF THE (Ni,Zn) Fe2O4-BaTiO3 MULTIFERROIC COMPOSITE NANOPOWDERS
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2614
ER  - 

@conference{
author = "Ferreira Teixeira, Guilhermina and Džunuzović, Adis and Lustosa, G.M.M.M. and Amoresi, R.C. and Vijatović Petrović, Mirjana and ZAGHETE, MARIA and Stojanović, Biljana",
year = "2017",
abstract = "Ferroics and multiferroics are among the most attractive multifunctional materials. In recent years, multiferroic composite consisted of two or more ferroic orders, such as ferroelectric, ferromagnetic, or ferroelastic, in which coupling between these phases can produce magnetoelectric effect, has been drawing significant attention. Besides others, (Ni, Zn)Fe2O4-BaTiO3 composites have attracted considerable attention not only due to fundamental research of magneto-electric effect, but also for the potential applications in many electronic devices such as drug delivery, heterogeneous catalysis, levitated railway system, magnetic-refrigeration, microwave devices, antennas, memory devices, etc. In this composite, (Ni,Zn)Fe2O4(NZF) possesses magnetic behavior, and the ferroelectricity is due to the presence of BaTiO3 (BT). In the present work, it was investigated the structural and photoluminiscence properties of NZF-BT composite nanopowders prepared by auto-combution method and the different ratio of NZF/BT was explored. XRD indicated well cristallized powders but with small presence of secondary phases respecting to BT. By FE-SEM analyses was noticed the agglomerates with wide particles size distribution, as well as the difference of the particles morphology between (Ni,Zn)Fe2O4 and BaTiO3. FT-IR spectra display interactions between metal-oxygen around 500-600 cm-1. The different ratio of NZF/BT effects on the optical band gap values indicating the formation of intermediary levels modifying the Fermi level. Photoluminescence (PL) analysis provides important information about the materials structures, however the PL behavior of these composites is not very well known. The presence of PL emission suggests that the structures of the materials are medium range disordered. All samples showed a broad band emission centered around 450 nm, being a region characteristic of resultant emission from the presence of shallow defects in materials structures. This behavior is reinforced by deconvolution of PL bands, which shows the contribution of tree sub bands to emission (blue, green and yellow emission), being that the largest area of spectra is occupied by a band correspondent to blue emission.",
publisher = "Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia",
journal = "12th Conference for Young Scientists in Ceramics, CYSC-2017 Novi Sad, Serbia, October 18-21, 2017",
title = "STRUCTURAL AND PHOTOLUMINESCENCE PROPERTIES OF THE (Ni,Zn) Fe2O4-BaTiO3 MULTIFERROIC COMPOSITE NANOPOWDERS",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2614"
}

Ferreira Teixeira, G., Džunuzović, A., Lustosa, G.M.M.M., Amoresi, R.C., Vijatović Petrović, M., ZAGHETE, M.,& Stojanović, B.. (2017). STRUCTURAL AND PHOTOLUMINESCENCE PROPERTIES OF THE (Ni,Zn) Fe2O4-BaTiO3 MULTIFERROIC COMPOSITE NANOPOWDERS. in 12th Conference for Young Scientists in Ceramics, CYSC-2017 Novi Sad, Serbia, October 18-21, 2017
Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia..
https://hdl.handle.net/21.15107/rcub_rimsi_2614

Ferreira Teixeira G, Džunuzović A, Lustosa G, Amoresi R, Vijatović Petrović M, ZAGHETE M, Stojanović B. STRUCTURAL AND PHOTOLUMINESCENCE PROPERTIES OF THE (Ni,Zn) Fe2O4-BaTiO3 MULTIFERROIC COMPOSITE NANOPOWDERS. in 12th Conference for Young Scientists in Ceramics, CYSC-2017 Novi Sad, Serbia, October 18-21, 2017. 2017;.
https://hdl.handle.net/21.15107/rcub_rimsi_2614 .

Ferreira Teixeira, Guilhermina, Džunuzović, Adis, Lustosa, G.M.M.M., Amoresi, R.C., Vijatović Petrović, Mirjana, ZAGHETE, MARIA, Stojanović, Biljana, "STRUCTURAL AND PHOTOLUMINESCENCE PROPERTIES OF THE (Ni,Zn) Fe2O4-BaTiO3 MULTIFERROIC COMPOSITE NANOPOWDERS" in 12th Conference for Young Scientists in Ceramics, CYSC-2017 Novi Sad, Serbia, October 18-21, 2017 (2017),
https://hdl.handle.net/21.15107/rcub_rimsi_2614 .

TY  - CONF
AU  - Džunuzović, Adis
AU  - Ilić, Nikola
AU  - Bobić, Jelena
AU  - Vijatović Petrović, Mirjana
AU  - Curecheriu, Lavinia-Petronela
AU  - Stojanović, Biljana
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2623
AB  - In this study we have prepared nickel ferrite (NF) and nickel zinc ferrite (NZF) nanoparticles by auto-combustion method starting from nickel, zinc and iron nitrates. After the process of self-ignition, fine precursor powder was thermally treated at 1000 °C for 1 h, forming nickel zinc ferrite powders, with molar ratio of Zn 0, 0.3, 0.5, 0.7. XRD characterization showed the formation of well crystallized nickel ferrite and nickel zinc ferrite inverse spinel structure without presence of secondary phases. Ceramic materials were obtained by uniaxial pressing at 196 MPa and sintering at 1250 °C for 4 h in the tube furnace. SEM images at the free surface showed that substitution of Ni2+ ions with Zn2+ ions results in larger grains and lower porosity, confirmed by density
measurements.
Magnetization results showed ferromagnetic behavior of the NF and NZF
materials. Magnetic measurements of ferrites were carried out and presented in Fig. 1.
Saturation magnetization moment of NF was lower than for N0.7Z0.3F and N0.5Z0.5F, but
slightly higher than for N0.3Z0.7F. With increasing the ratio of Zn to 0.3, magnetization
increases, because the Fe3+ ions in the octahedral site interact with other Fe3+ ions. The
fields at which saturation occur was almost the same for all materials.
PB  - Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia
C3  - The Third Early Stage Researchers Workshop” COST MP0904 - SIMUFER Novi Sad, Serbia, November 6-9, 2013
T1  - SYNTHESIS AND CHARACTERIZATION OF NICKEL ZINC FERRITES
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2623
ER  - 

@conference{
author = "Džunuzović, Adis and Ilić, Nikola and Bobić, Jelena and Vijatović Petrović, Mirjana and Curecheriu, Lavinia-Petronela and Stojanović, Biljana",
year = "2013",
abstract = "In this study we have prepared nickel ferrite (NF) and nickel zinc ferrite (NZF) nanoparticles by auto-combustion method starting from nickel, zinc and iron nitrates. After the process of self-ignition, fine precursor powder was thermally treated at 1000 °C for 1 h, forming nickel zinc ferrite powders, with molar ratio of Zn 0, 0.3, 0.5, 0.7. XRD characterization showed the formation of well crystallized nickel ferrite and nickel zinc ferrite inverse spinel structure without presence of secondary phases. Ceramic materials were obtained by uniaxial pressing at 196 MPa and sintering at 1250 °C for 4 h in the tube furnace. SEM images at the free surface showed that substitution of Ni2+ ions with Zn2+ ions results in larger grains and lower porosity, confirmed by density
measurements.
Magnetization results showed ferromagnetic behavior of the NF and NZF
materials. Magnetic measurements of ferrites were carried out and presented in Fig. 1.
Saturation magnetization moment of NF was lower than for N0.7Z0.3F and N0.5Z0.5F, but
slightly higher than for N0.3Z0.7F. With increasing the ratio of Zn to 0.3, magnetization
increases, because the Fe3+ ions in the octahedral site interact with other Fe3+ ions. The
fields at which saturation occur was almost the same for all materials.",
publisher = "Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia",
journal = "The Third Early Stage Researchers Workshop” COST MP0904 - SIMUFER Novi Sad, Serbia, November 6-9, 2013",
title = "SYNTHESIS AND CHARACTERIZATION OF NICKEL ZINC FERRITES",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2623"
}

Džunuzović, A., Ilić, N., Bobić, J., Vijatović Petrović, M., Curecheriu, L.,& Stojanović, B.. (2013). SYNTHESIS AND CHARACTERIZATION OF NICKEL ZINC FERRITES. in The Third Early Stage Researchers Workshop” COST MP0904 - SIMUFER Novi Sad, Serbia, November 6-9, 2013
Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia..
https://hdl.handle.net/21.15107/rcub_rimsi_2623

Džunuzović A, Ilić N, Bobić J, Vijatović Petrović M, Curecheriu L, Stojanović B. SYNTHESIS AND CHARACTERIZATION OF NICKEL ZINC FERRITES. in The Third Early Stage Researchers Workshop” COST MP0904 - SIMUFER Novi Sad, Serbia, November 6-9, 2013. 2013;.
https://hdl.handle.net/21.15107/rcub_rimsi_2623 .

Džunuzović, Adis, Ilić, Nikola, Bobić, Jelena, Vijatović Petrović, Mirjana, Curecheriu, Lavinia-Petronela, Stojanović, Biljana, "SYNTHESIS AND CHARACTERIZATION OF NICKEL ZINC FERRITES" in The Third Early Stage Researchers Workshop” COST MP0904 - SIMUFER Novi Sad, Serbia, November 6-9, 2013 (2013),
https://hdl.handle.net/21.15107/rcub_rimsi_2623 .

TY  - CONF
AU  - Vojisavljević, Katarina
AU  - Stojanović, Biljana
AU  - Kmet, Brigita
AU  - Cilenšek, Jena
AU  - Malič, Barbara
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2917
AB  - Recently, a considerable effort has been devoted to research and improvement of both dielectrics and wide band-gap semiconductors for the realization of fully transparent devices. Due to the lack of available p-type transparent conducting oxide (TCO) materials, special attention was paid to production of delafossite structured CuMO2 (M = Al, Cr or Y), which exhibit sufficiently large energy gap, required for transparency across the full visible spectrum, and high enough concentration of holes with sufficiently large mobility. Those materials are considered to be good candidates for p-type TCOs. Among them, the CuAlO2 seems to be the most promising candidate to fulfill the demands for technical application. 
However, related studies on CuAlO2 are interested not only in examination of the transparent conducting oxides properties, but also in exploring its applications as a catalyst for the conversion of solar power to hydrogen energy, catalysts for steam reforming process and exhaust gas purification, room temperature ozone sensors, or thermoelectric devices. The performance of CuAlO2 in some of the mentioned applications could be optimized by increasing surface area and decreasing its particle size. Therefore, the synthesis of nanocrystalline CuAlO2 has been a hot topic for material chemists.
The nanocrystalline delafossite CuAlO2 powder was synthesised by a sol-gel nitrate-citrate self-sustained combustion route. Citric acid was introduced both as the chelating and reducing agent or fuel. The citric acid/metal ion ratio was adjusted to provide fuel-lean, stoichiometric or fuel-rich conditions of the redox reaction. Equimolar amounts of copper and aluminium nitrates and the citric acid were dissolved in deionized water. The solution was agitated at room temperature for 1 h, and then neutralized to increase the efficiency of chelating agent. After several hours of drying in temperature range 60 oC – 80 oC, the sol was turned to homogeneous viscous gel. During the rapid heating, the gels auto-ignited at approximately 250 oC (depending on the amount of the fuel) and underwent smouldering combustion spontaneously with the evolution of large amounts of gases, subsequently forming the grey-black voluminous precursor powders. 
According to the X-ray diffraction analysis the phase pure delafossite was obtained only when the precursor powder was prepared from the stoichiometric redox reaction, and after the calcination at 920 oC for 4 h in Ar atmosphere. The field emission scanning electron micrographs revealed the cauliflower aspect of the calcined powder, where small primary particles formed the agglomerates. The formation of the phase pure CuAlO2 powder was also confirmed by Fourier transformed infrared spectroscopy. 
Compared with the solid state synthesis where high processing temperatures (1100 oC) and long reaction times (96 h) have been used to obtain single-phase delafossite CuAlO2 [1, 2], both the calcination temperature and the dwell time are certainly lowered by the proposed citrate-nitrate combustion route.

References: 
[1] Liou, Y.C.; Lee, U.R. J. Alloys Comp. 467,:496(2009).
[2] Zheng, X.G.; Taniguchi, K.; Takahashi, A.; Liu, Y.; Xu, C.N. Appl. Phys. Lett. 85, 1728(2004).

Acknowledgments:
We acknowledge the financial support of the Slovenian research agency (research programme P2-0105 and projects J2-4273) and the EC within the 7FP ORAMA project: Oxide materials for electronics applications, Grant Agreement NMP3-LA-2010-246334.
PB  - Ljubljana : Jožef Stefan Institute, 2013
C3  - SLONANO
T1  - Self-sustained combustion synthesis of the p-type nanocrystalline CuAlO2 powder
EP  - 79
SP  - 79
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2917
ER  - 

@conference{
author = "Vojisavljević, Katarina and Stojanović, Biljana and Kmet, Brigita and Cilenšek, Jena and Malič, Barbara",
year = "2013",
abstract = "Recently, a considerable effort has been devoted to research and improvement of both dielectrics and wide band-gap semiconductors for the realization of fully transparent devices. Due to the lack of available p-type transparent conducting oxide (TCO) materials, special attention was paid to production of delafossite structured CuMO2 (M = Al, Cr or Y), which exhibit sufficiently large energy gap, required for transparency across the full visible spectrum, and high enough concentration of holes with sufficiently large mobility. Those materials are considered to be good candidates for p-type TCOs. Among them, the CuAlO2 seems to be the most promising candidate to fulfill the demands for technical application. 
However, related studies on CuAlO2 are interested not only in examination of the transparent conducting oxides properties, but also in exploring its applications as a catalyst for the conversion of solar power to hydrogen energy, catalysts for steam reforming process and exhaust gas purification, room temperature ozone sensors, or thermoelectric devices. The performance of CuAlO2 in some of the mentioned applications could be optimized by increasing surface area and decreasing its particle size. Therefore, the synthesis of nanocrystalline CuAlO2 has been a hot topic for material chemists.
The nanocrystalline delafossite CuAlO2 powder was synthesised by a sol-gel nitrate-citrate self-sustained combustion route. Citric acid was introduced both as the chelating and reducing agent or fuel. The citric acid/metal ion ratio was adjusted to provide fuel-lean, stoichiometric or fuel-rich conditions of the redox reaction. Equimolar amounts of copper and aluminium nitrates and the citric acid were dissolved in deionized water. The solution was agitated at room temperature for 1 h, and then neutralized to increase the efficiency of chelating agent. After several hours of drying in temperature range 60 oC – 80 oC, the sol was turned to homogeneous viscous gel. During the rapid heating, the gels auto-ignited at approximately 250 oC (depending on the amount of the fuel) and underwent smouldering combustion spontaneously with the evolution of large amounts of gases, subsequently forming the grey-black voluminous precursor powders. 
According to the X-ray diffraction analysis the phase pure delafossite was obtained only when the precursor powder was prepared from the stoichiometric redox reaction, and after the calcination at 920 oC for 4 h in Ar atmosphere. The field emission scanning electron micrographs revealed the cauliflower aspect of the calcined powder, where small primary particles formed the agglomerates. The formation of the phase pure CuAlO2 powder was also confirmed by Fourier transformed infrared spectroscopy. 
Compared with the solid state synthesis where high processing temperatures (1100 oC) and long reaction times (96 h) have been used to obtain single-phase delafossite CuAlO2 [1, 2], both the calcination temperature and the dwell time are certainly lowered by the proposed citrate-nitrate combustion route.

References: 
[1] Liou, Y.C.; Lee, U.R. J. Alloys Comp. 467,:496(2009).
[2] Zheng, X.G.; Taniguchi, K.; Takahashi, A.; Liu, Y.; Xu, C.N. Appl. Phys. Lett. 85, 1728(2004).

Acknowledgments:
We acknowledge the financial support of the Slovenian research agency (research programme P2-0105 and projects J2-4273) and the EC within the 7FP ORAMA project: Oxide materials for electronics applications, Grant Agreement NMP3-LA-2010-246334.",
publisher = "Ljubljana : Jožef Stefan Institute, 2013",
journal = "SLONANO",
title = "Self-sustained combustion synthesis of the p-type nanocrystalline CuAlO2 powder",
pages = "79-79",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2917"
}

Vojisavljević, K., Stojanović, B., Kmet, B., Cilenšek, J.,& Malič, B.. (2013). Self-sustained combustion synthesis of the p-type nanocrystalline CuAlO2 powder. in SLONANO
Ljubljana : Jožef Stefan Institute, 2013., 79-79.
https://hdl.handle.net/21.15107/rcub_rimsi_2917

Vojisavljević K, Stojanović B, Kmet B, Cilenšek J, Malič B. Self-sustained combustion synthesis of the p-type nanocrystalline CuAlO2 powder. in SLONANO. 2013;:79-79.
https://hdl.handle.net/21.15107/rcub_rimsi_2917 .

Vojisavljević, Katarina, Stojanović, Biljana, Kmet, Brigita, Cilenšek, Jena, Malič, Barbara, "Self-sustained combustion synthesis of the p-type nanocrystalline CuAlO2 powder" in SLONANO (2013):79-79,
https://hdl.handle.net/21.15107/rcub_rimsi_2917 .

TY  - CONF
AU  - Bobić, Jelena
AU  - Vijatović Petrović, Mirjana
AU  - Greičius, Simonas
AU  - Banys, Juras
AU  - Stojanović, Biljana
PY  - 2011
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2854
AB  - Family of bismuth oxides was discovered more than 50 years ago by Aurivillius. Recently, there has been renewed interest in the properties of the Aurivillius phases as temperature-stable ferro-piezoelectrics. Several bismuth-layered crystal structures and their properties have been investigated in detail. However, a lot of aspects of the preparation and properties of barium bismuth titanate, BaBi4Ti4O15 [BBiT] remain unexplored, whereas being promising candidate for high-temperature piezoelectric applications, memory application and ferroelectric nonvolatile memories (Fe-RAM). In present work, BBiT was prepared by solid state reaction from mixture of oxides: BaO, TiO2 and Bi2O3 which was previously milled for 6 h (MA). The mixture was heated at 750 oC for 4 h. As a comparison, the same ceramics were prepared throught conventional solid state reaction (CSS). The same oxides mixture was homogenized for 24 h in isopropanol as a liquid medium and calcinated at 950 oC for 4 h which is 200 oC higher temperature than for MA procedure. Sintering process was carried out at    1130 oC for 1 h in both synthesis methods. Smaller plate like grains are noticed in BBiT ceramics prepared from powders obtained by MA process comparing to CSS process. In the temperature dependence of the dielectric permittivity, the maximum associated to the Curie temperature was higher and narrower in ceramics prepared by CSS method. Influence of the grain and grain boundaries contribution to the dielectric behaviour in both ceramics were analyzed  through impedance spectroscopy.
PB  - Materials Research Society of Serbia, Crna Gora
C3  - VII International Conference on Mechanochemistry and Mechanical Alloying INCOME, 31 August-3 September, 2011, Herceg Novi, Montenegro, Programme and the book of abstracts, p 81
T1  - INFLUECE OF PROCESSING METHOD ON DIELECTRIC PROPERTIES OF BaBi4Ti4O15 CERAMICS
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2854
ER  - 

@conference{
author = "Bobić, Jelena and Vijatović Petrović, Mirjana and Greičius, Simonas and Banys, Juras and Stojanović, Biljana",
year = "2011",
abstract = "Family of bismuth oxides was discovered more than 50 years ago by Aurivillius. Recently, there has been renewed interest in the properties of the Aurivillius phases as temperature-stable ferro-piezoelectrics. Several bismuth-layered crystal structures and their properties have been investigated in detail. However, a lot of aspects of the preparation and properties of barium bismuth titanate, BaBi4Ti4O15 [BBiT] remain unexplored, whereas being promising candidate for high-temperature piezoelectric applications, memory application and ferroelectric nonvolatile memories (Fe-RAM). In present work, BBiT was prepared by solid state reaction from mixture of oxides: BaO, TiO2 and Bi2O3 which was previously milled for 6 h (MA). The mixture was heated at 750 oC for 4 h. As a comparison, the same ceramics were prepared throught conventional solid state reaction (CSS). The same oxides mixture was homogenized for 24 h in isopropanol as a liquid medium and calcinated at 950 oC for 4 h which is 200 oC higher temperature than for MA procedure. Sintering process was carried out at    1130 oC for 1 h in both synthesis methods. Smaller plate like grains are noticed in BBiT ceramics prepared from powders obtained by MA process comparing to CSS process. In the temperature dependence of the dielectric permittivity, the maximum associated to the Curie temperature was higher and narrower in ceramics prepared by CSS method. Influence of the grain and grain boundaries contribution to the dielectric behaviour in both ceramics were analyzed  through impedance spectroscopy.",
publisher = "Materials Research Society of Serbia, Crna Gora",
journal = "VII International Conference on Mechanochemistry and Mechanical Alloying INCOME, 31 August-3 September, 2011, Herceg Novi, Montenegro, Programme and the book of abstracts, p 81",
title = "INFLUECE OF PROCESSING METHOD ON DIELECTRIC PROPERTIES OF BaBi4Ti4O15 CERAMICS",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2854"
}

Bobić, J., Vijatović Petrović, M., Greičius, S., Banys, J.,& Stojanović, B.. (2011). INFLUECE OF PROCESSING METHOD ON DIELECTRIC PROPERTIES OF BaBi4Ti4O15 CERAMICS. in VII International Conference on Mechanochemistry and Mechanical Alloying INCOME, 31 August-3 September, 2011, Herceg Novi, Montenegro, Programme and the book of abstracts, p 81
Materials Research Society of Serbia, Crna Gora..
https://hdl.handle.net/21.15107/rcub_rimsi_2854

Bobić J, Vijatović Petrović M, Greičius S, Banys J, Stojanović B. INFLUECE OF PROCESSING METHOD ON DIELECTRIC PROPERTIES OF BaBi4Ti4O15 CERAMICS. in VII International Conference on Mechanochemistry and Mechanical Alloying INCOME, 31 August-3 September, 2011, Herceg Novi, Montenegro, Programme and the book of abstracts, p 81. 2011;.
https://hdl.handle.net/21.15107/rcub_rimsi_2854 .

Bobić, Jelena, Vijatović Petrović, Mirjana, Greičius, Simonas, Banys, Juras, Stojanović, Biljana, "INFLUECE OF PROCESSING METHOD ON DIELECTRIC PROPERTIES OF BaBi4Ti4O15 CERAMICS" in VII International Conference on Mechanochemistry and Mechanical Alloying INCOME, 31 August-3 September, 2011, Herceg Novi, Montenegro, Programme and the book of abstracts, p 81 (2011),
https://hdl.handle.net/21.15107/rcub_rimsi_2854 .

TY  - CONF
AU  - Bobić, Jelena
AU  - Stojanović, Biljana
AU  - Vijatović Petrović, Mirjana
AU  - Rojac, Tadej
PY  - 2008
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2679
AB  - Barium bismuth titanate (BaBi4Ti4O15 - BBiT) is an n=4 member of the Bi-base-layer-
structure ferroelectric oxide family (Aurivillius phase). A lot of aspects of the
preparation and properties of BBiTremain unexplored, whereas being promising candidate
for high temperature lead free piezoelectric device, memory application and ferroelectric
nonvolatile memories (Fe-RAM) [1,2]'
Barium-bismuth titanate BBiT was prepared from stoichiometric quantities of
BaTi3O12 and Bi4Ti4O12 obtained via mechanically assisted synthesis in planetary ball mill
BaTi3O12 has been synthesised from mixture of BaO and TiO2 and Bi4Ti3O12 was prepared
starling from Bi2O3 andTiO2, commercially available. Characterization of this powder was
carried by TG/DTA method.s and measuring particle size distribution. Sintering curve of
powder mixture of BT and BiT is presented on Fig. l. This result is used to determinate
appropriate temperature of sintering. The temperature range of sintering is narrow from
1100C to 1140C.
PB  - COST Action 539 - ELENA 4'th Workshop, Genoa, June 26-28, 2008
C3  - COST Action 539 - ELENA 4'th Workshop, Genoa, June 26-28, 2008
T1  - CHARACTERIZATION OF BARIUM BISMUTH TITANATE PREPARED BY MECHANICAL ASSISTED SYNTHESIS
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2679
ER  - 

@conference{
author = "Bobić, Jelena and Stojanović, Biljana and Vijatović Petrović, Mirjana and Rojac, Tadej",
year = "2008",
abstract = "Barium bismuth titanate (BaBi4Ti4O15 - BBiT) is an n=4 member of the Bi-base-layer-
structure ferroelectric oxide family (Aurivillius phase). A lot of aspects of the
preparation and properties of BBiTremain unexplored, whereas being promising candidate
for high temperature lead free piezoelectric device, memory application and ferroelectric
nonvolatile memories (Fe-RAM) [1,2]'
Barium-bismuth titanate BBiT was prepared from stoichiometric quantities of
BaTi3O12 and Bi4Ti4O12 obtained via mechanically assisted synthesis in planetary ball mill
BaTi3O12 has been synthesised from mixture of BaO and TiO2 and Bi4Ti3O12 was prepared
starling from Bi2O3 andTiO2, commercially available. Characterization of this powder was
carried by TG/DTA method.s and measuring particle size distribution. Sintering curve of
powder mixture of BT and BiT is presented on Fig. l. This result is used to determinate
appropriate temperature of sintering. The temperature range of sintering is narrow from
1100C to 1140C.",
publisher = "COST Action 539 - ELENA 4'th Workshop, Genoa, June 26-28, 2008",
journal = "COST Action 539 - ELENA 4'th Workshop, Genoa, June 26-28, 2008",
title = "CHARACTERIZATION OF BARIUM BISMUTH TITANATE PREPARED BY MECHANICAL ASSISTED SYNTHESIS",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2679"
}

Bobić, J., Stojanović, B., Vijatović Petrović, M.,& Rojac, T.. (2008). CHARACTERIZATION OF BARIUM BISMUTH TITANATE PREPARED BY MECHANICAL ASSISTED SYNTHESIS. in COST Action 539 - ELENA 4'th Workshop, Genoa, June 26-28, 2008
COST Action 539 - ELENA 4'th Workshop, Genoa, June 26-28, 2008..
https://hdl.handle.net/21.15107/rcub_rimsi_2679

Bobić J, Stojanović B, Vijatović Petrović M, Rojac T. CHARACTERIZATION OF BARIUM BISMUTH TITANATE PREPARED BY MECHANICAL ASSISTED SYNTHESIS. in COST Action 539 - ELENA 4'th Workshop, Genoa, June 26-28, 2008. 2008;.
https://hdl.handle.net/21.15107/rcub_rimsi_2679 .

Bobić, Jelena, Stojanović, Biljana, Vijatović Petrović, Mirjana, Rojac, Tadej, "CHARACTERIZATION OF BARIUM BISMUTH TITANATE PREPARED BY MECHANICAL ASSISTED SYNTHESIS" in COST Action 539 - ELENA 4'th Workshop, Genoa, June 26-28, 2008 (2008),
https://hdl.handle.net/21.15107/rcub_rimsi_2679 .

TY  - CONF
AU  - Vijatović Petrović, Mirjana
AU  - Bobić, Jelena
AU  - ZAGHETE, MARIA
AU  - Zivkovic, Ljiljana
AU  - Stojanović, Biljana
PY  - 2008
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2690
AB  - As a first discovered ferroelectric ceramic, barium titanate has become one of the
most extensively investigated ceramic materials used in electronics. For many years, A- and
B-site dopants have been used to modify the electrical properties of BaTiO3. in this paper,
barium titanate doped with 0.3 mol% of lanthanum and sintered at different sintering times
was investigated. Doped barium titanate nanopowder was prepared by doping pure barium
titanate starting from citrate solutions of all components: barium, titanium and lanthanum.
Experimental procedure was given in detail in previous reports. Obtained powders were
pressed in to pellets and sintered at 1300 "C for 2 and 16h in air atmosphere. The formation
of phase and crystal structure of BaTiO3 was carried out by XRD analysis. Microstructural
properties such as grain size distribution and morphology of sintered samples were
determined using scanning electron microscope. Measurement of dielectric constant and
dielectric losses was provided in the frequency range of 20 to 106 Hz. The variation of the
dielectric constant with temperature was measured in temperature interval from 20 to 180 oC.
. The XRD analysis of doped barium titanate indicates the formation of tetragonal
phase in samples sintered at both sintering times. Lanthanum has an influence on grain growth and shape of grains in doped barium titanate [2]. It was detected that the grain-size
also depends on sintering time. It can be notified the effect of lanthanum and sintering time
on dielectric constant. Lanthanum also has influence on decreasing the Curie temperature
of barium titanate. No frequency dependence of dielectric constant,was detected.
PB  - 4'n Workshop Fabrication, Properties & Applications of Electroceramic Nanostructures, Abstracts June 26-28,2008 Genoa, Italy
C3  - 4'n Workshop Fabrication, Properties & Applications of Electroceramic Nanostructures, Abstracts June 26-28,2008 Genoa, Italy
T1  - PROPERTIES OF LANTHANUM DOPED BARIUM TITANATE PRODUCED FROM NANOPOWDERS
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2690
ER  - 

@conference{
author = "Vijatović Petrović, Mirjana and Bobić, Jelena and ZAGHETE, MARIA and Zivkovic, Ljiljana and Stojanović, Biljana",
year = "2008",
abstract = "As a first discovered ferroelectric ceramic, barium titanate has become one of the
most extensively investigated ceramic materials used in electronics. For many years, A- and
B-site dopants have been used to modify the electrical properties of BaTiO3. in this paper,
barium titanate doped with 0.3 mol% of lanthanum and sintered at different sintering times
was investigated. Doped barium titanate nanopowder was prepared by doping pure barium
titanate starting from citrate solutions of all components: barium, titanium and lanthanum.
Experimental procedure was given in detail in previous reports. Obtained powders were
pressed in to pellets and sintered at 1300 "C for 2 and 16h in air atmosphere. The formation
of phase and crystal structure of BaTiO3 was carried out by XRD analysis. Microstructural
properties such as grain size distribution and morphology of sintered samples were
determined using scanning electron microscope. Measurement of dielectric constant and
dielectric losses was provided in the frequency range of 20 to 106 Hz. The variation of the
dielectric constant with temperature was measured in temperature interval from 20 to 180 oC.
. The XRD analysis of doped barium titanate indicates the formation of tetragonal
phase in samples sintered at both sintering times. Lanthanum has an influence on grain growth and shape of grains in doped barium titanate [2]. It was detected that the grain-size
also depends on sintering time. It can be notified the effect of lanthanum and sintering time
on dielectric constant. Lanthanum also has influence on decreasing the Curie temperature
of barium titanate. No frequency dependence of dielectric constant,was detected.",
publisher = "4'n Workshop Fabrication, Properties & Applications of Electroceramic Nanostructures, Abstracts June 26-28,2008 Genoa, Italy",
journal = "4'n Workshop Fabrication, Properties & Applications of Electroceramic Nanostructures, Abstracts June 26-28,2008 Genoa, Italy",
title = "PROPERTIES OF LANTHANUM DOPED BARIUM TITANATE PRODUCED FROM NANOPOWDERS",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2690"
}

Vijatović Petrović, M., Bobić, J., ZAGHETE, M., Zivkovic, L.,& Stojanović, B.. (2008). PROPERTIES OF LANTHANUM DOPED BARIUM TITANATE PRODUCED FROM NANOPOWDERS. in 4'n Workshop Fabrication, Properties & Applications of Electroceramic Nanostructures, Abstracts June 26-28,2008 Genoa, Italy
4'n Workshop Fabrication, Properties & Applications of Electroceramic Nanostructures, Abstracts June 26-28,2008 Genoa, Italy..
https://hdl.handle.net/21.15107/rcub_rimsi_2690

Vijatović Petrović M, Bobić J, ZAGHETE M, Zivkovic L, Stojanović B. PROPERTIES OF LANTHANUM DOPED BARIUM TITANATE PRODUCED FROM NANOPOWDERS. in 4'n Workshop Fabrication, Properties & Applications of Electroceramic Nanostructures, Abstracts June 26-28,2008 Genoa, Italy. 2008;.
https://hdl.handle.net/21.15107/rcub_rimsi_2690 .

Vijatović Petrović, Mirjana, Bobić, Jelena, ZAGHETE, MARIA, Zivkovic, Ljiljana, Stojanović, Biljana, "PROPERTIES OF LANTHANUM DOPED BARIUM TITANATE PRODUCED FROM NANOPOWDERS" in 4'n Workshop Fabrication, Properties & Applications of Electroceramic Nanostructures, Abstracts June 26-28,2008 Genoa, Italy (2008),
https://hdl.handle.net/21.15107/rcub_rimsi_2690 .

TY  - CONF
AU  - Bobić, Jelena
AU  - Zivkovic, Ljiljana
AU  - Cilense, Mario
AU  - Vijatović Petrović, Mirjana
AU  - Stojanović, Biljana
PY  - 2007
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2666
AB  - Scveral bismuth-layered crystal structure and their properties have been investigated-
in detail. However, a lot of aspects of the preparation and properties of barium bismuth
titanate unexplored, whereas being promising candidate for memory applications.
In present work barium-bismuth titanate (BaBi4Ti4O15-BBT) was prepared from stoichiometric, quantities of barium titanate and bisrnuth titanate obtained via mechanochemical
synthesis. Barium titanate (BaTi3O12:-BT) has been synthesised from michture of BaO and
Tio2 and bismuth titanate (Bi4Ti3O12-BIT) was prepared starting frorn Bi2O3 and TiO2
commercially available. Mechanochemical synthesis was performed in air atmosphere in ,
planetary ball mill, for BT during 60 min and for BIT during 360 min. Milling condition
were: zirconium oxide jars and zirconium oxide balls, ball-to-powder weight ration 20:1
and determined basic disc and disc with jars rotation speed. The powder mixture of BT and
BIT was homogenized for 30 min and after that sintered at 1100"C for 4h. Separatly, BIT
was sintered at 1000 C for 12h, in both cases without pre-calcination step and by
conventional sintering technique.
The Fig. I. shows the phase formation and crystal structure of BIT, BT and mixture
of this powders. Pattern of BBT powder sintered at 1100.c for 4h was analysed by XRD
analysis revealing the existence of tetragonal phase (Fig. 2.). The morphology of obtained powders was examined by SEM and TEM method (Fig. 3. and Fig. 4.). It can be conclude that pattern of BIT consists of nanoparticles which size is less than 20 nm. Mixture of BIT and BT consists of agglomerates of varying size and morphology which size is about 250 nm. The microstructure development of BIT and BBT ceramics was followed by SEM.
From Fig 5. and Fig. 6. it can be observed that BIT consists of plate-like grains but in the
case of BBT beside plate-like grains exist and spheric grains, also' It is evident
addition leads to the change in the microstructure development.
PB  - COST Action 539 - ELENA 3'd Workshop, Bled, September 2, 2007
C3  - COST Action 539 - ELENA 3'd Workshop, Bled, September 2, 2007
T1  - MICROSTRUCTURE DEVELOPMENT OF Bi4Ti3O12 AND BaBi4Ti4O15 CERAMICS PREPARED BY MECHANOCHEMICAL SYNTHESIS
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2666
ER  - 

@conference{
author = "Bobić, Jelena and Zivkovic, Ljiljana and Cilense, Mario and Vijatović Petrović, Mirjana and Stojanović, Biljana",
year = "2007",
abstract = "Scveral bismuth-layered crystal structure and their properties have been investigated-
in detail. However, a lot of aspects of the preparation and properties of barium bismuth
titanate unexplored, whereas being promising candidate for memory applications.
In present work barium-bismuth titanate (BaBi4Ti4O15-BBT) was prepared from stoichiometric, quantities of barium titanate and bisrnuth titanate obtained via mechanochemical
synthesis. Barium titanate (BaTi3O12:-BT) has been synthesised from michture of BaO and
Tio2 and bismuth titanate (Bi4Ti3O12-BIT) was prepared starting frorn Bi2O3 and TiO2
commercially available. Mechanochemical synthesis was performed in air atmosphere in ,
planetary ball mill, for BT during 60 min and for BIT during 360 min. Milling condition
were: zirconium oxide jars and zirconium oxide balls, ball-to-powder weight ration 20:1
and determined basic disc and disc with jars rotation speed. The powder mixture of BT and
BIT was homogenized for 30 min and after that sintered at 1100"C for 4h. Separatly, BIT
was sintered at 1000 C for 12h, in both cases without pre-calcination step and by
conventional sintering technique.
The Fig. I. shows the phase formation and crystal structure of BIT, BT and mixture
of this powders. Pattern of BBT powder sintered at 1100.c for 4h was analysed by XRD
analysis revealing the existence of tetragonal phase (Fig. 2.). The morphology of obtained powders was examined by SEM and TEM method (Fig. 3. and Fig. 4.). It can be conclude that pattern of BIT consists of nanoparticles which size is less than 20 nm. Mixture of BIT and BT consists of agglomerates of varying size and morphology which size is about 250 nm. The microstructure development of BIT and BBT ceramics was followed by SEM.
From Fig 5. and Fig. 6. it can be observed that BIT consists of plate-like grains but in the
case of BBT beside plate-like grains exist and spheric grains, also' It is evident
addition leads to the change in the microstructure development.",
publisher = "COST Action 539 - ELENA 3'd Workshop, Bled, September 2, 2007",
journal = "COST Action 539 - ELENA 3'd Workshop, Bled, September 2, 2007",
title = "MICROSTRUCTURE DEVELOPMENT OF Bi4Ti3O12 AND BaBi4Ti4O15 CERAMICS PREPARED BY MECHANOCHEMICAL SYNTHESIS",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2666"
}

Bobić, J., Zivkovic, L., Cilense, M., Vijatović Petrović, M.,& Stojanović, B.. (2007). MICROSTRUCTURE DEVELOPMENT OF Bi4Ti3O12 AND BaBi4Ti4O15 CERAMICS PREPARED BY MECHANOCHEMICAL SYNTHESIS. in COST Action 539 - ELENA 3'd Workshop, Bled, September 2, 2007
COST Action 539 - ELENA 3'd Workshop, Bled, September 2, 2007..
https://hdl.handle.net/21.15107/rcub_rimsi_2666

Bobić J, Zivkovic L, Cilense M, Vijatović Petrović M, Stojanović B. MICROSTRUCTURE DEVELOPMENT OF Bi4Ti3O12 AND BaBi4Ti4O15 CERAMICS PREPARED BY MECHANOCHEMICAL SYNTHESIS. in COST Action 539 - ELENA 3'd Workshop, Bled, September 2, 2007. 2007;.
https://hdl.handle.net/21.15107/rcub_rimsi_2666 .

Bobić, Jelena, Zivkovic, Ljiljana, Cilense, Mario, Vijatović Petrović, Mirjana, Stojanović, Biljana, "MICROSTRUCTURE DEVELOPMENT OF Bi4Ti3O12 AND BaBi4Ti4O15 CERAMICS PREPARED BY MECHANOCHEMICAL SYNTHESIS" in COST Action 539 - ELENA 3'd Workshop, Bled, September 2, 2007 (2007),
https://hdl.handle.net/21.15107/rcub_rimsi_2666 .

TY  - CONF
AU  - Vijatović Petrović, Mirjana
AU  - ZAGHETE, MARIA
AU  - Vasić, Miloš
AU  - Zivkovic, Ljiljana
AU  - Stojanović, Biljana
PY  - 2006
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2693
AB  - Barium titanate (BaTiO3) has been used in many applications such as multilayer
capacitors, piezoelectric ceramics, transducer devices, PTC resistor and has become one of
the most important ferroelectric ceramics. It is used extensively in ceramic capacitors, due to
its high dielectric constant and low loss characteristics.
Barium titanate was prepared by two methods, polymeric organometallic precursors
process and mechanochemicaly. X ray and SEM were used for caracterization of powders
and sintered samples. In both ways of synthesis the formation of cubic phase is obtained. It
can be observed that in the case of Pechini process BaTiO3 powder is well crystallized but in
the case of mechanochemically process, significant amount of amorphous phase was detected.
The sintered samples at 1300'C for 2h, prepared by Pechini process, shows the formation of
tetragonal phase. The morphology of the powders consists of particles and its agglomerates,
their dimensions depend of the synthesis method. The powder prepared mechanochemicaly
posses more agglomerates. The particles are bigger and with irregular shape. Average particle
size is about 100 nm and 250 nm for Pechini and mechanochemical process, respectively. In
sintered samples, prepared by Pechini process, at 1300oC for 2h is observed two types of
domain configuration. The wall thickness ranges from 0.08 pm up to 0.14 pm and from 0.14
Fm up to 0.17 pm for 90' and 180'domains respectably. The domain width is around 0.20
micron for both types of domains.
PB  - COST Action 539 - ELENA 2'd Workshop, Brussels, November 15-16, 2006
C3  - COST Action 539 - ELENA 2'd Workshop, Brussels, November 15-16, 2006
T1  - EFFECT OF POWDER SYNTHESIS ON CRYSTAL AND MICROSTRUCTURE OF BaTiO3
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2693
ER  - 

@conference{
author = "Vijatović Petrović, Mirjana and ZAGHETE, MARIA and Vasić, Miloš and Zivkovic, Ljiljana and Stojanović, Biljana",
year = "2006",
abstract = "Barium titanate (BaTiO3) has been used in many applications such as multilayer
capacitors, piezoelectric ceramics, transducer devices, PTC resistor and has become one of
the most important ferroelectric ceramics. It is used extensively in ceramic capacitors, due to
its high dielectric constant and low loss characteristics.
Barium titanate was prepared by two methods, polymeric organometallic precursors
process and mechanochemicaly. X ray and SEM were used for caracterization of powders
and sintered samples. In both ways of synthesis the formation of cubic phase is obtained. It
can be observed that in the case of Pechini process BaTiO3 powder is well crystallized but in
the case of mechanochemically process, significant amount of amorphous phase was detected.
The sintered samples at 1300'C for 2h, prepared by Pechini process, shows the formation of
tetragonal phase. The morphology of the powders consists of particles and its agglomerates,
their dimensions depend of the synthesis method. The powder prepared mechanochemicaly
posses more agglomerates. The particles are bigger and with irregular shape. Average particle
size is about 100 nm and 250 nm for Pechini and mechanochemical process, respectively. In
sintered samples, prepared by Pechini process, at 1300oC for 2h is observed two types of
domain configuration. The wall thickness ranges from 0.08 pm up to 0.14 pm and from 0.14
Fm up to 0.17 pm for 90' and 180'domains respectably. The domain width is around 0.20
micron for both types of domains.",
publisher = "COST Action 539 - ELENA 2'd Workshop, Brussels, November 15-16, 2006",
journal = "COST Action 539 - ELENA 2'd Workshop, Brussels, November 15-16, 2006",
title = "EFFECT OF POWDER SYNTHESIS ON CRYSTAL AND MICROSTRUCTURE OF BaTiO3",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2693"
}

Vijatović Petrović, M., ZAGHETE, M., Vasić, M., Zivkovic, L.,& Stojanović, B.. (2006). EFFECT OF POWDER SYNTHESIS ON CRYSTAL AND MICROSTRUCTURE OF BaTiO3. in COST Action 539 - ELENA 2'd Workshop, Brussels, November 15-16, 2006
COST Action 539 - ELENA 2'd Workshop, Brussels, November 15-16, 2006..
https://hdl.handle.net/21.15107/rcub_rimsi_2693

Vijatović Petrović M, ZAGHETE M, Vasić M, Zivkovic L, Stojanović B. EFFECT OF POWDER SYNTHESIS ON CRYSTAL AND MICROSTRUCTURE OF BaTiO3. in COST Action 539 - ELENA 2'd Workshop, Brussels, November 15-16, 2006. 2006;.
https://hdl.handle.net/21.15107/rcub_rimsi_2693 .

Vijatović Petrović, Mirjana, ZAGHETE, MARIA, Vasić, Miloš, Zivkovic, Ljiljana, Stojanović, Biljana, "EFFECT OF POWDER SYNTHESIS ON CRYSTAL AND MICROSTRUCTURE OF BaTiO3" in COST Action 539 - ELENA 2'd Workshop, Brussels, November 15-16, 2006 (2006),
https://hdl.handle.net/21.15107/rcub_rimsi_2693 .