TY  - JOUR
AU  - Bobić, Jelena
AU  - Vijatović Petrović, Mirjana
AU  - Banys, J
AU  - Stojanović, Biljana D
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/698
AB  - Pure and lanthanum doped barium bismuth titanate BaBi4-xLaxTi4O15 (BBLT, x=0, 0.05, 0.15, 0.30) ceramics were prepared utilizing solid state method. The X-ray diffraction (XRD) data confirmed formation of single-phase Aurivillius compounds while SEM micrographs did not show evident grain size change of doped ceramics. Dielectric properties were investigated in 1.21 kHz to 1 MHz frequency range and in the temperature range of 20 to 727 C. When Bi3+ is substituted with La3+, a significant disorder was induced and the material exhibited broadening of the phase transition. Impedance analysis confirmed the presence of two semicircular arcs in doped samples suggesting the existence of grain and grain-boundary conduction. The dc-conductivity and activation energies were evaluated for all compositions.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Effect of La substitution on the structural and electrical properties of BaBi4-xLaxTi4O15
EP  - 8057
IS  - 7
SP  - 8049
VL  - 39
DO  - 10.1016/j.ceramint.2013.03.075
ER  - 

@article{
author = "Bobić, Jelena and Vijatović Petrović, Mirjana and Banys, J and Stojanović, Biljana D",
year = "2013",
abstract = "Pure and lanthanum doped barium bismuth titanate BaBi4-xLaxTi4O15 (BBLT, x=0, 0.05, 0.15, 0.30) ceramics were prepared utilizing solid state method. The X-ray diffraction (XRD) data confirmed formation of single-phase Aurivillius compounds while SEM micrographs did not show evident grain size change of doped ceramics. Dielectric properties were investigated in 1.21 kHz to 1 MHz frequency range and in the temperature range of 20 to 727 C. When Bi3+ is substituted with La3+, a significant disorder was induced and the material exhibited broadening of the phase transition. Impedance analysis confirmed the presence of two semicircular arcs in doped samples suggesting the existence of grain and grain-boundary conduction. The dc-conductivity and activation energies were evaluated for all compositions.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Effect of La substitution on the structural and electrical properties of BaBi4-xLaxTi4O15",
pages = "8057-8049",
number = "7",
volume = "39",
doi = "10.1016/j.ceramint.2013.03.075"
}

Bobić, J., Vijatović Petrović, M., Banys, J.,& Stojanović, B. D.. (2013). Effect of La substitution on the structural and electrical properties of BaBi4-xLaxTi4O15. in Ceramics International
Elsevier Sci Ltd, Oxford., 39(7), 8049-8057.
https://doi.org/10.1016/j.ceramint.2013.03.075

Bobić J, Vijatović Petrović M, Banys J, Stojanović BD. Effect of La substitution on the structural and electrical properties of BaBi4-xLaxTi4O15. in Ceramics International. 2013;39(7):8049-8057.
doi:10.1016/j.ceramint.2013.03.075 .

Bobić, Jelena, Vijatović Petrović, Mirjana, Banys, J, Stojanović, Biljana D, "Effect of La substitution on the structural and electrical properties of BaBi4-xLaxTi4O15" in Ceramics International, 39, no. 7 (2013):8049-8057,
https://doi.org/10.1016/j.ceramint.2013.03.075 . .

TY  - JOUR
AU  - Bobić, Jelena
AU  - Vijatović Petrović, Mirjana
AU  - Stojanović, Biljana D
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/663
AB  - The discovery of some Aurivillius materials with high Curie temperature or fatigue-free character suggests possible applications in high temperature piezoelectric devices or non-volatile ferroelectric random access memories. Furthermore, increasing concerns for environmental issues have promoted the study of new lead-free piezoelectric materials. Barium bismuth titanate (BaBi4Ti4O15), an Aurivillius compound, is promising candidate to replace lead-based materials, both as lead-free ferroelectric and high temperature piezoelectric. In this review paper, we report a detailed overview of crystal structure, different synthesis methods and characteristic properties of barium bismuth titanate ferroelectric materials.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Aurivillius BaBi4Ti4O15 based compounds: Structure, synthesis and properties
EP  - 110
IS  - 3
SP  - 97
VL  - 7
DO  - 10.2298/PAC1303097B
ER  - 

@article{
author = "Bobić, Jelena and Vijatović Petrović, Mirjana and Stojanović, Biljana D",
year = "2013",
abstract = "The discovery of some Aurivillius materials with high Curie temperature or fatigue-free character suggests possible applications in high temperature piezoelectric devices or non-volatile ferroelectric random access memories. Furthermore, increasing concerns for environmental issues have promoted the study of new lead-free piezoelectric materials. Barium bismuth titanate (BaBi4Ti4O15), an Aurivillius compound, is promising candidate to replace lead-based materials, both as lead-free ferroelectric and high temperature piezoelectric. In this review paper, we report a detailed overview of crystal structure, different synthesis methods and characteristic properties of barium bismuth titanate ferroelectric materials.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Aurivillius BaBi4Ti4O15 based compounds: Structure, synthesis and properties",
pages = "110-97",
number = "3",
volume = "7",
doi = "10.2298/PAC1303097B"
}

Bobić, J., Vijatović Petrović, M.,& Stojanović, B. D.. (2013). Aurivillius BaBi4Ti4O15 based compounds: Structure, synthesis and properties. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 7(3), 97-110.
https://doi.org/10.2298/PAC1303097B

Bobić J, Vijatović Petrović M, Stojanović BD. Aurivillius BaBi4Ti4O15 based compounds: Structure, synthesis and properties. in Processing and Application of Ceramics. 2013;7(3):97-110.
doi:10.2298/PAC1303097B .

Bobić, Jelena, Vijatović Petrović, Mirjana, Stojanović, Biljana D, "Aurivillius BaBi4Ti4O15 based compounds: Structure, synthesis and properties" in Processing and Application of Ceramics, 7, no. 3 (2013):97-110,
https://doi.org/10.2298/PAC1303097B . .

TY  - JOUR
AU  - Bobić, Jelena
AU  - Vijatović Petrović, Mirjana
AU  - Banys, J
AU  - Stojanović, Biljana D
PY  - 2012
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/615
AB  - BaBi4Ti4-5/4xNbxO15 (BBNTx, x = 0.0.05, 0.15, 0.30) ceramics have been prepared by solid state method. XRD data indicate the formation of single-phase-layered perovskites for all compositions. SEM micrographs suggest that the grain size decreases with Nb doping. The effect of niobium doping on the dielectric and relaxor behavior of BaBi4Ti4O15 ceramics was investigated in a wide range of temperatures (20-777 degrees C) and frequencies (1.21 kHz to 1 MHz). Nb doping influences T-c decrease as well as the decrease of dielectric permittivity at Curie temperature. At room temperature, undoped BaBi4Ti4O15 exhibits dielectric constant of similar to 204 at 100 kHz, that slightly increases with Nb doping. The conductivity of BBNT5 ceramics is found to be lower than that of other investigated compositions. The value of activation energy of sigma(DC) was found to be 0.89 eV, 1.01 eV, 0.93 eV and 0.71 eV for BBT, BBNT5, BBNT15 and BBNT30, respectively.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Materials Research Bulletin
T1  - Electrical properties of niobium doped barium bismuth-titanate ceramics
EP  - 1880
IS  - 8
SP  - 1874
VL  - 47
DO  - 10.1016/j.materresbull.2012.04.069
ER  - 

@article{
author = "Bobić, Jelena and Vijatović Petrović, Mirjana and Banys, J and Stojanović, Biljana D",
year = "2012",
abstract = "BaBi4Ti4-5/4xNbxO15 (BBNTx, x = 0.0.05, 0.15, 0.30) ceramics have been prepared by solid state method. XRD data indicate the formation of single-phase-layered perovskites for all compositions. SEM micrographs suggest that the grain size decreases with Nb doping. The effect of niobium doping on the dielectric and relaxor behavior of BaBi4Ti4O15 ceramics was investigated in a wide range of temperatures (20-777 degrees C) and frequencies (1.21 kHz to 1 MHz). Nb doping influences T-c decrease as well as the decrease of dielectric permittivity at Curie temperature. At room temperature, undoped BaBi4Ti4O15 exhibits dielectric constant of similar to 204 at 100 kHz, that slightly increases with Nb doping. The conductivity of BBNT5 ceramics is found to be lower than that of other investigated compositions. The value of activation energy of sigma(DC) was found to be 0.89 eV, 1.01 eV, 0.93 eV and 0.71 eV for BBT, BBNT5, BBNT15 and BBNT30, respectively.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Materials Research Bulletin",
title = "Electrical properties of niobium doped barium bismuth-titanate ceramics",
pages = "1880-1874",
number = "8",
volume = "47",
doi = "10.1016/j.materresbull.2012.04.069"
}

Bobić, J., Vijatović Petrović, M., Banys, J.,& Stojanović, B. D.. (2012). Electrical properties of niobium doped barium bismuth-titanate ceramics. in Materials Research Bulletin
Pergamon-Elsevier Science Ltd, Oxford., 47(8), 1874-1880.
https://doi.org/10.1016/j.materresbull.2012.04.069

Bobić J, Vijatović Petrović M, Banys J, Stojanović BD. Electrical properties of niobium doped barium bismuth-titanate ceramics. in Materials Research Bulletin. 2012;47(8):1874-1880.
doi:10.1016/j.materresbull.2012.04.069 .

Bobić, Jelena, Vijatović Petrović, Mirjana, Banys, J, Stojanović, Biljana D, "Electrical properties of niobium doped barium bismuth-titanate ceramics" in Materials Research Bulletin, 47, no. 8 (2012):1874-1880,
https://doi.org/10.1016/j.materresbull.2012.04.069 . .