TY  - JOUR
AU  - Paunović, Vesna
AU  - Mitić, Vojislav
AU  - Pavlović, Vladimir
AU  - Miljković, Miroslav
AU  - Živković, Ljiljana
PY  - 2010
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2350
AB  - La/Mn codoped BaTiO3 with different La2O3 content, ranging from 0.1 to 5.0 at% La, was investigated regarding their microstructural and dielectric characteristics. The content of 0.05 at% Mn was constant in all investigated samples. The samples were sintered at 1320°C and 1350°C for two hours. Microstructural studies were done using SEM and EDS analysis. The fine-grained microstructure was obtained even for low content of La. The appearance of secondary abnormal grains with serrated features along grain boundaries was observed in 1.0 at% La-BaTiO3 sintered at 1350°C. Nearly flat permittivity-temperature response was obtained in specimens with 2.0 and 5.0 at% La. Using the modified Curie-Weiss law a critical exponent γ and C' were calculated. The obtained values of γ pointed out the diffuse phase transformation in heavily doped BaTiO3 and great departure from the Curie-Weiss law for low doped ceramics.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Microstructure evolution and phase transition in La/Mn doped barium titanate ceramics
EP  - 258
IS  - 4
SP  - 253
VL  - 4
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_2350
ER  - 

@article{
author = "Paunović, Vesna and Mitić, Vojislav and Pavlović, Vladimir and Miljković, Miroslav and Živković, Ljiljana",
year = "2010",
abstract = "La/Mn codoped BaTiO3 with different La2O3 content, ranging from 0.1 to 5.0 at% La, was investigated regarding their microstructural and dielectric characteristics. The content of 0.05 at% Mn was constant in all investigated samples. The samples were sintered at 1320°C and 1350°C for two hours. Microstructural studies were done using SEM and EDS analysis. The fine-grained microstructure was obtained even for low content of La. The appearance of secondary abnormal grains with serrated features along grain boundaries was observed in 1.0 at% La-BaTiO3 sintered at 1350°C. Nearly flat permittivity-temperature response was obtained in specimens with 2.0 and 5.0 at% La. Using the modified Curie-Weiss law a critical exponent γ and C' were calculated. The obtained values of γ pointed out the diffuse phase transformation in heavily doped BaTiO3 and great departure from the Curie-Weiss law for low doped ceramics.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Microstructure evolution and phase transition in La/Mn doped barium titanate ceramics",
pages = "258-253",
number = "4",
volume = "4",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_2350"
}

Paunović, V., Mitić, V., Pavlović, V., Miljković, M.,& Živković, L.. (2010). Microstructure evolution and phase transition in La/Mn doped barium titanate ceramics. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 4(4), 253-258.
https://hdl.handle.net/21.15107/rcub_agrospace_2350

Paunović V, Mitić V, Pavlović V, Miljković M, Živković L. Microstructure evolution and phase transition in La/Mn doped barium titanate ceramics. in Processing and Application of Ceramics. 2010;4(4):253-258.
https://hdl.handle.net/21.15107/rcub_agrospace_2350 .

Paunović, Vesna, Mitić, Vojislav, Pavlović, Vladimir, Miljković, Miroslav, Živković, Ljiljana, "Microstructure evolution and phase transition in La/Mn doped barium titanate ceramics" in Processing and Application of Ceramics, 4, no. 4 (2010):253-258,
https://hdl.handle.net/21.15107/rcub_agrospace_2350 .

TY  - JOUR
AU  - Mitić, Vojislav V.
AU  - Nikolić, Zoran S.
AU  - Pavlović, Vladimir
AU  - Paunović, Vesna
AU  - Miljković, Miroslav
AU  - Jordović, Branka
AU  - Zivković, Ljiljana
PY  - 2010
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2372
AB  - In this article, ytterbium and erbium oxides are used as doping materials for barium titanate (BaTiO(3)) materials. The amphoteric behavior of these rare-earth ions leads to the increase of dielectric permittivity and decrease of dielectric losses. BaTiO(3) ceramics doped with 0.01-0.5 wt% of Yb(2)O(3) and Er(2)O(3) were prepared by conventional solid-state procedure and sintered at 1320 degrees C for 4 h. In BaTiO(3) doped with a low content of rare-earth ions (0.01 wt%) the grain size ranged between 10 and 25 pm. With the higher dopant concentration of 0.5 wt%, the abnormal grain growth is inhibited and the grain size ranged between 2 and 10 mu m. The measurements of capacitance and dielectric losses as a function of frequency and temperature have been carried out in order to correlate the microstructure and dielectric properties of doped BaTiO(3) ceramics. The temperature dependence of the dielectric constant as a function of dopant amount has been investigated.
PB  - Wiley-Blackwell Publishing, Inc, Malden
T2  - Journal of the American Ceramic Society
T1  - Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties
EP  - 137
IS  - 1
SP  - 132
VL  - 93
DO  - 10.1111/j.1551-2916.2009.03309.x
ER  - 

@article{
author = "Mitić, Vojislav V. and Nikolić, Zoran S. and Pavlović, Vladimir and Paunović, Vesna and Miljković, Miroslav and Jordović, Branka and Zivković, Ljiljana",
year = "2010",
abstract = "In this article, ytterbium and erbium oxides are used as doping materials for barium titanate (BaTiO(3)) materials. The amphoteric behavior of these rare-earth ions leads to the increase of dielectric permittivity and decrease of dielectric losses. BaTiO(3) ceramics doped with 0.01-0.5 wt% of Yb(2)O(3) and Er(2)O(3) were prepared by conventional solid-state procedure and sintered at 1320 degrees C for 4 h. In BaTiO(3) doped with a low content of rare-earth ions (0.01 wt%) the grain size ranged between 10 and 25 pm. With the higher dopant concentration of 0.5 wt%, the abnormal grain growth is inhibited and the grain size ranged between 2 and 10 mu m. The measurements of capacitance and dielectric losses as a function of frequency and temperature have been carried out in order to correlate the microstructure and dielectric properties of doped BaTiO(3) ceramics. The temperature dependence of the dielectric constant as a function of dopant amount has been investigated.",
publisher = "Wiley-Blackwell Publishing, Inc, Malden",
journal = "Journal of the American Ceramic Society",
title = "Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties",
pages = "137-132",
number = "1",
volume = "93",
doi = "10.1111/j.1551-2916.2009.03309.x"
}

Mitić, V. V., Nikolić, Z. S., Pavlović, V., Paunović, V., Miljković, M., Jordović, B.,& Zivković, L.. (2010). Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties. in Journal of the American Ceramic Society
Wiley-Blackwell Publishing, Inc, Malden., 93(1), 132-137.
https://doi.org/10.1111/j.1551-2916.2009.03309.x

Mitić VV, Nikolić ZS, Pavlović V, Paunović V, Miljković M, Jordović B, Zivković L. Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties. in Journal of the American Ceramic Society. 2010;93(1):132-137.
doi:10.1111/j.1551-2916.2009.03309.x .

Mitić, Vojislav V., Nikolić, Zoran S., Pavlović, Vladimir, Paunović, Vesna, Miljković, Miroslav, Jordović, Branka, Zivković, Ljiljana, "Influence of Rare-Earth Dopants on Barium Titanate Ceramics Microstructure and Corresponding Electrical Properties" in Journal of the American Ceramic Society, 93, no. 1 (2010):132-137,
https://doi.org/10.1111/j.1551-2916.2009.03309.x . .