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Sintering Process Influence on Microstructure and Intergranular Impedance of Rare-Earth Modified BaTiO3-Ceramics

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2011
2607.pdf (862.6Kb)
Authors
Mitić, V.V.
Paunović, V.
Pavlović, Vladimir
Zivković, Lj
Article (Published version)
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Abstract
Sintering process is a complex of different synergetic effects during the ceramics materials consolidation. The microstructural level properties control is very important as a stage in advanced materials prognosis. SEM analysis of Yb/BaTiO3 doped ceramics showed that in samples doped with, a low level of dopant and sintered at higher temperatures the grain size ranged from 10-60 mu m, while with the higher dopant concentration the grain, size ranged between 2-15 mu m. The morphology of sintered BaTiO3-ceramics grains points out the validity of developing new structure analytical methods based on different geometries of grains' model systems. The idea of electrical properties of BaTiO3-ceramics being influenced by intergrain microcontacts can be successfully followed if we start with the two-sphere Coble's model and also the correction of the Coble's model. In this paper, the grains contact models based on spherical, ellipsoidal and polyhedral geometries are presented making a new model...ing tool for structure research of BaTiO3-ceramics materials. Intergranular impedance analysis of grains clusters was also introduced. Obtained results enabled establishment of interrelation between. structural and electrical parameters.

Keywords:
BaTiO3 / microstructure / Sintering / Intergranular impedance / Coble's model
Source:
Science of Sintering, 2011, 43, 3, 277-287
Publisher:
  • Međunarodni Institut za nauku o sinterovanju, Beograd
Funding / projects:
  • Serbian Academy of Sciences and Arts [172057, F-7, F/198]

DOI: 10.2298/SOS1103277M

ISSN: 0350-820X

WoS: 000305094400004

Scopus: 2-s2.0-84857180917
[ Google Scholar ]
8
7
URI
http://aspace.agrif.bg.ac.rs/handle/123456789/2610
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Poljoprivredni fakultet
TY  - JOUR
AU  - Mitić, V.V.
AU  - Paunović, V.
AU  - Pavlović, Vladimir
AU  - Zivković, Lj
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2610
AB  - Sintering process is a complex of different synergetic effects during the ceramics materials consolidation. The microstructural level properties control is very important as a stage in advanced materials prognosis. SEM analysis of Yb/BaTiO3 doped ceramics showed that in samples doped with, a low level of dopant and sintered at higher temperatures the grain size ranged from 10-60 mu m, while with the higher dopant concentration the grain, size ranged between 2-15 mu m. The morphology of sintered BaTiO3-ceramics grains points out the validity of developing new structure analytical methods based on different geometries of grains' model systems. The idea of electrical properties of BaTiO3-ceramics being influenced by intergrain microcontacts can be successfully followed if we start with the two-sphere Coble's model and also the correction of the Coble's model. In this paper, the grains contact models based on spherical, ellipsoidal and polyhedral geometries are presented making a new modeling tool for structure research of BaTiO3-ceramics materials. Intergranular impedance analysis of grains clusters was also introduced. Obtained results enabled establishment of interrelation between. structural and electrical parameters.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Sintering Process Influence on Microstructure and Intergranular Impedance of Rare-Earth Modified BaTiO3-Ceramics
EP  - 287
IS  - 3
SP  - 277
VL  - 43
DO  - 10.2298/SOS1103277M
ER  - 
@article{
author = "Mitić, V.V. and Paunović, V. and Pavlović, Vladimir and Zivković, Lj",
year = "2011",
abstract = "Sintering process is a complex of different synergetic effects during the ceramics materials consolidation. The microstructural level properties control is very important as a stage in advanced materials prognosis. SEM analysis of Yb/BaTiO3 doped ceramics showed that in samples doped with, a low level of dopant and sintered at higher temperatures the grain size ranged from 10-60 mu m, while with the higher dopant concentration the grain, size ranged between 2-15 mu m. The morphology of sintered BaTiO3-ceramics grains points out the validity of developing new structure analytical methods based on different geometries of grains' model systems. The idea of electrical properties of BaTiO3-ceramics being influenced by intergrain microcontacts can be successfully followed if we start with the two-sphere Coble's model and also the correction of the Coble's model. In this paper, the grains contact models based on spherical, ellipsoidal and polyhedral geometries are presented making a new modeling tool for structure research of BaTiO3-ceramics materials. Intergranular impedance analysis of grains clusters was also introduced. Obtained results enabled establishment of interrelation between. structural and electrical parameters.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Sintering Process Influence on Microstructure and Intergranular Impedance of Rare-Earth Modified BaTiO3-Ceramics",
pages = "287-277",
number = "3",
volume = "43",
doi = "10.2298/SOS1103277M"
}
Mitić, V.V., Paunović, V., Pavlović, V.,& Zivković, L.. (2011). Sintering Process Influence on Microstructure and Intergranular Impedance of Rare-Earth Modified BaTiO3-Ceramics. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 43(3), 277-287.
https://doi.org/10.2298/SOS1103277M
Mitić V, Paunović V, Pavlović V, Zivković L. Sintering Process Influence on Microstructure and Intergranular Impedance of Rare-Earth Modified BaTiO3-Ceramics. in Science of Sintering. 2011;43(3):277-287.
doi:10.2298/SOS1103277M .
Mitić, V.V., Paunović, V., Pavlović, Vladimir, Zivković, Lj, "Sintering Process Influence on Microstructure and Intergranular Impedance of Rare-Earth Modified BaTiO3-Ceramics" in Science of Sintering, 43, no. 3 (2011):277-287,
https://doi.org/10.2298/SOS1103277M . .

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