Sintering Process Influence on Microstructure and Intergranular Impedance of Rare-Earth Modified BaTiO3-Ceramics
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 modelSource:
Science of Sintering, 2011, 43, 3, 277-287Publisher:
- 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
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Institution/Community
Poljoprivredni fakultetTY - 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 . .