Sintering process influence on microstructure and intergranular impedance of rare-earth modified BaTiO3-ceramics
Апстракт
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 10-60μm, while with the higher dopant concentration the grain size ranged between 2-15μm. 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.
Кључне речи:
BaTiO3 / barium titanate / microstructure / sintering / intergranular impedance / Coble’s modelИзвор:
Science of Sintering, 2011, 43, 3, 277-287Издавач:
- Belgrade : International Institute for the Science of Sintering
Финансирање / пројекти:
- Усмерена синтеза, структура и својства мултифункционалних материјала (RS-MESTD-Basic Research (BR or ON)-172057)
DOI: 10.2298/SOS1103343V
ISSN: 1820-7413; 0350-820X
WoS: 000305094400011
Scopus: 2-s2.0-84857180016
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Mitić, Vojislav V. AU - Paunović, Vesna AU - Pavlović, Vera P. AU - Živković, Ljiljana PY - 2011 UR - https://dais.sanu.ac.rs/123456789/198 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 10-60μm, while with the higher dopant concentration the grain size ranged between 2-15μm. 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 - Belgrade : International Institute for the Science of Sintering T2 - Science of Sintering T1 - Sintering process influence on microstructure and intergranular impedance of rare-earth modified BaTiO3-ceramics SP - 277 EP - 287 VL - 43 IS - 3 DO - 10.2298/SOS1103343V UR - https://hdl.handle.net/21.15107/rcub_dais_198 ER -
@article{ author = "Mitić, Vojislav V. and Paunović, Vesna and Pavlović, Vera P. and Živković, Ljiljana", 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 10-60μm, while with the higher dopant concentration the grain size ranged between 2-15μm. 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 = "Belgrade : International Institute for the Science of Sintering", journal = "Science of Sintering", title = "Sintering process influence on microstructure and intergranular impedance of rare-earth modified BaTiO3-ceramics", pages = "277-287", volume = "43", number = "3", doi = "10.2298/SOS1103343V", url = "https://hdl.handle.net/21.15107/rcub_dais_198" }
Mitić, V. V., Paunović, V., Pavlović, V. P.,& Živković, L.. (2011). Sintering process influence on microstructure and intergranular impedance of rare-earth modified BaTiO3-ceramics. in Science of Sintering Belgrade : International Institute for the Science of Sintering., 43(3), 277-287. https://doi.org/10.2298/SOS1103343V https://hdl.handle.net/21.15107/rcub_dais_198
Mitić VV, Paunović V, Pavlović VP, Živković 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/SOS1103343V https://hdl.handle.net/21.15107/rcub_dais_198 .
Mitić, Vojislav V., Paunović, Vesna, Pavlović, Vera P., Živković, Ljiljana, "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/SOS1103343V ., https://hdl.handle.net/21.15107/rcub_dais_198 .