Intergranular fractal impedance analysis of microstructure and electrical properties of rare-earth doped BaTiO3
Abstract
Microstructure properties of barium-titanate based materials, expressed in grain boundary contacts, are of basic importance for electric properties of these material. In this study, the model of intergranular impedance applied on two-grain contact is considered. Globally, BaTiO3-ceramics sample is consisted of a huge number of mutually contacted grains which form clusters. Such clusters can be presented as a specific fractal formations. For each of them, it is possible to establish the equivalent electrical model and, for defined set of input parameters, using symbolic analysis, obtain the frequency diagram. The influence of fractal structure is especially stressed. Realizing the totality of relations between clusters grains groups, their microelectrical schemes and corresponding frequency characteristics, from one side, and global equivalent electrical scheme and corresponding acquired frequency characteristics of BaTiO3-ceramics samples, on the other side, we set a goal of coinciding... experimental results with the summing effect of microelectric equivalent schemes. The model is successfully tested on doped barium- titanate ceramics.
Keywords:
barium titanate / electrical properties / rare earths / microstructureSource:
Advances in Electronic Ceramics II, 2010, 30, 79-91Publisher:
- Hoboken, NJ : John Wiley & Sons
Funding / projects:
- Investigation of the relation in triad: Synthesis structure-properties for functional materials (RS-142011)
Note:
- Ceramic Engineering and Science Proceedings, Volume 30, Issue 9
- 33rd International Conference on Advanced Ceramics and Composites; Daytona Beach, FL; United States; 18 January 2009 - 23 January 2009
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Mitić, Vojislav V. AU - Pavlović, Vladimir B. AU - Kocić, Ljubiša AU - Paunović, Vesna AU - Mančic, D. PY - 2010 UR - https://dais.sanu.ac.rs/123456789/3421 AB - Microstructure properties of barium-titanate based materials, expressed in grain boundary contacts, are of basic importance for electric properties of these material. In this study, the model of intergranular impedance applied on two-grain contact is considered. Globally, BaTiO3-ceramics sample is consisted of a huge number of mutually contacted grains which form clusters. Such clusters can be presented as a specific fractal formations. For each of them, it is possible to establish the equivalent electrical model and, for defined set of input parameters, using symbolic analysis, obtain the frequency diagram. The influence of fractal structure is especially stressed. Realizing the totality of relations between clusters grains groups, their microelectrical schemes and corresponding frequency characteristics, from one side, and global equivalent electrical scheme and corresponding acquired frequency characteristics of BaTiO3-ceramics samples, on the other side, we set a goal of coinciding experimental results with the summing effect of microelectric equivalent schemes. The model is successfully tested on doped barium- titanate ceramics. PB - Hoboken, NJ : John Wiley & Sons C3 - Advances in Electronic Ceramics II T1 - Intergranular fractal impedance analysis of microstructure and electrical properties of rare-earth doped BaTiO3 SP - 79 EP - 91 VL - 30 DO - 10.1002/9780470584422.ch7 UR - https://hdl.handle.net/21.15107/rcub_dais_3421 ER -
@conference{ author = "Mitić, Vojislav V. and Pavlović, Vladimir B. and Kocić, Ljubiša and Paunović, Vesna and Mančic, D.", year = "2010", abstract = "Microstructure properties of barium-titanate based materials, expressed in grain boundary contacts, are of basic importance for electric properties of these material. In this study, the model of intergranular impedance applied on two-grain contact is considered. Globally, BaTiO3-ceramics sample is consisted of a huge number of mutually contacted grains which form clusters. Such clusters can be presented as a specific fractal formations. For each of them, it is possible to establish the equivalent electrical model and, for defined set of input parameters, using symbolic analysis, obtain the frequency diagram. The influence of fractal structure is especially stressed. Realizing the totality of relations between clusters grains groups, their microelectrical schemes and corresponding frequency characteristics, from one side, and global equivalent electrical scheme and corresponding acquired frequency characteristics of BaTiO3-ceramics samples, on the other side, we set a goal of coinciding experimental results with the summing effect of microelectric equivalent schemes. The model is successfully tested on doped barium- titanate ceramics.", publisher = "Hoboken, NJ : John Wiley & Sons", journal = "Advances in Electronic Ceramics II", title = "Intergranular fractal impedance analysis of microstructure and electrical properties of rare-earth doped BaTiO3", pages = "79-91", volume = "30", doi = "10.1002/9780470584422.ch7", url = "https://hdl.handle.net/21.15107/rcub_dais_3421" }
Mitić, V. V., Pavlović, V. B., Kocić, L., Paunović, V.,& Mančic, D.. (2010). Intergranular fractal impedance analysis of microstructure and electrical properties of rare-earth doped BaTiO3. in Advances in Electronic Ceramics II Hoboken, NJ : John Wiley & Sons., 30, 79-91. https://doi.org/10.1002/9780470584422.ch7 https://hdl.handle.net/21.15107/rcub_dais_3421
Mitić VV, Pavlović VB, Kocić L, Paunović V, Mančic D. Intergranular fractal impedance analysis of microstructure and electrical properties of rare-earth doped BaTiO3. in Advances in Electronic Ceramics II. 2010;30:79-91. doi:10.1002/9780470584422.ch7 https://hdl.handle.net/21.15107/rcub_dais_3421 .
Mitić, Vojislav V., Pavlović, Vladimir B., Kocić, Ljubiša, Paunović, Vesna, Mančic, D., "Intergranular fractal impedance analysis of microstructure and electrical properties of rare-earth doped BaTiO3" in Advances in Electronic Ceramics II, 30 (2010):79-91, https://doi.org/10.1002/9780470584422.ch7 ., https://hdl.handle.net/21.15107/rcub_dais_3421 .