Processing parameter influence on BaTiO3 ceramic fractal microstructure and dielectric characteristics
Abstract
In the process of BaTiO3 ceramics consolidation, technological parameters like sintering temperature, pressing pressure and additives significantly determine the microstructure and electrical properties. Slight change of a particular sintering parameter can considerably change the microstructure as well as the electrical parameters. Structural complex grain–contact–grain is observed on Ho doped BaTiO3 ceramics, sintered from 1320 to 1380°C. The new configuration model of ceramic grain contact surfaces is presented in this paper. This model is based on Coble’s two-sphere approximation and its generalisation to ellipsoidal geometry. The integral contact surface directly influences the value of the total ceramic capacity. Fractal method is applied for intergrain contact analysis. Ceramic grains are considered to have fractal surface (as it is elsewhere in nature) and, therefore, fractal structure influences on the dielectric properties of BaTiO3 ceramics. The obtained results give better ...understanding of ceramic microstructure with the final aim to establish significant interrelation among processing, structural and electrical parameters.
Keywords:
BaTiO3 ceramics / processing parameters / Coble’s model / fractals / intergrain contactSource:
Advances in Applied Ceramics, 2012, 111, 5-6, 360-366Publisher:
- Maney
Projects:
DOI: 10.1179/1743676112Y.0000000026
ISSN: 1743-6753 (Print); 1743-6761 (Online)
WoS: 000306691700015
Scopus: 2-s2.0-84864239707
TY - JOUR AU - Mitić, Vojislav V. AU - Paunović, Vesna AU - Purenović, Jelena AU - Kocić, Ljubiša AU - Pavlović, Vladimir B. PY - 2012 UR - http://dais.sanu.ac.rs/123456789/481 AB - In the process of BaTiO3 ceramics consolidation, technological parameters like sintering temperature, pressing pressure and additives significantly determine the microstructure and electrical properties. Slight change of a particular sintering parameter can considerably change the microstructure as well as the electrical parameters. Structural complex grain–contact–grain is observed on Ho doped BaTiO3 ceramics, sintered from 1320 to 1380°C. The new configuration model of ceramic grain contact surfaces is presented in this paper. This model is based on Coble’s two-sphere approximation and its generalisation to ellipsoidal geometry. The integral contact surface directly influences the value of the total ceramic capacity. Fractal method is applied for intergrain contact analysis. Ceramic grains are considered to have fractal surface (as it is elsewhere in nature) and, therefore, fractal structure influences on the dielectric properties of BaTiO3 ceramics. The obtained results give better understanding of ceramic microstructure with the final aim to establish significant interrelation among processing, structural and electrical parameters. PB - Maney T2 - Advances in Applied Ceramics T1 - Processing parameter influence on BaTiO3 ceramic fractal microstructure and dielectric characteristics SP - 360 EP - 366 VL - 111 IS - 5-6 DO - 10.1179/1743676112Y.0000000026 ER -
@article{ author = "Mitić, Vojislav V. and Paunović, Vesna and Purenović, Jelena and Kocić, Ljubiša and Pavlović, Vladimir B.", year = "2012", url = "http://dais.sanu.ac.rs/123456789/481", abstract = "In the process of BaTiO3 ceramics consolidation, technological parameters like sintering temperature, pressing pressure and additives significantly determine the microstructure and electrical properties. Slight change of a particular sintering parameter can considerably change the microstructure as well as the electrical parameters. Structural complex grain–contact–grain is observed on Ho doped BaTiO3 ceramics, sintered from 1320 to 1380°C. The new configuration model of ceramic grain contact surfaces is presented in this paper. This model is based on Coble’s two-sphere approximation and its generalisation to ellipsoidal geometry. The integral contact surface directly influences the value of the total ceramic capacity. Fractal method is applied for intergrain contact analysis. Ceramic grains are considered to have fractal surface (as it is elsewhere in nature) and, therefore, fractal structure influences on the dielectric properties of BaTiO3 ceramics. The obtained results give better understanding of ceramic microstructure with the final aim to establish significant interrelation among processing, structural and electrical parameters.", publisher = "Maney", journal = "Advances in Applied Ceramics", title = "Processing parameter influence on BaTiO3 ceramic fractal microstructure and dielectric characteristics", pages = "360-366", volume = "111", number = "5-6", doi = "10.1179/1743676112Y.0000000026" }
Mitić VV, Paunović V, Purenović J, Kocić L, Pavlović VB. Processing parameter influence on BaTiO3 ceramic fractal microstructure and dielectric characteristics. Advances in Applied Ceramics. 2012;111(5-6):360-366
Mitić, V. V., Paunović, V., Purenović, J., Kocić, L.,& Pavlović, V. B. (2012). Processing parameter influence on BaTiO3 ceramic fractal microstructure and dielectric characteristics. Advances in Applied CeramicsManey., 111(5-6), 360-366. https://doi.org/10.1179/1743676112Y.0000000026
Mitić Vojislav V., Paunović Vesna, Purenović Jelena, Kocić Ljubiša, Pavlović Vladimir B., "Processing parameter influence on BaTiO3 ceramic fractal microstructure and dielectric characteristics" 111, no. 5-6 (2012):360-366, https://doi.org/10.1179/1743676112Y.0000000026 .