Study of the role of porosity on the functional properties of (Ba,Sr)TiO 3 ceramics
作者： Roxana Stanculescu , Cristina E. Ciomaga , Leontin Padurariu , Pietro Galizia , Nadejda Horchidan
DOI: 10.1016/J.JALLCOM.2015.03.252
关键词: Curie temperature 、 Microstructure 、 Graphite 、 Mineralogy 、 Permittivity 、 Materials science 、 Porosity 、 Dielectric 、 Composite material 、 Lamellar structure 、 Ceramic
摘要: Abstract The role of porosity on the low and high field dielectric properties was studied in Ba 0.70 Sr 0.30 TiO 3 ceramics with various levels obtained by using lamellar graphite as sacrificial template. permittivity decreases increasing porosity, from around e ∼ 7690 (dense ceramic) down to 380 (ceramic 29% porosity), while preserving Curie temperature at about 35 °C. effective discussed Effective Medium Approximation Finite Element Method approaches. specific microstructural characteristics induced pore forming addition, closed (0–3) towards a combined (0–3, 2–2) lamellar-type microstructures for most porous taken into consideration. All investigated preserve level tunability dense material, irrespective level, zero decreased few hundreds.
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sci-hub.se 参考文章(48)
Elisa Mercadelli, Alessandra Sanson, Carmen Galassi, Porous Piezoelectric Ceramics InTech. ,(2010) , 10.5772/9942
A Peláiz-Barranco, J D S Guerra, R López-Noda, E B Araújo, Ionized oxygen vacancy-related electrical conductivity in (Pb(1-x)La(x)) (Zr(0.90)Ti(0.10))(1-x/4)O(3) ceramics Journal of Physics D. ,vol. 41, pp. 215503- ,(2008) , 10.1088/0022-3727/41/21/215503
L. X. Zhang, W. Chen, X. Ren, Large recoverable electrostrain in Mn-doped (Ba,Sr) TiO3 ceramics Applied Physics Letters. ,vol. 85, pp. 5658- 5660 ,(2004) , 10.1063/1.1829394
Chaoliang Mao, Shiguang Yan, Sheng Cao, Chunhua Yao, Fei Cao, Genshui Wang, Xianlin Dong, Xu Hu, Chunli Yang, Effect of grain size on phase transition, dielectric and pyroelectric properties of BST ceramics Journal of The European Ceramic Society. ,vol. 34, pp. 2933- 2939 ,(2014) , 10.1016/J.JEURCERAMSOC.2014.04.005
Anne Julbe, David Farrusseng, Christian Guizard, Porous ceramic membranes for catalytic reactors — overview and new ideas Journal of Membrane Science. ,vol. 181, pp. 3- 20 ,(2001) , 10.1016/S0376-7388(00)00375-6
Cheng Liu, Peng Liu, Guo-guang Yao, Xiao-bing Bian, Hui-xia Jing, Xiao-gang Lu, Chang-jie Gao, Improvement of dielectric thermal stability of BST ferroelectric material for tunable applications Materials Research Bulletin. ,vol. 46, pp. 1510- 1514 ,(2011) , 10.1016/J.MATERRESBULL.2011.04.029
Cristina Elena Ciomaga, Cristina Stefania Olariu, Leontin Padurariu, Andrei Victor Sandu, Carmen Galassi, Liliana Mitoseriu, Low field permittivity of ferroelectric-ferrite ceramic composites: Experiment and modeling Journal of Applied Physics. ,vol. 112, pp. 094103- ,(2012) , 10.1063/1.4764037
Jichun Chen, La Doping Effect on the Dielectric Property of Barium Strontium Titanate Glass–Ceramics Journal of Materials Science & Technology. ,vol. 30, pp. 295- 298 ,(2014) , 10.1016/J.JMST.2013.07.007
F. Levassort, J. Holc, E. Ringgaard, T. Bove, M. Kosec, M. Lethiecq, Fabrication, modelling and use of porous ceramics for ultrasonic transducer applications Journal of Electroceramics. ,vol. 19, pp. 127- 139 ,(2007) , 10.1007/S10832-007-9117-3
Jianyong Li, Hirofumi Kakemoto, Satoshi Wada, Takaaki Tsurumi, Hitoshi Kawaji, Dielectric relaxation in gigahertz region and phase transition of BaTiO3-based ceramics Journal of Applied Physics. ,vol. 100, pp. 024106- ,(2006) , 10.1063/1.2216884