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- Title
Effect of Ba doping on microstructure and electric properties of calcium copper titanate (CaCuTiO) ceramics.
- Authors
Wu, Shuang; Liu, Pei; Lai, Yuanming; Guan, Weiming; Huang, Zihan; Han, Jiao; Xiang, Yao; Yi, Wei; Zeng, Yiming
- Abstract
The Ba doped ceramics of CaBaCuTiO (x = 0.005, 0.01, 0.03, 0.05 and 0.1) were sintered via conventional solid-state reaction at 1050 °C for 8 h in air. The microstructure and electric properties of Ba doping ceramics were investigated. The lattice parameters of CaBaCuTiO (CBCTO) ceramics decreased with the Ba doping, and BaTiO as secondary phase was confirmed at x = 0.1. The doping of Ba resulted in uniformly distribution of small size grain (~4 μm). All the doped samples showed lower value of dielectric constant than CaCuTiO (CCTO), due to low resistivity of the grain boundary with the Ba doped samples. The nonlinear coefficient and breakdown field were significantly enhanced by Ba doping.
- Subjects
BARIUM; TITANATES; CERAMICS; MICROSTRUCTURE; ELECTRIC properties; DIELECTRIC properties
- Publication
Journal of Materials Science: Materials in Electronics, 2016, Vol 27, Issue 10, p10336
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-016-5118-9