Sintering temperature dependence of dielectric properties and energy-storage properties in (Ba,Zr)TiO3 ceramics
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BaZr0.1Ti0.9O3 ceramics are prepared via the conventional solid state reaction method. The Zr4+ ions have diffused into the BaTiO3 lattices to form a homogenous solid solution. We investigate the dielectric properties and energy storage density of BaZr0.1Ti0.9O3 ceramics at different sintering temperature. The temperature dependence of dielectric constant of BaZr0.1Ti0.9O3 ceramics illustrates the obvious relaxor phase transition characteristics. The polarization hysteresis loops P–E of ceramics sintered at 1260–1300 °C show slimmer comparable to that of ceramics sintered at 1240 °C, resulting in high energy storage density. Excellent dielectric properties and energy storage density are achieved in the BaZr0.1Ti0.9O3 ceramics sintered at 1260 °C for 2 h: εr = 2998, tanδ = 0.007 and J = 0.5 J cm−3.
KeywordsBaTiO3 Sinter Temperature Barium Titanate Breakdown Strength Conventional Solid State Reaction Method
This work is supported by Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure (Project No. SKL201309SIC), as well as Science and Technology Projects of Guangdong Province (Project No. 2011A091103002). This work is partly supported by National Natural Science Foundation of China (51502132).