期刊
CERAMICS INTERNATIONAL
卷 43, 期 12, 页码 9099-9104出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2017.04.056
关键词
BaZr0.13Ti1.46O3; Precipitation method; Fine-grained ceramics; Dielectric propertiess
资金
- Scientific Research Projects of Natural Science Foundation of Shaanxi Provincial Department of Education [16JK1040]
- Baoji Science and Technology Plan project [16RKX1-4]
- Science and Technology Foundation of Baoji University of Arts and Science [ZK16054]
- Open Foundation of Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
Y3+ and Fe3+ co-doped BaZr0.13Ti1.46O3 powders were synthesized by wet chemical method through a precipitation process, able to control uniformity and particle size of the BaZr0.13Ti1.46O3-based particles. Fine-grained BaZr0.13Ti1.46O3 ceramics co-doped with various amounts of Y3+ and Fe3+ were prepared at low sintering temperature to yield good dielectric properties and gentle temperature stability. The co-doping effect on the microstructure and dielectric properties of BaZr0.13Ti1.46O3 ceramics were studied. Results showed the dielectric constants firstly to increase monotonically then decrease with the increase of Y3+ and Fe3+ concentration. Overall, the resulting ceramics met the X8R specification when Y3+ and Fe3+ contents were 2 or 4 mol%. Moreover, the increase in Y3+ and Fe3+ doping concentration from 6 to 8 mol% satisfied the X7R specification.
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