Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 35, Pages 18146-18153Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta03614c
Keywords
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Funding
- Ministry of Sciences and Technology of China through National Basic Research Program of China (973 Program) [2015CB654604]
- National Natural Science Foundation of China for Creative Research Groups [51221291]
- National Natural Science Foundation of China [51272123]
- Tsinghua Fudaoyuan Research Foundation
- CBMI Construction Co., Ltd.
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Novel perovskite-type (1 - x) BaTiO3-xBiYbO(3) solid solutions with x - 0.00-0.20 were synthesized using conventional solid-state reaction methods. A systematic structural change from ferroelectric tetragonal to pseudo-cubic phase was observed at about x - 0.050-0.051 at room temperature. Dielectric measurements revealed a gradual change from normal ferroelectric behavior to highly diffusive and dispersive relaxor-like characteristics, wherein the phase transition temperature shifted to a higher temperature with increasing frequency. With an increase in the BiYbO3 content, the nonlinearity of the (1 - x) BaTiO3-xBiYbO(3) ceramic was weakened obviously. The bulk ceramics were characterized by high polarization maxima and low remnant polarization, which exhibit slim P-E hysteresis loops. The results demonstrate that the (1 - x) BaTiO3-xBiYbO(3) ceramics are promising lead-free relaxor materials for energy storage applications.
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