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Published in: Journal of Materials Science: Materials in Electronics 10/2021

04-05-2021

Enhanced energy storage properties at phase boundary in Fe‐doped Ba(Zr0.04Ti0.96)O3 ceramics with a slush polar state

Authors: Yu Fang, Yucong Zhang, Chen Wu, Changyi Liu, Wenwei Ge, Hongwei Zhao, Hongming Yuan

Published in: Journal of Materials Science: Materials in Electronics | Issue 10/2021

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Abstract

The relationship between phase boundary and energy storage properties in x mol% Fe-doped Ba(Zr0.04Ti0.96)O3 (BZT4-xFe) ceramics was studied. The BZT4-xFe (x = 0 ~ 2) ceramics were fabricated via a conventional solid-state reaction method. The average grain size (ξ) is reduced from ~ 1.63 to ~ 1.23 μm with increasing Fe-doping content. X-ray diffraction (XRD) reveals that orthorhombic (O) and tetragonal (T) phases coexist at x = 0 ~ 0.8 and a mixing of O and cubic (C) phases was observed at x = 1 ~ 2. A slush polar state with the coexistence of O and T phases appeared near the O-T transition temperature (TO−T) in BZT4-xFe (x = 0 ~ 0.8) ceramics. A critical behavior can be observed in the BZT4-xFe ceramics. The O-T phase boundary with the slush polar state can increase the energy storage density Wrec in BZT4-xFe ceramics. The energy storage properties of BZT4-0.4Fe ceramics exhibit a good temperature, frequency, and fatigue stability.

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Metadata
Title
Enhanced energy storage properties at phase boundary in Fe‐doped Ba(Zr0.04Ti0.96)O3 ceramics with a slush polar state
Authors
Yu Fang
Yucong Zhang
Chen Wu
Changyi Liu
Wenwei Ge
Hongwei Zhao
Hongming Yuan
Publication date
04-05-2021
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 10/2021
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-021-05973-9

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