Enhanced energy storage performance of (1-x)(BCT-BMT)-xBFO lead-free relaxor ferroelectric ceramics in a broad temperature range

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dc.contributor.author Xu, Mengxing
dc.contributor.author Peng, Biaolin
dc.contributor.author Zhu, Jinian
dc.contributor.author Liu, Laijun
dc.contributor.author Sun, Wenhong
dc.contributor.author Leighton, Glenn J. T.
dc.contributor.author Shaw, Christopher
dc.contributor.author Luo, Nengneng
dc.contributor.author Zhang, Qi
dc.date.accessioned 2019-04-02T11:58:09Z
dc.date.available 2019-04-02T11:58:09Z
dc.date.issued 2019-03-03
dc.identifier.citation Xu M, Peng B, Zhu J, et al., Enhanced energy storage performance of (1-x)(BCT-BMT)-xBFO lead-free relaxor ferroelectric ceramics in a broad temperature range. Journal of Alloys and Compounds, Volume 789, June 2019, pp. 303-312 en_UK
dc.identifier.issn 0925-8388
dc.identifier.uri https://doi.org/10.1016/j.jallcom.2019.02.314
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/14032
dc.description.abstract Relaxor ferroelectrics with high energy storage performances are very attractive for modern applications in electronic devices and systems. Here, it is demonstrated that large energy densities (0.52e0.58 J/cm3) simultaneously with high efficiencies (76è2%) and thermal stabilities (the minimum variation of efficiency < 4% from 323 K to 423 K at x ¼ 0.04) have been achieved in the (1-x)(BCT-BMT)-xBFO lead-free relaxor ferroelectric ceramics prepared using a conventional solid-state reaction method. Large dielectric breakdown strengths and great relaxor dispersion around the dielectric peaks are responsible for the excellent energy storage performances. The energy storage performances of as-prepared ceramics at high BFO doping amount (x ¼ 0.06 and 0.07) were deteriorated seriously due to low dielectric breakdown strengths. However, they could be greatly improved when aged, since the operable electric field was significantly enhanced from 10 kV/cm of as-prepared samples to 100 kV/cm of aged samples due to the reduced concentration of oxygen vacancies during the aging process. The excellent energy storage performances may make them attractive materials for applications in modern energy storage systems in a broad temperature range. en_UK
dc.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject energy storage en_UK
dc.subject BCT-BMT en_UK
dc.subject Relaxor en_UK
dc.subject Aging en_UK
dc.title Enhanced energy storage performance of (1-x)(BCT-BMT)-xBFO lead-free relaxor ferroelectric ceramics in a broad temperature range en_UK
dc.type Article en_UK


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