Large activation energy in aged Mn-doped Sr0.4Ba0.6Nb2O6 ferroelectric ceramics

Zhao, Yingying; Wang, Jiping; Zhang, Lixue; Liu, Shujuan; Zhang, Dawei; Wang, Xuan

doi:10.1039/c7ra03080k

Cited by 6 publications

(1 citation statement)

References 58 publications

(77 reference statements)

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“…Sr ions occupy both the A1 site and the larger A2 site, whereas the larger Ba ions occupy the A2 site only. The smaller C site remains empty [10,11]. Moreover, SBN ceramics transition from normal ferroelectrics to relaxor ferroelectrics when the Sr/Ba increases [10].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Energy Storage Properties of La-Doped Sr0.6Ba0.4Nb2O6 Relaxor Ferroelectric Ceramics Prepared by Spark Plasma Sintering

et al. 2022

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In this work, La-doped Sr0.6Ba0.4Nb2O6 ferroelectric ceramics were fabricated by the conventional solid state reaction method (CS) and spark plasma sintering (SPS), respectively. The microstructure, phase structure, dielectric properties, relaxor behavior, ferroelectric and energy storage properties were investigated and compared to indicate the effects of spark plasma sintering on their performances. The results show that the grain shape changes from columnar to isometric crystal and the grain size decreases obviously after spark plasma sintering. The dielectric constant of the CS sample and the SPS sample both show a typical relaxor behavior with obvious frequency dispersion. The diffusion parameters (γ) of both CS sample and SPS sample are close to 2 and all the samples present slim polarization–electric (P-E) loops, which verify the relaxor behavior. Moreover, the breakdown strength, Eb, and discharge energy storage density, Wrec, of La-doped Sr0.6Ba0.4Nb2O6 ferroelectric ceramics prepared by SPS are improved significantly. This work provides guidance for improving the energy storage performance of ferroelectric ceramics with tungsten bronze structures by decreasing the grain size through adopting a different sintering method.

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Section: Introductionmentioning

confidence: 99%

Enhanced Energy Storage Properties of La-Doped Sr0.6Ba0.4Nb2O6 Relaxor Ferroelectric Ceramics Prepared by Spark Plasma Sintering

et al. 2022

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Crystal structure, relaxor behaviors and energy storage performance of (Sr0.7Ba0.3)5LaNb7Ti3O30 tungsten bronze ceramics

Cao

Yuan

Yang

et al. 2020

Ceramics International

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Enhanced energy storage properties promoted by the synergistic effects of aging effects and relaxor behavior in Ce–Mn co-doped Sr0.4Ba0.6Nb2O6 ferroelectric ceramics

Zhao,

Li,

et al. 2024

Ceramics International

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Large activation energy in aged Mn-doped Sr_0.4Ba_0.6Nb₂O₆ ferroelectric ceramics

Abstract: Large activation energy and a different migration path of oxygen vacancy diffusion in Mn-doped SBN ferroelectric ceramics are revealed.

Cited by 6 publications

References 58 publications

Enhanced Energy Storage Properties of La-Doped Sr0.6Ba0.4Nb2O6 Relaxor Ferroelectric Ceramics Prepared by Spark Plasma Sintering

Enhanced Energy Storage Properties of La-Doped Sr0.6Ba0.4Nb2O6 Relaxor Ferroelectric Ceramics Prepared by Spark Plasma Sintering

Crystal structure, relaxor behaviors and energy storage performance of (Sr0.7Ba0.3)5LaNb7Ti3O30 tungsten bronze ceramics

Enhanced energy storage properties promoted by the synergistic effects of aging effects and relaxor behavior in Ce–Mn co-doped Sr0.4Ba0.6Nb2O6 ferroelectric ceramics

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