Crystal structures and domain patterns of unpoled and poled Bi0.5(Na0.78K0.22)0.5TiO3 ceramics by TEM

Park, Jung Soo; Jeon, Chang-Jun; Jeong, Young‐Hun; Yun, JiSun; Cho, Jeong‐Ho

doi:10.1016/j.matlet.2016.01.011

Cited by 7 publications

(1 citation statement)

References 19 publications

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“…One of their most important properties is the displacement induced by an electric field. Recently, the giant electric‐field‐induced strain of (Bi,Na)TiO 3 [BNT] based lead‐free ceramics has shed light on the potential to develop large‐stroke actuator applications, without the environmental issues of lead based materials . In particular, (Bi,Na)TiO 3 – x SrTiO 3 [BNT– x ST] ceramics have exhibited a strain response of 0.30% at a relatively low electric field, surpassing commercial Pb(Zr,Ti)O 3 .…”

Section: Introductionmentioning

confidence: 99%

Effect of chemical inhomogeneity on domains and ferroelectric properties of Fe‐modified 0.77Bi_0.5Na_0.5TiO₃–0.23SrTiO₃

et al. 2018

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Lead‐free 0.77(Bi0.5Na0.5)TiO3–0.23Sr(Ti1−xFex)O3 (x = 0, 0.04) (BNT–23STFx) was prepared using a conventional solid‐state reaction route. The effects of Fe‐modification on the chemical homogeneity from a μm scale perspective, the core‐shell domains structures, and the ferroelectric properties were investigated. The chemical homogeneity was analyzed using energy dispersive X‐ray mapping in scanning transmission electron microscopy mode, and the field‐dependent behaviors of strain and polarization were obtained to determine the ferroelectric properties. Substituting Fe3+ for Ti4+ resulted in completely different electrical behavior and properties, despite similar XRD patterns and microstructures. The Fe‐substitution promoted the mobility of Sr2+ ions in the BNT phase and, as a consequence, the chemical homogeneity increased and the core‐domains collapsed. Extending the ceramic processing, such as milling time and sintering time, affected domain distribution and compositional inhomogeneity, which led to a gradual transformation from ferroelectric to relaxor.

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Section: Introductionmentioning

confidence: 99%

Effect of chemical inhomogeneity on domains and ferroelectric properties of Fe‐modified 0.77Bi_0.5Na_0.5TiO₃–0.23SrTiO₃

et al. 2018

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Formation of lamellar domains in liquid crystal elastomers under compression

Zhao

Chen

Huo

2023

International Journal of Mechanical Sciences

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Superior energy storage performance of Sr0.7Bi0.2TiO3-modified Na0.5Bi0.5TiO3-K0.7La0.1NbO3 lead-free ferroelectric ceramics

Liu,

Li,

Wang

et al. 2024

Journal of Alloys and Compounds

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Crystal structures and domain patterns of unpoled and poled Bi0.5(Na0.78K0.22)0.5TiO3 ceramics by TEM

Cited by 7 publications

References 19 publications

Effect of chemical inhomogeneity on domains and ferroelectric properties of Fe‐modified 0.77Bi_0.5Na_0.5TiO₃–0.23SrTiO₃

Effect of chemical inhomogeneity on domains and ferroelectric properties of Fe‐modified 0.77Bi_0.5Na_0.5TiO₃–0.23SrTiO₃

Formation of lamellar domains in liquid crystal elastomers under compression

Superior energy storage performance of Sr0.7Bi0.2TiO3-modified Na0.5Bi0.5TiO3-K0.7La0.1NbO3 lead-free ferroelectric ceramics

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Crystal structures and domain patterns of unpoled and poled Bi0.5(Na0.78K0.22)0.5TiO3 ceramics by TEM

Cited by 7 publications

References 19 publications

Effect of chemical inhomogeneity on domains and ferroelectric properties of Fe‐modified 0.77Bi0.5Na0.5TiO3–0.23SrTiO3

Effect of chemical inhomogeneity on domains and ferroelectric properties of Fe‐modified 0.77Bi0.5Na0.5TiO3–0.23SrTiO3

Formation of lamellar domains in liquid crystal elastomers under compression

Superior energy storage performance of Sr0.7Bi0.2TiO3-modified Na0.5Bi0.5TiO3-K0.7La0.1NbO3 lead-free ferroelectric ceramics

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Effect of chemical inhomogeneity on domains and ferroelectric properties of Fe‐modified 0.77Bi_0.5Na_0.5TiO₃–0.23SrTiO₃

Effect of chemical inhomogeneity on domains and ferroelectric properties of Fe‐modified 0.77Bi_0.5Na_0.5TiO₃–0.23SrTiO₃