Improved piezoelectricity and high strain response of (1 − x)(0.948K0.5Na0.5NbO3 − 0.052LiSbO3) − xBi2O3 ceramics

Zhao, Yan; Xu, Zhijun; Chu, Ruiqing; Hao, Jigong; Du, Juan; Li, Guorong

doi:10.1007/s10854-016-5647-2

Cited by 5 publications

(1 citation statement)

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“…Appropriate BKN excesses are able to decrease the evaporation of volatile A-site cations, and contribute to an improvement in the density of BKNT-x ceramics [43]. Bi 2 O 3 with its melting point of 825°C usually decreases sintering temperatures by forming a liquid phase [44]. With further increases in BKN(x > 0.004), the content of bismuth oxide goes up, which leads to lower sintering temperatures of BKNT-x piezoceramics.…”

Section: Resultsmentioning

confidence: 99%

Structure and electrical properties of [(Na_0.825K_0.175)_0.5Bi_0.5]_1+xTiO₃piezoceramics with A-site nonstoichiometry

Chen

Liao

2020

Journal of Asian Ceramic Societies

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A type of nonstoichiometric piezoceramics, [(Na 0.825 K 0.175 ) 0.5 Bi 0.5 ] 1+x TiO 3 (BKNT-x, x = 0-0.009), was synthesized by the conventional sintering method. The effects of Bi 3+ , Na + and K + content on the structure and electrical properties of 0.825Bi 0.5 Na 0.5 TiO 3 -0.175Bi 0.5 K 0.5 TiO 3 piezoceramics were investigated.The XRD patterns demonstrated that BKNT-x piezoceramics form a solid solution without a secondary phase. Meanwhile, SEM micrographs indicated that excess [(Na 0.825 K 0.175 ) 0.5 Bi 0.5 ] 2+ suppresses grain growth and that BKNT-x ceramics become considerably denser. BKNT-0.002 ceramics offer the following enhanced properties: d 33 = 154 pC/N, k p = 33%, ε r = 1087, tanδ = 0.036, and Q m = 116. This improvement of properties is most likely related to the dense structure and the maintenance of morphotropic phase boundaries through the introduction of a proper A-site cation excess. For ceramics containing volatile elements, stoichiometric control is an efficacious method of enhancing performance.

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Section: Resultsmentioning

confidence: 99%

Structure and electrical properties of [(Na_0.825K_0.175)_0.5Bi_0.5]_1+xTiO₃piezoceramics with A-site nonstoichiometry

Chen

Liao

2020

Journal of Asian Ceramic Societies

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Lead-free rare earth-modified (K0.44Na0.52Li0.04)(Nb0.86Ta0.1Sb0.04)O3 ceramics: phase structure, electrical and photoluminescence properties

Zhao

Niu

et al. 2017

J Mater Sci: Mater Electron

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Influence of BiFeO3 doping on structural and electrical properties of KNN–LS based lead-free piezoceramics

Zhu

Wang

Zheng³

et al. 2018

J Mater Sci: Mater Electron

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Improved piezoelectricity and high strain response of (1 − x)(0.948K0.5Na0.5NbO3 − 0.052LiSbO3) − xBi2O3 ceramics

Cited by 5 publications

References 36 publications

Structure and electrical properties of [(Na_0.825K_0.175)_0.5Bi_0.5]_1+xTiO₃piezoceramics with A-site nonstoichiometry

Structure and electrical properties of [(Na_0.825K_0.175)_0.5Bi_0.5]_1+xTiO₃piezoceramics with A-site nonstoichiometry

Lead-free rare earth-modified (K0.44Na0.52Li0.04)(Nb0.86Ta0.1Sb0.04)O3 ceramics: phase structure, electrical and photoluminescence properties

Influence of BiFeO3 doping on structural and electrical properties of KNN–LS based lead-free piezoceramics

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Improved piezoelectricity and high strain response of (1 − x)(0.948K0.5Na0.5NbO3 − 0.052LiSbO3) − xBi2O3 ceramics

Cited by 5 publications

References 36 publications

Structure and electrical properties of [(Na0.825K0.175)0.5Bi0.5]1+xTiO3piezoceramics with A-site nonstoichiometry

Structure and electrical properties of [(Na0.825K0.175)0.5Bi0.5]1+xTiO3piezoceramics with A-site nonstoichiometry

Lead-free rare earth-modified (K0.44Na0.52Li0.04)(Nb0.86Ta0.1Sb0.04)O3 ceramics: phase structure, electrical and photoluminescence properties

Influence of BiFeO3 doping on structural and electrical properties of KNN–LS based lead-free piezoceramics

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Structure and electrical properties of [(Na_0.825K_0.175)_0.5Bi_0.5]_1+xTiO₃piezoceramics with A-site nonstoichiometry

Structure and electrical properties of [(Na_0.825K_0.175)_0.5Bi_0.5]_1+xTiO₃piezoceramics with A-site nonstoichiometry