Structure, dielectric properties and impedance analysis of lead-free (1 − x)Na0.5Bi0.5TiO3-xSrTiO3 ceramics

Lou, Gengjian; Yin, Qingya; Duan, Aiping; Cao, Desheng; Yin, Xing

doi:10.1007/s10854-018-8607-1

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…The second peak is due to the phase transformation sequence of PNRs observed in relaxor ferroelectrics at high temperatures 39 . T F‐R can be associated with the thermal activation of PNRs resulting from the relaxation behavior of dielectric materials in a limited temperature range below the Burns temperature ( T B ) 41,42 . NBT templates were used for texturing in this study, and they do not act as additional material such as ST or BT templates as used in another study in the literature.…”

Section: Resultsmentioning

confidence: 99%

“…39 T F-R can be associated with the thermal activation of PNRs resulting from the relaxation behavior of dielectric materials in a limited temperature range below the Burns temperature (T B ). 41,42 NBT templates were used for texturing in this study, and they do not act as additional material such as ST or BT templates as used in another study in the literature. Thus, T F-R and T m temperatures of random and textured NBT-0.25ST ceramics were not shifted.…”

Section: Electrical Propertiesmentioning

confidence: 99%

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Effect of texture on ultra‐high strain behavior in eco‐friendly NBT‐0.25ST ceramics using NBT template

Berksoy‐Yavuz,

Kaya,

Yalcin

et al. 2024

J Am Ceram Soc.

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Abstract<001> oriented textured (Na0.5Bi0.5Ti)O3‐0.25SrTiO3 (NBT‐0.25ST) system was fabricated using 10 mol% plate‐like NBT template particles to enhance the electrical properties. Random and textured samples were prepared by a tape‐casting method. Lotgering factor for textured sample was calculated as 88%. Dielectric values of the samples were comparable, and this means texturing using NBT samples of this orientation did not change the dielectric constant. The maximum unipolar strain values of random and textured NBT‐0.25ST systems were found to be as ∼0.09% and ∼0.59%, respectively. This current study emphasizes the significant difference in maximum unipolar strain values between the random and textured versions of the NBT‐0.25ST system, indicating the superiority of the textured material in terms of responsiveness to the electric field. The FOM under high electric fields of textured and random NBT‐0.25ST was found to increase almost 45‐fold compared with random case.

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Section: Resultsmentioning

confidence: 99%

Section: Electrical Propertiesmentioning

confidence: 99%

Effect of texture on ultra‐high strain behavior in eco‐friendly NBT‐0.25ST ceramics using NBT template

Berksoy‐Yavuz,

Kaya,

Yalcin

et al. 2024

J Am Ceram Soc.

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“…However, there is still a need to enhance the properties of NBT-based ceramics before they can replace lead-based materials. Improvements in piezoelectric properties have been studied in NBT-based solid solutions with morphotropic phase boundary (MPB) [2][3][4][5][6][7][8] such as Na 0.5 Bi 0.5 TiO 3 -SrTiO 3 (NBT-ST), Na 0.5 Bi 0.5 TiO 3 -BaTiO 3 (NBT-BT), Na 0.5 Bi 0.5 TiO 3 -K 0.5 Bi 0.5 TiO 3 -BaTiO 3 (NBT-KBT-BT), and Na 0.5 Bi 0.5 TiO 3 -K 0.5 Bi 0.5 TiO 3 -SrTiO 3 (NBT-KBT-ST), but with limited success. It is difficult to increase the piezoelectric performances of NBT-based binary and ternary polycrystalline ceramics further by only composition tuning.…”

Section: Introductionmentioning

confidence: 99%

Impact of Phase Structure on Piezoelectric Properties of Textured Lead-Free Ceramics

et al. 2020

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The impact of phase structure on piezoelectric performances of <001> textured Na0.5Bi0.5TiO3 (NBT) based lead-free ceramics was studied, including 0.88NBT-0.08K0.5Bi0.5TiO3-0.04BaTiO3 (88NBT) with morphotropic phase boundary (MPB) composition and 0.90NBT-0.07K0.5Bi0.5TiO3-0.03BaTiO3 (90NBT) with rhombohedral phase. Both textured ceramics exhibit a high Lotgering factor, being on the order of f~96%. The piezoelectric coefficients of the textured 88NBT and 90NBT ceramics are increased by 20% and 60%, respectively, comparing to their randomly oriented ceramics. The piezoelectric enhancement of 90NBT textured ceramic is three times higher than 88NBT, revealing the phase structure plays a significant role in enhancing the piezoelectric performances of textured ceramics. Of particular significance is that the 90NBT textured ceramic exhibits almost hysteresis-free strain behavior. The enhanced piezoelectric property with minimal strain hysteresis is attributed to the <001> poled rhombohedral engineered domain configuration.

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Estimation of relaxor behavior in Sr2+ doped Na0.5Bi0.5TiO3 ceramics

Praharaj

Rout

2020

J Mater Sci: Mater Electron

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Structure, dielectric properties and impedance analysis of lead-free (1 − x)Na0.5Bi0.5TiO3-xSrTiO3 ceramics

Cited by 5 publications

References 19 publications

Effect of texture on ultra‐high strain behavior in eco‐friendly NBT‐0.25ST ceramics using NBT template

Effect of texture on ultra‐high strain behavior in eco‐friendly NBT‐0.25ST ceramics using NBT template

Impact of Phase Structure on Piezoelectric Properties of Textured Lead-Free Ceramics

Estimation of relaxor behavior in Sr2+ doped Na0.5Bi0.5TiO3 ceramics

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