Direct and converse piezoelectric grain-size effects in BaTiO3 ceramics with different Ba/Ti ratios

Dai, Bowen; Zheng, Peng; Bai, Wangfeng; Wen, Fei; Li, Lili; Wu, Wei; Ying, Zhihua; Liang, Zheng

doi:10.1016/j.jeurceramsoc.2018.05.011

Cited by 22 publications

(11 citation statements)

References 40 publications

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“…The direct and converse piezoelectric coefficients, d 33 and d 33 *, are taking similar values between the two methods, suggesting that the evaluation method examined here for d 33 is rational. In the case of BaTiO 3 ceramics, the different grain‐size effects on the direct and converse piezoelectric coefficients were pointed out to result in the differences between d 33 and d 33 * through the domain configurations and maximum polarization, respectively . The d 33 coefficients were obtained here under distortions of 0.2 to 1.0 nm by conducting AFM.…”

Section: Resultsmentioning

confidence: 75%

Piezoelectric property of bundled peptide nanotubes stapled by bis‐cyclic‐β‐peptide

Tabata

Takagaki

Uji

et al. 2018

Journal of Peptide Science

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Section: Resultsmentioning

confidence: 75%

Piezoelectric property of bundled peptide nanotubes stapled by bis‐cyclic‐β‐peptide

Tabata

Takagaki

Uji

et al. 2018

Journal of Peptide Science

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“…Significant properties enhancement has been reported for the ceramics with grain orientation of higher than 70% 43 . The ES1315°C‐20h ceramics showed the d 33 * of 445 pm/V, which is higher than that of the randomly oriented ceramics (grain size of 19.3 µm; d 33 * = 333 pm/V) 48 . However, the value of d 33 * in the <110>‐oriented BaTiO 3 ceramics (Grain size ≈ 75 µm, F 110 = 84.6%) was reported to be comparable to the value of the piezoelectric constant of 788 pC/N.…”

Section: Resultsmentioning

confidence: 95%

Phase evolution and <110>‐orientation mechanism in RTGG‐processed BaTiO₃ ceramics with electrical properties

et al. 2021

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The <110>‐oriented BaTiO3 ceramics were fabricated using BaCO3 matrix and H1.08Ti1.73O4.nH2O (HTO) template particles, and the mechanism of BaTiO3 phase formation was investigated. The dielectric, ferroelectric, and piezoelectric properties were also investigated. The transformation of the HTO phase into the TiO2 bronze or TiO2 (B) phase was observed at 600°C, where the BaTiO3 nucleation was accompanied by the formation of a Ba2TiO4 phase. The TiO2 phase reacted with the Ba2TiO4 phase at 800°C to give a BaTiO3 phase, whereas its reaction with the BaTiO3 resulted in the formation of BaTi2O5 phase that got decomposed into BaTiO3 and Ba6Ti17O40 phase at sintering temperature ≥1300°C. Sintering with samples’ embedding in BaTiO3 powders prevented the formation of the Ba6Ti17O40 secondary phase. The crystallographic orientation along the <110> direction (F110) was developed by the epitaxial grain growth mechanism. In addition to the contribution of the grain‐size increment for enhancing the F110, the preservation of the platelike structure was also found to have a significant impact. The ceramics prepared by the embedded sintering (grain size ≈12.4 µm and F110 = 83%) exhibited the room‐temperature dielectric constant of 1708 and piezoelectric strain constant of 445 pm/V, which are higher than those of the BaTiO3 ceramics with randomly oriented grains.

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“…When the amount of PR exceeds 20 wt%, the increased porosity and aggregates can be ascribed to the generation of large-amount gas phase [36]. To be more specific, the introduction of PR dispersant in a coating manner can activate their surface, thereby reducing the agglomeration of nanopowders and optimizing the non-uniformity distribution in traditional granulation [37]. Figure 4f reveals the XRD patterns of this series of samples, it is noted that the splitting of the 200/002 peak is gradually evident and is most pronounced at 20 wt%, which proves that the sample has the strongest tetragonality.…”

Section: Characterizationmentioning

confidence: 99%

A new strategy to achieve the controllable preparation of nanoceramics with BaTiO3@resin core–shell nanoparticles

et al. 2020

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In this paper, phenolic resin (PR) is coated on the monodispersed BaTiO 3 nanopowders (C-BTO) prepared by the coprecipitation method via a core-shell manner. This PR can optimize nanopowders' dispersibility in the granulation, and act as a grain growth inhibitor during sintering. So BaTiO 3 nanoceramics with dense and size-controlled morphology were achieved at a low sintering temperature. The microstructural and dielectric studies show that the grain size and dielectric properties initially increase and then decrease as the amount of PR increases. Moreover, the activation of PR is optimal at 20 wt%, and obtained ceramics have a high density and uniform grain size, with a relatively high dielectric constant (ɛ max) of 3545 and low dielectric loss (tanδ) of 0.011. Besides, by tailoring the particle size of C-BTO@PR powders, dense BaTiO 3 ceramics with mean size of 135-308 nm can be obtained with sizes similar to initial particle. The results demonstrate that PR coated BaTiO 3 nanopowders in core-shell structure is an effective strategy to prepare BaTiO 3 nanoceramics controllably.

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Direct and converse piezoelectric grain-size effects in BaTiO3 ceramics with different Ba/Ti ratios

Cited by 22 publications

References 40 publications

Piezoelectric property of bundled peptide nanotubes stapled by bis‐cyclic‐β‐peptide

Piezoelectric property of bundled peptide nanotubes stapled by bis‐cyclic‐β‐peptide

Phase evolution and <110>‐orientation mechanism in RTGG‐processed BaTiO₃ ceramics with electrical properties

A new strategy to achieve the controllable preparation of nanoceramics with BaTiO3@resin core–shell nanoparticles

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Direct and converse piezoelectric grain-size effects in BaTiO3 ceramics with different Ba/Ti ratios

Cited by 22 publications

References 40 publications

Piezoelectric property of bundled peptide nanotubes stapled by bis‐cyclic‐β‐peptide

Piezoelectric property of bundled peptide nanotubes stapled by bis‐cyclic‐β‐peptide

Phase evolution and <110>‐orientation mechanism in RTGG‐processed BaTiO3 ceramics with electrical properties

A new strategy to achieve the controllable preparation of nanoceramics with BaTiO3@resin core–shell nanoparticles

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Phase evolution and <110>‐orientation mechanism in RTGG‐processed BaTiO₃ ceramics with electrical properties