Ferroelectric Materials: Domain Wall Displacement is the Origin of Superior Permittivity and Piezoelectricity in BaTiO<sub>3</sub> at Intermediate Grain Sizes (Adv. Funct. Mater. 7/2014)

Ghosh, Dipankar; Sakata, Akito; Carter, Jared; Thomas, Pam A.; Han, HyukSu; Nino, Juan C.; Jones, Jacob L.

doi:10.1002/adfm.201470042

Cited by 4 publications

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“…Very recently, N. Liu et al showed the existence of low-permittivity paraelectric grain boundary can be a key factor leading to the unusual overall hysteresis behavior of barium titanate (BaTiO 3 ) ceramics. D. Ghosh et al validated the contribution of domain wall motion to macroscopic property coefficients in BaTiO 3 ceramics with intermediate grain sizes using high-energy XRD technique [5]. However, experiments directly measuring the effect of domain wall motion on macroscopic properties in ferroelectric ceramics with different grain sizes have rarely been reported.…”

Section: Introductionmentioning

confidence: 99%

Grain Size Effects on the Properties of MPB-BSPT Ceramics under Uniaxial Compressive Stress and Electric Field

Zhang

Wang

2014

KEM

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(1-x)BiScO3-xPbTiO3 (BSPT) ceramics with grain size range of 0.5~2.5 μm at morphotropic phase boundary (MPB) were prepared by conventional sintering method. The grain sizes of the ceramics were determined by scanning electron microscopy (SEM). The grain size effects on the structure of BPST ceramics were analyzed by X-ray diffraction (XRD). The ferroelectric hysteresis response under various uniaxial compressive stress of up to 150 MPa was measured. With increasing the mechanical uniaxial stress, the remnant polarization (Pr) and the coercive field (Ec) were significantly reduced. The direct current (DC) bias dependence of capacitance of MPB-BSPT ceramics with different grain sizes was compared. The results indicated that the domain switching was prevented by the compressive stress. The domain size and domain structure were influenced by the grain size. The domain switching under uniaxial stress and electric field became more difficult due to the decrease of grain sizes. The grain size as well as the domain size played a key role in the properties under external uniaxial compressive stress and electric field.

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Section: Introductionmentioning

confidence: 99%

Grain Size Effects on the Properties of MPB-BSPT Ceramics under Uniaxial Compressive Stress and Electric Field

Zhang

Wang

2014

KEM

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Simultaneous increase in piezoelectric response and Curie point in BaTiO3 based Pb-free piezoceramic

Tina,

Punetha,

Adhikary

et al. 2024

Scripta Materialia

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Low sintering temperature for lead‐free BiFeO₃‐BaTiO₃ ceramics with high piezoelectric performance

et al. 2018

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Through modification of the heat-treatment process using a higher heating rate and a lower binder burnout temperature, the piezoelectric performance of waterquenched 0.67Bi 1.05 FeO 3 -0.33BaTiO 3 (BF33BT) lead-free piezoelectric ceramics was improved. The observed physical properties of BF33BT ceramics were very sensitive to the process temperatures. The sintering temperature (T S ) was changed within a narrow temperature range, and its effects were investigated. The largest rhombohedral distortion (90°-α R = 0.14°) and tetragonality (c T /a T = 1.022) were observed for the ceramic sintered at 980°C, and its Curie temperature was 476°C.This ceramic showed good piezoelectric properties and large grains; the piezoelectric sensor charge coefficient (d 33 ) was 352 pC/N, and the piezoelectric actuator charge coefficient (d Ã 33 ) was 270 pm/V. The high piezoelectric performance and low T S of BF33BT ceramics indicate their potential as new low-cost eco-friendly lead-free piezoceramics. K E Y W O R D Sgrain size, lead-free, piezoelectric, sintering temperature, structural distortion

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Ferroelectric Materials: Domain Wall Displacement is the Origin of Superior Permittivity and Piezoelectricity in BaTiO₃ at Intermediate Grain Sizes (Adv. Funct. Mater. 7/2014)

Cited by 4 publications

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Grain Size Effects on the Properties of MPB-BSPT Ceramics under Uniaxial Compressive Stress and Electric Field

Grain Size Effects on the Properties of MPB-BSPT Ceramics under Uniaxial Compressive Stress and Electric Field

Simultaneous increase in piezoelectric response and Curie point in BaTiO3 based Pb-free piezoceramic

Low sintering temperature for lead‐free BiFeO₃‐BaTiO₃ ceramics with high piezoelectric performance

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Ferroelectric Materials: Domain Wall Displacement is the Origin of Superior Permittivity and Piezoelectricity in BaTiO3 at Intermediate Grain Sizes (Adv. Funct. Mater. 7/2014)

Cited by 4 publications

References 0 publications

Grain Size Effects on the Properties of MPB-BSPT Ceramics under Uniaxial Compressive Stress and Electric Field

Grain Size Effects on the Properties of MPB-BSPT Ceramics under Uniaxial Compressive Stress and Electric Field

Simultaneous increase in piezoelectric response and Curie point in BaTiO3 based Pb-free piezoceramic

Low sintering temperature for lead‐free BiFeO3‐BaTiO3 ceramics with high piezoelectric performance

Contact Info

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Ferroelectric Materials: Domain Wall Displacement is the Origin of Superior Permittivity and Piezoelectricity in BaTiO₃ at Intermediate Grain Sizes (Adv. Funct. Mater. 7/2014)

Low sintering temperature for lead‐free BiFeO₃‐BaTiO₃ ceramics with high piezoelectric performance