The domain processes and piezoeffect in polycrystalline ferroelectrics

Luchaninov, A. G.; Shil'nikov, A. V.; Shuvalov, L. A.; Shipkova, I. Ju.

doi:10.1080/00150198908217576

Cited by 42 publications

(18 citation statements)

References 2 publications

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“…Many authors have proposed that domain wall motions are pinned by grain boundaries. 20,22,23 In particular, Xu et al 20 have drawn this conclusion after studying the grain size effect on the electromechanical properties. Secondly, microcracks can be developed along the grain boundaries.…”

Section: Resultsmentioning

confidence: 98%

“…21 On the other hand, the latter is predominantly caused by domain wall switching: both 180°a nd 90°domains. 20,22 Xu et al 20 suggested that significant non-180°domain wall switching occurs for a thin film with a thickness larger than 5 m. Li et al 22 attributed 60%-70% of the values of piezoelectric, dielectric, and elastic coefficients to the extrinsic contribution produced by non-180°d omain wall movements. This explains the similarity in profiles for both dielectric and mechanical responses in Figs.…”

Section: Resultsmentioning

confidence: 99%

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Simulation of electromechanical responses of ferroelectric ceramics driven by combined alternating electrical and mechanical loadings

Chung

Chow

2007

Journal of Applied Physics

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The experimental result on dielectric and mechanical properties of PbZr x Ti 1−x O 3 driven by combined alternating electrical and mechanical loadings in various phase differences has been obtained by Zhou et al. ͓J. Appl. Phys. 96, 6634 ͑2004͔͒. This paper presents the numerical simulation of this result using a two-dimensional four state Potts model. In this model, there are four different dipole orientations to reflect the coexistence of 90°and 180°domain walls. The coupling between the electrical and mechanical responses is implemented by the presence of two different ferroelastic strain states which are associated to the four different dipole orientations. The interactions of these dipoles and strains together with the mechanical energy density are incorporated into the system Hamiltonian. The enhanced and reduced electromechanical responses when the electric field and the compressive stress are out of phase and in phase, respectively, are reproduced by our model.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Simulation of electromechanical responses of ferroelectric ceramics driven by combined alternating electrical and mechanical loadings

Chung

Chow

2007

Journal of Applied Physics

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“…Experimental studies on PZT ceramics have shown that 45-70% of dielectric and piezoelectric moduli values may originate from the extrinsic contributions (Luchaninov et al 1989, Cao et al 1991. The extrinsic dielectric constant Δ T 33…”

Section: Domain Wall Motionmentioning

confidence: 99%

Piezomechanics in PZT Stack Actuators for Cryogenic Fuel Injectors

Shindo¹,

Narita²

2012

Smart Actuation and Sensing Systems - Recent Advances and Future Challenges

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“…Experimental studies on PZTs have shown that as much as 45 -70% of dielectric and piezoelectric moduli values may originate from the extrinsic contributions (9), (10) . The extrinsic dielectric constant ∆ T 33 was approximately estimated by Li et al (15) as the two thirds of the measured value.…”

Section: Model Of Domain Wall Motionmentioning

confidence: 99%

“…One of the limitations for practical use of these piezoelectric materials and products is their nonlinear behavior, which occurs due to polarization switching (4) - (6) and/or domain wall motion (7), (8) at high driving levels. Experimental studies on soft lead zirconate titanate (PZT) have shown that the dielectric and piezoelectric coefficients increase with electric field due to the extrinsic contribution at room temperature (9) - (11) . In order to optimize the performance of the piezoelectric devices with functionally graded microstructure under these conditions, it is essential to understand the nonlinear behavior in FGPMs.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Dynamic Bending and Domain Wall Motion in Functionally Graded Piezoelectric Actuators under AC Electric Fields: Simulation and Experiment

Shindo

Narita

Mikami

et al. 2006

JSME Int. J., Ser. A

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This paper describes the results of our numerical and experimental studies of the nonlinear bending behavior due to domain wall motion in functionally graded piezoelectric actuator under alternating current electric fields. A nonlinear three-dimensional finite element method is employed to simulate the dynamic response of cantilever functionally graded piezoelectric actuator. A phenomenological model of domain wall motion is used in computation, and the effects of ac electric field amplitude and frequency, number of layers, and property gradation on the deflection and internal stresses of the functionally graded bimorphs are examined. It is shown that the predicted deflection results, obtained from the numerical model, agree well with the corresponding experimental results.

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The domain processes and piezoeffect in polycrystalline ferroelectrics

Cited by 42 publications

References 2 publications

Simulation of electromechanical responses of ferroelectric ceramics driven by combined alternating electrical and mechanical loadings

Simulation of electromechanical responses of ferroelectric ceramics driven by combined alternating electrical and mechanical loadings

Piezomechanics in PZT Stack Actuators for Cryogenic Fuel Injectors

Nonlinear Dynamic Bending and Domain Wall Motion in Functionally Graded Piezoelectric Actuators under AC Electric Fields: Simulation and Experiment

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