Characterization of piezoelectric materials with large piezoelectric and electromechanical coupling coefficients

Jiang, Wenhua; Zhang, Rui; Jiang, Bei; Cao, Wenwu

doi:10.1016/s0041-624x(02)00436-5

Cited by 82 publications

(45 citation statements)

References 11 publications

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“…The piezoelectric layers under consideration are composed of PZN-8%PT. The material's properties 14,15,20 of the piezoelectric layer and middle layer are listed in Table 1. The PCTB was built with the following dimensions: l ¼ 40 mm, h p ¼ 0:2 mm, h m ¼ 0:3 mm and w ¼ 10 mm.…”

Section: Applications and Discussionmentioning

confidence: 99%

“…The electric field in the piezoelectric layers is generally assumed to be constant; this approximation is valid for piezoelectric elements with small electromechanical situation. However, several piezoelectric materials, such as PZN-PT, [14][15][16] have large piezoelectric coefficients and EMCCs beyond small electromechanical situation. Tadmor et al 12 derived the change in effective field, and presented the strain effect on the electric field in the piezoelectric layer.…”

Section: Piezo Effect: Basic Constitutive Equationsmentioning

confidence: 99%

“…Tadmor 12 pointed out electromechanical coupling between the electric field and the strain in the piezoelectric layer affected the effective moment of inertia of the piezoelectric layers, but no exact solution for PCTB was given. Ferroelectric single crystals, [13][14][15][16] such as PZN-PT and PMN-PT, are constantly providing novel prospects in piezoelectric bending devices because of their extraordinarily large piezoelectric coefficients. To date, the dynamic admittance representation of symmetrical PCTB with large piezoelectric coefficient and electromechanical coupling coefficient (EMCC) has not been discussed in detail.…”

Section: Introductionmentioning

confidence: 99%

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Theoretical analysis of dynamic property for piezoelectric cantilever triple-layer benders with large piezoelectric and electromechanical coupling coefficients

Gong

Pan

et al. 2016

J. Adv. Dielect.

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Ferroelectric single crystals, such as PZN-PT, provide novel prospects in piezoelectric bending devices such as actuators, sensors or energy harvesters because of their extraordinarily large piezoelectric coefficients. However, large errors may occur in some analyses on electromechanical behaviors using the conventional models. We find the bending rigidity of piezoelectric composited bender is affected not only by thickness, width and the modulus of elasticity of the different layers but also electromechanical coupling coefficients (EMCCs) of the piezoelectric material and the larger EMCCs mean more marked effect. This paper focuses on the derivation of the applied input excitation and output response characteristics in the circular frequency domain for piezoelectric cantilever triple-layer benders (PCTBs), taking into account the secondary piezoelectric effect. Analytic dynamic descriptions of such actuators and transducers are obtained. Based on the presented models dynamic features of PCTB composed of PZN-8%PT are calculated, and numerical results coincide with simulations using the finite element method (FEM).

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Section: Applications and Discussionmentioning

confidence: 99%

Section: Piezo Effect: Basic Constitutive Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical analysis of dynamic property for piezoelectric cantilever triple-layer benders with large piezoelectric and electromechanical coupling coefficients

Gong

Pan

et al. 2016

J. Adv. Dielect.

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“…Therefore, it is useful to convert e ij to the corresponding d ij . The relation between the relevant components are given by [87] The origin of the enormous increase of the piezoelectric response in ScAlN, is due to an increase in the internal strain term of the e 33 coefficient and a decrease in elastic constant C 33 . [14] With the addition that C 33 > C 31 and d 33 > d 31 , the second term in Eq.…”

Section: Piezoelectric Response Dmentioning

confidence: 99%

A Theoretical Study of Piezoelectricity, Phase Stability, and Surface Diffusion in Disordered Multicomponent Nitrides

Tholander¹

2014

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Disordered multicomponent nitride thin film can be used for various applications. The focus of this Licentiate Thesis lies on the theoretical study of piezoelectric properties, phase stability and surface diffusion in multifunctional hard coating nitrides using density functional theory (DFT).Piezoelectric thin films show great promise for microelectromechanical systems (MEMS), such as surface acoustic wave resonators or energy harvesters. One of the main benefits of nitride based piezoelectric devices is the much higher thermal stability compared to the commonly used lead zirconate titanate (PZT) based materials. This makes the nitride based material more suitable for application in, e.g., jet engines.The discovery that alloying AlN with ScN can increase the piezoelectric response more than 500% due to a phase competition between the wurtzite phase in AlN and the hexagonal phase in ScN, provides a fundamental basis for constructing highly responsive piezoelectric thin films. This approach was utilized on the neighboring nitride binaries, where ScN or YN was alloyed with AlN, GaN, or InN. It established the general role of volume matching the binaries to easily achieve a structural instability in order to obtain a maximum increase of the piezoelectric response. For Sc 0.5 Ga 0.5 N this increase is more than 900%, compared to GaN. Y 1−x In x N is, however, the most promising alloy with the highest resulting piezoelectric response seconded only by Sc 0.5 Al 0.5 N.Phase stability and lattice parameters (stress-strain states) of the Y 1−x Al x N alloy have been calculated in combination with experimental synthesis.Hard protective coatings based on nitride thin films have been used in industrial applications for a long time. Two of the most successful coatings are TiN and the metastable Ti 1−x Al x N. Although these two materials have been extensively investigated both experimentally and theoretically, at the atomic level little is known about Ti 1−x Al x N diffusion properties. This is in large part due to problems with configurational disorder in the alloy, because Ti and Al atoms are placed randomly at cation positions in the lattice, considerably increasing the complexity of the problem. To deal with this issues, we have used special quasi-random structure (SQS) models, as well as studying dilute concentrations of Al.One of the most important mechanisms related to the growth of Ti 1−x Al x N is surface diffusion. Because Ti 1−x Al x N is a metastable material it has to be grown iii iv as a thin film with methods such as physical vapor deposition (PVD), in which surface diffusion plays a pivotal role in determining the microstructure evolution of the film.In this work, the surface energetics and mobility of Ti and Al adatoms on a disordered Ti 0.5 Al 0.5 N(0 0 1) surface are studied. Also the effects on the adatom energetics of Ti, Al, and N by the substitution of one Ti with an Al surface atom in TiN(0 0 1), TiN(0 1 1), and TiN(1 1 1) surfaces is studied. This provides an indepth atomistic understanding o...

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“…The derived values of s 11 , s 33 , s 12 and s 13 also become too sensitive to the variation of c 13 when its value is close to those of c 11 and c 33 . A reversed strategy was suggested by Jiang et al (2003) using detailed error analysis to determine the best strategy for each given material.…”

Section: Experimental Advancesmentioning

confidence: 99%

Characterization of Properties and Damage in Piezoelectrics

Rus¹,

Palma²,

Suárez³

2010

Piezoelectric Ceramics

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Characterization of piezoelectric materials with large piezoelectric and electromechanical coupling coefficients

Cited by 82 publications

References 11 publications

Theoretical analysis of dynamic property for piezoelectric cantilever triple-layer benders with large piezoelectric and electromechanical coupling coefficients

Theoretical analysis of dynamic property for piezoelectric cantilever triple-layer benders with large piezoelectric and electromechanical coupling coefficients

A Theoretical Study of Piezoelectricity, Phase Stability, and Surface Diffusion in Disordered Multicomponent Nitrides

Characterization of Properties and Damage in Piezoelectrics

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