Full Set of Material Properties of Lead-Free PIC 700 for Transducer Designers

Fenu, Nicola Giuseppe; Giles-Donovan, N.; Sadiq, Muhammad; Cochran, Sandy

doi:10.1109/tuffc.2020.3044790

Cited by 13 publications

(7 citation statements)

References 30 publications

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“…All samples had their BNT polar axis oriented along the z axis. The elastic constants C 11 , C 12 , C 13 , C 33 , C 55 , and C 66 of BNT were 13.10, 3.68, −3.12, 12.29, 4.81, and 4.70 (×10 10 N m –2 ), respectively, with piezoelectric stress constants e 31 , e 33 , and e 15 of −6.35, 11.08, and 4.95 cm –2 , respectively. , Piezopotential outputs from a 10 8 Pa z axis pressure load on a sample of various particle sizes are shown in Figure S8. Based on ionic charge theory, the piezopotential generated by the non-centrosymmetric structure was directly proportional to the applied pressure.…”

Section: Resultsmentioning

confidence: 95%

Enhanced Piezocatalytic Activity in Bi_1/2Na_1/2TiO₃for Water Splitting by Oxygen Vacancy Engineering

Ranjan

Hsiao

Lin

et al. 2022

ACS Appl. Mater. Interfaces

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Piezoelectric materials have demonstrated applicability in clean energy production and environmental wastewater remediation through their ability to initiate a number of catalytic reactions. In this study, we used a conventional sol–gel method to synthesize lead-free rhombohedral R3c bismuth sodium titanate (BNT) particles of various sizes. When used as a piezocatalyst to generate H2 through water splitting, the BNT samples provided high production rates (up to 506.70 μmol g–1 h–1). These piezocatalysts also degraded the organic pollutant methylene blue (MB, 20 mg L–1) with high efficiency (up to k = 0.039 min–1), suggesting their potential to treat polluted water. Finally, we found that the piezopotential caused band tilting in the semiconductor and aided charge transfer such that recombination was suppressed and the rate of H2 production increased. The mechanism of piezoelectric catalysis involved oxygen vacancies, the size of the catalyst, and the internal electric field playing important roles to enhance electron–hole separation, which further enhanced the catalysis reactions.

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Section: Resultsmentioning

confidence: 95%

Enhanced Piezocatalytic Activity in Bi_1/2Na_1/2TiO₃for Water Splitting by Oxygen Vacancy Engineering

Ranjan

Hsiao

Lin

et al. 2022

ACS Appl. Mater. Interfaces

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“…The single‐sample test method is the most effective approach to address this issue. Currently, two inversion methods are used as single‐sample test methods for measuring full matrix parameters, including the resonance spectrum inversion method and the impedance spectrum inversion method 9–14 . Both methods offer distinct advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, two inversion methods are used as single-sample test methods for measuring full matrix parameters, including the resonance spectrum inversion method and the impedance spectrum inversion method. [9][10][11][12][13][14] Both methods offer distinct advantages and disadvantages. For instance, the resonance spectrum inversion method converges more accurately as it has more resonance modes and does not easily converge to local solutions.…”

Section: Introductionmentioning

confidence: 99%

A quasi‐31‐vibrator method for the characterization of piezoelectric full matrix parameters using a single sample

Huo,

Wang,

Sun

et al. 2024

J Am Ceram Soc.

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The full matrix parameters of a piezoelectric material are crucial for designing and evaluating piezoelectric devices. However, due to their inverse problematic nature, commonly used single‐sample characterization methods heavily depend on the accuracy of initial values and mode matching. In this paper, we propose a quasi‐31‐vibrator method to directly evaluate these parameters by designing the sample geometry and establishing the relationship equation between the parameters. This approach completely bypasses the need for characteristic spectrum simulation and mode identification processes. Subsequently, we tested the full matrix parameters of PZT‐5H ceramics and compared the simulated impedance spectra with the measured ones. The presence of well‐fitting spectra validates the feasibility of the method. This method will contribute to characterize the parameters of new piezoelectric materials and advance the intelligent implementation of measuring full matrix parameters.

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“…However, this knowledge is largely insufficient. Consistent piezoelectric-elastic-dielectric material coefficient matrices in complex form, i.e., including all losses, which define the various alternative forms of the constitutive equations of piezoelectricity, are required for reliable virtual prototyping in the design of new devices, which is a relatively inexpensive and time-saving procedure [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…On the one hand, longitudinal poling is a problem when dealing with materials of a high coercive field [ 11 ] or low dielectric breakdown [ 12 ]. On the other hand, the coupling of shear modes and other lateral and contour modes, which takes place in the shear resonance of standard length-poled shear plates, is unavoidable [ 3 , 4 , 13 , 14 ]. Unfortunately, this leads to the stringent requirement of aspect ratios between the length for poling ( L ), the width ( w ), and the thickness for electrical excitation ( t ) of the plate of L , w > 20 t [ 15 ] and to an underestimation of the piezoelectric coefficients [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Determination of the PIC700 Ceramic’s Complex Piezo-Dielectric and Elastic Matrices from Manageable Aspect Ratio Resonators

Pardo

García

Schubert³

et al. 2021

Materials

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Achieving good piezoelectric properties, such as the widely reported d33 charge coefficient, is a good starting point in establishing the potential applicability of piezoceramics. However, piezoceramics are only completely characterized by consistent piezoelectric-elastic-dielectric material coefficient matrices in complex form, i.e., including all losses. These matrices, which define the various alternative forms of the constitutive equations of piezoelectricity, are required for reliable virtual prototyping in the design of new devices. To meet this need, ten precise and accurate piezoelectric dielectric and elastic coefficients of the material, including all losses, must be determined for each alternative. Due to the difficulties arising from the coupling of modes when using the resonance method, this complete set of parameters is scarcely reported. Bi0.5Na0.5TiO3-based solid solutions are already commercially available in Europe and Japan. Here, we report a case study of the determination of these sets of material coefficients (diα, giα, eiα and hiα; sE,Dαβ and cE,Dαβ; εTik and εSik; and βTik and βSik), including all losses, of the commercial PIC700 eco-piezoceramic. Plate, disk, and cylinder ceramic resonators of a manageable aspect ratio were used to obtain all the material coefficients. The validation procedure of the matrices is also given by FEA modeling of the considered resonators.

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Full Set of Material Properties of Lead-Free PIC 700 for Transducer Designers

Cited by 13 publications

References 30 publications

Enhanced Piezocatalytic Activity in Bi_1/2Na_1/2TiO₃for Water Splitting by Oxygen Vacancy Engineering

Enhanced Piezocatalytic Activity in Bi_1/2Na_1/2TiO₃for Water Splitting by Oxygen Vacancy Engineering

A quasi‐31‐vibrator method for the characterization of piezoelectric full matrix parameters using a single sample

Determination of the PIC700 Ceramic’s Complex Piezo-Dielectric and Elastic Matrices from Manageable Aspect Ratio Resonators

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Full Set of Material Properties of Lead-Free PIC 700 for Transducer Designers

Cited by 13 publications

References 30 publications

Enhanced Piezocatalytic Activity in Bi1/2Na1/2TiO3for Water Splitting by Oxygen Vacancy Engineering

Enhanced Piezocatalytic Activity in Bi1/2Na1/2TiO3for Water Splitting by Oxygen Vacancy Engineering

A quasi‐31‐vibrator method for the characterization of piezoelectric full matrix parameters using a single sample

Determination of the PIC700 Ceramic’s Complex Piezo-Dielectric and Elastic Matrices from Manageable Aspect Ratio Resonators

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Product

Resources

About

Enhanced Piezocatalytic Activity in Bi_1/2Na_1/2TiO₃for Water Splitting by Oxygen Vacancy Engineering

Enhanced Piezocatalytic Activity in Bi_1/2Na_1/2TiO₃for Water Splitting by Oxygen Vacancy Engineering