Applications of Lead-Free Piezoelectrics

Uchino, Kenji

doi:10.1007/978-1-4419-9598-8_17

Cited by 7 publications

(4 citation statements)

References 11 publications

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“…We mention that σ ε * 33 is linked to these effective parameters in accordance with Eqs. ( 8), (10, (12), and (13).…”

Section: Achieving a Large Piezoelectric Anisotropymentioning

confidence: 99%

“…Lead-free ferroelectric solid solutions with the perovskite-type structure are of interest due to their promising piezoelectric performance, considerable electromechanical coupling [8][9][10][11] and their potential application in a variety of transducer applications [10,13]. For example, ferroelectric ceramics based on alkali niobates [9,10] have become a large group of lead-free materials that are attractive due to their high piezoelectric sensitivity, large piezoelectric anisotropy, figures of merit, and high-power performance [13,14]. Of additional interest are domain-engineered SCs based on alkali niobates-tantalates with optimised electromechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Piezoelectric sensitivity and hydrostatic response of novel lead-free 2–0–2 composites with two single-crystal components

Topolov

Bowen

Панич

et al. 2017

Materials Chemistry and Physics

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“…We mention that σ ε * 33 is linked to these effective parameters in accordance with Eqs. ( 8), (10, (12), and (13).…”

Section: Achieving a Large Piezoelectric Anisotropymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Piezoelectric sensitivity and hydrostatic response of novel lead-free 2–0–2 composites with two single-crystal components

Topolov

Bowen

Панич

et al. 2017

Materials Chemistry and Physics

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“…Piezoelectric lead zirconate titanate (Pb(Zr 0.52 Ti 0.48 )O 3 or PZT) ceramic exhibits high piezoelectric coupling coefficient and is used in numerous applications such as sensors and actuators [1][2]. In civil engineering applications, cement based composites consisting of PZT have been developed recently [3][4][5][6][7][8][9].…”

Section: Troductiomentioning

confidence: 99%

Fabrication and Properties of PZT-Cement-Encapsulated Carbon Composites

Chaipanich

Jaitanong

2009

KEM

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Lead zirconate titanate, Pb(Zr0.52Ti0.48)O3 (PZT) has excellent piezoelectric properties and has been used in a number of applications such as sensors and actuators. Recently, PZT has been used with a cement based material to produce new types of composite. These new piezoelectric-cement based composites have been developed for sensor applications in civil engineering works where these composites would provide better matching to concrete than the existing normal piezoelectric ceramic or piezoelectric-polymer composites. In this work, encapsulated carbon addition of 2% by volume was added to the PZT-cement composites using pressed-cured method. Dielectric properties of the composites were investigated from 1 to 100 kHz as a preliminary investigation. The results show that the dielectric constant was found to be higher for the composite with the addition of encapsulated carbon. The dielectric loss of the composite with the encapsulated carbon, however, was found to be less when compared to the composite with no encapsulated carbon. Scanning electron micrographs of these composites also revealed that a dense microstructure can be obtained from this method.

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“…the desire to produce high-performance lead-free FCs and improve their electromechanical properties [17][18][19] has become an important stimulus to manufacture novel porous piezoelectric materials [5][6][7] and structures with improved characteristics.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric anisotropy and energy-harvesting characteristics of novel sandwich layer BaTiO₃structures

Roscow

Topolov

Taylor

et al. 2017

Smart Mater. Struct.

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This paper presents a detailed modelling and experimental study of the piezoelectric and dielectric properties of novel ferroelectric sandwich layer BaTiO 3 structures that consist of an inner porous layer and dense outer layers. The dependencies of the piezoelectric coefficients * 3 j d and dielectric permittivity σ ε * 33 of the sandwich structure on the bulk relative density α are analysed by taking into account an inner layer with a porosity volume fraction of 0.5-0.6. The observed changes in * 3 j d and σ ε * 33 are interpreted within the framework of a model of a * 33 d * 33 g /( * 31 d * 31 g )∼ 10 2 at * 33 d * 33 g ∼ 10 -12 Pa -1 , and values of the hydrostatic piezoelectric coefficients * h d ≈ 100 pC / N and * h g ≈ 20 mV . m / N are achieved at α= 0.64-0.70. The studied BaTiO 3 -based sandwich structures has advantages over highly anisotropic PbTiO 3 -type ceramics as a result of the higher piezoelectric activity of ceramic BaTiO 3 and can be used in piezoelectric sensor, energy-harvesting and related applications.

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Applications of Lead-Free Piezoelectrics

Cited by 7 publications

References 11 publications

Piezoelectric sensitivity and hydrostatic response of novel lead-free 2–0–2 composites with two single-crystal components

Piezoelectric sensitivity and hydrostatic response of novel lead-free 2–0–2 composites with two single-crystal components

Fabrication and Properties of PZT-Cement-Encapsulated Carbon Composites

Piezoelectric anisotropy and energy-harvesting characteristics of novel sandwich layer BaTiO₃structures

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Applications of Lead-Free Piezoelectrics

Cited by 7 publications

References 11 publications

Piezoelectric sensitivity and hydrostatic response of novel lead-free 2–0–2 composites with two single-crystal components

Piezoelectric sensitivity and hydrostatic response of novel lead-free 2–0–2 composites with two single-crystal components

Fabrication and Properties of PZT-Cement-Encapsulated Carbon Composites

Piezoelectric anisotropy and energy-harvesting characteristics of novel sandwich layer BaTiO3structures

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Piezoelectric anisotropy and energy-harvesting characteristics of novel sandwich layer BaTiO₃structures