Lead-free piezoelectric single crystal based 1-3 composites for ultrasonic transducer applications

Dan Zhou; Kwok Ho Lam; Yan Chen; Qinhui Zhang; Yat Ching Chiu; Haosu Luo; Jiyan Dai; Helen Lai Wa Chan

doi:10.1016/j.sna.2012.05.030

Lead-free piezoelectric single crystal based 1-3 composites for ultrasonic transducer applications

Dan Zhou, Kwok Ho Lam, Yan Chen, Qinhui Zhang, Yat Ching Chiu, Haosu Luo, Jiyan Dai, Helen Lai Wa Chan

Research output: Journal article publication › Journal article › Academic research › peer-review

81 Citations (Scopus)

Abstract

In this work, lead-free 1-3 composites based on piezoelectric 0.947Na0.5Bi0.5TiO3-0.053BaTiO3(NBT-0.053BT) single crystal and epoxy are fabricated for ultrasonic transducer applications by a modified dice-and-fill method. Excellent properties for ultrasonic transducer applications have been achieved, such as high electromechanical coupling coefficient (kt= 73%), lower acoustic impedance (Z = 16 MRayl) and moderate dielectric constant. Based on this lead-free piezoelectric single crystal composite, single-element ultrasonic transducer and linear array have been fabricated and characterized. Both types of transducers exhibit similar performance with broad bandwidth of exceeding 100%. The promising results show that these lead-free composites have the potential to be used for high-performance ultrasonic transducers.

Original language	English
Pages (from-to)	95-100
Number of pages	6
Journal	Sensors and Actuators, A: Physical
Volume	182
DOIs	https://doi.org/10.1016/j.sna.2012.05.030
Publication status	Published - 1 Aug 2012

Keywords

1-3 composite
Lead-free
NBT-BT single crystal
Ultrasonic transducer

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering

More information

10.1016/j.sna.2012.05.030

Cite this

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title = "Lead-free piezoelectric single crystal based 1-3 composites for ultrasonic transducer applications",

abstract = "In this work, lead-free 1-3 composites based on piezoelectric 0.947Na0.5Bi0.5TiO3-0.053BaTiO3(NBT-0.053BT) single crystal and epoxy are fabricated for ultrasonic transducer applications by a modified dice-and-fill method. Excellent properties for ultrasonic transducer applications have been achieved, such as high electromechanical coupling coefficient (kt= 73%), lower acoustic impedance (Z = 16 MRayl) and moderate dielectric constant. Based on this lead-free piezoelectric single crystal composite, single-element ultrasonic transducer and linear array have been fabricated and characterized. Both types of transducers exhibit similar performance with broad bandwidth of exceeding 100%. The promising results show that these lead-free composites have the potential to be used for high-performance ultrasonic transducers.",

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author = "Dan Zhou and Lam, {Kwok Ho} and Yan Chen and Qinhui Zhang and Chiu, {Yat Ching} and Haosu Luo and Jiyan Dai and Chan, {Helen Lai Wa}",

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AU - Zhou, Dan

AU - Lam, Kwok Ho

AU - Chen, Yan

AU - Zhang, Qinhui

AU - Chiu, Yat Ching

AU - Luo, Haosu

AU - Dai, Jiyan

AU - Chan, Helen Lai Wa

PY - 2012/8/1

Y1 - 2012/8/1

N2 - In this work, lead-free 1-3 composites based on piezoelectric 0.947Na0.5Bi0.5TiO3-0.053BaTiO3(NBT-0.053BT) single crystal and epoxy are fabricated for ultrasonic transducer applications by a modified dice-and-fill method. Excellent properties for ultrasonic transducer applications have been achieved, such as high electromechanical coupling coefficient (kt= 73%), lower acoustic impedance (Z = 16 MRayl) and moderate dielectric constant. Based on this lead-free piezoelectric single crystal composite, single-element ultrasonic transducer and linear array have been fabricated and characterized. Both types of transducers exhibit similar performance with broad bandwidth of exceeding 100%. The promising results show that these lead-free composites have the potential to be used for high-performance ultrasonic transducers.

AB - In this work, lead-free 1-3 composites based on piezoelectric 0.947Na0.5Bi0.5TiO3-0.053BaTiO3(NBT-0.053BT) single crystal and epoxy are fabricated for ultrasonic transducer applications by a modified dice-and-fill method. Excellent properties for ultrasonic transducer applications have been achieved, such as high electromechanical coupling coefficient (kt= 73%), lower acoustic impedance (Z = 16 MRayl) and moderate dielectric constant. Based on this lead-free piezoelectric single crystal composite, single-element ultrasonic transducer and linear array have been fabricated and characterized. Both types of transducers exhibit similar performance with broad bandwidth of exceeding 100%. The promising results show that these lead-free composites have the potential to be used for high-performance ultrasonic transducers.

KW - 1-3 composite

KW - Lead-free

KW - NBT-BT single crystal

KW - Ultrasonic transducer

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JO - Sensors and Actuators, A: Physical

JF - Sensors and Actuators, A: Physical

ER -

Lead-free piezoelectric single crystal based 1-3 composites for ultrasonic transducer applications

Abstract

Keywords

ASJC Scopus subject areas

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