Effect of porosity on the ferroelectric and piezoelectric properties of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 piezoelectric ceramics

Emily W. Yap; Julia Glaum; Jette Oddershede; John E. Daniels

doi:10.1016/j.scriptamat.2017.10.022

Effect of porosity on the ferroelectric and piezoelectric properties of (Ba_0.85Ca_0.15)(Zr_0.1Ti_0.9)O₃ piezoelectric ceramics

Emily W. Yap, Julia Glaum, Jette Oddershede, John E. Daniels^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The ferroelectric and piezoelectric properties of (Ba_0.85Ca_0.15)(Zr_0.1Ti_0.9)O₃ (BCZT) ceramics were measured as a function of porosity. Porous BCZT ceramics were fabricated using the sacrificial fugitive technique. Two different pore morphologies were induced by adding polymeric microspheres and fibres as the pore-forming agents. Increasing porosity led to decreasing ferroelectric and piezoelectric properties due to a reduction of polarisable BCZT ceramic available. With the benefit of being a lead-free piezoelectric material, porous BCZT ceramics may be considered for acoustic impedance matching in actuator and sensor applications, and also as a functional component in biomedical applications.

Original language	English
Journal	Scripta Materialia
Volume	145
Pages (from-to)	122-125
Number of pages	4
ISSN	1359-6462
DOIs	https://doi.org/10.1016/j.scriptamat.2017.10.022
Publication status	Published - 2018

Keywords

Electroceramics
Finite element analysis
Piezoelectric ceramics
Porous material
Three-dimensional tomography

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title = "Effect of porosity on the ferroelectric and piezoelectric properties of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 piezoelectric ceramics",

abstract = "The ferroelectric and piezoelectric properties of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) ceramics were measured as a function of porosity. Porous BCZT ceramics were fabricated using the sacrificial fugitive technique. Two different pore morphologies were induced by adding polymeric microspheres and fibres as the pore-forming agents. Increasing porosity led to decreasing ferroelectric and piezoelectric properties due to a reduction of polarisable BCZT ceramic available. With the benefit of being a lead-free piezoelectric material, porous BCZT ceramics may be considered for acoustic impedance matching in actuator and sensor applications, and also as a functional component in biomedical applications.",

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AU - Yap, Emily W.

AU - Glaum, Julia

AU - Oddershede, Jette

AU - Daniels, John E.

PY - 2018

Y1 - 2018

N2 - The ferroelectric and piezoelectric properties of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) ceramics were measured as a function of porosity. Porous BCZT ceramics were fabricated using the sacrificial fugitive technique. Two different pore morphologies were induced by adding polymeric microspheres and fibres as the pore-forming agents. Increasing porosity led to decreasing ferroelectric and piezoelectric properties due to a reduction of polarisable BCZT ceramic available. With the benefit of being a lead-free piezoelectric material, porous BCZT ceramics may be considered for acoustic impedance matching in actuator and sensor applications, and also as a functional component in biomedical applications.

AB - The ferroelectric and piezoelectric properties of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) ceramics were measured as a function of porosity. Porous BCZT ceramics were fabricated using the sacrificial fugitive technique. Two different pore morphologies were induced by adding polymeric microspheres and fibres as the pore-forming agents. Increasing porosity led to decreasing ferroelectric and piezoelectric properties due to a reduction of polarisable BCZT ceramic available. With the benefit of being a lead-free piezoelectric material, porous BCZT ceramics may be considered for acoustic impedance matching in actuator and sensor applications, and also as a functional component in biomedical applications.

KW - Electroceramics

KW - Finite element analysis

KW - Piezoelectric ceramics

KW - Porous material

KW - Three-dimensional tomography

U2 - 10.1016/j.scriptamat.2017.10.022

DO - 10.1016/j.scriptamat.2017.10.022

M3 - Journal article

VL - 145

SP - 122

EP - 125

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

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