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Journal article

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

By Yap, Emily W.1; Glaum, Julia1; Oddershede, Jette2; Daniels, John E.1

From

University of New South Wales1

Department of Physics, Technical University of Denmark2

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.

Language: English
Year: 2018
Pages: 122-125
ISSN: 18728456 and 13596462
Types: Journal article
DOI: 10.1016/j.scriptamat.2017.10.022
ORCIDs: Oddershede, Jette
Keywords

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

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