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

Yap, Emily; Glaum, Julia; Oddershede, Jette; Daniels, John E.
Peer reviewed, Journal article
Published version
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Yap (Locked)
URI
https://hdl.handle.net/11250/2675334
Date
2018
Metadata
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  • Institutt for materialteknologi [1604]
  • Publikasjoner fra CRIStin - NTNU [20842]
Original version
https://doi.org/10.1016/j.scriptamat.2017.10.022
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.
Publisher
Elsevier
Journal
Scripta Materialia

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