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*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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.
Original languageEnglish
JournalScripta Materialia
Volume145
Pages (from-to)122-125
Number of pages4
ISSN1359-6462
DOIs
Publication statusPublished - 2018

Keywords

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

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