Effect of the piezoelectric ceramic filler dielectric constant on the piezoelectric properties of PZT-epoxy composites

Journal Article (2017)
Author(s)

Jibran Khaliq (TU Delft - Novel Aerospace Materials)

Daniella Bayle Deutz (TU Delft - Novel Aerospace Materials)

Jesus Alfonso Caraveo Frescas (SABIC Corporate)

Peter Vollenberg (SABIC Corporate)

Theo Hoeks (SABIC Corporate)

Sybrand van der Zwaag (TU Delft - Novel Aerospace Materials)

Pim Groen (TU Delft - Novel Aerospace Materials, TNO)

DOI related publication
https://doi.org/10.1016/j.ceramint.2016.11.108 Final published version
More Info
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Publication Year
2017
Language
English
Journal title
Ceramics International
Issue number
2
Volume number
43
Pages (from-to)
2774-2779
Downloads counter
149

Abstract

Piezoelectric composites made from soft and hard lead zirconium titanate (PZT) particles as filler and an epoxy as the matrix were prepared by dielectrophoresis and studied for their piezoelectric properties. It was found that the dielectric constant of the piezoelectric filler plays a significant role in determining the final piezoelectric properties of the composites. Composites with lower dielectric constant for the PZT filler material showed better piezoelectric properties compared to the composites with high dielectric constant filler. This can be ascribed to a more efficient poling of the piezoelectric filler particles. The aging behaviour of these composites was compared to that reported for monolithic ceramics.