Enhanced Electromechanical properties of ferroelectric Bi1/2Na1/2TiO3 -7BaTiO3/relaxorBi1/2Na1/2TiO3 -25SrTiO3composites

Hakimeh Wakily*, Jurij Koruza, Azatuhi Ayrikyan, Kyle Webber

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

Abstract

Ceramic-ceramic composites are an established approach to tuning properties of piezoelectric materials [1], [2]. The aim of this work is the investigation of the ferroelectric properties of a composite of ergodic relaxor BNT-25ST (matrix) and non-ergodic relaxor BNT-7BT (seed), in the hopes that such a composite will provide enhancement of unipolar strain, while minimizing the hysteresis behaviour, two parameters important for actuator applications. Our results show that the electromechanical behavior of layered and mixed composites as a function of composition parallel each other, however for both unipolar and bipolar fields, the maximum polarisation and strain is obtained with mixed composites. Maximum unipolar strain enhancement was observed in the 10% mixed composite and it is predicted that higher enhancement could be obtained with an even lower amount of seed.

Original languageEnglish
Title of host publication2016 Joint IEEE International Symposium on the Applications of Ferroelectrics, European Conference on Application of Polar Dielectrics, and Piezoelectric Force Microscopy Workshop, ISAF/ECAPD/PFM 2016
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Electronic)9781509018710
DOIs
Publication statusPublished - 27 Sep 2016
Externally publishedYes
Event2016 Joint IEEE International Symposium on the Applications of Ferroelectrics, European Conference on Application of Polar Dielectrics, and Piezoelectric Force Microscopy Workshop, ISAF/ECAPD/PFM 2016 - Darmstadt, Germany
Duration: 21 Aug 201625 Aug 2016

Publication series

Name2016 Joint IEEE International Symposium on the Applications of Ferroelectrics, European Conference on Application of Polar Dielectrics, and Piezoelectric Force Microscopy Workshop, ISAF/ECAPD/PFM 2016

Conference

Conference2016 Joint IEEE International Symposium on the Applications of Ferroelectrics, European Conference on Application of Polar Dielectrics, and Piezoelectric Force Microscopy Workshop, ISAF/ECAPD/PFM 2016
Country/TerritoryGermany
CityDarmstadt
Period21/08/1625/08/16

Keywords

  • composite
  • electromechanic
  • ferroelectric
  • relaxor

ASJC Scopus subject areas

  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Enhanced Electromechanical properties of ferroelectric Bi1/2Na1/2TiO3 -7BaTiO3/relaxorBi1/2Na1/2TiO3 -25SrTiO3composites'. Together they form a unique fingerprint.

Cite this