Lead-free high performance Bi(Zn0.5Ti0.5)O3-modified BiFeO3-BaTiO3 piezoceramics

  • Gyung Hyun Ryu
  • , Ali Hussain
  • , Myang Hwan Lee
  • , Rizwan Ahmed Malik
  • , Tae Kwon Song
  • , Won Jeong Kim
  • , Myong Ho Kim

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

In this article, structure, dielectric, ferroelectric and piezoelectric properties of Bi rich Bi1.05(Zn0.5Ti0.5)O3-modified BiFeO3-BaTiO3 (BF-BT-xBZT) ceramics were investigated experimentally. Crystal structure, phase purity and microstructure were examined through X-ray diffractometry and scanning electron microscopy, respectively. The crystallographic results show the formation of single-phase solid solutions for all compositions except x = 10 mol%. The BF-BT modification through BZT instigates variation in grain size, enhancement in Curie temperature (TC) and field induced polarization and strain response. Large field induced strain of ∼0.24% at low driving field along with a small hysteresis of ∼38% was observed for 2 mol% BZT modified BF-BT ceramics. These investigated results signpost the potentiality of BF-BT-xBZT ceramics in high temperature piezoelectric device applications.

Original languageEnglish
Pages (from-to)4414-4421
Number of pages8
JournalJournal of the European Ceramic Society
Volume38
Issue number13
DOIs
StatePublished - Oct 2018
Externally publishedYes

Keywords

  • BiFeO-BaTiO ferroelectric
  • Field-induced strain
  • Lead-free
  • Piezoelectric

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