Microstructure and dielectric properties of PZN-PT-BT relaxor ferroelectric ceramics

Xiaoli Wang*, Zhengkui Xu, H. D. Chen

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

Paraelectric Ba(Zn1/3Nb2/3)O3 (BZN) is realized as an implicit component in Pb(Zn1/3Nb2/3)O3- PbTiO3-BaTiO3 (PZN-PT-BT), which decreases phase transition temperature and weakens dielectric properties. The dielectric behaviors under high electrical field have been investigated. In the broad temperature range of the diffuse phase transition, PZN-PT-BT ceramics show highly induced polarization. An unusual linear relation of the polarization with electrical field has been observed near the central portion of the hysteresis loops of some samples, which are both temperature and composition dependent. The observed ferroelectric properties may be understood using a model of PZN-based matrix containing ferroelectric PT and paraelectric BZN nano-phase regions.

Original languageEnglish
Pages (from-to)15-20
Number of pages6
JournalKey Engineering Materials
Volume228-229
StatePublished - 2 Dec 2002
EventAsian Ceramic Science for Electronics II Proceedings of the 2nd Asian Meeting of Electroceramics - Kawasaki, Japan
Duration: 1 Oct 20011 Oct 2001

Keywords

  • Dielectrics
  • Ferroelectric
  • Nano-Domains
  • Paraelectric
  • PZN-PT-BT
  • Relaxor

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