In Situ Transmission Electron Microscopy of Electric Field-Triggered Reversible Domain Formation in Bi-Based Lead-Free Piezoceramics

Jens Kling, Xiaoli Tan, Wook Jo, Hans-Joachim Kleebe, Hartmut Fuess, Jürgen Rödel

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A lead-free piezoelectric 0.91(Bi1/2Na1/2)TiO 3-0.06BaTiO3-0.03(K0.5Na0.5)NbO 3 ceramic with high strain was examined in situ under an applied electric field using the transmission electron microscope. No domain structure is observed without an electric field, but an alternating electric field leads to the reversible formation of a lamellar domain structure. Correlations to polarization and strain hysteresis loop measurements indicate an electric field-induced phase transition from a nonpolar to a ferroelectric state and vice versa.
Original languageEnglish
JournalJournal of the American Ceramic Society
Volume93
Issue number9
Pages (from-to)2452-2455
ISSN0002-7820
DOIs
Publication statusPublished - 2010
Externally publishedYes

Keywords

  • Crystals
  • Hysteresis
  • In situ processing
  • Phase transitions
  • Sodium
  • Transmission electron microscopy
  • Electric fields

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