Morphotropic phase boundary in the Pb-Free (1 - X)BiTi3/8Fe2/8Mg3/8O3-xCaTiO3 System: Tetragonal polarization and enhanced electromechanical properties

Pranab Mandal, Alicia Manjõn-Sanz, Alex J. Corkett, Tim P. Comyn, Karl Dawson, Timothy Stevenson, James Bennett, Leonard F. Henrichs, Andrew J. Bell, Eiji Nishibori, Masaki Takata, Marco Zanella, Michelle R. Dolgos, Umut Adem, Xinming Wan, Michael J. Pitcher, Simon Romani, T. Thao Tran, P. Shiv Halasyamani, John B. ClaridgeMatthew J. Rosseinsky

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Lead-free bismuth-based perovskite oxides with polarization directed along the [001]p primitive perovskite unit cell edge, analogous to tetragonal PbTiO3, are synthesized at ambient pressure. Enhanced piezoelectric properties, large polarizations, and high depolarization temperatures are observed in the wide morphotropic phase boundary region formed with a rhombohedral phase, with up to 92.5% Bi on the perovskite A site.

Original languageEnglish
Pages (from-to)2883-2889
Number of pages7
JournalAdvanced Materials
Volume27
Issue number18
DOIs
Publication statusPublished - 2015 May 13
Externally publishedYes

Keywords

  • Pb-free
  • ferroelectric
  • morphotropic phase boundaries
  • perovskites
  • tetragonal

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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