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Article
Highly Textured BaTiO₃ via Templated Grain Growth and Resulting Polarization Reversal Dynamics
Journal of the American Ceramic Society
  • William Meier
  • Kelsey Elizabeth Meyer
  • Dorina F. Sava Gallis
  • Mia Angelica Blea-Kirby
  • Joshua Roth
  • Daniel Felman
  • Time Breuer
  • Gary J. Denison
  • Fred J. Zutavern
  • Wayne Huebner, Missouri University of Science and Technology
  • Geoff L. Brennecka
Abstract

Samples of bulk textured polycrystalline BaTiO3 ceramics were fabricated using a templated grain growth (TGG) approach in order to investigate effects of polycrystallinity and texture related to ferroelectric domain reversal under high‐power drive conditions. Barium titanate platelets were formed via two‐step topochemical conversion of bismuth titanate platelets grown via molten salt synthesis, then aligned via tape casting within a matrix of fine BaTiO3 powder. The coarse‐grained parts showed a high degree of crystallographic texture after sintering. Combined with ceramics of similar density and polycrystallinity, but random orientation and commercial single‐crystal specimens, this sample set enabled direct isolation of crystallographic texture and polycrystallinity as the primary variables for high‐power polarization reversal studies. These studies have also demonstrated a link between grain size and polarization reversal time that strongly suggests that grain boundaries serve effectively as nucleation sites during the ferroelectric switching process.

Department(s)
Materials Science and Engineering
Keywords and Phrases
  • Crystallographic textures,
  • Ferroelectric domains,
  • Ferroelectric switching,
  • Investigate effects,
  • Molten salt synthesis,
  • Polarization reversals,
  • Random orientations,
  • Templated grain growth
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2016 American Ceramic Society, All rights reserved.
Publication Date
3-1-2016
Publication Date
01 Mar 2016
Disciplines
Citation Information
William Meier, Kelsey Elizabeth Meyer, Dorina F. Sava Gallis, Mia Angelica Blea-Kirby, et al.. "Highly Textured BaTiO₃ via Templated Grain Growth and Resulting Polarization Reversal Dynamics" Journal of the American Ceramic Society Vol. 99 Iss. 3 (2016) p. 922 - 929 ISSN: 0002-7820; 1551-2916
Available at: http://works.bepress.com/wayne-huebner/84/