BROWSE

Related Researcher

Author

Jo, Wook
Sustainable Functional Ceramics Lab
Research Interests
  • Lead-free piezoceramics, ultra - low temperature sintering, ferroelectrics, relaxor ferroelectrics, 2D materials, magnetoelectric materials, multiferroics

ITEM VIEW & DOWNLOAD

Relationship between electromechanical properties and phase diagram in the Ba(Zr0.2Ti0.8)O3-x (Ba0.7Ca 0.3)TiO3 lead-free piezoceramic

Cited 10 times inthomson ciCited 0 times inthomson ci
Title
Relationship between electromechanical properties and phase diagram in the Ba(Zr0.2Ti0.8)O3-x (Ba0.7Ca 0.3)TiO3 lead-free piezoceramic
Author
Acosta, MatiasNovak, NikolaJo, WookRodel, Jurgen
Keywords
Electroceramic; Ferroelectric; Lead-free piezoceramics; Perovskites; Piezoelectric
Issue Date
201411
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ACTA MATERIALIA, v.80, no., pp.48 - 55
Abstract
The Ba(Zr0.2Ti0.8)O3-x(Ba 0.7Ca0.3)TiO3 system was synthesized in a wide compositional range in order to study the relationship between its phase diagram and electromechanical properties. Phase transitions were marked using peaks in temperature-dependent permittivity, providing up to three transitions from the rhombohedral phase to an orthorhombic, tetragonal and finally cubic phase, which meet in a region that is termed the phase convergence region in this work. In situ small and large signal electromechanical properties were studied as a function of temperature with specific emphasis on these transitions. A small signal piezoelectric coefficient, d33, presents maximized values at the transition from the orthorhombic to the tetragonal phase, while a large signal piezoelectric coefficient, d33*, does so at both rhombohedral to orthorhombic and to tetragonal phase transitions. Maximum polarization P max was the only quantity determined that had a clear maximum at the phase convergence region.
URI
Go to Link
DOI
http://dx.doi.org/10.1016/j.actamat.2014.07.058
ISSN
1359-6454
Appears in Collections:
MSE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU