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Article
Auxetic behavior under electrical loads in an induced ferroelectric phase
Applied Physics Letters
  • Xiaoli Tan, Iowa State University
  • Wook Jo, Technische Universität Darmstadt
  • T. Granzow, Technische Universität Darmstadt
  • Joshua C. Frederick, Iowa State University
  • E. Aulbach, Technische Universität Darmstadt
  • J. Rodel, Technische Universität Darmstadt
Document Type
Article
Publication Date
1-30-2009
DOI
10.1063/1.3076109
Abstract

The longitudinal and transverse strains were measured as a function of applied electric fields in a bulk ceramic sample of Pb0.99Nb0.02[(Zr0.57Sn0.43)0.94Ti0.06]0.98O3 at room temperature. Instead of a transverse contraction, a transverse expansion was observed in the electric-field-induced ferroelectric phase after the antiferroelectric-to-ferroelectric phase transition. Therefore, an auxetic behavior was established in monolithic ferroelectric polycrystalline ceramics under electrical loads. The behavior is characterized by a negative strain ratio that is analogous to the Poisson’s ratio. The transverse expansion leads to a large hydrostatic piezoelectric coefficient dh, which suggests new applications of antiferroelectricceramics in piezoelectric devices.

Comments

The following article appeared in Applied Physics Letters 94 (2009): 042909 and may be found at http://dx.doi.org/10.1063/1.3076109.

Rights
Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Copyright Owner
American Institute of Physics
Language
en
Date Available
2013-11-21
File Format
application/pdf
Citation Information
Xiaoli Tan, Wook Jo, T. Granzow, Joshua C. Frederick, et al.. "Auxetic behavior under electrical loads in an induced ferroelectric phase" Applied Physics Letters Vol. 94 Iss. 4 (2009) p. 042909
Available at: http://works.bepress.com/xiaoli_tan/14/