Document Type
Article
Publication Date
1-30-2009
Journal or Book Title
Applied Physics Letters
Volume
94
Issue
4
First Page
042909
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.
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
Copyright Date
2009
Language
en
File Format
application/pdf
Recommended Citation
Tan, Xiaoli; Jo, Wook; Granzow, T.; Frederick, Joshua C.; Aulbach, E.; and Rodel, J., "Auxetic behavior under electrical loads in an induced ferroelectric phase" (2009). Materials Science and Engineering Publications. 16.
https://lib.dr.iastate.edu/mse_pubs/16
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.