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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Dielectric and piezoelectric nonlinear properties of slightly textured lead barium niobate ceramics

Full text
Author(s):
Ochoa, Diego A. [1] ; Casals, Jorge A. [1, 2] ; Venet, Michel [3] ; M'Peko, Jean-Claude [4] ; Garcia, Jose E. [1]
Total Authors: 5
Affiliation:
[1] Univ Politecn Catalunya BarcelonaTech, Dept Phys, Barcelona 08034 - Spain
[2] Miami Dade Coll, Dept Nat Sci Hlth & Wellness, Wolfson Campus, Miami, FL 33132 - USA
[3] Univ Fed Sao Carlos, Dept Phys, BR-13565670 Sao Carlos, SP - Brazil
[4] Univ Sao Paulo, Sao Carlos Inst Phys, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Journal of Applied Physics; v. 125, n. 2 JAN 14 2019.
Web of Science Citations: 0
Abstract

Dielectric and piezoelectric responses of slightly textured, lead barium niobate ceramics are studied. The designed morphotropic phase boundary composition (Pb(0.63)Ba(0.37)Nb2O(6)) shows considerable nonlinear dielectric and piezoelectric responses. While these nonlinear behaviors lead to significant instabilities of the functional properties, interesting features are revealed as a consequence of the texturing effect in the composition studied. An improved dielectric performance and a lower nonlinear piezoelectric response are observed when the electric field is applied to the sample in the forging direction. The results are quantitatively discussed in the framework of the Preisach and Rayleigh models. In this context, a decrease in the nonlinear response can be associated with a lower grain size related to the texture. The results of this work show that texturing is an effective route for controlling the undesirable nonlinear behavior of piezoceramics with tetragonal tungsten bronze structure. Published under license by AIP Publishing. (AU)

FAPESP's process: 17/17872-1 - New lead free magnetoelectric composites with high performance
Grantee:Michel Venet Zambrano
Support Opportunities: Scholarships abroad - Research
FAPESP's process: 13/00134-7 - Obtaining and improvement of properties of lead free magnetoelectric composites
Grantee:Michel Venet Zambrano
Support Opportunities: Regular Research Grants