Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/70706
Title: A diagram of the structure evolution of pb(Zn1/3Nb2/3) o-3-9% pbTiO3 relaxor ferroelectric crystals with excellent piezoelectric properties
Authors: Zhou, H
Li, T 
Zhang, N
Mai, MF
Ye, M
Lin, P
Huang, CW
Zeng, XR
Huang, HT 
Ke, SM
Issue Date: 2017
Source: Crystals, May 2017, v. 7, no. 5, 130, p. 1-10
Abstract: Piezoelectric properties are of significant importance to medical ultrasound, actuators, sensors, and countless other device applications. The mechanism of piezoelectric properties can be deeply understood in light of structure evolutions. In this paper, we report a diagram of the structure evolutions of Pb(Zn1/3Nb2/3)(0.91)Ti0.09O3 (PZN-9PT) crystals with excellent piezoelectric properties among orthorhombic, tetragonal, and cubic phases, with a temperature increasing from room temperature to 220 degrees C. Through fitting the temperature-dependent XRD curves with Gauss and Lorenz functions, we obtained the evolutions of the content ratio of three kinds of phases ( orthorhombic, tetragonal and cubic) and the lattice parameters of the PZN-9PT system with the changes of temperature. The XRD fitting results together with Raman and dielectric spectra show that the phase transitions of PZN-9PT are a typical continuous evolution process. Additionally, resonance and anti-resonance spectra show the excellent piezoelectric properties of these crystals, which probably originate from the nano twin domains, as demonstrated by TEM images. Of particular attention is that the thickness electromechanical coupling factor k(t) is up to 72%.
Keywords: Pb(Zn1/3Nb2/3) O-3-9% PbTiO3
Relaxor ferroelectric crystals
Structure phase transition
Electromechanical coupling factor
Publisher: Molecular Diversity Preservation International (MDPI)
Journal: Crystals 
ISSN: 2073-4352
DOI: 10.3390/cryst7050130
Rights: © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The following publication Zhou, H., Li, T., Zhang, N., Mai, M. F., Ye, M., Lin, P., … Ke, S. M. (2017). A diagram of the structure evolution of pb(Zn1/3Nb2/3) o-3-9% pbTiO3 relaxor ferroelectric crystals with excellent piezoelectric properties. Crystals, 7(5), (Suppl. ), 130, - is available athttps://dx.doi.org/10.3390/cryst7050130
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