Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21133
Title: Change of material parameters of lead zirconate titanate rings after applying non-uniform mechanical stress
Authors: Xu, CH
Chan, HLW 
Liu, PCK
Keywords: Ceramics
Dielectrics
Elastic properties
Mechanical stress
Piezoelectric materials
Issue Date: 2004
Source: Materials letters, 2004, v. 58, no. 10, p. 1616-1619 How to cite?
Journal: Materials Letters 
Abstract: Lead zirconate titanate rings were subjected to different mechanical stress applied by bolt clamping. The piezoelectric and elastic coefficients, the relative permittivity and the electromechanical coupling factor of the compressed rings were evaluated from the impedance and phase spectra using a commercial package "Piezoelectric Resonance Analysis Program" (PRAP). The results show that the piezoelectric coefficient e33, elastic coefficient c33D and electromechanical coupling factor kt decreased, while the relative permittivity ε 33S/ε0 increased with the increase in mechanical stress. The changes of the material parameters of the compressed rings are understood from the movements of domain walls upon the application of different torques.
URI: http://hdl.handle.net/10397/21133
ISSN: 0167-577X
DOI: 10.1016/j.matlet.2003.10.038
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