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Uniaxial stress dependence of the piezoelectric properties of lead zirconate titanate ceramics

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4 Author(s)
Yang, G. ; Dept. of Phys., R. Mil. Coll. of Canada, Kingston, Ont., Canada ; Liu, S-F. ; Ren, W. ; Mukherjee, B.K.

Piezoelectric ceramics are often used under compressive stress. We have measured the dynamic value of the piezoelectric charge coefficient, d33, as a function of uniaxial stress in the poled direction. Results on two types of PZT ceramics manufactured by EDO Corporation are presented; in general, they show a nonlinear behaviour with an initial increase in d33 as the stress increases followed by a significant decrease. The time dependence of the measurement has also been investigated and these studies indicate that the stress induced extrinsic contributions take a finite time to appear and that, over longer time periods, the stress causes ageing

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Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on  (Volume:1 )

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