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Title: Piezoelectric coefficients of PMN-0.33PT single crystals
Authors: Cheng, KC
Chan, HLW 
Choy, CL 
Yin, Q
Luo, H
Yin, Z
Issue Date: 2001
Source: IEEE ISAF 2000 : proceedings of the 2000 12th IEEE International Symposium on Applications of Ferroelectrics, Honolulu, Hawaii, U.S.A, July 21-August 2, 2000, p. 533-536
Abstract: Lead magnesium niobate doped with 33 mol% lead titanate (PMN-0.33PT) single crystals have high piezoelectric coefficients (d₃₃ > 2000 pC/N) and thus have good potential to be used as sensors, actuators and transducers for medical ultrasound. PMN-0.33PT crystals of diameter 30 mm and length 40 mm long have been grown. A sample plate with its normal along the [001] axis was cut from the PMN-PT crystal and was poled along the thickness direction. A sinusoidal voltage was applied across the surfaces of the plate and an interferometer was used to measure the induced displacement in the thickness direction to give the piezoelectric coefficient d₃₃. The hydrostatic piezoelectric coefficient d[sub h] was also measured and the d₃₁ coefficient was calculated by d₃₁= (d[sub h]-d₃₃)/2.
Keywords: Piezoelectric coefficients
Lead magnesium niobate
PMN-PT crystal
Medical ultrasound
Publisher: IEEE
ISBN: 0-7803-5940-2
Rights: © 2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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