A synthetic model of electric fatigue for ferroelectric materials with ferroelectric and piezoelectric effects

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (17) : 220-225.

XUE Xiaomin1, ZHOU Jiangwu1, SUN Qing1, WU Xiaohong2

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Abstract

Ferroelectric materials are applied in many fields, such as, ultrasonic and sonar transducers etc.due to their distinct ferroelectric and piezoelectric properties.Their characteristic loops measured in experiments are generally nonlinear and hysteretic.These loops gradually become degenerate and asymmetric due to some inevitable reasons, especially, electric fatigue to increase difficulties to their force-electricity modeling, and limit their application in engineering.Here, a synthetic model of electric fatigue was proposed fully considering material fatigue phenomena due to cyclic electric field polarization and precisely describing ferroelectric and piezoelectric characteristic loops.Finally, experimental data was utilized to verify the proposed model.The results showed that the accuracy and adaptability of the proposed model are superior to those of the traditional ones, and it has good prospects for application.

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/ Ferroelectric materials, Hysteresis loops, Butterfly loops, Electric Fatigue, Synthetic modeling

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XUE Xiaomin1, ZHOU Jiangwu1, SUN Qing1, WU Xiaohong2. A synthetic model of electric fatigue for ferroelectric materials with ferroelectric and piezoelectric effects[J]. Journal of Vibration and Shock, 2019, 38(17): 220-225

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