Shockwave induced resistivity decreasing in PZT 95/5-2Nb ferroelectric ceramics
National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, P.O. Box 919-105, Mianyang 621900, P.R. China
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Revised: 22 November 2016
Accepted: 23 November 2016
Published online: 9 January 2017
This paper focused on the resistivity variation of PZT 95/5-2Nb ferroelectric ceramics under shock compression. First, release current decreasing which is a sign of PZT 95/5-2Nb ceramic resistivity decreasing has been observed by a reasonable sample size design in shock-compact experiment. A depoling current model considering PZT 95/5-2Nb ceramic resistivity decreasing has been obtained. Experiment results analyzed with the model indicate that the resistivity of PZT 95/5-2Nb ceramics reduces to the order of 100 Ω m with applied shock stresses range from 2.5 to 3 GPa.
© EDP Sciences, 2016