Chin. Phys. Lett.  2011, Vol. 28 Issue (8): 088301    DOI: 10.1088/0256-307X/28/8/088301
CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
Modeling of PZT Ferroelectric Ceramic Depolarization Driven by Shock Stress
LAN Chao-Hui**, PENG Yu-Fei LONG Ji-Dong, WANG Qiang, WANG Wen-Dou
Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900
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LAN Chao-Hui, PENG Yu-Fei LONG Ji-Dong, WANG Qiang et al  2011 Chin. Phys. Lett. 28 088301
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Abstract Shock-induced phase transition of ferroelectric ceramic PZT 95/5 causes elastic stiffening and depolarization, releasing stored electrostatic energy into the load circuit. We develop a model to describe the response of the PZT ferroelectric ceramic and implement it into simulation codes. The model is based on the phenomenological theory of phase transition dynamics and takes into account the effects of the self-generated intensive electrical field and stress. Connected with the discharge model and external circuit, the whole transient process of PZT ceramic depoling can be investigated. The results show the finite transition velocity of the ferroelectric phase and the double wave structure caused by phase transition. Simulated currents are compared with the results from experiments with shock pressures varying from 0.4 to 2.8 GPa.
Keywords: 83.50.Tq      77.80.-e     
Received: 28 December 2010      Published: 28 July 2011
PACS:  83.50.Tq  
  77.80.-e (Ferroelectricity and antiferroelectricity)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/28/8/088301       OR      https://cpl.iphy.ac.cn/Y2011/V28/I8/088301
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LAN Chao-Hui
PENG Yu-Fei LONG Ji-Dong
WANG Qiang
WANG Wen-Dou
[1] Setchell R E, Montgomery S T, Chhabildas L C and Furnish M D 2000 Shock Compression of Condensed Matter 1999 (New York: Plenum Press)
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[6] Montgomery S T 1986 Shock Waves in Condensed Matter 1985 (New York: Plenum Press)
[7] Dai Z H, Xu Z and Yao X 2008 Appl. Phys. Lett. 92 072904
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