Electric Polarization Characteristic and Equivalent Circuit of the Pb(Zr_0.95Ti_0.05)O₃ Nanoceramics

Abstract:

In this paper, the PZT nano-ceramics were prepared by an improved Sol-Gel method. This method was based on recording to A.S.Mischenko. TF Analyzer 2000 FE was used to measure the ferroelectric properties of the samples. The results show the change trends of the P-E hysteresis loops in different voltages, temperatures and frequencies. Impedance was tested by precision impedance analyzers 6500 series. With the use of the equivalent circuit to simulate the piezoelectric ceramic vibrator we can get a conclusion that in the 85 MHz-120 MHz the response of the sample can be represented with a RLC series resonant circuit. The resonant frequency of the sample is 97.12MHz, and the loss is very low. Compared with the general piezoelectric vibrator PZT 95/05 nano-ceramic is a low frequency capacitor with the capacitance tend to 0 F.

• Periodical: Advanced Materials Research (Volume 629)
• Pages: 309-313
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.629.309
• Online since: December 2012
• Authors: Yuan Yuan Chi, Chao Zhang, Ying Wang, Da Shu Yu
• Keywords: Equivalent Circuit, P-E Hysteresis Loop, Piezoelectric Vibrator, PZT

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