Welcome to Journal of Synthetic Crystals! Today is Share:

JOURNAL OF SYNTHETIC CRYSTALS ›› 2022, Vol. 51 ›› Issue (9-10): 1794-1799.

• Research Articles • Previous Articles    

Influence of Poling Methods on the Properties of PZT-4 Piezoelectric Ceramics

HU Yudong1,2, WANG Yuequn3, KONG Shuyan1, ZHANG Wenjie1, YANG Xiaoming1, WANG Zujian1, SU Rongbing1, LONG Xifa1,2, HE Chao1,2   

  1. 1. Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou 350002, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. China State Shipbuilding Corporation 715 Research Institute, Hangzhou 310023, China
  • Received:2022-08-18 Online:2022-10-15 Published:2022-11-02

Abstract: Pb(Zr1-xTix)O3(PZT) piezoelectric ceramics have been used extensively due to their comprehensive performance. Compared with direct current poling (DCP) and alternating current poling (ACP) methods, the combining DCP and ACP method can further improve the piezoelectric properties of relaxor-based ferroelectric single crystals. Here, the dielectric and piezoelectric properties of DCP, ACP, and ACP+DCP PZT-4 piezoelectric ceramics. The optimal poling conditions of DCP, ACP, and ACP+DCP were studied. The d33 of ACP+DCP PZT-4 piezoelectric ceramics reported in this paper is 350 pC/N, which is 15% and 9% higher than that of DCP (305 pC/N) and ACP (320 pC/N) samples. The strain value under electric field of the ACP PZT-4 ceramic (0.08%) is higher than that of the DCP sample (0.05%), indicating that ACP can effectively improve the strain value of PZT-4 ceramics. However, the increased hysteresis of the strain curve for ACP sample is not conducive to application. The effect of ACP on hard PZT piezoelectric ceramics needs to be further explored.

Key words: PZT, alternating current poling, piezoelectric ceramics, piezoelectric property, relaxation ferroelectric single crystal

CLC Number: