LOW TEMPERATURE FATIGUE BEHAVIOR OF PZT CERAMICS

ABSTRACT

Since superlattice reflections in PbZr_0.52Ti_0.48O₃ ceramics have been observed clearly at low temperature by means of electron diffraction [1, 2], antiphase boundaries(APBs) and 180°-antiphase boundaries(180°-APBs) are suspected to appear. And the appearance of APBs and 180°-APBs will influence the fatigue property of the ceramics. Then low temperature fatigue behaviors of PbZr₅₂Ti₄₈O₃ ceramics were investigated. The results suggest that the fatigue property were improved.

Keywords:

• Ceramics
• fatigue
• ferroelectrics
• antiphase boundaries

ACKNOWLEDGMENTS

The authors wish to thank Dr.P.Bao for helpful discussions. The work was supported by the National Nature Science Foundation of China (Grant No. 50171034, 90207027).