S. Zhang—contributing editor
Bipolar and Unipolar Fatigue of Ferroelectric BNT-Based Lead-Free Piezoceramics
Article first published online: 29 SEP 2010
© 2010 The American Ceramic Society
Journal of the American Ceramic Society
Volume 94, Issue 2, pages 529–535, February 2011
How to Cite
Luo, Z., Glaum, J., Granzow, T., Jo, W., Dittmer, R., Hoffman, M. and Rödel, J. (2011), Bipolar and Unipolar Fatigue of Ferroelectric BNT-Based Lead-Free Piezoceramics. Journal of the American Ceramic Society, 94: 529–535. doi: 10.1111/j.1551-2916.2010.04101.x
This work is supported by the Australian Research Council (DP0988182) and the Deutsche Forschungsgemeinschaft (SFB595).
- Issue published online: 7 FEB 2011
- Article first published online: 29 SEP 2010
- Manuscript No. 27983. Received May 6, 2010; approved July 30, 2010.
The bipolar and unipolar fatigue behavior of the lead-free piezo- and ferroelectric 0.94Bi1/2Na1/2TiO3–0.06BaTiO3 (94BNT–6BT) was investigated. To obtain a complete profile of the fatigue behavior, both large-signal (polarization, strain) and small-signal (d33, ɛ33) properties were measured at room temperature. The results indicate that the material suffers a significant degradation in both large- and small-signal properties after cycling, with most of the fatigue occurring in the first 104 cycles of the fatigue test.