N. Bassiri-Gharb—contributing editor
In Situ Transmission Electron Microscopy of Electric Field-Triggered Reversible Domain Formation in Bi-Based Lead-Free Piezoceramics
Article first published online: 2 APR 2010
© 2010 The American Ceramic Society
Journal of the American Ceramic Society
Volume 93, Issue 9, pages 2452–2455, September 2010
How to Cite
Kling, J., Tan, X., Jo, W., Kleebe, H.-J., Fuess, H. and Rödel, J. (2010), In Situ Transmission Electron Microscopy of Electric Field-Triggered Reversible Domain Formation in Bi-Based Lead-Free Piezoceramics. Journal of the American Ceramic Society, 93: 2452–2455. doi: 10.1111/j.1551-2916.2010.03778.x
Supported by the Deutsche Forschungsgemeinschaft (DFG), Sonderforschungsbereich 595 “Electrical Fatigue in Functional Materials”.
- Issue published online: 2 APR 2010
- Article first published online: 2 APR 2010
- Manuscript No. 26824. Received September 14, 2009; approved March 11, 2010.
A lead-free piezoelectric 0.91(Bi1/2Na1/2)TiO3–0.06BaTiO3–0.03(K0.5Na0.5)NbO3 ceramic with high strain was examined in situ under an applied electric field using the transmission electron microscope. No domain structure is observed without an electric field, but an alternating electric field leads to the reversible formation of a lamellar domain structure. Correlations to polarization and strain hysteresis loop measurements indicate an electric field-induced phase transition from a nonpolar to a ferroelectric state and vice versa.