S. Priya—contributing editor
Low-Temperature Sintering and Piezoelectric Properties of (Na0.5K0.5)NbO3 Lead-Free Piezoelectric Ceramics
Article first published online: 6 OCT 2009
© 2009 The American Ceramic Society
Journal of the American Ceramic Society
Volume 93, Issue 1, pages 36–39, January 2010
How to Cite
Park, H.-Y., Seo, I.-T., Choi, J.-H., Nahm, S. and Lee, H.-G. (2010), Low-Temperature Sintering and Piezoelectric Properties of (Na0.5K0.5)NbO3 Lead-Free Piezoelectric Ceramics. Journal of the American Ceramic Society, 93: 36–39. doi: 10.1111/j.1551-2916.2009.03359.x
This research was supported by a grant from the Center for Advanced Materials Processing (CAMP) of the 21st Century Frontier R&D Program funded by the Ministry of Knowledge and Economy (MKE) of the Korea.
- Issue published online: 21 DEC 2009
- Article first published online: 6 OCT 2009
- Manuscript No. 26402. Received August 15, 2009; approved August 19, 2009.
(Na0.5K0.5)NbO3 (NKN) ceramic with 1.5 mol% CuO added (NKNC) was well sintered even at a low temperature of 900°C with the addition of ZnO. Most of the ZnO reacted with the CuO and formed the liquid phase that assisted the densification of the specimens at 900°C. A few Zn2+ ions entered the matrix of the specimens and increased the coercive field (Ec) and Qm values of the specimens. High-piezoelectric properties of kp=0.37, Qm=755, and ɛ3T/ɛ0=327 were obtained from the NKNC ceramics containing 1.0 mol% ZnO sintered at 900°C for 2 h.