L. An—contributing editor
Low-Temperature Sintering of CuO-Doped 0.94(K0.48Na0.535)NbO3–0.06LiNbO3 Lead-Free Piezoelectric Ceramics
Article first published online: 16 NOV 2010
© 2010 The American Ceramic Society
Journal of the American Ceramic Society
Volume 93, Issue 12, pages 4018–4021, December 2010
How to Cite
Huang, R., Zhao, Y., Zhang, X., Zhao, Y., Liu, R. and Zhou, H. (2010), Low-Temperature Sintering of CuO-Doped 0.94(K0.48Na0.535)NbO3–0.06LiNbO3 Lead-Free Piezoelectric Ceramics. Journal of the American Ceramic Society, 93: 4018–4021. doi: 10.1111/j.1551-2916.2010.04227.x
This work was supported by National Natural Science Foundation of China.
- Issue published online: 1 DEC 2010
- Article first published online: 16 NOV 2010
- Manuscript No. 27946. Received May 1 2010; approved October 6 2010.
Lead-free 0.94(K0.48Na0.535)NbO3–0.06LiNbO3–xmol%CuO ceramics were synthesized by conventional ceramics processes. The doping of CuO can decrease the sintering temperature to 890°C and effectively promote the densification of 0.94(K0.48Na0.535)NbO3–0.06LiNbO3 ceramics. X-ray diffraction result reveals that doping of CuO induces lattice distortion. Homogeneous grain growth is observed, due to the presence of liquid phase that resulted from the addition of CuO. The ceramics sintered at 890°C show fairly good properties with the planar electromechanical coupling factor kp=34.8%, piezoelectric constant d33=157.5 pC/N, dielectric constant ɛ33T/ɛ0=391, and mechanical quality factor Qm=173.5.