S. Zhang—contributing editor
Phase Transformation and Tunable Piezoelectric Properties of Lead-Free (Na0.52K0.48−xLix)(Nb1−x−ySbyTax)O3 System
Article first published online: 15 DEC 2008
© 2008 The American Ceramic Society
Journal of the American Ceramic Society
Volume 92, Issue 1, pages 283–285, January 2009
How to Cite
Zuo, R., Fu, J. and Lv, D. (2009), Phase Transformation and Tunable Piezoelectric Properties of Lead-Free (Na0.52K0.48−xLix)(Nb1−x−ySbyTax)O3 System. Journal of the American Ceramic Society, 92: 283–285. doi: 10.1111/j.1551-2916.2008.02871.x
This work was financially supported by HFUT RenCai Foundation (No. 103-035006) and a special Program for Excellence Selection “R&D of Novel Lead Free Piezoelectric Ceramics” (No. 103-035034). The Project was Sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry.
- Issue published online: 5 JAN 2009
- Article first published online: 15 DEC 2008
- Manuscript No. 25219. Received September 17, 2008; approved October 31, 2008.
Lead-free (Na0.52K0.48−x)(Nb1−x−ySby)O3-xLiTaO3 (NKNS–LT) piezoelectric ceramics have been fabricated by ordinary sintering. A special attention was paid to the composition design through which the dielectric and piezoelectric properties of the (Li, Ta, Sb) modified NKN systems were significantly promoted. A property spectrum was generated with a particular discussion on the relationship between the Sb content, the LT content, the polymorphic phase transition, and the electrical properties and their temperature stability. Excellent and tunable electrical properties of d33=242–400 pC/N, kp=36%–54%, , and Tc=230°–430°C demonstrate a tremendous potential of the compositions studied for device applications.