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- Title
Phase Transformation and Tunable Piezoelectric Properties of Lead-Free (Na<sub>0.52</sub>K<sub>0.48− x</sub>Li<sub> x</sub>)(Nb<sub>1− x− y</sub>Sb<sub> y</sub>Ta<sub> x</sub>)O<sub>3</sub> System.
- Authors
Ruzhong Zuo; Jian Fu; Danya Lv
- Abstract
Lead-free (Na0.52K0.48− x)(Nb1− x− ySb y)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.
- Subjects
ELECTROMECHANICAL devices -- Design &; construction; PIEZOELECTRIC ceramics; LEAD-free electronics manufacturing processes; SPECTRUM analysis; PIEZOELECTRICITY; CURIE temperature; TRANSITION metal alloys; SINTERING
- Publication
Journal of the American Ceramic Society, 2009, Vol 92, Issue 1, p283
- ISSN
0002-7820
- Publication type
Article
- DOI
10.1111/j.1551-2916.2008.02871.x