Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5458535 | Journal of Alloys and Compounds | 2018 | 7 Pages |
Abstract
In this work, we simultaneously obtained a large d33 and high TC in a lead-free piezoelectric system of (1-x)K0.5Na0.5NbO3-xBi0.5Na0.5Zr0.85Sn0.15O3 [(1-x)KNN-xBNZS]. This lead-free piezoelectric system was synthesized by conventional solid-state method. We investigated the microstructure and electrical properties of this system. The rhombohedral-tetragonal (R-T) phase coexistence is demonstrated in the ceramics with 0.05 â¤Â x â¤Â 0.06. Owing to the R-T phase coexistence as well as the enhancement of ferroelectric and dielectric properties, the ceramics with x = 0.05 showed a large d33 of â¼350 pC/N together with a high TC of â¼315 °C, thereby illustrating that it is an effective way to obtain both large d33 and high TC in KNN-based ceramics. It is believed that such a ceramic system with large d33 and high TC is one of the promising candidates for piezoelectric devices.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Qian Gou, Jianguo Zhu, Jiagang Wu, Fenglian Li, Laiming Jiang, Dingquan Xiao,