Paper Title:
Morphotropic Phase Boundary Study of the BNT-BKT Lead-Free Piezoelectric Ceramics
  Abstract

A lead-free piezoelectric ceramic binary system based on bismuth sodium titanate (Bi0.5Na0.5)TiO3 (BNT)-bismuth potassium titanate (Bi0.5K0.5)TiO3 (BKT) was synthesized by conventional mixed-oxide technique. The XRD analysis showed that the rhombohedral-tetragonal morphotropic phase boundary (MPB) of the Bi0.5 (Na1-xKx)0.5 TiO3 system was in the composition range of x = 0.16 ~ 0.20. In addition, the piezoelectric properties of this system were also investigated. It was indicated that the piezoelectric properties are better with the compositions near the rhombohedral phase within the MPB than the compositions near the tetragonal phase.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
1908-1910
DOI
10.4028/www.scientific.net/KEM.368-372.1908
Citation
W. Zhao, H. P. Zhou, Y. K. Yan, D. Liu, "Morphotropic Phase Boundary Study of the BNT-BKT Lead-Free Piezoelectric Ceramics", Key Engineering Materials, Vols. 368-372, pp. 1908-1910, 2008
Online since
February 2008
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$32.00
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