Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jeurceramsoc.2011.11.003
Title: Composition and poling condition-induced electrical behavior of (Ba 0.85Ca 0.15)(Ti 1-xZr x)O 3 lead-free piezoelectric ceramics
Authors: Wu, J.
Xiao, D.
Wu, W.
Chen, Q.
Zhu, J.
Yang, Z.
Wang, J. 
Keywords: Lead-free ceramics
Piezoelectric properties
Issue Date: Apr-2012
Citation: Wu, J., Xiao, D., Wu, W., Chen, Q., Zhu, J., Yang, Z., Wang, J. (2012-04). Composition and poling condition-induced electrical behavior of (Ba 0.85Ca 0.15)(Ti 1-xZr x)O 3 lead-free piezoelectric ceramics. Journal of the European Ceramic Society 32 (4) : 891-898. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jeurceramsoc.2011.11.003
Abstract: Lead-free (Ba 0.85Ca 0.15)(Ti 1-xZr x)O 3 (BCTZ) piezoelectric ceramics were fabricated by normal sintering in air atmosphere. BCTZ ceramics with x=0.10 possess a coexistence of tetragonal and rhombohedral phases at ∼40°C. The Curie temperature of BCTZ ceramics decreases with increasing the Zr content. Piezoelectric properties of BCTZ ceramics are dependent on the poling conditions (i.e., the poling temperature and the poling electric field), and the underlying physical mechanism is illuminated by the phase angle. The BCTZ (x=0.10) ceramic, which locates at the existence of two phases and is poled at E∼4.0kV/mm and T p∼40°C, exhibits an optimum electrical behavior at a room temperature of ∼20°C: d 33∼423pC/N, k p∼51.2%, 2P r∼18.86μC/cm 2, 2E c∼0.47kV/mm, e{open} r∼2892, and tanδ∼1.53%. © 2011 Elsevier Ltd.
Source Title: Journal of the European Ceramic Society
URI: http://scholarbank.nus.edu.sg/handle/10635/86220
ISSN: 09552219
DOI: 10.1016/j.jeurceramsoc.2011.11.003
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