Elastic, dielectric, and piezoelectric anomalies and Raman spectroscopy of 0.5Ba(Ti0.8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3
By Dragan Damjanovic, Alberto Biancoli, Leili Batooli, A. Vahabzadeh, J. Trodahl. 2012
169 citations recorded by the source corpus.
The solid solution 0.5Ba(Ti0.8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3 (BCZT) is a promising lead-free piezoelectric material with exceptionally high piezoelectric coefficients. The strong response is related to structural instabilities close to ambient temperature. We report here on temperature-induced anomalies in the dielectric, piezoelectric, and elastic coefficients and Raman spectroscopy of ceramic BCZT. The data indicate ferroelectric-ferroelectric structural phase transitions in this material in addition to those previously reported. An anomaly is also observed above the Curie temperature TC and is associated with the loss of polar structure that persists thirty degrees above TC.
Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/70168680f7b57337d549c8c704fb36ee6d533c11
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Citations in the corpus
- Recent Progress on BaTiO3-Based Piezoelectric Ceramics for Actuator Applications (2017, background): “And similar conclusions have been drawn from the temperature-dependence of elastic anomalies as well as the Rama spectrum [72,73].”
- Requirements for the transfer of lead-free piezoceramics into application (2018, background): “In addition to providing salient data for applications, the characterization of the elastic and anelastic properties of ferroelectrics can provide a wealth of information on the structural and electronic transitions [77,83], oxygen octahedral tilting [83], domain wall motion [84], defect mobility [8”