Investigation of nonstoichiometric Fe on the ferroelectric properties of BiFeO3-based piezoelectric ceramics
Xie L, Tan Z, Wu X, Chen Q, Xing J, Zhu J, Fan W (2021)
Publication Type: Journal article, Original article
Publication year: 2021
Journal
URI: https://www.sciencedirect.com/science/article/pii/S0022459621006599
DOI: 10.1016/j.jssc.2021.122614
Abstract
Enhanced comprehensive performances of piezoelectric and temperature stability are obtained in 0.725Bi1.05FexO3-0.275BaTiO3-0.3%MnO2 ceramics via tuning nonstoichiometric Fe content. The Fe content strongly affects the phase structure of ceramics, which possess rhombohedral-pseudocubic coexistence structure, boosting the high piezoelectricity in this system. The optimal comprehensive performances of ceramics are obtained at x = 0.98 with a relatively large piezoelectricity (d33 ∼158 pC/N) as well as a high Curie temperature (TC ∼523 °C). We found that the deficiency of Fe content gives rise to diffused phase boundary and oxygen vacancies, which induces strong thermal stability over a wide temperature range in the composition. This work discloses the Fe content play an important role in the crystal structure of BF-based materials. We expect that the investigation on nonstoinchiometry of Fe will lead an effective method to develop high-performance BiFeO3-based ceramics for lead-free electronic applications.
Authors with CRIS profile
Involved external institutions
China (CN)How to cite
APA:
Xie, L., Tan, Z., Wu, X., Chen, Q., Xing, J., Zhu, J., & Fan, W. (2021). Investigation of nonstoichiometric Fe on the ferroelectric properties of BiFeO3-based piezoelectric ceramics. Journal of Solid State Chemistry. https://doi.org/10.1016/j.jssc.2021.122614
MLA:
Xie, Lixu, et al. "Investigation of nonstoichiometric Fe on the ferroelectric properties of BiFeO3-based piezoelectric ceramics." Journal of Solid State Chemistry (2021).
BibTeX: Download