Influence of Different Dopants on the Piezoelectric Properties of the Na_1/2Bi_1/2TiO₃-BaTiO₃- Lead-Free Ceramics

Abstract:

Lead-free Na1/2Bi1/2TiO3-6BaTiO3 (BNT-6BT) ceramics with different dopants were prepared by a conventional ceramic fabrication technique. The influence of doping CeO2, La2O3, Nb2O5 and Co2O3 on the structure was studied, and the mechanism of soft and hard additives with A-site or B-site substitute changing the piezoelectric properties was discussed. It was found that the rhombohedral-tetragonal morphotropic phase boundary (MPB) of the Na1/2Bi1/2TiO3-6BaTiO3 was not changed obviously.

• Periodical: Key Engineering Materials (Volumes 336-338)
• Pages: 105-108
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.336-338.105
• Online since: April 2007
• Authors: Wei Zhao, He Ping Zhou, Yong Ke Yan, Dan Liu, Shan Shan Liu
• Keywords: MPB, Na_1/2Bi_1/2TiO₃-BaTiO₃, Piezoelectric

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