Influence of Different Dopants on the Piezoelectric Properties of the Na1/2Bi1/2TiO3-BaTiO3- Lead-Free Ceramics
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.
Wei Pan and Jianghong Gong
W. Zhao, H. P. Zhou, Y. K. Yan, D. Liu, S. S. Liu, "Influence of Different Dopants on the Piezoelectric Properties of the Na1/2Bi1/2TiO3-BaTiO3- Lead-Free Ceramics", Key Engineering Materials, Vols. 336-338, pp. 105-108, 2007