Piezoelectric Properties of (Bi0.5Na0.5)1-XBaxTiO3 Lead-Free Ferroelectric Ceramics

  • A. C. Iglesias-Jaime Department of Physics, Technologic University of Havana, Havana, Cuba
  • Tongqing Yang Functional Materials Research Laboratory, College for Materials Science and Engineering, Tongji University, Shanghai, China
  • A. Peláiz Barranco Physics Faculty, Havana University
  • J. D.S. Guerra Grupo de Ferroelétricos e Materiais Multifuncionais, Instituto de Física, Universidade Federal de Uberlandia, Uberlandia, Minas Gerais, Brazil

Abstract

Lead-based piezoelectric compounds are the most widely used in a wide applications range such as sensors and transducers. However, these materials are environmentally-aggressive, so these must be replaced by using lead-free compounds. This paper presents the study on the electromechanical behavior and the main piezoelectric parameters of five piezoelectric ceramic compositions of the (B­i0.5Na0.5)1-xBaxTiO3 family, where x = 8, 10, 12, 16, 18 at%. The samples have been prepared by using the standard solid-state reaction method and then polarized under an electric field of 2 kV/mm for a temperature lower than that of the phase’s transition temperature. Results revealed d33 values higher than 120 pC/N ​​for x = 8, 10, 12 at%, better than those for lead-based compounds. There were also obtained d33, d31 and g31 values higher than those reported in the literature for a large number of lead-free systems.

Published
Jul 14, 2022
How to Cite
IGLESIAS-JAIME, A. C. et al. Piezoelectric Properties of (Bi0.5Na0.5)1-XBaxTiO3 Lead-Free Ferroelectric Ceramics. Revista Cubana de Física, [S.l.], v. 39, n. 1, p. 33-36, july 2022. ISSN 2224-7939. Available at: <http://www.revistacubanadefisica.org/index.php/rcf/article/view/2022v39p033>. Date accessed: 28 sep. 2022.
Section
Original Articles