Journal article


Time-dependent electromechanical response of 0.93(Na1/2Bi1/2) TiO3-0.07BaTiO(3) lead-free piezoceramic under constant electric field


Publication Details
Author(s): Chen D, Ayrikyan A, Webber K, Kamlah M
Publisher: AMER INST PHYSICS
Publication year: 2017
Volume: 121
Journal issue: 11
ISSN: 0021-8979
Language: English

Abstract

In this study, the time-dependent electromechanical response of lead-free piezoceramic 0.93(Na1/2Bi1/2) TiO3-0.07BaTiO(3) to the applied electrical field was investigated. Large creep behavior was observed in both the polarization and the strain response, which can be attributed to the transition from a nonergodic relaxor to a state with a long-range ferroelectric order. This transition under a constant electric loading is a gradual process with a cascade behavior, observed under electric fields ranging from 1.2 to 1.6 kV/mm. The critical electric field to trigger this cascade effect was found to be approximately 1.15 kV/mm. This phenomenon indicates that the electric fieldinduced state transition is similar to a "self-catalyzed" behavior that depends on both the magnitude of electric loading and the holding time. Following the creep experiment, the electromechanical behavior was characterized to determine the completeness of the relaxor-ferroelectric transition. Published by AIP Publishing.



How to cite
APA: Chen, D., Ayrikyan, A., Webber, K., & Kamlah, M. (2017). Time-dependent electromechanical response of 0.93(Na1/2Bi1/2) TiO3-0.07BaTiO(3) lead-free piezoceramic under constant electric field. Journal of Applied Physics, 121(11). https://dx.doi.org/10.1063/1.4978704

MLA: Chen, D., et al. "Time-dependent electromechanical response of 0.93(Na1/2Bi1/2) TiO3-0.07BaTiO(3) lead-free piezoceramic under constant electric field." Journal of Applied Physics 121.11 (2017).

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