Time-dependent electromechanical response of 0.93(Na1/2Bi1/2) TiO3-0.07BaTiO(3) lead-free piezoceramic under constant electric field
Chen D, Ayrikyan A, Webber KG, Kamlah M (2017)
Publication Language: English
Publication Status: Published
Publication Type: Journal article
Publication year: 2017
Journal
Publisher: AMER INST PHYSICS
Book Volume: 121
Journal Issue: 11
DOI: 10.1063/1.4978704
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.
Authors with CRIS profile
Azatuhi Ayrikyan
Lehrstuhl für Glas und Keramik (WW3)
Kyle Grant Webber
Professur für Werkstoffwissenschaften (Funktionskeramik)
Involved external institutions
Germany (DE)How to cite
APA:
Chen, D., Ayrikyan, A., Webber, K.G., & 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://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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