Phase transformation induced by electric field and mechanical stress in Mn-doped (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3 ceramics

Journal article
(Original article)


Publication Details

Author(s): Ehara Y, Novak N, Ayrikyan A, Geiger P, Webber K
Journal: Journal of Applied Physics
Publisher: AMER INST PHYSICS
Publication year: 2016
Volume: 120
Journal issue: 17
ISSN: 0021-8979
Language: English


Abstract


Electric-field-and stress-induced phase transformations were investigated in polycrystalline 0.5 mol. % Mn-doped (1-x)(Bi1/2Na1/2)TiO3-x(Bi1/2K1/2)TiO3 (x = 0.1, 0.2). To characterize the effect of electric field and stress on the stability of the ferroelectric and relaxor states, polarization- and current density-electric field curves, as well as the stress-strain response as a function of temperature were characterized. Analogous to the observed electrical behavior, the macroscopic mechanical constitutive behavior showed a closed hysteresis at elevated temperatures, indicating a reversible stress-induced relaxor-to-ferroelectric transformation. The electrical and mechanical measurements were used to construct electric field-temperature and stress-temperature phase diagrams, which show similar characteristics. These data show that a mechanical compressive stress, similarly to an electric field, can induce long-range ferroelectric order in a relaxor ferroelectric. Published by AIP Publishing.



FAU Authors / FAU Editors

Ayrikyan, Azatuhi
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Geiger, Philipp
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Webber, Kyle Prof.
Professur für Werkstoffwissenschaften (Funktionskeramik)


How to cite

APA:
Ehara, Y., Novak, N., Ayrikyan, A., Geiger, P., & Webber, K. (2016). Phase transformation induced by electric field and mechanical stress in Mn-doped (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3 ceramics. Journal of Applied Physics, 120(17). https://dx.doi.org/10.1063/1.4966614

MLA:
Ehara, Yoshitaka, et al. "Phase transformation induced by electric field and mechanical stress in Mn-doped (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3 ceramics." Journal of Applied Physics 120.17 (2016).

BibTeX: 

Last updated on 2018-19-04 at 03:44