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)


External institutions with authors

Technische Universität Darmstadt


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).

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Last updated on 2018-18-11 at 20:53