Phase transformation induced by electric field and mechanical stress in Mn-doped (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3 ceramics
Ehara Y, Novak N, Ayrikyan A, Geiger P, Webber KG (2016)
Publication Language: English
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2016
Journal
Publisher: AMER INST PHYSICS
Book Volume: 120
Article Number: 174103
Journal Issue: 17
DOI: 10.1063/1.4966614
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.
Authors with CRIS profile
Azatuhi Ayrikyan
Lehrstuhl für Glas und Keramik
Philipp Geiger
Lehrstuhl für Glas und Keramik
Kyle Grant Webber
Professur für Werkstoffwissenschaften (Funktionskeramik)
Involved external institutions
Germany (DE)How to cite
APA:
Ehara, Y., Novak, N., Ayrikyan, A., Geiger, P., & Webber, K.G. (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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