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

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Ehara Y, Novak N, Ayrikyan A, Geiger P, Webber K
Zeitschrift: Journal of Applied Physics
Verlag: AMER INST PHYSICS
Jahr der Veröffentlichung: 2016
Band: 120
Heftnummer: 17
ISSN: 0021-8979
Sprache: Englisch


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-Autoren / FAU-Herausgeber

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


Autor(en) der externen Einrichtung(en)
Technische Universität Darmstadt


Zitierweisen

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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