Ehara, Yoshitaka ; Novak, Nikola ; Ayrikyan, Azatuhi ; Geiger, Philipp T. ; Webber, Kyle G. (2016)
Phase transformation induced by electric field and mechanical stress
in Mn-doped (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3 ceramics.
In: Journal of Applied Physics, 120 (174103)
doi: 10.1063/1.4966614
Artikel, Bibliographie
Kurzbeschreibung (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 ¼ 0.1, 0.2). To characterize the effect of electric field and stress on the stability of the ferroelectric and relaxor states, polarizationand 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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Ehara, Yoshitaka ; Novak, Nikola ; Ayrikyan, Azatuhi ; Geiger, Philipp T. ; Webber, Kyle G. |
| Art des Eintrags: | Bibliographie |
| Titel: | Phase transformation induced by electric field and mechanical stress in Mn-doped (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3 ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | 7 November 2016 |
| Verlag: | AIP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Applied Physics |
| Jahrgang/Volume einer Zeitschrift: | 120 |
| (Heft-)Nummer: | 174103 |
| DOI: | 10.1063/1.4966614 |
| Kurzbeschreibung (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 ¼ 0.1, 0.2). To characterize the effect of electric field and stress on the stability of the ferroelectric and relaxor states, polarizationand 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. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 15 Nov 2016 06:41 |
| Letzte Änderung: | 15 Nov 2016 06:41 |
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