Dittmer, Robert ; Jo, Wook ; Aulbach, Emil ; Granzow, Torsten ; Rödel, Jürgen (2012)
Frequency-dependence of large-signal properties in lead-free piezoceramics.
In: Journal of Applied Physics, 112 (1)
doi: 10.1063/1.4730600
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The dependence of large signal properties of (1−x)(0.81Bi1/2Na1/2TiO3-0.19Bi1/2K1/2TiO3)-xBi(Zn1/2Ti1/2)O3 with x = 0.02, 0.03, and 0.04 on the measurement frequency was investigated for a wide range of frequencies from 0.1 Hz to 100 Hz. A significant frequency dispersion in the characteristic parameters representatively maximum and coercive values was denoted. On extension with the temperature dependent dielectric permittivity measurement, it was shown that the observed frequency dependence is primarily correlated with the dynamics of field-induced phase transition from a relaxor state to a long-range ferroelectric state. Increasing the substitutional disorder introduced by Bi(Zn1/2Ti1/2)O3 addition was demonstrated to pronounce the frequency dependence. It was proposed that the change be due to the increase in random fields and consequent dominance of ergodicity, based on the frequency-dependent hysteresis measurements at an elevated temperature above so-called induced-ferroelectric-to-relaxor transition temperature.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Dittmer, Robert ; Jo, Wook ; Aulbach, Emil ; Granzow, Torsten ; Rödel, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | Frequency-dependence of large-signal properties in lead-free piezoceramics |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Juli 2012 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Applied Physics |
| Jahrgang/Volume einer Zeitschrift: | 112 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1063/1.4730600 |
| Kurzbeschreibung (Abstract): | The dependence of large signal properties of (1−x)(0.81Bi1/2Na1/2TiO3-0.19Bi1/2K1/2TiO3)-xBi(Zn1/2Ti1/2)O3 with x = 0.02, 0.03, and 0.04 on the measurement frequency was investigated for a wide range of frequencies from 0.1 Hz to 100 Hz. A significant frequency dispersion in the characteristic parameters representatively maximum and coercive values was denoted. On extension with the temperature dependent dielectric permittivity measurement, it was shown that the observed frequency dependence is primarily correlated with the dynamics of field-induced phase transition from a relaxor state to a long-range ferroelectric state. Increasing the substitutional disorder introduced by Bi(Zn1/2Ti1/2)O3 addition was demonstrated to pronounce the frequency dependence. It was proposed that the change be due to the increase in random fields and consequent dominance of ergodicity, based on the frequency-dependent hysteresis measurements at an elevated temperature above so-called induced-ferroelectric-to-relaxor transition temperature. |
| Freie Schlagworte: | bismuth compounds, dielectric hysteresis, ferroelectric ceramics, ferroelectric transitions, long-range order, permittivity, piezoceramics, potassium compounds, relaxor ferroelectrics, sodium compounds |
| Zusätzliche Informationen: | SFB 595 A1 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > A - Synthese > Teilprojekt A1: Herstellung keramischer, texturierter Akuatoren mit hoher Dehnung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > A - Synthese DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung 11 Fachbereich Material- und Geowissenschaften Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) |
| Hinterlegungsdatum: | 03 Jul 2012 08:12 |
| Letzte Änderung: | 05 Mär 2013 10:01 |
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