Zhang, Shan-Tao ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Deng, Yu (2008)
Temperature-Dependent Electrical Properties of 0.94Bi0.5Na0.5TiO3-0.06BaTiO3Ceramics.
In: Journal of the American Ceramic Society, 91 (12)
doi: 10.1111/j.1551-2916.2008.02778.x
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Temperature-dependent electrical properties of lead-free 0.94Bi0.5Na0.5TiO3–0.06BaTiO3 (BNT–BT) ceramics were investigated. Below 100°C, this rhombohedral–tetragonal morphotropic phase-boundary composition shows dominant ferroelectric order with typical ferroelectric polarization–electric field (P(E)) loop and butterfly bipolar strain–electric (S(E)) curve. Antiferroelectric order tends to prevail when temperature reaches about 100°C, characterized by a pinched P(E) loop and altered bipolar S(E) butterfly. Near the ferroelectric–antiferroelectric transition temperature, the composition shows a giant bipolar and unipolar strain of 0.40% and 0.42%, respectively. The highest value of maximum strain divided by the applied field (i.e., Smax/Emax) reaches 700 pm/V at 100°C. With a further increase of temperature to 200°C, a slight decrease of the strain is observed. Especially, it is found that the hysteresis of the unipolar S(E) curve decreases with increasing temperature. These results may be helpful for further understanding and thus designing new BNT-based lead-free piezoelectric systems.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2008 |
| Autor(en): | Zhang, Shan-Tao ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Deng, Yu |
| Art des Eintrags: | Bibliographie |
| Titel: | Temperature-Dependent Electrical Properties of 0.94Bi0.5Na0.5TiO3-0.06BaTiO3Ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | Dezember 2008 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 91 |
| (Heft-)Nummer: | 12 |
| DOI: | 10.1111/j.1551-2916.2008.02778.x |
| Kurzbeschreibung (Abstract): | Temperature-dependent electrical properties of lead-free 0.94Bi0.5Na0.5TiO3–0.06BaTiO3 (BNT–BT) ceramics were investigated. Below 100°C, this rhombohedral–tetragonal morphotropic phase-boundary composition shows dominant ferroelectric order with typical ferroelectric polarization–electric field (P(E)) loop and butterfly bipolar strain–electric (S(E)) curve. Antiferroelectric order tends to prevail when temperature reaches about 100°C, characterized by a pinched P(E) loop and altered bipolar S(E) butterfly. Near the ferroelectric–antiferroelectric transition temperature, the composition shows a giant bipolar and unipolar strain of 0.40% and 0.42%, respectively. The highest value of maximum strain divided by the applied field (i.e., Smax/Emax) reaches 700 pm/V at 100°C. With a further increase of temperature to 200°C, a slight decrease of the strain is observed. Especially, it is found that the hysteresis of the unipolar S(E) curve decreases with increasing temperature. These results may be helpful for further understanding and thus designing new BNT-based lead-free piezoelectric systems. |
| Zusätzliche Informationen: | SFB 595 A1 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 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 DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > A - Synthese DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) |
| Hinterlegungsdatum: | 18 Mai 2011 15:20 |
| Letzte Änderung: | 05 Mär 2013 09:47 |
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