Ansell, Troy Y. ; Cann, David P. ; Sapper, Eva ; Rödel, Jürgen (2014)
Thermal Depolarization in the High-Temperature Ternary Piezoelectric SystemxPbTiO3-yBiScO3-zBi(Ni1/2Ti1/2)O3.
In: Journal of the American Ceramic Society, 98 (2)
doi: 10.1111/jace.13268
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In the high-temperature ternary perovskite piezoelectric system xPbTiO3–yBiScO3–zBi(Ni1/2,Ti1/2)O3 (PT–BS–BNiT), the addition of bismuth to the A site and nickel to the B site leads to compositions that exhibit diffuse relaxor-like behavior. For these, depolarization temperature, not Curie point, is the critical value of temperature. Depolarization temperature (Td) is defined as the temperature at which the steepest loss in polarization occurs. This temperature is observed in poled materials through two different methods: loss tangent measurements and in situ d33. Across the ternary system, multiple dielectric anomalies occurred which was observed in dielectric tests where the dielectric peak broadens and becomes frequency dependent as BNiT content increased. For different compositions, the value of Td ranged between 275°C–375°C. Values for the piezoelectric coefficient increased with temperature up to d33 = 1000 pC/N during in situ d33. High temperature (up to 190°C) and high field (up to 40 kV/cm) were also applied to test ferroelectric properties in these regimes.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Ansell, Troy Y. ; Cann, David P. ; Sapper, Eva ; Rödel, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | Thermal Depolarization in the High-Temperature Ternary Piezoelectric SystemxPbTiO3-yBiScO3-zBi(Ni1/2Ti1/2)O3 |
| Sprache: | Englisch |
| Publikationsjahr: | Februar 2014 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 98 |
| (Heft-)Nummer: | 2 |
| DOI: | 10.1111/jace.13268 |
| Kurzbeschreibung (Abstract): | In the high-temperature ternary perovskite piezoelectric system xPbTiO3–yBiScO3–zBi(Ni1/2,Ti1/2)O3 (PT–BS–BNiT), the addition of bismuth to the A site and nickel to the B site leads to compositions that exhibit diffuse relaxor-like behavior. For these, depolarization temperature, not Curie point, is the critical value of temperature. Depolarization temperature (Td) is defined as the temperature at which the steepest loss in polarization occurs. This temperature is observed in poled materials through two different methods: loss tangent measurements and in situ d33. Across the ternary system, multiple dielectric anomalies occurred which was observed in dielectric tests where the dielectric peak broadens and becomes frequency dependent as BNiT content increased. For different compositions, the value of Td ranged between 275°C–375°C. Values for the piezoelectric coefficient increased with temperature up to d33 = 1000 pC/N during in situ d33. High temperature (up to 190°C) and high field (up to 40 kV/cm) were also applied to test ferroelectric properties in these regimes. |
| Zusätzliche Informationen: | SFB 595 D1 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > D - Bauteileigenschaften > Teilprojekt D1: Mesoskopische und makroskopische Ermüdung in dotierten ferroelektrischen Keramiken 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > D - Bauteileigenschaften 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: | 05 Feb 2015 08:43 |
| Letzte Änderung: | 05 Feb 2015 08:43 |
| PPN: | |
| Sponsoren: | Deutsche Forschungsgemeinschaft (DFG). Grant Number: SFB595 project D1. |
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