Kodumudi Venkataraman, Lalitha ; Zhu, Tingting ; Salazar, Moinca Pinto ; Hofmann, Kathrin ; Waidha, Aamir Iqbal ; Jaud, J.-C. ; Groszewicz, Pedro B. ; Rödel, Jürgen (2021)
Thermal depolarization and electromechanical hardening in Zn2+-doped Na1/2Bi1/2TiO3-BaTiO3.
In: Journal of the American Ceramic Society, 104 (5)
doi: 10.1111/jace.17581
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
Na1/2Bi1/2TiO3-based materials have been earmarked for one of the first large-volume applications of lead-free piezoceramics in high-power ultrasonics. Zn2+-doping is demonstrated as a viable route to enhance the thermal depolarization temperature and electromechanically harden (1-y)Na1/2Bi1/2TiO3-yBaTiO3(NBT100yBT) with a maximum achievable operating temperature of 150 °C and mechanical quality factor of 627 for 1 mole % Zn2+-doped NBT6BT. Although quenching from sintering tempera-tures has been recently touted to enhance T F-R, with quenching the doped composi- tions featuring an additional increase in T F-R by 17 °C, it exhibits negligible effect on the electromechanical properties. The effect is rationalized considering the missing influence on conductivity and therefore, negligible changes in the defect chemistry upon quenching. High-resolution diffraction indicates that Zn 2+-doped samples favor the tetragonal phase with enhanced lattice distortion, further corroborated by 23Na Nuclear Magnetic Resonance investigations.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Kodumudi Venkataraman, Lalitha ; Zhu, Tingting ; Salazar, Moinca Pinto ; Hofmann, Kathrin ; Waidha, Aamir Iqbal ; Jaud, J.-C. ; Groszewicz, Pedro B. ; Rödel, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | Thermal depolarization and electromechanical hardening in Zn2+-doped Na1/2Bi1/2TiO3-BaTiO3 |
| Sprache: | Englisch |
| Publikationsjahr: | 12 Mai 2021 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 104 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.1111/jace.17581 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Na1/2Bi1/2TiO3-based materials have been earmarked for one of the first large-volume applications of lead-free piezoceramics in high-power ultrasonics. Zn2+-doping is demonstrated as a viable route to enhance the thermal depolarization temperature and electromechanically harden (1-y)Na1/2Bi1/2TiO3-yBaTiO3(NBT100yBT) with a maximum achievable operating temperature of 150 °C and mechanical quality factor of 627 for 1 mole % Zn2+-doped NBT6BT. Although quenching from sintering tempera-tures has been recently touted to enhance T F-R, with quenching the doped composi- tions featuring an additional increase in T F-R by 17 °C, it exhibits negligible effect on the electromechanical properties. The effect is rationalized considering the missing influence on conductivity and therefore, negligible changes in the defect chemistry upon quenching. High-resolution diffraction indicates that Zn 2+-doped samples favor the tetragonal phase with enhanced lattice distortion, further corroborated by 23Na Nuclear Magnetic Resonance investigations. |
| Freie Schlagworte: | electromechanical hardening, Na0.5Bi0.5TiO3, quenching, thermal depolarization, Zn2+-doping |
| Zusätzliche Informationen: | First published online: 22 November 2020 |
| 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 |
| Hinterlegungsdatum: | 03 Feb 2021 10:33 |
| Letzte Änderung: | 08 Jan 2024 07:46 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Thermal depolarization and electromechanical hardening in Zn²⁺‐doped Na₁/₂Bi₁/₂TiO₃‐BaTiO₃. (deposited 05 Jan 2024 13:50)
- Thermal depolarization and electromechanical hardening in Zn2+-doped Na1/2Bi1/2TiO3-BaTiO3. (deposited 03 Feb 2021 10:33) [Gegenwärtig angezeigt]
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