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Effect of thermal depolarization on the poling-induced domain texture and piezoelectric properties in Mg-doped NBT-6BT

Cangini, Laura ; Wohninsland, Andreas ; Bremecker, Daniel ; Fulanovic, Lovro ; Zhao, Changhao ; Rödel, Jürgen (2023)
Effect of thermal depolarization on the poling-induced domain texture and piezoelectric properties in Mg-doped NBT-6BT.
In: Journal of the American Ceramic Society
doi: 10.1111/jace.19331
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Recently, poled Na0.50Bi0.50TiO3-BaTiO3 (NBT-BT)-based polycrystalline materials have been characterized as possessing a high degree of poling-induced domain texture in their remanent state. This finding is suggested to be the reason for their stable mechanical quality factor at high-vibration velocity, making them promising candidates for high-power applications. The materials in consideration are prone to self-heating and thermal run-away, particularly at slightly elevated temperatures. Therefore, this paper evaluates the temperature dependence of the poling-induced domain texture of (Na0.47Bi0.47Ba0.06)TiO3 (NBT-6BT) doped with 0.5 mol% of Mg as compared to undoped NBT-6BT. Its influence on small-signal, large-signal, and high-power properties was investigated. To obtain a fundamental understanding of crystal structure, in-situ synchrotron measurements were conducted as function of temperature to establish a relationship between structure and piezoelectric properties of both Mg-doped and undoped NBT-6BT materials.

Typ des Eintrags: Artikel
Erschienen: 2023
Autor(en): Cangini, Laura ; Wohninsland, Andreas ; Bremecker, Daniel ; Fulanovic, Lovro ; Zhao, Changhao ; Rödel, Jürgen
Art des Eintrags: Bibliographie
Titel: Effect of thermal depolarization on the poling-induced domain texture and piezoelectric properties in Mg-doped NBT-6BT
Sprache: Englisch
Publikationsjahr: 26 Juli 2023
Verlag: Wiley
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of the American Ceramic Society
Kollation: 12 Seiten
DOI: 10.1111/jace.19331
Kurzbeschreibung (Abstract):

Recently, poled Na0.50Bi0.50TiO3-BaTiO3 (NBT-BT)-based polycrystalline materials have been characterized as possessing a high degree of poling-induced domain texture in their remanent state. This finding is suggested to be the reason for their stable mechanical quality factor at high-vibration velocity, making them promising candidates for high-power applications. The materials in consideration are prone to self-heating and thermal run-away, particularly at slightly elevated temperatures. Therefore, this paper evaluates the temperature dependence of the poling-induced domain texture of (Na0.47Bi0.47Ba0.06)TiO3 (NBT-6BT) doped with 0.5 mol% of Mg as compared to undoped NBT-6BT. Its influence on small-signal, large-signal, and high-power properties was investigated. To obtain a fundamental understanding of crystal structure, in-situ synchrotron measurements were conducted as function of temperature to establish a relationship between structure and piezoelectric properties of both Mg-doped and undoped NBT-6BT materials.

Freie Schlagworte: hardness, high-power application, piezoelectric materials/properties, polarization, texture
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: 27 Jul 2023 05:11
Letzte Änderung: 10 Nov 2023 08:07
PPN: 509966810
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