Zheng, Mupeng ; Zhao, Changhao ; Yan, Xiaodong ; Khachaturyan, Ruben ; Zhuo, Fangping ; Hou, Yudong ; Koruza, Jurij (2023)
Metal particle composite hardening in Ba0.85Ca0.15Ti0.90Zr0.10O3 piezoceramics.
In: Advanced Functional Materials
doi: 10.1002/adfm.202301356
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Hard-type piezoceramics are key materials in high-power transducers and transformers. Acceptor doping is the most widely used piezoelectric hardening approach, but the mobility of oxygen vacancies at large electric fields or at high temperatures inevitably leads to the deterioration of hardening performance. The present study proposes a new hardening method associated with intragranular metal particles for achieving strong pinning of ferroelectric domain walls. Highly effective piezoelectric hardening via intragranular Ag particles in Ba 0.85 Ca 0.15 Ti 0.90 Zr 0.10 O3 ceramic is realized, where the mechanical quality factor Qm and the coercive field Ec increase by 170% and 53%, respectively. The Ba 0.85 Ca 0.15 Ti 0.90 Zr 0.10 O3 /0.10Ag sample features a larger high-power mechanical quality factor than the pure Ba 0.85 Ca 0.15 Ti 0.90 Zr 0.10 O3 . Moreover, the piezoelectric properties (d31 and k31 ) of the Ba0.85 Ca 0.15 Ti 0.90 Zr 0.10 O3 /0.10Ag sample show exceptional stability with the increase in vibration velocity. This composite approach of introducing metal particles can be considered as a generic hardening method and can be extended to other ferroelectric systems.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Zheng, Mupeng ; Zhao, Changhao ; Yan, Xiaodong ; Khachaturyan, Ruben ; Zhuo, Fangping ; Hou, Yudong ; Koruza, Jurij |
| Art des Eintrags: | Bibliographie |
| Titel: | Metal particle composite hardening in Ba0.85Ca0.15Ti0.90Zr0.10O3 piezoceramics |
| Sprache: | Englisch |
| Publikationsjahr: | 5 Juni 2023 |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Advanced Functional Materials |
| DOI: | 10.1002/adfm.202301356 |
| Kurzbeschreibung (Abstract): | Hard-type piezoceramics are key materials in high-power transducers and transformers. Acceptor doping is the most widely used piezoelectric hardening approach, but the mobility of oxygen vacancies at large electric fields or at high temperatures inevitably leads to the deterioration of hardening performance. The present study proposes a new hardening method associated with intragranular metal particles for achieving strong pinning of ferroelectric domain walls. Highly effective piezoelectric hardening via intragranular Ag particles in Ba 0.85 Ca 0.15 Ti 0.90 Zr 0.10 O3 ceramic is realized, where the mechanical quality factor Qm and the coercive field Ec increase by 170% and 53%, respectively. The Ba 0.85 Ca 0.15 Ti 0.90 Zr 0.10 O3 /0.10Ag sample features a larger high-power mechanical quality factor than the pure Ba 0.85 Ca 0.15 Ti 0.90 Zr 0.10 O3 . Moreover, the piezoelectric properties (d31 and k31 ) of the Ba0.85 Ca 0.15 Ti 0.90 Zr 0.10 O3 /0.10Ag sample show exceptional stability with the increase in vibration velocity. This composite approach of introducing metal particles can be considered as a generic hardening method and can be extended to other ferroelectric systems. |
| Zusätzliche Informationen: | Artikel-ID: 2301356 |
| 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: | 06 Jun 2023 05:35 |
| Letzte Änderung: | 06 Jun 2023 06:52 |
| PPN: | 508317495 |
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