Gao, Pan ; Huang, Xinye ; Liu, Chang ; Zhang, Rongjie ; Chen, Xin ; Lei, Pan ; Zhuo, Fangping ; Liu, Zenghui (2023)
Grain size engineered K0.5Na0.5NbO3 ceramic with enhanced piezoelectric properties by introducing Zn additive.
In: Journal of Materials Science: Materials in Electronics, 34
doi: 10.1007/s10854-023-11652-8
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Developing lead-free piezoelectric materials is crucial for replacing lead-contained materials in electronics. In this study, we address the challenges of low breakdown strength and poor sinterability in (K, Na)NbO 3 (KNN) ceramics by introducing Zn as a sintering aid. The effects of Zn concentration on the structure, breakdown strength, dielectric, and piezoelectric properties of KNN ceramics have been investigated. The Zn-modified KNN ceramics exhibited a dense microstructure with reduced grain size and high breakdown strength. Remarkably, the grain size engineered KNN-xZn (x = 0.02) ceramic demonstrated a significantly enhanced d33 value of 97 pC/N, which was 47% higher than that of the pure KNN ceramic. Simulation results revealed that the accumulation and discharge of electric charges on the surface of undissolved ZnO, due to its high electrical conductivity, led to a degradation in the piezoelectric property. These findings provide insights into the design of lead-free piezoceramics and offer a feasible approach for developing novel KNN-based materials for electromechanical transduction applications.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Gao, Pan ; Huang, Xinye ; Liu, Chang ; Zhang, Rongjie ; Chen, Xin ; Lei, Pan ; Zhuo, Fangping ; Liu, Zenghui |
| Art des Eintrags: | Bibliographie |
| Titel: | Grain size engineered K0.5Na0.5NbO3 ceramic with enhanced piezoelectric properties by introducing Zn additive |
| Sprache: | Englisch |
| Publikationsjahr: | 24 November 2023 |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Materials Science: Materials in Electronics |
| Jahrgang/Volume einer Zeitschrift: | 34 |
| Kollation: | 14 Seiten |
| DOI: | 10.1007/s10854-023-11652-8 |
| Kurzbeschreibung (Abstract): | Developing lead-free piezoelectric materials is crucial for replacing lead-contained materials in electronics. In this study, we address the challenges of low breakdown strength and poor sinterability in (K, Na)NbO 3 (KNN) ceramics by introducing Zn as a sintering aid. The effects of Zn concentration on the structure, breakdown strength, dielectric, and piezoelectric properties of KNN ceramics have been investigated. The Zn-modified KNN ceramics exhibited a dense microstructure with reduced grain size and high breakdown strength. Remarkably, the grain size engineered KNN-xZn (x = 0.02) ceramic demonstrated a significantly enhanced d33 value of 97 pC/N, which was 47% higher than that of the pure KNN ceramic. Simulation results revealed that the accumulation and discharge of electric charges on the surface of undissolved ZnO, due to its high electrical conductivity, led to a degradation in the piezoelectric property. These findings provide insights into the design of lead-free piezoceramics and offer a feasible approach for developing novel KNN-based materials for electromechanical transduction applications. |
| Zusätzliche Informationen: | Artikel-ID: 2210 |
| 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 Nov 2023 08:00 |
| Letzte Änderung: | 27 Nov 2023 10:13 |
| PPN: | 513487387 |
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