Han, Hyoung-Su ; Koruza, Jurij ; Patterson, Eric A. ; Schultheiß, Jan ; Erdem, Emre ; Jo, Wook ; Lee, Jae-Shin ; Rödel, Jürgen (2017)
Hardening behavior and highly enhanced mechanical quality factor in(K0.5Na0.5)NbO3–based ceramics.
In: Journal of the European Ceramic Society, 37 (5)
doi: 10.1016/j.jeurceramsoc.2017.01.013
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
This paper relates the microstructure, crystallographic structure, ferroelectric, and piezoelectric prop-erties of (K0.5Na0.5)NbO3(KNN) ceramics modified with 0.38 mol% K5.4Cu1.3Ta10O29(KCT) and differentamounts of CuO. Results revealed that the addition of KCT and CuO were effective in enhancing thesinterability of KNN. The internal bias field (Eib) increased from 0.3 kV/mm to 0.58 kV/mm at 0.5 mol%CuO–added KNN+KCT ceramics. The increase of Eibcorresponds very well with the observed increase ofthe mechanical quality factor (Qm) from 112 to 2665 for 0.5 mol% CuO. Besides, addition of 0.5 mol% CuOto KNN+KCT resulted in a large increase of the EPR signal, which is related to the increased amount Cu2+and a corresponding increase of the concentration of defect dipoles. This result is in good agreement withthe increased Eiband the resulting hardening behavior.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Han, Hyoung-Su ; Koruza, Jurij ; Patterson, Eric A. ; Schultheiß, Jan ; Erdem, Emre ; Jo, Wook ; Lee, Jae-Shin ; Rödel, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | Hardening behavior and highly enhanced mechanical quality factor in(K0.5Na0.5)NbO3–based ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | 20 Februar 2017 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 37 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.1016/j.jeurceramsoc.2017.01.013 |
| Kurzbeschreibung (Abstract): | This paper relates the microstructure, crystallographic structure, ferroelectric, and piezoelectric prop-erties of (K0.5Na0.5)NbO3(KNN) ceramics modified with 0.38 mol% K5.4Cu1.3Ta10O29(KCT) and differentamounts of CuO. Results revealed that the addition of KCT and CuO were effective in enhancing thesinterability of KNN. The internal bias field (Eib) increased from 0.3 kV/mm to 0.58 kV/mm at 0.5 mol%CuO–added KNN+KCT ceramics. The increase of Eibcorresponds very well with the observed increase ofthe mechanical quality factor (Qm) from 112 to 2665 for 0.5 mol% CuO. Besides, addition of 0.5 mol% CuOto KNN+KCT resulted in a large increase of the EPR signal, which is related to the increased amount Cu2+and a corresponding increase of the concentration of defect dipoles. This result is in good agreement withthe increased Eiband the resulting hardening behavior. |
| Freie Schlagworte: | Lead-free Piezoelectric ceramics KNN Hardening effect Mechanical quality factor |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 21 Feb 2017 06:48 |
| Letzte Änderung: | 21 Feb 2017 06:48 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum