Liu, Laijun ; Knapp, Michael ; Ehrenberg, Helmut ; Fang, Liang ; Fan, Huiqing ; Schmitt, Ljubomira Ana ; Fuess, Hartmut ; Hoelzel, Markus ; Dammak, Hichem ; Thi, Mai Pham ; Hinterstein, Manuel (2017)
Average vs. local structure and composition-property phase diagram of K 0.5 Na 0.5 NbO 3 -Bi ½ Na ½ TiO 3 system.
In: Journal of the European Ceramic Society, 37 (4)
doi: 10.1016/j.jeurceramsoc.2016.11.024
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Phase diagram of the solid solution system K0.5Na0.5NbO3- Bi½Na½TiO3 [(1-x)KNN-xBNT] has been established from dielectric permittivity measurement and structure analyses. The unit cell volumes continuously decrease depending on the composition, while the local structure maintains distortions away from the cubic average structure in the range 0.10 ≤ x ≤ 0.90. No clear correspondence for the temperatures of phase transition exists between structural studies and physical properties. The dielectric behavior is depicted successively from normal ferroelectric, diffuse phase transition, re-entrant-like relaxor, relaxor + dipolar glass-like relaxor, BNT-like relaxor with the increase of BNT. A comprehensive composition-property phase diagram for this system has been given to understand the various ferroelectric phenomena. The result could be mainly elucidated by the nanoclusters and the disorder driven nucleation of polar nanoregions contributed by a valence mismatch at one of the cation sites.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Liu, Laijun ; Knapp, Michael ; Ehrenberg, Helmut ; Fang, Liang ; Fan, Huiqing ; Schmitt, Ljubomira Ana ; Fuess, Hartmut ; Hoelzel, Markus ; Dammak, Hichem ; Thi, Mai Pham ; Hinterstein, Manuel |
| Art des Eintrags: | Bibliographie |
| Titel: | Average vs. local structure and composition-property phase diagram of K 0.5 Na 0.5 NbO 3 -Bi ½ Na ½ TiO 3 system |
| Sprache: | Englisch |
| Publikationsjahr: | April 2017 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 37 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.1016/j.jeurceramsoc.2016.11.024 |
| URL / URN: | https://doi.org/10.1016/j.jeurceramsoc.2016.11.024 |
| Kurzbeschreibung (Abstract): | Phase diagram of the solid solution system K0.5Na0.5NbO3- Bi½Na½TiO3 [(1-x)KNN-xBNT] has been established from dielectric permittivity measurement and structure analyses. The unit cell volumes continuously decrease depending on the composition, while the local structure maintains distortions away from the cubic average structure in the range 0.10 ≤ x ≤ 0.90. No clear correspondence for the temperatures of phase transition exists between structural studies and physical properties. The dielectric behavior is depicted successively from normal ferroelectric, diffuse phase transition, re-entrant-like relaxor, relaxor + dipolar glass-like relaxor, BNT-like relaxor with the increase of BNT. A comprehensive composition-property phase diagram for this system has been given to understand the various ferroelectric phenomena. The result could be mainly elucidated by the nanoclusters and the disorder driven nucleation of polar nanoregions contributed by a valence mismatch at one of the cation sites. |
| Freie Schlagworte: | Structure, Dielectric Relaxation, Phase diagram, Lead-free ceramics |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Strukturforschung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 27 Dez 2017 12:04 |
| Letzte Änderung: | 27 Dez 2017 12:04 |
| PPN: | |
| Sponsoren: | We acknowledge the support from the fellowship of the Helmholtz Institute and the Karlsruhe Institute of Technology., This work has benefitted from beamtime allocation at P02.1 at PETRA III in Hamburg (Germany) and SPODI at FRM II (Garching) Germany., Financial support from the ‘Bundesministerium für Bildung und Forschung (BMBF)’ under grant number 05K13VK1 is acknowledged., Financial Support from the Australian Research Council (ARC) under grant number DE150100750 and SFB 595 is acknowledged., Financial support from the Natural Science Foundation of China (Nos. 11264010, 51002036, 11564010) and the Natural Science Foundation of Guangxi (Grant No. GA139008) is also acknowledged. |
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