Zhang, Hailong ; Jo, Wook ; Wang, Ke ; Webber, Kyle G. (2014)
Compositional dependence of dielectric and ferroelectric properties in BiFeO3–BaTiO3 solid solutions.
In: Ceramics International, 40 (3)
doi: 10.1016/j.ceramint.2013.09.020
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Polycrystalline (1−x)BiFeO3–xBaTiO3 (0.11≤x≤0.5) ceramics have been prepared by the solid-state reaction method to investigate their phase structure, dielectric, ferroelectric, and field-induced strain behaviors. The phase was found to change from rhombohedral in BiFeO3-rich compositions to pseudocubic at a BaTiO3 content of x=0.33. The room-temperature dielectric permittivity increased with increasing BaTiO3 content regardless of phase structure, except for a small dielectric permittivity peak additionally observed at x=0.33. The (1−x)BiFeO3–xBaTiO3 solid solutions displayed a maximum in permittivity at temperatures (Tm) above 300 °C in the compositional range of 0.2≤x≤0.5. The frequency dependence of high-temperature dielectric properties suggests that BiFeO3–BaTiO3 is a relaxor ferroelectric. Normal ferroelectric loops and large electric field-induced strains were observed for the BiFeO3–BaTiO3 ceramics. The BiFeO3–BaTiO3 shows a promising candidate for high temperature ferroelectric applications.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Zhang, Hailong ; Jo, Wook ; Wang, Ke ; Webber, Kyle G. |
| Art des Eintrags: | Bibliographie |
| Titel: | Compositional dependence of dielectric and ferroelectric properties in BiFeO3–BaTiO3 solid solutions |
| Sprache: | Englisch |
| Publikationsjahr: | April 2014 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Ceramics International |
| Jahrgang/Volume einer Zeitschrift: | 40 |
| (Heft-)Nummer: | 3 |
| DOI: | 10.1016/j.ceramint.2013.09.020 |
| Kurzbeschreibung (Abstract): | Polycrystalline (1−x)BiFeO3–xBaTiO3 (0.11≤x≤0.5) ceramics have been prepared by the solid-state reaction method to investigate their phase structure, dielectric, ferroelectric, and field-induced strain behaviors. The phase was found to change from rhombohedral in BiFeO3-rich compositions to pseudocubic at a BaTiO3 content of x=0.33. The room-temperature dielectric permittivity increased with increasing BaTiO3 content regardless of phase structure, except for a small dielectric permittivity peak additionally observed at x=0.33. The (1−x)BiFeO3–xBaTiO3 solid solutions displayed a maximum in permittivity at temperatures (Tm) above 300 °C in the compositional range of 0.2≤x≤0.5. The frequency dependence of high-temperature dielectric properties suggests that BiFeO3–BaTiO3 is a relaxor ferroelectric. Normal ferroelectric loops and large electric field-induced strains were observed for the BiFeO3–BaTiO3 ceramics. The BiFeO3–BaTiO3 shows a promising candidate for high temperature ferroelectric applications. |
| Freie Schlagworte: | Powders: solid state reaction; Dielectric properties; Ferroelectric properties; BaTiO3 and titanates |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Elektromechanik von Oxiden 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 14 Apr 2014 10:46 |
| Letzte Änderung: | 14 Apr 2014 10:46 |
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