Sluka, Tomas ; Webber, Kyle G. ; Colla, Enrico ; Damjanovic, Dragan (2012)
Phase field simulations of ferroelastic toughening: The influence of phase boundaries and domain structures.
In: Acta Materialia, 60 (13-14)
doi: 10.1016/j.actamat.2012.06.023
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Limited reliability of ferroelectric-based actuators restricts their use in high-performance applications, where stress-induced cracking of ferroelectric ceramics often leads to fatal failure. The main limiting factors are the relatively small fracture toughness and the brittle nature of ferroelectrics. However, ferroelectrics naturally exhibit fracture toughening (so called ferroelastic toughening) due to stress induced reorientation of non-180° domains that inhibits crack propagation. Here we present a phase-field study of ferroelastic toughening based on Landau–Ginzburg–Devonshire theory. The primary qualitative factors that control the magnitude of ferroelastic toughening are identified and discussed.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Sluka, Tomas ; Webber, Kyle G. ; Colla, Enrico ; Damjanovic, Dragan |
| Art des Eintrags: | Bibliographie |
| Titel: | Phase field simulations of ferroelastic toughening: The influence of phase boundaries and domain structures |
| Sprache: | Englisch |
| Publikationsjahr: | August 2012 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Acta Materialia |
| Jahrgang/Volume einer Zeitschrift: | 60 |
| (Heft-)Nummer: | 13-14 |
| DOI: | 10.1016/j.actamat.2012.06.023 |
| Kurzbeschreibung (Abstract): | Limited reliability of ferroelectric-based actuators restricts their use in high-performance applications, where stress-induced cracking of ferroelectric ceramics often leads to fatal failure. The main limiting factors are the relatively small fracture toughness and the brittle nature of ferroelectrics. However, ferroelectrics naturally exhibit fracture toughening (so called ferroelastic toughening) due to stress induced reorientation of non-180° domains that inhibits crack propagation. Here we present a phase-field study of ferroelastic toughening based on Landau–Ginzburg–Devonshire theory. The primary qualitative factors that control the magnitude of ferroelastic toughening are identified and discussed. |
| Freie Schlagworte: | Ferroelectricity; Toughness; Fracture; Phase field models; Simulation |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Elektromechanik von Oxiden 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 30 Jul 2012 11:45 |
| Letzte Änderung: | 28 Feb 2014 08:53 |
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