Phase field simulations of ferroelastic toughening: The influence of phase boundaries and domain structures

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Sluka T, Webber K, Colla E, Damjanovic D
Zeitschrift: Acta Materialia
Verlag: Elsevier
Jahr der Veröffentlichung: 2012
Band: 60
Seitenbereich: 5172-5181
ISSN: 1359-6454


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 degrees 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. (c) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.



FAU-Autoren / FAU-Herausgeber

Webber, Kyle Prof.
Professur für Werkstoffwissenschaften (Funktionskeramik)


Autor(en) der externen Einrichtung(en)
École Polytechnique Fédérale de Lausanne (EPFL)


Zitierweisen

APA:
Sluka, T., Webber, K., Colla, E., & Damjanovic, D. (2012). Phase field simulations of ferroelastic toughening: The influence of phase boundaries and domain structures. Acta Materialia, 60, 5172-5181. https://dx.doi.org/10.1016/j.actamat.2012.06.023

MLA:
Sluka, Tomas, et al. "Phase field simulations of ferroelastic toughening: The influence of phase boundaries and domain structures." Acta Materialia 60 (2012): 5172-5181.

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Zuletzt aktualisiert 2018-02-07 um 11:23