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Conducting crack propagation driven by electric fields in ferroelectric ceramics

Autor
Abdollahi, A.; Arias, I.
Tipus d'activitat
Article en revista
Revista
Acta materialia
Data de publicació
2013-11
Volum
61
Número
19
Pàgina inicial
7087
Pàgina final
7097
DOI
https://doi.org/10.1016/j.actamat.2013.07.050 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/20444 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S1359645413005703 Obrir en finestra nova
Resum
Ferroelectric ceramics are susceptible to fracture under high electric fields, which are commonly generated in the vicinity of electrodes or conducting layers. In the present work, we extend a phase-field model of fracture in ferroelectric single crystals to the simulation of the propagation of conducting cracks under purely electrical loading. This is done by introducing the electrical enthalpy of a diffuse conducting layer into the phase-field formulation. Simulation results show oblique crack...
Citació
Abdollahi, A.; Arias, I. Conducting crack propagation driven by electric fields in ferroelectric ceramics. "Acta materialia", Novembre 2013, vol. 61, núm. 19, p. 7087-7097.
Paraules clau
Cracks Computer simulation Crack propagation Electric field effects Ferroelectric ceramics Ferroelectricity Fracture Microstructure
Grup de recerca
LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria

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