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dc.contributor.authorMelk, Latifa
dc.contributor.authorTurón Viñas, Miquel
dc.contributor.authorRoa Rovira, Joan Josep
dc.contributor.authorAntti, Marta-Lena
dc.contributor.authorAnglada Gomila, Marcos Juan
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.date.accessioned2016-02-18T12:34:33Z
dc.date.issued2016-01-01
dc.identifier.citationMelk, L., Turón Viñas, M., Roa, J.J., Antti, M., Anglada, M. The influence of unshielded small cracks in the fracture toughness of yttria and of ceria stabilised zirconia. "Journal of the european ceramic society", 01 Gener 2016, vol. 36, núm. 1, p. 147-153.
dc.identifier.issn0955-2219
dc.identifier.urihttp://hdl.handle.net/2117/83109
dc.description.abstractThe fracture toughness, Ric of two 3Y-ZrO2 with different grain size (177 and 330 nm) and 12Ce-ZrO2 were determined from a sharp micro-machined notch by Ultra-Short Pulsed Laser Ablation (UPLA) where a micro-cracked zone and non-transformed is generated in front of the notch. The notch plus the damage behaved as an unshielded edge surface crack. The fracture stress, sigma(f) of both 330 nm-3Y-ZrO2 and 12Ce-ZrO2 with similar short crack sizes were found to be comparable in despite of their different published R-curves. The results of K-IC were discussed in terms of the type of cracks induced and by using a simple R-curve model. It was concluded that for the development of high strength composites with 12Ce-ZrO2 as the matrix, the relevant K-IC that controls the sigma(f) with surface unshielded short cracks is much closer to the intrinsic K-IC than to the indentation K-IC or to the plateau K-IC of long cracks. (C) 2015 Elsevier Ltd. All rights reserved.
dc.format.extent7 p.
dc.language.isoeng
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshFracture mechanics
dc.subject.lcshZirconium alloys
dc.subject.otherFracture resistance curves
dc.subject.otherFracture stress
dc.subject.otherZirconia
dc.subject.other3Y-ZrO2
dc.subject.other12Ce-ZrO2
dc.subject.otherR-curve behavior
dc.subject.othertransformation
dc.subject.otherceramics
dc.subject.othersize
dc.titleThe influence of unshielded small cracks in the fracture toughness of yttria and of ceria stabilised zirconia
dc.typeArticle
dc.subject.lemacMecànica de fractura
dc.subject.lemacZirconi -- Propietats mecàniques
dc.contributor.groupUniversitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials
dc.identifier.doi10.1016/j.jeurceramsoc.2015.09.017
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0955221915301369
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac17255646
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/MICINN/6PN/MAT2011-23913
dc.date.lift10000-01-01
local.citation.authorMelk, L.; Turón Viñas, M.; Roa, J.J.; Antti, M.; Anglada, M.
local.citation.publicationNameJournal of the european ceramic society
local.citation.volume36
local.citation.number1
local.citation.startingPage147
local.citation.endingPage153


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Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial 3.0 Spain