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dc.contributor.authorCamposilvan, Erik
dc.contributor.authorJiménez Piqué, Emilio
dc.contributor.authorAnglada Gomila, Marcos Juan
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.identifier.citationCamposilvan, E.; Jimenez-Pique, E.; Anglada, M. Micro-mechanical testing of advanced ceramics: tools, procedures and first results. A: Encuentro del Grupo Español de Fractura. "Anales de Mecánica de Fractura". Toledo: Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2013, p. 451-456.
dc.description.abstractMicro-mechanical testing has lately become a more accessible tool for understanding deformation, strengthening and failure mechanisms at small scales. It has been found that the often considered intrinsic or “intensive” properties of materials, i.e. not size dependent, start to exhibit an extrinsic behaviour if the volume of material tested is reduced down to the level of the micro- or nano-scale. This is true at least for metals, where diverse experimental approaches have shown that the ultimate strength strongly increases in enough small material volumes in the micro-nano range. In ceramics, the small scale testing approach has received much less attention probably because of the absence of dislocation-controlled deformation mechanisms. Even though, it is the only direct method for the study of the mechanical behaviour of ceramics in thin coatings, superficial layers induced by surface degradation processes as in wear, corrosion, etc. Besides, in ceramics with a grain size dependent transformation toughening mechanism, such as zirconia-based ceramics, a clear effect is expected when testing at the micro-scale. In this work the methodology of micro-mechanical testing is presented and is applied to yttria-stabilized zirconia. Advantages and limitations of the technique are discussed and details about the combination of FIB-machining and nanoindentation testing are illustrated. At the same time, first results of the strength in compression of zirconia micropillars are presented and the failure mechanism is discussed.
dc.format.extent6 p.
dc.publisherCentre Internacional de Mètodes Numèrics en Enginyeria (CIMNE)
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshMetals--Mechanical properties
dc.subject.otherMicro-mechanical testing
dc.subject.otherFIB machining
dc.titleMicro-mechanical testing of advanced ceramics: tools, procedures and first results
dc.typeConference report
dc.subject.lemacZirconi -- Propietats mecàniques
dc.contributor.groupUniversitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
local.citation.authorCamposilvan, E.; Jimenez-Pique, E.; Anglada, M.
local.citation.contributorEncuentro del Grupo Español de Fractura
local.citation.publicationNameAnales de Mecánica de Fractura

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