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dc.contributor.authorBotero Vega, Carlos Alberto
dc.contributor.authorJiménez Piqué, Emilio
dc.contributor.authorMartin, R
dc.contributor.authorKulkami, Tushar
dc.contributor.authorSarin, Vinod K.
dc.contributor.authorLlanes Pitarch, Luis Miguel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.date.accessioned2015-09-17T09:56:50Z
dc.date.available2017-03-01T01:30:25Z
dc.date.created2015-03-01
dc.date.issued2015-03-01
dc.identifier.citationBotero, C., Jimenez-Pique, E., Martin, R., Kulkami, T., Sarin, V., Llanes, L. Influence of temperature and hot corrosion on the micro-nanomechanical behavior of protective mullite EBCs. "International journal of refractory metals and hard materials", 01 Març 2015, núm. Special Issue, p. 383-391.
dc.identifier.issn0263-4368
dc.identifier.urihttp://hdl.handle.net/2117/76886
dc.description.abstractMaterials for components installed in the hot section of gas turbines must endure highly aggressive conditions, such as elevated temperatures and corrosive environments. Under these scenarios, CVD mullite coatings enriched in alumina in the outer surface have demonstrated excellent thermal stability and protection to SiC against corrosion and recession. It is essential that, in addition to the excellent protective behavior exhibited by Al-rich mullite coatings, their structural integrity and mechanical properties can be retained after their exposure to such aggressive conditions. This investigation is devoted to the study of the effect of temperature and hotcorrosion on the main micro-nanomechanical properties and performance of mullite-based EBCs. Nanoindentation was conducted to determine coatings' hardness, stiffness and fracture toughness whereas nanoscratch tests allowed evaluating their intrinsic structural integrity. Temperature and corrosion were found to have a minor effect on the mechanical behavior of the studied coatings. Hardness and Young's modulus remained comparable after thermal treatments, and scratch tests show similar damage features. From these results it can be concluded that mullite-based coatings present a satisfactory structural integrity and reliability to be used as environmental barrier coatings for hot environments. (C) 2014 Elsevier Ltd. All rights reserved.
dc.format.extent9 p.
dc.language.isoeng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshNanotechnology
dc.subject.lcshMaterials--Mechanical properties
dc.subject.lcshMicromechanics
dc.subject.otherNanoindentation
dc.subject.otherNanoscratch
dc.subject.otherMullite
dc.subject.otherEnvironmental barrier coatings
dc.subject.otherThermal stability
dc.subject.otherenvironmental barrier coatings
dc.subject.otherchemical-vapor-deposition
dc.subject.othersi-based ceramics
dc.subject.othernanoindentation
dc.subject.othernanoscratch
dc.subject.otherfilms
dc.titleInfluence of temperature and hot corrosion on the micro-nanomechanical behavior of protective mullite EBCs
dc.typeArticle
dc.subject.lemacNanotecnologia
dc.subject.lemacMaterials -- Propietats mecàniques
dc.subject.lemacMicromecànica
dc.subject.lemacMecànica de fractura
dc.contributor.groupUniversitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Fiabilitat i Micromecànica dels Materials
dc.identifier.doi10.1016/j.ijrmhm.2014.09.025
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0263436814002443
dc.rights.accessOpen Access
local.identifier.drac15633099
dc.description.versionPostprint (author’s final draft)
local.citation.authorBotero, C.; Jimenez-Pique, E.; Martin, R.; Kulkami, T.; Sarin, V.; Llanes, L.
local.citation.publicationNameInternational journal of refractory metals and hard materials
local.citation.volume49
local.citation.numberSpecial Issue
local.citation.startingPage383
local.citation.endingPage391


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