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dc.contributor.authorMachado, I.F.
dc.contributor.authorBoidi, G.
dc.contributor.authorFukumasu, N.K.
dc.contributor.authorTertuliano, A.J.O.
dc.contributor.authorSeriacopi, V.
dc.contributor.authorSouza, R.M.
dc.date.accessioned2024-10-15T21:36:52Z
dc.date.available2024-10-15T21:36:52Z
dc.date.issued2021
dc.identifier.issn0043-1648
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85108293625&doi=10.1016%2fj.wear.2021.203958&partnerID=40&md5=62cc9c59c84875fbbbaef342f4b62a36
dc.identifier.urihttps://repositorio.maua.br/handle/MAUA/1386
dc.description.abstractThe design of powder metallurgy components made of advanced ceramic materials demands information on mechanical behaviour, which affects lifetime, wear and friction performances. In sintered materials, microstructure plays a significant role in the final properties and is directly dependent on sintering cycle variables (temperature, pressure and time). Niobium carbide (NbC) presents high hardness and melting point, being a potential candidate to be used as bulk material and coating for industrial wear resistance applications. However, this carbide presents low sinterability and its hardness seems to be influenced by stoichiometry. Although the mechanical properties of NbC have been evaluated, few studies have been conducted to investigate the wear behaviour of NbC and even fewer considered the micro-scale level. In this work, experimental analyses of instrumented indentation and micro-wear were applied to evaluate a Spark Plasma Sintered (SPS) Niobium Carbide. The SPS sintering technique was used to achieve densification above those from traditional sintering techniques. Specific mechanical characteristics were obtained from load/displacement curves using instrumented indentation, while the wear behaviour was analysed using a micro-scale reciprocating test. Results showed that the relationship E/H seems to be the main factor governing tribological properties in this study. The wear and friction behaviours were also reproduced by numerical analysis, allowing further understanding on the effect of different features on the system performance. © 2021 Elsevier B.V.en
dc.description.sponsorshipAustrian COMET-Program,
dc.description.sponsorshipPetrobras S.A.
dc.description.sponsorshipPetrobras S.A. IPT
dc.description.sponsorshipFAPESP
dc.description.sponsorshipCAPES
dc.description.sponsorshipCNPq
dc.description.sponsorshipÖsterreichische Forschungsförderungsgesellschaft, FFG
dc.description.sponsorshipÖterreichisches Exzellenzzentrum für Tribologie, AC2T
dc.languageInglêspt_BR
dc.publisherElsevier Ltden
dc.relation.ispartofWear
dc.rightsAcesso Restrito
dc.sourceScopusen
dc.subjectHardnessen
dc.subjectMicrostructureen
dc.subjectNiobium carbideen
dc.subjectNumerical simulationen
dc.subjectSpark plasma sintering (SPS)en
dc.subjectWearen
dc.subjectBoron carbideen
dc.subjectCeramic materialsen
dc.subjectFrictionen
dc.subjectIndentationen
dc.subjectNiobium compoundsen
dc.subjectPowder metallurgyen
dc.subjectSpark plasma sinteringen
dc.subjectTribologyen
dc.subjectWear resistanceen
dc.subjectAdvanced Ceramicsen
dc.subjectInstrumented indentationen
dc.subjectMechanical behavioren
dc.subjectPropertyen
dc.subjectSintering densificationen
dc.subjectTribological behaviouren
dc.subjectWear and frictionen
dc.subjectWear behaviorsen
dc.subjectWear of materialsen
dc.titleEffect of sintering densification on micro-scale mechanical and tribological behaviour of niobium carbideen
dc.typeArtigo de Periódicopt_BR
dc.identifier.doi10.1016/j.wear.2021.203958
dc.description.affiliationPolytechnic School, University of São Paulo – USP, São Paulo, Brazil
dc.description.affiliationAC2T Research GmbH, Wiener Neustadt, Austria
dc.description.affiliationDepartment of Mechanical Engineering, Centro Universitário do Instituto Mauá de Tecnologia, São Caetano do Sul, SP, Brazil
dc.identifier.scopus2-s2.0-85108293625
dc.citation.volume482-483


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