Ultra-low friction coefficient in alumina-silicon nitride pair lubricated with water

dc.creatorFerreira, Vanderlei
dc.creatorYoshimura, Humberto Naoyuki
dc.creatorSinatora, Amilton
dc.date.accessioned2013-10-10T14:26:36Z
dc.date.accessioned2018-07-04T16:20:31Z
dc.date.available2013-10-10T14:26:36Z
dc.date.available2018-07-04T16:20:31Z
dc.date.created2013-10-10T14:26:36Z
dc.date.issued2012
dc.identifierWEAR, LAUSANNE, v. 296, n. 1-2, pp. 656-659, AUG, 2012
dc.identifier0043-1648
dc.identifierhttp://www.producao.usp.br/handle/BDPI/34092
dc.identifier10.1016/j.wear.2012.07.030
dc.identifierhttp://dx.doi.org/10.1016/j.wear.2012.07.030
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1634599
dc.description.abstractIn a ball-on-disc wear test, an alumina ceramic body sliding against a silicon nitride ceramic body in water achieved an ultra-low friction coefficient (ULFC) of 0.004. The profilometer and EDX measurements indicated that the ULFC regime in this unmated Al2O3-Si3N4 pair was achieved because of the formation of a flat and smooth interface of nanometric roughness, which favored the hydrodynamic lubrication. The triboreactions formed silicon and aluminum hydroxides which contributed to decrease roughness and shear stress at the contact interface. This behavior enables the development of low energy loss water-based tribological systems using oxide ceramics. 13 2012 Elsevier B.V. All rights reserved.
dc.languageeng
dc.publisherELSEVIER SCIENCE SA
dc.publisherLAUSANNE
dc.relationWEAR
dc.rightsCopyright ELSEVIER SCIENCE SA
dc.rightsrestrictedAccess
dc.subjectSLIDING FRICTION
dc.subjectSURFACE TOPOGRAPHY
dc.subjectENGINEERING CERAMICS
dc.subjectPROFILOMETRY
dc.subjectSURFACE ANALYSIS
dc.titleUltra-low friction coefficient in alumina-silicon nitride pair lubricated with water
dc.typeArtículos de revistas


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