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dc.contributor.advisorFernández Pérez, Josefa
dc.contributor.advisorLópez Iglesias, Enriqueta
dc.contributor.authorNasser, Khodor
dc.date.accessioned2022-05-30T12:08:16Z
dc.date.issued2022
dc.identifier.urihttp://hdl.handle.net/10347/28749
dc.description.abstractThis Doctoral Thesis presents new designed nanolubricants as potential substitutes of conventional lubricants. Hexagonal boron nitride nanoparticles, graphene nanoplatelets, iron oxide nanoparticles (synthetized from iron mine sludge), three phosphonium ionic liquids and two polyalphaolefin base oils (PAO32 and PAO10) were the materials selected. The techniques used in the characterization of nanoparticles, base oil, ionic liquids, and the worn surfaces from the tribological tests were Raman, SEM, FTIR, HRTEM, XRD or 3D profilometry. Viscosity, density, viscosity index, stability and tribological behavior (friction and wear) of designed nanolubricants were studied. Most of them improved the overall properties of PAO32 40 % reduction in friction and 99 % in wear being stable up to 240 days.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectTribology
dc.subjectLubricants
dc.subjectNanoadditives
dc.subjectThermophysical Properties
dc.subjectIonic Liquids
dc.subjectHexagonal Boron Nitride
dc.subjectGraphene
dc.subject.classificationMaterias::Investigación::22 Física::2205 Mecánica::220505 Fricción
dc.subject.classificationMaterias::Investigación::22 Física::2211 Física del estado sólido::221130 Tribología
dc.subject.classificationMaterias::Investigación::33 Ciencias tecnológicas::3321 Tecnología del carbón y del petróleo::332106 Aceite y grasa lubricantes
dc.titleSynergistic Effects of Nanoparticles and Ionic Liquids as Hybrid Lubricant Additives
dc.typeinfo:eu-repo/semantics/doctoralThesis
dc.description.embargo2023-04-29
dc.rights.accessrightsinfo:eu-repo/semantics/embargoedAccess
dc.contributor.affiliationUniversidade de Santiago de Compostela. Escola de Doutoramento Internacional (EDIUS)
dc.contributor.affiliationUniversidade de Santiago de Compostela. Programa de Doutoramento en Enxeñaría Termodinámica de Fluídos


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