Controlling the structural, mechanical and frictional properties of MoSx coatings by high-power impulse magnetron sputtering

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dc.contributor.authorKokalj, David
dc.contributor.authorDebus, Jörg
dc.contributor.authorStangier, Dominic
dc.contributor.authorMoldenhauer, Henning
dc.contributor.authorNikolov, Alexander
dc.contributor.authorWittig, Alexandra
dc.contributor.authorBrümmer, Andreas
dc.contributor.authorTillmann, Wolfgang
dc.date.accessioned2020-08-13T13:02:30Z
dc.date.available2020-08-13T13:02:30Z
dc.date.issued2020-08-03
dc.description.abstractTribology, as the science and technology of interacting surfaces, typically relies on liquid lubricants which reduce friction and wear. For environmentally friendly tribological purposes and applications requiring a liquid-free performance, solid lubricants, such as MoS2 coatings, play an essential role. It is crucial to understand the interplay between the parameters of the coating synthesis and the characteristics of the coating. The impact of the deposition parameters on the structural, mechanical and frictional properties of MoSx thin films, which are synthesized by high-power impulse magnetron sputtering, are studied. The morphology, topography and stoichiometry (2.02 < x < 2.22) of the films are controlled by, in particular, the bias-voltage and heating power applied during the sputtering process. In combination with a low pulse frequency the hardness and elastic stiffness of the MoSx films are enhanced up to 2 and 90 GPa, respectively. This enhancement is assigned to a shortening of the Mo-S bonding lengths and a strengthening in the interatomic coupling as well as to a formation of small-sized crystallites at the surface. The friction coefficient reduces to µ = 0.10 for films with an initial (100) orientation and the mean roughness of the MoSx films decreases below 15 nm by shortening the cathode pulses.en
dc.identifier.urihttp://hdl.handle.net/2003/39235
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-21152
dc.language.isoende
dc.relation.ispartofseriesCoatings;10(8)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectMolybdenum disulfideen
dc.subjectHigh-power impulse magnetron sputteringen
dc.subjectThin filmsen
dc.subjectFrictionen
dc.subjectInelastic light scatteringen
dc.subject.ddc620
dc.subject.ddc670
dc.subject.rswkMolybdände
dc.subject.rswkHochleistungsimpulsmagnetronsputternde
dc.subject.rswkDünne Schichtde
dc.subject.rswkReibungde
dc.subject.rswkDynamische Lichtstreuungde
dc.titleControlling the structural, mechanical and frictional properties of MoSx coatings by high-power impulse magnetron sputteringen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsopen access
eldorado.secondarypublicationtruede
eldorado.secondarypublication.primarycitationKokalj, D.; Debus, J.; Stangier, D.; Moldenhauer, H.; Nikolov, A.; Wittig, A.; Brümmer, A.; Tillmann, W. Controlling the Structural, Mechanical and Frictional Properties of MoSx Coatings by High-Power Impulse Magnetron Sputtering. Coatings 2020, 10, 755.de
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.3390/coatings10080755de

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