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Structural reorientation and compaction of porous MoS₂ coatings during wear testing

dc.date.accessioned2023-08-02T11:09:11Z
dc.date.available2023-08-02T11:09:11Z
dc.date.issued2022-04-02
dc.identifierdoi:10.17170/kobra-202308018547
dc.identifier.urihttp://hdl.handle.net/123456789/14968
dc.description.sponsorshipThis research was funded by the German Research Foundation (DFG) Priority Program SPP 2074 “Fluid-free lubrication systems with high mechanical loads”, grant number (GEPRIS) 407707942 (ME 4368/7-1, ME 2670/8-1 and TR 1043/7-1).eng
dc.language.isoeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectMoS₂eng
dc.subjecttribologyeng
dc.subjectwear testingeng
dc.subjecttransmission electron microscopyeng
dc.subjectnanoindentationeng
dc.subject.ddc600
dc.subject.ddc660
dc.titleStructural reorientation and compaction of porous MoS₂ coatings during wear testingeng
dc.typeAufsatz
dcterms.abstractIndustrial upscaling frequently results in a different coating microstructure than the laboratory prototypes presented in the literature. Here, we investigate the wear behavior of physical vapor deposited (PVD) MoS2 coatings: A dense, nanocrystalline MoS2 coating, and a porous, prismatic-textured MoS2 coating. Transmission electron microscopy (TEM) investigations before and after wear testing evidence a crystallographic reorientation towards a basal texture in both samples. A basal texture is usually desirable due to its low-friction properties. This favorable reorientation is associated to a tribological compaction of the porous specimens. Following running-in, sliding under high contact pressure ultimately leads to a wear rate as small as for an ideal grown bulk MoS2 single crystal grown by chemical vapor deposition (CVD). This suggests that the imperfections of industrial grade MoS2 coatings can be remediated by a suitable pretreatment.eng
dcterms.accessRightsopen access
dcterms.creatorKrauß, Sebastian
dcterms.creatorSeynstahl, Armin
dcterms.creatorTremmel, Stephan
dcterms.creatorMeyer, Bernd
dcterms.creatorBitzek, Erik
dcterms.creatorGöken, Mathias
dcterms.creatorYokosawa, Tadahiro
dcterms.creatorZubiri, Benjamin Apeleo
dcterms.creatorSpiecker, Erdmann
dcterms.creatorMerle, Benoit
dc.relation.doidoi:10.1016/j.wear.2022.204339
dc.relation.projectid407707942
dc.subject.swdMolybdändisulfidger
dc.subject.swdTribologieger
dc.subject.swdVerschleißprüfungger
dc.subject.swdDurchstrahlungselektronenmikroskopieger
dc.subject.swdNanometerbereichger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:1873-2577
dcterms.source.journalWeareng
dcterms.source.volumeVolume 500-501
kup.iskupfalse
dcterms.source.articlenumber204339


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