Datum
2022-04-02Autor
Krauß, SebastianSeynstahl, ArminTremmel, StephanMeyer, BerndBitzek, ErikGöken, MathiasYokosawa, TadahiroZubiri, Benjamin ApeleoSpiecker, ErdmannMerle, BenoitSchlagwort
600 Technik 660 Chemische Verfahrenstechnik, Technische Chemie MolybdändisulfidTribologieVerschleißprüfungDurchstrahlungselektronenmikroskopieNanometerbereichMetadata
Zur Langanzeige
Aufsatz
Structural reorientation and compaction of porous MoS₂ coatings during wear testing
Zusammenfassung
Industrial 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.
Zitierform
In: Wear Volume 500-501 (2022-04-02) eissn:1873-2577Förderhinweis
This 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).Zitieren
@article{doi:10.17170/kobra-202308018547,
author={Krauß, Sebastian and Seynstahl, Armin and Tremmel, Stephan and Meyer, Bernd and Bitzek, Erik and Göken, Mathias and Yokosawa, Tadahiro and Zubiri, Benjamin Apeleo and Spiecker, Erdmann and Merle, Benoit},
title={Structural reorientation and compaction of porous MoS₂ coatings during wear testing},
journal={Wear},
year={2022}
}
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2023-08-02T11:09:11Z 2023-08-02T11:09:11Z 2022-04-02 doi:10.17170/kobra-202308018547 http://hdl.handle.net/123456789/14968 This 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 Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ MoS₂ tribology wear testing transmission electron microscopy nanoindentation 600 660 Structural reorientation and compaction of porous MoS₂ coatings during wear testing Aufsatz Industrial 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. open access Krauß, Sebastian Seynstahl, Armin Tremmel, Stephan Meyer, Bernd Bitzek, Erik Göken, Mathias Yokosawa, Tadahiro Zubiri, Benjamin Apeleo Spiecker, Erdmann Merle, Benoit doi:10.1016/j.wear.2022.204339 407707942 Molybdändisulfid Tribologie Verschleißprüfung Durchstrahlungselektronenmikroskopie Nanometerbereich publishedVersion eissn:1873-2577 Wear Volume 500-501 false 204339
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