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Microstructure, Mechanical Properties and Tribological Behavior of Magnetron-Sputtered MoS₂ Solid Lubricant Coatings Deposited under Industrial Conditions

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00006480
URN to cite this document: urn:nbn:de:bvb:703-epub-6480-7

Title data

Seynstahl, Armin ; Krauß, Sebastian ; Bitzek, Erik ; Meyer, Bernd ; Merle, Benoit ; Tremmel, Stephan:
Microstructure, Mechanical Properties and Tribological Behavior of Magnetron-Sputtered MoS₂ Solid Lubricant Coatings Deposited under Industrial Conditions.
In: Coatings. Vol. 11 (15 April 2021) Issue 4 . - No. 455.
ISSN 2079-6412
DOI der Verlagsversion: https://doi.org/10.3390/coatings11040455

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Abstract

Depositing MoS2 coatings for industrial applications involves rotating the samples during the PVD magnetron sputtering process. Here, we show that a 3-fold substrate rotation, along a large target–substrate distance given by the deposition unit, introduces porosity inside the coatings. The mechanical properties and wear behavior strongly correlate with the degree of porosity, which, in turn, depends on the temperature and the rotational speed of the substrate. Ball-on-disk tests and nanoindentation wear experiments show a consistent change in tribological behavior; first, a compaction of the porous structure dominates, followed by wear of the compacted material. Compaction was the main contributor to the volume loss during the running-in process. Compared to a dense coating produced without substrate rotation, the initially porous coatings showed lower hardness and a distinct running-in behavior. Tribological lifetime experiments showed good lubrication performance after compaction

Further data

Item Type: Article in a journal
Keywords: PVD; MoS2; friction; wear mechanisms; nanoindentation; microstruct
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Institutions of the University: Faculties > Faculty of Engineering Science > Former Professors > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing. Frank Rieg
Faculties > Faculty of Engineering Science > Chair Engineering Design and CAD > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing Stephan Tremmel
Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Engineering Design and CAD
Faculties > Faculty of Engineering Science > Former Professors
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-6480-7
Date Deposited: 08 Jul 2022 05:13
Last Modified: 08 Jul 2022 05:14
URI: https://epub.uni-bayreuth.de/id/eprint/6480

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