Tribological behaviour of W-S-C coated ceramics in a vacuum environment
Tribological behaviour of W-S-C coated ceramics in a vacuum environment
Sliding of the WSC coated ceramics (ball-on-disc configuration) was investigated under vacuum condition at multiple loads (2–18 N), and each experiment was followed by detailed Raman and SEM analysis of both the wear track and the wear scar (on the ball). Main finding is that under low loads (up to 8 N), wear is polishing, carbon structure becomes more ordered and the number of WS2 monolayer increases. Above 8 N, wear transitions into an abrasive regime interrupting the aforementioned processes increasing both friction and wear. Furthermore, roles of the coating components were differentiated: WS component is responsible for the low friction, whereas the carbon part is responsible for excellent wear properties.
TMD Vacuum Friction Wear
Simonovic, K.
c5ae0e3f-5617-41f3-a2bd-bd218ec14e78
Vitu, T.
49ae56d2-cce3-44eb-95e6-728a76c423d1
Cammarata, A.
b3bbc67e-d3f7-4c4b-b1c4-5c43946adc21
Cavaleiro, A.
114e42eb-7255-47ef-834d-0546d56d3171
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
2 December 2021
Simonovic, K.
c5ae0e3f-5617-41f3-a2bd-bd218ec14e78
Vitu, T.
49ae56d2-cce3-44eb-95e6-728a76c423d1
Cammarata, A.
b3bbc67e-d3f7-4c4b-b1c4-5c43946adc21
Cavaleiro, A.
114e42eb-7255-47ef-834d-0546d56d3171
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Simonovic, K., Vitu, T., Cammarata, A., Cavaleiro, A. and Polcar, T.
(2021)
Tribological behaviour of W-S-C coated ceramics in a vacuum environment.
Tribology International, 167, [107375].
(doi:10.1016/j.triboint.2021.107375).
Abstract
Sliding of the WSC coated ceramics (ball-on-disc configuration) was investigated under vacuum condition at multiple loads (2–18 N), and each experiment was followed by detailed Raman and SEM analysis of both the wear track and the wear scar (on the ball). Main finding is that under low loads (up to 8 N), wear is polishing, carbon structure becomes more ordered and the number of WS2 monolayer increases. Above 8 N, wear transitions into an abrasive regime interrupting the aforementioned processes increasing both friction and wear. Furthermore, roles of the coating components were differentiated: WS component is responsible for the low friction, whereas the carbon part is responsible for excellent wear properties.
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Accepted/In Press date: 21 November 2021
e-pub ahead of print date: 27 November 2021
Published date: 2 December 2021
Additional Information:
Funding Information:
This work has been supported by the project “International Mobility of the scientific workers MSCA-IF III at Czech Technical University in Prague, Grant No: CZ.02.2.69/0.0/0.0/19_074/0016255 ”. CzechNanoLab project LM2018110 funded by MEYS CR is gratefully acknowledged for the financial support of the measurements/sample fabrication at CEITEC Nano Research Infrastructure. This work has been done with the support of the project “ Centre of Advanced Applied Sciences – CAAS ” No. CZ.02.1.01/0.0/0.0/16-019/0000778 . This work was supported by the Ministry of Education , Youth and Sports of the Czech Republic through the e-INFRA CZ ( ID:90140 ). Authors acknowledge FCT under the project: CEMMPRE—ref. “ UIDB/00285/2020 ”
Keywords:
TMD Vacuum Friction Wear
Identifiers
Local EPrints ID: 485253
URI: http://eprints.soton.ac.uk/id/eprint/485253
ISSN: 0301-679X
PURE UUID: dbe124e1-bd33-40e2-8ded-2ae0ced3638d
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Date deposited: 01 Dec 2023 17:49
Last modified: 18 Mar 2024 03:19
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Author:
K. Simonovic
Author:
T. Vitu
Author:
A. Cammarata
Author:
A. Cavaleiro
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