Tribological properties of Mo-S-C coating deposited by pulsed d.c. magnetron sputtering

T. Vitu; T. Huminiuc; G. Doll; E. Bousser; A. Matthews; T. Polcar

doi:10.1016/j.wear.2021.203939

Tribological properties of Mo-S-C coating deposited by pulsed d.c. magnetron sputtering

T. Vitu^*, T. Huminiuc, G. Doll, E. Bousser, A. Matthews, T. Polcar

^*Corresponding author for this work

School of Mathematics & Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Transition metal dichalcogenides such as MoS₂ are widely used as solid lubricants for vacuum applications. On the other hand, diamond-like carbon coatings exhibit excellent sliding properties in the ambient environment. Our Mo-S-C coatings deposited by pulsed d.c. sputtering combine both structures to obtain stable properties regardless of the testing conditions. The coatings were studied using HR-TEM and Raman spectroscopy, revealing amorphous nature of the coating. The tribological properties were evaluated by pin-on-disc method. The results showed high lubrication ability in all the testing conditions. HR-TEM and Raman spectroscopy were employed to show the structural characteristics of the wear traces. Our results indicate that the low-friction effect should be attributed to carbon structure re-arrangement since expected wear-induced MoS₂ formation was not observed.

Original language	English
Article number	203939
Number of pages	10
Journal	Wear
Volume	480-481
Early online date	21 May 2021
DOIs	https://doi.org/10.1016/j.wear.2021.203939
Publication status	Published - 15 Sept 2021

Keywords

Mo-S-C
Raman spectroscopy
TMD
Tribology

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10.1016/j.wear.2021.203939

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@article{e508ff7c93a5406aa4cfa927c46d3c7d,

title = "Tribological properties of Mo-S-C coating deposited by pulsed d.c. magnetron sputtering",

abstract = "Transition metal dichalcogenides such as MoS2 are widely used as solid lubricants for vacuum applications. On the other hand, diamond-like carbon coatings exhibit excellent sliding properties in the ambient environment. Our Mo-S-C coatings deposited by pulsed d.c. sputtering combine both structures to obtain stable properties regardless of the testing conditions. The coatings were studied using HR-TEM and Raman spectroscopy, revealing amorphous nature of the coating. The tribological properties were evaluated by pin-on-disc method. The results showed high lubrication ability in all the testing conditions. HR-TEM and Raman spectroscopy were employed to show the structural characteristics of the wear traces. Our results indicate that the low-friction effect should be attributed to carbon structure re-arrangement since expected wear-induced MoS2 formation was not observed.",

keywords = "Mo-S-C, Raman spectroscopy, TMD, Tribology",

author = "T. Vitu and T. Huminiuc and G. Doll and E. Bousser and A. Matthews and T. Polcar",

note = "Funding Information: This work was funded by OPVVV grant Novel nanostructures for engineering applications No. CZ.02.1.01/0.0/0.0/16_026/0008396 . Part of the work was carried out with the support of CEITEC Nano Research Infrastructure (ID LM2015041, MEYS CR, 2016–2019), CEITEC Brno University of Technology . E. Bousser would like to acknowledge the support of the Natural Sciences and Engineering Research Council of Canada through the Postdoctoral Fellowship program. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = sep,

day = "15",

doi = "10.1016/j.wear.2021.203939",

language = "English",

volume = "480-481",

journal = "Wear",

issn = "0043-1648",

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TY - JOUR

T1 - Tribological properties of Mo-S-C coating deposited by pulsed d.c. magnetron sputtering

AU - Vitu, T.

AU - Huminiuc, T.

AU - Doll, G.

AU - Bousser, E.

AU - Matthews, A.

AU - Polcar, T.

N1 - Funding Information: This work was funded by OPVVV grant Novel nanostructures for engineering applications No. CZ.02.1.01/0.0/0.0/16_026/0008396 . Part of the work was carried out with the support of CEITEC Nano Research Infrastructure (ID LM2015041, MEYS CR, 2016–2019), CEITEC Brno University of Technology . E. Bousser would like to acknowledge the support of the Natural Sciences and Engineering Research Council of Canada through the Postdoctoral Fellowship program. Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/9/15

Y1 - 2021/9/15

N2 - Transition metal dichalcogenides such as MoS2 are widely used as solid lubricants for vacuum applications. On the other hand, diamond-like carbon coatings exhibit excellent sliding properties in the ambient environment. Our Mo-S-C coatings deposited by pulsed d.c. sputtering combine both structures to obtain stable properties regardless of the testing conditions. The coatings were studied using HR-TEM and Raman spectroscopy, revealing amorphous nature of the coating. The tribological properties were evaluated by pin-on-disc method. The results showed high lubrication ability in all the testing conditions. HR-TEM and Raman spectroscopy were employed to show the structural characteristics of the wear traces. Our results indicate that the low-friction effect should be attributed to carbon structure re-arrangement since expected wear-induced MoS2 formation was not observed.

AB - Transition metal dichalcogenides such as MoS2 are widely used as solid lubricants for vacuum applications. On the other hand, diamond-like carbon coatings exhibit excellent sliding properties in the ambient environment. Our Mo-S-C coatings deposited by pulsed d.c. sputtering combine both structures to obtain stable properties regardless of the testing conditions. The coatings were studied using HR-TEM and Raman spectroscopy, revealing amorphous nature of the coating. The tribological properties were evaluated by pin-on-disc method. The results showed high lubrication ability in all the testing conditions. HR-TEM and Raman spectroscopy were employed to show the structural characteristics of the wear traces. Our results indicate that the low-friction effect should be attributed to carbon structure re-arrangement since expected wear-induced MoS2 formation was not observed.

KW - Mo-S-C

KW - Raman spectroscopy

KW - TMD

KW - Tribology

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UR - https://eprints.soton.ac.uk/454816/

U2 - 10.1016/j.wear.2021.203939

DO - 10.1016/j.wear.2021.203939

M3 - Article

AN - SCOPUS:85106611772

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VL - 480-481

JO - Wear

JF - Wear

M1 - 203939

ER -

Tribological properties of Mo-S-C coating deposited by pulsed d.c. magnetron sputtering

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Keywords

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