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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Surface and Interfac...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Surface and Interface Analysis
Article . 2023 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
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Molybdenum disulfide/carbon multilayer films achieve ultra‐low wear in vacuum

Authors: Zhiqiang Cheng; Xiaoli Wei; Kaixiong Gao; Chunyan Li;

Molybdenum disulfide/carbon multilayer films achieve ultra‐low wear in vacuum

Abstract

Although diamond‐like carbon (DLC) films are known for their low friction and wear properties in atmospheric environments, they commonly experience failure in vacuum environments. On the other hand, MoS 2 exhibits a low friction coefficient under vacuum conditions, but its columnar structure limits its load‐bearing capacity and results in high wear rates. In this study, we prepared MoS 2 /DLC multilayer films using a high‐power impulse magnetron sputtering (HIPIMS) technique and examined the composition, bonding structure, mechanical properties, and frictional wear of the resulting films. The study findings revealed that the multilayer film exhibits a significantly low coefficient of friction (0.04), particularly in vacuum conditions (5 × 10 −3 Pa). Remarkably, compared to the pure MoS 2 film, the wear rate of the multilayer film is reduced by two orders of magnitude, wear rate as low as 3.6 × 10 −9 mm 3 /Nm. Additionally, the DLC component enhances the hardness and reduces the wear rate of the multilayer film. Furthermore, the use of nanometer thickness (17 nm) allows for the incorporation of more MoS 2 and DLC layers, which promotes the formation of graphene bands and further reduces the friction coefficient and wear rate. Our findings open new avenues for the application of MoS 2 and DLC in vacuum environments.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Top 10%
Average
Top 10%
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