Liu, J, Sui, X, Xu, S et al. (2 more authors) (2018) Tailoring the lubricative and electroconductive bifunction properties of NbSe₂ film by controlling the sputtering plasma. Applied Surface Science, 455. pp. 1161-1170. ISSN 0169-4332
Abstract
Transition metal dichalcogenides are well known for their outstanding lubricating property. The special one of the family members, metallic NbSe₂ film, was deposited by sputtering in this study. The microstructure, electrical conductivity and tribological properties of NbSe₂ films were investigated by energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), grazing incidence X-ray diffraction (GIXRD), high resolution transmission electron microscopy (HRTEM), four-probe meter and ball-on-disk tribometer. The results showed that the microstructure of NbSe₂ film could be tailored by simply controlling the sputtering power. The suitable power of 180 W promoted to crystal growth of NbSe₂ film with edge plane orientation and formation of columnar structure, which possessed low static contact electrical resistivity and good adhesive strength on steel substrate. Both the dense and loose films made by lower and higher power, respectively, exhibited the downtrend of contact electroconductive and lubricative properties. The mechanism was discussed in terms of densification and crystallinity of films and transfer film formed on counterpart surface after sliding friction process. This novel NbSe₂ film with low friction and dynamic contact electrical resistance behaviors was expected to a more feasible candidate for lubricative and electroconductive bifunctional material application.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 Published by Elsevier B.V. This is an author produced version of a paper published in Applied Surface Science. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | NbSe₂ film; Nanostructure; Bifunction; Lubrication; Electroconductivity; Sputtering plasma |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Functional Surfaces (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 09 Jul 2018 10:34 |
Last Modified: | 12 Jun 2019 00:43 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.apsusc.2018.06.096 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:133002 |