Lanigan, J, Zhao, H, Morina, A et al. (1 more author) (2015) Tribochemistry of silicon and oxygen doped, hydrogenated Diamond-like Carbon in fully-formulated oil against low additive oil. Tribology International, 82 (Part B). 431 - 442. ISSN 0301-679X
Abstract
Diamond-like Carbon (DLC) coatings are increasingly used to reduce wear and lower friction in many applications. Doped DLCs are being produced with the goal of further enhancing the friction and wear profile as well as increasing the coating reliability. Silicon is often incorporated into DLC as it is known to affect the sp2/sp3 ratio which in turn can affect the hardness of the film. It can also improve adhesion of the DLC coating to the substrate and lower internal stress. In this study, investigations into the wear behaviour, tribochemistry and oil-formulation dependence of Si, O-doped DLC (Si-DLC) were conducted. The oxidative stability of Si-DLC was also examined. Silicon-doped DLC is able to form a protective tribofilm when a fully-formulated lubricant is used. The tribofilm is composed of S, P, Ca and Zn which are widely recognised as being important to wear reduction. A mechanism of wear repression facilitated by oil additives is proposed.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015. Elsevier. Uploaded in accordance with the publisher's self-archiving policy. NOTICE: this is the author’s version of a work that was accepted for publication in Tribology International. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Tribology International, 82,(2015) DOI:10.1016/j.triboint.2014.03.019 |
Keywords: | DLC-coatings; boundary-lubrication; oil additives; wear mechanism |
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) |
Depositing User: | Symplectic Publications |
Date Deposited: | 18 May 2015 11:33 |
Last Modified: | 16 Nov 2016 07:40 |
Published Version: | http://dx.doi.org/10.1016/j.triboint.2014.03.019 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.triboint.2014.03.019 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:83844 |