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Diamond-like carbon : a surface for extreme, high-wear environments
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Sharifi, N., Smith, H., Madden, D., Kehoe, T., Wu, G., Yang, L., Welbourn, R. J. L., Fernandez, E. G. and Clarke, S. M. (2024) Diamond-like carbon : a surface for extreme, high-wear environments. Langmuir, 40 (1). pp. 52-61. doi:10.1021/acs.langmuir.3c01438 ISSN 0743-7463.
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Official URL: http://dx.doi.org/10.1021/acs.langmuir.3c01438
Abstract
In this study, we present an in-depth characterization of a diamond-like carbon (DLC) film, using a range of techniques to understand the structure and chemistry of the film both in the interior and particularly at the DLC/air surface and DLC/liquid interface. The DLC film is found to be a combination of sp2 and sp3 carbon, with significant oxygen present at the surface. The oxygen seems to be present as OH groups, making the DLC somewhat hydrophilic. Quartz-Crystal Microbalance (QCM) isotherms and complementary neutron reflectivity data indicate significant adsorption of a model additive, bis(2-ethylhexyl) sulfosuccinate sodium salt (AOT) surfactant, onto the DLC from water solutions and indicate the adsorbed film is a bilayer. This initial study of the structure and composition of a model surfactant is intended to give a clearer insight into how DLC and additives function as antiwear systems.
Item Type: | Journal Article | |||||||||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | |||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Surfaces (Technology), Thin films, Protective coatings, Carbon | |||||||||||||||
Journal or Publication Title: | Langmuir | |||||||||||||||
Publisher: | American Chemical Society | |||||||||||||||
ISSN: | 0743-7463 | |||||||||||||||
Official Date: | 9 January 2024 | |||||||||||||||
Dates: |
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Volume: | 40 | |||||||||||||||
Number: | 1 | |||||||||||||||
Page Range: | pp. 52-61 | |||||||||||||||
DOI: | 10.1021/acs.langmuir.3c01438 | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||
Date of first compliant deposit: | 17 January 2024 | |||||||||||||||
Date of first compliant Open Access: | 18 January 2024 | |||||||||||||||
RIOXX Funder/Project Grant: |
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