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Open AccessArticle

The Use of Triboemission Imaging and Charge Measurements to Study DLC Coating Failure

1
Tribology Group, Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK
2
Institut P’, CNRS, Université de Poitiers, ISAE-ENSMA, F-86962 Futuroscope Chasseneuil, France
*
Authors to whom correspondence should be addressed.
Coatings 2017, 7(8), 129; https://doi.org/10.3390/coatings7080129
Received: 26 July 2017 / Revised: 16 August 2017 / Accepted: 17 August 2017 / Published: 20 August 2017
(This article belongs to the Special Issue Manufacturing and Surface Engineering)
We present a study on the simultaneous evolution of the electron emission and surface charge accumulation that occurs during scratching tests in order to monitor coating failure. Steel discs coated with a diamond-like-carbon (DLC) film were scratched in both vacuum (~10−5 Torr) and atmospheric conditions, with electron emission and surface charge being measured by a system of microchannel plates and an electrometer, respectively. The results highlight a positive correlation between emission intensity values, surface charge measurements and surface damage topography, suggesting the effective use of these techniques to monitor coating wear in real time. View Full-Text
Keywords: triboemission; tribocharging; coating-failure; wear; diamond-like-carbon triboemission; tribocharging; coating-failure; wear; diamond-like-carbon
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MDPI and ACS Style

Ciniero, A.; Le Rouzic, J.; Reddyhoff, T. The Use of Triboemission Imaging and Charge Measurements to Study DLC Coating Failure. Coatings 2017, 7, 129.

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  • Supplementary File 1:

    ZIP-Document (ZIP, 5687 KB)

  • Externally hosted supplementary file 1
    Doi: 10.1016/j.wear.2017.01.013
    Description: Electron emission from alumina specimen
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