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

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

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 condi...

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Bibliographic Details
Main Authors: Alessandra Ciniero, Julian Le Rouzic, Tom Reddyhoff
Format: Article
Language:English
Published: MDPI AG 2017-08-01
Series:Coatings
Subjects:
triboemission
tribocharging
coating-failure
wear
diamond-like-carbon
Online Access:https://www.mdpi.com/2079-6412/7/8/129
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spelling doaj-afb085896646441d839515a85bb1f8572020-11-24T21:04:31ZengMDPI AGCoatings2079-64122017-08-017812910.3390/coatings7080129coatings7080129The Use of Triboemission Imaging and Charge Measurements to Study DLC Coating FailureAlessandra Ciniero0Julian Le Rouzic1Tom Reddyhoff2Tribology Group, Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UKInstitut P’, CNRS, Université de Poitiers, ISAE-ENSMA, F-86962 Futuroscope Chasseneuil, FranceTribology Group, Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UKWe 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.https://www.mdpi.com/2079-6412/7/8/129triboemissiontribochargingcoating-failureweardiamond-like-carbon
collection DOAJ
language English
format Article
sources DOAJ
author Alessandra Ciniero
Julian Le Rouzic
Tom Reddyhoff
spellingShingle Alessandra Ciniero
Julian Le Rouzic
Tom Reddyhoff
The Use of Triboemission Imaging and Charge Measurements to Study DLC Coating Failure
Coatings
triboemission
tribocharging
coating-failure
wear
diamond-like-carbon
author_facet Alessandra Ciniero
Julian Le Rouzic
Tom Reddyhoff
author_sort Alessandra Ciniero
title The Use of Triboemission Imaging and Charge Measurements to Study DLC Coating Failure
title_short The Use of Triboemission Imaging and Charge Measurements to Study DLC Coating Failure
title_full The Use of Triboemission Imaging and Charge Measurements to Study DLC Coating Failure
title_fullStr The Use of Triboemission Imaging and Charge Measurements to Study DLC Coating Failure
title_full_unstemmed The Use of Triboemission Imaging and Charge Measurements to Study DLC Coating Failure
title_sort use of triboemission imaging and charge measurements to study dlc coating failure
publisher MDPI AG
series Coatings
issn 2079-6412
publishDate 2017-08-01
description 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.
topic triboemission
tribocharging
coating-failure
wear
diamond-like-carbon
url https://www.mdpi.com/2079-6412/7/8/129
work_keys_str_mv AT alessandraciniero theuseoftriboemissionimagingandchargemeasurementstostudydlccoatingfailure
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AT alessandraciniero useoftriboemissionimagingandchargemeasurementstostudydlccoatingfailure
AT julianlerouzic useoftriboemissionimagingandchargemeasurementstostudydlccoatingfailure
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