The Use of Triboemission Imaging and Charge Measurements to Study DLC Coating Failure
| Autor: | Tom Reddyhoff, Julian Le Rouzic, Alessandra Ciniero |
|---|---|
| Přispěvatelé: | Engineering & Physical Science Research Council (EPSRC) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
wear
Materials science Diamond-like carbon 02 engineering and technology Electron engineering.material Electrometer 01 natural sciences 0203 mechanical engineering Coating diamond-like-carbon 0103 physical sciences Materials Chemistry Surface charge Composite material Triboelectric effect 010302 applied physics Microchannel tribocharging Surfaces and Interfaces triboemission coating-failure Surfaces Coatings and Films 020303 mechanical engineering & transports lcsh:TA1-2040 Torr engineering lcsh:Engineering (General). Civil engineering (General) |
| Zdroj: | Coatings; Volume 7; Issue 8; Pages: 129 Coatings, Vol 7, Iss 8, p 129 (2017) |
| ISSN: | 2079-6412 |
| DOI: | 10.3390/coatings7080129 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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