Abstract
A medium pressure (5 kPa) dielectric barrier discharge operating in different atmospheres (air and argon) is used to develop a fast and easy way to remove adsorbed carbon contamination. Chemical and physical changes at the sample surface after plasma treatment are studied, making use of contact angle measurements, X-ray photoelectron spectroscopy analysis and atomic force microscopy measurements. The obtained results are compared with other chemical and thermal treatments typically used. This comparison shows that plasma treatment at medium pressure is able to remove up to 20 % more of the adsorbed carbon compared to the classical cleaning methods, while at the same time being less aggressive, leaving the sub-surface chemistry unchanged. Moreover, the analysis techniques give a fundamental insight in the reactions processes at the titanium surface when exposed to a medium pressure plasma.
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Acknowledgments
The research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Program (FP/2007-2013)/ERC Grant Agreement n. 279022. R. Morent acknowledges the support of the Research Foundation Flanders (FWO) for a postdoctoral fellowship.
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Cools, P., De Geyter, N., Vanderleyden, E. et al. Surface Analysis of Titanium Cleaning and Activation Processes: Non-thermal Plasma Versus Other Techniques. Plasma Chem Plasma Process 34, 917–932 (2014). https://doi.org/10.1007/s11090-014-9552-2
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DOI: https://doi.org/10.1007/s11090-014-9552-2