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Argon versus nitrogen ion beam assisted deposition of amorphous carbon and carbon–nitrogen films on aluminum for protection against aqueous corrosion

Ensinger, W. and Lensch, O. and Sittner, F. and Knecht, J. and Volz, K. and Matsutani, T. and Kiuchi, M. (2003):
Argon versus nitrogen ion beam assisted deposition of amorphous carbon and carbon–nitrogen films on aluminum for protection against aqueous corrosion.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, pp. 334-338, 206, ISSN 0168583X, [Online-Edition: http://dx.doi.org/10.1016/S0168-583X(03)00757-2],
[Article]

Abstract

Ion beam assisted deposition has been used to deposit amorphous C and CNx films on aluminum at room temperature by electron beam evaporation of graphite under concurrent ion beam irradiation with two different ions, argon and nitrogen. The corrosion properties of the films in chloride-containing water were examined by electrochemical polarization techniques. The results show that argon ion bombardment is more effective than nitrogen ion bombardment. The aluminum dissolution currents are higher when nitrogen ions are used in comparison to argon ions. Apparently, interface mixing which leads to a heterogeneous ternary Al–C–N phase is detrimental to the corrosion protection effect of the thin film.

Item Type: Article
Erschienen: 2003
Creators: Ensinger, W. and Lensch, O. and Sittner, F. and Knecht, J. and Volz, K. and Matsutani, T. and Kiuchi, M.
Title: Argon versus nitrogen ion beam assisted deposition of amorphous carbon and carbon–nitrogen films on aluminum for protection against aqueous corrosion
Language: English
Abstract:

Ion beam assisted deposition has been used to deposit amorphous C and CNx films on aluminum at room temperature by electron beam evaporation of graphite under concurrent ion beam irradiation with two different ions, argon and nitrogen. The corrosion properties of the films in chloride-containing water were examined by electrochemical polarization techniques. The results show that argon ion bombardment is more effective than nitrogen ion bombardment. The aluminum dissolution currents are higher when nitrogen ions are used in comparison to argon ions. Apparently, interface mixing which leads to a heterogeneous ternary Al–C–N phase is detrimental to the corrosion protection effect of the thin film.

Journal or Publication Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume: 206
Publisher: Elsevier
Uncontrolled Keywords: Ion beam assisted deposition, Aluminum, Carbon–nitrogen films, Amorphous carbon, Corrosion
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 15 Nov 2012 09:36
Official URL: http://dx.doi.org/10.1016/S0168-583X(03)00757-2
Identification Number: doi:10.1016/S0168-583X(03)00757-2
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