Sittner, F. ; Enders, B. ; Jungclas, H. ; Ensinger, W. (2002)
Corrosion properties of ion beam modified fullerene thin films on iron substrates.
In: Surface and Coatings Technology, 158-159
doi: 10.1016/S0257-8972(02)00279-7
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The corrosion behavior of fullerene coated iron samples was investigated by using electrochemical techniques. Fullerene was deposited on iron substrates via thermal evaporation under high vacuum conditions. Subsequent sample preparation included heat treatment as well as Ar+ ion irradiation under various conditions, which were carried out to modify the fullerene coatings. Changes in the structure of the films due to the treatment were analyzed by Raman spectroscopy. To reveal the samples’ corrosion behavior, cyclovoltammetric measurements were performed in a weakly acidic aqueous medium particularly with regard to possible corrosion protective properties. As the results show, Ar-ion treatment of the fullerene films leads to considerably increased corrosion resistance, which is due to formation of a dense amorphous carbon network. In contrast, heat treatment of the fullerene films increases the corrosion rates, presumably due to formation of iron carbide, which leads to galvanic corrosion.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2002 |
| Autor(en): | Sittner, F. ; Enders, B. ; Jungclas, H. ; Ensinger, W. |
| Art des Eintrags: | Bibliographie |
| Titel: | Corrosion properties of ion beam modified fullerene thin films on iron substrates |
| Sprache: | Englisch |
| Publikationsjahr: | September 2002 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Surface and Coatings Technology |
| Jahrgang/Volume einer Zeitschrift: | 158-159 |
| DOI: | 10.1016/S0257-8972(02)00279-7 |
| Kurzbeschreibung (Abstract): | The corrosion behavior of fullerene coated iron samples was investigated by using electrochemical techniques. Fullerene was deposited on iron substrates via thermal evaporation under high vacuum conditions. Subsequent sample preparation included heat treatment as well as Ar+ ion irradiation under various conditions, which were carried out to modify the fullerene coatings. Changes in the structure of the films due to the treatment were analyzed by Raman spectroscopy. To reveal the samples’ corrosion behavior, cyclovoltammetric measurements were performed in a weakly acidic aqueous medium particularly with regard to possible corrosion protective properties. As the results show, Ar-ion treatment of the fullerene films leads to considerably increased corrosion resistance, which is due to formation of a dense amorphous carbon network. In contrast, heat treatment of the fullerene films increases the corrosion rates, presumably due to formation of iron carbide, which leads to galvanic corrosion. |
| Freie Schlagworte: | Plasma immersion ion implantation, Fullerene, Corrosion, Iron, Amophous carbon, Thin films, Raman spectroscopy |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik |
| Hinterlegungsdatum: | 15 Nov 2012 10:33 |
| Letzte Änderung: | 06 Jul 2020 12:56 |
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