Krajnikov, A. V. ; Gastel, M. ; Ortner, H. M. ; Likutin, V. V. (2002)
Surface chemistry of water atomised aluminium alloy powders.
In: Applied Surface Science, 191 (1-4)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
This paper focuses on the characterisation of chemical composition and morphology of the surface oxide film in water atomised (WA) aluminium powders as a function of technological regimes (atomisation temperature and water pressure) by AES. The surface film mainly consists of aluminium oxides. However, magnesium is enriched and oxidised on the powder surface. Powders atomised at a higher water pressure are usually less oxidised than those atomised at a lower pressure. The surface of powders is covered by surface oxides of non-uniform thickness. Rather high oxide islands cover 30-70% of the surface. The rest is covered with a thin oxide film of three to maximal eight monolayers.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2002 |
| Autor(en): | Krajnikov, A. V. ; Gastel, M. ; Ortner, H. M. ; Likutin, V. V. |
| Art des Eintrags: | Bibliographie |
| Titel: | Surface chemistry of water atomised aluminium alloy powders |
| Sprache: | Englisch |
| Publikationsjahr: | Mai 2002 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Surface Science |
| Jahrgang/Volume einer Zeitschrift: | 191 |
| (Heft-)Nummer: | 1-4 |
| URL / URN: | http://www.sciencedirect.com/science/article/B6THY-45BRT6J-1... |
| Kurzbeschreibung (Abstract): | This paper focuses on the characterisation of chemical composition and morphology of the surface oxide film in water atomised (WA) aluminium powders as a function of technological regimes (atomisation temperature and water pressure) by AES. The surface film mainly consists of aluminium oxides. However, magnesium is enriched and oxidised on the powder surface. Powders atomised at a higher water pressure are usually less oxidised than those atomised at a lower pressure. The surface of powders is covered by surface oxides of non-uniform thickness. Rather high oxide islands cover 30-70% of the surface. The rest is covered with a thin oxide film of three to maximal eight monolayers. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 03 Feb 2010 13:28 |
| Letzte Änderung: | 05 Mär 2013 09:30 |
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