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Surface chemistry of water atomised aluminium alloy powders

Krajnikov, A. V. and Gastel, M. and Ortner, H. M. and Likutin, V. V. :
Surface chemistry of water atomised aluminium alloy powders.
[Online-Edition: http://www.sciencedirect.com/science/article/B6THY-45BRT6J-1...]
In: Applied Surface Science, 191 (1-4) pp. 26-43.
[Article] , (2002)

Official URL: http://www.sciencedirect.com/science/article/B6THY-45BRT6J-1...

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.

Item Type: Article
Erschienen: 2002
Creators: Krajnikov, A. V. and Gastel, M. and Ortner, H. M. and Likutin, V. V.
Title: Surface chemistry of water atomised aluminium alloy powders
Language: English
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.

Journal or Publication Title: Applied Surface Science
Volume: 191
Number: 1-4
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: 03 Feb 2010 13:28
Official URL: http://www.sciencedirect.com/science/article/B6THY-45BRT6J-1...
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