Surface characterisation of cerium layers on galvanised steel

The present paper investigates the inhibition mechanisms of CeCl 3·7H 2O in a range of concentrations, 100–1000 ppm, on hot dip galvanised steel in 3.5 wt.% NaCl solution. Following 4 h immersion in the studied solution, galvanised steel develops a yellow layer on the surface. X-ray photoelectron sp...

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Bibliographic Details
Published inSurface & coatings technology Vol. 187; no. 2; pp. 320 - 325
Main Authors Arenas, M.A., de Damborenea, J.J.
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier B.V 22.10.2004
Elsevier
Subjects
A: photoelectron spectroscopy
C: chemical conversion
Cross-disciplinary physics: materials science; rheology
D: zinc
Exact sciences and technology
Materials science
Other topics in materials science
Physics
X: inhibition
A: photoelectron spectroscopy
D: zinc
X: inhibition
C: chemical conversion
Rare earths
Galvanized steel
Cerium
Surface layers
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Summary:The present paper investigates the inhibition mechanisms of CeCl 3·7H 2O in a range of concentrations, 100–1000 ppm, on hot dip galvanised steel in 3.5 wt.% NaCl solution. Following 4 h immersion in the studied solution, galvanised steel develops a yellow layer on the surface. X-ray photoelectron spectroscopy (XPS) revealed that the layer is composed of two regions: a surface region, which is a mixture of a hydrated oxide/hydroxide of cerium (III) and ZnO, and an internal region, which is a mixture of ZnO and cerium (III) oxide.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2004.02.033