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Persistent URL
http://purl.org/net/epubs/work/30265
Record Status
Checked
Record Id
30265
Title
Morphology of enriched alloy layers in an anodized Al-Cu alloy
Contributors
S Garcia-Vergara (UMIST)
,
P Skeldon (UMIST)
,
GE Thompson (UMIST)
,
P Bailey (CCLRC Daresbury Lab.)
,
TCQ Noakes (CCLRC Daresbury Lab.)
,
H Habazaki (Hokkaido)
,
K Shimizu (Keio)
Abstract
Using medium energy ion scattering, combined with Rutherford backscattering spectroscopy, transmission electron microscopy and atomic force microscopy, the development of the copper-enriched alloy layer during anodizing of a sputtering-deposited Al–0.4 at.% Cu alloy has been examined. The enriched layer is located just beneath the amorphous alumina film that is produced on the anodized alloy. Importantly for understanding the mechanism of formation of the enriched layer, the layer is revealed to be of thickness ?2.1 nm from the start of the anodizing, when enrichment of copper is very low, with no significant increase in the thickness of the layer as the copper enriches to ?3×1015 Cu atoms cm?2, the maximum measured in the present experiments. The findings are consistent with a model of the layer in which the copper is present mainly in copper-rich clusters.
Organisation
CCLRC
,
SND
,
MEIS
Keywords
Funding Information
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Language
English (EN)
Type
Details
URI(s)
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Year
Journal Article
Appl Surf Sci
205, no. 1-4 (2002): 121-127.
doi:10.1016/S0169-4332(02)01040-1
2002
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