Composition and structure of enriched alloy layers in filmed Al alloys studied by medium‐energy ion scattering

Paul Bailey, P. Skeldon, T.C.Q. Noakes, G. E. Thompson, M. Sakairi, H. Habazaki, Ken‐ichi Shimizu

Surface and Interface Analysis · 2001 · 19 citations · 16 references

Concepts

Abstract

Abstract The topmost 20 nm of an electropolished Al–1 at.% Cu alloy has been investigated at sub‐nanometre resolution using medium‐energy ion scattering. Differences in the composition and depth of the enriched Cu layer are observed. Most significantly, the enriched layer contains regions of differing structure and/or lattice orientation with Cu atoms located in distinct ordered regions, consistent with the presence of Cu‐rich clusters. Surface‐segregated Si and Cu are observed and Cl and Cu are found in the oxide. Copyright © 2001 John Wiley & Sons, Ltd.

References

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