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A novel surface modification technique for aluminum

Published online by Cambridge University Press:  03 March 2011

R.S. Timsit and
D.C. Lauzon
R.S. Timsit
Affiliation:
Alcan International Ltd., Kingston R & D Centre, P.O. Box 8400, Kingston, Ontario, Canada K7L 5L9
D.C. Lauzon
Affiliation:
Alcan International Ltd., Kingston R & D Centre, P.O. Box 8400, Kingston, Ontario, Canada K7L 5L9
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Abstract

Surface modification is achieved by coating the aluminum surface with a powder mix of {Si + flux + a metal (Me)} and heating at ∼600 °C for a time interval of the order of 1 min. During heating, the flux melts and dissolves the native surface oxide film on aluminum, thus allowing Si to react with the substrate to form a film of liquid Al-Si alloy of near-eutectic composition. The component Me of the powder coating then reacts with the molten metal layer to modify the metallurgical properties of the surface after solidification.

Information

Type
Rapid Communications
Information
Journal of Materials Research , Volume 9 , Issue 3 , March 1994, pp. 531 - 534
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

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