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Corrosion Protection of Aluminum-Matrix Composites

Published online by Cambridge University Press:  21 February 2011

Jiangyuan Hou  and
D. D. L. Chung
Jiangyuan Hou
Affiliation:
Composite Materials Research Laboratory, State University of New York at Buffalo, Buffalo, NY 14260-4400
D. D. L. Chung
Affiliation:
Composite Materials Research Laboratory, State University of New York at Buffalo, Buffalo, NY 14260-4400
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Abstract

Aluminum-matrix composites are attractive in their combination of low CTE and high thermal conductivity. Anodizing is an effective surface treatment for improving the corrosion resistance of aluminum-matrix composites. ForSiC filled aluminum, anodizing was performed successfully in an acid electrolyte, as usual. However, for AIN filled aluminum, anodizing needed to be performed in an alkaline (NaOH) electrolyte instead of an acid electrolyte, because NaOH reduced the reaction between AIN and water, whereas an acid enhanced this reaction. The concentration of NaOH in the electrolyte was critical; too high a concentration of NaOH caused the dissolution of the anodizing product (A12O3) by the NaOH, whereas too low a concentration of NaOH did not provide enough ions for the electrochemical process.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 390: Symposium S – Electronic Packaging Materials Science VIII , 1995 , 129
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1. Lai, Shy-Wen and Chung, D.D.L., J. Mater. Sci. 29, 6181–6198 (1994).Google Scholar
2. Turnbull, A., NPL Report DMM(A) 15, 1990.Google Scholar
3. Lin, S. and Greene, H., Corrosion 48, 61 (1992).Google Scholar
4. Mansfeld, F. and Lin, S., Corrosion 45, 615 (1989).Google Scholar
5. Keller, F., Hunter, M.S. and Robinson, O.L., J. Electrochem. Soc. 100, 411 (1983).Google Scholar
6. Tajima, S., Advances in Corrosion Sci. and Tech. 1, 1970, Plenum Press, New York, NY p. 229.Google Scholar
7. Trzaskoma, P.P. and McCafferty, E., Proc. of the Symposium on Aluminum Surface Treatment Tech. 86, 1986 p. 171.Google Scholar
8. Trzaskoma, P.P., Corrosion (Houston) 46, 402 (1990).Google Scholar
9. McCafferty, E. and Trzaskoma, P.P., J. Electrochem Soc. 130, 1804 (1983).Google Scholar
10. McCafferty, E. and Trzaskoma, P.P., Int. Corros. Conf. Ser.. NACE-9 (Adv. Localized Corros.) 1990, p. 181–190.Google Scholar
11. Mansfeld, F. and Jeanjaquet, S.L., Corros. Sci. 29, 727 (1986).Google Scholar
12. Chialvo, M.R. Generro de and Zerboni, J.O., J. Appl. Electrochem. 16(4), 517–526 (1986).Google Scholar
13. Dhir, R.K., Jones, M.R. and McCarthy, M.J., Cem. Concr. Res. 23, 1443 (1993).Google Scholar
14. Mansfeld, F. and Jeanjaquet, S.L., Int. Corros. Conf. Ser.. NACE-9 (Adv. Localized Corros.) 1990, p. 343.Google Scholar