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Nano-scale Imaging of Corrosion: Application of Scanning Polarization Force Microscopy

Published online by Cambridge University Press:  15 February 2011

Qing Dai ,
Jun Hu ,
Andrew Freedman ,
Gary N. Robinson  and
Miquel Salmeron
Qing Dai
Affiliation:
Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821
Jun Hu
Affiliation:
Materials Science Division, Lawrence Berkeley Laboratory, UC. Banerdkeley, CA 94720, USA
Andrew Freedman
Affiliation:
Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821
Gary N. Robinson
Affiliation:
Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821
Miquel Salmeron
Affiliation:
Materials Science Division, Lawrence Berkeley Laboratory, UC. Banerdkeley, CA 94720, USA
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Abstract

Scanning Polarization Force Microscopy, a recently developed non-contact imaging technique, is employed for the study of sulfuric acid induced aluminum corrosion. The morphological changes occurring during the corrosion of aluminum by sulfuric acid droplets were imaged in situ with nanometer resolution using Scanning Polarization Force Microscopy. The results of these experiments not only demonstrate the potential applications of SPFM in imaging liquid surfaces and weakly adsorbed species, they also offer new insights into the mechanisms of atmospheric corrosion.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 406: Symposium L – Diagnostic Techniques for Semiconductor Materials Processing , 1995 , 215
Copyright
Copyright © Materials Research Society 1996

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References

1. Graedel, T.E., J. Electrochem. Soc. 136, 204C (1989)Google Scholar
2. Graedel, T. E., Mat. Res. Soc. Symp. Proc. 125, 95 (1988)Google Scholar
3. Graedel, T.E., Marine Chemistry 30. 123 (1990)Google Scholar
4. Foley, R.T. and Nguyen, T.H., J. Electrochem. Soc. 129, 464 (1982)Google Scholar
5. Hu, J., Xiao, X.-D., Ogltree, D.F. and Salmeron, M., Science 268, 173 (1995)Google Scholar
6. Hu, J., Xiao, X.-D. and Salmeron, M., J. Appl. Phys. In pressGoogle Scholar
7. Dai, Q., Freedman, A. and Robinson, G. N., J. Electrochem. Soc. in press Google Scholar
8. Gesang, T., Höper, R., Dieckhoff, S., Fanter, D., Hartwig, A., Possart, W., and Hennemann, O.-D., Appl. Surf. Sci. 84, 273 (1995) and references therein.Google Scholar
9. The liquid nature of the droplets was verified with contact-mode AFM imaging, since, as noted above, the liquid is displaced by the probe tip in contact -mode and is thus “invisible” to the microscope.Google Scholar
10. Kolb, C.E., Jayne, J.T., Worsnop, D.R., Molina, M.J., Meads, R.F. and Viggiano, A.A., J. Am.Chem. Soc. 116, 10315 (1994).Google Scholar
11. Chemical Engineers' Handbook, Perry, J.H. (Ed.) McGraw-Hill, p. 168 (1950).Google Scholar
12. Separate contact-mode AFM experiments indicates that aluminum sulfate salt is hygroscopic. At 60–80% RH, the salt becomes fluid like, while at RH<35%, the salt layer it a solid. Drying of the aqueous aluminum sulfate solution did not produce any liquid droplets as confirmed by both SPFM and AFM imaging.Google Scholar