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Issue 5, 2004
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Sub-micrometre imaging of metal surface corrosion by scanning Kelvin nanoprobe

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Abstract

The detection of the initial changes in the surface microstructure and local chemical properties connected to the corrosion process is possible using a high-resolution scanning Kelvin nanoprobe. This technique provides the simultaneous imaging of the topographical features and potential distribution across a surface at the sub-micrometer level. Nanoprobe measurements performed on samples of Al, Cu, Fe, Ni, Ag and Pt before and after exposure to different corroding solutions reveal the significant changes that take place during the first stages of the corrosion process. The similarities of the images obtained subsequent to corrosion are reflective of surface fractal behavior.

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Article information


Submitted
05 Feb 2004
Accepted
10 Mar 2004
First published
31 Mar 2004

Analyst, 2004,129, 406-409
Article type
Paper

Sub-micrometre imaging of metal surface corrosion by scanning Kelvin nanoprobe

L. Cheran and M. Thompson, Analyst, 2004, 129, 406
DOI: 10.1039/B401795C

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