A. Nazarov et D. Thierry, ANALYSIS OF SURFACE CARBON CONTAMINATION ON PHOSPHATED ZINC SURFACES BY SCANNING KELVIN PROBE MEASUREMENTS, Journal of the Electrochemical Society, 145(3), 1998, pp. 39-42
Citations number
11
Categorie Soggetti
Electrochemistry,"Materials Science, Coatings & Films
The scanning Kelvin probe has been used to detect the presence of carb
on particles on phosphated and electrogalvanized steel panels. The res
ults showed that 30-40 mu m carbon particles could be detected by this
method. Oxygen reduction is shown to be the rate-limiting step for th
e atmospheric corrosion of phosphated zinc surfaces. The presence of c
arbon particles leads to a rapid degradation of the phosphate layer at
the contaminated locations.