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Breakdown of Passive Film on Iron
Corrosion, 1984The breakdown of passive films potentiostatically formed on iron in borate and phosphate solutions of pH 8.42 and 11.50 is investigated in 0.5 kmol/m3 NaCl solution at a constant potential of –0.195 V(SHE) higher than a critical pitting potential of –0.295 V in the same solution. The investigation revealed that the logarithmic plots for pitting current
Rokuro Nishimura +2 more
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STUDY OF PASSIVATED FILMS OF GaSb
Modern Physics Letters B, 2001Thin anodie oxides (5-10 μm) were formed on n-GaSb (100) substrates by electrochemical method under galvanostatic regime employing an aqueous solution (citric acid/hydrogen peroxide), at volume ratio of 5:1, changing the time of growth. The thickness and index of refraction, thermal diffusivity and quality of passivated films were obtained by IR ...
M. I. REYES-VALDERRAMA +4 more
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Discontinuous Fabrication of Passive Film
ECS Meeting Abstracts, 2009Abstract not Available.
Hiroshi Nanjo +8 more
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Characterisation of passive films on copper
British Corrosion Journal, 1992Abstract The photopotentials of passive films formed on copper in sodium hydroxide solutions have been measured using high power mercury—xenon sources of various wavelengths after various periods of illumination. The film exhibits logarithmic growth kinetics and a positive photopotential.
S. Sathiyanarayanan +3 more
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Unveiling the effect of hydrostatic pressure on the passive films of the deformed titanium alloy
, 2021R. Liu +4 more
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The breakdown of passive films on iron
Corrosion Science, 1988Abstract Experimental measurements of pit initiation potential support the idea that the first stages of localized passive film breakdown depend upon the competition for adsorption, at the oxide/liquid interface, between hydroxyl ions and aggressive anions such as the chloride ion.
H.E.H. Bird, B.R. Pearson, P.A. Brook
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Passivity and Protective Oxide Films
Nature, 1928IN NATURE of Feb. 11 (p. 222) it is stated that “An X-ray examination of finely divided iron, nickel, and chromium, conducted by F. Kruger and E. Nahring at Greifswald, has shown conclusively that films of oxide thicker than 10−7 cm. are not present on the surface of a passive metal.” Lest a wrong impression be gained from this statement, I would ...
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Passivation and Surface Film Formation
1996Passivation is a process in which the metal surface transforms from an active state to an inactive state owing to the formation of a barrier layer. The passivation of zinc has been the subject of numerous studies as shown in Table 3.1. It should be noted that there is a clear difference between the studies made in strong alkaline solutions and those ...
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