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  • 1
    Digitale Medien
    Digitale Medien
    Metal oxidation: An electrochemical perspective (1988)
    Springer
    Oxidation of metals 30 (1988), S. 405-418 
    Details
    ISSN: 1573-4889
    Schlagwort(e): metal oxidation ; Wagner theory ; Mott-Cabrera theory
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract A general electrochemical theory for the oxidation of metals is presented. The oxidizing metal is viewed as a self-driving electrochemical cell in which the oxide acts as both ionic and electronic conductor. The irreversibility of each of the charge-transfer steps in the reaction mechanism is expressed in terms of an overpotential, the sum of these being equal to the Gibbs free-energy change accompanying the reaction. From this equality, it is possible to calculate the reaction rate as a function of the change in free energy and of such system parameters as oxide conductivity. It is shown that the Wagner theory and the Mott-Cabrera theory can be derived as special cases of the general electrochemical theory. The common basis for the Wagner theory and the Hoar-Price theory of parabolic oxidation is also demonstrated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00659008
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    An electrochemical analysis of surface control (1988)
    Springer
    Oxidation of metals 30 (1988), S. 419-432 
    Details
    ISSN: 1573-4889
    Schlagwort(e): metal oxidation ; oxygen reduction
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract An electrochemical analysis of surface-controlled metal oxidation is presented. The reduction of molecular oxygen adsorbed on the oxide surface is broken into a number of steps. The possible rate-determining steps are analyzed in turn and the resultant rate equations derived. It is predicted that an Nth-root growth law will occur with N varying continuously over a limited range. A similar result for the pressure dependence of the oxidation rate is obtained.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00659009
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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