Model Calculations of Metal Oxidation at Ambient Temperatures

  • E. Fromm
Part of the NATO ASI Series book series (ASIC, volume 276)

Abstract Oxidation of clean metal surfaces at ambient temperatures is a heterogenous reaction composed of several individual partial steps such as adsorption of oxygen on the oxide surface, formation and transport of lattice defects in the oxide layer and formation of the oxide at the reaction front. Reaction models describing limiting cases, e.g., very thin layers according to the Cabrera-Mott mechanism or transport-controlled layer growth for constant defect concentrations at the phase boundaries may be found already in the literature. The aim of the model calculations presented is a straight forward description of oxidation kinetics including the limiting cases as well as interface reactions at the phase boundaries gas/ oxide and oxide/metal. A set of non-linear algebraic equations are solved numerically. Results are discussed for systems with only one lattice defect being responsible for the transport of atomic species inside the oxide. They are found to be in good agreement with oxidation experiments performed with the quartz microbalance technique using initially gas-free metal films and for exposure times ranging from 102 to 105S.


Oxide Scale Reaction Front Oxidation Curve Piezoelectric Quartz Electronic Species 
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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • E. Fromm
    • 1
  1. 1.Max-Planck-Institut für MetallforschungInstitut für WerkstoffwissenschaftenStuttgart-1Deutschland

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