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Influence of Oxygen Dissociation on the Oxidation of Iron

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Abstract

Kinetics of the oxidation of iron in fluxes of atomic and molecular oxygen have been studied over a wide temperature range from 573 to 1273 K. The influence of oxygen pre-dissociation on the oxidation rate was found negligible at 573–1073 K. At temperatures above 1073 K, when only FeO is formed, the rate of iron oxidation in atomic oxygen is substantially higher than that in molecular oxygen. Decarburization occurs during the first stage of oxidation of iron containing carbon. The rate of carbon elimination in atomic oxygen exceeds that in molecular oxygen due to the higher chemical potential of atomic gas.

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Authors and Affiliations

  1. Department of Chemistry, Belarus State University, Republic of Belarus

    M. L. Zheludkevich, A. G. Gusakov, A. G. Voropaev, A. A. Vecher & K. A. Yasakau

  2. Department of Ceramics and Glass Engineering, University of Aveiro, Portugal

    M. L. Zheludkevich & M. G. S. Ferreira

Authors
  1. M. L. Zheludkevich
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  2. A. G. Gusakov
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  3. A. G. Voropaev
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  4. A. A. Vecher
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  5. K. A. Yasakau
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  6. M. G. S. Ferreira
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Zheludkevich, M.L., Gusakov, A.G., Voropaev, A.G. et al. Influence of Oxygen Dissociation on the Oxidation of Iron. Oxidation of Metals 62, 223–235 (2004). https://doi.org/10.1007/s11085-004-7809-5

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  • DOI: https://doi.org/10.1007/s11085-004-7809-5

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