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Journal of Materials Science

, Volume 27, Issue 14, pp 3799–3802 | Cite as

Limited role of cation bulk diffusion in the oxidation of pure iron to magnetite

  • S. Tinkler
  • R. Dieckmann
Papers

Abstract

Recent experimental results for the oxidation of pure iron to magnetite below the eutectoid temperature for the formation of wüstite (570 °C) are re-analysed with respect to the mechanisms which control the overall reaction kinetics. The experimental parabolic rate constants are compared with those expected for cation bulk diffusion controlled reaction kinetics. The comparison shows that the experimental rate constants are as much as two orders of magnitude larger than the calculated values suggesting that processes other than cation bulk diffusion contribute to the overall reaction kinetics in the set of experiments investigated.

Keywords

Oxidation Iron Polymer Magnetite Experimental Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1992

Authors and Affiliations

  • S. Tinkler
    • 1
  • R. Dieckmann
    • 1
  1. 1.Department of Materials Science and Engineering, Bard HallCornell UniversityIthacaUSA

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