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Oxidation Kinetics Study of Finely Divided Magnetites Substituted for Aluminium and Chromium

  • Bernard Gillot
  • Abel Rousset
  • Jacques Paris
  • Pierre Barret

Abstract

It has long been known (1–3) that the cubic iron sesquioxide γFe2O3 only forms during low-temperature oxidation of finely-divided magnetites. However, “cubic” iron sesquioxides substituted for trivalent ions such as aluminium or chromium have been described only recently by Rousset (4–5). This difference may be explained by the fact that substituted magnetites prepared at temperatures close to 1000°C, by usual procedures are only slightly reactive towards oxygen.

Keywords

Substitution Rate Oxidation Kinetic Variable Working Pure Magnetite Experimental Activation Energy 
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References

  1. 1.
    F. Malaguti, C.R. Acad. Sci., Paris, 56, 467, (1863).Google Scholar
  2. 2.
    O. Baudisch and I. Welo, Nature 13, 749, (1925).Google Scholar
  3. 3.
    J. Huggett, Ann. Chim. 5, 1, 627, (1919).Google Scholar
  4. 4.
    A. Rousset, Thèse Lyon,(1969).Google Scholar
  5. 5.
    A. Rousset, J. Paris et P. Mollard, Ann. Chim. 7, 119, (1972).Google Scholar
  6. 6.
    A. Rousset and J. Paris, Bull. Soc. Chim. Fr. 10, 3729, (1972).Google Scholar
  7. 7.
    M. Robbins, G.K. Wertheim, R.C. Sherwood and D.N.E. Buchanan J. Phys. Chem. Solids, Vol. 32, 717, (1971).CrossRefGoogle Scholar
  8. 8.
    P. Poix, F. Basile and C. Djega-Mariadassou, Annales de Chimie, Vol. 10, n° 3, 159, (1975).Google Scholar
  9. 9.
    W.L. Roth, Le Journal de Physique, 25, 507, (1964).CrossRefGoogle Scholar
  10. 10.
    C.M. Yagnik andH.B. Mathur, J. Phys. C. Proc. Phys. Soc. 2, 469, (1968).CrossRefGoogle Scholar
  11. 11.
    G. Fagherazzi and Garbassi, J. Appl. Cryst. 5, 18, (1971).CrossRefGoogle Scholar
  12. 12.
    B. Gillot, Thèse Dijon, (1972).Google Scholar
  13. 13.
    B. Gillot, J.F. Ferriot and A. Rousset (to be published).Google Scholar
  14. 14.
    B. Gillot, D. Delafosse and P. Barret, Mat. Res. Bull. 8, 1431, (1973).CrossRefGoogle Scholar
  15. 15.
    W. Feitknecht and K.J. Gallagher, Nature 228, 548, (1970).CrossRefGoogle Scholar
  16. 16.
    R.L. Levin and J.B. Wagner, Transaction of Metallurgical Society of AIME, Vol. 233, (1965).Google Scholar
  17. 17.
    P.E. Childs, L.W. Laub and J.B. Wagner, Proc. Brit. Ceram. Soc. G.B., no 19, 29, (1971).Google Scholar
  18. 18.
    M.C. Cox, B. Mc Enaney and U.D. Scott, Philos. Mag. G.B. 26, 839, (1972).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1977

Authors and Affiliations

  • Bernard Gillot
    • 1
    • 2
  • Abel Rousset
    • 1
    • 2
  • Jacques Paris
    • 1
    • 2
  • Pierre Barret
    • 1
    • 2
  1. 1.Laboratoire de Recherches sur la Réactivité des Solides associé au C.N.R.S.Faculté des Sciences MirandeDijonFrance
  2. 2.Laboratoire de Chimie MinéraleU.E.R. de Chimie BiochimieVilleurbanneFrance

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