Skip to main content
Log in

The chemical diffusivity of oxygen in liquid iron oxide and a calcium ferrite

  • Published:
Metallurgical and Materials Transactions B Aims and scope Submit manuscript

Abstract

Measurements have been made of the chemical diffusion coefficient of oxygen in liquid iron oxide at temperatures from 1673 to 1888 K and in a calcium ferrite (Fe/Ca = 2.57) at temperatures from 1573 to 1873 K. A gravimetric method was used to measure the oxygen uptake during the oxidation of the melts by oxygen or CO2-CO mixtures. The rate was shown to be controlled by mass transfer in the liquid melt. The chemical diffusivity of oxygen in liquid iron oxide at oxygen potential between air and oxygen was found to be 4.2±0.3 × 10−3 cm2/s at 1888 K. That in iron oxide at oxidation state close to iron saturation was established to be given by the empirical expression log D=−6220/T + 1.12 for temperatures between 1673 and 1773 K. For the calcium ferrite (Fe/Ca=2.57) at oxygen potential between air and oxygen, the diffusivity of oxygen was found to be given by log D=−1760/T−1.31 for temperatures between 1673 and 1873 K.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. G.R. Belton and R.J. Fruehan: Proc. Ethem T. Turkdogan Symp., ISS-AIME, Warrendale, PA, 1994, pp. 3–22.

    Google Scholar 

  2. S.R. Story, B. Sarma, R.J. Fruehan, A.W. Cramb, and G.R. Belton: Metall. Mater. Trans. B, 1998, vol. 29B, pp. 935–38.

    Google Scholar 

  3. D. Xie and G.R. Belton: Metall. Mater. Trans. B, 1999, vol. 30B, pp. 465–72

    CAS  Google Scholar 

  4. T. Nagasaka Y. Iguchi, and S. Ban-Ya: Tetsu-to-Hagané, 1989, vol. 75, pp. 74–81.

    CAS  Google Scholar 

  5. Y. Li: Ph.D. Thesis, University of Newcastle, Callaghan, NSW, Australia, 1999.

    Google Scholar 

  6. P. Grieveson and E.T. Turkdogan: TMS-AIME, 1964, vol. 230, pp. 1609–14.

    CAS  Google Scholar 

  7. K. Mori and K. Suzuki: Trans. Iron Steel Inst. Jpn., 1969, vol. 9, pp. 409–12.

    Google Scholar 

  8. Y. Sayadyaghoubi, S. Sun, and S. Jahanshahi: Metall. Mater. Trans. B, 1995, vol. 26B, pp. 795–802.

    CAS  Google Scholar 

  9. Y. Sasaki, S. Hara, D.R. Gaskell, and G.R. Belton: Metall. Trans. B, 1984, vol. 15B, pp. 563–71.

    CAS  Google Scholar 

  10. S. Ban-ya, Y. Iguchi, and T. Nagaska: Tetsu-to-Hagané, 1983, vol. 69, p. S761; 1984, vol. 70, pp. A21–A24.

  11. G.R. Belton: 2nd Int. Symp. on Metallurgical Slags and Fluxes, TMS-AIME, Warrendale, PA, 1984, pp. 63–85.

    Google Scholar 

  12. A.M. Strachan: Ph.D. Thesis, University of Strathcyde, Glasgow, United Kingdom, 1974.

    Google Scholar 

  13. P. Grieveson: Physical Chemistry in Metallugy—Proc. Darken Conf., U.S. Steel, Monroeville, PA, 1976, pp. 69–92.

    Google Scholar 

  14. L.S. Darken and R.W. Gurry: J. Am. Chem. Soc., 1946, vol. 68, pp. 798–816.

    Article  CAS  Google Scholar 

  15. J. Crank: The Mathematics of Diffusion, Oxford University Press, Oxford, United Kingdom, 1970, pp. 47–53.

    Google Scholar 

  16. E.T. Turkdogan, P. Grieveson, and L.S. Darken: J. Phys. Chem., 1963, vol. 67, pp. 1647–54.

    CAS  Google Scholar 

  17. K. Mori and K. Suzuki: Trans. Iron Steel Inst. Jpn., 1968, vol. 8, pp. 382–84.

    Google Scholar 

  18. S. Hara, K. Irie, D.R. Gaskell, and K. Ogino: Trans. Jpn. Inst. Met., 1988, vol. 29, pp. 977–89.

    CAS  Google Scholar 

  19. P.K. Bhattacharyya and D.R. Gaskell: Metall. Mater. Trans. B, 1996, vol. 27B, pp. 139–41.

    Article  CAS  Google Scholar 

  20. Y. Takeda, S. Nakazawa, and A. Yazawa: Can. Metall. Q, 1980, vol. 19, pp. 297–305.

    CAS  Google Scholar 

  21. S. Stotz: Ber. Bunsenges. Phys. Chem., 1966, vol. 70, p. 769.

    CAS  Google Scholar 

  22. H.J. Grabke: Ann. NY Acad. Sci., 1973, vol. 213, pp. 110–29.

    Article  CAS  Google Scholar 

  23. H.J. Grabke: Ber. Bunsenges. Phys. Chem., 1965, vol. 69, pp. 48–57.

    CAS  Google Scholar 

  24. J. Chipman and L.C. Chang: Trans. AIME, 1949, vol. 185, pp. 191–97.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

This article is based on a presentation made in the “Geoffrey Belton Memorial Symposium,” held in January 2000, in Sydney, Australia, under the joint sponsorship of ISS and TMS.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Li, Y., Fruehan, R.J., Lucas, J.A. et al. The chemical diffusivity of oxygen in liquid iron oxide and a calcium ferrite. Metall Mater Trans B 31, 1059–1068 (2000). https://doi.org/10.1007/s11663-000-0081-4

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11663-000-0081-4

Keywords

Navigation