Metallurgical and Materials Transactions B

, Volume 37, Issue 1, pp 145–148 | Cite as

The fluctuations in slag foam under dynamic conditions

  • Abha Kapilashrami
  • Ashok Kumar Lahiri
  • Mårten Görnerup
  • Seshadri Seetharaman
Communications

Abstract

In the present article, slag foaming phenomenon under dynamic conditions is critically analyzed on the basis of the results of high-temperature X-ray image analysis experiments. The results indicate that the mismatch between the gas generation rate and gas escape rate has a serious impact on the foam height. This mismatch is attributed to the chemical reaction rate, which has to be considered in modeling slag foaming under dynamic conditions. The results further imply that a critical ratio of bubble size/crucible size exists, where wall effects are likely to become prominent.

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References

  1. 1.
    A. Kapilashrami, M. Görnerup, A.K. Lahiri, and S. Seetharaman: Metall. Mater. Trans. B, 2004, vol. 35A, pp. 109–17.Google Scholar
  2. 2.
    J.J. Bikerman: Foams: Theory and Industrial Applications, Reinhold Publishing Corporation, New York, NY, 1953, p. 37.Google Scholar
  3. 3.
    K. Ito and R.J. Fruehan: Metall. Trans. B, 1989, vol. 20B, p. 509.Google Scholar
  4. 4.
    Y. Zhang and R.J. Fruehan: Metall. Mater. Trans. B, 1995, vol. 26B, p. 803.Google Scholar
  5. 5.
    S.-M. Jung and R.J. Fruehan: Iron Steel Inst. Jpn. Int., 2000, vol. 40, p. 348.Google Scholar
  6. 6.
    H.S. Kim, D.J. Min, and J.H. Park: Iron Steel Inst. Jpn. Int., 2001, vol. 41, p. 317.Google Scholar
  7. 7.
    A.K. Lahiri and S. Seetharaman: Metall. Mater. Trans. B 2002, vol. 33B, p. 499.Google Scholar
  8. 8.
    S. Hartland and A.D. Barber: Trans. Inst. Chem. Eng., 1974, vol. 52, p. 43.Google Scholar
  9. 9.
    M. Görnerup and A.K. Lahiri: Ironmaking and Steelmaking, 1998, vol. 25, p. 382.Google Scholar

Copyright information

© ASM International & TMS-The Minerals, Metals and Materials Society 2006

Authors and Affiliations

  • Abha Kapilashrami
    • 1
  • Ashok Kumar Lahiri
    • 2
  • Mårten Görnerup
    • 3
  • Seshadri Seetharaman
    • 3
  1. 1.Corus Research, Development and TechnologyIJmuidenThe Netherlands
  2. 2.the Department of MetallurgyIndian Institute of ScienceBangaloreIndia
  3. 3.the Department of Material Science and EngineeringRoyal Institute of TechnologyStockholmSweden

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