Skip to main content
SpringerLink
Log in

Thermal Conductivity of the Molten CaO-SiO2-FeO x System

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

Abstract

Thermal conductivity measurements were carried out on synthetic steelmaking slag using the hot-wire method. Furthermore, local structure analysis in the melts was carried out in order to investigate the relationship with the composition dependence. The thermal conductivity of the CaO-SiO2-FeO x melts significantly decreased as the content of FeO x increases, particularly at lower basicity. Both chemical analysis and the observation show that the amount of Fe2+ increases when CaO/SiO2 is smaller, implying more basic behavior of FeO than FeO1.5. According to further analyses by Mössbauer spectroscopy, the degree of basicity of FeO1.5 remains virtually unchanged in the composition range of interest. From the experimental results, it could be concluded that the thermal conductivity of the silicate melt containing iron oxide is highly dependent on the valence of the Fe ion and comparatively independent of the amphoteric behavior of FeO1.5.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

  1. H. He and H. Suito: ISIJ Int., 2001, vol. 41, pp. 506–12.

    Article  CAS  Google Scholar 

  2. J.F.P. Gomes and P.G. Pinto: Rev. Metalurgia, 2006, vol. 42, pp. 409–16.

    CAS  Google Scholar 

  3. S.-J. Tae and K. Morita: ISIJ Int., 2008, vol. 48, pp. 1131–35.

    Article  Google Scholar 

  4. A.G. Matyas: Iron Steel Eng., 1978, vol. 55, pp. 29–30.

    CAS  Google Scholar 

  5. T. Kuwayama, M. Yamada, H. Atsuhiro, T. Mise, and S. Kobayashi: J. Soc. Mater. Sci. Jpn, 1991, vol. 40, pp. 1545–51.

    Article  CAS  Google Scholar 

  6. H.A. Fine, T. Engh, and J.F. Elliott: Metall. Trans. B, 1976, vol. 7B, pp. 277–85.

    Article  CAS  Google Scholar 

  7. K. Nagata, M. Susa, and K. Goto: Tetsu-to-Hagané, 1983, vol. 69, pp. 1417–24.

  8. K. Nagata and K.S. Goto: Proc. 2 nd Int. Symp. Metallurgical Slags and Fluxes, H.A. Fine and D.R. Gaskell, eds., Metall. Soc. AIME, Warrendale, PA, 1984, pp. 875–90.

    Google Scholar 

  9. M. Susa, F. Li, and K. Nagata: Ironmaking Steelmaking, 1993, vol. 20, pp. 201–06.

    CAS  Google Scholar 

  10. M. Hayashi, H. Ishii, M. Susa, H. Fukuyama, and K. Nagata: Phys. Chem. Glasses, 2001, vol. 42, pp. 6–11.

    CAS  Google Scholar 

  11. S. Ozawa, R. Endo, and M. Susa: Tetsu-to-Hagané, 2007, vol. 93, pp. 416–23.

  12. Y. Kang and K. Morita: ISIJ Int., 2006, vol. 46, pp. 420–26.

    Article  CAS  Google Scholar 

  13. Verein Deutscher Eisenhuttenleute: Slag Atlas, 2nd ed., Verlag Stahleisen, Dusseldorf, Germany, 1995, pp. 126–30.

  14. K. Nagata and M. Hayashi: CAMP-ISIJ, 2003, vol. 16, p. 873.

    Google Scholar 

  15. M. Hayashi, N. Nabeshima, H. Fukuyama, and K. Nagata: ISIJ Int., 2002, vol. 42, pp. 352–58.

    Article  CAS  Google Scholar 

  16. N. Iwamoto, Y. Tsunawaki, H. Nakagawa, T. Yoshimura, and N. Kawabayashi: Trans. JWRI, 1976, vol. 5, pp. 101–05.

    CAS  Google Scholar 

  17. Y.S. Lee, J.R. Kim, S.H. Yi, and D.J. Min: Proc. of VII Int. Conf. on Molten Slags, Fluxes and Salts, The South African Institute of Mining and Metallurgy, Johannesburg, South Africa, 2004, pp. 225–30.

    Google Scholar 

  18. K.C. Mills: “The Structure of Silicate Melts,” NPL Report DMM(A)-43, National Physical Laboratory, Teddington, U.K., 1991.

Download references

Acknowledgment

This research was carried out as a part of NEDO project, Environmentally Harmonized Steelmaking Process Technology Development (COURSE50).

Author information

Author notes

  1. Youngjo Kang (Research Associate, Senior Researcher)

    Present address: Technical Research Laboratories, POSCO, Pohang, Gyeongbuk, 790-300, Korea

Authors and Affiliations

  1. Institute of Industrial Science, The University of Tokyo, Tokyo, 153-8505, Japan

    Youngjo Kang (Research Associate, Senior Researcher), Kazuto Tokumitsu (Research Associate) & Kazuki Morita (Professor)

  2. Graduate School of Engineering, The University of Tokyo, Tokyo, 113-0033, Japan

    Kiyoshi Nomura (Associate Professor)

  3. Steel Research Laboratory, JFE Steel Corporation, Chiba, 260-0835, Japan

    Hiroyuki Tobo (Senior Researcher)

Authors
  1. Youngjo Kang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Kiyoshi Nomura
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Kazuto Tokumitsu
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Hiroyuki Tobo
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Kazuki Morita
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Youngjo Kang.

Additional information

Manuscript submitted November 28, 2011.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kang, Y., Nomura, K., Tokumitsu, K. et al. Thermal Conductivity of the Molten CaO-SiO2-FeO x System. Metall Mater Trans B 43, 1420–1426 (2012). https://doi.org/10.1007/s11663-012-9706-7

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11663-012-9706-7

Keywords

Search

Navigation