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Carbon Solubility in the CaO-SiO2-3MgO-CaF2 Slag System

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Abstract

The carbon solubility in the CaO-SiO2-3MgO-CaF2 slag system at 1773 K (1500 °C) was investigated under CO/Ar and CO/N2 gases. Higher extended basicity [(CaO + MgO)/SiO2) increased the carbon solubility in the slag as the activity of free oxygen ions (\( \varvec{a}_{{{\mathbf{O}}^{2 - } }} \)] promoted the reaction of the free carbide mechanism. Higher CaF2 also resulted in higher carbon dissolution into the slag as fluorine ions interact with the bridged oxygen (O0) in the melt structure to increase the activity of the free oxygen ions in the melt. Structural information obtained from the Fourier transformed infra-red (FT-IR) and Raman revealed a depolymerization of the network structure as the simpler structural units of NBO/Si = 4 increased and the Si-O-Si bending vibrations decreased with higher basicity and CaF2 content. This correlated well with higher free oxygen ions (O2−) in the slag system and subsequently higher carbon dissolution. A correlation of the theoretical optical basicity (Λth) with the logarithm of the carbon content in slag showed a relatively similar trend and an increase of carbon was observed with higher optical basicity.

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References

  1. K. Schwerdtfeger and H.G Schubert: Metall. Trans. B., 1977, vol. 8B, pp. 535-540.

    Article  Google Scholar 

  2. R.A. Berryman and I.D. Sommerville: Metall. Trans. B., 1992, vol. 23B, pp. 223-227.

    Article  Google Scholar 

  3. I. Sohn, D.J. Min, and J.H. Park: Steel Res., 1999, vol. 70, pp. 215-220.

    Google Scholar 

  4. J.-Y. Park and I. Sohn: Metall. Mater. Trans. B., 2013, vol. 44B, pp. 123-132.

    Article  Google Scholar 

  5. M. Kuwata and H. Suito: Metall. Mater. Trans. B., 1996, vol. 28B, pp. 57-64.

    Article  Google Scholar 

  6. J.H. Park, D.J. Min, and H.S. Song: ISIJ Int., 2002, vol. 42, pp. 127-131.

    Article  Google Scholar 

  7. G. J. W. Kor and F. D. Richardson: Trans. of the Metall. Society of AIME, 1969, vol. 245, pp. 319-327.

    Google Scholar 

  8. A. Mitchell: Trans. Faraday Society, 1967, vol. 63, pp. 1408-1417.

    Article  Google Scholar 

  9. D. Kumar, R. G. Ward and D. J. Williams: Disc. Faraday Society, 1961, vol. 32, pp. 147-155.

    Article  Google Scholar 

  10. G.-H. Kim, C.-S., Kim, and I. Sohn: ISIJ Int., 2013, vol. 53, pp. 170–76.

    Article  Google Scholar 

  11. J.-Y. Park, S.-J. Park, W.-S. Chang, and I. Sohn: J. Am. Cer. Soc., 2012, vol. 95, pp. 1756-1763.

    Article  Google Scholar 

  12. M. Kuwata and H. Suito: MMTB, 1996, vol. 27B, pp. 57-64.

    Article  Google Scholar 

  13. B.O. Mysen, D. Virgo, and C. M. Scarfe: Am. Mineral., 1980, vol. 65, pp. 690-710.

    Google Scholar 

  14. P. McMillan: Am. Mineral., 1984, vol. 69, pp. 645-659.

    Google Scholar 

  15. H.W. Nesbitt, G.M. Bancroft, G.S. Henderson, R.Ho, K.N. Dalby, Y. Huang, and Z. Yan: J. Non-Cryst. Solids, 2011, vol. 357, pp. 170-180.

    Article  Google Scholar 

  16. J. A. Duffy and M.D. Ingram: Phys. Chem. Glasses, 1975, vol. 16, pp. 119-123.

    Google Scholar 

  17. C. J. B. Fincham and F. D. Richardson: Proc. Roy. Soc., 1954, vol. A223, pp. 40-62.

    Article  Google Scholar 

  18. T. Nakamura, T. Yokoyama, and J.M. Toguri: ISIJ Int., 1993, vol. 33, pp. 204-209.

    Article  Google Scholar 

  19. J.H. Park and D.J. Min: Metall. Mater. Trans. B., 1999, vol. 30B, pp. 1045-1052.

    Article  Google Scholar 

  20. J.H. Park, G.H. Park and Y.E. Lee: ISIJ Int., 2010, vol. 50, pp. 1078-1083.

    Article  Google Scholar 

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This study was partially supported by the BK21PLUS Project at the Division of the Eco-Humantronics Information Materials, the National Science Foundation of Korea Project No. 2012-8-0486 and the Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0093823).

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Authors and Affiliations

  1. Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Korea

    Jun-Yong Park (Graduate Student) & Il Sohn (Associate Professor)

  2. Graduate Institute of Ferrous Technology, POSTECH, San31, Hyoja-dong, Nam-gu, Pohang, Gyeongbuk, 790-784, Korea

    Sung-Mo Jung (Professor)

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  1. Jun-Yong Park
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  2. Sung-Mo Jung
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  3. Il Sohn
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Correspondence to Il Sohn.

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Manuscript submitted August 27, 2013.

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Park, JY., Jung, SM. & Sohn, I. Carbon Solubility in the CaO-SiO2-3MgO-CaF2 Slag System. Metall Mater Trans B 45, 329–333 (2014). https://doi.org/10.1007/s11663-014-0028-9

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