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The thermodynamic properties of melts in the system MnO-SiO2

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Abstract

The activity of MnO in MnO-SiO2 melts has been measured at 1400, 1500 and 1600 °C by means of the technique in which equilibrium is established between the melt, a gaseous atmosphere of fixed oxygen pressure and a Pt-Mn foil immersed in the melt. The variation of the activity of SiO2 with composition and temperature and the integral free energies, and partial heats and entropies are derived. The activity of MnO and the free energy of formation of liquid Mn2SiO4 are well represented by Whiteway, Smith and Masson’s polymerization model of liquid silicates with Ink 1,1 = −5212/T + 1.011. Correlation of the results of the present study with previous measurements indicates that solubility of SiO2 in MnO-SiO2 melts is a significant function of oxygen pressure.

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References

  1. K. P. Abraham, M. W. Davies, and F. D. Richardson:J. Iron Steel Inst., 1960, vol. 196, p. 82.

    CAS  Google Scholar 

  2. M. W. Davies and F. D. Richardson:Trans. Faraday Soc., 1959, vol. 55, p. 604.

    Article  CAS  Google Scholar 

  3. K. P. Abraham, M. W. Davies, J. L. Barton, and F. D. Richardson:Ada Metall., 1960, vol. 8, p. 888.

    Article  CAS  Google Scholar 

  4. P. N. Smith and M. W. Davies:Trans. Inst. Min. Met., 1970, vol. 60, p. C79.

    Google Scholar 

  5. B. K. D. P. Rao and D. R. Gaskell:Metall. Trans. A, 1981, vol. 12A, p. 207.

    Google Scholar 

  6. S. R. Mehta and F. D. Richardson:J. Iron Steel Inst., 1965, vol. 203, p. 524.

    CAS  Google Scholar 

  7. K. K. Kelley:U.S. Bureau of Mines Report of Investigation 5901, p. 17, 1962.

  8. J. F. Elliott, M. Gleiser, and V. Ramakrishna:Thermochemistry for Steelmaking, vol. II, p. 305, Addison-Wesley Publishing Co., Reading, MA, 1963.

    Google Scholar 

  9. R. A. Robie and D. R. Waldbaum: Geological Survey Bulletin 1259, U.S. Govt. Printing Office, Washington, 1968.

    Google Scholar 

  10. S. G. Whiteway, I. B. Smith, and C. R. Masson:Can. J. Chem., 1970, vol. 48, p. 1456.

    Article  Google Scholar 

  11. D. R. Gaskell:Metall. Trans. B, 1977, vol. 8B, p. 131.

    CAS  Google Scholar 

  12. D. R. Gaskell:Can. Met. Q., in press.

  13. W. J. Rankin:Metall. Trans. B, 1978, vol. 9B, p. 726.

    CAS  Google Scholar 

  14. F. P. Glasser:Amer. J. Science, 1958, vol. 256, p. 398.

    Article  CAS  Google Scholar 

  15. E. T. Turkdogan and R. A. Hancock:Trans. Inst. Min. Met., 1958-59, vol. 67, p. 574.

    Google Scholar 

  16. E. L. Singleton, L. Carpenter, and R. V. Lundquist:US. Bureau of Mines Report of Investigation 5938, 1962.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of Pennsylvania, 19104, Philadelphia, PA

    B. K. D. P. Rao (Post-Doctoral Fellow)

  2. Department of Materials Science and Engineering, Univeristy of Pennsylvania, 19104, Philadelphia, PA

    D D. R. Gaskell (Professor)

Authors
  1. B. K. D. P. Rao
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  2. D D. R. Gaskell
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Rao, B.K.D.P., Gaskell, D.D.R. The thermodynamic properties of melts in the system MnO-SiO2 . Metall Trans B 12, 311–317 (1981). https://doi.org/10.1007/BF02654464

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  • DOI: https://doi.org/10.1007/BF02654464

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