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The thermodynamics of melts in the system VO2−V2O5

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Abstract

Using a gravimetric technique, the oxygen isobars in the liquid phase field of the system VO2−V2O5 have been determined in the temperature range 1020° to 1100°C and in the oxygen pressure range 0.01 to 0.4 atm, and the VO2 liquidus and solidus curves have been determined in the temperature range 953° to 1081°C. From these results have been calculated the activities of the components VO2 and VO2.5 in the system and the standard free energy change for the reaction 2VO2 (S)+1/2O2 (g)=V2O5 (1). The latter was determined to be ΔG o=−17780+7.64T in the temperature range 1020° to 1100°C.

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References

  1. A. Bystrom, K-A. Wihelmi, and O. Brotzen:Acta Chem. Scand., 1950, vol. 4, p. 1119.

    Article  CAS  Google Scholar 

  2. S. Kachi and R. Roy: Second Quarterly Report on Crystal Chemistry Studies, Pennsylvania State Univ., December, 1965.

  3. N. Kimizuka, M. Salki, and M. Nakahira:Mater. Res. Bull., 1970, vol. 5, p. 403.

    Article  CAS  Google Scholar 

  4. G. R. Belton and R. J. Fruehan:J. Phys. Chem., 1967, vol. 71, p. 1403.

    Article  CAS  Google Scholar 

  5. H. Flood, T. Forland, and K. Grjotheim:The Physical Chemistry of Melts, p. 46. Inst. Min. Met., London, 1953, p. 46.

    Google Scholar 

  6. D. A. Pantony and K. I. Vasu:J. Inorg. Nucl. Chem., 1968, vol. 30, p. 433.

    Article  CAS  Google Scholar 

  7. S. Desagher, L.-T. Yu, and R. Buver:C. R. Acad. Sci., Paris, Ser. C., 1970, vol. 270, p. 465.

    CAS  Google Scholar 

  8. E. F. Milan:J. Phys. Chem., 1929, vol. 33, p. 498.

    Article  CAS  Google Scholar 

  9. A. D. Mah and K. K. Kelly. U.S.Bur Mines Rept., 5858, 1961.

  10. J. P. Coughlin:U. S. Bur. Mines Bull. No. 542.

  11. J. F. Elliott and M. Gleiser:Thermochemistry for Steelmaking, vol. 1, pp. 211–12, Addison-Wesley, 1960.

    Google Scholar 

  12. N. P. Allen, O. Kubaschewski, and O. von Goldbeck:J. Electrochem. Soc., 1951, vol. 98, p. 417.

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. School of Metallurgy and Materials Science and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pa.

    Hideaki Suito (Graduate Student) & D. R. Gaskell (Assistant Professor)

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  1. Hideaki Suito
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  2. D. R. Gaskell
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Suito, H., Gaskell, D.R. The thermodynamics of melts in the system VO2−V2O5 . Metall Trans 2, 3299–3303 (1971). https://doi.org/10.1007/BF02811610

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  • DOI: https://doi.org/10.1007/BF02811610

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