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Journal of Phase Equilibria

, Volume 14, Issue 5, pp 588–600 | Cite as

The phase diagrams and thermodynamics of the ZrO2-CaO-MgO and MgO-CaO systems

  • Y. Yin
  • BJB. Argent
Section I: Basic and Applied Research

Abstract

The phase diagram of the ZrO2-CaO-MgO system was studied both experimentally and computationally. Using the newly developed isoplethal map method, the partial isotherms of the system at 1523,1573,1683, and 1773 K were determined with better accuracy than reported in the literature. The enthalpies of formation of the fluorite cubic structure, with reference to the monoclinic zirconia and the periclase CaO and MgO, were measured calorimetrically. With optimized binary data for the systems ZrO2-MgO and ZrO2-CaO, which were reported elsewhere, and the data for MgO-CaO briefly discussed in this paper, the thermodynamics and phase diagram data of the ternary system were assessed by means of computational optimization. Good agreement between the experimental and computational results were obtained. The liquidus surface was also predicted and compared with the available experimental results.

Keywords

Phase Boundary Ternary System Halite Solid Solution Phase Excess Gibbs Energy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Cited References

  1. 16Ran:.
    G.A. Rankin and H.I. Mervin,J. Am. Chem. Soc, 38, 568 (1916).CrossRefGoogle Scholar
  2. 49Tro:.
    Trojer and K. Konopicky,Radex Rundsch,4,161 (1949). SeeCeramicAbstr., March, 59c (1950).Google Scholar
  3. 52Duw:.
    P. Duwez, F. Odell, and F.H. Brown, Jr.,J. Am. Ceram. Soc., 35, 107(1952).CrossRefGoogle Scholar
  4. 63Dom:.
    R.C. Doman, J.B. Barr, R.N. McNally, and A.M. Alper,J. Am. Ceram. Soc.,46,313 (1963).CrossRefGoogle Scholar
  5. 63Smo:.
    T.W. Smoot and J.R. Ryan,J. Am. Ceram. Soc., 46,597 (1963).CrossRefGoogle Scholar
  6. 65Din:.
    A.M. Diness andR. Roy,Solid State Commun., 3,123 (1965).ADSCrossRefGoogle Scholar
  7. 68Car:.
    R.E. Carter and W.L. Roth,Electromotive Force Measurements in High Temperature Systems, C.B. Alcock, Ed., Inst. of Mining and Metallurgy, London, 125–144(1968).Google Scholar
  8. 68Foe:.
    M. Foex, “Electricity and MHD,” Proceedings of a Symposium, Warsaw, 24-30, July 1968. International Atomic Energy Agency, Vienna, Vol. V, 3139–3160 (1968). Also see [92How].Google Scholar
  9. 69Hen:.
    J.W. Henney and J.W.S. Jones,Trans. J. Br. Ceram. Soc.,68,201 (1969).Google Scholar
  10. 73Tak:.
    H. Takagi, G. Nishiyama, M. Nakano, and H. Matrumoto,Ber. Dt. Keram, Ges., 50,365 (1973).Google Scholar
  11. 74Aza:.
    S. de Aza, C. Richmond, and J. White,Trans. J. Br. Ceram. Soc., 73,109(1974).Google Scholar
  12. 78Lon:.
    V. Longoand L. Podda,Ceramurgia Ini.,4,21 (1978).CrossRefGoogle Scholar
  13. 79Ans:.
    I. Ansara,Int. Met. Rev., 24,20 (1979).CrossRefGoogle Scholar
  14. 81Stu:.
    VS. Stubican and J.R. Hellmann,Advances in Ceramics, Vol. 3, Science and Technology of Zirconia, A.H. Heuer and L.W. Hobbs, Ed.,Am. Ceram. Soc.,Inc.,Columbus,OH, 25–36(1981).Google Scholar
  15. 82Hel:.
    J.R. Hellmann and V.S. Stubican,Mater. Res. Bull, 17, 459 (1982).CrossRefGoogle Scholar
  16. 83Hel:.
    J.R. Hellmann and V.S. Stubican,J. Am Ceram. Soc, 66, 265 (1983).CrossRefGoogle Scholar
  17. 89Hil:.
    M. Hillert and X.Z. Wang, Internal Report of the Royal Institute of Technology, Sweden, TRTTA-MAC-0382, Nov. 1988;Calphad, 13, 261(1989).Google Scholar
  18. 91Din:.
    OXUNARY data bank, compiled by A.T. Dinsdale, NPL Ted- dington,UK(1991).Google Scholar
  19. 92Dul:.
    Y. DuandZ. Jin, Calphad, 16,22 (1992).Google Scholar
  20. 92Du2:.
    Y. Du, Z.P. Jin, and P.Y. Huang,Calphad, 16,221 (1992).CrossRefGoogle Scholar
  21. 92How:.
    R.A. Howald,Calphad, 16,25 (1992).CrossRefGoogle Scholar
  22. 92Yin:.
    Yan Yin, supervisorsB.B. Argentand A.W. Bryant, Ph.D. thesis, Department of Engineering Materials, University of Sheffield, UK (1992).Google Scholar
  23. 93Yin:.
    Yan Yin and B.B. Argent, “Thermodynamics of ZrO2-CaO and ZrO2-MgO Systems,”J. Phase Equilibria, 14(4), 439–450 (1993).CrossRefGoogle Scholar

Copyright information

© ASM International 1993

Authors and Affiliations

  • Y. Yin
    • 1
  • BJB. Argent
    • 1
  1. 1.Department of Engineering MaterialsUniversity of SheffieldSheffieldUK

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