Inorganic Materials: Applied Research

, Volume 1, Issue 4, pp 324–328 | Cite as

Coordination cluster model for calculating Sievert’s constant of hydrogen solutions in melts of the Pb-Bi-Li system

  • V. P. Krasin
  • S. I. Soyustova
  • I. E. Lyublinskii
Article

Abstract

The coordination cluster method is used to calculate Sievert’s constant in dilute hydrogen solutions of the Pb-Bi-Li system for alloys in which the concentration ratio X Pb/X Bi is the same as in the binary Pb-Bi alloy (45.5 : 55.5), while the lithium concentration is no higher than 1.5 wt %. The calculations are made at temperatures of 250–700°C. The results of the calculations in terms of the coordination cluster model (CCM) are in satisfactory agreement with the experimental data obtained earlier for the Pb-Li-H system. It is shown for the quaternary Pb-Bi-Li-H system that, at each temperature, the change in the hydrogen pressure with an increase in its concentration of the melt is limited by the equilibrium pressure of the formation of lithium hydride. In the same way as the binary Li17Pb83 eutectic, upon transition to the two-phase range, the hydrogen pressure stops growing as the hydrogen concentration of the system increases. It follows from the calculation results that the thermodynamic characteristics (Sievert’s constant and the limiting solubility X H(Pb-Bi-Li)) of hydrogen solutions in the ternary Pb-Bi-Li system (X Pb = 34.2 at %, X Bi = 42.8 at %, and X Li = 23 at %) approach the corresponding characteristics of the binary Li17Pb83 eutectic.

Key words

coordination cluster model Sievert’s constant lithium hydride equilibrium pressure first coordination sphere 

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References

  1. 1.
    Moriyma, H., Tanaka, S., and Sze, D.K., Tritium Recovery from Liquid Metals, Fusion Eng. Design, 1995, vol. 28, pp. 226–239.Google Scholar
  2. 2.
    Aiello, A., Benamati, G., and Chini, M., Hydrogen Permeation through Tritium Permeation Barrier in Pb-17Li, Fusion Eng. Design, 2001, vols. 58–59, part B, pp. 737–742.CrossRefGoogle Scholar
  3. 3.
    Mikhailov, V.N., Evtikhin, V.A., Lyublinskii, I.E., et al., Litii v termoyadernoi i kosmicheskoi energetike XXI (Lithium in Thermonuclear and Space Power Engineering in XXI Century), Moscow: Energoatomoizdat, 1999.Google Scholar
  4. 4.
    Rogers, A.G., Benedict, B.L., and Clemmer, R.G., Liquid Li-Pb-Bi a New Tritium Breeder, Proc. 9th Symp. on Engineering Problems of Fusion Research, Chicago, Illinois, Oct. 26–29 1981, pp. 217–220.Google Scholar
  5. 5.
    Chan, Y.C. and Veleckis, E.A., A Thermodynamic Investigation of Dilute Solutions of Hydrogen in Liquid Li-Pb Alloys, J. Nucl. Mater., 1984, vols. 122–123, pp. 935–940.CrossRefGoogle Scholar
  6. 6.
    Krasin, V.P., Application of Solution Models for the Prediction of Corrosion Phenomena in Liquid Metals, in Liquid Metal Systems — Material Behavior and Physical Chemistry in Liquid Metal Systems, Borgstedt, H.U. and Frees, G., Eds., New York: Plenum Press, 1995, pp. 305–309.Google Scholar
  7. 7.
    Lyublinski, I.E., Evtikhin, V.A., and Krasin, V.P., Numerical and Experimental Determination of Metallic Solubilities in Liquid Lithium, Lithium-Containing Nonmetallic Impurities, Lead and Lead-Lithium Eutectic, J. Nucl. Mater., 1995, vol. 224, pp. 288–292.CrossRefGoogle Scholar
  8. 8.
    Saboungi, M.-L., Caveny, D., Bloom, I., and Blander, M., The Coordination Cluster Theory: Extension to Multicomponent Systems, Metall. Trans. A, 1987, vol. 18A, pp. 1779–1783.Google Scholar
  9. 9.
    Paderin, S.N. and Filippov, V.V., Teoriya i raschety metallurgicheskikh sistem i protsessov (Theory and Calculations of Metallurgical Systems and Processes), Moscow: MISIS, 2002.Google Scholar
  10. 10.
    Hubberstey, P. and Sample, T., Thermodynamics of Pb-17Li-Bismuth Interactions, J. Nucl. Mater., 1994, vols. 212–215, pp. 1021–1025.CrossRefGoogle Scholar
  11. 11.
    Smithells, C.J., Metals Reference Book, London: Butterworths, 1962; Moscow: Metallurgiya, 1980.Google Scholar
  12. 12.
    Arnol’dov, M.N., Ivanovskii, M.N., Milovidova, A.V., and Morozov, V.A., Hydrogen Permeability and Solubility in Lead-Bismuth Melt of Eutectic Composition, Teplofiz. Vys. Temp., 2004, vol. 42, no. 5, pp. 714–717.Google Scholar
  13. 13.
    Pierini, G., Polcaro, A.M., Ricci, P.F., and Viola, A., Solubility of Hydrogen in Molten Li17Pb83 Alloy, Chem. Eng. Data, 1984, vol. 29, pp. 250–255.CrossRefGoogle Scholar
  14. 14.
    Wu, C.H., The Solubility of Deuterium in Lithium-Lead Alloys, J. Nucl. Mater., 1983, vol. 114, pp. 30–33.CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • V. P. Krasin
    • 1
  • S. I. Soyustova
    • 1
  • I. E. Lyublinskii
    • 2
  1. 1.Moscow State Industrial UniversityMoscowRussia
  2. 2.FGUP Krasnaya ZvezdaMoscowRussia

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