Atomic volumes and volume functions for Ag−Cu alloys

  • Youqing Xie
  • Xiaodong Zhang


Nine functions of atomic volume interaction have been established. The values of average atomic volumes and lattice constants of Ag−Cu alloys obtained from each V-function are, respectively, equal to each other and in good agreement with experimental values. But the average atomic volumes of components and the volumes of characteristic atoms obtained from each V-function are different from each other. Only after the correlative study of energy, volume and electronic structure is carried out, can the V-function be correctly chosen, can a knowledge system about the alloys be established, thus providing the base for scientific design of new alloys. The relationships between lattice parameters of metastable phases of Ag−Cu alloys and composition and between average properties and partial molar properties of components are discussed.


Ag−Cu alloys atomic volume lattice constant partial molar property 


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  1. 1.
    Xie, Y. Q., Tang, R. Z., Lu, A. X. et al., A review and thinking of materials design,Materials Review (in Chinese), 1995, 2: 1.Google Scholar
  2. 2.
    Xie, Y. Q., A new potential function with many-atom interactions in solid,Science in China, Ser. A, 1993, 36(1): 90.Google Scholar
  3. 3.
    Xie, Y. Q., Electronic structure and properties of pure iron,Acta Metall. Mater., 1994, 42(11): 3705.CrossRefGoogle Scholar
  4. 4.
    Xie, Y. Q., Atomic energies and Gibbs energy functions of Ag−Cu alloys,Science in China, Ser. E, 1998, 41(2): 146.CrossRefGoogle Scholar
  5. 5.
    Lupis, C. P. P.,Chemical Thermodynamics of Materials, Amsterdam: North-Holland, 1983, 438–469.Google Scholar
  6. 6.
    Subramanian, P. R., Ferepezko, J. H., The Ag−Cu (silver-copper) system,Journal of Phase Equilibria, 1993 14(1): 62.CrossRefGoogle Scholar

Copyright information

© Science in China Press 1998

Authors and Affiliations

  • Youqing Xie
    • 1
  • Xiaodong Zhang
    • 1
  1. 1.Department of Materials Science and EngineeringCentral South University of TechnologyChangshaChina

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