Metallurgical Transactions B

, Volume 10, Issue 4, pp 545–549 | Cite as

On the thermodynamic properties of the phases zeta and AuSn in the system Au-Sn

  • A. K. Jena
  • M. B. Bever
Physical Chemistry


Metal solution calorimetry has been used to measure the low temperature heats of formation and heat contents of two phases in the systemAu-Sn. The heats of formation of zeta containing 11.1, 14.0 and 16.0 at. pct Sn and AuSn at 78 K and of zeta containing 16.0 at. pct Sn and AuSn at 195 and 273 K have been measured. The heat contents (H 273K-H 78K) and (H 195K-H 78K) of zeta (16· at · pct Sn)and AuSn have also been measured. Heat contents at several temperatures and the standard heat and free energy of formation of AuSn at 298 K have been calculated. The stability of zeta and the unusual composition dependence of its heat of formation have been discussed in terms of its electronic structure.


Heat Content Metallurgical Transaction Heat Effect Excess Entropy Solid Gold 
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Copyright information

© American Society for Metals and the Metallurgical Society of AIME 1979

Authors and Affiliations

  • A. K. Jena
    • 1
  • M. B. Bever
    • 2
    • 3
  1. 1.Department of Metallurgical EngineeringIndian Institute of TechnologyKanpurIndia
  2. 2.Materials Science and EngineeringEmeritus
  3. 3.Massachusetts Institute of TechnologyCambridge

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