Abstract
The partial and integral enthalpies of mixing of liquid ternary Ni-Sb-Sn alloys were determined along five sections x(Sb)/x(Sn) = 3:1, x(Sb)/x(Sn) =1:1, x(Ni)/x(Sn) = 1:3. x(Ni)/x(Sn) = 1:4, and x(Ni)/x(Sb) = 1.4 at 1000 degrees C in a large compositional range using drop calorimetry techniques. The mixing enthalpy of Ni-Sb alloys was determined at the same temperature and described by a Redlich-Kister polynomial. The other binary data were carefully evaluated from literature values. Our measured ternary data were fitted on the basis of an extended Redlich-Kister-Muggianu model for substitutional solutions. Additionally, a comparison of these results to the extrapolation model of Toop is given. The entire ternary system shows exothermic values of Delta H-mix ranging from approx. -1300 J/mol, the minimum in the Sb-Sn binary system down to approx. -24,500 J/mol towards Ni-Sb. No significant ternary interaction could be deduced from our data.
Original language | English |
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Pages (from-to) | 33-40 |
Number of pages | 8 |
Journal | Thermochimica Acta |
Volume | 534 |
DOIs | |
Publication status | Published - 2012 |
Austrian Fields of Science 2012
- 104017 Physical chemistry
- 104002 Analytical chemistry