3 원계 열역학 자료의 OptimizationOptimization of Ternary Thermodynamic Data

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The various analytical expressions for the free energies of pure metals, binary and ternary solution phases were discussed. The methods of obtaining parameters in the expressions from experimental data were also described in detail. The methods were used to optimize thermodynamic data of eight binary systems and activities of components of the Ag-Sn-Pb system at 1073˚K, the Bi-Cd-Pb and Sn-Cd-Pb systems at 773˚K. The correction terms added to the ternary model equations such as the Kohler, Toop, and Muggianu equations improved the calculated values within the experimental error, in which the correlation coefficients were larger than 0.98 for the three ternary systems. The published activities of Ag and Pb in the Ag-Sn-Pb were found to be erroneous because wrong equations were used. The corrected activities were calculated using the above method without the Darken integration.
Publisher
KOREAN INST METALS MATERIALS
Issue Date
1984-04
Language
English
Citation

JOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS, v.22, no.4, pp.398 - 407

ISSN
1738-8228
URI
http://hdl.handle.net/10203/55855
Appears in Collection
MS-Journal Papers(저널논문)
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