Calorimetric investigations of the two ternary systems Al-Sn-Zn and Ag-Sn-Zn

Sabine Knott, Hans Flandorfer, Adolf Mikula

Publications: Contribution to journalArticlePeer Reviewed

Abstract

Using a Calvet type calorimeter, the enthalpy of mixing in the two ternary systems, Al-Sn-Zn and Ag-Sn-Zn was determined at 973 K. In the Al-Sn-Zn system, the investigations were carried out along three cross-sections with constant molar ratios of Sn:Zn = 1:2, 1:1 and 2:1 and an aluminium content between 0 and 100 at.%. For the Ag-Sn-Zn system, the measurements have been done at constant molar ratios of Ag:Sn = 1:3, 1:1 and 3:1 with zinc contents between 0 and 50 at.%. The substitutional solution model of Redlich-Kister according to the CALPHAD method was used for a least-square fit of the experimental data in order to get an analytical expression for the integral enthalpy of mixing. The ternary extrapolation models of Kohler, Muggianu, and Toop were applied on the binary data to compare measured, fitted, and extrapolated values.
Original languageEnglish
Pages (from-to)38-44
Number of pages7
JournalInternational Journal of Materials Research
Volume96
Issue number1
Publication statusPublished - 2005

Austrian Fields of Science 2012

  • 1040 Chemistry

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