The excess enthalpies of liquid Ag-Ge-Te and Ag-Sn-Te alloys

Autor(en): Romermann, F
Blachnik, R
Stichwörter: Ag-Ge, Ag-Sn; Ag-GeTe; Ag-Sn-Te; ELEMENTS; enthalpies of mixing; liquid alloys; Metallurgy & Metallurgical Engineering; optimization; PHASE-DIAGRAMS; SYSTEM; THERMODYNAMIC PROPERTIES
Erscheinungsdatum: 2001
Herausgeber: CARL HANSER VERLAG
Journal: ZEITSCHRIFT FUR METALLKUNDE
Volumen: 92
Ausgabe: 4
Startseite: 336
Seitenende: 344
Zusammenfassung: 
The excess enthalpies of Liquid alloys in the ternary systems Ag-Ge-Te and Ag-Sn-Te have been determined in a heat flow calorimeter for three sections AgyGe1-y-Te with y = 0.2, 0.5, and 0.8 at 1213 K and for the section Ag0.5Sn0.5-Te at 973, 1073, and 1173 K to complete recent measurements. The excess enthalpies of both systems are exothermic and decrease with increasing temperature by the dissociation of telluride associates. The enthalpy surface of both systems is determined by a valley of minima from Ag2Te to GeTe and SnTe, respectively. Preceding the analyses of the ternary excess enthalpies the thermodynamic functions of the systems Ag-Ge and Ag-Sn were reoptimized with the Lukas program using the association model of Sommer for the description of the melt. Ternary interactions were taken into account for the analyses of the excess enthalpies of the liquid Ag-Ge-Te and Ag-SnTe alloys.
ISSN: 00443093

Show full item record

Page view(s)

3
Last Week
2
Last month
2
checked on Mar 4, 2024

Google ScholarTM

Check