Record number :
1200620
Title of article :
Measurement of zinc activity in the ternary In–Zn–Sn alloys by EMF method
Author/Authors :
C.K. Behera، نويسنده , , A. Sonaye، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2013
Pages :
8
From page :
196
To page :
203
Abstract :
Activity of zinc in liquid In–Zn–Sn alloys has been measured by electrochemical technique based on molten salt electrolyte galvanic cell in the temperature range 753–853 K along three ternary sections of Znx(InySn1−y)1−x where y = 0.67, 0.50 and 0.33. The activity of indium in In–Sn binary alloys has also been measured by the same technique in the same temperature range. The activity of Zinc in In–Zn–Sn alloys shows positive deviation from the Raoultʹs law over entire range of composition. The activity of indium in In–Sn alloys shows negative deviations from ideality for entire composition. The excess molar free energies have been computed by the Darkenʹs treatment of the ternary solutions using In–Sn binary data and ternary data in this study. Isoactivity curves at 813 K in the ternary In–Zn–Sn alloys were derived by combining the activity data of In–Zn and Sn–Zn alloys. The values of excess molar free energy in this study are in good agreement with those calculated from the general model calculation proposed by Chou.
Keywords :
Ternary , Isoactivity , activity , Raoultיs law , In–Zn–Sn system
Journal title :
Thermochimica Acta
Serial Year :
2013
Link To Document :
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