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Thermodynamic Properties of Binary Ce–In Alloys

M.Ivanov,
 
† V.Berezuckiy,
 
M.O.Shevchenko,
 
V.Sudavtsova
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2015, #03/04
http://www.materials.kiev.ua/article/1921

Abstract

The mixing enthalpies of liquid binary Ce–In alloys (0 < xIn < 1) at 1500 K are determined by isoperibol calorimetry. The thermodynamic properties of the liquid Ce–In alloys are calculated for the entire composition range using the model of ideal associated solutions. The thermodynamic activities of melt components show negative deviations from the ideal behavior. The mixing enthalpies are characterized by significant exothermic effects. The minimum mixing enthalpies of the melts are –43.8 ± 0.2 kJ/mol at xIn = 0.57.


CE–IN ALLOY, MIXING ENTHALPY, MIXING ENTROPY, MODEL OF IDEAL ASSOCIATED SOLUTIONS

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