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  4. № 52 2019
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The thermodynamic properties of alloys of Al—Er system

V.Sudavtsova,
 
L.Romanova,
 
V.G.Kudin,
 
V.A.Makara
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Adhesion of Melts and Brazing of Materials - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2019, #52
http://www.materials.kiev.ua/article/2880

Abstract

The method calorimetry and the model of ideal associated solutions were used to determine the thermodynamic properties of melts of the Al—Er system for temperatures of 1640 and 1870 K in the range of compositions 0 ≤ xAl ≤ 1,0. It was established that the minimum value of the enthalpy of mixing is −47,8 ± 0,4 kJ / mol under the condition xAl = 0,66, and the activities of the components show very large negative deviations from ideal solutions.


AL, ER, PHASE EQUILIBRIA, THERMODYNAMIC PROPERTIES

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