THERMODYNAMIC PROPERTIES OF Co-Pr ALLOYS

被引：1
|
作者：
Sudavtsova, V. S. [1 ]
Shevchenko, M. O. [1 ]
Kudin, V. G. [2 ]
Romanova, L. O. [1 ]
Ivanov, M. I. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Frantsevich Inst Problems Mat Sci, Kiev, Ukraine
[2] Taras Shevchenko Natl Univ, Kiev, Ukraine
来源：
POWDER METALLURGY AND METAL CERAMICS | 2017年 / 56卷 / 1-2期
关键词：
thermodynamic properties; cobalt; praseodymium; calorimetry;
D O I：
10.1007/s11106-017-9876-6
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The mixing enthalpies of the Co-Pr liquid binary alloys are determined by isoperibol calorimetry in the composition ranges 0 < x(Pr) < 0.23 and 0.4 < x(Pr) < 1 at 1500-1820 K. The thermodynamic properties of the Co-Pr liquid binary alloys are calculated for the entire composition range using the model of ideal associated solutions. The thermodynamic activities of components show negative deviations from the ideal behavior; the mixing enthalpies are characterized by moderate exothermic effects. The minimum mixing enthalpy of melts is -12.0 kJ/mol at x(Pr) = 0.46.
引用
收藏
页码：94 / 101
页数：8
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