Calorimetric studies on urania-thoria solid solutions

被引：14

作者：

Anthonysamy, S

Joseph, J

Rao, PRV ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Div Fuel Chem, Kalpakkam 603102, Tamil Nadu, India

[2] Indira Gandhi Ctr Atom Res, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2000年 / 299卷 / 1-2期

关键词：

urania-thoria solid solutions; enthalpy increments; drop calorimetry;

D O I：

10.1016/S0925-8388(99)00744-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The enthalpy increments of (UyTh1-y)O-2 solid solutions With y=0.1, 0.5 and 0.9 were measured by using a drop calorimeter of isoperibol type. The experimental data cover the temperature range 473-973 K relative to 298 K. Other thermodynamic functions such as heat capacity, entropy and free energy function of these solid solutions were derived from the measured enthalpy increment values. The results indicate that the enthalpies of (UyThy-1)O-2 solid solutions in the temperature range 373-973 K obey the Neumann-Kopp molar additivity rule. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：112 / 117

页数：6

共 14 条

[1] THE OXIDES OF URANIUM .4. THE SYSTEM UO2-THO2-O [J].