Electromotive force measurements of U-Zr alloys in LiCl-KCl-UCl3 melt

被引：0

作者：

Pakhui, Gurudas ^{[1
]}

Vijay, Soja. K. ^{[1
]}

Jain, Ashish ^{[1
]}

Ghosh, Suddhasattwa ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Mat Chem & Met Fuel Cycle Grp, Met Fuel & Pyroprocessing Div, Kalpakkam 603102, Tamil Nadu, India

来源：

THERMOCHIMICA ACTA | 2025年 / 745卷

关键词：

Pyroprocessing; U-Zr alloy; Electromotive force; Cyclic voltammetry; Anodic behaviour; Onset potential; CONSTITUENT REDISTRIBUTION; ANODIC-DISSOLUTION; METALLIC FUEL;

D O I：

10.1016/j.tca.2025.179924

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Electromotive force measurements of U-60Zr (79.6 at.% Zr) and U-77Zr (89.7 at.% Zr) alloys in LiCl-KCl-UCl3 melt were carried out in temperature range 670-800 K for determining d f G degrees UZr 2 , the temperature dependence of which was expressed as d f G degrees UZr 2 ( kJ/mol-atom ) = (-59.29 +/- 1.37) + (32.0 +/- 1.9) x 10-3T(K) Correlation suggested stability of S-UZr2 to be higher than what is currently accepted in literature, which is based on its enthalpy of formation at 298.15 K. Cyclic voltammetry with U-Zr alloys as working electrode was also performed in potential range -1.50 to -0.50 Vin LiCl-KCl-UCl3 melt for exploring onset potential of dissolution of uranium and zirconium to address consequences of higher stability of UZr2 on spent metal fuel dissolution.

引用

页数：10

共 49 条

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