Thermodynamic properties of uranium in liquid gallium, indium and their alloys

V. A. Volkovich; D. S. Maltsev; L. F. Yamshchikov; A. G. Osipenko

doi:10.1016/j.jnucmat.2015.04.054

Thermodynamic properties of uranium in liquid gallium, indium and their alloys

V. A. Volkovich, D. S. Maltsev, L. F. Yamshchikov, A. G. Osipenko

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

Activity, activity coefficients and solubility of uranium was determined in gallium, indium and gallium-indium alloys containing 21.8 (eutectic), 40 and 70 wt.% In. Activity was measured at 573-1073 K employing the electromotive force method, and solubility between room temperature (or the alloy melting point) and 1073 K employing direct physical measurements. Activity coefficients were obtained from the difference of experimentally determined temperature dependencies of uranium activity and solubility. Intermetallic compounds formed in the respective alloys were characterized using X-ray diffraction. Partial and excess thermodynamic functions of uranium in the studied alloys were calculated. Liquidus lines in U-Ga and U-In phase diagrams from the side rich in gallium or indium are proposed.

Original language	English
Pages (from-to)	263-269
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	464
DOIs	https://doi.org/10.1016/j.jnucmat.2015.04.054
State	Published - Sep 1 2015
Externally published	Yes

Funding

The authors thank Dr. A.V. Chukin and Dr. A.K. Schtoltz for their help with X-ray diffraction measurements and DSM thanks Ministry of Education and Science (Russia) , Project No. N976.42G.04114, and Russian Foundation for Basic Research , Contract No. 14-03-31329, for the financial support.

Funders	Funder number
Russian Foundation for Basic Research	14-03-31329
Ministry of Education and Science of the Russian Federation	N976.42G.04114

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abstract = "Activity, activity coefficients and solubility of uranium was determined in gallium, indium and gallium-indium alloys containing 21.8 (eutectic), 40 and 70 wt.% In. Activity was measured at 573-1073 K employing the electromotive force method, and solubility between room temperature (or the alloy melting point) and 1073 K employing direct physical measurements. Activity coefficients were obtained from the difference of experimentally determined temperature dependencies of uranium activity and solubility. Intermetallic compounds formed in the respective alloys were characterized using X-ray diffraction. Partial and excess thermodynamic functions of uranium in the studied alloys were calculated. Liquidus lines in U-Ga and U-In phase diagrams from the side rich in gallium or indium are proposed.",

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AU - Volkovich, V. A.

AU - Maltsev, D. S.

AU - Yamshchikov, L. F.

AU - Osipenko, A. G.

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Activity, activity coefficients and solubility of uranium was determined in gallium, indium and gallium-indium alloys containing 21.8 (eutectic), 40 and 70 wt.% In. Activity was measured at 573-1073 K employing the electromotive force method, and solubility between room temperature (or the alloy melting point) and 1073 K employing direct physical measurements. Activity coefficients were obtained from the difference of experimentally determined temperature dependencies of uranium activity and solubility. Intermetallic compounds formed in the respective alloys were characterized using X-ray diffraction. Partial and excess thermodynamic functions of uranium in the studied alloys were calculated. Liquidus lines in U-Ga and U-In phase diagrams from the side rich in gallium or indium are proposed.

AB - Activity, activity coefficients and solubility of uranium was determined in gallium, indium and gallium-indium alloys containing 21.8 (eutectic), 40 and 70 wt.% In. Activity was measured at 573-1073 K employing the electromotive force method, and solubility between room temperature (or the alloy melting point) and 1073 K employing direct physical measurements. Activity coefficients were obtained from the difference of experimentally determined temperature dependencies of uranium activity and solubility. Intermetallic compounds formed in the respective alloys were characterized using X-ray diffraction. Partial and excess thermodynamic functions of uranium in the studied alloys were calculated. Liquidus lines in U-Ga and U-In phase diagrams from the side rich in gallium or indium are proposed.

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ER -

Thermodynamic properties of uranium in liquid gallium, indium and their alloys

Abstract

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