Electroformation of uranium hemispherical shells

Marshall, Stephanie Pace; Redey, L.; Vandegrift, G. F.; Vissers, D.R.

doi:10.2172/5274651

Cited by 8 publications

(3 citation statements)

References 5 publications

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“…Since the deposited U metal was not completely dissolved, the electrode surface area started to vary subsequently. This finding will be applied for the pulsed electrodeposition approach, resulting in less dendritic deposits (i.e., more compact deposits) by decreasing surface free energy [30,31]. To our knowledge, this is the first report on the determination of frequency used in the pulse technique which will enhance the efficiency of U recovery system.…”

Section: The Redox Reaction Of U 3+ /U Couple On a Liquid CD Electrodementioning

confidence: 89%

A study on the electrochemical deposition behavior of uranium ion in a LiCl–KCl molten salt on solid and liquid electrode

Kim

Yoon

Paek

et al. 2012

Journal of Electroanalytical Chemistry

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Section: The Redox Reaction Of U 3+ /U Couple On a Liquid CD Electrodementioning

confidence: 89%

A study on the electrochemical deposition behavior of uranium ion in a LiCl–KCl molten salt on solid and liquid electrode

Kim

Yoon

Paek

et al. 2012

Journal of Electroanalytical Chemistry

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“…The bulky dendrite deposit which is usually obtained at the cathode sometimes hinders the overall process efficiency by dropping off the deposit, a short circuit of the cell and an entrainment of the salt in a uranium deposit. Several attempts have been reported to improve the U morphology by replacing the electrode materials, 13) changing the chemical compositions of the electrolytes 14) and several processing parameters. 15) None of them have been successful in changing the morphology or quantifying the metallurgical features.…”

Section: Electrorefining Of Uraniummentioning

confidence: 99%

Electrodeposition Characteristics of Uranium in Molten LiCl-KCl Eutectic and its Salt Distillation Behavior

Lee

Kang

Hwang

et al. 2006

J. Nucl. Sci. Technol.

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Electrorefining experiments with a crucial anode containing U, elemental rare earths; Gd, Nd and Ce or Nd 2 O 3 were carried out in KCl-LiCl eutectic melt at 500 C. Partitioning behavior of the components according to the applied voltage or current was investigated at various initial U concentrations in a molten salt. Elemental REs concentrations in the cathode deposits increased as the applied voltage decreased at a low initial UCl 3 concentration, while they were maintained at a very low level at a higher concentration than $6 wt%. Nd 2 O 3 also shows a similar electrochemical behavior with the elemental REs. This means that rare earth oxides which are inherently incorporated in a U ingot can be partitioned during an electrorefining. The dependency of the applied current on the microstructure of the deposit was also discussed. From a variation of the cell resistance according to the rotation speed of the anode, a concentration polarization was detected below 3 wt% of UCl 3 in the molten salt, but not above 6 wt%. Pure uranium ingot was obtained after a distillation of the salt from the deposit.

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“…The next cycle of experiments in ANL was directed towards the production of nondendritic electrorefined uranium (11). Uranium electrodeposition was performed in UCl 3conaining chloride melts and UF 4 -containing chloride-fluoride baths at 440-560 ºC.…”

Section: Introductionmentioning

confidence: 99%

Uranium Electrorefining in 3LiCl-2KCl Based Melts

et al. 2020

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The process of uranium electrorefining in 3LiCl–2KCl based melts was investigated. Dense and compact uranium deposits were obtained at low current densities, while application of relatively high current densities led to the formation of uranium dendrites. Cathodic current efficiency in the majority of experiments confirmed the three-electron scheme of uranium reduction. Cathodic current efficiency under certain conditions exceeded 95%. The amount of salt retained in the cathodic deposit varied from 7 to 26%, these values typical for dendrite electrolytic metals.

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Electroformation of uranium hemispherical shells

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Cited by 8 publications

References 5 publications

A study on the electrochemical deposition behavior of uranium ion in a LiCl–KCl molten salt on solid and liquid electrode

A study on the electrochemical deposition behavior of uranium ion in a LiCl–KCl molten salt on solid and liquid electrode

Electrodeposition Characteristics of Uranium in Molten LiCl-KCl Eutectic and its Salt Distillation Behavior

Uranium Electrorefining in 3LiCl-2KCl Based Melts

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