Applicability of CeO2 as a surrogate for PuO2 in a MOX fuel development

Kim, Han Soo; Joung, Chang-Young; Lee, Byung Ho; Oh, Jae Yong; Koo, Yang-Hyun; Heimgartner, P.

doi:10.1016/j.jnucmat.2008.05.003

Cited by 116 publications

(57 citation statements)

References 22 publications

(25 reference statements)

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“…The peculiarity of the KAERI MOX fabrication processes is in the preparation process of the powder mixture, which uses the continuous type attrition mill [6] and the sintering of MOX compacts in a slightly oxidizing atmosphere [5]. The attrition mill consists of a vertical axis with impellers and two jars that are separated by an inconel grid into an upper and a lower part.…”

Section: Fuel Fabricationmentioning

confidence: 99%

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Ceramography Analysis of Mox Fuel Rods After an Irradiation Test

Kim

Jong²,

Lee³

et al. 2010

Nuclear Engineering and Technology

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Section: Fuel Fabricationmentioning

confidence: 99%

“…KAERI has developed the MOX fuel fabrication process using cerium oxides as a surrogate for PuO2 [5]. As part of the framework of the cooperation project between KAERI and PSI, MOX fuel pellets were fabricated in PSI using the KAERI processes for an irradiation test in the Halden reactor.…”

Section: Introductionmentioning

confidence: 99%

Ceramography Analysis of Mox Fuel Rods After an Irradiation Test

Kim

Jong²,

Lee³

et al. 2010

Nuclear Engineering and Technology

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“…Control rods are very important in both operating and accident conditions because nuclear reactivity needs to be controlled to safely operate a nuclear reactor [1]. The advantages of using gray control rods to control nuclear reactivity are that they greatly reduce the daily dealing with reactor coolant, distinctly simplify the chemical and tolerant control system and its operation, significantly decrease high expense for short time change, and also make the nuclear reactor safer [2][3].…”

Section: Introductionmentioning

confidence: 99%

Microstructural Evolution, Thermodynamics and Kinetics of Mo-Tm<sub>2</sub>O<sub>3</sub> Powder Mixtures during Ball Milling

Luo

Ran

Chen

et al. 2016

Preprint

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Abstract:The microstructural evolution, thermodynamics and kinetics of Mo-21%Tm2O3 (mass fraction, %) powder mixtures during ball milling were investigated using X-ray diffraction and transmission electron microscopy. Ball milling induced Tm2O3 to be decomposed and then dissolved into Mo crystal. The supersaturated nanocrystalline solid solution of Mo (Tm, O) was obtained after 96 h of ball milling. The elements of Mo, Tm and O were distributed uniformly in the ball-milled particles. Based on the semi-experimental theory of Miedema, a thermodynamic model was developed to calculate the driving force of phase evolution. There was no chemical driving force to form a crystal solid solution of Tm atoms in Mo crystal or an amorphous phase because the Gibbs free energy for both processes was higher than zero. For Mo-21%Tm2O3, it was mechanical work, not negative heat of mixing, that provided the driving force to form supersaturated nanocrystalline Mo (Tm, O) solid solution.

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“…Rare earth oxides, especially samarium oxide and europium oxide, because of their big neutron capture section, are harmful for the nuclear fuel cycle [1][2][3][4] . As the similar properties between lanthanides and actinides, they are difficult to be separated from spent nuclear fuel.…”

Section: Introductionmentioning

confidence: 99%

Separation of SmCl3 from SmCl3-DyCl3 system by Electrolysis in KCl-LiCl-MgCl2 Molten Salts

et al. 2013

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Pyrometallurgical reprocessing of spent nuclear fuel was now considered as one of the most promising options for an innovative nuclear fuel cycle. In this paper, the electrochemical behavior of Sm(III) and Dy(III) was studied by cyclic voltammetry in KCl-LiCl molten salts. Addition of magnesium chloride resulted in positive deposition potential of Dy(III), lower electrolysis temperature and higher recovery ratio of rare earth. According to different deposition potentials of Sm(III) and Dy(III), electrolysis in the molten KCl-LiCl-MgCl 2 system constituted the main step in this reprocess, where SmCl 3 was separated from the SmCl 3 -DyCl 3 system at -2.20 V (vs. Ag/AgCl reference electrode) and the DyCl 3 were formed the Dy-Mg alloys. It was proved that the main structures of the obtained alloys were Dy and DyMg 3 without Sm by the analysis of XRD of alloys.

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Applicability of CeO2 as a surrogate for PuO2 in a MOX fuel development

Cited by 116 publications

References 22 publications

Ceramography Analysis of Mox Fuel Rods After an Irradiation Test

Ceramography Analysis of Mox Fuel Rods After an Irradiation Test

Microstructural Evolution, Thermodynamics and Kinetics of Mo-Tm<sub>2</sub>O<sub>3</sub> Powder Mixtures during Ball Milling

Separation of SmCl3 from SmCl3-DyCl3 system by Electrolysis in KCl-LiCl-MgCl2 Molten Salts

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