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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 915 - 922 (8page)
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Metallic fuel has been considered for sodium-cooled fast reactors because it can maximize the uraniumresources. It generates rare earth elements as fission products, where it is reported by aggravating thefuelecladding chemical interaction at the operating temperature. Rare earth elements form a multicomponentalloy (CeeNdePreLaeSmeetc.) during reactor operation, where it shows a higher reactionthickness than a single element. Experiments have been carried out by simplifying multicomponentalloys for mono or binary systems because complex alloys have difficulty in the analysis. In previousexperiments, xCe-yNd was fabricated with two elements, Ce and Nd, which have a major effect on thefuelecladding chemical interaction, and the thickness of the reaction layer reached maximum when therare earth elements ratio was 1:1. The objective of this study is to evaluate the effect and relationship ofrare earth elements on such synergistic behavior. Single and binary rare earth model alloys were preparedby selecting five rare earth elements (Ce, Nd, Pr, La, and Sm). In the single system, Nd and Prbehaviors were close to diffusion, and Ce showed a eutectic reaction. In the binary system, Ce and Smfurther increased the reaction layer, and La showed a non-synergy effect.
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