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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2013.11
- 수록면
- 474 - 474 (1page)
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초록· 키워드
A sodium-cooled fast reactor (SFR) has been selected as one of the most probable reactors for the next-generation power plant in Korea because it can maximize fuel utilization as well as minimize the amount of light water reactor (LWR) spent fuel. Metallic fuel has been selected as a candidate fuel in the SFR because of its superior thermal conductivity as well as enhanced proliferation resistance in connection with the pyroprocessing. However, metallic fuel suffers eutectic reaction (FCCI) with the fuel cladding made of stainless steel at reactor operating temperature so that cladding thickness gradually reduces to endanger reactor safety. In order to mitigate FCCI, diffusion barrier concept has been proposed between the fuel and the cladding in designing fuel rod. Regarding this, KAERI has initiated surface treatment technology to prevent interdiffusion process as well as enhance the SFR fuel performance. This paper describes the brief development status regarding the surface treatment technology in KAERI for the usage of fuel in SFR. Selection of candidate barrier material has been performed in the first step. Zr, Nb, Ti, Mo, Ta, V and Cr metallic foil whose thickness was no more than 20μm was selected then screening test like the diffusion couple test was conducted. After the screening test, V and Cr revealed to be excellent FCCI resistance by suppressing both interdiffusion and eutectic reaction. Not only selecting the right barrier material, but also setting up the relevant coating process was scoped because surface treatment was applied at difficult po ... 전체 초록 보기
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UCI(KEPA) : I410-ECN-0101-2016-581-001775558
