Using first principles calculations we investigated the thermomechanical stability of spent nuclear fuels (SNF), especially how mechanical properties of UO<sub>2</sub>, such as, bulk, shear and Young’s moduli and Poisson’s ratio vary t...
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https://www.riss.kr/link?id=A106288364
( Choa Kwon ) (연세대학교 화공생명공학과) ; ( Kwanpyung Lee ) (연세대학교 화공생명공학과) ; ( Byungchan Han )
2019
-
500
SCOPUS,KCI등재,ESCI
학술저널
368-371(4쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Using first principles calculations we investigated the thermomechanical stability of spent nuclear fuels (SNF), especially how mechanical properties of UO<sub>2</sub>, such as, bulk, shear and Young’s moduli and Poisson’s ratio vary t...
Using first principles calculations we investigated the thermomechanical stability of spent nuclear fuels (SNF), especially how mechanical properties of UO<sub>2</sub>, such as, bulk, shear and Young’s moduli and Poisson’s ratio vary through alpha-decay of U into Th with generation of He gas. Our results indicate that substitution of U by Th through alpha decay (U<sub>1-x</sub>Th<sub>x</sub>O<sub>2</sub>) does not significantly affect the stability of the grain in a fuel matrix. In addition, we studied the transport properties of He in and boundaries of the U<sub>1-x</sub>Th<sub>x</sub>O<sub>2</sub> grain. Helium preferentially resides at the grain boundaries through diffusion. Our study can contribute to substantial reduction of environmentally risk and enhancement of our sustainability by safe control of radioactive materials.
용액 코팅법을 통한 연료전지용 불소계 전해질 강화복합막의 특성에 미치는 분산용매의 영향
Extraction/Separations of Cobalt by Supported Liquid Membrane: A Review
용존 이온 농축을 위한 진공 증발 기술과 하이드레이트 기반 기술의 소모 에너지 비교
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