DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Ryu, Ho Jin | - |
dc.contributor.advisor | 류호진 | - |
dc.contributor.author | Seong, HyunWoo | - |
dc.date.accessioned | 2021-05-11T19:32:57Z | - |
dc.date.available | 2021-05-11T19:32:57Z | - |
dc.date.issued | 2019 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=875310&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/283017 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 원자력및양자공학과, 2019.8,[iii, 29 p. :] | - |
dc.description.abstract | During irradiation, rare earth elements (REEs) tend to be redistributed to the outer region of fuel along the temperature gradient. The migration of REEs lead to the fuel-cladding chemical interaction which causes fuel failure. Accurate phase diagrams of U-Zr-REEs and U-TRU-Zr-REEs are needed to analyze this phenomenon. However, existing phase diagrams are calculated based on insufficient experimental data particularly. In this study, the solubility limits of $\gamma$-Ce in $\alpha$-U and $\alpha$-Zr are calculated by using first principles and phonon calculations based on density functional theory (DFT) to improve the binary phase diagrams of Ce-U and Ce-Zr. From these calculation results, binary phase diagrams of Ce-U and Ce-Zr were calculated and compared with existing literature data. The ternary phase diagram of the U-Zr-Ce is modeled by extrapolations of new binary phase diagrams obtained from the calculations. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Metallic fuels▼aREE▼aphase diagram▼asolubility limit▼aDFT▼afirst principles▼aphonon calculations | - |
dc.subject | 금속연료▼a희토류 원소▼a상태도▼a용해도▼a밀도 범함수 이론▼a제1원리▼a포논 계산 | - |
dc.title | Modeling the phase diagram of U-Zr-Ce metallic fuel and calculating solubility limit of Ce in U and Zr by using first principles and phonon calculations | - |
dc.title.alternative | 제1원리 및 포논 계산을 이용하여 Ce의 용해도 계산 및 U-Zr-Ce 금속연료 상태도 모델링 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :원자력및양자공학과, | - |
dc.contributor.alternativeauthor | 성현우 | - |
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