| UO2 및 (U1-yCey)O2 소결체의 열팽창 측정 및 평가 |
| 김동주, 김용수1, 이영우2 |
한양대학교 원자력공학과, 한국원자력연구소 미래형원자로연료개발부
1한양대학교 원자력공학과
2한국원자력연구소 미래형원자로연료개발부 |
| The Linear Thermal Expansion Measurements and Estimations for UO2 and (U1-yCey)O2 Pellet |
| Dong-Joo Kim, Yong-Soo Kim1, Young-Woo Lee2 |
Department of Nuclear Engineering, Hanyang University, Korea Atomic Energy Research Institute
1Department of Nuclear Engineering, Hanyang University
2Korea Atomic Energy Research Institute |
|
|
|
|
|
| ABSTRACT |
|
The linear thermal expansions of $UO_2$ and $(U_{1-y}Ce_y)O_2$ pellet were measured from room temperature to $1400^{circ}C$ as a function of Ce contents (0, 7.63, 14.84, and $21.68 mol%$) by using the TMA(Thermo-Mechanical Analysis) method. From the measured data, the linear thermal expansion rate, the coefficient of linear thermal expansion and density variation with temperature were calculated, and the best-fitted temperature-dependent equations were recommended. It was shown that the rate and coefficient of $(U_{1-y}Ce_y)O_2$ thermal expansion increased and the density decreased with increasing Ce contents. |
| Key words:
Linear thermal expansion, Thermo-mechanical analysis, Uranium dioxide, Mired oxide fuel |
|
PDF Links
Full text via DOI
Download Citation 
