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http://dx.doi.org/10.4191/KCERS.2005.42.5.346

The Linear Thermal Expansion Measurements and Estimations for UO2 and (U1-yCey)O2 Pellet  

Kim, Dong-Joo (Department of Nuclear Engineering, Hanyang University, Korea Atomic Energy Research Institute)
Kim, Yong-Soo (Department of Nuclear Engineering, Hanyang University)
Lee, Young-Woo (Korea Atomic Energy Research Institute)
Publication Information
Journal of the Korean Ceramic Society / v.42, no.5, 2005 , pp. 346-351 More about this Journal
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.
Keywords
Linear thermal expansion; Thermo-mechanical analysis; Uranium dioxide; Mired oxide fuel;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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