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Sohn, Dong-Seong
Innovative Nuclear FUEL(INFUEL)
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Thermal expansion of near stoichiometric (U,Er)O-2 solid solutions

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Title
Thermal expansion of near stoichiometric (U,Er)O-2 solid solutions
Author
Kim, SHKim, HSLee, YWSohn, Dong-SeongSuhr, DS
Keywords
Ceramics; Thermal expansion coefficient; Thermal properties
Issue Date
200606
Publisher
ELSEVIER SCIENCE BV
Citation
MATERIALS LETTERS, v.60, no.12, pp.1480 - 1483
Abstract
Thermal expansions of (U,Er)O2 solid solutions were investigated between room temperature and 1673 K by using a thermo-mechanical analyzer. Lattice parameters of the (U,Er)O2 pellets are lower than that of UO2 and they decrease as the Er contents increase. The linear thermal expansion and average thermal expansion coefficients of (U,Er)O2 are higher than that of UO2. For the temperature range from room temperature to 1673 K, the average thermal expansion coefficient values for UO2 and (U0.8Er0.2)O2 are 10.94 × 10- 6 and 11.42 × 10- 6 K- 1, respectively.
URI
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DOI
http://dx.doi.org/10.1016/j.matlet.2005.11.052
ISSN
0167-577X
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