Thermal expansion of near stoichiometric (U,Er)O2 solid solutions

被引:3
|
作者
Kim, SH
Kim, HS
Lee, YW
Sohn, DS
Suhr, DS
机构
[1] Korea Atom Energy Res Inst, Taejon 305600, South Korea
[2] Chungnam Natl Univ, Dept Mat Engn, Taejon 305764, South Korea
关键词
ceramics; thermal properties; thermal expansion coefficient;
D O I
10.1016/j.matlet.2005.11.052
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Thermal expansions of (U,Er)O-2 solid solutions were investigated between room temperature and 1673 K by using a thermo-mechanical analyzer. Lattice parameters of the (U,Er)O-2 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)O-2 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)O-2 are 10.94 x 10(-6) and 11.42 x 10(-6) K-1, respectively. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:1480 / 1483
页数:4
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