FORMATION OF COLUMNAR U3O8 GRAINS ON THE OXIDATION OF UO2 PELLETS IN AIR AT 900-DEGREES-C

被引：0
|
作者：
SONG, KW
YANG, MS
机构：
[1] Korea Atomic Research Institute, Taejon, Korea, Republic of
来源：
JOURNAL OF NUCLEAR MATERIALS | 1994年 / 209卷 / 03期
关键词：
D O I：
10.1016/0022-3115(94)90262-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
UO2 is oxidized to U3O8 in air at 900-degrees-C via two intermediate oxide phases; UO2+x and U4O9. U3O8 grains are formed in random orientation near the specimen surface, but only the grains having their c-axes parallel to the specimen surface grow inward preferentially enough to be developed into columnar grains. Such preferred orientation can reduce minimize the transformation-induced strain.
引用
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页码：270 / 273
页数：4
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