Refinement of the α-U4O9 Crystalline Structure: New Insight into the U4O9 → U3O8 Transformation
收藏Figshare2016-02-23 更新2026-04-29 收录
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https://figshare.com/articles/dataset/Refinement_of_the_U_sub_4_sub_O_sub_9_sub_Crystalline_Structure_New_Insight_into_the_U_sub_4_sub_O_sub_9_sub_U_sub_3_sub_O_sub_8_sub_Transformation/2633791
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The oxidation reaction of UO2 into U3O8 is studied as a function of the crystalline distortion of interstitial oxygen clusters, named cuboctahedra, which appear in U4O9 and U3O7 intermediate phases. For that purpose, the refinement of α-U4O9 was performed because this phase undergoes a trigonal distortion from cubic β-U4O9 when the temperature is decreased. In α-U4O9, the cuboctahedra can be described as crumpled sheets taken from a fragment of U3O8. The manner by which the accumulation of crumpled sheets can lead to the formation of U3O8 is discussed.
创建时间：
2016-02-23
