Transformation de phase dans la section binaire du diagramme de phase UO2-FeO-Fe

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01/02/2007

Radiochemistry / Volume 49 N° 1 pages 20-24, 01/02/2007

Type de document > *Article de revue
Unité de recherche > IRSN/DPAM/SEMIC/LETR
Auteurs > BARRACHIN Marc , BESHTA S. V. , BOTTOMLEY D. B. , FISCHER M. , FROMENT K. , GUSAROV V. V. , HELLMANN S. , KHABENSKY V. B. , KRUSHINOV E. V. , LOMANOVA N. A. , LOPUKH D. B. , MEZENTSEVA L. P. , PETROV Y. B. , TROMM W. , VITOL S. A. , AL'MYASHEV V. I.

Phase transformations in the oxide binary section of the UO2-FeO-Fe ternary system were studied. The melting onset point of the UO2-FeO heterogeneous system (1335±5°C) was determined and the fusion curve of this system was constructed. The limiting solubility of FeO in the UO2 solid solution was measured. The changes in crystal parameters in formation of the solid solution were determined. Uranium dioxide was found to be insoluble in the wüstite phase (FeO).

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