2007 International RERTR Meeting

Abstracts and Available Papers Presented at the Meeting

Identification of Phases in the Interaction Layer between U-Mo-Zr/Al and U-Mo-Zr/Al-Si

C.L. Komar Varela^a, S.F. Aricóa, M. Mirandoua, S.N. Balarta and L.M. Gribaudo^a,b
aDepartamento Materiales, GIDAT, GAEN, CNEA
Avda. Gral Paz 1499, B1650KNA, San Martin. Argentina
 
^bCONICET
Avda. Rivadavia 1917, C1033AAJ, Buenos Aires, Argentina.

ABSTRACT

Out-of-pile diffusion experiments were performed between U-7wt.% Mo-1wt.% Zr and Al or Al A356 (7,1wt.% Si) at 550ºC. In this work morphological characterization and phase identification on both interaction layer are presented. They were carried out by the use of different techniques: optical and scanning electron microscopy, X-Ray diffraction and WDS microanalysis.
In the interaction layer U-7wt.% Mo-1wt.% Zr/Al, the phases UAl₃, UAl₄, Al₂₀Mo₂U and Al₄₃Mo₄U₆ were identified.
In the interaction layer U-7wt.% Mo-1wt.% Zr/Al A356, the phases U(Al, Si)₃ with 25at.% Si and Si₅U₃ were identified. This last phase, with a higher Si concentration, was identified with XRD Synchrotron radiation performed at the National Synchrotron Light Laboratory (LNLS), Campinas, Brasil.

 

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