Phase development in a U-7 wt.% Mo vs. Al-7 wt.% Ge diffusion couple

    Authors

    E. Perez; D. D. Keiser;Y. H. Sohn

    Comments

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    Abbreviated Journal Title

    J. Nucl. Mater.

    Keywords

    PERCENT MOLYBDENUM ALLOY; TRANSMISSION ELECTRON-MICROSCOPY; NUCLEAR-RESEARCH REACTORS; MO/AL DISPERSION FUEL; 550 DEGREES-C; U-MO; HIGH-DENSITY; IRRADIATION BEHAVIOR; URANIUM ALLOYS; THERMAL; COMPATIBILITY; Materials Science, Multidisciplinary; Nuclear Science & Technology; Mining & Mineral Processing

    Abstract

    Fuel development for the Reduced Enrichment for Research and Test Reactors (RERTR) program has demonstrated that U-Mo alloys in contact with Al develop interaction regions with phases that have poor irradiation behavior. The addition of Si to the Al has been considered with positive results. In this study, compositional modification is considered by replacing Si with Ge to determine the effect on the phase development in the system. The microstructural and phase development of a diffusion couple of U-7 wt.% Mo in contact with Al-7 wt.% Ge was examined by transmission electron microscopy, scanning electron microscopy and energy dispersive spectroscopy. The interdiffusion zone developed a microstructure that included the cubic-UGe3 phase and amorphous phases. The UGe3 phase was observed with and without Mo and Al solid solution developing a (U,Mo)(Al,Ge)(3) phase. (C) 2013 Elsevier B.V. All rights reserved.

    Journal Title

    Journal of Nuclear Materials

    Volume

    441

    Issue/Number

    1-3

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    159

    Last Page

    167

    WOS Identifier

    WOS:000325447600021

    ISSN

    0022-3115

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