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Magnesium-Uranium System

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Abstract

A summary of analytical, X-ray, thermal, and metallographic data obtained in the study of the Mg-U system is presented. No intermetallic compounds are formed by these two elements, and their mutual solubility is limited at temperatures up to 1255°C. The compositions of the liquids which coexist at 1135°C under a pressure of 3 atm are 0.14±0.05 wt pet U in magnesium, and 0.004 wt pet Mg in uranium. The solubility of uranium in magnesium decreases to 0.05±0.03 wt pet at 675°C, and to about 0.0005 wt pet at 650°C. Due to the reactivity of both uranium and magnesium toward crucible materials, the choice of a suitable crucible presented a problem. Crucibles made from high purity magnesia to which 10 wt pet MgF2 was added to reduce porosity proved to be satisfactory. Some observations made with the use of other crucibles are given.

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Authors and Affiliations

  1. Institute for Atomic Research, Ames, Iowa., USA

    P. Chiotti & G. A. Tracy

  2. Dept. of Chemistry, Iowa State College, Ames, Iowa., USA

    H. A. Wilhelm

Authors
  1. P. Chiotti
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  2. G. A. Tracy
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  3. H. A. Wilhelm
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Additional information

TP4173E. Manuscript, May 10, 1955. New York Meeting, February 1956

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Chiotti, P., Tracy, G.A. & Wilhelm, H.A. Magnesium-Uranium System. JOM 8, 562–566 (1956). https://doi.org/10.1007/BF03377729

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  • DOI: https://doi.org/10.1007/BF03377729

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