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Density and viscosity of liquid Pu-U alloys

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Abstract

Density and viscosity determinations of liquid Pu-U alloys were made for five compositions, 5.5, 10.8, 16.6, 22.4, and 28.5 wt pct U, from near their liquidus temperatures to above 800°C. A vacuum pycnometric technique was used for the density determinations and an oscillating cup viscometer for the viscosity determinations. The partial molar volume of uranium was decreased approximately 15 pct in solutions containing up to 10.8 wt pct U and approached the normal molar volume at higher uranium concentration. The partial molar volume of plutonium changed by only 1 pct over the entire composition range. The viscosity of the alloys up to 10.8 pct U increased more rapidly than predicted from the pure components.

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Authors and Affiliations

  1. Mound Laboratory, Monsanto Research Corp., Miamisburg, Ohio

    Layton J. Wittenberg (Senior Research Specialist) & William G. Rohr (Research Physicist)

  2. U. S. Atomic Energy Commission, Albuquerque, N.M.

    Donald Ofte

  3. Pratt & Whitney Materials De-velopment Laboratory, East Hartford, Conn.

    David V. Rigney

Authors
  1. Layton J. Wittenberg
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  2. Donald Ofte
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  3. William G. Rohr
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  4. David V. Rigney
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Formerly with Monsanto Research Corp.

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Wittenberg, L.J., Ofte, D., Rohr, W.G. et al. Density and viscosity of liquid Pu-U alloys. Metall Trans 2, 287–290 (1971). https://doi.org/10.1007/BF02662672

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  • DOI: https://doi.org/10.1007/BF02662672

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