Abstract
The principal reason for interest in uranium is the nuclear behavior of the 235 isotope. However, there has also been interest in depletedt uranium because of its high density (p = 19.1 g/cm3) and in some cases its structural properties. Because depleted uranium is a by-product of enriched nuclear fuel, it is less expensive than any other high-density material. Tungsten, with a density of 19.3 g/cm3, not only has a higher raw material cost but also is more expensive to fabricate. Other elements with densities above 15 g/cm3. Re, Os, Ir, Pt, Au, and Pu are very expensive. Therefore, in addition to their nuclear applications, uranium and uranium alloys have been used for ballast and counterweights where space is limited such as in aircraft and missiles, for non-nuclear ordnance as an armor penetrator, and for radiation shielding. A uranium radiation shield not only occupies less volume than an equivalent lead shield but can weigh two-thirds as much. Because of their mechanical properties uranium alloys have a great deal of potential as shipping container-shielding for spent reactor fuels where safety requires the containers remain intact in an accident.
This work was supported by the U.S. Energy Research and Development Administration.
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Magnani, N.J. (1976). Hydrogen Embrittlement and Stress Corrosion Cracking of Uranium and Uranium Alloys. In: Fontana, M.G., Staehle, R.W. (eds) Advances in Corrosion Science and Technology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-8986-6_2
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