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Preparation of urania and urania‐zirconia microspheres by a sol‐gel process

1966; Wiley; Volume: 44; Issue: 6 Linguagem: Inglês

10.1002/cjce.5450440610

1939-019X

P.A. Haas, S.D. Clinton, A. T. Kleinsteuber,

Nuclear materials and radiation effects

Abstract The sol‐gel process was originally developed and applied at the Oak Ridge National Laboratory for preparation of high‐density thoria‐urania fragments and microspheres for nuclear reactor fuels. The application of the process for preparation of microspheres to sols of urania, urania‐zirconia, and urania‐carbon is reported in this paper. Relatively high‐strength, spherical particles of UO 2 , UO 2 ‐ ZrO 2 , and UC 2 were prepared with diameters of 50‐500 microns and densities of 80‐100% of the theoretical densities.