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CERMET HIGH LEVEL WASTE FORMS

United States Patent Application

20120213658
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A system and method for stabilizing fission products in a cermet for long term storage. The method includes forming a metal oxide precipitate, combining the metal oxide precipitate with an undissolved solid, and densifying the combined metal oxide precipitate and the undissolved solid to provide a cermet having a ceramic dispersed phase and a metallic matrix phase, wherein the metallic matrix phase includes metallic content from the undissolved solid. The undissolved solid can include fission product metals from the reprocessing of irradiated nuclear fuel. The cermet waste loading can be greater than approximately 30 percent, reducing waste volume by 50 percent or more when compared to baseline glassified articles.
Aaron, W. Scott (Clinton, TN), Collins, Emory D. (Knoxville, TN), DelCul, Guillermo D. (Powell, TN), Jubin, Robert T. (Powell, TN), Vedder, Raymond J. (Knoxville, TN)
UT-BATTELLE, LLC (Oak Ridge TN)
13/ 031,982
February 22, 2011
[0001] This invention was made with government support under Contract No. DE-ACO5-000R22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.