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Densified waste form and method for forming

United States Patent

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May 17, 2016
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Densified Form for Nuclear Waste Storage
Materials and methods of making densified waste forms for temperature sensitive waste material, such as nuclear waste, formed with low temperature processing using metallic powder that forms the matrix that encapsulates the temperature sensitive waste material. The densified waste form includes a temperature sensitive waste material in a physically densified matrix, the matrix is a compacted metallic powder. The method for forming the densified waste form includes mixing a metallic powder and a temperature sensitive waste material to form a waste form precursor. The waste form precursor is compacted with sufficient pressure to densify the waste precursor and encapsulate the temperature sensitive waste material in a physically densified matrix.
14/ 805,220
July 21, 2015
G21F 9/16 (20060101)G21F 9/12 (20060101)G21F 9/36 (20060101)G21F 9/04 (20060101)G21F 9/30 (20060101)G21F 9/34 (20060101)G21F 9/02 (20060101)
STATEMENT CONCERNING FEDERALLY SPONSORED RESEARCH This invention was developed under Contract DE-AC04-94AL85000 between Sandia Corporation and the United States Department of Energy. The U.S. Government has certain rights in this invention.