Fabrication of a non-fertile fuel for the disposition of weapons plutonium in water reactors

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The feasibility of fabricating a non-fertile fuel containing weapons plutonium was evaluated. A surrogate fuel, specifically a CeO{sub 2}-ZrO{sub 2}-CaO fuel pellet, was fabricated using the solid-state reaction method to determine the effect of powder comminution, pellet formation, and sintering conditions on the microstructural development of the fuel. Dry ball milling of the precursor powders (CeO{sub 2}, ZrO{sub 2}, and CaO) proved to be an ineffective method for producing reactive powders for pellet pressing and sintering. However, results indicate that formation of the calcia-stabilized diluent and solid solution between the diluent and the actinide surrogate (CeO{sub 2}) occurred as a ... continued below

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15 p.

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Ramsey, K.B. & Blair, H.T. March 1, 1996.

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Description

The feasibility of fabricating a non-fertile fuel containing weapons plutonium was evaluated. A surrogate fuel, specifically a CeO{sub 2}-ZrO{sub 2}-CaO fuel pellet, was fabricated using the solid-state reaction method to determine the effect of powder comminution, pellet formation, and sintering conditions on the microstructural development of the fuel. Dry ball milling of the precursor powders (CeO{sub 2}, ZrO{sub 2}, and CaO) proved to be an ineffective method for producing reactive powders for pellet pressing and sintering. However, results indicate that formation of the calcia-stabilized diluent and solid solution between the diluent and the actinide surrogate (CeO{sub 2}) occurred as a result of sintering the fuel pellet at a temperature of 1200{degrees}C to 1700{degrees}C.

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15 p.

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OSTI as DE96007184

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  • ICONE 4: ASME/JSME international conference on nuclear engineering, New Orleans, LA (United States), 10-13 Mar 1996

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  • Other: DE96007184
  • Report No.: LA-UR--96-6
  • Report No.: CONF-960306--7
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 204244
  • Archival Resource Key: ark:/67531/metadc667320

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Office of Scientific & Technical Information Technical Reports

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  • March 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Feb. 29, 2016, 3:06 p.m.

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Ramsey, K.B. & Blair, H.T. Fabrication of a non-fertile fuel for the disposition of weapons plutonium in water reactors, article, March 1, 1996; New Mexico. (digital.library.unt.edu/ark:/67531/metadc667320/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.