SYNROC C: preparation and radwaste distribution

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Results of the synthesis of SYNROC C from both high surface area (16m/sup 2//g) and low surface area (4m/sup 2//g) powders at low and high oxygen fugacities indicate variations in radionuclide distribution. These results are most striking for the partitioning of uranium between perovskite and zirconolite. In highly active powders, the formation of a pyrochlore precursor ensures that equilibrium partitioning is approached. In less active powders, no low temperature pyrochlore is formed. As a result, the uranium partitioning is a function of nucleation processes. At high oxygen fugacities, uranium is rejected from perovskite and an additional uranium rich phase is ... continued below

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Pages: 22

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Ryerson, F.J.; Hoenig, C.L. & Smith, G.S. October 16, 1981.

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Description

Results of the synthesis of SYNROC C from both high surface area (16m/sup 2//g) and low surface area (4m/sup 2//g) powders at low and high oxygen fugacities indicate variations in radionuclide distribution. These results are most striking for the partitioning of uranium between perovskite and zirconolite. In highly active powders, the formation of a pyrochlore precursor ensures that equilibrium partitioning is approached. In less active powders, no low temperature pyrochlore is formed. As a result, the uranium partitioning is a function of nucleation processes. At high oxygen fugacities, uranium is rejected from perovskite and an additional uranium rich phase is formed precluding the synthesis of SYNROC C in air.

Physical Description

Pages: 22

Notes

NTIS, PC A02/MF A01.

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  • Electrochemical Society conference, Denver, CO, USA, 11 Oct 1981

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  • Other: DE82003853
  • Report No.: UCRL-86880
  • Report No.: CONF-811013-10
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5986490
  • Archival Resource Key: ark:/67531/metadc1102168

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • October 16, 1981

Added to The UNT Digital Library

  • Feb. 18, 2018, 3:59 p.m.

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  • April 26, 2018, 8:09 p.m.

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Ryerson, F.J.; Hoenig, C.L. & Smith, G.S. SYNROC C: preparation and radwaste distribution, article, October 16, 1981; [Livermore,] California. (https://digital.library.unt.edu/ark:/67531/metadc1102168/: accessed March 26, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.