Application of a mechanistic model for radiation-induced amorphization and crystallization of uranium silicide to recrystallization of UO{sub 2}

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An alternative mechanism for the evolution of recrystallization nuclei is described for a model of irradiation-induced recrystallization of UO{sub 2} wherein the stored energy in the material is concentrated in a network of sinklike nuclei that diminish with dose due to interaction with radiation-produced defects. The sinklike nuclei are identified as cellular dislocation structures that evolve relatively early in the irradiation period. A generalized theory of radiation-induced amorphization and crystallization, developed for intermetallic nuclear materials, is applied to UO{sub 2}. The complicated kinetics involved in the formation of a cellular dislocation network are approximated by the formation and growth of ... continued below

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9 p.

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Rest, J. July 1, 1996.

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An alternative mechanism for the evolution of recrystallization nuclei is described for a model of irradiation-induced recrystallization of UO{sub 2} wherein the stored energy in the material is concentrated in a network of sinklike nuclei that diminish with dose due to interaction with radiation-produced defects. The sinklike nuclei are identified as cellular dislocation structures that evolve relatively early in the irradiation period. A generalized theory of radiation-induced amorphization and crystallization, developed for intermetallic nuclear materials, is applied to UO{sub 2}. The complicated kinetics involved in the formation of a cellular dislocation network are approximated by the formation and growth of subgrains due to the interaction of shock waves produced by fission- induced damage to the material.

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9 p.

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INIS; OSTI as DE96014872

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  • International workshop on interfacial effects in quantum engineering systems (IEQES), Mito (Japan), 21-23 Aug 1996

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  • Other: DE96014872
  • Report No.: ANL/ET/CP--90386
  • Report No.: CONF-9608157--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 393275
  • Archival Resource Key: ark:/67531/metadc676634

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  • July 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Dec. 14, 2015, 6:25 p.m.

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Rest, J. Application of a mechanistic model for radiation-induced amorphization and crystallization of uranium silicide to recrystallization of UO{sub 2}, article, July 1, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc676634/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.