In-pile intragranular densification of oxide fuels (AWBA Development Program)

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This report proposes a model to describe in-pile densification of oxide fuels, by both vacancy boil-off due to thermal excitation and vacancy knockout by the passage of fission fragments through the pores. The model includes the migration rates of both vacancies and interstitials to pores and the production of vacancy-rich damage cascades by fission fragments. It has been coupled with a previously reported swelling and gas release model so that it can predict the total dimensional changes of the fuel as well as predicting intragranular densification for both ThO/sub 2/ and UO/sub 2/ fuels for advanced water breeder reactor applications ... continued below

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Pages: 20

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Dollins, C.C. & Nichols, F.A. October 1, 1977.

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Description

This report proposes a model to describe in-pile densification of oxide fuels, by both vacancy boil-off due to thermal excitation and vacancy knockout by the passage of fission fragments through the pores. The model includes the migration rates of both vacancies and interstitials to pores and the production of vacancy-rich damage cascades by fission fragments. It has been coupled with a previously reported swelling and gas release model so that it can predict the total dimensional changes of the fuel as well as predicting intragranular densification for both ThO/sub 2/ and UO/sub 2/ fuels for advanced water breeder reactor applications development effort.

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Pages: 20

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Dep. NTIS, PC A02/MF A01.

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  • Report No.: WAPD-TM-1293
  • Grant Number: EY-76-C-11-0014
  • DOI: 10.2172/5289615 | External Link
  • Office of Scientific & Technical Information Report Number: 5289615
  • Archival Resource Key: ark:/67531/metadc1067795

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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.

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  • October 1, 1977

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  • Feb. 4, 2018, 10:51 a.m.

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  • March 29, 2018, 1:02 p.m.

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Dollins, C.C. & Nichols, F.A. In-pile intragranular densification of oxide fuels (AWBA Development Program), report, October 1, 1977; United States. (digital.library.unt.edu/ark:/67531/metadc1067795/: accessed January 19, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.