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Fission induced swelling of U-Mo/Al dispersion fuel

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34 Scopus citations

Abstract

Fission-induced swelling of U-Mo/Al dispersion fuel meat was measured using microscopy images obtained from post-irradiation examination. The data of reduced-size plate-type test samples and rod-type test samples were employed for this work. A model to predict the meat swelling of U-Mo/Al dispersion fuel was developed. This model is composed of several submodels including a model for interaction layer (IL) growth between U-Mo and Al matrix, a model for IL thickness to IL volume conversion, a correlation for the fission-induced swelling of U-Mo alloy particles, a correlation for the fission-induced swelling of IL, and models of U-Mo and Al consumption by IL growth. The model was validated using full-size plate data that were not included in the model development.

Original languageEnglish
Pages (from-to)142-152
Number of pages11
JournalJournal of Nuclear Materials
Volume465
DOIs
StatePublished - Jun 18 2015

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