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Title: Application of Thermochemical Modeling to Assessment/Evaluation of Nuclear Fuel Behavior

The combination of new fuel compositions and higher burn-ups envisioned for the future means that representing fuel properties will be much more important, and yet more complex. Behavior within the oxide fuel rods will be difficult to model owing to the high temperatures, and the large number of elements generated and their significant concentrations that are a result of fuels taken to high burn-up. This unprecedented complexity offers an enormous challenge to the thermochemical understanding of these systems and opportunities to advance solid solution models to describe these materials. This paper attempts to model and simulate that behavior using an oxide fuels thermochemical description to compute the equilibrium phase state and oxygen potential of LWR fuel under irradiation.
 [1] ;  [2] ;  [2]
  1. University of South Carolina, Columbia
  2. ORNL
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Journal Volume: 55; Conference: TMS, Nashville, TN, USA, 20160214, 20160218
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Temperature Materials Laboratory (HTML)
Sponsoring Org:
NE USDOE - Office of Nuclear Energy
Country of Publication:
United States