Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Fuels for Advanced Nuclear Energy Systems

Journal Article · · Materials Research Society (MRS) Bulletin
DOI:https://doi.org/10.1557/mrs2009.11· OSTI ID:947627
Fuels for advanced nuclear reactors differ greatly from conventional light water reactor fuels and vary widely between the different concepts, due differences in reactor architecture and deployment. Functional requirements of all fuel designs include 1) retention of fission products and fuel nuclides, 2) dimensional stability, and 3) maintaining a coolable geometry. In all cases, the anticipated fuel performance under normal or off-normal conditions is the limiting factor in reactor system design, and cumulative effects of increased exposure to higher burnup degrades fuel performance. In high-temperature (thermal) gas reactor systems, fuel particles of uranium dioxide or uranium oxycarbide particles are coated with layers of carbon and SiC (or ZrC). Such fuels have been used successfully to very high burnup (10-20% of heavy-metal atoms) and can withstand transient temperatures up to 1600°C. Oxide (pellet-type) and metal (pin-type) fuels clad in stainless steel tubes have been successfully used in liquid metal cooled fast reactors, attaining burnup of 20% or more of heavy-metal atoms. Those fuel designs are being adapted for actinide management missions, requiring greater contents of minor actinides (e.g. Am, Np, Cm). The current status of each fuel system is reviewed and technical challenges confronting the implementation of each fuel in the context of the entire advanced reactor fuel cycle (fabrication, reactor performance, recycle) are discussed.
Research Organization:
Idaho National Laboratory (INL)
Sponsoring Organization:
DOE - NE
DOE Contract Number:
AC07-99ID13727
OSTI ID:
947627
Report Number(s):
INL/JOU-09-15424
Journal Information:
Materials Research Society (MRS) Bulletin, Journal Name: Materials Research Society (MRS) Bulletin Vol. 34
Country of Publication:
United States
Language:
English