Fabrication and Characterization of Surrogate TRISO Particles Using 800μm ZrO₂ Kernels

Technical Report · Fri Jul 01 00:00:00 EDT 2016

DOI:https://doi.org/10.2172/1325475· OSTI ID:1325475

Jolly, Brian C. ^[1]; Helmreich, Grant ^[1]; Cooley, Kevin M. ^[1]; Dyer, John ^[1]; Terrani, Kurt ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

In support of fully ceramic microencapsulated (FCM) fuel development, coating development work is ongoing at Oak Ridge National Laboratory (ORNL) to produce tri-structural isotropic (TRISO) coated fuel particles with both UN kernels and surrogate (uranium-free) kernels. The nitride kernels are used to increase fissile density in these SiC-matrix fuel pellets with details described elsewhere. The surrogate TRISO particles are necessary for separate effects testing and for utilization in the consolidation process development. This report focuses on the fabrication and characterization of surrogate TRISO particles which use 800μm in diameter ZrO₂ microspheres as the kernel.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5). Advanced Fuels Campaign
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1325475
• Report Number(s): ORNL/LTR--2016/315; AF5810000; NEAF278
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ACCIDENT-TOLERANT NUCLEAR FUELS
CERAMICS
COATED FUEL PARTICLES
FABRICATION
FUEL PELLETS
MATRIX MATERIALS
MICROSPHERES
SILICON CARBIDES
TESTING
URANIUM NITRIDES
ZIRCONIUM OXIDES