Distribution of Pd, Ag & U in the SiC Layer of an Irradiated TRISO Fuel Particle

Conference · Fri Aug 01 00:00:00 EDT 2014

OSTI ID:1166028

Lillo, Thomas M.; van Rooyen, Isabella J.

The distribution of silver, uranium and palladium in the silicon carbide (SiC) layer of an irradiated TRISO fuel particle was studied using samples extracted from the SiC layer using focused ion beam (FIB) techniques. Transmission electron microscopy in conjunction with energy dispersive x-ray spectroscopy was used to identify the presence of the specific elements of interest at grain boundaries, triple junctions and precipitates in the interior of SiC grains. Details on sample fabrication, errors associated with measurements of elemental migration distances and the distances migrated by silver, palladium and uranium in the SiC layer of an irradiated TRISO particle from the AGR-1 program are reported.

• Research Organization: Idaho National Lab. (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: DOE - NE
• DOE Contract Number: DE-AC07-05ID14517
• OSTI ID: 1166028
• Report Number(s): INL/CON-14-31245
• Resource Relation: Conference: Microscopy & Microanalysis 2014,Hartford, CT, USA,08/03/2014,08/07/2014
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
fission product distribution
irradiated TRISO fuel
Silicon carbide
silver