TY - JOUR
T1 - Investigation of fission product interaction with the SiC containment layer of high burnup TRISO fuel particles
AU - Seibert, Rachel L.
AU - Parish, Chad M.
AU - Terrani, Kurt
AU - Terry, Jeff
N1 - Publisher Copyright:
© 2016 American Nuclear Society. All rights reserved.
PY - 2016
Y1 - 2016
N2 - This work aims to understand the interaction of fission products with the SiC containment layer in TRISO particles. We have systematically examined three SiC shells from irradiated TRISO particles using XAFS, TEM, and EDS. Results indicate the formation of palladium silicides, and uranium and plutonium carbides. Additionally, silver is seen to be metallic. Preliminary microscopy results indicate fission products throughout the SiC layer of the TRISO particles, and microstructural changes have been observed between the as-irradiated and safety tested particles. These results have provided key information on the fission product transport behavior through irradiated SiC at varying temperatures. Knowledge of these reaction pathways will allow for better simulation of the long-term behavior of TRISO fuels. They may also suggest ways to modify the SiC layer to improve fuel performance and mitigate fission product release, which is critical for safety strategies required to commercialize these nuclear fuel technologies.
AB - This work aims to understand the interaction of fission products with the SiC containment layer in TRISO particles. We have systematically examined three SiC shells from irradiated TRISO particles using XAFS, TEM, and EDS. Results indicate the formation of palladium silicides, and uranium and plutonium carbides. Additionally, silver is seen to be metallic. Preliminary microscopy results indicate fission products throughout the SiC layer of the TRISO particles, and microstructural changes have been observed between the as-irradiated and safety tested particles. These results have provided key information on the fission product transport behavior through irradiated SiC at varying temperatures. Knowledge of these reaction pathways will allow for better simulation of the long-term behavior of TRISO fuels. They may also suggest ways to modify the SiC layer to improve fuel performance and mitigate fission product release, which is critical for safety strategies required to commercialize these nuclear fuel technologies.
UR - http://www.scopus.com/inward/record.url?scp=85117957675&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85117957675
SN - 0003-018X
VL - 114
SP - 1260
EP - 1261
JO - Transactions of the American Nuclear Society
JF - Transactions of the American Nuclear Society
IS - 1
T2 - 2016 Transactions of the American Nuclear Society Annual Meeting, ANS 2016
Y2 - 12 June 2016 through 16 June 2016
ER -