AGR-2 TRISO fuel post-irradiation examination final report

JD Stempien, RN Morris, TJ Gerczak, PA Demkowicz - 2021 - osti.gov
An array of post-irradiation exams and experiments were employed to assess the irradiation
performance and high-temperature behavior of AGR-2 UCO TRISO fuel produced in an …

Production and characterization of TRISO fuel particles with multilayered SiC

RL Seibert, BC Jolly, M Balooch, DP Schappel… - Journal of Nuclear …, 2019 - Elsevier
Three distinct composite architectures of silicon carbide (SiC) and pyrocarbon (PyC) were
incorporated into the SiC coating layer of tristructural-isotropic (TRISO) nuclear fuel particles …

[HTML][HTML] Understanding Ag liquid migration in SiC through ex-situ and in-situ Ag-Pd/SiC interaction studies

K Wei, H Cao, H Liu, D Shepherd, Z Kho, Z Su… - Materials & Design, 2024 - Elsevier
The effective containment of fission products (FPs) within tri-structural isotropic (TRISO) fuel
particles is crucial for the safety and efficiency of High Temperature Gas-cooled Reactors …

Comparison of microstructural and micro-chemical evolutions in the irradiated fuel kernels of AGR-1 and AGR-2 TRISO fuel particles

Z Fu, L He, IJ van Rooyen, Y Yang - Progress in Nuclear Energy, 2024 - Elsevier
The US Advanced Gas Reactor (AGR) tristructural isotropic (TRISO) fuel represents the
culmination of significant development efforts aimed at overcoming limitations observed in …

Characterization of PyC/SiC interfaces with FIB-SEM tomography

JD Arregui-Mena, RL Seibert, TJ Gerczak - Journal of Nuclear Materials, 2021 - Elsevier
Tristructural-isotropic (TRISO) fuel is being considered for multiple reactor designs due to its
exceptional performance. This work studies pyrocarbon (PyC) and silicon carbide (SiC) …

Flow analysis through a randomly packed pebble-bed geometry using computational fluid dynamics

D Lanade, O Bovati Davalos, C Menezes, Y Hassan - Physics of Fluids, 2024 - pubs.aip.org
This study presents a comprehensive analysis of the flow behavior in packed pebble-bed
reactors using computational fluid dynamics (CFD) simulations. The pebble-bed geometry …

[HTML][HTML] Unravelling the impact of palladium on ruthenium-induced corrosion of SiC coatings in TRISO particles

K Wei, J Lao, H Liu, JP Martins, H Cao, CS Lin, Y Lei… - Corrosion …, 2024 - Elsevier
Ru and Pd are fission products released through SiC layer in TRISO fuel at high
temperature. This study investigates the corrosion behaviour of Ru-Pd on SiC layers of tri …

[HTML][HTML] Interactions between silver-palladium alloy and silicon carbide cladding layer in TRISO fuel: An in-depth analysis

K Wei, H Liu, H Cao, Z Kho, A Eggeman… - Journal of the European …, 2024 - Elsevier
High-temperature gas-cooled reactors (HTGRs) have garnered considerable interest due to
their superior efficiency and inherent safety. This study systematically investigates the …

Identifying chemically similar multiphase nanoprecipitates in compositionally complex non-equilibrium oxides via machine learning

KS Mao, TJ Gerczak, JM Harp, CS McKinney… - Communications …, 2022 - nature.com
Characterizing oxide nuclear fuels is difficult due to complex fission products, which result
from time-evolving system chemistry and extreme operating environments. Here, we report a …

Characterization of fluidized bed chemical vapor deposition ZrC coatings on PyC/YSZ kernels deposited under differing conditions

P Doyle, E Lopez-Honorato, G Vasudevamurthy… - Journal of Nuclear …, 2024 - Elsevier
Coated fuel particle architectures with ZrC coatings are candidate fuels for advanced power
reactors and space nuclear propulsion (SNP) concepts. Owing to its relevance to SNP, the …