Diffusion of fission products and radiation damage in SiC

JB Malherbe - Journal of Physics D: Applied Physics, 2013 - iopscience.iop.org
A major problem with most of the present nuclear reactors is their safety in terms of the
release of radioactivity into the environment during accidents. In some of the future nuclear …

Effect of H and Pd atoms on the migration of He atoms in 3C–SiC

S Zhao, C Chen, G Ran - Progress in Nuclear Energy, 2023 - Elsevier
Abstract 3C–SiC is an important structural material for tri-structural isotropic coated fuel
particles in high-temperature gas reactors. It serves as a vital pressure vessel for gas fission …

Multiscale, mechanistic modeling of irradiation-enhanced silver diffusion in TRISO particles

PCA Simon, JH Ke, C Jiang, LK Aagesen… - Journal of Nuclear …, 2025 - Elsevier
Tristructural isotropic (TRISO) particles are under consideration for use in several proposed
advanced nuclear reactor concepts. The silicon carbide (SiC) layer in TRISO acts as a …

Mechanistic calculation of the effective silver diffusion coefficient in polycrystalline silicon carbide: Application to silver release in AGR-1 TRISO particles

PCA Simon, LK Aagesen, C Jiang, W Jiang… - Journal of Nuclear …, 2022 - Elsevier
The silicon carbide (SiC) layer in tristructural isotropic (TRISO) fuel particles serves as a
barrier to prevent the escape of fission products produced and not retained in the fuel kernel …

[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 …

[HTML][HTML] A study of reaction between palladium, palladium silver alloy and silicon carbide ceramics at high temperature

H Liu, Y Chen, Z Gao, N Rohbeck, P Xiao - Journal of the European …, 2023 - Elsevier
The reactions between palladium (Pd), palladium-silver alloy (Pd-Ag) and silicon carbide
(SiC) from 1200° C to 1400° C have been studied to investigate the impact of liquid phases …

Associations of Pd, U and Ag in the SiC layer of neutron-irradiated TRISO fuel

TM Lillo, IJ Van Rooyen - Journal of Nuclear Materials, 2015 - Elsevier
Abstract Knowledge of the associations and composition of fission products in the neutron
irradiated SiC layer of high-temperature gas reactor TRISO fuel is important to the …

[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] Comparison of diffusion coefficients and activation energies for Ag diffusion in silicon carbide

BG Kim, S Yeo, YW Lee, MS Cho - Nuclear Engineering and Technology, 2015 - Elsevier
The migration of silver (Ag) in silicon carbide (SiC) and 110m Ag through SiC of irradiated tri-
structural isotropic (TRISO) fuel has been studied for the past three to four decades …

[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 …