Perspectives on multiscale modelling and experiments to accelerate materials development for fusion

MR Gilbert, K Arakawa, Z Bergstrom, MJ Caturla… - Journal of Nuclear …, 2021 - Elsevier
Prediction of material performance in fusion reactor environments relies on computational
modelling, and will continue to do so until the first generation of fusion power plants come on …

A review: applications of the phase field method in predicting microstructure and property evolution of irradiated nuclear materials

Y Li, S Hu, X Sun, M Stan - npj Computational Materials, 2017 - nature.com
Complex microstructure changes occur in nuclear fuel and structural materials due to the
extreme environments of intense irradiation and high temperature. This paper evaluates the …

Modeling mesoscale fission gas behavior in UO2 by directly coupling the phase field method to spatially resolved cluster dynamics

DU Kim, S Blondel, DE Bernholdt, P Roth, F Kong… - Materials Theory, 2022 - Springer
Fission gas release within uranium dioxide nuclear fuel occurs as gas atoms diffuse through
grains and arrive at grain boundary (GB) bubbles; these GB bubbles grow and interconnect …

Effect of second phase particles and stringers on microstructures after rolling and recrystallization

G Cheng, X Hu, WE Frazier, CA Lavender… - Materials Science and …, 2018 - Elsevier
Second phase particles and particle stringers have strong influences on recrystallized grain
structure and alloy performances. In this work, the effects of second phase particles on grain …

Molecular dynamics studies of grain boundary mobility and anisotropy in BCC γ-uranium

J French, XM Bai - Journal of Nuclear Materials, 2022 - Elsevier
Grain morphologies such as grain size and aspect ratio in uranium-based metallic fuels are
important microstructural features that can impact various fuel performance properties such …

Fission-induced recrystallization effect on intergranular bubble-driven swelling in U-Mo fuel

L Liang, ZG Mei, AM Yacout - Computational Materials Science, 2017 - Elsevier
We have developed a mesoscale phase-field model for studying the effect of
recrystallization on gas-bubble-driven swelling in irradiated U-Mo alloy fuel. The model can …

Annealing influence on the microstructure of irradiated U-Mo monolithic fuel foils

FG Di Lemma, JF Jue, TL Trowbridge, CA Smith… - Nuclear Materials and …, 2023 - Elsevier
In this study we compared the microstructure evolution of U-Mo fuel foils produced with and
without heat treatment at low burn-up via advanced post-irradiation examination. The aim of …

Radiation driven diffusion in γU-Mo

B Beeler, MWD Cooper, ZG Mei, D Schwen… - Journal of Nuclear …, 2021 - Elsevier
A monolithic fuel design based on a U-Mo alloy has been selected as the fuel type for
conversion of the US High-Performance Research Reactors. A critical phenomenon of …

The reconciliation and validation of a combined interatomic potential for the description of Xe in γU-Mo

B Beeler, Y Zhang - Frontiers in Nuclear Engineering, 2023 - frontiersin.org
A U-Mo alloy has been selected as the fuel design for the conversion of high-performance
research reactors in the United States. Efforts are ongoing to describe the fuel evolution as a …

The initial formation stages of a nanobubble lattice in neutron irradiated U (Mo)

D Salvato, A Leenaers, W Van Renterghem… - Journal of Nuclear …, 2020 - Elsevier
Low burnup samples of U7wt% Mo with 10%, 15%, 20% and 25% 235 U burnup were
analysed by transmission electron microscopy in order to study the formation mechanism of …