Fission gas release from UO2 nuclear fuel: A review

J Rest, MWD Cooper, J Spino, JA Turnbull… - Journal of Nuclear …, 2019 - Elsevier
Gaseous fission product generation, transport, and release can have a large impact on
nuclear fuel performance, degrading fuel and fuel–cladding gap properties. Over the past …

The joint automated repository for various integrated simulations (JARVIS) for data-driven materials design

K Choudhary, KF Garrity, ACE Reid, B DeCost… - npj computational …, 2020 - nature.com
Abstract The Joint Automated Repository for Various Integrated Simulations (JARVIS) is an
integrated infrastructure to accelerate materials discovery and design using density …

Fission gas diffusion and release for Cr2O3-doped UO2: From the atomic to the engineering scale

MWD Cooper, G Pastore, Y Che, C Matthews… - Journal of Nuclear …, 2021 - Elsevier
The anticipated benefits of large grains in Cr 2 O 3-doped UO 2 pellets include improved
mechanical and fission gas retention properties. To support the assessment of fission gas …

Thorium fuel revisited

A Chroneos, I Goulatis, A Daskalopulu… - Progress in Nuclear …, 2023 - Elsevier
The only present viable way to ensure a reliable, dispatchable and uninterrupted electricity
supply for base load that could conform with the requirement for the reduction of greenhouse …

The role of irradiation-enhanced interstitial diffusion in over-pressurizing fission gas bubbles in UO2

MWD Cooper, C Matthews, DA Andersson - Journal of Nuclear Materials, 2025 - Elsevier
Fission gas bubbles in UO 2 nuclear fuel have been observed to exhibit pressures in excess
of the equilibrium bubble pressure; however, the cause of bubble over-pressurization has …

Plutonium oxide melt structure and covalency

SK Wilke, CJ Benmore, OLG Alderman, G Sivaraman… - Nature Materials, 2024 - nature.com
Advances in nuclear power reactors include the use of mixed oxide fuel, containing uranium
and plutonium oxides. The high-temperature behaviour and structure of PuO2–x above …

Atomistic modeling of out-of-pile xenon diffusion by vacancy clusters in UO2

R Perriot, C Matthews, MWD Cooper… - Journal of Nuclear …, 2019 - Elsevier
Diffusion of Xe atoms in UO 2 fuel is important for nuclear fuel performance, and is enabled
by interaction with U and O vacancies. Previous work using atomistic calculations based on …

An improved xenon equation of state for nanobubbles in UO2

L Yang, BD Wirth - Journal of Nuclear Materials, 2022 - Elsevier
To understand the thermodynamic behavior of xenon (Xe) bubbles in uranium dioxide (UO
2), the pressure of Xe nanobubbles as a function of temperature was systematically …

Understanding xenon and vacancy behavior in UO 2, UN and U 3 Si 2: a comparative DFT+ U study

J Zhao, D Sun, L **, P Chen, J Zhao… - Physical Chemistry …, 2023 - pubs.rsc.org
Extensive attention has been paid to accident tolerant fuels (ATFs), such as uranium
mononitride (UN) and uranium sesquisilicide (U3Si2), which are regarded as potential …

[HTML][HTML] Atomistic model of xenon gas bubble re-solution rate due to thermal spike in uranium oxide

W Setyawan, MWD Cooper, KJ Roche… - Journal of Applied …, 2018 - pubs.aip.org
Atomistic simulations are performed to study the response of Xe gas bubbles in UO 2 to
ionizing fission products through the thermal spike approximation. A portion of the total …