Thermal energy transport in oxide nuclear fuel

DH Hurley, A El-Azab, MS Bryan, MWD Cooper… - Chemical …, 2021 - ACS Publications
To efficiently capture the energy of the nuclear bond, advanced nuclear reactor concepts
seek solid fuels that must withstand unprecedented temperature and radiation extremes. In …

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 …

Glide mobility of the 1/2 [1 1 0](0 0 1) edge dislocation in UO2 from molecular dynamics simulation

AV Lunev, AY Kuksin, SV Starikov - International Journal of Plasticity, 2017 - Elsevier
Both the mechanical properties of oxide nuclear fuel and the high burn-up grain
restructuring are known to be related to dislocation motion. Previous studies show that at …

The effect of ion irradiation on the dissolution of UO2 and UO2-based simulant fuel

AJ Popel, TW Wietsma, MH Engelhard, AS Lea… - Journal of Alloys and …, 2018 - Elsevier
The aim of this work was to study the separate effect of fission fragment damage on the
dissolution of simulant UK advanced gas-cooled reactor nuclear fuel in water. Plain UO 2 …

The Effects of Irradiation on Structure and Leaching of Pure and Doped Thin-Film Ceria SIMFUEL Models Prepared via Polymer-Templated Deposition

AF Holdsworth, Z Feng, R Edge, JP Waters… - Journal of Nuclear …, 2024 - mdpi.com
When studying hazardous materials such as spent nuclear fuel (SNF), the minimisation of
sample volumes is essential, together with the use of chemically-similar surrogates where …

[HTML][HTML] Structural effects in UO2 thin films irradiated with U ions

AJ Popel, AM Adamska, PG Martin, OD Payton… - Nuclear Instruments and …, 2016 - Elsevier
This work presents the results of a detailed structural characterisation of irradiated and
unirradiated single crystal thin films of UO 2. Thin films of UO 2 were produced by reactive …

The formation mechanisms of high burnup structure in UO2 fuel

H Xiao, C Long, H Chen - Journal of Nuclear Materials, 2021 - Elsevier
The formation process of high burnup structure (HBS) in UO 2 fuel is accompanied by the
subdivision of original grains and the formation of fission gas bubbles, which can accelerate …

Model for evolution of grain size in the rim region of high burnup UO2 fuel

H Xiao, C Long, H Chen - Journal of Nuclear Materials, 2016 - Elsevier
The restructuring process of the high burnup structure (HBS) formation in UO 2 fuel results in
sub-micron size grains that accelerate the fission gas swelling, which will raise some …

Evolution of the perovskite phase in UO2-based samples under conditions representative of a severe nuclear accident by XANES

C Le Gall, V Klosek, F Audubert, J Lechelle… - Journal of Solid State …, 2023 - Elsevier
To understand the fission products behaviour during a Nuclear Severe Accident (NSA),
simulated high burnup UO 2 fuels produced by sintering at high temperature (SIMFUEL) …

[HTML][HTML] The effect of fission-energy Xe ion irradiation on dissolution of UO2 thin films

AJ Popel, VG Petrov, VA Lebedev, J Day… - Journal of Alloys and …, 2017 - Elsevier
The aim of this work was to study the effect of fission fragment damage on the dissolution of
UO 2 thin films in water. For this purpose, thin films of UO 2 on LSAT (Al 10 La 3 O 51 Sr 14 …