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 …

Diffusion of fission gas in UO 2 nuclear fuel impacts several important performance metrics,
such as fission gas release, swelling, and thermal conductivity. Current empirical models of …

This paper presents the state-of-the-art knowledge about the micro-mechanical modelling of
the fuel behavior under irradiation with normal and off normal operating conditions …

The development of embedded atom method (EAM) many-body potentials for actinide
oxides and associated mixed oxide (MOX) systems has motivated the development of a …

It is well known that Xe, being insoluble in UO 2, segregates to dislocations and grain
boundaries (GBs), where bubbles may form resulting in fuel swelling. Less well known is …

Extensive attention has been paid to accident tolerant fuels (ATFs), such as uranium
mononitride (UN) and uranium sesquisilicide (U3Si2), which are regarded as potential …

We review the state of first-principles density functional theory (DFT) modeling of nuclear
fuel materials. DFT-based first-principles modeling has emerged as a quantitatively rigorous …

Molecular dynamics (MD) simulations are used to study helium and xenon gas bubble
nucleation in UO 2. For helium bubbles, the pressure release mechanism is by creating …

Intra-and intergranular fission gas bubbles in nuclear fuels are known to have a deleterious
effect on fuel performance, particularly at high levels of burnup. The mechanisms by which …

The incorporation of volatile fission products (Kr, Xe, Br, I, Te, Rb and Cs) in a range of
interstitial and defect sites in UN and PuN is examined via predictions made using atomic …