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 …

Experimental work aimed at understanding the role of dislocation loops in limiting phonon
mediated thermal transport in ceramics is presented. Faulted dislocation loops, having …

Thermal transport is a key performance metric for thorium dioxide in many applications
where defect-generating radiation fields are present. An understanding of the effect of …

The early stage of microstructural evolution of ThO2, under krypton irradiation at 600, 800,
and 1000° C, was investigated using in situ transmission electron microscopy (TEM) …

Plasma facing components for future fusion applications will experience helium-and neutron-
induced structural damage. Direct observation of the in-situ dynamic response of such …

The early stages of nucleation and growth of dislocations by irradiation in urania is clarified
based on the combination of experiments and atomistic calculations. It is established that …

This work focuses on the full characterization of dislocation loops induced by proton
irradiation in single-crystal ThO 2. Irradiation was performed using 2 MeV H+ ions with …

The thermal conductivity of UO 2 fuel needs to be high enough to dissipate the heat
generated from the fission reaction. Since grain size affects thermal conductivity and grain …

In order to fully characterize the dislocation loops and lines features (Burgers vectors,
habit/slip planes, interstitial or vacancy type) induced by irradiation in UO 2, polycrystalline …

The microstructural changes and associated effects on thermal conductivity were examined
in UO 2 after irradiation using 3.9 MeV He 2+ ions. Lattice expansion of UO 2 was observed …