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 …

The models used in Calphad to describe long and short range ordering in multicomponent
alloys have improved significantly over the last 20 years. For long range ordering the …

Phase diagrams are used in materials research and engineering to understand the
interrelationship between composition, microstructure and process conditions. In complex …

Materials in a nuclear environment are exposed to extreme conditions of radiation,
temperature and/or corrosion, and in many cases the combination of these makes the …

By 1911, the atomic weight of uranium had been refined to 238.5 (Gmelin, vol. A2, 1980a).
The natural isotope 235 U was discovered in 1935 by mass spectrometry. The artificial …

In the present work a thermodynamic model is derived for the (U, Pu) O2 oxide, the (U, Pu) C
carbide fuels using the Calphad method to describe consistently both phase diagrams and …

Abstract The Thermodynamics of Advanced Fuels–International Database (TAF-ID) was
developed using the Calphad method to provide a computational tool to perform …

The paper presents and discusses lattice parameter analyses of pure, stoichiometric UO 2.
Attention was paid to prepare stoichiometric samples and to maintain stoichiometry …

Based on density functional theory (DFT) and empirical potential calculations, the diffusivity
of fission gas atoms (Xe) in UO 2 nuclear fuel has been calculated for a range of non …

The solid–liquid transition in stoichiometric and hyperstoichiometric UO2 was investigated
by means of advanced techniques. Laser heating enabling fast melting and freezing …