Defect structures of U1 − yEryO2 ± x solid solutions

Aliovalent Cation Substitution in UO2: Electronic and Local Structures of U1–yLayO2±x Solid Solutions

“…Although no attempt to measure the O/M ratio has been made, Tsuji et al have assumed their materials were stoichiometric based on the employed sintering atmosphere. As the O/M ratios of U 1– y M y O 2± x solid solutions depends on the oxygen partial pressure during the sintering, ,,,− it cannot be properly determined without experimental measurements. One should mention that the lattice parameters obtained in the present work, are in very good agreement with the reported stoichiometric solid solutions of Hill, Hinatsu et al, Stadlbauer et al, Herrero et al, and Tsuji et al (in red on the Figure ).…”

Thermal conductivity of near-stoichiometric (U,Er)O2 solid solutions

“…Therefore, the addition of Er to the UO 2 matrix influences the lattice structure and thermodynamic properties due to the differences in the charge and the size of the cations [3].…”

Electrical conductivity and non-stoichiometry in the (U,Gd)O2±x system

“…Several researchers have measured the non-stoichiometry and electrical conductivity in the (U,Ln 3+ )O 2±x system at various oxygen partial pressures and temperatures, and they have suggested various defect models based on those measurements [29][30][31][32][33][34][35][36][37][38][39][40]. The suggested defect models cover wide ranges of the substituted species, substitution amounts, and measuring temperatures so much so the oxygen defect models in a Ln 3+ substituted UO 2 are difficult to integrate in a consistent manner.…”