Electrochemical preparation of single crystals of235UO2

Thermal Energy Transport in Oxide Nuclear Fuel

“…Seeded growth can be performed easily in most of these techniques (provided a suitable seed can be procured), enabling orientation control and iteratively improving crystal quality. There are a few techniques that fall outside of the purview of both melt techniques and transport assisted growths, including sublimation in vacuum or from a plasma (ThO2 [269] and UO2 [217,269,270]), thermal decomposition (UO2 [271] and PuO2 [272]), electrodeposition (UO2 [273,274,275,276]), and high temperature sintering (UO2 [217]). Sublimation has thus far only yielded crystals (4 to 12 mm) of AO2 with purities that are often worse than the starting material.…”

“…There are a few techniques that fall outside of the purview of both melt techniques and transport-assisted growth methods, including sublimation in vacuum or from a plasma (ThO 2 and UO 2 ,, ), thermal decomposition (UO 2 and PuO 2 ), electrodeposition (UO 2 − ), and high-temperature sintering (UO 2 ). Sublimation has to date only yielded crystals (4 to 12 mm) of AO 2 with purities that are often worse than that of the starting material.…”