Spark plasma sintering of UO2 fuel composite with Gd2O3 integral fuel burnable absorber

In-Reactor Behaviour and Economic Assessment of Enriched Gadolinia Burnable Absorbers

“…With gadolinium's high thermal neutron capture cross-section, gadolinium oxide (Gd 2 O 3 ) is one of the most attractive and regularly used BAs. It is used as an integral burnable absorbers (IBA), typically within the limited number of fuel rods in the range of 0.1 wt% to 14 wt% (Papynov et al, 2020;Tran et al, 2017). Since the gadolinium (Gd) isotopes in the outer layers of the fuel pellet capture the neutrons that moderated by the cooling water, the BA isotopes in the inner layers are depleted later (Franceschini and Petrović, 2009).…”

Transition between two solid‐solutions: Effective and easy way for fine Ce1−xGdxO2−x/2 powders preparation

“…1,2 SOFCs consist of two porous electrodes (a cathode and an anode) and an electrolyte (an oxygen-ion conducting ceramic). Although oxygen-conducting solid electrolytes usually have fluorite structures (ZrO 2 , CeO 2 , ThO 2 , UO 2 , and cubic-Bi 2 O 3 ), [3][4][5][6][7] oxygen-ion conducting electrolytes with perovskite structures 8 and proton-conducting perovskite electrolytes, [9][10][11] namely BaCeO 3 and BaZrO 3 , have also been observed and developed, respectively. Overall, SOFCs primarily rely on oxygen-conducting solid electrolytes.…”