Characterisation of ceramic breeder materials for the helium cooled pebble bed blanket

R&D status of key technologies for the development of KO TBM

“…[6,7]. The most common shape of the tritium breeders was usually adopted either as a pebble or pellet.…”

Fabrication of Li4SiO4 pebbles by a sol–gel technique

“…Moreover, Li 4 SiO 4 does not produce long-lived activation products during the irradiation process [1]. Therefore, Li 4 SiO 4 is chosen as a possible breeder material for the European Helium Cooled Pebble Bed (HCPB) blanket [3]. The shape the breeder materials adopted was determined by many factors, such as the tritium breeding ratio, the ease of removal of tritium from the blanket material, the release of thermal stress, irradiation cracking, etc.…”

Research on the preparation of ceramic tritium breeders in SICCAS

“…Among them, Li 2 TiO 3 and Li 4 SiO 4 were considered as the most promising candidates for online tritium breeding materials due to their reasonable lithium atom density, low activation, good compatibility with structural materials and excellent tritium release characteristics at low temperatures [1,2]. LiAlO 2 seems to fulfill the required thermophysical, chemical and mechanical stability as well as the favorable irradiation behavior and thus was regarded as the important offline tritium breeding materials.…”