Deuterium/tritium behavior in Flibe and Flibe-facing materials

Interactions between molten Flibe and metallic Be

“…Then the crucible was installed in a stainless steel pot and heated to 798 K to melt the powders under He flow. To remove oxides in molten Flibe, HF gas was bubbled at 798 K [10,11]. Then the Flibe was filtered to remove precipitates with a 60-m sintered stainless steel filter.…”

“…The purity of Flibe finally obtained is shown Table 1. Details of the Flibe preparation have been described in previous work [10,11].…”

“…The interaction between molten Flibe and metallic Be, however, has been scarcely investigated. From these viewpoints, the interaction between Be and Flibe and tritium behavior in Flibe have been extensively studied under the framework of the second Japan-US Program on Irradiation Tests for Fusion Research (JUPITER-II) [7][8][9][10][11].…”

Reaction rate of beryllium with fluorine ion for Flibe redox control

“…However, quantitative evaluation has not been performed on the Be dissolution rate and the reduction reaction between Be and F À ions. In order to control the redox (reductionoxidation) condition of Flibe, dissolution of Be and transformation of TF (or HF) to T 2 (or H 2 ) is being investigated at INL as one of the most important tasks of a Japan-US joint study program called JUPITER-II [7][8][9][10][11][12]. Metallic Be was considered one of the most promising redox control agents through the reaction of Be + 2TF = BeF 2 + T 2 .…”

Study of tritium migration in liquid Li2BeF4 with ab initio molecular dynamics

“…Calculated diffusion coefficient of tritium in the TF form compared to experimental values from Refs [2,10]…”