Deuterium Permeation through Flibe Facing Materials

摘要

Experiment of deuterium permeation through Ni facing with purified Flibe is being carried out under the Japan-US joint research project (JUPITER-II). The experiment has been proceeding in the following phases; (ⅰ) fabrication and assembly of a dual-probe permeation apparatus, (ⅱ) a single-probe Ni/D_2 permeation experiment without Flibe, (ⅲ) a dual-probe Ar/Ni/D_2 permeation experiment without Flibe, (ⅳ) Flibe chemica purification by HF/H_2 gas bubbling, (ⅴ) physical purification by Flibe transport through a porous Ni filter, (ⅵ) Ar/Ni/Flibe/Ni/D_2 permeation experiment using the dual Ni probe, and (ⅶ) Ar/Ni/FIibe/Ni/HT permeation experiment. The present paper describes results until the Ar/Ni/Flibe/Ni/D_2 permeation experiment in detail.