Migración y retención de hidrógeno en la aleación de cobre “ITER-grade” Glidcop Al-25

GlidCop-Al25 is an oxide dispersion strengthened copper alloy that is considered for the construction of high heat flux components such as the divertor or the blanket first wall in ITER because of its adequate thermo-mechanical properties and ability to operate up to high temperatures under irradiation. In this work the hydrogen properties of permeability, diffusivity and Sieverts’ constant in the material have been experimentally evaluated by using the Permeation technique. These properties are of primary importance in a fusion reactor because they affect to the tritium cycle operation, the breeding blanket design, the radiological security of the installation and the plasma stability