It was recalled that H diffusion and accumulation in oxidized Zr/ZrO2 and oxide/metal interfaces led to H-induced cracking in Zr-based compounds. The interaction of H with irradiation damage in (001) single crystals of yttria-stabilized ZrO2 was investigated here as a function of damage accumulation and temperature. Samples were bombarded with 40keV H ions, to fluences of 5 x 1016 and 1 x 1017/cm2, at 120K. Isochronal experiments were performed at 300 to 770K. Damage accumulation and H-profile measurements revealed an unusual damage recovery behavior, the pinning of H by damage and surface deformation due to H blisters and bubbles.

Hydrogen-Damage Interactions in Yttria-Stabilized Zirconia. V.Shutthanandan, S.Thevuthasan, J.S.Young, T.M.Orlando, W.J.Weber: Journal of Nuclear Materials, 2001, 289[1-2], 128-35