The diffusivity of D in Nb-1wt%Zr was determined at 923 to 1148K. It was found that a hollow-cylinder model adequately described the transport of D through the alloy. The results could be described by:

D (m2/s) = 8.5 x 10-8 exp[-48200/RT]

Transport of Deuterium in Nb-1wt%Zr. R.M.Alire: Nuclear Technology, 1977, 35[3], 651-5