The diffusion of deuterons was monitored using the absorbance of OD- bands at various stages of annealing in D2O gas. It was found that the results could be described by:

D (cm2/s) 1.50 x 102 exp[-1.9(eV)/kT]

The diffusivity at 1173K was 10-6cm2/s.

R.Gonzalez, Y.Chen: Physical Review B, 1987, 35[15], 8202-6