The redistribution of Fe was studied using secondary ion mass spectrometry. It was found that the redistribution resulted from thermally stimulated Fe out-diffusion that could be described by:

D (cm2/s) = 2.5 x 10-4 exp[-1.7(eV)/kT]

at 700 to 900C.

A.Mazel, B.Legros-DeMaudit, F.Reynaud: Physica Status Solidi A, 1983, 75[2], K121-3