A luminescence modification of the 2-sample method was used to determine the diffusion coefficients. The results could be described by:

400-800C:     D(cm2/s) = 2.2 x 10-2 exp[-1.18(eV)/kT]

800-1100C:     D(cm2/s) = 2.3 x 10-2 exp[-1.80(eV)/kT]

400-800C:     D(cm2/s) = 1.0 x 10-4 exp[-0.66(eV)/kT]

for Ag, Al and Cu, respectively.

T.Lukaszewicz, J.Zmija: Physica Status Solidi A, 1980, 62[2], 695-9