Transition-metal and rare-earth diffusion coefficients were determined, at 1323K, by means of the field emission energy dispersive spectroscopic compositional analysis of diffusion couples. Estimates of the mutual interdiffusion coefficients were deduced by preparing arc-melted and annealed polycrystalline specimens. It was assumed that the diffusion coefficients were independent of concentration. The results indicated that the diffusion coefficient of Fe was 3.28 x 10-10cm2/s.

B.A.Cook, J.L.Harringa, F.C.Laabs, K.W.Dennis, A.M.Russell, R.W.McCallum: Journal of Magnetism and Magnetic Materials, 2001, 233[3], 136-41