Iron Self-Diffusion in Chemically Homogeneous Multilayers
Iron self-diffusion measurements in amorphous and nanocrystalline chemically homogenous multilayers (CHM) of FeZr/57FeZr, (with nm range periodicity) have been studied with neutron reflectivity technique. It has been found that both the activation energy for diffusion and the pre-factor were significantly smaller as compared with bulk alloys. Effect of compressive stress on self-diffusion reveals a significant dependence on the activation energy as a function of applied stress. On the basis of the obtained results the diffusion mechanism in amorphous and nanocrystalline CHM of FeZr/57FeZr is reviewed in this paper.
M. Danielewski, R. Filipek, R. Kozubski, W. Kucza, P. Zieba, Z. Zurek
M. Gupta et al., "Iron Self-Diffusion in Chemically Homogeneous Multilayers", Defect and Diffusion Forum, Vols. 237-240, pp. 548-553, 2005