Diffusion in Co-Ni System Studied by Multifoil Technique
Diffusion couple experiments were performed in the Co-Ni binary system for determining inter-, impurity- and intrinsic-diffusion coefficients in the temperature range of 1050 - 1250°C. The activation energy and pre-exponential factor estimated for interdiffusion do not vary significantly with composition. The activation energy calculated for impurity diffusion experiments shows is higher than . Intrinsic diffusion coefficients estimated from the multifoil experiment show that Ni is the fastest diffusing species in this system.
Andreas Öchsner, Graeme E. Murch and João M.P.Q. Delgado
V.D. Divya et al., "Diffusion in Co-Ni System Studied by Multifoil Technique", Defect and Diffusion Forum, Vols. 312-315, pp. 466-471, 2011