DIFFUSION IN MULTICOMPONENT METALLIC SYSTEMS
J. S. Kirkaldy · Canadian Journal of Physics · 1957
Onsager's phenomenological scheme for diffusion in multicomponent liquid systems is examined for suitability as a description of metallic interdiffusion. Subject to certain restrictions and approximations a set of non-linear differential equations is obtained which can be simply applied to important boundary conditions. A solution of the set for the system iron, carbon, silicon is shown to provide a good fit to Darken's experimental results.