It was noted that the concentration profiles on each side of the Matano plane in a solid-solid single-phase ternary diffusion couple could be characterized by average effective interdiffusion coefficients and characteristic depth parameters. The composition at the Matano plane was related to the latter factors. The present analysis permitted the generation of concentration profiles on the basis of error function solutions that exactly reproduced the experimental interdiffusion fluxes at the Matano plane. From a knowledge of the average effective interdiffusion coefficients, and of the parameters for one side of the couple, the concentration profiles on the other alloy side could be deduced.

M.A.Dayananda, Y.H.Sohn: Scripta Materialia, 1996, 35[6], 683-8