An interdiffusion study was carried out on the Co–W system by using a diffusion couple technique. The interdiffusion coefficient of the Co(W) solid solution and the Co7W6 μ-phase was determined. The activation energy was found to increase with the W content of the Co(W) solid solution.

Interdiffusion Study on Co(W) Solid Solution and Topological Close-Packed μ Phase in Co–W System. R.Ravi, A.Paul: Intermetallics, 2011, 19[3], 426-8