Chemical diffusion in this L12 ordered compound was measured by means of single-phase interdiffusion experiments at 1750 to 1950C. The diffusivity could be described by a pre-exponential factor of 10−5.3m2/s and an activation energy of 4.83eV.

M.Uchida, H.Numakura, Y.Yamabe-Mitarai, E.Bannai: Scripta Materialia, 2005, 52[1], 11-5