The diffusion of 54Mn was studied in icosahedral quasicrystals by using radiotracer and serial sectioning methods. It was found that the data could be described by:

D(cm2/s) = 8.91 x 100exp[-1.99(eV)/kT]

The quasicrystal data were not appreciably different to those for related crystalline materials, where a vacancy-mediated diffusion mechanism was generally thought to operate.

T.Zumkley, H.Mehrer, K.Freitag, M.Wollgarten, N.Tamura, K.Urban: Physical Review B, 1996, 54[10], R6815-8