The time and temperature dependences of impurity diffusion were measured in detail for several bulk glasses over a wide temperature range. The Arrhenius diffusion relationships for various compositions in the low-temperature region could be described by:

Zr41Be22.5Ti14Cu12.5Ni10: D (m2/s) = 1.08 x 10-5exp[-1.91(eV)/kT]

Zr41Be27.8Ti8.7Cu12.5Ni10: D (m2/s) = 2.05 x 10-2exp[-2.27(eV)/kT]

Zr41Be20Ti16.5Cu12.5Ni10: D (m2/s) = 4.80 x 10-6exp[-1.85(eV)/kT]

and those in the high-temperature regime could be described by:

Zr41Be22.5Ti14Cu12.5Ni10: D (m2/s) = 2.26 x 108exp[-3.48(eV)/kT]

Zr41Be27.8Ti8.7Cu12.5Ni10: D (m2/s) = 7.24 x 105exp[-3.17(eV)/kT]

Zr41Be20Ti16.5Cu12.5Ni10: D (m2/s) = 4.58 x 107exp[-3.44(eV)/kT]

T.Zumkley, V.Naundorf, M.P.Macht, P.Fielitz, G.Frohberg: Materials Transactions, 2002, 43[8], 1921-30