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) = 1.73 x 10-5exp[-1.80(eV)/kT]

Zr41Be27.8Ti8.7Cu12.5Ni10: D (m2/s) = 3.14 x 10-2exp[-2.18(eV)/kT]

Zr41Be20Ti16.5Cu12.5Ni10: D (m2/s) = 1.19 x 10-4exp[-1.87(eV)/kT]

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

Zr41Be22.5Ti14Cu12.5Ni10: D (m2/s) = 1.22 x 105exp[-2.97(eV)/kT]

Zr41Be27.8Ti8.7Cu12.5Ni10: D (m2/s) = 1.24 x 101exp[-2.50(eV)/kT]

Zr41Be20Ti16.5Cu12.5Ni10: D (m2/s) = 2.11 x 103exp[-2.77(eV)/kT]

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