Self-diffusion of 108Pd, 65Cu and 62Ni in molten Pd40Cu30Ni10P20, and of 108Pd and 62Ni in molten Pd40Ni40P20, was measured (tables 12 and 13) by using capillary techniques between 873 and 1073K; with and without the presence of gravitational acceleration. The diffusion coefficients were similar for all of the elements in the various alloys, and exhibited the temperature-dependence of diffusion of mode-coupling theory.

Self-Diffusion of Pd, Cu and Ni in Pd-Based Equilibrium Melts. A.Griesche, M.P.Macht, S.Suzuki, K.H.Kraatz, G.Frohberg: Scripta Materialia, 2007, 57[6], 477-80

 

Table 12

Diffusivity of Cu, Ni and Pd in Pd40Cu30Ni10P20 Melt

 

Temperature (K)

Diffusant

D (m2/s)

873

Ni

1.0 x 10-10

923

Cu

4.3 x 10-10

923

Ni

2.0 x 10-10

923

Pd

2.4 x 10-10

973

Cu

3.9 x 10-10

973

Ni

2.7 x 10-10

973

Pd

2.5 x 10-10

993

Ni

3.3 x 10-10

1043

Ni

4.7 x 10-10

1043

Pd

4.8 x 10-10