Measurements of the diffusion of 110mAg in alloys containing up to 4.5at%Sn were performed at 618 to 654K. Serial sectioning was carried out by means of ion-beam sputtering. It was found that a marked non-linear enhancement of the solvent diffusion occurred as a result of alloying (table 20).
D.Hentrich, F.Paupel, T.Hehenkamp: Philosophical Magazine A, 1992, 65[1], 207-14
Table 19
Diffusivities of Pb in Ag-Pb Alloys, Deduced
from Surface Segregation Measurements
Surface | Temperature (C) | Pb(at%) | D (cm2/s) |
111 | 260 | 0.50 | 2.0 x 10-16 |
111 | 291 | 0.50 | 1.6 x 10-15 |
111 | 302 | 0.50 | 2.3 x 10-15 |
111 | 292 | 0.22 | 1.2 x 10-15 |
111 | 314 | 0.50 | 6.5 x 10-15 |
¯135 | 314 | 0.25 | 5.1 x 10-15 |