Grube’s method was used to study the diffusion of Ti at 1051 to 1220K. The results could be described by:

D (m2/s) = 1.33 x 10-4 exp[-198(kJ/mol)/RT]

F.Makuta, Y.Iijima, K.Hirano: Transactions of the Japan Institute of Metals, 1979, 20[10], 551-9

 

Table 14

Grain Boundary Diffusivity of 123Te in Ag

 

Temperature (K)

D (m2/s)

538

1.22 x 10-13

504

9.30 x 10-14

473

3.28 x 10-14