Electrochemical methods were used to study the diffusion of F at 757 to 920C. The results could be described by:

D (cm2/s) = 9.32 x 10-2 exp[-98.91(kJ/mol)/RT]

S.N.S.Reddy, R.A.Rapp: Metallurgical Transactions B, 1978, 9[12], 559-65

 

Table 43

Diffusivity of Fe in Cu

 

Temperature (K)

D (m2/s)

651

1.96 x 10-21

663

3.35 x 10-21

680

4.59 x 10-21

691

1.98 x 10-20

704

2.34 x 10-20

719

5.93 x 10-20

741

1.15 x 10-19

756

2.80 x 10-19

787

9.53 x 10-19

801

1.40 x 10-18

830

4.14 x 10-18

843

7.38 x 10-18

850

8.81 x 10-18

870

1.55 x 10-17