Grain-boundary grooving methods were used to study the diffusion of Ag at 973 to 1073K. The results could be described by:

D (m2/s) = 2.49 x 10-1 exp[-166(kJ/mol)/RT]

at an O partial pressure of 10-11Pa, and by:

D (m2/s) = 1.71 x 10-3 exp[-106(kJ/mol)/RT]

at an O partial pressure of 105Pa.

K.Yoshihara, K.Nii: Transactions of the Japan Institute of Metals, 1979, 20[9], 533-42

 

Table 3

Volume Diffusivity of 110mAg in Ag Polycrystals

 

Temperature (K)

D (m2/s)

911

7.56 x 10-16

776

1.53 x 10-17

751

6.43 x 10-18

723

2.23 x 10-18

701

9.18 x 10-19

672

2.60 x 10-19

622

2.27 x 10-20

565

8.29 x 10-22

564

7.78 x 10-22

560

6.00 x 10-22

554

4.05 x 10-22

544

2.06 x 10-22

537

1.26 x 10-22

497

5.91 x 10-24

478

1.19 x 10-24

452

9.43 x 10-26

424

5.03 x 10-27

423

4.64 x 10-27

394

1.29 x 10-28