A study of diffusion of sodium and potassium in iron

Release of K from catcher foils

“…There are measurements in the literature [20] of 42 K diffusion in three of the materials measured here, Mo (E a ¼ 1:08 eV; D 0 ¼ 5:5 Â 10 À9 cm 2 =s) [21], Nb (0:95 eV; 2:38 Â 10 À7 cm 2 =s) [21], and aFe (1:83 eV; 0:036 cm 2 =s) [22], with no errors listed. If we use these parameters and Eq.…”