Data (table 23) on H permeation through liquid Al were determined, by using a capillary technique, on the basis of the time-lag which was required in order to attain steady-state flow. These data obeyed the relationships:

permeation:     P (cm2/s atm½) = 3.86 exp[-23.9(kcal/mol)/RT]

diffusion:     D (cm2/s) = 2.34 exp[-15.0(kcal/mol)/RT]

solubility:     S (cm3/100g) = 1.65 exp[-8.9(kcal/mol)/RT]

K.I.Vashchenko, D.F.Chernega, G.A.Remizov, O.M.Byalik: Izvestiya Vysshikh Uchebnykh Zavedenii (Tsvet. Met.), 1972, 15[1], 50-6

Table 25

Diffusivity of 54Mn in Al at 925.2K

under Hydrostatic Pressure