A study was made of the permeation of H through Pd and Pd-Ag membranes at temperatures ranging from 250 to 700C and pressures of up to 3atm. Within this range, the data (table 133) were in agreement with Sievert's law.
A.L.Lvov, L.A.Malysheva, O.I.Petrovaskaya: Zhurnal Fizika Khimii, 1973, 47[7], 1698-701
Table 133
Permeation of H through Pd and Pd-25wt%Ag
Alloy | Temperature (C) | P (cm2/s atm½) |
Pd | 400 | 6.7 x 10-4 |
Pd | 500 | 9.2 x 10-4 |
Pd | 550 | 1.04 x 10-3 |
Pd | 700 | 1.42 x 10-3 |
Pd-25wt%Ag | 400 | 7.9 x 10-4 |
Pd-25wt%Ag | 500 | 1.08 x 10-3 |
Pd-25wt%Ag | 550 | 1.23 x 10-3 |
Pd-25wt%Ag | 600 | 1.38 x 10-3 |
Pd-25wt%Ag | 650 | 1.52 x 10-3 |
Pd-25wt%Ag | 700 | 1.67 x 10-3 |