The diffusion of hydrogen and deuterium through self-stressed Pd_(77)Ag_(23) membrane

摘要

Hydrogen was introduced into palladium-silver Pd_(77) Ag_(23) membrane from a gas phase and self-stresses were created. The diffusion coefficients of hydrogen were determined for Pd_(77) Ag_(23) membrane with different initial contents of hydrogen at T - 303.2 K. The non-local fluxes of interstitial component in the opposite direction than Fick's fluxes were observed at stress conditions. The diffusion of hydrogen through the Pd_(77) Ag_(23) membrane has been compared with deuterium diffusion. For Pd_(77) Ag_(23) membrane without initial content of hydrogen, the diffusion coefficients of hydrogen were determined at temperatures: 298.2, 303.2, 308.2, 318.2, 328.2 K.