It was noted that Gorsky-effect involvement in the diffusion of H in metallic solids implied that, in addition to concentration gradients, the expansion effects of interstitials themselves could introduce a reversed-direction diffusional flux component. In cases where concentrations of H interstitials were already present in diffusion membranes, such strain gradients could produce an experimentally observable overall long-range up-hill effect. Quantitative evidence for this behaviour had been found in the case of H diffusion in Pd, Pd/Pt and Pd/Ag, and had been shown to affect the calculation of H diffusion coefficients. It was concluded that there was a high probability that such strain gradient production could have marked effects upon phase transitions and other solid-state processes.

Important Gorsky Effect Influences on Diffusion Coefficients in Metal-Hydrogen Systems. K.Kandasamy, F.A.Lewis: International Journal of Hydrogen Energy, 24[8], 763-9