Calculations of the hydrogen diffusion coefficient in palladium at 500 to 1000C were made. The diffusion activation energy, pre-exponential and elementary diffusion jump routes were determined, The correlation factor was calculated for hydrogen diffusion on octahedral interstices. This factor had turned out to be significantly greater than unity, indicating a correlation between the directions of the diffusion jumps of hydrogen atoms in palladium.

Hydrogen Diffusion in Palladium: Modelling by Molecular Dynamics Method. Vareksin, A.N., Kozyachev, V.S.: Fizika Metallov i Metallovedenie, 1991, 2, 45-51. See also: Physics of Metals and Metallography, 1991, 71[2], 42-8

Table 18

Diffusivity of H in Pd