Bulk-to-surface Precipitation And Surface Diffusion Of Carbon On Polycrystalline Nickel
The time evolution of the KLL Auger spectrum of carbon as a function of temperature is used to derive the kinetics of the surface diffusion and bulk-to-surface precipitation of carbon on polycrystalline nickel. The results show that the activation energy for the surface diffusion of carbon atoms on polycrystalline nickel is 6.9 ± 0.6 kcal mole, and the activation energy for bulk-to-surface precipitation is 9.4 ± 0.6 kcal mole. The dependence on the surface diffusion coefficient Ds (cm2s-1), on the absolute temperature T can be represented, over the experimental temperature range, 350-425° C, by: ln Ds = 10.27 - 3568 T. © 1976.
J. F. Mojica and L. L. Levenson, "Bulk-to-surface Precipitation And Surface Diffusion Of Carbon On Polycrystalline Nickel," Surface Science, vol. 59, no. 2, pp. 447 - 460, Elsevier, Jan 1976.
The definitive version is available at https://doi.org/10.1016/0039-6028(76)90028-5
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01 Jan 1976