Example: annealing of tungsten

The surface annealing is controlled by the trapping of diffusing adatoms by vacancies. The rate constant of this process for the tungsten surface was evaluated using the statistical model of surface diffusion-controlled reactions. The results are presented in the figure along with the available experimental data. It is seen from the figure that the theory provides a quantitative description of the surface diffusion-controlled reactions in a wide range of temperatures.


The rate constant of the surface annealing of tungsten. Results of calculations are shown by the red line; experimental data are shown by blue circles.

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