Competition between Kirkendall shift and backstress in interdiffusion revisited – simple analytic model

Abstract

We present the first simple analytical description of the interdiffusion process where the competition between the Kirkendall shift and the backstress is considered. It is shown that two diffusion subzones are formed; these sections are linked to the fast and slow diffusing component. During the interdiffusion process, the stress effect does not vanish.

Keywords:

• Kirkendall shift
• backstress
• interdiffusion
• stress effect
• vacancy distribution

Acknowledgements

This work is supported by a National Science Center (Poland) decision no. DEC-2011/02/A/ST8/00280. One of the authors (AG) in grateful to AGH for hospitality and to the Ukrainian Ministry of Education and Science for support.