= Kirkendall effect
{wiki=Kirkendall_effect}
The Kirkendall effect is a phenomenon observed in materials science, particularly in the study of diffusion in solid-state systems. It describes the uneven movement of different species within a solid solution when they diffuse at different rates. This effect was first noted by the American physicist Ernest Kirkendall in the 1940s. In essence, the Kirkendall effect occurs when two different atoms (or species) are introduced into a solid matrix and they diffuse at different velocities.
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