Talk:Atomic diffusion

Interstitial atoms diffusivity

$D={\frac {\alpha a^{2}}{t}}$

a - lattice constant, alpha numerical coefficient depending on the position of the insterstitial atom, t average time in a interstitial position between 2 jumps. --188.27.144.144 (talk) 10:58, 10 September 2013 (UTC)