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2. New materials - mms2

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DIFFUSIONdiffusionlacunesnl=N exp (-Q l/kT)lCte BoltzmannEnergie d'activationNbe de noeuds du réseauNbe de lacunesinterstitiels• rôle mineur• n i• distorsions• sites O et T• atomes petits• = 7eV• rôle majeur dans les métaux• n l• = 1eVCOURS MATERIAUX FONCTIONNELSENSMP - MATERIAUX, mai 2005

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