ON THE FORMATION OF TWINNED PRECIPITATES IN Al-Ge ALLOYS

Joël Douin , U. Dahmen , K. Westmacott

Atomic resolution microscopy has been used systematically to obtain a better understanding of Ge precipitation in Al. The formation of the observed twinned <100>Al and <110>Al needles can be related to the existence of a few special configurations. It is shown that twinning serves during nucleation to reduce the need of vacancies.

Domaines: Articles anciens

Joël Douin, U. Dahmen, K. Westmacott. ON THE FORMATION OF TWINNED PRECIPITATES IN Al-Ge ALLOYS. Journal de Physique Colloques, 1990, 51 (C1), pp.C1-809-C1-814. ⟨10.1051/jphyscol:19901126⟩. ⟨jpa-00230035⟩