‘‘Superlattices’’ in quenched Al-Si-Mn quasicrystals

Abstract
Melt-quenched Al74 Si6 Mn20 and Al72 Si6 Mn22 alloys were found to exhibit icosahedral symmetry with a ‘‘superlattice-like’’ diffraction pattern which can be reproduced from the pattern observed in Al86 Mn14 quasicrystals with a scaling relationship defined by the golden mean.