Formation Criteria and Growth Morphology of Quasicrystals in Al–Pd–TM (TM=Transition Metal) Alloys

Rapidly solidified and annealed structures were examined in a series of Al 70 Pd 20 TM 10 (TM=transition metal) and Al 70 Pd 20 TM1 5 TM2 5 alloys, based on the fact that an Al 70 Pd 20 Mn 10 alloy consists of a stable icosahedral (I) phase