Correlation between Electronic Structures and Formability of Icosahedrai Quasicrystals in Aluminium-transition metal Binary Alloys

摘要

The relation between electronic structures and formability of icosahedral quasicrystals in Al-transition metal binary alloys isinvestigated systematically.It is found that the number of (s+d) electrons in the transition metals and the parameter |Δ1| which isa measure of the relative bonding between Al and the transition metals are closely related to the formability of icosahedralquasicrystals.Two rules of thumb are derived from the experimental results for twelve Al-transition metal alloys.