Interfaces of bismuth with Al-Cu-Fe icosahedral quasicrystal

摘要

In a transmission electron microscopy study, it is shown that bismuth makes a better lattice match with an icosahedral quasilattice than with a crystalline lattice. A common orientation relationship is [0001]parallel to 2f (two-fold axis), {11 (2) over bar0}parallel to 5f (five-fold plane), in which a match of prominent planes and axes occurs. The match in the reciprocal-space and lattice images indicate epitaxy at the interfaces. In a variant of this orientation relationship, [0001]parallel to 2f, {01 (1) over bar2}parallel to 5f, where {0 (1) over bar 12} and five-fold are the closest-packed planes in bismuth and the icosahedral phase, respectively.