Abstract
Epitaxial growth of a bcc hyperstoichiometric β-Zr(Pt) (Im3m) superstructure on an icosahedral phase has been studied in rapidly solidified Zr 80Pt 20 alloys. Icosahedral twofold axes coincide with 〈1 1 0〉 , 〈1 1 1〉 , 〈1 1 2〉 and 〈1 1 3〉 axes in β-Zr(Pt). The β-Zr(Pt) has a close crystallographic match and nearly identical stoichiometry to the i phase, but, it is not an approximant. Both the β-Zr(Pt) and the i phase are distorted.
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