A structural model of the icosahedral phase derived from its close relationship to the pentagonal Frank-Kasper phases
- 1 May 1986
- journal article
- Published by Taylor & Francis in Philosophical Magazine Part B
- Vol. 53 (5), L115-L121
- https://doi.org/10.1080/13642818608240649
Abstract
Structural models of the two- and three-dimensional icosahedral quasicrystals have been derived from the structure, especially the MgCu2 unit, of the pentagonal Frank-Kasper phases. In the two-dimensional case, icosahedra are somewhat distorted and placed in juxtaposition, as in the Frank-Kasper phases, on the lattice points of the Penrose lattice drawn by Mackay. In the three-dimensional case, additional atoms have been inserted in the two rhombohedral units of the triacontahedron with reference to the structure of MgCu2.Keywords
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