Abstract
Structure refinement of the basic Ni-rich Al-Ni-Co decagonal phase was performed in physical space. Statistical approach was used to derive the structure factor. Rhombic Penrose tiling with an edge length of 10.28 Å was chosen as a reference lattice. The best-fit structure model with 106 parameters and 2767 reflections gives R = 12.3% and wR = 6.2%. The observations-to-parameters ratio is high – 26.1 Density and chemical composition of the resulting structure are very close to experimental values.
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