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Figure 3
Space imperfection in different decahedral MTPs. (a) A unit cell of Au single crystal with f.c.c. structure. A b.c.t. repeating unit can be extracted from the f.c.c. structure. (b) Structural projection with a blue triangle which corresponds with a segment of decahedral MTPs. (c) Diagram of Au decahedral MTP comprising a gap of 7.35°. The blue triangles with 70.53° angles of the top three images have a one to one correspondence. The main expansion direction [110] has been marked with red broken lines. (d) A unit cell of an AuCu single crystal with an f.c.t. structure. A b.c.t. repeating unit can be extracted from the f.c.t. structure. (e) Structural projection with a blue triangle that corresponds with a segment of intermetallic decahedral MTPs. (f) Diagram of AuCu decahedral MTP comprising an overlap of 13.35°. The blue triangles with 74.67° angles of the bottom three images have a one to one correspondence. The main expansion direction [001] has been marked with blue broken lines.

IUCrJ
Volume 6| Part 3| May 2019| Pages 447-453
ISSN: 2052-2525
https://doi.org/10.1107/S2052252519002562