Cluster Self-Organization of Intermetallic Systems: Three-Layer Clusters K159A = 1@16@44@98 and K159B = 1@14@40@104 and Two-Layer Clusters K61 = 1@16@44 and K26 = 0@4@22 in the Crystalline Structure Ta156Al288-cF444.

Autor: Shevchenko, V. Ya., Blatov, V. A., Ilyushin, G. D.
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Zdroj: Glass Physics & Chemistry; Sep2021, Vol. 47 Issue 5, p408-416, 9p
Abstrakt: Using computer methods (ToposPro software package), the geometric and topological analysis is carried out of the crystal structure of the intermetallic compound Ta156Al288-cF444 (a = 19.153 Å, V = 7026.04 Å3, space group F-43m). A total of 324 variants of the cluster representation of the 3D atomic net with the number of structural units ranging from 2 to 6 are established. Three variants of the self-assembly of the crystal structure from three-layer clusters are considered. K159A = 1@16@44@98 and K159B = 1@14@40@104, and two-layer clusters K61 = 1@16@44 and K26 = 0@4@22. The symmetry and topological code of the processes of the self-assembly of 3D structures from clusters-precursors is reconstructed in the following form: primary chain → layer → framework. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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