The crystal-geometric factors in Laves phases

A.A. Klopotov, A.I. Potekaev, M.A. Perepelkin, N.O. Solonitsina, V.D. Klopotov, E.V. Kozlov show affiliations and emails
Received 30 June 2011; Accepted 15 July 2011;
This paper is written in Russian
Citation: A.A. Klopotov, A.I. Potekaev, M.A. Perepelkin, N.O. Solonitsina, V.D. Klopotov, E.V. Kozlov. The crystal-geometric factors in Laves phases. Lett. Mater., 2011, 1(2) 117-122


The crystal-geometric analysis of Laves phases of the A2B was carried out. The role of the ratio of atomic radii in the formation of stable superstructures was considered. It is established that the alloys with the Laves phases C14 have a high fill factor of space, which greatly exceeds the packing factor equal to 0.74 for pure metals with the hcp lattice. It is shown that the most numerous group includes alloys, which has a linear relation between the coefficients of space-filling and superstructure contraction.

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