This article is cited in 12 papers

Dielectrics

Effect of nonstoichiometry on the lattice constant of cubic vanadium carbide VC$_{y}$

A. S. Kurlov, A. I. Gusev

Institute of Solid State Chemistry, Urals Branch of the Russian Academy of Sciences, Ekaterinburg

Abstract: The effect of nonstoichiometry on the lattice constant of cubic vanadium carbide VC$_{y}$ (0.65 $<y<$ 0.875) is studied. It is found that the ordering of vanadium carbide VC$_y$ with the formation of superstructures V$_{6}$C$_{5}$ and V$_{8}$C$_{7}$ leads to an increase in the base lattice constant in comparison with disordered carbide. Taking into account the change in the lattice constant, the direction of the static displacements of atoms near the vacancy is discussed.

Received: 06.02.2017

DOI: 10.21883/FTT.2017.08.44748.30

 English version: Physics of the Solid State, 2017, 59:8, 1520–1525

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