Phase equilibrium diagram of Y-Cu-Sb system at 870 K

L. Romaka; Yu. Stadnyk; V.V. Romaka; A. Zelinskiy; P. Klyzub; A. Horyn

doi:10.15330/pcss.24.4.610-615

Authors

L. Romaka Ivan Franko National University of Lviv, Lviv, Ukraine
Yu. Stadnyk Ivan Franko National University of Lviv, Lviv, Ukraine
V.V. Romaka Institute for Solid State Research, IFW-Dresden, Dresden, Germany
A. Zelinskiy Ivan Franko National University of Lviv, Lviv, Ukraine
P. Klyzub Ivan Franko National University of Lviv, Lviv, Ukraine
A. Horyn Ivan Franko National University of Lviv, Lviv, Ukraine

DOI:

https://doi.org/10.15330/pcss.24.4.610-615

Keywords:

intermetallics, ternary system, phase equilibria, crystal structure

Abstract

The interaction of the components in the Y-Cu-Sb ternary system was investigated using the methods of X-ray phase analysis, microstructure, and energy-dispersive X-ray spectroscopy in the whole concentration range at 870 K. At the temperature of investigation Y-Cu-Sb system is characterized by the formation of three ternary compounds: Y₃Cu₂₂Sb₉ (Dy₃Cu₂₀₊_xSb_11-_x structure type, space group F-43m, a=1.6614(3) nm), Y₃Cu₃Sb₄ (Y₃Au₃Sb₄ structure type, space group I-43d, а=0.95357(5) nm), YCuSb₂ (HfCuSi₂ structure type, space group P4/nmm, a=0.42580(1), c=0.98932(3) nm). The solubility of copper in the binary compound YSb (NaCl structure type) extends up to 8 at. %.

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