Zr₆Cu₄Al₃ – a new ternary disordered derivative with the rhombohedral W₆Fe₇ structure type

Chem. Met. Alloys 5 (2012) 142-147

https://doi.org/10.30970/cma5.0218

Yuriy VERBOVYTSKYY

The ternary aluminide Zr₆Cu₄Al₃ was prepared by arc melting. Its crystal structure was studied by X-ray powder diffraction for the first time. The above mentioned intermetallic compound crystallizes with the rhombohedral W₆Fe₇ structure type (space group R-3m, Pearson symbol hR39, Z = 3). Isostructural phases were observed in the systems Hf–Cu–Al, Nb–Cu–Al, Ta–Cu–Al, Zr–Ag–Al, and Hf–Ag–Al.

Unit cell and coordination polyhedra of the atoms in the structure of Zr₆Cu₄Al₃.

Keywords

Zirconium / Ternary aluminides / X-ray diffraction / Crystal structure