On new ternary hafnium aluminides containing palladium, platinum and gold

Chem. Met. Alloys 5 (2012) 8-15

https://doi.org/10.30970/cma5.0198

Yuriy VERBOVYTSKYY, Kazimierz ŁĄTKA

Six new ternary aluminides, HfAu_0.61Al_1.39, HfAu_0.84Al_1.16, HfAu_1.18Al_0.82, Hf_1.31Pt₄Al_10.13, Hf₆Pt_1.42Al_5.58, and Hf₆Pd_1.37Al_5.63, and a previously reported one, Hf₅Ni₄Al, were prepared by arc-melting. Their crystal structures were studied by X-ray powder diffraction. The above mentioned intermetallics crystallize in the MgNi₂, MgZn₂, Fe₂P, Sc_1.2FeSi_9.8, W₆Fe₇, and Zr₅Ni₄Al structure types, respectively. The coordination environment and interactions of the atoms in the investigated compounds are briefly discussed.

Unit cell and coordination polyhedra of the atoms in the structure of Hf₅Ni₄Al.

Keywords

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