The ternary system Hf–Re–Al at 1000 °C

Liana Zinko; Galyna Nychyporuk; Oksana Matselko; Roman Gladyshevskii

doi:10.15330/pcss.24.2.361-366

Authors

Liana Zinko Ivan Franko National University of Lviv, Lviv, Ukraine
Galyna Nychyporuk Ivan Franko National University of Lviv, Lviv, Ukraine
Oksana Matselko Ivan Franko National University of Lviv, Lviv, Ukraine
Roman Gladyshevskii Ivan Franko National University of Lviv, Lviv, Ukraine

DOI:

https://doi.org/10.15330/pcss.24.2.361-366

Keywords:

hafnium, rhenium, aluminum, X-ray powder diffraction, energy-dispersive X-ray spectroscopy, phase diagram, isothermal section, crystal structure

Abstract

The interaction of the components in the Hf–Re–Al system was investigated by X-ray powder diffraction and scanning electron microscopy with energy-dispersive X-ray spectroscopy. The isothermal section of the phase diagram at 1000 °C was constructed in the full concentration range. A new ternary compound ~Hf₅Re₂Al₂, isostructural with Ti₅Ga₄ (hP18, P6₃/mcm), and two extended solid solutions Hf(Re,Al)₂ were found.

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