Фазові рівноваги та кристалічні структури фаз у системі  Zr-Ru-Al за 900 °С

Editorial Board PCSS Journal; O. Shved; S. Mudry

doi:10.15330/pcss.27.2.341-345

Authors

O. Shved Ivan Franko National University of Lviv, Lviv, Ukraine
S. Mudry Ivan Franko National University of Lviv, Lviv, Ukraine

DOI:

https://doi.org/10.15330/pcss.27.2.341-345

Keywords:

phase equilibria, crystal structure, X-ray diffraction, Zirconium with transition metals alloys

Abstract

The Zr–Ru–Al system was studied at 900 °C by X-ray diffraction and scanning electron microscopy. Some phase equilibria were established for the system with an Al content ≤ 55 at. %. The existence of two ternary compounds was confirmed: ZrRu_xAl_2-xwith a hexagonal structure of the MgZn₂ type (space group P6_3/mmc): a = 5.2225(5), c = 8.1980(8) Å and cubic Zr₆Ru_7+xAl_16-x (x=0.58) with the Th₆Mn₂₃ type of structure: a = 12.27655(8) Å. A continuous solid solution based on binary compounds RuAl and ZrRu with a CsCl type of structure (PG Pm3^(-)m) was found along the isoconcentrate at 50 at. % Ru.

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