An investigation of the high-Al part of the Al-Pd-Ru phase diagram at 1000 and 1100ºC

Chem. Met. Alloys 1 (2008) 84-87

https://doi.org/10.30970/cma1.0017

D. PAVLYUCHKOV, B. GRUSHKO, T.Ya. VELIKANOVA, K. URBAN

Partial isothermal sections of the Al-Pd-Ru phase diagram at 1000 and 1100°C are presented. The Al-Pd orthorhombic e-phases dissolve up to ~15.5 at.% Ru, Al₁₃Ru₄ <2.5 at.% Pd and Al₂Ru up to 1 at.% Pd. Between 65 and 80 at.% of Al ternary quasiperiodic icosahedral phase and four cubic phases were revealed. An additional complex cubic structure with a ≈ 3.96 nm was found to be formed at compositions close to those of the icosahedral phase.

Electron diffraction patterns of the: a) F-phase along the [110] zone axis and b) I-phase along the 5-fold direction.

Keywords

Intermetallics / X-ray diffraction / Phase diagram