Structure of liquid Al-Ge-Ni melts in a wide composition range

Formation of the Short‐Range Order in Liquid Al−Ni−Sn Alloys

“…Figure 7 shows the experimental curves of SP and PDF of the liquid Al 25 Ge 75-x Ni x section. [13] The complex shape of the first maximum on the S(Q) and the decay of long-range oscillations on the PDF are observed at Ge content � 55 at.%. On the other hand, for a section with a similar aluminum content Al 25 Sn 75-x Ni (Figures 2c,d), similar changes occur for the ternary melts with Sn content � 43 at.%.…”

“…Figure 7 shows the experimental curves of SP and PDF of the liquid Al 25 Ge 75‐x Ni x section [13] . The complex shape of the first maximum on the S(Q) and the decay of long‐range oscillations on the PDF are observed at Ge content ≥55 at.%.…”

“…It was previously shown using X-ray diffraction data and modeling of the local atomic structure of AlÀ NiÀ X melts (X = Si, Ge) [13,15] competition between Al and X atoms in the formation of the local structure of Ni due to a significant difference in the energy of interactions in NiÀ Al and NiÀ X pairs. This energy inequivalence does not prevent the formation of a dense noncrystalline packing in the case of AlÀ Ni-Si melts since the sizes of Al and Si atoms are close to each other.…”

“…The extreme region of these enthalpies is located on the line from Al 30 Ge 21 Ni 49 (ΔH max =47 kJ/mole) to Al 50 Ni 50 (ΔH max =−52.7 kJ/mol). X‐ray diffraction study of Al−Ni‐Ge melts in a wide concentration range was carried out in [13] . A detailed analysis of the change in local ordering along several concentration beams (constant ratio between two components) and cross sections (constant content of one of the components) was performed.…”

“…X-ray diffraction study of AlÀ Ni-Ge melts in a wide concentration range was carried out in. [13] A detailed analysis of the change in local ordering along several concentration beams (constant ratio between two components) and cross sections (constant content of one of the components) was performed. It was found that germanium is involved in the formation of the local environment around nickel atoms and in the formation of atomic clusters with a structure similar to liquid germanium.…”