X-ray diffraction studies of the Ni–Si and Al–Ni–Si melts

Muratov, O.S.; Roik, O.S.; Kazimirov, V. P.; Golovataya, N.V.; Носенко, В. К.; Zelinskaya, G.M.; Mika, Taras; Sokol’skii, V. È.

doi:10.1016/j.molliq.2014.10.024

Cited by 13 publications

(5 citation statements)

References 27 publications

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“…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.…”

Section: Resultsmentioning

confidence: 99%

“…The existence of stable ternary compounds in the AlÀ SiÀ Ni system, [14] as well as negative values of enthalpies of mixing in the liquid state (extreme value is À 68 kJ/mol [5] ), indicates the intense ternary interactions. In the transition from binary AlÀ Si melts to ternary AlÀ NiÀ Si (when aluminum is replaced by silicon), there is no reduction in the nearest interatomic distance R 1 , [15] unlike in melts of AlÀ NiÀ Ge and AlÀ NiÀ Sn.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2023

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Short-range order (SRO) in the liquid AlÀ NiÀ Sn alloys has been investigated using the X-ray diffraction method and Reverse Monte Carlo simulations. Obtained results point out a microinhomogeneous structure of AlÀ SnÀ Ni melts with Sn content between 10 and 65 at.% due to the presence of atomic clusters with the structure of liquid Sn and atomic clusters with NiÀ Sn coordination. The influence of the atomic size ratio (size factor) and pair atomic interactions (energy factor) on the short-range order of the investigated ternary melts are discussed. There is a competition between Al and Sn atoms in the formation of the SRO around Ni atoms due to the difference in bond energy in NiÀ Al and NiÀ Sn pairs. This competition, as well as a bigger radius of Sn atoms, results in the formation of atomic clusters with liquid Sn-like local atomic structure.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2023

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“…If expressed from another angle, as the melt density becomes lower with rising temperature, the metal electron density becomes lower which means that when the radius of free electron ball becomes bigger, the Fermi energy becomes smaller, so do v F and k F in the equation. Besides, as the temperature increases, the intensity of main peak in structure factor decreases and the width widens [10,[18][19][20]. According to Eq.…”

Section: Resultsmentioning

confidence: 99%

Discontinuous structural phase transition of Sn–Bi melts

Geng

Long

et al. 2015

Journal of Molecular Liquids

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“…A primary role of the Ni-Al and Ni-Si interactions on the structure formation and properties of the liquid Al-Ni-Si alloys were indicated in Muratov et al (2014). Consequently, competition between aluminum and silicon atoms in their interaction with nickel can affect the process of structure formation in ternary melts.…”

Section: Introductionmentioning

confidence: 99%

Structure and phase transformations of amorphous-nanocrystalline Al-based alloy

et al. 2020

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Structure evolutions of rapidly quenched Al 65 Ni 10 Si 25 alloy were investigated using DTA, X-ray diffraction, SEM, and EDX methods. The processes of structural transformation from the as-quenched state into a nanocrystalline state were studied. The common and distinctive features of structural transformation processes induced by heating, isothermal annealing, and laser irradiation were observed. The formation of the nanoscale structure was observed in all ways of treatment. Two metastable phases that were formed at different temperatures were observed: hexagonal H-phase and Al 9 Ni 2 . The phase composition in the equilibrium state was observed as Al + Si + Al 3 Ni. A high-temperature phase of Al 6 Ni 3 Si was found in the alloy after laser heating that shows the possibility of "freezing" the high-temperature phases in the ribbon structure using laser treatment. The fractal structure was observed on the ribbon surface after irradiation.

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X-ray diffraction studies of the Ni–Si and Al–Ni–Si melts

Cited by 13 publications

References 27 publications

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

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

Discontinuous structural phase transition of Sn–Bi melts

Structure and phase transformations of amorphous-nanocrystalline Al-based alloy

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