The large concentration fluctuations in the liquid eutectic systems with deep eutectic points

Ikeda, Motoshige; Shibata, Takeru; Aoki, Hirokatsu; Itami, Toshio

doi:10.1016/s0022-3093(02)01664-2

Cited by 10 publications

(19 citation statements)

References 3 publications

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“…The deviation of specific electrical resistivity for liquid Au-Si alloys shows a maximum also at the eutectic composition. Similar maximum of deviation at the eutectic composition has been found also for liquid Ga-Sb [3,4], In-Sb [4], Ag-Ge [8] and Au-Ge [8] alloys, in which a minimum of the temperature coefficient of specific electrical resistivity also exists at the eutectic composition. Therefore, the homogeneous liquids at the eutectic composition for Ag-Si and Au-Si systems show an anomalous behavior derived from the concentration fluctuations.…”

Section: Discussionsupporting

confidence: 80%

“…The measurements of specific electrical rsistivity and its temperature coefficient were performed with an error within ± 0.5 % and 0.0005 μΩcmK ± -1 respectively judging from the reproducibility of measurements. These error bars are almost same as those in previous similar studies for liquid eutectic alloys [3,4,8].…”

supporting

confidence: 86%

“…In previous papers [3,4,8], we have revealed that with the approach to the eutectic temperature in the homogeneous liquid phase, the concentration fluctuations appear around the eutectic composition. This fact was found based on the change of the sign of the temperature coefficient of specific electrical resistivity [3].…”

Section: Discussionmentioning

confidence: 93%

“…On the analysis of anomaly in the present study, it was assumed that the semi-conductive domain (Si like), 1, and the metallic domain (Ag or Au like), 2, were immersed in the homogeneous liquid phase of metallic character, 3 [3,4,8]. This composite system was analyzed by the effective medium (EM) theory of three phases [3], which was derived by extending the EM theory of two phases [10] into the case of three phases.…”

Section: Discussionmentioning

confidence: 99%

“…In a previous study [8], the appearance tendency of concentration fluctuation was discussed for liquid Ga-Sb, In-Sb, Ag-Ge and Au-Ge systems based on the correlation between φ 1 +φ 2 at the liquidus for the eutectic composition and the parameter ΔT/Δx 2 ; Δx ("composition distance") and…”

Section: Discussionmentioning

confidence: 99%

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The estimation of concentration fluctuations in liquid Ag–Si and Au–Si alloys

Itami

Aoki

Shibata

et al. 2007

Journal of Non-Crystalline Solids

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Section: Discussionsupporting

confidence: 80%

supporting

confidence: 86%

Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

The estimation of concentration fluctuations in liquid Ag–Si and Au–Si alloys

Itami

Aoki

Shibata

et al. 2007

Journal of Non-Crystalline Solids

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Bergman-type medium-range order in rapidly quenched Ag0.74Ge0.26 eutectic alloy studied by ab initio molecular dynamics simulation

Ke¹,

Yue²,

Shen³

et al. 2014

Acta Materialia

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The structure of liquid and rapid quenched amorphous Ag 0.74 Ge 0.26 alloy at the eutectic composition was studied by ab initio molecular dynamics (MD) simulations. The local structural properties from the liquid at 1123 K to amorphous solid at 300 K were systematically investigated. The pair-correlation function at 1123 K from the MD simulations agrees well with the experimental data. The local structures were also analyzed using Honeycutt-Andersen (HA) indices, Voronoi tessellation, and atomic cluster alignment (ACA) method. The HA indices analysis reveals that pentagonal bipyramid structure has high population which become more predominant upon solidification. Voronoi tessellation analysis indicates strong icosahedral short-range orders (SRO) in the liquid and amorphous samples generated by the MD simulations. Using the ACA, the development of icosahedral SRO upon cooling is further confirmed and a Bergman medium-range order is also observed. The analysis of structural properties and chemical short-range order suggests that Ag atoms trend to have a Bergman-like packing, while the dispersed Ge atoms prevent the alloy from forming a long-range order upon cooling. The Bergman medium-range order is also confirmed by the constrained Reversed Monte Carlo results.

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Structural features of melts in the In–Bi system

Geng

Wang

et al. 2012

Physica B: Condensed Matter

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The large concentration fluctuations in the liquid eutectic systems with deep eutectic points

Cited by 10 publications

References 3 publications

The estimation of concentration fluctuations in liquid Ag–Si and Au–Si alloys

The estimation of concentration fluctuations in liquid Ag–Si and Au–Si alloys

Bergman-type medium-range order in rapidly quenched Ag0.74Ge0.26 eutectic alloy studied by ab initio molecular dynamics simulation

Structural features of melts in the In–Bi system

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