Structural morphologies of Cu–Sn–Bi immiscible alloys with varied compositions

Ma, Bin; Li, Jianqiang; Peng, Zhijian; Zhang, Guocai

doi:10.1016/j.jallcom.2012.04.032

Cited by 53 publications

(13 citation statements)

References 23 publications

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“…As the liquid-phase separation process determines the final solidification structure, many studies have been carried out on it [1][2][3][4][5][6][7][8][9]. It turned out that the minor volume phase will generate in the form of droplets, and the structure evolution mainly involves nucleation and coagulation of the minor droplets due to Marangoni and Stokes motions.…”

Section: Introductionmentioning

confidence: 99%

Macrosegregation driven by movement of minor phase in (Al0.345Bi0.655)90Sn10 immiscible alloy

Zhang

2014

Appl. Phys. A

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Formation of macrosegregation structure in (Al 0.345 Bi 0.655 ) 90 Sn 10 (mass percent, the same below) immiscible alloy was investigated by spraying its melt into silicone oil. Two kinds of typical macrosegregation structures were obtained in the dispersed alloy spheres: core/ shell structure and crescent structure. Based on the estimated temperature field inside the alloy spheres, the velocities of thermal Marangoni, solutal Marangoni, and Stokes motions of the Bi-rich minor droplets were calculated. Analysis shows that surface segregation, Soret effect, thermal Marangoni motion, solutal Marangoni motion, and Stokes motion play a key role in the formation of Al/Bi-Sn core/shell structure. If the liquid alloy spheres solidify on the condition that the radius of the Bi-rich minor droplets is smaller than a critical value, it will form Al/Bi-Sn core/ shell structure, while the crescent structure will be formed when the liquid alloy spheres frozen on the condition that the radius of the Bi-rich minor droplets exceeds the critical value.

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Section: Introductionmentioning

confidence: 99%

Macrosegregation driven by movement of minor phase in (Al0.345Bi0.655)90Sn10 immiscible alloy

Zhang

2014

Appl. Phys. A

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“…A core-shell structure would have formed in this case by other processing methods [8,12,19]. Instead, in the ADL processing, a two-concentric-layer structure formed in the kernel as shown in Fig.…”

Section: Resultsmentioning

confidence: 96%

Fe-shell/Cu-core encapsulated metallic phase change materials prepared by aerodynamic levitation method

et al. 2014

Applied Energy

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“…3 displays slightly negative deviation from Raoult's rule for lower tin contents, whereas for higher ones deviation is slightly posiive. Unusual activity plot for Xm : (XAg +X(.J = 3:2 composition path was most probably caused by miscibility detected in Bi-Cu-Sn ternary liquid alloys [22].…”

Section: Discussionmentioning

confidence: 99%

“…Systematic experimental and theoretical studies of thermodynamic properties [e.g., [6][7][8][9][10][11][12][13][14] , made by the various research centers partially coordinated by the European actions COST531 [15] and MP609 [16] led to the development of complete thermodynamics descriptions of the binary and ternary systems based on those elements [e.g., [17][18][19][20][21]. Phase boundaries and chemical composition of quaternary Ag-Bi-Cu-Sn system were investigated by Doi at all [22] using differential scanning calorimetry (DSC), optical microscope and a scanning electronic microscope (TEM) while the chemical compositions were determined by energy dispersive X-ray microanalyzer (EDX). The detailed knowledge of the phase equilibria in this quaternary system is essential for at least two reasons one to make an efficient alloy design easier and the second to understand and predict the interactions in different conditions between Ag-Bi-Sn solder and copper, which is frequently used as substrate in the electronics industry.…”

Section: Introductionmentioning

confidence: 99%