An investigation of phase equilibria of the Bi-Sb-Sn system

G. Ghosh; M. Loomans; M. E. Fine

doi:10.1007/BF02653347

An investigation of phase equilibria of the Bi-Sb-Sn system

G. Ghosh^*, M. Loomans, M. E. Fine

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

The liquidus surface and invariant reactions involving the liquid phase are calculated to determine the solidification behavior of Bi-Sb-Sn alloys. Only two U-type invariant reactions Liq. + Sb₂Sn₃ = SbSn + (Sn) at 517.9Kand Liq. + SbSn = (Sn) + (Sb) at 411.8K are found. Thermodynamic calculation does not predict the presence of a ternary eutectic reaction in this system. The calculated solidification behavior of ternary alloys are found to be consistent with the experimental data as determined by differential scanning calorimetry. An isothermal section of the Bi-Sb-Sn system at 398K is also established. The equilibrium composition of the solid phases are determined by analytical electron microscopy. In contrast to an earlier report, the Bi-content in the SbSn phase is found to be about 5 wt.%.

Original language	English (US)
Pages (from-to)	619-623
Number of pages	5
Journal	Journal of Electronic Materials
Volume	23
Issue number	7
DOIs	https://doi.org/10.1007/BF02653347
State	Published - Jul 1 1994

Keywords

Bi-Sb-Sn isothermal section
Bi-Sb-Sn liquidus surface
solder alloys

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

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10.1007/BF02653347

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title = "An investigation of phase equilibria of the Bi-Sb-Sn system",

abstract = "The liquidus surface and invariant reactions involving the liquid phase are calculated to determine the solidification behavior of Bi-Sb-Sn alloys. Only two U-type invariant reactions Liq. + Sb2Sn3 = SbSn + (Sn) at 517.9Kand Liq. + SbSn = (Sn) + (Sb) at 411.8K are found. Thermodynamic calculation does not predict the presence of a ternary eutectic reaction in this system. The calculated solidification behavior of ternary alloys are found to be consistent with the experimental data as determined by differential scanning calorimetry. An isothermal section of the Bi-Sb-Sn system at 398K is also established. The equilibrium composition of the solid phases are determined by analytical electron microscopy. In contrast to an earlier report, the Bi-content in the SbSn phase is found to be about 5 wt.%.",

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T1 - An investigation of phase equilibria of the Bi-Sb-Sn system

AU - Ghosh, G.

AU - Loomans, M.

AU - Fine, M. E.

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Y1 - 1994/7/1

N2 - The liquidus surface and invariant reactions involving the liquid phase are calculated to determine the solidification behavior of Bi-Sb-Sn alloys. Only two U-type invariant reactions Liq. + Sb2Sn3 = SbSn + (Sn) at 517.9Kand Liq. + SbSn = (Sn) + (Sb) at 411.8K are found. Thermodynamic calculation does not predict the presence of a ternary eutectic reaction in this system. The calculated solidification behavior of ternary alloys are found to be consistent with the experimental data as determined by differential scanning calorimetry. An isothermal section of the Bi-Sb-Sn system at 398K is also established. The equilibrium composition of the solid phases are determined by analytical electron microscopy. In contrast to an earlier report, the Bi-content in the SbSn phase is found to be about 5 wt.%.

AB - The liquidus surface and invariant reactions involving the liquid phase are calculated to determine the solidification behavior of Bi-Sb-Sn alloys. Only two U-type invariant reactions Liq. + Sb2Sn3 = SbSn + (Sn) at 517.9Kand Liq. + SbSn = (Sn) + (Sb) at 411.8K are found. Thermodynamic calculation does not predict the presence of a ternary eutectic reaction in this system. The calculated solidification behavior of ternary alloys are found to be consistent with the experimental data as determined by differential scanning calorimetry. An isothermal section of the Bi-Sb-Sn system at 398K is also established. The equilibrium composition of the solid phases are determined by analytical electron microscopy. In contrast to an earlier report, the Bi-content in the SbSn phase is found to be about 5 wt.%.

KW - Bi-Sb-Sn isothermal section

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KW - solder alloys

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