Ag–Sb/Cu interfacial reactions and Ag–Cu–Sb phase equilibria

Chen, Sinn-wen; Hsu, Ya-Hsiang; Shih, Han C.; Huang, Hsien-cheng

doi:10.1016/j.jallcom.2020.157239

Cited by 4 publications

(1 citation statement)

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“…Additionally, Ag-Cu-Sn-based brazing alloys have been used in industrial applications [5,6]. To reduce the costs of the solders and brazing alloys, some alloying elements such as In, Zn, Sb, Bi, Ni and rare earth metals are added to Sn-Ag-Cu alloys and Ag-Cu-Sn-based alloys [7][8][9][10][11][12][13][14][15][16]. The phase equilibria and thermodynamic information of Ag-Cu-Sn-based alloys are essential to understand the role of alloying elements and to design new Sn-Ag-Cu-based lead-free solders and Ag-Cu-Sn-based brazing alloys [17].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Modeling of the Ag-Cu-Sn Ternary System

Tong

Rong

et al. 2022

Metals

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In this work, combined with previous assessments of the Ag-Cu, Ag-Sn and Cu-Sn binary systems, thermodynamic modeling of the Ag-Cu-Sn ternary system was performed using the CALPHAD method using the reported phase diagram data and thermodynamic data. The solution phases including Liquid, fcc, bcc, hcp, bct(Sn) and diamond(Sn) were modeled as substitutional solutions and their excess Gibbs energies were expressed by the Redlich–Kister–Muggianu polynomial. The solubility of the third element in binary intermetallic compounds was not taken into account due to the fact that ternary solubilities for most of the binary compounds are not significant. Thermodynamic properties of liquid alloys, liquidus projection, several vertical sections and isothermal sections were calculated, which were in reasonable agreement with the reported experimental data. Finally, a set of self-consistent thermodynamic parameters formulating the Gibbs energies of various phases in the Ag-Cu-Sn ternary system was obtained.

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