Experimental determination and thermodynamic calculation of the phase equilibria in the Cu-In-Sn system

X. J. Liu, H. S. Liu, I. Ohnuma, R. Kainuma, K. Ishida, S. Itabashi, K. Kameda, K. Yamaguchi

研究成果: Article査読

77 被引用数 (Scopus)

抄録

The phase equilibria of the Cu-In-Sn system were investigated by means of the diffusion couple method, differential scanning calorimetry (DSC) and metallography. The isothermal sections at 110-900°C, as well as vertical sections at 10wt.%Cu-70wt.%Cu were determined. It was found that there are large solubilities of In in the ε(Cu3Sn), δ(Cu41Sn11), and η phases in the Cu-Sn system, and large solubilities of Sn in the γ, η, and δ(Cu7In3) phases in the Cu-In system. The η phase was found to continuously form from the Cu-In side to the Cu-Sn side, and a ternary compound (Cu2In3Sn) was found to exist at 110°C. Thermodynamic assessment of the Cu-In-Sn system was also carried out based on experimental data of activity and phase equilibria using the CALPHAD method, in which the Gibbs energies of the liquid, fcc and bcc phases are described by the subregular solution model and that of compounds, including two ternary compounds, are represented by the sublattice model. The thermodynamic parameters for describing the phase equilibria were optimized, and agreement between the calculated and experimental results was obtained.

本文言語English
論文番号135
ページ(範囲)1093-1103
ページ数11
ジャーナルJournal of Electronic Materials
30
9
DOI
出版ステータスPublished - 2001
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学
  • 材料化学

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