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Phase Diagrams & Computational Thermodynamics

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Bi-Sn System

Calculated Phase Diagram

Calculated Bi-Sn Phase Diagram (percent of mass fraction) (78 KB)

Status of the thermodynamic description:

B.-J. Lee, C.-S. Oh and J.-H. Shim, J. Electron. Mater. 25 (1996) 983-991:
Full thermodynamic assessment.

Additional Assessments:

A.D. Pelton, C.W. Bale and M. Rigaud, Z. Metallkde. 68 (1977) 135-140
G. Ghosh, M. Loomans and M.E. Fine, J. Electron Mater. 23 (1994) 619-623
H. Ohtani and K. Ishida, J. Electron. Mater., 23 (1994) 747-755

Calculated Invariant Equilibria

Reaction Phase Mass % Bi Mass % Sn
L   ->   (Bi)   +   (Sn)

138.8 oC

Liquid 56.97 43.03
(Bi) 99.89 0.11
(Sn) 21.01 78.99

Phases, Crystal Structures and Model Descriptions

Phase Struktur-
Common Names Prototype Spacegroup Model*
Liquid n/a L n/a n/a (Bi,Sn)1
Bct A5 (Sn), (beta Sn) beta Sn I41/amd (Bi,Sn)1
Rho A7 (Bi) alpha As R-3m (Bi,Sn)1

*Major species are printed bold face

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