Calculated Liquidus Projection
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Status of the thermodynamic description:
S.W. Yoon and H.M. Lee, CALPHAD 22 (1998) 167-178
Description of HCP_A1 readjusted for different reference state, U.R. Kattner, NIST, 2000.
Sources of the binary descriptions:
Bi-Pb:
S.W. Yoon and H.M. Lee, CALPHAD 22 (1998) 167-178
Bi-Sn:
B.-J. Lee, C.-S. Oh and J.-H. Shim, J. Electron. Mater. 25 (1996) 983-991
Pb-Sn:
H.J. Fecht, M.-X. Zhang, Y.A. Chang and J.H. Perepezko, Metall. Trans. A, 20A (1989) 795-803
Calculated Invariant Equilibria
Reaction |
Phase |
Mass % Bi |
Mass % Pb |
Mass % Sn |
L + (Pb) -> (Sn) + (epsilon Pb)
135.7 oC |
Liquid |
30.54 |
47.56 |
21.90 |
(Pb) |
18.70 |
74.72 |
6.58 |
(Sn) |
4.46 |
1.65 |
93.89 |
(epsilon Pb) |
26.13 |
66.78 |
7.09 |
L -> (Sn) + (epsilon Pb) + (Bi)
98.0 oC |
Liquid |
51.59 |
32.59 |
15.82 |
(Sn) |
10.93 |
0.63 |
88.44 |
(epsilon Pb) |
41.24 |
50.29 |
8.47 |
(Bi) |
99.62 |
0.32 |
0.06 |
Phases, Crystal Structures and Model Descriptions
Phase |
Struktur- bericht Symbol |
Common Names |
Prototype |
Spacegroup |
Model* |
|
Liquid |
n/a |
L |
n/a |
n/a |
(Bi,Pb,Sn)1 |
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Fcc |
A1 |
(Pb) |
Cu |
Fm-3m |
(Bi,Pb,Sn)1(Va)1 |
Hcp |
A3 |
(epsilon Pb) |
Mg |
P63/mmc |
(Bi,Pb,Sn)1(Va)0.5 |
Rho |
A7 |
(Bi) |
alpha As |
R-3m |
(Bi,Pb,Sn)1 |
*Major species are printed bold face
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