Calculated Liquidus Projection
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Status of the thermodynamic description:
Extrapolated from binary thermodynamic descriptions
Sources of the binary descriptions:
Bi-Cu:
O. Teppo, J. Niemelä and P. Taskinen, Thermochim. Acta 173 (1990) 137-150
>
Bi-Pb:
S.W. Yoon and H.M. Lee, CALPHAD 22 (1998) 167-178
Cu-Pb:
A. Bolcavage, C.R. Kao, S.-L. Chen and Y.A. Chang, "Thermodynamic Calculation of Phase
Stability Between Copper and Lead-Indium Solder", Applications of Thermodynamics in Synthesis
and Processing of Materials, Eds. P. Nash and B. Sundman, TMS, Warrendale, PA, 1995, 102-140
Calculated Invariant Equilibria
Reaction |
Phase |
Mass % Bi |
Mass % Cu |
Mass % Pb |
L + (Pb) -> (Cu) + (epsilon Pb)
184.9 oC |
Liquid |
36.07 |
0.01 |
63.92 |
(Pb) |
23.27 |
0 |
76.73 |
(Cu) |
0 |
100 |
0 |
(epsilon Pb) |
27.94 |
0 |
72.06 |
L -> (Cu) + (epsilon Pb) + (Bi)
125.9 oC |
Liquid |
55.51 |
0 |
44.49 |
(Cu) |
0 |
100 |
0 |
(epsilon Pb) |
42.13 |
0 |
57.87 |
(Bi) |
99.52 |
0 |
0.48 |
Phases, Crystal Structures and Model Descriptions
Phase |
Struktur- bericht Symbol |
Common Names |
Prototype |
Spacegroup |
Model* |
|
Liquid |
n/a |
L, L1, L2 |
n/a |
n/a |
(Bi,Cu,Pb)1 |
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Fcc |
A1 |
(Cu), (Pb) |
Cu |
Fm-3m |
(Bi,Cu,Pb)1(Va)1 |
Hcp |
A3 |
(epsilon Pb) |
Mg |
P63/mmc |
(Bi,Cu,Pb)1(Va)0.5 |
Rho |
A7 |
(Bi) |
alpha As |
R-3m |
(Bi,Pb)1 |
*Major species are printed bold face
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