Calculated Liquidus Projection
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Status of the thermodynamic description:
Extrapolated from binary thermodynamic descriptions
Sources of the binary descriptions:
Ag-Pb:
B.-Z. Lee, C.-S. Oh and D.N. Lee, J. Alloys & Compds. 215 (1994) 293-301
Ag-Sn:
C.-S. Oh, J.-H. Shim, B.-J. Lee and D.N. Lee, J. Alloys & Compds. 238 (1996) 155-166
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 % Ag |
Mass % Pb |
Mass % Sn |
L + (Ag) -> (Pb) + (zeta Ag)
307.8 oC |
Liquid |
1.80 |
98.02 |
0.18 |
(Ag) |
89.21 |
0.78 |
10.01 |
(Pb) |
0.08 |
99.80 |
0.12 |
(zeta Ag) |
87.98 |
0.12 |
11.90 |
L + (zeta Ag) -> (Pb) + Ag3Sn
307.2 oC |
Liquid |
1.38 |
96.18 |
2.44 |
(zeta Ag) |
80.26 |
0.05 |
19.69 |
(Pb) |
0.06 |
98.35 |
1.59 |
Ag3Sn |
73.17 |
0 |
26.83 |
L -> Ag3Sn + (Pb) + (Sn)
177.3 oC |
Liquid |
1.50 |
36.34 |
62.16 |
Ag3Sn |
73.17 |
0 |
26.83 |
(Pb) |
0.01 |
82.34 |
17.65 |
(Sn) |
0.04 |
3.24 |
96.72 |
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 |
(Ag,Pb,Sn)1 |
|
Fcc |
A1 |
(Ag), (Pb) |
Cu |
Fm-3m |
(Ag,Pb,Sn)1(Va)1 |
Hcp |
A3 |
(zeta Ag), (epsilon Pb) |
Mg |
P63/mmc |
(Ag,Pb,Sn)1(Va)0.5 |
Bct |
A5 |
(Sn), (beta Sn) |
beta Sn |
I41/amd |
(Ag,Pb,Sn)1 |
|
Ag3Sn |
D0alpha |
epsilon |
beta Cu3Ti |
Pmmn |
(Ag)0.75(Sn)0.25 |
*Major species are printed bold face
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