Calculated Liquidus Projection
 |
Sn-rich Part
 |
Status of the thermodynamic description:
Ternary liquid adjusted to reproduce the eutectic
L ->Ag3Sn + Cu6Sn5 + (Sn)
U.R. Kattner, NIST, 2000
Sources of the binary descriptions:
Ag-Cu: F.H. Hayes, H.L. Lukas, G.
Effenberg and G.Petzow, Z. Metallkde. 77 (1986) 749-754
Ag-Sn: C.-S. Oh, J.-H. Shim,
B.-J. Lee and D.N. Lee, J. Alloys and Compounds 238 (1996) 155-166
Cu-Sn: J.H. Shim, C.-S. Oh, B.-J.
Lee and D.N. Lee, Z. Metallkde. 87 (1996) 205-212
Calculated Invariant Equilibria
| Reaction |
Phase |
Mass % Ag |
Mass % Cu |
Mass % Sn |
| L + beta -> (Cu) + gamma
641.6 oC |
Liquid |
40.11 |
35.76 |
24.13 |
| beta |
0 |
75.74 |
24.26 |
| (Cu) |
2.39 |
80.37 |
17.24 |
| gamma |
0 |
73.57 |
26.43 |
| L + (Cu) -> (Ag) + gamma
636.4 oC |
Liquid |
44.42 |
32.17 |
23.41 |
| (Cu) |
2.40 |
80.42 |
17.18 |
| (Ag) |
88.24 |
2.71 |
9.05 |
| gamma |
0 |
73.49 |
26.51 |
| L -> gamma + Cu10Sn3 + Cu3Sn
640.1 oC |
Liquid |
73.13 |
8.50 |
18.36 |
| gamma |
27.37 |
38.40 |
34.24 |
| Cu10Sn3 |
0 |
64.06 |
35.94 |
| Cu3Sn |
0 |
61.63 |
38.37 |
| L + (Ag) + gamma -> Cu10Sn3
612.6 oC |
Liquid |
49.64 |
22.85 |
27.51 |
| (Ag) |
86.29 |
1.93 |
11.78 |
| gamma |
0 |
67.58 |
32.42 |
| Cu10Sn3 |
0 |
64.06 |
35.94 |
| L + (Ag) + Cu10Sn3 -> Cu3Sn
611.0 oC |
Liquid |
50.17 |
22.06 |
27.77 |
| (Ag) |
86.14 |
1.88 |
11.98 |
| Cu10Sn3 |
0 |
64.06 |
35.94 |
| Cu3Sn |
0 |
61.63 |
38.37 |
| L + (Ag) -> (zeta Ag) + Cu3Sn
574.4 oC |
Liquid |
53.46 |
13.07 |
33.47 |
| (Ag) |
83.26 |
1.09 |
15.65 |
| (zeta Ag) |
82.75 |
0 |
17.25 |
| Cu3Sn |
0 |
61.63 |
38.37 |
| L + (zeta Ag) -> Ag3Sn + Cu3Sn
459.0 oC |
Liquid |
38.77 |
8.54 |
52.69 |
| (zeta Ag) |
75.96 |
0 |
24.04 |
| Ag3Sn |
73.17 |
0 |
26.83 |
| Cu3Sn |
0 |
61.63 |
38.37 |
| L + Cu3Sn -> Ag3Sn + Cu6Sn5
356.2 oC |
Liquid |
19.26 |
5.86 |
74.88 |
| Cu3Sn |
0 |
61.63 |
38.37 |
| Ag3Sn |
73.17 |
0 |
26.83 |
| Cu6Sn5 |
0 |
39.07 |
60.93 |
| L -> Ag3Sn + Cu6Sn5 + (Sn)
215.9 oC |
Liquid |
3.73 |
0.85 |
95.42 |
| Ag3Sn |
73.17 |
0 |
26.83 |
| Cu6Sn5 |
0 |
39.07 |
60.93 |
| (Sn) |
0.07 |
0 |
99.93 |
| L + gamma + Cu3Sn
677.0 oC
Univariant maximum |
Liquid |
7.51 |
48.64 |
43.83 |
| gamma |
0 |
61.63 |
38.37 |
| Cu3Sn |
0 |
61.63 |
38.37 |
Phases, Crytal Structures and Model Descriptions
| Phase |
Struktur-
bericht
Symbol |
Common Names |
Prototype |
Spacegroup |
Model* |
| |
| Liquid |
n/a |
L |
n/a |
n/a |
(Ag,Cu,Sn)1 |
| |
| Fcc |
A1 |
(Ag), (Cu) |
Cu |
Fm-3m |
(Ag,Cu,Sn)1(Va)1 |
| Bcc |
A2 |
(beta Cu), beta |
W |
Im-3m |
(Cu,Sn)1(Va)3 |
| Hcp |
A3 |
(zeta Ag), (epsilon Pb) |
Mg |
P63/mmc |
(Ag,Sn)1(Va)0.5 |
| Bct |
A5 |
(Sn), (beta Sn) |
beta Sn |
I41/amd |
(Ag,Cu,Sn)1 |
| |
| Ag3Sn |
D0alpha |
epsilon |
beta Cu3Ti |
Pmmn |
(Ag)0.75(Sn)0.25 |
| Cu3Sn.h |
D03 |
gamma |
BiF3 |
Fm-3m |
(Cu,Sn)0.75(Cu,Sn)0.25 |
| Cu41Sn11 |
... |
delta |
... |
F-43m |
Cu0.788Sn0.212 |
| Cu10Sn3 |
... |
zeta |
... |
P63 |
Cu0.769Sn0.231 |
| Cu3Sn |
... |
epsilon |
... |
Cmcm |
Cu0.75Sn0.25 |
| Cu6Sn5 |
B81 |
eta, Cu6Sn5.h |
NiAs |
P63/mmc |
Cu0.545Sn0.455 |
| Cu6Sn5' |
... |
eta ', Cu6Sn5.l |
... |
... |
Cu0.545Sn0.455 |
*Major species are printed bold face
|
