Table 2. Relationship between Immiscibility, Melting Temperature, and Solid Surface Energies for Different Bi-metallic Alloys.
| alloy | immiscibility | Tm,∞ (1st rule) | γs,hkl (2nd rule) | segregated element |
|---|---|---|---|---|
| Au–Ag | no | ∼ | > | Aga |
| Au–Cu | no (ordered phases) | ∼ | < | Au8 |
| Pt–Pd | no | ∼ | > | Pd54 |
| Cu–Ni | no (miscibility gap at low temperatures) | < | < | Ni27 |
| Pt–Ni | no | > | < | Pt54 |
| Ag–Cu | partial (eutectic) | ∼ | < | Ag53 |
| Au–Pt | yes | < | < | Au54 |
| Au–Ni | yes | < | < | Au55 |
| Ag–Ni | yes | < | < | Ag53 |
| Ag–Co | yes | < | < | Ag53 |
This work.