Al-Er Phase Diagrams
Invariant Reactions
| T | reaction | x(Al) | x(Er) | w(Al) | w(Er) |
| C | mole/mole | mole/mole | kg/kg | kg/kg | |
| 1131.0 | Liquid + Al2Er => AlEr | 0.6500 | 0.3500 | 0.2305 | 0.7695 |
| 1079.5 | Liquid => AlEr + Al2Er3 | 0.5000 | 0.5000 | 0.1389 | 0.8611 |
| 1071.3 | Liquid + Al2Er => Al3Er | 0.7500 | 0.2500 | 0.3261 | 0.6739 |
| 1056.8 | Liquid => Al2Er3 + AlEr2 | 0.3438 | 0.6562 | 0.0779 | 0.9221 |
| 1000.8 | Liquid => AlEr2 + Hcp | 0.2466 | 0.7534 | 0.0502 | 0.9498 |
| 655.8 | Liquid => Al3Er + Fcc | 0.9935 | 0.0065 | 0.9613 | 0.0387 |