Cu-Eu Phase Diagrams
Invariant Reactions
| T | reaction | x(Cu) | x(Eu) | w(Cu) | w(Eu) |
| C | mole/mole | mole/mole | kg/kg | kg/kg | |
| 834.3 | Liquid => Fcc + Cu5Eu | 0.8649 | 0.1351 | 0.7280 | 0.2720 |
| 592.7 | Liquid + Cu5Eu => Cu2Eu | 0.5395 | 0.4605 | 0.3288 | 0.6712 |
| 528.1 | Liquid + Cu2Eu => CuEu | 0.4094 | 0.5906 | 0.2248 | 0.7752 |
| 454.7 | Liquid + CuEu => CuEu2 | 0.2517 | 0.7483 | 0.1233 | 0.8767 |
| 451.1 | Liquid => CuEu2 + Bcc | 0.2391 | 0.7609 | 0.1162 | 0.8838 |