Cu-Pu Phase Diagrams
Invariant Reactions
| T | reaction | x(Cu) | x(Pu) | w(Cu) | w(Pu) |
| C | mole/mole | mole/mole | kg/kg | kg/kg | |
| 930.5 | Liquid + Cu17Pu4 => Cu6Pu | 0.8601 | 0.1399 | 0.6155 | 0.3845 |
| 900.9 | Liquid + Cu17Pu4 => Cu4Pu | 0.7285 | 0.2715 | 0.4113 | 0.5887 |
| 876.3 | Liquid => Fcc + Cu6Pu | 0.9240 | 0.0760 | 0.7600 | 0.2400 |
| 857.4 | Liquid => Cu4Pu + Cu2Pu | 0.6939 | 0.3061 | 0.3713 | 0.6287 |
| 626.7 | Liquid => Cu2Pu + Eps_Pu | 0.0627 | 0.9373 | 0.0171 | 0.9829 |
| 447.3 | Eps_Pu => Cu2Pu + Delta_Pu | 0.0141 | 0.9859 | 0.0037 | 0.9963 |
| 427.6 | Delta_Pu => Cu2Pu + Delta2_Pu | 0.0008 | 0.9992 | 0.0002 | 0.9998 |
| 319.9 | Cu2Pu + Delta2_Pu => Gamma_Pu | 0.6667 | 0.3333 | 0.3425 | 0.6575 |
| 214.8 | Cu2Pu + Gamma_Pu => Beta_Pu | 0.6667 | 0.3333 | 0.3425 | 0.6575 |
| 124.5 | Beta_Pu => Cu2Pu + Alpha_Pu | 0.6667 | 0.3333 | 0.3425 | 0.6575 |