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The possible phases (according to the Al-Cu binary phase diagram).
| Area Spectrum No. | Al (wt.%) |
Cu (wt.%) |
Possible Phases |
|---|---|---|---|
| 13 | 99.2 | 0.8 | Cu(α) + Al(α) |
| 14 | 81.4 | 18.6 | Cu + Al2Cu + Al5Cu8 |
| 15 | 92.6 | 7.4 | Cu + Al2Cu + Al5Cu8 |
| 16 | 53.6 | 46.4 | Al2Cu + Al9Cu11 |
| 17 | 93 | 7 | Cu + Al2Cu |
