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Maximum force values obtained during the impact tests with Hopkinson bar.
| Pressure (Bar) | Aluminum Plate (Uncoated) | Aluminum Plate (Coated with PU) | Aluminum Plate (Coated with PU-NC2) |
Aluminum Plate (Coated with PU-NC3) |
Aluminum Plate (Coated with PU-NC4) |
|---|---|---|---|---|---|
| Maximum Force (kN) | Maximum Force (kN) | Maximum Force (kN) | Maximum Force (kN) | Maximum Force (kN) | |
| 0.2 | 2.0 | 2.0 | 2.1 | - | - |
| 0.3 | 2.6 | 3.0 | 2.8 | 2.3 | 3.0 |
| 0.4 | 2.5 | 3.6 | 3.8 | 3.8 | 4.0 |
| 0.5 | 1.8 | 4.1 | 4.3 | 5.0 | 4.4 |
| 0.6 | - | 3.6 | 3.9 | 4.1 | 4.8 |
| 0.7 | - | - | - | - | 4.0 |
