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Geometric and heat transfer characterization for each of the FLSP test surfaces.
| Sample | Peak-to-valley height (μm) | Surface roughness (μm) | Surface area ratio | Biot number |
|---|---|---|---|---|
| Tall Inconel | 55.2 | 12.2 | 8.1 | 0.21 |
| Short Inconel | 9.1 | 1.8 | 2.1 | 0.03 |
| Medium SS | 35.8 | 7.4 | 4.7 | 0.14 |
| Medium copper | 37.5 | 8.6 | 3.1 | 0.006 |
| Hysteresis SS | 27.1 | 5.1 | 5.1 | 0.1 |
