Table 2.
Physical properties of the different samples.
| Sample Name | Apparent Density (kg/m3) | Archimedes Density (kg/m3) |
Porosity with Density (%) | Closed Cells (%) | Pore Size (µm) 1 |
|---|---|---|---|---|---|
| WG(f) | 351 ± 29 | NM | 73 | NM | 27 ± 13 |
| WG LT | 835 ± 89 | 1193 ± 12 | 36 | 7 | 85 ± 67 |
| WG HT | NM | 1287 ± 9 | NM | 0 | NP |
| WG 5G LT | 1093 ± 140 | 1246 ± 3 | 16 | 3 | 65 ± 50 |
| WG 5G HT | 665 ± 68 | 1263 ± 15 | 49 | 1 | NP |
| WG 5S LT | NM | 1280 ± 18 | NM | 0 | NP |
| WG 5S HT | 612 ± 83 | 1150 ± 34 | 53 | 12 | 116 ± 138 |
| WG 5G5S LT | NM | 1223 ± 25 | NM | 4 | NP2 |
| WG 5G5S HT | NM | 1293 ± 8 | NM | 0 | NP |
The density of the raw WG powder according to Archimedes was 1278 ± 49 kg/m3 and the reported density was 1300 kg/m3. NM: not measured. 1 The pore size was measured on the 500× SEM images. 2 If no porosity was possible to observe at this magnification, it was considered as a non-porous sample (NP).