Table 1 Illustrates the average values of density, open porosity, compressive strength, electrical conductivity and EMI shielding effectiveness of carbon-red mud hybrid foams.
Samples | Density (g/cm3) | Open Porosity (%) | Compressive Strength (MPa) | Electrical Conductivity (S/cm) | EMI SE(dB) in the range of 8.2–12.4 GHz |
|---|---|---|---|---|---|
CF | 0.30 | 85.0 | 4.8 | 35.4 | 20.8 |
CF-RM5 | 0.35 | 83.0 | 5.8 | 29.0 | 30.3 |
CF-RM10 | 0.38 | 82.0 | 6.6 | 24.6 | 34.5 |
CF-RM15 | 0.42 | 80.0 | 7.8 | 18.0 | 39.6 |
CF-RM20 | 0.46 | 78.0 | 6.5 | 14.8 | 49.0 |
