Research Article
The Effect of Commercial Rice Husk Ash Additives on the Porosity, Mechanical Properties, and Microstructure of Alumina Ceramics
Table 2
Different ratios of rice husk ash with alumina used to fabricate porous ceramics, porosity characterization, and density.
| Rice husk ash content (wt%) | Al2O3 ratio (wt%) | Overall porosity (vol%) | Open porosity (vol%) | Green density (g/cm3) | Sintered bulk density (g/cm3) | Relative density (%) |
| 0 | 100 | 18.45 | 10.76 | 1.92 | 2.99 | 75.89 | 10 | 90 | 42.97 | 24.29 | 1.86 | 2.25 | 57.11 | 20 | 80 | 48.09 | 27.38 | 1.76 | 2.04 | 51.78 | 30 | 70 | 47.63 | 23.94 | 1.67 | 2.06 | 52.28 | 40 | 60 | 49.44 | 24.00 | 1.58 | 1.99 | 50.51 | 50 | 50 | 49.04 | 20.15 | 1.53 | 2.01 | 51.02 |
|
|