| Sintering temperature (˚C) | Specific gravity (g/cc) | ||
| Without addition of any additive [10] | Addition of Fe2O3 additive | Addition of TiO2 additive | |
| 1550 | 3.52 | 3.48 | 3.36 |
| 1600 | 3.42 | 3.59 | 3.48 |
| 1650 | 3.55 | 3.41 | 3.75 |