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| Item | Unit | 95% Al2O3 | 99% Al2O3 | 99.7% Al2O3 | ZTA |
| Density | g/cm³ | 3.6 | 3.89 | 3.9 | 4.3 |
| Firing Temp | °C | 1680 | 1700 | 1800 | 1600 |
| Hardness | HV | 1500 | 1600 | 1700 | 2000 |
| Flexural Strength | Kgf/cm² | 3000 | 3500 | 3500 | 4500 |
| Compressive Strength | Kgf/cm² | 25000 | 30000 | 30000 | 45000 |
| Fracture Toughness | MPa/m | 3~4 | 3.8 | 4 | 5~6 |