Item | Unit | Φ0.05~Φ3 | Φ3~Φ5 | Φ7~Φ55 |
Ingredient | % | ZrO₂(94.6%)+y₂0₃(5.4%) | ZrO₂(94.6%)+y₂0₃(5.4%) | ZrO₂(94.6%)+y₂0₃(5.4%) |
Density | g/cm³ | ≥6.01 | ≥6.05 | ≥6.05 |
Hardness | HV | ≥1150 | ≥1150 | ≥1150 |
Filled Density | g/cm³ | 3.8 | 3.75 | 3.75 |
Crushing strength | KN | ≥2 | ≥2 | ≥2 |
Self-abrasion | P·P·M/h | ≤1 | ≤5 | ≤8 |
Elastic modulis | GPa | / | / | ≥200 |
Cracking toughness | MPa·m½ | / | / | ≥10 |