ella

The density of alumina ceramics ranges from 3.62 to 3.95 g/cm³ across the six commercial purity grades (95%, 97%, 99%, 99.5%, 99.7%, and 99.99%), all approaching the theoretical density of pure Al2O3 at 3.98 g/cm³. Density is the property engineers check first when comparing grades, because every other mechanical, thermal, and electrical figure in the

The six commercial alumina grades we produce (95%, 97%, 99%, 99.5%, 99.7%, and 99.99%) span a wide performance range. Density runs from 3.62 to 3.95 g/cm³, Vickers hardness HV 1410 to 1660, bending strength 292 to 392 MPa, and dielectric strength 17.84 to 24.38 kV/mm. Every value below is grade-specific, drawn from our internal quality