Alumina vs. Aluminosilicate Glass
Alumina belongs to the oxide-based engineering ceramics classification, while aluminosilicate glass belongs to the glass and glass-ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.
For each property being compared, the top bar is alumina and the bottom bar is aluminosilicate glass.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 3.4 to 4.1 | |
| 2.4 |
| Dielectric Constant (Relative Permittivity) At 1 MHz | 7.8 to 11 | |
| 6.3 |
| Elastic (Young's, Tensile) Modulus, GPa | 220 to 370 | |
| 87 |
| Electrical Dissipation At 1 MHz | 0.00049 to 0.0013 | |
| 0.0037 |
| Fracture Toughness, MPa-m1/2 | 3.7 to 7.2 | |
| 0.9 |
| Stiffness to Weight: Axial, points | 35 to 53 | |
| 20 |
| Stiffness to Weight: Bending, points | 57 to 62 | |
| 63 |