Beryllia vs. High-silica Glass
Beryllia belongs to the oxide-based engineering ceramics classification, while high-silica glass belongs to the glass and glass-ceramics. There are 9 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is beryllia and the bottom bar is high-silica glass.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.9 | |
| 2.4 |
| Dielectric Strength (Breakdown Potential), kV/mm | 11 | |
| 34 |
| Elastic (Young's, Tensile) Modulus, GPa | 350 | |
| 78 |
| Electrical Dissipation At 1 MHz | 0.00060 | |
| 0.00044 to 0.00088 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 13 | |
| 12 |
| Flexural Strength, MPa | 240 | |
| 34 |
| Stiffness to Weight: Axial, points | 67 | |
| 19 |
| Stiffness to Weight: Bending, points | 82 | |
| 61 |
| Thermal Expansion, µm/m-K | 8.0 | |
| 0.6 to 0.75 |