High-silica Glass vs. Graphite
High-silica glass belongs to the glass and glass-ceramics classification, while graphite belongs to the non-oxide engineering ceramics. There are 6 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 high-silica glass and the bottom bar is graphite.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.4 | |
| 1.8 |
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 21 |
| Flexural Strength, MPa | 34 | |
| 80 |
| Stiffness to Weight: Axial, points | 19 | |
| 6.7 |
| Stiffness to Weight: Bending, points | 61 | |
| 53 |
| Thermal Expansion, µm/m-K | 0.6 to 0.75 | |
| 4.9 |