GM-120 Glass Ceramic vs. Optical Silicon
GM-120 glass ceramic belongs to the glass and glass-ceramics classification, while optical silicon belongs to the non-glass optical 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 GM-120 glass ceramic and the bottom bar is optical silicon.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.5 | |
| 2.3 |
| Elastic (Young's, Tensile) Modulus, GPa | 56 | |
| 150 |
| Flexural Strength, MPa | 57 | |
| 300 |
| Stiffness to Weight: Axial, points | 13 | |
| 35 |
| Stiffness to Weight: Bending, points | 52 | |
| 75 |
| Thermal Conductivity, W/m-K | 3.0 | |
| 150 |
| Thermal Expansion, µm/m-K | 9.5 | |
| 3.0 |