Gallium Arsenide vs. Machinable Glass-ceramic
Gallium arsenide belongs to the non-glass optical ceramics classification, while machinable glass-ceramic belongs to the glass and glass-ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.
For each property being compared, the top bar is gallium arsenide and the bottom bar is machinable glass-ceramic.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 5.3 | |
| 2.7 |
| Elastic (Young's, Tensile) Modulus, GPa | 85 | |
| 67 |
| Knoop Hardness | 750 | |
| 250 |
| Poisson's Ratio | 0.31 | |
| 0.29 |
| Specific Heat Capacity, J/kg-K | 360 | |
| 790 |
| Stiffness to Weight: Axial, points | 8.9 | |
| 14 |
| Stiffness to Weight: Bending, points | 28 | |
| 51 |
| Thermal Conductivity, W/m-K | 47 | |
| 1.2 |
| Thermal Diffusivity, mm2/s | 25 | |
| 0.56 |
| Thermal Expansion, µm/m-K | 5.6 | |
| 21 |