CVD Diamond vs. Soda-lime Glass
CVD diamond belongs to the non-oxide engineering ceramics classification, while soda-lime glass belongs to the glass and glass-ceramics. There are 16 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is CVD diamond and the bottom bar is soda-lime glass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 1050 | |
| 70 to 71 |
| Poisson's Ratio | 0.1 | |
| 0.23 |
| Tensile Strength: Ultimate (UTS), MPa | 750 | |
| 41 to 180 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 500 | |
| 720 to 800 |
| Thermal Conductivity, W/m-K | 1900 | |
| 1.0 to 1.1 |
| Thermal Expansion, µm/m-K | 1.0 | |
| 8.8 to 9.0 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 MHz | 5.7 | |
| 7.3 to 7.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 3.5 | |
| 2.4 |
| Light Transmission Range, µm | 0.22 to 100 | |
| 0.35 to 2.5 |
| Refractive Index | 2.4 | |
| 1.5 |
Common Calculations
| Stiffness to Weight: Axial, points | 170 | |
| 16 |
| Stiffness to Weight: Bending, points | 96 | |
| 56 |
| Strength to Weight: Axial, points | 59 | |
| 4.6 to 20 |
| Strength to Weight: Bending, points | 52 | |
| 11 to 28 |
| Thermal Diffusivity, mm2/s | 1080 | |
| 0.51 to 0.6 |
| Thermal Shock Resistance, points | 51 | |
| 4.7 to 20 |