CVD Diamond vs. Hexagonal Boron Nitride
Both CVD diamond and hexagonal boron nitride are non-oxide engineering ceramics. There are 12 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is CVD diamond and the bottom bar is hexagonal boron nitride.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 1050 | |
| 14 to 60 |
| Poisson's Ratio | 0.1 | |
| 0.11 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 500 | |
| 840 to 1610 |
| Thermal Conductivity, W/m-K | 1900 | |
| 29 to 96 |
| Thermal Expansion, µm/m-K | 1.0 | |
| 0.54 to 18 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 MHz | 5.7 | |
| 4.0 to 4.4 |
| Electrical Dissipation At 1 MHz | 0.00020 | |
| 0.00075 to 0.0018 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 13 | |
| 13 to 15 |
Otherwise Unclassified Properties
| Density, g/cm3 | 3.5 | |
| 1.9 to 2.1 |
Common Calculations
| Stiffness to Weight: Axial, points | 170 | |
| 4.1 to 18 |
| Stiffness to Weight: Bending, points | 96 | |
| 42 to 69 |
| Thermal Diffusivity, mm2/s | 1080 | |
| 9.9 to 34 |