Hexagonal Boron Nitride vs. Carbon-carbon
Both hexagonal boron nitride and carbon-carbon are non-oxide engineering ceramics. There are 13 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is hexagonal boron nitride and the bottom bar is carbon-carbon.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 21 to 250 | |
| 240 |
| Elastic (Young's, Tensile) Modulus, GPa | 14 to 60 | |
| 95 |
| Poisson's Ratio | 0.11 | |
| 0.32 |
Thermal Properties
| Maximum Temperature: Corrosion, °C | 1140 to 2800 | |
| 350 |
| Maximum Temperature: Mechanical, °C | 1030 to 2350 | |
| 2400 |
| Specific Heat Capacity, J/kg-K | 840 to 1610 | |
| 760 |
| Thermal Conductivity, W/m-K | 29 to 96 | |
| 40 |
| Thermal Expansion, µm/m-K | 0.54 to 18 | |
| 4.0 |
Electrical Properties
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 13 to 15 | |
| -5.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.9 to 2.1 | |
| 1.7 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.1 to 18 | |
| 31 |
| Stiffness to Weight: Bending, points | 42 to 69 | |
| 89 |
| Thermal Diffusivity, mm2/s | 9.9 to 34 | |
| 31 |