Boron Carbide vs. Carbon-carbon
Both boron carbide and carbon-carbon are non-oxide engineering ceramics. There are 16 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is boron carbide and the bottom bar is carbon-carbon.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 1710 to 2200 | |
| 240 |
| Elastic (Young's, Tensile) Modulus, GPa | 240 to 460 | |
| 95 |
| Poisson's Ratio | 0.17 to 0.19 | |
| 0.32 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 19 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 1000 to 2500 | |
| 2400 |
| Specific Heat Capacity, J/kg-K | 950 | |
| 760 |
| Thermal Conductivity, W/m-K | 31 to 90 | |
| 40 |
| Thermal Expansion, µm/m-K | 4.5 to 5.6 | |
| 4.0 |
Electrical Properties
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 0 to 11 | |
| -5.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.1 to 2.7 | |
| 1.7 |
Common Calculations
| Stiffness to Weight: Axial, points | 63 to 100 | |
| 31 |
| Stiffness to Weight: Bending, points | 91 to 100 | |
| 89 |
| Strength to Weight: Axial, points | 37 to 47 | |
| 3.0 |
| Strength to Weight: Bending, points | 42 to 53 | |
| 9.1 |
| Thermal Diffusivity, mm2/s | 16 to 38 | |
| 31 |
| Thermal Shock Resistance, points | 9.7 to 20 | |
| 3.5 |