Titanium Diboride vs. Silicon Carbide
Both titanium diboride and silicon carbide are non-oxide engineering ceramics.
For each property being compared, the top bar is titanium diboride and the bottom bar is silicon carbide.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 3540 | |
| 2780 to 3900 |
| Elastic (Young's, Tensile) Modulus, GPa | 290 | |
| 370 to 490 |
| Flexural Strength, MPa | 380 | |
| 410 to 600 |
| Fracture Toughness, MPa-m1/2 | 6.5 | |
| 3.4 to 4.6 |
| Knoop Hardness | 2800 | |
| 2500 to 2900 |
| Poisson's Ratio | 0.11 | |
| 0.14 to 0.21 |
| Tensile Strength: Ultimate (UTS), MPa | 280 | |
| 210 to 370 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 1270 | |
| 500 to 1590 |
| Maximum Thermal Shock, °C | 110 | |
| 210 to 660 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 670 to 1180 |
| Thermal Conductivity, W/m-K | 58 | |
| 120 to 170 |
| Thermal Expansion, µm/m-K | 8.0 | |
| 4.0 to 4.5 |
Electrical Properties
| Electrical Resistivity Order of Magnitude, 10x Ω-m | -6.5 | |
| 0.94 to 3.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.5 | |
| 3.0 to 3.2 |
Common Calculations
| Stiffness to Weight: Axial, points | 35 | |
| 69 to 84 |
| Stiffness to Weight: Bending, points | 49 | |
| 79 to 82 |
| Strength to Weight: Axial, points | 17 | |
| 18 to 34 |
| Strength to Weight: Bending, points | 21 | |
| 24 to 38 |
| Thermal Diffusivity, mm2/s | 15 | |
| 38 to 79 |
| Thermal Shock Resistance, points | 8.7 | |
| 6.9 to 18 |