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 |