MakeItFrom.com
Menu (ESC)

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