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Carbon-carbon vs. Titanium Diboride

Both carbon-carbon and titanium diboride 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. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is carbon-carbon and the bottom bar is titanium diboride.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 240
3540
Elastic (Young's, Tensile) Modulus, GPa 95
290
Poisson's Ratio 0.32
0.11
Tensile Strength: Ultimate (UTS), MPa 19
280

Thermal Properties

Maximum Temperature: Mechanical, °C 2400
1270
Specific Heat Capacity, J/kg-K 760
870
Thermal Conductivity, W/m-K 40
58
Thermal Expansion, µm/m-K 4.0
8.0

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m -5.0
-6.5

Otherwise Unclassified Properties

Density, g/cm3 1.7
4.5

Common Calculations

Stiffness to Weight: Axial, points 31
35
Stiffness to Weight: Bending, points 89
49
Strength to Weight: Axial, points 3.0
17
Strength to Weight: Bending, points 9.1
21
Thermal Diffusivity, mm2/s 31
15
Thermal Shock Resistance, points 3.5
8.7