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Carbon-carbon vs. Zirconia

Carbon-carbon belongs to the non-oxide engineering ceramics classification, while zirconia belongs to the oxide-based engineering ceramics. There are 16 material properties with values for both materials. Properties with values for just one material (10, 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 zirconia.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 240
1260 to 3080
Elastic (Young's, Tensile) Modulus, GPa 95
190 to 200
Poisson's Ratio 0.32
0.25 to 0.29
Tensile Strength: Ultimate (UTS), MPa 19
410 to 450

Thermal Properties

Maximum Temperature: Mechanical, °C 2400
500 to 1330
Specific Heat Capacity, J/kg-K 760
400 to 510
Thermal Conductivity, W/m-K 40
2.2 to 4.3
Thermal Expansion, µm/m-K 4.0
8.8 to 9.5

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m -5.0
4.5 to 11

Otherwise Unclassified Properties

Density, g/cm3 1.7
5.7 to 6.0

Common Calculations

Stiffness to Weight: Axial, points 31
19
Stiffness to Weight: Bending, points 89
33 to 34
Strength to Weight: Axial, points 3.0
19 to 22
Strength to Weight: Bending, points 9.1
21 to 23
Thermal Diffusivity, mm2/s 31
0.73 to 1.8
Thermal Shock Resistance, points 3.5
15 to 19