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Carbon-carbon vs. Engineering Porcelain

Carbon-carbon belongs to the non-oxide engineering ceramics classification, while engineering porcelain belongs to the oxide-based engineering ceramics. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is carbon-carbon and the bottom bar is engineering porcelain.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 240
590
Elastic (Young's, Tensile) Modulus, GPa 95
67 to 150
Poisson's Ratio 0.32
0.17
Shear Modulus, GPa 36
34
Tensile Strength: Ultimate (UTS), MPa 19
130

Thermal Properties

Maximum Temperature: Mechanical, °C 2400
1170
Specific Heat Capacity, J/kg-K 760
600 to 1000
Thermal Conductivity, W/m-K 40
1.8 to 6.5
Thermal Expansion, µm/m-K 4.0
2.0 to 6.6

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m -5.0
9.0 to 12

Otherwise Unclassified Properties

Density, g/cm3 1.7
2.3 to 3.0

Common Calculations

Stiffness to Weight: Axial, points 31
16 to 29
Stiffness to Weight: Bending, points 89
49 to 65
Strength to Weight: Axial, points 3.0
12 to 16
Strength to Weight: Bending, points 9.1
19 to 25
Thermal Diffusivity, mm2/s 31
0.73 to 3.9
Thermal Shock Resistance, points 3.5
11 to 53