Carbon-Carbon

Siblings

Graphite
Polycrystalline CVD Diamond

Notes

A composite of carbon fiber in a graphite (carbon) matrix, also known as "Carbon Fiber Reinforced Carbon". Properties given for 50% fiber content. As with any fiber-reinforced composite, mechanical properties vary substantially with fiber content.

Properties

Compare
Bulk Modulus
87 GPa, or 12 106 psi
Compressive (Crushing) Strength
235 MPa, or 34.0 103 psi
Density
1.7 g/cm3, or 100 lb/ft3
Elastic (Young's) Modulus
95 GPa, or 13 106 psi
Electrical Conductivity
0.09 % IACS
Hardness
Vickers (HV)
70
Maximum Temperature
Typical Guideline
2000 °C, or 3600 °F
Maximum Temperature
Mechanical Load
2800 °C, or 5000 °F
Poisson's Ratio
0.32
Shear Modulus
36 GPa, or 5.2 106 psi
Specific Heat Capacity
Conventional
755 J/kg-K
Specific Heat Capacity
Volumetric
1200 103 J/m3-K
Speed of Sound
230 103 m/s, or 750 103 ft/s
Stiffness-to-Weight Ratio
Bulk
51 MN-m/kg
Stiffness-to-Weight Ratio
Shear
21 MN-m/kg
Stiffness-to-Weight Ratio
Tensile
55 MN-m/kg
Strength-to-Weight Ratio
Compressive
130 kN-m/kg
Strength-to-Weight Ratio
Tensile, Ultimate
10 kN-m/kg
Tensile Strength
Ultimate
18.5 MPa, or 2.68 103 psi
Thermal Conductivity
Ambient
40 W/m-K
Thermal Diffusivity
Thermal Expansion
20 to 100°C
4 µm/m-K

See Also

E. Yesuda et al. (editors), Carbon Alloys: Novel Concepts to Develop Carbon Science and Technology, 2003 (link).

John D. Buckley and Dan D. Edie, Carbon-Carbon Materials and Composites, 1994 (link).

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