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to Properties of carbon materials
(submitted by the website administration)
| Pyrolytic graphite (substrate nucleated) | ||||
| Chemical composition: carbon (C) | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 2.2*10³ | kg/m³ | 137 | lb/ft³ |
|---|---|---|---|---|
| Flexural strength WL | 89.6 | MPa | 13000 | psi |
| Compressive strength WL | 103.4 | MPa | 15000 | psi |
| Compressive strength AL | 172.4 | MPa | 25000 | psi |
| Shear strength WL | 6.9 | MPa | 1000 | psi |
| Thermal expansion WL | 0.9*10-6 | ºCˉ¹ | 0.5*10-6 | in/(in*ºF) |
| Thermal expansion AL | 11.7*10-6 | ºCˉ¹ | 6.5*10-6 | in/(in*ºF) |
| Thermal conductivity WL | 400 | W/(m*K) | 2772 | BTU*in/(hr*ft²*ºF) |
| Thermal conductivity AL | 3.5 | W/(m*K) | 24.3 | BTU*in/(hr*ft²*ºF) |
| Electric resistivity WL | 5*10-6 | Ohm*m | 5*10-4 | Ohm*cm |
| Electric resistivity AL | 5*10-3 | Ohm*m | 0.5 | Ohm*cm |
| Max. work temperature in air | 649 | ºC | 1200 | ºF |
WL - with crystal layers
AL - across crystal layers
Applications: carbon fibers reinforced composites, heat spreaders and sinks in electronics, nuclear reactors, missile parts.
