Composites · Carbon-matrix composites
Carbon–carbon composite
A carbon-fibre-reinforced carbon composite used where extreme temperature capability, low density and thermal-shock resistance outweigh oxidation sensitivity and cost.
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01
Overview
- Material class
- Composites
- Category
- Carbon-matrix composites
- Family
- Carbon-Matrix Composite
- Product forms
- Laminate/panel, Prepreg or semi-finished form (system dependent)
Composition
| Constituent | Min | Max | Typical | Note |
|---|---|---|---|---|
| Carbon fibre | reinforcement architecture dependent | |||
| Carbon matrix | pitch/resin/CVI route |
02
Properties and conditions
Engineering properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Density | ~1.6–2.0 | g/cm³ | Representative; verify product form and condition |
| Temperature capability | >2000 | °C | in inert/reducing environments |
| Thermal shock resistance | excellent | architecture dependent | |
| Strength retention | high at temperature | oxidation protected | |
| Oxidation resistance | poor without coating | air above ~500°C | |
| Friction stability | high | brake grades |
Conditions
Representative system
Reinforcement, matrix, architecture, cure and environment must be stated.
03
Processing and use
Processing
- Product form, thermal history and manufacturing route materially affect performance.
Applications
- Aircraft brakes
- Rocket nozzles
- Re-entry thermal protection
- Furnace fixtures
Selection considerations
- Use the current governing standard and supplier certification for design or procurement.
04
Standards and related materials
Standards and designations
| System | Designation | Note |
|---|---|---|
| Aerospace/defence specification | carbon–carbon composite | product-specific |
05
Sources and context
Sources
- NASA carbon–carbon materials referencesExisting reference
- NASA materials selection resourcesApplication reference
- U.S. Department of Energy lightweight materials programApplication reference
Confirm the applicable specification, product form and condition before using values for design or procurement.
Supply and sustainability
Availability and lead time depend on grade, product form, certification and regional supply chain.
Segregated recovery and closed-loop recycling improve material efficiency where practical.