Oxide Ceramic Matrix Composites
Ceramic Matrix Composites specifically designed for high-temperature oxidation sensitive applications. These materials can be used up to 1200°C (2200°F) in air environments and are primarily used in both Aerospace and Gas Turbine applications. Oxide ceramic matrix composite products are based upon sol-gel derived matrices and 3M Corporation Nextel™ fiber products (Oxide fibers in an Oxide matrix). Ox-Ox CMC materials, specifically alumina-based Oxide CMC materials are ideal for both long duration applications like turbine engines as well as single use very hot short duration exposure missions where thermal shock resistance and thermal insulation are critical.
Benefits
Ceramic Matrix System
- Water Based Sol-Gel Processing
- Versatile Matrix Chemistry
Physical Attributes
- Low Cost
- Environmental Stability
Reinforcing Fiber Flexibility
- Nextel™ 312 - Lowest Cost
- Nextel™ 720 - Highest Temperature & Creep Performance
- Nextel™ 610 - Highest Strength
No Fiber Interface Coating
Typically Used For
Product Lineup
COIC offers the broadest portfolio of Ox-Ox CMC systems in the industry. The primary oxide CMC matrix systems include Aluminosilicate, Alumina, and Alumina Mullite. The Ox CMC systems are reinforced with 3M Nextel™ fibers. Fiber selection is based on a combination of end-use environment and processing compatibility with the Oxide matrix chemistries. The most commonly used fibers include Nextel™ 312, Nextel™ 610, and Nextel™ 720.
| Product Lineup | Nextel™ Fiber | Matrix | Strength (ksi) | Modulus (msi) | Max Use Temp - °C (Continuous/Short-Term) |
|---|---|---|---|---|---|
| AS/N312 | N312 | Aluminosilicate | 19.3 | 5.39 | 815/982 |
| AS/N610 | N610 | Aluminosilicate | 57 | 16.7 | 982/1093 |
| AS/N720 | N720 | Aluminosilicate | 33 | 11.4 | 1000/1100 |
| A/N720 | N720 | Alumina | 25.8 | 11.4 | 1200/1300 |
| AM/N720 | N720 | Aluminosilicate/Mullite | 19.6 | 9.3 | 1200/1400 |
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