2.5D CFC Carbon-Carbon Composite Materials
Max Graphite supplies 2.5D CFC carbon-carbon composite materials to engineers and procurement managers operating in heat treatment, semiconductor, and broader high-temperature process industries, where interlaminar shear strength and dimensional stability are direct process variables. Available across needle punch and woven preform grades in both plate/part and cylinder geometries, our 2.5D CFC range is produced under strict quality control to GB/T standards, with custom dimensions and optional purification available from a single source. From standard stock dimensions to bespoke machined components, Max Graphite supports production volumes and qualification requirements across the full application spectrum.
Specification of
2.5D CFC Carbon-Carbon Composite
Our 2.5D CFC Carbon/Carbon composite is engineered with a unique 2.5D woven architecture, providing superior interlaminar strength and isotropy compared to conventional 2D laminates. Below are the technical specifications for plate/part and cylinder grades.
Typical Grade Specifications: All values are typical; custom grades available on request.
Certifications:
Size of
2.5D CFC Carbon-Carbon Composite
We offer both standard and custom dimensions for plates/parts and cylinders.
Contact us for a detailed stock list or to discuss your custom size requirements.
What is 2.5D CFC C/C Composite Material?
2.5D CFC (Carbon Fiber Reinforced Carbon) is a carbon-carbon composite where the fiber preform is produced via needle punch technology. Unlike standard 2D laminates — which carry fiber reinforcement only in the XY plane — needlepunching introduces controlled Z-direction fibers, creating an intermediate architecture between 2D and 3D. This "near-3D" reinforcement substantially improves interlaminar shear strength (ILSS) while retaining excellent in-plane properties. The final material is fully carbonized and graphitized, making it capable of operating at temperatures above 2800°C in inert or vacuum environments. Max Graphite supplies 2.5D CFC across needle punch and woven preform variants in plate, part, and cylinder geometries, serving applications where delamination resistance and thermal stability are non-negotiable.
Key Properties of 2.5D CFC C/C Composite Material
- Enhanced Interlaminar Strength — ILSS of 8–15 MPa, significantly exceeding typical values for 2D CFC laminates.
- Low Thermal Expansion — CTE ≤1.5×10⁻⁶/℃ (20–1000℃), ensuring dimensional stability under sustained thermal load.
- High Thermal Conductivity — Tailorable via processing; low resistivity grades available for direct heating applications.
- Excellent Thermal Shock Resistance — Survives rapid temperature changes without microcracking.
- Low Ash Content — Standard grades at 600–800 ppm; high-temperature purification available down to <5 ppm for semiconductor applications.
- High Purity Carbon Matrix — No metallic impurities that could outgas at elevated temperatures.
- Good Machinability — Can be drilled, tapped, and milled to complex geometries without edge fraying.
- Oxidation Resistance (with coating) — Optional CVD-SiC coating for long-term service in oxidizing atmospheres up to 1400°C.
- Tailored Resistivity — 25–30 μΩ·m, suited to both heating and structural design requirements.
Production Process of 2.5D CFC C/C Composite Material
- Needle Punch Preforming — Carbon fiber layers are mechanically needled to create controlled Z-direction reinforcement.
- Densification — Multiple cycles of CVI (Chemical Vapor Infiltration) combined with pitch/resin impregnation and recarbonization to achieve target density.
- Carbonization — Heat treatment in inert atmosphere to convert the matrix into amorphous carbon.
- Graphitization — Final heat treatment at 2200°C to achieve crystalline structure, low ash content, and high thermal conductivity.
- Machining & Purification — CNC machining to final dimensions, with optional high-temperature purification to <5 ppm ash content available on request.
Application of
2.5D CFC Carbon-Carbon Composite
- Heat Treatment — Vacuum furnace components: CFC heating elements, furnace liners, susceptors, load plates, fasteners (bolts, nuts, threaded rods), and fixtures.
- Semiconductor — Heating chambers, susceptors, hot zones, epitaxial reactors, and sputtering targets.
- Solar CZ Furnace — Monocrystalline silicon furnace hot zone parts: CFC crucibles, crucible supports, gas guide cylinders, insulation cylinders, and support rings.
- Glass Industry — CFC bottle grippers and structural C/C parts.
- Hot Pressing Dies — High-strength dies for metal forming under elevated temperature and pressure.
- Aerospace & Defense — Rocket nozzles, leading edges, and thrust chambers.
- Braking Systems — Aircraft and high-performance automotive brake discs.
The 2.5D architecture significantly reduces delamination risk under thermal cycling and mechanical vibration.
Related Materials and Products
2D CFC Carbon/Carbon Composite
3D & 4D CFC Carbon Composite
Short Fiber (Random Fiber) CFC – Carbon/Carbon Composite
CFC Hot Press Mold Cylinder | C/C Composite Hot Press Mold
CFC Brake Disc | C/C Brake | Carbon Ceramic Brake