Zone: Carbon Fiber
0311HPC_WIP1.jpg Overview

Carbon fiber — by far the most widely used fiber in high-performance applications — is produced from a variety of precursors, including polyacrylonitrile (PAN), rayon and pitch. The precursor fibers are heated and stretched to create the high-strength fibers. The first high-performance carbon fibers on the market were made from rayon precursor. PAN- and pitch-based fiber have replaced rayon-based fiber in most applications, but the latter’s “dogbone” cross-section often makes it the fiber of choice for carbon/carbon (C/C) composites. PAN-based carbon fibers are the most versatile and widely used. They offer an amazing range of properties, including excellent strength — to 1,000 ksi — and high stiffness. Pitch fibers, made from petroleum or coal tar pitches, have high to extremely high stiffness and low to negative axial CTE. Their CTE properties are especially useful in spacecraft applications that require thermal management, such as electronic instrumentation housings. Although they are stronger than glass or aramid fibers, carbon fibers are not only less impact-resistant but also can experience galvanic corrosion in contact with metal. Fabricators overcome the latter problem by using a barrier material or veil ply — often fiberglass/epoxy — during laminate layup.


Most Recent Content: Carbon Fiber
Forged composites replace complex metal parts

Powerhouse manufacturer’s high-pressure compression molding process forms prepregged CFRP components with forged-metal properties.
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Deakin University carbon fiber center sees a successful first year CompositesWorld

Australia-based Deakin University recently received an Australian Research Council $4.7 million grant for the new Future Fibers Industrial Transformation Research Hub.

Aeroengine Composites, Part 2: CFRPs expand CompositesWorld

Proven in fan blade/case applications, carbon fiber-reinforced polymers migrate to previously unanticipated destinations nearer the engine “hot zone.”

Recycling specialist MIT-RCF becomes Carbon Conversions CompositesWorld

The name change is designed to emphasize the company's emphasis on the supply of high-quality, advanced materials.

UTC Aerospace Systems to provide wheels, carbon brakes for easyJet CompositesWorld

UTC Aerospace Systems will manufacture the wheels and carbon brakes for the British airline's 68 new Airbus A320neo aircraft via its Landing Systems facility in Troy, OH.

Composite brackets for life-of-aircraft service CompositesWorld

Reinforced PEEK molding formulated for jet fuel/hydraulic fluid immersion.

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