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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Zoltek to expand Hungarian carbon fiber facility CompositesWorld

Carbon fiber manufacturer Zoltek has signed an agreement to expand its facility in Nyergesújfalu, Hungary, already the largest carbon fiber production plant in the world.

CFRP air spring support for buses wins JEC Innovation Award CompositesWorld

Automated process delivers hollow braided support structure that cuts weight 70% vs. steel.

Solar Impulse completes fourth of 12 legs in global tour CompositesWorld

The solar-powered, composites-intensive aircraft is a third of the way through its round-the-world tour, landing on March 19 in Mandalay, Republic of the Union of Myanmar.

First South Carolina-built 787-9 delivered by Boeing CompositesWorld

United Airlines is taking delivery of the first South Carolina-built 787-9 Dreamliner — a longer version of the 787-8 and also the 250th Dreamliner delivered by Boeing.

Exel Composites, BMW sign cooperation agreement CompositesWorld

Finland-based Exel Composites will be BMW's technology partner in development of next-generation carbon fiber composites for passenger cars.

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