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.


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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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Composites in aircraft engines focus of pre-conference seminar CompositesWorld

Chris Red of Composites Forecasts and Consulting LLC will present "Composites in Turbofan Aircraft Engines and Nacelles: 2014-2023" on Dec. 9 in a pre-conference seminar leading up to the Carbon Fiber 2014 conference in La Jolla, Calif., USA.

Hexcel breaks ground on new R&T facility CompositesWorld

The new research and technology (R&T) facility at Hexcel's Duxford, U.K., site will focus on leading-edge technologies for the expansion of composites in aerospace and industrial applications.

Toho Tenax announces new rapid-cure prepreg for high volume production CompositesWorld

Three-minute cure at 150 degrees C and formability at low pressure of 72.5 psi aimed at automotive production volumes of 50,000 parts per year.

New yacht to feature thin-ply carbon fiber multiaxials CompositesWorld

Chomarat's C-PLY thin-ply carbon fiber multiaxial reinforcements will be used to fabricate Jean-Marie Finot's latest yacht, the Albatros.

ATK receives Boeing qualification for 787 composite frames CompositesWorld

ATK's Clearfield, Utah, facility will supply composite frames for the Boeing 787-9 center and aft fuselages, and support the same structures on the 787-10.

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