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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Toray plans U.S. expansion for Americas: Carbon precursor/fiber/prepreg lines? CompositesWorld

Toray expands in South Carolina and Washington State.

Novator gets Boeing order CompositesWorld

The Swedish supplier of orbital drilling systems continues its relationship with the aircraft OEM as 787 production ramps up.

Far-UK develops fast processes for carbon fiber auto parts CompositesWorld

The Nottingham spinoff is working with Axon Automotive, and developing new technologies for complex composite shapes.

Granta Design announces AutoMatIC consortium CompositesWorld

The new industry collaboration, announced at the SAE World Congress, will bring together OEMs and suppliers to develop best practices for material information and use.

Quickstep signs long-term agreement to supply JSF parts CompositesWorld

Quickstep will deliver 18 parts in each ship set to Marand Precision Engineering for the JSF's tail assembly.

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