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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RocTool composite demo at K 2016 CompositesWorld

In partnership with Flextronics and Arburg, the RocTool new technology combines the forming of a composite sheet and injection overmolding of thermoplastic in the same process.

Siemens launches new end-to-end additive manufacturing solution CompositesWorld

Company believes this is a "world's first" solution that integrates the entire additive manufacturing process from automated performance-driven design optimization to advanced 3D printing.

A. Schulman to add new sheet molding compound production line in Europe CompositesWorld

The new line will be operational by the end of 2017.

Meggitt expands carbon brake manufacturing capacity CompositesWorld

With the expansion, Meggitt Aircraft Braking Systems moved its wheel-and-brake maintenance and repair operations from Akron, Ohio to Danville, Kentucky.

Paul Oldroyd added to Carbon Fiber conference agenda CompositesWorld

Bell Helicopter Textron's Oldroyd will explore the exploitation of carbon fiber in aerospace, particularly as it is influenced by carbon fiber use in consumer and ground transportation applications

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