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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TenCate provides compression molded parts to Bell 525 Relentless helicopter program CompositesWorld

Bell Helicopter recently announced a successful first flight of the Bell 525 Relentless.

SGL Group wins funds for thermoplastic composites development CompositesWorld

With almost €1 million in government funding, €2.9 million has been allocated by SGL Group for the development of a new type of customized carbon fiber for thermoplastic applications.

High-tensile modulus carbon fiber for aero, auto composites CompositesWorld

Toho Tenax has announced the launch of TENAXR XMS32, a new grade of carbon fiber that provides high intensity and high-tensile modulus for aircraft and automotive applications.

Port Angeles Composite Recycling Technology Center wins federal grant CompositesWorld

The $2 million from the US Department of Commerce will retrofit a building in Port Angeles, WA, US, to house the industrial and training facilities for the Composite Recycling Technology Center (CRTC).

Resins for the Fast Zone CompositesWorld

An automotive supplier must have the ability to produce a composite part in a minute, or at least in minutes — not hours or days, the norm for composites in most other industries. Meeting that part-per-minutes goal is a huge hurdle that a few composite fabricators have cleared, and many more are involved in development efforts, with OEM or Tier partners. CompositesWorld reviews how resin suppliers have evolved their products for this critical market.

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