Results 331 to 340 of about 352,140 (385)

Heterogeneities in carbon fibers

Carbon, 1975
Abstract Acrylic fibers, stabilized acrylic fibers, and graphite fibers have been selectively etched by ion bombardment. After ion etching, the fibers are characterized by structures oriented transverse to the fiber axis with an average spacing ranging from 500 to 3000 A.
Donald R. Uhlmann, S. B. Warner, L.H. Peebles   +2 more
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Lyocell fibers as the precursor of carbon fibers

Journal of Applied Polymer Science, 2003
AbstractIn this work, Lyocell fibers, used as carbon fiber precursors, were investigated. Lyocell fibers used for the carbon precursors and the carbon fibers themselves were produced in our laboratory. The mechanical properties morphology and structure of the precursors and the obtained carbon fibers were studied and compared to those of rayon.
Huili Shao, Xuechao Hu, Shunjin Peng
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Coating of Carbon Fibers—The Strength of the Fibers

Journal of the American Ceramic Society, 1995
The 6k carbon fiber Torayca T800H was coated with pyrolytic carbon by a CVD process. Fiber bundles were tested and evaluated. By this procedure, the whole distribution of the failure probability with respect to the fiber strength is obtained in a single experiment.
Thomas Helmer, Herwig Peterlik, K. Kromp
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Tension of carbonization for carbon fiber

Polymer Engineering & Science, 1994
AbstractThe mechanical properties of carbon fiber, especially tensile modulus, are closely related to the orientation of crystals. Hence, the stretching of carbon fiber during carbonization is of importance. In this study, the tension arm between the carbonization furnaces was used to stretch carbon fiber.
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Fibers of Carbon Nanotubes

MRS Proceedings, 2001
AbstractWe briefly review some methods recently proposed to make films and fibers of preferentially oriented carbon nanotubes. We discuss in more detail a simple spinning process which consists in dispersing the nanotubes in a surfactant solution, re-condensing the nanotubes in the flow of a coagulating polymer solution to form a nanotube mesh, and ...
Brigitte Vigolo, Marcel Lucas, Pascale Launois, Stéphane Badaire, Patrick Bernier, Philippe Poulin   +5 more
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Pitch based carbon fiber

TANSO, 2010
Pitch-based carbon fibers, using pitches as raw materials, can have various characteristics derived from the properties of the original pitch and production method of the fibers. This chapter explains the types, manufacturing method, and also characteristics and structural features of the pitch-based carbon fibers, emphasizing the very high elastic ...
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Boron Fiber to Carbon Fiber

2016
This chapter reviews the author’s diversion from working with boron fiber composites to carbon fiber composites and the resulting establishment of the NASA-Virginia Tech Composites Program. Developments in test methods and free edge effects for carbon fiber composites are discussed.
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Electrochemistry at carbon fibers

Analytica Chimica Acta, 1981
Carbon fibers are proposed as a support electrode for a mercury film electrode. The response of these electrodes is evaluated for use in differential pulse anodic stripping voltammetry. The mercury film is deposited in situ in aqueous solution and used to quantify cadmium in solutions of cadmium salts and organo cadmium compounds in the 1–10 μg l-1 ...
Michael R. Cushman, B.Gene Bennett, C.William Anderson   +2 more
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Carbon fibers

2017
Carbon fiber (CF) is increasingly attracting the interest of composites industry for future applications in automotive, wind, and transportation. The reason of this interest is mainly based on CF's unique properties. They are strong and durable in addition to light in weight. All of these cannot be replaced by a single fiber type. In this chapter, each
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