The progressive formation of carbon/carbon (C/C) composites via a catalytic method by covering carbon fibers with a carbon matrix using C2H4/H-2 feedstock is investigated by SEM, TEM, and AFM microscopies and by XRD analysis. In the initial stages, intersecting nanofilaments of about 40-50 nm diameter are formed under relatively mild conditions at the surface of smooth carbon fibers with similar to 6-8 mu m diameter supporting Ni and Fe nanoparticles. A "porous nanotissue" which interconnects the original fibers is initially generated. At later stages a more compact CIC composite material is formed on a laboratory scale, which shows a high graphitization degree.

Connecting carbon fibers by means of catalytically grown nanofilaments: Formation of carbon-carbon composites

CESANO, Federico;SCARANO, Domenica;ZECCHINA, Adriano
2005-01-01

Abstract

The progressive formation of carbon/carbon (C/C) composites via a catalytic method by covering carbon fibers with a carbon matrix using C2H4/H-2 feedstock is investigated by SEM, TEM, and AFM microscopies and by XRD analysis. In the initial stages, intersecting nanofilaments of about 40-50 nm diameter are formed under relatively mild conditions at the surface of smooth carbon fibers with similar to 6-8 mu m diameter supporting Ni and Fe nanoparticles. A "porous nanotissue" which interconnects the original fibers is initially generated. At later stages a more compact CIC composite material is formed on a laboratory scale, which shows a high graphitization degree.
2005
17
5119
5123
http://pubs.acs.org/cgi-bin/abstract.cgi/cmatex/2005/17/i20/abs/cm050427a.html
nanotubes; nanofibers; nickel; nanostructures; catalysts
F. CESANO; S. BERTARIONE; D. SCARANO; A. ZECCHINA
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/10993
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