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Proceedings Paper

Iron-carbon nanocomposite obtained by laser-induced gas-phase reactions
Author(s): Florian V. Dumitrache; Ion G. Morjan; Rodica Alexandrescu; B. Rand; Victor Ciupina; G. Prodan; Ion N. Voicu; Ioan C. Sandu; I. Soare; M. Ploscaru; C. Fleaca; R. Brydson; Eugen Vasile
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Paper Abstract

Iron-carbon composite nanopowders have been synthesized by the CO2 laser pyrolysis of gas-phase reactants. The experimental device allows for a very low reaction time and a rapid freezing that creates nanoscale-condensed particles. Iron pentacarbonyl and ethylene-acetylene mixtures were used as iron and carbon precursors. In a two-steps experiment, the reaction products may present themselves as iron-based nanoparticles dispersed in a carbon matrix. By a careful control of experimental parameters and radiation geometries we demonstrate the feasibility of an efficient and well-controlled, single-step technique for the production of iron-based nano-cores embedded in carbon layers. Highly dispersed nanoparticles, narrow size distributions and particles with about 4.5 - 6 nm mean diameters were obtained. Electron microscopy and Raman spectroscopy were used in order to analyze the structure and composition of the obtained nanopowders as well as their Soxhlet residue.

Paper Details

Date Published: 17 October 2003
PDF: 9 pages
Proc. SPIE 4977, Photon Processing in Microelectronics and Photonics II, (17 October 2003); doi: 10.1117/12.501664
Show Author Affiliations
Florian V. Dumitrache, National Institute for Lasers, Plasma and Radiation Physics (Romania)
Ion G. Morjan, National Institute for Lasers, Plasma and Radiation Physics (Romania)
Rodica Alexandrescu, National Institute for Lasers, Plasma and Radiation Physics (Romania)
B. Rand, Univ. of Leeds (United Kingdom)
Victor Ciupina, Univ. Ovidius Constanta (Romania)
G. Prodan, Univ. Ovidius Constanta (Romania)
Ion N. Voicu, National Institute for Lasers, Plasma and Radiation Physics (Romania)
Ioan C. Sandu, National Institute for Lasers, Plasma and Radiation Physics (Romania)
I. Soare, National Institute for Lasers, Plasma and Radiation Physics (Romania)
M. Ploscaru, National Institute for Lasers, Plasma and Radiation Physics (Romania)
C. Fleaca, National Institute for Lasers, Plasma and Radiation Physics (Romania)
R. Brydson, Univ. of Leeds (United Kingdom)
Eugen Vasile, Metallurgical Enterprise for Aviation (Romania)


Published in SPIE Proceedings Vol. 4977:
Photon Processing in Microelectronics and Photonics II
Alberto Piqué; David B. Geohegan; Friedrich G. Bachmann; Koji Sugioka; Frank Träger; Jan J. Dubowski; Peter R. Herman; Willem Hoving; Kouichi Murakami; Kunihiko Washio; Jim Fieret, Editor(s)

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