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Large Scale Production of Nanoparticles by Laser Pyrolysis

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Abstract:

Laser pyrolysis is a very suitable gas-phase process for the synthesis of a wide range of nanoparticles at laboratory scale. The principle of the method is based on the decomposition of gaseous or liquid reactants by a high power CO2 laser followed by a quenching effect. The literature reports the possibility to produce carbides, nitrides, oxides, metals and composites nanoparticles by this process. This paper reports a study of the effect of the laser intensity (using an innovative optical system) and of the gas flow rates on the characteristics (size and structure) of silicon carbide (SiC) nanoparticles produced at pilot scale (up to 1.13 kg/h) by using a mixture of silane (SiH4) and acetylene (C2H2). It has been shown that the decrease of the gas flow rate favors the increase of the mean grain size of the particles and that the increase of the laser intensity seems to provoke an increase of the mean crystal size and/or crystal number.

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Periodical:

Materials Science Forum (Volumes 534-536)

Pages:

85-88

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.534-536.85

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Online since:

January 2007

Authors:

Adrien Reau, Benoit Guizard, Cyrille Mengeot, Loic Boulanger, François Ténégal

Keywords:

Laser Pyrolysis, Nanoparticle, Pilot Unit, Silicon Carbide (SiC)

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] W. R Cannon, S. C Danforth, J. S Haggerty, R. A Marra, J. of the Am. Ceram. Soc. Vol. 65 (1982), p.330.

Google Scholar

[2] M. Cauchetier, O. Croix, M. Luce, M.I. Baraton, T. Merle, P. Quintard, J. of the Euro. Ceram. Soc. Vol. 8 (1991), p.215.

Google Scholar

[3] J.D. Casey, J.S. Haggerty, J. of Mater. Sci. Vol. 22 (1987), p.4307.

Google Scholar

[4] M. Cauchetier, X. Armand, N. Herlin, M. Mayne, S. Fusil, E. Lefevre, J. of Mater. Sci. Vol. 34 (1999), p.5257.

DOI: 10.1023/a:1004776300121

Google Scholar

[5] M. Ehbrecht, M. Faerber, F. Rohmund, V.V. Smirnov, O. Stelmach, F. Huisken, Chem. Phys. Lett. Vol. 214 (1995), p.34.

Google Scholar

[6] X.X. Bi, P.C. Englud, Nanophase and Nanocomposite Materials, Symp. Mater. Res. Soc., Pittsburgh, PA, USA (1993), p.141.

Google Scholar

[7] N. Herlin, J. Vicens, F. Ténégal, C. Dufour, R. Rizk, Proceedings of the french conference Matériaux 2002, Tours (2002).

Google Scholar

[8] F. Ténégal, S. Petcu, N. Herlin, X. Armand, M. Mayne, C. Reynaud, Chem. Phys. Lett. Vol. 335 (2001), p.155.

Google Scholar

[9] M. Cauchetier, E. Musset, M. Luce, N. Herlin, X. Armand, M. Mayne in Nanostructured silicon-based powders and composites, edited by C. Sénémaud and A.P. Legrand, chapter 1, Taylor & Francis publishers (2000).

DOI: 10.1201/9780203222294.ch2

Google Scholar