Paper Title:
Synthesis of SiC Nano-Powders by Solid-Vapor Reaction
  Abstract

Silicon carbide (SiC) nano-powders are successfully synthesized by a reaction between carbon nano-powders (carbon black) and SiO gas at 1300°C for 9 hrs in dynamic argon atmosphere (flow rate; 400 cm3 min-1), using the solid-vapor reaction method. The particle size of synthesized SiC nano-powders is below 40 nm and the shape is uniform. Unexpectedly, SiC nano-fibers are also coexisted in the SiC nano-powders. The quantitative and qualitative properties of the SiC nanopowders and nano-fibers are analyzed by scanning electron microscopy (SEM), transmission electron microscope (TEM), and X-ray diffraction (XRD). Carbon residuals removed by heating over 700°C in air are estimated by thermogravimetry analysis (TGA). It is found that the SiC nanopowders are easily produced by direct synthesis via the solid-vapor reaction method. The morphological characteristics of the resulting SiC nano-powders are dependent upon the morphology of carbon black used as precursor.

  Info
Periodical
Key Engineering Materials (Volumes 317-318)
Edited by
T. Ohji, T. Sekino and K. Niihara
Pages
211-214
DOI
10.4028/www.scientific.net/KEM.317-318.211
Citation
S. S. Lee, J. W. Kim, Y. G. Jung, J. H. Lee, J. H. Yoon, C. Y. Jo, "Synthesis of SiC Nano-Powders by Solid-Vapor Reaction", Key Engineering Materials, Vols. 317-318, pp. 211-214, 2006
Online since
August 2006
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$32.00
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