Morphological Studies on CNT Reinforced SiC/SiOC Composites

  • L. M. Manocha Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar-388120
  • A. Basak Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar-388120
  • S. Manocha Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar-388120
  • A. Darji Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar-388120

Abstract

Carbon nanotubes (CNTs) have been grown on commercially available silicon carbide (SiC) fabric by the catalytic chemical vapour deposition (CCVD) technique. These CNT coated SiC fabrics were used to develop Silicon Carbide–Carbon Nanotube–Silicon oxy Carbide matrix composites (SiC/CNTs/SiOC) by sol gel technique. Silicon oxy Carbide refers to carbon containing silicates wherein oxygen and carbon atoms
share bonds with silicon in the amorphous network structure. In this approach, alkyl-substituted silicon
alkoxides, which are molecular precursors containing oxygen and carbon functionalities on the silicon, are
hydrolyzed and condensed in the presence of sucrose, which provides excess of carbon to bond into the
silicon alkoxide network during hydrolysis. A low-temperature (1000 °C) heat-treatment of the gel creates
a glassy silicate material whose molecular structure consists of an oxygen/carbon anionic network. The
microstructures of these hybrid materials and their composites have been studied using scanning electron
microscope (SEM), transmission electron microscope (TEM) and Raman spectroscope.

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Published
2011-04-22
How to Cite
[1]
L. Manocha, A. Basak, S. Manocha, and A. Darji, “Morphological Studies on CNT Reinforced SiC/SiOC Composites”, Eurasian Chem.-Technol. J., vol. 13, no. 1-2, pp. 41-47, Apr. 2011.
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Articles