A New Technique for Coating Silicon Carbide Onto Carbon Nanotubes Using a Polycarbosilane Precursor

Multiwalled carbon nanotubes (MWCNTs) have been coated with silicon carbide (SiC) using polycarbosilane as precursor in order to improve their thermo oxidative stability. The polycarbosilane coated MWCNTs were heated to ~1300°C under an inert atmosphere to generate the SiC coating. X-ray diffraction...

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Bibliographic Details
Published inSILICON Vol. 1; no. 2; pp. 125 - 129
Main Authors Gupta, Rakesh Kumar, Mishra, Raghwesh, Mukhopadhyay, Kingsuk, Tiwari, Rajesh Kumar, Ranjan, Ashok, Saxena, Arvind Kumar
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.04.2009
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Coating
Electron microscopy
Energy dispersive X ray analysis
Environmental Chemistry
Inert atmospheres
Inorganic Chemistry
Lasers
Materials Science
Multi wall carbon nanotubes
Optical Devices
Optics
Photonics
Polymer Sciences
Precursors
Silicon carbide
Thermogravimetric analysis
X ray analysis
SiC
Polycarbosilane
MWCNTs
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Summary:Multiwalled carbon nanotubes (MWCNTs) have been coated with silicon carbide (SiC) using polycarbosilane as precursor in order to improve their thermo oxidative stability. The polycarbosilane coated MWCNTs were heated to ~1300°C under an inert atmosphere to generate the SiC coating. X-ray diffraction, energy dispersive X-ray analysis and scanning electron microscopy have confirmed the formation of SiC on the MWCNTs. The retention of the tubular structure of the MWCNTs has been confirmed by transmission electron microscopy. Thermogravimetric analysis has been performed to evaluate the thermo oxidative stabilities of coated and virgin MWCNTs. Sonication studies have shown that the mechanical strength of the MWCNTs was increased after coating with SiC.
ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-009-9016-0