Thermal Stability of Zirconia-coated Multiwalled Carbon Nanotubes

  • R. Manivannan Advanced Systems Laboratory, Hyderabad
  • Alex Daniel Advanced Systems Laboratory, Hyderabad
  • I. Srikanth Advanced Systems Laboratory, Hyderabad
  • Anil Kumar Advanced Systems Laboratory, Hyderabad
  • Rajdeep Sarkar Defence Metallurgical Research Laboratory, Hyderabad
  • P. Ghoshal Defence Metallurgical Research Laboratory, Hyderabad
  • Rohini Devi Advanced Systems Laboratory, Hyderabad
DOI: https://doi.org/10.14429/dsj.60.362
Keywords: Carbon nanotubes, MWCNTs, multiwalled carbon nanotubes, sol-gel, zirconia coating, thermal stability

Abstract

Sol-gel method has been used to coat multiwalled carbon nanotubes (MWCNTs) with zirconia at room temperature and the coated tubes were sintered at high temperature. The samples were characterised by Raman spectroscopy, x-ray diffraction, environmental scanning electron microscope, transmission electron microscopy, and energy-dispersive x-ray analyses. The performance of the coated-MWCNTs was investigated as a function of temperature. The TGA studies indicated that sintering of coated-MWCNTs has improved its oxidation resistance and this improvement is related to the proper selection of sintering temperature.

Defence Science Journal, 2010, 60(3), pp.337-342, DOI:http://dx.doi.org/10.14429/dsj.60.362

Author Biographies

R. Manivannan, Advanced Systems Laboratory, Hyderabad
Scientist, Advanced Systems Laboratory (ASL), Hyderabad. His areas of interest include: Development of high temperature
ceramic radome, ultrahigh temperature ceramics, and sol-gel coatings.
Alex Daniel, Advanced Systems Laboratory, Hyderabad
Scientist, ASL, Hyderabad. His areas of interest include: Synthesis of CNTs, their composites for structural applications, and ceramics for high temperature erosion-resistant and electromagnetic applications.
I. Srikanth, Advanced Systems Laboratory, Hyderabad
Scientist, ASL, Hyderabad. His areas of interest include: Processing of CNT composites for structural applications, and ablationresistant composites.
Anil Kumar, Advanced Systems Laboratory, Hyderabad
Scientist and Head, Ceramic Matrix Composites Division, ASL, Hyderabad. His areas of interest include: High temperature
ceramics, and nanocomposites.
Rajdeep Sarkar, Defence Metallurgical Research Laboratory, Hyderabad
Scientist, Electron Microscopy Group, Defence Metallurgical Research Laboratory (DMRL), Hyderabad. His fields of specialisations are: Characterisation of nanomaterials and Ti alloys using scanning electron microscope, environmental scanning electron microscope, dual-beam SEM, transmission electron microscope, high resolution TEM, in-situ nanoindentation in TEM.
P. Ghoshal, Defence Metallurgical Research Laboratory, Hyderabad
Scientist, Electron Microscopy Group, DMRL, Hyderabad. His fields of specialisations are: Nanomaterials characterisation, defects/
faults characterisation, intermetallic compounds, structure determination, electron microscopy.
Rohini Devi, Advanced Systems Laboratory, Hyderabad
Outstanding Scientist and Associate Director, ASL, Hyderabad. Her areas of interest include: Carbon-carbon composites, high temperature ceramics, elastomers, and nanocomposites.
Published
2010-04-21
How to Cite
Manivannan, R., Daniel, A., Srikanth, I., Kumar, A., Sarkar, R., Ghoshal, P., & Devi, R. (2010). Thermal Stability of Zirconia-coated Multiwalled Carbon Nanotubes. Defence Science Journal, 60(3), 337-342. https://doi.org/10.14429/dsj.60.362
Issue
Vol 60 No 3
Section
Review Papers
Copyright (c) 2016 Defence Science Journal

 Where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

 

Most read articles by the same author(s)