Towards High Temperature Applications of Carbon nanotubes (CNTs) [II]: Structural characterizations of CNTs reinforced Silica nanocomposite

Yusuf Tijjani

Abstract


Functionalized carbon nanotubes/silica refractory ceramic nanocomposites (FCNTs/silica) were consolidated by pressureless sintering via conventional powder processing technique (CPPT). Ultra High-resolution scanning electron microscope with Electron diffraction X-ray spectroscopy (FESEM/EDX) and Raman spectra of 0, 1 and 4 wt. % FCNTs-silica nanocomposites, searching for CNTs after pressureless sintering process are presented. Also shown, are Field Emission Transmission Electron Microscope (FE-TEM) micrograph and typical morphology of Vickers’ indented surface for the attempted micro-hardness testing. The CNTs have structurally survived the high temperature pressure less sintering. Furthermore, the surface contents some pores; this might be the reason for the obtained low density and high porosity of the nanocomposite. The Hardness and fracture toughness could not be determined by Vickers’ indentation technique due to the porous nature of the FCNTs/silica surfaces and the absence of classical radial cracks.


Full Text:

PDF

References


Anstis, G. R., Chantikul, P., Lawn, B. R., and Marshall, D. B. (1981). A critical evaluation of indentation techniques for measuring fracture toughness: I, Direct crack measurements. Journal of the American Ceramic Society, 64 (9), 533-538.

Bai, T. and Xie, T. (2017). Fabrication and mechanical properties of WC-Al2O3 cemented carbide reinforced by CNTs. Materials Chemistry and Physics, 201, 113-119.

Boccaccini, A. R., Acevedo, D. R., Brusatin, G., & Colombo, P. (2005). Borosilicate glass matrix composites containing multi-wall carbon nanotubes. Journal of the European Ceramic Society, 25(9), 1515-1523.

Bokobza, L. and Zhang, J. (2012). Raman spectroscopic characterization of multiwall carbon nanotubes and of composites. Express Polymer Letters, 6(7).

Brunk, F. (2000). Silica bricks for modern coke oven batteries. Coke Making International, 12 (2), 37-40.

Cha, S. I., Kim, K. T., Lee, K. H., Mo, C. B., & Hong, S. H. (2005). Strengthening and toughening of carbon nanotube reinforced alumina nanocomposite fabricated by molecular level mixing process. Scripta Materialia, 53(7), 793-797.

Costa, S. and Borowiak-Palen, E. (2009). Raman study on doped multiwalled carbon nanotubes. Acta Physica Polonica-Series A General Physics, 116(1), 32.

Estili, M., and Sakka, Y. (2014). Recent advances in understanding the reinforcing ability and mechanism of carbon nanotubes in ceramic matrix composites. Science and Technology of Advanced Materials, 15 (6), 064902.

Jiang, L. and Gao, L. (2008). Densified multiwalled carbon nanotubes–titanium nitride composites with enhanced thermal properties. Ceramics International, 34, 231-235.

Li, J. and Liu, H. (2015). Preparation and Mechanical Properties of Carbon Nanotubes Reinforced Al2O3/TiC Composites. In International Conference on Materials, Environmental and Biological Engineering (MEBE 2015), Published by Atlantis Press, pp.(959–962).

Murphy, H., P. Papakonstantinou, and Okpalugo, T.T. (2006). Raman study of multiwalled carbon nanotubes functionalized with oxygen groups. Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, 24(2) 715-720.

Norizan, M. N., Moklis, M. H., Demon, S. Z. N., Halim, N. A., Samsuri, A., Mohamad, I. S., ... & Abdullah, N. (2020). Carbon nanotubes: Functionalisation and their application in chemical sensors. RSC advances, 10(71), 43704-43732.

Quinn, G. D., and Bradt, R. C. (2007). On the Vickers indentation fracture toughness test. Journal of the American Ceramic Society, 90 (3), 673-680.

Subhani, T., Shaffer, M. S. P., and Boccaccini, A. R. (2013). Carbon Nanotube (CNT) Reinforced Glass and Glass-Ceramic Matrix Composites. In R. Banerjee & I. Manna (Eds.), Ceramic Nanocomposites (pp. 208–256). Cambridge UK: Woodhead Publishing Limited.

TIJJANI, Y., YASIN, F. M., ISMAIL, M. H. S., and ARIFF, A. H. M. (2018). Manufacturing and mechanical characterization of multiwalled carbon nanotubes/quartz nanocomposite. Journal of the Ceramic Society of Japan, 126 (12), 984-991.

Tijjani, Y., Yasin, F. M., Ismail, M. H. S., & Hanim, M. A. (2019). Effect of Carbon nanotubes addition on the foundry physical properties of Silica refractory nanocomposite: PART A. In IOP Conference Series: Materials Science and Engineering (Vol. 469, No. 1, p. 012022). IOP Publishing.

Tijjani, Y., and Nasir, M. M. (2019). Microstructural phase characterization of multiwalled carbon nanotubes/quartzite nanocomposite. ATBU, JOSTE, 7 (2), 305-311.

Ye, F., Liu, L., Wang, Y., Zhou, Y., Peng, B., & Meng, Q. (2006). Preparation and mechanical properties of carbon nanotube reinforced barium aluminosilicate glass–ceramic composites. Scripta materialia, 55(10), 911-914.certificate examination. International Journal of Scientific and Research Publications, Volume 4, Issue 9, September 2014 1 ISSN 2250-3153.www.ijsrp.org accessed 12/5/2021. At 10:00am


Refbacks

  • There are currently no refbacks.