Formation of Silicon Carbide Whiskers from Organic Precursors Via Sol-Gel Method

Authors

  • S. Manocha Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar, Gujarat – 388120, India
  • A. Darji Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar, Gujarat – 388120, India
  • L. M. Manocha Department of Materials Science, Sardar Patel University, Vallabh Vidyanagar, Gujarat – 388120, India

DOI:

https://doi.org/10.18321/ectj62

Abstract

Silicon Carbide (SiC) was synthesized by carbothermal reduction of silica precursor and carbon precursor. The silica precursor was obtained from tetraethoxysilane. Sucrose was used as carbon source. Tetraethoxysilane (TEOS) was hydrolyzed in acidic water (pH = 2). The molar ratio of TEOS-H2O-EtOH was taken as 1:8:2 in the sol-gel processing. Hydrolysed silica sol was polymerized with sucrose to incorporate carbon precursor into the silica network. The gel thus obtained was dried in an oven at 70 oC and at 100 oC. The solid mass obtained on drying was heat treated at 1000 °C in nitrogen atmosphere to obtain the black glass. It was characterized by FTIR, SEM and TGA. The black glass was further heated to 1500 oC in argon to yield silicon carbide. this resulted in formation of β-SiC whiskers.

References

1. Okada K, Kata H, Nakajima K, J Am Ceram Soc 77:1994, p.1691.

2. Bao X, Nangerjo M.R., Edirisinghe M.J., J Mater Sci 35:2000, p.4365.

3. Gadzira M, Gnesin G, Mykhalyk O, Andreyev O, Diamond Relat Mater 7:1998, p.1466.

4. Pascal D.G., Huu C.P., Christophe B, Estournes C, Ledoux M.J., Appl Catal 156:1997, p.131.

5. Frederis M, Behrang M, Claude C, J Catal 169:33.

6. Marc J, Ledoux M, Huu P.C., Catal Today 61:2000, p.157.

7. Nicalos K, Valeric K, Elodie B, Francosis G, Ledoux M.J., J Mater Chem 14:2004, p.1887.

8. Keller N., Pham-Huu C., Ledoux M. J. and Ehret C., Appl. Catal. A: General 187 (1999), p. 255.

9. Ledoux M. J. and Hantzer S., Pham-Huu C., Guille J. and Desaneaux M. P., J. Catal. 114 (1988), p.176.
10. Nhut J. M., Uieira R., Pesant L., Tessonnier J. P., Ehret G., Pham-Huu C. and Ledoux M. J., Catal. Today 76 (2002), p.11.

11. Jin G.Q., Guo X.Y., (2003) Micropor Mesopore Mater 60:207 doi 10:1016/SI 387-1811 (03) 00378-0.

12. Bao X, Nangerjo M.R., Edirisinghe M.J., (2000) J Mater Sci 35 (2000), p.4365.

13. Huu C. P., Bouchy C., Dintzer T., Ehret G., Estournes C., Ledoux M., Appl. Catal. A: General 180 (1999), p.385.

14. Manocha L.M., Yasuda E., Tanabe Y., Manocha S. and Vashistha D., Bull. Mater. Sci., Vol. 23 (2000), p.1.

15. Raman V., Bahl O. P., Jha N. K., Journal Of Materials Science Letters 12 (1993) p.1188.

16. Bertoluzza, A., Fagneno, C. and Morelli, M., J. Non-Crystalline Solids 48, p.117 (1982).

17. Yoshino, H., Kamiya, K. and Nasu, H., J. NonCrystalline Solids 126 (1990), p.68.

18. Babonneau, F., Bois, L., Yang, Chia-Yu, and Interrante, L.V., Chemistry of Materials 6 (1994), p.51.

19. Julbe, a., Larnot, A., Guizard, C., Cot, L., charpin, J. and Bergez, P., Mat. Res. Bull., 25 (1990) p.601.

20. Yoshino, H., Kamiya, K., and Nasu, H., J. NonCrystalline Solids 126, (1990) p.68.

21. Babonneau, F., Bois, L., Yang, Chia-Yu. And Interrante, L.V., Chemistry of Materials 6, (1994) p.51.

22. Kamiya, K., Yoko, T., Sano, T. And Nasu, H., J. Non-Crystalline Solids 119, (1990) p.14.

23. Amara, Ch.Ben Gharbi, N. and zarrouk, H., J.Sol-Gel Sci. and Tech. 2,(1994) p.193.

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Published

2011-04-22

How to Cite

Manocha, S., Darji, A., & Manocha, L. M. (2011). Formation of Silicon Carbide Whiskers from Organic Precursors Via Sol-Gel Method. Eurasian Chemico-Technological Journal, 13(1-2), 27–33. https://doi.org/10.18321/ectj62

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