Effect of Inert Gas Flow Nature on SiC Microtube Synthesis

Article Preview

Abstract:

Silicon carbide (SiC) microtubes with villus-like morphology have been successfully fabricated through a reaction between carbon fiber and SiO gas via the pack cementation process. The effect of gas flow nature (argon and/or hydrogen) on silicon carbide microtube synthesis has been studied. The morphology of the microtubes and the production yield are greatly influenced by the nature of gas flow. Mixed ratio of argon to hydrogen gas has a strong influence on the thickness of the microtubes.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

220-225

Citation:

Online since:

June 2005

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] N. Keller, C. Pham-Huu, S. Roy, M.J. Ledoux, C. Estournès and J.L. Guille, Influence of the preparation conditions on the synthesis of high surface area SiC for use as a heterogeneous catalyst support, J Mater Sci 34 13 (1999), pp.3189-3202.

DOI: 10.1023/a:1004681806843

Google Scholar

[2] Keller N, Pham-Huu C, Ledoux MJ, Estournes C, Ehert G, Preparation and characterization of SiC microtubes, Appl Catal A: Gen 1999; 187(2): 255-268.

DOI: 10.1016/s0926-860x(99)00223-9

Google Scholar

[3] Stern KH. Metallurgical and Ceramic Protective Coatings (1st edn). Chapman & Hall: London, 1996; 1-3, 194-197, 74-75, 152-153, 169.

Google Scholar

[4] Moene R, Makkee M, Moulijin JA, High surface area silicon carbide as catalyst support characterization and stability, Appl Catal A: Gen 1998; 167(2): 321-30.

DOI: 10.1016/s0926-860x(97)00326-8

Google Scholar

[5] M. Saito, S. Nagashima and A. Kato, Crystal growth of SiC whisker from the SiO(g)-CO system, J Mater Sci Letters, 11, 373-376 (1992).

DOI: 10.1007/bf00728713

Google Scholar

[6] G. A. Bootsma, W. F. Knippenberg and G. Verspui, Growth of SiC whiskers in the system SiO2-C-H2 nucleated by iron, J Crystal Growth, 11, 297-309 (1971).

DOI: 10.1016/0022-0248(71)90100-x

Google Scholar