Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-26T03:45:38.499Z Has data issue: false hasContentIssue false
  • English
  • Français

Synthesis of silicon carbide powders from fumed silica powder and phenolic resin

Published online by Cambridge University Press:  01 May 2006

Satoru Ishihara ,
Hidehiko Tanaka  and
Toshiyuki Nishimura
Satoru Ishihara*
Affiliation:
National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
Hidehiko Tanaka
Affiliation:
National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
Toshiyuki Nishimura
Affiliation:
National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
*
a) Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

Silicon carbide powders were synthesized by application of sol-gel processing. Fumed silica powder was used as the starting material for the silicon source, and phenolic resin was used for the carbon source. The effects of mixing ratio and difference between hydrophilic and hydrophobic types of fumed silica powders were investigated. The stirred mixtures of fumed silica powders and phenolic resin became apparent sol states owing to homogeneous distribution. SiC powders were formed derived from both the types of fumed silica powders after the gelation and pyrolysis up to 1800 °C. The hydrophilic silica powder was effective to synthesize more homogeneous SiC powders than the hydrophobic type. Single-phase SiC was obtained in the C/Si (molar ratio after pyrolysis at 1000 °C) range between 1.0 and 2.5, while free carbon was contained in the obtained powders of C/Si > 2.5. In contrast, formation of SiC was insufficient, and SiO2 was retained at ratios of C/Si < 1.0.

Keywords

CeramicChemical synthesisPyrolysis
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 5 , May 2006 , pp. 1167 - 1174
Copyright
Copyright © Materials Research Society 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Wei, G.C., Kennedy, C.R., Harris, L.A.: Synthesis of sinterable SiC powders by carbothermic reaction of gel-derived precursors and pyrolysis of polycarbosilane. Am. Ceram. Soc. Bull. 63, 1054 (1984).Google Scholar
2.Tanaka, H., Kurachi, Y.: Synthesis of β–SiC powder from organic precursor and its sinterablity. Ceram. Int. 14, 109 (1988).CrossRefGoogle Scholar
3.Ono, K., Kurachi, Y.: Kinetic studies on β–SiC formation from homogeneous precursors. J. Mater. Sci. 26, 388 (1991).CrossRefGoogle Scholar
4.Schneider, H., Jaeger, C., Mosset, A., Tanaka, H., Schmuecker, M.: Structural evolution of non-crystalline SiC precursors prepared from tetra methoxysilane (TMOS) and phenol resin. J. Euro. Ceram. Soc. 15, 675 (1995).CrossRefGoogle Scholar
5.Narisawa, M., Okabe, Y., Okamura, K., Kurachi, Y.: Effect of heat treatment on crystallite size and grain morphology of silicon carbide synthesized from carbon-silica hybrid precursors. J. Ceram. Soc. Jpn. 107, 285 (1999).CrossRefGoogle Scholar
6.Narisawa, M., Yamane, K., Okabe, Y., Okamura, K., Kurachi, Y.: Carbon-silica alloy material as silicon carbide precursor prepared from phenol resin and ethyl silicate. J. Mater. Res. 14, 4587 (1999).CrossRefGoogle Scholar
7.White, D.A., Oleff, S.M., Boyer, R.D., Budinger, P.A., Fox, J.R.: Preparation of silicon carbide from organosilicon gels: I. Synthesis and characterization of precursor gels. Adv. Ceram. Mater. 2, 45 (1987).CrossRefGoogle Scholar
8.White, D.A., Oleff, S.M., Fox, J.R.: Preparation of silicon carbide from organosilicon gels: II. Gel pyrolysis and SiC characterization. Adv. Ceram. Mater. 2, 53 (1987).CrossRefGoogle Scholar
9.Hatakeyama, F., Kanzaki, S.: Synthesis of monodispersed spherical β-silicon carbide powders by a sol-gel process. J. Am. Ceram. Soc. 73, 2107 (1990).CrossRefGoogle Scholar
10.Seog, I-S., Kim, C.H.: Preparation of monodispersed spherical silicon carbide by sol-gel method. J. Mater. Sci. 28, 3277 (1993).CrossRefGoogle Scholar
11.Martin, H-P., Müller, E., Knoll, Y., Strienitz, R., Schuster, G.: Silicon carbide derived from silica sol and sugar. J. Mater. Sci. Let. 14, 620 (1995).CrossRefGoogle Scholar
12.Koc, R., Cattamanchi, S.V.: Synthesis of beta silicon carbide powders using carbon coated fumed silica. J. Mater. Sci. 33, 2537 (1998).CrossRefGoogle Scholar
13.Martin, H-P., Ecke, R., Muller, E.: Synthesis of nanocrystalline silicon carbide powder by carbothermal reduction. J. Eur. Ceram. Soc. 18, 1737 (1998).CrossRefGoogle Scholar
14.Riedel, R., Gabriel, A.O.: Synthesis of polycrystalline silicon carbide by a liquid-phase process. Adv. Mater. 11, 207 (1999).3.0.CO;2-B>CrossRefGoogle Scholar
15.Gao, J., Xiao, H., Du, H.: Sol-gel synthesis and pressureless sintering of nanophase silicon carbide. J. Mat. Sci. Let. 21, 1835 (2002).CrossRefGoogle Scholar
16.Lin, Y-J., Tsang, C-P.: The effects of starting precursors on the carbothermal synthesis of SiC powders. Ceram. Int. 29, 69 (2003).CrossRefGoogle Scholar
17. Technical information, Nippon Aerosil Co. Available at: http://www.degussa.com/en/home/technology_specialties/aerosil_silanes.html.Google Scholar
18.Seo, W-S., Koumoto, K.: Stacking faults in β–SiC formed during carbothermal reduction of SiO2. J. Am. Ceram. Soc. 79, 1777 (1996).CrossRefGoogle Scholar
19.Tateyama, H., Noma, H., Adachi, Y., Komatsu, M.: Prediction of stacking faults in β-silicon carbide: X-ray and NMR studies. Chem. Mater. 9, 766 (1997).CrossRefGoogle Scholar
20.Klinger, N., Strauss, E.L., Komarek, A.K.: Reactions between silica and graphite. J. Am. Ceram. Soc. 49, 369 (1966).CrossRefGoogle Scholar