Skip to main content
Log in

β-SiC production by reacting silica gel with hydrocarbon gas

Journal of Materials Science Aims and scope Submit manuscript

Abstract

A novel synthesis process, developed for producing high purity, submicron, non-agglomerated and low cost β-SiC powders. The process is based on carbothermal reduction reaction of a novel coated precursor. The precursor is derived from a silica gel and a hydrocarbon gas and provides high contact area between reactants. This yields a better distribution of carbon within the silica gel and results in a more complete reaction and a purer product. The powders produced in this process have a low oxygen content (less than 0.8 wt.%), very fine particle size (0.1–0.3 μm), narrow particle size distribution, non-agglomerated and are low cost. The sintering tests demonstrated that these powders can be pressureless-sintered to near theoretical density at about 2100°C in an inert atmosphere. No decarburization and no acid purification process was required before sintering.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

References

  1. W. Boecker, H. Landfermann and H. Hausner, Pow. Met. Int. 11(2) (1979) 83.

    Google Scholar 

  2. H. Wu and D. W. Readey, ACerS Transactions 2 (1987) 35.

    Google Scholar 

  3. J. G. Lee, PhD dissertation, University of Utah, 1976.

  4. G. Glatzmaier and R. Koc, US Patent no. 5,324,494 (1994).

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Koc, R., Glatzmaier, G. & Sibold, J. β-SiC production by reacting silica gel with hydrocarbon gas. Journal of Materials Science 36, 995–999 (2001). https://doi.org/10.1023/A:1004888209926

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1004888209926

Keywords

Navigation