Effect of Three Catalysts on Synthesis of Silicon Carbide Whiskers with Silica Fume

Abstract:

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Silicon carbide whiskers were prepared by carbothermal reduction. Materials are silica fume and carbon black, Si, Fe2O3, Si-Fe as catalyst, the phase composition and microstructure of compound products were investigated by XRD and SEM, effect of synthesized temperature, kind of catalysts, amount of catalyst were discussed. The results showed that: Silicon carbide whiskers were synthesized by silica fume and black carbon, add catalyst, synthesis temperature is 1550°C. Synthesis effect of silicon carbide whiskers with Si is better than Si-Fe and Fe2O3. Adding amount of Si is 2%, synthesized rate of silicon carbide whiskers is high, it is straight, length is 10~15μm, diameter is 0.1~0.3μm.

Info:

Periodical:

Advanced Materials Research (Volumes 284-286)

Main Theme:

Edited by:

Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu

Pages:

496-499

DOI:

10.4028/www.scientific.net/AMR.284-286.496

Citation:

X. W. Li et al., "Effect of Three Catalysts on Synthesis of Silicon Carbide Whiskers with Silica Fume", Advanced Materials Research, Vols. 284-286, pp. 496-499, 2011

Online since:

July 2011

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Price:

$35.00

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