Research Paper

Synthesis of Nanocrystalline Silicon Carbide Powder by Precipitaion-spray Drying

  • PAN Shun-Long ,
  • YANG Yan-Feng ,
  • ZHANG Jing-Jie ,
  • SONG Guang-Zhi
Expand
  • (Technical Institute of Physics and Chemistry, Chinese Academy of Scicences, Beijing 100080, China)

Received date: 2005-11-10

  Revised date: 2006-03-31

  Online published: 2006-11-20

Abstract

Nanocrystalline SiC powder was synthesized by carbothermal reduction of the precursor of carbon black and silica gel prepared by precipitationspray drying slurry of carbon black and water glass. The carbothermal reduction of the precursors can be completed at 1500℃ for 5h because the method provides intimate contact between the reactants. The product was characterized by XRD, BET, SEM and TEM, the influence of temperature and time on the reaction was also studied. The results show that the powder synthesized at 1500℃ for 5h has characteristics of high quality with an average crystalline size of 37nm and specific surface area of 12.4m2/g. It reveales that during carbonthermal reation, appropreately rising temperature and shortening reaction time will be favorable to obtain the reation product of SiC with high quality.

Cite this article

PAN Shun-Long , YANG Yan-Feng , ZHANG Jing-Jie , SONG Guang-Zhi . Synthesis of Nanocrystalline Silicon Carbide Powder by Precipitaion-spray Drying[J]. Journal of Inorganic Materials, 2006 , 21(6) : 1319 -1324 . DOI: 10.3724/SP.J.1077.2006.01319

References

[1] Seog I S, Kim C H. J. Mater. Sci., 1993, 28: 3277--3282.
[2] Mitchell B S, Zhang H, Maljkovic N. J. Am. Ceram. Soc., 1999, 82 (8): 2249--2251.
[3] Guo J Y, Gitzhofer F, Boulos M I. J. Mater. Sci., 1995, 30: 5589--5599.
[4] Jakubenas K, Marcus H L. J. Am. Ceram. Soc., 1995, 78 (8): 2263--2266.
[5] Koc R, Glatzmaier G, Sibold J. J. Mater. Sci., 2001, 36: 995--999.
[6] Martin H P, Muller E, Knoll Y, et al. J. Mater. Sci. Lett., 1995, 14: 620--622.
[7] Martin H P, Ecke R, Muller E. J. Euro. Ceram. Soc., 1998, 18: 1737--1742.
[8] 潘顺龙, 杨岩峰, 张敬杰, 等(PAN Shun-Liong, et al). 硅酸盐学报(Journal of the Chinese Ceramic Society), 2005, 33 (8): 980--985.
[9] Weimer W, Nilsen K J, Cochran G A, et al. AIChE J, 1993, 39: 493--503.
[10] Pujar V V, Cawley J D. J. Am. Ceram. Soc., 1995, 78 (3): 774--782.
Outlines

/