Synthesis of Rod-Like α-SiAlON by Carbothermal Reduction-Nitridation

Abstract:

Article Preview

Rod-like α-sialon was synthesized successfully using pure SiO2 and AlN as the starting materials, carbon black as reductant, CaF2 and Y2O3 as addition agent by carbothermal reduction-nitridation. The effects of reaction temperature (1450°C, 1500°C, 1600°C and 1700°C) and additive (Li2CO3, CaF2, Y2O3 and Y2O3+CaF2) on phases and microstructure of the final products were studied by XRD and SEM. The results showed that α-sialon was synthesized by carbothermal reduction-nitridation at 1700°C for 3 hours. The morphology of the synthesized α-sialon was rod-like.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

888-890

Citation:

X. F. Leng et al., "Synthesis of Rod-Like α-SiAlON by Carbothermal Reduction-Nitridation", Key Engineering Materials, Vols. 368-372, pp. 888-890, 2008

Online since:

February 2008

Export:

Price:

$38.00

[1] S. Hampshire, H.K. Park, D.P. Thompson, et al.: Nature. vol. 274 (1978), P. 880.

[2] I.W. Chen, A. Rosenflanz: Nature. vol. 389 (1997), p.701.

[3] Z.B. Yu, D.P. Thompson and A.R. Bhatti: J. Eur. Ceram. Soc. Vol. 20 (2000), p.1815.

[4] J.G. Lee and I.B. Cutler: J. Am Ceram. Soc. Bull. Vol. 58 (1979), p.869.

[5] H.W. Ma: Industrial Minerals and Rocks (chemistry industry publishing house, Beijing, China, 2005).

[6] X.Y. Lu, D. Zhang and X.Y. Zhu: China Non-Metallic Mining Industry Herald. Vol. 48.

[4] (2005), p.18.