Paper Titles
Preparation of In Situ Synthesized SiC Particles Reinforced Highly Porous Si3N4 Ceramics by Gel-Casting
p.898
Surface Oxidation of Carbon Fiber and its Influence on the Properties of Carbon Fiber Reinforced BN-Si3N4 Composites
p.901
Sintering Temperature Study of Hot-Pressed Y-SiAlON Ceramics
p.905
Multi-Step Sintering Method Study of HP Y-SiAlON Ceramics
p.908
Preparation of β-Sialon from Fly Ash by Carbothermal Reduction-Nitridation Reaction
p.910
Si3N4-BN-SiO2 Based Microwave-Transparent Materials
p.913
Wear Property of Superfine Grained Si2N2O-Si3N4 Composites
p.917
Preparation of SiOC Foam Ceramics Using Polysiloxane
p.920
Fabrication of MgSiN2 Powders via Combustion Synthesis Process
p.923

Preparation of β-Sialon from Fly Ash by Carbothermal Reduction-Nitridation Reaction

Article Preview

Abstract:

Single phase Sialon was synthesized successfully from fly ash by carbothermal reductionnitridation reaction in this paper. The effects of synthesizing temperature (1200°C, 1300°C, 1400°C and 1450°C) and carbon content (stoichiometric content, exceeding 10%, 50% and 100%) on the final production were studied by XRD and SEM. Synthesis mechanism of β-Sialon was also analysized. The results indicated that single phase β-Sialon with z=3 was obtained using fly ash as raw materials and carbon black of stoichiometric content as reducer by carbothermal reduction- nitridation reaction in flow nitrogen at 1450°C for 3h. Temperature and content of carbon had significant effect on the synthesis of β-Sialon.

You might also be interested in these eBooks
High-Performance Ceramics V View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Pages:

910-912

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.368-372.910

Citation:

Cite this paper

Online since:

February 2008

Authors:

Jun Tong Huang, Ming Hao Fang, Yan Gai Liu, Zhao Hui Huang

Keywords:

Carbothermal Reduction-Nitridation, Fly Ash (FA), Preparation, ß-SiAlON

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2008 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] T. Ekstrom and M. Nygren: J. Am. Ceram. Soc. Vol. 75 (1992), p.259.

Google Scholar

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

Google Scholar

[3] H.W. Ma: Industrial Minerals and Rocks (Chemistry Industry Press, Beijing, China, 2005).

Google Scholar

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

Google Scholar

[4] (2005), p.18.

Google Scholar

[5] E. Kokmeijer, C. Scholte, F. Blomer, et al.: J. Mater. Sci. Vol. 25 (1990), p.1261.

Google Scholar

[6] X.Y. Lu, D. Zhang and S.Z. Cai: Refrectories. Vol. 39.

Google Scholar

[4] (2005), p.259.

Google Scholar

[7] J.E. Gilbert and A. Mosset: Materials Research Bulletin. Vol. 33.

Google Scholar

[1] (1998), p.117.

Google Scholar

[8] A.A. Kudyba-Jansen, H.T. Hintzen and R. Metselaar: Mater. Res. Bull. Vol. 36 (2001), p.1215.

Google Scholar