The Effects of Nitrogen Purity and Pressure on Combustion Synthesis of α-Si3N4 Powders

Abstract:

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α-Si3N4 powders were fabricated through combustion synthesis (CS) process, and the effects of nitrogen purity and pressure on the combustion synthesis of α-Si3N4 specimen with large dimensions were investigated. It is shown that there exists respective nitrogen pressure limits for the initiation and the propagation of the self-sustained combustion. Moreover, it is found that there is an optimum nitrogen pressure for synthesizing tailored α-Si3N4 powders while other parameters were kept constant.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

1631-1634

DOI:

10.4028/www.scientific.net/MSF.475-479.1631

Citation:

W. P. Shen et al., "The Effects of Nitrogen Purity and Pressure on Combustion Synthesis of α-Si3N4 Powders", Materials Science Forum, Vols. 475-479, pp. 1631-1634, 2005

Online since:

January 2005

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$35.00

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