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Preparation of Porous Si3N4 Based Ceramics by Combustion Synthesis

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Abstract:

This paper presents the results of combustion synthesis of porous Si3N4 based ceramics from silicon powders, with fine α-Si3N4 and BN powders as diluents, under high nitrogen pressure. The effect of addition of BN on the morphology is investigated. The results revealed that the strength decreased and the porosity increased with the addition of BN, which is strongly depended on the final morphology of the products.

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Periodical:

Key Engineering Materials (Volumes 336-338)

Pages:

1087-1089

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.1087

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Online since:

April 2007

Authors:

Wen Kui Li, Jun Huai Xiang, Bao Lin Zhang

Keywords:

Combustion Synthesis (CS), Porous Ceramics

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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