Paper Title:
Liquid Phase Sintering of α-Si3N4 by Spark Plasma Sintering
  Abstract

In this study, spark plasma sintering (SPS) was applied to prepare α-Si3N4 ceramics of different densities with magnesia, silicon dioxide, alumina as the sintering aids. The sintering behavior and liquid phase sintering (LPS) mechanism were discussed and the factors influencing the density of the prepared samples were analyzed. Microstructures of sintered samples were observed and the phase compositions were analyzed. The results showed that α-Si3N4 ceramics can be sintered by SPS based on the reaction among α-Si3N4 and sintering additives which lead to the liquid phase and the density can be well controlled from 2.48 to 3.09 g/cm3 while the content of the sintering aids changes from 10% to 28.5% and sintering temperature from 1400°C to 1500°C.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
1062-1064
DOI
10.4028/www.scientific.net/KEM.336-338.1062
Citation
F. Q. Yan, F. Chen, Q. Shen, L. M. Zhang, "Liquid Phase Sintering of α-Si3N4 by Spark Plasma Sintering", Key Engineering Materials, Vols. 336-338, pp. 1062-1064, 2007
Online since
April 2007
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Price
$32.00
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