Liquid Phase Sintering （LPS） and Dielectric Constant of α-Silicon Nitride Ceramic

The spark plasma sintering （SPS） was applied to prepare α-Si3 N4 ceramics of different densities with magnesia, silicon dioxide, alumina as the sintering aids. The mechanism of liquid phase sintering （LPS） wus discussed and the factors influencing the density of the prepared samples were analyzed. T...

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Bibliographic Details
Published in:Journal of Wuhan University of Technology. Materials science edition 2006, Vol.21 (2), p.98-100
Main Author: CHEN Changlian CHEN Fei SHEN Qiang ZHANG Lianmeng YAN Faqiang
Format: Article
Language:English
Subjects:
α氮化硅陶瓷
介电常数
液相烧结
火花等离子体烧结
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Summary:The spark plasma sintering （SPS） was applied to prepare α-Si3 N4 ceramics of different densities with magnesia, silicon dioxide, alumina as the sintering aids. The mechanism of liquid phase sintering （LPS） wus discussed and the factors influencing the density of the prepared samples were analyzed. The dielectric constant of sintered samples was tested. The experimental results show that the density can be controlled from 2.48 g/ cm^3 to 3.09 g/ cm^3 while the content of the sintering aids and the sintering temperature alter and the dielectric constant is closely dependent on the density of obtained samples.
ISSN:1000-2413
1993-0437