Spark Plasma Sintering (SPS) of NASICON Ceramics

Spark plasma sintering (SPS) method was used to obtain dense NASICON ceramics with a high‐electrical conductivity, which was compared with conventional solid‐state sintering. The fully dense NASICON was achieved at a relatively low‐sintering temperature of 1100°C, whereas the apparent density of the...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2004-02, Vol.87 (2), p.305-307
Main Authors: Lee, Ji-Sun, Chang, Chae-Myung, Lee, Young IL, Lee, Jong-Heun, Hong, Seong-Hyeon
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Ceramics
Chemical industry and chemicals
electrical conductivity
Electrotechnical and electronic ceramics
Exact sciences and technology
NASICON
Plasma
Sintering
spark plasma sintering
Technical ceramics
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Summary:Spark plasma sintering (SPS) method was used to obtain dense NASICON ceramics with a high‐electrical conductivity, which was compared with conventional solid‐state sintering. The fully dense NASICON was achieved at a relatively low‐sintering temperature of 1100°C, whereas the apparent density of the specimen prepared by conventional sintering was 74% of the theoretical density. The highest conductivity of 1.8 × 10−3 Scm−1 at 25°C, which is comparable to the best value reported, was achieved using the SPS process. Considering the phase, density, and microstructure, it appears that there is more room for improved conductivity by controlling the amount of monoclinic zirconia and the resistive grain‐boundary glass phase.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2004.00305.x