Abstract:In this work the influence of sintering conditions on structure and mechanical properties of Si3N4 ceramics was investigated. Nearly full dense β-Si 3 N 4 ceramics with excellent mechanical properties and interlock microstructure of elongated grains was fabricated using Al 2 O 3 and yttria-stabilized zirconia (YSZ with 3 mol% Y 2 O 3) as sintering additives by spark plasma sintering (SPS) at relatively low temperature of 1600°C for 15 min. X-ray diffraction analysis shows that the SPSed sample is pure β-Si 3 N… Show more
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