Nano-Grained Microstructure Design of Silicon Carbide Ceramics by SPS Process

Junichi Hojo; Hiroyuki Matsuura; Mikinori Hotta

doi:10.4028/www.scientific.net/KEM.403.177

Paper Titles

Gelcasting of Carbide Ceramics
p.163

Processing of High Performance Silicon Carbide
p.165

New Theory of Transformation Induced Grain Growth in Porous SiC
p.169

Evaluation of Microstructure of High-Strength Reaction-Sintered Silicon Carbide
p.173

Nano-Grained Microstructure Design of Silicon Carbide Ceramics by SPS Process
p.177

Macro- and Micro-Scale Thermal Conductivities of SiC Single Crystal and Ceramic
p.179

Influence of Additives on Mechanical Properties in Liquid-Phase Sintered Silicon Carbide Ceramics
p.185

Microstructural and Mechanical Properties of Ti₃SiC₂ Composites
p.189

Effect of HfO₂ Coating Films on Oxidation Resistance of SiC Ceramics
p.193

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Nano-Grained Microstructure Design of Silicon Carbide Ceramics by SPS Process

Abstract:

SiC ceramics were fabricated from submicron- and nano-sized starting powders with Y2O3 and AlN additives by SPS process. The SPS process and the use of AlN additive were found to be effective for achieving the nano-grained microstructure with retarded grain growth. The nanoporous SiC ceramics were also obtained under the similar conditions. The optimum heating schedule and additive composition were proposed.