Abstract
Fine Si3N4‐SiC composite powders were synthesized in various SiC compositions to 46 vol% by nitriding combustion of silicon and carbon. The powders were composed of α‐Si3N4, β‐Si3N4, and β‐SiC. The reaction analysis suggested that the SiC formation is assisted by the high reaction heat of Si nitridation. The sintered bodies consisted of uniformly dispersed grains of β‐Si3N4, β‐SiC, and a few Si2N2O.
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