Abstract
Ultrafine silicon carbide powder with an average particle size of 90 nm was densified by hot-processing with the addition of Al2O3, Y2O3, and CaO at 1750 °C. Silicon carbide nanoceramics with an average grain size of 110 nm were prepared by liquid phase sintering at low temperature. The materials showed superplastic deformation at a strain rate of 5.0 × 10-4/s at 1700 °C, which is the lowest temperature published. The microstructure and deformation behavior of materials from a submicrometer powder were also investigated as a reference.
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Mitomo, M., Kim, YW. & Hirotsuru, H. Fabrication of silicon carbide nanoceramics. Journal of Materials Research 11, 1601–1604 (1996). https://doi.org/10.1557/JMR.1996.0200
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DOI: https://doi.org/10.1557/JMR.1996.0200