Nanostructured silicon carbide ceramics fabricated through liquid-phase sintering by spark plasma sintering
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概要
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Fully dense nanostructured SiC ceramics were fabricated by spark plasma sintering of nanosized β-SiC powder with 40 nm in diameter through liquid-phase sintering at the total content of 10 vol % of sintering additives composed of 95 mol % AlN and 5 mol % Y2O3. The dense SiC ceramics sintered at 1900°C for 300 s consisted of equiaxed grains with the mean grain size of 70 nm without significant grain growth during the sintering. The full densification (>99% of theoretical) of the nanosized β-SiC powder was achieved at more than 5 vol % of the AlN–Y2O3 additive. The grain size decreased with increasing total amount of AlN–Y2O3 additive and decreasing holding time at 1900°C.
著者
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Hojo Junichi
Department of Applied Chemistry, Faculty of Engineering, Kyushu University
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KITA Hideki
Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Tec
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Hotta Mikinori
Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Tec
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Hojo Junichi
Department Of Applied Chemistry Faculty Of Engineering Kyushu University
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Hotta Mikinori
Advanced Manufacturing Res. Inst. National Inst. Of Advanced Industrial Sci. And Technol. (aist)
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Kita Hideki
Advanced Manufacturing Res. Inst. National Inst. Of Advanced Industrial Sci. And Technol. (aist)
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Hojo Junichi
Department Chemistry & Biochemistry, Graduate School of Engineering, Kyushu University
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HOTTA Mikinori
Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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