Synthesis of SiC nano-powders from liquid carbon and various silica sources
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概要
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The precursors of SiC powders were fabricated from various silica and phenolic resin sources of Si and C. The silica particles were 3.7 µm to 34 nm in size, and much finer silica was obtained from a liquid tetraethoxysilane oligomer. Silica and phenolic resin mixtures were cured and carbonized to form SiC precursors, and fine SiC powders were synthesized by carbothermic reaction of the precursors at 1600–2000°C. Powders with a grain size of 10–30 nm were synthesized at 1600°C from liquid silica and C. Dispersed SiC powder in water had primary grain size of 10–30 nm. SiC yield was higher from precursors having higher C/Si ratios. The carbon dispersion on fine-grain SiO2 was important in fabricating the SiC nano-powders.
- 公益社団法人 日本セラミックス協会の論文
著者
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SAKKA Yoshio
Nano Ceramics Center, National Institute for Materials Science
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Yoshioka Yoshiki
New Technology Research Laboratory, Sumitomo Osaka Cement Co. Ltd.
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Konishi Mikio
New Technology Research Laboratory, Sumitomo Osaka Cement Co. Ltd.
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Tanaka Hidehiko
Nano Ceramics Center, National Institute for Materials Science
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NISHIMURA Toshiyuki
Nano Ceramics Center, National Institute for Materials Science
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Sakka Yoshio
Nano Ceramics Center And Wpi Centr Initiative For Materials Nanoarchitronics (mana) National Institu
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Nishimura Toshiyuki
Nano Ceramics Center National Inst. For Materials Sci.
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Tanaka Hidehiko
National Institute For Research In Inorganic Materials Nirim
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Tanaka Hidehiko
National Institute For Materials Science Nano Ceramics Center
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Tanaka Hidehiko
National Institute For Materials Science
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Tanaka Hidehiko
National Inst. For Materials Sci. (nims)
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