alexa Fabrication of porous SiO2 C composite from rice husks.


Research & Reviews: Journal of Pure and Applied Physics

Author(s): TakanoriI Watari, Akihiro Nakata, Yoshimi Kiba, Toshio Torikai, Mitsunori Yada

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Porous SiO 2 /carbon composites were fabricated by heating pellets composed of rice husk (RH) powders in small (<74μm), medium(74–175μm) and large(150–300μm) sizes. The contents of the small RH were fixed at 30mass% and the RH pellets molded at 10, 15, and 30MPa were heated at 800–1150°C in an inert atmosphere. The weight loss due to the thermal decomposition of the organic materials in the pellet peaked at 1000°C, whereas the specimen heated at 1000°C showed the lowest carbon content and density, 29mass% and 0.40gcm −3 , respectively. The SiO 2 phase of the specimens were amorphous at 800 and 1150°C, but a cristobalite phase was visible at 1000°C.

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This article was published in Journal of the European Ceramic Society. and referenced in Research & Reviews: Journal of Pure and Applied Physics

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