Silicon carbide particle formation from carbon black : polymethylsilsesquioxane mixtures with melt pressing
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概要
- 論文の詳細を見る
Precursors for silicon carbide nano particles were prepared from carbon black and polymethylsilsesquioxane (PMSQ). Ceramization process of PMSQ was characterized as preliminary information. The ^<29>Si NMR study indicated the existence of SiC_3O (or SiC_4) environment even at 1073K. The chemical composition of pyrolyzed PMSQ was SiO_<1.5>C_<0.68>. Carbon black (CB) was dispersed in a PMSQ benzene solution and the mixture was freeze-dried to obtain precursor powders. The powders were hot pressed at 573K for making contacts between CB and PMSQ. The cured precursor sheets were crushed and heat-treated at 1838K in an inert atmosphere to synthesize SiC particles with a carbothermal reduction process. The conversion process of the CB-PMSQ hybrids to SiC was monitored by thermogravimetric analysis. The influence of the size and content of carbon blacks on conversion rates and the resulting SiC particle morphology was investigated.
- 社団法人日本セラミックス協会の論文
- 2008-01-01
著者
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MABUCHI Hiroshi
Department of Laboratory Science, Kanazawa University
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Mabuchi Hiroshi
Department Of Internal Medicine And Molecular Genetics Of Cardiovascular Disorders Division Of Cardi
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Kim Young-Wook
Department of Materials Science and Engineering, the University of Seoul
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Kim Young-wook
Department Of Materials Science And Engineering The University Of Seoul
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Mabuchi Hiroshi
Department Of Materials Science Graduate School Of Engineering Osaka Prefecture University
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NARISAWA Masaki
Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University
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YASUDA Hiroya
Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University
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MORI Ryota
Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University
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OKA Kunio
Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
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Narisawa Masaki
Dep. Of Materials Sci. Graduate School Of Engineering Osaka Prefecture Univ.
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Oka Kunio
Department Of Applied Chemistry Graduate School Of Engineering Osaka Prefecture University
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Mori Ryota
Department Of Materials Science Graduate School Of Engineering Osaka Prefecture University
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Yasuda Hiroya
Department Of Materials Science Graduate School Of Engineering Osaka Prefecture University
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