窯業協會誌
Online ISSN : 1884-2127
Print ISSN : 0009-0255
マガディアイト-ポリアクリロニトリル層間化合物の合成と炭化ケイ素への変換
菅原 義之杉本 健一柳澤 恒夫野水 泰之黒田 一幸加藤 忠蔵
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1987 年 95 巻 1097 号 p. 127-133

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A magadiite (layered polysilicate)-polyacrylonitrile (PAN) intercalation compound was first prepared to investigate its potential as a precursor for the synthesis of non-oxide ceramics by carbothermal reduction. Acrylonitrile monomer was intercalated and polymerized in the interlayer space of a C12H25N(CH3)3-magadiite complex. After the cyclization of PAN by the heat treatment in air, the compound was heated in Ar flow for 2h. Above 1300°C, β-SiC was formed without the formation of any crystalline SiO2 phases. Since the reactions of a magadiite-carbon mixture involved the formation of cristobalite, it was shown that SiO2 from magadiite was reduced to form β-SiC without crystallization, which was caused by the presence of PAN in the interlayer space.

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