粉体工学会誌
Online ISSN : 1883-7239
Print ISSN : 0386-6157
ISSN-L : 0386-6157
反応雰囲気におけるボールミルでの粉砕・磨砕によるセラミックス粉体の表面処理 (第4報)
炭化珪素の表面処理
鈴木 昇郷 豊馬場 憲之伊藤 二郎遠藤 敦宇津木 弘
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1991 年 28 巻 11 号 p. 670-678

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The surface properties of silicon carbides pulverized in n-hexane and n-hexane solutions of cetanol or octadecyltriethoxysilane were investigated through their dispersive properties, by scanning electron micrographs (SEM), infrared absorption spectra, pyrolysis and the number of surface groups estimated from carbon contents and surface areas. The following were confirmed: (1) The surface nature of silicon carbide pulverized in n-hexane was hydrophilic and was similar to that of unpulverized silicon carbide. The surface nature of silicon carbide pulverized in an n-hexane solution of cetanol appeared to be hydrophilic, but it was hydrophobic in comparison with that of unpulverized silicon carbide. The surface nature of silicon carbide pulverized in an n-hexane solution of octadecyltriethoxysilane appeared to be hydrophobic (2) The pulverization was confirmed by SEM to proceed with increase in grinding time. (3) The characteristic absorption due to surface groups was observed in that of silicon carbide pulverized in n-hexane solutions of cetanol or octadecyltriethoxysilane. The vapors evolved by the pyrolysis of the surface group were observed. (4) The surface-treatment of silicon carbide was confirmed to be performed by pulverization in n-hexane solutions of cetanol or octadecyl-triethoxysilane. (5) The reaction mechanisms were confirmed to be,

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