The carbothermal reduction process of a montmorillonite-polyacrylonitrile intercalation compound

Yoshiyuki Sugahara*, Kazuyuki Kuroda, Chuzo Kato


研究成果: Article査読

29 被引用数 (Scopus)


To develop a carbothermal reduction process for the conversion of oxides to nitrides, a montmorillonite-polyacrylonitrile (PAN) intercalation compound was applied as a precursor. Montmorillonite-carbon mixtures were heated as well as the intercalation compound in N2 at 1100 to 1500° C for comparison. From the intercalation compound, β-sialon, AIN and SiC were mainly formed. Oxides were reduced without their crystallization. On the other hand, in the reactions of the mixtures, some oxides and other kinds of nitride were obtained as principal products in addition to these phases. Furthermore, the intercalation compound was more favourable than the mixtures having a larger amount of carbon in terms of the reduction of oxides and the formation of nitrides. These observations suggest that the layered structure of the intercalation compound led to an effective and specific carbothermal reduction process.

ジャーナルJournal of Materials Science
出版ステータスPublished - 1988 10月

ASJC Scopus subject areas

  • 材料科学一般
  • 材料力学
  • 機械工学


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